{"schemaVersion":2,"id":"us-MA4122000","communeId":"MA4122000","name":"Hanover Water Dept","slug":"hanover-water-dept-ma4122000","country":"us","region":"Massachusetts","supplier":"HANOVER WATER DEPT, MA","networks":[{"code":"00022/15682","name":"Entry Point to Dist. System (Pond Street TP)"},{"code":"00031/20748","name":"Entry Point to Dist. System (Philip Beal TP)"},{"code":"45000/40000","name":"Entry Point to Dist. System (Broadway TP)"}],"latestSampleDate":"2024-04-11T00:00:00Z","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 2023-08-22 and 2024-04-11. The page's PFAS values come from the newest sample at Entry Point to Dist. System (Pond Street TP) (00022/15682), 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":0.0044,"valueText":"0.0044","unit":"µg/L","limit":0.004,"limitUnit":"µg/L","status":"exceeded","sampleDate":"2024-04-11T00:00:00Z","sampleId":"810-100618-1"},"pfas4DetectedCount":1,"lowerBound":true,"sampledAt":{"commune":"MA4122000","name":"Entry Point to Dist. System (Pond Street TP)","network":"00022/15682"},"qualifiers":[{"name":"PFOA","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":"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":"over"},"sweden":{"value":0.004,"jurisdiction":"se"},"franceSum20":{"value":0.1,"jurisdiction":"fr"}}},"samples":[{"id":"810-100618-1","date":"2024-04-11","commune":"MA4122000","communeName":"HANOVER WATER DEPT, MA","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["00022/15682"],"sum20":null,"pfas4":{"value":0.0044,"valueText":"0.0044","unit":"µg/L","nonDetect":false,"lowerBound":true,"qualifiers":[{"name":"PFOA","valueText":"<0.004","unit":"µg/L"},{"name":"PFHxS","valueText":"<0.003","unit":"µg/L"},{"name":"PFNA","valueText":"<0.004","unit":"µg/L"}]},"revision":"671c5971d0539f6bd03521ce5015f4fbd016d9c5a4825a340d0418eabae6ec32"},{"id":"810-100620-1","date":"2024-04-11","commune":"MA4122000","communeName":"HANOVER WATER DEPT, MA","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["00031/20748"],"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":"6b4e46b1a7995e796d5a07402c6646dae9333e9e778b04ed4f730d528b6ad561"},{"id":"810-100623-1","date":"2024-04-11","commune":"MA4122000","communeName":"HANOVER WATER DEPT, MA","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["45000/40000"],"sum20":null,"pfas4":{"value":0.0055,"valueText":"0.0055","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":"1123f5e1c13340bd075e167aa36c80ea57989c854046528e5629f00f8521c610"},{"id":"810-74993-1","date":"2023-08-22","commune":"MA4122000","communeName":"HANOVER WATER DEPT, MA","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["45000/40000"],"sum20":null,"pfas4":{"value":0.0052,"valueText":"0.0052","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":"f3b01d0642237669b6d3f4aa0c8817320b1d5e6f2feac9ccffa7cb83ea58ccbb"},{"id":"810-74997-1","date":"2023-08-22","commune":"MA4122000","communeName":"HANOVER WATER DEPT, MA","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["00031/20748"],"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":"ebbea7d1b2fba480c5636057aace1df6872e3652e694d9974abe716b962cb80c"},{"id":"810-75000-1","date":"2023-08-22","commune":"MA4122000","communeName":"HANOVER WATER DEPT, MA","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["00022/15682"],"sum20":null,"pfas4":{"value":0.0203,"valueText":"0.0203","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":"24aa78c7cf9186bcef3d911050be4d932cdf677b5ad421487b4a7fe9ae26d340"}],"revision":"dc9f731bafbf9da39b7b646378da2d33107fd66822ba56554656482f54e5b815","us":{"pwsid":"MA4122000","state":"MA","systemType":"CWS","sizeClass":"L","sourceWater":["GW"],"counties":["Plymouth"],"zips":["02339"],"entryPoints":3,"samples":6,"detectedCompounds":["PFOA","PFOS","PFBS","PFBA","PFHpA","PFHxA","PFPeA"],"treatment":["NMT","OTH"],"potentialSources":"Yes","pfoaMax":0.0089,"pfosMax":0.0114,"hazardIndex":0.0015,"centroidSource":"sab"}}