{"permit":"PR0023795","name":"PRASA MAYAGUEZ WWTP","state":"PR","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/PR0023795"},"about":[{"label":"What it is","text":"Sewage treatment plant · rated a major discharger by EPA"},{"label":"Where","text":"Mayaguez, Puerto Rico","href":"https://www.openstreetmap.org/?mlat=18.249167&mlon=-67.154444#map=14/18.249167/-67.154444"},{"label":"Last 12 months","text":"No values over a limit. 1 required value not reported"},{"label":"Permit","text":"In force until Jul 31, 2030"}],"renewal_due":null,"renewal_check":null,"sector":null,"limits_from_version":null,"record":{"last_filed":"2026-08-31","over":0,"over_by":[],"window":["2025-10-01","2026-09-30"]},"over_limits":[],"upcoming":[{"parameter":"Chlorine, total residual","outfall":"001","limit":7.5,"unit":"ug/L","statistic":"daily maximum","statistic_code":"DD","begin":"2028-08-01","kind":"tighter","now":{"median":100,"n":11},"times_limit":13.3}],"limits":[{"outfall":"001","parameter":"Temperature, water deg. centigrade","parameter_code":"00010","statistic":"daily maximum","qualifier":"<=","value":"31.9","unit":"deg C","report_only":false,"enforceable":true,"months":"all","limit_set":"Composed of secondary treated wastewater."},{"outfall":"001","parameter":"Turbidity","parameter_code":"00070","statistic":"daily maximum","qualifier":"<=","value":"26","unit":"NTU","report_only":false,"enforceable":true,"months":"all","limit_set":"Composed of secondary treated wastewater."},{"outfall":"001","parameter":"Color [PT-CO units]","parameter_code":"00080","statistic":"daily maximum","qualifier":null,"value":null,"unit":"col unit (pc)","report_only":true,"enforceable":true,"months":"all","limit_set":"Composed of secondary treated wastewater."},{"outfall":"001","parameter":"Oxygen, dissolved [DO]","parameter_code":"00300","statistic":"instantaneous minimum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Composed of secondary treated wastewater."},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. 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