Clean Water Act discharge permit · NPDES MTX000168

SILVER CREEK COMMERCIAL SUBDIV, Helena, MT: NPDES MTX000168 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
14Pollutants under a numeric limit
1Pollutants with an effluent exceedance

SILVER CREEK COMMERCIAL SUBDIV, held by BRIDGE CREEK ESTATES LLC, holds NPDES permit MTX000168, which discharges to Class I Ground Water. EPA’s file records it issued March 9, 2007 and expiring April 30, 2012. 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	SILVER CREEK COMMERCIAL SUBDIV
Permittee as filed	BRIDGE CREEK ESTATES LLC
NPDES ID	MTX000168
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	March 9, 2007
Expiration date	April 30, 2012
Issuing agency	MONTANA DEQ
Address	Helena, MT 59602
Receiving water	CLASS I GROUND WATER
Receiving water impaired	303(D) Listed
Subwatershed	Lower Silver Creek (HUC 100301011503)

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

Effluent limits and exceedances

15Pollutants on file
14Under a numeric limit
15With 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	35	1	December 31, 2007	27% over the limit
Nitrogen, Kjeldahl, total [as N]	3	21	0
Nitrite + Nitrate total [as N]	3	21	0
Flow rate	2	14	0
Phosphorus, total [as P]	2	14	0
E. coli, colony forming units [CFU]	0	10	0
pH	2	9	0
Solids, total suspended	2	9	0
Specific conductance	1	9	0
Chloride [as Cl]	1	9	0
Water level at sample collection time	1	9	0
BOD, 5-day, 20 deg. C	2	8	0
Oil and grease, hexane extr method	2	8	0
E. coli, MTEC-MF	1	6	0
Nitrogen, ammonia total [as N]	1	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 MTX000168.

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 MTX000168 there.

Nearby on the register

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

This public-records page covers Clean Water Act discharge permit NPDES MTX000168, held by BRIDGE CREEK ESTATES LLC for SILVER CREEK COMMERCIAL SUBDIV in Helena, MT, with a status of administratively continued and a discharger class of minor. The page lists 14 pollutants under a numeric limit, 1 pollutant with an effluent exceedance, and 15 pollutants in total under effluent limits and exceedances, with the permit issued March 9, 2007 and expiring April 30, 2012.