Public water system record
Jefferson
Serves Jefferson, Union County, SD · 475 people served
Federal records show no health-based violations and no monitoring or reporting issues for Jefferson 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
- 0
Key facts
- Jefferson draws water from 2 wells.
- Record on file since 1976, with 5 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 150 unknown out of 241 service lines.
Check whether Jefferson 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, and no monitoring or reporting violations either.
Full record since 1976
EPA's records for Jefferson go back to 1976. Before October 19, 2016 they list 5 health-based violations (5 resolved) and 32 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1970s | 0 | 2 |
| 1990s | 1 | 30 |
| 2000s | 2 | 0 |
| 2010 to October 18, 2016 | 2 | 0 |
Most recent health-based violation before October 19, 2016: Stage 1 Disinfection Byproducts Rule, began February 2014, Resolved.
Show all 5 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Stage 1 Disinfection Byproducts Rule
Treatment technique failure
|
Feb 1, 2014 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2010 | Resolved |
|
Stage 1 Disinfection Byproducts Rule
Treatment technique failure
|
Dec 2, 2004 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
May 1, 2000 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 1991 | Resolved |
Where the water comes from
Jefferson draws water from 2 wells.
Annual water quality report
Jefferson 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 Jefferson 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