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GUERNSEY LAKE MOBILE HOME COMMUNITY

PWS ID: MI0040046 · PHOENIX, Michigan 85018

GUERNSEY LAKE MOBILE HOME COMMUNITY serves 100 people in PHOENIX, Michigan using Groundwater water sources. It has 134 recorded EPA violations, including 10 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: GUERNSEY LAKE MOBILE HOME COMMUNITY

GUERNSEY LAKE MOBILE HOME COMMUNITY is a private-owned community water system that delivers drinking water to 100 residents in PHOENIX, Michigan (Barry County) through 40 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 134 total violations for this system , of which 10 (7%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 104 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Revised Total Coliform Rule, recorded in 10 violations (TT, 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 Michigan, EPA tracks 10,959 public water systems serving 9,098,093 people, with 255,201 cumulative violations and 31,467 health-based violations on record. About 86% of systems in the state carry at least one violation, and state-wide the average per system is 23.3 violations. GUERNSEY LAKE MOBILE HOME COMMUNITY's 134 violations sit above the Michigan average. Statewide, 87 of 318 UCMR5-tested systems have reported PFAS detections (27.4%). 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
100
Total Violations
134
Health-Based Violations
10
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
40
County
Barry
School/Daycare
No
MCL Violations
0
Monitoring Violations
104
Treatment Tech Violations
10

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Revised Total Coliform Rule TT 10 2018
Consumer Confidence Rule Other 9 2024
Revised Total Coliform Rule RPT 6 2024
Revised Total Coliform Rule MON 4 2025
Lead and Copper Rule MR 4 2024
Coliform (TCR) MR 2 1991
cis-1,2-Dichloroethylene MR 2 2022
Xylenes, Total MR 2 2022
DICHLOROMETHANE MR 2 2022
o-Dichlorobenzene MR 2 2022
p-Dichlorobenzene MR 2 2022
Vinyl chloride MR 2 2022
1,1-Dichloroethylene MR 2 2022
trans-1,2-Dichloroethylene MR 2 2022
1,2-Dichloroethane MR 2 2022
1,1,1-Trichloroethane MR 2 2022
Carbon tetrachloride MR 2 2022
1,2-Dichloropropane MR 2 2022
Trichloroethylene MR 2 2022
1,1,2-Trichloroethane MR 2 2022
Tetrachloroethylene MR 2 2022
CHLOROBENZENE MR 2 2022
Benzene MR 2 2022
Toluene MR 2 2022
Styrene MR 2 2022
Endrin MR 2 2022
Methoxychlor MR 2 2022
Di(2-ethylhexyl) adipate MR 2 2022
OXAMYL MR 2 2022
Simazine MR 2 2022

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 GUERNSEY LAKE MOBILE HOME COMMUNITY.

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 MI0040046 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Michigan Drinking Water Authority

Michigan EGLE — Drinking Water and Environmental Health Division is the primacy agency that licenses and inspects GUERNSEY LAKE MOBILE HOME COMMUNITY under EPA-delegated authority.

Open MI regulator portal

Source: Michigan EGLE — Drinking Water and Environmental Health Division

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
2025 Revised Total Coliform Rule MON 4 SDWIS / MI0040046 / 8000
2024 Consumer Confidence Rule Other 9 SDWIS / MI0040046 / 7000
2024 Revised Total Coliform Rule RPT 6 SDWIS / MI0040046 / 8000
2024 Lead and Copper Rule MR 4 SDWIS / MI0040046 / 5000
2022 cis-1,2-Dichloroethylene MR 2 SDWIS / MI0040046 / 2380
2022 Xylenes, Total MR 2 SDWIS / MI0040046 / 2955
2022 DICHLOROMETHANE MR 2 SDWIS / MI0040046 / 2964
2022 o-Dichlorobenzene MR 2 SDWIS / MI0040046 / 2968
2022 p-Dichlorobenzene MR 2 SDWIS / MI0040046 / 2969
2022 Vinyl chloride MR 2 SDWIS / MI0040046 / 2976
2022 1,1-Dichloroethylene MR 2 SDWIS / MI0040046 / 2977
2022 trans-1,2-Dichloroethylene MR 2 SDWIS / MI0040046 / 2979
2022 1,2-Dichloroethane MR 2 SDWIS / MI0040046 / 2980
2022 1,1,1-Trichloroethane MR 2 SDWIS / MI0040046 / 2981
2022 Carbon tetrachloride MR 2 SDWIS / MI0040046 / 2982

How GUERNSEY LAKE MOBILE HOME COMMUNITY Compares

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

Metric GUERNSEY LAKE MOBILE HOME COMMUNITY Michigan avg Federal benchmark
Total violations 134 23.3 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 10 2.9 Indicates a contaminant exceeded a federal MCL
PFAS detection None 27.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 100 830 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 10,959 regulated public water systems in Michigan.

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
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is GUERNSEY LAKE MOBILE HOME COMMUNITY water safe to drink? ▼
GUERNSEY LAKE MOBILE HOME COMMUNITY (PWS ID: MI0040046) has 134 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 100 people using Groundwater sources.
How many people does GUERNSEY LAKE MOBILE HOME COMMUNITY serve? ▼
GUERNSEY LAKE MOBILE HOME COMMUNITY serves 100 people in PHOENIX, Michigan. It is a Private-owned system using Groundwater water sources with 40 service connections.
What type of violations does GUERNSEY LAKE MOBILE HOME COMMUNITY have? ▼
GUERNSEY LAKE MOBILE HOME COMMUNITY has 134 total violations: 10 health-based violations (MCL exceedances or treatment failures), 104 monitoring/reporting violations, and 10 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in GUERNSEY LAKE MOBILE HOME COMMUNITY water? ▼
No PFAS testing data is available for GUERNSEY LAKE MOBILE HOME COMMUNITY under the EPA's UCMR5 monitoring program.
What water source does GUERNSEY LAKE MOBILE HOME COMMUNITY use? ▼
GUERNSEY LAKE MOBILE HOME COMMUNITY 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.

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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.

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