{"permit":"PA0008761","name":"ARMSTRONG WORLD IND INC","state":"PA","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/PA0008761"},"about":[{"label":"What it is","text":"Manufacturing Industries (EPA's industry listing)"},{"label":"Where","text":"Marietta, Pennsylvania","href":"https://www.openstreetmap.org/?mlat=40.0525&mlon=-76.574167#map=14/40.0525/-76.574167"},{"label":"Last 12 months","text":"Over a limit 2 times, last in April 2026 (BOD, carbonaceous [5 day, 20 C]). 24 required values not reported"},{"label":"Permit","text":"In force until Feb 28, 2031"}],"renewal_due":null,"renewal_check":null,"sector":{"state":"PA","sic":"39","permits":14,"list":"https://passage-data.com/api/v1/permits?state=PA&sic=39","page":"https://passage-data.com/dmr/s/PA/39"},"limits_from_version":null,"record":{"last_filed":"2026-06-30","over":2,"over_by":[["BOD, carbonaceous [5 day, 20 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parameter.","arguments":{"parameter":"cbod5","place":"US-PA","medium":"water_discharge"},"needs":{},"get":"https://passage-data.com/api/v1/limits?parameter=cbod5&place=US-PA&medium=water_discharge","url":"https://passage-data.com/api/v1/limits?parameter=cbod5&place=US-PA&medium=water_discharge","page":"https://passage-data.com/limits/US-PA/cbod5"},{"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":"PA0008761"},"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=PA0008761"},{"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":"PA0008761"},"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=PA0008761"}]}