{"permit":"AR0036536","name":"Greenbrier, City of - Greenbrier WWTP","state":"AR","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/AR0036536"},"about":[{"label":"What it is","text":"Sewage treatment plant"},{"label":"Where","text":"Greenbrier, Arkansas","href":"https://www.openstreetmap.org/?mlat=35.217611&mlon=-92.398861#map=14/35.217611/-92.398861"},{"label":"Last 12 months","text":"Over a limit 3 times, last in August 2026 (pH; BOD, carbonaceous [5 day, 20 C]). 16 of 22 reports filed late"},{"label":"Permit","text":"In force until Jun 30, 2029"}],"renewal_due":null,"renewal_check":null,"sector":null,"limits_from_version":null,"record":{"last_filed":"2026-08-31","over":3,"over_by":[["pH",2],["BOD, carbonaceous [5 day, 20 C]",1]],"window":["2025-10-01","2026-09-30"]},"over_limits":[{"parameter":"pH","times":2,"find_limits":{"parameter":"ph","place":"US-AR","medium":"surface_water"},"get":"https://passage-data.com/api/v1/limits?parameter=ph&place=US-AR&medium=surface_water"},{"parameter":"BOD, carbonaceous [5 day, 20 C]","times":1,"find_limits":{"parameter":"cbod5","place":"US-AR","medium":"water_discharge"},"get":"https://passage-data.com/api/v1/limits?parameter=cbod5&place=US-AR&medium=water_discharge"}],"upcoming":[{"parameter":"Chlorine, total residual","outfall":"001","limit":0.011,"unit":"mg/L","statistic":"instantaneous maximum","statistic_code":"IA","begin":"2027-07-01","kind":"new","now":null}],"limits":[{"outfall":"001","parameter":"Oxygen, dissolved [DO]","parameter_code":"00300","statistic":"instantaneous minimum","qualifier":">=","value":"3","unit":"mg/L","report_only":false,"enforceable":true,"months":["MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"001-Month Treated Municipal WW - 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