{"permit":"SC0021211","name":"GREAT FALLS TOWN OF","state":"SC","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/SC0021211"},"about":[{"label":"What it is","text":"Sewage treatment plant · rated a major discharger by EPA"},{"label":"Where","text":"Great Falls, South Carolina","href":"https://www.openstreetmap.org/?mlat=34.558&mlon=-80.8968#map=14/34.558/-80.8968"},{"label":"Last 12 months","text":"Over a limit 2 times, last in March 2026 (Solids, total suspended). 62 required values not reported. 4 of 17 reports filed late"},{"label":"Permit","text":"In force until Oct 31, 2029"}],"renewal_due":null,"renewal_check":null,"sector":null,"limits_from_version":null,"record":{"last_filed":"2026-08-31","over":2,"over_by":[["Solids, total suspended",2]],"window":["2025-10-01","2026-09-30"]},"over_limits":[{"parameter":"Solids, total suspended","times":2,"find_limits":{"parameter":"total suspended solids","place":"US-SC","medium":"water_discharge"},"get":"https://passage-data.com/api/v1/limits?parameter=total+suspended+solids&place=US-SC&medium=water_discharge"}],"upcoming":[{"parameter":"Copper, total [as Cu]","outfall":"001","limit":2.46,"unit":"mg/L","statistic":"daily maximum","statistic_code":"DD","begin":"2028-10-01","kind":"new","now":{"median":0,"n":3},"times_limit":0},{"parameter":"Copper, total [as Cu]","outfall":"001","limit":29,"unit":"lb/d","statistic":"daily maximum","statistic_code":"DD","begin":"2028-10-01","kind":"new","now":{"median":0,"n":3},"times_limit":0},{"parameter":"Copper, total [as Cu]","outfall":"001","limit":1.9,"unit":"mg/L","statistic":"monthly average","statistic_code":"MK","begin":"2028-10-01","kind":"new","now":{"median":0,"n":3},"times_limit":0},{"parameter":"Copper, total [as Cu]","outfall":"001","limit":22,"unit":"lb/d","statistic":"monthly average","statistic_code":"MK","begin":"2028-10-01","kind":"new","now":{"median":0,"n":3},"times_limit":0},{"parameter":"Polychlorinated biphenyls [PCBs]","outfall":"001","limit":0.00033,"unit":"lb/d","statistic":"daily maximum","statistic_code":"DD","begin":"2028-10-01","kind":"new","now":null},{"parameter":"Polychlorinated biphenyls [PCBs]","outfall":"001","limit":0.000028,"unit":"mg/L","statistic":"daily maximum","statistic_code":"DD","begin":"2028-10-01","kind":"new","now":null},{"parameter":"Polychlorinated biphenyls [PCBs]","outfall":"001","limit":0.00016,"unit":"lb/d","statistic":"monthly average","statistic_code":"MK","begin":"2028-10-01","kind":"new","now":null},{"parameter":"Polychlorinated biphenyls [PCBs]","outfall":"001","limit":0.000014,"unit":"mg/L","statistic":"monthly average","statistic_code":"MK","begin":"2028-10-01","kind":"new","now":null}],"limits":[{"outfall":"001","parameter":"Oxygen, dissolved [DO]","parameter_code":"00300","statistic":"minimum","qualifier":">=","value":"5","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"0011"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. 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