{"permit":"VA0027979","name":"Alleghany County","state":"VA","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/VA0027979"},"about":[{"label":"What it is","text":"Sewage treatment plant"},{"label":"Where","text":"Low Moor, Virginia","href":"https://www.openstreetmap.org/?mlat=37.7895&mlon=-79.88896#map=14/37.7895/-79.88896"},{"label":"Last 12 months","text":"No values over a limit. 2 of 24 reports filed late"},{"label":"Permit","text":"In force until Nov 30, 2030"}],"renewal_due":null,"renewal_check":null,"sector":null,"limits_from_version":null,"record":{"last_filed":"2026-08-31","over":0,"over_by":[],"window":["2025-10-01","2026-09-30"]},"over_limits":[],"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":null},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. 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fill_dmr computes the period's DMR values from them, each with the rows it came from.","arguments":{"permit":"VA0027979"},"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=VA0027979"}]}