Public water system · WI6180285
ActiveHillcrest Estates MHP
At a glance
Hillcrest Estates MHP (PWSID WI6180285) is an active community water system in Eau Claire County, Wisconsin. It reports serving 850 people through 314 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in December 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
850
Service connections
314
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Hillcrest Estates MHP compare with other water systems in Eau Claire County?
By EPA's size categories, Hillcrest Estates MHP is a small system (501 to 3,300 people). Eau Claire County has 111 active public water systems, and Hillcrest Estates MHP is the 5th-largest of them by population served. Its population served is roughly in line with the county average of 834 people per system, and accounts for 0.9% of the 92,606 people reported by systems filed under the county. Across Wisconsin, the 11,056 active systems average 469 people each. Nationally, the average active community water system reports serving 6,703 people, so Hillcrest Estates MHP is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Wisconsin has 1,053 active community water systems, 9.5% of the state's 11,056 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 10,978 Wisconsin systems (99%) list groundwater as their primary source.
Who owns and regulates Hillcrest Estates MHP?
EPA lists Hillcrest Estates MHP as privately owned. The WI state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 90 of the 111 active systems in Eau Claire County (81%) are also privately owned.
Does Hillcrest Estates MHP have drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in December 2023. The violations listed here began between April 1997 and December 2023. By type: 6 monitoring and reporting, 3 required treatment not met, 2 public notice, recordkeeping or other and 1 monitoring. The contaminant or rule involved most often is Lead and Copper Rule (4 of them). EPA lists 9 as resolved, 1 as addressed, 1 as unaddressed and 1 as archived. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed. Addressed means the violation is not resolved or archived and is covered by formal enforcement. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2023-12-31 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Addressed |
| 2022-07-15 | Required treatment not metTreatment Technique, Level 1 Assessment (RTCR) · code 2A | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2022-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2022-01-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2013-10-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2012-04-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2011-10-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2010-12-14 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2010-01-01 | Required treatment not metPublic Education · code 65 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 2003-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2001-03-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1997-04-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Hillcrest Estates MHP: frequently asked questions
Who runs Hillcrest Estates MHP?
Hillcrest Estates MHP (PWSID WI6180285) is a community water system privately owned. It is regulated by the WI state drinking water program.
How many people does Hillcrest Estates MHP serve?
Hillcrest Estates MHP reports serving 850 people through 314 service connections in Eau Claire County, Wisconsin.
Where does Hillcrest Estates MHP get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Hillcrest Estates MHP have any drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in December 2023. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Hillcrest Estates MHP's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in December 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the WI state drinking water program.
Where can I find Hillcrest Estates MHP's water quality report?
As a community water system, Hillcrest Estates MHP must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Eau Claire County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Eau Claire Waterworks | Eau Claire | 70,587 | Community | Groundwater |
| Altoona Waterworks | Eau Claire | 9,627 | Community | Groundwater |
| Augusta Waterworks | Eau Claire | 1,450 | Community | Groundwater |
| Fall Creek Waterworks | Eau Claire | 1,269 | Community | Groundwater |
| Menards Old Mill Center | Eau Claire | 730 | Non-transient non-community | Groundwater |
| Ferguson Orchard-Eau Claire | Eau Claire | 610 | Transient non-community | Groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Hillcrest Estates MHP, PWSID WI6180285, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/hillcrest-estates-mhp-wi6180285 (data as of October 1, 2026).