{"schemaVersion":2,"id":"us-NJ0233001","communeId":"NJ0233001","name":"Mahwah Water Department","slug":"mahwah-water-department-nj0233001","country":"us","region":"New Jersey","supplier":"MAHWAH WATER DEPARTMENT","networks":[{"code":"11012/TP011012","name":"Entry Point to Dist. System (Ford Wells TP)"},{"code":"16025/TP016025","name":"Entry Point to Dist. System (Well 16 TP)"},{"code":"17027/TP017027","name":"Entry Point to Dist. System (Well 17 TP)"},{"code":"19051/TP019051","name":"Entry Point to Dist. System (Well 19 TP)"},{"code":"30001/CC230001","name":"Representative Intertie (Veolia Water Consecutive Connection)"}],"latestSampleDate":"2026-01-21T00:00:00Z","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: ion exchange (IEX), no PFAS treatment (NMT). 5 entry points sampled, 14 sampling events between 2024-10-02 and 2026-01-21. The page's PFAS values come from the newest sample at Entry Point to Dist. System (Well 16 TP) (16025/TP016025), 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":0.0113,"valueText":"0.0113","unit":"µg/L","limit":0.004,"limitUnit":"µg/L","status":"exceeded","sampleDate":"2025-05-28T00:00:00Z","sampleId":"810-150448-1"},"pfas4DetectedCount":2,"lowerBound":true,"sampledAt":{"commune":"NJ0233001","name":"Entry Point to Dist. System (Well 16 TP)","network":"16025/TP016025"},"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":"810-178830-1","date":"2026-01-21","commune":"NJ0233001","communeName":"MAHWAH WATER DEPARTMENT","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["19051/TP019051"],"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":"84a1f9fc1b4b2d751fa7b54e91dd849520df5e1c2cfeeddf3b0c6bda876ec54a"},{"id":"810-159684-1","date":"2025-08-12","commune":"NJ0233001","communeName":"MAHWAH WATER DEPARTMENT","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["19051/TP019051"],"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":"997b0eb402082b5bf2fc430617fe9dccbf213f06dbbdfe2b6f02989b56366e79"},{"id":"810-154871-1","date":"2025-07-08","commune":"NJ0233001","communeName":"MAHWAH WATER DEPARTMENT","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["30001/CC230001"],"sum20":null,"pfas4":{"value":0.0125,"valueText":"0.0125","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":"7779d43b6f91dbccae5797b13d9b3e029ade80cfb8afc3438783abd9c61aaa59"},{"id":"810-150448-1","date":"2025-05-28","commune":"NJ0233001","communeName":"MAHWAH WATER 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DEPARTMENT","sourceUrl":"https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule","networks":["30001/CC230001"],"sum20":null,"pfas4":{"value":0.0118,"valueText":"0.0118","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":"54c9b887b3487fb61ec813b72ad0f37496e02512f6bf1a9f36e0f289da4471e0"},{"id":"810-144342-1","date":"2025-04-09","commune":"NJ0233001","communeName":"MAHWAH WATER 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