{"permit":"MT0023388","name":"University of Montana","state":"MT","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/MT0023388"},"about":[{"label":"What it is","text":"Sewage treatment plant"},{"label":"Where","text":"Polson, Montana","href":"https://www.openstreetmap.org/?mlat=47.875833&mlon=-114.030556#map=14/47.875833/-114.030556"},{"label":"Last 12 months","text":"Over a limit 2 times, last in December 2025 (Phosphorus, total [as P]). 3 required values not reported. 2 of 10 reports filed late"},{"label":"Permit","text":"Expired Sep 30, 2023; 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":"2023-04-03","price":"free while piloted","order_page":"https://passage-data.com/dmr/p/MT0023388#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":"2026-06-30","over":2,"over_by":[["Phosphorus, total [as P]",2]],"window":["2025-10-01","2026-09-30"]},"over_limits":[{"parameter":"Phosphorus, total [as P]","times":2,"find_limits":{"parameter":"phosphorus","place":"US-MT","medium":"water_discharge"},"get":"https://passage-data.com/api/v1/limits?parameter=phosphorus&place=US-MT&medium=water_discharge"}],"limits":[{"outfall":"001","parameter":"Flow rate","parameter_code":"00058","statistic":"30-day average","qualifier":null,"value":null,"unit":"MGD","report_only":true,"enforceable":true,"months":"all","limit_set":"OUTFALL PIPE LEADING FROM DISCHARGE FROM FLATHEAD LAKE BIOLOGICAL STATION TO FLATHEAD LAKE"},{"outfall":"001","parameter":"Flow rate","parameter_code":"00058","statistic":"daily maximum","qualifier":null,"value":null,"unit":"MGD","report_only":true,"enforceable":true,"months":"all","limit_set":"OUTFALL PIPE LEADING FROM DISCHARGE FROM FLATHEAD LAKE BIOLOGICAL STATION TO FLATHEAD LAKE"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. 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address to fetch, and `over_limits` holds one for each parameter.","arguments":{"parameter":"phosphorus","place":"US-MT","medium":"water_discharge"},"needs":{},"get":"https://passage-data.com/api/v1/limits?parameter=phosphorus&place=US-MT&medium=water_discharge","url":"https://passage-data.com/api/v1/limits?parameter=phosphorus&place=US-MT&medium=water_discharge","page":"https://passage-data.com/limits/US-MT/phosphorus"},{"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":"MT0023388"},"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=MT0023388"},{"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":"MT0023388"},"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=MT0023388"}]}