{"permit":"TN0004227","name":"Crucible MTN, LLC","state":"TN","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/TN0004227"},"about":[{"label":"What it is","text":"Lead And Zinc Ores (EPA's industry listing) · rated a major discharger by EPA"},{"label":"Where","text":"Elmwood, Tennessee","href":"https://www.openstreetmap.org/?mlat=36.220833&mlon=-85.9075#map=14/36.220833/-85.9075"},{"label":"Last 12 months","text":"Over a limit 3 times, last in December 2025 (Solids, total suspended; Zinc, total [as Zn])"},{"label":"Permit","text":"In force until Jul 31, 2028"}],"renewal_due":null,"renewal_check":{"offered_because":"application_due_within_18_months","application_due":"2028-02-02","price":"free while piloted","order_page":"https://passage-data.com/dmr/p/TN0004227#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":"TN","sic":"10","permits":10,"list":"https://passage-data.com/api/v1/permits?state=TN&sic=10","page":"https://passage-data.com/dmr/s/TN/10"},"limits_from_version":null,"record":{"last_filed":"2026-09-30","over":3,"over_by":[["Solids, total suspended",2],["Zinc, total [as Zn]",1]],"window":["2025-10-01","2026-09-30"]},"over_limits":[{"parameter":"Solids, total suspended","times":2,"find_limits":{"parameter":"total suspended solids","place":"US-TN","medium":"water_discharge"},"get":"https://passage-data.com/api/v1/limits?parameter=total+suspended+solids&place=US-TN&medium=water_discharge"},{"parameter":"Zinc, total [as 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water"}],"next":[{"tool":"list_permits","says":"Screening this industry? list_permits lists every permit of it in this state in one call, each with its page and its get_permit address; `get` is the address to fetch.","arguments":{"state":"TN","sic":"10"},"needs":{},"get":"https://passage-data.com/api/v1/permits?state=TN&sic=10","url":"https://passage-data.com/api/v1/permits?state=TN&sic=10","page":"https://passage-data.com/dmr/s/TN/10"},{"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":"total suspended solids","place":"US-TN","medium":"water_discharge"},"needs":{},"get":"https://passage-data.com/api/v1/limits?parameter=total+suspended+solids&place=US-TN&medium=water_discharge","url":"https://passage-data.com/api/v1/limits?parameter=total+suspended+solids&place=US-TN&medium=water_discharge","page":"https://passage-data.com/limits/US-TN/total-suspended-solids"},{"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":"TN0004227"},"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=TN0004227"},{"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":"TN0004227"},"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=TN0004227"}]}