{"permit":"MO0115401","name":"Calvey Creek Sewer District","state":"MO","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/MO0115401"},"about":[{"label":"What it is","text":"Sewage treatment plant"},{"label":"Where","text":"Robertsville, Missouri","href":"https://www.openstreetmap.org/?mlat=38.4263637&mlon=-90.826922#map=14/38.4263637/-90.826922"},{"label":"Last 12 months","text":"Over a limit 12 times, last in May 2026 (Chlorine, total residual; Solids, suspended percent removal; E. coli). 2 of 25 reports filed late"},{"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":12,"over_by":[["Chlorine, total residual",4],["Solids, suspended percent removal",3],["E. coli",2]],"window":["2025-10-01","2026-09-30"]},"over_limits":[{"parameter":"Chlorine, total residual","times":4,"find_limits":{"parameter":"chlorine","place":"US-MO","medium":"surface_water"},"get":"https://passage-data.com/api/v1/limits?parameter=chlorine&place=US-MO&medium=surface_water"}],"limits":[{"outfall":"002","parameter":"Oxygen, dissolved [DO]","parameter_code":"00300","statistic":"daily minimum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":["APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"Monthly"},{"outfall":"002","parameter":"Oxygen, dissolved [DO]","parameter_code":"00300","statistic":"monthly average minimum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":["APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"Monthly"},{"outfall":"002","parameter":"BOD, 5-day, 20 deg. 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