{"schemaVersion":2,"id":"us-NY7003493","communeId":"NY7003493","name":"New York City System","slug":"new-york-city-system-ny7003493","country":"us","region":"New York","supplier":"NEW YORK CITY SYSTEM","networks":[{"code":"94001/EP1S07","name":"Shaft 7 Tunnel 1 (Tunnel 1 1S07)"},{"code":"94002/EP1S03A","name":"Shaft 3A Tunnel 2 (Tunnel 2 1S03A)"},{"code":"94003/EP1S03B","name":"Shaft 3B Tunnel 3 (Tunnel 3 1S03B)"},{"code":"94004/EP1SCL1","name":"Croton Distribution Chamber Low Service Tunnel (Croton 1SCL1)"}],"latestSampleDate":"2025-01-02T00:00:00Z","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). 4 entry points sampled, 16 sampling events between 2023-10-25 and 2025-01-02. The page's PFAS values come from the newest sample at Croton Distribution Chamber Low Service Tunnel (Croton 1SCL1) (94004/EP1SCL1), 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":"2025-01-02T00:00:00Z","sampleId":"380-128435-1","nonDetect":true,"upperBound":0.015},"pfas4DetectedCount":0,"lowerBound":true,"sampledAt":{"commune":"NY7003493","name":"Croton Distribution Chamber Low Service Tunnel (Croton 1SCL1)","network":"94004/EP1SCL1"},"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":"380-128435-1","date":"2025-01-02","commune":"NY7003493","communeName":"NEW YORK CITY SYSTEM","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["94004/EP1SCL1"],"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":"b941b04ee957afd392417f00a6f1689c5c37ff22358226b9340695829d620c83"},{"id":"380-121273-1","date":"2024-11-06","commune":"NY7003493","communeName":"NEW YORK CITY SYSTEM","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["94004/EP1SCL1"],"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":"9069206868c3b35035a17fbde028e0c69e7118353871c68483e8157e64df2e80"},{"id":"380-112891-1","date":"2024-09-11","commune":"NY7003493","communeName":"NEW YORK CITY SYSTEM","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["94004/EP1SCL1"],"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":"6d2627ff25888f404aa8087bfb8f910d6ae9e278f0f277394e24955a7f9dc7d8"},{"id":"380-106565-1","date":"2024-07-30","commune":"NY7003493","communeName":"NEW YORK CITY SYSTEM","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["94001/EP1S07"],"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":"06e7fc03463b756558bea7f53d83833f41ad3d0364383ad5975b17f18b067f4b"},{"id":"380-106565-2","date":"2024-07-30","commune":"NY7003493","communeName":"NEW YORK CITY SYSTEM","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["94002/EP1S03A"],"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":"a35b482d417794ae02fd917b1c9d84e36628a460ac59ecb9cf8473df1a2e8b42"},{"id":"380-106565-3","date":"2024-07-30","commune":"NY7003493","communeName":"NEW YORK CITY SYSTEM","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["94003/EP1S03B"],"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":"2fd259f5ce11b3509ae534f04dc2e54a649e6ef8e95ab1ac34387096abb06402"},{"id":"380-90810-1","date":"2024-04-09","commune":"NY7003493","communeName":"NEW YORK CITY SYSTEM","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["94001/EP1S07"],"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":"0ce90110efc12965cfb13cbeae2af27ab7c99aacf31a7231dd0032376751fc34"},{"id":"380-90810-2","date":"2024-04-09","commune":"NY7003493","communeName":"NEW YORK CITY SYSTEM","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["94002/EP1S03A"],"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":"618a49e0723428f5427c82b5d2092ac93f94a5215a37c5430c455673efff7932"},{"id":"380-90810-3","date":"2024-04-09","commune":"NY7003493","communeName":"NEW YORK CITY SYSTEM","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["94003/EP1S03B"],"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":"88512261d09d459277f98a7f6333137e1b2d9e69920dda9953ef6cb21937af05"},{"id":"380-79252-1","date":"2024-01-16","commune":"NY7003493","communeName":"NEW YORK CITY SYSTEM","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["94001/EP1S07"],"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":"1e8a70f5a56448fa2e53d5e8a745bb4e14512a03e68c48fcac583fce3483229d"},{"id":"380-79252-2","date":"2024-01-16","commune":"NY7003493","communeName":"NEW YORK CITY SYSTEM","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["94002/EP1S03A"],"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":"4721181a51dcbbeaa322f778204a4d5ac5c6ef19451fe54e5445e65e57f72dc0"},{"id":"380-79252-3","date":"2024-01-16","commune":"NY7003493","communeName":"NEW YORK CITY SYSTEM","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["94003/EP1S03B"],"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":"8a2d271f702c8dce7cc0e3297b0aee615553e41e896f6dabb5562979f2d674d7"},{"id":"380-68729-1","date":"2023-10-25","commune":"NY7003493","communeName":"NEW YORK CITY SYSTEM","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["94001/EP1S07"],"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":"219fcd24da1b2c20cfc6b6748f525dcd9b9903973dc2f18cf6a98690e3a85f70"},{"id":"380-68729-2","date":"2023-10-25","commune":"NY7003493","communeName":"NEW YORK CITY SYSTEM","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["94002/EP1S03A"],"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":"f995f84aab2de06d0f94603529f6c1d2e0eafe192d438d7db89de57165fae5cc"},{"id":"380-68729-3","date":"2023-10-25","commune":"NY7003493","communeName":"NEW YORK CITY SYSTEM","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["94003/EP1S03B"],"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":"977f79f54a40cdf4f3906aa692628c5175a252186cfc93e927c85444947cb3f0"},{"id":"380-68729-4","date":"2023-10-25","commune":"NY7003493","communeName":"NEW YORK CITY SYSTEM","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["94004/EP1SCL1"],"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":"4647ce209bbef528515b06595ea6d178df8af1555266c62b1732965691697274"}],"revision":"84b2d0fe0a02097fc496fa256d0da35f2e16414b93768eab20b9d7a911c6da2d","us":{"pwsid":"NY7003493","state":"NY","systemType":"CWS","sizeClass":"L","sourceWater":["SW"],"counties":["Richmond","Queens","New York","Kings","Bronx"],"zips":["10001","10002","10003","10004","10005","10006","10007","10008","10009","10010","10011","10012","10013","10014","10016","10017","10018","10019","10020","10021","10022","10023","10024","10025","10026","10027","10028","10029","10030","10031","10032","10033","10034","10035","10036","10037","10038","10039","10040","10041","10043","10044","10045","10055","10060","10065","10069","10075","10080","10081","10087","10090","10095","10101","10102","10103","10104","10105","10106","10107","10108","10109","10110","10111","10112","10113","10114","10115","10116","10117","10118","10119","10120","10121","10122","10123","10124","10125","10126","10128","10129","10130","10131","10132","10133","10138","10150","10151","10152","10153","10154","10155","10156","10157","10158","10159","10160","10161","10162","10163","10164","10165","10166","10167","10168","10169","10170","10171","10172","10173","10174","10175","10176","10177","10178","10179","10185","10199","10203","10211","10212","10213","10242","10249","10256","10257","10258","10259","10260","10261","10265","10268","10269","10270","10271","10272","10273","10274","10275","10276","10277","10278","10279","10280","10281","10282","10285","10286","10292","10301","10302","10303","10304","10305","10306","10307","10308","10309","10310","10311","10312","10313","10314","10451","10452","10453","10454","10455","10456","10457","10458","10459","10460","10461","10462","10463","10464","10465","10466","10467","10468","10469","10470","10471","10472","10473","10474","10475","10499","11101","11102","11103","11104","11106","11109","11120","11201","11202","11203","11204","11205","11206","11207","11208","11209","11210","11211","11212","11213","11214","11215","11216","11217","11218","11219","11220","11221","11222","11223","11224","11225","11226","11228","11229","11230","11231","11232","11233","11234","11235","11236","11237","11238","11239","11241","11242","11243","11245","11247","11249","11251","11252","11256","11351","11352","11354","11355","11356","11357","11358","11359","11360","11361","11362","11363","11364","11365","11366","11367","11368","11369","11370","11371","11372","11373","11374","11375","11377","11378","11379","11380","11381","11385","11386","11405","11411","11413","11414","11415","11416","11417","11418","11419","11420","11421","11422","11423","11424","11425","11426","11427","11428","11429","11430","11431","11432","11433","11434","11435","11436","11439","11451","11690","11691","11692","11693","11694","11695","11697"],"entryPoints":4,"samples":16,"detectedCompounds":[],"treatment":["NMT"],"potentialSources":"Yes","pfoaMax":null,"pfosMax":null,"hazardIndex":null,"centroidSource":"sab"}}