Public water system record
Oak Knoll Est MHP
Serves an area of Dauphin County, PA · 350 people served
Federal records show 1 health-based violation and 15 monitoring/reporting issues for Oak Knoll Est MHP in the last ten years. The most serious issue in this window was a resolved Groundwater Rule violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 15
Key facts
- Oak Knoll Est MHP draws water from 3 wells.
- Most recent formal enforcement: consent decree or court judgment by Pennsylvania, February 2006.
- Record on file since 1982, with 4 health-based violations before October 20, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 102 service lines.
Check whether Oak Knoll Est MHP 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 | Sep 1, 2019 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Groundwater Rule
Monitoring and reporting
|
Jun 1, 2024 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
May 1, 2024 | Resolved |
|
Nitrite
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Gross Alpha, Excl. Radon and U
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Combined Uranium
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Public Notice
OTHER
|
Sep 13, 2019 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Aug 1, 2019 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
May 1, 2019 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Mar 1, 2019 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Oct 1, 2018 | Resolved |
|
Endothall
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Nov 1, 2017 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
Full record since 1982
EPA's records for Oak Knoll Est MHP go back to 1982. Before October 20, 2016 they list 4 health-based violations (3 resolved, 1 archived by EPA without a recorded fix) and 161 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 29 |
| 1990s | 1 | 62 |
| 2000s | 0 | 56 |
| 2010 to October 19, 2016 | 3 | 14 |
| October 20, 2016 to 2019 | 1 | 8 |
| 2020s | 0 | 7 |
Most recent health-based violation before October 20, 2016: Groundwater Rule, began October 2012, Resolved.
Show all 4 health-based violations before October 20, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Groundwater Rule
Treatment technique failure
|
Oct 1, 2012 | Resolved |
|
Groundwater Rule
Treatment technique failure
|
Jul 1, 2012 | Resolved |
|
Groundwater Rule
Treatment technique failure
|
Apr 1, 2012 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 1991 | Archived |
Enforcement actions
Pennsylvania regulators took 3 formal enforcement actions against Oak Knoll Est MHP and issued 1 boil water order between 1992 and 2006. The most recent was a consent decree or court judgment in February 2006.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Feb 16, 2006 | Pennsylvania | Consent decree or court judgment | 1 violation: Total Coliform |
| Aug 23, 2005 | Pennsylvania | Consent decree or court judgment | 1 violation: Chlorine |
| Jul 28, 2004 | Pennsylvania | Consent decree or court judgment | 3 violations: Total Coliform, Chlorine |
| Jan 2, 1992 | Pennsylvania | Boil water order | 1 violation (1 health-based): Total Coliform |
What the violations mean
Groundwater Rule
1 incidentThe 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 this violation.
Where the water comes from
Oak Knoll Est MHP draws water from 3 wells.
Annual water quality report
Oak Knoll Est MHP 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 Oak Knoll Est MHP 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