Latest US Soil Washing Contracts & Bids

Sealed bids for the Washington County 2025 Paving project are due June 30, 2025, at 11:00 AM. Bids must be submitted as one original and three copies, unbound, on uniform proposal blanks. Specifications and bid documents are available at the Washington County Purchasing Office or by written request. Bid offers must be accompanied by a bid bond or other irrevocable letter of credit equal to 10% of the total bid amount. Questions regarding specifications must be emailed at least 10 days prior to the bid opening. The project is anticipated to be completed 150 calendar days after the notice to proceed, tentatively July 15, 2025. Bidders must satisfy themselves of the work by examining the site and reviewing the drawings and specifications. The county reserves the right to reject any or all bids. Prevailing wages apply. Additional information regarding the contract documents, including general conditions, technical specifications, and bid documents, is available.

The US Geological Survey Earthquake Science Center, Seattle Field Office, is requesting services for radiocarbon analyses of samples. The lab must be able to perform standard and small sample analyses (less than 100g of pure carbon) on samples collected from Washington and Oregon. A written report of results, including methodology, pretreatments, radiocarbon measurement, and age calculation, is required. Delivery dates will vary depending on sample submission and treatment time. The period of performance is from August 1, 2025 to July 31, 2027. The offer will be evaluated based on price and other factors, including trade-off, capability, recent and relevant experience, past performance, and turnaround time. Offerors must submit at least two references with contact information and project descriptions.

The US Geological Survey Earthquake Science Center, Seattle Field Office, is requesting services for radiocarbon analyses of samples. The lab must be able to perform standard and small sample analyses (less than 100g of pure carbon) on samples collected from Washington and Oregon. A written report of results, including methodology, pretreatments, radiocarbon measurement, and age calculation, is required. Delivery dates will vary depending on sample submission and treatment time. The period of performance is from August 1, 2025 to July 31, 2027. The offer will be evaluated based on price and other factors, including trade-off, capability, recent and relevant experience, past performance, and turnaround time. Offerors must submit at least two references with contact information and project descriptions.

The tender requires Cone penetration tests in Skagit River Delta, Skagit County, Washington. Detailed site information will be disclosed upon award. The contractor must provide SCPT data digitally in a non-proprietary format (e. g. , . csv or . txt) along with a written summary report. All SCPT holes must be sealed after testing. Electronic invoicing and payment through the US Department of the Treasury's Invoice Processing Platform (IPP) system is required. The contractor must comply with technical clarifications from the technical liaison, and must ensure all delivered software is free of malicious code. All invoices must be submitted within 90 calendar days after the period of performance expires, unless an extension is requested. The contract is a non-personal services contract, and contractors and subcontractors must not wear US Geological Survey clothing or items bearing the agency's logo. The contractor must comply with US Department of Labor wage determination number 20155531. The government will award the contract to the responsible offeror whose offer is most advantageous to the government, considering price and other factors. The evaluation will consider technical capability, price, and past performance.