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Clean Water Act discharge permit · NPDES MN0021890

APPLETON WWTP, Appleton, MN: NPDES MN0021890 discharge permit, effluent exceedances, inspections, penalties

APPLETON WWTP, held by Appleton city of, holds NPDES permit MN0021890. EPA’s file records it issued February 1, 2023 and expiring January 31, 2028. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedAPPLETON WWTP
Permittee as filedAppleton city of
NPDES IDMN0021890
Permit statusEffective
Permit typeIndividual permit
Discharger classMinor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedFebruary 1, 2023
Expiration dateJanuary 31, 2028
Issuing agencySTA
AddressAppleton, MN 56208
Receiving water impaired303(D) Listed
SubwatershedPomme de Terre River (HUC 070200020604)

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

Effluent limits and exceedances

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 measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
BOD, carbonaceous [5 day, 20 C]62210November 30, 2021130% over the limit
Oxygen, dissolved [DO]184July 31, 202613% over the limit
Coliform, fecal MPN + membrane ftl 44.5 C142May 31, 2026190% over the limit
Solids, total suspended791December 31, 202058% over the limit
pH491July 31, 2020
Flow, in conduit or thru treatment plant360
Chlorine, total residual140
Precipitation, total defined period/in110
Nitrogen, ammonia total [as N]600
Phosphorus, total [as P]300
Nitrogen, total [as N]200
Nitrogen, Kjeldahl, total [as N]200
Nitrite + Nitrate total [as N]200
Specific conductance100
Bicarbonate ion- [as HCO3]100
Calcium, total [as Ca]100
Magnesium, total [as Mg]100
Sodium, total [as Na]100
Potassium, total [as K]100
Chloride [as Cl]100
Sulfate, total [as SO4]100
Hardness, Ca Mg Calculated [mg/L as CaCO3]100
Solids, total dissolved100
Mercury, dissolved [as Hg]100
Mercury, total [as Hg]100
BOD, carb-5 day, 20 deg C, percent removal100
Solids, suspended percent removal100

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES MN0021890.

Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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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How we handle your data → Privacy

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 MN0021890 there.

Nearby on the register

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