Revised_Technical_Specifications_(002)_Section_01_20_00_Rev_Section_5.17.24.pdf

TECHNICAL

SPECIFICATIONS

Revised 5.17.24

Sarasota County Central County Solid Waste Disposal Complex (CCSWDC) 2024 Phases I & II LFGCCS

Technical Specifications

Sarasota County Solid Waste 4000 Knights Trail Road Nokomis, FL 34275

Florida Board of Professional Engineers Certificate No. 00004892

File No. 09216113.16 |March 2024 3922 Coconut Palm Drive, Suite 102

Tampa, FL 33619

(813) 621‐0080

3/4/2024

CCSWDC 2024 Phases I & II LFGCCS

Issued for Bid Technical Specifications

Submitted to:

Sarasota County Solid Waste

4000 Knights Trail Road

Nokomis, FL 34275

Prepared by:

SCS ENGINEERS

3922 Coconut Palm Drive, Suite 102 Tampa, FL 33619

(813) 621-0080

March 2024

File No. 09216113.16

Daniel R. Cooper, P.E.

No. 66440

Sarasota County CCSWDC Phase II & III LFGCCS Expansion

Table of Contents

01 01 00 Summary of Work 01 02 50 Measurement and Payment 01 05 00 Site Conditions Surveys 01 20 00 Project Meetings 01 30 00 Contractor Submittals 01 31 10 Construction Schedule 01 40 00 Quality Control 01 50 00 Temporary Facilities 01 50 50 Mobilization and Demobilization 01 53 00 Protection of Existing Facilities 01 56 80 Temporary Erosion and Sedimentation Control

01 60 00 Material and Equipment

01 70 00 Contract Completion Start-Up and Closeout 01 73 00 Project Record Documents

01 80 00 Health and Safety Requirements 02 41 16 Refuse Handling, Storage, and Disposal 02 90 00 Seeding and Sodding 15 09 00 LFG Pipe and Pipe Fittings 16 00 00 LFG Collection System Appurtenances 16 02 00 LFG Condensate Management System 16 03 00 LFG Extraction Wells and Wellheads 31 20 00 Excavating, Trenching, Backfilling, and Grading

HDR Specifications

Please note that the following specifications were prepared by HDR Engineering, Inc. (HDR), dated October 2011 with revisions dated March 2013. The HDR specifications have been approved by the Florida Department of Environmental Protection as part of the Phase I Closure Construction Certification. Please refer to the HDR CQA Plan listed in Part B for the applicable portions of the Work.

02200 Earthwork - Landfills

02240 Drainage Sand Layer - Overlay Liner System

02771 Thermoplastic Polyolefin (TPO) Geomembrane

02776 HDPE Geomembrane Liner System

02777A Drainage Composite - Overlay Liner System

02778 Geotextiles

Construction Quality Assurance (CQA) Plan

CCSWDC Phase II & III LFGCCS Expansion

Table of Contents

Central County Solid Waste Disposal Complex Phase I Class I Landfill Closure and Landfill Gas Collection System Construction Quality Assurance Plan – HDR Engineering, October 2010, with revisions dated March 2013.

2024 PHASES I AND II LFGCCS EXPANSION

SUMMARY OF WORK

01 01 00-1

SECTION 01 01 00

PART 1 - GENERAL

1.1 WORK COVERED BY CONTRACT DOCUMENTS

A. The WORK for this CONTRACT consists of the expansion of the existing landfill gas collection and control system (LFGCCS) in Phases I and II at the Central County Solid Waste Disposal Complex (CCSWDC) landfill located in Sarasota County (COUNTY) referred to as the 2024 Phases I and II LFGCCS Expansion (PROJECT). The WORK to be performed by the CONTRACTOR consists of, but is not limited to, furnishing all labor, materials, equipment, tools, transportation, incidentals and operations, and performing all WORK necessary to complete the PROJECT in accordance with the CONTRACT DRAWINGS and

SPECIFICATIONS.

B. The WORK for the PROJECT includes, but is not limited to,

1. Construction staking/system layout/surveying prior to construction.

2. Installing below grade HDPE LFG laterals and header pipe. Pipe appurtenances also to be installed include, but are not limited to, fittings, isolation valves, connections, sumps, leachate cleanouts, access risers, monitoring ports, and blind flanges.

3. Installing below grade HDPE air supply lines, condensate discharge lines, and air line isolation and blowoff valves.

4. Tie-ins to existing LFG header system. Tie-ins include, but are not limited to, laterals, header, leak detection and collection manholes, and leachate cleanouts.

5. Gas well installation and redrills in Phases I and II as shown in the drawings.

6. Installing gas wellheads, including fittings, valves, tubing, hoses, clamps, valves, regulators and filters, and related appurtenances.

7. HDPE geomembrane repairs and boot installations as required in Phase I.

8. Borrow soil area excavation, loading, hauling, unloading/dumping within project area, placement, spreading, and finish grading to achieve design grades.

9. Grading, seeding & sodding, and restoring site conditions.

10. Conformance surveying.

11. Providing as-built documentation (record drawings).

01 01 00-2

1.2 WORK BY OTHERS

A. WORK may be conducted at the PROJECT site by other contractors during the performance of the WORK under this CONTRACT. The CONTRACTOR shall conduct its operations to minimize interference of other contractors and shall cooperate fully with such contractors and the PROJECT representatives to provide continued safe access to perform their respective contracts and normal landfill operations.

1.3 CONTRACTOR USE OF PREMISES

A. Limit use of premises for work, storage, and access to allow work by other contractors, COUNTY occupancy, and normal landfill operations.

B. Work Days: Allowable work times shall be Monday through Friday from 7:00 a.m. to 5:00 p.m., excluding Saturdays, Sundays and County observed Holidays.

CONTRACTOR shall request in writing to the COUNTY 48 hours notice prior to Saturday, Sunday or County observed Holiday work, and work shall be limited to 8 hours maximum on such days, if approved by the COUNTY.

C. Access: No later than 5 days after notice to proceed, the CONTRACTOR shall arrange with the COUNTY a sequence of procedures, means of access, space for storage of materials and equipment, and use of approaches and roadways. CONTRACTOR’s use of the premises shall be confined to the areas approved by the COUNTY.

D. Smoking: Smoking is prohibited at the CCSWDC.

E. CONTRACTOR shall not dispose any refuse on site without approval of the COUNTY and in accordance with Section 02 41 16, Refuse Handling, Storage, and Disposal.

F. CONTRACTOR shall coordinate with the COUNTY for available area to locate CONTRACTOR’s trailer. Non-potable water, septic tank, and electrical services are already available. If using the electrical service, the CONTRACTOR is responsible for coordinating with the electric company for any connections and pay for electrical services at no additional cost to the COUNTY. Refer to Section 01 50 10, Temporary Utilities.

1.4 WORK HOURS

A. Regular working hours are defined as up to 10 hours per day, Monday through Friday, beginning no earlier than 7:00 a.m. and ending no later than 5:00 p.m., excluding Saturdays, Sundays and COUNTY observed Holidays.

B. Construction Quality Assurance (CQA) shall be the responsibility of the COUNTY and CQA CONSULTANT who will act as the COUNTY'S representative. The CQA CONSULTANT is a party independent of the CONTRACTOR'S, geosynthetics MANUFACTURER and/or INSTALLER, and is responsible for field testing, observing, and documenting activities related to the construction and/or permit documents and the CQA Plan. The CQA CONSULTANT will provide a full-time CONSTRUCTION QUALITY ASSURANCE REPRESENTATIVE (CQAR) who will observe construction activities.

01 01 00-3

C. Periodic unscheduled WORK hours on weekdays will be permitted provided that 48 hours notice is provided to the COUNTY. Maintenance and cleanup may be performed during hours other than regular working hours.

D. At the COUNTY'S option, unscheduled WORK costs may either be deducted from the CONTRACTOR'S monthly payment request or deducted from the CONTRACTOR'S retainage prior to release of final payment.

1.5 COUNTY OCCUPANCY AND LANDFILL OPERATIONS

A. The CONTRACTOR shall cooperate with the COUNTY during construction operations to minimize conflicts with COUNTY work and facilitate COUNTY usage. The CONTRACTOR shall perform the WORK so as not to interfere with the COUNTY'S operations, maintenance, environmental monitoring, and other COUNTY activities at the site.

1.6 SITE CONDITIONS

A. Existing Grades - The existing grades may vary from those indicated on the CONTRACT DRAWINGS due to landfill settlement and ongoing filling operations.

B. Existing Features - The contours and spot elevations shown on the CONTRACT DRAWINGS reflect the best available information regarding existing site conditions at the time the design was prepared.

C. Preconstruction Survey - The CONTRACT DOCUMENTS require the CONTRACTOR to prepare a preconstruction survey prior to beginning WORK. Refer to Section 01050 Site Conditions Surveys for requirements.

1.7 LINES AND GRADE

A. All WORK shall be done to the lines, grades, and elevations shown on the CONTRACT

DRAWINGS.

B. Topographic survey information (north, the grid, and the coordinates shown) is referenced to the West Zone of the Florida State Plane Coordinate System, NAD 83, 1999 Adjustment. Elevations are to the National Geodetic Vertical Datum of 1929 (NGVD1929). Basic horizontal and vertical control points have been established. These points shall be used as datum for the WORK. All additional survey, layout, and measurement WORK shall be performed by the CONTRACTOR as a part of the WORK.

C. The CONTRACTOR shall provide experienced instrument personnel, competent assistants, and such instruments, tools, stakes, and other materials required to complete the survey, layout, and measurement WORK. In addition, the CONTRACTOR shall furnish, without additional cost to the COUNTY, competent personnel from its force and such tools, stakes, and other materials as the ENGINEER may require in establishing or designating control points, checking survey, layout, and measurement of WORK performed by the CONTRACTOR.

01 01 00-4

1.8 REFERENCE STANDARDS

A. Reference to the standards of any technical society, organization, or association or to codes of local or state authorities shall mean the latest effective standard, code, specification, or standard adopted and published at the date of receipt of bids, unless specifically stated otherwise.

1.9 ERRORS AND/OR OMISSIONS IN PLANS AND SPECIFICATIONS

A. The intent of the SPECIFICATIONS is to outline or indicate the items of WORK, or both, which cannot be readily shown on the CONTRACT DRAWINGS and further to indicate the types and qualities of materials. The CONTRACT DRAWINGS and SPECIFICATIONS shall be considered as being complimentary and items or WORK mentioned or indicated in one and not in the other shall be included as if mentioned in both.

B. Should the CONTRACT DRAWINGS disagree in themselves or with the SPECIFICATIONS the better quality or greater quantity of WORK or materials shall be estimated upon and shall be provided.

PART 2 - PRODUCTS

This Section is Not Applicable.

PART 3 - EXECUTION

This Section is Not Applicable.

END OF SECTION

2024 Phases I and II LFGCCS Expansion

MEASUREMENT AND PAYMENT

01 20 00-1

PART 1 - GENERAL

1.1 DESCRIPTION

SECTION 01 20 00

MEASUREMENT AND PAYMENT

A. The CONTRACTOR shall receive and accept the compensation provided in the CONTRACT as full payment for furnishing all labor, equipment, and materials and for performing all construction/operations necessary to complete the WORK as described in the CONTRACT, and in full payment for all losses or damages incurred during the WORK, for any discrepancies between actual and estimated quantities, or from any unanticipated difficulties which may arise during the WORK until final acceptance by the OWNER.

B. Payment for the various Items on the CONTRACTOR'S Bid Form, as further specified herein, shall include all compensation to be received by the CONTRACTOR for furnishing all tools, equipment, supplies, and manufactured articles and for all labor, operations, supervision, overhead, profit, and incidentals appurtenant to the Items of WORK being described as necessary to complete the various Items of the WORK all in accordance with the requirements of the CONTRACT DOCUMENTS, including all appurtenances thereto, and including all costs of compliance with the regulations of public agencies having jurisdiction, including Safety and Health Requirements of the Occupational Safety and Health Administration (OSHA) of the U.S. Department of Labor.

C. No separate payment will be made for any Item that is not specifically set forth on the CONTRACTOR'S Bid Form and all costs therefore shall be included in the prices named on the CONTRACTOR'S Bid Form for the various appurtenant Items of WORK. Payment for complying with safety requirements shall be included in the CONTRACT unit price paid for the various Items of WORK wherein it is required, and no separate payment will be made.

D. The total Bid amount shall cover all WORK required by the CONTRACT DOCUMENTS. All costs in connection with the proper and successful completion of the WORK, including furnishing all materials, equipment, supplies, and appurtenances; providing all construction equipment and tools; including all costs and expenses for taxes, commissions, transportation charges and expenses, permit fees, patent fees, royalties, handling and tests; and performing all necessary labor and supervision to fully complete the WORK shall be included in the CONTRACTOR'S Bid. All WORK not specifically set forth as a Pay Item on the CONTRACTOR'S Bid Form shall be considered a subsidiary obligation of the CONTRACTOR and all costs in connection therewith shall be included in the Unit Prices and/or the Lump Sum Price bid.

E. The quotations for the various Items of WORK are intended to establish a total price for completing the WORK in its entirety. Should the CONTRACTOR feel that the cost for any Item of WORK has not been established by the CONTRACTOR'S Bid Form, shall include the cost for that WORK in some other applicable Bid Item, so that his proposal for the PROJECT does reflect his total price for completing the WORK in its entirety.

F. All estimated quantities stipulated on the CONTRACTOR'S Bid Form are approximate and are to be used only:

01 20 00-2

1. As a basis for estimating the probable cost of the WORK, and

2. For the purpose of comparing the Bids submitted for the WORK. The actual amount of WORK done and materials under Unit Price Items may differ from the estimated quantities. The basis of payment for WORK and materials will be the actual amount of WORK done and materials furnished unless it exceeds the estimated quantities in which case a change order must be approved prior to the WORK being conducted for quantities exceeding the estimated quantity.

G. The CONTRACTOR shall field verify all quantities and dimensions shown on the CONTRACT DRAWINGS or contained in the SPECIFICATIONS.

H. The CONTRACTOR shall be responsible for establishing contracts with its subcontractors, which have a measurement and payment in accordance with this Section. If the CONTRACTOR establishes a contract with its subcontractors, which is in conflict with this Section, any additional cost incurred will be borne by the CONTRACTOR.

I. Restoration is not a separate Bid Item but is considered to be an integral part of the WORK under the CONTRACT, and all Bid prices include the cost of restoration necessitated by the WORK related to that Bid Item. Restoration includes existing structure and property, paving, stabilized roads, drainage piping and ditches, catch basins, head walls, yard culverts, driveways, lawns and ground areas, walkways, and irrigation systems, which are altered, removed or damaged during construction. Cleanup is an integral part of restoration.

J. Throughout this Section, all references to “SURVEYOR” shall mean a registered professional land surveyor licensed in the State of Florida.

1.2 GENERAL

A. The following paragraphs describe measurement of and payment for the WORK to be done under the respective itemized Bid Items listed for this CONTRACT.

B. Each Lump Sum and Unit Price stated in the Bid shall constitute full compensation for all labor, equipment and materials necessary and required to complete all WORK specified under that particular Item including cleanup and all costs for doing related WORK as set forth in the CONTRACT DOCUMENTS, SPECIFICATIONS and/or on the CONTRACT DRAWINGS or implied in carrying out their intent.

1.3 COMPUTATION OF QUANTITIES

A. Measurement of quantities expressed as area shall be based upon a horizontal, planimetric projection to the WORK limits as determined by survey Record Drawings prepared by a SURVEYOR. The cost of surveying shall be paid by the CONTRACTOR and incorporated into Bid Items, as appropriate.

B. Measurement of linear Items will be for quantities actually field installed to the specified WORK limits, based upon surveyed stations recorded along the straight or curved centerline of each respective Item. Measurement conducted by survey is to be conducted by the CONTRACTOR'S approved SURVEYOR.

01 20 00-3

C. Measurement of quantities expressed as volume will be based upon a neat plan line projection to the WORK limits (planimetric measure) as determined by survey Record Drawings for each Item, with no additional allowances for shrinkage, swelling, or creep.

Quantities expressed as volume will be in-place volumes to the dimensions indicated on the CONTRACT DRAWINGS. The cost of surveying shall be paid by the CONTRACTOR, and incorporated into Bid Items, as appropriate.

D. Payment will be made to the limits as specified in the CONTRACT DOCUMENTS. If the constructed limits are less than the specified limit, payment will be made to the actual limits of construction as shown on the Record Drawings. Payment for quantities that exceed the specified CONTRACT limits will only be made with the approval of the OWNER and ENGINEER with acceptable supporting documentation from the CONTRACTOR.

Payment for quantities that exceed the CONTRACT quantities can only be obtained through an approved Change Order.

E. No partial payments shall be made for the installation of Items which have not been tested and approved by the ENGINEER.

F. Payment will be made monthly until completion of each Unit Price Item and or Lump Sum cost based on quantity completed by the CONTRACTOR and verified by the ENGINEER.

Final payment will be based on quantity calculated from Record Drawings prepared by a SURVEYOR and confirmed by field measurement by the ENGINEER and OWNER.

G. Payment for Lump Sum Items will be made as described for each individual Lump Sum Bid Item. As described in Part 3 of this section.

H. The CONTRACTOR will be required to transport three to five loads of excavated waste to the scales located at the Central County Solid Waste Disposal Complex to measure and obtain an average unit weight for waste material disposed unless trucks with scales are being used. Vehicles used to transport these materials to the scales by the CONTRACTOR shall be capable of accessing scales with the following specifications:

1. Maximum weight Capacity: 100,000 pounds.

2. Maximum Width: 9 feet 6 inches (outside of tire to outside of tire across the truck width).

3. Maximum Width Above Tires: 10 feet 4 inches (width of guardrail approximately 6 inches from the scale deck).

4. No Height Restrictions.

The CONTRACTOR shall select either off-road or on-road vehicles that can access the scales with dimensions and specifications detailed above, coordinate with the COUNTY regarding the actual trucks proposed for the project, and confirm the suitability of the truck to be able to be weighed on the scales. A load count for bases of billing, without an average unit weight obtained from tonnages recorded through the scales for the pay items requiring tonnage across the scale for payment, will not be accepted.

1.4 VARIATIONS IN ESTIMATED QUANTITIES

01 20 00-4

A. The quantities provided in the CONTRACT DOCUMENTS are approximate only and are given as a basis for the uniform comparison of Bids. The OWNER does not expressly or by implication agree that the actual amount of WORK will correspond therewith.

B. The CONTRACTOR must provide, for Unit Price WORK, a proposed CONTRACT price determined on the basis of estimated quantities required for each Item. The estimated quantities of Items are not guaranteed and are solely for the purpose of comparing Bids.

Each such unit will be deemed to include an amount for overhead, profit, and indirect costs for each separately defined Item.

1.5 CONTRACTOR'S BID FORM

A. The CONTRACTOR'S Bid Form for the Items contained within this Section can be found in the CONTRACT DOCUMENTS.

PART 2 - PRODUCTS

This Section is Not Applicable.

PART 3 - EXECUTION

3.1 MEASUREMENT AND PAYMENT

A. Bid Item No. 001 - Mobilization/Demobilization Lump Sum

1. Measurement - The various Items and WORK required for this Bid Item will not be measured for payment. All Items and WORK shall be included in one (Lump Sum) quantity pro-rated as a percentage of WORK completed.

2. Payment - The Lump Sum price for Mobilization/Demobilization shall constitute full compensation for all preparatory WORK and operations in mobilizing for beginning WORK on the PROJECT including, but not limited to, those operations necessary for the movement of personnel, equipment, supplies, and incidentals to the PROJECT site for the establishment of temporary offices, buildings, safety equipment and first aid supplies, sanitary and other facilities as required by the CONTRACT DOCUMENTS and SPECIFICATIONS and State and local laws and regulations. The costs of bonds and any required insurance and any other pre-construction expense necessary for the start of the WORK, excluding the cost of construction materials. This Bid Item will include Mobilization/Demobilization for all parts or phases of the PROJECT. The maximum amount allowed to be bid is 5 percent of the total Bid.

a. Partial payments for Mobilization/Demobilization will be made in accordance with Table 01025-1 Mobilization/Demobilization Partial Payments Schedule.

b. The final payment for Mobilization/Demobilization will not be made until all the temporary facilities, excess materials, resources, equipment, utilities that were used to perform the WORK, and all remaining construction debris at the completion of the PROJECT, have been removed from the site. Additionally, this shall include the submittal of all final Record Drawings, Record Surveys, PROJECT

01 20 00-5 photos, release of liens, and other incidentals as specified as requirements of the PROJECT close-out.

Table 01025-1 Mobilization/Demobilization Partial Payments Schedule

Condition or Percent of Total Contract Amount Earned

Allowable Percent of the Lump Sum Price for the Item

Submittal/completion of Items listed in Section 015050 Mobilization and Demobilization

10 percent total contract amount earned 40 25 percent total contract amount earned 60 50 percent total contract amount earned 80 100 percent total contract amount earned 100

B. Bid Item No. 002 – Project Survey (Lump Sum)

1. Measurement - Measurement for the WORK specified in this Bid Item shall be based on Table 01025-2 Survey Schedule and all Items related to the WORK shall be included in the CONTRACT Lump Sum Price.

2. Payment - Payment for this Bid Item will be made at the CONTRACT Lump Sum, which price and payment shall be full compensation for Survey in accordance with the CONTRACT DOCUMENTS and SPECIFICATIONS and accepted by the ENGINEER based on Table 01025-2 Survey Schedule. Payment shall be full compensation for the preparatory WORK, establishing construction controls, baseline surveys, location of utilities, stakeout of elevation and positional information required to complete construction, record keeping, and obtaining all survey information required to compile Record Drawings. Record Drawings must be signed and sealed by a

SURVEYOR.

Table 01025-2 Survey Schedule

Survey Item Listed in Section 010500 Site Conditions

Surveys

Allowable Percent of the Lump Sum Price for the Item Preconstruction Survey 25 LFG System Survey 50

Final Survey- Record Drawings and As-Built signed and sealed survey as required

The following defines complete documents for the surveys notated above:

a. Preconstruction Survey - The Preconstruction Survey shall include the existing conditions within the limits of construction of the PROJECT. The survey shall note all above grade structures, piping, and stormwater features which may or will be impacted by the WORK and shall include the areal extent of existing sod that must be removed. The survey will be used as the baseline for determining soil fill quantities and payment of those items for the PROJECT. The survey will be

01 20 00-6 compared to the subgrade design to determine the areas requiring fill and/or grading.

b. LFG System Survey - The LFG system survey shall include survey locations of the landfill gas header and lateral pipes, stub out locations for future expansions, vertical wells, remote wellheads, access risers, isolation valves, sumps, Phase II cleanout locations and connections to existing LFGCCS. When LFG expansion connections to existing LFGCCS is complete (Phase I redrills) and prior to geomembrane reinstallation and/or repair, the CONTRACTOR will certify that the overlay geomembrane soil cover is to design elevation and thickness, and LFGCCS is installed to the required slopes and locations.

c. Final Survey, Record Drawings, and As-Built - Following completion of the LFG Survey, the final survey will include all features of the project installed as part of the construction project and all existing features within the limits of construction.

The final survey will include, but is not limited to, LFGCCS components, roadways, stormwater downchutes, limits of repaired or re-installed geomembrane in Phase I, borrow area for determining final soil fill quantities and extent of excavation, sod and/or seeding limits.

The CONTRACTOR shall, throughout the PROJECT, maintain a redline set of CONSTRUCTION DRAWINGS noting deviations or actual installed conditions. As part of Final Completion, the CONTRACTOR must submit a complete set of Record Drawings based on the red lines maintained throughout the PROJECT, which identify the actual constructed conditions. These Record Drawings shall use the CONTRACT DRAWINGS as a base and show changes by cloud and strikethrough in electronic format (AutoCAD r18 or later version). The Record Drawings shall incorporate the surveys listed above and any other changes made to the PROJECT components into the set in order to create a single Record Drawings set for the PROJECT. Draft Record Drawings, in both hardcopy and AutoCAD format in accordance with the SPECIFICATIONS, must be submitted to the OWNER and ENGINEER for review in order to grant Substantial Completion. Final Completion cannot be granted until the certified Record Drawings (hardcopy and AutoCAD format) signed and sealed by a SURVEYOR is submitted to and approved by the

ENGINEER.

d. Partial Surveys of WORK - It is understood the CONTRACTOR may elect to construct the PROJECT at different time intervals and survey sections separately.

Partial surveys must be submitted to the ENGINEER to determine the section the CONTRACTOR is requesting to continue working in meets the design requirements. The CONTRACTOR may not continue WORK until the partial survey is approved by the ENGINEER. Partial surveys are not required to be signed and sealed at the time of submittal, however, the partial surveys used to compile the complete survey for each of the surveys listed above, must not deviate from the partial survey submitted and the complete survey must be certified for submittal.

Payment for surveys will not be made until the complete, certified survey is submitted and approved. However, partial surveys may be used for payment of WORK items such as soil and piping upon review, agreement, and approval by the OWNER, ENGINEER, and CQAR.

C. Bid Item No. 003 - 36-inch Diameter Bore with 8-inch Diameter SDR 11 Casing (Linear Foot)

01 20 00-7

1. Measurement. Landfill gas wells will be measured on a linear foot basis from existing ground surface to the bottom of the well bore as measured in the field by the ENGINEER.

2. Payment. Payment for this item will be at the contract unit price per linear foot installed. Payment will include all boring, stone, soil, bentonite, geotextile, backfilling, health and safety requirements, HDPE piping (solid and perforated), connections, fittings, and shall constitute full compensation for all material, labor, equipment, and work incidental thereto, necessary to complete this item in accordance with the Contract Documents. (Price shall include the above-grade riser pipe at each well). Additional payment will not be made for the above-grade riser. Disposal of drilling spoils (waste) will be paid under Waste Removal and Relocation.

D. Item No. 004 – Boring Refusal (Linear Foot)

1. Measurement. Wells that must be abandoned due to insufficient depth resulting from boring refusal shall be paid on a linear foot basis as measured in the field by the ENGINEER from existing ground surface to the bottom of the well bore. No boring may be abandoned without approval of the ENGINEER. Proper backfill of abandoned boreholes will include clean soil to surface. This item shall include all material, labor, equipment, backfill transportation, and work incidental thereto, necessary to complete this item in accordance with the Contract Documents. Disposal of drilling spoils (waste) will be paid under Waste Removal and Relocation.

2. Payment. Payment for this item will be at the contract unit price per linear foot of boring, and includes boring, and backfilling with clean soil.

E. Item No. 005 – LFG Wellheads (Each)

1. Measurement. Measurement for this item shall be on a completed and installed unit basis.

2. Payment. Payment for this item shall be at the contract unit price per installed unit, including new QED type orifice plate wellheads with fine tune control valve and all required connections, QED well caps, Solarguard flex hose, steel clamps, fittings, identification markings, monitoring/sample port covers, high liquid level indicator, HDPE reducers, quality control surveying, stone pad and weed barrier, 60-mil HDPE liner flap and other incidentals.

Payment shall constitute full compensation for all material, labor, equipment, and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

F. Item No. 006 – Phase II LFGCCS Connection – North Slope (Each)

1. Measurement. Measurement for this item shall be on a completed and installed unit basis.

2. Payment. Payment for this item shall be at the contract unit price per tie-in to the existing Phase II LFGCCS blind flange near AR-15 and blind flange near CS-11 located on the north slope of Phase II. Payment shall include

01 20 00-8 excavation to expose blind flange near AR-15 and blind flange near CS-11, tie-ins to the existing 18-inch blind flange near AR-15 and blind flange near CS-11, 2-inch air and 4-inch condensate discharge line as shown on the drawings. Payment includes excavation, pipe bedding, backfilling, soil compaction, fittings, piping, connections, quality control surveying, testing, and incidentals. Payment shall constitute full compensation for all material, labor, equipment and work incidental thereto, necessary to complete this item in accordance with the Contract Documents. Disposal of excavated refuse will be paid under Waste Removal and Relocation.

G. Item No. 007 – Phase II LFGCCS Connection – South Slope (Lump Sum)

3. Measurement. Measurement for this item shall be on a completed and installed unit basis.

4. Payment. Payment for this item shall be at the contract unit price per tie-in to the existing Phase II LFGCCS, located on the south slope of Phase II. Payment shall include excavation of existing 18” header near LCR-11S, tie-ins to existing 18-inch header pipe, 2-inch air line and 4-inch condensate discharge line as shown on the drawings. Payment includes excavation, pipe bedding, backfilling, soil compaction, fittings, piping, connections, electrofusion couple, quality control surveying, and incidentals. Payment shall constitute full compensation for all material, labor, equipment and work incidental thereto, necessary to complete this item in accordance with the Contract Documents. Disposal of excavated refuse will be paid under Waste Removal and Relocation.

H. Item No. 008 – 18-inch Header Isolation Valves (Each)

1. Measurement. Measurement for this item shall be on a completed and installed unit basis.

2. Payment. Payment for this item will be at the contract unit price per installed unit, including excavation, backfilling, flanges, valves, valve stem extension controls, fittings, spacers, piping installation and connections, monitoring ports, flexible hoses, and related component, bollards, identification markings, stone pad and weed barrier, 60-mil HDPE liner flap and other incidentals. Payment shall constitute full compensation for all material, labor, equipment, and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

I. Item No. 009 – 4-inch Condensate Discharge Isolation Valves (Each)

1. Measurement. Measurement for this item shall be on a completed and installed unit basis.

2. Payment. Payment for this item will be at the contract unit price per installed unit, including excavation, backfilling, valves, fittings, spacers, piping installation and connections, and related component, bollards, identification markings, stone pad and weed barrier, 60-mil HDPE liner flap and other incidentals. Payment shall constitute full compensation for all material, labor, 01 20 00-9 equipment, and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

J. Item No. 0010 – 2-inch Air Supply Line Isolation Valves (Each)

1. Measurement. Measurement for this item shall be on a completed and installed unit basis.

2. Payment. Payment for this item will be at the contract unit price per installed unit, including excavation, backfilling, valves, fittings, spacers, piping installation and connections, composite pipe supports, and related component, bollards, identification markings, stone pad and weed barrier, 60-mil HDPE liner flap and other incidentals. Payment shall constitute full compensation for all material, labor, equipment, and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

K. Item No. 011 – 18-inch HDPE SDR 17 Landfill Gas Header Pipe (Linear Foot)

1. Measurement. Measurement for this item shall be on an installed linear foot basis per specified pipe size wherein measurement will be made in plan view from the LFG System Survey.

2. Payment. Payment for this item shall be at the contract unit price per horizontal linear foot of installed 18-inch HDPE SDR 17 header piping.

Payment includes excavation, clean soil backfill material, pipe bedding, backfilling, soil compaction, fittings, piping, connections, stub outs for future lateral expansions, repair of existing downshutes, pipe location markings, quality control surveying, testing, and incidentals. Payment shall constitute full compensation for all material, labor, equipment and work incidental thereto, necessary to complete this item in accordance with the Contract Documents. Disposal of excavated refuse will be paid under Waste Removal and Relocation.

L. Item No. 012 – 8-inch HDPE SDR 17 Landfill Gas Header Pipe (Linear Foot)

1. Measurement. Measurement for this item shall be on an installed linear foot basis per specified pipe size wherein measurement will be made in plan view from the LFG System Survey.

2. Payment. Payment for this item shall be at the contract unit price per horizontal linear foot of installed 8-inch HDPE SDR 17 lateral piping. Payment includes excavation, clean soil backfill material, pipe bedding, backfilling, soil compaction, fittings, piping, connections, pipe location markings, quality control surveying, testing, and incidentals. Payment shall constitute full compensation for all material, labor, equipment and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

Disposal of excavated refuse will be paid under Waste Removal and Relocation.

M. Item No. 013 – 6-inch HDPE SDR 17 Landfill Gas Lateral Pipe (Linear Foot)

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1. Measurement. Measurement for this item shall be on an installed linear foot basis per specified pipe wherein measurement will be made in plan view from the LFG System Survey.

2. Payment. Payment for this item shall be at the contract unit price per horizontal linear foot of installed 6-inch HDPE SDR 17 lateral piping. Payment includes excavation, clean soil backfill material, pipe bedding, backfilling, soil compaction, fittings, piping, connections to existing LFGCCS, pipe location markings, quality control surveying, testing, and incidentals. Payment shall constitute full compensation for all material, labor, equipment and work incidental thereto, necessary to complete this item in accordance with the Contract Documents. Disposal of excavated refuse will be paid under Waste Removal and Relocation.

N. Item No. 014 – 4-inch HDPE SDR 17 Landfill Gas Lateral Pipe (Linear Foot)

1. Measurement. Measurement for this item shall be on an installed linear foot basis per specified pipe wherein measurement will be made in plan view from the LFG System Survey.

2. Payment. Payment for this item shall be at the contract unit price per horizontal linear foot of installed 4-inch HDPE SDR 17 lateral piping. Payment includes excavation, clean soil backfill material, pipe bedding, backfilling, soil compaction, fittings, piping, connections to existing LFGCCS, pipe location markings, quality control surveying, testing, and incidentals. Payment shall constitute full compensation for all material, labor, equipment and work incidental thereto, necessary to complete this item in accordance with the Contract Documents. Disposal of excavated refuse will be paid under Waste Removal and Relocation.

O. Item No. 015 – 4-inch HDPE SDR 11 Condensate Discharge Line in Common Trench (Linear Foot)

1. Measurement. Measurement for this item shall be on an installed linear foot basis per specified pipe size wherein measurement will be made in plan view from the LFG System Survey.

2. Payment. Payment for this item shall be at the contract unit price per horizontal linear foot of installed 4-inch HDPE SDR 11 Condensate Discharge Line in a common trench with the air line and header or lateral pipe. Payment includes fittings, piping, connections, stub outs for future condensate discharge expansions, risers for connection at wellheads, access risers, isolation valves, stub ups for connections at sumps, pipe location markings, quality control surveying, testing, and incidentals. Payment shall constitute full compensation for all material, labor, equipment and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

P. Item No. 016 – 2-inch HDPE SDR 9 Air Line in Common Trench (Linear Foot)

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1. Measurement. Measurement for this item shall be on an installed linear foot basis per specified pipe size wherein measurement will be made in plan view from the LFG System Survey.

2. Payment. Payment for this item shall be at the contract unit price per horizontal linear foot of installed 2-inch HDPE SDR 9 Air Line in a common trench with the condensate discharge line and header or lateral pipe.

Payment includes fittings, piping, connections, stub outs for future air line expansions, risers for connections at wellheads, access risers, isolation valves, stub ups for connections at sumps, pipe location markings, quality control surveying, testing, and incidentals. Payment shall constitute full compensation for all material, labor, equipment and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

Q. Item No. 017 –Vacuum Access Riser (Each)

1. Measurement. Measurement for this item shall be on a completed and installed unit basis.

Payment. Payment for this item will be at the contract unit price per installed vacuum access risers for the 18-inch header pipe, including completed access riser, fittings, piping, blind flange with neoprene gaskets, connections to header line, identification markings, monitoring/access ports, tubing for LFG sampling, testing, stone pad and weed barrier, 60-mil HDPE liner flap and other incidentals. Payment shall constitute full compensation for all material, labor, equipment, and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

R. Item No. 018 – 24-inch HDPE SDR 17 Condensate Sump with Pump (Each)

1. Measurement. Measurement for this item shall be on a completed and installed unit basis.

2. Payment. Payment for this item will be at the contract unit price per installed condensate sump with pneumatic pump (along the 18-inch HDPE header), including excavation, stone base support, backfilling, clean soil backfill material, fittings, sump and piping installation and connections, monitoring ports, QED bottom loading AP-4 pneumatic pump, placement and testing of the pump, pump data modules, pump discharge hoses, airlines from pump data module to pump discharge stub, data module support system, check and ball valves, connectors for air and condensate discharge piping, sump flanged lid with quick release cap, testing, connection to header pipe, stone pad and weed barrier, 60-mil HDPE liner flap and any other incidentals.

Payment shall constitute full compensation for all material, labor, equipment, and work incidental thereto, necessary to complete this item in accordance with the Contract Documents. Disposal of excavated refuse will be paid under Waste Removal and Relocation.

S. Item No. 019 – 18-inch Header Blind Flange (Each)

1. Measurement. Measurement for this item shall be on a completed and installed unit basis. This item is only for the header blind flanges.

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2. Payment for this item will be at the contract unit price per supplied unit.

Payment shall constitute full compensation for all material, labor, equipment, flange adapter with ductile iron backup ring, stainless steel hardware, bollard identification markings, stone pad and weed barrier, 60-mil HDPE liner flap and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

T. Item No. 020 – 4-inch Dual Leachate Cleanout (Each)

1. Measurement. Measurement for this item shall be on a completed and installed unit basis.

2. Payment for this item will be at the contract unit price per installed unit, including excavation, backfilling, valves, fittings, spacers, gauges, piping installation and connections, pipe supports and related component, flanges, pressure testing, stone pad and weed barrier, 60-mil HDPE liner flap and other incidentals. Payment shall constitute full compensation for all material, labor, equipment, and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

U. Item No. 021 – Sodding – (Square Yard)

1. Measurement. Measurement for this item shall be on a square yard basis wherein measurement will be made in plan view from the Final Survey. The area has been estimated to include a 50-foot wide section following the alignment of the LFG header and lateral pipes along the side slopes in Phase II and disturbed areas of Phase I. Areas disturbed by the CONTRACTOR that are not required as part of the performance of the work, as determined by the Owner and Engineer, will not be included in the quantity of payment.

2. Payment. Payment for this item shall be on a square yard basis for areas which have been disturbed by the CONTRACTOR estimating a 50-foot wide section following the alignment of the LFG header and lateral pipes along the side slopes as shown on the Contract Drawings and in accordance with the Specifications. The pay item includes addition of topsoil, conditioning the topsoil with fertilizer and/or lime application, soil testing, fine grading, supplying and installing sod, anchoring/netting of sod, watering, mowing, replanting, repair of erosion, maintaining areas sodded through final acceptance of the WORK, and any other work necessary to produce a uniform stand of grass. No payment will be made for sod placed outside of the limits of construction shown on the Contract Drawings without prior approval of the ENGINEER. Payment of sod shall not relieve the CONTRACTOR of the need to maintain sod throughout warranty period.

V. Item No. 022 – 40-mil LLDPE Textured Geomembrane and Geocomposite – Repair Work (Square Feet)

1. Measurement. Measurement for this item shall be on a square feet basis where in measurement will be made in plan view from the Final Survey.

2. Payment. Payment for this item will be on a square feet basis for areas where removal of the existing 40-mil LLDPE textured geomembrane and

01 20 00-13 geocomposite (part of the Phase I closure) is required for the installation of the LFG system piping in Phase I. Geomembrane and geocomposite to be installed in accordance with the Phase I Closure Certification Specifications and CQA Plan. This pay item shall include furnishing specified materials and documentation associated with manufacture of the materials, delivery, stockpiling, inventory, geomembrane/geocomposite removal, repair, and required field testing, cleaning, patching, tie-ins with existing Work, anchor trenches, and seaming of geomembrane components. Payment shall constitute full compensation for all material, labor, equipment, and work incidental thereto, necessary to complete this item in accordance with the Contract Documents. Disposal of excavated refuse will be paid under Waste Removal and Relocation. No payment will be made for LLDPE geomembrane and geocomposite placed outside of the construction baseline shown on the Contract Drawings or where testing has indicated that the installed material does not meet the specified requirements without prior approval of the

ENGINEER.

W. Item No. 023 – Waste Removal and Relocation (Ton)

1. Measurement. Measurement for this item shall be on a per ton hauled basis wherein measurement will be made by tonnage disposed as measured at the scales or approved alternative refuse tracking method.

2. Payment. Payment for this item will be on a per ton hauled basis. This pay item shall include loading waste excavated from the project, hauling to the scales at the entrance of the facility, hauling from the scales to the active face, and unloading/dumping of the material at the active face. Payment shall constitute full compensation for necessary materials, equipment, transportation, labor, and appurtenances necessary to remove excavated waste and disposing of the waste at the active face of the landfill. Waste generated by the CONTRACTOR during execution of the contract shall not be included within this bid item. Waste excavation will be required during drilling of gas wells, trenching for LFG header/lateral piping excavation of trenches for geomembrane, connections to existing LFG system, and installation of sumps. Engineer or CQA Consultant shall determine if soils excavated may be reused within the project or must be removed under this bid item due to contamination by waste. The CONTRACTOR will be required to weigh the waste at the scales near the entrance to the landfill using vehicles acceptable to use on paved roads and on the facility’s truck scales. Payment of processing fees at the scale house will be paid under Waste Disposal Tipping Fee Allowance. The CONTRACTOR also has the option to determine the tons hauled by determining a weighing average at the beginning of construction as specified in Section 1.3(H) and utilizing that average to determine tons hauled. The Cubic Yard/Load will be multiplied by the Ton/Cubic Yard factor obtained from average weight and truck dimension.

Trucks with scales may also be used.

X. Item No. 024 – Waste Disposal Tipping Fee Allowance (Lump Sum)

1. Measurement. Measurement for this item shall be on a completed lump sum basis based on percentage of work completed.

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2. Payment. The Allowance for this payment is listed as a lump sum amount wherein payment will be for waste removed (project generated) and hauled to the working face as determined in Bid Item 023, Waste Removal and Relocation. CONTRACTOR will be required to set up a prepaid account at the landfill for payment purposes and pay the current landfill waste processing fee of $14.40 per ton. CONTRACTOR can submit for reimbursement for payments made based on tons handled and hauled to the working face.

Disposal of CONTRACTOR generated waste is not to be paid under this line item. The CONTRACTOR is responsible for the proper disposal and associated processing fees for any CONTRACTOR generated waste at no additional cost to COUNTY.

Y. Item No. 025 – Borrow Soil Excavation and Placement (Cubic Yard)

1. Measurement. Measurement for this item shall be on a cubic yard basis wherein measurement will be made by comparing the Preconstruction and Final Surveys of the borrow area to determine the quantity of soil removed.

Soil may be excavated from either borrow (Item No. 25) and/or stormwater ditch cleanings (Item 25a) soil stockpile areas depending on quantity of soil available.

2. Payment. Payment for this item will be on a cubic yard basis. This pay item shall include all necessary materials, equipment, transportation, labor, and appurtenances necessary to excavate soil from the permitted borrow area located adjacent to the site as shown on the Contract Drawings, and loading, hauling, unloading/dumping, placing in the Work, spreading, compaction, and finish grading to achieve uniform grades 3:1 (horizontal:vertical) or less in accordance with the preconstruction survey. CONTRACTOR shall only remove soil from locations within the borrow area as shown on the Contract Drawings. CONTRACTOR shall at all times be familiar with the conditions of the mining permit and shall abide by all requirements of the permit including excavating the borrow area only to permitted grades.