Hydrogeological Testing and Pumping Analysis

The City of Issaquah is seeking a subcontractor to perform hydrogeological testing on Wells 4 and 5, including step-drawdown and sustained pumping tests to evaluate well capacity, aquifer response, and sustainable yield. The work requires detailed analysis of drawdown and recovery data to determine the hydraulic properties of both shallow and deep aquifers, providing critical information for water resource management and long-term well performance. All testing must be conducted with precision to ensure accurate characterization of aquifer behavior under varying pumping conditions. The contract, classified under NAICS code 541620 for scientific consulting services, is posted with a response deadline of August 22, 2026. The work is expected to be performed at the location of the wells within the City of Issaquah, Washington, although specific site coordinates are not provided. This subcontract opportunity is open to qualified providers capable of delivering professional hydrogeological field testing and data interpretation services in compliance with industry standards and regulatory expectations for groundwater assessment.