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Clean Water Act discharge permit · NPDES NDG523183

SOUTHWEST WATER AUTHORITY, Dickinson, ND: NPDES NDG523183 discharge permit, effluent exceedances, inspections, penalties

SOUTHWEST WATER AUTHORITY, held by Southwest Water Authority, holds NPDES permit NDG523183, which discharges to Upper Heart. EPA’s file records it issued March 15, 2019 and expiring March 31, 2024. 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 SOUTHWEST WATER AUTHORITY: its NPDES ID, its permit type and status, its dates, its address in Dickinson, North Dakota, its receiving water, and 9 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES NDG523183.

Identity

Facility as filedSOUTHWEST WATER AUTHORITY
Permittee as filedSouthwest Water Authority
NPDES IDNDG523183
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedMarch 15, 2019
Expiration dateMarch 31, 2024
Issuing agencyNorth Dakota Department of Environmental Quality
AddressDickinson, ND 58601
Receiving waterUpper Heart
Receiving water impaired303(D) Listed
SubwatershedCity of Dickinson (HUC 101302020305)

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
Solids, total suspended600
Oil & Grease600
Aluminum, dissolved [as Al]600
Chlorine, total residual600
pH400
Flow, in conduit or thru treatment plant400
Flow, total200
Duration of discharge200
Oil and grease visual200

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES NDG523183.

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 NDG523183.

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 NDG523183 there.

Nearby on the register

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

What this page shows

This page covers Clean Water Act discharge permit NPDES NDG523183, held by SOUTHWEST WATER AUTHORITY in Dickinson, North Dakota, with status listed as administratively continued and a Minor Discharger class. The register lists 9 pollutants under a numeric limit and 0 pollutants with an effluent exceedance for this permit.