{"permit":"IA0025950","name":"CITY OF LAURENS","state":"IA","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/IA0025950"},"about":[{"label":"What it is","text":"Sewage treatment plant"},{"label":"Where","text":"Laurens, Iowa","href":"https://www.openstreetmap.org/?mlat=42.8356&mlon=-94.84508#map=14/42.8356/-94.84508"},{"label":"Last 12 months","text":"Over a limit once, last in May 2026 (pH)"},{"label":"Permit","text":"Expired Aug 31, 2026; 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":"2026-03-04","price":"free while piloted","order_page":"https://passage-data.com/dmr/p/IA0025950#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":"2026-08-31","over":1,"over_by":[["pH",1]],"window":["2025-10-01","2026-09-30"]},"over_limits":[{"parameter":"pH","times":1,"find_limits":{"parameter":"ph","place":"US-IA","medium":"surface_water"},"get":"https://passage-data.com/api/v1/limits?parameter=ph&place=US-IA&medium=surface_water"}],"limits":[{"outfall":"001","parameter":"Oxygen, dissolved [DO]","parameter_code":"00300","statistic":"daily minimum","qualifier":">=","value":"5","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"MONTHLY"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"30-day average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"MONTHLY"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. 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parameter.","arguments":{"parameter":"ph","place":"US-IA","medium":"surface_water"},"needs":{},"get":"https://passage-data.com/api/v1/limits?parameter=ph&place=US-IA&medium=surface_water","url":"https://passage-data.com/api/v1/limits?parameter=ph&place=US-IA&medium=surface_water","page":"https://passage-data.com/limits/US-IA/ph"},{"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":"IA0025950"},"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=IA0025950"},{"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":"IA0025950"},"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=IA0025950"}]}