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Clean Water Act discharge permit · NPDES SDG589402

WEST BRULE LAGOON SOUTH, Lower Brule, SD: NPDES SDG589402 discharge permit, effluent exceedances, inspections, penalties

WEST BRULE LAGOON SOUTH holds NPDES permit SDG589402. EPA’s file records it issued April 5, 2016 and expiring December 31, 2020. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedWEST BRULE LAGOON SOUTH
Permittee as filedWEST BRULE LAGOON SOUTH
NPDES IDSDG589402
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedApril 5, 2016
Expiration dateDecember 31, 2020
Issuing agencyU.S. EPA REGION 8
AddressLower Brule, SD 57548
SubwatershedTown of Lower Brule-Missouri River (HUC 101401010507)
NAICS221320 – Sewage Treatment Facilities
SIC4952 – Sewerage Systems

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same 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, 5-day, 20 deg. C2362June 30, 2023108% over the limit
E. coli042June 30, 20232,556% over the limit
Solids, total suspended2351June 30, 20103% over the limit
pH2171June 30, 2009
BOD, 5-day, percent removal021June 30, 202365% over the limit
Solids, suspended percent removal021June 30, 202379% over the limit
Oil & Grease1100
Flow, in conduit or thru treatment plant080
Temperature, water deg. centigrade270
Nitrogen, ammonia total [as N]270
Oil and grease visual160
Duration of discharge050
Nitrogen, total [as N]130
Phosphorus, total [as P]130
Flow, total220
Nitrite + Nitrate total [as N]020
Nitrogen, Kjeldahl Total020

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 SDG589402.

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 SDG589402 there.

Nearby on the register

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

What this page shows

This public-records page covers Clean Water Act discharge permit NPDES SDG589402 for WEST BRULE LAGOON SOUTH in Lower Brule, SD, as loaded from EPA's permit file on October 14, 2026. The permit is listed as administratively continued, with 10 as the discharger class, 6 pollutants under a numeric limit, and 6 pollutants with an effluent exceedance.