{"schemaVersion":2,"id":"us-MA3071000","communeId":"MA3071000","name":"Danvers Water Dept.","slug":"danvers-water-dept-ma3071000","country":"us","region":"Massachusetts","supplier":"DANVERS WATER DEPT.","networks":[{"code":"00014/16832","name":"Middleton Pond WTP Finish Water (Middleton Pond WTP)"},{"code":"90001/10208","name":"Well #2 Finish Water (Well #2)"}],"latestSampleDate":"2024-05-16T00:00:00Z","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). 2 entry points sampled, 8 sampling events between 2023-07-12 and 2024-05-16. The page's PFAS values come from the newest sample at Well #2 Finish Water (Well #2) (90001/10208), 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":0.0052,"valueText":"0.0052","unit":"µg/L","limit":0.004,"limitUnit":"µg/L","status":"exceeded","sampleDate":"2023-12-18T00:00:00Z","sampleId":"M3J0733-03"},"pfas4DetectedCount":1,"lowerBound":true,"sampledAt":{"commune":"MA3071000","name":"Well #2 Finish Water (Well #2)","network":"90001/10208"},"qualifiers":[{"name":"PFOA","valueText":"<0.004","unit":"µg/L"},{"name":"PFHxS","valueText":"<0.003","unit":"µg/L"},{"name":"PFNA","valueText":"<0.004","unit":"µg/L"},{"name":"HFPO-DA","valueText":"<0.005","unit":"µg/L"},{"name":"PFBS","valueText":"<0.003","unit":"µg/L"},{"name":"11Cl-PF3OUdS","valueText":"<0.005","unit":"µg/L"},{"name":"4:2 FTS","valueText":"<0.003","unit":"µg/L"},{"name":"6:2 FTS","valueText":"<0.005","unit":"µg/L"},{"name":"8:2 FTS","valueText":"<0.005","unit":"µg/L"},{"name":"9Cl-PF3ONS","valueText":"<0.002","unit":"µg/L"},{"name":"ADONA","valueText":"<0.003","unit":"µg/L"},{"name":"NEtFOSAA","valueText":"<0.005","unit":"µg/L"},{"name":"NFDHA","valueText":"<0.02","unit":"µg/L"},{"name":"NMeFOSAA","valueText":"<0.006","unit":"µg/L"},{"name":"PFBA","valueText":"<0.005","unit":"µg/L"},{"name":"PFDA","valueText":"<0.003","unit":"µg/L"},{"name":"PFDoA","valueText":"<0.003","unit":"µg/L"},{"name":"PFEESA","valueText":"<0.003","unit":"µg/L"},{"name":"PFHpA","valueText":"<0.003","unit":"µg/L"},{"name":"PFHpS","valueText":"<0.003","unit":"µg/L"},{"name":"PFHxA","valueText":"<0.003","unit":"µg/L"},{"name":"PFMBA","valueText":"<0.003","unit":"µg/L"},{"name":"PFMPA","valueText":"<0.004","unit":"µg/L"},{"name":"PFPeA","valueText":"<0.003","unit":"µg/L"},{"name":"PFPeS","valueText":"<0.004","unit":"µg/L"},{"name":"PFTA","valueText":"<0.008","unit":"µg/L"},{"name":"PFTrDA","valueText":"<0.007","unit":"µg/L"},{"name":"PFUnA","valueText":"<0.002","unit":"µg/L"}],"comparison":{"proposed":{"value":0.0005,"period":"annual_mean","official":false,"state":"over"},"sweden":{"value":0.004,"jurisdiction":"se"},"franceSum20":{"value":0.1,"jurisdiction":"fr"}}},"samples":[{"id":"M4E1448-01","date":"2024-05-16","commune":"MA3071000","communeName":"DANVERS WATER DEPT.","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["00014/16832"],"sum20":null,"pfas4":{"value":null,"valueText":"<0.015","unit":"µg/L","nonDetect":true,"lowerBound":true,"qualifiers":[{"name":"PFOA","valueText":"<0.004","unit":"µg/L"},{"name":"PFOS","valueText":"<0.004","unit":"µg/L"},{"name":"PFHxS","valueText":"<0.003","unit":"µg/L"},{"name":"PFNA","valueText":"<0.004","unit":"µg/L"}]},"revision":"d61ac0def66997075551d04dbfb2fa48881d6078b99abddda4824b15a1621916"},{"id":"M3L0638-01","date":"2024-01-10","commune":"MA3071000","communeName":"DANVERS WATER 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DEPT.","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["90001/10208"],"sum20":null,"pfas4":{"value":0.0052,"valueText":"0.0052","unit":"µg/L","nonDetect":false,"lowerBound":true,"qualifiers":[{"name":"PFOA","valueText":"<0.004","unit":"µg/L"},{"name":"PFHxS","valueText":"<0.003","unit":"µg/L"},{"name":"PFNA","valueText":"<0.004","unit":"µg/L"}]},"revision":"53d69faf8e9562de693e74b116018e37282af55c0e3ce1dac4d9246fdaefcacb"},{"id":"M3K1767-01","date":"2023-11-28","commune":"MA3071000","communeName":"DANVERS WATER DEPT.","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["00014/16832"],"sum20":null,"pfas4":{"value":null,"valueText":"<0.015","unit":"µg/L","nonDetect":true,"lowerBound":true,"qualifiers":[{"name":"PFOA","valueText":"<0.004","unit":"µg/L"},{"name":"PFOS","valueText":"<0.004","unit":"µg/L"},{"name":"PFHxS","valueText":"<0.003","unit":"µg/L"},{"name":"PFNA","valueText":"<0.004","unit":"µg/L"}]},"revision":"c3af3b1195d5632d9e97412dd3c3fac958c8c1bd81dd9edaea92abccfbe28640"},{"id":"M3F1045-01","date":"2023-07-12","commune":"MA3071000","communeName":"DANVERS WATER DEPT.","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["00014/16832"],"sum20":null,"pfas4":{"value":null,"valueText":"<0.015","unit":"µg/L","nonDetect":true,"lowerBound":true,"qualifiers":[{"name":"PFOA","valueText":"<0.004","unit":"µg/L"},{"name":"PFOS","valueText":"<0.004","unit":"µg/L"},{"name":"PFHxS","valueText":"<0.003","unit":"µg/L"},{"name":"PFNA","valueText":"<0.004","unit":"µg/L"}]},"revision":"275888c896b746cacbeec4695cc0057727377966855fd835ec02c016c24042fe"}],"revision":"e621e256c257b1b135ae2e36cf7cf8b46d2105758b0dfcfc9faeed86f554954d","us":{"pwsid":"MA3071000","state":"MA","systemType":"CWS","sizeClass":"L","sourceWater":["GW","SW"],"counties":["Essex"],"zips":["01923","01949"],"entryPoints":2,"samples":8,"detectedCompounds":["PFOS"],"treatment":["NMT"],"potentialSources":"No","pfoaMax":null,"pfosMax":0.0052,"hazardIndex":null,"centroidSource":"sab"}}