{"schemaVersion":2,"id":"us-NY4519111","communeId":"NY4519111","name":"Halfmoon Water District (Troy)","slug":"halfmoon-water-district-troy-ny4519111","country":"us","region":"New York","supplier":"HALFMOON WATER DISTRICT (TROY)","networks":[{"code":"31577/EP001","name":"Entry Point to Dist. System (Troy Water Interconnect)"},{"code":"CC02/EP002","name":"Entry Point (CONNECTION FROM SCWA)"}],"latestSampleDate":"2023-11-28T00:00:00Z","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, 12 sampling events between 2023-01-09 and 2023-11-28. The page's PFAS values come from the newest sample at Entry Point to Dist. System (Troy Water Interconnect) (31577/EP001), 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":"2023-11-28T00:00:00Z","sampleId":"M3K1852-01","nonDetect":true,"upperBound":0.015},"pfas4DetectedCount":0,"lowerBound":true,"sampledAt":{"commune":"NY4519111","name":"Entry Point to Dist. System (Troy Water Interconnect)","network":"31577/EP001"},"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":"NFDHA","valueText":"<0.02","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":"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":"M3K1852-01","date":"2023-11-28","commune":"NY4519111","communeName":"HALFMOON WATER DISTRICT (TROY)","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["31577/EP001"],"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":"4d04472f0fa502bf6dff8c11261e65d7609cefb11824308e6e2f777dd9e32e54"},{"id":"M3K1852-03","date":"2023-11-28","commune":"NY4519111","communeName":"HALFMOON WATER DISTRICT (TROY)","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["CC02/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":"a02a9d502d3fc9bf180a7780a09194bb69be5fc19091feb9450890d80ee3d20f"},{"id":"M3F1203-01","date":"2023-07-11","commune":"NY4519111","communeName":"HALFMOON WATER DISTRICT (TROY)","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["31577/EP001"],"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":"f93f57b73930d16de5b131e40152019b99eaa5a8ceadbe006e55cc8c99f5c76e"},{"id":"M3F1203-03","date":"2023-07-11","commune":"NY4519111","communeName":"HALFMOON WATER DISTRICT (TROY)","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["CC02/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":"04c9f97f56c417ebf6ed5c2b8f5dfe3196fe85e9441cc640fac863f6940fc7c8"},{"id":"M3C1217-01","date":"2023-04-04","commune":"NY4519111","communeName":"HALFMOON WATER DISTRICT (TROY)","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["31577/EP001"],"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":"8795647e8319e9c555c777e0062645bc58db59e9d6d1d157b1ab85434f17c4fe"},{"id":"M3C1217-03","date":"2023-04-04","commune":"NY4519111","communeName":"HALFMOON WATER DISTRICT (TROY)","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["CC02/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":"ceb2a03b99b626bca09c67fd8747fdd75313574beb1e32c8f639673a0423141e"},{"id":"M3B0317-01","date":"2023-01-31","commune":"NY4519111","communeName":"HALFMOON WATER DISTRICT (TROY)","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["31577/EP001"],"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":"9e7a9cda8ed67a42a6ad41fbf7b9f4cd3aa388c35e23755157b94db57625bb82"},{"id":"M3B0317-03","date":"2023-01-31","commune":"NY4519111","communeName":"HALFMOON WATER DISTRICT (TROY)","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["CC02/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":"f69a3f82f463ddfdfeb17dc562c248e926d95d3a3520bf80e3240b6d1dbdfef5"}],"revision":"67aa3acca3204106a9ed41f67f756aa67c44d8eaab1421e485de04abdb865e62","us":{"pwsid":"NY4519111","state":"NY","systemType":"CWS","sizeClass":"L","sourceWater":["SW"],"counties":["Saratoga"],"zips":["12065","12118","12188"],"entryPoints":2,"samples":12,"detectedCompounds":[],"treatment":["NMT"],"potentialSources":"DK","pfoaMax":null,"pfosMax":null,"hazardIndex":null,"centroidSource":"sab"}}