Clean Water Act discharge permit · NPDES SDG589205

FORT THOMPSON-EAST, Fort Thompson, SD: NPDES SDG589205 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
10Pollutants under a numeric limit
0Pollutants with an effluent exceedance

FORT THOMPSON-EAST, held by Fort Thompson - East, holds NPDES permit SDG589205, which discharges to Lake Francis Case/Missouri River. 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 filed	FORT THOMPSON-EAST
Permittee as filed	Fort Thompson - East
NPDES ID	SDG589205
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	April 5, 2016
Expiration date	December 31, 2020
Address	Fort Thompson, SD 57339
Receiving water	LAKE FRANCIS CASE/MISSOURI RIVER
Subwatershed	Lower Campbell Creek (HUC 101401010603)
NAICS	221320 – Sewage Treatment Facilities
SIC	4952 – 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

12Pollutants on file
10Under a numeric limit
12With a violation of any kind
0With an effluent exceedance

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 measure	Limits	Violations, any kind
BOD, 5-day, 20 deg. C	2	40
pH	2	40
Solids, total suspended	2	40
Flow, in conduit or thru treatment plant	0	32
Oil & Grease	1	20
Oil and grease visual	1	20
Duration of discharge	0	16
Temperature, water deg. centigrade	2	8
Nitrogen, ammonia total [as N]	2	8
Flow, total	2	8
Nitrogen, total [as N]	1	4
Phosphorus, total [as P]	1	4

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES SDG589205.

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

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES SDG589205.

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

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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 SDG589205 there.

Nearby on the register

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

This public-records page covers NPDES permit SDG589205 for FORT THOMPSON-EAST in Fort Thompson, SD, held by Fort Thompson - East, a minor discharger classed as a publicly owned treatment works that discharges to Lake Francis Case/Missouri River. The permit is administratively continued, with an issue date of April 5, 2016 and an expiration date of December 31, 2020, and the page lists 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance.