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Public water system record

Wounded Knee District School

Serves Manderson-White Horse Creek, Oglala Lakota County, SD · 280 people served

Federal records show 2 health-based violations and 12 monitoring/reporting issues for Wounded Knee District School in the last ten years. The most serious issue in this window was a resolved Surface Water Treatment Rule violation.

  • 084690467
  • MANDERSON
  • SD
  • 280 served

System profile

Source water Purchased surface water
ZIP 57756
EPA system ID 084690467

Verify this system on EPA ECHO →

Health-based violations, last 10 years
2
Resolved
2
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
12

Key facts

  • Wounded Knee District School buys its water from Kyle Water System.
  • Record on file since 1979, with 9 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 15 unknown out of 20 service lines.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
Surface Water Treatment Rule
Treatment technique failure
 120 Nov 1, 2022 Resolved No
Groundwater Rule
Treatment technique failure
 140 May 16, 2015 Resolved No

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Haloacetic Acids (HAA5)
Monitoring and reporting
 Jan 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Jan 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Lead and Copper Rule
Monitoring and reporting
 Dec 30, 2024 Resolved
Lead and Copper Rule
Monitoring and reporting
 Oct 1, 2023 Resolved
Surface Water Treatment Rule
Monitoring and reporting
 Apr 1, 2023 Resolved
Surface Water Treatment Rule
Monitoring and reporting
 Apr 1, 2022 Resolved
Revised Total Coliform Rule
Monitoring violation
 Apr 1, 2022 Resolved
Revised Total Coliform Rule
Monitoring violation
 Dec 1, 2021 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
 Aug 1, 2021 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Aug 1, 2021 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
 Jan 1, 2020 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Jan 1, 2020 Resolved

Full record since 1979

EPA's records for Wounded Knee District School go back to 1979. Before October 19, 2016 they list 9 health-based violations (3 resolved, 6 archived by EPA without a recorded fix) and 86 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1970s 0 1
1980s 1 9
1990s 5 15
2000s 1 58
2010 to October 18, 2016 2 3
2020s 1 12

Most recent health-based violation before October 19, 2016: Groundwater Rule, began May 2015, Resolved.

Show all 9 health-based violations before October 19, 2016
Contaminant Start date Status
Groundwater Rule
Treatment technique failure
 May 16, 2015 Resolved
Total Coliform
Contaminant limit exceeded
 Apr 1, 2011 Resolved
Total Coliform
Contaminant limit exceeded
 Mar 1, 2005 Resolved
Total Coliform
Contaminant limit exceeded
 Jul 1, 1996 Archived
Total Coliform
Contaminant limit exceeded
 Nov 1, 1995 Archived
Total Coliform
Contaminant limit exceeded
 Oct 1, 1995 Archived
Total Coliform
Contaminant limit exceeded
 Sep 1, 1995 Archived
Total Coliform
Contaminant limit exceeded
 Sep 1, 1995 Archived
Fluoride
Contaminant limit exceeded
 Oct 1, 1980 Archived

What the violations mean

Surface Water Treatment Rule

1 incident

The system did not complete a treatment step or action that the Surface Water Treatment Rule requires (a treatment technique violation).

The utility had to notify customers about this violation.

Groundwater Rule

1 incident

The system did not complete a treatment step or action that the Groundwater Rule requires (a treatment technique violation).

The utility had to notify customers about this violation.

Where the water comes from

Wounded Knee District School buys its water from Kyle Water System. It lists no wells or intakes of its own.

Buys water from

Annual water quality report

Wounded Knee District School must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Wounded Knee District School for a copy.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by EPA Region 8.

Certified drinking water labs by state EPA guidance for private wells