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EPA updates Jurupa Valley council on Stringfellow Superfund cleanup; 5‑year review due Sept. 30, 2026
Summary
The U.S. EPA told the Jurupa Valley City Council it continues cleanup and monitoring at the Stringfellow Superfund site, highlighted interim remedies and said a five‑year review report on protectiveness will be posted by Sept. 30, 2026. Residents urged protections for remediation infrastructure around Pyrite Street.
The Jurupa Valley City Council on Feb. 19 heard an update from the U.S. Environmental Protection Agency on cleanup work at the Stringfellow Superfund site and plans for continued monitoring and community engagement.
“Stringfellow is the oldest cleanup within the Pacific Southwest, and the second oldest in the U.S.,” EPA remedial project manager Romy Duarte told the council, summarizing the site’s history of contamination and past interim records of decision used to address urgent threats. Duarte said the agency is currently evaluating perchlorate in Zone 4 and distinguishing site‑related sources from background levels.
Duarte listed recent and ongoing work — soil vapor sampling,…
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