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Clean Water Act discharge permit · NPDES NDPG00018

SHEYENNE TOOLING & MFG CO, Cooperstown, ND: NPDES NDPG00018 discharge permit, effluent exceedances, inspections, penalties

SHEYENNE TOOLING & MFG CO, held by Sheyenne Tooling & Mfg Co, holds NPDES permit NDPG00018. EPA’s file records it issued June 27, 2023 and expiring June 30, 2028. 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.

Identity

Facility as filedSHEYENNE TOOLING & MFG CO
Permittee as filedSheyenne Tooling & Mfg Co
NPDES IDNDPG00018
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedJune 27, 2023
Expiration dateJune 30, 2028
Issuing agencyNorth Dakota Department of Environmental Quality
AddressCooperstown, ND 58425
SubwatershedCity of Cooperstown (HUC 090202030504)

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
Cyanide, total [as CN]420
Cadmium, total [as Cd]420
Chromium, total [as Cr]420
Copper, total [as Cu]420
Lead, total [as Pb]420
Nickel, total [as Ni]420
Silver, total [as Ag]420
Zinc, total [as Zn]420
Total toxic organics [TTO] [40 CFR433]210
pH400
Flow, process wastewater400
Flow, total200

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES NDPG00018.

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 NDPG00018.

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 NDPG00018 there.

Nearby on the register

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

What this page shows

This public-records page covers the NPDES discharge permit NDPG00018, held by SHEYENNE TOOLING & MFG CO in Cooperstown, ND, which is effective, classed as a minor discharger, and runs from June 27, 2023 through June 30, 2028. The page lists 12 pollutants on file, 9 of them under a numeric limit, and 0 with an effluent exceedance.