KNIGHTDALE MHP ESTATES LLC
PWS ID: NC0392214 · KNIGHTDALE, North Carolina 27545
KNIGHTDALE MHP ESTATES LLC serves 285 people in KNIGHTDALE, North Carolina using Groundwater water sources. It has 320 recorded EPA violations, including 171 health-based violations. No PFAS contamination was detected in UCMR5 testing.
Water Quality Snapshot: KNIGHTDALE MHP ESTATES LLC
KNIGHTDALE MHP ESTATES LLC is a private-owned community water system that delivers drinking water to 285 residents in KNIGHTDALE, North Carolina (Wake County) through 112 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 320 total violations for this system , of which 171 (53%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 93 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.
The most frequently cited contaminant at this system is Combined Radium (-226 and -228), recorded in 108 violations (MCL, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.
Across North Carolina, EPA tracks 5,020 public water systems serving 9,877,724 people, with 524,053 cumulative violations and 38,492 health-based violations on record. About 93% of systems in the state carry at least one violation, and state-wide the average per system is 104.4 violations. KNIGHTDALE MHP ESTATES LLC's 320 violations sit above the North Carolina average. Statewide, 174 of 287 UCMR5-tested systems have reported PFAS detections (60.6%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 112
- County
- Wake
- School/Daycare
- No
- MCL Violations
- 166
- Monitoring Violations
- 93
- Treatment Tech Violations
- 5
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Combined Radium (-226 and -228) | MCL | 108 | 2025 |
| Gross Alpha, Excl. Radon and U | MCL | 55 | 2025 |
| Public Notice | Other | 24 | 2025 |
| Gross Alpha, Excl. Radon and U | MR | 20 | 1995 |
| Coliform (TCR) | MR | 18 | 1994 |
| Combined Radium (-226 and -228) | MR | 10 | 2004 |
| Arsenic | MR | 9 | 1988 |
| Lead and Copper Rule | MR | 6 | 2018 |
| Lead and Copper Rule | TT | 5 | 2016 |
| Selenium | MR | 4 | 1988 |
| Fluoride | MR | 4 | 1988 |
| Cadmium | MR | 4 | 1988 |
| Barium | MR | 4 | 1988 |
| Chromium | MR | 4 | 1988 |
| Nitrate | MR | 4 | 1988 |
| Mercury | MR | 4 | 1988 |
| Coliform (TCR) | MCL | 3 | 1997 |
| Consumer Confidence Rule | Other | 3 | 2001 |
| Gross Beta Particle Activity | MR | 2 | 1980 |
Verify This Water System
The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for KNIGHTDALE MHP ESTATES LLC.
EPA SDWIS — Federal Reports
EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:
View PWS ID NC0392214 on SDWISSource: EPA SDWIS Federal Reports Search
North Carolina Drinking Water Authority
North Carolina DEQ — Public Water Supply Section is the primacy agency that licenses and inspects KNIGHTDALE MHP ESTATES LLC under EPA-delegated authority.
Open NC regulator portalViolation Timeline
Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.
| Year (latest) | Contaminant | Category | Count | EPA Record |
|---|---|---|---|---|
| 2025 | Combined Radium (-226 and -228) | MCL | 108 | SDWIS / NC0392214 / 4010 |
| 2025 | Gross Alpha, Excl. Radon and U | MCL | 55 | SDWIS / NC0392214 / 4000 |
| 2025 | Public Notice | Other | 24 | SDWIS / NC0392214 / 7500 |
| 2018 | Lead and Copper Rule | MR | 6 | SDWIS / NC0392214 / 5000 |
| 2016 | Lead and Copper Rule | TT | 5 | SDWIS / NC0392214 / 5000 |
| 2004 | Combined Radium (-226 and -228) | MR | 10 | SDWIS / NC0392214 / 4010 |
| 2001 | Consumer Confidence Rule | Other | 3 | SDWIS / NC0392214 / 7000 |
| 1997 | Coliform (TCR) | MCL | 3 | SDWIS / NC0392214 / 3100 |
| 1995 | Gross Alpha, Excl. Radon and U | MR | 20 | SDWIS / NC0392214 / 4000 |
| 1994 | Coliform (TCR) | MR | 18 | SDWIS / NC0392214 / 3100 |
| 1988 | Arsenic | MR | 9 | SDWIS / NC0392214 / 1005 |
| 1988 | Selenium | MR | 4 | SDWIS / NC0392214 / 1045 |
| 1988 | Fluoride | MR | 4 | SDWIS / NC0392214 / 1025 |
| 1988 | Cadmium | MR | 4 | SDWIS / NC0392214 / 1015 |
| 1988 | Barium | MR | 4 | SDWIS / NC0392214 / 1010 |
How KNIGHTDALE MHP ESTATES LLC Compares
Cross-reference this system's record against state averages and the federal MCL framework for context.
| Metric | KNIGHTDALE MHP ESTATES LLC | North Carolina avg | Federal benchmark |
|---|---|---|---|
| Total violations | 320 | 104.4 | SDWA compliance — any non-zero count is a recorded breach |
| Health-based violations | 171 | 7.7 | Indicates a contaminant exceeded a federal MCL |
| PFAS detection | None | 60.6% | EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt |
| Population served | 285 | 1,968 | Sizing context for compliance burden |
Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 5,020 regulated public water systems in North Carolina.
Federal MCL reference — Safe Drinking Water Act thresholds ▼
| Contaminant | Federal MCL / Action Level | Note |
|---|---|---|
| Lead | 0 mg/L (Action Level: 0.015 mg/L) | Lead and Copper Rule treatment technique |
| Arsenic | 0.010 mg/L (10 ppb) | Health-based MCL since 2006 |
| Total Coliform | Treatment technique (RTCR) | Indicator organism, monitoring trigger |
| PFOA / PFOS (PFAS) | 4.0 ppt each (final 2024 rule) | Compliance deadline 2029 |
| Nitrate (as N) | 10 mg/L | Acute health risk for infants |
Frequently Asked Questions
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Related Data for North Carolina
Read our methodology — how this data is sourced, computed, and verified.