{"schemaVersion":2,"id":"us-MA4042000","communeId":"MA4042000","name":"Bridgewater Water Department","slug":"bridgewater-water-department-ma4042000","country":"us","region":"Massachusetts","supplier":"BRIDGEWATER WATER DEPARTMENT","networks":[{"code":"00023/21952","name":"Entry Point to Dist. System (Wells #1, #2, #4 & #5 CPTP)"},{"code":"10080/10080","name":"Entry Point to Dist. System (High Street Treatment Plant)"},{"code":"90001/10046","name":"Entry Point to Dist. System (Wells #10A & #10B)"}],"latestSampleDate":"2023-12-13T00:00:00Z","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), other treatment (OTH). 3 entry points sampled, 6 sampling events between 2023-06-22 and 2023-12-13. The page's PFAS values come from the newest sample at Entry Point to Dist. System (Wells #1, #2, #4 & #5 CPTP) (00023/21952), 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":0.018,"valueText":"0.018","unit":"µg/L","limit":0.004,"limitUnit":"µg/L","status":"exceeded","sampleDate":"2023-12-13T00:00:00Z","sampleId":"L2373633-03"},"pfas4DetectedCount":3,"lowerBound":true,"sampledAt":{"commune":"MA4042000","name":"Entry Point to Dist. System (Wells #1, #2, #4 & #5 CPTP)","network":"00023/21952"},"qualifiers":[{"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":"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":"L2373633-01","date":"2023-12-13","commune":"MA4042000","communeName":"BRIDGEWATER WATER DEPARTMENT","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10080/10080"],"sum20":null,"pfas4":{"value":0.005,"valueText":"0.005","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":"f871b8d5d4081cafbab40d1e05b48f7a7219b2dd5d4538b27959947d0de9c81a"},{"id":"L2373633-03","date":"2023-12-13","commune":"MA4042000","communeName":"BRIDGEWATER WATER DEPARTMENT","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["00023/21952"],"sum20":null,"pfas4":{"value":0.018,"valueText":"0.018","unit":"µg/L","nonDetect":false,"lowerBound":true,"qualifiers":[{"name":"PFNA","valueText":"<0.004","unit":"µg/L"}]},"revision":"03f2c276b766abebad7ac16a26178faf40807286aa494cddc5583f77e320769b"},{"id":"L2373633-05","date":"2023-12-13","commune":"MA4042000","communeName":"BRIDGEWATER WATER DEPARTMENT","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["90001/10046"],"sum20":null,"pfas4":{"value":0.009,"valueText":"0.009","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":"a3bae327a8561d7cb5879ab30a2c14682ce03cc64947996d273b3647f4258d49"},{"id":"L2336005-01","date":"2023-06-22","commune":"MA4042000","communeName":"BRIDGEWATER WATER DEPARTMENT","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10080/10080"],"sum20":null,"pfas4":{"value":0.006,"valueText":"0.006","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":"4df0b28327e839293937162c003438f122618998a3a333b7bf06112458be4166"},{"id":"L2336005-03","date":"2023-06-22","commune":"MA4042000","communeName":"BRIDGEWATER WATER DEPARTMENT","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["00023/21952"],"sum20":null,"pfas4":{"value":0.019,"valueText":"0.019","unit":"µg/L","nonDetect":false,"lowerBound":true,"qualifiers":[{"name":"PFNA","valueText":"<0.004","unit":"µg/L"}]},"revision":"66af555d2321e22a369a8b2ba1c18fbaff55c389f61ac32442556cc98f33cbd0"},{"id":"L2336005-05","date":"2023-06-22","commune":"MA4042000","communeName":"BRIDGEWATER WATER DEPARTMENT","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["90001/10046"],"sum20":null,"pfas4":{"value":0.009,"valueText":"0.009","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":"ad1833a3a4fb90fb2210e686e04de25b58e45636b65cb960c327e4d69176e46f"}],"revision":"80937de79d95e43b1966be9c3f999f09c7adf872ec3c3e902eed0ce0a7c494c4","us":{"pwsid":"MA4042000","state":"MA","systemType":"CWS","sizeClass":"L","sourceWater":["GW"],"counties":["Plymouth"],"zips":["02324"],"entryPoints":3,"samples":6,"detectedCompounds":["PFOA","PFOS","PFHxS","PFBS","PFHpA","PFHxA","PFPeA"],"treatment":["NMT","OTH"],"potentialSources":"Yes","pfoaMax":0.009,"pfosMax":0.007,"hazardIndex":0.4025,"centroidSource":"sab"}}