Public water system record
Washington County Water Company
On record as serving Nashville, Washington County, IL · Serves 11,374 people
Federal records show 1 health-based violation and 1 monitoring/reporting issue for Washington County Water Company in the last ten years. The most serious issue in this window was a resolved Interim Enhanced Surface Water Treatment Rule violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- Yes
- Monitoring issues, last 10 years
- 1
Key facts
- Washington County Water Company buys its water from Kaskaskia Water District, Nashville, Rend Lake Inter-City Water System and Kinkaid Area Water System.
- Record on file since 1994, with 3 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 340 unknown out of 4,767 service lines.
Check whether Washington County Water Company 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 |
|---|---|---|---|---|
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Jan 1, 2018 | Resolved | Yes |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Jul 2, 2025 | Active |
Full record since 1994
EPA's records for Washington County Water Company go back to 1994. Before October 19, 2016 they list 3 health-based violations (3 archived by EPA without a recorded fix) and 3 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 1 |
| 2000s | 3 | 0 |
| 2010 to October 18, 2016 | 0 | 2 |
| October 19, 2016 to 2019 | 1 | 0 |
| 2020s | 0 | 1 |
Most recent health-based violation before October 19, 2016: Total Coliform, began February 2002, Archived.
Show all 3 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Feb 1, 2002 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 2000 | Archived |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Jun 1, 2000 | Archived |
What the violations mean
Interim Enhanced Surface Water Treatment Rule
1 incidentThe system did not meet a filtration or treatment requirement for surface water
Inadequate treatment of surface water can let pathogens such as Cryptosporidium and Giardia through
Where the water comes from
Washington County Water Company buys its water from Kaskaskia Water District, Nashville, Rend Lake Inter-City Water System and Kinkaid Area Water System. It lists no wells or intakes of its own. It also has an emergency connection to Tamaroa. 3 other community water systems buy water from Washington County Water Company. 2 other public water systems have emergency connections to Washington County Water Company.
Buys water from
- Kaskaskia Water District New Athens, IL
- Nashville Nashville, IL
- Rend Lake Inter-City Water System Benton, IL
- Kinkaid Area Water System Murphysboro, IL
Emergency or part-time connections to
- Tamaroa Duquoin, IL
Annual water quality report
Washington County Water Company 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 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
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 Illinois.
Certified drinking water labs by state EPA guidance for private wells