Public water system record
Knightdale MHP Estates LLC
Serves an area of Wake County, NC that includes Raleigh · 285 people served
Federal records show 13 health-based violations and 7 monitoring/reporting issues for Knightdale MHP Estates LLC in the last ten years. The most serious issue in this window was a resolved Combined Radium (-226 and -228) violation.
System profile
- Health-based violations, last 10 years
- 13
- Resolved
- 13
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 7
Key facts
- Knightdale MHP Estates LLC draws water from 2 wells.
- Highest measured level in the last 10 years: Combined Radium (-226 and -228), 8 pCi/L, federal limit 5 pCi/L (1.6 times the limit), 2025.
- Most recent formal enforcement: compliance order (no penalty) by North Carolina, October 2025.
- Record on file since 1980, with 24 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 99 unknown out of 99 service lines.
Check whether Knightdale MHP Estates LLC 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 |
|---|---|---|---|---|
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
|
340 | Jul 1, 2025 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 20 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
|
340 | Jul 1, 2025 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8 pCi/L, federal limit 5 pCi/L (1.6 times the limit)
|
340 | Apr 1, 2025 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 23 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
|
340 | Apr 1, 2025 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
|
340 | Jan 1, 2025 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 19 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
|
340 | Jan 1, 2025 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
|
340 | Oct 1, 2024 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 22 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
|
340 | Oct 1, 2024 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
340 | Jul 1, 2024 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Jul 1, 2024 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 17 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
340 | Oct 1, 2017 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
340 | Jul 1, 2017 | Resolved | No |
|
Lead and Copper Rule
Treatment technique failure
|
350 | Dec 19, 2016 | 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
|
Nov 15, 2025 | Active |
|
Public Notice
OTHER
|
Nov 15, 2025 | Active |
|
Public Notice
OTHER
|
Aug 2, 2025 |
Active
Enforcement action in place
|
|
Public Notice
OTHER
|
Aug 2, 2025 |
Active
Enforcement action in place
|
|
Public Notice
OTHER
|
Feb 15, 2025 |
Active
Enforcement action in place
|
|
Public Notice
OTHER
|
Feb 15, 2025 |
Active
Enforcement action in place
|
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2018 | Resolved |
Full record since 1980
EPA's records for Knightdale MHP Estates LLC go back to 1980. Before October 19, 2016 they list 24 health-based violations (23 resolved, 1 archived by EPA without a recorded fix) and 66 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 44 |
| 1990s | 1 | 10 |
| 2000s | 11 | 9 |
| 2010 to October 18, 2016 | 12 | 3 |
| October 19, 2016 to 2019 | 3 | 1 |
| 2020s | 10 | 6 |
Most recent health-based violation before October 19, 2016: Gross Alpha, Excl. Radon and U, began January 2015, Resolved.
Show all 24 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 21 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
|
Jan 1, 2015 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
|
Jan 1, 2015 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 15.74 pCi/L, federal limit 15 pCi/L (at or just above the limit)
|
Oct 1, 2014 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
Oct 1, 2014 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 20.8 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
|
Jul 1, 2014 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8.3 pCi/L, federal limit 5 pCi/L (1.7 times the limit)
|
Jul 1, 2014 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 27 pCi/L, federal limit 15 pCi/L (1.8 times the limit)
|
Apr 1, 2014 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
Apr 1, 2014 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 31 pCi/L, federal limit 15 pCi/L (2.1 times the limit)
|
Jan 1, 2014 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
Jan 1, 2014 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.97 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
Jan 1, 2013 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 36.6 pCi/L, federal limit 15 pCi/L (2.4 times the limit)
|
Jan 1, 2013 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.3 pCi/L, federal limit 5 pCi/L (1.3 times the limit)
|
Jul 1, 2003 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.7 pCi/L, federal limit 5 pCi/L (1.5 times the limit)
|
Apr 1, 2003 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
Jan 1, 2003 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8 pCi/L, federal limit 5 pCi/L (1.6 times the limit)
|
Oct 1, 2002 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
Jul 1, 2002 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 5.3 pCi/L, federal limit 5 pCi/L (1.1 times the limit)
|
Apr 1, 2002 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10 pCi/L, federal limit 5 pCi/L (2 times the limit)
|
Jan 1, 2002 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9 pCi/L, federal limit 5 pCi/L (1.8 times the limit)
|
Oct 1, 2001 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.7 pCi/L, federal limit 5 pCi/L (2.1 times the limit)
|
Jul 1, 2001 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9.6 pCi/L, federal limit 5 pCi/L (1.9 times the limit)
|
Jan 1, 2001 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 5.1 pCi/L, federal limit 5 pCi/L (at or just above the limit)
|
Jan 1, 2000 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
May 1, 1997 | Resolved |
Enforcement actions
North Carolina regulators took 11 formal enforcement actions against Knightdale MHP Estates LLC between 2002 and 2025, filed as 15 records in EPA's data. The most recent was a compliance order (no penalty) in October 2025.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Oct 22, 2025 | North Carolina | Compliance order (no penalty) | 2 violations: Public Notice |
| May 14, 2025 | North Carolina | Compliance order (no penalty) | 2 violations: Public Notice |
| Nov 5, 2024 | North Carolina | Compliance order (no penalty) | 5 violations (5 health-based): Gross Alpha, Excl. Radon and U |
| Oct 22, 2024 | North Carolina | Compliance order (no penalty) | 5 violations (5 health-based): Combined Radium (-226 and -228) |
| Apr 29, 2019 | North Carolina | Compliance order (no penalty) | 1 violation: Lead and Copper Rule |
| Dec 1, 2017 | North Carolina | Compliance order (no penalty) | 2 violations (2 health-based): Gross Alpha, Excl. Radon and U |
| Aug 2, 2017 | North Carolina | Compliance order (no penalty) | 1 violation (1 health-based): Lead and Copper Rule |
| Sep 3, 2015 | North Carolina | Compliance order (no penalty) | 1 violation: Lead and Copper Rule |
| Jul 14, 2015 | North Carolina | Compliance order (no penalty) | 2 violations: Public Notice |
| Mar 6, 2014 | North Carolina | Compliance order (no penalty) | 12 violations (12 health-based): Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U |
| Jun 3, 2002 | North Carolina | Compliance order (no penalty) | 4 violations (4 health-based): Combined Radium (-226 and -228) |
What the violations mean
Gross Alpha, Excl. Radon and U
7 incidentsTest results for Gross Alpha, Excl. Radon and U were above the federal limit (a maximum contaminant level violation).
The utility had to notify customers about each of these violations.
Combined Radium (-226 and -228)
5 incidentsTest results for Combined Radium (-226 and -228) were above the federal limit (a maximum contaminant level violation).
The utility had to notify customers about each of these violations.
Lead and Copper Rule
1 incidentThe system did not complete a treatment step or action that the Lead and Copper Rule requires (a treatment technique violation).
The utility had to notify customers about this violation.
Where the water comes from
Knightdale MHP Estates LLC draws water from 2 wells.
Annual water quality report
Knightdale MHP Estates LLC 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 Knightdale MHP Estates LLC 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 North Carolina.
Certified drinking water labs by state EPA guidance for private wells