Community Water System · PWS DE0000521
Carey Estates, LLC
Rehoboth Beach, Delaware 19971 - drinking water served from groundwater sources to 312 people, tracked in EPA SDWIS and UCMR5.
- 312
- People served
- 21
- EPA violations
- 10
- Health-based
- Untested
- UCMR5 result
The verdict
EPA records 21 drinking-water violations at Carey Estates, LLC, 48% of them health-based - above the Delaware per-system average.
- 21
- Total EPA violations on record
- 48%
- Health-based (MCL / treatment failure)
- 312
- People served by this system
- N/A
- PFAS compounds detected (UCMR5)
Water Quality Snapshot: Carey Estates, LLC
Carey Estates, LLC is a private-owned community water system that delivers drinking water to 312 residents in Rehoboth Beach, Delaware (Sussex County) through 103 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 21 total violations for this system , of which 10 (48%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 3 monitoring and reporting violations are on file. The most recent violation on record dates to 2019.
The most frequently cited contaminant at this system is Nitrate, recorded in 7 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 Delaware, EPA tracks 460 public water systems serving 1,083,630 people, with 9,105 cumulative violations and 4,582 health-based violations on record. About 75% of systems in the state carry at least one violation, and state-wide the average per system is 19.8 violations. Statewide, 25 of 35 UCMR5-tested systems have reported PFAS detections (71.4%).
Carey Estates, LLC's 21 violations sit above the Delaware 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
- 103
- County
- Sussex
- School/Daycare
- No
- MCL Violations
- 10
- Monitoring Violations
- 3
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrate | MCL | 7 | 2019 |
| Lead and Copper Rule | MR | 3 | 1994 |
| Coliform (TCR) | MCL | 3 | 2007 |
| Consumer Confidence Rule | Other | 2 | 2016 |
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 Carey 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 DE0000521 on SDWISSource: EPA SDWIS Federal Reports Search
Delaware Drinking Water Authority
Delaware's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.
Find DE regulator via EPA SDWISViolation 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 |
|---|---|---|---|---|
| 2019 | Nitrate | MCL | 7 | SDWIS / DE0000521 / 1040 |
| 2016 | Consumer Confidence Rule | Other | 2 | SDWIS / DE0000521 / 7000 |
| 2007 | Coliform (TCR) | MCL | 3 | SDWIS / DE0000521 / 3100 |
| 1994 | Lead and Copper Rule | MR | 3 | SDWIS / DE0000521 / 5000 |
How Carey Estates, LLC Compares
Cross-reference this system's record against state averages and the federal MCL framework for context.
| Metric | Carey Estates, LLC | Delaware avg | Federal benchmark |
|---|---|---|---|
| Total violations | 21 | 19.8 | SDWA compliance, any non-zero count is a recorded breach |
| Health-based violations | 10 | 10 | Indicates a contaminant exceeded a federal MCL |
| PFAS detection | None | 71.4% | EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt |
| Population served | 312 | 2,356 | Sizing context for compliance burden |
Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 460 regulated public water systems in Delaware.
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 Carey Estates, LLC water safe to drink? ▼
How many people does Carey Estates, LLC serve? ▼
What type of violations does Carey Estates, LLC have? ▼
Has PFAS been detected in Carey Estates, LLC water? ▼
What water source does Carey Estates, LLC 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.