Public water system record
Aqua PA Clarendon
Serves an area of Warren County, PA that includes Clarendon · 840 people served
Federal records show 9 health-based violations and no monitoring/reporting issues for Aqua PA Clarendon in the last ten years. The most serious issue in this window was a resolved Haloacetic Acids (HAA5) violation.
System profile
- Health-based violations, last 10 years
- 9
- Resolved
- 9
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 0
Key facts
- Aqua PA Clarendon draws water from 2 wells.
- Highest measured level in the last 10 years: Haloacetic Acids (HAA5), 0.271 mg/L, federal limit 0.06 mg/L (4.5 times the limit), 2021.
- Most recent formal enforcement: signed compliance agreement by Pennsylvania, July 2007.
- Record on file since 1982, with 5 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 110 unknown out of 352 service lines.
Check whether Aqua PA Clarendon 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 |
|---|---|---|---|---|
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.062 mg/L, federal limit 0.06 mg/L (at or just above the limit)
|
220 | Jul 1, 2022 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.097 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
220 | Apr 1, 2022 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.115 mg/L, federal limit 0.06 mg/L (1.9 times the limit)
|
220 | Apr 1, 2022 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.106 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
|
220 | Jan 1, 2022 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.119 mg/L, federal limit 0.06 mg/L (2 times the limit)
|
220 | Jan 1, 2022 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.105 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
|
220 | Oct 1, 2021 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.117 mg/L, federal limit 0.06 mg/L (2 times the limit)
|
220 | Oct 1, 2021 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.091 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Jul 1, 2021 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.271 mg/L, federal limit 0.06 mg/L (4.5 times the limit)
|
220 | Jul 1, 2021 | Resolved | No |
Full record since 1982
EPA's records for Aqua PA Clarendon go back to 1982. Before October 19, 2016 they list 5 health-based violations (5 resolved) and 31 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 6 |
| 1990s | 0 | 1 |
| 2000s | 5 | 24 |
| 2020s | 9 | 0 |
Most recent health-based violation before October 19, 2016: Total Coliform, began July 2007, Resolved.
Show all 5 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 2007 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Apr 1, 2007 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Jan 1, 2007 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Oct 1, 2006 | Resolved |
|
Arsenic
Contaminant limit exceeded
|
Apr 1, 2005 | Resolved |
Enforcement actions
Pennsylvania regulators took 4 formal enforcement actions against Aqua PA Clarendon between 2006 and 2007, filed as 8 records in EPA's data. The most recent was a signed compliance agreement in July 2007.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Jul 27, 2007 | Pennsylvania | Signed compliance agreement | 2 violations (2 health-based): Arsenic |
| May 21, 2007 | Pennsylvania | Signed compliance agreement | 2 violations (2 health-based): Arsenic |
| May 18, 2007 | Pennsylvania | Signed compliance agreement | 2 violations (2 health-based): Arsenic |
| Sep 19, 2006 | Pennsylvania | Signed compliance agreement | 2 violations (2 health-based): Arsenic |
What the violations mean
Haloacetic Acids (HAA5)
5 incidentsHaloacetic acid byproducts exceeded the federal limit
Long-term exposure to HAAs may increase cancer risk
Total Trihalomethanes (TTHMs)
4 incidentsDisinfection byproduct levels exceeded the federal limit
Long-term TTHM exposure may increase bladder cancer risk
Where the water comes from
Aqua PA Clarendon draws water from 2 wells.
Annual water quality report
Aqua PA Clarendon 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