{"permit":"VA0001333","name":"Koppers Inc","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/VA0001333"},"about":[{"label":"What it is","text":"Wood Preserving (EPA's industry listing)"},{"label":"Where","text":"Salem, Virginia","href":"https://www.openstreetmap.org/?mlat=37.27136&mlon=-80.13315#map=14/37.27136/-80.13315"},{"label":"Last 12 months","text":"No values over a limit"},{"label":"Permit","text":"In force until Oct 31, 2030"}],"renewal_due":null,"renewal_check":null,"sector":{"state":"VA","sic":"24","permits":12,"list":"https://passage-data.com/api/v1/permits?state=VA&sic=24","page":"https://passage-data.com/dmr/s/VA/24"},"limits_from_version":null,"record":{"last_filed":"2026-04-30","over":0,"over_by":[],"window":["2025-10-01","2026-09-30"]},"over_limits":[],"limits":[{"outfall":"001","parameter":"Oxygen demand, chem. 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