Clean Water Act discharge permit · NPDES MTR300179

JTL GROUP DBA KNIFE RIVER CORP SINDELAR GRAVEL PIT, Billings, MT: NPDES MTR300179 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
6Pollutants under a numeric limit
0Pollutants with an effluent exceedance

JTL GROUP DBA KNIFE RIVER CORP SINDELAR GRAVEL PIT, held by JTL GROUP INC - MONTANA dba KNIFE RIVER CORP, holds NPDES permit MTR300179, which discharges to Miller/Mcgirl Canal & Yellowstone R.. EPA’s file records it issued February 25, 2003 and expiring November 16, 2007. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	JTL GROUP DBA KNIFE RIVER CORP SINDELAR GRAVEL PIT
Permittee as filed	JTL GROUP INC - MONTANA dba KNIFE RIVER CORP
NPDES ID	MTR300179
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Program	Industrial stormwater
Issued	February 25, 2003
Expiration date	November 16, 2007
Issuing agency	MONTANA DEQ
Address	Billings, MT 59107
Receiving water	MILLER/MCGIRL CANAL & YELLOWSTONE R.
Subwatershed	Yellowstone River-Sevenmile Creek (HUC 100700070403)
SIC	1442 – Construction Sand And Gravel

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.

Effluent limits and exceedances

6Pollutants on file
6Under a numeric limit
5With a violation of any kind
0With an effluent exceedance

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measure	Limits	Violations, any kind
Turbidity	3	12
Flow rate	3	4
pH	3	4
Solids, total suspended	3	4
Oil and grease, hexane extr method	3	4
Report due [yrmoda]	1	0

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MTR300179.

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES MTR300179.

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

Watch this permit

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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID MTR300179 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

This public-records page covers Clean Water Act NPDES permit MTR300179 for JTL GROUP DBA KNIFE RIVER CORP SINDELAR GRAVEL PIT in Billings, MT, which discharges to Miller/Mcgirl Canal & Yellowstone R. The permit, issued February 25, 2003 and expiring November 16, 2007, is listed as administratively continued with a Minor Discharger class, and the page shows 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance.