HomeMy WebLinkAboutFour Seasons Storm water permit il
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T'OV��V 0� YA��
75 South Frontage Rd. Department of Community Development
Vail, Colorado 81657 William T. Carlson, REHS
970-479-2138/479-2139 Environmental Health Officer
FAX 970-479-2452
March 19,2008
Mark Reed, Superintendent
Layton Construction, Inc.
9090 S. Sandy Parkway
Sandy,Utah 84070
RE: Facility Inspection
Four Seasons Storm Water Permit
CDPS Permit No. COR-038447
Town of Vail
Dear Mr. Reed:
An inspection of the above-referenced facility was conducted by the Town of Vail on March 18,2008.The
inspection procedure consists of two parts: a review of records, and an on-site facility inspection. Findings
associated with the inspection are detailed in the enclosed inspection report. You must correct the findings
noted in the enclosed inspection report, submit an explanation on how each finding was corrected,and
submit the requested materials to the Town of Vail,75 s. Frontage Road, Vail, CO 81657, and to the
Colorado Department of Public Health and Environment, WQCD-P-B2,4300 Cherry Creek Drive South,
Denver, CO 80246-1530, Attn: Matt Czahor by May 1,2008.
For facilities covered under a Colorado Discharge Permit System (CDPS)general permit, failure to comply
with any CDPS permit requirement constitutes a violation of the Federal Clean Water Act and the Colorado
Water Quality Control Act,25-8-]Ol.
If you have any questions, please call me at(970)-479-2333.
Sincer ly
William T. Carlson, REHS
Environmental Health Officer
Enclosures
cc: Matt Czahor, Water Quality Control Division
File Copy
' . .
:
Stormwater Inspection Report
Permittee: Vail Develo ment, LLC Facili Number: COR-038447 Date: 03/18/2008
Facili : Four Seasons Industrial T e: Construction Receivin Water: Gore Creek
Facility Address: 13 Vail Road, Vail, Colorado 81657
Persons resent: Mark Reed, La on Construction, Mike Ellis, La on Su erintendent
Facility Re resentative(s)/Title(s): Mark Reed, Project Su erintendent Ins ector: Bill Carlson, Town of Vail
Inspection Findings
Records Review
1. Site development and project activities began in July, 2005. Site excavation activity began during December,2006.
The Stormwater Management Plan (SWMP)and sedimentation control site plan was available on site for review. The
civil engineering drawings illustrate gravel filled sandbag inlet protection, silt fence, sedimentation ponds with
overflow weirs for storm water treatment, and silt fencing surrounding excavated material stockpiles.
2. Inspection records were available and performed every day or after a snow or rain event. Inspections must be conducted
every 14 days, except during winter snow pack conditions where no melting is occurring, or when all construction
activities are completed. When all construction activities are completed but final stabilization has not been achieved
due to a vegetation cover that has been planted but has not become established, inspections must be conducted at least
once a month.
Facility Inspection
Note: All BMPs mentioned in the below findings must be installed according to specifications and design criteria outlined in the
SWIVIP. These specifications and design criteria must meet best engineering practice requirements.
3. It was noted during the inspection that concrete has been disposed at the site entrance off the Frontage Road (see
attached picture#I). Concrete waste shall be placed in a temporary concrete washout facility located a minimum of 50
feet from drainage ways and inlets which discharge directly to Gore Creek. A concrete washout area with signage such
as"Concrete Washout" must be properly installed according to best engineering practices and included in the SWMP.
4. It was noted during the inspection that adequate BMPs were not maintained to prevent the discharge of sediment from
the project along Meadow Drive (see attached picture#2) resulting in sediment laden stormwater discharging to street
sewer inlets and ultimately into Gore Creek. All site boundary BMPs must be implemented, inspected and maintained
in good and effective operational condition to prevent the discharge of sediment from those portions of the site onto
Meadow Drive. Street sweeping and maintenance must occur daily or as needed when soil and sediment from the
construction site discharges to the street.
5. I was noted during the inspection that the gasoline fuel storage tank in the materials storage shed area is exposed
without containment structures or other perimeter controls(see attached pictures#3 & 4). A secondary containment
structure or approved BMP must be installed and shall be inspected routinely.
6. Visible soil and sediment was observed at the Frontage Road entrance to the construction site(see attached picture#5).
In order to prevent soil and sediment from tracking off site to the street storm sewer inlet and ultimately into Gore
Creek, the entrance must be maintained and sweep daily.
7. It was observed during the inspection that BMPs installed for inlet protection around street storm sewer inlets along the
Frontage Road were overwhelmed by the amount of sediment coming from the construction site resulting in discharge
into the inlets(see attached pictures #6& 7). All storm sewer inlets discharge directly into Gore Creek. BMPs at street
storm sewer inlets must be installed and maintained to prevent the discharge of sediment into the Town of Vail storm
sewer system.
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April 28, 2007
Colorado Division of Public Health and Environment
WQCD-P-B2, Cherry Creek Drive South,
Denver, Colorado 80246-1530
Attn. Matt Czahor
RE: Facility Inspection
Four Seasons Storm Water Permit
CDPS Permit # CUR-3844`7
In regards to the site inspection dated 3-18-2008 the following corrections have been
made.
Item # 3. A containment box has been placed where the trucks are pumping concrete into
the pump trucks, although no truck wash out takes place in this area occasional spillage
does occur. All washout of trucks takes place on the south side of the project in a location
where the deep inside the project. A Containment box has been placed in the area noted
in the inspection.
Itein # 4. Gravel was refreshed in this area where trucks enter and exit the project, as we
have done all along a street sweeper does daily sweeps as needed although we do not rely
on the sweeper to clean up after the fact. Men are stationed at the gates with brooms to
sweep up any tracking that does occur.
Item # 5. All fuel is stored in a fuel containment container.
Item # 6. Gravel was refreshed at this entrance and it is swept daily.
Item # 7. All drop inlets that surround the project have had the protection bags replaced
and the curbs around them have all been cleaned.
Sincerely,
Mark Reed
�
Sr. Project Superintendent
Layton Construction
c. William T. Carlson
Town of Vail, Dept. of Community Development
4
�
Stormwater Inspection Form (Construction Industry)
Colorado Stormwater Program(WQCD-B2-PE)
Phone(303)692-3575 Fax(303)782-0390
Email: cdpheWQStorm@cdphe.state.co.us
General Information
Name of facility: CDPS#: CO_ 6�_ 5��7
Facilit Informati J� /�
City: �/ County: �cs Address/Directions: l �% / /�e-/'
Name(s) of Onsite Representative(s): � ` � �S hone: (cj7�) - °
�,� e
Permittee If not ermitted Owner or O erator �, �,
CompanyName:_�i►d�►-�8. T�.� Name ofResponsible Official:
Title of Responsible Official: S ,o S M ��P��►S�one: ( )
Address:
Inspector(s): ��7��Sc�_� ersons present:
Inspecting Agency:����1��
Date conducted:� / �/� Pictures Taken? Yes No
Records
Copy of SWMP confirmed on site? es No
SWMP Review:
1. Site description as required in the permit? es No
Notes:
2. Site map as required in the permit? Yes No
Notes: f��I� �aLN �
3.BMPs for stormwater pollution prevention:
a.Erosion and s diment controls a�required in the permit? i, Yes No
Notes: � � � � �
� o
b.Materials handlin�d spill prevention? \ �, Yes No
Notes: ` ���� ���`P
c !a �
4.Final Stabilization and long term stom�.water m ageme t as re u' d in the permit Yes No
Notes: ' `� � �'S � n�
0
5. Other controls a�quired in the pe it? , es ,, No
Notes: � �-r � � �
6. Inspection and maintenance as required in t e permrt? es No
Notes:/
Inspection records kept? Yes No
Inspections conducted as required in the permit? Yes No
Notes:
Construction start date? — -- �
�
r
� Stormwater Inspection Form (Construction Industry) Page 2
Site Ins ection
BMPs implemented for sediment control? Yes' No
Notes:
BMPs implemented for erosion control? es No
Notes:
BMPs implemented for materials handling, spill prevention, and spill cleanup? Yes No
Notes:
BMPs implemented for good housekeeping? No
Notes:
BMPs implemented for inspection and maintenance of stormwater management devices? Yes No
Notes:
BMPs implemented for vehicle tracking control? Yes No
Notes:
Evidence of ofFsite transport of sediment or other pollutants? Yes No
Notes:
Evidence of offsite transport of sediment or other pollutants reaching state waters? Yes No
Notes:
Evidence of discharges other than stormwater? Yes No
Notes:
Comments: �/" � /
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75 South Frontage Rd. Department of Community Development
Vail, Colorado 81657 William T. Carlson, REHS
970-479-2138/479-2139 Environmental Health Officer
FAX 970-479-2452
. November 17,2006
Mark Reed, Superintendent
Layton Construction,Inc.
9090 S. Sandy Parkway
Sandy,Utah 84070
RE: Facility Inspection
Four Seasons Storm Water Permit
CDPS Permit No.COR-038447
Town of Vail
Dear Mr. Reed:
An inspection of the above-referenced facility was conducted by the Town of Vail on November 15,2006.
The inspection procedure consists of two parts: a review of records,and an on-site facility inspection.
Findings associated with the inspection are detailed in the enclosed inspection report. The installation of
the sedimentation pond must be completed prior to pumping and discharge of wastewater into the Town of
Vail stormwater sewer system.
For facilities covered under a Colorado Dischazge Permit System(CDPS)general permit,failure to comply
with any CDPS permit requirement constitutes a violation of the Federal Clean Water Act and the Colorado
Water Quality Control Act,25-8-101.
If you have any questions,please call me at(970)-479-2333.
Sincerely,
William .Carlson,REHS �
Environmental Health Officer
Enclosures
cc: Matt Czahor,Water Qualiry Control Division
File Copy
� Stormwater Inspection Report
Permittee: Vail Development, LLC FacilityNumber: COR-038447 Date: 11/IS/2006
Facility: Four Seasons Industrial Ty e: Construction Receivina Water: Gore Creek
Facility Address: 13 Vail Road, Vail, Colorado 81657
Persons resent: Mark Reed, Layton Construction, David Brooks, Owner Re ., Jim McNeil, A1 ine En ineerin
Facility Representative(s)/Title(s): Mark Reed,Project Superintendent Ins ector: Bill Carlson, Town of Vail
Inspection Findings
Records Review
1. Site development and project activities began in July, 2005. Site excavation activity is scheduled to begin during
December,2006. The Stormwater Management Plan(SWMP)and sedimentation control site plan was available on site
for review. The civil engineering drawings illustrate gravel filled sandbag inlet protection, silt fence, sedimentation
ponds with overflow weirs for storm water treatment, and silt fencing sunounding excavated material stockpiles.
2. Inspection records were not available and performed every day or after a snow or rain event. Inspections must be
conducted every 14 days, except during winter snow pack conditions where no melting is occurring, or when all
construction activities are completed. When all construction activities are completed but final stabilization has not been
achieved due to a vegetation cover that has been planted but has not become established, inspections must be conducted
at least once a month.
Facilitv Inspection
Note: All BNIPs mentioned in the below findings must be installed according to specifications and design criteria outlined in the
SWMP.These specifications and design criteria must meet best engineering practice requirements.
3. It was observed during the inspection that the sedimentation pond has not been installed. The sedimentation pond with
overflow weirs for storm water treatment must be installed prior to pumping and/or discharge of wastewater€Fe�to the
storm sewer that discharges into Gore Creek.
4. It was noted during the inspection that the silt fence on the east perimeter of the site has an accumulation of snow and
sediment reaching more than '/z the height of the fence with failure of the support stakes in the up slope position(see
attached pictures 1 & 2).The silt fence BMP must be inspected, sediment build up removed, and the support stake
placed on the down-slope side of fence and strong enough to hold anticipated flows.
5. It was noted during the inspection that the silt fence along the south boundary with Nine Vail Place is overwhelmed and
blown-out (see attached picture 3 &4).The silt fence must be inspected, sediment build up removed, and maintained in
good and effective operational condition.
6. It was noted during the inspection that a designed concrete waste washout facility is not provided in the SWMP. A
concrete washout area with signage must be properly installed according to best engineering practices and included in
the an updated SWMP.
7. It was noted during the inspection that the two(2) stabilized construction entrances have not been installed. Prior to
any additional site disturbance or excavation activities, stabilized construction entrance structure must be installed and
maintained in accordance with the SWMP.
Note: A copy of the SWMP must be made available for review at the project site oftice.
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Alpine Engineering,�nc. ALPINE
34510 Unit A-9, Edwards Business Center — —
P.O. Box 97, Edwards,CO 81632 - -- =
PH: (970)926-3373 FAX: (970) 926-3390 ENGINEERING iNc
LETTER OF TRANSMI TAL:
To: �/'��(� Date: �l �
Job No: � �
�� ._. Job Title: iG�-�
Co:
T— ' �' ' ,�
We are sending the following items via
shop drawings reproductions originals specifications
copy of letter change order samples other
COPIES DESCRIPTION DATE
O
Y `7 �
These are transmitted:
for approval as requested reviewed for your use
for review and comment for your record after loan to use other
// C �
Remarks: `Gl d��� ^--�
Copies to:
Signed•
STAT� OF C�LOIZAD�
Bill Owens,Governor
Dennis E.Ellis,Executive Director ti°f �O�,p
�—
Dedicated to protecting and improving the health and environment of the people of Colorado �e'%�- '90
� 2�� o
4300 Cherry Creek Dr.S. Laboratory Services Division '1~��` *
Denver,Colorado 80246-1530 8100 Lowry Blvd. *�"°�*
Phone(303)692-2000 Denver,Colorado 80230-6928 �876
TDD Line(303)691-7700 (303)692-3090 Colorado Department
Located in Glendale,Colorado
of Public Health
http://www.cdphe.state.co.us and Environment
October 31,2006
Douglas Hipsland,Vice Manager
Vail Development, LLC
50 S. 6th Street, Ste 1480
Minneapolis,NIN 55402
RE: Amended Certification,for the Colorado Wastewater Discharge Permit System
Permit Number: COG700000,Facility Number: COG072206
Dear Mr.Hipskind:
Enclosed please find a copy of the amended Certification,which was issued under the Colorado Water
Quality Control Act. You are legally obligated to comply with all terms and conditions of the permit and
certifications.
Please read the amendment and if you have any questions, contact me at(303)692-3531. Should you
have questions on the amendment fee,please call(303)692-3529.
Sincerely,
C��'��� �� -
Loretta Houk
Water Quality Protection Section
WATER QUALITY CONTROL DNISION
Enclosure
xc: Regional Council of Government
Eagle County,Local County Health Department
Mark Kadnuck/Andy Poirot,D.E.,Technical Services Unit,WQCD
Permit File
Permit Fees
nh amd-cert
Pernur No. COG-070000
Faciliry No. COG-072206
Page l
AMENDMENT TO CERTIFICATION
AUTHORIZATION TO DISCHARGE UNDER THE
CDPS INDUSTRIAL GENERAL PERMIT
FOR CONSTR UCTION DEWATERING OPERATIONS(SIC No: 1629)
Category 27,Subcategory 5, General Permits, Current fee$358.00 for 1 year per CRS 25-8-502
Amendment jee is 25%of 5358=$89.50
This permit specifically authorizes, Vail Development, LLC
c%Four Seasons Resort
Douglas Hipskfnd
50 South 6`ti Street
Minneapolis, MN 55402
(612)313-0123
with the facility contact of, James McNeil, P.E.,Principal,Alpine Engineers, Incorporated(970)453-6064
to dischargefrom the Four Seasons Resort Project,located in the NE%.ofSection 7, TSS,RSOW(Longitude 106°23'30"Latitude 39°38'45'),
in Vail,Eagle County, Colorado(81657);from the discharge points identifted as Outfalls OOIA-002A,as shown in figures I-3 of the permit and
further identified ancl described in this table.
— -- —
��-� �.,'. � � �', x� � � Descri tion � �:: � ���� ��.
,�turge Points . �.�„ .����;°� ���� � P ,� � stim ated FIvr�7
:�. _
_ ,..�.�_--..
��,_
OOIA-002A Dischar es o treated r�undtitiute�nrior_to�nt�rin�Gore Creek. Max=»�D m ea.
The discharges are to Gore Creek, Segment 8 of the Eagle River Sub-basin, Upper Colorado River Basin,found in the Classifcations and
Numeric Standards for the Upper Coloratlo River Basin(S CCR /002-33);last update effective March 2,2006. Segment 8 is classifted for the
following uses:Recreation, Class 1 a;Aguatic Life, CZass I (Colcl);Agriculture; Water Supply.
Salinity(TDS)monitoring of the rfischarge will be required.
Phosphorus monitoring of the diseharge will not be reguired.
Antidegradation review does not apply to this permit because no parameters limitecl by water guality standards other than pH are expected.
Refer to page 4 of the permit for applicable limitations and to page 5 for monitoring requirements.
The permittee shall implement and maintain the Best Management Practices(BMP)for the prevention of erosion and the contr-ol ofsolid and liquid
pollutants due to the discharge. BMPs include various options,such as:modification of the pipe discharge structure to disperse flows;containment
of water by hay bales or other comparable structures,-the use ofgeocloth,ftlter fabric,or plastic sheeting for protection of containment structures;
rip-rap;ancl/or any other approved methods.
/f groundwater contamination is encountered,then the permittee is to contact the Division and, if appropriate, the owner of the collection system
receiving the discharge.Since the discharge oJcontaminated groundwater is not covered un�ler this permit,the permittee shall immectiately applyfor
a grounrlwater remediation certification,which will include appropriate requirements foradditional discharge monitoring and on-site environmental
response capabilities.
The permittee shall provide the Division with any additional monitoring data on the permitted discharge collected for entities other than the Division.
This will be supplied to the Division within 48 hours of the receipt of the data by the perminee.
This amendment changes the flow to 5500 gpm
All correspondence relative to this facility should reference the specific faciliry number, COG-072206.
Raymond Nalepa
October 27,2006
AMENDED AND EFFECTIVE: OCTOBER 30 2006 EXPIRATION: MAY 17 2007
This facility permit contains 19 pages.
Revisert!0/31/Z006
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Stormwater Inspection Form (Construction Industrv)
Colorado Stormwater Program (WQCD-B2-PE)
Phone(303)692-3575 Fax(303) 782-0390
Email: cdpheWQStorm@cdphe.state.co.us
General Information
Name of facility: r' •J �fCDPS#: CO �_ 1 j�
cSa %
Facilit Informatio �/ n �y
City: County: �� Address/Directions: � �7�% /�1
Name(s)of Onsite Representative(s): ' � � hone: (�� ) S G`c'S���9a
In�1z�< e (',..�. S� ✓ � � ,
Permittee (If not permitted,Owner or Operator) ��io s� ��u y : P ��� M � , >
Company Name: J�f� „c> �n � S� (l� Name of Responsible Official:
Title of Responsible Official: �r�;�_��,�' nhone: ( )
Address:
Inspector(s): �: �_�'I,�r J� �'� � � Persons present:
Inspecting Agency: �p�1 a /— � , I
Date conducted:�/�/ 2�� Pictures Taken? Yes No
Records
Copy of SWMP confirmed on site? GJ� � ,� „ (r�CJ d�S Yes No
SWMP Review:
1. Site description as required in the permit? es ` No
Notes:
2. Site map as required in the permit? es No
Notes:
3. BMPs for stormwater pollution prevention:
a. Erosion and sediment controls as required in the permit? es; No
Notes: --�
� � �% J��
b. Materials handling and spill prevention? Yes No
Notes:
4. Final Stabilization and long term stormwater management as required in the permit Yes No
Notes:
5. Other co�is as re ed in e rmit? �- 1'iQ . �a �C.:y Yes ' No
Notes: � �J c� �e�y��Sl 1�S �.�� ���� /�c�
6. Inspection and maintenance as required in the permit? Yes No
Notes:
Inspection records kept? ����� �' L�p<��„ �� Yes No
Inspections conducted as required in th pennrt? �Q\ ���,> /y �\�r(r � Yes No
Notes: ���v � -�i
Construction start date? ,
� � o �v
i
Stormwater Inspection Form (Construction Industry) Page 2 ��
Site Ins ection �
BMPs implemented for sediment control? Yes No I�
Notes:
BMPs implemented for erosion control? Yes No
Notes:
BMPs implemented for materials handling, spill prevention,and spill cleanup? Yes No
Notes:
BMPs implemented for good housekeeping? Yes No
Notes:
BMPs implemented for inspection and maintenance of stormwater management devices? Yes No
Notes:
BMPs implemented for vehicle tracking control?�� C����, ��&C e Yes No
Notes: ( _�
Evidence of offsite transport of sediment or other pollutants? Yes No
Notes:
Evidence of offsite transport of sediment or other pollutants reaching state waters? Yes No
Notes:
Evidence of discharges other than stormwater? Yes No
Notes: �
�
��
�
Comments: � � � ?�� ���� � �'
�- / � (~o
S� � � S � ���� ,� G��s�
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e
� �e� � �C� � � S Ic�(�cJ
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� ,
+ • � + v II
STAT�, OF COLOIZADO
Bill Owens,Governor
Dennis E.Ellis,Executive Director ��oF��oCO�
Dedicated to protecting and improving the health and environment of the people of Colorado Ne �: ';�90
4300 Cherry Creek Dr.S. Laboratory Services Division *`?' ;° � *
Denver,Colorado 80246-1530 8100 Lowry Bivd. *,� **
Phone(303)692-2000 Denver,Colorado 80230-6928 1876
TDD Line(303)691-7700 (303)692-3090 Colorado De artment
Located in Glendale,Colorado P
of Public Health
http://www.cdphe.state.co.us and Environtnent
May 17,2006
Douglas Hipskind,Vice Manager
Vail Development,LLC
50 S. 6th Street, Ste 1480
Minneapolis,MN 55402
RE: Certi�cation,Colorado Wastewater Discharge Permit System:
Permit Number: COG070000,Facility Number: COG072206
Dear Mr.Hipskind:
Enclosed please find a copy of your certification which was issued under the Colorado Water Quality
Control Act. You are legally obligated to comply with all terms and conditions of the permit and
certifications.
Please read the permit and if you have any questions contact me at(303)692-3531.
Sincerely,
���..�;����� r��
Loretta Houk,Administrative Assistant
Water Quality Protection Section
WATER QUALITY CONTROL DNISION
xc:Regional Council of Government
Eagle County,Local County Health Department
Mark Kadnuck/Andy Poirot,District Engineer,WQCD
Permit File
Permit Fees File
PAYMENT IS DUE UPON RECEIPT OF THE PERMIT/CERTIFICATION
PLEASE WRITE YOUR PERMIT NUMBER ON YOUR CHECK TO ENSURE PROPER CREDIT
-------------------------------------------------------------------------------------------------------------------------------
PERMIT#COG-072206
INVOICE#500009833
Your permit covers four(4)quarters AMOi1NT DUE$358.00
Make checks payable to:
Colorado Department of Public Health&Environment
4300 Cherry Creek Drive South,ASD-AR-B 1
Denver,CO 80246-1530
IT IS ESSENTIAL THAT THIS FORM IS MAILED IN WITH YOUR PAYMENT.
.. • .
� + Permit No.COG-070000
Faciliry No.COC'r072206
Page 1
CERTIFICATION
AUTHORIZATION TO DISCHARGE UNDER THE
CDPS INDUSTRL4L GENERAL PERMIT
FOR CONSTR UCTION DEWATERING OPERATIDNS(SIC No:1629)
Category 27,Subcategory S, General Permits, Current fee$358.00 for 1 year per CRS 25-8-502
his permit specifically authorizes, Yail Development, LLC
c%Four Seasons Resort
Douglas Hipskind
50 South 6`�'Street
Minneapolis,MN SS402
(612) 313-0123
with the facility contact oj, James McNeil, P.E., Principal,Alpine Engineers,Incorporated(970)453-6064
to discharge jrom the Four Seasons Resort Project,located in the NE�/of Section 7, TSS,R80W(Longitude 106°23'30"Latitude 39°38'45'),
in Yail,Eagle Counry, Colorado(81657);from the dischargepoints identified as Outfalls OOIA-002A,as shown in figures 1-3 ofthepermit and
further identified and described in this table.
Discharge Points ' Description Estimated Flow Rate
OOIA-002A Dischar es o treated roundwater ��ior to enterin Gore Creek. �.r��, � Max=350 m ea.
�'�c. !� . ��° 7 ;',��
The discharges are to Gore Creek, Segment 8 of the Eagle River Sub-basin, Upper Colorado River Basin,found in the Classi�cations and
Numeric Standards for the Upper Colorado River Basin(5 CCR 1002-33);last update effective March 2, 2006. Segment 8 is classified for the
following uses:Recreation, Class 1 a;Aquatic Life, Class 1 (Cold);Agriculture; Water Supply.
Salinity(TDS)monitoring oJthe discharge wi[l be required.
Phosphorus monitoring of the discharge will not be required.
Antidegradation review does not apply to this permit because no parameters limited by water quality standards other than pH are expected.
Refer to page 4 of the permit for applicable limitations and to page S for monitoring requirements.
The permittee shall implement and maintain the Best Management Practices(BMP)for theprevention oferosion and the control ofsolid and liquid
pollutants due to the discharge. BMPs inclzrde various options,such as:modification ofthepipe dischargestrzrcture to disperseflows;containment
of water by hay bales or other comparable structures;the use ofgeocloth,filterfabric,orplastic sheetingforprotection ofcontainment structures;
rip-rap;ancUor any olher approved methods.
Ifgroundwater contamination is encountered, then the permittee is to contact the Division and, if appropriate, the owner of the collection system
receiving the discharge.Since the discharge ofcontaminated groundwater is not covered under this permit,thepermittee shall immediately applyfor
a groundwater remediation certification,which wil!include appropriate requirements for additional discharge monitoring and on-site environmental
response capabilities.
Thepermittee shall provide the Division with any additional monitoring data on thepermitted discharge collectedforentities other than theDivision.
This will be supplied to the Division within 48 hours of the receipt of the data by the permittee.
All correspondence relative to this faciliry should reference the speciftc facility number, COG-072206.
Christopher L. Gates
May 12, 2006
ISSUED AND EFFECTIVE: MAY 17,2006 EXPIRATION: MAY 17,2007
This facilitv permit contains 19 pages.
ne,�r5e�ts�is�Znn�
FIGURE 1
FOUR SEASONSRESORT
CONSTRUCTIONDEWATERING PROJECT
COG-072206
PAGE 17
FIGURE 2
FOUR SEASONS RESORT
CONSTRUCTIONDEWATERING PROJECT
COG-072206
PAGE 18
FIGURE 3
FOUR SEASONSRESORT
CONSTRUCTIONDEWATERING PROJECT
COG-072206
PAGE 19
Revised 5/!8/1006
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75 South Frontage Rd. Department of Community Development
Vail, Colorado 81657 William T. Carlson,REHS
970-479-2138/479-2139 Environmental Health Officer
FAX 970-479-2452
November 15,2005
Craig McPeek, Superintendent
Weitz Construction
141 E Meadow Drive �
Suite B-171
Vail,Colorado 81620
RE: Facility Inspection
Four Seasons Storm Water Permit
CDPS Permit No.COR-038447
Town of Vail
Dear Mr.McPeek::
An inspection of the above-referenced facility was conducted by the Town of Vail on November 15,2005.
The inspection procedure consists of two parts: a review of records,and an on-site facility inspection.
Findings associated with the inspection are detailed in the enclosed inspection report. The installation of
the sedimentation pond must be completed prior to pumping and discharge of wastewater into the Town of
Vail stormwater sewer system.
For facilities covered under a Colorado Discharge Permit System(CDPS)general permit, failure to comply
with any CDPS permit requirement constitutes a violation of the Federal Clean Water Act and the Colorado
Water Quality Control Act,25-8-101.
If you have any questions,please call me at(970)-479-2333.
Sincerely,
4 �
l
�/ �.
William . arlson,REHS
Environmental Health Officer
Enclosures
cc: Matt Czahor,Water Quality Control Division
File Copy
Stormwater Inspection Report
Permittee: Vail Development, LLC Facility Number: COR-038447 Date: 11/15/2005
Facility: Four Seasons Industrial T e: Construction Receivin Water: Gore Creek
Facility Address: 13 Vail Road,Vail, Colorado 81657
Persons resent: Craig McPeek,Weitz Com any
Facility Representative(s)/Title(s): Project Superintendent Inspector: Bill Carlson,Town of Vail
Inspection Findings
Records Review
1. Site development and project activities began in July, 2005. The Stormwater Management Plan(SWMP) and
sedimentation control site plan was available on site for review. The civil engineering drawings illustrate gravel filled
sandbag inlet protection, silt fence, sedimentation ponds with overflow weirs for storm water treatment, and silt fencing
surrounding excavated material stockpiles.
2. Inspection records were available and performed every day or after a snow or rain event. Inspections must continue
every 14 days, except during winter snow pack conditions where no melting is occurring, or when all construction
activities are completed. When all construction activities are completed but fmal stabilization has not been achieved
due to a vegetation cover that bas been planted but has not become established, inspections must be conducted at least
once a month.
Facilitv Inspection
Note: All BMPs mentioned in the below fmdings must be installed according to specifications and design criteria outlined in the
SWMP. These specifications and desib criteria must meet best engineering practice requirements.
3. It was observed during the inspection that the sedimentation pond has not been installed. The sedimentation pond with
overflow weirs for storm water treatment must be installed prior to pumping and/or discharge of wastewater from to the
storm sewer that discharges into Gore Creek.
4. The developer will designate a new construction contractor during 2006 who will contact the Town of Vail to discuss
construction sequencing prior to any site excavation activities.
Note: A copy of the SWMP must be made available for review at the project site office.
I
� Stormwater Inspection Form (Construction Industry) 'I
Colorado Stormwater Program(WQCD-B2-PE) ,
Phone(303)692-3575 Fax (303)782-0390
Email: cdpheWQStorm@cdphe.state.co.us
General Information
Name of facility: ��'��,�'� 5���;5�� S CDPS#: COL'��`��y C/"7
Facilit Informati /
City: �� � County: / , Address/Directions:
Name(s)of Onsite Representative(s): phone• )
�' J
Permittee If not ermitted Owner r erator �
��o� /�N�' '�;S" �x �
Company Name: ��� 2 J� ��,��, � C,�Vame of Responsible Official: C'�i� �
Title of Responsible Offi�ial: � / � � �;c' .>!��.'%'. hone: ( ) 5 / 4� - S�-j Z y
Address: S�; ` ,�L./��� ca �'3 r�, c �
T
Inspector(s): r � . � ,� �Persons present:
Inspecting Agency: �o�,� m j �,
Date conducted:�/ /S / 2ObS Pictures Taken? Yes No
Records
Copy of SWMP confirmed on site? Yes No
SWMP Review:
1. Site description as required in the permit? � Yes No
Notes:
2. Site map as required in the permit? Yes No
Notes:
3. BMPs for stormwater pollution prevention:
a. Erosion and sediment controls as required in the permit? Yes No
Notes:
b. Materials handling and spill prevention? Yes No
Notes:
4. Final Stabilization and long term stormwater management as required in the permit Yes No
Notes:
5. Other controls as required in the permit? Yes No
Notes:
6. Inspection and maintenance as required in the permit? Yes No
Notes:
Inspection records kept? Yes No
Inspections conducted as required in the permit? Yes No
Notes:
Construction start date?
i
I
Stormwater Inspection Form (Construction Industrv) Page 2
Site Ins ection
BMPs implemented for sediment control? Yes No ,
Notes:
BMPs implemented for erosion control? Yes No
Notes:
BMPs implemented for materials handling, spill prevention, and spill cleanup? Yes No
Notes:
BMPs implemented for good housekeeping? Yes No
Notes:
BMPs implemented for inspection and maintenance of stormwater management devices? Yes No
Notes:
BMPs implemented for vehicle tracking control? Yes No
Notes:
Evidence of offsite transport of sediment or other pollutants? Yes No
Notes:
Evidence of offsite transport of sediment or other pollutants reaching state waters? Yes No
Notes:
Evidence of discharges other than stormwater? Yes No
Notes:
� �� .i-
Comments: � �.'�� i �1 � .�c , reJ �aNS . �C, rc�it�
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STORMWATER DISCHARGE INCIDENT REPORT
Project: Spraddle Creek Relocation
Weitz Project#: D522900
Project Address: 1 Vail Rd.,Vail, CO
Date of Incident: 11/23/OS
Individuals Present:
WSU Crews
Jim Kiegley—WSU Foreman
Jesus—WSU Foreman
Craig McPeek—The Weitz Company
Megan Washnieski—The Weitz Company
Bill Carlson—Town of Vail,Enviromental Health
Matt Czahor—State of Colorado
Additional State of Colarado Personnel
Mariy G.—Eagle River Water and Sanitation
Jim Boyd—Eagle River Water and Sanitation
Danny Doig—Eagle River Water and Sanitation
Chuck—Eagle River Water and Sanitation
Additional Eagle River Water and Sanitation Personnel
Incident Description:
At approximately 9:35 a.m.,WSU was excavating near vault#1 to expose of water line to be
relocated as part of the Spraddle Creek project. As earth was removed,a water main break
occurred and the excavation filled with water. As the water level rose,water entered the
abandoned 36"culvert running parallel to Vail Rd. and entered the trench for the new pipe being
placed between vault#3 and vault#4. The water then ran through the new pipe and filled the
excavation for vault#4. The water level rose to a level which breached the sand bags in place in
front of the existing Spraddle Creek culverts to the south of vault#4. The silty water traveled
through the existing culverts and discharged into Gore Creek. (See attached plan and photos.)
Remedial Actions Taken:
• Water valves were closed to prevent additional water from entering the excavations.
• A pump was placed at the excavation for vault#1 to pump water into the detention pond.
• A pump was placed at the excavation for vault#4 to pump water into the detention pond.
• The berm for the detention bond was built up and the depth of the detention pond was
increased to accommodate the volume of water being pumped into the pond.
• Straw bags were place at the discharge point into Gore Creek to filter the silty water.
(See attached plan and photos.)
Cause of Incident:
The post incident investigation revealed that a 6"vertical tee from a 12"main existed that was
not identified during the design,preconstruction,or construction locate phases of the project. The
6"tee discovered was the result of an abandoned fire hydrant and had been capped by a block of
concrete being placed on top of the cap. The concrete block and cap were being held in place by
the weight of the soils above. As the soil was being removed to reveal the water line,the pressure
in the waterline overcame the pressure of the weight of the approximate 4' of soil above the line
and the cap blew off resulting in water main"break".
Potential Hazards Avoided:
• No injuries.
• Water entered the abandoned storm sewer line rather than continuing to fill the excavation for
vault#1. Had the excavation for vault#1 been saturated,the stability of the round about
would have been seriously compromised.
• The detention pond existed to pump the water to. If this had not been the case,flooding
would have been a threat to adjacent properties and roadways to the south of the main break.
Lessons Learned:
• Maintain a detention pond if possible.
• If a detention pond is not possible,keep silt sacks on site when performing work near water
lines to filter discharge.
• Keep a pump on site when working near water lines.
Abandoned Culvert Between Vaults#1 
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STAT�, OF COLOR,�DO
Bill Owens,Governor
Douglas H.Benevento,Executive Director oF co�o
�w �, �
Dedicated to protecting and improving the health and environment of the people of Colorado N����;90
4300 Cherry Creek Dr.S. Laboratory Services Division *` '\`°�' '**
Denver,Colorado 80246-1530 8100 Lowry Blvd. ��876*
Phone(303)692-2000 Denver,Colorado 80230-6928
TDD Line(303)691-7700 (303)692-3090 Colorado Deparanent
Located in Glendale,Colorado
of Public Health
http://www.cdphe.state.co.us and Environtnent �
November 1,2005 'I
Douglas Hipskind,Owner
Vail Development,LLC
50 S.6th Street
Minneapolis,MN 55402
RE: Certification,Colorado Wastewater Discharge Permit System:
Permit Number: COG070000,Facility Number: COG072055
Dear Mr.Hipskind:
Enclosed please find a copy of your certification which was issued under the Colorado Water Quality Control Act.
You are legally obligated to comply with all terms and conditions of the permit and certifications.
Please read the permit and if you have any questions contact this office at(303)692-3590.
Sincerely,
i,�� `j �f L' i
����������.
` f
Debbie Jessop,Administrative Assistant
Water Quality Protection Section
WATER QUALITY CONTROL DIVISION
xc: Regional Council of Government
Eagle County,Local County Health Department
Mark Kadnuck/Andy Poirot,District Engineer,WQCD
Permit File
Permit Fees File
PAYMENT IS DUE UPON RECEIPT OF THE PERMIT/CERTIFICATION
PLEASE WRITE YOUR PERMIT NUMBER ON YOUR CHECK TO ENSURE PROPER CREDIT
PERMIT#COG072055
INVOICE#500009603
Your permit covers one(1)quarter AMOiJNT DUE $89.00
Make checks pavable to:
Colorado Department of Public Health&Environment
4300 Cherry Creek Drive South,ASD-AR-B 1
Denver,CO 80246-1530
IT IS ESSENTIAL THAT THIS FORM IS MAILED IN WITH YOUR PAYMENT
Permia No.COG-070000
Facility No.COG-071055
Page l
CERTIFIC.4TION
AUTHORIZATION TO DISCHARCE UNDER THE
CDPS IND USTRIAL GENERAL PERMIT
FOR CONSTRUCTIONDEWATERINC OPERATIONS(SICNo:1629)
Category 27,Subcategory 2, General Permits,Current jee a89.00 for 1 quarter per CRS 25-8-502
This permit specifically au[horizes, Vail Development, LLC
c%Four Seasons Reson
Douglas H�skincl
50 South 6` Street
Minneapolis,MN 55402
(612)313-0113
with the jacility contact of, James McNeil,P.E.,Principal,Alpine Engineers,Incorporated(970J 453-6064
to dischargeJrom the FourSeasons Resort Project,located in the NE'/.ofSection 7, TSS,RSOW(Longitude 106°23'30"Latitude 39°38'45'),
in Yail,Eagle County,Colorado(81657);from the discharge points identified as Outfalls 001 A-OOlA,as shown in figures/-3 of the permit and
further ident f ed and described in this table.
Discharge Points Descrtptlon Eslimated Flow Rate
OOIA-002A Discha es o treated oundwater rior to enterin Gore Creek Ma.r=350 m ea.
The discharges are to Core Creek, Segment 8 of the Eagle River Sub-basin, Upper Colorado River Basin,jound in the Classifications and
Numeric Standards or the Upper Colorado River Basin(S CCR 1002-33);last update effective January 20,2004. Segment 8 is class�ed for the
following uses:Recreation, Class la;Aquatic Life, Class I(Cold);Agriculture; WaterSupply.
Salinity(TDS)monitoring of the discharge wil!be required.
Phosphorus monitoring of tice discharge wil!not be required.
Antidegradation review does no[apply lo this permit because no parameters limited by water quality standards other lhan pH are expected.
Refer to page 4 of the permit for applicable limitations and to page S for monitoring requirements.
The permittee shall implement and maintain the Best Management Practices(BMP)for the prevention of erosion and the control ojsolid and liquid
pollutants due to the discharge. BMPs include various options,such as:mod�ation of the pipe discharge structure to disperse flows;containment
of water by hay bales or other comparable structures;the use ojgeocloth,filter fabric,or plcrstic sheeting for protection ojcontainment structures;
rip-rap;and/or any other approved methods.
Ijgroundwater conlamination is encountere�then the perminee is to contact thc Division and,if appropriate,the owner ojthe colleclion�ystem
receiving the discharge.Since[he discharge of contaminated groundwater is not covered under this permi�the permiitee shaU immediately apply
jor a groundwater remediation certification which will include appropriate requirements jor additional discharge monitoring and on-site
environmenta!response capabilities.
The permittee shal!pro vide the Division with any additional monitoring data on the permittecl discharge collected for entities other than the Division.
This wi11 be supplred to the Division within 48 hours of the receipt oJthe data by the permittee.
This certification to discharge is effective for 1 quarter.
All correspondence relative to rhis jacility should reference the specifec facility number, COG-072055.
Christopher L. Cates
October 27, 2005
This jacility permit contains 19 pages.
ISSUED AND EFFECTIVE: NOVEMBER 1,2005 EXPIRATION FEBRUARY 1.2006
eev;s�i iiii2oos
FIGURE 1
FOUR SEASONS RESORT
CONSTRUCTIONDEWATERING PROJECT
COG-072055
PAGE 17
FIGURE 2
FOUR SEASONS RESORT
CONSTR UCTION DEWATERING PROJECT
COG-072055
PAGE 18
FIGURE 3 I
FOUR SEASONS RESORT
CONSTRUCTIONDEWATERING PROJECT
COG-072055
PAGE 19
Revised l//!/2005
FOUR SEASONS RESORTS
v�, co�.ot��o
ERO�ON COt�lTROL PLAN
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COG-072055
PAGE 19
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STAT�, QF COLOR,ADO
Bill Owens,Governor
Douglas H.Benevento,Executive Director pF�COtp
,�`�,' 'P
Dedicated to protecting and improving the health and environment of the people of Coloredo �`�%`�o
4300 Cherry Creek Dr.S. Laboratory and Radiation 5ervices Division * � *
Denver,Colorado 80246-1530 8100 Lowry Blvd. `�+
Phone(303)692-2000 Denver,Coloredo 80230-6928 �e�s �
TDD Line(303)691-7700 (303)692-3090 Colorado Department
Located in Glendale,Colorado ofPublicHealrh
http://www.cdphe.state.co.us and Enviionment
June 28,2005
Douglas G.Hipskind,Vice Manager
Vail Development,LLC
50 S.6th Street Ste. 1480
Minneapolis,MN 55402
612/313-0123
RE: Final Permit,Colorado Discharge Permit System—Stormwater
Certification No: COR-038447,Eagle County
Four Seasons
Local Contact: James McNeil,PE,Principal-Alpine Engr.,970/453-6064
Anticipated Activity: 07/25/2005 through 12/31/2007
On 2.72 acres(3 acres disturbed)
Dear Sir or Madam
Enclosed please find a copy of the permit certifcation that was issued to you under the Colorado Water Quality Control
Act.
Your certificarion under the permit requires that specific actions be performed at designated times. You are legally
obligated to comply with all terms and conditions of your certification.
Note that the stormwater pernut for construction activities now covers construcrion sites disturbing down to one acre(the
previous threshold was 5 acres). Ef�ective July 1,2002,any construction activity that disturbs at least 1 acre of land(or is
part of a larger common plan of development or sale that wiil dishub at least 1 acre)must apply for permit coverage.
Please read the pernut and certification. If you have any questions please visit our website at
http://www.cdphe.state.co.us/wq/permitsunidwqcdpmt.html,or contact Matt Czahor at(303)692-3575.
Sincerely,
��� :� .�a� _
Kathryn Dolan
Stoimwater Program Coordinator
Pernuts Unit
WATER QUALITY CONTROL DIVISION
Enclosure
xc: Regional Council of Governments
Eagle County Health Department
District Engineer,Technical Services,WQCD
Permit File
Fee File
• I
. > �
Permit No. COR-030000 �
Facility No. COR-038447
PAGE 1 of 17
i
CERTIFICATION
CDPS GENERAL PERMIT
STORMWATER DISCHARGES ASSOCIATED WITH
CONSTRUCTION
Construction Activity: The construction activity includes demolition of existing buildings and
construction of a new building with parking.
This permit specifically authorizes: Vail Development,LLC
' to discharge stormwater from the facility identified as Four Seasons
which is located at: 13 Vail Road&28 S.Frontage
Vail, Co 81657
latitude 39/38/45, longitude 106/23/30 in Eagle County
Gore Creek to: Colorado River
effective: 06/28/2005
Annual Fee: $270.00 (DO NOT PAY NOW. You will receive a prorated bill.)
� , C
Page 2 of 17
Permit No. COR-030000
CDPS GENER.AL PERMIT
STORMWATER DISCHARGES ASSOCIATED WITH
CONSTRUCTION AGTIVITY
AUTHORIZATION TO DISCHARGE UNDER THE
COLORADO DISCHARGE PERMIT SYSTEM
In compliance with the provisions of the Calorado Water Quality Control Act, (25-8-101 et seq., CRS,
1973 as amended) and the Federal Water Pollution Control Act, as amended(33 U.S.C. 1251 et seq.; the
"Act"),this permit authorizes the discharge of stormwater associated with construction activities certified
under this pemut, from those locations specified throughout the State of Colorado to specified waters of
the State. Such dischazges shall be in accordance with the conditions of this permit.
This permit specifically authorizes the facility.listed on page 1 of this permit to discharge stormwater
associated with construction activity,as of this date,in accordance with permit requirements and �
conditions set forth in Parts I and II hereof. All discharges authorized herein shall be consistent with the
terms and conditions of this pezmit.
This permit and the authorization to discharge shall expire at midnight,3une 3Q,2007.
Issued and Signed this 21st day of May,2002
COLOR.ADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT
� .
F�.
7. David Holm,Director
Water Quality Control Division '
DATE SIGNED: MA,Y Z1,2002
EFFECTIVE DATE OF PERNIIT: JULY 1,2002
� � .
TABLE OF CONTENTS
PARTI
A. COVERAGE UNDER TAIS PERMIT........................................................................................................................................ 3
1. Authority to Discharge............................................................................................................................................. 3
a) Applicable Secrions............................................................••••••........................•••.................................... 3
2. Industries Covered Under this Permit......................................................••••••••......................................................... 3
a) Definitions:.............................................................................................................................................. 3
b) Types of Activities Covered by this Pernut: ........................................................................................... 3
3. Pemut Coverage Without Application................................................................••••-•••............................................. 3
a) Applicable Sections...........................................••••••............................••••••.............................................. 3
b) Local Agency Authority.......................................................................................................................... 3
c) Permit Coverage Ternunation.:............................................................................................................... 4
d) Compliance with Qualifying Local Program........................................................................................... 4
e) Full Pemut Applicability......................................................................................................................... 4
4. Applicarion,Due Dates..................................••••••••.....................•••••.................................................•••••.................. 4
a) Application Due Dates............................................................................................................................ 4
b) Summary of Applicarion..........................................................•••............................................................ 4
5. Pemut Certification Procedures.................................................................•••............................................................ 4
a) Request for Addidonal Information.................................................••••••................................................. 5
b) Automaric Coverage................................................................................................................................ 5
c) Individual Permit Required..................................................................................................................... 5
d) Temporary Coverage............................................................................................................................... 5
e) General vs.Individual Pemut Coverage.................................................................................................. 5
� Local Agency Authority...........................................................................................................�............. 5
6. Inactivation Notice................................................................................................................................................... 5
7. Transfer of Pernvt..................................................................................................................................................... 5
8. Pemut Expiration Date............................................................................................................................................. 6
9. Individual Pernut Criteria......................................................................................................................................... 6
B. CONTENTS OF THE STORMWATER MANAGEMENT PLAN............................................................................................. 6
1. Site Description........................................................................................................................................................ 7
2. Site Map................................................................................................................................................................... 7
3. BMPs for Stormwater Pollurion Prevention............................................................................................................. 7
a) Erosion and Sediment Contiols................................................................................................................ 7
b) Materials Handling and Spill Prevention................................................................................................. 8
4. Final Stabilization and Longterm Stormwater Management.................................................................................... 8
5. Other Controls.......................................................................................................................................................... 8
6. Inspection and Maintenance..................................................................................................................................... 8
C. TERMS AND CONDITIONS..............................•••-•-•.............................................................•••••••••.......................................... 8
1. General Limitations....................................................................................:............................................................. 8
2. Prohibition of Non-stormwater Discharges.............................................................................................................. 9
3. Releases in Excess of Reportable Quantiries............................................................................................................ 9
4. Stormwater Management Plans................................................................................................................................ 9
a) Signatory Requirements.......................................................................................................................... 9
b) SWMP Review/Changes......................................................................................................................... 9
5. Inspections................................................................................................................................................................ 9
a) Active Sites.............................................................................................................................................. 9
b) Completed Sites...................................................................................................................................... 10
c) Winter Conditions..................................................................:............................................................... 10
6. Reporting................................................................................................................................................................. 10
7. SWMP Submittal Upon Request...............................................
.............................................................................. 1
D. ADDITIONAL DEFINITIONS.................................................................................................................................................. 10
-2a-
� t
TABLE OF CONTENTS(cont.)
E. GENERAL REQUIREMENTS.................................................................................................................................................. 11
1. Signatory Requirements.......................................................................................................................................... 11
2. Retention of Records............................................................................................................................................... 12
PART II
A. MANAGEMENT REQUIREMENTS........................................................................................................................................ 12
1. Change in Discharge........................................................................................................•••..................................... 12
2. Special Norifications-Defmitions.......................................................................................................................... 12
3. Noncompliance Norification.................................................................................................................................... 13
4. Submission of Incorrect or Incomplete Information................................................................................................ 13
5. Bypass..................................................................................................................................................................... 13
' 6. Upsets ..................................................................................................................................................................... 13
7. Removed Substances........................••••-•...................•••.............-••........................................................................... 14
8. Min;mi�arion of Adverse Impact............................................................................................................................. 14
9. Reduction,Loss,or Failure of Treatment Facility................................................................................................... 14
10. Proper Operation and Maintenance......................................................................................................................... 14
B. RESPONSIBII.,ITIES.......................................................................................................•••-•............•-•-..................................... 14
1. Inspecrions and Right to Entry..............................................•••............................................................................... 14
2. Duty to Provide Informarion.................................................................................................................................... 15
3. Transfer of Ownership or Control........................................................................................................................... 15
4. Modification,Suspension,or Revocation of Permit By Division............................................................................ 15
5. Permit Violations........................................................................................................................•-•••........................ 16
6. Legal Responsibilities............................................................................................................................................. 16
7. Severability.............................................................................................................................................................. 16
8. RenewalApplication........................................................................................................................•••.................... 17
9. Confidenriality......................................................................................................................................................... 17
10. Fees.......................................................................................................................................................................... 17
11. Requiring an Individual CDPS Permit.................................................................................................................... 17
-2b-
► '
PARTI
Page 3
Permit No.COR-030000
PARTI
A. COVERAGE UNDER THIS PERMIT
i. Authoritv to Discharge
Under this permit,construcrion acrivities,including clearing,grading,and excavation,are granted authorizarion to
discharge stormwater associated with construcLion activiries into waters of the state of Colorado.
a. Applicable Sections: This permit is made up of several parts,not ail of which apply to all permittees. The
permittee will be responsible for determining and then complying with the applicable sections,depending upon
whether or not a Qualifying Local Program covers the site. For sites not covered by a Qualifying Local Program,
all Parts of the permit except Part I.A3 apply.
2. Industries Covered Under this Permit
a) Definitions:
1) Stormwater:Stormwater is precipitation-induced surface runoff.
2) Construcrion acrivity: Construction activity includes clearing,grading and excavarion activities.
Construction does not include routine maintenance performed by public agencies,or their agents to maintain
original line and grade,hydraulic capacity,or original purpose of the facility.
3) Small construcrion activity: Stormwater discharge associated with small construction activity means the
dischazge of stormwater from cons�uction activities that result in land disturbance of equal to or greater than
one acre and less than five acres.Small cons�ucrion activity also includes the disturbance of less than one
acre of total]and area that is part of a larger common plan of development or sale,if the larger common plan
will ultimately disturb equal to or greater than one and less than five acres.
4) Qualifyin�Local ProQram: This pemut includes conditions that incorporate quatifying local erosion and
sediment con�ol program(Qualifying Local Program)requirements by reference. A Qualifying Local
Program is a municipal stormwater program for stormwater discharges associated with small conshuction
activiry that has been formally approved by the Division.
5) Other Definitions: Definitions of additional terms can be found in Part I.D.of this pemvt.
b) Ty�pes of Activities Covered by this Permit: This permit may authorize all new and existing discharges of
stormwater associated with construction activity. This includes stormwater discharges from areas that are
dedicated to producing earthen materials,such as soils,sand and gravel,for use at a single construction site. This
permit also includes stormwater discharges from dedicated asphalt batch plants and dedicated concrete batch
plants. 1'his permit does not authorize the discharge of mine water or process water from such areas.
3. Permit Coverage Without Apptication—for small construction activities under a Qualifying Local Program onlv
If a construction site is within the jurisdiction of a Qualifying Local Program,the operator of the construction activity is
authorized to discharge stormwater associated with small construcrion activity under this general pernut without the
submittal of an application to the Division.
a) Applicable Sections: For sites covered by a Qualifying Local Program,only Parts 1.A.1, 1.A.2, I.A.3,I.C.1,
I.C.2,I.C3,I.D and Part II of this pernvt,with the exception of Parts II.A.1,II.B3,II.B.8,and II.B 10,apply.
b) Local Agency Authority: This permit does not pre-empt or supersede the authority of local agencies to prohibit,
restrict,or control discharges of stormwater to storm drain systems or other water courses within their jurisdicrion.
� r.
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Page 4
Permit No.COR-030000
A. COVERAGE LJNDER THIS PERMIT(cont.)
c) Permit Coverage Termination: When a site has been fmally stabiIized,coverage under this permit is
automatically terminated.
d) Compliance with Qualifying Local Program: A construction site operator that has authorizarion to discharge
under this permit under Part I.A.3 shall comply with the requirements of the Qualifying Local Program with
jurisdiction over the site.
e) Full Permit Applicability: The Division may require any owner or operator within the jurisdiction of a
Qualifying Local Program covered under this permit to apply for and obtain coverage under the full requirements
of this permit.The owner or operator must be notified in writing that an application for full coverage is required.
When a pernrit certification under this permit is issued to an owner or operator that would otherwise be covered
under Part I.A3 of this permit,the full requirements of this pernut replace the requirements as per Part I.A3 of
this permit,upon the effecrive date of the permit certification. A site brought under the full requirements of this
permit must still comply with local stormwater management requirements,policies or guidelines as required by
Part I.C.l.h of this Pernut.
4. Application,Due Dates
a} Application Due Dates:At least ten days prior to the commencement of construction activities,the operator of
the construction acrivity shall submit an application form as provided by the Division,with a certification that the
Stormwater Management Plan(SWMP)is complete.
One original completed discharge pemut applicarion shall be submitted,by mail or hand delivery,to:
Colorado Department of Public Health and Environment
Water Quality Control Division
WQCD-P-B2
4300 Cherry Creek Drive South
Denver,Colorado 80246-1530
b) Summary of Application: The application requires,at a m;nimum,the following:
1) The operator's name,address,telephone number,tax payer identification number(or employer identification
number), and the status as Federal,State,private,public or other entity;
2) Name,county and location of the construction site,including the laritude and longitude to the nearest 15
seconds of the approximate center of the consuuction activity;
3) A brief descriprion of the nature of the consti-uction activity;
4) The anticipated starting date of the project and the anticipated schedule of completion
5) Estimates of the total area of the site,the area of the site that is expected to be disturbed,and the total area of
the larger common plan of development or sale to undergo disturbance;
6) The name of the receiving water(s},or the municipal separate storm sewer system and the ultimate(i.e.,
named)receiving water(s);
7) Certification that the SWMP for the construction site is complete(see Part I.B.below);and
8) The signature of the applicant signed in accordance with Part I.E.1 of this permit.
5. Permit Certification Procedures
If the general permit is applicable to the applicant's operation,then a certificarion will be developed and the applicant
will be authorized to discharge stormwacer under this general permit.
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Page 5
Pemut No.COR-030000
A. COVER.AGE LJNDER THIS PERMIT(cont.)
a) Request for Additionat Information: The Division shall have up to ten days after receipt of the above
informarion to request additional data and/or deny the authorization for any particular discharge. Upon receipt of
additional information,the Division shall have an additional ten days to issue or deny authorization for the
particular discharge. (Notificarion of denial shall be by letter,in cases where coverage under an altemate general
pernut or an individual permit is required,instead of coverage under this permit.)
b) Automatic Coverage: If the applicant does not receive a request for addirional information or a not�cation of
denial from the Division dated within ten days of receipt of the applicarion by the Division,authorizarion to
discharge in accordance with the condirions of this pernut shall be deemed granted.
c) Individual Permit Required: If,after evaluation of the application(or additional informarion,such as the
SWMP),it is found that this general permit is not applicable to the operarion,then the application will be
processed as one for an individual permit. The applicant will be notified of the Division's decision to deny
certificarion under this general permit. For an individual permit,additional information may be requested,and 180
days will be required to process the application and issue the pemut.
d) Temporary Coverage: Notwithstanding Parts I.A.S.a-c,above,the Division reserves the right to temporarily
cover stormwater discharge from construction activity under general permits,even though individual permit
coverage may be more appropriate.
Certification of these activities under a general permit dces not in any way infringe on the Division's right to
revoke that coverage and issue an individual permit or amend an existing individual pernvt.
e) General vs.Individual Permit Coverage: Any owner or operator authorized by this permit may request to be
excluded from the coverage of this permit by applying for an individual CDPS pernut. The owner or operator
shall submit an individual application,witb reasons supporting the request,to the Division at least 180 days prior
to any discharge.
fl Local Agency Authority: This perniit does not pre-empt or supersede the authority of local agencies to prohibit,
restrict,or control discharges of stormwater to storm drain systems or othez water courses within their jurisdicrion.
6. Inactivation Notice
When a site has been finally stabilized in accordance with the SWMP,the operator of the facility must submit an
Inactivation Notice that is signed in accordance with Part I.E.1.of this pernut. The Inacrivation Notice form is available
from the Division and includes:
a) Pernut certificarion number;
b) The pemuttee's name,address,telephone number;
c) Name, locarion,and county for the construction site for which the application is being submitted.
d) Certification that the site has been finally stabilized,and a description of the final stabilization method(s).
An inactivarion form may not be required for small construction activities if application was made for coverage with a
completion date less than 12 months from the start of construction activity. In such cases,permit certification may be
authorized for a predetermined period from 3 to 12 months. The permit certificarion will include the automatic
expiration date for permit coverage. If permit coverage beyond that date is needed(i.e.,the site has not been finally
stabilized),the permittee must submit an extension request form to the Division at least 10 days prior to the expiration
date.
7. Transter of Permit
When responsibility for stormwater discharges at a construction site changes from one individual to another,the
permittee shall submit a completed Notice of Transfer and Acceptance of Terms of a Construcrion General Stonnwater
Discharge Pemvt Certification that is signed in accordance with Part I.E.I.of this pernut. The Norice of Transfer form is
available from the Division and includes:
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PARTI
Page 6
Pernut No.COR-030000
A. COVERAGE iJNDER THIS PERMIT(cont_)
a) Pemrit certification number.
b) Name,location,and county for the construcrion site for which the application is being submitted.
c) The current permittee's name,address,telephone number and the status as Federal,State,private,public or other
entity.
d) The new permittee's name,address and telephone number and the status as Federal,State,private,public or other
enrity.
e) Certification that the new permittee has reviewed the pertnit and SWMP and accepu responsibility,coverage and
liability for the pemut.
fl Effective date of transfer.
If the new responsible party wiil not complete the transfer form,the pernut may be inactivated if the permittee has no
legal responsibility,through ownership or contract,for the cons�uction activities at the site. In this case,the new
operator would be required to obtain permit coverage separately.
8. Permit Expiration Date
Authorization to discharge under this general perrnit shall expire on June 30,2007. The Division must evaluate and
reissue this general permit at least once every five yeus and must recertify the applicant's authority to discharge under
the general permit at such time. Any permittee desiring continued coverage under the general permit must reapply by
March 31,2007. The Division will determine if the applicant may continue to operate under the terms of the general
permit. An individual permit will be required for any facility not reauthorized to discharge under the reissued general
pernut.
9. Individual Permit Criteria
Aside from the activity type,the Division may use other criteria in evaluaring whether an individual pernut is required
instead of ttus general pemvt. This infoimation may come from the application,SWMP,or addirional inforination as
requested by the Division,and includes,but is not limited to,the following:
a) the quality of the receiving waters(i.e.,the presence of downstream drinking water intakes or a high quality
fishery,or for preservation of high quality water);
b) the size of the construction site;
c) evidence of noncompliance under a previous permit for the operation;
d) the use of chemicals within the stormwater system.
In addition,an individual permit may be required when the Division has shown or has reason to suspect that the
stormwater discharge may con�bute to a violation of a water quality standard.
B. CONTENTS OF THE STORMWATER MANAGEMENT PLAN
The SWMP shall be prepared in accordance with good engineering,hydrologic and pollution control practices. (The SWMP
need not be prepared by a registered engineer.) The main objective of the plan shall be to identify Best Management Practices
(BMPs)which when implemented will meet the terms and conditions of this permit(see Part I.C.,below).
The plan shall identify potential sources of pollution(including sediment)which may reasonably be expected to affect the
quality of stormwater discharges associated with construction activiry from the facility. In addirion,the plan shall describe and
ensure the implementation of BMPs which wiil be used to reduce the pollutants in stormwater discharges associated with
construction activity. Construction operations must implement the provisions of the SWMP required under this part as
a condition of this permit.
The SWMP shall include the following items,at a minimum:
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PARTI
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Permit No.COR-030000
B. CONTENTS OF THE STORMWATER MANAGEMENT PLAN(cont.)
1. Site Descriation
Each plan shall provide a descriprion of the following:
a) A description of the construction activity.
b) The proposed sequence for major acrivities.
c) Estimates of the total area of the site,and the area of the site that is expected to undergo clearing,excavation or
grading.
d) An estimate of the runoff coefficient of the site before and after construction acriviries aze completed and any
existing data describing the soil,soil erosion potential or the quality of any discharge from the site.
e) A description of the existing vegetarion at the site and an estimate of the percent vegetative ground cover.
� The location and description of any other potential poilution sources,such as vehicle fueling,storage of fertilizers
or chemicals,etc.
g) The location and description of any anticipated non-stormwater components of the discharge,such as springs and
landscape irrigarion rehun flow.
h) The name of the receiving water(s)and the size,type and location of any outfall or,if the discharge is to a
municipal separate storm sewer,the name of that system,the location of the storm sewer dischazge,and the
ullimate receiving water(s).
2. Site Map
Each plan shall provide a generalized site map or maps which indicate:
- construcrion site boundaries
- all areas of soil disturbance
- areas of cut and fill
- areas used for storage of building materials,soils or wastes
- location of any dedicated asphalt or concrete batch plants
- location of major erosion control facilities or structures
- springs,streams,wetlands and other surface waters
- boundaries of 100-year flood plains,if detemuned.
3. BMPs tor Stormwater Pollution Prevention
The plan shall include a narrarive description of appropriate controls and measures that will be implemented before and
during construcrion activities at the facility.
'The plan shall clearly describe the relarionship between the phases of construcrion and the impiementation and
maintenance of controls and measures. For example,which con�ols will be implemented during each of the following
stages of consUuction:clearing and grubbing necessary for perimeter controls,initiarion of perimeter controls,remaining
clearing and grubbing,road grading,storm drain installation,final grading,stabilization,and removal of control
measures.
T'he description of controls shall address the following minimum components:
a) Erosion and Sediment Controls.
I) Structural Pracrices. A description of structural site management pracrices which will minimize erosion and
sediment transport. Pracrices may include,but are not limited to:straw bales,silt fences,earth dikes,
drainage swales,sediment traps,subsurface drains,pipe slope drains,uilet protection,outiet protecrion,
gabions,and temporary or permanent sediment basins.
2) Non-Structural Pracrices. A description of interim and permanent stabilization practices,including site-
specific scheduling of the implementarion of the practices. Site plans should ensure that existing vegetation
is preserved where possible and that disturbed areas are stabilized. Non-structuzal practices may include,but
are not limited to:temporary seeding,permanent seeding,mulching,geotextiles,sod stabilization,vegetarive
buffer strips,protection of trees,and preservation of mature vegetation.
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PARTI
Page 8
Permit No.COR-030000
B. CONTENTS OF T'HE STORMWATER MANAGEMENT PLAN(cont.}
b) Materials Handlin�and Spill Prevenrion.
T'he SWMP shall identify any procedures or significant materials(see definitions at Part I.D.)handled at the site
that could contribute pollutanu to runoff. These could include sources such as:exposed storage of building
materials,fertilizers or chemicals;waste piles;and equipment maintenance or fueling procedures. Areas or
procedures where potenrial spills can occur shall have spill prevention and response procedures idenrified.
Measures to control stormwater pollution&om dedicated concrete batch plants or dedicated asphalt batch plants
covered by this certification,must be identified in the SWMP•
4. Final Stabilization and Longterm Stormwater Mana�ement
The plan shall include a description of the measures used to achieve final stabilizarion and measures to con�ol pollutants
in stormwater dischazges that will occur after construction operations have been completed.
Final stabilization is reached when all soil disturbing activities at the site have been completed,and uniform vegetative
cover has been established with a density of at least 70 percent of pre-disteubance levels,or equivalent permanent,
physical erosion reduciion methods have been employed.
For puiposes of this permit,establishment of a vegetative cover capable of providing erosion control equivalent to pre-
existing condirions at the site can be considered final stabilization. The pemvttee will be responsible for providing to the
Division the documentation to make this comparison. The Division may,after consultation with the permittee and upon
good cause,amend the fmal stabilization criteria for specific operations.
5. Other Controls
The plan shall include a description of other measures to control pollutants in stormwater discharges,including plans for
waste disposal and limiring off-site soil tracking.
6. Inspection and Maintenance
The plan shall include a description of procedures to inspect and maintain in good and effective operating condirion the
vegetation,erosion and sediment control measures and other protective measures identified in the SWMP.
C. TERMS AND CONDITIONS
1. General Limitations
The following limitations shall apply to all discharges covered by this permit:
a) Stormwater discharges from construcrion acrivities shall not cause or threaten to cause pollution,contaminarion or
degradarion of State waters.
b) Concrete wash water shall not be discharged to state waters or to storm sewer systems.
c) Bulk storage structures for petroleurn products and other chemicals shall have adequate protection so as to contain
all spills and prevent any spilled material from entering State waters.
d) No chemicals are to be added to the discharge unless pemussion for the use of a specific chemical is granted by
the Division. In granring the use of such chemicals,special conditions and monitoring may be addressed by
separate letter.
e) The Division reserves the right to require sampling and testing,on a case-by-case basis,in the event that there is
reason to suspect that compliance with the SWMP is a problem,or to measure the effecriveness of the BMPs in
removing pollutants in the effluent. Such monitoring may include Whole Effluent Toxicity testing.
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PARTI
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Pemut No.COR-030000
C. TERMS AND CONDITIONS(cont.}
� All wastes composed of building materials must be removed from the site for disposal in licensed disposal
facilities. No building material wastes or unused building materials shall be buried,dumped,or discharged at the
site.
g) Off-site vehicle tracking of sediments shali be minimized.
h) All dischargers must comply with the lawful requirements of municipalities,counries,drainage districts and other
local agencies regarding any discharges of stormwater to storm drain systems or other water courses under theu
jurisdicrion,including applicable requirements in municipal stormwater management programs developed to
comply with CDPS permits. Dischazgers must compiy with local stormwater management requirements,policies
or guidelines including erosion and sediment con�ol.
2. Prohibition of Non-Stormwater DischarQes
a) Except as provided in paragraph b,below,all discharges covered by this permit shall be composed entirely of
stormwater. Discharges of material other than stormwater must be addressed in a separate CDPS permit issued
for that discharge.
b) Discharges from the following sources that are combined with stormwater discharges associated with constiucrion
activity may be authorized by this perniit,provided that the non-stormwater component of the discharge is
identified in the SWMP(see Part I.B.I.g of this permit):
-fue fighting activities -landscape irrigation return flow
-springs
3. Releases in Excess of Reportable Quantities
This permit does not relieve the permittee of the reporting requirements of 40 CFR 110,40 CFR 117 or 40 CFR 302.
Any discharge of hazardous material must be handled in accordance with the Division's Notificarion Requirements(see
Part II.A3 of the permit).
4. Stormwater Management Plans
Prior to commencement of construcrion,the stormwater management plan(SWMP)shall be implemented for the
construcrion site covered by this permit.
a) Signatory Requirements: The plan shall be signed in accordance with Part I.E.1.,with one retained on site.
b) SWMP Review/Changes: The permittee shall amend the plan whenever there is a significant change in design,
construction,operation,or maintenance,which has a significant effect on the potenrial for the discharge of
pollutants to the waters of the State,or if the SWMP proves to be ineffective in achieving the general objecrives of
controlling pollutants in stormwater dischazges associated with construction activity.
5. Inspections
a) Active Sites-For sites where construction has not been completed,the pernuttee shall make a thorough inspection
of their stormwater management system at least every 14 days and after any precipitarion or snowmelt event that
causes surface erosion.
1) The conshuction site perimeter,disturbed areas and areas used for material storage that are exposed to
precipitation shall be inspected for evidence of,or the potential for,pollutants entering the drainage system.
Erosion and sediment control measures identified in the SWMP shall be observed to ensure that they are
operating correctly.
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PARTI
Page 10
Permit No.COR-030000
C. TERMS AND CONDITIONS(cont.)
2) Based on the results of the inspecrion,the description of potential pollutant sources,and the pollution
prevention and control measures that are identified in the SWMP shall be revised and modified as appropriate
as soon as practicable after such inspection. Modificarions to control measures shall be implemented in a
rimely manner,but in no case more than 7 calendar days after the inspecrion.
3) The operator shall keep a record of inspections. Any incidence of non-compliance,such as uncontrolled
releases of mud or muddy water or measurable quanrities of sediment found off the site,shall be recorded
with a brief explanation as to the measures taken to prevent future violations,as well as any measure taken to
clean up the sediment that has left the site. After adequate measures have been taken to correct any problems,
or where a report does not identify any incidents of non-compliance,the report shall contain a si�ed
certificabon indicating the site is in compliance. This record shall be made available to the Division upon
request.
b) Completed Sites-For sites where all construction activiries are co�leted but final stabilization has not been
achieved due to a vegetative cover that has been p}anted but has not become established,the permittee shall make
a thorough inspection of their stormwater management system at least once every month. When site conditions
make this schedule impractical,permittees may petition the Division to grant an altemate inspection schedule.
These inspections must be conducted in accordance with paragraphs 1),2),and 3)of Part I.C.S.a.above.
c) Winter Conditions-Inspections,as described above in a)and b),will not be required at sites where snow cover
exists over the entire site for an extended period,and melring conditions do not exist. This exemption is applicable
only during the period where melting conditions do not exist. Regular inspecrions,as described above,are
required at all other times.
6. Reporting
No regular reporting requirements are included in this permit;however,the Division reserves the right to request that a �
copy of the inspection reports be submitted.
7. SWMP Submittal Uaon Reuuest
Upon request,the permittee shall submit a copy of the SWMP to the Division,EPA or any local agency in charge of
approving sediment and erosion plans,grading plans or stormwater management plans.
All SWMPs required under this permit are considered reports that shall be available to the public under Section 308(b)of
the CWA. The owner or operator of a facility with stormwater discharges covered by this permit sba11 make plans
available to members of the public upon request,unless the SWMP has been submitted to the Division. However,the
permittee may claim any portion of a SWMP as confidential in accordance with 40 CFR Part 2.
D. ADDITIONAL DEFII�IITIONS
For the purposes of this permit:
1. BAT and BCT: (Best Available Technology and Best Conventional Technology)Technology based federal water
quality requirements covered under 40 CFR subchapter N.
2. Best management practices(BMPs): schedules of activities,protubitions of practices,maintenance procedures,and
other management pracrices to prevent or reduce the pollution of waters of the State. BMPs also include�eahnent
requirements,operating procedures,and practices to control site tunoff,spillage or leaks,waste disposal,or drainage
from material storage.
3. Dedicated asphalt plants and concrete plants: portable asphalt planu and concrete plants that are located on or
adjacent to a construction site and that provide materials only to that specific construction site.
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PARTI
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Pemut No.COR-030000
D. ADDITIONAL DEFITTITIONS(cont.)
4. Final stabilization: when ali soil disturbing acrivities at the site have been completed,and uniform vegetative cover has
been established with a density of at least 70 percent of pre-disturbance levels,or equivalent permanent,physical erosion
reducrion methods have been employed. For purposes of this permit,establishment of a vegetative cover capable of
providing erosion control equivalent to pre-exisring conditions at the site will be considered final stabilization.
5. Municipal storm sewer system:a conveyance or system of conveyances(including:roads with drainage systems,
municipal streets,catch basins,cwbs,gutters,ditches,man-made channels,or storm drains},owned or operated by a
State,ciry,town,county,district,or other public body(created by state law),having jurisdiction over disposal of sewage,
industrial waste,stormwater,or other wastes;designed or used for collecting or conveying stormwater.
6. Operator:the individual who has day-to-day supervision and control of activities occurring at the construction site. This
can be the owner,the developer,the general contractor or the agent of one of these parties,in some circumstances. It is
anticipated that at different phases of a cons�ucrion project,different types of parties may satisfy the definition of
'operator'and that the permit may be transferred as the roles change.
7. Outfall: a point source at the point where stormwater]eaves the construction site and discharges to a receiving water or
a storrnwater collection system.
8. Part of a larger common plan of development or sale:a contiguous area where multiple separate and distinct
construcrion acrivities may be taking place at different times on different schedules under one plan.
9. Point source:any discemible,confined and discrete conveyance from which pollutants are or may be discharged. Point
source discharges of stormwater result from structures which increase the imperviousness of the ground which acts to
collect runoff,with runoff being conveyed along the resulring drainage or grading pattern.
10. Process water: any water which during manufacturing or processing,comes into contact with or results from the
production of any raw material,intermediate product,finished product,by product or waste product. 2his definition
includes mine drainage.
I 1. Receiving Water:any water of the State of Colorado into which stormwater related to construction activiries discharges.
12. Runoff coefficient:the fraction of total rainfall that will appear as nuioff.
13. Significant Materials include but are not limited to:raw materials;fuels;materials such as metallic products;hazardous
substances designated under section 101(14)of CERCLA;any chemical the facility is required to report pursuant to
section 313 of title III of SARA; fertilizers;pesticides;and waste products such as ashes,slag and sludge that have the
potential to be released with stormwater discharge.
14. Stormwater:precipitation-induced surface runoff.
15. Waters of the state of Colorado:any and all surface waters that are contained in or flow in or throngh the state of
Colorado. This defmition includes all water courses,even if they are usually dry.
E. GENERAL REQUIREMENTS
1. Si�natorv Requirements
a) All reports required for submittal shall be signed and certified for accuracy by the permittee in accordance with the
following criteria:
1) In the case of corporations,by a principal executive officer of at least the level of vice-president or his or her
duly authorized representative,if such representarive is responsible for the overall operation of the facility
from which the discharge described in the form originates;
2) In the case of a par�ership,by a general parmer;
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Page 12 ,
Permit No. COR-030000
E_ GENERAL REQUIREMENTS(cont.)
3) In the case of a sole proprietorship,by the proprietor;
4) In the case of a municipal,state,or other public facility,by either a principal executive officer,ranking
elected official,or other duly authorized employee.
b) Changes to authorization. If an authorizatior �der paragraph a)of this section is no longer accurate because a
different individual or position has responsibil�:; ior the overall operation of the faciliry,a new authorizarion
sarisfying the requirements of paragraph a)of this section must be submitted to the Division,prior to or together
with any reports,information,or applications to be signed by an authorized representarive.
c) Certification. Any person signing a document under paragraph a)of this section shall make the following
certificarion:
"I certify under penalty of law that this document and all attachments were prepared under my d'uection or
supervision in accordance with a system designed to assure that qualified personnel properly gather and
evaluate the information submitted. Based on my inquiry of the person or persons who manage the system,
or those persons d'uectiy responsible for gathering the information,the information submitted is,to the best of
my lrnowledge and belief,true,accurate,and complete. I am aware that there are significant penalties for
submitting false information,including the possibility of fine and irnprisonment for knowing violations."
2. Retention of Records
a) The permittee shall retain copies of the SWMP and all reports required by this permit and records of al]data used
to complete the application to be covered by this permit,for a period of at least three years from the date that the
site is finally stabilized.
b) The permittee shall retain a copy of the SWMP required by this pemut at the construction site from the date of
project initiation to the date of fmal stabilizarion,unless another locarion,specified by the permittee,is approved
by the Division.
PART II
A. MANAGEMENT REQUIREMENTS
l. ChanQe in Discharge
The permittee shall inform the Division(Permits Unit)in writing of any intent to significanfly change activiries from
those indicated in the perntit appiicarion(this does not include changes to the SWMP). Upon request,the pemuttee shall
furnish the Division with such plans and specifications which the Division deems reasonably necessary to evaluate the
effect on the discharge and receiving stream. The SWMP shall be updated within 30 days of the changes.
T'he permittee shall submit this notice to the Division wiihin two weeks after maldng a determination to perform the type
of activity referred to in the preceding pazagraph.
Any discharge to the waters of the State from a point source other than specifically authorized by this pernut is
prohibited.
2. S�ecial Notifications-Definitions
a) Spill: An unintenrional release of solid or liquid material which may cause pollution of state waters.
b) Upset: An exceprional incident in which there is unintentional and temporary noncompliance with permit effluent
limitations because of factors beyond the reasonable con�ol of the pernvttee. An upset does not include
noncompliance to the extent caused by operational error,improperly designed treatment faciliries,inadequate
�eatment facilities,lack of preventarive maintenance,or careless or improper operation.
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PART II
Page 13
Permit No.COR-030000
A. MANAGEMENT REQUI1tEMENTS(cont.)
3. Noncomnliance Notification
a) lf,for any reason,the pernnttee does not comply with or will be unable to comply with any pemlit limitarions,
standards or permit requirements specified in this pemut,the permittee shall,at a minimum,provide the Water
Quality Control Division and EPA with the following information:
1) A description of the dischazge and cause of noncompliance;
2) The period of noncompliance,including exact dates and times and/or the anticipated time when the discharge
will return to compliance;and
3) Steps being taken to reduce,eliminate,and prevent recurrence of the noncomplying dischazge.
b) "I'he permittee shall report the following instances of noncompliance orall�within twenty-four(24)hours from the
time the pemuttee becomes aware of the noncompliance,and shall mail to the Division a wntten report within five
5 da s after becoming aware of the noncompliance(unless otherwise specified by the Division):
1) Any instance of noncompliance which may endanger health or the environment;
2) Any spill or discharge of oil or other substance which may cause pollution of the waters of the state.
c) The pernuttee shall report all other instances of non-compliance to the Division within 30 days. The reports shall
contain the information listed in sub-paragraph(a)of this section.
4. Submission of Incorrect or Incomnlete Information
Where the permittee failed to submit any relevant facts in a pemvt applicarion,or submitted incorrect information in a
permit application or report to the Division,the permittee shall prompdy submit the relevant application information
which was not submitted or any additional information needed to correct any erroneous information previously
submitted.
S. Bypass
The bypass of treatment facilities is generally prohibited.
6. Upsets
a) Effect of an Upset
An upset constitutes an affirmative defense to an action brought for noncompliance with permit lunitations and
requirements if the requirements of pazagraph b of this section are met. (No detemunation made during
administrative review of claims that noncompliance was caused by upset,and before an acrion for noncompliance,
is final administrarive acrion subject to judicial review.) -
b) Conditions Necessarv for a Demonstration of Upset
A percnittee who wishes to establish the affirmative defense of upset shall demonstrate through properly signed
contemporaneous operating logs,or other relevant evidence that:
1) An upset occurred and that the permittee can identify the specific cause(s)of the upset;
2) The pernutted facility was at the rime being properly operated;
3) The pertnittee submitted notice of the upset as required in Part II.A3. of this pernrit(24-hour norice);and
i
PART II
Page 14
Pernrit No.COR-030000
A. MANAGEMENT REQUIREMENTS(cont.)
4) The permittee complied with any remedial measures required under Secrion 122.7(d)of the federal
regularions.
c) Burden of Proof
In any enforcement proceeding the pemvttee seeking to establish the occurrence of an upset has the burden of
proof.
7. Removed Substances
Solids,sludges,or other pollutants removed in the course of treatment or contro]of wastewaters shall be properly
disposed of in a manner such as to prevent any pollutant from such materials from entering waters of the State.
8. Minimization of Adverse Imaact
The pernuttee shall take all reasonable steps to minimize any adverse impact to waters of the State resulting from
noncompliance with any effluent limitarions specified in this pemut,including such accelerated oz additional monitoring
as necessary to determine the nature and impact of the noncomplying discharge.
9. Reduction Loss or Failure of Treatment Facilitv
The permittee has the duty to halt or reduce any activity if necessary to maintain compliance with the pemut
require�nts. Upon reduction,loss,or failure of the treatrnent facility,the pernrittee shall,to the extent necessary to
maintain compliance with iu permit,control production,or all discharges,or both until the facility is restored or an
altemative method of treatment is provided.
It shall not be a defense for a permittee in an enforcement action that it would be necessary to halt or reduce the
permitted acrivity in order to maintain compliance with the conditions of this pernvt.
10. Proper Operation and Maintenance
The pernrittee shall at all times properly operate and maintain all faciliries and systems of treatment and control(and
related appurtenances)which are installed or used by the pemuttee to achieve compliance with ihe conditions of this
pernut. Proper operarion and maintenance includes effective performance,adequate funding,adequate operator staffmg
and training, and adequate laboratory and process controls,including appropriate quality assurance procedures. This
provision requires the operarion of back-up or auxiliary facilities or similar systems only when necessary to achieve
compliance with the conditions of the permit.
B. RESPONSIBILITIES
1. Insuections and Rieht to Entry
The permittee shall allow the Director of the State Water Quality Control Division,the EPA Regional Administrator,
and/or theu authorized representative,upon the presentation of credenrials:
a) To enter upon the permittee's premises where a regulated facility or activity is located or in which any records are
required to be kept under the terms and condirions of this permit;
b) At reasonable times to have access to and copy any records required to be kept under the terms and conditions of
this permit and to inspect any monitoring equipment or monitoring method required in the permit;and
c) To enter upon the permittee's premises to investigate,within reason,any actual,suspected,or potenrial source of
water pollution,or any violation of the Colorado Water Quality Control Act. The invesrigarion may include,but is
not limited to,the following: sampling of any discharge and/or process waters,the taking of photographs,
interviewing permittee staff on alleged violations,and access to any and all faciliries or areas��thin the permittee's
premises that may have any effect on the discharge,permit, or alleged violarion.
. PART II
Page 15
� Permit No.COR-030000
B. RESPONSIBII.ITIES(cont.)
2. Dutv to Provide Information
The permittee shall fumish to the Division,within a reasonable time,any information which the Division may request to
determine whether cause exists for modifying,revolang and reissuing,or inactivating coverage under this permit,or to
determine compliance with this permit. The pemuttee shall also furnish to the Division,upon request,copies of records
required to be kept by this permit.
3. Transfer of Ownershia or Control
Certificarion under this permit may be transferred to a new permittee if:
a) The current permittee norifies the Division in writing when the transfer is desired;and
b) The notice includes a written agreement between the existing and new pemvttees containing a specific date for
transfer of permit responsibility,coverage and liability between them;and
c) The current permittee has met all fee requirements of the State Discharge Permit System Regulations,Secrion
61.15.
4. Modification Susaension or Revocation of Permit Bv Division
Ali pernut modificarion,inactivarion or revocation and reissuance actions shall be subject to the requirements of the State
Discharge Perrrut System Regulations,Sections 61.5(2),61.5(3),61.7 and 61.15,5 C.C.R. 1002-61,except for minor
modifications.
a) This permit,and certification under this permit,may be modified,suspended,or revoked in whole or in part during
iu term for reasons determined by the Division including,but not limited to,the following:
1) Violation of any terms or conditions of the pernut;
2) Obtaining a pemut by misrepresentation or failing to disclose any fact which is material to the granring or
denial of a pertnit or to the establishment of terms or conditions of the permit;
3) Materially false or inaccurate statements or information in the application for the pernut;
4) Promulgation of toxic effluent standards or prolubitions(including any schedule of compliance specified in
such effluent standard or protubition)which are estabiished under Secrion 307 of the Clean Water Act,where
such a toxic pollutant is present in the discharge and such standard or prohibition is more stringent than any
limitation for such pollutant in this permit.
b) This pernut,or certification under this pemut,may be modified in whole or in part due to a change in any
condition that requires either a temporary or permanent reducrion or elimination of the pernutted discharge,such
as:
1) Promulgation of Water Quality Standards applicable to waters affected by the permitted discharge;or
2) Effluent limitations or other requirements applicable pursuant to the State Act or federal requirements;or
3) Control regularions promulgated;or
4) Data submitted pursuant to Part I.B or Part I.C.1 indicates a potential for violation of adopted Water Quality
Standards or stream classifications.
PART II
Page 16
Permit No.COR-030000
B. RESPONSIBILITIES(cont.)
c) This permit,or certification under this permit,may be modified in whole or in part to include new effluent
limitarions and other appropriate conditions where data submitted pursuant to Part I indicates that such effluent
limitations and condirions are necessary to ensure compliance with applicable water quality siandards and
protection of classified uses.
d) At the request of the pernvttee,the Division may modify or inactivate certificarion under this permit if the
following condirions are met:
1) In the case of inacrivation,the permittee notifies the Division of its intent to inacrivate the certification,and
certifies that the site has been finally stabilized;
2) In the case of inactivation,the permittee has ceased any and all discharges to state waters and demonstrates to
the Division there is no probability of further uncontrolled discharge(s)which may affect waters of the State.
3) 'I'he Division finds that the permittee has shown reasonable grounds consistent with the Federal and State
statutes and regulations for such modification,amendment or inactivation;
4) Fee requirements of Section 61.15 of State Discharge Pernvt System Regulations have been met;and
5) Requirements of public notice have been met.
For small construction sites covered by a Qualifying Local Program,coverage under this permit is automatically
terminated when a site has been finally stabilized.
5. Permit Violations
Failure to comply with any terms and/or conditions of this permit shall be a violation of this permit.
Dischargers of stormwater associated with industrial activity,as defined in the EPA Stormwater Regulation(40 CFR
122.26(b)(14),which do not obtain coverage under this or other Colorado general permits,or under an individual CDPS
pemvt regulating industrial stormwater,will be in violarion of the federal Clean Water Act and the Colorado Water
Quality Control Act,25-8-1O1. Failure to comply with CDPS permit requirements will also constitute a violation. Civil
penalties for such violations may be up to$10,000 per day,and criminal pollurion of state waters is punishable by fines
of up to$25,000 per day.
6. LeQal Responsibilities
The issuance of this permit does not convey any property or water rights in either real or personal property,or stream
flows,or any exclusive privileges,nor does it authorize any injury to private property or any invasion of personal rights,
nor any infringement of Federal,State or local laws or regulations.
Nottung in this pernut shall be construed to preclude the insriturion of any legal action or relieve the permittee from any
responsibilities,liabiliries,or penalties to which the permittee is or may be subject to under Section 311 (Oil and
Hazardous Substance Liability)of the Clean Water Act.
7. Severabilitv
The provisions of this pemvt are severable. If any provisions of this pernut,or the application of any provision of this
permit to any circumstance,is held invalid,the applicarion of such provision to other circumstances and the application
of the remainder of this permit shail not be affected.
,
PART II
Page 17
Permit No. COR-030000
B. RESPONSIBILITIES(cont.)
8. Renewal Anplication
If the pernuttee desires to continue to discharge,a permit renewal application shall be submitted at least ninety(90)days
before this permit expires. If the pemuttee anticipates that there will be no discharge after the expirarion date of this
permit,the Division should be promptly norified so ihat it can inacrivate the certification in accordance with Part
II.B.4.d.
9. Confideotialitv
Except for data determined to be confidential under Section 308 of the Federal Clean Water Act and Regularions for the
State Discharge Permit System 61.5(4), all reports prepared in accordance with the terms of this permit shall be
available for public inspection at the offices of the Division. The pernuttee must state what is confidential at the rime of
submittal.
Any information relaring to any secret process,method of manufacture or production,or sates or marketing data which
has been declazed confidentiai by the permittee,and which may be acquired,ascertained,or discovered,whether in any
sampling investigatiotl,emergency investigation,or otherwise,shall not be pubticly disclosed by any member,officer,or
employee of the Comrnission or the Division,but shall be kept confidential. Any person seeking to invoke the protection
of this section shall bear the burden of proving its applicability. This section shall never be inteipreted as prevenring full
disclosure of effluent data.
10. Fees
The permittee is required to submit payment of an annual fee as set forth in the Water Quality Con�ol Act. Failure to
submit the required fee when due and payable is a violation of the permit and will result in enforcement action pursuant
to Section 25-8-601 et.seq.,C.R.S.1973 as amended_
11. Requirin�an Individual CDPS Permit
The Director may require any owner or operator covered under this permit to apply for and obtain an individual CDPS
permit if:
a) The discharger is not in compliance with the conditions of this general permit;
b) Conditions or standards have changed so that the discharge no longer qualifies for a general pemvt;oz
c) Data become available which indicate water quality standards may be violated.
The owner or operator must be notified in writing that an application for an individual CDPS permit is required. When
an individual CDPS permit is issued to an owner or operator otherwise covered under this General Permit,the
applicability of the generai permit to that owner or operator is automatically inactivated upon the effective date of the
individual CDPS pemut.
COLORADO DEPARTMENT OF PUBLIC HE.4LTH AND ENYJRONMENT
Water Quality Contro!Division
WQCD-P-B2
4300 Cherry Creek Drive South
Denver, Colorado 80246-1530
RATIONALE
STORMWATER DISCHARGES ASSOCIATED WITH
CONSTR UCTION A CTI VI T Y
GENER,4L PERMIT IN COLORADO
SECOND RENEWAL
COLORADO DISCHARGE PERMIT NUMBER COR-030000
CONTENTS PAGE
I. Introduction 1
II. Background 2
IIL Stormwater Discharges Associated with
Construction Activity 3
IV. Coverage Under this Permit 4
Y. Application and Certification 4
VI. Qualifying Local Programs 4
VII. Terms and Conditions ofPermit S
VIIL Changes Made After Public Notice 7
L INTRODUCTION
- This permit is for the regulation of stormwater runoff from construction acrivities. The term "construction activiry"includes
clearing,grading and excavation operations. "Stormwater"is precipitation-induced surface runoff. This Rationale will
explain the background of the Stormwater program,activities which are covered under this perrnit,how to apply for coverage
under thrs permit, and the requirements of this permit.
The forms discrrssed in the Rationale and Permit are available on the Division's website at:
http://www.cdphe.stat�co.us/wq/permitsunit/wqcdpmthtml
A. Chan�es in this General Permit
Several notable changes from the previous General Permit for Construction Activities have been incorporated into this
permit. Most of the changes are related to the Phase II revision to the stormwater regulation in the Colorado
Discharge Permit System Regulations(SCCR 1002-61), effective March 2, 2001. Significant changes are listed below:
1. Permit coverage is now required for construction sites that disturb 1 to 5 acres(i.e., small construction
acrivities). Allowances have been made jor small construction activities to comply with the requirements of a
Division-approved Qual�ing Local Program(refer to section Vl below for a discussion of Qual�ing Local
Programs)in place of many specific requirements in the Permit, including requiremenu to submit an
application, inactivation notice, and fees to the Division. Refer to Part I.A.3 of the Permit and section VII.A of
the Rationale for more details.
2. The requirements to submit with the applicatiox the Township,Range,section and quarter section of a site and
a list of any other environmental permits for the site have been removed.
3. Inactivation requirements have been changed to allow small construction activities that submit applications
indicating a compleiion date Il months or less from the start of construction activity to be authorized for a
predetermined period from 3 to 12 months. The permit certification will include the automatic ezpiration date for
permit coverage. This expiration date will be in place of the requirement to submit an Inactivatton Notice. I�
permit coverage beyond the e.rpiration date is needed(i.e., the site has not been finally stabilized), the permittee
must submit an extension request form to the Division at least 10 days prior to the expiration.
COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT, Water Quality Control Division
Rationale-Page 2. Permit No. COR-030000
1. INTRODUCTION(cont.)
4. The Rationale discussion on the Exemptions for Sma11 Municipalities(Section IILB)has been changed to
include the March 10, 2003 deadline forpermit coverage for municipally-owned industries. This did not involve
any changes to the permit.
II. BACKGROUND
As required under the CZean Water Act amendments of 1987, the Environmental Protection Agency(EPA)has established a
framework for regulating municipal and industrial stormwater discharges. This framework is under the National Pollutant
Discharge Elimination System(NPDES)program (Note: The Colorado program is referred to as the Colorado Discharge
Permit System, or CDPS, instead of NPDES). The Water Quality Control Division("the Division')has stormwater
regulations(SCCR 1002-61)in place. These regulations require specific types of industrial facilities that discharge
stormwater associated with industrial activity(industria!stormwater), to obtain a CDPSpermit for such discharge. The
regulations specifically include consiruction activities that disturb one acre of land or more as industrial facilities.
Construction activities that are part of a larger common plan of development which disturb one acre or more over a period of
time are also inc[uded.
A. General Permits
The Water Quality Control Division ("the Division')has determined that the use ofgeneral permiu is the appropriate
procedure for handling the thousands of industrial stormwater applications within the State.
B. Permit Requirements
This permit does not require submission of effluent monitoring data in the permit application or in the permit itself. It
is believed that a fully implemented Stormwater Management Plan (SWMP)should be sufficient to control water
quality impacts.
Thepermit requires dischargers to control and eliminate the sources ofpollutants in stormwater through the
development and irnplementation of a SWMP. The plan must include Best Management Practices(BMPs),which will
include pollution prevention and source reduction measures. This will constitute BAT and BCT and should achieve
compliance with water quality standards. The narrative permit requirements include prohibitions against ducharges
of non-stormwater(e.g.,process water). Refer to Part 1.G2 of the permit.
In addition, as a condition of this permit, the permittee is required to pay the annual fee as described in the Water
Quality Control Act. Failure to submit the required jee when due and payable is a violation of the permit and will
result in enforcement action as discussed below. Permittees will be billed for the initial permit fee within a few weeks
of permit issuance.
Some construction activities may be required to comply with a Qualifying Loca!Program in place of ineeting several
of the specifzc requirements in this permit. Sites covered by a Qualifying Local Program may not be required to submit
an application for coverage or a notice of inactivation and may not be required to pay the annual fee.Refer to Section
VII.A of the Rationale for further information.
C. Violations/Penalties
Dischargers of stornrwater associated with industrial activity, as defined in the Regulations for the State Discharge
Permit System(SCCR 1002-61),which do not obtain coverage under this or oiher Colorado general permits, or under
an individual CDPS permit regulating industria!stormwater, will be in violation of the Federal Clean Water Act and
the Colorado Water Quality Control Act,25-8-101. For facilities cove�ed under a CDPS permit,failure to comply
with any CDPS permit requirement constitutes a violation. Civil penaliies for violations of the Act or CDPS permit
requirernents may be up to$10,000 per day. Criminal pollution of state waters is punishable by fines of up to$25,000
per day.
i '
COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENYIRONMENT, Water Qualiry Conrrol Division
Rationale-Page 3. Permit No. COR-030000
III. STORMWATER DISCHARGESASSOCIATED WITH CONSTRUCTIONACTIVITY
The Stormwater regulations require that stormwater discharges associated with certain industrial activities be covered under
the permit program. Construction activiry that disturbs one acre or rnore during the life of the project is spectfically included
in the listed industrial activities.
A. Construcrion Aciivity
Construction activity includes clearing,grading and excavation activities. Construction does not include routine
mainiennnce performed by public agencies, or their agents to maintain original line and grade, hydraulic capacity,
or original purpose of the facility.
Definitions of additional terms can be found in Part I.D of the Permit.
Stormwater discharges from construction activity require permit coverage,except for operations that result in the
disturbance of less than one acre of total land area which are not part of a larger common plan of development or
sale. A larger common plan of development or sale is a contiguous area where multiple separate and distinct
construction activities may be taking place at different times on d�erent schedules under one plan.
B. Types ofActivities Covered
This permit is intended to cover most new or existing discharges composed entirely of stormwater from construction
activities that are required by State regulation to obtain a permit. This includes stormwater discharges associated with
areas that are dedicated to producing earthen materials,such as soils,sand, and gravel,for use at a single
construction site. These areas may be located at the construction site or at some other location. This permit does not
authorize the discharge of mine water or process water from such areas.
This permit also includes stormwater discharges associated with dedicated asphalt plants and co»creie plants located
at the construction sites.
C. Types ofActivities NOT Covered
This permit does not cover stormwater discharged from construction sites that is mixed with stormwater from other
types of industrial activities, or process water of any kind. Other types of industrial activities.that require stormwater
discharge permits pursuant to d�erentsections of the regulations(Regulation 5 CCR 1002-61,Section 61.2(e)(iii)(A-I,
K)J,are not covered by this permit.
This permit also does not cover the discharge ofprocess water. If the construction activity encounters groundwater, a
Construction Dewatering Discharge Permit(Permit Number COG-070000)must also be obtained in order to
discharge this groundwater from the excavation site. An application for this permit can be obtained from the Division
at the address listerl in Part I.A.4.a of the Permit.
D. Exemptions for Small Municipalities
The Intermodal Surface Transportation E�ciency Act of 1991 (Se�tion 1068(c))added an exemption to the stormwater
regulations for municipalities with less than 100,000 population. The term "municipality"includes cities, towns,
counties,special distncts or any entity created by or pursuant to State law.
Stormwater discharges associated with construction activity for facilities or sites that are owned or operated by a
sma11 municipality are not required to apply for or obtain a stormwater permit until March l0,2003. (Note.• This
exemption does not apply to other,privately owned construction sites within the same small municipality.)
� .
COLORADO DEPARTMENT OF PUBLIC HEALTH.4ND ENYIRONMENT, Water Quality Control Ditiision
Rationale-Page 4. Permit No. COR-030000
IV. COVERAGE UNDER THIS GENERAL PE'RMIT
Under this general permit, operators of stormwater discharges associated with construction activity may be granted
authorization ro discharge stormwater into waters of the State of Colorado. This includes stormwater discharges associated
with industrial activity from areas that are dedicated to producing earihen materials,such as soils,sand and gravel,jor r�se
at a single construction site, and dedicated asplialt planLs and dedicated concrete planfs.
This permit does not pre-empt or supersede the authority of local agencies to prohibit,restrict or control discharges oj
stormwater to storm drain systems or other water courses within their jurisdiction.
Authorization to discharge under the permit requires submitta!of a completed application form and a certification that the
SWMP is complete,unless the site is covered by a Qualifying Local Program. Upon receipt of all required information, the
Division may allow or disallow coverage under the general permit.
V. APPLICATIONAND CERTIFICATION
At least ten days prior io the commencement of construction activities(i.e.;the initial disturbance of soils associated with
clearing,grading,excavation activities,installation of struciural BMPS,or other activities), the operator of the conshuction
site shall submit an original completed application which includes the signed ceriification that the SWMP is complete. In
order to avoid confusion during processing,original signatures are required for the application to be considered complete.
For small construcrion sites only, if the site is covered by a Qualifying Local Program(see below),submittal of an
application is not required.
For the purpose of this permit, the "operator"is the person who has day-to-day control over ihe project. Thrs can be the
owner, the developer, the general contractor or the agent of one of these parties, in some circumstances. At d�erent times of
a construction project, different types of parties may satisfy the definirion of'operator'and the certificarion may be
transferred as roles change.
(Note-Under the Federal regulations, this application process is referred to as a Notice of Intent,or NOI. For internal
consistency with iis current program, the Division will continue to use the term "application.")An outline of the permit
application requirements is found in the permit at Part I.A.4.b.
If this general permit is applicable, then a certification will be developed and the applicant will be certifzed under this
general permit.
VI. QUALIFYING LOCAL PROGRAMS
For stormwater ducharges associated with small construction activity(i.e.,one to five acre sites), the permit includes
conditions that incorporate approved qual�ing local erosion and sediment control program(Qualifying Local Program)
requiremenu by reference.A Qualifying Local Program is a municipal stormwater program for stormwater discharges
associated with small construction activity that has been formally approved by the Division. The requirements for Qualifying
Local Programs are outlined in Part 61.8(12)of the Colorado Discharger Permit System Regulations(also see the Drvision's ,
"Qual�ing Local Programs for Small Construction Sites-Application Guidance'). Such programs must impose
reguirements to protect water quality that are at least as stricY as ihose required in this permit.
A. Approval Termination: A Qualifying Local Program may be terminated by either the Division or the municipality.
Upon termination of Division approval of a Qualifying Local Program, any small construction activity required to
obtain permit coverage under Section 61.3(2)(h)of the State Discharge Permit System Regulations shall submit an
application form as provided by the Division, with a certification that the Stormwater Management Plan(SWMP)is
complete as required by Part I.A.4 of the Permit, within 30 days.
B Approval Expiration: Division approval of a Qunlifying Local Program will expire with thu general permit on June
30, 2007. Any municipality desiring to continue Division approval of their program must reapply by March 31, 2007.
The Division will determine if the program may continue as a approved Qualifying Local Program.
.< �
COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMEIVT, Water Quality Control Division
' Rationale-Page 5. Permit No. COR-030000 .
VII. TERMS AND CONDITIONS OF PERMIT .
A. CoveraQe under a OualifvinQ Local ProQram—For Small Construction Sites Only
For small construction sites(disturbing less than 5 acres)covered under a Qualifying Local Program(see Secrion YI
aboveJ,only certain permit requirements apply,as outlined below. The local program must have been formally
designated by the Division to qual�. Most municipalities have some type of localprogram and rnay require permits
and fees. However,simply having a program in place does not necessarily mean that it is a qualifying program and
that a State permit is not required. The local municipality wil!be responsible jor notifying operators and/or owners
that they are covered by a Qualifying Local Program.A list of municipalities with Qual�ing Local Programs is also
available at http://www.cdphe.state.co.us/wq/PermiuUnit/wqcdpmt.html.
The Division reserves the right to require any owner or operator within the jurisdiction of a Qualifying Local Program
covered under this permit to apply for and obtain coverage under the full requirements of Ihis permit.
1. Permit Coverage: If a construction site is within the jurisdiction of a Qual�ing Local Program, the operator of
the construction activity is authorized to discharge storntwater associated with small construction activity under
this general permit without the subrnittal ojan application to the Division. The permittee also is not required to
submit an inactivation notfce or payment of an annual fee to the Division.
2. Permit Terms and Conditions: The permittee covered by a Qualifying Local Program must comply with the
requirements of that Qualifying Local Program.In addition, the following permit sections are applicable:
i. I.A.1, I.A.l,and I.A.3: Authorization to discharge and discussion of coverage under the permit.
ii. I.C.I: General limitations that must be met in addition to local reguirements.
iii. I.C.l,I.C.3: Prohibition of non-stormwater discharges unless addressed in a separate CDPS permit, and
requirements related ta releases of reportable quantities.
iv. I.D: Additional definitions.
v. Part II (except for Parts II.A.1,II.B.3,II.B.8, and II.BIO): Speciftcally includes, 6ut is not limited to,
provisions applica6le in the case of noncompliance with permit requirement,and requirements to provide
information and access.
B. Stormwater Manaeement Plans(SWMPs) ,
Prior to commencement of construction, a stormwater management plan(SWMP)shall be developed and implemented
for each facility covered by this perrnit. A certification that the SWMP is complete must be submitted with the permit
application. The SWMP shall identifypotential sources ofpollution(including sediment)which may reasonably be
expected to affect the quality of stormwater discharges associated with construction activity from the facility. In
addition, theplan shall describe the best managementpractice(BMPs)which will be used to reduce thepollutants in
stormwater discharges from the construction site. Facilities must implement the provisions of their SWMP as a
condition of this permit. The SWMP shall include the following items:
1. Site Description
2. Site Map
3. BMPs for Stormwater Pollution Prevention
4. Longterm Stormwater Management
5. Other Controls
6. Inspecrion and Maintenance
7. Signatory Requirements and Availability
8. SWMP Review/Changes
(See Parr I.B. of the permit for a more detailed description of SWMP requirements.)
: •
COLOR.4D0 DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT, Water Quality Control Division
Rationale-Page 6. Permit No. COR-030000
VII. TERMS AND CONDITIONS OF PERMIT(cont.)
C. Monitorin.e
Sampling and testing of stormwater for spec�c parameters is not required on a routine basis under this permit.
However,the Division reserves the right to require sampling and testing on a case-by-case b¢sis, in the event that
there is reason to suspect that compliance with the SWMP is a problem, or to measure the effectiveness of the BMPs in
removing pollutanu in the effluent.
D. Facilitv Inspections
Active construction sites must inspect their stormwater management controls at leart every 14 days and after any
precipitation or snowmelt event that causes surface erosion. At sites where construction has been completed but a
vegetative cover has not been esrablished, these inspections must occur at least onceper month. At sites where winter
condirions exist, inspections are not required during the period that the winter conditions exist. For all oJthese
inspecrions, records must be kept on file. Refer to the permit at Pan I.C.S for detailed requirements of these
inspecrions.
E. Revision ofSWMP
Based on the results of the inspections(see D. above), the description of potential pollutant sources and the pollution
prevention and control measures, identified in the SWMP,and the control measures themselves,shall be revised and
modified as appropriate as soon as practicable after such inspection. Modification of control measures shall be
implemented in a timely manner; but in no case more than 7 calendar days after the inspecrion.
F. Reportin�2
The inspection record shall be made available to the Division upon request. Regular submittal of an annual report u
not required in this permit.
G. Annual Fee
The permittee is required to submit payment of an annual fee as set forth in the Water Quality Control Act. Permittees
will be billed for the initialpermit fee within a few weeks ofpermit issuance and then annually, based on a July 1
through June 30 billing cycle.
For small construction activities, if application was made for coverage with a completion date 12 months or less from
the stari of construction activity, a fee will be assessed based on the estimated number of calendar quarters the site is
active. Projects going beyond that time will be billed the standard annual fee.
H. Inactivation Notice
When a site has been finally stabilized in accordance with the SWMP,the operator of the facility shall submit an
Inacrivation Notice that is signed in accordance with Part LE.1 of the permit. The content of the Inactivation Notice is
descnbed in Pa�t LA.6 of the permit. A copy of the Inack'vation Notice form will be mailed to the permittee along with
the permit certification. Additional copies are available from the Division.
An exception to the reguirement to submit an inactivation has been included in the renewed permit for Small
Construction Sites that will be f:nally stabilized within 12 months of the beginning of construction activities.In such
cases, the permit certificarion will indicate the automatic expiration date. If permit coverage is needed 6eyond ihat
date, an eztension request form must be submitted to the Division at least 10 days pnor to the expiration date.
� r
COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENYIRONMENT, Water Quality Control Division
� Rationale-Page 7. Permit No. COR-030000
YII. TERMS AND CONDITIONS OF PERMIT(cont.)
I. Transfer o Permit
When responsibility for stormwater discharges at a construcrion site changes from one individual to another, the
permit shall be transferred in accordance with Part I.A.7 of the permit. The Notice of Transfer form wil!be mailed to
the permittee along with the permit certif:cation. Additional copies are available from the Division. If the new
responsible party will not complete the transfer form,the permit may be inactivated if the perinittee has no legal
responsibility, through ownership or contract,for the construction activities at the site. In fhis case,the new operator
would be required to obtain permit coverage separately.
J. Duration o Permit
The general permit will expire on June 30,1007. The perminee's authority to discharge under this permit is approved
until the expiration date of the general permit. Any permittee desiring continued coverage under the generol permit
must apply for recertification under the general permit at least 90 days prior to its expiration date.
Nathan Moore
March 11, 2002
YII CHANGES MADE AFTER PUBLIC NOTICE
Several comments were received from the Environmental Protection Agency(EPA). Changes based on these comments and
additiona!internal review are discussed below:
A. The EPA commented that language needs to be added to the permit addressing the certif:cation requirements for
inspection reports. Part 1.E.1 of the Permit requires that all reports submitted to the Division include specific
ceKification language. Because site inspections required by Part I.C.�of the permit are not submined to the Division,
they are not covered under Part I.C.S of the Permit or Regulation 5 CCR 1002-61,.Section 61.4(1)(�,which require
specif:c certification language.
However,Regulation S CCR 1002-61,Section 61.8(4)(o)(ii)(B)does require that the permittee maintain a record
summanzing the inspections that includes a certif:cation that the site in compliance with the plan and the permit.
Therefore, language has been added to Part I.C.S of the Permit, requiring that a signed statement be included with all
records of inspection on the status of cornpliance at the site.
B. The EPA recommended ihat the Permit and Rationale be changed to indicate that the application is due ten days prior
to the commencement of construction activities, instead of prior to the anticipated date of discharge. The Division
agrees that this wording is preferable and more accurately indicates the Division's existrng interpretation of the
regulations. These changes have been made.
C. The EPA expressed concern with requiring a permiftee to transfer permit coverage in cases where the new responsible
party may not be cooperative. Language has been added to the Permit and Rationale clarifying that termination of
perrnit coverage is allowed when the permittee no longer has any legal responsibility through ownership or contract
for the construction activity.
D. The EPA commented on the lack of a definition for the terms "receiving water"and"ultimate receiving wate�". A
definition has been added to the Permit, and the term "ultimate receiving water"clarified to indicate that it means the
first named receiving water, if the discharge initially goes to an unnamed ditch or storm sewer.
Nathan Moore
May I5, 2002
� ,
.
Colorado Department of Public Health &Environment
Water Quality Control Division Rec
WQCD-P-B2
4300 Cherry Creek Drive South Eff
Denver,Colorado 80246-1530 Year Month Day
NOTICE OF TRANSFER AND ACCEPTANCE OF TERMS OF A
STORMWATER DISCHARGE GENERAL PERMIT CERTIFICATION
1)To be completed by the NEW permittee:
1 hereby accept transfer of this Colorado Discharge Permit Certification No.CO_______,Which was
issued to . I have reviewed the terms and conditions of this permit and the Stormwater
Management Plan and accept full responsibility,coverage and liability. This transfer wiil be effective on:
The facility site is located at:
Street Address
Ciry,State and Zip Code
Counry Name of facility or development
The NEW permittee is:
Company Name
Mailing Address
City,State and Zip Code
Phone No. Fed.Taxpayer(or Employer)ID No._________
Local Contact(familiar with facility)
Title Phone Number
I certify under penalty of law that I have personally examined and am familiar with the information submitted herein,and
based on my inquiry of those individuals immediately responsible for obtaining the information, I believe that the
information is true,accurate and complete. 1 am aware that there are significant penalties for submitting false information,
including the possibiliry of fine and imprisonment
Signature of Permit Applicant(Legally Responsible Parry) Date Signed
Name(printed) Title
2)To be completed by the Previous permittee:
As previous permittee,I hereby agree to the transfer of the above referenced permit and certification and all responsibilities
thereof.
Name
Mailing Address
Ciry,State and Zip Code
Phone No. Fed.Taxpayer(or Employer)ID No._________
Signature of Permit Applicant(Legally Responsible Pariy) Date Signed
Name(printed) Title
9/97/trans
{ �� �
• Colorado Department of Public Health&Environment FOR AGENCY USE ONLY
Water Quality Control Division
WQCD-P-B2 �C
4300 Cherry Creek Drive South E�
Denver,Colorado 80246-1530 YEAR MONTH DAY
INACTIVATION NOTICE FOR
CONSTRUCTION STORMWATER DISCHARGE GENERAL PERMIT CERTIFICATION
Please print or tvpe Form must be filled out completely.
Certification Number: COR-03____ Taxpayer ID or EIN_________
Permittee(Company)Name:
Permittee Address:
Phone No.( )
Site/Facility Name:
Construction Site Address/Location:
County: Contact Person:
Summary of work performed and description of final site stabilization:
I certify under penalty of law that by the date of my signature below, all disturbed soils at the identified conshuction site
have been finally stabilized;all temporary erosion and sediment control measures have been removed;all construction
and equipment maintenance wastes have been disposed of properly,and all elements of the Stotmwater Management
Plan have been completed.
I understand that by submitting this notice of inactivation,I am no longer authorized to dischazge stormwater associated
with construction activity by the general permit. I understand that discharging pollutants in stormwater associated with
construction acrivities to the watets of the State of Colorado,where such discharges are not authorized by a CDPS
permit,is unlawful under the Colorado Water Quality Control Act and the Clean Water Act.
I certify under penalty of law that I have personally examined and am familiar with the information submitted herein,and
based on my inquiry of those individuals immediately responsible for obtaining the information,I believe that the
information is true,accurate and complete. I am aware that there are significant penalties for submitting false
informarion,including the possibility of fine and imprisonment. (See 18 U.S.0 1001 and 33 U.S.C. 1319.)
Signature of Permit Applicant(Legally Responsible Party) Date Signed
Name(printed) Title
9/97/cn/in
� �� � . . �� � �-ov
. � - , �
�
For�Qencv Use Onlv
GE�tERAL PER1vBT APPLICATION
COR- 03 _
STORMWATER DISCHARGES Date Received
ASSOCIATED WZTH: Year Month Day
CONSTRUCI'ION ACTIVITY
(P�rrnit No.COR-030000) Code: 9A 9B 9C(I) 9D(2) 9E(3) 9F(4)
Please print or type. All items must be completed accurately and in their entirety or the applicabon will be deemed incomplete and
processing of the permit will not begin until all information is received. Please refer to the instrucrions for mformation about the
required items. An original signature of the appiicant is required.
i. Name and address of the permit applicant:
Company Name V fa��- ��E�-°Prrlrc,1T �-�-L-
MaiFine Address So S (�� ST sa�-r� t'�'8�
City,State and Zip Code M�aa�,c��oL�s M►� SStf�fl2
Phone Number( ���-) 3�3 - ��Z.3 Who is applying? wner Developer Contractor
Federal Taxpayer(or Employer)ID#: �- �- � z' � � Z `� �
Enrity Type• rivat Federal State County City Other:
Local Contact �iar with�Faciliry \�,2� �!,`��T G'V�`L• , ." .
7itle t��/ �iL' G ! ��'l-e .Phone Number ����✓ —�"�� -
2. Location of the construction site:
Street Address l3 �atiL' �Zo¢`� � � s F�a.�-�aG�
City,State and Zip Code � � G� a��S1
County �AG� Name of plan or development �`�'R ��Sor,tS
Latitude and Longitude
3. Briefly describ�e�h na�u e �the construcfion ctivity: � � I `G /� � _
�� r r,� -v --� ��
�1��� <�v o 7`�w �SL�
�I� ` GI -�!
�
� � ��
vov�onsc -1-
� I
. . . , I
4. Anticipated construction schedule (SEE L�iSTRUCTIONS'): ,^
� ���C� ���
Commencement date: �� Completion date:
S. Area of the construction site:
Total area of project site (acres) 2•�Z ��£S
Area of project site to undergo disturbance(acres) fi �•� (,�GVQ,J �� � 7 �� C � yC/���
If project site is part of a Larger Com�n Plan o,Dev opm�or ale, tota�ea of co on p to un�er dis bance
(see Instructions) r � `e '�
7�
Q,��- � ,6��6d,r��-�
6. The name of the receiving stream(s/). (If discha is to a itch or storm sewer, also include the name of the ultimate
receiving water): ,G��� ���
C—�
7. Stormwater Management Plan Certification:
"I certify under penalty of law that a complete Stormwater Management Plan, as described in Appendix A of this
application,has been prenared for mv facility. Based on my inqt:iry of the person or persons who manage the system, or
those persons directly responsible for gathenng the mformation, tbe Stormwater Management Plan is, to the best of my
knowledge and belief,true, accurate, and complete. I am aware that there are significant penalties for falsely certifying
the completion of said SW1�fP, inciuding the possibiliry of fine and imprisonment for knowing violarions."
� C� ���` � �� o
S�4nature of Applicant Date Signed
`� 1�uG.t.o�S C�- -���S���e� J�C.E I`��.r-�A4-�sTZ
Name (printed) Title
8. Signature of Applicant (legally responsible person)
"I certify under penalty of law t.�at I have personally examined and am familiar with the information submitted in this
application and all attachments and that, based on my inquiry of those individuals immediately responsible for obtaining the
information,I believe that the informatton is true, accurate and complete. I am aware that there are significant penalties
for submitting false informarion,including the possibiliry of fine or imprisonment."
.�, � s� S l b aS
Signature of Apphcant Date Signed
�jov.�t�-s �- �tps���� � �� — M.c�s�c��Z
Name (printed) Title
2/02lconst '2- �
STORMWATER MANAGEMENT PLAN
B�ST MANAGEMENT PRACTICES
FOR
FOUR SEASONS HOTEL
v�L, coLOxaDo
MAY 2005
s� .
I
, . ° I�
STORMWATER MANAGEMENT PLAN
BEST MANAGEMENT PR.ACTICES
FOR
FOUR SEASONS HOTEL
VAIL, COLORADO
MAY 2005
Prepared for: The John Hardy Group
5180 Roswell Road
The Centre Building
Atlanta, GA 30342
Prepared by: Alpine Engineering, Inc.
P. O. Box 4603
Frisco, CO 80443
TABLE OF CO�TTENTS
1. Site Description
a. Construction Activity
b. Sequence of Construction
c. c�±P a.reas
d. Runoff Coefficients,�Soils
e. Existing Vegetation
f. Potential Pollution Sources
g. Non-Stormwater Components of the Discharge
h. Receiving Waters
2. Site Map
3. BMP's for Stormwater Pollution Prevention
a. Erosion and Sediment Controls
l. Structural Practices
2. Non-Structural Practices
b. Materials Handling and Spill Prevention
4. Final Stabilization and Longterm Stormwater Management
5. Other Controls
6. Inspection and Maintenance with Sample Inspection Log
7. Reporting
8. Retention of Records
9. Inactivation l�'otice
10. Sediment Control Details
a. Stabilized Construction Entrance
b. Silt Fencing
FOUR SEASONS HOTELS:4ND RESORTS Stormwater 1Llanagement Plan
,
1. Site Description
a. Construction Activitv
The Proposed Four Seasons Hotel is located in Vail, Colorado. The site is currently
developed. Construction at the Four Seasons Hote1 will consist of construction of a multi-
story hotel with several stories of below �rade parking structure, and associated utility
connections.
b. Sequence of Construction
(i) Fence site and demolish e�sting structures.
(ii) Remove portions for Vail Road adjacent to site.
(iii) Construct stabilized construction entrances.
(iv) Install silt fencing.
✓(v) Install sedimentation ponds with overflow weirs for storm water treatment. Install -
storm water improvements in Vail Road and the South Frontage Road.
(vi) Begin excavation and shoring for below gsade construction.
(vii) Begin excavation. Place excess excavated material in on-site and off-site
stockpiles. Silt fencing shall surround stockpiles. Pump ground and storm water
to sedimentation ponds..
(viii) Begin building foundation excavation.
(i�) Complete subgrade construction and foundation backfill.
(x) Commence above grade building construction.
(xi) Install all site drainage and utility infrastructure.
(xii) Complete driveway and plaza grading and pave.
(xiii) Complete final site stabilization and landscaping.
c. Site Areas
Total site area = 2.72 acres.
Total disturbed area = 3.0 acres.
d. Runoff Coefficients/Soils
Runoff coefficients based upon the U.S. Soil Conservation Service, and the Town of Vail
Engineering Department.
Pre construction RCN = 92
Post construction RCN = 95
e. Existing Vegetation
The site is currently developed. E�sting development includes paved parking areas, a
gas station and landscaped areas. The site is currently 84% impervious. The site has
some tree cover in e�sting landscaping. The remainder of the site is primarily grass.
FOUR SEASONS HOTELS.4ND RESORTS Stormwater Nlanagement Plan
f. Potential Pollution Sources
Vehicle fuelin�will be done wherever construction is taking place by mobile fuel trucks.
Fertilizers or chemicals will be stored in a trailer or covered with a waterproof material.
An environmental assessment will be performed at the time the abandoned fuel tanks are
removed from the site to insure that soil and groundwater remediation measures are not
required.
g. Non-stormwater components of the discharge
Groundwater discharges may be required during below grade building construction.
h. Receiving Waters
Runoff from the Four Seasons Hotel shall discharge to the Gore Creek via onsite detention
facilities and the Town of Vail storm sewer system.
2. Site Map
See next page.
FO�,'R SEASONS HOTELS AND RESORTS Stormwater Management Plan
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3. BVIP's for Stormwater Pollutoin Prevention
a. Erosion and Sediment Controls
1. Structural Practices
The foLowir_g stn�c?��rai_ eros?on and sediment controls shall be implemented prior
to any site disturbance: installation of two (2) stabilized construction entrances,
installation of silt fencing and installation of sedimentation ponds. When site
drainage infrastructure has been placed strawbale, inlet protection shall be placed.
Silt fencing shall be placed around the base of stockpiles.
2. Non-Structural Practices
Stockpiles that are to remain eYposed for more than 30 days shall be covered with
plastic or a temporary mulch. Final stabilization shall be provided by placement
of topsoil, seed, fertilizer, mulch and landscaping, or pavement. Limits of
construction shall be kept to a minimum.
b. Nlaterials Handling and Spill Prevention
Stockpiles of topsoil and road base material shall have proper sedunent controls such as a
silt fence surrounding them.
Equipment maintenance or fueling operations will take place wherever the construction
equipment is working at the time. Care shall be taken to avoid spills during maintenance
and fueling operations and any accidental spills shall be cleaned up promptly and
completely. The Contractor shall prepare a plan that immediately mitigates all problems
associated with any potential fuel spills.
There shall be no fertilizers or chemicals left exposed to the elements. The Contractor
shall prepare a plan that isrunediately mitigates all problems associated with any potential
fertilizer or chemical exposure or accident.
There will be no dedicated concrete batch plants or dedicated asphalt plants on the site.
The Contractor shall not discharge concrete wash water into state waters or to storm
sewer system.
Should the status of any of these items change, the Contractor shall submit a revision to
the Stormwater Management Plan with response procedures identified.
FOUR SEASONS HO�LS AND RESORTS Stormwater 1Llanagement Pfan
4. Final Stabilization and Lon�term Stormwater iVlana�ement
Final stabilization sha11 occur by topsoiling, seeding, fertilizing, mulching and
landscaping, or paving all disturbed areas. Final stabilization is reached when a11 soil
disturbing activities at the site have been completed and uniform vegetative cover has
been established with a density of at least 70 percent of pre-disturbance levels or
equ;valent permanent physical erosion-reduction methods have been employed.
Stormwater discharged from paved surfaces are likely to accumulate a small amount of
sediment and pollutants from vehicles, and may contribute to heat pollution of receiving
waters. Stormwater from paved surfaces shall be directed to the Town of Vail storm
sewer system.
5. Other Controls
Off=site soil tracking will be limited by providing stabilized construction entrances at the
entrances to the project. The stabilized construction entrance will consist of 2-inch
crushed screen rock, 10-feet wide for a length of 50 feet at the entrance to the site. The
Contractor is responsible for not tracking soil off=site. If soil is tracked offsite, the
contractor is responsible for the immediate cleaning and restoration of the offsite area to
original condition.
During dry periods, implement dust control measures using water or chemical
suppressants on all construction roads and soil stockpiles as necessary.
Waste from the demolition of existing structures shall be disposed of ofF site.
6. Inspection and l�'Iaintenance with Sample Inspection Loa
The permittee shall make a thorough inspection of their stormwater management system
at least every 14 days and after any precipitation ar snowmelt event that causes surface
�
erosion.
(a) The construction site perimeter, disturbed areas and areas used far material
storage that are exposed to precipitation shall be inspected for evidence of, or the
potential for, pollutants entering the drainage system. Erosion and sediment control
measures identified in the SW1V1P shall be observed to ensure that they are operating
correctly.
(b) Based on the results of the inspection, the description of potential pollutant
sources, and the pollution prevention and control measures that are identified in the
SWMP shall be revise and modified as appropnate as soon as practical after such
inspection. Modifications to control measures shall be i_mplemented in a timely manner,
but in no case more than seven (7) calendar days after the inspection.
FOLR SEASONS HOTELS AND RESORTS Stormwater Management Plan
(c) The operator shall keep a record of inspections. Uncontrolled releases of mud or
muddy water or measurable quantities of sediment found off the site shall be recorded
with a brief explanation as to the measures taken to prevent future releases as well as any
measure taken to clean up the sediment that has left the site. This record shall be made
available to the Division upon request.
See neYt page for Sample Inspection Log
FOUR SEASONS HOTELS A1VD RESORTS Stormwaier Management Plan
STORWATER NL�YAGEI�IENT
BEST 11��NAGEMENT' PR�CTICES
FOUR SEASONS HOTEL
INSPECTION LOG
Lti"SPECTION DATE:
(Inspections shall occur at least every 14 days)
INSPECTOR:
Print name
RECENT PRECIPITATION:
date,rain/snowmelt(inspections shall follow�precipitation or snowfall that causes surface erosion)
The inspector shall review potential pollution source areas on site, including: site perimeter,
disturbed areas, areas used for material storage, site entrances and e�ts, areas used for fue?ing
operations and chemical storage. Erosion and sediment control measures shall be observed to
ensure they are operating correctly.
POTEIV'TIAL POLLUTION SOURCES:
REQtiIRED REVISION TO CONTROL 1�1EASURES:
DATE REVISION COMPLETED: (�To later than 7 days following inspection)
DID AIVY UNCONTROLLED RELEASES OCCL12? DESCRIBE RELEASE AND
ACTIONS TAKEN:
MEASURES TAKEN TO PREVENT FUTU�RE RELEASES:
INSPECTOR'S SIGNATURE:
Copies of this log shall be kept by the responsible party and made available to the Division upon request.
FOUR SEASONS HOTELS AND RESORTS Stormwater Management Plan
7. Reportina
No regular reporting requirements are included in this permit; however, the Division
reserves the right to request that a copy of the inspection reports be submitted.
8. Retention of Records
(a) The permittee shall retain copies of the SWMP and all reports required by this
permit and records of all data used to complete the application to be recorded by this
permit, for a period of at least three (3) years from the date that the site is fmally
stabilized.
(b) The permittee shall retain a copy of the S WMP required by this permit at the
construction site from the date of project initiation to the date of final stabilization.
9. Inactivation Notice
See next page.
FOUR SEASONS HOTELS AND RESORTS Stormwater Managernent Plan
, � Colorado Depar�nent of Public Hea1_th&Envircnmenr FOR AGEvCY USE O�ZY
Water Quality Control Division �
WQCD-P-B2 �C
4300 Cherry Creek Drive South EFF
" Denver, Colorado 80246-1530 ��EAR MONTH DAY
Il\TACTIVATION NOTICE FoR
CONSTRI;CTION STORi1�1WATER DISCHARGE GENER�,L PERiVIIT CERTIFICATION
Flease print or t-r—NZ Forn rlust b°filled cu±com�letelv.
Certification Number: COR-03___— Taxpayer ID or EIN____.—————
Permittee (Company)Name:
Permittee Address:
Phone No. ( )
Site/Facility Name:
Construction Site Address/Location:
County: Contact Person:
,
Summary of work performed and description of fmal site stabilization:
I certify under penalty of law that by the date of my signature below, all disiurbed soils at the ideniified construction site
have been finally stabilized; all temporary erosion and sediment control measures have been removed; all constrnction
and equipment maintenance wastes have been disposed of properly; and all elements of the Stormwater.Management
Plan have been completed.
I understand that by submitting this notice of inactivation, I am no longer authorized to discharge stormwater associated
with construction activity by the generat permit. I understand that discharging pollutants in stormwater associated with
construction activiiies to the waters of the State of Colorado, where such discharges are not authorized by a CDPS
permit, is unlawful under the Colorado Water Quality Control Act and the Clean Water Act.
I certify under penalty of law that I have personall�exarnined and am familiar with the information submitted herein, and
based on my inquiry of those individuals immediately responsible for obtaining the information, I believe that the
information is true, accurate and complete. I am aware that there are sieruficant penalties for submitting false
information,including the possibility of fine and imprisonment. (See 18 U.S.0 1001 and 33 U.S.C. 1319.)
�ignature of Permit Applicant(Legally Responsible Party) Date Signed
Name (printed) Title � �
9/97/c�in
10. SEDIMENT CONTROL DETAILS
FO UR SE<4SONS HOTELS AND RESORTS Stormwater�tanagement Plan
50' Min.
3 10' EXISTING PAVEMENT
in Is �� 5�1 CL
1`
ii ,�✓ � /� � : {�.�;�i�,i
FILTER CLOTH EARTH �AOUN7ABlE BERM (OP710NAL)
V-------._�
50' Min. EXIS7�NG PAy'��tii
0
�xrs�i����° � Ax,
"�C-ushed Sceened Rock �
y �o � 0� M n.
�:-
=� °'=��.,
�,r
����� �.
�'x��;��� ���, �: � -
_ - o "
3'
CONSTRUCTION NOTES FOR STABILIZED CONSTRUCTION ENTRANCE
1. STONE — USE 2" CRUSHED SCREEN ROCK.
2. LENGTH — AS REQUIRED, BUT NOT LESS THAN 50 FEET.
3. THICKNE55 — NOT LESS THAN SIX (6) INCHES.
4. WIDTH — TEN (10) FEET MINIMUM, BUT NOT LESS THEN THE FULL WIDTH WHERE INGRESS OR EGRESS OCCURS.
5. FILTER CLOTH — WILL BE PLACED OVER THE ENTIRE AREA PRIOR TO PLACING OF STONE.
6. SURFACE WATER — ALL SURFACE FLOWING OR DIVERTED TOWARD CONSTRUCTiON ENTRANCES SHALL BE PIPED
ACROSS THE ENTRANCE. IF PIPING IS IMPRACTICAL, A MOUNTABLE BERM WITH 5:1 SLOPES WILL BE PERMITTED.
7. MAINTENANCE — THE EN7RANCE SHALL BE MAINTAINED IN A CONDIl10N WHICH WILL PREVENT TRACKING OR FLOWING
OF SEDIMENT ONTO PUBLIC RIGHT—OF—WAY. THIS MAY REQUIRE PERIODIC TOP DRESSING WITH ADOITIONAL STONE AS
CONDITlONS DEMAND AND REPAIR AN�/OR CLEAN OUT OF ANY MEASURES USED TO iRAP SEDIMENT. ALL SEDIMENT
SPILLED, DROPPED, WASHED OR TRACKED ONTO PUB�IC RIGHT—OF—WAY MUST BE REMOVED IMMEDIATELY.
8. WASHING — WHEELS SHALL BE CLEANED TO REMOVE SEDIMENT PRIOR TO ENTRANCE ONTO PUBLIC RIGNT—OF—WAY.
WHEN WASHING IS REQUIRED, IT SHALL BE DONE IN AN AREA STABILIZED WITH STONE AND WFiICN DRAINS INTO AN
APPROVED SEDIMENT TRAPPING DEVICE.
9. PERIODIC INSPECl10N AND NEEDED MAINTENANCE SHALL BE PROVIDED AFTER EACH RAIN.
CONS'T'RtJC�°ION EN'T'RANCE
N.T.S.
� • � � �
O GRAVEL FILLED
SANDBAGS ARE
STACKED TIGHTLY
CATCH CURB BACK
BASIN . INLET �OF CURB
< • . .
e . �Q, . . . , .a � . .. a . . :a: ,
SPILLWAY
O
P�AN VIEW
CURB iDEWALK
�PONDING HEIGHT INLET
SPILLWAY
. . .' n � a. . .
e ` <-
_ •.. \//\//\//\//\//\//\//\//\//\/\ .
. . \\�\\�\\�\\�\\�\\�\\�\\�\\\/�
� �� � � \ , ���/�\�/�\�/•` /i\/�\/�\��` /
��\//\/�\//\//\// �:,. '. .\//\//\j
/\\\\\/\\ • BASIN . \\/�\/\
� .• ���/
��� " � ' \�/\�/.
//�\ - -. �\��\\/
�\� -
SECTION A-A
NOTES:
1. CONSTRUCT BARRIERS TO ALLOW WATER TO POND AND SEDIMENT TO SETTLE
WITHOUT DIVERTING FLOWS AWAY FROM STORM DRAINS.
2. THE AREA AROUND OR IN FRONT OF THE STORM INLET PROTEC110N SHALL
BE RELATIVELY FLAT OR EXCAVATED TO PftOVIDE FOR SEDIMENT DEPOSI110N.
3. DESIGN BARRIERS TO ALLOW FOR OVERFLOW INTO INLET DURING SEVERE STORMS.
4. CONSIOER THE POTENIIAL FQR DAMAGE TO ADJACENT AREAS OR INTERFERENCE
WITH TRAFFIC IF WATER PONDS OR INLETS ARE BYPASSED.
5. MARK INLETS WITH STAKES OR POLES 50 THEY CAN BE CLEANED DURING WINTER
IF NECESSARY.
6. INSTALL AND MAINTAIN CATCH BASIN FILTERS AT ALL CATCH BASINS.
�UR� INLET PROTECTION
N.T.S.
. . � ,
. .
,
WOVEN WfRE FENCE (MIN. 14 1/Z GAUGE,
MAX. 6" MESH SPACING)
10' MAX. C. TO C. 36" MIN. FENCE POSTS,
I � DRIVEN MIN. 16" INTO
I GROUND
7--.-.�F�I I ���
� F` � —
i"'� E' -�, l s i ° �� ; � -,— y'�_' —
;��`�`- •, : �-'�i"�"'-t----�---_�_;.___----�_ t t s > :� �
—.___�___�_ '
� i---�----�.,�,-l�v . F _._-- --�_,----�_.
! ,':� t -�-.._� � k
_ "� —�_`_`$—�----�-,-.` ' 4 { �{ Y �� f�-"t�-.:'-----_.� HEIGHT OF FILTER
~---{--.`:_ t �`�'-�-- 'k t i f:' = 16" MIN.
'.:`�� <
� � � � t ,
1 � ' " - --�" ` � �� � �
,"-� ` ,
�_ � } `—`x- --,-; 1
~_� �- <' ; ` �
�j \ j 8" MIN. EMBEDMENT
cV �O� . v --- _...t_V _�
PERSPECTIVE VIEW F
36" MIN. FENCE POST
WOVEN WIRE FENCE (14 1/2 GA. MIN., MAX. �
6° MESH SPACING) WITH �ILTER CLOTH OVER
4" COMPACTED 20" MIN.
BACKFILL
FLOW UNDISTURBED
�— GROUND
EMBED FILTER CLOTH 16" MIN.
MIN. 8" INTO GROUND �
SECTION
CONSTRUCTION NOTES FOR FABRICATED SILT FENCE
1. WOVEN WIRE FENCE TO BE FASTENED SECURELY TO POSTS: STEEL EITHER T OR U TYPE OR
FENCE POSTS WITH WIRE TIES OR STAPLES. 2" HARDWOOD.
2. FILTER CIOTH TO BE FASTENED SECURELY TO FENCE: WOVEN WIRE. 14 1/2 GA. 6"
WOVEN WIRE FENCE WITH T1ES SPACcD EVERY 24" MAX. MESH OPENING.
AT TOP AND MID SECTION.
3. WHEN TWO SECTIONS OF FILTER CLOTH ADJOIN EACN FILTER CLOTH: FILTER X, MIRAFI t00X,
OTHER THEY SHALL BE OVERLAPPED 8Y TWELVE INCHES STABILINKA T140N OR APPROVED
AND FOLDED. EQUAL.
4. MAINTENANCE SHALL BE PERFORMED AS NEEDED AND PREFA8RICATED UNIT: GEOFAB,
MATERIAL REMOVED WHEN "BULGES" DEVELOP IN ENVIROFENCE, OR APPROVED
THE SILT FENCE. EQUAL.
�IL'7' �ENCE
N.T.S.
. _�
Permit No. COR-030000
Facility No. COR-038447
PAGE 1 of 17
CERTIFICATION
CDPS GENERAL PERMIT
STORMWATER DISCHARGES ASSOCIATED WITH
CONSTRUCTION
Construction Activity: The construction activity includes demolition of existing buildings and
construction of a new building with parking.
This permit specifically authorizes: Vail Development, LLC
to discharge stormwater from the facility identified as Four Seasons
which is located at: 13 Vail Road &28 S. Frontage
Vail, Co 81657
latitude 39/38/45, longitude 106/23/30 in Eagle County
Gore Creek to: Colorado River
effective: 06i28/2005
Annual Fee: $270.00 (DO NOT PAY NOW. You will receive a prorated bill.)
Page 2 of 17
Permit No. COR-030000
CDPS GENERAL PERMIT
STORMWATER DISCHARGES A�SSOCIATED WITH
CONSTRUCTION ACTIVITY
AUTHORIZATION TO DISCHARGE UNDER THE
COLORADO DISCHARGE PERMTT SYSTEM
In compliance with the provisions of the Colorado Water Quality Control Act, (25-8-101 et seq., CRS,
1973 as amended) and the Federal Water Pollution Control Act, as amended(33 U.S.C. 1251 et seq.; the
"Act"),this permit authorizes the discharge of stormwater associated with constructian activities certified
under tius permit, from those locations specified throughout the State of Colorado to specified waters of
the State. Such discharges shall be in accordance with the conditions of this permit.
This permit specifically authorizes the facility_listed on page I of this permit to discharge stormwater
associated with construction activity, as of this date, in accardance with permit requirements and
conditions set forth in Parts I and II hereof. A.Il discharges authorized herein shall be consistent with the
terms and conditions of this permit.
This pemut and the authorization to discharge sha11 expire at midnight, 3une 30, 2007.
Issued and Signed this 21st day of May, 2002
CC�LORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONNLENT
� ` '
Fo-z.
J. David Holm,Director
Water Quality Control Division �
DATE SIGNED: NIAY 21,2002
EFFECTIVE DATE OF PERNIIT: 3ULY 1,2002
TABLE OF CONTENTS
PARTI
A. COVERAGE iJlv`DER THIS PERMIT.---.......••---•.........................................................•-•...............---........................_...__........... 3
1. Authority to Discharge.......................................................................................................................................•---.. 3
a) Applicabie Sections.........................................................................................................................•�-----. 3
2. Industries Covered Under this Permit....................................................................................................................... 3
a) Definitions:--•.......................................................•---..._........---........._....-•--••-......_::............_...._................. 3
b) Types of Acrivities Covered by this Pemvt: .....-•-...•-•..........................................:.................................. 3
3. Permit Coverage Without Applicarion..........................................•..............._........._...._....................................._..... 3
a) Applicable Sections....................................................••............---................................_........................... 3
b Local A enc Authori • • � • • • • • • • • • • • •- 3
. . .
g Y •................................. ... ........ .... ..... ......... ........ ........................... .....
c) Permit Coverage Termination.............................................................................•--•--.................-•----------. 4
d) Compliance with Qualifying Local Program..........................•.•-•-----•�-•---...............--•.............................. 4
eFull Permit A licabili .......--�-•..................�---...._............---•......................_........................ 4
) PP tY-•••...............
4. Application,Due Dates ..................................•-•-�---.........................................._..........••••..........._.........._....._............ 4
a) Application Due Dates...............................................................•--.............................._.................._........ 4
b) Summary of Applicarion..........................................................................................................•--............ 4
5. Peimit Certificarion Procedures......................................................•-•...•••••-..........----......_...........••--••---._........_.....__... 4
a) Request for Additional Information......-�...........................................................•--.................................. 5
b) Automatic Coverage............................•--......_..-------......_..........._........_.................................._.................. 5
c) Individual Pemut Required.........................................................••-•---........---................-•••--..............---... 5
d) Temporary Coverage....................•--............................._.........................................__.....------..__..._............ 5
e) General vs.Individual Permit Coverage.............................................................�--..........--�--............_...... 5
Local A enc Authori .....-•..............................•._.._..-�-----•.............._..............--�-----.... 5
� € Y tY............................
6. Inactivation Notice..........................•••---................---...-----............._...•••---•--............_.........._......................._.............. 5
7. Transfer of Permit.............••••---......_....----...---•-�•-�-----•-----........_..........._.................-----..............._..........._.............._..... 5
8. Permit Expiration Date_......---•-•....................................................................••---..._....._............................---•---.......... 6
9. Individual Permit Criteria.................................••---...._.....------.................---...............---.....•--....._...._....-•----�-�---•-------.. 6
B. CONTENTS OF THE STORMWATER MANAGEMENT PLAN...................................••-•---.........------..-....-......_..................... 6
1. Site Descriprion..............................•---..............._......_.....--�---•-----�-••-�---•......----•......_............_............._........_..........._.. 7
2. Site Map........................... •---..._.....-----...._........_...----�--....................._..............................._._...••-•----..._......... 7
..............
3. BMPs for Stormwater Pollubon Prevenrion.................................................................•---------............__............_....... 7
a) Erosion and Sediment Controls..................................................................................................•----•---•---. 7
b) Materials Handling and Spill Prevention....................................................................�--....--•-----._............ 8
4. Final Stabilization and Longteitn Stormwater Management.....•............................•••---....-----.--...._.....----.................. 8
5. Other Controls...............•--•........-----............-•-------.....--�--•-•----......__....._............._............_............................._............ 8
6. Inspection and Maintenance.............................•-••------.............................................---............._............._.................. 8
C. TERMS AND CONDITIONS......----�-•----•.................................................:.....•••--•..........................--�-----..........-------•--�-••-----•--••-- 8
1. General Limitations.............�--.... ............._..........••••--........._._..........._......._..._...._...--•---................_....... 8
......--•.............
2. Prohibirion of Non-stormwater Discharges...............................••---..........._..........._._.....................---..........._............ 9
3. Releases in Excess of Reportable Quantities..-•----••--�•-�---•-------------�•-----.................................._....---•....._..........._....... 9
4. Stormwater Management Plans.....--�.............•-----...............--•................._._.........._.........._...................--•...._.............. 9
a) Signatory Requirements.................................................................•--...._....................---...........---............ 9
b) SL�rMP Re��iew/Changes............................................................................•..........-------.......--•---......_....... 9
5. Inspections...................... .................------...._...............-•.••...:...------•----.....-�-•---�---•--..._.........__.................. 9
....................
a) Active Sites ................................................................................�--...........-.--•-...-•---....................._........._.. 9
b) Completed Sites...........................�---•-...........---...........-•-�---.....---......................._...._..._........---................. 10
c) Winter Conditions-•-----�.................�--�-•--....._......--••-•---............._.._.............._......................._._................. 10
6. Re ortin .................................................................... 10
Pg--...--••...............�-----..........--------�--..................._............_.........
7. SWMP Svbmitta]lipan Request...................�--._.........._.....---......._...................................._.............-�----....._............ 10
D. ADDITIONAL DEFINITIONS..........................•---.............._..........--�--•--......-•-�----.._.....---•--•�---...........----..............-•-•----......_...... 10
-2a-
TABLE OF CONTENTS(cont.)
£. GENERAL REQUIREMENTS......................... . .• ...........---.........................._...........-------.....•-•--.._......... 11
.. . . ...............................
l. Signatory Requirements...............................................�--............_...........•-•••-................._.........----............_.....--•-�--.. 11
2. Retention of Records..................................... .......---....-�--------........_..._........_..... 12
................................................�----..
PART II
A. MANAGEMENT REQUIREMENTS._.--•-•..............................................................................................•--................_........._._._ 12
1. Change in Discharge..................•••................_.. ......._............_............_......_...----.........-•----._..._......_ 12
............................
2. Special Notifications-Defmitions........................ ••......................._.........••------.......•---...._......._...... 12
.........................
3. Noncompliance Notification..........................................................................................................•••-•......_.............. 13
4. Submission of Incorrect or Incomplete Information-.--.--••.......................••---............................•••..._........................ 13
5. Bypass.....--•.............................................•---•-----.........-�---....._......._..............._.............._......•••-•................---............. I3
6. Upsets ...............•---........... _. ...............__..........................................----.............. 13
.. .....................................•-----•..........
7. Removed Substances............................. .........•••........................_............_... 14
.............................................................
8. Minimi�ation of Adverse Impact..................................................................................................•----....-•--••---......... 14
9. Reduction,Loss,or Failure of Treatment Facility.................••-_---........-...__......-....-.....-.....-.....-----...........-••--........�.. 14
1�. Proper Operation and Maintenance......................................................................................................................... 14
B. RESPONSIBILI'I'IES..............•---...---�--••-•-------........._. ..............................--•.........................----......_ . . 14
....................................
1. In ections and Ri ht to En ••.......................................................... 14
SP g try.........................•--............_._.........................
2. Duty to Provide Information.................................................................................................................................... ]5
3. Transfer of Ownership or Con�ol.................................••---........-•---........_........_..._........_...._.........................---....._.. 15
4. Modification, Suspension,or Revocation of Permit By Division.......................................................................... . 15
5. Permit Violations.......---•�---••................... .....---............_......._........._.....--••---....._.......... 16
....•--...-•-••...............................
6. Legal Responsibilities............................ .......................----.. 16
................•............_._....._..................._..........................
7. Severabili ......................................•--•----•-._...----•------.... 16
tY-......-•.....................••--•....................._........------.....----..........
8. Renewal Application............................... .........._.....--•._.._..............-.-•-••----...----••...._._.............. 17
....•-�..........................
9. Confidentiali .................................................�--._............_.._....... 17
ty...................................•••••............_..._.......---...--•- -
10. Fees............................. ......................---...._...................._..... 17
........................................................�•-----........---...........
11. Requuing an Individual CDPS Permit.................�----- •.._........................---......................_....-----••--•-..._................... 17
-2b-
P.ART I
Page 3
Permit No.COR-030000
PARTI
A. COVERAGE LTNDER THIS PERMIT
1. Authoriri�to Discharge
Under this permit,construction activities,including clearing,grading,and excavatron,are granted authorization to
discharge stormw�ater associated with construction activiries into waters of the state of Colorado_
a. Appiicable Sections: 'This permit is made up of several parts,not all of which apply to all permittees. The
permittee will be responsible for determining and then complying with the applicable secrions,depending upon
whether or not a Qualifying Local Program covers the site. For sites not covered by a Qaalifying Local Program,
all Parts of the permit except Part I.A.3 apply.
2. Industries Covered Under this Permit
a) Definitions:
1) Stormwater: Storinwater is precipitation-induced surface runoff.
2) Consnuction acrivitv: Construction acrivity includes clearing,grading and excavation activities.
Construction does not include routine maintenance performed by pubIic agencies, or their agents to maintain
original line and grade,hydraulic capaciry,or original piupose of the faciiity.
3) Small construction acrivitv: Stormwater discharge associated wlth small construcrion acrivity means the
discharge of stormwater from construcrion activities that result in land disturbance of equal to or greater than
one acre and less than five acres. Small construcbon activity also includes the disturbance of less than one
acre of total land area that is part of a larger common plan of development or sale,if the larger common plan
will ultimately disturb equal to or greater than one and less than five acres.
4) Qualifvine Locai Pro�rain: This permit includes conditions that incorporate quaIifying local erosion and
sediment control program(Qualifying Local Program)requirements by reference. A Qualifying Local
Program is a municipal stormwater program for stormwater discharges associated with small construction
activity that Itas been formally approved by the Division.
5) Other Defmirions: Definitions of additional terms can be found in Part I.D. of this permit.
b) Types of Activities Covered by this Permit: This permit may authorize ail new and existing discharges of
stormwater associated with construction activity. TIris includes stormwater discharges from areas that are
dedicated to producing earthen materials,such as soils,sand and gravel,for use at a single construction site. Tlus
permit also includes stormwater discharges from dedicated asphalt hatch plants and dedicated concrete batch
plants. This permit does not authorize the discharge of mine water or process water from such areas.
3. Permit CoveraQe Without Application—for small construction activities under a Q�xafifying Local Program onlv
If a construction site is within the jurisdiction of a Qualifying Local Program, the operator of the construcrion activity is
authorized to discharge stormwater associated with small construction activity under this general pernut without the
submittai of an application to the Division.
a) Applicable Sections: For sites covered by a Qualifying Local Program,only Parts 1.A.1, 1_A.2, 1.A3,I.C.1,
I.C.2,I.C.3,I.D and Part II of this permit,with the exception of Parts II.A.1,II.B.3,II.B.8,and II.B 10,apply.
b) Locat Agency Authority: This permit does not pre-empt or supersede the authority of loca]agencies to prohibit,
resti-ict, or control discharges of stormwater to storm drain systems or other water courses within their jurisdicrion.
PARTI
Page 4
Pecmit No. COR-030000
A. COVERAGE UNDER THIS PERMIT(cont.)
c) Permit Coverage Termination: When a site has been finally stabilized, coverage under this permit is
automatically temunated.
d) Compliance with Qualifying Local Program: A cons�uction site operator that has authorization to discharge
under this permit under Part I.A.3 shall cornply with the requirements of the Quatifying Local Program with
jurisdiction over the site.
e) Full Permit Applicability: The Division may require any owner or operator within the jurisdiction of a
Qualifying Local Program covered under this permit to apply for and obtain coverage under the fuIl requirements
of this pernut.The owner or operator must be notified in wnring that an application for full coverage is requued.
Vi'hen a permit certification under this permit is issued to an owner or operator that would otherwise be covered
under Part I.A_3 of this permit,the full requirements of this permit replace the requirements as per Part I.A3 of
tkus permit,upon the effecrive date of the permit certification. A site brought under the full requirements of this
permit must stil]comply with local stormwater management requirements,policies or guidelines as required by
Part'I.C.I.h of this Permit.
4. Apulication,Due Dates
a) Apptication Due Dates:At least ten days preor to the commencement of consti-uction activities,the operator of
the construction acrivity shall submit an application form as provided by the Division, with a certificarion that the
Stormwater Management Plan(SWMP)is complete.
One original compieted discharge permit applicarion shall be submitted,by mail or hand delivery,to:
Colorado Deparnnent of Public Health and Environment
Water Quality Con�ol Division
W QCD-P-B2
4300 Cherry Creek Drive South
Denver,Colorado 80246-1�30
b) Summary of Application: The appIicarion requires,at a minimum,the following:
1) 'I'he operator's name,address,telephone number,tax payer identification number(or employer identificarion
number), and the status as Federal,State,private,pubIic or other entity;
2) 1`Tame,county and location of the constrvction site,including the latitude and longitude to the nearest 15
seconds of the approximate center of the consmzction activity;
3) A brief descriprion of the uature of the construction activity;
4) The anticipated starting date of the project and the anricipated schedule of complerion
5) Estimates of the total area of the site,the area of the site that is expected to be disturbed,and the total area of
the larger common plan of development or sale to undergo disturbance;
6) The name of the receiving water(s),or the municipal separate storm sewer system and the ulrimate(i.e.,
named)receiving water(s);
7) Certificauon that the SWMP for the construcrion site is complete(see Part I.B.below); and
8) The signature of the applicant signed in accordance with Part I.E.1 of this permit�
5. Permit Certification Procedures
If the general permit is applicable to the applicant's operation,then a certification will be developed and the applicant
will be authorized to discharge stormw'ater under this general permit.
PARTI
Page 5
Permit No. COR-630000
A. COVERAGE LJNDER THIS PERMIT(cont.)
a) Request for Additional Information: The Division shall have up to ten days after receipt of the above
inforn�ation to request additional data and/or deny the authorization for any particular discharge. Upon receipt of
additional informarion,the Division shall have an addirional ten days to issue or deny authorization for the
particular discharge. (Norificarion of denial shall be by letter,in cases where coverage under an altemate general
permit or an individual permit is required,instead of coverage under this permit.)
b) Automatic Coverage: If the appficant does not receive a request for addirional informarion or a notification of
denial from the Division dated within ten days of receipt of the application by the Division,authorization to
discharge in accordance with the conditions of this permit shall be deemed granted.
c) Individual Permit Required: If,after evatuation of the application(or additional information,such as the
SWMP),it is found that this general permit is not applicable to the operation,then the application will be
processed as one for an individual permit. The applicant will be notified of the Division's decision to deny
certification under this general permit. For an individual pemut, addirional information may be requested,and 180
days will be required to process the application and issue the pernut.
d} Temporary Coverage: Notwithstanding Parts I.A.S.a-c, above,the Division reserves the right to temporarity
cover stormwater discharge from construction activity under general permits,even though individual permit
coverage may be more appropriate. �
Certification of these activities under a general pemiit does not in any way infringe on the Division's right to
revoke that coverage and issue an individual permit or amend an existing individual permit.
e} General vs.Individual Permit Coverage: Any owner or operator authorized by this permit may request to be
excluded from the coverage of this pernvt by applying for an individual CDPS permit. The owner or operator
shall submit an individual applicarion, with reasons supporting the request,to the Division at least I 80 days prior
to any discharge.
fl Local Agency Authority: Ttus pernut does not pre-empt or supersede the authority of local agencies to prohibit,
restrict,ar con�ol discharges of stormwater to sto:m drain systems or other water courses within theu jurisciiction.
6. Inactivation Notice
When a site has been finally stabilized in accordance with the SWMP,the operator of the facility must submit an
Inactivation Notice that is signed in accordance with Part I.E_l.of this peruut. The Inactivation Notice iorm is available
from the Division and includes
a) Pernut certification nurnber;
b) The pertnittee's name,address,telephone number;
c} Name, location,and county for the construcrion site for which the application is being submitted.
d) Certificarion that the site has been finally stabilized,and a description of the final stabilization method(s).
An inactivation form may not be required for small cons�uction acrivities if application was made for coverage with a
com�pletion date less than 12 months from the start of construcrion activity. In snch cases,pemut certification may be
authorized for a predetennined period from 3 to 12 months. The permit certification wilI include the automaric
expiration date for permit coverage. If permit coverage beyand that date is needed(i.e.,the site has not been fmally
stabilized),the permittee must submit an extension request form to the Division at least 10 days prior to the expiration
date.
7. Transfer of Permit
When responsibility for stormwater discharges at a cons�uction site changes from one individual to another,the
permittee shall submit a completed Notice of Transfer and Acceptance of Terms of a Construction General Stormwater
Discharge Peraut Cer[ification that is signed in accordance with Part I.E.1.of this pernnt. The Notice of Transfer form is
available from the Division and includes:
P.4RT I
Page 6
Permit No. COR-030000
A. COVERAGE LJNDER THIS PERMIT(cont.)
a) Permit certification number.
b) Name, locarion, and county for the construcrion site for which the application is being submitted.
c) The current permittee's name, address,telephone number and the status as Federal, State,private,public or other
entity.
d) The new permittee's name,address and teIephone number and the status as Federal, State,private,public or other
entity.
e) Certificarion that the new permittee has reviewed the permit and SWMP and accepts responsibility,coverage and
liability for the permit_
� Effective date of transfer.
If the new responsible party will not complete the transfer form,ti�e permit may be inactivated if the permittee has no
lega]respons�bility,through ownership or contract, for the construction activiries at the site. In this case,the new
operator would be required to obtain pernut coverage separately.
8. Permit ExD�ration Date
Authorization to discharge under th�s general pern-ut shall expire on June 30,2007. The Division must evaluate and
reissue this general permit at least once every five years and must recertify the applicant's authority to discharge under
the general permit at such time. Any permittee desiring continued coverage under the general permit must reapply by
Mazch 31,2007. T6e Division wi11 deterrrnne if the appIicant may continue to operate under the terms of the general
pemut. An individual pemut will be required for any facility not reauthorized to discharge under the reissued general
pernnt.
9. Individual Permit Criteria
Aside from the activity type,the Division may use other criteria in evaluating whether an individual permit is required
instead of this general perunt. This informarion may come from the application, SWMP,or addirional informarion as
requested by the Division,and includes,but is not limited to,the following:
a) the quality of the receiving waters(i.e.,the presence of downstream drinking water intakes or a high quality
fishery,or for preservation of high quality water);
b) the size of the consiruction site;
c) evidence of noncompliance under a previous permit for the operation;
d) the use of chemicals within the stormwater system
In addition,an individual permit may be required when the Division has shown or has reason to suspect that the
stormwater discharge may conhibute to a violarion of a water quality standard.
B. CONTENTS OF THE STORMWATER MANAGEMENT PLAN
The SWMP shall be prepared in accordance with good engineering,hydrologic and pollution control pracrices. (The SVVMP
need not be prepared by a registered engineer.) The main objective of the plan shall be to idenrify Best Management Pracrices
(BMPs)which when implemented will meet the terms and conditions of this permit(see Part I.G,below).
The plan shall identify potential sources of pollution(including sediment)which may reasonably be expected to affect tt�e
quaIity of stormwater discharges associated with construction activity from the facility. In addition,tiie plan shall describe and
ensure the implementation of BMPs which will be used to reduce the pollutants in stormwater discharges associated with
construction acrivity. Construction operations must implement the provisions of the SWMP required under this part as
a condition of this permit.
The SWMP shall inclt�de the following items,at a minimum:
PARTI
Page 7
Perrnit No.COR-030000
B. COI`TTENTS OF THE STORMWATER MANAGEMEI�'T PLAN(cont.)
1. Site Description
Each plan shall provide a description of the fol}owing:
a) A description of tt�e construction acrivity.
b) The proposed sequence for major acrivities.
c) Estimates of the total area of the site,and the area of the site that is expected to undergo cleazing,excavation or
grading.
d) An esrimate of the runoff coefficient of the site before and after consh-uction acriviries are completed and any
existing data describing the soil, soil erosion potenrial or the quality of any discharge from the site.
e} A description of the existing vegetation at the site and an esrimate of the percent vegetative ground cover.
� The location and description of any other potential pollution sources,such as vehicle fueling,storage of fertilizers
or chemicals,etc.
g) The location and description of any anricipated non-stormwater components of the discharge,such as springs and
tandscape urigation return flow.
h) The name of the receiving water(s)and the size,type and location of any outfall or,if the discharge is to a
municipal sepazate storm sewer,the name of that system,the location of the storm sewer discharge,and the
ultimate receiving water(s).
2. Site Map
Each plan shaIl provide a generalized site map or mags which indicate:
- construction site boundaries
- all azeas of soil disturbance
- areas of cut and fill
- areas used for storage of building materials,soils or wastes
- location of any dedicated asphalt or concrete batch plants
- location of major erosion con�ol facilities or structures
- springs,streams,wetlands and other surface waters
- boundaries of 100-year flood plains, if determined.
3. BMPs for Stormwater Pollution Prevention
The plan shall include a narrative description of appropriate controls and measures that will be implemented before and
dising construction activities at the facility.
The plan shall clearly describe the relationship between the phases of construction and the implementation and
maintenance of controis and measures. For example,which controls will be implemented during each of the following
stages of construcrion: clearing and grubbing necessary for perimeter con�ols,initiation of perimeter controls,remaining
clearing and grubbing,road�ading,storm drain installation, final grading,stabilization,and removal of control
measures.
The descriprion of controls shaIl address the following minimum components:
a) Erosion and Sediment Controls.
1) Structural Practices. A description of structural site management practices which will minimize erosion and
sedunent�ansport. Practices may include,but are not limited to: s�aw bales,silt fences,earth dikes,
drainage swales,sediment traps,subsurface drains,pipe slope drains,inlet protecrion,outlet protection,
gabions,and temporary or permanent sediment basins.
2) Non-Structural Practices. A description of interim and permanent stabilization practices, including site-
specific scheduling of the implementation of the practices. Site plans should ensure that existing vegetation
is preserved where possible and that disturbed areas are stabilized. Non-structural practices may include,but
are not Iimited to:temporary seeding,pecmanent seeding, mulching, �eotexriles,sod stabilization,vegetative
buffer s�ips,protection of�ees,and preservarion of mature vegetation.
PARTF
Page 8
Permit No.COR-030000
B. CONTENTS OF THE STORMWATER MANAGEMENT PLAN(cont.)
b) Materials Handlin�and Spill Prevention.
The SVS'MP shatl identify any procedures or significant materials(see definitions at Part I.D.)handled at the site
that could contribute pollutants to runoff. These could include sources such as: exposed storage of building
materials, fertilizers or chemicals;waste giles; and equipment maintenance or fueling procedures. Areas or
procedures where potential spilis can occur shall have spill prevention and response grocedures identified.
Measures to control stormwater pollu[ion from dedicated concrete batch plants or dedicated asphalt batch plants
covered by this cernfication,must be identified in the SWMP.
4. Final Stabilization and LonQterm Stormwater Manaeement
The plan shall include a description of the measures used to achieve final stabilization and measures to control pollutants
in storrnwatez discharges that will occur after constrt�ction operations have been completed.
Final stabilizarion is reached when al]soil disturbing acrivities at the site have been completed,and uniform vegetative
cover has been esiablished with a density of at least 70 percent of pre-disturbance]eveZs,or equivalent permanent,
physical erosion reduction methods have been er�loyed.
For purposes of this permit,establishment of a vegetative cover capable of providing erosion control equivalent to pre-
existing conditions at the site can be considered final stabilization. The permittee will be responsible for providing to the
Division the documentation to make this comparison. The Division may, afrer consultation with the permittee and upon
good cause,amend the final stabilization criteria for specific operations.
5. Other Controls
T�e plan shalt include a description of other measures to control potiutants in stormwater discharges,including plans for
waste disposal and limiring off-site soi]tracking.
6. Inspection and Maintenance
'I'he plan shall include a description of procedures to inspect and maintain in good and effective operating condition the
vegetation,erosion and sediment control measures and other protective measures ident�ed in the SWMP.
C. TERMS AND CONDITIONS
1. General Limitations
The following Iimitations shal]apply to a11 discharges covered by this permit:
a) Stormwater discharges from construction acrivities shaIl not cause or threaten to cause pollution,contamination or
degradahon of State waters.
b) Concrete wash water shall not be discharged to state waters or to storm sewer systems.
c) Bulk storage structures for petroleum prodncts and other chemicals sha(I have adequate protecrion so as to contain
all spills and prevent any spilled materiat fram entering StaEe waters.
d) No chemicals are to be added to the discharge unless permission for the use of a specific chemical is granted by
the Division. In granting the use of such chemicals,special conditions and monitoring may be addressed by
separate letter.
e) The Division reserves the nght to require sampling and tesring,on a case-by-case basis, in the event that there is
reason to suspect that compliance with the SWMP is a problem,or to measure the effecriveness of the BMPs in
removino pollutants in the effluent. Such monitoring may include Whole Effluent Toxicity testing.
PARTI
Page 9
Permit No. COR-030000
C. TERMS AND CONDTTIONS(cont.)
� All wastes composed of building materials must be removed from the site for disposai in licensed disposal
facilities. No building material wastes or unused building materials shall be buried,dumped,or discharged at the
site.
g) Off-site vehicle tracking of sediments shall be minimized.
h) All dischargers must comply with the lawful requirements of municipaliries,counties,drainage districts and other
local agencies regarding any discharges of stormwater to storm drain systems or other water courses under their
jurisdiction,including applicable requirements in municipal stormwater management programs developed to
comply with CDPS permits. Dischargers must cornply with local stormwater management requirements,policies
or guidelines including erosion and sediment control.
2. Prohibition of Noo-Stormwater Dischar�es
a) Except as provided in paragraph b,below, all discharges covered by this permit shall be composed entirely of
stormwater. Discharges of material other than stormwater must be addressed in a separate CDPS permit issued
for that discharge.
b) Discharges from the following sources that are combined with stormwater discharges associated with construction
activity may be authorized by this pernut,provided thar the non-stormwater component of the discharge is
idenrified in the SWMP(see Part I.B.l.g of this pernvt):
-fire fighting activities -landscape irrigation return flow
-springs
3. Releases in Excess of Reportable Quantities
This permit does not relieve the permittee of the reporting re4uirements of 40 CFR 110,40 CFR 117 or 40 CFR 302.
Any discharge of hazardous material inust be handled in accordance with the Division's Norificarion Requirements(see
Part II.A3 of the pemut).
4. Stormwater Management Plans
Prior to commencement of cons�uction,the stormwater management plan(SWMP)shall be implemented for the
construction site covered by this permit.
a) Signatory Requirements: The plan shall be signed in accordance with Part I.E.1.,with one retained on site.
b) SR'MP Review/Changes: The permittee shall amend the plan whenever there is a significant change in design,
construction, operarion, or maintenance, which has a significant effect on the potential for the discharge of
poIlutants to the waters of the State,or if the SVJMP proves to be ineffective in achieving the general ob}ectives of
controlling pollutants in stormwater discharges associated with construction activity.
S. Inspections
a) Active Sites-For sites where construcrion has not been completed,the permittee shall make a thorough inspection
of their stormwater management system at least every 14 days and after any precipitation or snowmelt event that
causes surface erosion.
1) The construction site perimeter, disturbed azeas and areas used for material storage that are exposed to
precipitation shall be inspected for evidence of,or the potential for,pollutants entering the drainage system.
Erosion and sediment controI measures idenrified in the SWMP shall be observed to ensure that they are
operating correcdy. _
PART I
Page 10
Permit No.COR-030000
C. TERMS AND CONDITIONS(cont.)
2) Based on the results of the inspection,the descnption of potentia]pollutant sources,and the pollution
prevention and control measures that are identified in the SWMP shall be revised and modified as appropriate
as soon as practicable after such inspection. Modificatious to control measures shall be implemented in a
timely manner,but in no case more than 7 calendar days afrer the inspection.
3) The operator shall keep a record of inspecrions. Any incidence of non-compiiance,such as uncontrolled
releases of mud or muddy water or"measurable quantities of sediment found off the site,shall be recorded
with a brief explanation as to the measures taken to prevent future violations,as well as any measure taken to
clean up the sediment that has left the site. After adequate measures have been taken to correct any probiems,
or where a report does not identify any incidents of non-compliance,tkte report shall contain a signed
certification indicating the site is in compIiance. This record shall be made available to the Division upon
request.
b) Completed Sites-For sites where all construcrion achvities are corrmleted but fina!stabilization has not been
achieved due to a vegetative cover that has been planted but has not become established,the permittee shall make
a thorough inspecrion of their stormwater management system at least once every month. When site condirions
make this schedule imptactical,permittees may petition the Division to grant an altemate inspecrion scbedule.
These inspections must be conducted in accordance with paragraphs I),2),and 3)of Part I.C.S.a. above.
c) Winter Conditions-Inspections,as described above in a)and b),will not be required at si[es where snow cover
exists over the entire site for an extended period, and melting conditions do not exist. This exemption is applicable
only during tt�e period where melring condirions do not exist. Regular inspections,as described above,are
required at all other times.
6. Reportin�
No regular reporang requirements are included in this permit;however,the Division reserves the right to request that a
copy of the inspection reports be submitted.
7. SWMP Submittal Upon Request
Upon request,the permittee shall submit a copy of the SWMP to the Division,EPA or any local agency in charge of
approving sediment and erosion plans, grading plans or sto�water management plans.
All SWMPs required under this permit are considered reports that shall be available to the public under Section 308(b)of
the CWA. The owner or operator of a facility with stoiznwater discharges covered by trus pemut shall make plans
available to members of the public upon request,unless the SWMP has been submitted to the Division. However,the
permittee may claim any portion of a SWMP as confidential in accordance with 40 CFR Part 2.
D. ADDITIONAL DEFi1VITIONS
For the purposes of this pernvt:
1. BAT and BCT: (Best Available Technology and Best Convenrional Technology}Technology based federal water
quality requirements covered under 40 CFR subchapter N.
2. Best management practices(BMPs): schedules of activities,prohibitions of practices,maintenance procedures,and
other management practices to prevent or reduce the pollution of waters of the State. BMPs also inclvde treatment
requirements,operating procedures, and practices to con�ol site runoff,spillage or leaks,waste disposal, or drainage
from material storage.
3. Dedecated asphalt plants and concrete plants: portable asphalt plants and concrete plants that are located on or
adjacent to a construction site and that provide materials only to that specific cons�uction site.
PART 1
Page 11
Permit No. COR-030000
D. ADDITIONAL DEFIl�TITIONS(cont.)
4. Final stabilization: when all soil disturbing activiries at the site have been completed, and uniform vegetarive cover has
been established with a deusity of at least 70 percent of pre-disturbance levels,or equivalent permanent,physical erosion
reduction methods have been employed. For purposes of this permit,establishment of a vegetative cover capable of
providing erosion control equivalent to pre-existing conditions at the site wiil be considered final stabilization.
5. Municipal storm sewer system: a conveyance or system of conveyances(including:roads with drainage systems,
municipal streets,catch basins,curbs,gutters,ditches,man-made channels,or storm drains),owned or operated by a
State,city,town,county, district,or other pubiic body(created by state law),having jnrisdiction over disposal of sewage,
industrial waste,stormwater,or other wastes;designed or used for collecting or conveying stormwater.
6. Operator: the individual who has day-to-day supervision and control of acrivities occurring at the construction site. Tlus
can be the owner,the developer,the general contractor or the agent of one of tk�ese parties,in some circumstances. It is
anticipated that at different phases of a construcrion project,different types of parties may sarisfy the defmirion of
'operator'and that the permit may be transferred as the roles change.
7. Outfalt: a point source at the point where stormwater leaves the cons�uction site and discharges to a receiving water or
a stormR�ater collection system.
8. Part of a larger common plan of development or sale: a contiguous area where multiple separate and distinct
construction activities may be taking place at different times on different schedules under one plan.
9. Point source:any discernible, confined and discrete conveyance from which pollutants are or may be discharged. Point
source discharges of stormwater result from structeires which increase the imperviousness of the ground which acts to
collect runoff,with runoff being conveyed along the resulting drainage or grading pattem.
10. Process water: any water which during manufacturing or processing,comes into contact with or results from the
production of any raw materiai,intermediate product,finished product,by product or waste product. This definition
includes mine drainage.
1 I. Receiving Water: any water of the State of Colorado into wluch stormwater related to cous�uction activiries discharges.
12. Runoff coefficient:the fraction of total rainfall that will appear as runoff.
13. Significant Materials include but are not limited to:raw materiais; fuels;materials such as metailic products; hazardous
substances designated under section 101(14)of CERCLA;any chemicai the facility is required to report pursuant to
section 313 of tide III of SAR.A; fertilizers;pesdcides;and waste products such as ashes,slag and slvdge that have the
potential to be released��th stormwater discharge.
14. Stormwater:precipitation-induced surface runoff.
15. VVaters of the state of Colorado: any and al]surface waters that are contained in or flow in or through the state of
Colorado. This definition includes all water conrses,even if they are usually dry.
E. GENERAL REQUIREMENTS
1. Si�►zatorv Requirements
a) All reports required for subrruttal shall be siened and certified for accuracy by the permittee in accordance with the
follov��ing criteria: -
1) In the case of corporations,by a principal executive officer of at least the level of vice-president or his or her
duly authorized representative,if such representative is responsible for the overall operarion of the facility
from wtvch the discharge described in the form originates;
2) In the case of a partnership,by a general partner;
PARTI
Page I2
Permit No. COR-030000
E. GENERAL REQUIREMENTS(cont.)
3) In the case of a sole proprietorship,by the proprietor;
4} In the case of a municipal,state,or other public facility,by either a principa]executive officer,ranking
elected official,or other duly authorized employee.
b) Changes to authorization. If an authorizatioc �der paragxaph a)of this section is no longez accurate because a
different individual or posirion has responsibil�:. ior the overall operation of the faciiity,a new authorization
sarisfying the requuements of paragraph a)of this section must be submitted to the Division,prior to or together
with any reports,infornzation,or applicarions to be signed by an authorized representative.
c) Certification. Any person signing a document under pazagraph a)of this secrion shall make the following
certification:
"I certify under penalty of law that this document and all attachments were prepared under my direction or
supervision in accordance with a system designed to assure that qualified personnel properly gather and
evaluate the information submitted. Based on my inquiry of the person or persons who manage the system,
or those persons duectly responsible for gathering the inforniation,the information submitted is,to the best of
my lrnowledge and belief,true, accurate,and complete. I am aware that there are significant penalties for
submitting false information,including the possibility of fine and imprisonment for lrnowing violations."
2. Retention of Records
a) The permittee shall retain copies of the SWMP and all reports required by this permit and records of all data used
to complete the applicanon to be covered by this permit,for a period of at least three years from the date that the
site is finally stahilized.
b) The permittee shall retain a copy of the SWMP required by this permit at the construction site from the date of
project initiation to the date of final stabilization,unless another}ocation,specified by the permittee,is approved
by the Division.
PART II
A. MANAGEMENT REQUIREMENTS
1. ChanEe in Dischar�e
The pernvttee shall inform the Division(Permits Unit)in writing of any intent to significantly change activiries from
those indicated in the permit application(this does not include changes to the SWMP). Upon request,the permittee shali
fumish the Division with such plans and specifications which the Division deems reasonably necessary to evaluate the
effect on the discharge and receiving stream The SWMP shall be updated witnin 30 days of the changes.
The permittee shall submit this norice to the Division within two weeks after making a determination to perform the type
of activity referred to in the preceding paragraph.
Any discharge to the waters of the State from a point source other than specifically authorized by this permit is
prolvbited.
2. Special Notifications-Definitions
a) Spiil: An unintentional release of solid or liquid material which may cause pollution of state w•aters.
b) Upset: An exceptional incident in which there is unintenrional and temporary noncompliance with permit effluent
limitations because of factors beyond the reasonable control of the pemvttee. An upset does not include
noncornpliance to the extent caased by operational error, improperly designed treatment faciIities,inadeqaate
treatment facilities,lack of preventative maintenance,or careless or irnproper operation.
PART II
' Page 13
Permit No.COR-030000
A. MANAGEMENT REQUIREMENTS(cont.)
3. Noncompliance Notification
a) If, for any reason,the permittee does not comply with or will be unable to coinply with any pemut limitations,
standards or permit requirements specified in this permit,the permittee shall,at a minimum,provide the Water
QuaIity Control Division and EPA with the follawing informabon:
1) A descriprion of the discharge and cause of noncompliance;
2) The period of noncompliance,including exact dates and times and/or the anticipated time when the discharge
will return to compliance;and
3) Steps being taken to reduce,elirrnnate,and prevent reczurence of the nonco�lying discharge.
b) 'I'he permittee shall report the fotlowing instances of noncompliance orally within twentv-four(24)hours from the
time the permittee becomes aware of the noncompIiance,and shall mail to the Division a written report within five
(51 da�after becoming aware of the noncompliance(unless otherwise specified by the Division):
1) Any instance of noncompliance which may endanger health or the environment;
2) Any spill or discharge of oi�or other substance which may cause pol}ution of the waters of the state.
c) The pernuttee shall report all other instances of non-compliance to the Division within 30 days. T'he reporrs shall
contain the information listed in sub-paragraph(a)of this section.
4. Submission of Incorrect or Incomplete Information
Where the permittee failed to submit any relevant facts in a permit applicarion,or submitted incoirect information in a
pernut application or report to the Division,the permittee shall promptly submit the relevant applicarion informarion
which was not submitted or any additional information needed to correct any erroneous information previously
submitted.
5. Bvaass
'I'he bygass of trea�ent facilities is generally protubited.
6. liRSets
a) Effect of an Upset
An upset consritutes an affirmative defense to an action brought for noncompliance with permit limitations and
requirements if the requuements of paragraph b of tlus section are met. (No determination made during
administrative review of claims that noncom.pliance was caused by upset,and before an acrion for noncompliance,
is final adminis�ative action subject to judicial review.)
b} Conditions Necessarv for a Demonsti-ation of Unset
A permittee who wishes to establish the affirmative defense of ugset shal]demonstrate through proper3y signed
contemporaneous operating logs,or other relevant evidence that:
1) An upset occurred and that the permittee can identify the specific cause(s)of the upset;
2) T'he pernzitted faciIity was at the time being properly operated;
3) The permittee submitted notice of the upset as required in Part II.A3. of this germit(24-hoar notice);and
PART II
Page I4
Pernvt No.COR-03000d
A. MANAGEMENT REQI_JIREMENTS(cont.)
4) The permittee compiied with any remedial measures required under Section 122.7(d)of the federal
regulations.
c) Burden of Proof
In any enforcement proceeding the permittee seeking to establish the occurrence of an upset has the burden of
proof.
7. Removed Substances
Solids,sludges, or other pollutants removed in the course of treatment or control of wastewaters shall be properly
disposed of in a manner such as to prevent any pollutant from such materials from entering waters of the State.
8. Minimization of Adverse Impact
The permittee shatl take all reasonable steps to minim;�e any adverse impact to waters of the State resulring from
noncompliance with any effluent limitations specified in this permit,including such accelerated or additional monitoring
as necessary to determine the nature and impact of the noncomplying discharge.
9. Reduc6on Loss or Fai}ure o[Treatment Facitity
The peruuttee has the duty to halt or reduce any activiry if necessary to maintain compIiance with the pernut
requirements. Upon reduction,loss,or failure of the treatment facility,the perauttee shall, to the extent necessary to
maintain compliance with its permit,control producrion,or all discharges,ar both until the facility is restored or an
altemative method of treatment is provided.
It shall not be a defense for a permittee in an enforcement acrion that it would be necessary to halt or reduce the
peruutted activity in order to maintain compliance with the condirions of this permit.
10. Proper Overation and Maintenance
The permittee shall at all times properly operate and maintain all facilities and systems of treatment and control(and
related appurtenances) which are installed or usec!by the permittee to achieve compliance with the canditions of this
permit. Proper operation and maintenance includes effective performance,adequate funding,adequate operator staffmg
and trairung,and adequate laboratory and process controls,including appropriate quality asseuance procedures. This
provision requires the operarion of back-up or auxiliary faciiities or similar systems only when necessary to achieve
compliance with tbe conditions of the permit.
B. RESPONSIBILITIES
1. Inspections and Ri�ht to Entry
The permittee shall allow the Director of the State Water Quality Con�ol Division,the EPA Regional Adminis�ator,
andlor their authorized representarive,upon the presentation of credentials:
a) To enter upon the permittee's premises where a regulated facility or activity is located or in which any records are
required to be kept under the terms and conditions of this permit;
b) At reasonable times to have access to and copy any records required to be kept under the terms and conditions of
this pemvt and to inspect any monitoring equipment or monitoring method required in the permit; and
c) To enter upon the permittee's premises to investi�ate, within reason,any actual, suspected,or potential source of
water pollution,or any violation of the Colorado Water Quality Control Act. The investigahon may include,but is
not limited to,the following: sampling of any discbarge and/or process waters,the tak�ng of photographs,
interviewing pem�ittee staff on alleged violarions,and access to any and all facilities or areas within the permittee's
premises that may have any effect on the discharge,permit, or alleged violation.
. P.ART II
Page 15
Permit No.COR-030000
B. RESPONSIBILITIES(cont.}
2. Dutv to Provide Information
The pecmittee shall fumish to the Division,within a reasonable time, any information which the Division may request to
deterinine whether cause exists for modifying,revoking and reissuing,or inacrivating coverage under this permit, or to
detennine compIiance with this permit. The permittee shalt also fumish to the Division,upon request, copies of records
required to be kept by this permit.
3. Transfer of Ownershia or Control
Certification under this pemut may be transferred to a new permittee if:
a) The current permittee norifies the Division in writing when the transfer is desired;and
b) The notice includes a written agreement between the existing and new permittees containing a specific date for
�ansfer of pernut responsibility,covenge and Iiability between them;and
c) The current permittee has met all fee requirements of the State Discharge Pemut System Regulations,Section
61.15.
4. Modification Suspension or Revocation of Permit Bv Division
All permit modification,inactivation or revocarion and reissuance actions shall be subject to the requirements of the State
Discharge Permit System Regulations,Secrions 61.5{2),6L�(3),61.7 and 61.15,5 C.C.R_ 1002-61,except for minor
modifications.
a) This perurit,and certification under this permit,may be modified,suspended,or revoked in whole or in part during
iu term for reasons determined by the Division including,but not limited to,the following:
I) Violation of any tenns or conditions of the permit;
2) Obtaining a permit by misrepresentation or failing to disclose any fact which is material to the granting or
denial of a perrnit or to the establishment of tem�s or conditions of the permit;
3) Materially false or inaccurate statements or information in the application for the permit;
4) Promulgarion of toxic effluent standards or prolvbitions(including any schedule of compliance spec�ed in
such effluent standard or prohibition)which are established under Section 307 of the C}ean Water Act,where
such a toxic pollutant is present in the discharge and such standard or prohibition is more stringent than any
limitation for such pollutant in this pemut.
b) This pernnt,or certificarion under this permit,may be modified in whole or in part due to a change in any
condition ttzat requires either a temporary or permanent reduction or elimination of the permitted discharge,svch
as:
1) Promulgation of Water Quality Standards applicable to waters affected by t�e pernutted discharge; or
2) Effluent limitations or other requirements applicable pursuant to the State Act or federal requirements;or
3) Control regulabons promulgated;or
4) Data submitted pursuant to Part I.B or Part I.C.1 indicates a potential for vialation of adopted Water Quality
Standards or stream classifications.
PART II
Page 16
Permit No. COR-030000
B. RESPONSIBILITIES(cont.)
c) This permit,or certificarion under this pernui,may be modified in whole or in part to include new effluent
limitations and other appropriate conditions where data submitted pursuant to Part I indicates that such effluent
limitations and conditions are necessary to ensure compliance with applicable water quality standards and
protection of classified uses.
d) At the request of the peimittee,the Division may modify or inactivate certification under this permit if the
following conditions are met
1) In the case of inactivation,the permittee norifies the Division of its intent to inactivate the certification,and
certifies that the site has been finally stabilized;
2) In the case of inactivation,the permittee has ceased any and all discharges to state waters and demonstrates to
the Division there is no probability of further uncontrolled discharge(s)wbich may affect waters of the State.
3) The Division finds that the permittee has shown reasonable grounds consistent with the Federal and State
statutes and regulations for such modification,amendment or inactivation;
4) Fee requirements of Section 61.15 of State Discharge Permit System Regulations have been met;and
5) Requirements of pubIic notice have been met.
For small consiruction sites covered by a Qualifying Local Program,coverage eu►der this permit is automarical]y
terminated when a site has been final}y stabilized.
�. Permit�'iolations
Failure to comply with any tercns and/or conditions of this permit shaIl be a violation of this permit
Dischargers of stormwater associated with industrial activity,as defined in the EPA Stormwater Regularion(40 CFR
122_26(b)(14),which do not obtain coverage under this or ather Colorado generai permits, or nnder an individual CDPS
peimit regulaung industrial stormwater,will be in violation of the federal Clean Water Act and the Colorado Water
Quality Con�oi Act,25-8-101. Failure to camply with CDPS pemut requuements will also coastitute a violation. Civil
penalties for such violations may be up to$10,000 per day,and crimina]pollution of state waters is punishable by fines
of up to$25,000 per day.
6. LeQal Responsibilities
Tl�e issuance of this permit does not convey any property or water rights in either real or personal property,or stream
flows,or any exciusive privileges,nor does it authorize any injury to private property or any invasion of personal rights,
nor any infringement of Federal, State or]ocal lau�s or regulations.
Nothing in this permit shall be construed to preclude the insriturion of any legal action or relieve the permittee from any
responsibilities, liabiliries,or penalries to which the permittee is or may be subject to under Section 311 (Oil and
Hazardous Substance Liability)of the Clean Water Act
?. Severabilitv
The provisions of this permit are severable. If any provisions of this permii,or the application of any provision of this
permit to any circumstance, is held invalid,the application of such provision to other circurnstances and the application
of the remainder of this permit shall not be affected.
�
PART II
Page 17
Permit No. COR-Q30000
B. RESPO?�TSIBILITIES(cont.)
8. Renewal Application
If the permittee desires to continue to discharge, a permit renewal applicarion shalI be submitted at least ninety(90)days
before this pernvt expires. If the pernuttee anricipates that there will be no discharge after the expirarion date of this
pezmit,the Division shou]d be promptly norified so that it can inacrivate the certification in accordance with Part
II.B.4.d.
9. Confidenrialitv
Except for data determined to be confidenrial under Section 308 of the Federal Clean Water Act and Regulations for the
State Discharge Permit System 61.5(4), all reports prepared in accordance with the terms of this permit shall be
available for public inspecrion at the offices of the Division. The pernuttee must state what is confidential at the rime of
submittal.
Any information relating to any secret process,method of manufacture or production,or sales or marketing data which
has been declared confidential by the permittee,and which may be acquired,ascertained, or discovered,whether in any
sampling investigation,emergency investigation, or otherwise,shall not be publicly disclosed by any member,o�cer, or
employee of the Commission or the Division,but shall be kept confidential. Any person seeking to invoke the protecrion
of this section shall bear the burden of proving its applicabifity. This section shall never be interpreted as prevenring full
disclosure of effluent data.
10. Fees
The permittee is required to submit payment of an ammual fee as set forth in the Water Quality Control Act. Failure to
submit the required fee when due and payable is a vio}ation of the permit and will result in enforcement action pursuant
to Secrion 25-8-601 et. seq.,C.R.S. 1973 as amended.
11. Rrquirin an Individual CDPS Permit
The Director may require any owner or operator covered under this pemut to apply for and obtain an individual CDPS
permit i£
a) The discharger is not in compliance with the condirions of this general permit;
b) Conditions or standards have changed so that the discharge no longer qualifies for a general pemvt; or
c) Data become available which indicate water qnality standards may be violated.
The owner or operator must be notified in writing that an application for an individual CDPS permit is required. When
an individual CDPS pernvt is issued to an owner or operator otherwise covered under this General Perrnit,the
applicabiIity of the general permit to that owner or operator is automatically inacrivated upon the effective date of the
individual CDPS permit.
COLOR4D0 DEPARTMENT OF PUBLIC KEALTH AND ENYIRONME'NT
Water Quality Control Division
Yf�QCD-P-B2
4300 Cherry•Creek Drive South
Denver, Colorado 8024b-1530
RA770NALE
STORMWATER DISCHARGESASSOC7.4TED WTTH
CONSTR UCTIDN.4 CTIVITY
GENERAL PERMIT IN COLORADO
SECOND RENEWAL
COLORADO DISCHARGE PERMIT NUMBER COR-030000
CONTENTS PAGE
L Introduction 1
II. Background z
III. Stormwater Discharges,4ssociateci with
Construction,4ctivity 3
IV Coverage Under this Permit 4
V. Application and Certification 4
l�I. Qualifying Local Programs 4
VII. Terms and Conditions of Permit 5
VIII. Changes Made After Public Norice 7
I. INTROD UCTION
This permit is for the regulation ofstormwater runofffrom construction activities. The term "construction activity"includes
clearing,grading and excavation operations. "Stormwater"is precipitation-induced surface runoff This Rationale wi[I
explain the background of the Stormwater program, activities which are covered under this permit, how to apply for coverage
under this permit, and the requirements of this permit.
The jorms discussed in the Rationale and Per►nii are available on 1he Division's website at:
http://wrvw.cdphe.state.co.us/wq/permitsunidwqcdpmt html
A. ChanQes in this General Permit
Several notable changes from the previous General Permit for Construction Activities have been incorporated into this
permit. Most of the changes are related to the Phase II revision to fhe stormwater regulation in the Colorado
Discharge Permit Systern Regulations(SCCR 1002-61), effective March 2, 2001. Sign�cant changes are listed below:
1. Permit coverage is now reguired for construction sites that disturb 1 to 5 acres(i.e.,small construction
activities). A1lowances have been made for small construction activities to comply x�ith the requirements of a
Division-approved Qualifying Local Program(refer to section VI belorv for a discussion of Qual�ing Local
Programs)in place oJmany specific requirements in the Permit, including requirements to submit an
application, inactivation notice, and fees to the Division. Refer to Part I.A.3 of the Permit and section VII.A of
the Rationale for more details.
2. The requiremenzs to submit with the application the Township, Range, section and quarter section of a site and
a lisf oJany other environinental permits for the site have been removed.
3. Inactivation requirements have been changed to allow srnall construction activities that submit applications
indicating a completion date 12 months or less from the start of construction activity to be authorized for a
predetermined period from 3 to 12 months. The permit certification will include the automatic expiration date for
permit coverage. This expiration date will be in place oJthe require.nent to submit an fnactivation Notice. If
permir coverage bevond the expiration date is needed(i.e., the site has not been finally stabilized), the permittee
must submit an extension request form ro the Division at least IO days prior ro the expiration.
COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT, Water Quality Control Division
Rationale-Page 2. Permir No. COR-030000
I. INTRODUCTION(cont.)
4. The Rationale discussion on the Ezemptions for Smal!Municipalittes(Section III.B)has been changed to
include the March 10, 2003 deadline forpermit coverage for municipally-owned inctustries. This did not involve
any changes to the permit.
II. BACKGROUND
.4s required under the Clean Water Act amendments of 1987, the Environmental Protection Agencv(EP.4)has established a
framework for regulating municipal and industrial stormwater discharges. This framework is under the National Pollutant
Discharge Elimination System (NPDES)program (Note: The Colorado program is referred to as the Colorado Discharge
Pe�it System, or CDPS, insteac�of NPDES). The Water Ouality Control Division("the Division')has stormwater
regulations(SCCR 1002-61)in place. These regularions require specific types of industrial facilities that discharge
stormwater associated with industrial activity(industrial stormwater), to obtain a CDPS permit for such discharge. The
regulations specifzcally include construction activities that disturb one acre of land or more as industrial facilities.
Construction activities that are part of a larger common plan of development which disturb one acre or more over a period of
time are also included.
14. General Permits
The Water Quality Control Division (the Division')has determined that the use of general permiu is the appropriate
„
procedure for handling the thousands of industria!stormwater applications within the State.
B. Permir Requirements
This permii does not require submission of effluent monitoring data in the permit application or in the permit itself. It
is believed that a fully implemented Stormwater Management Plan(SWMP)shoultl be su�cient to control water
_ quality impacts.
The permit requires dischargers to control and eliminate the sources ofpollutants in stormwater through the
development and implementation of a SWMP. The plan must include Best Managemerst Praciices(BMPs), which will
include pollution prevention and source reduction rneasures. This will constitute BAT and BCT and shou�d achieve
compliance with water quality standards. The narrative permit requirements include prohibitions against discharges
of non-stormwater(e.g.,process water). Refer to Part I.C.2 of the permit.
In addition, as a condition of this permit, the permittee is required to pay the annual fee as described in the Water
Quality Control Act. Failure to submit the required fee when due and payable is a violation of the permit and will
result in enforcement action as discussed below. Permittees will be billed for the initial permit fee within a few weeks
of permit issuance.
Some construction activities may be required to comply with a Qual�ing Local Program in place of ineeting several
of the specifzc requirements in this permit. Sites covered by a Qualifying Local Program may not be required to submit
an application for coverage or a notice of inactivation and may not be required to pay the annual fee. Refer to Section
VII.A of the Rationale for further information.
C. Violations/Penalries
Dischargers nf stormwater associated with industrial activity, as defzned in the Regulations for the State Discharge
Permit System (SCCR 1002-61), which do not obtain coverage under this or other Colorado general permits, or under
an individual CDPS permit regulating industrial stormwater, will be in violation of the Federal Clean Water Act and
the Colora�lo Water Ouality Control Aci, 25-8-101. For facilities covered under a CDPS permit,faiture to comply
with any CDPS permit requirement consritutes a violation. Civil penalfies for violations of the Act or CDPS permit
requirements may be up to.SIO,000 per day. Criminal pollution of state waters is punishable by fines of up to.Sl,i,000
per day.
COLOR�IDO DEPARTMENT OF PUBLIC HEALTH AND ENl'IRONMENT, Water Quality Control Division
Rationale-Page 3. Permit No. COR-030000
IIL STORMWATER DISCHARGESASSOCI,4TED WITH CONSTRUCTIONACTIVITY
The Stormwater regulations require that stormwater discharges associated with certain industrial activities be covered under
the permit program. Construction activity that disturbs one acre or more during the life of the project is specifically included
in the Iisted industrial activities.
A. Construction Activity
Construction activity includes cleanng,grading and excavation activities. Constructian does not include roukne
maintenance performed by public agencies, or their agents to maintain onginal line and grade, hydraulic capacity,
or origina!purpose of the facility.
Definitions of additional terms can be found in Part I.D of the Permit.
Stormwater t�ischarges from construction activity reguire permit coverage, except for operations that result in the '
disturbance of less than one acre of total land area which are not part of a larger commors plan of development or
sale. A larger common plan of development or sale is a contiguous area where multiple separate and disrinct
construction activities may be taking place at different times on different schedules under one p1an.
B. Types o(Activities Covered
This permit is intended to cover most new or existing discharges composed entirely of storniwater from construction
activities that are required by State regulation to obtain a permit. This includes stormwater discharges associated with
areas that are dedicated to producing earthen materials,such as soils, sand, and gravel,for use at a single
construction site. These areas may be located at the construction site or at some other location. Thu permit does not
ar�thorize the discharge of mine water or process water from such areas.
This permit also includes stormwater ttischarges associated with dedicated asphalr planZs ancl concrete planu located
at the construction sites.
C. Tvpes ofActivities NOT Covered
This permit does not cover stormwater discharged from construction sites that is mixed with stormwater from other
rypes of industrial activities, or process water of an}�kind. Other types of industrial activities that require stormwater
discharge perrnits pursuant to different sections of the regulations(Regulation 5 CCR 1002-61, Section 61.?/e)(iii)(A-1,
K)J, are not covered by this permit.
Thu perrrit also does not cover the discharge ofprocess water. Ijthe consrruction activity encounters groundwater, a
Construction Dewatenng Discharge Permit(Permit Number COG-070000J must also be obtained in order to
discharge this groundx�ater from the excavation site. ,4n application for this permit can be obtained from the Division
at the ad�lress listed in Part I.A.4.a of the Permit.
D. Exemptions for Sma11 Municipalities
The Intermodal Surface Tra�zsporiation E�ciencv Act of 1991 (Section 1068(c))added an exemption to the stormwater
regulations for municipalities wtth less than ]D0,000 population. The ternt "municipality"includes cities, towns,
counties,special districts or any entity created by or pursuant to State law.
Stormwater discharges associatec�with construction activity for facilities or siter that are owned or operated by a
small municipalit��are not required to apply for or obtain a stormwater permit until March 10,2D03. (Note: This
exemption does not apply to other,privately owned construction sites within the same small municipality.J
COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT, Water Quality Control Ditizsion
Rationale-Page 4. Permit No. COR-030000
IV. COVERAGE UNDER THIS GENERAL PERMIT
Under£his generalpermit, operators of stornzwater discharges associated with construction activity may be granted
authorization to discharge stormwater into waters of the State of Colorado. This includes stormwater discharges associated
with industrial activity from areas that are dedicated to producing earthen materials, such as soils, sand and gravel,for use
at a single construchon site, and dedicated asphalt plants and dedicated concrete plants.
This permit does not pre-empt or supersede the authority of local agencies to prohibit, restrict or control discharges of
stormwater to storm drain systems or other water courses within their jurisdiction.
Authorization to discharge under the permit requires submittal of a completed applicateon form and a certif cation that the
SWMP is complete, unless the site is covered by a Qual�ing Local Program. Upon receipt of all required information, the
Division may allow or disallow coverage under the general permit.
Y. APPLICATIONAND CERTIFICATION
�1t least ten days prior to the commencement of construction activities(i.e.;the initial disturbance of soils associated with
clearing,grading, excavation activities, installation of structural BMPS, or other activities), the operator of the construction
site sha11 submit an original completed application which includes the signed certlfication that the SWMP is complete. In
order to avoid confusion during processing, original signatures are required for the applicarion to be considered complete.
For small consmection sites only, if the site is covered by a Qual�ing Local Program (see below),submittal of an
application is not required.
For the purpose of this permit, the "operator"is the person who has day-to-day contro!over the project. This can be the
owner, the developer, the general contractor or the agent of one of these parties, in some circumstances. .4t different times of
a construction project, different types of parties may satisfy the def nition of'operator'and the cert�cation may be
transferred as roles change.
(Note- Under the Federal regulations, this application process is referred to as a Notice of Intent, or NOI. For internal
consistency with its current program, the Division will continue to use the term "application.'�An outline of tne permit
application requirements is found in the permit at Part L.4.4.b. �
If this general permit is applicable, then a certification will be developed and the applicant will be certif ed under this
general permit.
VI. QUALIFYING LOCAL PROGRAMS
For stormwater discharges associated with small conshuction activity(i.e., one to f ve acre sites), the permit includes
conditions that incorporate approved qualifying local erosion and sediment control program(Qualifying Local Program)
requirements by reference..4 Qualifying Local Program is a municipal stormwater program for stormwater discharges
associated with small construction activity that has been formally approved by the Division. The requirements for Qualifying
Local Progranes are outlined in Part 61.8(12) of the Colorado Discharger Permit System Regulations(also see the Division's
"Qualifying Local Programs for Small Construction Sites-Applicaiion Guidance'). Such programs must impose
requirements to protect water quality that are at lenst as strict as those required in this permit.
A. Approval Terrninarion: A Qualifying Local Program may be terminated by either the Division or the municipality.
Upon termination of Division approval of a Qual�ing Local Program, any small construction activity required to
obtain permit coverage under Section b1.3(2)(h)of the State Discharge Permit System Regulations sha11 submit an
application form as provided by the Division, with a certzfication that the Stormwater Management Plan (SWMP)is
complete as required by Part 1.A.4 of the Perneit, within 30 days.
B Approval Expirarion: Division approval of a Qualifying Local Program will expire with this general permit on June
30,2007. Any municipality desiring to connnue Division approval of iheir program must reapply by March 31, 7007.
The Division will determine if the program may continue as a approved Oual�ing Local Prograrn.
COLOR,4D0 DEPARTMENT OFPUBLICHEALTH.4ND ENVIRONMENT, Water Quality Control Division
Rationale-Page�. Permit No. COR-030000
YII. TERMS AND CONDITIONS OF PERMIT
A. Coverage un�ler a QualifyinQ Local Pro.Qram—For Small Construction Sites Only
For small construction sites(disturbing less than 5 acres)covered under a Qualifying Local Program(see Section vl
above), only certain permit reguiremenzs apply, as or�tlined below. The local program must have been formally
designated by the Division to qualify. Most municipalities have some type of local program and may require permits
and fees. However,simply having a program in place does not necessarily mean that it is a qualifying program and
that a State permit is not required. The loca/municipality will be responstble for notiJying operators and/or owners
that they are covered by a Qualifying Local Program.A list of municipalities with Qualifying Local Programs fs also
available at http://www.cdphe.state.co.us/wq/PermitsUnit/wqcdpmt.html.
The Division reserves the right to require any owner or operator within the jurisdiction of a Oualifying Local Program
covered under this permit to apply for and obtain coverage under the full requirements of this permit.
1. Permit Coverage: If a construction site is within the jurisdiction of a Qual�ing Local Program, the operator of
the construction activity is authorized to discharge stormwater associated with small construction activity under
this general permit without the submittal of an application to the Division. The permittee also is not required to
submit an inactivation notice or payment of an annual fee to the Division.
2. Permit Terms and Conditions.� The permittee covered by a Qualifying Local Program must comply with the
requirements of ihat Qual�ing Local Program. In addition, the following permit sections are applicable:
i. I.A.l, 1.14.2, and I.A.3: fluthorization to discharge and discussion of coverage under the permit.
ii. I.C.1: General limitarions that must be met in addition to local reguirements.
iii. I.C.2,I.C.3: Prohibition of non-stormwater discharges unless addressed in a separate CDPS perneit, and
requirements related to releases of reportable quantities.
iv. I.D: ,4ddirional deferitions.
v. Pan II (except for Pans II.A.I, II.B.3,II.B.B,and II.BIO): Spec�cally includes, but is not limited to,
provisions applicable in the case of noncompliance with permit reguirement, and requiremenu to provide
information and access.
B. Stormwater Mana�ement Plans(SWMPs)
Prior to commencement of constructian, a stormwater management plan(SWMP)shall be developed and implemented
for each facility covered by this permii. A cenifzcation that the SWMP is complete must be submitted with the permit
application. The SWMP shall ident�potential sources ofpollution (including sediment) which may reasonably be
expected to affect the quality of stormwater discharges associated with construction activity from the facility. In
addition, theplan shall describe the best managementpractice(BMPs)which will be used to reduce thepollutants in
stormwater discharges from the construction site. Facilities must implement the provisions of their SWMP as a
condition of this permii. The SWMP shall include the fo1loH�ing items:
1. Site Description
2. Site Map
3. BMPs for Stormwater Pollution Prevention
4. Longterm Stormwater�lanagement
5. Other Controls
6. Inspection and Maintenance
7. Signatory Requirements and Availabiliry
8. SWMP Review/Changes
(See Part I.B. of the permit for a more detailed description of SWMP requiremen.*s.J
COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT, Water Quality Control Division
Rationale-Page 6. Permit No. COR-030000
{'II. TERMS AND CONDITIONS OF PERMIT(cont.)
C. MonitorinQ
Sampling and testing of stormwater for specrfic parameters zs not required on a routine basis under this permit.
However, the Division reserves the nght to require sampling and testing on a case-by-case basis, in ihe event thar
there is reason to suspect that compliance with the SWMP is a problem, or to measure the effectiveness of the BMPs in
removing pollutants in the effluent.
D. Facility Inspections
Active construction sites must inspect their stormwater management controls at least every 14 days and after any
precipitation or snowmeft event that causes surface erosion. At sites where construction has been completed but a
vegetative cover has not been established, these inspections must occur ai least once per month. At sites where winter
conditions exist, inspections are not reguired during the penod that the winter conditions exist. For all of these
inspections, records must be kept on ftle. Refer to the permit at Part I.C.S for detailed requirements of these
inspections.
E. Revision o{SWMP
Based on the resulis of the inspections(see D. above�, the description of potenrial pollutant sources and the polZution
prevention and control rneasures, identifeed in the SWMP, and the control measures themselves,shall be revised and
mod f ed as appropriate as soon as practicable after such inspection. Modification of control measures shall be
implemented in a timely manner, but in no case more than 7 calendar days after the inspection.
F. Repor[inQ
The inspection record shall be made available to the Division upon reqr�est. Regular submittal of an annual report is
not required in this permit.
G. Annual Fee
The permittee is required to submit payment of an annual fee as set forth in the Water Quality Control.4ct. Pern:ittees
will be billed for the initial permit fee within a few weeks of permit issuance and then annually, based on a July 1
through June 30 billing cycle.
For small construction activities, if application was made for coverage with a completion date 11 months or less from
the start of constructian activity,a fee will be assessed based on the estimated number of calendar quarters the site is
active. Projects going beyond that time witl be billed the standard annual fee.
H. Inacrivation Notice
When a site has been finally stabilized in accordance with the SWMP, the operator of the facility shall submit an
Inactivation Notice that is signed in accordance witi�Part I.E.1 of the permit. The content of the Inactivation Notice is
descnbed in Part I.A.6 of the permit. A copy of the Inactiv¢tion Notice form will be mailed to the permittee along with
the permit certification. Addirional copies are available from the Division.
,9n exception to the requirement to submit an inactivation has been included in the renewed permit for Sma11
Construction Sites that will be fznally stabili:ed within 12 months of the beginning of construction activities.In such
cases, the permit certzfzcation will indicate the autornatic expiration dare. If permit coverage is needed beyond that
date, an eztension request form must be submitted to ihe Division at least 10 days prior to the erpiration date.
COLOR4D0 DEPARTMENT OF PUBLIC HE.4LTH AND ENVIRONMENT, Water Quality Control Division
Rationale-Page 7. Permit No. COR-030000
VII. TERMS AND CONDITJONS OF PERMIT(cont.)
I. Transfer of Permit
When responsibilih�for stormwater discharges at a construction site changes from one individual to another, the
permit shall be transferred in accordance with Part I.A.7 of the permit. The Notice of Transfer form will be mailed to
the permittee along with rhe permit certification. Additional copies are available from the Division. If the new
responsible party will not complete the transfer form, the permit may be inactivated if the permittee has no legal
responsibility, through ownership or contract,for the construction activities at the site. In this case, the new operator
would be required to obtain permit caverage separately.
J. Durarion o{Permit
The general permit will expire on June 30, 2007. The perminee's authority to discharge under this perrrtit is approved
until the expiration date of the general perntit. Any perminee desiring continued coverage under the general permit
must apply fo�recertification under the general permit at least 90 days prior to its expiration date.
Nathan Moore
March 11, 2002
VII CH.4NGES MADE AFTER PUBLICNOTICE
Several comments were received from the Environmental Protection Agency(EPA). Changes based on these comments and
additional internal review are discussed below:
A. Tfse EP,4 commenied that language needs to be added to the permit addressing the certification reguirements for
inspection reports. Part l.E.]of the Permit requires that all reports submitted to the Division include specific
certification language. Because site inspections required by Part I.C.5 of the permit are not submined to the Division,
thev are not covered under Part 1.C.S of the Permit or Regulation 5 CCR 1002-61,Section 61.4(1)(�, which require
specific certif cation language.
However,Regularion 5 CCR I002-61, Section 61.8(4)(o)(ii)(B)does require that the permittee maintain a record
summarizing the inspections that includes a certification that the site in compliance with the plan and the permit.
Therefore, language has been added to Part I.C.S of the Permit, requiring that a signed statement be included with all
records of inspection on the status of compliance at the site.
B. The EPA recommended ihat the Permif and Rationale be changed ta indicate that the application is due ten days prior
to the commencement of construction aciivities, instead of prior to the¢nticipated date of discharge. The Division
agrees that this wording is preferable and more accurately indicates the Division's existing interpretation of the
regulations. These changes have been made.
C The EPA expressed concern with requiring a permitiee to transfer permit coverage in cases where the new responsible
party may not be cooperative. Language has been added to the Pernzit and Rationale clarifying that termination of
permit coverage is allowed when the permittee no longer has any legal responsibiliry through ownership or contract
for the construction activity.
D. The EP,4 commented on the lack of a definition for the terms "receiving water"and "ultimate receiving water". f1
de�nition has been added to the Permit, and the term "ultimate receiving water" clarifted to indicate that it mearu the
first named receiving water, if the discharge initially goes to an unnamed ditch or storm sewer.
Nathan Moore
May I5, 2002