Public water system record
Yerkes Water Association
Serves an area of Montgomery County, PA · 165 people served
Federal records show 8 health-based violations and 18 monitoring/reporting issues for Yerkes Water Association in the last ten years. The most serious issue in this window was a Groundwater Rule violation that EPA lists as archived, not resolved.
System profile
- Health-based violations, last 10 years
- 8
- Resolved
- 7
- Unresolved
- 0
- Archived by EPA
- 1
- Any acute record
- No
- Monitoring issues, last 10 years
- 18
Key facts
- Yerkes Water Association draws water from 2 wells.
- Most recent enforcement action: boil water order by Pennsylvania, May 2019.
- Record on file since 1991, with 3 health-based violations before October 19, 2016.
Check whether Yerkes Water Association 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 |
|---|---|---|---|---|
|
Groundwater Rule
Treatment technique failure
|
140 | Feb 1, 2026 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Groundwater Rule
Treatment technique failure
|
140 | Aug 1, 2025 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Sep 1, 2019 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Mar 1, 2019 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Jan 1, 2019 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Jul 1, 2018 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Jun 1, 2018 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Feb 1, 2017 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Public Notice
OTHER
|
Feb 13, 2026 | Active |
|
Public Notice
OTHER
|
Aug 13, 2025 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
Radium-228
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Radium-226
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Jul 1, 2020 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Jun 1, 2020 | Resolved |
|
Public Notice
OTHER
|
Mar 13, 2019 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Mar 1, 2019 | Resolved |
|
Public Notice
OTHER
|
Jan 13, 2019 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Feb 1, 2018 | Resolved |
|
Benzo(a)pyrene
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Benzo(a)pyrene
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Public Notice
OTHER
|
Apr 11, 2017 | Resolved |
|
Public Notice
OTHER
|
Feb 13, 2017 | Resolved |
Full record since 1991
EPA's records for Yerkes Water Association go back to 1991. Before October 19, 2016 they list 3 health-based violations (3 resolved) and 124 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 91 |
| 2000s | 1 | 19 |
| 2010 to October 18, 2016 | 1 | 14 |
| October 19, 2016 to 2019 | 6 | 9 |
| 2020s | 2 | 9 |
Most recent health-based violation before October 19, 2016: Groundwater Rule, began September 2016, Resolved.
Show all 3 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Groundwater Rule
Treatment technique failure
|
Sep 1, 2016 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 2004 | Resolved |
|
Trichloroethylene
Contaminant limit exceeded
|
Oct 1, 1991 | Resolved |
Enforcement actions
Pennsylvania regulators took 1 formal enforcement action against Yerkes Water Association and issued 1 boil water order between 2005 and 2019. The most recent was a boil water order in May 2019.
| Date | By | Action | Violations covered |
|---|---|---|---|
| May 13, 2019 | Pennsylvania | Boil water order | 2 violations (2 health-based): Groundwater Rule |
| Nov 23, 2005 | Pennsylvania | Consent decree or court judgment | 3 violations: Chlorine |
What the violations mean
Groundwater Rule
8 incidentsThe system did not complete a treatment step or action that the Groundwater Rule requires (a treatment technique violation).
The utility had to notify customers about each of these violations.
Where the water comes from
Yerkes Water Association draws water from 2 wells.
Annual water quality report
Yerkes Water Association 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 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Yerkes Water Association for a copy.
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