Public water system record
Isabel
Serves Isabel, Dewey County, SD · 145 people served
Federal records show no health-based violations and no monitoring or reporting issues for Isabel 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
- Isabel buys its water from Tri-County Rural Water System.
- Most recent formal enforcement: compliance order (no penalty) by South Dakota, December 1993.
- Record on file since 1976, with 56 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 145 unknown out of 145 service lines.
Check whether Isabel 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 Isabel go back to 1976. Before October 19, 2016 they list 56 health-based violations (56 resolved) and 47 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1970s | 0 | 2 |
| 1990s | 52 | 28 |
| 2000s | 4 | 14 |
| 2010 to October 18, 2016 | 0 | 3 |
Most recent health-based violation before October 19, 2016: Total Coliform, began September 2008, Resolved.
Show all 56 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2008 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Mar 1, 2004 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Feb 1, 2004 | Resolved |
|
Stage 1 Disinfection Byproducts Rule
Treatment technique failure
|
Jan 1, 2004 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Nov 1, 1997 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Oct 1, 1997 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Sep 1, 1997 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Aug 1, 1997 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jul 1, 1997 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jun 1, 1997 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
May 1, 1997 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Apr 1, 1997 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Mar 1, 1997 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Feb 1, 1997 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jan 1, 1997 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Dec 1, 1996 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Nov 1, 1996 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Sep 1, 1996 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Aug 1, 1996 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jul 1, 1996 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jun 1, 1996 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
May 1, 1996 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Apr 1, 1996 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Mar 1, 1996 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Feb 1, 1996 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jan 1, 1996 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Dec 1, 1995 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Nov 1, 1995 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Oct 1, 1995 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Sep 1, 1995 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Aug 1, 1995 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jul 1, 1995 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jun 1, 1995 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
May 1, 1995 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Apr 1, 1995 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Mar 1, 1995 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Feb 1, 1995 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jan 1, 1995 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Dec 1, 1994 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Nov 1, 1994 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Oct 1, 1994 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Sep 1, 1994 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Aug 1, 1994 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jul 1, 1994 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jun 1, 1994 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
May 1, 1994 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Apr 1, 1994 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Mar 1, 1994 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Feb 1, 1994 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jan 1, 1994 | Resolved |
6 older violations are not listed here. EPA ECHO has the complete list.
Enforcement actions
South Dakota regulators took 1 formal enforcement action against Isabel in 1993. The most recent was a compliance order (no penalty) in December 1993.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Dec 6, 1993 | South Dakota | Compliance order (no penalty) | 1 violation (1 health-based): Surface Water Treatment Rule |
Where the water comes from
Isabel buys its water from Tri-County Rural Water System. It lists no wells or intakes of its own.
Buys water from
- Tri-County Rural Water System Eagle Butte, SD
Annual water quality report
Isabel 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 Isabel 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