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This Government Contract opportunity from Washington was posted on September 17, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

Earthwork & Trenching

Closed
State & Local

Contract Overview

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This subcontract for Earthwork and Trenching supports Sammamish Plateau Water projects by providing essential excavation, shoring, and backfilling services for prime contractors. The scope of work includes trench excavation for piping, utility structure backfill, finish grading, and dewatering, with all temporary shoring and bracing performed in accordance with Chapter 296-24 WAC safety standards to ensure sites are ready for utility installation. The opportunity was posted on September 17, 2026, with a response deadline of October 15, 2026. Classified under NAICS code 237990, the contract is managed by the agency in Washington and focuses on delivering high-quality excavated trenches and graded sites.

General Info

Subcontract for Earthwork and Trenching services for Sammamish Plateau Water projects in Washington.

Documents

This scope was carved out of C18009.30000.0875.3020.

The full solicitation package (2 documents), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

Freegard Lift Station Emergency Storage

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Timeline

PhaseClosed
Posted

subcontract

Response Deadline

Deadline has passed

Submission Closed

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Organization & Contact Information

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AgencyWashington → Sammamish Plateau Water
ContactsNo contacts available
OfficeN/A
Office AddressN/A
ContactsNo contact information available

Full Description

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Performs excavation, shoring, and backfilling for prime contractors on Sammamish Plateau Water projects. Executes trench excavation for piping, utility structure backfill, finish grading, and dewatering. Utilizes temporary shoring and bracing per Chapter 296-24 WAC safety standards. Delivers excavated trenches and backfilled/graded sites ready for utility installation.

More opportunities from Washington → Sammamish Plateau Water

Same awarding agency

NAICS: 541330
New
SLED
RFQ - South Plateau Parallel Conveyance Interceptor - Consultant Design Services
Solicitation # c18009
The Sammamish Plateau Water and Sewer District is soliciting Statements of Qualifications from consultants to provide design services for the South Plateau Parallel Conveyance Interceptor project in Washington. The project involves the installation of approximately 5,000 linear feet of 20-inch low pressure sewer main along SE 43rd Way, extending from the Highland Creek Parallel sewer to the District's Control Structure. This infrastructure is designed to provide redundancy and reduce high velocity flows by splitting the flow path as sanitary sewer volumes increase. The selected consultant will be responsible for developing Plans, Specifications, and Estimates (PS&E) through 30, 60, and 90 percent stages, performing topographic surveys, preparing a geotechnical report, and securing necessary permits from federal, state, and City of Issaquah agencies. The procurement process is based on qualifications rather than price, with the best-qualified consultant selected via an evaluation of their SOQ and potential oral presentations. Submissions are limited to 12 pages, excluding resumes, and must be delivered by November 24, 2026. The contract will utilize the District's Standard Agreement for Consulting Services, which includes detailed monthly billing requirements and a payment term of 45 days. The scope may optionally expand to include inspection and construction support services. Awardees must comply with Title VI of the Civil Rights Act and the Americans with Disabilities Act, and they are required to maintain specific insurance coverages naming the District as an additional insured.
Engineering Services

POSTED

5 days ago

DEADLINE

in 21 days
View Details
NAICS: 424690
SLED
2027 Chemical Supply Contract for Water and Sewer Treatment
Solicitation # RFQ-2026-0001
The Sammamish Plateau Water and Sewer District is soliciting quotes for the sale, delivery, and supply of chemicals for the 2027 calendar year to support potable water treatment and odor control at three sewer lift stations. Under solicitation RFQ-2026-0001, the District will award Material Purchase Agreements to the lowest responsive and responsible bidders for each specific chemical requested. The response deadline is November 13, 2026, with all submissions required electronically via the Beacon Bid portal. Suppliers must adhere to strict quality and packaging standards, including compliance with ANSI/NSF Standard 60 and specific AWWA standards for sodium chloride, sodium fluoride, sodium hydroxide, and ferric chloride. Bagged materials must be delivered on pallet-jack compatible pallets, while other materials may be delivered via tanker truck. Deliveries are scheduled between 8 AM and 2 PM at designated facilities in Sammamish and Issaquah, Washington. The purchase price must include all delivery costs, including fuel and energy surcharges, with a sales tax rate of 10.3% applied at the time of invoice. To qualify, applicants must submit a mandatory Qualification Statement detailing their business experience, UBI number, and past performance. Specific requirements for Liquid Calcium Nitrate include a list of five references with at least three years of experience and detailed technical documentation on hydrogen sulfide control. Additionally, vendors must provide an Affidavit of Compliance and a spill/leak response plan for certain materials. The successful contractor is required to maintain insurance against claims for personal injury or property damage for the duration of the agreement.
Other Chemical and Allied Products Merchant Wholesalers

POSTED

18 days ago

DEADLINE

in 10 days
View Details

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