{"schemaVersion":2,"id":"us-MA2138000","communeId":"MA2138000","name":"Hopedale Water Department","slug":"hopedale-water-department-ma2138000","country":"us","region":"Massachusetts","supplier":"HOPEDALE WATER DEPARTMENT","networks":[{"code":"10000/MULT3","name":"FINISHED: GREEN ST. WTP (BLEND) (Green Street WTP)"}],"latestSampleDate":"2025-10-06T00:00:00Z","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: granular activated carbon (GAC), no PFAS treatment (NMT). 1 entry point sampled, 4 sampling events between 2025-01-06 and 2025-10-06. The page's PFAS values come from the newest sample at FINISHED: GREEN ST. WTP (BLEND) (Green Street WTP) (10000/MULT3). 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":0.0111,"valueText":"0.0111","unit":"µg/L","limit":0.004,"limitUnit":"µg/L","status":"exceeded","sampleDate":"2025-10-06T00:00:00Z","sampleId":"133197P"},"pfas4DetectedCount":2,"lowerBound":true,"sampledAt":{"commune":"MA2138000","name":"FINISHED: GREEN ST. WTP (BLEND) (Green Street WTP)","network":"10000/MULT3"},"qualifiers":[{"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":"133197P","date":"2025-10-06","commune":"MA2138000","communeName":"HOPEDALE WATER DEPARTMENT","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10000/MULT3"],"sum20":null,"pfas4":{"value":0.0111,"valueText":"0.0111","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":"624192c72111cb62849de17b82d36675b8db72dcd34334351511cb47f5fc74cd"},{"id":"130745P","date":"2025-07-16","commune":"MA2138000","communeName":"HOPEDALE WATER DEPARTMENT","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10000/MULT3"],"sum20":null,"pfas4":{"value":0.0056,"valueText":"0.0056","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":"f486e4275ca93e30b33c715d7a4a84bde495055b66e707129ea2773184816ade"},{"id":"127530P","date":"2025-04-07","commune":"MA2138000","communeName":"HOPEDALE WATER DEPARTMENT","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10000/MULT3"],"sum20":null,"pfas4":{"value":0.0046,"valueText":"0.0046","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":"4301b90cc702c6b3108aac4a214bbf1bd364ebab04dc4518e72c5a83ead46741"},{"id":"124591P","date":"2025-01-06","commune":"MA2138000","communeName":"HOPEDALE WATER DEPARTMENT","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["10000/MULT3"],"sum20":null,"pfas4":{"value":0.0043,"valueText":"0.0043","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":"3f8b4741c31b459d1dfb9e248cdb7f835e0df5dc44d9c8f108ecd8ef75d242a9"}],"revision":"1f92c3b302188b196baed8546da3c286637e696c479998f758e339ea3b57f082","us":{"pwsid":"MA2138000","state":"MA","systemType":"CWS","sizeClass":"S","sourceWater":["SW"],"counties":["Worcester"],"zips":["01747"],"entryPoints":1,"samples":4,"detectedCompounds":["PFOA","PFOS","PFHxA","PFPeA"],"treatment":["GAC","NMT"],"potentialSources":"No","pfoaMax":0.0068,"pfosMax":0.0043,"hazardIndex":null,"centroidSource":"sab"}}