Public water system record
Mission Water System
Serves Mission, Todd County, SD · 1,500 people served
Federal records show no health-based violations and 10 monitoring/reporting issues for Mission Water System in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 10
Key facts
- Mission Water System buys its water from Sicangu Mni Wiconi Rural Water System.
- Record on file since 2009, with 2 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 472 unknown out of 472 service lines.
Check whether Mission 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.
None since October 2016.
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Surface Water Treatment Rule
Monitoring and reporting
|
Sep 1, 2025 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2025 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Mar 11, 2024 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Sep 1, 2022 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Sep 1, 2022 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Oct 11, 2021 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2021 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Dec 1, 2018 | Resolved |
Full record since 2009
EPA's records for Mission Water System go back to 2009. Before October 19, 2016 they list 2 health-based violations (2 resolved) and 2 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2000s | 1 | 0 |
| 2010 to October 18, 2016 | 1 | 2 |
| October 19, 2016 to 2019 | 0 | 1 |
| 2020s | 0 | 9 |
Most recent health-based violation before October 19, 2016: Total Coliform (acute), began July 2014, Resolved.
Show all 2 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform (acute)
Contaminant limit exceeded
|
Jul 1, 2014 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Apr 1, 2009 | Resolved |
Where the water comes from
Mission Water System buys its water from Sicangu Mni Wiconi Rural Water System. It lists no wells or intakes of its own.
Buys water from
- Sicangu Mni Wiconi Rural Water System Rosebud, SD
Annual water quality report
Mission 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