{"permit":"MI0002631","name":"Glenn Springs Holdings, Incorporated","state":"MI","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/MI0002631"},"about":[{"label":"What it is","text":"Special Trade Contractors (EPA's industry listing)"},{"label":"Where","text":"Montague, Michigan","href":"https://www.openstreetmap.org/?mlat=43.3877624&mlon=-86.376614#map=14/43.3877624/-86.376614"},{"label":"Last 12 months","text":"No values over a limit. 40 required values not reported"},{"label":"Permit","text":"Expired Oct 1, 2018; 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":"2018-04-04","price":"free while piloted","order_page":"https://passage-data.com/dmr/p/MI0002631#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":"MI","sic":"17","permits":11,"list":"https://passage-data.com/api/v1/permits?state=MI&sic=17","page":"https://passage-data.com/dmr/s/MI/17"},"limits_from_version":null,"record":{"last_filed":"2026-08-31","over":0,"over_by":[],"window":["2025-10-01","2026-09-30"]},"over_limits":[],"limits":[{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"daily minimum","qualifier":">=","value":"6.5","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"001B"},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"daily maximum","qualifier":"<=","value":"9","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"001B"},{"outfall":"001","parameter":"Carbon tetrachloride","parameter_code":"32102","statistic":"daily 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