{"schemaVersion":2,"id":"us-MA4218000","communeId":"MA4218000","name":"Norton Water Department","slug":"norton-water-department-ma4218000","country":"us","region":"Massachusetts","supplier":"NORTON WATER DEPARTMENT","networks":[{"code":"00001/2020","name":"Entry Point to Dist. System (GP Well #1 (Pine Street))"},{"code":"00003/2018","name":"Entry Point to Dist. System (GP Well #3)"},{"code":"00004/2019","name":"Entry Point to Dist. System (Filtration Plant (Wells 4,5,6))"}],"latestSampleDate":"2024-02-07T00:00:00Z","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). 3 entry points sampled, 6 sampling events between 2023-08-15 and 2024-02-07. The page's PFAS values come from the newest sample at Entry Point to Dist. System (GP Well #3) (00003/2018), 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":0.0088,"valueText":"0.0088","unit":"µg/L","limit":0.004,"limitUnit":"µg/L","status":"exceeded","sampleDate":"2024-02-07T00:00:00Z","sampleId":"810-93158-1"},"pfas4DetectedCount":1,"lowerBound":true,"sampledAt":{"commune":"MA4218000","name":"Entry Point to Dist. System (GP Well #3)","network":"00003/2018"},"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"},{"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":"PFHpS","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":"810-93145-1","date":"2024-02-07","commune":"MA4218000","communeName":"NORTON WATER DEPARTMENT","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["00004/2019"],"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":"f60ae8ccdd4254cc366036d5e466e8a8a9089a3c5e3a2342e4e4dee302dd2dc9"},{"id":"810-93158-1","date":"2024-02-07","commune":"MA4218000","communeName":"NORTON WATER DEPARTMENT","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["00003/2018"],"sum20":null,"pfas4":{"value":0.0088,"valueText":"0.0088","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":"bdc5f34fe07b391af49c6119bd26c5d9f6c59d2e9764b161bace8f8907ff5ca4"},{"id":"810-93161-1","date":"2024-02-07","commune":"MA4218000","communeName":"NORTON WATER DEPARTMENT","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["00001/2020"],"sum20":null,"pfas4":{"value":0.0064,"valueText":"0.0064","unit":"µg/L","nonDetect":false,"lowerBound":true,"qualifiers":[{"name":"PFOA","valueText":"<0.004","unit":"µg/L"},{"name":"PFOS","valueText":"<0.004","unit":"µg/L"},{"name":"PFNA","valueText":"<0.004","unit":"µg/L"}]},"revision":"3845a18a66cd2e246646cd4cb84c64e1593ee9af97873dd03f3e8926e9287c58"},{"id":"810-74002-1","date":"2023-08-15","commune":"MA4218000","communeName":"NORTON WATER DEPARTMENT","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["00004/2019"],"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":"70107c16f876d216e862d077fbcd2343ddacf1118b87d0c6e37d034102d1a16c"},{"id":"810-74005-1","date":"2023-08-15","commune":"MA4218000","communeName":"NORTON WATER DEPARTMENT","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["00003/2018"],"sum20":null,"pfas4":{"value":0.0168,"valueText":"0.0168","unit":"µg/L","nonDetect":false,"lowerBound":true,"qualifiers":[{"name":"PFNA","valueText":"<0.004","unit":"µg/L"}]},"revision":"402f68f26108634b735836042ce2c2356234723e2103bab8b8d15d5c1751ff05"},{"id":"810-74007-1","date":"2023-08-15","commune":"MA4218000","communeName":"NORTON WATER DEPARTMENT","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["00001/2020"],"sum20":null,"pfas4":{"value":0.0042,"valueText":"0.0042","unit":"µg/L","nonDetect":false,"lowerBound":true,"qualifiers":[{"name":"PFOA","valueText":"<0.004","unit":"µg/L"},{"name":"PFOS","valueText":"<0.004","unit":"µg/L"},{"name":"PFNA","valueText":"<0.004","unit":"µg/L"}]},"revision":"43778e7b40916f65252b7c2592bdd064556dcf7dc2bea8896c485821cb30ab09"}],"revision":"c5cfd92fa5169af1f317a9b916b2d4b6dde924bab30a37820237224159b0874f","us":{"pwsid":"MA4218000","state":"MA","systemType":"CWS","sizeClass":"L","sourceWater":["GW"],"counties":["Bristol"],"zips":["02766"],"entryPoints":3,"samples":6,"detectedCompounds":["PFOA","PFOS","PFHxS","PFBS","PFHpA","PFHxA","PFPeA"],"treatment":["NMT"],"potentialSources":"No","pfoaMax":0.0088,"pfosMax":0.004,"hazardIndex":0.0024,"centroidSource":"sab"}}