{"permit":"SD0022349","name":"Hermosa, Town of","state":"SD","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/SD0022349"},"about":[{"label":"What it is","text":"Sewage treatment plant"},{"label":"Where","text":"Hermosa, South Dakota","href":"https://www.openstreetmap.org/?mlat=43.834806&mlon=-103.181528#map=14/43.834806/-103.181528"},{"label":"Last 12 months","text":"No values over a limit. 12 required values not reported. 10 of 17 reports filed late"},{"label":"Permit","text":"In force until Jun 30, 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":[],"limits":[{"outfall":"001","parameter":"Temperature, water deg. fahrenheit","parameter_code":"00011","statistic":"daily maximum","qualifier":"<=","value":"90","unit":"deg F","report_only":false,"enforceable":true,"months":"all","limit_set":"Any discharge from discharge trough to Battle Creek"},{"outfall":"001","parameter":"Flow rate","parameter_code":"00056","statistic":"30-day average","qualifier":null,"value":null,"unit":"MGD","report_only":true,"enforceable":true,"months":"all","limit_set":"Any discharge from discharge trough to Battle Creek"},{"outfall":"001","parameter":"Flow rate","parameter_code":"00056","statistic":"daily maximum","qualifier":null,"value":null,"unit":"MGD","report_only":true,"enforceable":true,"months":"all","limit_set":"Any discharge from discharge trough to Battle Creek"},{"outfall":"001","parameter":"Oxygen, dissolved [DO]","parameter_code":"00300","statistic":"daily minimum","qualifier":">=","value":"5","unit":"mg/L","report_only":false,"enforceable":true,"months":["MAY","JUN","JUL","AUG","SEP"],"limit_set":"Any discharge from discharge trough to Battle Creek"},{"outfall":"001","parameter":"Oxygen, dissolved [DO]","parameter_code":"00300","statistic":"daily minimum","qualifier":">=","value":"4","unit":"mg/L","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR","APR","OCT","NOV","DEC"],"limit_set":"Any discharge from discharge trough to Battle Creek"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. 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