Clean Water Act discharge permit · NPDES MNG585104

PENNOCK WWTP, Pennock, MN: NPDES MNG585104 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
11Pollutants under a numeric limit
3Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

PENNOCK WWTP, held by Pennock city of, holds NPDES permit MNG585104. EPA’s file records it issued December 1, 2020 and expiring November 30, 2023. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	PENNOCK WWTP
Permittee as filed	Pennock city of
NPDES ID	MNG585104
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	December 1, 2020
Expiration date	November 30, 2023
Issuing agency	STA
Address	Pennock, MN 56279
Subwatershed	Saint Johns Lake (HUC 070200040704)
SIC	4952 – Sewerage Systems

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.

Effluent limits and exceedances

11Pollutants on file
11Under a numeric limit
8With a violation of any kind
3With 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
Solids, total suspended	5	11	10	October 31, 2025	59% over the limit
pH	3	6	5	April 30, 2026
BOD, carbonaceous [5 day, 20 C]	5	3	2	October 31, 2025	25% over the limit
Nitrogen, Kjeldahl, total [as N]	2	3	0
Nitrogen, total [as N]	2	2	0
Nitrite + Nitrate total [as N]	2	2	0
Phosphorus, total [as P]	4	1	0
Precipitation, total defined period/in	1	1	0
Flow, in conduit or thru treatment plant	9	0	0
Oxygen, dissolved [DO]	1	0	0
Coliform, fecal MPN + membrane ftl 44.5 C	1	0	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 MNG585104.

Inspections

EPA’s inspection file holds no inspection for NPDES MNG585104.

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 MNG585104.

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 MNG585104 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

This public-records page covers NPDES permit MNG585104 for the PENNOCK WWTP in Pennock, MN, held by Pennock city of and listed as administratively continued. The page lists 11 pollutants on file, 11 of them under a numeric limit, and 8 with a violation of any kind, with 3 pollutants having an effluent exceedance.