HomeMy WebLinkAboutE16-0158_G-1A plans approved.pdf 401 OF go
.4,7400444itee
.4..,10110(
1.0 Introduction equipment to circuit breakers,and he available to troubleshoot electrical problems with the be underpinned adequately or otherwise protected against settlement and shall be .
system. protected against lateral movement per applicable building Bode.
The enclosed drawings and specifications contain information for the construction and installation of # 1117
a treatment facility. The following drawings depicting the treatment facility are required for 3.0 Trenching and Backfill 3.4 Backfill z
construction and installation: ,
3.1 General 3.4.1 Trenches shall be backfilled as soon as practical after pressure testing the underground 0
Drawing No. Revision Title pipe runs, and following any required inspections. Trenches shall not remain open irCr07
3.1.1 Trenching and backfill specifications will be developed by the ENGINEER, and be longer than necessary to prevent sidewall caving. If caving is anticipated, the
3-1A 0 Specifications Sheet(1 of 3) presented in the design plans. CONTRACTOR shall use a commercial soil sealanUbinder or forms to prevent caving.
G-1 B 0 Specifications Sheet(2 of 3) Chemical soil binders/sealants shall be approved by CEMC. 08/15/16
G-1C 0 Specifications Sheet(3 of 3) 3.1.2 The trenching and bacilli specifications are subject to approval by the local authority
3-2 0 Site Details&Trenching Layout during planning and building department permit reviews. 3.4.2 Prior to backfilling, the CONTRACTOR shall confirm that the underground pipe is
P-1 0 Treatment Facility Layout buried to a minimum depth of 18 inches from the top of the pipe, unless otherwise
3.1.3 All mechanized equipment operation (i.e., backhoe, excavator, or other powered
P-2 0 Process and Instrumentation Diagram noted in the design plans and local building cedes.
P-3 0 Treatment Facility Equipment Schedule equipment) shall be performed by competent personnel and/or personnel licensed to
perform such work. All construction shall be performed by trained personnel operating 3.4.3 Underground pipingshall be bedded in clean sand, or the ENGINEER-approved
P-4 0 Trenching Cross Section Details rg PP
under a licensed contractor. equivalent.to a minimum depth of 2-inches below the bottom of the piping and 2-inches
P-S 0 Compound Piping Stub-Up Layout q P P P 9
P-S 0 Construction Details—Manifold above the piping. The sand shall be clean,rock-free(100 percent passing No.4 sieve).
P-7 0 Construction Details-Wellhead Connection 3.2 Pavement Cutting and free of silt and clay.
P-S 0 Construction Details—Foundation Anchoring and Well Vault 3.2.1 Existing pavement shall be saw cut to provide a neat vertical face for repaving. When wet- 3.4.4 Trench backfill material may consist of Class II aggregate base course,CDF slurry mix,
E-1 0 Electrical Connections and Single Line Diagram cutting,best management practices(BMPs)shall be implemented to prevent cutting water or approved "native" excavated material. Backfill materials shall not contain rubble,
CHEVRON:Chevron Environmental Management Company from entering storm drains or migrating from the site. vegetation,trash,boulders,or other debris_
ENGINEER:Leidos Engineering.LLC 3.2.2 The CONTRACTOR shall make every effort to use existing pavement edges and joints 3.4.5 Native sal may be used as backfill with approval of CEMC and the ENGINEER. It is
CONTRACTOR:To be determined by bid when saw cutting to reduce unnecessary cuts. Pavement removed from trenches or other recommended that native soil be tested for geotechnical properties to determine if the
excavations shall be replaced to match the existing material. material is suitable for backfill.
2.0 General Construction Specifications
3.2.3 Concrete or asphalt trench cuts shall not exceed a nominal width of 36 inches,and shall 3.4.6 Backfill material (other than CDF slurry)shall be placed in 8-inch maximum lifts(unless
2.1 The CONTRACTOR shall review the facility design plans,and field verify all dimensions be not less than 18 inches wide(nominal)unless specified otherwise in the design plans. otherwise specified in the design plans),and compacted to 95 percent of the maximum
and site conditions before starting work. The ENGINEER shall be notified of any Trenches shall be cut to the minimum width necessary to accommodate all piping shown dry density at optimum moisture content(based on Modified Proctor Compaction Test
discrepancy. in the design plans. ASTM D1557)or in accordance with the local codes.
2.2 All materials used for construction of the facility shall be new unless otherwise noted. 3.3 Trench Excavation 3.4.7 Backfill soil shall be compacted to 95 percent of the maximum dry density at optimum
2.3 The ENGINEER will request a plan check, if applicable. The ENGINEER shall apply for 3.3.1 Trenches shall be excavated to the specified widths and depths specified in the design moisture content(based on ASTM D1557)Or in accordance with the local codes.
and obtain all discharge permits for treated water and air,as applicable. plans. Any deviation from the trenching plans shall be approved by the ENGINEER before 3.4.8 Cement sand slurry(controlled density fill [CDF]]may be used as backfill material with
work commences_ All deviations shall be documented on the"As-Built drawings. the approval of CEMC and the ENGINEER The CDF shall be 1.5 to 2 sack slurry. No
2.4 The CONTRACTOR shall obtain and pay for all building permits. The CONTRACTOR compaction testing is required for CDF.
shall obtain all necessary inspections,including rough electrical,mechanical,civil,or other 3.3.2 CONTRACTOR shall stop work immediately if product piping or tank field is encountered
applicable inspections, and obtain a final signed off inspection card from the local during excavation. Further excavation shall not be conducted without the approval of 3.4.9 Gass 2 aggregate base shall be placed under new asphalt pavement. The aggregate
authority. CEMC and ENGINEER_ base thickness should equivalent to the existing aggregate base thickness or six inches
2.5 The CONTRACTOR shall provide a one year warranty on all CONTRACTOR-provided 3.3.3 All excavation activities shall be in strict accordance with OSHA regulations and all whichever is greater.
materials and supplies. The CONTRACTOR shall provide a warranty on workmanship for Federal,State,and Local laws and regulations. 3.4.10 Prior to paving, the CONTRACTOR shall remove all vegetation, surplus soil, rubble,
a period of not less than one year. Al defects in CONTRACTOR supplied and installed trash, debris and other materials and provide a flat, unyielding subgrade surface for
materials and supplies shall be repaired at CONTRACTOR expense. 3.3.4 All excavated soil shall be monitored by the ENGINEER in accordance with local paving. Saturated, soft or pumping soils shall be removed and replaced with suitable
contaminated soil handling regulations and permits. If hydrocarbon impacted soil is material in accordance these specifications.
2.6 In addition to the remediation design plans,the ENGINEER will supply the CONTRACTOR detected, the soil shall be stockpiled in an area designated by the ENGINEER. The
with manufacturer's equipment handling and installation procedures. The CONTRACTOR impacted soil shall be placed on 6 mil plastic sheeting and securely covered using a 3.4.11 The CONTRACTOR shall prepare the sub-grade elevation to match the base of the
will install all equipment in accordance with the manufacturers' specifications and minimum of 6 mil thick plastic sheeting. Alternatively, impacted sail may be placed in existing pavement, unless the asphalt restoration design exceeds existing in-place
instructions. properly labeled DOT-approved 55 gallon steel drums or roll-off bins. The ENGINEER asphalt design.
shall be responsible for sampling and chemically analyzing the excavated soil for
2.7 The ENGINEER will clearly indicate in the remediation design plans the items to be hydrocarbons for waste profiling_ CEMC will be responsible for disposal/treatment of 4.0 Piping
provided by CEMC,the ENGINEER and others. All other items and equipment not clearly hydrocarbon impacted soil.
indicated as provided by others in the remediation design plans shall he provided try and 4,1 General
installed by the CONTRACTOR. 3.3.5 The CONTRACTOR shall be responsible for loading soil into trucks and off-site disposal or /y
recycling of all hydrocarbon-free soil and construction debris. 4.1.1 The local authority, and building and plumbing codes,along with ASTM specifications. Chevron
2.8 The CONTRACTOR shall be responsible for keeping the site free of excessive debris and shall be used to design the types of piping and installation methods required for each
waste during construction. The CONTRACTOR is to take the necessary precautions to 3.3.6 The CONTRACTOR shall take all necessary precautions to avoid damaging existing remediation site.
control dust and stormwater runoff from excavation and construction activities. underground utilities,piping,and underground structures during excavation activities.
4.1.2 All piping work shall be installed by trained personnel operating under a state-licensed 40.
2.9 The CONTRACTOR shall be responsible for the independent location of all utilities and 3.3.7 The CONTRACTOR shall hand-excavate to expose all existing product, vent, electrical contractor.
shall take appropriate measures to protect them from damage. The CONTRACTOR shall conduit,water,and sewer lines before excavating with mechanical equipment.
formally contact the regional underground utility notification service, such as the 4.1.3 All materials shall be new,unless otherwise specified in the design plans. %.
Underground Service Alert (USA), One Call, or Blue Stakes, and obtain all necessary 3.3.8 Once all existing lines have been located,the trenches shall be neatly cut by a backhoe,
clearances before breaking ground. Should any utilities, including but not limited to, excavator,bobcat,or other approved method to provide a square cut trench. 4.1.4 All materials and work shall be in accordance with the pipe manufacturer's
electrical conduits, telephone lines, water lines. sewer,or storm drain lines be damaged specifications,the design plans,and all applicable codes. (SHEET 2 OF 10)
during construction, the CONTRACTOR shall be responsible for notifying the affected 3.3.9 The CONTRACTOR shall be responsible for the safety and integrity of trenches and
parties and completing repairs,if applicable. The CONTRACTOR shall be responsible for trench plates placed over open trenches during working and non-working hours. If 4.1.5 All piping and plumbing shall be performed by trained and competent personnel,who
P 9 Pa PP P REV DATE DESCRIPTION DRAWN REVIEW
all re it costs. trenches must remain open after normal work hours the CONTRACTOR shall implement meet all of the requirements dictated by the local authorities. In addition, the
the following measures: CONTRACTOR is responsible for ensuring the installation of any equipment or PREPARED EY T.ATKINSON REVIEWED EY
T.ATKINSON
2.10 CONTRACTOR shall also be responsible for repairing all damage made by the materials which require specific licensing shall be performed under the direction of the DATE DATE
CONTRACTOR to monitoring wells, well seals, manhole boxes, and all above ground • Active traffic areas-open trenches shall be covered by steel trench plates capable of individual who holds a current license for such work. 5/5/16 5/5/16
structures as the result of accident or neglect. supporting vehicular traffic. Trench plates are to be placed so that there are no gaps
between plates. The edges of the plates shall be secured with temporary asphalt patch 4.1.6 When connecting to existing underground piping, the CONTRACTOR shall first verify D RAW I N G G-1 A
2.11 The CONTRACTOR shall restore all disturbed areas to match the pre-construction to minimize displacement by vehicles crossing the plates. the existing piping path. if the existing underground piping is to be used for
conditions and the surrounding area. This includes disturbed lawns, trees, shrubs, conveyance,the CONTRACTOR shall also field verify the integrity of the existing pipe SPECIFICATIONS
plantings,fences,sidewalks,and other structures. • Non-traffic areas -open trenches shall be covered by steel trench plates (non-skid prior to connecting to it. SHEET
plates in frequently used pedestrian areas)or t'.-inch thick plywood.
2.12 Upon completion of the project, the CONTRACTOR shall assist the ENGINEER in 4.1.7 The pipe for vapor lines shall be sloped towards the wellheads at a ratio of 1:100 to
preparing "as-built" drawings. The"as-built"drawings shall show the actual construction 3.3.10 The CONTRACTOR shall fake precautions to minimize surface water entering excavations avoid accumulation of condensate in the pipes. if a trench depth of greater than 4 feel FORMER CHEVRON FACILITY#9-0499
details,including final trench and well locations,compound layout,and piping details. and preventing oversaturation of trenches. is needed to achieve a required slope,the CONTRACTOR shall notify the ENGINEER
and implement measures to address potential condensate accumulation in the pipe as 934 SOUTH FRONTAGE ROAD
2.13 A final inspection will be performed by the ENGINEER and/ora CEMC representative. All 3.3.11 When required by local authority,the ENGINEER will implement a Storm Water Pollution directed by the ENGINEER. VAIL,COLORADO
items not meeting the specifications and the remediation design plans shall be promptly Prevention Plan (SWPPP). The CONTRACTOR shall strictly follow the requirements of
repaired and/or replaced by the CONTRACTOR at no expense to CEMC. the SWPPP. if no SWPPP is required, the CONTRACTOR shall implement Best 4.1.8 Where piping is installed above ground, pipe supports and clamps shall be used to
Management Practices to ensure that all storm water runoff from construction debris, support the pipe at appropriate intervals to prevent sag as specified in the piping
2.14 The CONTRACTOR shall provide an electrician for a minimum of two days for the startup excavated soil,or disturbed surfaces will not to enter a storm drain or runoff the site. manufacturer's specifications. When Unistrut supports are used the ends of the illaw.,
leidos
of the equipment, unless this work can be safely accomplished in less time. The supports shall be covered with plastic protective caps.
electrician shall be prepared to demonstrate proper motor rotation,proper connections of 3.3.12 Excavation shall not interfere with 45-degree zone of influence on any existing Foundation
or footing. Existing footings or foundations that may be affected by any excavation shall
PROJECT NUMBER FILE NAME DRAWING NO.
9-0499 9-0499 G-1A G-1A