Public water system record
Standing Rock Rural Water System
Serves an area of Sioux County, ND that includes Cannon Ball, Selfridge, Solen and 2 more places · 6,839 people served
Federal records show 1 health-based violation and 3 monitoring/reporting issues for Standing Rock Rural Water System in the last ten years, including an unresolved Long Term 2 Enhanced Surface Water Treatment Rule violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 0
- Unresolved
- 1
- Any acute record
- No
- Monitoring issues, last 10 years
- 3
Key facts
- Standing Rock Rural Water System draws water from 1 surface water intake.
- Record on file since 1983, with 17 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 926 unknown out of 1,464 service lines.
Check whether Standing Rock Rural Water System 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 |
|---|---|---|---|---|
|
Long Term 2 Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Oct 19, 2024 | Active | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2024 | Active |
|
Long Term 2 Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Apr 1, 2023 | Resolved |
|
Long Term 2 Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Dec 1, 2017 | Resolved |
Full record since 1983
EPA's records for Standing Rock Rural Water System go back to 1983. Before October 19, 2016 they list 17 health-based violations (11 resolved, 6 archived by EPA without a recorded fix) and 31 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 9 |
| 1990s | 6 | 19 |
| 2000s | 11 | 1 |
| 2010 to October 18, 2016 | 0 | 2 |
| October 19, 2016 to 2019 | 0 | 1 |
| 2020s | 1 | 2 |
Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began October 2007, Resolved.
Show all 17 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Oct 1, 2007 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.091 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
Jul 1, 2007 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Apr 1, 2007 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Jan 1, 2007 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Oct 1, 2006 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Jul 1, 2006 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
|
Apr 1, 2006 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Apr 1, 2006 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
|
Jan 1, 2006 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
|
Oct 1, 2005 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
|
Oct 1, 2004 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jul 1, 1995 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jun 1, 1995 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
May 1, 1995 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Apr 1, 1995 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Mar 1, 1995 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Nov 1, 1993 | Archived |
What the violations mean
Long Term 2 Enhanced Surface Water Treatment Rule
1 incidentThe system failed required surface water treatment or filtration standards
Untreated or inadequately treated surface water can contain bacteria and viruses
Where the water comes from
Standing Rock Rural Water System draws water from 1 surface water intake. 3 other community water systems buy water from Standing Rock Rural Water System.
Community systems that buy water from it
- City of Selfridge Selfridge, ND
- City of Solen Solen, ND
- McLaughlin McLaughlin, SD
Annual water quality report
Standing Rock Rural Water System 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 EPA Region 8.
Certified drinking water labs by state EPA guidance for private wells