Public water system record
Dupo
Serves Dupo, St. Clair County, IL · 4,684 people served
Federal records show no health-based violations and 2 monitoring/reporting issues for Dupo 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
- 2
Key facts
- Dupo draws water from 2 wells.
- Record on file since 1998, with 0 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 2,082 service lines.
Check whether Dupo 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.
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2024 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2019 | Resolved |
Full record since 1998
EPA's records for Dupo go back to 1998. Before October 19, 2016 they list no health-based violations and 2 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 2 |
| October 19, 2016 to 2019 | 0 | 1 |
| 2020s | 0 | 1 |
Where the water comes from
Dupo draws water from 2 wells. It also has an emergency connection to IL American-East St Louis. 2 other public water systems have emergency connections to Dupo.
Emergency or part-time connections to
- IL American-East St Louis Godfrey, IL
Annual water quality report
Dupo 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 Illinois.
Certified drinking water labs by state EPA guidance for private wells