{"schemaVersion":2,"id":"us-MA4020002","communeId":"MA4020002","name":"Centerville Osterville Marstons Mills WD","slug":"centerville-osterville-marstons-mills-wd-ma4020002","country":"us","region":"Massachusetts","supplier":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","networks":[{"code":"10000/1620","name":"Entry Point to Dist. System (Wells #3 & #4 (Arena))"},{"code":"10002/1622","name":"Entry Point to Dist. System (GP Well #10 (Davis))"},{"code":"10006/1626","name":"Entry Point to Dist. System (GP Well #14 (Hayden))"},{"code":"10007/1627","name":"Entry Point to Dist. System (GP Well #15 (Hayden))"},{"code":"10008/1628","name":"Entry Point to Dist. System (GP Well #16 (Harrison))"},{"code":"10009/1629","name":"Entry Point to Dist. System (GP Well #17 (Hayden))"},{"code":"10010/1630","name":"Entry Point to Dist. System (GP Well #18 (Hayden))"},{"code":"10011/1631","name":"Entry Point to Dist. System (GP Well #19 (Harrison))"},{"code":"10020/17492","name":"Entry Point to Dist. System (Well #20 (Hayden))"},{"code":"10021/17493","name":"Entry Point to Dist. System (GP Well #21 (Hayden))"},{"code":"10022/17494","name":"Entry Point to Dist. System (GP Well #22 (Hayden))"},{"code":"10023/1633","name":"Entry Point to Dist. System (\"Wells #7, #8 & #11 (Craigville)\")"},{"code":"10024/1624","name":"Entry Point to Dist. System (Wells #12 & #13 (Murray))"},{"code":"10025/1632","name":"Entry Point to Dist. System (Wells #5 & #9 (Lumbert Mill))"},{"code":"10026/10026","name":"Entry Point to Dist. System (\"McShane Wells #1, #2 & #2A\")"}],"latestSampleDate":"2025-10-01T00:00:00Z","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: ion exchange (IEX). 15 entry points sampled, 30 sampling events between 2025-02-12 and 2025-10-01. The page's PFAS values come from the newest sample at Entry Point to Dist. System (Wells #3 & #4 (Arena)) (10000/1620), 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":0.0048,"valueText":"0.0048","unit":"µg/L","limit":0.004,"limitUnit":"µg/L","status":"exceeded","sampleDate":"2025-08-11T00:00:00Z","sampleId":"M5G0890-01"},"pfas4DetectedCount":1,"lowerBound":true,"sampledAt":{"commune":"MA4020002","name":"Entry Point to Dist. System (Wells #3 & #4 (Arena))","network":"10000/1620"},"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":"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":"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":"M5J0244-01","date":"2025-10-01","commune":"MA4020002","communeName":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10009/1629"],"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":"250f88e37bd2c33cbb5f5cacc5761dd0fe91a6ff3e533f0db3b9e9e479721b11"},{"id":"M5J0244-03","date":"2025-10-01","commune":"MA4020002","communeName":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10010/1630"],"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":"0bdbbffe96c7db174f8a3cb2fa2f0899946523194604fd84c96395763fcbafd0"},{"id":"M5J0244-05","date":"2025-10-01","commune":"MA4020002","communeName":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10023/1633"],"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":"80e164a24eabd146bd4a316ce37afea63e6ccf6f1b69d15ff249f8515c6f97f4"},{"id":"M5G0890-07","date":"2025-08-25","commune":"MA4020002","communeName":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10007/1627"],"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":"5468d029cf67728f78680aaa24493f4d8f9be68407f94284f5d3d59c6b48a2d6"},{"id":"M5G0890-15","date":"2025-08-20","commune":"MA4020002","communeName":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10011/1631"],"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":"d2e70ba4475a2093d0aa722a2c67f321e7fe032c8cac00133ebe93c4286d7420"},{"id":"M5G0890-19","date":"2025-08-20","commune":"MA4020002","communeName":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10021/17493"],"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":"a66eb2a72bb20d361aa3821b068090961a2a661de55f0f29c390c749dcbfc50d"},{"id":"M5G0890-05","date":"2025-08-18","commune":"MA4020002","communeName":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10006/1626"],"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":"fca0ed17ef84e2072f989ebc664233c1aed0b2bf82693498480c545fb52e388b"},{"id":"M5G0890-17","date":"2025-08-18","commune":"MA4020002","communeName":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10020/17492"],"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":"a6d2a19d625d2eef8ab4ae04c332a1528565adda1c4ec64bd1049f2b0fbfa07d"},{"id":"M5G0890-21","date":"2025-08-18","commune":"MA4020002","communeName":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10022/17494"],"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":"78c4486743bc74d4b29dc12e3c296e69442fc4db5b6344596f40cbd6fcc52467"},{"id":"M5G0890-01","date":"2025-08-11","commune":"MA4020002","communeName":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10000/1620"],"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":"b05d2cb9e51dcb249e1ff95cfa03f5e748ea800a99aabbd88ab25c48dd665ab7"},{"id":"M5G0890-03","date":"2025-08-11","commune":"MA4020002","communeName":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10002/1622"],"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":"9261fef9b40086e243cfc429b947ed02133afba325cd2802ec714a3f0bc4155d"},{"id":"M5G0890-09","date":"2025-08-11","commune":"MA4020002","communeName":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10008/1628"],"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":"0763e0215d9349fbcdec10517919ea5258d48dd53a2f3165d685ffa231b294fb"},{"id":"M5G0890-25","date":"2025-08-11","commune":"MA4020002","communeName":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10024/1624"],"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":"c6e0e90fe53ed60865d1d4a15f1d8bcda1d17eb6397c382a2e4000e740c0401d"},{"id":"M5G0890-27","date":"2025-08-11","commune":"MA4020002","communeName":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10025/1632"],"sum20":null,"pfas4":{"value":0.0045,"valueText":"0.0045","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":"43105ecede08d6b7ac6bf73c2ea21032c454502bc8368c54c80d2f227e7397d2"},{"id":"M5G0890-29","date":"2025-08-11","commune":"MA4020002","communeName":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10026/10026"],"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":"11ebd8b11ccd3bd77b5b348076eb0783d02eac237c35d195ea19522650b019da"},{"id":"M5E1509-01","date":"2025-05-21","commune":"MA4020002","communeName":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10023/1633"],"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":"268bddb917c3979b8498496050e0a3d59a529bd5e75328c9fe2f9a956408bd36"},{"id":"M5E0224-01","date":"2025-05-01","commune":"MA4020002","communeName":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10009/1629"],"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":"5323c3d7e58eca6cbccb2be51ced1dc5ffe6307f46740eb43541bed615254ead"},{"id":"M5E0224-03","date":"2025-05-01","commune":"MA4020002","communeName":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10010/1630"],"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":"1000915ba74c266e7bbbd25dbacb269b6bed19654f3e6092c6588ddefcc4dc30"},{"id":"M5A0748-21","date":"2025-02-20","commune":"MA4020002","communeName":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10022/17494"],"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":"c3a789d5c70ac7cfe6d0be9b654f7f0e26eb9063a7ff415de7ccc94a31a50bc3"},{"id":"M5A0748-01","date":"2025-02-19","commune":"MA4020002","communeName":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10000/1620"],"sum20":null,"pfas4":{"value":0.0049,"valueText":"0.0049","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":"e3383f625f115febed26a96cdabf69421552700eed799014f57ae2bcb275a8f9"},{"id":"M5A0748-09","date":"2025-02-19","commune":"MA4020002","communeName":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10008/1628"],"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":"b773bba3989be0a39e14cf6e6e61dbca7cdb07176092e41e88a79d749ce2b4a4"},{"id":"M5A0748-25","date":"2025-02-19","commune":"MA4020002","communeName":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10024/1624"],"sum20":null,"pfas4":{"value":0.0031,"valueText":"0.0031","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":"c17d2a71ec223d23f6587285eac1216daa09eb0fbbb3caad57414188bd4ea82f"},{"id":"M5A0748-27","date":"2025-02-19","commune":"MA4020002","communeName":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10025/1632"],"sum20":null,"pfas4":{"value":0.003,"valueText":"0.003","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":"cf9a15cce87a8db17377f5585bd342c401528c1e97566159a7cc70fafeea8168"},{"id":"M5A0748-05","date":"2025-02-13","commune":"MA4020002","communeName":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10006/1626"],"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":"2cc7b689d262b850f395bdf6a1902167e7ca97f5b38a96ac996bff91f88f445c"},{"id":"M5A0748-17","date":"2025-02-13","commune":"MA4020002","communeName":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10020/17492"],"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":"1d4e9af76501f8ddf6ec4c8539278819bcde2b698757cf9a5684905dc320d7f3"},{"id":"M5A0748-19","date":"2025-02-13","commune":"MA4020002","communeName":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10021/17493"],"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":"10848fdea55c03ae9f29c7f33f94a1860fd2b1b1b4985719f4cbd5b71e27da95"},{"id":"M5A0748-03","date":"2025-02-12","commune":"MA4020002","communeName":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10002/1622"],"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":"5c15159e794b90e7a1f18be293202ffe24cca1b05c20154fb56723e598f0d10a"},{"id":"M5A0748-07","date":"2025-02-12","commune":"MA4020002","communeName":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10007/1627"],"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":"b4534d13483c1a9f441e6f2d261654ff6852c4e14b0b25cde739899149aa428f"},{"id":"M5A0748-15","date":"2025-02-12","commune":"MA4020002","communeName":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10011/1631"],"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":"24e84ac697aeb5a252a40cb1f8516dd3dd49d36b8421474674f261156d643803"},{"id":"M5A0748-29","date":"2025-02-12","commune":"MA4020002","communeName":"CENTERVILLE OSTERVILLE MARSTONS MILLS WD","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10026/10026"],"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":"642a817f9de69749394d08b8c4836101eb967356a3198c69ed669b06dec35de9"}],"revision":"c7597cd3f1adca0a5ce8002fa1331ef425acd49703e8bd0ffc3438ea6c4364c5","us":{"pwsid":"MA4020002","state":"MA","systemType":"CWS","sizeClass":"L","sourceWater":["GW"],"counties":["Barnstable"],"zips":["02632","02634","02648","02655"],"entryPoints":15,"samples":30,"detectedCompounds":["PFOA","PFHxS","PFBS","PFHxA","PFPeA"],"treatment":["IEX"],"potentialSources":"Yes","pfoaMax":0.0049,"pfosMax":null,"hazardIndex":null,"centroidSource":"sab"}}