{"schemaVersion":2,"id":"us-MA4082000","communeId":"MA4082000","name":"Duxbury Water Department","slug":"duxbury-water-department-ma4082000","country":"us","region":"Massachusetts","supplier":"DUXBURY WATER DEPARTMENT","networks":[{"code":"10000/1768","name":"Entry Point to Dist. System (Depot St. GP Well)"},{"code":"10003/1771","name":"Entry Point to Dist. System (Lake Shore Dr. Well)"},{"code":"10005/1773","name":"Entry Point to Dist. System (Millbrook Pond Well)"},{"code":"10006/1774","name":"Entry Point to Dist. System (Partridge Road GP Well)"},{"code":"10070/1775","name":"Entry Point to Dist. System (Tremont Wells #1 & #2)"},{"code":"10071/1772","name":"Entry Point to Dist. System (Mayflower Wells #1 & #2)"},{"code":"10072/1769","name":"Entry Point to Dist. System (Evergreen Wells #1 & #2)"},{"code":"10073/1773","name":"Entry Point to Dist. System (Damon Wells #1 & #2 TP)"}],"latestSampleDate":"2025-05-06T00:00:00Z","conformity":{"conclusion":null,"bacteriological":"unknown","chemical":"unknown"},"source":{"name":"U.S. Environmental Protection Agency, Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) occurrence data, final dataset (August 2026)","url":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","license":"Public domain (U.S. federal government work, 17 U.S.C. § 105)","kind":"open_data_file","verified":true,"retrievedAt":"2026-09-19T19:22:35.464Z","note":"UCMR 5 results do not indicate compliance or noncompliance with the PFAS drinking water standards. Samples are taken at the entry point to the distribution system, not at the tap; the system may have changed sources or installed treatment since. Treatment reported to EPA for PFAS: no PFAS treatment (NMT). 8 entry points sampled, 19 sampling events between 2024-07-17 and 2025-05-06. The page's PFAS values come from the newest sample at Entry Point to Dist. System (Partridge Road GP Well) (10006/1774), the entry point with the highest PFOA + PFOS + PFNA + PFHxS sum; the other entry points' maxima are listed as separate rows. Non-detects are shown as \"<\" followed by EPA's minimum reporting level (3 to 20 ng/L); PFAS-4 sums quantified compounds only, so it is a lower bound when a compound was not detected. Registry (name, population, counties, ZIPs) from EPA SDWIS/ECHO; service-area centroid from EPA ORD."},"pfas":{"status":"measured","sum20":null,"pfas4":{"value":0.0676,"valueText":"0.0676","unit":"µg/L","limit":0.004,"limitUnit":"µg/L","status":"exceeded","sampleDate":"2025-01-14T00:00:00Z","sampleId":"M4F0893-07"},"pfas4DetectedCount":3,"lowerBound":true,"sampledAt":{"commune":"MA4082000","name":"Entry Point to Dist. 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