Public water system record
Wallace
Serves Wallace, Codington County, SD · 91 people served
Federal records show 1 health-based violation and 4 monitoring/reporting issues for Wallace 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
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 4
Key facts
- Wallace buys its water from Clark Rural Water System.
- Record on file since 1976, with 6 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 42 service lines.
Check whether Wallace 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 | Feb 1, 2017 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Chlorine
Monitoring and reporting
|
Oct 1, 2024 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2024 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2023 | Resolved |
Full record since 1976
EPA's records for Wallace go back to 1976. Before October 19, 2016 they list 6 health-based violations (6 resolved) and 43 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1970s | 0 | 9 |
| 1990s | 3 | 33 |
| 2010 to October 18, 2016 | 3 | 1 |
| October 19, 2016 to 2019 | 1 | 0 |
| 2020s | 0 | 4 |
Most recent health-based violation before October 19, 2016: Stage 1 Disinfection Byproducts Rule, began February 2014, Resolved.
Show all 6 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Stage 1 Disinfection Byproducts Rule
Treatment technique failure
|
Feb 1, 2014 | Resolved |
|
Stage 1 Disinfection Byproducts Rule
Treatment technique failure
|
Feb 1, 2013 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2010 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 1994 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 1991 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1991 | Resolved |
What the violations mean
Stage 1 Disinfection Byproducts Rule
1 incidentThe 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
Wallace buys its water from Clark Rural Water System. It lists no wells or intakes of its own.
Buys water from
- Clark Rural Water System Clark, SD
Annual water quality report
Wallace 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 Wallace 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