{"schemaVersion":2,"id":"us-MA4242000","communeId":"MA4242000","name":"Provincetown Water Department","slug":"provincetown-water-department-ma4242000","country":"us","region":"Massachusetts","supplier":"PROVINCETOWN WATER DEPARTMENT","networks":[{"code":"00015/EP002","name":"Entry Point to Dist. System (Knowles Crossing Station)"},{"code":"10360/10360","name":"Entry Point to Dist. System (South Hollow Plant)"}],"latestSampleDate":"2024-04-10T00:00:00Z","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, 4 sampling events between 2023-10-18 and 2024-04-10. The page's PFAS values come from the newest sample at Entry Point to Dist. System (Knowles Crossing Station) (00015/EP002), 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":null,"valueText":"<0.015","unit":"µg/L","limit":0.004,"limitUnit":"µg/L","status":"ok","sampleDate":"2024-04-10T00:00:00Z","sampleId":"L2419558-01","nonDetect":true,"upperBound":0.015},"pfas4DetectedCount":0,"lowerBound":true,"sampledAt":{"commune":"MA4242000","name":"Entry Point to Dist. System (Knowles Crossing Station)","network":"00015/EP002"},"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"},{"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":"inconclusive"},"sweden":{"value":0.004,"jurisdiction":"se"},"franceSum20":{"value":0.1,"jurisdiction":"fr"}}},"samples":[{"id":"L2419558-01","date":"2024-04-10","commune":"MA4242000","communeName":"PROVINCETOWN WATER DEPARTMENT","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["00015/EP002"],"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":"d7353dc809944d09eaee2b84cb08754040568a6c11dee8c985518b570b36a37c"},{"id":"L2419558-03","date":"2024-04-10","commune":"MA4242000","communeName":"PROVINCETOWN WATER DEPARTMENT","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10360/10360"],"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":"62f894660a1f0a9f1208503b85df27a8d4580de093ea1633226b2a84945d0103"},{"id":"L2361914-01","date":"2023-10-18","commune":"MA4242000","communeName":"PROVINCETOWN WATER DEPARTMENT","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10360/10360"],"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":"97875b58b9804b77f1fa622261ffe1584605e33b4c56f07983b9214a1c1aa8c4"},{"id":"L2361914-02","date":"2023-10-18","commune":"MA4242000","communeName":"PROVINCETOWN WATER DEPARTMENT","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["00015/EP002"],"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":"c51d36e7585161c9584d2c786843d1083269f1b9f5af988f230085775489753d"}],"revision":"6820fe48137d9be6f12e1ef1de41676a8d6507024da5ae0137ba6811654244cf","us":{"pwsid":"MA4242000","state":"MA","systemType":"CWS","sizeClass":"L","sourceWater":["GW"],"counties":["Barnstable"],"zips":["02652","02657"],"entryPoints":2,"samples":4,"detectedCompounds":[],"treatment":["NMT"],"potentialSources":"No","pfoaMax":null,"pfosMax":null,"hazardIndex":null,"centroidSource":"sab"}}