Clean Water Act discharge permit · NPDES MTX000236

HELLER DEVELOPMENT - 46 DEGREES NORTH SUBDIVISION, Helena, MT: NPDES MTX000236 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
10Pollutants under a numeric limit
1Pollutants with an effluent exceedance

HELLER DEVELOPMENT - 46 DEGREES NORTH SUBDIVISION, held by HELLER DEVELOPMENT LLC, holds NPDES permit MTX000236, which discharges to Groundwater. EPA’s file records it issued June 9, 2016 and expiring July 31, 2021. 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.

Identity

Facility as filed	HELLER DEVELOPMENT - 46 DEGREES NORTH SUBDIVISION
Permittee as filed	HELLER DEVELOPMENT LLC
NPDES ID	MTX000236
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	State-issued individual permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	June 9, 2016
Expiration date	July 31, 2021
Address	Helena, MT 59602
Receiving water	GROUNDWATER
Subwatershed	Lower Tenmile Creek (HUC 100301011406)

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

Effluent limits and exceedances

10Pollutants on file
10Under a numeric limit
10With a violation of any kind
1With 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	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Nitrogen, total [as N]	4	171	23	July 31, 2025	500% over the limit
Nitrogen, Kjeldahl, total [as N]	6	82	0
Nitrite + Nitrate total [as N]	6	82	0
Flow rate	2	74	0
Nitrogen, ammonia total [as N]	2	74	0
Conductivity	4	8	0
Chloride [as Cl]	4	8	0
pH	2	4	0
E. coli, MTEC-MF	2	4	0
Water level at sample collection time	2	4	0

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 MTX000236.

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

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, MTX000236.

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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 MTX000236 there.

Nearby on the register

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

This public-records page covers NPDES permit MTX000236, held by HELLER DEVELOPMENT LLC for HELLER DEVELOPMENT - 46 DEGREES NORTH SUBDIVISION in Helena, MT, with groundwater as the receiving water and Lower Tenmile Creek (HUC 100301011406) as the subwatershed. The permit's listed figures are 10 pollutants on file, 10 under a numeric limit, 1 pollutant with an effluent exceedance, and a Minor Discharger class of 10, with a status of administratively continued.