Water Quality in Bloomfield Hills, MI: 8 Violations — Grade C
Grade C · Score 68/100 · 5 water systems · Updated 2026-05-03
Bloomfield Hills's water has moderate compliance issues. Residents in affected areas should consider filtration.
Data: EPA Safe Drinking Water Information System (SDWIS) Last verified: 2026-05-03
SDWIS records for Bloomfield Hills, MI show 8 EPA violations documented for the local water supply — these span the full range of reportable events from health-based exceedances to monitoring and reporting lapses registered with the federal program.
Water Quality by ZIP Code in Bloomfield Hills
Water quality varies across Bloomfield Hills's 4 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 48304 | B | 77 | 2 | 0 | View report → |
| 48301 | B | 82 | 2 | 0 | View report → |
| 48302 | B | 82 | 2 | 0 | View report → |
| 48303 | B | 82 | 2 | 0 | View report → |
Water Quality Overview
Bloomfield Hills, Michigan receives a water quality grade of C with an overall score of 68 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
The 5 water systems serving Bloomfield Hills have accumulated 8 EPA violations (all monitoring/reporting type). These violations are tracked across 4 ZIP codes serving approximately 8,624 people.
What Grade C Means
A grade of C indicates moderate compliance issues. Bloomfield Hills's water systems have some violations that warrant attention. While the water may still be safe for most people, residents in affected ZIP codes should consider additional testing or filtration.
Lead Levels
The average 90th percentile lead level across Bloomfield Hills water systems is 0.0009 mg/L — within EPA limits. No ZIP codes exceed the EPA lead action level.
With 79% of homes built before 1986, Bloomfield Hills has a higher-than-average risk of lead from older plumbing. Lead solder was banned in 1986, and homes built before this date may have lead in pipes, solder joints, or fixtures.
Radon Risk
Bloomfield Hills is in EPA Radon Zone 1 (High risk). The EPA recommends all homes in Zone 1 areas be tested for radon. Radon is the second leading cause of lung cancer after smoking.
Water Systems Serving Bloomfield Hills
Bloomfield Hills is served by 5 community water systems regulated under the Safe Drinking Water Act. These systems collectively serve approximately 8,624 people across 4 ZIP codes.
Each water system is identified by a Public Water System ID (PWSID) and is required to:
- Test for over 90 regulated contaminants on a regular schedule
- Report results to the EPA and state regulators
- Issue an annual Consumer Confidence Report (CCR) to all customers
- Take corrective action when violations occur
The EPA has taken 40 enforcement actions against water systems serving Bloomfield Hills. Enforcement actions range from informal compliance assistance to formal orders and penalties.
How to Check Your Water in Bloomfield Hills
Enter your ZIP code on ZipCheckup to see your specific water system data, including contaminant levels, violation history, and safety scores
Request your CCR — your water utility must provide an annual Consumer Confidence Report with detailed test results for all monitored contaminants
Get a home test — certified kits cost $20–$50 and test for lead, bacteria, and common contaminants. Professional lab tests ($150–$400) cover a broader panel
Consider filtration — NSF-certified filters can remove specific contaminants. Reverse osmosis removes the broadest range; activated carbon is effective for chlorine and many organics
Check for advisories — monitor your local utility website and local news for boil water advisories or system alerts
Contaminants Detected in Bloomfield Hills Water Systems
The following contaminants have been detected or caused violations across Bloomfield Hills's water systems:
| Contaminant | Category | MCL | Violations | ZIPs Affected | Health-Based |
|---|---|---|---|---|---|
| Surface Water Treatment Rule | Treatment Technique | N/A | 8 | 4 | No |
MCL = Maximum Contaminant Level (EPA enforceable standard). Health-based violations indicate levels that may pose direct health risks.
EPA Enforcement History
The EPA and state regulators have taken 10 enforcement actions against water systems serving Bloomfield Hills. Recent actions:
| Date | Action Type |
|---|---|
| 2025-06-16 | State Order Extension |
| 2025-06-16 | State Order Action |
| 2024-12-11 | State Informal Action |
| 2024-12-11 | State Informal Enforcement |
| 2024-12-04 | State Order Extension |
| 2024-12-02 | State Order Extension |
| 2024-11-13 | State Informal Action |
| 2024-03-25 | State Order Extension |
| 2023-11-02 | State Informal Action |
| 2023-10-19 | State Informal Action |
Enforcement actions range from informal compliance assistance to formal orders and penalties. The most recent action was on 2025-06-16.
Bloomfield Hills vs. Nearby Michigan Cities
How Bloomfield Hills's water quality compares to similar cities in Michigan:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Bloomfield Hills | C | 8 | 5 | 8,624 |
| Menominee | B | 2 | 1 | 8,583 |
| Eagle | C | 0 | 1 | 8,701 |
| Grand Ledge | B | 2 | 1 | 8,701 |
Water Quality by ZIP Code in Bloomfield Hills
Water quality varies across Bloomfield Hills's ZIP codes. The table below shows the worst-scoring and best-scoring areas:
| ZIP Code | Score | Grade | Violations | Health-Based |
|---|---|---|---|---|
| 48304 | 77 | B | 2 | 0 |
| 48301 | 82 | B | 2 | 0 |
| 48302 | 82 | B | 2 | 0 |
| 48303 | 82 | B | 2 | 0 |
Common Questions About Bloomfield Hills Water
These are the most common questions residents search for about water quality in Bloomfield Hills, Michigan:
Is Bloomfield Hills water hard or soft? Water hardness varies by source. Bloomfield Hills's 5 water systems use multiple sources. Check your ZIP code report for specific hardness data.
Can I drink Bloomfield Hills tap water? Bloomfield Hills's water receives a grade of C (68/100). No health-based violations have been recorded, but home testing is always recommended.
What is the best water filter for Bloomfield Hills? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
Bloomfield Hills vs. Michigan Average
Understanding how Bloomfield Hills compares to the broader Michigan average helps contextualize your local water quality. Factors like water source, treatment methods, and infrastructure age all contribute to differences between cities in the same state.
To see how individual neighborhoods compare, check the ZIP code reports below — water quality can vary significantly even within Bloomfield Hills.
ZIP Codes in Bloomfield Hills
Bloomfield Hills spans 4 ZIP codes. The ZIP with the lowest water quality score is 48301. Each ZIP code has its own water quality profile based on the specific water system serving that area. Check each ZIP code for detailed contaminant data, violation history, and system information.
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
- Enforcement: EPA ECHO database
- Filter recommendations: NSF/ANSI certified products
Updated daily.