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Clean Water Act discharge permit · NPDES MN0055981

LAKE CRYSTAL WWTP, Lake Crystal, MN: NPDES MN0055981 discharge permit, effluent exceedances, inspections, penalties

LAKE CRYSTAL WWTP, held by LAKE CRYSTAL, holds NPDES permit MN0055981, which discharges to Minn R Via Minneopa Cr. EPA’s file records it issued December 22, 2010 and expiring November 30, 2015. 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.

What the register holds for LAKE CRYSTAL WWTP: its NPDES ID, its permit type and status, its dates, its address in Lake Crystal, Minnesota, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MN0055981.

Identity

Facility as filedLAKE CRYSTAL WWTP
Permittee as filedLAKE CRYSTAL
NPDES IDMN0055981
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedDecember 22, 2010
Expiration dateNovember 30, 2015
AddressLake Crystal, MN 56055
Receiving waterMINN R VIA MINNEOPA CR
SubwatershedMinneopa Creek (HUC 070200070903)

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

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES MN0055981.

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 MN0055981.

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

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, MN0055981.

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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 MN0055981 there.

Nearby on the register

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

What this page shows

The LAKE CRYSTAL WWTP is one of 10 POTW permits on EPA's NPDES register in Blue Earth County, and it is the only NPDES permit in the Minneopa Creek subwatershed, the one included. Among those 10 Blue Earth County POTW permits, 80.0% had a violation on file, while this permit records 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance. Of those same 10 permits, 30.0% carry an earlier issue date than the December 22, 2010 issuance of this one.