REVISED_6.20.24_Section_01_20_00_Measurement_&_Payment.pdf

Sarasota County 2024 Phases I and II LFGCCS Expansion

MEASUREMENT AND PAYMENT

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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:

REVISED 6.20.24

MEASUREMENT AND PAYMENT

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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.

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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.

1.4 VARIATIONS IN ESTIMATED QUANTITIES

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

MEASUREMENT AND PAYMENT

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A. Bid Item No. 29 - 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

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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. 001 – 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

MEASUREMENT AND PAYMENT

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.

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C. Bid Item No. 2 - 36-inch Diameter Bore with 8-inch Diameter SDR 11 Casing (Linear Foot)

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), loading, hauling, and unloading of waste and disposing of at the active face, 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.

D. Item No. 3 – 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, loading, hauling, and unloading of waste and disposing of at the active face, backfill transportation, and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

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. 4 – LFG Wellheads (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 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. 5 – Phase II LFGCCS Connection – North Slope (Each)

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

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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 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, loading, hauling, and unloading of excavated waste and disposing of at the active face, 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.

G. Item No. 6 – Phase II LFGCCS Connection – South Slope (Lump Sum)

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, 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, loading, hauling, and unloading of excavated waste and disposing of at the active face, 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.

H. Item No. 7 – 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. 8 – 4-inch Dewatering 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

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01 20 00-9 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.

J. Item No. 9 – 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. 10 – 18-inch HDPE SDR 17 LFG 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, loading, hauling, and unloading of excavated waste and disposing of at the active face, 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.

L. Item No. 11 – 8-inch HDPE SDR 17 LFG 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, loading, hauling, and unloading of excavated waste from and disposing of at the active face, 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.

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M. Item No. 12 – 6-inch HDPE SDR 17 LFG 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 6-inch HDPE SDR 17 lateral piping. Payment includes excavation, loading, hauling, and unloading of excavated waste and disposing of at the active face, 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.

N. Item No. 13 – 4-inch HDPE SDR 17 LFG 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, loading, hauling, and unloading of excavated waste and disposing of at the active face, 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.

O. Item No. 14 – 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.

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P. Item No. 15 – 2-inch HDPE SDR 9 Air 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 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. 16 – 18-inch HDPE SDR 17 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. 17 – 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, loading, hauling, and unloading of excavated waste and disposing of at the active face, 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.

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S. Item No. 18 – 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.

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. 19 – 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. 20 – 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.

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V. Item No. 21 – 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 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. 22 – 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. 23) and/or stormwater ditch cleanings (Item No. 23a) 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. CONTRACTOR shall be responsible for clearing and dewatering borrow area and disposing of drainage in an approved manner as well as maintaining haul roads from the borrow area to the Site while working in the borrow area, and temporary erosion and sediment control. This bid item shall also include all work required to restore the borrow area to conditions equal to, or better than, what existed prior to soil removal, as determined by the Owner.

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X. Item No. 023 – Stormwater (SW) Ditch Cleanings Soil Stockpile 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 SW ditch cleanings soil stockpile area to determine the quantity of soil removed. Soil may be excavated from either borrow (Item No.

23) and/or SW ditch cleanings soil (Item No. 23a) 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 SW ditch cleanings soil stockpile area located on East of the Phase III Landfill 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 the stockpile located to the East of the Phase III landfill 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. This bid item shall also include all work required to restore the SW ditch cleanings soil stockpile area to conditions equal to, or better than, what existed prior to soil removal, as determined by the Owner.

Y. Item No. 024 – LFG Abandonment (Each)

1. Measurement. Measurement for this item shall be on a unit basis per each landfill gas well abandonment.

2. Payment. Payment for this item will be at the contract unit price per each completed landfill gas well abandonment. Payment will include all excavation to required depths, disconnecting wellheads, cutting LFG well pipe at required depth and welding caps at end of pipe, installing required bentonite plugs, loading, hauling, and unloading of excavated waste and disposing of at the active face, hauling and placing of clean backfill on top of bentonite plugs; health and safety requirements; 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. Note:

Contractor to reuse/return to County all wellheads removed from abandoned wells. Phase I abandonments to be capped 3 feet above grade. Phase II abandonments to be capped 2 feet below grade.

Z. Item No. 025 – 4-inch Condensate Discharge Stub-up Valve Fittings (Each)

1. Measurement. Measurement for this item shall be on a completed and installed unit basis. This item is for pump discharge manifold at sub-ups at new gas extraction wells and condensate sumps.

2. Payment. Payment for this item will be at the contract unit price per supplied unit, including valves, fittings, spacers, installation and connections, testing and other incidentals. Contractor to install pump discharge manifolds at all

MEASUREMENT AND PAYMENT

01 20 00-15 new gas extraction wells, access risers and condensate sumps. Wells that are proposed to be abandoned and replaced by a new well, the pump discharge manifolds at the proposed abandoned well should be reused at the new well.

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.

AA. Item No. 026 – 2-inch Air Supply Stub-up Valve Fittings (Each)

1. Measurement. Measurement for this item shall be on a completed and installed basis unit basis. This item is only for the check and ball valve at sub-ups at new gas extraction wells and condensate sumps.

2. Payment. Payment for this item will be at the contract unit price per supplied unit, including valves, fittings, spacers, installation and connections, testing and other incidentals. Contractor to install stub-ups, valves and valve fittings at all new gas extraction wells, access risers and condensate sumps. Wells that are proposed to be abandoned and replaced by a new well, the valve fittings on the air supply line riser at the proposed abandoned well should be reused at the new well. 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.

END OF SECTION