{"permit":"WY0097001","name":"Black Hills Corporation","state":"WY","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/WY0097001"},"about":[{"label":"What it is","text":"Electric Services (EPA's industry listing)"},{"label":"Where","text":"Cheyenne, Wyoming","href":"https://www.openstreetmap.org/?mlat=41.1220863&mlon=-104.721097#map=14/41.1220863/-104.721097"},{"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":"WY","sic":"4911","permits":3,"list":"https://passage-data.com/api/v1/permits?state=WY&sic=4911","page":"https://passage-data.com/dmr/s/WY/4911"},"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":"pH","parameter_code":"00400","statistic":"daily 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statistic, value, unit}, ...]."},"post":"/api/v1/dmr/check","url":"https://passage-data.com/api/v1/dmr/check","page":"https://passage-data.com/dmr/?permit=WY0097001"},{"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":"WY0097001"},"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=WY0097001"}]}