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EPA enforcement actions against wastewater plants in South Dakota

6 formal actions at 6 of 130 plants · $5,375 in penalties · 34 EPA inspections

EPA's enforcement records list 6 formal civil enforcement cases naming publicly owned wastewater treatment plants in South Dakota, 1 of them since fiscal year 2020. The cases involve 6 of the state's 130 plants, with $5,375 in penalties assessed. The most common ground is npdes permit violations (4 cases). EPA has inspected 17 plants in the state, 34 inspections in total. Every plant links to its profile, and every case to its report on EPA's ECHO site.

Recent enforcement actions in South Dakota

The 6 most recent formal EPA enforcement cases naming wastewater treatment plants in South Dakota, by latest case status date. Source: EPA ICIS-FE&C civil enforcement cases and ICIS compliance inspections, via ECHO.
PlantDateTypeLaw sectionOutcomePenaltySource
Eagle Butte WWTF
Eagle Butte
May 2024
FY2024
Administrative order
NPDES Permit Violations
Final Order No Penalty
—ECHO 08-2024-0152
EPA's description: “Action requires compliance with NPDES permit requirements and the Clean Water Act.”
Spring Creek, Community Of
Spring Creek
and 3 other plants named in the case
Jul 2021
FY2017
Administrative order
NPDES Permit Violations
Final Order No Penalty
—ECHO 08-2017-0020
EPA's description: “On September 15 and 16, 2015 EPA Region 8 NPDES inspectors inspected 14 wastewater treatment facilities located in the Rosebud Reservation, South Dakota and managed by the Rosebud Sioux Tribe Water &…”
Rosebud Community
Rosebud
May 2019
FY2018
Administrative order
NPDES Permit Violations
Final Order No Penalty
—ECHO 08-2018-0080
EPA's description: “EPA has issued an Administrative Order on Consent to the Rosebud Sioux Water and Sewer for alleged violations of the no-discharge requirement of their permit.”
Flandreau, City Of
Flandreau
Mar 2017
FY2007
Administrative order
PCBS
Final Order With Penalty
$2,875ECHO 08-2007-0211
EPA's description: “This Complaint and Notice of Opportunity for Hearing is isssued to the City of Flandreau for improper disposal of PCBs; failure to keep annual records and logs; failure to properly store PCB items;…”
Eagle Butte WWTF
Eagle Butte
Jun 2011
FY2010
Administrative order
NPDES Permit Violations
Final Order With Penalty
$2,500ECHO 08-2010-0201
EPA's description: “This Administrative Complaint and Notice of Opportunity for Hearing is issued to the City of Eagle Butte for violations of their NPDES permit. The violations consist of failure to monitor for…”
Eagle Butte WWTF
Eagle Butte
Aug 2000
FY2000
Administrative order
Violation of Existing AO
Final Order Issued
—ECHO 08-2000-0221

Full case histories, milestones, violation types and EPA's complete case summaries for every plant are shown with a free Klarifi account. Create one

Largest penalties in South Dakota

The 2 largest penalties assessed in EPA enforcement cases naming wastewater treatment plants in South Dakota, with the value of the compliance actions each case required. Source: EPA ICIS-FE&C civil enforcement cases and ICIS compliance inspections, via ECHO.
#PlantDateTypeOutcomePenaltyCompliance actionsSource
1Flandreau, City Of
Flandreau
Mar 2017
FY2007
Administrative order
Final Order With Penalty
$2,875—ECHO 08-2007-0211
2Eagle Butte WWTF
Eagle Butte
Jun 2011
FY2010
Administrative order
Final Order With Penalty
$2,500—ECHO 08-2010-0201

Actions by fiscal year

Fiscal yearFormal actionsPenalties
FY20181—
FY20190—
FY20200—
FY20210—
FY20220—
FY20230—
FY20241—
FY20250—
FY20260—
FY20270—

EPA fiscal years run from 1 October to 30 September. The current year is partial.

EPA enforcement in South Dakota: questions

  1. How many EPA enforcement actions have been taken against wastewater plants in South Dakota?

    EPA's enforcement records list 6 formal civil enforcement cases naming publicly owned wastewater treatment plants in South Dakota, 1 of them since fiscal year 2020. They involve 6 of the state's 130 plants. Informal actions such as notices of violation are not counted here.

  2. Which South Dakota wastewater plant received the largest EPA penalty?

    Flandreau, City Of in Flandreau: $2,875 assessed in fiscal year 2007 (Flandreau, City of, Final Order With Penalty). Penalties are the amounts EPA records as assessed or agreed, not necessarily what was collected.

  3. What does an EPA administrative order mean for a wastewater plant?

    Most cases here are administrative orders under section 309 of the Clean Water Act: EPA finds permit violations, usually effluent limits or discharge without a permit, and orders the plant to return to compliance, often with a corrective action plan, a schedule and sometimes a penalty. Judicial cases go through the Department of Justice and typically end in a consent decree with a capital programme behind it. The latest case in South Dakota is from May 2024.

Enforcement data: EPA ICIS-FE&C civil enforcement cases and ICIS compliance inspections, via ECHO. Penalties are the amounts assessed or agreed in each case as EPA records them. Latest case status in this data: May 2024.

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Public data refreshed Nov 2, 2026