{"state":"MT","as_of":"2026-10-15","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-15","page":"/dmr/p/MT","listed":"individual NPDES permits with limits in EPA's file; a general permit's coverages are not listed"},"filter":{"industry":null,"sic":"16","matched_on":"EPA's primary SIC code and its description","over_limit":null,"parameter":null,"renewal":null},"of":151,"without_industry":0,"matched":4,"offset":0,"returned":4,"screen":{"of":4,"window":["2025-10-01","2026-09-30"],"with_record":4,"without_record":0,"over_limit":1,"missing_values":1,"parameters_over":[{"parameter":"Aluminum, dissolved [as Al]","permits":1},{"parameter":"Iron, total [as Fe]","permits":1},{"parameter":"Zinc, total recoverable","permits":1}],"renewal":{"permit_expired":2,"application_overdue":0,"application_due_within_18_months":0},"says":"Of the 4 permits in EPA's SIC 16 in MT, 1 went over a limit between 2025-10-01 and 2026-09-30 (Aluminum, dissolved [as Al]: 1; Iron, total [as Fe]: 1; Zinc, total recoverable: 1). 2 are past the expiry date EPA's file holds; 0 have a renewal application overdue or due within 18 months. EPA's file of 2026-10-15.","narrow":{"over_limit":"https://passage-data.com/api/v1/permits?state=MT&sic=16&over_limit=true","parameter":{"Aluminum, dissolved [as Al]":"https://passage-data.com/api/v1/permits?state=MT&sic=16&parameter=Aluminum%2C+dissolved+%5Bas+Al%5D","Iron, total [as Fe]":"https://passage-data.com/api/v1/permits?state=MT&sic=16&parameter=Iron%2C+total+%5Bas+Fe%5D","Zinc, total recoverable":"https://passage-data.com/api/v1/permits?state=MT&sic=16&parameter=Zinc%2C+total+recoverable"},"renewal_expired":"https://passage-data.com/api/v1/permits?state=MT&sic=16&renewal=expired"}},"permits":[{"permit":"MT0032174","name":"CH SP ACQUISITION LLC                                                           ","major":false,"sic":"1623","industry":"Water, Sewer, And Utility Lines","record":{"over":0,"over_by":[],"missing":0},"expires":"2030-10-31","renewal":null,"page":"https://passage-data.com/dmr/p/MT0032174","json":"https://passage-data.com/api/v1/permits/MT0032174"},{"permit":"MT0032247","name":"Montana DEQ                                                                     ","major":false,"sic":"1623","industry":"Water, Sewer, And Utility Lines","record":{"over":36,"over_by":[["Iron, total [as Fe]",16],["Aluminum, dissolved [as Al]",10],["Zinc, total recoverable",7]],"missing":2},"expires":"2030-11-20","renewal":null,"page":"https://passage-data.com/dmr/p/MT0032247","json":"https://passage-data.com/api/v1/permits/MT0032247"},{"permit":"MT0022390","name":"USCOE LIBBY DAM                                                                 ","major":false,"sic":"1623","industry":"Water, Sewer, And Utility Lines","record":{"over":0,"over_by":[],"missing":0},"expires":"2026-09-30","renewal":{"status":"permit_expired","application_due":"2026-04-03"},"page":"https://passage-data.com/dmr/p/MT0022390","json":"https://passage-data.com/api/v1/permits/MT0022390"},{"permit":"MT0032051","name":"YELLOWSTONE CLUB LLC                                                            ","major":false,"sic":"1623","industry":"Water, Sewer, And Utility Lines","record":{"over":0,"over_by":[],"missing":0},"expires":"2026-07-31","renewal":{"status":"permit_expired","application_due":"2026-02-01"},"page":"https://passage-data.com/dmr/p/MT0032051","json":"https://passage-data.com/api/v1/permits/MT0032051"}]}