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Non-Transient Non-Community Water System · PWS WI1570357

Weston High School

Cazenovia, Wisconsin 53924-9802 - drinking water served from groundwater sources to 162 people, tracked in EPA SDWIS and UCMR5.

162
People served
48
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 48 drinking-water violations at Weston High School - above the Wisconsin per-system average.

48
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
162
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Weston High School

Weston High School is a local-owned non-transient non-community water system that delivers drinking water to 162 residents in Cazenovia, Wisconsin (Sauk County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 48 total violations for this system , of which 0 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 48 monitoring and reporting violations are on file. The most recent violation on record dates to 1995.

The most frequently cited contaminant at this system is Endrin, recorded in 2 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%).

Weston High School's 48 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
162
Total Violations
48
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Local
Connections
1
County
Sauk
School/Daycare
Yes
MCL Violations
0
Monitoring Violations
48
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Endrin MR 2 1995
BHC-GAMMA MR 2 1995
Methoxychlor MR 2 1995
Toxaphene MR 2 1995
OXAMYL MR 2 1995
Hexachlorocyclopentadiene MR 2 1995
Aldicarb sulfoxide MR 2 1995
Aldicarb sulfone MR 2 1995
Carbofuran MR 2 1995
Aldicarb MR 2 1995
Atrazine MR 2 1995
Heptachlor MR 2 1995
Heptachlor epoxide MR 2 1995
2,4,5-TP MR 2 1995
HEXACHLOROBENZENE MR 2 1995
Total Polychlorinated Biphenyls (PCB) MR 2 1995
Picloram MR 2 1995
LASSO MR 2 1995
Simazine MR 2 1995
Pentachlorophenol MR 2 1995
Dinoseb MR 2 1995
2,4-D MR 2 1995
Chlordane MR 2 1995
Dalapon MR 2 1995

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 Weston High 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 WI1570357 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 Weston High 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
1995 Endrin MR 2 SDWIS / WI1570357 / 2005
1995 BHC-GAMMA MR 2 SDWIS / WI1570357 / 2010
1995 Methoxychlor MR 2 SDWIS / WI1570357 / 2015
1995 Toxaphene MR 2 SDWIS / WI1570357 / 2020
1995 OXAMYL MR 2 SDWIS / WI1570357 / 2036
1995 Hexachlorocyclopentadiene MR 2 SDWIS / WI1570357 / 2042
1995 Aldicarb sulfoxide MR 2 SDWIS / WI1570357 / 2043
1995 Aldicarb sulfone MR 2 SDWIS / WI1570357 / 2044
1995 Carbofuran MR 2 SDWIS / WI1570357 / 2046
1995 Aldicarb MR 2 SDWIS / WI1570357 / 2047
1995 Atrazine MR 2 SDWIS / WI1570357 / 2050
1995 Heptachlor MR 2 SDWIS / WI1570357 / 2065
1995 Heptachlor epoxide MR 2 SDWIS / WI1570357 / 2067
1995 2,4,5-TP MR 2 SDWIS / WI1570357 / 2110
1995 HEXACHLOROBENZENE MR 2 SDWIS / WI1570357 / 2274

How Weston High School Compares

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

Metric Weston High School Wisconsin avg Federal benchmark
Total violations 48 26 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 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 162 467 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 Weston High School water safe to drink? ▼
Weston High School (PWS ID: WI1570357) has 48 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 162 people using Groundwater sources.
How many people does Weston High School serve? ▼
Weston High School serves 162 people in Cazenovia, Wisconsin. It is a Local-owned system using Groundwater water sources with 1 service connections.
What type of violations does Weston High School have? ▼
Weston High School has 48 total violations: 0 health-based violations (MCL exceedances or treatment failures), 48 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Weston High School water? ▼
No PFAS testing data is available for Weston High School under the EPA's UCMR5 monitoring program.
What water source does Weston High School use? ▼
Weston High 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.