{"permit":"SC0021733","name":"Grand Strand Water & Sewer Authority","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/SC0021733"},"about":[{"label":"What it is","text":"Sewage treatment plant · rated a major discharger by EPA"},{"label":"Where","text":"Conway, South Carolina","href":"https://www.openstreetmap.org/?mlat=33.8223&mlon=-79.0634#map=14/33.8223/-79.0634"},{"label":"Last 12 months","text":"Over a limit once, last in February 2026 (Oxygen demand, ultimate). 28 required values not reported. 8 of 15 reports filed late"},{"label":"Permit","text":"In force until Mar 31, 2028"}],"renewal_due":null,"renewal_check":{"offered_because":"application_due_within_18_months","application_due":"2027-10-03","price":"free while piloted","order_page":"https://passage-data.com/dmr/p/SC0021733#renewal","says":"Each limit a renewal could tighten or add, from the state's water-quality standards and the federal rules for this kind of discharge, each cited to its rule, beside EPA's 12-month record; a rule we do not hold is named, never guessed. A person orders it on the permit's page with their email; it is sent by email within 5 business days."},"sector":null,"limits_from_version":null,"record":{"last_filed":"2026-08-31","over":1,"over_by":[["Oxygen demand, ultimate",1]],"window":["2025-10-01","2026-09-30"]},"over_limits":[],"limits":[{"outfall":"001","parameter":"Oxygen demand, ultimate","parameter_code":"00181","statistic":"monthly average","qualifier":"<=","value":"303","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"0011"},{"outfall":"001","parameter":"Oxygen demand, ultimate","parameter_code":"00181","statistic":"weekly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"0011"},{"outfall":"001","parameter":"Oxygen, dissolved 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