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Community Water System · PWS WI1570097

Bluffview Sanitary District

Prairie Du Sac, Wisconsin 53578 - drinking water served from groundwater sources to 450 people, tracked in EPA SDWIS and UCMR5.

450
People served
32
EPA violations
12
Health-based
Untested
UCMR5 result

The verdict

EPA records 32 drinking-water violations at Bluffview Sanitary District, 38% of them health-based - above the Wisconsin per-system average.

32
Total EPA violations on record
38%
Health-based (MCL / treatment failure)
450
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Bluffview Sanitary District

Bluffview Sanitary District is a local-owned community water system that delivers drinking water to 450 residents in Prairie Du Sac, Wisconsin (Sauk County) through 267 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 32 total violations for this system , of which 12 (38%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 13 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 11 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, 78 of 202 UCMR5-tested systems have reported PFAS detections (38.6%).

Bluffview Sanitary District's 32 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
450
Total Violations
32
Health-Based Violations
12
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
267
County
Sauk
School/Daycare
No
MCL Violations
11
Monitoring Violations
13
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 11 2007
Coliform (TCR) MCL 11 2010
Consumer Confidence Rule Other 2 2012
Nitrate MR 2 1999
Public Notice Other 1 2024
LEAD AND COPPER RULE REVISIONS TT 1 2024

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 Bluffview Sanitary District.

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 WI1570097 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 Bluffview Sanitary District 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
2024 Public Notice Other 1 SDWIS / WI1570097 / 7500
2024 LEAD AND COPPER RULE REVISIONS TT 1 SDWIS / WI1570097 / 5200
2012 Consumer Confidence Rule Other 2 SDWIS / WI1570097 / 7000
2010 Coliform (TCR) MCL 11 SDWIS / WI1570097 / 3100
2007 Coliform (TCR) MR 11 SDWIS / WI1570097 / 3100
1999 Nitrate MR 2 SDWIS / WI1570097 / 1040

How Bluffview Sanitary District Compares

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

Metric Bluffview Sanitary District Wisconsin avg Federal benchmark
Total violations 32 26 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 12 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 450 467 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 Bluffview Sanitary District water safe to drink? ▼
Bluffview Sanitary District (PWS ID: WI1570097) has 32 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 450 people using Groundwater sources.
How many people does Bluffview Sanitary District serve? ▼
Bluffview Sanitary District serves 450 people in Prairie Du Sac, Wisconsin. It is a Local-owned system using Groundwater water sources with 267 service connections.
What type of violations does Bluffview Sanitary District have? ▼
Bluffview Sanitary District has 32 total violations: 12 health-based violations (MCL exceedances or treatment failures), 13 monitoring/reporting violations, and 1 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Bluffview Sanitary District water? ▼
No PFAS testing data is available for Bluffview Sanitary District under the EPA's UCMR5 monitoring program.
What water source does Bluffview Sanitary District use? ▼
Bluffview Sanitary District 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.