{"permit":"MS0025054","name":"TUTWILER POTW","state":"MS","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/MS0025054"},"about":[{"label":"What it is","text":"Sewage treatment plant"},{"label":"Where","text":"Tutwiler, Mississippi","href":"https://www.openstreetmap.org/?mlat=34.022083&mlon=-90.431778#map=14/34.022083/-90.431778"},{"label":"Last 12 months","text":"Over a limit 15 times, last in June 2026 (E. coli; Solids, suspended percent removal; BOD, 5-day, 20 deg. C). 55 required values not reported. 3 of 3 reports filed late"},{"label":"Permit","text":"In force until Apr 30, 2029"}],"renewal_due":null,"renewal_check":null,"sector":null,"limits_from_version":null,"record":{"last_filed":"2026-06-30","over":15,"over_by":[["E. coli",4],["Solids, suspended percent removal",4],["BOD, 5-day, 20 deg. C",2]],"window":["2025-10-01","2026-09-30"]},"over_limits":[{"parameter":"BOD, 5-day, 20 deg. C","times":2,"find_limits":{"parameter":"bod","place":"US-MS","medium":"water_discharge"},"get":"https://passage-data.com/api/v1/limits?parameter=bod&place=US-MS&medium=water_discharge"}],"upcoming":[{"parameter":"Nitrogen, ammonia total [as N]","outfall":"001","limit":8.57,"unit":"lb/d","statistic":"maximum monthly average","statistic_code":"M2","begin":"2027-05-16","kind":"tighter","now":{"median":1.1,"n":3},"times_limit":0.128},{"parameter":"Nitrogen, ammonia total [as N]","outfall":"001","limit":1.37,"unit":"mg/L","statistic":"maximum monthly average","statistic_code":"M2","begin":"2027-05-16","kind":"tighter","now":{"median":0.33,"n":3},"times_limit":0.241},{"parameter":"Nitrogen, ammonia total [as N]","outfall":"001","limit":12.85,"unit":"lb/d","statistic":"maximum weekly average","statistic_code":"MS","begin":"2027-05-16","kind":"tighter","now":{"median":1.1,"n":3},"times_limit":0.0856},{"parameter":"Nitrogen, ammonia total [as N]","outfall":"001","limit":2.05,"unit":"mg/L","statistic":"maximum weekly average","statistic_code":"MS","begin":"2027-05-16","kind":"tighter","now":{"median":0.33,"n":3},"times_limit":0.161}],"limits":[{"outfall":"001","parameter":"Oxygen, dissolved [DO]","parameter_code":"00300","statistic":"minimum","qualifier":">=","value":"6","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Oxygen, dissolved [DO]","parameter_code":"00300","statistic":"minimum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Oxygen, dissolved [DO]","parameter_code":"00300","statistic":"maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"maximum monthly average","qualifier":"<=","value":"10","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"maximum weekly average","qualifier":"<=","value":"15","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"maximum monthly average","qualifier":"<=","value":"63","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"maximum weekly average","qualifier":"<=","value":"94","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"maximum monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"maximum weekly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"maximum monthly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"maximum weekly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"minimum","qualifier":">=","value":"6","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"maximum","qualifier":"<=","value":"9","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"maximum monthly average","qualifier":"<=","value":"30","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"maximum weekly average","qualifier":"<=","value":"45","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"maximum monthly average","qualifier":"<=","value":"188","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"maximum weekly average","qualifier":"<=","value":"281","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"maximum monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"maximum weekly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"maximum monthly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"maximum weekly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, total [as N]","parameter_code":"00600","statistic":"maximum monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, total [as N]","parameter_code":"00600","statistic":"maximum weekly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, total [as N]","parameter_code":"00600","statistic":"maximum monthly average","qualifier":"<=","value":"71.98","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, total [as N]","parameter_code":"00600","statistic":"maximum weekly average","qualifier":"<=","value":"107.97","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, total [as N]","parameter_code":"00600","statistic":"maximum monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, total [as N]","parameter_code":"00600","statistic":"maximum weekly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, total [as N]","parameter_code":"00600","statistic":"maximum monthly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, total [as N]","parameter_code":"00600","statistic":"maximum weekly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"maximum monthly average","qualifier":"<=","value":"2","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"maximum weekly average","qualifier":"<=","value":"3","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"maximum monthly average","qualifier":"<=","value":"13","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"maximum weekly average","qualifier":"<=","value":"19","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"maximum monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"maximum weekly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"maximum monthly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"maximum weekly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"maximum monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"maximum weekly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"maximum monthly average","qualifier":"<=","value":"32.55","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"maximum weekly average","qualifier":"<=","value":"48.825","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"maximum monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"maximum weekly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"maximum monthly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"maximum weekly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Flow, in conduit or thru treatment plant","parameter_code":"50050","statistic":"maximum monthly average","qualifier":"<=","value":".75","unit":"MGD","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Flow, in conduit or thru treatment plant","parameter_code":"50050","statistic":"maximum weekly average","qualifier":null,"value":null,"unit":"MGD","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Chlorine, total residual","parameter_code":"50060","statistic":"maximum monthly average","qualifier":"<=","value":".011","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Chlorine, total residual","parameter_code":"50060","statistic":"maximum weekly average","qualifier":"<=","value":".019","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"E. coli","parameter_code":"51040","statistic":"maximum monthly average","qualifier":"<=","value":"126","unit":"#/100mL","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"E. coli","parameter_code":"51040","statistic":"maximum weekly average","qualifier":"<=","value":"410","unit":"#/100mL","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"BOD, 5-day, percent removal","parameter_code":"81010","statistic":"minimum","qualifier":">=","value":"85","unit":"%","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Solids, suspended percent removal","parameter_code":"81011","statistic":"minimum","qualifier":">=","value":"85","unit":"%","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Sludge settleability 30 minute","parameter_code":"82219","statistic":"minimum","qualifier":null,"value":null,"unit":"mL/L","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"},{"outfall":"001","parameter":"Sludge settleability 30 minute","parameter_code":"82219","statistic":"maximum","qualifier":null,"value":null,"unit":"mL/L","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED DOMESTIC WASTEWATER"}],"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":"bod","place":"US-MS","medium":"water_discharge"},"needs":{},"get":"https://passage-data.com/api/v1/limits?parameter=bod&place=US-MS&medium=water_discharge","url":"https://passage-data.com/api/v1/limits?parameter=bod&place=US-MS&medium=water_discharge","page":"https://passage-data.com/limits/US-MS/bod"},{"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":"MS0025054"},"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=MS0025054"},{"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":"MS0025054"},"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=MS0025054"}]}