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HDPE Piping and Infrastructure

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State & Local

Contract Overview

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This subcontract for HDPE Piping and Infrastructure involves the installation of leachate pressure piping and related infrastructure for prime contractors on Ada County landfill projects in Idaho. The scope of work includes trenching, the installation of HDPE piping, valves, fittings, and vaults, as well as executing critical tie-ins to the Third Leachate Pond. To ensure quality and compliance, the contractor is responsible for performing 1/2-inch trench backfill testing to deliver a fully operational leachate pressure piping system. The project is categorized under NAICS code 237110 and was posted on November 12, 2026. Interested parties must submit their responses by the deadline of December 18, 2026. Further details regarding this opportunity can be accessed through the Ada County Bonfire hub.

General Info

Subcontract for HDPE piping and leachate infrastructure installation at Ada County landfill, Idaho.

Documents

This scope was carved out of RFP 27006.

The full solicitation package (3 documents), including the RFP, is on the prime solicitation, not on this scope.

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Ada County Landfill Third Leachate Pond 2027

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Organization & Contact Information

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AgencyIdaho → Ada County
ContactsNo contacts available
OfficeN/A
Organization / AgencyIdaho → Ada County
Office AddressN/A
ContactsNo contact information available

Full Description

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Installs leachate pressure piping and associated infrastructure for prime contractors on Ada County landfill projects. Performs trenching, installation of HDPE piping, valves, fittings, and vaults, and executes tie-ins to the Third Leachate Pond. Performs 1/2-inch trench backfill testing. Delivers an operational leachate pressure piping system.

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Same NAICS industry code

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Same awarding agency

NAICS: 237990
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SLED
Ada County Landfill Third Leachate Pond 2027
Solicitation # RFP 27006
Ada County is soliciting proposals under RFP 27006 for a fixed-price construction contract to build a third operable lined leachate pond at the Ada County Landfill in Idaho. The scope of work encompasses comprehensive earthwork, including general excavation, subgrade preparation, and grading, followed by the installation of a Geosynthetic Clay Liner (GCL) and HDPE geomembrane liner system. The project also requires the placement of a liner protection layer, gravel surfacing, and the installation of HDPE piping, valves, and fittings. Key deliverables include topo and as-built surveys, as well as monthly electronic progress schedules. Substantial completion of the project is required by December 17, 2027. Proposals must be submitted electronically via the Bonfire portal by December 18, 2026. Evaluation is based on a 100-point system weighting the project approach and anticipated costs at 30% each, qualifications and experience at 20%, and compliance and safety records at 10% each. The contract includes a 200,000 dollar owner's contingency allowance and requires bid, performance, and payment bonds. Payment terms are set at thirty days following engineer approval, with contractors able to request payment for 95% of the allocated contract price on the schedule of values. All work must adhere to strict quality standards, including ACI 301 for concrete testing, and aerial drone Lidar surveys are specifically prohibited for compliance verification.
Other Heavy and Civil Engineering Construction

POSTED

3 days ago

DEADLINE

in about 1 month
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