Public water system record
Big Stone City
Serves Big Stone City, Grant County, SD · 412 people served
Federal records show no health-based violations and 3 monitoring/reporting issues for Big Stone City 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
- 3
Key facts
- Big Stone City buys its water from Grant-Roberts Rural Water System.
- Record on file since 1976, with 0 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 112 unknown out of 409 service lines.
Check whether Big Stone City 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 |
|---|---|---|
|
Revised Total Coliform Rule
Monitoring violation
|
Nov 1, 2021 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2021 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
Full record since 1976
EPA's records for Big Stone City go back to 1976. Before October 19, 2016 they list no health-based violations and 43 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1970s | 0 | 2 |
| 1990s | 0 | 37 |
| 2000s | 0 | 3 |
| 2010 to October 18, 2016 | 0 | 1 |
| October 19, 2016 to 2019 | 0 | 1 |
| 2020s | 0 | 2 |
Where the water comes from
Big Stone City buys its water from Grant-Roberts Rural Water System. It lists no wells or intakes of its own.
Buys water from
- Grant-Roberts Rural Water System Milbank, SD
Annual water quality report
Big Stone City 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 Big Stone City 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 South Dakota.
Certified drinking water labs by state EPA guidance for private wells