Public water system record
Eagle Butte
Serves Eagle Butte, Dewey County and Ziebach County, SD · 4,000 people served
Federal records show 2 health-based violations and 4 monitoring/reporting issues for Eagle Butte in the last ten years. The most serious issue in this window was a resolved Revised Total Coliform Rule violation.
System profile
- Health-based violations, last 10 years
- 2
- Resolved
- 2
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 4
Key facts
- Eagle Butte buys its water from Tri-County Rural Water System.
- Record on file since 1992, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 931 service lines.
Check whether Eagle Butte serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Revised Total Coliform Rule
Treatment technique failure
|
110 | Nov 15, 2024 | Resolved | No |
|
Stage 1 Disinfection Byproducts Rule
Treatment technique failure
|
210 | Nov 1, 2017 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Aug 1, 2024 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Aug 1, 2024 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
Full record since 1992
EPA's records for Eagle Butte go back to 1992. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 17 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 7 |
| 2000s | 0 | 9 |
| 2010 to October 18, 2016 | 1 | 1 |
| October 19, 2016 to 2019 | 1 | 1 |
| 2020s | 1 | 3 |
Most recent health-based violation before October 19, 2016: Stage 1 Disinfection Byproducts Rule, began February 2010, Resolved.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Stage 1 Disinfection Byproducts Rule
Treatment technique failure
|
Feb 1, 2010 | Resolved |
What the violations mean
Revised Total Coliform Rule
1 incidentThe system did not meet a requirement of the Revised Total Coliform Rule
Coliform and E. coli rules protect against bacteria in the distribution system
Stage 1 Disinfection Byproducts Rule
1 incidentThe system did not meet a treatment requirement of the Stage 1 Disinfectants and Disinfection Byproducts Rule
Byproducts form when disinfectants react with natural material in water. Long-term exposure above federal limits may increase cancer risk
Where the water comes from
Eagle Butte buys its water from Tri-County Rural Water System. It lists no wells or intakes of its own.
Buys water from
- Tri-County Rural Water System Eagle Butte, SD
Annual water quality report
Eagle Butte 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.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
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 South Dakota.
Certified drinking water labs by state EPA guidance for private wells