{"permit":"CO0047554","name":"Union Pacific Railroad","state":"CO","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/CO0047554"},"about":[{"label":"What it is","text":"Railroads, Line-Haul Operating (EPA's industry listing)"},{"label":"Where","text":"Gilpin County, Colorado","href":"https://www.openstreetmap.org/?mlat=39.886111&mlon=-105.766667#map=14/39.886111/-105.766667"},{"label":"Last 12 months","text":"Over a limit 13 times, last in August 2026 (Turbidity; pH). 2 of 28 reports filed late"},{"label":"Permit","text":"Expired Sep 30, 2023; its limits still apply until a new permit is issued, and EPA still expects the reports"}],"renewal_due":null,"renewal_check":{"offered_because":"permit_expired","application_due":"2023-04-03","price":"free while piloted","order_page":"https://passage-data.com/dmr/p/CO0047554#renewal","says":"Each limit a renewal could tighten or add, from the state's water-quality standards and the federal rules for this kind of discharge, each cited to its rule, beside EPA's 12-month record; a rule we do not hold is named, never guessed. A person orders it on the permit's page with their email; it is sent by email within 5 business days."},"sector":{"state":"CO","sic":"40","permits":2,"list":"https://passage-data.com/api/v1/permits?state=CO&sic=40"},"limits_from_version":null,"record":{"last_filed":"2026-08-31","over":13,"over_by":[["Turbidity",11],["pH",2]],"window":["2025-10-01","2026-09-30"]},"over_limits":[{"parameter":"pH","times":2,"find_limits":{"parameter":"ph","place":"US-CO","medium":"surface_water"},"get":"https://passage-data.com/api/v1/limits?parameter=ph&place=US-CO&medium=surface_water"}],"limits":[{"outfall":"001","parameter":"Temperature, water deg. centigrade","parameter_code":"00010","statistic":"maximum weekly average","qualifier":null,"value":null,"unit":"deg C","report_only":true,"enforceable":true,"months":"all","limit_set":"Discharge to Fraser River"},{"outfall":"001","parameter":"Temperature, water deg. centigrade","parameter_code":"00010","statistic":"daily 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in this state in one call, each with its page and its get_permit address; `get` is the address to fetch.","arguments":{"state":"CO","sic":"40"},"needs":{},"get":"https://passage-data.com/api/v1/permits?state=CO&sic=40","url":"https://passage-data.com/api/v1/permits?state=CO&sic=40"},{"tool":"find_limits","says":"What do the rules say about what it went over on? find_limits gives the cited state and federal limits for it, each with its rule; `get` is the address to fetch, and `over_limits` holds one for each parameter.","arguments":{"parameter":"ph","place":"US-CO","medium":"surface_water"},"needs":{},"get":"https://passage-data.com/api/v1/limits?parameter=ph&place=US-CO&medium=surface_water","url":"https://passage-data.com/api/v1/limits?parameter=ph&place=US-CO&medium=surface_water","page":"https://passage-data.com/limits/US-CO/ph"},{"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 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