{"permit":"MI0058794","name":"City of Au Gres WWTP","state":"MI","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/MI0058794"},"about":[{"label":"What it is","text":"Sewerage Systems (EPA's industry listing)"},{"label":"Where","text":"Au Gres, Michigan","href":"https://www.openstreetmap.org/?mlat=44.036884&mlon=-83.696568#map=14/44.036884/-83.696568"},{"label":"Last 12 months","text":"No values over a limit"},{"label":"Permit","text":"In force until Oct 1, 2029"}],"renewal_due":null,"renewal_check":null,"sector":{"state":"MI","sic":"4952","permits":265,"list":"https://passage-data.com/api/v1/permits?state=MI&sic=4952"},"limits_from_version":null,"record":{"last_filed":"2026-09-30","over":0,"over_by":[],"window":["2025-10-01","2026-09-30"]},"over_limits":[],"upcoming":[{"parameter":"Nitrogen, ammonia total [as N]","outfall":"001","limit":11,"unit":"mg/L","statistic":"monthly average","statistic_code":"MK","begin":"2029-06-01","kind":"tighter","months":["JUN","JUL","AUG"],"now":null},{"parameter":"Nitrogen, ammonia total [as N]","outfall":"001","limit":37,"unit":"lb/d","statistic":"monthly average","statistic_code":"MK","begin":"2029-06-01","kind":"tighter","months":["JUN","JUL","AUG"],"now":null},{"parameter":"Perfluorooctanesulfonate","outfall":"001","limit":0.00004,"unit":"lb/d","statistic":"monthly average","statistic_code":"MK","begin":"2029-09-01","kind":"new","now":null},{"parameter":"Perfluorooctanesulfonate","outfall":"001","limit":12,"unit":"ng/L","statistic":"monthly average","statistic_code":"MK","begin":"2029-09-01","kind":"new","now":null}],"limits":[{"outfall":"001","parameter":"Oxygen, dissolved [DO]","parameter_code":"00300","statistic":"daily minimum","qualifier":">=","value":"4","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"001A"},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"daily minimum","qualifier":">=","value":"6.5","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"001A"},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"daily maximum","qualifier":"<=","value":"9","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"001A"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"monthly average","qualifier":"<=","value":"30","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"001A"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"7-day average","qualifier":"<=","value":"45","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"001A"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"monthly average","qualifier":"<=","value":"100","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"001A"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"7-day average","qualifier":"<=","value":"150","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"001A"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"monthly average","qualifier":"<=","value":"19","unit":"mg/L","report_only":false,"enforceable":true,"months":["JUN","JUL","AUG"],"limit_set":"001A"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":["JUN","JUL","AUG"],"limit_set":"001A"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":["JAN","FEB","MAR","APR","MAY","SEP","OCT","NOV","DEC"],"limit_set":"001A"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"monthly average","qualifier":"<=","value":"63","unit":"lb/d","report_only":false,"enforceable":true,"months":["JUN","JUL","AUG"],"limit_set":"001A"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"daily maximum","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":["JUN","JUL","AUG"],"limit_set":"001A"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"monthly average","qualifier":"<=","value":"1","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"001A"},{"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":"001A"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"monthly average","qualifier":"<=","value":"3.3","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"001A"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"daily maximum","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"001A"},{"outfall":"001","parameter":"Chloride [as Cl]","parameter_code":"00940","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"001A"},{"outfall":"001","parameter":"Sulfate, total [as SO4]","parameter_code":"00945","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"001A"},{"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":"001A"},{"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":"001A"},{"outfall":"001","parameter":"Perfluorooctanesulfonate","parameter_code":"51526","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ng/L","report_only":true,"enforceable":true,"months":"all","limit_set":"001A"},{"outfall":"001","parameter":"Coliform, fecal general","parameter_code":"74055","statistic":"monthly geometric mean","qualifier":"<=","value":"200","unit":"#/100mL","report_only":false,"enforceable":true,"months":"all","limit_set":"001A"},{"outfall":"001","parameter":"Coliform, fecal general","parameter_code":"74055","statistic":"7-day geometric mean","qualifier":"<=","value":"400","unit":"#/100mL","report_only":false,"enforceable":true,"months":"all","limit_set":"001A"},{"outfall":"001","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"monthly average","qualifier":"<=","value":"25","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"001A"},{"outfall":"001","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"7-day average","qualifier":"<=","value":"40","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"001A"},{"outfall":"001","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"monthly average","qualifier":"<=","value":"83","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"001A"},{"outfall":"001","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"7-day average","qualifier":"<=","value":"130","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"001A"},{"outfall":"001","parameter":"BOD, carb-5 day, 20 deg C, percent removal","parameter_code":"80091","statistic":"minimum","qualifier":">=","value":"85","unit":"%","report_only":false,"enforceable":true,"months":"all","limit_set":"001A"},{"outfall":"001","parameter":"BOD, carb-5 day, 20 deg C, percent removal","parameter_code":"80091","statistic":"daily minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"001A"},{"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":"001A"},{"outfall":"001","parameter":"Solids, suspended percent removal","parameter_code":"81011","statistic":"daily minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"001A"}],"next":[{"tool":"list_permits","says":"Screening this industry? list_permits lists every permit of it in this state in one call, each with its page and its get_permit address; `get` is the address to fetch.","arguments":{"state":"MI","sic":"4952"},"needs":{},"get":"https://passage-data.com/api/v1/permits?state=MI&sic=4952","url":"https://passage-data.com/api/v1/permits?state=MI&sic=4952"},{"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":"MI0058794"},"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=MI0058794"},{"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":"MI0058794"},"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=MI0058794"}]}