Community Water System · PWS VA6099110
Cedar Knoll Apt
Dahlgren, Virginia 22448 - drinking water served from groundwater sources to 50 people, tracked in EPA SDWIS and UCMR5.
- 50
- People served
- 294
- EPA violations
- 19
- Health-based
- Untested
- UCMR5 result
The verdict
EPA records 294 drinking-water violations at Cedar Knoll Apt, 6% of them health-based - above the Virginia per-system average.
- 294
- Total EPA violations on record
- 6%
- Health-based (MCL / treatment failure)
- 50
- People served by this system
- N/A
- PFAS compounds detected (UCMR5)
Water Quality Snapshot: Cedar Knoll Apt
Cedar Knoll Apt is a private-owned community water system that delivers drinking water to 50 residents in Dahlgren, Virginia (King George County) through 8 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 294 total violations for this system , of which 19 (6%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 254 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.
The most frequently cited contaminant at this system is Coliform (TCR), recorded in 19 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 Virginia, EPA tracks 2,821 public water systems serving 7,911,199 people, with 146,670 cumulative violations and 25,642 health-based violations on record. About 90% of systems in the state carry at least one violation, and state-wide the average per system is 52 violations. Statewide, 70 of 171 UCMR5-tested systems have reported PFAS detections (40.9%).
Cedar Knoll Apt's 294 violations sit above the Virginia average.
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
- 8
- County
- King George
- School/Daycare
- No
- MCL Violations
- 19
- Monitoring Violations
- 254
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 19 | 2002 |
| Nitrate-Nitrite | MR | 19 | 2023 |
| Coliform (TCR) | MR | 15 | 2003 |
| TTHM | MR | 14 | 2014 |
| Arsenic | MR | 9 | 2009 |
| Barium | MR | 9 | 2009 |
| Cadmium | MR | 9 | 2009 |
| Chromium | MR | 9 | 2009 |
| Nickel | MR | 9 | 2009 |
| Selenium | MR | 9 | 2009 |
| Gross Alpha, Excl. Radon and U | MR | 9 | 2009 |
| Combined Uranium | MR | 9 | 2009 |
| Combined Radium (-226 and -228) | MR | 9 | 2009 |
| Mercury | MR | 9 | 2009 |
| Thallium, Total | MR | 9 | 2009 |
| Beryllium, Total | MR | 9 | 2009 |
| Fluoride | MR | 9 | 2009 |
| Antimony, Total | MR | 9 | 2009 |
| Total Haloacetic Acids (HAA5) | MR | 8 | 2014 |
| CYANIDE | MR | 6 | 2009 |
| Consumer Confidence Rule | Other | 4 | 2008 |
| Xylenes, Total | MR | 3 | 2003 |
| DICHLOROMETHANE | MR | 3 | 2003 |
| o-Dichlorobenzene | MR | 3 | 2003 |
| p-Dichlorobenzene | MR | 3 | 2003 |
| Vinyl chloride | MR | 3 | 2003 |
| trans-1,2-Dichloroethylene | MR | 3 | 2003 |
| 1,2-Dichloroethane | MR | 3 | 2003 |
| Carbon tetrachloride | MR | 3 | 2003 |
| 1,2-Dichloropropane | MR | 3 | 2003 |
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 Cedar Knoll Apt.
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 VA6099110 on SDWISSource: EPA SDWIS Federal Reports Search
Virginia Drinking Water Authority
Virginia Department of Health, Office of Drinking Water is the primacy agency that licenses and inspects Cedar Knoll Apt under EPA-delegated authority.
Open VA regulator portalSource: Virginia Department of Health, Office of Drinking Water
Violation 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 |
|---|---|---|---|---|
| 2023 | Nitrate-Nitrite | MR | 19 | SDWIS / VA6099110 / 1038 |
| 2022 | Revised Total Coliform Rule | Other | 2 | SDWIS / VA6099110 / 8000 |
| 2014 | TTHM | MR | 14 | SDWIS / VA6099110 / 2950 |
| 2014 | Total Haloacetic Acids (HAA5) | MR | 8 | SDWIS / VA6099110 / 2456 |
| 2012 | Lead and Copper Rule | MR | 3 | SDWIS / VA6099110 / 5000 |
| 2009 | Arsenic | MR | 9 | SDWIS / VA6099110 / 1005 |
| 2009 | Barium | MR | 9 | SDWIS / VA6099110 / 1010 |
| 2009 | Cadmium | MR | 9 | SDWIS / VA6099110 / 1015 |
| 2009 | Chromium | MR | 9 | SDWIS / VA6099110 / 1020 |
| 2009 | Nickel | MR | 9 | SDWIS / VA6099110 / 1036 |
| 2009 | Selenium | MR | 9 | SDWIS / VA6099110 / 1045 |
| 2009 | Gross Alpha, Excl. Radon and U | MR | 9 | SDWIS / VA6099110 / 4000 |
| 2009 | Combined Uranium | MR | 9 | SDWIS / VA6099110 / 4006 |
| 2009 | Combined Radium (-226 and -228) | MR | 9 | SDWIS / VA6099110 / 4010 |
| 2009 | Mercury | MR | 9 | SDWIS / VA6099110 / 1035 |
How Cedar Knoll Apt Compares
Cross-reference this system's record against state averages and the federal MCL framework for context.
| Metric | Cedar Knoll Apt | Virginia avg | Federal benchmark |
|---|---|---|---|
| Total violations | 294 | 52 | SDWA compliance, any non-zero count is a recorded breach |
| Health-based violations | 19 | 9.1 | Indicates a contaminant exceeded a federal MCL |
| PFAS detection | None | 40.9% | EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt |
| Population served | 50 | 2,804 | Sizing context for compliance burden |
Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 2,821 regulated public water systems in Virginia.
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 (EPA proposed extending to 2031, not yet final as of May 2026) |
| Nitrate (as N) | 10 mg/L | Acute health risk for infants |
Frequently Asked Questions
Is Cedar Knoll Apt water safe to drink? ▼
How many people does Cedar Knoll Apt serve? ▼
What type of violations does Cedar Knoll Apt have? ▼
Has PFAS been detected in Cedar Knoll Apt water? ▼
What water source does Cedar Knoll Apt use? ▼
Where does this data come from? ▼
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.