{"permit":"AR0046523","name":"Maverick Tube Corporation","state":"AR","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/AR0046523"},"about":[{"label":"What it is","text":"Steel Pipe And Tubes (EPA's industry listing)"},{"label":"Where","text":"Blytheville, Arkansas","href":"https://www.openstreetmap.org/?mlat=35.934194&mlon=-89.758222#map=14/35.934194/-89.758222"},{"label":"Last 12 months","text":"No values over a limit. 5 of 19 reports filed late"},{"label":"Permit","text":"In force until Sep 30, 2030"}],"renewal_due":null,"renewal_check":null,"sector":{"state":"AR","sic":"33","permits":10,"list":"https://passage-data.com/api/v1/permits?state=AR&sic=33","page":"https://passage-data.com/dmr/s/AR/33"},"limits_from_version":null,"record":{"last_filed":"2026-08-31","over":0,"over_by":[],"window":["2025-10-01","2026-09-30"]},"over_limits":[],"upcoming":[{"parameter":"Chlorine, total 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fetch.","arguments":{"state":"AR","sic":"33"},"needs":{},"get":"https://passage-data.com/api/v1/permits?state=AR&sic=33","url":"https://passage-data.com/api/v1/permits?state=AR&sic=33","page":"https://passage-data.com/dmr/s/AR/33"},{"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":"AR0046523"},"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=AR0046523"},{"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":"AR0046523"},"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=AR0046523"}]}