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GM PROVING GROUNDS WELL 5, 7, 8, 9

PWS ID: MI2141963 · MILFORD, Michigan 48380

GM PROVING GROUNDS WELL 5, 7, 8, 9 serves 5,500 people in MILFORD, Michigan using Groundwater water sources. It has 11 recorded EPA violations, including 10 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (1 compound found).

Water Quality Snapshot: GM PROVING GROUNDS WELL 5, 7, 8, 9

GM PROVING GROUNDS WELL 5, 7, 8, 9 is a private-owned non-transient non-community water system that delivers drinking water to 5,500 residents in MILFORD, Michigan (Oakland County) through 4 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 11 total violations for this system , of which 10 (91%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 1 monitoring and reporting violations are on file. The most recent violation on record dates to 2012.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 10 violations (MCL, health-based). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 11 ppt. PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

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. GM PROVING GROUNDS WELL 5, 7, 8, 9's 11 violations sit below 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.

PFAS Detected

1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
5,500
Total Violations
11
Health-Based Violations
10
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
4
County
Oakland
School/Daycare
No
MCL Violations
10
Monitoring Violations
1
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 10 2012
Lead and Copper Rule MR 1 1994

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 3 of 240 samples detected PFAS.

Contaminant Date Result MRL Status
PFMPA 9/26/2023 <0.004 µg/L 0.004 µg/L Not Detected
HFPO-DA 9/26/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 9/26/2023 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 9/26/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 9/26/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFPeA 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 9/26/2023 <0.004 µg/L 0.004 µg/L Not Detected
ADONA 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
lithium 9/26/2023 11.0000 µg/L 9 µg/L Detected
PFMBA 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 9/26/2023 <0.02 µg/L 0.02 µg/L Not Detected
NMeFOSAA 9/26/2023 <0.006 µg/L 0.006 µg/L Not Detected
PFTrDA 9/26/2023 <0.007 µg/L 0.007 µg/L Not Detected
9Cl-PF3ONS 9/26/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFBS 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
NEtFOSAA 9/26/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHxS 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 9/26/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 9/26/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 9/26/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 9/26/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 9/26/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFTA 9/26/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFOA 9/26/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFMPA 9/26/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 9/26/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFTA 9/26/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFHpS 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 9/26/2023 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 9/26/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 9/26/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 9/26/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 9/26/2023 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 9/26/2023 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 9/26/2023 <0.007 µg/L 0.007 µg/L Not Detected
PFMBA 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 9/26/2023 <0.002 µg/L 0.002 µg/L Not Detected
NMeFOSAA 9/26/2023 <0.006 µg/L 0.006 µg/L Not Detected

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 GM PROVING GROUNDS WELL 5, 7, 8, 9.

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 MI2141963 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 GM PROVING GROUNDS WELL 5, 7, 8, 9 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
2012 Coliform (TCR) MCL 10 SDWIS / MI2141963 / 3100
1994 Lead and Copper Rule MR 1 SDWIS / MI2141963 / 5000

How GM PROVING GROUNDS WELL 5, 7, 8, 9 Compares

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

Metric GM PROVING GROUNDS WELL 5, 7, 8, 9 Michigan avg Federal benchmark
Total violations 11 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 1 compound 27.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 5,500 830 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 GM PROVING GROUNDS WELL 5, 7, 8, 9 water safe to drink? ▼
GM PROVING GROUNDS WELL 5, 7, 8, 9 (PWS ID: MI2141963) has 11 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 5,500 people using Groundwater sources.
How many people does GM PROVING GROUNDS WELL 5, 7, 8, 9 serve? ▼
GM PROVING GROUNDS WELL 5, 7, 8, 9 serves 5,500 people in MILFORD, Michigan. It is a Private-owned system using Groundwater water sources with 4 service connections.
What type of violations does GM PROVING GROUNDS WELL 5, 7, 8, 9 have? ▼
GM PROVING GROUNDS WELL 5, 7, 8, 9 has 11 total violations: 10 health-based violations (MCL exceedances or treatment failures), 1 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in GM PROVING GROUNDS WELL 5, 7, 8, 9 water? ▼
Yes. UCMR5 testing detected 1 PFAS compound in GM PROVING GROUNDS WELL 5, 7, 8, 9's water supply: lithium. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does GM PROVING GROUNDS WELL 5, 7, 8, 9 use? ▼
GM PROVING GROUNDS WELL 5, 7, 8, 9 uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
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. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial