Community Water System · PWS WI7210112

Blackwell Civilian Consvtn Ctr

Laona, Wisconsin 54541-9293 - drinking water served from groundwater sources to 190 people, tracked in EPA SDWIS and UCMR5.

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

190
People served: 100
EPA violations: 29
Health-based: Untested
UCMR5 result

The verdict

EPA records 100 drinking-water violations at Blackwell Civilian Consvtn Ctr, 29% of them health-based - above the Wisconsin per-system average.

100
Total EPA violations on record: 29%
Health-based (MCL / treatment failure): 190
People served by this system: N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Blackwell Civilian Consvtn Ctr

Blackwell Civilian Consvtn Ctr is a federal-owned community water system that delivers drinking water to 190 residents in Laona, Wisconsin (Forest County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 100 total violations for this system , of which 29 (29%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 70 monitoring and reporting violations are on file. The most recent violation on record dates to 2022.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 25 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%).

Blackwell Civilian Consvtn Ctr's 100 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

190

Total Violations

100

Health-Based Violations

Water Source

Groundwater

System Details

System Type: Community
Owner Type: Federal
Connections: 1
County: Forest
School/Daycare: No
MCL Violations: 25
Monitoring Violations: 70
Treatment Tech Violations: 4

Violation History

Contaminant violations recorded by EPA.

Contaminant	Category	Count	Latest
Coliform (TCR)	MCL	25	2002
Coliform (TCR)	MR	13	2002
Lead and Copper Rule	MR	4	2015
Stage 1 Disinfectants and Disinfection Byproducts Rule	TT	4	2022
Total Haloacetic Acids (HAA5)	MR	4	2020
TTHM	MR	4	2020
1,2-Dichloroethane	MR	2	1994
Trichloroethylene	MR	2	1994
Ethylbenzene	MR	2	1994
Toluene	MR	2	1994
p-Dichlorobenzene	MR	2	1994
Gross Alpha, Excl. Radon and U	MR	2	1994
o-Dichlorobenzene	MR	2	1994
1,1-Dichloroethylene	MR	2	1994
1,1,1-Trichloroethane	MR	2	1994
Carbon tetrachloride	MR	2	1994
1,2-Dichloropropane	MR	2	1994
CHLOROBENZENE	MR	2	1994
Vinyl chloride	MR	2	1994
1,1,2-Trichloroethane	MR	2	1994
DICHLOROMETHANE	MR	2	1994
1,2,4-Trichlorobenzene	MR	2	1994
Benzene	MR	2	1994
cis-1,2-Dichloroethylene	MR	2	1994
Xylenes, Total	MR	2	1994
Tetrachloroethylene	MR	2	1994
trans-1,2-Dichloroethylene	MR	2	1994
Styrene	MR	2	1994
Nitrate	MR	1	1993

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 Blackwell Civilian Consvtn Ctr.

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 WI7210112 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 Blackwell Civilian Consvtn Ctr 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
2022	Stage 1 Disinfectants and Disinfection Byproducts Rule	TT	4	SDWIS / WI7210112 / 0400
2020	Total Haloacetic Acids (HAA5)	MR	4	SDWIS / WI7210112 / 2456
2020	TTHM	MR	4	SDWIS / WI7210112 / 2950
2015	Lead and Copper Rule	MR	4	SDWIS / WI7210112 / 5000
2002	Coliform (TCR)	MCL	25	SDWIS / WI7210112 / 3100
2002	Coliform (TCR)	MR	13	SDWIS / WI7210112 / 3100
1994	1,2-Dichloroethane	MR	2	SDWIS / WI7210112 / 2980
1994	Trichloroethylene	MR	2	SDWIS / WI7210112 / 2984
1994	Ethylbenzene	MR	2	SDWIS / WI7210112 / 2992
1994	Toluene	MR	2	SDWIS / WI7210112 / 2991
1994	p-Dichlorobenzene	MR	2	SDWIS / WI7210112 / 2969
1994	Gross Alpha, Excl. Radon and U	MR	2	SDWIS / WI7210112 / 4000
1994	o-Dichlorobenzene	MR	2	SDWIS / WI7210112 / 2968
1994	1,1-Dichloroethylene	MR	2	SDWIS / WI7210112 / 2977
1994	1,1,1-Trichloroethane	MR	2	SDWIS / WI7210112 / 2981

How Blackwell Civilian Consvtn Ctr Compares

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

Metric	Blackwell Civilian Consvtn Ctr	Wisconsin avg	Federal benchmark
Total violations	100	26	SDWA compliance, any non-zero count is a recorded breach
Health-based violations	29	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	190	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 Blackwell Civilian Consvtn Ctr water safe to drink? ▼

Blackwell Civilian Consvtn Ctr (PWS ID: WI7210112) has 100 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 190 people using Groundwater sources.

How many people does Blackwell Civilian Consvtn Ctr serve? ▼

Blackwell Civilian Consvtn Ctr serves 190 people in Laona, Wisconsin. It is a Federal-owned system using Groundwater water sources with 1 service connections.

What type of violations does Blackwell Civilian Consvtn Ctr have? ▼

Blackwell Civilian Consvtn Ctr has 100 total violations: 29 health-based violations (MCL exceedances or treatment failures), 70 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Has PFAS been detected in Blackwell Civilian Consvtn Ctr water? ▼

No PFAS testing data is available for Blackwell Civilian Consvtn Ctr under the EPA's UCMR5 monitoring program.

What water source does Blackwell Civilian Consvtn Ctr use? ▼

Blackwell Civilian Consvtn Ctr 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.