Public water system record
Big Sioux Community Water System
Serves an area of Moody County, Lake County and 1 more county, SD that includes Egan, Lake Madison, Colman and 5 more places · 5,800 people served
Federal records show no health-based violations and 1 monitoring/reporting issue for Big Sioux Community 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
- 1
Key facts
- Big Sioux Community Water System draws water from 12 wells.
- Record on file since 1976, with 0 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 2,339 service lines.
Check whether Big Sioux Community 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 |
|---|---|---|
|
Nitrate
Monitoring and reporting
|
Jul 1, 2021 | Resolved |
Full record since 1976
EPA's records for Big Sioux Community Water System go back to 1976. Before October 19, 2016 they list no health-based violations and 2 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1970s | 0 | 2 |
| 2020s | 0 | 1 |
Where the water comes from
Big Sioux Community Water System draws water from 12 wells. It also buys water from Minnehaha Community Water Corp. 6 other community water systems buy water from Big Sioux Community Water System.
Buys water from
- Minnehaha Community Water Corp Dell Rapids, SD
Annual water quality report
Big Sioux Community 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 South Dakota.
Certified drinking water labs by state EPA guidance for private wells