Clean Water Act discharge permit · NPDES MTR10I066

JOCKO CANAL CONVERSION PROJECT - PHASE 1 & 2, Arlee, MT: NPDES MTR10I066 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance

JOCKO CANAL CONVERSION PROJECT - PHASE 1 & 2, held by Prospect Construction, Inc., holds NPDES permit MTR10I066. EPA’s file records it issued August 20, 2025 and expiring February 16, 2027. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

What the register holds for JOCKO CANAL CONVERSION PROJECT - PHASE 1 & 2: its NPDES ID, its permit type and status, its dates, its address in Arlee, Montana. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTR10I066.

Identity

Facility as filed	JOCKO CANAL CONVERSION PROJECT - PHASE 1 & 2
Permittee as filed	Prospect Construction, Inc.
NPDES ID	MTR10I066
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Program	Construction stormwater
Issued	August 20, 2025
Expiration date	February 16, 2027
Issuing agency	U.S. EPA
Address	Arlee, MT 59821
Subwatershed	Spring Creek (HUC 170102120706)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

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

EPA’s limits and effluent violation files hold no pollutant row for NPDES MTR10I066.

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 MTR10I066.

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 MTR10I066 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

The JOCKO CANAL CONVERSION PROJECT - PHASE 1 & 2 is one of 6 storm water construction permits on EPA's NPDES register in Arlee, Montana, and it is one of the NPDES permits in the Spring Creek subwatershed (HUC 170102120706), which lists 1 such permit including this one. Among those 6 Arlee storm water construction permits, 0.0% have a violation on file, and this permit itself has no pollutants under a numeric limit and no effluent exceedances, both counted as 0.