Public water system record
Flandreau
Serves Flandreau, Moody County, SD · 2,372 people served
Federal records show 2 health-based violations and 1 monitoring/reporting issue for Flandreau in the last ten years. The most serious issue in this window was a resolved Stage 1 Disinfection Byproducts Rule violation.
System profile
- Health-based violations, last 10 years
- 2
- Resolved
- 2
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 1
Key facts
- Flandreau buys its water from Big Sioux Community Water System.
- Record on file since 1976, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 1,331 unknown out of 1,331 service lines.
Check whether Flandreau 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 |
|---|---|---|---|---|
|
Stage 1 Disinfection Byproducts Rule
Treatment technique failure
|
210 | Jul 27, 2022 | Resolved | No |
|
Stage 1 Disinfection Byproducts Rule
Treatment technique failure
|
210 | Jan 8, 2018 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2023 | Resolved |
Full record since 1976
EPA's records for Flandreau go back to 1976. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 6 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1970s | 0 | 2 |
| 1990s | 0 | 1 |
| 2010 to October 18, 2016 | 1 | 3 |
| October 19, 2016 to 2019 | 1 | 0 |
| 2020s | 1 | 1 |
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
Stage 1 Disinfection Byproducts Rule
2 incidentsThe 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
Flandreau buys its water from Big Sioux Community Water System. It lists no wells or intakes of its own. 1 other community water system buys water from Flandreau.
Buys water from
- Big Sioux Community Water System Egan, SD
Community systems that buy water from it
- Flandreau School Flandreau, SD
Annual water quality report
Flandreau 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