Water Quality Report

Union Lake, MI (48387): No EPA Water System

No EPA-registered water system mapped - county-level context only

EPA records for the water systems mapped to 48387 in Union Lake, MI do not contain a complete violation count and source window. ZipCheckup does not infer a clean record from missing or partial data.

Data source: U.S. Environmental Protection Agency (EPA) SDWIS

Based on EPA Drinking Water FEMA Flood Data U.S. Census CDC Energy Information Admin. USGS Water Data & 9 more federal sources
Latest air quality, EPA records and weather alerts Current data temporarily unavailable
Current EPA violation data unavailable
Water records and current conditions
Current EPA violation data unavailable
Safety Score N/A
Water Quality N/A
Lead Risk N/A
NFIP Claim History Claim records 1 claim
Data confidence: High (direct measurement) Medium (sampled / sub-geography) Low (modeled / inferred) Methodology →

At a Glance

  • Radon EPA Zone 2 - county-level radon potential, not a home measurement.
  • Flood 1 cumulative NFIP claim record. Claim evidence is historical, not current map coverage.
Report data assembled: Jul 27, 2026 EPA water-system identity: source date or period is not present in ZipCheckup's accepted source record EPA violation history: source date or period is not present in ZipCheckup's accepted source record Lead, copper and UCMR measurements: source date or period is not present in ZipCheckup's accepted source record
1
Water System
0
People Served
0
Health Violations (since 2021)
N/A
Water Source
Zone 2
County Radon Potential · Moderate

Get updates when new water-quality data is available for your area

Free alerts when new EPA data affects ZIP code 48387. No spam - just safety updates.

Unsubscribe anytime. We only send updates when your safety score changes. See our Privacy Policy.

Score Breakdown

Overall Home Safety Score: Score unavailable

Required evidence is missing. Missing values remain unknown and are not imputed or renormalized.

Canonical components

EPA water compliance
Unknown
Evidence missing
PFAS MCL screen
Unknown
Evidence missing
EPA radon zone
50/100
Observed
Annual EPA AirData AQI
100/100
Observed

Required domains

Drinking water
Unknown
Indoor environment
50/100
Outdoor environment
100/100

Coverage: 2 of 4 components and 2 of 3 domains observed.

Model 4.0.0; series home-safety-v4-cross-vertical.

Safety & Health (3) MODERATE

Other Water Quality Reports in Michigan

Nearby Water Quality Reports

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). No EPA-registered water system is mapped to ZIP 48387. To look up the system serving a specific address, use the state SDWIS search tool.

4 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.

📊 EPA Safe Drinking Water · View source →
Environmental Hazards (10) MODERATE
Home & Infrastructure (2) OK
Cost & Community (6) OK

CPSC product recall notices

These national notices are not matched to this ZIP code or water system.

View all recalls →

📊 CPSC · View source →

Protect Your Home in Union Lake

Based on local data for ZIP 48387, these services may benefit homeowners in your area.

Based on local data for your area. Use the tools below to explore your options.

Home & Flood Insurance

The ZIP code for this report in Union Lake has 1 FEMA flood claim on record. Standard homeowner policies don't cover flood damage - make sure you're protected.

Typical cost: Flood insurance: premiums vary by property and flood zone; request a quote

Check Your Flood Zone (Free)

FEMA flood map lookup - see if your property is in a flood zone

Free tip: Check your FEMA flood zone at msc.fema.gov (free lookup)

Service recommendations are based on public data for this ZIP code (FEMA, Census ACS, NWS). Actual needs vary by property. By calling, your information will be shared with an independent service provider. ZipCheckup may receive compensation. Cost estimates are approximate and vary by property, condition, and contractor.

Frequently Asked Questions

Is the tap water in 48387 safe to drink?

No EPA-registered public water system is mapped to ZIP 48387, so there is no federal water quality record to assess. Residents in this area typically rely on private wells or very small systems below EPA reporting thresholds. If you rely on a private well, the CDC recommends testing it at least once a year. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.

Where does 48387's water come from?

There is no community water system directly registered with the EPA for ZIP 48387. Most residents rely on private wells drawing from groundwater, or are served by a neighboring district that isn't cross-referenced to this ZIP in federal data. Check with your local county health department to confirm your source.

How can I get my water tested in Union Lake?

Since no EPA-registered water utility is mapped to ZIP 48387, contact your local county health department or hire a certified lab for independent home water testing. The EPA recommends testing private wells at least once a year.

What is the radon risk for 48387?

48387 is mapped to a county in EPA Radon Zone 2 (moderate county-level radon potential; EPA recommends testing every home), located in Oakland County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.

What does the NFIP claim history show for ZIP 48387?

FEMA records contain 1 flood insurance claim filed in ZIP code 48387; the recorded rated-zone value (the most frequent one if there are several claims) is C, which is claims evidence and may differ from the current FEMA map zone for a property. Claim records do not establish current property risk. Review FEMA's map for the specific property.

How to cite this page

APA ZipCheckup. (2026). Union Lake, MI (48387): No EPA Water System. https://zipcheckup.com/report/48387/
BibTeX
@misc{zipcheckup-report-48387,
  author = {{ZipCheckup}},
  title  = {{Union Lake, MI (48387): No EPA Water System}},
  year   = {2026},
  url    = {https://zipcheckup.com/report/48387/}
}

Page version: October 2026.

Nearby ZIP Code Reports

Water quality comparison for ZIP codes near 48387

ZIP Code City, State Distance Grade Violations
48386 White Lake, MI 2.3 mi B 5
48327 Waterford, MI 2.8 mi B 5
48382 Commerce Township, MI 3.5 mi B 6
48324 West Bloomfield, MI 3.5 mi N/A 8
48390 Walled Lake, MI 4.2 mi B 7
48321 Auburn Hills, MI 4.4 mi N/A 0
48325 West Bloomfield, MI 4.4 mi N/A 0
48347 Clarkston, MI 4.4 mi N/A 0
48323 West Bloomfield, MI 4.7 mi B 4
48328 Waterford, MI 5.1 mi B 3

Overall safety breakdown

Home Safety Score →

Find the right water filter

Water Filter Matcher →

Compare filters, tests & services

Compare My Options →

Compare with another ZIP

Compare Tool →
Coverage: 10/17 risk factors Data sources →
Get alerts for 48387