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Community Water System · PWS WI1110066

Crystal Lake RV Resort LLC

Lodi, Wisconsin 53555 - drinking water served from groundwater sources to 725 people, tracked in EPA SDWIS and UCMR5.

725
People served
127
EPA violations
51
Health-based
Untested
UCMR5 result

The verdict

EPA records 127 drinking-water violations at Crystal Lake RV Resort LLC, 40% of them health-based - above the Wisconsin per-system average.

127
Total EPA violations on record
40%
Health-based (MCL / treatment failure)
725
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Crystal Lake RV Resort LLC

Crystal Lake RV Resort LLC is a private-owned community water system that delivers drinking water to 725 residents in Lodi, Wisconsin (Columbia County) through 395 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 127 total violations for this system , of which 51 (40%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 52 monitoring and reporting violations are on file. The most recent violation on record dates to 2022.

The most frequently cited contaminant at this system is Arsenic, recorded in 39 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 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, 78 of 202 UCMR5-tested systems have reported PFAS detections (38.6%).

Crystal Lake RV Resort LLC's 127 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
725
Total Violations
127
Health-Based Violations
51
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
395
County
Columbia
School/Daycare
No
MCL Violations
51
Monitoring Violations
52
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Arsenic MCL 39 2022
Arsenic MR 25 2015
Public Notice Other 15 2008
Coliform (TCR) MCL 12 1998
Coliform (TCR) MR 8 2008
Consumer Confidence Rule Other 6 2017
Lead and Copper Rule MR 4 1994
Combined Uranium MR 3 2007
Combined Radium (-226 and -228) MR 3 2007
Radium-226 MR 3 2007
Radium-228 MR 3 2007
Gross Alpha, Excl. Radon and U MR 3 2007

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 Crystal Lake RV Resort LLC.

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 WI1110066 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 Crystal Lake RV Resort LLC 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
2022 Arsenic MCL 39 SDWIS / WI1110066 / 1005
2017 Consumer Confidence Rule Other 6 SDWIS / WI1110066 / 7000
2015 Arsenic MR 25 SDWIS / WI1110066 / 1005
2008 Public Notice Other 15 SDWIS / WI1110066 / 7500
2008 Coliform (TCR) MR 8 SDWIS / WI1110066 / 3100
2007 Combined Uranium MR 3 SDWIS / WI1110066 / 4006
2007 Combined Radium (-226 and -228) MR 3 SDWIS / WI1110066 / 4010
2007 Radium-226 MR 3 SDWIS / WI1110066 / 4020
2007 Radium-228 MR 3 SDWIS / WI1110066 / 4030
2007 Gross Alpha, Excl. Radon and U MR 3 SDWIS / WI1110066 / 4000
1998 Coliform (TCR) MCL 12 SDWIS / WI1110066 / 3100
1994 Lead and Copper Rule MR 4 SDWIS / WI1110066 / 5000

How Crystal Lake RV Resort LLC Compares

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

Metric Crystal Lake RV Resort LLC Wisconsin avg Federal benchmark
Total violations 127 26 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 51 5.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 38.6% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 725 467 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 Crystal Lake RV Resort LLC water safe to drink? ▼
Crystal Lake RV Resort LLC (PWS ID: WI1110066) has 127 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 725 people using Groundwater sources.
How many people does Crystal Lake RV Resort LLC serve? ▼
Crystal Lake RV Resort LLC serves 725 people in Lodi, Wisconsin. It is a Private-owned system using Groundwater water sources with 395 service connections.
What type of violations does Crystal Lake RV Resort LLC have? ▼
Crystal Lake RV Resort LLC has 127 total violations: 51 health-based violations (MCL exceedances or treatment failures), 52 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Crystal Lake RV Resort LLC water? ▼
No PFAS testing data is available for Crystal Lake RV Resort LLC under the EPA's UCMR5 monitoring program.
What water source does Crystal Lake RV Resort LLC use? ▼
Crystal Lake RV Resort LLC 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.