The Department of the Interior, through the National Park Service, is seeking bids for water and wastewater laboratory analysis services at Grand Canyon National Park. The procurement requires qualified vendors to perform sample analysis, record and report data related to drinking water, wastewater, reclaimed water, chlorinated water discharge, and biosolids, ensuring compliance with specified licenses and certifications. This contract, which is a total small business set-aside, is crucial for maintaining environmental quality and compliance within the park's water systems. Interested parties must submit their quotations by May 22, 2025, and direct any questions to Lindsay McLaughlin at lindsay_mclaughlin@nps.gov by May 8, 2025.