{"schemaVersion":2,"id":"us-MA4219000","communeId":"MA4219000","name":"Norwell Water Department","slug":"norwell-water-department-ma4219000","country":"us","region":"Massachusetts","supplier":"NORWELL WATER DEPARTMENT","networks":[{"code":"00022/SSTF1","name":"Lab Sink Treated Water Sample Tap (South Street TF)"},{"code":"00033/WSTF1","name":"Lab Sink Treated Water Sample Tap (Washington Street TF)"},{"code":"00044/GSTF1","name":"Lab Sink Teated Water Sample Tap (Grove Street TF)"}],"latestSampleDate":"2024-02-26T00:00:00Z","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: granular activated carbon (GAC), no PFAS treatment (NMT). 3 entry points sampled, 6 sampling events between 2023-08-28 and 2024-02-26. The page's PFAS values come from the newest sample at Lab Sink Treated Water Sample Tap (South Street TF) (00022/SSTF1), 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":0.012,"valueText":"0.012","unit":"µg/L","limit":0.004,"limitUnit":"µg/L","status":"exceeded","sampleDate":"2024-02-26T00:00:00Z","sampleId":"810-95244-1"},"pfas4DetectedCount":2,"lowerBound":true,"sampledAt":{"commune":"MA4219000","name":"Lab Sink Treated Water Sample Tap (South Street TF)","network":"00022/SSTF1"},"qualifiers":[{"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":"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":"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":"810-95244-1","date":"2024-02-26","commune":"MA4219000","communeName":"NORWELL WATER DEPARTMENT","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["00022/SSTF1"],"sum20":null,"pfas4":{"value":0.012,"valueText":"0.012","unit":"µg/L","nonDetect":false,"lowerBound":true,"qualifiers":[{"name":"PFHxS","valueText":"<0.003","unit":"µg/L"},{"name":"PFNA","valueText":"<0.004","unit":"µg/L"}]},"revision":"dd460d1c5b094dca26688d38b552681e1925732d5e1017d21ff329987c530b33"},{"id":"810-95249-1","date":"2024-02-26","commune":"MA4219000","communeName":"NORWELL WATER DEPARTMENT","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["00033/WSTF1"],"sum20":null,"pfas4":{"value":0.0151,"valueText":"0.0151","unit":"µg/L","nonDetect":false,"lowerBound":true,"qualifiers":[{"name":"PFHxS","valueText":"<0.003","unit":"µg/L"},{"name":"PFNA","valueText":"<0.004","unit":"µg/L"}]},"revision":"884b0a45c7e029c869c72c2d3df2e06f374d696523a958ffd610b0ebc4ee0ec7"},{"id":"810-95252-1","date":"2024-02-26","commune":"MA4219000","communeName":"NORWELL WATER DEPARTMENT","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["00044/GSTF1"],"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":"a607721dc6abbcb1ad784f79240d0f5e9b9b48cc10e1b6fb250e00cff5bf88ad"},{"id":"810-78566-1","date":"2023-09-20","commune":"MA4219000","communeName":"NORWELL WATER DEPARTMENT","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["00022/SSTF1"],"sum20":null,"pfas4":{"value":0.0283,"valueText":"0.0283","unit":"µg/L","nonDetect":false,"lowerBound":true,"qualifiers":[{"name":"PFHxS","valueText":"<0.003","unit":"µg/L"},{"name":"PFNA","valueText":"<0.004","unit":"µg/L"}]},"revision":"7286108ae318c4e6d12119ccaabc204423971541f1c42206a385faa2f90df79d"},{"id":"810-75657-1","date":"2023-08-28","commune":"MA4219000","communeName":"NORWELL WATER DEPARTMENT","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["00033/WSTF1"],"sum20":null,"pfas4":{"value":0.0194,"valueText":"0.0194","unit":"µg/L","nonDetect":false,"lowerBound":true,"qualifiers":[{"name":"PFHxS","valueText":"<0.003","unit":"µg/L"},{"name":"PFNA","valueText":"<0.004","unit":"µg/L"}]},"revision":"b349c6eb558e86a0fdab9e535806598915068732c292917f7729baa65fdec82f"},{"id":"810-75658-1","date":"2023-08-28","commune":"MA4219000","communeName":"NORWELL WATER DEPARTMENT","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["00044/GSTF1"],"sum20":null,"pfas4":{"value":0.0048,"valueText":"0.0048","unit":"µg/L","nonDetect":false,"lowerBound":true,"qualifiers":[{"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":"ac2bafa131a2d97d7055935b5b4c4df29bd83f06c520e4bc3208f32658e1c0de"}],"revision":"5287490d2f37f0a27505a9d6844c3d6a9daa3ea649b72aed3574018891e2dfca","us":{"pwsid":"MA4219000","state":"MA","systemType":"CWS","sizeClass":"L","sourceWater":["GW"],"counties":["Plymouth"],"zips":["02061"],"entryPoints":3,"samples":6,"detectedCompounds":["PFOA","PFOS","PFBS","PFBA","PFHpA","PFHxA","PFPeA"],"treatment":["GAC","NMT"],"potentialSources":"Yes","pfoaMax":0.0099,"pfosMax":0.0184,"hazardIndex":0.0019,"centroidSource":"sab"}}