{"permit":"AL0056731","name":"U.S. Army Corps of Engineers Tenn - Tom Waterway","state":"AL","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/AL0056731"},"about":[{"label":"What it is","text":"Federal facility · Sewerage Systems (EPA's industry listing)"},{"label":"Where","text":"Carrollton, Alabama","href":"https://www.openstreetmap.org/?mlat=33.2363&mlon=-88.3045#map=14/33.2363/-88.3045"},{"label":"Last 12 months","text":"Over a limit once, last in January 2026 (BOD, carb-5 day, 20 deg C, percent removal)"},{"label":"Permit","text":"In force until Jul 31, 2027"}],"renewal_due":{"date":"2027-02-01","when":"Feb 1, 2027 (in 89 days)","urgent":false},"renewal_check":{"offered_because":"application_due_within_18_months","application_due":"2027-02-01","price":"free while piloted","order_page":"https://passage-data.com/dmr/p/AL0056731#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":"AL","sic":"4952","permits":478,"list":"https://passage-data.com/api/v1/permits?state=AL&sic=4952"},"limits_from_version":null,"record":{"last_filed":"2026-08-31","over":1,"over_by":[["BOD, carb-5 day, 20 deg C, percent removal",1]],"window":["2025-10-01","2026-09-30"]},"over_limits":[],"limits":[{"outfall":"001","parameter":"Oxygen, dissolved [DO]","parameter_code":"00300","statistic":"daily minimum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"001-1"},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"daily minimum","qualifier":">=","value":"6","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"001-1"},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"daily 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fetch.","arguments":{"state":"AL","sic":"4952"},"needs":{},"get":"https://passage-data.com/api/v1/permits?state=AL&sic=4952","url":"https://passage-data.com/api/v1/permits?state=AL&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":"AL0056731"},"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=AL0056731"},{"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":"AL0056731"},"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=AL0056731"}]}