Report: Inspection of the Sunnyvale, California, Water Treatment Project Funded by the Infrastructure Investment and Jobs Act to Verify Compliance with Domestic Preference Requirements
October 7, 2026 | Report No. 26-E-0001
Why We Did This Report
We conducted this inspection to determine the extent to which an Infrastructure Investment and Jobs Act-funded water infrastructure project complies with federal domestic preference requirements. In fiscal year 2022, the EPA awarded the California State Water Resources Control Board approximately $127.3 million. The Sunnyvale Project received the largest allocation of all Clean Water State Revolving Fund projects funded under IIJA in that fiscal year.
Summary of Findings
The Sunnyvale Project demonstrated compliance with federal domestic preference requirements. Project staff could improve compliance documentation by requiring that certification letters or supporting documentation contain more specific product descriptions. Project staff could also improve documentation by having manufacturers, rather than suppliers, provide certification letters or by ensuring that the location of specific manufacturing processes is included in all certification letters.
Report Materials
OIG Independence of EPA
The EPA's Office of Inspector General is a part of the EPA, although Congress provides our funding separate from the agency, to ensure our independence. We were created pursuant to the Inspector General Act of 1978, as amended.
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