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Community Water System · PWS WI6560122

Houlton MHP LLC

Orlando, Wisconsin 32801 - drinking water served from groundwater sources to 170 people, tracked in EPA SDWIS and UCMR5.

170
People served
158
EPA violations
26
Health-based
Untested
UCMR5 result

The verdict

EPA records 158 drinking-water violations at Houlton MHP LLC, 16% of them health-based - above the Wisconsin per-system average.

158
Total EPA violations on record
16%
Health-based (MCL / treatment failure)
170
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Houlton MHP LLC

Houlton MHP LLC is a private-owned community water system that delivers drinking water to 170 residents in Orlando, Wisconsin (St. Croix County) through 60 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 158 total violations for this system , of which 26 (16%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 128 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 23 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%).

Houlton MHP LLC's 158 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
170
Total Violations
158
Health-Based Violations
26
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
60
County
St. Croix
School/Daycare
No
MCL Violations
26
Monitoring Violations
128
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 23 2015
Coliform (TCR) MR 12 2005
Gross Alpha, Excl. Radon and U MR 4 2021
Radium-226 MR 4 2021
Tetrachloroethylene MR 4 2021
1,1,2-Trichloroethane MR 4 2021
1,2,4-Trichlorobenzene MR 4 2021
1,2-Dichloropropane MR 4 2021
Carbon tetrachloride MR 4 2021
1,1,1-Trichloroethane MR 4 2021
1,2-Dichloroethane MR 4 2021
trans-1,2-Dichloroethylene MR 4 2021
1,1-Dichloroethylene MR 4 2021
Vinyl chloride MR 4 2021
p-Dichlorobenzene MR 4 2021
o-Dichlorobenzene MR 4 2021
Xylenes, Total MR 4 2021
cis-1,2-Dichloroethylene MR 4 2021
Styrene MR 4 2021
Trichloroethylene MR 4 2021
E. COLI MR 4 2009
Ethylbenzene MR 4 2021
Combined Uranium MR 4 2021
Toluene MR 4 2021
Combined Radium (-226 and -228) MR 4 2021
Nitrite MR 4 2021
Radium-228 MR 4 2021
Benzene MR 4 2021
CHLOROBENZENE MR 4 2021
Revised Total Coliform Rule MON 4 2023

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 Houlton MHP LLC.

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 WI6560122 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 Houlton MHP LLC 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
2023 Revised Total Coliform Rule MON 4 SDWIS / WI6560122 / 8000
2021 Gross Alpha, Excl. Radon and U MR 4 SDWIS / WI6560122 / 4000
2021 Radium-226 MR 4 SDWIS / WI6560122 / 4020
2021 Tetrachloroethylene MR 4 SDWIS / WI6560122 / 2987
2021 1,1,2-Trichloroethane MR 4 SDWIS / WI6560122 / 2985
2021 1,2,4-Trichlorobenzene MR 4 SDWIS / WI6560122 / 2378
2021 1,2-Dichloropropane MR 4 SDWIS / WI6560122 / 2983
2021 Carbon tetrachloride MR 4 SDWIS / WI6560122 / 2982
2021 1,1,1-Trichloroethane MR 4 SDWIS / WI6560122 / 2981
2021 1,2-Dichloroethane MR 4 SDWIS / WI6560122 / 2980
2021 trans-1,2-Dichloroethylene MR 4 SDWIS / WI6560122 / 2979
2021 1,1-Dichloroethylene MR 4 SDWIS / WI6560122 / 2977
2021 Vinyl chloride MR 4 SDWIS / WI6560122 / 2976
2021 p-Dichlorobenzene MR 4 SDWIS / WI6560122 / 2969
2021 o-Dichlorobenzene MR 4 SDWIS / WI6560122 / 2968

How Houlton MHP LLC Compares

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

Metric Houlton MHP LLC Wisconsin avg Federal benchmark
Total violations 158 26 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 26 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 170 467 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 Houlton MHP LLC water safe to drink? ▼
Houlton MHP LLC (PWS ID: WI6560122) has 158 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 170 people using Groundwater sources.
How many people does Houlton MHP LLC serve? ▼
Houlton MHP LLC serves 170 people in Orlando, Wisconsin. It is a Private-owned system using Groundwater water sources with 60 service connections.
What type of violations does Houlton MHP LLC have? ▼
Houlton MHP LLC has 158 total violations: 26 health-based violations (MCL exceedances or treatment failures), 128 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Houlton MHP LLC water? ▼
No PFAS testing data is available for Houlton MHP LLC under the EPA's UCMR5 monitoring program.
What water source does Houlton MHP LLC use? ▼
Houlton MHP LLC 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.