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Transient Non-Community Water System · PWS WI1250118

Taliesin - Main Building

Spring Green, Wisconsin 53588 - drinking water served from groundwater sources to 137 people, tracked in EPA SDWIS and UCMR5.

137
People served
123
EPA violations
15
Health-based
Untested
UCMR5 result

The verdict

EPA records 123 drinking-water violations at Taliesin - Main Building, 12% of them health-based - above the Wisconsin per-system average.

123
Total EPA violations on record
12%
Health-based (MCL / treatment failure)
137
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Taliesin - Main Building

Taliesin - Main Building is a private-owned transient non-community water system that delivers drinking water to 137 residents in Spring Green, Wisconsin (Iowa County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 123 total violations for this system , of which 15 (12%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 105 monitoring and reporting violations are on file. The most recent violation on record dates to 2021.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 15 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%).

Taliesin - Main Building's 123 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
137
Total Violations
123
Health-Based Violations
15
Water Source
Groundwater

System Details

System Type
Transient Non-Community
Owner Type
Private
Connections
1
County
Iowa
School/Daycare
No
MCL Violations
15
Monitoring Violations
105
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 15 2002
Coliform (TCR) MR 8 2012
Nitrate MR 5 2012
CHLOROBENZENE MR 4 2011
cis-1,2-Dichloroethylene MR 4 2011
DICHLOROMETHANE MR 4 2011
Toluene MR 4 2011
Tetrachloroethylene MR 4 2011
Styrene MR 4 2011
1,1,2-Trichloroethane MR 4 2011
1,2-Dichloropropane MR 4 2011
trans-1,2-Dichloroethylene MR 4 2011
1,1-Dichloroethylene MR 4 2011
Vinyl chloride MR 4 2011
p-Dichlorobenzene MR 4 2011
o-Dichlorobenzene MR 4 2011
E. COLI MR 4 2012
Benzene MR 4 2011
Carbon tetrachloride MR 4 2011
1,2-Dichloroethane MR 4 2011
Revised Total Coliform Rule MON 4 2021
Ethylbenzene MR 4 2011
1,2,4-Trichlorobenzene MR 4 2011
Trichloroethylene MR 4 2011
1,1,1-Trichloroethane MR 4 2011
Xylenes, Total MR 4 2011
Public Notice Other 3 2012

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 Taliesin - Main Building.

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 WI1250118 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 Taliesin - Main Building 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
2021 Revised Total Coliform Rule MON 4 SDWIS / WI1250118 / 8000
2012 Coliform (TCR) MR 8 SDWIS / WI1250118 / 3100
2012 Nitrate MR 5 SDWIS / WI1250118 / 1040
2012 E. COLI MR 4 SDWIS / WI1250118 / 3014
2012 Public Notice Other 3 SDWIS / WI1250118 / 7500
2011 CHLOROBENZENE MR 4 SDWIS / WI1250118 / 2989
2011 cis-1,2-Dichloroethylene MR 4 SDWIS / WI1250118 / 2380
2011 DICHLOROMETHANE MR 4 SDWIS / WI1250118 / 2964
2011 Toluene MR 4 SDWIS / WI1250118 / 2991
2011 Tetrachloroethylene MR 4 SDWIS / WI1250118 / 2987
2011 Styrene MR 4 SDWIS / WI1250118 / 2996
2011 1,1,2-Trichloroethane MR 4 SDWIS / WI1250118 / 2985
2011 1,2-Dichloropropane MR 4 SDWIS / WI1250118 / 2983
2011 trans-1,2-Dichloroethylene MR 4 SDWIS / WI1250118 / 2979
2011 1,1-Dichloroethylene MR 4 SDWIS / WI1250118 / 2977

How Taliesin - Main Building Compares

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

Metric Taliesin - Main Building Wisconsin avg Federal benchmark
Total violations 123 26 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 15 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 137 467 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 Taliesin - Main Building water safe to drink? ▼
Taliesin - Main Building (PWS ID: WI1250118) has 123 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 137 people using Groundwater sources.
How many people does Taliesin - Main Building serve? ▼
Taliesin - Main Building serves 137 people in Spring Green, Wisconsin. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does Taliesin - Main Building have? ▼
Taliesin - Main Building has 123 total violations: 15 health-based violations (MCL exceedances or treatment failures), 105 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Taliesin - Main Building water? ▼
No PFAS testing data is available for Taliesin - Main Building under the EPA's UCMR5 monitoring program.
What water source does Taliesin - Main Building use? ▼
Taliesin - Main Building 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.