Non-Transient Non-Community Water System · PWS WI1540205

Rock County Christian School

Janesville, Wisconsin 53546 - drinking water served from groundwater sources to 105 people, tracked in EPA SDWIS and UCMR5.

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

105
People served: 135
EPA violations: 32
Health-based: Untested
UCMR5 result

The verdict

EPA records 135 drinking-water violations at Rock County Christian School, 24% of them health-based - above the Wisconsin per-system average.

135
Total EPA violations on record: 24%
Health-based (MCL / treatment failure): 105
People served by this system: N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Rock County Christian School

Rock County Christian School is a private-owned non-transient non-community water system that delivers drinking water to 105 residents in Janesville, Wisconsin (Rock County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 135 total violations for this system , of which 32 (24%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 95 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 20 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, 51 of 202 UCMR5-tested systems have reported PFAS detections (25.2%).

Rock County Christian School's 135 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

105

Total Violations

135

Health-Based Violations

Water Source

Groundwater

System Details

System Type: Non-Transient Non-Community
Owner Type: Private
Connections: 1
County: Rock
School/Daycare: Yes
MCL Violations: 24
Monitoring Violations: 95
Treatment Tech Violations: 8

Violation History

Contaminant violations recorded by EPA.

Contaminant	Category	Count	Latest
Coliform (TCR)	MCL	20	2004
Coliform (TCR)	MR	12	2012
Nitrate	MR	12	2000
Lead and Copper Rule	TT	8	2014
Public Notice	Other	8	2023
Revised Total Coliform Rule	MON	8	2022
Lead and Copper Rule	MR	7	2018
Nitrate-Nitrite	MCL	4	2001
Arsenic	MR	4	1998
Cadmium	MR	4	1998
Fluoride	MR	4	1998
Nitrite	MR	4	1998
Antimony, Total	MR	4	1998
Beryllium, Total	MR	4	1998
Thallium, Total	MR	4	1998
E. COLI	MR	4	2023
Barium	MR	4	1998
Nickel	MR	4	1998
Selenium	MR	4	1998
Di(2-ethylhexyl) phthalate	MR	4	2020
Chromium	MR	4	1998
Mercury	MR	4	1998

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 Rock County Christian School.

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 WI1540205 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 Rock County Christian School 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
2023	Public Notice	Other	8	SDWIS / WI1540205 / 7500
2023	E. COLI	MR	4	SDWIS / WI1540205 / 3014
2022	Revised Total Coliform Rule	MON	8	SDWIS / WI1540205 / 8000
2020	Di(2-ethylhexyl) phthalate	MR	4	SDWIS / WI1540205 / 2039
2018	Lead and Copper Rule	MR	7	SDWIS / WI1540205 / 5000
2014	Lead and Copper Rule	TT	8	SDWIS / WI1540205 / 5000
2012	Coliform (TCR)	MR	12	SDWIS / WI1540205 / 3100
2004	Coliform (TCR)	MCL	20	SDWIS / WI1540205 / 3100
2001	Nitrate-Nitrite	MCL	4	SDWIS / WI1540205 / 1038
2000	Nitrate	MR	12	SDWIS / WI1540205 / 1040
1998	Arsenic	MR	4	SDWIS / WI1540205 / 1005
1998	Cadmium	MR	4	SDWIS / WI1540205 / 1015
1998	Fluoride	MR	4	SDWIS / WI1540205 / 1025
1998	Nitrite	MR	4	SDWIS / WI1540205 / 1041
1998	Antimony, Total	MR	4	SDWIS / WI1540205 / 1074

How Rock County Christian School Compares

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

Metric	Rock County Christian School	Wisconsin avg	Federal benchmark
Total violations	135	26	SDWA compliance, any non-zero count is a recorded breach
Health-based violations	32	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	105	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 Rock County Christian School water safe to drink? ▼

Rock County Christian School (PWS ID: WI1540205) has 135 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 105 people using Groundwater sources.

How many people does Rock County Christian School serve? ▼

Rock County Christian School serves 105 people in Janesville, Wisconsin. It is a Private-owned system using Groundwater water sources with 1 service connections.

What type of violations does Rock County Christian School have? ▼

Rock County Christian School has 135 total violations: 32 health-based violations (MCL exceedances or treatment failures), 95 monitoring/reporting violations, and 8 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Has PFAS been detected in Rock County Christian School water? ▼

No PFAS testing data is available for Rock County Christian School under the EPA's UCMR5 monitoring program.

What water source does Rock County Christian School use? ▼

Rock County Christian School uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.

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.