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Community Water System · PWS WI6560143

Rolling Hills MHP LLC

Minneapolis, Wisconsin 55416 - drinking water served from groundwater sources to 90 people, tracked in EPA SDWIS and UCMR5.

90
People served
684
EPA violations
11
Health-based
Untested
UCMR5 result

The verdict

EPA records 684 drinking-water violations at Rolling Hills MHP LLC, 2% of them health-based - above the Wisconsin per-system average.

684
Total EPA violations on record
2%
Health-based (MCL / treatment failure)
90
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Rolling Hills MHP LLC

Rolling Hills MHP LLC is a private-owned community water system that delivers drinking water to 90 residents in Minneapolis, Wisconsin (St. Croix County) through 35 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 684 total violations for this system , of which 11 (2%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 604 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 128 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, 51 of 202 UCMR5-tested systems have reported PFAS detections (25.2%).

Rolling Hills MHP LLC's 684 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
90
Total Violations
684
Health-Based Violations
11
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
35
County
St. Croix
School/Daycare
No
MCL Violations
11
Monitoring Violations
604
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 128 2011
Public Notice Other 46 2011
Nitrate MR 23 2010
Consumer Confidence Rule Other 19 2016
Lead and Copper Rule MR 14 2021
Arsenic MR 11 2009
Coliform (TCR) MCL 10 2005
1,2,4-Trichlorobenzene MR 10 2006
Xylenes, Total MR 10 2006
DICHLOROMETHANE MR 10 2006
1,1-Dichloroethylene MR 10 2006
1,1,1-Trichloroethane MR 10 2006
1,2-Dichloropropane MR 10 2006
Trichloroethylene MR 10 2006
1,1,2-Trichloroethane MR 10 2006
Tetrachloroethylene MR 10 2006
Gross Alpha, Excl. Radon and U MR 10 2009
cis-1,2-Dichloroethylene MR 10 2006
Benzene MR 10 2006
p-Dichlorobenzene MR 10 2006
trans-1,2-Dichloroethylene MR 10 2006
Carbon tetrachloride MR 10 2006
Toluene MR 10 2006
Ethylbenzene MR 10 2006
1,2-Dichloroethane MR 10 2006
CHLOROBENZENE MR 10 2006
Vinyl chloride MR 10 2006
o-Dichlorobenzene MR 10 2006
Styrene MR 10 2006
Atrazine MR 9 2006

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 Rolling Hills 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 WI6560143 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 Rolling Hills 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
2021 Lead and Copper Rule MR 14 SDWIS / WI6560143 / 5000
2016 Consumer Confidence Rule Other 19 SDWIS / WI6560143 / 7000
2011 Coliform (TCR) MR 128 SDWIS / WI6560143 / 3100
2011 Public Notice Other 46 SDWIS / WI6560143 / 7500
2010 Nitrate MR 23 SDWIS / WI6560143 / 1040
2009 Arsenic MR 11 SDWIS / WI6560143 / 1005
2009 Gross Alpha, Excl. Radon and U MR 10 SDWIS / WI6560143 / 4000
2009 Combined Radium (-226 and -228) MR 7 SDWIS / WI6560143 / 4010
2009 Radium-228 MR 7 SDWIS / WI6560143 / 4030
2009 Cadmium MR 5 SDWIS / WI6560143 / 1015
2009 Mercury MR 5 SDWIS / WI6560143 / 1035
2009 Nitrite MR 5 SDWIS / WI6560143 / 1041
2009 Fluoride MR 5 SDWIS / WI6560143 / 1025
2009 Barium MR 5 SDWIS / WI6560143 / 1010
2009 Selenium MR 5 SDWIS / WI6560143 / 1045

How Rolling Hills MHP LLC Compares

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

Metric Rolling Hills MHP LLC Wisconsin avg Federal benchmark
Total violations 684 26 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 11 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 90 467 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 Rolling Hills MHP LLC water safe to drink? ▼
Rolling Hills MHP LLC (PWS ID: WI6560143) has 684 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 90 people using Groundwater sources.
How many people does Rolling Hills MHP LLC serve? ▼
Rolling Hills MHP LLC serves 90 people in Minneapolis, Wisconsin. It is a Private-owned system using Groundwater water sources with 35 service connections.
What type of violations does Rolling Hills MHP LLC have? ▼
Rolling Hills MHP LLC has 684 total violations: 11 health-based violations (MCL exceedances or treatment failures), 604 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Rolling Hills MHP LLC water? ▼
No PFAS testing data is available for Rolling Hills MHP LLC under the EPA's UCMR5 monitoring program.
What water source does Rolling Hills MHP LLC use? ▼
Rolling Hills 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.