{"permit":"MS0025313","name":"HOLLY SPRINGS POTW, NUMBER 1","state":"MS","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/MS0025313"},"about":[{"label":"What it is","text":"Sewage treatment plant"},{"label":"Where","text":"Holly Springs, Mississippi","href":"https://www.openstreetmap.org/?mlat=34.760278&mlon=-89.478583#map=14/34.760278/-89.478583"},{"label":"Last 12 months","text":"No values over a limit. 39 required values not reported"},{"label":"Permit","text":"In force until Jul 31, 2029"}],"renewal_due":null,"renewal_check":null,"sector":null,"limits_from_version":null,"record":{"last_filed":null,"over":0,"over_by":[],"window":["2025-10-01","2026-09-30"]},"over_limits":[],"upcoming":[{"parameter":"Nitrogen, ammonia total [as N]","outfall":"001","limit":11.5,"unit":"lb/d","statistic":"maximum monthly average","statistic_code":"M2","begin":"2027-08-28","kind":"tighter","now":null},{"parameter":"Nitrogen, ammonia total [as N]","outfall":"001","limit":1.39,"unit":"mg/L","statistic":"maximum monthly average","statistic_code":"M2","begin":"2027-08-28","kind":"tighter","now":null},{"parameter":"Nitrogen, ammonia total [as N]","outfall":"001","limit":17.2,"unit":"lb/d","statistic":"maximum weekly average","statistic_code":"MS","begin":"2027-08-28","kind":"tighter","now":null},{"parameter":"Nitrogen, ammonia total [as N]","outfall":"001","limit":2.08,"unit":"mg/L","statistic":"maximum weekly average","statistic_code":"MS","begin":"2027-08-28","kind":"tighter","now":null}],"limits":[{"outfall":"001","parameter":"Oxygen, dissolved [DO]","parameter_code":"00300","statistic":"minimum","qualifier":">=","value":"6","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. 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