Clean Water Act discharge permit · NPDES PA0052485

MOUNTAIN SPRINGS MHP, Hamburg, PA: NPDES PA0052485 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
10Pollutants under a numeric limit
5Pollutants with an effluent exceedance

MOUNTAIN SPRINGS MHP, held by MOUNTAIN SPRINGS INVESTORS LLC, holds NPDES permit PA0052485, which discharges to Unt To Mill Creek. EPA’s file records it issued March 6, 2020 and expiring March 31, 2025. 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	MOUNTAIN SPRINGS MHP
Permittee as filed	MOUNTAIN SPRINGS INVESTORS LLC
NPDES ID	PA0052485
Permit status	Effective
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	March 6, 2020
Expiration date	March 31, 2025
Issuing agency	State Environmental Organization
Address	Hamburg, PA 19526
Receiving water	UNT To Mill Creek
Subwatershed	Hassler Run-Mill Creek (HUC 020402030601)

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
5With 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
Coliform, fecal general	4	23	19	May 31, 2026	99,999% over the limit
Nitrogen, ammonia total [as N]	2	5	3	July 31, 2022	223% over the limit
pH	2	5	1	August 31, 2017
Oxygen, dissolved [DO]	1	3	1	July 31, 2018	8% over the limit
BOD, carbonaceous [5 day, 20 C]	1	3	1	March 31, 2025	27% over the limit
Nitrogen, total [as N]	2	4	0
Phosphorus, total [as P]	2	4	0
Flow, in conduit or thru treatment plant	2	4	0
Chlorine, total residual	2	4	0
Solids, total suspended	1	2	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

3Single-event violations

Date	What EPA recorded	Agency
June 10, 2025	Permit Violations - Failure to Pay Fees	ST6
December 5, 2024	Permit Violations - Failure to Submit Timely Permit Renewal Application	ST6
June 2, 2023	Permit Violations - Failure to Pay Fees	ST6

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.

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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 PA0052485 there.

Nearby on the register

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

This public-records page covers NPDES permit PA0052485 for MOUNTAIN SPRINGS MHP in Hamburg, PA, held by MOUNTAIN SPRINGS INVESTORS LLC and discharging to UNT To Mill Creek within the Hassler Run-Mill Creek subwatershed (HUC 020402030601). The file lists 10 pollutants on file, 10 under a numeric limit, 10 with a violation of any kind, and 5 with an effluent exceedance.