Aboveground Storage Tank Closure and Replacement

8/10/2019 Aboveground Storage Tank Closure and Replacement

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ATTACHMENT A

SPECIFICATIONS

ABOVEGROUND STORAGE TANK CLOSURE AND REPLACEMENT

LARIMER COUNTY FLEET SERVICESROAD AND BRIDGE LIVERMORE SHOP

LIVERMORE, COLORADO

BID NO. 12-03

DECEMBER 2012

TERRACONFORT COLLINS, COLORADO


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SECTION 01011

SUMMARY OF PROJECT

1. GENERAL

1.1. SECTION INCLUDES

A. Part 1.2 - Project: Work Covered by Project SpecificationsB. Part 1.3 - Administrative and Procedural Sections Applicable to Project

1.2. WORK COVERED BY PROJECT SPECIFICATIONS

A. The specificat ions for equipm ent and mater ials associated with the ASTsystems allow for the submittal by the Contractor of proposedalternates to the specifications that are required to be reviewed and

approved by the Engineer. All propos ed equivalents or equals to thespecifications are required to be approved prior to the submittal of thebids to the Owner. All proposed alternates to the specific ations arerequired to be submit ted 10 calendar days prior to the bid su bmitt al duedate. Approved alternates to the specifications will be issued as anaddendum to the project specifications prior to submi ttal of bid. Noproposed alternates to the specifications will be considered aftersubmi ttal of the bid.

B. The following specifications and associated diagrams constitute therequirements for work to be performed by the contractor or subcontractor(s)(hereafter known as the Contractor), for removal and replacement of above-ground storage tanks (ASTs) at the Larimer County Fleet Services - Roadand Bridge Facility in Livermore, CO. These project specifications have beendeveloped by Terracon Consultants, Inc. (hereafter known as the Engineer),on behalf of Larimer County Fleet Services (hereafter known as the Owner).Drawings of the site showing the approximate locations of the new andexisting AST systems and components are attached. The general scope ofthis work includes, but is not limited to, the removal, purchase, andinstallation of items described in the following sections.

1) Above-ground Storage Tank Removal

The Contractor shall provide all equipment and labor as may be required for removal and

disposal of the existing AST systems at the Road and Bridge Facility in Livermore, CO. This includes

demolition and removal of the following:


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One 2,000-gallon diesel fuel AST One 1,000-gallon unleaded gasoline AST (removal, cleaning, transfer and re-

installation of at Vine Street Shop in Fort Collins, CO) Pumping systems, dispensers and piping

Concrete foundations for tanks, pavement, fueling islands, fill ports,containment structures and dispensers

Miscellaneous equipment from the site as shown on the Drawings Contractor is responsible for removal and proper disposal of all liquids and

sludges inside the ASTs, piping, and dispensers prior to demolition andremoval

The existing Fuel Master fuel management system terminal shall be disconnected, removed,

relocated and installed at the new AST installation. The area will be backfilled and compacted as

specified.

The existing 1,000-gallon gasoline AST shall be cleaned, inspected, transferred

and re-installed at the Larimer County Vine Street Shop as a used oil AST.

Contractor shall include allowance moneys in bid for over-excavation, loading,

waste characterization sampling and testing, waste disposal acceptance,

transportation, and replacement/backfill material of up to 100 in-place cubic yards

of petroleum contaminated soil as directed by the Engineer.

The existing AST system will not be removed or demolished until the new AST

system is constructed, operationational, and permission is given by the Engineer

and Owner to remove the existing AST system.

2) Above-Ground Storage Tank Installation


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The Contractor shall provide all equipment and labor as may be required for thecomplete installation of the new AST system at the Road and Bridge Facility inLivermore, CO. This includes installation of one 6,000-gallon dual-compartment

AST (4,000-gallon diesel fuel and 2,000-gallon unleaded gasoline) system. The AST system shall be delivered to the site factory assembled including skid-mounted tank, pumping system, dispensers, piping, fill ports, sensor ports, overfillprevention sumps, and dispensers. The installation also includes the following:

Concrete tank pads/foundations Protective bollards Site lighting Relocation of the Fuel Master fuel management system Fabrication and

installation of an enclosure for the Fuel Master system terminal Electrical service Miscellaneous equipment and materials for a complete fuel system as shown

on the Drawings

3) Vine Street Shop Used Oil Above-Ground Storage Tank Removal andInstallation

The Contractor shall provide all equipment and labor as may be required for theremoval and disposal of the existing used oil AST at the Vine Street Shop in FortCollins, CO, cleaning of the existing gasoline 1,000-gallon AST at the Road andBridge Facility in Livermore, loading and transporation of the 1,000-gallon AST tothe Vine Street Shop, and complete installation of the 1,000 gallon tank as a usedoil AST at the Vine Street Shop in Fort Collins, Colorado. The installation alsoincludes the following:

Removal and demolition of the existing used oil AST located at the VineStreet Shop

Cleaning of the 1,000-gallon AST located at the Livermore Shop Loading and transfer of the 1,000-gallon AST to the Vine Street Shop Installation of the 1,000-gallon AST and piping to the existing used oil

transfer lines Miscellaneous equipment and materials for a complete used oil storage

system as shown on the Drawings

C. Project Sequence: The existing fueling system at Livermore Shop shallremain fully operational until the new AST system is operational. Removal of

the existing fueling system shall not begin without approval from theEngineer.

D. Project Sequence: The installation of the new used oil AST at the Vine StreetShop shall be operational within two days of the existing used oil AST systembeing shut down. At least two weeks notice shall be given to the Owner priorto disconnecting and removal of the existing used oil AST system.


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1.3. ADMINISTRATIVE AND PROCEDURAL SECTIONS APPLICABLE TO PROJECT

A. Section 01011 - Summary of ProjectB. Section 01039 - CoordinationC. Section 01100 - Health and SafetyD. Section 01400 - Quality ControlE. Section 01410 - Testing Laboratory ServicesF. Section 01570 - Traffic ControlG. Section 02000 - Mobilization and DemobilizationH. Section 02088 - Underground Storage Tank RemovalI. Section 02110 - Demolition and Site ClearingJ. Section 02222 - ExcavationK. Section 02223 - Stabilization, Backfill and CompactionL. Section 02231 - Aggregate Base Course

M. Section 02575 - Pavement Repair and ResurfacingN. Section 13205 - Above-Ground Storage Tank Installation

END OF SECTION


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SECTION 01039

COORDINATION

1. GENERAL1.1. SECTION INCLUDES

A. Coordination

B. Measurement and Payment1.2. COORDINATION

A. Coordinate scheduling, submittals, and Work as defined by the variousSections of specifications to assure efficient and orderly sequence of removaland over excavation of interdependent project elements.

B. Coordinate removal and installation operations with Owner and Engineer suchthat an operable fueling system is in place during all aspects of constructionactivities.

C. Coordinate space requirements with site personnel, and organize work areaefficiently so as not to interfere with site operations.

2. MEASUREMENT AND PAYMENT2.1. PAYMENT: Payment for all coordination described in this section will be included

in the lump sum or unit prices in the Bid Schedule. The lump sum or unit prices

shall include all costs for all labor, materials and equipment required to completethe work in accordance with the Plans and Specifications.

END OF SECTION


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SECTION 01100

HEALTH AND SAFETY

1. GENERAL

1.1. SECTION INCLUDES:

A. This section covers requirements for health and safety procedures relating towork in areas where petroleum hydrocarbon or solvent contamination isencountered or is expected to be encountered.

1.2. SUBMITTALS

A. Contractor shall prepare and submit a Health and Safety Plan to the Engineerprior to initiating work at the site, in accordance with applicable sections of

29CFR 1910.120 and 29 CFR 1926. Health and Safety Plan shall besubmitted to the Engineer at the Pre-Construction Conference meeting or nolater than 15 calendar days from the date of Notice to Proceed. TheEngineers receipt of such plans does not relieve the Contractor from theresponsibility to protect his/her personnel and subcontractor personnel.

B. The Contractor shall submit copies of 40-hour, 8-hour refresher andSupervisor/Manager training certificates showing compliance with trainingrequirements of 29 CFR 1910.120 as part of the Health and Safety Plan.

1.3. SCOPE OF WORK

A. The Contractor shall prepare and submit copies of Health and Safety Plansfor Contractors associated personnel and subcontractors performing work atthe sites.

B. Contractor engaged in project activity at the sites will comply with applicableprovisions of the Occupational Safety and Health Act of 1970, the safety andhealth requirements set forth in Occupational Safety and Health

Administration regulation 29 CFR 1910.120, where applicable, and anyapplicable state, city or local safety codes. The Contractor will be responsiblefor supplying and utilizing necessary equipment required for safetyprecautions for the Contractors and subcontractors employees engaged inthis project.

C. The Contractor will assign a competent person to oversee work at the site,and shall maintain an orderly and safe work area around demolition, cleaningand excavation equipment to minimize the potential for accidents, including


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the use of safety barricades or warning devices to prevent accidents or injuryto field personnel and the general public.

D. The Contractor personnel and subcontractor personnel working on the projectare required to have current training and medical surveillance in accordancewith OSHA Hazardous Waste Operations and Emergency ResponseStandards (29 CFR 1910.120).

E. Contractor workers should use extra care when working in areas whichpetroleum hydrocarbon contamination is encountered or is expected to beencountered. Steel toe work boots, and hard hats should be worn at alltimes. Workers are not to smoke, eat or chew tobacco while in the work area.Workers should wash their hands, face and any exposed skin as soon aspossible upon leaving the work area.

F. The Contractor shall monitor the work area using a combustible gas indicator(CGI) and photoionization detector (PID). This monitoring equipment shall beoperated and calibrated in accordance with the manufacturersrecommendations. This monitoring is required when working in areas wherepetroleum hydrocarbon or solvent contamination is encountered or isexpected to be encountered. Work activities shall cease and workers shouldevacuate to the upwind side of the project site if combustible gasconcentrations in the work zone exceed 20% of lower explosive limit (LEL). Ifsustained PID readings in the breathing zone of site personnel are greaterthan or equal to the levels specified in the Contractors Health and SafetyPlan, as organic vapor in air, personnel will upgrade to NIOSH-approvedrespiratory protection or evacuate to the upwind side of the work zone.

G. Rubber gloves, clothing, and boots should be worn, as necessary, to protectskin from irritation and absorption of potential contaminants. Respiratoryprotection, eye protection and hearing protection shall be on site andavailable at all times and should be used as necessary.

2. MATERIALS

A. Not used.

3. EXECUTION

A. Not used.

4. MEASUREMENT AND PAYMENT

4.1. PAYMENT: Payment for all health and safety work described in this section willbe included in the lump sum or unit prices in the Bid Schedule. The lump sum


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and unit prices shall include all costs for all labor, materials and equipmentrequired to complete the work in accordance with the Plans and Specifications.

END OF SECTION


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SECTION 01400

QUALITY CONTROL

1. GENERAL


A. Related Sections

B. Quality Assurance - Control of Installation

C. Tolerances

D. References

E. Inspecting and Testing Laboratory Services Performed by Engineer

F. Inspecting and Testing Laboratory Services Hired by Engineer or Owner

G. Measurement and Payment

1.2. RELATED SECTIONS

A. Section 01410 - Testing Laboratory Services

1.3. QUALITY ASSURANCE - CONTROL OF INSTALLATION

A. Monitor quality control over suppliers, manufacturers, products, services, siteconditions, and workmanship, to produce Work of specified quality.

B. Comply with manufacturers instructions, including each step in sequence.

C. Should manufacturers instructions conflict with Contract Documents, requestclarification from Engineer before proceeding.

D. Comply with specified standards as minimum quality for the Work exceptwhere more stringent tolerances, codes, or specified requirements indicatehigher standards or more precise workmanship.

E. Perform work by persons qualified to produce workmanship of specifiedquality.


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1.4. TOLERANCES

A. Monitor tolerance control of installed Products to produce acceptable Work.Do not permit tolerances to accumulate.

B. Comply with manufacturers tolerances. Should manufacturers tolerancesconflict with Contract Documents, request clarification from Engineer beforeproceeding.

C. Adjust Products to appropriate dimensions, position before securing Productsin place.

1.5. REFERENCES

A. For Products or workmanship specified by association, trade, or otherconsensus standards, comply with requirements of the standard, except whenmore rigid requirements are specified or are required by applicable codes.

B. Conform to reference standard by current date, except where a specific dateis established by code.

C. Obtain copies of standards where required by product specification sections.

D. The contractual relationship, duties, and responsibilities of the parties in theContract nor those of the Engineer and Owner shall not be altered from theContract Documents by mention or inference otherwise in any reference

document.1.6. OBSERVATIONS AND TESTING LABORATORY SERVICES PERFORMED

BY ENGINEER

A. Construction materials testing services required in the Contract will beperformed by the Engineer at no cost to the Contractor. Contractor shallsubmit samples required for testing and coordinate with the Engineer forthese services as a part of the price for Work. The Engineer shall performtests as specified in individual specification sections and as required by theContract.

B. Observations, testing, and source quality control may occur on or off theproject site.

C. Cooperate with Engineer; furnish samples of materials, design mix,equipment, tools, storage, safe access, and assistance by incidental labor asrequested.


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SECTION 01410

TESTING LABORATORY SERVICES

1. GENERAL

1.1. DESCRIPTION: This section describes requirements for testing laboratoryservices used in connection with construction of the project.


A. Related Sections

B. References

C. Selection and Payment

D. Engineers Responsibilities

E. Contractors Responsibilities

F. Schedule of Inspections and Tests

G. Measurement and Payment


A. Individual Specification Sections: Observations and Tests Required, andStandards for Testing

1.4. REFERENCES

A. ASTM C1077 - Practice for Laboratories Testing Concrete and Concrete Aggregates for Use in Construction and Criteria for Laboratory Evaluation.

B. ASTM D3740 - Practice for Evaluation of Agencies Engaged in Testing and/orInspection of Soil and Rock as Used in Engineering Design and Construction.

C. ASTM D4561 - Practice for Quality Control Systems for an Inspection and

Testing Agency for Bituminous Paving Materials.

D. ASTM E329 - Practice for Use in the Evaluation of Inspection and Testing Agencies as Used in Construction.

E. ASTM E543 - Practice for Determining the Qualification of NondestructiveTesting Agencies.


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1.5. SELECTION AND PAYMENT

A. The Engineer will perform the specified construction testing.

B. Performance of testing by the Engineer in no way relieves Contractor ofobligation to perform Work in accordance with requirements of ContractDocuments.

C. Quality control services include observations and tests and related actionsincluding reports performed by independent agencies, governing authorities,and the Contractor.

1.6. ENGINEERS RESPONSIBILITIES

A. The Engineer will:

1) Test and approve proposed construction materials submitted byContractor.

2) Provide qualified personnel at site. Cooperate with Contractor inperformance of services.

3) Perform specified observations, sampling, and testing of Products inaccordance with specified standards.

4) Ascertain compliance of materials and mixes with requirements ofContract Documents.

5) Promptly notify Contractor of observed irregularities or non- conformanceof Work or Products.

6) Perform additional observations and tests.

1.7. CONTRACTORS RESPONSIBILITIES

A. Deliver adequate samples of materials proposed to be used which requiretesting, along with proposed mix designs seven days prior of initiation of fieldwork.

B. Cooperate with Engineer and provide access to the Work and tomanufacturers' facilities.

C. Provide incidental labor and facilities:

1) To provide access to Work to be tested,


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SECTION 01570

TRAFFIC CONTROL

1. GENERAL

1.1. DESCRIPTION: Traffic control through the demolition and construction areas isdescribed in this subsection. The traffic control shall be the responsibility of theContractor. The Contractor is required submit a written plan to the Engineer andOwner identifying propose methods and means for handling traffic control throughthe work areas during the different stages of work prior to initiation of field work.The Contractor is not allowed to start fieldwork if the Traffic Control Plan has notbeen submitted. The review and comment of the Traffic Control Plan showing theproposed method of handling and devices which shall be used to control traffic onthe project and shall in no way relieve the Contractor of liability for the safepassage of traffic through the construction area.


A. Related Sections

B. Traffic Signs and Signals

C. Removal

D. Measurement and Payment


A. Section 01039 - Coordination

1.4. TRAFFIC SIGNS AND SIGNALS: Traffic signs and signals shall be in accordancewith the Manual on Uniform Traffic Control Devices and with applicable State andlocal regulations.

A. At approaches to the demolition and construction area, fencing, barricades,signs, and other devices needed to direct construction and affected site

traffic.

B. Relocate traffic control devices as Work progresses to maintain effectivetraffic flow.

C. All traffic control devices shall be provided with all components necessary tocomprise a complete installation.


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D. Any portable device that requires a way to prevent overturning shall be

weighted with appropriate sized sand bags.

1.5. REMOVAL

A. Remove equipment and devices when no longer required and when approvedby Engineer.

B. Repair any damage caused by installation.


2.1. PAYMENT: Payment for all traffic control required to complete the Work shall beincluded in the lump sum or unit prices in the Bid Schedule. The lump sum andunit prices shall include all costs for all labor, materials and equipment required tocomplete the work in accordance with the Plans and Specifications.

END OF SECTION


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SECTION 02000

MOBILIZATION AND DEMOBILIZATION

1. GENERAL

1.1. DESCRIPTION: Contractor shall mobilize and demobilize all personnel, materialsand equipment in an efficient manner to accomplish the Work.


A. Related Sections

B. Permits, Licenses and Fees

C. Measurement and Payment


A. Section 01039 - Coordination

1.4. PERMITS, LICENSES AND FEES

A. Obtain all necessary licenses and permits and pay all associated licensingand construction fees prior to mobilizing to the site to ensure compliance withall applicable Federal, State and local rules, laws and regulations includingLarimer County, Colorado Department of Labor and Employment, Division ofOil and Public Safety and Livermore Fire Department.


2.1. PAYMENT: Payment for mobilization and demobilization will be made at thelump sum or unit prices in the Bid Schedule. That lump sum and unit prices shallinclude all costs for all labor, materials and equipment required to complete thework in accordance with the Plans and Specifications.

END OF SECTION


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SECTION 02110

DEMOLITION AND SITE CLEARING

1. GENERAL


A. Related Sections

B. Requirements

C. Execution

D. Measurement and Payment


A. Section 02116 - Aboveground Storage Tank Removal

B. Section 02231 - Aggregate Base Course

1.3. REQUIREMENTS

A. Contractor is responsible for removal and proper off-si te disposal of all trashand debris associated with Work for this contract.

B. Coordinate demolition Work with utility companies where applicable.

2. EXECUTION

2.1. PROTECTION

A. Locate, identify, and protect utilities from damage.

B. Protect, repair and/or replace all fencing impacted by demolition and over-excavation.

C. Protect existing structures from damage or displacement.

D. Protect existing Fuel Master fuel management system to be relocated.


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SECTION 02116

ABOVE-GROUND STORAGE TANK REMOVAL

1. GENERAL

1.1. DESCRIPTION: The Work included under this section consists of furnishing alllabor, materials, services, equipment and appliances required to properly remove,close and dispose of the existing AST systems and associated ancillaryequipment, foundations, and containment structures at the Larimer County FleetServices Livermore Shop in Livermore, CO. This includes:

Removal and disposal of diesel fuel AST system including one ASTapproximately 6-feet in diameter and 12-feet long, approximately 2,000-gallons,

Removal, cleaning and painting (white) of unleaded gasoline AST systemincluding one AST approximately 4-feet in diameter and 11-feet long,approximately 1,000 gallons, tank gauges, etc, to be transported and installedat the Vine Street Shop in Fort Collins, CO;

Removal and disposal of pumping systems, piping, containment structures andwalls, tank foundations, fueling islands, pump island building, dispensers,electrical service, pavement, and miscellaneous equipment from the site asshown on the Drawings.

Removal and disposal of used oil AST located at the Vine Street Shopincluding one AST approximately 4-feet in diameter and 11-feet long,approximately 1,000 gallons;

Contractor is responsible for removal and disposal of all liquids and sludges insidethe tanks including diesel fuel, unleaded gasoline, used oil, water, solids, and/orsludge. The existing Fuel Master fuel management system shall be relocated tothe new installation by the Contractor.

Contractor shall include allowance moneys in bid for over-excavation, loading,waste characterization sampling and testing, waste disposal acceptance, loading,transportation, and replacement/backfill material of up to 100 in-place cubic yardsof petroleum contaminated soil as directed by the Engineer.


A. Related Sections

B. Performance Requirements


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C. Owner Occupancy

D. Protection

E. Utilities

F. Qualifications

G. Indemnification

H. Execution

I. Measurement and Payment


A. Section 01570 - Traffic Control

B. Section 02222 - Excavation

C. Section 02223 - Stabilization, Backfill, and Compaction

D. Section 02231 - Aggregate Base Course

E. Section 13205 - Above-Ground Storage Tank Installation

1.4. PERFORMANCE REQUIREMENTS

A. The intent of the Work is to accomplish safe and legal removal and disposal ofcomplete above-ground storage tank systems including: tanks, productpiping, equipment, residual fluids and solids (diesel fuel, unleaded gasoline,waste oil, water, and sludge), dispensers, fueling islands, concrete walls,pads, contaminated soil (if present), import of backfill, compaction andresurfacing of the excavation. The Contractor shall furnish all labor,materials, supplies, equipment, transportation, travel, and professionalservices necessary.

B. All work is to be performed in accordance with applicable Federal, State and

local regulations including requirements of NFPA, OPS, Larimer County,Livermore Fire Department, EPA, and OSHA.

1.5. OWNER OCCUPANCY

A. The Owner will occupy the sites during the entire period of AST removalactivities. The existing diesel and gasoline storage and dispensing system willremain operational throughout the construction of the new AST facility at the


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Livermore Shop site. The installation of the new used oil AST at the VineStreet Shop shall be operational within two days of the existing used oil ASTsystem being shut down. At least two weeks notice shall be given to theOwner prior to disconnecting and removal of the existing used oil AST

system. Contractor will cooperate fully with the Owner requirements duringthe work to minimize conflicts and to facilitate Owners usage of the site.

1.6. PROTECTION

A. The Contractor shall adequately protect the work site, adjacent property and thegeneral public during all phases of the project. Contractor shall be responsible forall damages or injury due to his action or negligence.

1.7. UTILITIES

A. Prior to commencing work, Contractor is required to verify and haveprofessionally identified the location of all site utilities and take precautions toprotect same during the work. Should damage result due to Contractornegligence, Contractor shall bear cost of repairs. Should existing utilitiesrequire relocation, Contractor shall note and include monies for said work inthe Bid.

1.8. QUALIFICATIONS

A. All work under this contract must be completed under the direction ofpersonnel experienced and licensed in inerting, removing, and disposing of

above-ground fuel storage tank systems.

1.9. INDEMNIFICATION

A. Contractor shall assume, indemnify and hold harmless the Engineer andLarimer County for and from any and all liability, loss and expense (includingWorkmens Compensation) resulting from loss of life or damage or injury topersons or property (including employees of either of the parties hereto)arising in whole or in part by reason of or in a way resulting from negligentoperations under this contract, whether such operations be by saidContractor(s), or by any Subcontractor(s), or anyone directly or indirectlyemployed by either of them.

2. EXECUTION

2.1. SAFETY PRECAUTIONS

A. Contractor shall adhere to the following safety precautions throughout theduration of the project:


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1) Avoid all sources of ignition during liquids removal from the tank and

tank removal.

2) Do not allow: smoking, use of an open flame, or spark generating toolswithin 50 feet of the tank or other potential source.

3) Place barricades and appropriate warning signs around the areaadjacent to the excavations to prevent the entry of unauthorized personsduring cleaning, tank removal preparation and tank removal.

4) After removing residual fluids, solids, and sludges from the tank andbefore removing the tank, test tank atmosphere for explosive range witha calibrated combustible gas indicator (CGI) instrument. The CGI shallnot read greater than 20% of the Lower Explosive Limit (LEL), and anoxygen level as close to zero percent as practicable.

5) At all times during the work, the Contractor shall have on site equipmentsuitable for the detection of organic/combustible vapors.

6) The Contractor shall have a Health and Safety Plan prepared prior toinitiation of the work. All field personnel and subcontractors shall haveread and signed the plan prior to conducting work on the project.

7) Owner nor Engineer shall not be responsible for the approval of the SiteSafety Plan nor for Contractors safety.

8) All on-site Contractor and Subcontractor personnel shall have completedOSHA 40-hour Health and Safety Course and annual OSHA 8-hourrefresher and carry certification of same at the site.

2.2. PRODUCT REMOVAL AND TANK INERTING

A. Contractor shall verify that all electrical sources to tanks, pumps, dispensersand instruments have been de-energized and disconnected prior tocommencing work.

B. Prior to commencing tank removal operations, Owner will attempt to empty

ASTs as completely as possible with existing pumping system.

C. Piping: Prior to commencing removal, all fuel and used oil piping shall becompletely drained by the Contractor with all product being flushed anddrained back into the storage tanks. Under no circumstances, shall productbe allowed to drain from the piping into the surrounding ground areas.


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D. Pump Out: All remaining liquids, solids, and sludges inside ASTs shall be

completely removed by the Contractor and disposed of in accordance withFederal and State regulations. Any material that is not considered recyclableshall be disposed of in accordance with applicable federal and state laws at

Contractors expense. Copies of Bill of Lading and chain-of-custody for thedisposal of hazardous materials shall be submitted to the Engineer.Contractor shall make allowances to remove and dispose of up to 500 gallonsof liquids, solids and/or sludges from the ASTs.

E. Pumps: All vacuum and transfer pump motors and suction hoses shall begrounded to the tank to prevent electrostatic ignition hazards. Onlyexplosion-proof or air driven pumps shall be allowed at the site.

F. Inerting:

1) Before tank removal, the tank shall be rendered inert with the addition ofdry ice, compressed nitrogen gas or carbon dioxide gas. Flammablevapors expelled from the tank during this process shall be vented aminimum of 12 feet above grade and three (3) feet above adjacent rooflines. The tank removals shall not proceed if atmospheric conditions willprevent the dispersal and dilution of the vapors discharged from thetank.

2) Inerting with Dry Ice: The vapors in the tank may be inert by adding dryice in the amount of 1.5 pounds per 100 gallons (minimum) of tankcapacity. Dry ice shall be crushed and distributed evenly over thegreatest possible area on the tank bottom. Avoid skin contact with dryice. As dry ice evaporates, flammable vapors may surround the area.Observe all safety precautions regarding flammable vapors.

3) Ignition: Shut down all open flame and spark producing equipmentwithin vapor hazard area (50 feet from tank). Ban smoking. Remove allnon explosion proof electrical and internal combustion equipment.Utilize only non sparking tools to be used on expose tank fittings.Minimize static electricity by grounding all working equipment.

4) During the inerting process, the oxygen level in the tank shall bechecked continuously with an oxygen and CGI meter. Achieve anoxygen level as close to zero percent as practicable. When the processis successfully completed, plug all openings, except for the vent line, andcommence tank removal.

2.3. TANK AND PIPING REMOVAL


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A. Safety: Exercise care during tank removal to minimize spark production.

Monitor the site atmosphere with a CGI during all activities.

B. Continued Testing: After initial purging/inerting, periodically continue testingboth in and around tank with CGI until tank is removed from site.

C. Removal: Contractor shall provide equipment of sufficient capacity to lifttanks and load on transportation vehicle. Dragging of tanks shall not beallowed.

D. Underground piping shall be excavated to allow vertical extraction. Pipingshall not be pulled horizontally from trench. All product lines shall beremoved in their entirety.

E. Engineer will screen selected soils samples as collected by the Engineer.

F. Should potentially contaminated soils be encountered during tank, foundation,and/or piping is removal , Engineer will instruct Contractor to separate cleanversus contaminated soils based on field screening measurements andobservations. Contractor shall stockpile potentially contaminated soils on aportion of property pending disposition of same. Potentially contaminatedsoils shall be placed atop 6-mil visqueen barrier and covered with secured 6-mil visqueen of sufficient strength suitable for protection against elements.Stockpiled soils shall be protected with a soil berm of sufficient design toprovide adequate protection from run-on storm water.

G. Disposition of any potentially contaminated soils shall be as directed byEngineer in conjunction with the Owner. Potentially contaminated soils willremain stockpiled on site pending completion of sampling, testing andapproval for disposal.

H. Backfill and Compaction: Perform backfill and compaction in accordance withSection 02223. Surface cover in the area of the existing fueling system willbe compacted road base/gravel to meet adjacent surface grade.

I. Materials Testing: Materials testing shall be performed in general accordancewith Sections 01400, 01410 and 02223.

J. Pavements: Repair or replace surface pavement in accordance with Section02575.


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2.4. SOIL SAMPLING

A. Confirmation soil sampling with in the over-excavation areas shall beperformed by the Engineer prior to any backfill operations by the Contractor.Contractor shall schedule and coordinate all work with Engineer.

2.5. TANK AND PIPING DISPOSAL

A. Removal: Upon removal and loading of the tank on an appropriatetransportation vehicle, the vehicle shall be removed immediately from the site.The tank(s) shall not be stored at the site overnight after removal.

B. Testing: Prior to shipping, test in and around tank with CGI to ensure thatflammable vapor concentration does not exceed safe levels for transportation.

C. Labeling: Label as to vapor state, vapor inerting treatment and date. Also,permanently label tank with 2-inch high letters as follows:

TANK HAS CONTAINED FLAMMABLE LIQUIDNOT GAS FREE

NOT SUITABLE FOR FOOD OR DRINKING WATER INTENDEDFOR ANIMAL OR HUMAN CONSUMPTION

D. Transportation: The tank shall be secured on a vehicle for transportation tothe disposal site.

E. U.L. tank labels shall be removed from tank and returned to the Engineer for

filing.

F. Disposal: Diesel fuel tank and piping removed as part of this project shall notbe sold for reuse. Final disposal shall be accomplished by cutting the tankand piping for scrap metal, or discarding in an acceptable and approved solidwaste disposal facility. Unleaded fuel tank will be transferred to Vine StreetShop.

G. Provide written certification to the Engineer of tank destruction within 20 daysof removal.

H. Contractor shall not be allowed to disassemble or cut up tanks for scrap metalon site.


3.1. PAYMENT: Payment for all work described in this section shall be included in thelump sum or unit prices in the Bid Schedule. The lump sum and unit prices shall


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include all costs for all labor, materials and equipment required to complete thework in accordance with the Plans and Specifications.

END OF SECTION


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SECTION 02222

EXCAVATION

1. GENERAL

1.1. DESCRIPTION: This section describes excavation of contaminated soil,uncontaminated overburden, concrete pump islands and concrete drive pads.


A. Related Sections

B. Execution

C. Payment


A. Section 02116 - Aboveground Storage Tank Removal

B. Section 02223 - Stabilization, Backfill, and Compaction

C. Section 02231 - Aggregate Base Course

2. EXECUTION

2.1. EXCAVATION

A. Over-excavation operations shall be performed in accordance with OSHAguidelines and all applicable State and local ordinances. At no time willpersonnel be allowed in the excavation unless such entry complies withOSHA guidelines and with applicable State and local regulations.

B. Pump islands, foundations and concrete drive pads shall be removed anddisposed of off-site in accordance with all Federal, State and localregulations.

C. The Contractor shall provide appropriate equipment to accomplish the Work.

D. Excavated material shall be field-screened by the Engineer using ambienttemperature head space analysis (ATHA) in an effort to segregate potentiallycontaminated soils from the overburden excavated material. Excavatedmaterial which is considered potentially contaminated shall be stockpiled bythe Contractor on a bermed 6-mil visqueen and covered with secured 6-mil


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2.2. UNDERGROUND OBSTRUCTIONS

A. Contractor shall notify each utili ty owner and request utilities to be fieldlocated by surface reference at least 48 hours prior to excavation. In the caseof a conflict, the proposed work may be modified, at the Engineer's discretion.

B. If utilities are encountered undamaged during excavation, the Contractor shallprotect the utility against damage and continue excavation as directed by theEngineer. If the utility is to be removed or replaced, the Contractor shallprovide temporary service and continue excavating, as directed by theEngineer.

C. If an underground utility is damaged during excavation, the Contractor shallimmediately repair utility or coordinate immediate repair with appropriateutility at no cost to the Owner or Engineer. The Contractor shall then continue

excavation as directed by the Engineer. The Contractor shall be responsiblefor restoring damaged utilities to original condition.

D. Approximate locations of subsurface utilities are shown on the Drawings;however, locations are not exact and additional subsurface utilities not shownon the drawings may be present at the site. The Contractor is responsible forfield verification of all subsurface utilities at the site prior to excavationactivities.


3.1. PAYMENT: Payment for all work described in this section shall be included in thelump sum or unit prices in the Bid Schedule. The unit prices associated with theexisting AST closure work shall not exceed the Maximum Reasonable Costs Excavation and Disposal Article 4, Part 3, 4-3-1 Colorado Petroleum StorageTank Fund when the contract is signed. The lump sum and unit prices shallinclude all costs for all labor, materials, and equipment required to complete thework in accordance with the Plans and Specifications.

END OF SECTION


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SECTION 02223

STABILIZATION, BACKFILL, AND COMPACTION

1. GENERAL

1.1. DESCRIPTION: This section describes preparation of subgrades; backfilling;compacting; and finish grading for excavation areas.


A. Related Sections

B. Materials

C. Execution

D. Payment


A. Section 02116 - Above-Ground Storage Tank Removal

B. Section 02222 - Excavation


D. Section 13205 - Above-Ground Storage Tank Installation

E. Larimer County Urban Area Street Standards (LCUASS) - Chapters 22 and23

2. MATERIALS

2.1. STABILIZATION MATERIAL

A. See attached Geotechnical Engineer Report, Road and Bridge LivermoreShop, dated December 8, 2011.


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2.2. EXCAVATION BACKFILL MATERIAL

A. Excavation backfill material shall be placed from the bottom of the excavationto the bottom of the base course and/or pavement subgrade in accordancewith applicable sections of LCUASS Chapter 22.

3. EXECUTION

3.1. QUALITY ASSURANCE

A. Compaction Testing: Engineer shall conduct compaction testing as required.

B. Soil compaction tests shall be performed in accordance with:

1) ASTM D698 - Standard Method of Test for Moisture Density Relations ofSoils.

2) ASTM D4253 and D4254 - Standard Method of Test for Relative Densityof Cohesionless Soils.

3) Density testing shall be performed in accordance with Section 01410 -"Testing Laboratory Services".

3.2. FIELD QUALITY CONTROL

A. Field Compaction Control

1) Density-moisture testing shall be performed in general accordance withSections 01400 and 01410.

2) Field tests will be conducted to verify compliance of compaction methodswith specified density and moisture in accordance with ASTM D2922 and

ASTM D3017 at frequencies and locations randomly selected by theEngineer.

3) Compaction tests for excavations shall be performed for each lift forevery 1,000 square feet of backfill area or per LCUASS Chapter 23,Table 23-1 for areas/structures within jurisdiction of the local governmententity.

4) If the Engineer determines that reliable and uniform results are producedby the Contractors construction techniques, the frequency of testing maybe decreased by the Engineer.


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B. Compaction shall be verified by ASTM D2922 to the following minimum

densities (reference ASTM D698 unless otherwise indicated) or as approvedby the Engineer:

1) Storage Tank Slab Bedding

a) Compacted to 95% of maximum dry density.

2) Excavation Area Backfill

a) Paved Roadways and concrete slabs - 95% of maximum drydensity.

b) All Other Locations: 90% of maximum dry density.

3) All cohesionless materials that cannot be determined by ASTM D698 willbe determined by ASTM D4253 and D4254 with a compaction minimumof 65 percent.

C. Moisture Content

1) All compacted backfill shall be within 2% of optimum water contentcohesive and 3% for granular soils as determined by ASTM D698 andperformed in accordance with ASTM D3017: or as approved by theEngineer.

2) Water shall be added to the material, or the material shall be harrowed,disced, bladed, or otherwise worked to insure a uniform moisturecontent, as specified.

D. Care shall be used when operating mechanical equipment in locations whereit may cause damage to buildings, property, utilities, or structures above orbelow ground.

3.3. BACKFILLING AND COMPACTION

A. Excavation areas shall be backfilled promptly after removing the abovegroundstorage tanks and/or contaminated soils, as directed by the Engineer.

B. Excavation areas shall be backfilled promptly after removing the concretedrive pads, pump islands and product lines, as directed by the Engineer.

C. Backfill material shall be deposited in uniform loose lifts not to exceed 8inches (prior to compaction) in all areas.


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1) Other thickness may be used with the prior written approval of the

Engineer.

D. Methods and equipment which are appropriate for the backfill of material shallbe employed.

1) Backfill equipment or backfilling methods which transmit damagingshocks to subsurface utilities are not to be used.

E. Compaction shall not be performed by jetting or water settling.

F. If compaction cannot be obtained with excavated material, backfill materialshall be imported, as directed by the Engineer.

G. Excess excavated materials and materials not suitable for backfill shall beremoved from the site, as directed by the Engineer.


4.1. Quantities of backfilling of excavation will be based on weight tickets frommaterials supplier.

4.2. Payment for all work described in this section shall be included in the unit prices inthe Bid Schedule. The unit prices associated with the existing AST closure workshall not exceed the Maximum Reasonable Costs Excavation and Disposal

Article 4, Part 3, 4-3-1 Colorado Petroleum Storage Tank Fund when the contract

is signed. The lump sum and unit prices shall include all costs for all labor,materials, and equipment required to complete the work in accordance with thePlans and Specifications. The Contractor is required to submit with each invoicethat includes backfill material, copies of all weight tickets associated with backfillbeing invoiced.

END OF SECTION


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SECTION 02231

AGGREGATE BASE COURSE

1. GENERAL


A. Related Sections

B. References

C. Products

D. Execution

E. Payment


A. Section 01400 - Quality Control


C. Larimer County Urban Area Street Standards (LCAUSS) - Chapters 22 and 23

1.3. REFERENCES

A. ASTM D698 - Test Methods for Moisture-Density Relations of Soils andSoil-Aggregate Mixtures, Using 5.5 lb. Rammer and 12 inch Drop.

B. ASTM D2922 - Test Methods for Density of Soil and Soil-Aggregate in Placeby Nuclear Methods (Shallow Depth).

C. ASTM D3017 - Test Methods for Moisture Content of Soil and Soil-AggregateMixtures.

1.4. SUBMITTALS

A. Submit proposed mix designs, along with delivering adequate samples ofmaterials proposed to be used which require testing seven days prior toinitiation of field work.

2. PRODUCTS

2.1. MATERIAL


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A. Aggregate base course for pavement subgrade shall consist of hard, durable

particles or fragments of stone or gravel crushed to the required sizes.Material shall contain an appropriate quantity of sand or other finely-dividedmineral matter which conforms to the requirements of AASHTO M147, and to

Section 703.03, CDOT Standard Specification Class 5 or Class 6 aggregatebase course. In addition, the material must have an R-value of 72 or greater,and must be moisture stable. When produced from gravel, not less than 60percent by weight of the aggregate retained on a No. 4 sieve shall consist ofparticles have at least one fractured face. Base material shall be free fromvegetable matter and lumps or balls of clay and when placed and compactedwill result in a firm, dense, unyielding foundation.

B. Coarse aggregate shall show a loss of not more than 50 percent when testedin accordance with AASHTO T96 Standard Method of Test for Abrasion of

Coarse Aggregate by use of the Los Angeles Machine.

C. Only aggregate from the Local Entity approved sources shall be used. Approval of sources will, at a minimum, consist of supplying documentedgradation, Atterberg limits, and R-value testing on an annual basis.

D. Grading Requirements:Percent Passing

Size Class 5 Class 61 100 -1 95-100 - - 100#4 30-70 30-65#8 - 25-55

#200 3-15 3-12

3. EXECUTION

3.1. EXAMINATION

A. Verify substrate has been inspected, gradients and elevations are correct, anddry.

3.2. AGGREGATE PLACEMENT

A. Place aggregate in maximum 8-inch uncompacted layers over the preparedsubstrate and machine compact, using equipment appropriate to the size andaccessibility of the area.

B. Add water to assist compaction. If excess water is apparent, removeaggregate and aerate to reduce moisture content.


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C. Use mechanical tamping equipment in areas inaccessible to compaction

equipment.

3.3. TOLERANCES

A. Scheduled Compacted Thickness: Within 1/4 inch.

B. Variation from True Elevation: Within 1/2 inch.


A. Field observations and testing will be performed under provisions of Section01410 and Section 02223.

B. Compaction and moisture content testing will be performed in generalaccordance with ASTM D2922 and ASTM D3017, respectively.

C. If tests indicate Work does not meet specified requirements, remove/rework,replace and retest.

D. Frequency of Tests: One (1) in-place density test per 1,000 square feet orportion thereof per lift placed per day or frequencies outlined in LCUASSChapter 23, Table 23-1 for areas/structures within jurisdiction of the localgovernment entity.

3.5. SCHEDULES

A. Compact placed aggregate materials to achieve 95 percent (95%) of the densityobtained by ASTM D698 and within plus or minus three percent (3%) of theoptimum moisture content indicated by that method, or as approved by theEngineer.


4.1. PAYMENT: Payment for all work described in this section shall be included in thelump sum or unit prices in the Bid Schedule. The lump sum and unit prices shallinclude all costs for all labor, materials and equipment required to complete thework in accordance with the Plans and Specifications.

END OF SECTION


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SECTION 02575

PAVEMENT REPAIR AND RESURFACING

1. GENERAL

1.1. DESCRIPTION: Repair or replacement of surface obstructions which theContractor must remove, such as pavement, drives, curbs, gutters, and similarsurfaces, as required to perform the work is described in this Section. Contractorhas the option of protecting instead of removing and replacing obstructions thatinterfere with the work.


A. Related Sections

B. Materials

C. Execution

D. Payment


A. Section 02223 - Stabilization, Backfill, and Compaction

B. Section 02231 - Aggregate Base Course


A. Contractor shall follow all applicable requirements and guidelines specified inLarimer County Urban Area Street Standards (LCUASS) that are not outlinedin the project specifications.

1.5. SUBMITTALS


2. MATERIALS

2.1. AGGREGATE, ASPHALT AND CONCRETE


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A. All materials, such as but not limited to aggregate, bituminous material, and concrete,

which are used in the repair of surface obstructions, shall conform to the LCUASS orrelevant specifications contained herein. In the event of a conflict between the LCUASSand these specifications, the LCUASS shall take precedence.

3. EXECUTION

3.1. ASPHALT AND CONCRETE, INCLUDING BASE AND GRAVEL SURFACING

A. Contractor shall remove, dispose of off-site, and restore asphalt, concretepavement, curbs, drives, and gravel surfacing in accordance with theLCUASS.

B. Concrete curbing, pads and drive pads associated with the existing pumpislands will be compacted road base/gravel to meet adjacent surface grade.

C. New aggregate road base surfacing and pavement shall be installed perLCAUSS, Chapter 25.

D. Concrete drives, curbs, gutters, sidewalks, and similar structures notassociated with the AST system, if damaged, shall be removed, disposed ofoff-site, and restored with the following minimum thickness:

1) Concrete driveways and slabs shall be eight inches thick.

2) Concrete gutters shall be six inches thick.

3) Concrete cross pans shall be eight inches thick.

All finished restorative work shall be inspected after completion of site construction activities by theEngineer. All finished restoration work shall be of equal or superior quality, condition and workmanship tothat of the original.


A. Subgrade, aggregate base course and backfill shall be compacted in accordance withSections 02223, 02231 or LCUASS Chapter 23, as applicable.

4. PAYMENT

4.1. MEASUREMENT: Measurement for pavement repair and resurfacing will bemade by the Engineer using in-place quantities.

4.2. PAYMENT: Payment for all work described in this section shall be included in theunit prices in the Bid Schedule. The unit prices shall include all costs for all labor,materials, and equipment required to complete the work in accordance with thePlans and Specifications. The Contractor is required to submit with each invoice


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SECTION 03100

CONCRETE FORMWORK

1. GENERAL


A. Related Sections

B. References

C. Design Requirements

D. Quality Assurance

E. Products

F. Execution

G. Payment


A. Section 03200 - Concrete Reinforcement

B. Section 03300 - Cast-in-Place Concrete

1.3. REFERENCES

A. ACI 318 - Building Code Requirements for Reinforced Concrete.

B. ACI 347 - Recommended Practice For Concrete Formwork.

C. PS 1 - Construction and Industrial Plywood.

1.4. DESIGN REQUIREMENTS

A. Construct formwork, shoring and bracing to conform to design and coderequirements; resultant concrete to conform to required shape, line anddimension.


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SECTION 03200

CONCRETE REINFORCEMENT

1. GENERAL.


A. Related Sections

B. References

C. Submittals


E. Coordination

F. Products

G. Execution

H. Measurement and Payment


A. Section 03100 - Concrete Formwork

B. Section 03300 - Cast-in-Place Concrete

1.3. REFERENCES

A. ACI 318 - Building Code Requirements For Reinforced Concrete.

B. ANSI/ASTM A185 - Welded Steel Wire Fabric for Concrete Reinforcement.

C. ASTM A615 Concrete Reinforcement with Steel.

D. CRSI - Concrete Reinforcing Steel Institute - Manual of Practice.

1.4. SUBMITTALS

A. Submit under provisions of Section 01300.


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SECTION 03300

CAST-IN-PLACE CONCRETE

1. GENERAL


A. Related Sections

B. References

C. Submittals


E. Field Samples

F. Products

G. Execution

H. Measurement and Payment


A. Section 03100 - Concrete Formwork

B. Section 03200 - Concrete Reinforcement

1.3. REFERENCES

A. ACI 301 - Structural Concrete for Buildings.

B. ACI 304 - Recommended Practice for Measuring, Mixing, Transporting andPlacing Concrete.

C. ACI 308 - Standard Practice for Curing Concrete.

D. ACI 318 - Building Code Requirements for Reinforced Concrete.

E. ASTM C33 - Concrete Aggregates.

F. ASTM C94 - Ready-Mixed Concrete.

G. ASTM C150 - Portland Cement.


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1.4. SUBMITTALS


1.5. QUALITY ASSURANCE

A. Perform Work in accordance with ACI 301.

B. Conform to ACI 305R when concreting during hot weather.

C. Conform to ACI 306R when concreting during cold weather.

1.6. FIELD SAMPLES

A. Provide under provisions of Section 01410. Coordinate with Section 03100.

2. PRODUCTS

2.1. CONCRETE MATERIALS

A. Cement: ASTM C150, Type I Normal, Type II - Moderate Portland-typecement, or Type I-II.

B. Fine and Coarse Aggregates: ASTM C33.

C. Water: Clean, potable and not detrimental to concrete.

2.2. CONCRETE MIX

A. Mix and deliver concrete in accordance with ASTM C94, Alternative No. 1.

B. Provide concrete to the following mix design:

Unit Measurement

Compressive Strength (28 day) 4,000 psiCoarse Aggregate 58-66 percent by volume

Fine Aggregate 34-42 percent by volumeWater/Cement Ratio (maximum) 0.50 by weight (mass) Aggregate Size (maximum) 3/4 inchSlump 2-4 inches

Air Content 5-8%

C. Use accelerating admixtures in cold weather only when approved byEngineer. Use of admixtures will not relax cold weather placementrequirements.


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3.3. CURING AND PROTECTION

A. Immediately after placement, protect concrete from premature drying,excessively hot or cold temperatures, and mechanical injury.

B. Maintain concrete with minimal moisture loss at relatively constanttemperature for period necessary for hydration of cement and hardening ofconcrete.


A. Field observation and testing will be performed in accordance with ACI 301and under provisions of Section 01410.

B. Provide free access to Work and cooperate with appointed testing firm.

C. Submit proposed mix design to observation and testing firm for review sevendays prior to commencement of Work.

D. Tests of cement and aggregates may be performed to ensure conformancewith specified requirements.

E. Four concrete test cylinders will be taken for every 75 or less cubic yards ofconcrete placed, with a minimum of four concrete test cylinders taken perpour.

F. One additional test cylinder will be taken during cold weather concreting,cured on job site under same conditions as concrete it represents.

G. One slump test will be taken for each set of test cylinders taken; and aircontent as applicable.

3.5. DEFECTIVE CONCRETE

A. Defective Concrete: Concrete not conforming to required lines, details,dimensions, tolerances or specified requirements.

B. Repair or replacement of defective concrete will be determined by theEngineer.

C. Do not patch, fill, touch-up, repair, or replace exposed concrete except uponexpress direction of Engineer for each individual area.



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4.1. PAYMENT: Payment for all work described in this section shall be included in the

lump sum or unit prices in the Bid Schedule. Those prices shall include all costsfor all labor, materials and equipment required to complete the work inaccordance with the Plans and Specifications.

END OF SECTION


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SECTION 13205

ABOVE-GROUND STORAGE TANK INSTALLATION

1. GENERAL

1.1. DESCRIPTION: The Work included under this section consists of furnishing alllabor, materials, services, equipment and appliances required to properly installone 6,000-gallon dual-compartment double-walled AST (4,000-gallon diesel fueland 2,000-gallon unleaded gasoline) and dispensing systems. The AST systemsshall be delivered to the site as complete factory pre-fabricated systems includingskid-mounted tank, pumping system, piping, fill ports, sensor ports, overfillprevention sumps, leak detection, secondary containment, and dispensers. Theinstallation also includes the following:

Concrete tank foundation/pads

Protective bollards

Site lighting (two yard lights with poles)

Electrical service

Miscellaneous equipment for a complete system as shown on the Drawings

Option of an Automatic Tank Gauging System

The Fuel Master sentry from the existing AST system.


A. Related Sections

B. Performance Requirements

C. Owner Occupancy

D. Protection

E. Utilities

F. Qualifications

G. Indemnification

H. Products


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J. Payment


A. Section 01570 - Traffic Control



1.4. PERFORMANCE REQUIREMENTS

A. The intent of this project is to provide and install a complete above-groundstorage tank system including: tanks, pumps, piping, supporting slab,dispensers, electrical service, and signage as required. The Contractor shallfurnish all labor, materials, supplies, equipment, transportation, travel, andservices necessary for a complete turnkey installation.

B. The Automatic Tank Gauging System shall be provided as an option for theOwner to have installed as part of the system installation. The Contractorshall provide a complete turnkey installation with or without the AutomaticTank Gauging System.

C. All work is to be performed in accordance with applicable Federal, State andlocal regulations including requirements of NFPA, EPA, OSHA, LarimerCounty, the Colorado Department of Labor and Employment Division of Oil

and Public Safety (OPS) and the Livermore Fire Department. All equipmentand related methods of installation shall be performed as per appropriateUniform Fire Codes, UL, NFPA-30 and 30A, and local regulations as isapplicable to each individual piece of equipment, system design, and/ormethod of installation.

1.5. OWNER OCCUPANCY

A. The Owner will occupy the site during the entire period of tank installationactivities. The existing diesel and gasoline storage and dispensing system atthe Livermore Shop will remain operational throughout the construction of

new facility. The installation of the new used oil AST at the Vine Street Shopshall be operational within two days of the existing used oil AST system beingshut down. At least two weeks notice shall be given to the Owner prior todisconnecting and removal of the existing used oil AST system. Contractorwill cooperate fully with the Owner during the work to minimize conflicts andto facilitate Owners usage of the site.

1.6. PROTECTION


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A. The Contractor shall adequately protect the work site, adjacent property and

the general public during all phases of the project. Contractor shall beresponsible for all damages or injury due to his action or negligence.

1.7. UTILITIES

A. Prior to commencing work, Contractor shall verify and have professionallyidentified the location of all site utilities and take precautions to protect sameduring the work. Should damage result due to Contractor negligence,Contractor shall bear cost of repairs. Should existing utilities requirerelocation, Contractor shall note and include monies for said work in the Bid.

1.8. QUALIFICATIONS

A. All work under this contract must be completed under the direction of

personnel experienced and registered in the installation of above-ground fuelstorage systems in the State of Colorado.

1.9. INDEMNIFICATION

A. Contractor shall assume, indemnify and hold harmless the Engineer and theOwner for and from any and all liability, loss and expense (includingWorkmens Compensation) resulting from loss of life or damage or injury topersons or property (including employees of either of the parties hereto)arising in whole or in part by reason of or in a way resulting from negligentoperations under this contract, whether such operations be by said

Contractor(s), or by any Subcontractor(s), or anyone directly or indirectlyemployed by either of them.

2. PRODUCTS

2.1. Above-Ground Storage Tank: Tank shall be skid-mounted, above-ground fuel storagetank systems furnished as a complete factory prefabricated system. One dual-compartment AST for diesel fuel and unleaded gasoline services will be installedper the specifications and drawings. Components of the tank package shall be asfollows:

A. Underwriters Laboratory (UL) standard for construction, UL2085 listed,double-walled tank with primary steel tank and exterior concrete vault assupplied by Eaton Metal Products, Fireguard Cylindrical tank or Engineerapproved equivalent. Tank capacity shall be 6,000-gallons - 4,000-gallons fordiesel fuel and 2,000-gallons for unleaded gasoline.


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B. Secondary containment shall be designed and constructed to allow for

installation of a liquid leak detector in the interstitial space via top mountedtube of minimum 2-inch diameter.

C. Vents: Both normal pressure relief and emergency vents shall beindependent of each other and shall be designed and constructed as perNFPA 30.

D. Grounding lug for connection to a ground connector shall be in accordancewith NFPA 78.

E. All metal risers, fittings, and components shall be of corrosion resistantmaterial or receive exterior finish to equal.

F. Tank structure in its entirety shall have a 30-year warranty to include primary

and secondary tank, concrete pad, and any exterior coating, cladding, orfinish material.

G. Tank shall be mounted on corrosion resistant supports a minimum of twoinches above concrete foundation/support pad.

H. All tank openings, including leak detection port, shall be threaded.

I. Tank shall have appropriate product and warning labels as to contents.

J. Tank shall be painted beige in color as approved by Engineer and Owner.

2.2. Pumps

A. Gasoline system will include a Red Jacket submersible turbine pumps-1/3 hp,60 HZ, single phase with added wiring for auxiliary equipment, or Engineerapproved equivalent.

B. Diesel system will include a Red Jacket submersible turbine pumps-3/4 hp, 60HZ, single phase with added wiring for auxiliary equipment, or Engineerapproved equivalent.

2.3. Dispenser:


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A. The gasoline system shall include a tank mounted Dresser-Wayne Reliance

S1 dispenser or Engineer approved equivalent.

B. The on-road diesel system shall include Dresser-Wayne Reliance G6200 twohose dispenser or Engineer approved equivalent.

C. Gasoline and diesel systems shall include an Engineer approved pulser andhigh hose retractor.

2.4. Nozzles: Utilize existing dispensers, Husky 1-GS automatic shut-off nozzle orEngineer approved equivalent. Nozzles will be connected to hoses with a minimumlength of 20 feet with OPW 66 REC reconnectable breakaway.

2.5. Liquid Level Gauge: System shall include visual liquid level gauge at the tank forproduct volume as supplied by Morrison Clock Gauge Model 818 or Engineer

approved equivalent.

2.6. Fill Port: Fill ports will include 2-inch male quick disconnect fitting with spil lcontainment sump of minimum seven gallons with integral reservoir and manualflow back drain system. Fill ports to be located at the north side of the tank. Fillports must be located within spill containment box so that connections made to fillport will be within the spill containment sump. Manual shut off valves and one wayvalves will be located in each fill port pipe adjacent to the spill containment sump.Each fill port pipe and cap will be painted appropriate color as follows;

Diesel fuel Green

Unleaded gasoline White

Overfill prevention shall be provided by installing a mechanical overfill prevention valve withinthe AST fill opening, OPW61 fSTOP three inch cylinder float or Engineer approved equivalent.

2.7. Automatic Tank Gauging System (ATG): Tank monitoring system for inventorymanagement, overfill protection, and leak detection as supplied by Veeder RootModel TLS-300C or Engineer approved equivalent shall be installed. ATG systemto be included as an option for installation. Owner will evaluate including the ATGsystem option.

A. Gage Veeder Root Series 8473 Magnetostrictive Inventory MeasurementProbe.

B. Sump Sensor Veeder Root Form No. 794380-352

C. Interstitial Sensors Veeder Root Form No. 794380-341

D. Overfill alarm with audible alarm at AST Veeder Root No. 790091-001 and790095-001


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2.8. Emergency Shut-off: An emergency shut off switch shall be located north of the AST

on the south side of the existing site building, as shown in the drawings, greaterthan 20 feet from the ASTs, and no further than 75 feet. A 20-pound ABC fireextinguisher in a weather resistant box shall be mounted adjacent to the emergency

shut-off switch. Audible overfill alarm with light and alarm acknowledge unit shallalso be located adjacent to emergency shut-off switch.

2.9. Foundation Slab: Slab shall be designed in accordance with tank manufacturersspecifications and criteria as shown on the attached foundation figure

2.10. Card Reader: The Fuel Master fuel management system and island terminal will berelocated from the existing AST system, to the south side of the new AST systemand face south, as shown in the drawings. Contractor will install all conduits forinstallation of wiring to install relocated Fuel Master fuel management system.

2.11. Card Reader Cabinet: The Fuel Master fuel management system terminal willrequire the installation of a new cabinet/shelter. The cabinet shall be constructed ofmetal, include a motion activated light, and powder coated in color to match the

AST. The approximate cabinet dimension is shown on Drawing 3, attached, orengineer approved equal.

2.12. Relocation of the Fuel Master fuel management system: Contractor is required toinstall electrical power and conduits as required for installation and hookup ofrelocated Fuel Master fuel management system.

2.13. Site Lighting Two yard lights with poles are to be installed for the Livermore Shop.Yard lights will be located on the east and west ends of the new AST, as shown in

the drawings. Motion detectors are to be installed on lights with adjustable timers tobe approved by Engineer and Owner, approximately 10 minutes.

3. EXECUTION

3.1. TANK INSTALLATION

A. Contractor shall supply all labor and materials necessary to provide acomplete turnkey installation of all equipment. The tank system, including

associated equipment, shall be installed in accordance with manufacturersspecifications.

B. The tank shall be placed on a reinforced foundation slab designed to supportthe fully loaded tank. Figure 4 shows the foundation design.

C. Contractor shall provide Owner all equipment brochures, manuals, warrantiesand operational material as necessary to maintain and satisfy regulatory


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requirements for record keeping. All materials shall be turned over to theOwners authorized representative at the time of start up and training portionof project.

D. Stormwater flow across the site should generally be to the southwest.Prevent pooling of stormwater on or around the AST installation.

3.2. SIGNAGE AND PROTECTION

A. Signage: Provide and install a professionally painted sign permanentlyaffixed adjacent to tank facility. Sign shall be painted on a metal backing ofsufficient size to include all required notices as shown below:

1) NO SMOKING WITHIN 50 FEET

2) TRANSPORT OPERATOR SHALL REMAIN WITH TRANSPORT AT ALLTIMES DURING UNLOADING OPERATIONS

3) DELIVERY TRANSPORT SHALL BE SECURED WITH WHEELCHOCKS DURING DELIVERY PROCESS

4) TRANSPORT OPERATOR SHALL VERIFY THAT VOLUME AVAILABLEIN TANK IS GREATER THAN AMOUNT OF PRODUCT TO BEDELIVERED PRIOR TO COMMENCING DELIVERY

5) TRANSPORT, DELIVERY VALVES, COUPLINGS AND HOSES SHALL

BE INSPECTED IMMEDIATELY PRIOR TO AND CONTINUALLYMONITORED DURING DELIVERY PROCESS FOR LEAKAGE ORDEFECTS

6) IN CASE OF EMERGENCY CONTACT 911 AND LARIMER COUNTYFLEET SERVICES AT (970) 498-5690

B. Sign shall be white letters two inches tall on brilliant red background. Metalbase material shall be pre-drilled with three holes each edge prior to paintingprocess. Sign shall be warranted against fading or chipping for a minimum offive years from date of installation.

C. Protection: Protect installation from vehicular intrusion with bollards aroundperimeter as shown on the drawings. Bollards shall be constructed of 6-inchdiameter by seven feet in length concrete filled steel pipe buried verticallywith three feet buried below grade. Bollards shall extend four feet abovegrade and be painted safety red. Finish collar at grade flush with surroundingpavements. Bollards are to be spaced as follows:


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Spacing between bollards four feet; Spacing between bollards and AST on the north and south sides minimum

three feet; Spacing between bollards and AST on the east and west ends minimum

three feet.

3.3. TESTING

A. Prior to completion, Contractor shall perform complete testing of all systemsas per manufacturers specifications and start up criteria. Contractor shallprovide verification of proper tightness testing of primary tank, secondarycontainment system, and piping in writing to Owner.

B. Contractor shall also provide Owner written verification on Contractorsletterhead that all systems have been installed in accordance with allmanufacturers and regulatory requirements as are applicable to that system.

3.4. WARRANTIES

A. Contractor shall warranty installation against faulty workmanship for a periodof not less than two years from installation. Contractor shall also provide allwarranties as applicable to each individual component. Tanks shall bewarranted by manufacturer for a minimum of 30 years from date of installationfor all defects resulting from manufacturing processes or materials relatingthereto. The 30 year warranty for tanks shall cover both primary andsecondary tanks and all manufacturer supplied accessories. The warranty

shall be delivered to Owner within ten days of completion of the project inwriting from tank manufacturer and Contractor.

3.5. START UP

A. Contractor shall advise Engineer and Owner of intended start-up date.Contractor shall provide training of on-site personnel in complete systemoperation and all aspects of accessories and facilities relating to the tankinstallation. Contractor shall notify Engineer and Owner a minimum of 72hours prior to intended start up.

3.6. HOUSE-KEEPING

A. At all times the premises shall be kept clean and neat. No debris shall beallowed to remain on site overnight at any time during the project. At thecompletion of the project all debris shall be removed from the site as part ofthis contract. All surrounding earth work shall be left in natural or improvedcondition to match surrounding terrain as per site plan for this location.


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4. PAYMENT

4.1. PAYMENT: Payment for all work described in this section shall be included in thelump sum or unit prices in the Bid Schedule. The lump sum and unit prices shallinclude all costs for all labor, materials and equipment required to complete thework in accordance with the Plans and Specifications.

END OF SECTION