Public water system record
Downingtown Water Authority
Serves Downingtown, Chester County, PA · 9,900 people served
Federal records show no health-based violations and 27 monitoring/reporting issues for Downingtown Water Authority 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
- 27
Key facts
- Downingtown Water Authority draws water from 1 well and 1 surface water intake.
- Most recent formal enforcement: consent decree or court judgment by Pennsylvania, February 2005.
- Record on file since 1985, with 17 health-based violations before October 19, 2016.
- Lead pipe inventory: 8 lead and 2,301 unknown out of 4,066 service lines.
Check whether Downingtown Water Authority 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 |
|---|---|---|
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Sep 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jul 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Styrene
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Toluene
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Benzene
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Xylenes, Total
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2021 | Resolved |
|
CARBON, TOTAL
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Feb 1, 2017 | Resolved |
|
CARBON, TOTAL
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
Full record since 1985
EPA's records for Downingtown Water Authority go back to 1985. Before October 19, 2016 they list 17 health-based violations (14 resolved, 3 archived by EPA without a recorded fix) and 87 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 1 |
| 1990s | 5 | 20 |
| 2000s | 10 | 12 |
| 2010 to October 18, 2016 | 2 | 54 |
| October 19, 2016 to 2019 | 0 | 3 |
| 2020s | 0 | 24 |
Most recent health-based violation before October 19, 2016: CARBON, TOTAL, began April 2014, Resolved.
Show all 17 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
CARBON, TOTAL
Treatment technique failure
|
Apr 1, 2014 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.063 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
Apr 1, 2013 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Oct 1, 2005 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Jul 1, 2005 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Apr 1, 2005 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
|
Apr 1, 2005 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Jan 1, 2005 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
|
Jan 1, 2005 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
|
Oct 1, 2004 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Jul 1, 2004 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Apr 1, 2004 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Jan 1, 2004 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jan 1, 1998 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 1994 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
May 1, 1992 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Feb 1, 1992 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jan 1, 1992 | Archived |
Enforcement actions
Pennsylvania regulators took 1 formal enforcement action against Downingtown Water Authority in 2005. The most recent was a consent decree or court judgment in February 2005.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Feb 11, 2005 | Pennsylvania | Consent decree or court judgment | 1 violation: Consumer Confidence Rule |
Where the water comes from
Downingtown Water Authority draws water from 1 well and 1 surface water intake. It also has an emergency connection to Aqua PA Uwchlan. 1 other public water system has an emergency connection to Downingtown Water Authority.
Emergency or part-time connections to
- Aqua PA Uwchlan Bryn Mawr, PA
Annual water quality report
Downingtown Water Authority 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 Pennsylvania.
Certified drinking water labs by state EPA guidance for private wells