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Clean Water Act discharge permit · NPDES MTR111621

NAVIGATOR LOOP CONDOMINIUMS, Helena, MT: NPDES MTR111621 discharge permit, effluent exceedances, inspections, penalties

NAVIGATOR LOOP CONDOMINIUMS, held by Joe Nistler, holds NPDES permit MTR111621, which discharges to Prickly Pear Creek. 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 NAVIGATOR LOOP CONDOMINIUMS: its NPDES ID, its permit type and status, its its address in Helena, Montana, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTR111621.

Identity

Facility as filedNAVIGATOR LOOP CONDOMINIUMS
Permittee as filedJoe Nistler
NPDES IDMTR111621
Permit statusPending
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
AddressHelena, MT 59601
Receiving waterPRICKLY PEAR CREEK
SubwatershedLower Prickley Pear Gulch (HUC 100301011310)

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

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES MTR111621.

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES MTR111621.

Inspections

EPA’s inspection file holds no inspection for NPDES MTR111621.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES MTR111621.

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

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, MTR111621.

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  • One state — $4,990/year
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How we handle your data → Privacy

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 MTR111621 there.

NAVIGATOR LOOP CONDOMINIUMS, Helena, Montana: Coverage under a general permit MTR111621, held by Joe Nistler; Construction stormwater; Pending; discharges to PRICKLY PEAR CREEK.

Montana holds 2,848 Construction stormwater coverages of this permit type in EPA’s file. Joe Nistler holds 2 permits in Montana.

Other permits held by Joe Nistler

NAVIGATOR LOOP CONDOMINIUMS among its neighbors

EPA’s permit file holds 79 discharge permits in the Lower Prickley Pear Gulch subwatershed (HUC 100301011310), MTR111621 among them. Its county holds 238, 2 of them major permits; MTR111621 is a permit EPA has not classed major or minor.

Other permits in the Lower Prickley Pear Gulch subwatershed (HUC 100301011310)

  • AASF CH-47 ADD/ALT PHASE 2, Helena: MTR102301, minor permit, discharging to PRICKLY PEAR CREEK, permit term to December 31, 2007
  • AIR LIQUIDE INDUSTRIAL US LP, East Helena: MT0000426, minor permit, discharging to PRICKLY PEAR CREEK, permit term to January 31, 2009
  • AIR LIQUIDE LARGE INDUSTRIES, East Helena: MTR000006, minor permit, discharging to PRICKLY PEAR CREEK, permit term to September 30, 2006
  • AIRPORT BARROW, Helena: MTR104819, minor permit, discharging to RETENTION POND VIA DRAINS, permit term to December 31, 2017
  • AIRPORT BORROW 2021, Helena: MTR108745, minor permit, discharging to HELENA VALLEY CANAL, permit term to December 31, 2022
  • AMERICAN CHEMET CORPORATION, East Helena: MTR000475, minor permit, discharging to PRICKLY PEAR CREEK, permit term to January 31, 2023
  • ARTISAN VILLAGE, Helena: MTR111577, minor permit, discharging to HELENA VALLEY CANAL, permit term to December 31, 2027
  • ASARCO, East Helena: MTR108676, minor permit, discharging to PRICKLY PEAR CREEK, permit term to December 31, 2022
  • ASARCO - METG - EAST HELENA SMELTER, East Helena: MT0030147, minor permit, discharging to PRICKLY PEAR CREEK, permit term to September 30, 2001
  • ASARCO EAST HELENA SMELTER - METG, East Helena: MTR000072, minor permit, discharging to PRICKLY PEAR CREEK, permit term to September 30, 2011

Nearby on the register

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

What this page shows

13.1% of the 145 storm water construction permits in Lewis and Clark County have a violation on file. The Lower Prickley Pear Gulch subwatershed holds 79 NPDES permits, a count that includes the NAVIGATOR LOOP CONDOMINIUMS permit.