Soils and Aggregate Base Course Testing

The contract requires comprehensive field and laboratory testing of soils and aggregate base materials, including standard procedures such as Proctor compaction, sieve analysis, plasticity index determination, and gradation testing. All testing must be completed with a strict 24-hour reporting turnaround to ensure timely project progress and compliance with engineering specifications. The work is classified as a subcontract under NAICS Code 541350, indicating it falls within the engineering services sector, and is being managed by the City Engineering - Capital Improvements division in Arizona. The response deadline is August 10, 2026, and interested parties must submit their proposals by that time to be considered. The place of performance and specific location details are not specified in the provided data, but the work is expected to occur in support of capital improvement projects under the jurisdiction of the Arizona agency.