PlainWater
States → Wisconsin

Community Water System · PWS WI6100331

Pine Island Estates

Charles Town, Wisconsin 25414 - drinking water served from groundwater sources to 75 people, tracked in EPA SDWIS and UCMR5.

75
People served
236
EPA violations
20
Health-based
Untested
UCMR5 result

The verdict

EPA records 236 drinking-water violations at Pine Island Estates, 8% of them health-based - above the Wisconsin per-system average.

236
Total EPA violations on record
8%
Health-based (MCL / treatment failure)
75
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Pine Island Estates

Pine Island Estates is a private-owned community water system that delivers drinking water to 75 residents in Charles Town, Wisconsin (Clark County) through 28 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 236 total violations for this system , of which 20 (8%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 199 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 Coliform (TCR), recorded in 33 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 Wisconsin, EPA tracks 10,988 public water systems serving 5,131,439 people, with 285,161 cumulative violations and 58,688 health-based violations on record. About 72% of systems in the state carry at least one violation, and state-wide the average per system is 26 violations. Statewide, 51 of 202 UCMR5-tested systems have reported PFAS detections (25.2%).

Pine Island Estates's 236 violations sit above the Wisconsin 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
75
Total Violations
236
Health-Based Violations
20
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
28
County
Clark
School/Daycare
No
MCL Violations
20
Monitoring Violations
199
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 33 2010
Coliform (TCR) MCL 20 2015
Consumer Confidence Rule Other 16 2025
Lead and Copper Rule MR 9 2022
Carbofuran MR 9 2018
Atrazine MR 9 2018
OXAMYL MR 9 2018
LASSO MR 6 1994
Nitrate MR 5 2010
Heptachlor MR 5 1994
Heptachlor epoxide MR 5 1994
2,4-D MR 5 1994
2,4,5-TP MR 5 1994
HEXACHLOROBENZENE MR 5 1994
Methoxychlor MR 5 1994
Dalapon MR 5 1994
Endrin MR 5 1994
Toxaphene MR 5 1994
Simazine MR 5 1994
Picloram MR 5 1994
Aldicarb sulfone MR 5 1994
Aldicarb MR 5 1994
Total Polychlorinated Biphenyls (PCB) MR 5 1994
BHC-GAMMA MR 5 1994
Dinoseb MR 5 1994
Hexachlorocyclopentadiene MR 5 1994
Aldicarb sulfoxide MR 5 1994
Chlordane MR 5 1994
Pentachlorophenol MR 5 1994
Glyphosate MR 4 2018

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 Pine Island 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 WI6100331 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Wisconsin Drinking Water Authority

Wisconsin DNR, Drinking Water and Groundwater is the primacy agency that licenses and inspects Pine Island Estates under EPA-delegated authority.

Open WI regulator portal

Source: Wisconsin DNR, Drinking Water and Groundwater

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
2025 Consumer Confidence Rule Other 16 SDWIS / WI6100331 / 7000
2022 Lead and Copper Rule MR 9 SDWIS / WI6100331 / 5000
2019 Revised Total Coliform Rule MON 4 SDWIS / WI6100331 / 8000
2018 Carbofuran MR 9 SDWIS / WI6100331 / 2046
2018 Atrazine MR 9 SDWIS / WI6100331 / 2050
2018 OXAMYL MR 9 SDWIS / WI6100331 / 2036
2018 Glyphosate MR 4 SDWIS / WI6100331 / 2034
2018 Diquat MR 4 SDWIS / WI6100331 / 2032
2018 Endothall MR 4 SDWIS / WI6100331 / 2033
2015 Coliform (TCR) MCL 20 SDWIS / WI6100331 / 3100
2010 Coliform (TCR) MR 33 SDWIS / WI6100331 / 3100
2010 Nitrate MR 5 SDWIS / WI6100331 / 1040
1994 LASSO MR 6 SDWIS / WI6100331 / 2051
1994 Heptachlor MR 5 SDWIS / WI6100331 / 2065
1994 Heptachlor epoxide MR 5 SDWIS / WI6100331 / 2067

How Pine Island Estates Compares

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

Metric Pine Island Estates Wisconsin avg Federal benchmark
Total violations 236 26 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 20 5.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 25.2% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 75 467 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 10,988 regulated public water systems in Wisconsin.

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 Pine Island Estates water safe to drink? ▼
Pine Island Estates (PWS ID: WI6100331) has 236 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 75 people using Groundwater sources.
How many people does Pine Island Estates serve? ▼
Pine Island Estates serves 75 people in Charles Town, Wisconsin. It is a Private-owned system using Groundwater water sources with 28 service connections.
What type of violations does Pine Island Estates have? ▼
Pine Island Estates has 236 total violations: 20 health-based violations (MCL exceedances or treatment failures), 199 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Pine Island Estates water? ▼
No PFAS testing data is available for Pine Island Estates under the EPA's UCMR5 monitoring program.
What water source does Pine Island Estates use? ▼
Pine Island 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.