{"permit":"LA0100480","name":"ST. MARY PARISH WATER & SEWER COMMISSION NO.4","state":"LA","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/LA0100480"},"about":[{"label":"What it is","text":"Sewage treatment plant"},{"label":"Where","text":"Charenton, Louisiana","href":"https://www.openstreetmap.org/?mlat=29.861111&mlon=-91.53#map=14/29.861111/-91.53"},{"label":"Last 12 months","text":"No values over a limit"},{"label":"Permit","text":"In force until Nov 30, 2026"}],"renewal_due":{"date":"2026-06-03","when":"Jun 3, 2026, overdue","urgent":true},"renewal_check":{"offered_because":"application_overdue","application_due":"2026-06-03","price":"free while piloted","order_page":"https://passage-data.com/dmr/p/LA0100480#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":0,"over_by":[],"window":["2025-10-01","2026-09-30"]},"over_limits":[],"limits":[{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"monthly average","qualifier":"<=","value":"10","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"monthly average","qualifier":"<=","value":"10","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"weekly average","qualifier":"<=","value":"15","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. 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...]."},"post":"/api/v1/dmr/check","url":"https://passage-data.com/api/v1/dmr/check","page":"https://passage-data.com/dmr/?permit=LA0100480"},{"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":"LA0100480"},"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=LA0100480"}]}