Att_A_-_cn32157_EGLF_Extraction_Well_Destruction.pdf

COUNTY OF SACRAMENTO

DEPARTMENT OF WASTE MANAGEMENT AND

RECYCLING

SPECIAL PROVISIONS

ELK GROVE LANDFILL EXTRACTION WELL

DESTRUCTION

CONTRACT NO. 32157

NOTE: The County of Sacramento Standard Construction Specifications dated November 2024, are hereby made a part of these Specifications. A copy of the Standard Construction Specifications may be downloaded from the County website at www.saccountyspecs.net.

Keith Goodrich, DIRECTOR

DEPARTMENT OF WASTE MANAGEMENT AND RECYCLING

SPECIAL PROVISIONS

ELK GROVE LANDFILL EXTRACTION WELL DESTRUCTION

WATERMAN ROAD, ELK GROVE CA 95624

CONTRACT NO. 32157

PROJECT MANAGER

Mike Koza

County of Sacramento Department of Waste Management and Recycling

10863 Gold Center Drive Rancho Cordova, CA 95670

Email: kozam@saccounty.gov mailto:kozam@saccounty.gov

DIVISION 1 - GENERAL REQUIREMENTS

SECTION 01000 - SPECIAL PROVISIONS

1.01 BACKGROUND

Sacramento County Department of Waste Management & Recycling (DWMR) plans to destroy four extraction wells on the perimeter of the closed (1978) Elk Grove Landfill. The extraction well locations are shown on Attachment C.

A well drilling contractor (Contractor) will be engaged per this contract to destroy and remove the vaults associated with these four extraction wells.

1.02 PROJECT LOCATION

Elk Grove Landfill west of Waterman Road, 0.3 mile south of intersection of Waterman and Bond Roads Elk Grove, CA 95624

1.03 SCOPE OF WORK

SACRAMENTO COUNTY WELL PERMIT REQUIRED – Prior to the Contractor’s mobilization to the Project site, the Contractor will prepare the extraction well destruction permits and will provide the Engineer with a copy of the application for review prior to submittal to the Sacramento County Environmental Management Department (EMD). The Contractor shall make corrections as necessary.

Following submittal to the EMD, the Contractor will provide a copy of the signed permit to the Engineer.

The Contractor shall sign a statement to the Engineer at that time that the Contractor understands that the Retention (see Section 8-7 of the Sacramento County Standard Construction Specifications) will not be paid to the Contractor until the provisions of Section 8-7 are satisfied and until the Contractor provides completed copies of the State of California Well Completion Reports. The fee for the permit issued by the EMD will be paid for by the Contractor.

GENERAL PROVISIONS – The work under this contract includes the pressure grouting, overdrilling, and removal of the vault boxes and associated equipment within the vault for four extraction wells. The extraction wells are designated EW-1, EW-4, EW-5, and EW-6. Access to water will be from a hydrant at Kiefer Landfill or hose bib at the Sheriff station adjacent to Elk Grove Landfill at 9250 Bond Road and will need to be transported to each drill site, as needed.

Following procurement of permits and prior to any field activities, the drilling contractor will contact Underground Service Alert (USA) for clearance of underground utilities. The County will mark the location of the wells prior to the Contractor contacting USA.

The methods and procedures to be used during the pressure grouting, overdrilling, and removal of the vaults for the project is presented in the following sections.

WELL DESTRUCTION AND DRILLING – The extraction wells will be destroyed using pressure grouting methods and the upper five feet of the borehole will be overdrilled using hollow stem auger.

Disposal of drill cuttings and any refuse generated is discussed in Section 1.25. Construction details for each extraction well are included in Attachment E.

The four extraction wells will be pressure grouted by a California C-57 licensed drilling contractor. A tremie device or equivalent will be lowered to the bottom of the well casing and raised as neat cement grout is placed into the well to the surface. Approximately 25 pounds per square inch of pressure will be applied for five minutes to force the grout through the screened interval and into the sand pack. Using a hollow stem auger, the upper 5-feet of the well will be over drilled to remove the well casing and annular material. The subsequent hole will be backfilled with neat cement grout and the upper six inches will be covered with soil or equivalent to match the existing and surrounding surfaces.

VAULT REMOVAL – The vaults associated with each of the extraction wells will be removed by the Contractor and backfilled with soil or equivalent to surface grade to match the existing and surrounding surfaces. Residual small diameter compressed air piping and its supports in two of the vaults must also be removed. Photos for each extraction well vault are included in Attachment D. Since the EW-6 vault is located in a parking lot, its vault can remain, in which case the vault must be filled with grout to just below the vault lids, which can be left in place. Otherwise, the EW-6 vault will have to be removed and proper road base and pavement constructed.

Waste associated with the well destructions will be disposed of by the drilling contractor.

1.04 GENERAL LIABILITY INSURANCE

General Liability Insurance will be required for this project as specified in Section 3-9.01, “General Liability,” of the Standard Construction Specifications with the following limits of liability:

Each Occurrence Two Million Dollars ($2,000,000) Personal & Advertising Injury Two Million Dollars ($2,000,000) Products and Completed Two Million Dollars ($2,000,000)

Operations Aggregate General Aggregate Four Million Dollars ($4,000,000)

1.05 BUILDER'S RISK INSURANCE

Builder's Risk Insurance will not be required for this project.

1.06 CONTRACTOR’S POLLUTION LIABILITY INSURANCE

Contractor’s Pollution Liability Insurance (CPL) will be required as specified in Section 3-9, “Insurance,” of the Standard Construction Specifications.

1.07 TIME OF COMPLETION

The time of completion of all work described in this contract shall be 45 calendar days commencing as specified in Section 7-1, “Beginning of Work,” of the Standard Construction Specifications.

1.08 LIQUIDATED DAMAGES

Liquidated damages shall be $500 for each calendar day delay. Refer to Section 8.10 of the County Standard Construction Specifications.

1.09 PRE-BID CONFERENCE

A pre-bid conference will be held as noted in the NOTICE TO CONTRACTORS.

1.10 STANDARD CONSTRUCTION SPECIFICATIONS

The County of Sacramento 2024 Standard Construction Specifications, adopted by the Board of Supervisors, are hereby made part of these specifications. A copy of the Standard Construction Specifications may be obtained at the cashier's window in Room 101 of the County Administration Building, 827-7th Street, Sacramento.

The project specifications use a modified version of the Construction Specifications Institute (CSI) format that is comprised of 16 divisions. The CSI format divisions shall not operate to make the County an arbiter to establish subcontract limits between Contractor and/or subcontractors. The General Contractor is responsible to the County for all phases of destruction and delivering a complete job.

1.11 ACCURACY OF DRAWINGS AND SPECIFICATIONS

The existing conditions depicted on the drawings and specifications are developed from record information. Exact locations, distances, dimensions, elevations, etc., shall be governed by actual field conditions and verified by the contractor. The Engineer shall be notified of any discrepancies found prior to the start of work in that area.

1.12 STORAGE OF SUPPLIES, MATERIALS, EQUIPMENT, ETC.

The Contractor shall obtain the prior approval of the Engineer for any area or space required for Contractor's storage during destruction operations. Materials, equipment, etc., shall not be piled or stored in any location that would interfere with the conduct of normal functions of the adjacent facilities, and shall not constitute a hazard to persons or property. The Contractor shall install any required safety precautions such as signs, danger signals, lanterns, barricades, etc., during destruction operations.

1.13 ADDITIONAL SETS OF CONTRACT DOCUMENTS

Following execution of the Contract, the County will provide electronic files in .pdf format of contract specifications, drawings, and addenda to the Contractor. Hard copy sets of destruction document sets will not be furnished.

1.14 SIGNS

No advertising signs of any kind will be permitted except by written permission of the Engineer.

1.15 CONTRACTOR'S FIELD OFFICE

The site is a closed landfill and there is no space for a field office.

1.16 PROTECTION OF WORK, PERSONS, AND PROPERTY

Not Applicable

1.17 TEMPORARY SERVICES

A. Water

Contractor shall provide their own water for use on site. Access to water will be from a hydrant at Kiefer Landfill or hose bib at the Sheriff station adjacent to Elk Grove Landfill at 9250 Bond Road and will need to be transported to each well destruction site, as needed.

B. Electrical Power

Contractor shall provide any electrical power required from its own portable equipment.

C. Telephone

Contractor may arrange for and install telephone service for his own use. The Contractor shall not use County telephones.

D. Field Toilets

1. The Contractor shall furnish, install, and remove at completion of the job, all sanitary; i.e., portable toilet facilities required for the completion of the job. The type and location of the facilities shall be subject to acceptance by the Engineer.

2. All sanitary facilities shall be made available for use by all workers, subcontractors, consultants, and County personnel associated with the project.

3. The Contractor shall maintain sanitary facilities in a proper, safe, operating, and sanitary condition for the duration of the work. Facilities shall be provided in sufficient quantities to comply with CAL-OSHA regulations.

4. Existing facilities at site, other than the landfill entrance rest area, shall not be used by contractor's employees.

E. Fences, Barricades, Warning Signs, And Lights

1. To confirm to CAL-OSHA regulations, other State of California and local codes, rules, regulations, and ordinances for protection of workers, public and private property, provide, install and maintain barricades, warning devices and other protection required therefore.

2. Contractor to provide temporary fencing, etc., as required to protect material storage and equipment from theft, and vandalism.

F. Contractor's Access, Work and Storage Areas

1. The contractor shall coordinate with the Project Manager as to where the set-up staging area will be located.

1.18 EROSION, SEDIMENT, AND WATER POLLUTION CONTROL

The Contractor shall prepare a water pollution control plan, as required by the Sacramento County Standard Construction Specifications, Section 10-4.06, and meeting the satisfaction of the Engineer. Costs for all labor, equipment, and materials associated with preparation of a satisfactory water pollution control plan shall be paid for in the unit price bid for the various items of work, and no additional compensation will be allowed therefor.

1.19 SPECIAL SECURITY REQUIREMENTS

The Contractor's workers and equipment shall be limited to the work areas as designated by this contract.

1.20 SCHEDULE OF WORK AND LIMITATIONS

A. Operations and Site Access

The destruction sites for this Project have no operations.

All of the extraction wells are not located within the landfill footprint. Extraction Well EW-1 is located in a grass area of Jack Hill Park immediately south of Elk Grove Landfill. Extraction well EW-4 and EW-5 are located west of the landfill and Laguna Creek. Extraction well EW-6 is located within the Sheriff’s station parking lot. The extraction well casing and the well vault sidewall range between approximately 2-inches to 9.5-inches apart. The overdrilling of the extraction well will need to be planned for accordingly. At EW-6, overdrilling only need be conducted to the edge of the vault and annular material beyond the edge of the vault need not be removed; however, all well casing must be removed.

B. Coordination of Contract Work

The Contractor shall coordinate the work of this contract through the Project Manager assigned by the

County or Engineer. A pre-destruction work conference will be conducted in accordance with the County of Sacramento, Standard Construction Specifications, Section 7.3, Preconstruction Conference and Progress Meetings. The contractor shall submit a destruction schedule at this conference in accordance with the County of Sacramento Standard Construction Specifications, Section 7.5.01. Use of MS Project or Primavera P6 is not required for the preparation of this schedule.

C. Site Conditions

The Contractor shall be responsible for having determined the site conditions to his or her satisfaction, prior to the submission of a bid, the nature and location of the work, the type and quantity of materials to be encountered, the character of equipment and facilities needed preliminary to and during the execution of the work, the general and local conditions, and all other matters which can in any way affect the work under this Contract. The prices established for the work to be done will reflect all costs pertaining to the work. Any claims for extras based on site conditions will not be allowed.

1.21 EXISTING UTILITIES

Not Applicable

1.22 ALLOWABLE TIMES AND HOURS OF WORK

Work may be performed between the hours of 7 a.m. through 6 p.m., 7 days per week, excluding Legal Holidays.

1.23 NO WAIVER OF GOVERNMENT CLAIM PROCESS

No statement in this Agreement shall constitute a waiver of government claim filing requirements pursuant to Title 1, division 3.6 of the California Government Code or as otherwise set forth in local, state and federal law.

1.24 DISPOSAL OF REFUSE, DRILL CUTTINGS AND DEBRIS

The extraction well locations are completely outside the landfill; therefore refuse will not be encountered.

The Contractor shall transport all debris cuttings from the overdrilling of the upper 5-feet of the extraction well and other cuttings and debris from the vault removal as uncontained bulk material.

Costs for all labor, equipment, and materials, associated with the transport of debris shall be paid for in the various bid items of this project, and no additional compensation will be allowed therefor.

1.25 SUBMITTALS

Submittals shall be submitted within 15 Calendar days of execution of the contract, or prior to when the material will be ordered.

Copies of all submittals shall be furnished electronically, an electronic copy will be returned after review.

If an item of work is required to be installed in accordance with the manufacturer's recommendations, the Contractor must furnish electronically, and a copy will be returned after review of the manufacturer's installation recommendations to the Agency at least 15 Calendar Days prior to starting the installation.

This submittal list is provided for the Contractor’s convenience and may not represent all submittals required by the contract documents. The Contractor is ultimately responsible for identifying and providing all required submittals. County's/Engineer's approval of submittals shall not relieve Contractor from responsibility for any resulting deficiencies or related unapproved deviations from these Specifications.

The following submittals shall be made:

Contract Specific Safety Plan Water Pollution Control Plan (WPCP)

1.26 RECORD DRAWINGS SPECIFICATIONS

A. Maintain on the destruction site, one set of the following record documents, which record actual revisions to the work:

1. Drawings

2. Specifications

3. Addenda

4. Request for information

5. Field instructions

6. Change orders and other modifications to the contract.

B. Ensure entries are complete and accurate, enabling future reference by the County.

C. Store record documents separate from documents used for destruction.

D. Keep record information concurrent (within 7 days) of destruction progress.

E. Progress Record Documents

Record Documents shall include all subcontractor changes and shall be kept current as the work progresses. Progress documents shall be made available and subject to review and approval by the Engineer and the Project Manager at each progress payment.

F. Final Record Documents

The final Record Documents shall consist of the Well Completion Reports and records of the amount of grout placed into the well to the surface. The Work will not be formally accepted until the Record Documents are reviewed and accepted by the Engineer and Project Manager.

1.27 HEALTH AND SAFETY PLAN

The Contractor shall prepare a contract specific Health and Safety Plan, as required by California law, Sacramento County Code, and the Sacramento County Standard Construction Specifications (12-1.01.B), and meeting the satisfaction of the Engineer. The Health and Safety Plan shall include notification of USA 2 to14 days prior to drilling (800) 227-2600 or www.USANorth.org.

Costs for all labor, equipment, and materials associated with preparation of a satisfactory Health and Safety Plan shall be paid for in the unit price bid for the various items of work, and no additional compensation will be allowed therefor.

1.28 MEASUREMENT AND PAYMENT

In addition to the retention provided for in Sections 8-7, 8-8 and 8-9 of the Standard Construction Specifications, the County shall retain ten percent (10%) of each progress or final payment when Record Documents are found not to be in compliance with the contract requirements. Full compensation for Record Documents is included in the prices paid for the various items of work and no separate payment will be made.

END OF SECTION

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