This is a firm fixed-price purchase order awarded by the U.S. Geological Survey (USGS), an agency within the Department of the Interior, to Leticia Diaz, a minority-owned, women-owned, and economically disadvantaged small business. The contract, valued at $36,800.00, is for sediment sample preparation services in support of the USGS Pacific Coastal and Marine Science Center's field studies along the Pacific coast. This contract is set aside for total small businesses. Leticia Diaz has previously provided sediment sample preparation, geochemistry lab services, and geochemistry field sampling and travel expenses to the USGS under past prime federal contract awards. The current contract has an ultimate completion date of July 31, 2024.