{"permit":"MI0002640","name":"AAR Mobility Systems","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/MI0002640"},"about":[{"label":"What it is","text":"Fabricated Metal Products (EPA's industry listing)"},{"label":"Where","text":"Cadillac, Michigan","href":"https://www.openstreetmap.org/?mlat=44.253&mlon=-85.4074#map=14/44.253/-85.4074"},{"label":"Last 12 months","text":"Over a limit once, last in October 2025 (Oil & Grease). 2 of 22 reports filed late"},{"label":"Permit","text":"In force until Oct 1, 2027"}],"renewal_due":null,"renewal_check":{"offered_because":"application_due_within_18_months","application_due":"2027-04-04","price":"free while piloted","order_page":"https://passage-data.com/dmr/p/MI0002640#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":{"state":"MI","sic":"34","permits":6,"list":"https://passage-data.com/api/v1/permits?state=MI&sic=34","page":"https://passage-data.com/dmr/s/MI/34"},"limits_from_version":null,"record":{"last_filed":"2026-08-31","over":1,"over_by":[["Oil & Grease",1]],"window":["2025-10-01","2026-09-30"]},"over_limits":[{"parameter":"Oil & Grease","times":1,"find_limits":{"parameter":"oil grease","place":"US-MI","medium":"water_discharge"},"get":"https://passage-data.com/api/v1/limits?parameter=oil+grease&place=US-MI&medium=water_discharge"}],"limits":[{"outfall":"001","parameter":"Temperature, water deg. fahrenheit","parameter_code":"00011","statistic":"daily maximum","qualifier":"=","value":"90","unit":"deg F","report_only":false,"enforceable":true,"months":"all","limit_set":"001A"},{"outfall":"001","parameter":"Thermal Discharge","parameter_code":"00015","statistic":"daily maximum","qualifier":null,"value":null,"unit":"MBTU/hr","report_only":true,"enforceable":true,"months":["MAY","JUN","JUL","AUG","SEP"],"limit_set":"001A"},{"outfall":"001","parameter":"Thermal Discharge","parameter_code":"00015","statistic":"daily maximum","qualifier":"<=","value":"4.3","unit":"MBTU/hr","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR","APR","OCT","NOV","DEC"],"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":"Oil & Grease","parameter_code":"00556","statistic":"daily maximum","qualifier":"=","value":"10","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":"1,1-Dichloroethane","parameter_code":"34496","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ug/L","report_only":true,"enforceable":true,"months":"all","limit_set":"001B"},{"outfall":"001","parameter":"1,1-Dichloroethane","parameter_code":"34496","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ug/L","report_only":true,"enforceable":true,"months":"all","limit_set":"001B"},{"outfall":"001","parameter":"1,1-Dichloroethylene","parameter_code":"34501","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ug/L","report_only":true,"enforceable":true,"months":"all","limit_set":"001B"},{"outfall":"001","parameter":"1,1-Dichloroethylene","parameter_code":"34501","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ug/L","report_only":true,"enforceable":true,"months":"all","limit_set":"001B"},{"outfall":"001","parameter":"1,1,1-Trichloroethane","parameter_code":"34506","statistic":"daily maximum","qualifier":"=","value":"15","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":"001B"},{"outfall":"001","parameter":"1,1,1-Trichloroethane","parameter_code":"34506","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ug/L","report_only":true,"enforceable":true,"months":"all","limit_set":"001B"},{"outfall":"001","parameter":"trans-1,2-Dichloroethylene","parameter_code":"34546","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ug/L","report_only":true,"enforceable":true,"months":"all","limit_set":"001B"},{"outfall":"001","parameter":"trans-1,2-Dichloroethylene","parameter_code":"34546","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ug/L","report_only":true,"enforceable":true,"months":"all","limit_set":"001B"},{"outfall":"001","parameter":"Vinyl chloride","parameter_code":"39175","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ug/L","report_only":true,"enforceable":true,"months":"all","limit_set":"001B"},{"outfall":"001","parameter":"Vinyl chloride","parameter_code":"39175","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ug/L","report_only":true,"enforceable":true,"months":"all","limit_set":"001B"},{"outfall":"001","parameter":"Equipment inspection - visual","parameter_code":"46478","statistic":"value","qualifier":null,"value":null,"unit":"N=0;Y=1","report_only":true,"enforceable":true,"months":"all","limit_set":"001B"},{"outfall":"001","parameter":"Flow, in conduit or thru treatment plant","parameter_code":"50050","statistic":"monthly maximum","qualifier":null,"value":null,"unit":"MGD","report_only":true,"enforceable":true,"months":"all","limit_set":"001B"},{"outfall":"001","parameter":"Flow, in conduit or thru treatment plant","parameter_code":"50050","statistic":"monthly maximum","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":"001B"},{"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":"Chlorine, total residual","parameter_code":"50060","statistic":"daily maximum","qualifier":"=","value":"38","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":"001A"},{"outfall":"001","parameter":"Trichloroethene","parameter_code":"78391","statistic":"daily maximum","qualifier":"<=","value":"20","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":"001B"},{"outfall":"001","parameter":"Trichloroethene","parameter_code":"78391","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ug/L","report_only":true,"enforceable":true,"months":"all","limit_set":"001B"},{"outfall":"001","parameter":"cis-1,2-Dichloroethene","parameter_code":"81686","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ug/L","report_only":true,"enforceable":true,"months":"all","limit_set":"001B"},{"outfall":"001","parameter":"cis-1,2-Dichloroethene","parameter_code":"81686","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ug/L","report_only":true,"enforceable":true,"months":"all","limit_set":"001B"},{"outfall":"001","parameter":"Outfall observation,visual, y/n response","parameter_code":"84130","statistic":"value","qualifier":null,"value":null,"unit":"N=0;Y=1","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":"34"},"needs":{},"get":"https://passage-data.com/api/v1/permits?state=MI&sic=34","url":"https://passage-data.com/api/v1/permits?state=MI&sic=34","page":"https://passage-data.com/dmr/s/MI/34"},{"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":"oil grease","place":"US-MI","medium":"water_discharge"},"needs":{},"get":"https://passage-data.com/api/v1/limits?parameter=oil+grease&place=US-MI&medium=water_discharge","url":"https://passage-data.com/api/v1/limits?parameter=oil+grease&place=US-MI&medium=water_discharge","page":"https://passage-data.com/limits/US-MI/oil-grease"},{"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":"MI0002640"},"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=MI0002640"},{"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":"MI0002640"},"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=MI0002640"}]}