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Community Water System · PWS AR0000780

Lake Lucerne Estates

Eureka Springs, Arkansas 72632 - drinking water served from groundwater sources to 65 people, tracked in EPA SDWIS and UCMR5.

65
People served
207
EPA violations
42
Health-based
Untested
UCMR5 result

The verdict

EPA records 207 drinking-water violations at Lake Lucerne Estates, 20% of them health-based - above the Arkansas per-system average.

207
Total EPA violations on record
20%
Health-based (MCL / treatment failure)
65
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Lake Lucerne Estates

Lake Lucerne Estates is a local-owned community water system that delivers drinking water to 65 residents in Eureka Springs, Arkansas (Carroll County) through 26 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 207 total violations for this system , of which 42 (20%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 96 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 90 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Arkansas, EPA tracks 1,016 public water systems serving 3,049,400 people, with 53,437 cumulative violations and 21,598 health-based violations on record. About 94% of systems in the state carry at least one violation, and state-wide the average per system is 52.6 violations. Statewide, 57 of 172 UCMR5-tested systems have reported PFAS detections (33.1%).

Lake Lucerne Estates's 207 violations sit above the Arkansas average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
65
Total Violations
207
Health-Based Violations
42
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
26
County
Carroll
School/Daycare
No
MCL Violations
13
Monitoring Violations
96
Treatment Tech Violations
29

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 90 2007
Coliform (TCR) Other 37 1998
Stage 1 Disinfectants and Disinfection Byproducts Rule TT 24 2023
Coliform (TCR) MCL 13 2004
Revised Total Coliform Rule RPT 12 2023
Public Notice Other 5 2024
Lead and Copper Rule MR 4 2020
Revised Total Coliform Rule TT 4 2023
Coliform (Pre-TCR) Other 3 1990
Chlorine MR 2 2006
Consumer Confidence Rule Other 2 2021
Lead and Copper Rule TT 1 2006

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 Lake Lucerne Estates.

Federal Source of Truth

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 AR0000780 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Arkansas Drinking Water Authority

Arkansas'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 AR regulator via EPA SDWIS

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
2024 Public Notice Other 5 SDWIS / AR0000780 / 7500
2023 Stage 1 Disinfectants and Disinfection Byproducts Rule TT 24 SDWIS / AR0000780 / 0400
2023 Revised Total Coliform Rule RPT 12 SDWIS / AR0000780 / 8000
2023 Revised Total Coliform Rule TT 4 SDWIS / AR0000780 / 8000
2021 Consumer Confidence Rule Other 2 SDWIS / AR0000780 / 7000
2020 Lead and Copper Rule MR 4 SDWIS / AR0000780 / 5000
2007 Coliform (TCR) MR 90 SDWIS / AR0000780 / 3100
2006 Chlorine MR 2 SDWIS / AR0000780 / 0999
2006 Lead and Copper Rule TT 1 SDWIS / AR0000780 / 5000
2004 Coliform (TCR) MCL 13 SDWIS / AR0000780 / 3100
1998 Coliform (TCR) Other 37 SDWIS / AR0000780 / 3100
1990 Coliform (Pre-TCR) Other 3 SDWIS / AR0000780 / 3000

How Lake Lucerne Estates Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Lake Lucerne Estates Arkansas avg Federal benchmark
Total violations 207 52.6 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 42 21.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 33.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 65 3,001 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,016 regulated public water systems in Arkansas.

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 Lake Lucerne Estates water safe to drink? ▼
Lake Lucerne Estates (PWS ID: AR0000780) has 207 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 65 people using Groundwater sources.
How many people does Lake Lucerne Estates serve? ▼
Lake Lucerne Estates serves 65 people in Eureka Springs, Arkansas. It is a Local-owned system using Groundwater water sources with 26 service connections.
What type of violations does Lake Lucerne Estates have? ▼
Lake Lucerne Estates has 207 total violations: 42 health-based violations (MCL exceedances or treatment failures), 96 monitoring/reporting violations, and 29 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Lake Lucerne Estates water? ▼
No PFAS testing data is available for Lake Lucerne Estates under the EPA's UCMR5 monitoring program.
What water source does Lake Lucerne Estates use? ▼
Lake Lucerne Estates uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

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.