{"permit":"TN0020729","name":"City of Memphis","state":"TN","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/TN0020729"},"about":[{"label":"What it is","text":"Sewage treatment plant · rated a major discharger by EPA"},{"label":"Where","text":"Memphis, Tennessee","href":"https://www.openstreetmap.org/?mlat=35.070567&mlon=-90.156612#map=14/35.070567/-90.156612"},{"label":"Last 12 months","text":"Over a limit 73 times, last in July 2026 (Solids, total suspended; BOD, 5-day, 20 deg. C; Solids, settleable)"},{"label":"Permit","text":"Expired Dec 31, 2016; its limits still apply until a new permit is issued, and EPA still expects the reports"}],"renewal_due":null,"renewal_check":{"offered_because":"permit_expired","application_due":"2016-07-04","price":"free while piloted","order_page":"https://passage-data.com/dmr/p/TN0020729#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":"2026-09-30","over":73,"over_by":[["Solids, total suspended",26],["BOD, 5-day, 20 deg. C",24],["Solids, settleable",10]],"window":["2025-10-01","2026-09-30"]},"over_limits":[{"parameter":"Solids, total suspended","times":26,"find_limits":{"parameter":"total suspended solids","place":"US-TN","medium":"water_discharge"},"get":"https://passage-data.com/api/v1/limits?parameter=total+suspended+solids&place=US-TN&medium=water_discharge"},{"parameter":"BOD, 5-day, 20 deg. C","times":24,"find_limits":{"parameter":"bod","place":"US-TN","medium":"water_discharge"},"get":"https://passage-data.com/api/v1/limits?parameter=bod&place=US-TN&medium=water_discharge"}],"limits":[{"outfall":"001","parameter":"Oxygen, dissolved [DO]","parameter_code":"00300","statistic":"instantaneous minimum","qualifier":">=","value":"1","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"monthly average","qualifier":"<=","value":"42","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"weekly average","qualifier":"<=","value":"63","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"daily maximum","qualifier":"<=","value":"84","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"monthly average","qualifier":"<=","value":"31525","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"weekly average","qualifier":"<=","value":"47288","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"minimum","qualifier":">=","value":"6","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"maximum","qualifier":"<=","value":"9","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"monthly average","qualifier":"<=","value":"48","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"weekly average","qualifier":"<=","value":"72","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"daily maximum","qualifier":"<=","value":"96","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"monthly average","qualifier":"<=","value":"36029","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"weekly average","qualifier":"<=","value":"54043","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Solids, settleable","parameter_code":"00545","statistic":"daily maximum","qualifier":"<=","value":"1","unit":"mL/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Nitrogen, total [as N]","parameter_code":"00600","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Nitrogen, total [as N]","parameter_code":"00600","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Nitrogen, total [as N]","parameter_code":"00600","statistic":"monthly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Nitrogen, total [as N]","parameter_code":"00600","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Nitrogen, total [as N]","parameter_code":"00600","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Nitrogen, total [as N]","parameter_code":"00600","statistic":"monthly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Nitrogen, total [as N]","parameter_code":"00600","statistic":"monthly average","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Nitrogen, organic total [as N]","parameter_code":"00605","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Nitrogen, organic total [as N]","parameter_code":"00605","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Nitrogen, organic total [as N]","parameter_code":"00605","statistic":"monthly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"monthly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"monthly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"monthly average","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Dioxin","parameter_code":"03610","statistic":"monthly average","qualifier":"<=","value":"1","unit":"pg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Dioxin","parameter_code":"03610","statistic":"daily maximum","qualifier":"<=","value":"1","unit":"pg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Benzidine","parameter_code":"39120","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Benzidine","parameter_code":"39120","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Polychlorinated biphenyls [PCBs]","parameter_code":"39516","statistic":"monthly average","qualifier":"<=","value":".00000064","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Polychlorinated biphenyls [PCBs]","parameter_code":"39516","statistic":"daily maximum","qualifier":"<=","value":".00000064","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Hexachlorobenzene","parameter_code":"39700","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Hexachlorobenzene","parameter_code":"39700","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Flow, in conduit or thru treatment plant","parameter_code":"50050","statistic":"monthly average","qualifier":null,"value":null,"unit":"MGD","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Flow, in conduit or thru treatment plant","parameter_code":"50050","statistic":"daily maximum","qualifier":null,"value":null,"unit":"MGD","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Flow, in conduit or thru treatment plant","parameter_code":"50050","statistic":"monthly average","qualifier":null,"value":null,"unit":"MGD","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Flow, in conduit or thru treatment plant","parameter_code":"50050","statistic":"daily maximum","qualifier":null,"value":null,"unit":"MGD","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Chlorine, total residual","parameter_code":"50060","statistic":"instantaneous maximum","qualifier":"<=","value":"2","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Chlordane","parameter_code":"51032","statistic":"monthly average","qualifier":"<=","value":".0000081","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Chlordane","parameter_code":"51032","statistic":"daily maximum","qualifier":"<=","value":".0000081","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"E. coli","parameter_code":"51040","statistic":"monthly average","qualifier":null,"value":null,"unit":"CFU/100mL","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"E. coli","parameter_code":"51040","statistic":"daily maximum","qualifier":null,"value":null,"unit":"CFU/100mL","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"E. coli","parameter_code":"51040","statistic":"monthly geometric mean","qualifier":"<=","value":"126","unit":"CFU/100mL","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"E. coli","parameter_code":"51040","statistic":"daily maximum","qualifier":"<=","value":"487","unit":"CFU/100mL","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Sewer Backups","parameter_code":"51704","statistic":"monthly total","qualifier":null,"value":null,"unit":"occur/mo","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Mercury, total [as Hg]","parameter_code":"71900","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Mercury, total [as Hg]","parameter_code":"71900","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Overflows","parameter_code":"74062","statistic":"monthly total","qualifier":null,"value":null,"unit":"occur/mo","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Overflows","parameter_code":"74062","statistic":"monthly total","qualifier":null,"value":null,"unit":"occur/mo","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Organic pesticide chemicals [40 CFR455]","parameter_code":"78221","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Organic pesticide chemicals [40 CFR455]","parameter_code":"78221","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Methylmercury","parameter_code":"80361","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Methylmercury","parameter_code":"80361","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Bypass valve","parameter_code":"80998","statistic":"monthly total","qualifier":null,"value":null,"unit":"occur/mo","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"BOD, 5-day, percent removal","parameter_code":"81010","statistic":"daily minimum","qualifier":">=","value":"40","unit":"%","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"BOD, 5-day, percent removal","parameter_code":"81010","statistic":"monthly average minimum","qualifier":">=","value":"85","unit":"%","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Solids, suspended percent removal","parameter_code":"81011","statistic":"daily minimum","qualifier":">=","value":"40","unit":"%","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Solids, suspended percent removal","parameter_code":"81011","statistic":"monthly average minimum","qualifier":">=","value":"85","unit":"%","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"LC50 Static 48Hr Acute Ceriodaphnia dubia","parameter_code":"TAA3B","statistic":"value","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"LC50 Static 48Hr Acute Pimephales promelas","parameter_code":"TAA6C","statistic":"value","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"}],"next":[{"tool":"find_limits","says":"What do the rules say about what it went over on? find_limits gives the cited state and federal limits for it, each with its rule; `get` is the address to fetch, and `over_limits` holds one for each parameter.","arguments":{"parameter":"total suspended solids","place":"US-TN","medium":"water_discharge"},"needs":{},"get":"https://passage-data.com/api/v1/limits?parameter=total+suspended+solids&place=US-TN&medium=water_discharge","url":"https://passage-data.com/api/v1/limits?parameter=total+suspended+solids&place=US-TN&medium=water_discharge","page":"https://passage-data.com/limits/US-TN/total-suspended-solids"},{"tool":"check_dmr","says":"Before your user files this permit's DMR: check_dmr sets each value beside the permit's limit for that period, with EPA's violation rule's verdict.","arguments":{"permit":"TN0020729"},"needs":{"period_end":"The reporting period: its month (2026-09).","values":"The period's values as your user will file them: [{outfall, parameter, statistic, value, unit}, ...]."},"post":"/api/v1/dmr/check","url":"https://passage-data.com/api/v1/dmr/check","page":"https://passage-data.com/dmr/?permit=TN0020729"},{"tool":"fill_dmr","says":"Has your user the plant's raw daily results? fill_dmr computes the period's DMR values from them, each with the rows it came from.","arguments":{"permit":"TN0020729"},"needs":{"period_end":"The reporting period: its month (2026-09).","rows":"The plant's results: [{date, parameter, value, unit, point}, ...]; or `table`, the lab's or plant's export as text."},"post":"/api/v1/dmr/fill","url":"https://passage-data.com/api/v1/dmr/fill","page":"https://passage-data.com/dmr/?permit=TN0020729"}]}