Clean Water Act discharge permit · NPDES MN0022993

CANNON FALLS WWTP, Cannon Falls, MN: NPDES MN0022993 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
0Pollutants under a numeric limit
2Pollutants with an effluent exceedance

CANNON FALLS WWTP, held by CANNON FALLS, holds NPDES permit MN0022993, which discharges to Cannon R. EPA’s file records it issued July 25, 2014 and expiring June 30, 2019. 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	CANNON FALLS WWTP
Permittee as filed	CANNON FALLS
NPDES ID	MN0022993
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	July 25, 2014
Expiration date	June 30, 2019
Address	Cannon Falls, MN 55009
Receiving water	CANNON R
Receiving water impaired	303(D) Listed
Subwatershed	Town of Welch-Cannon River (HUC 070400020903)
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

9Pollutants on file
0Under a numeric limit
9With a violation of any kind
2With 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	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Chlorine, total residual	7	3	September 30, 1992	400% over the limit
Solids, total suspended	1	1	July 31, 2024	2% over the limit
Nickel, total [as Ni]	4	0
Zinc, total [as Zn]	4	0
Sulfate, total [as SO4]	2	0
Nitrogen, total [as N]	1	0
Nitrogen, Kjeldahl, total [as N]	1	0
Nitrite + Nitrate total [as N]	1	0
Hardness, Ca Mg Calculated [mg/L as CaCO3]	1	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 MN0022993.

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 MN0022993 there.

Nearby on the register

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

This public-records page covers the Clean Water Act discharge permit NPDES MN0022993 for the CANNON FALLS WWTP in Cannon Falls, MN, held by CANNON FALLS and discharging to the Cannon R. The permit is listed as administratively continued, was issued July 25, 2014, and expired June 30, 2019, with the status as of October 14, 2026. The page lists a discharger class of 0, 2 pollutants under a numeric limit, and 2 pollutants with an effluent exceedance.