Transient Non-Community Water System · PWS WI2650980

Calvary Community Church New Bldg 1986

Williams Bay, Wisconsin 53191 - drinking water served from groundwater sources to 78 people, tracked in EPA SDWIS and UCMR5.

Compiled by PlainWater Editorial, Drinking Water Quality Editorial Team · May 15, 2026

78
People served: 201
EPA violations: 4
Health-based: Untested
UCMR5 result

The verdict

EPA records 201 drinking-water violations at Calvary Community Church New Bldg 1986, 2% of them health-based - above the Wisconsin per-system average.

201
Total EPA violations on record: 2%
Health-based (MCL / treatment failure): 78
People served by this system: N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Calvary Community Church New Bldg 1986

Calvary Community Church New Bldg 1986 is a private-owned transient non-community water system that delivers drinking water to 78 residents in Williams Bay, Wisconsin (Walworth County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 201 total violations for this system , of which 4 (2%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 197 monitoring and reporting violations are on file. The most recent violation on record dates to 2001.

The most frequently cited contaminant at this system is 1,2,4-Trichlorobenzene, recorded in 7 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%).

Calvary Community Church New Bldg 1986's 201 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

Total Violations

201

Health-Based Violations

Water Source

Groundwater

System Details

System Type: Transient Non-Community
Owner Type: Private
Connections: 1
County: Walworth
School/Daycare: No
MCL Violations: 4
Monitoring Violations: 197
Treatment Tech Violations: 0

Violation History

Contaminant violations recorded by EPA.

Contaminant	Category	Count	Latest
1,2,4-Trichlorobenzene	MR	7	2001
Xylenes, Total	MR	7	2001
Vinyl chloride	MR	7	2001
1,1-Dichloroethylene	MR	7	2001
trans-1,2-Dichloroethylene	MR	7	2001
1,2-Dichloropropane	MR	7	2001
CHLOROBENZENE	MR	7	2001
Benzene	MR	7	2001
Ethylbenzene	MR	7	2001
Toluene	MR	7	2001
1,1,1-Trichloroethane	MR	7	2001
DICHLOROMETHANE	MR	7	2001
o-Dichlorobenzene	MR	7	2001
1,2-Dichloroethane	MR	7	2001
Tetrachloroethylene	MR	7	2001
Trichloroethylene	MR	7	2001
Carbon tetrachloride	MR	7	2001
p-Dichlorobenzene	MR	7	2001
cis-1,2-Dichloroethylene	MR	7	2001
Styrene	MR	7	2001
1,1,2-Trichloroethane	MR	7	2001
Coliform (TCR)	MR	6	1995
Lead and Copper Rule	MR	5	1997
Coliform (TCR)	MCL	4	1992
Nitrate	MR	2	1997
Barium	MR	1	2001
Fluoride	MR	1	2001
Mercury	MR	1	2001
Nitrate-Nitrite	MR	1	2001
Nitrite	MR	1	2001

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 Calvary Community Church New Bldg 1986.

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 WI2650980 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 Calvary Community Church New Bldg 1986 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
2001	1,2,4-Trichlorobenzene	MR	7	SDWIS / WI2650980 / 2378
2001	Xylenes, Total	MR	7	SDWIS / WI2650980 / 2955
2001	Vinyl chloride	MR	7	SDWIS / WI2650980 / 2976
2001	1,1-Dichloroethylene	MR	7	SDWIS / WI2650980 / 2977
2001	trans-1,2-Dichloroethylene	MR	7	SDWIS / WI2650980 / 2979
2001	1,2-Dichloropropane	MR	7	SDWIS / WI2650980 / 2983
2001	CHLOROBENZENE	MR	7	SDWIS / WI2650980 / 2989
2001	Benzene	MR	7	SDWIS / WI2650980 / 2990
2001	Ethylbenzene	MR	7	SDWIS / WI2650980 / 2992
2001	Toluene	MR	7	SDWIS / WI2650980 / 2991
2001	1,1,1-Trichloroethane	MR	7	SDWIS / WI2650980 / 2981
2001	DICHLOROMETHANE	MR	7	SDWIS / WI2650980 / 2964
2001	o-Dichlorobenzene	MR	7	SDWIS / WI2650980 / 2968
2001	1,2-Dichloroethane	MR	7	SDWIS / WI2650980 / 2980
2001	Tetrachloroethylene	MR	7	SDWIS / WI2650980 / 2987

How Calvary Community Church New Bldg 1986 Compares

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

Metric	Calvary Community Church New Bldg 1986	Wisconsin avg	Federal benchmark
Total violations	201	26	SDWA compliance, any non-zero count is a recorded breach
Health-based violations	4	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	78	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 Calvary Community Church New Bldg 1986 water safe to drink? ▼

Calvary Community Church New Bldg 1986 (PWS ID: WI2650980) has 201 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 78 people using Groundwater sources.

How many people does Calvary Community Church New Bldg 1986 serve? ▼

Calvary Community Church New Bldg 1986 serves 78 people in Williams Bay, Wisconsin. It is a Private-owned system using Groundwater water sources with 1 service connections.

What type of violations does Calvary Community Church New Bldg 1986 have? ▼

Calvary Community Church New Bldg 1986 has 201 total violations: 4 health-based violations (MCL exceedances or treatment failures), 197 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Has PFAS been detected in Calvary Community Church New Bldg 1986 water? ▼

No PFAS testing data is available for Calvary Community Church New Bldg 1986 under the EPA's UCMR5 monitoring program.

What water source does Calvary Community Church New Bldg 1986 use? ▼

Calvary Community Church New Bldg 1986 uses Groundwater as its primary water source. It is classified as a Transient Non-Community Water System, serving transient populations.

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.