EPA data as of Oct 2026 · page updated 2026-10-29

Home hazard report for 48708 — Bay City, MI

ZIP 48708 is served by City of Bay City: 1 violation since 2016, latest lead result 8 ppb, PFAS not detected. Bay County is in EPA radon zone 3.

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Where ZIP 48708 is

Dashed: ZIP area · blue: utility service area · scroll or pinch to zoom
ZIP code areaZIP center Water utility service area PFOA/PFOS ≥ 4 ppt Lead > 15 ppb 5+ violations Superfund site (active) proposed cleaned up Circles: other water systems flagged nearby; size = people served. Tap any symbol for details.

Drinking water: City of Bay City

EPA IDMI0000470
People served32,255
Sourcesurface water (rivers, lakes)
Connections14,756

Health-based violations

Contaminant or ruleHealth-based violations since 2016
Lead and Copper Rule1

A health-based violation means a contaminant exceeded its legal limit (MCL) or a required treatment technique was not met, as reported by the state to EPA’s SDWIS. All are listed as resolved or archived; the latest began Jan 2024.

Full record for City of Bay City →

Other systems overlapping this ZIP: Bangor Township, Hampton Township.

Lead

Jan 20268 ppb
Jan 202510 ppb
Jul 202411 ppb
Jan 20238 ppb
Jan 20227 ppb
Jan 20219 ppb
Jan 20203 ppb
Jul 201912 ppb

90th-percentile lead per sampling round (90% of the homes sampled were at or below this level). Black line: EPA’s 15 ppb action level; under the Lead and Copper Rule Improvements the action level becomes 10 ppb from 2027.

PFAS (“forever chemicals”)

CompoundHighest resultSamples with detectionEPA limit
HFPO-DA (GenX)not detected0 of 4—
PFHxAnot detected0 of 4—
PFOSnot detected0 of 44 ppt MCL
PFDAnot detected0 of 4—
PFOAnot detected0 of 44 ppt MCL
PFBAnot detected0 of 4—
PFNAnot detected0 of 4—
PFHxSnot detected0 of 4—
PFHpAnot detected0 of 4—
PFBSnot detected0 of 4—
PFPeAnot detected0 of 4—

EPA Fifth Unregulated Contaminant Monitoring Rule (UCMR 5), samples 2023–2025; ppt = parts per trillion (ng/L). The 4.0 ppt maximum contaminant levels for PFOA and PFOS were set by EPA in 2024; water systems have until the end of the decade to comply.

Radon in Bay County

EPA radon zone 3 — low potential. Predicted average under 2 pCi/L — but any home can have high radon, so EPA still recommends a test.

Radon is a colorless, odorless radioactive gas from soil and rock, and the leading cause of lung cancer among non-smokers. EPA recommends fixing a home at 4 pCi/L or above and considering it from 2 pCi/L. A short-term test kit costs about $15–30. How radon zones work →

Natural hazard risk

FEMA rates the overall natural-hazard risk of this neighborhood (census tract) as Relatively Low, with relatively low social vulnerability and very high community resilience.

Winter weatherRelatively High
Cold waveRelatively Moderate
Riverine floodingRelatively Moderate
Strong windRelatively Moderate
TornadoRelatively Moderate
HailRelatively Low
Heat waveRelatively Low
Ice stormRelatively Low
EarthquakeVery Low
HurricaneVery Low
LandslideVery Low
LightningVery Low
WildfireVery Low

FEMA National Risk Index (December 2025): expected annual losses from each hazard combined with social vulnerability and community resilience, rated relative to all U.S. census tracts. Hazards not listed are not applicable here. It describes the area, not a single building; flood insurance maps (FEMA FIRMs) decide flood-insurance requirements.

Live conditions: river gauges and flood levels · tornado warnings · wildfire detections · earthquakes — our sister maps, updated from NOAA, USGS and NASA every few minutes.

Superfund sites nearby

SiteStatusDistance
Bay City Middlegrounds
Bay City, Michigan · EPA ID MID981092935
Proposed3.1 mi

EPA Superfund National Priorities List (NPL): the country’s most serious known hazardous-waste sites, each with an EPA cleanup record (linked). Distance is measured from the ZIP center to the site’s reference point; being near a site does not by itself mean exposure — EPA site pages describe what was found and how it is being cleaned up.

What this is — and isn’t. These are records your water utility and state reported to the EPA, and the EPA’s radon map for your county. They describe the system and the area, not the water from your own tap or the air in your home. For that, read your utility’s annual Consumer Confidence Report and test: lead and radon tests are inexpensive.

Questions about 48708

Who supplies drinking water to ZIP 48708?

City of Bay City (EPA ID MI0000470), a surface water (rivers, lakes) system serving about 32,255 people.

Is there lead in Bay City, MI tap water?

The utility’s latest 90th-percentile lead result (Jan 2026) was 8 ppb; EPA’s action level is 15 ppb, falling to 10 ppb from 2027. Lead mostly comes from service lines and home plumbing, so the only way to know your tap is to test it.

Does Bay City, MI water have PFAS?

None of the tested PFAS were found above EPA’s reporting limits in 2023–2025.

Has the water system in 48708 had violations?

Health-based violations since 2016: Lead and Copper Rule. All are listed as resolved.

What natural hazards affect ZIP 48708?

FEMA’s National Risk Index rates the overall natural-hazard risk here as Relatively Low; the highest-rated hazards are winter weather (relatively high), cold wave (relatively moderate), riverine flooding (relatively moderate).

Are there Superfund sites near 48708?

The nearest active Superfund site is 3.1 miles away. Sites within 10 miles: Bay City Middlegrounds (3.1 mi, Proposed).

Is radon a problem in Bay County?

Bay County is in EPA radon zone 3 (low potential). Predicted average under 2 pCi/L — but any home can have high radon, so EPA still recommends a test.