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Clean Water Act discharge permit · NPDES MNG790291

GREAT LAKES GAS TRANSMISSION - STATION 1, Saint Vincent, MN: NPDES MNG790291 discharge permit, effluent exceedances, inspections, penalties

GREAT LAKES GAS TRANSMISSION - STATION 1, held by Great Lakes Gas Transmission, holds NPDES permit MNG790291. EPA’s file records it issued August 1, 2024 and expiring April 30, 2027. 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 GREAT LAKES GAS TRANSMISSION - STATION 1: its NPDES ID, its permit type and status, its dates, its address in Saint Vincent, Minnesota, and 34 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MNG790291.

Identity

Facility as filedGREAT LAKES GAS TRANSMISSION - STATION 1
Permittee as filedGreat Lakes Gas Transmission
NPDES IDMNG790291
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedAugust 1, 2024
Expiration dateApril 30, 2027
Issuing agencySTA
AddressSaint Vincent, MN 56755
SubwatershedCounty Ditch No 20 (HUC 090203110701)

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
Flow, in conduit or thru treatment plant300
pH200
Temperature, water deg. fahrenheit100
Solids, total suspended100
Nitrogen, total [as N]100
Nitrogen, Kjeldahl, total [as N]100
Nitrite + Nitrate total [as N]100
Phosphorus, total [as P]100
Chloride [as Cl]100
Organics, gasoline range100
Toluene100
Benzene100
Acenaphthylene100
Acenaphthene100
Anthracene100
Benzo[b]fluoranthene100
Benzo[k]fluoranthene100
Benzo[a]pyrene100
Chrysene100
Ethylbenzene100
Fluoranthene100
Fluorene100
Indeno[1,2,3-cd]pyrene100
Phenanthrene100
Pyrene100
Benzo[ghi]perylene100
Benzo[a]anthracene100
Dibenz[a,h]anthracene100
Naphthalene100
Diesel range organics diesel, total, wtr100
Total Group I Polycyclic Aromatic Hydrocarbons100
Total Group II Polycyclic Aromatic Hydrocarbons100
BOD, carbonaceous [5 day, 20 C]100
Xylene [mix of m+o+p]100

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MNG790291.

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 MNG790291.

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

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, MNG790291.

Start the watch

How often?
  • One permit holder — $99/month
  • One watershed — $2,990/year
  • One state — $4,990/year
  • The whole register — $18,000/year

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 MNG790291 there.

Nearby on the register

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