ZipCheckup grade for 48377: B.

This ZIP has a few items worth a quick check.

Water Quality Report
B 83

Novi, MI (48377): 1 Violation Recorded for Mapped Water Systems - 83/100

EPA data combined for 5 water systems mapped to this ZIP (largest mapped system: City of Novi)

EPA records for the water systems mapped to 48377 in Novi, MI contain 1 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 0 are marked health-based.

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
B 83/100
Water Quality Concerns 1 non-health-based violation record in EPA data
Lead Risk Below action level Below the reporting limit, 90th percentile, sample period ending 2025-12-31
NFIP Claim History N/A
Data confidence: High (direct measurement) Medium (sampled / sub-geography) Low (modeled / inferred) Methodology →

At a Glance

  • Water EPA records for water systems mapped to this ZIP show 1 violation (non-health) (since 2021).
  • Lead The reported 90th-percentile lead result is below the laboratory reporting limit, not a measured zero; EPA's health goal for lead is zero.
  • Radon EPA Zone 2 - county-level radon potential, not a home measurement.
Contaminant Summary
Violations on record (not health-based)
1 violation
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: more than two update cycles old Lead, copper and UCMR measurements: source date or period is not present in ZipCheckup's accepted source record Consumer Confidence Report: source date or period is not present in ZipCheckup's accepted source record
B
ZIP-level Home Safety model score: 83 / 100
Home Safety Score higher than 67% of ZIP codes nationwide
5
Water Systems
56,780
People Served
0
Health Violations (since 2021)
Surface water
Water Source
Zone 2
County Radon Potential · Moderate
$332K
Median Home Value85% above state median ($179K)

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Score Breakdown

Overall Home Safety Score: 83/100

This is the published model score. Component and domain values are shown independently; they are not added together on this page.

Canonical components

EPA water compliance
98/100
Observed
PFAS MCL screen
100/100
Observed
EPA radon zone
50/100
Observed
Annual EPA AirData AQI
100/100
Observed

Required domains

Drinking water
99/100
Indoor environment
50/100
Outdoor environment
100/100

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

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

Safety & Health (7) MODERATE

Your Water System

ZIP code 48377 in Novi, Michigan is mapped to the water system City of Novi (EPA ID: MI0004870). This system provides water to approximately 56,780 people from surface water sources.

There are 5 community water systems serving this area.

Water Systems Serving This Area

System Name EPA ID Population Source
City of Novi, MI0004870 56,780 Surface water
Northville Township MI0004845 32,103 Surface water
Commerce Township MI0001573 19,811 Surface water
City of Farmington Hills, MI0002240 56,984 Surface water
City of Walled Lake, MI0006875 5,260 Surface water

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). View available EPA compliance records for City of Novi (MI0004870) on EPA.gov.

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 →

UCMR 5 PFAS monitoring: no reportable detections in available records

Available federal UCMR5 records for water systems mapped to ZIP code 48377 show no PFAS detections among the compounds tested, at the program's reporting levels.

The EPA Fifth Unregulated Contaminant Monitoring Rule (UCMR5) required community and non-transient non-community water systems serving 3,300 or more people to test for 29 PFAS compounds and lithium between 2023 and 2025. Systems with no detections at the federal minimum reporting level had no results at or above that reporting level.

📊 EPA UCMR5 · View source →
Environmental Hazards (10) MODERATE
Home & Infrastructure (6) OK
Cost & Community (8) OK

CPSC product recall notices

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

View all recalls →

📊 CPSC · View source →

Frequently Asked Questions

Is the tap water in 48377 safe to drink?

EPA SDWIS records 1 violation since 2021 across the water systems mapped to ZIP 48377 (primary system: City of Novi), including 0 health-based. The violation table above shows which system each record belongs to. 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 48377's water come from?

The recorded water source for City of Novi, a system mapped to ZIP code 48377, is Surface water. This system serves approximately 56,780 people.

How does Novi water compare to the national average?

Novi's Home Safety Score ranks better than 67% of U.S. ZIP codes, and lower than 61% of ZIP codes within Michigan.

How can I get my water tested in Novi?

If City of Novi supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.

What is the radon risk for 48377?

48377 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.

How to cite this page

APA ZipCheckup. (2026). Novi, MI (48377): 1 Violation Recorded for Mapped Water Systems - 83/100. https://zipcheckup.com/report/48377/
BibTeX 
@misc{zipcheckup-report-48377,
  author = {{ZipCheckup}},
  title  = {{Novi, MI (48377): 1 Violation Recorded for Mapped Water Systems - 83/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/report/48377/}
}

Page version: October 2026.

Nearby ZIP Code Reports

Water quality comparison for ZIP codes near 48377

ZIP Code City, State Distance Grade Violations
48376 Novi, MI 2.0 mi N/A 0
48391 Walled Lake, MI 2.7 mi N/A 0
48375 Novi, MI 2.9 mi B 0
48374 Novi, MI 2.9 mi B 0
48393 Wixom, MI 3.5 mi B 10
48331 Farmington, MI 3.6 mi B 0
48390 Walled Lake, MI 4.1 mi B 7
48335 Farmington, MI 4.5 mi B 0
48167 Northville, MI 5.0 mi B 5
48332 Farmington, MI 5.7 mi N/A 0

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Coverage: 14/17 risk factors Data sources →
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