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Non-Transient Non-Community Water System · PWS WI4430157

Building Blocks Childcare Center

Sobieski, Wisconsin 54171 - drinking water served from groundwater sources to 70 people, tracked in EPA SDWIS and UCMR5.

70
People served
193
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 193 drinking-water violations at Building Blocks Childcare Center - above the Wisconsin per-system average.

193
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
70
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Building Blocks Childcare Center

Building Blocks Childcare Center is a private-owned non-transient non-community water system that delivers drinking water to 70 residents in Sobieski, Wisconsin (Oconto County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 193 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 189 monitoring and reporting violations are on file. The most recent violation on record dates to 2015.

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

Building Blocks Childcare Center's 193 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
70
Total Violations
193
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
1
County
Oconto
School/Daycare
Yes
MCL Violations
0
Monitoring Violations
189
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 15 2015
Public Notice Other 4 2004
cis-1,2-Dichloroethylene MR 3 2004
Xylenes, Total MR 3 2004
trans-1,2-Dichloroethylene MR 3 2004
1,2-Dichloroethane MR 3 2004
1,1,1-Trichloroethane MR 3 2004
Trichloroethylene MR 3 2004
1,1,2-Trichloroethane MR 3 2004
Ethylbenzene MR 3 2004
Arsenic MR 3 2004
Chromium MR 3 2004
Fluoride MR 3 2004
Nitrate-Nitrite MR 3 2004
Nitrate MR 3 2004
Nitrite MR 3 2004
Selenium MR 3 2004
Antimony, Total MR 3 2004
Beryllium, Total MR 3 2004
Endrin MR 3 2004
Methoxychlor MR 3 2004
Dalapon MR 3 2004
Endothall MR 3 2004
Glyphosate MR 3 2004
Simazine MR 3 2004
Dinoseb MR 3 2004
Atrazine MR 3 2004
LASSO MR 3 2004
Heptachlor MR 3 2004
Heptachlor epoxide MR 3 2004

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 Building Blocks Childcare Center.

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 WI4430157 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 Building Blocks Childcare Center 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
2015 Coliform (TCR) MR 15 SDWIS / WI4430157 / 3100
2004 Public Notice Other 4 SDWIS / WI4430157 / 7500
2004 cis-1,2-Dichloroethylene MR 3 SDWIS / WI4430157 / 2380
2004 Xylenes, Total MR 3 SDWIS / WI4430157 / 2955
2004 trans-1,2-Dichloroethylene MR 3 SDWIS / WI4430157 / 2979
2004 1,2-Dichloroethane MR 3 SDWIS / WI4430157 / 2980
2004 1,1,1-Trichloroethane MR 3 SDWIS / WI4430157 / 2981
2004 Trichloroethylene MR 3 SDWIS / WI4430157 / 2984
2004 1,1,2-Trichloroethane MR 3 SDWIS / WI4430157 / 2985
2004 Ethylbenzene MR 3 SDWIS / WI4430157 / 2992
2004 Arsenic MR 3 SDWIS / WI4430157 / 1005
2004 Chromium MR 3 SDWIS / WI4430157 / 1020
2004 Fluoride MR 3 SDWIS / WI4430157 / 1025
2004 Nitrate-Nitrite MR 3 SDWIS / WI4430157 / 1038
2004 Nitrate MR 3 SDWIS / WI4430157 / 1040

How Building Blocks Childcare Center Compares

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

Metric Building Blocks Childcare Center Wisconsin avg Federal benchmark
Total violations 193 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 38.6% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 70 467 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 Building Blocks Childcare Center water safe to drink? ▼
Building Blocks Childcare Center (PWS ID: WI4430157) has 193 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 70 people using Groundwater sources.
How many people does Building Blocks Childcare Center serve? ▼
Building Blocks Childcare Center serves 70 people in Sobieski, Wisconsin. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does Building Blocks Childcare Center have? ▼
Building Blocks Childcare Center has 193 total violations: 0 health-based violations (MCL exceedances or treatment failures), 189 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Building Blocks Childcare Center water? ▼
No PFAS testing data is available for Building Blocks Childcare Center under the EPA's UCMR5 monitoring program.
What water source does Building Blocks Childcare Center use? ▼
Building Blocks Childcare Center 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.