Public water system record
City of Duncanville
Serves Duncanville, Dallas County, TX · 39,413 people served
Federal records show no health-based violations and 1 monitoring/reporting issue for City of Duncanville 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
- 1
Key facts
- City of Duncanville buys its water from Dallas Water Utility.
- Record on file since 2006, with 5 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 12,642 unknown out of 13,262 service lines.
Check whether City of Duncanville 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 |
|---|---|---|
|
Lead and Copper Rule
Monitoring and reporting
|
Dec 30, 2017 | Resolved |
Full record since 2006
EPA's records for City of Duncanville go back to 2006. Before October 19, 2016 they list 5 health-based violations (5 resolved) and 6 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2000s | 5 | 5 |
| 2010 to October 18, 2016 | 0 | 1 |
| October 19, 2016 to 2019 | 0 | 1 |
Most recent health-based violation before October 19, 2016: Total Coliform, began December 2007, Resolved.
Show all 5 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 2007 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2007 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2007 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
May 1, 2006 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Apr 1, 2006 | Resolved |
Where the water comes from
City of Duncanville buys its water from Dallas Water Utility. It lists no wells or intakes of its own.
Buys water from
- Dallas Water Utility Dallas, TX
Annual water quality report
City of Duncanville 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 Texas.
Certified drinking water labs by state EPA guidance for private wells