ZipCheckup grade for 84040: B.

This ZIP has a few items worth a quick check.

Health Violations Found
B 74

Layton, UT (84040): 1 Health-Based Violation Recorded for Mapped Water Systems - 74/100

EPA data combined for 5 water systems mapped to this ZIP (largest mapped system: Layton City Water System)

Health Violations Found

Health-based violation records by water system:

EPA records for the water systems mapped to 84040 in Layton, UT contain 28 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 1 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 74/100
Water Quality Issues 1 health-based violation
Lead Risk Below action level 0.0041 mg/L, 90th percentile, sample period ending 2023-12-31
NFIP Claim History Claim records 9 claims
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 health-based violation and 27 non-health-based (since 2021).
  • Lead The reported 90th-percentile lead result of 0.0041 mg/L is below the EPA action level for water systems; EPA's health goal for lead is zero.
  • Radon EPA Zone 2 - county-level radon potential, not a home measurement.
  • Flood 9 cumulative NFIP claim records. Claim evidence is historical, not current map coverage.
Contaminant Summary
Health Violations
28 violations 1 health-based
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: 74 / 100
Bottom 49% of U.S. ZIP codes
5
Water Systems
82,000
People Served
1
Health Violations (since 2021)Median is 0
Surface water
Water Source
0.00408 mg/L
Reported Lead Result1.8× the national median for this measure
Zone 2
County Radon Potential · Moderate
$486K
Median Home Value33% above state median ($366K)

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Score Breakdown

Overall Home Safety Score: 74/100

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
42/100
Observed
PFAS MCL screen
100/100
Observed
EPA radon zone
50/100
Observed
Annual EPA AirData AQI
100/100
Observed

Required domains

Drinking water
71/100
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) CRITICAL

Your Water System

ZIP code 84040 in Layton, Utah is mapped to the water system Layton City Water System (EPA ID: UTAH06018). This system provides water to approximately 82,000 people from surface water sources.

There are 5 community water systems serving this area.

Lead & Copper in Your Water

The EPA requires water systems to monitor lead and copper levels under the Lead and Copper Rule.

Metal Measured Level EPA Action Level Status Sample Date or Period
Copper Action-level exceedance on record 1.3 mg/L Exceeds action level Not present in ZipCheckup accepted source data
How to read the copper row. EPA's reporting schema defines the copper CU90 code as an action-level exceedance (a system's 90th-percentile copper above the 1.3 mg/L action level), so this row reflects an exceedance on record, not a routine measurement. No copper concentration is shown because no verified unit is available for this value. A system with no copper record has not been shown to be clean: the absence of a recorded exceedance is not a measurement.

Water Systems Serving This Area

System Name EPA ID Population Source
Layton City Water System UTAH06018 82,000 Surface water
South Weber Water System UTAH06010 8,125 Surface water
Fruit Heights City Water System UTAH06017 6,075 Surface water
Kaysville City Water System UTAH06006 32,976 Surface water
Mutton Hollow Improvement District UTAH06007 695 Surface water

Other Water Quality Reports in Utah

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 Layton City Water System (UTAH06018) 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 84040 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 (11) HIGH
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 →

Protect Your Home in Layton

Based on local data for ZIP 84040, 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 Layton has 9 FEMA flood claims 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 84040 safe to drink?

EPA SDWIS records 28 violations since 2021 across the water systems mapped to ZIP 84040 (primary system: Layton City Water System), including 1 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 84040's water come from?

The recorded water source for Layton City Water System, a system mapped to ZIP code 84040, is Surface water. This system serves approximately 82,000 people.

How does Layton water compare to the national average?

Layton's Home Safety Score ranks lower than 51% of U.S. ZIP codes, and at or above 56% within Utah.

How can I get my water tested in Layton?

If Layton City Water System 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.

Is lead a concern in 84040 tap water?

The Lead and Copper Rule record selected for 84040 reports a 90th-percentile lead result of 0.00408 mg/L for a water system mapped to this ZIP (record date 2023-12-31). The EPA action level is 0.015 mg/L. This result is below the EPA action level; it does not show the lead level in each home.

What is the radon risk for 84040?

84040 is mapped to a county in EPA Radon Zone 2 (moderate county-level radon potential; EPA recommends testing every home), located in Davis 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 84040?

FEMA records contain 9 flood insurance claims filed in ZIP code 84040; the recorded rated-zone value (the most frequent one if there are several claims) is X, 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). Layton, UT (84040): 1 Health-Based Violation Recorded for Mapped Water Systems - 74/100. https://zipcheckup.com/report/84040/
BibTeX 
@misc{zipcheckup-report-84040,
  author = {{ZipCheckup}},
  title  = {{Layton, UT (84040): 1 Health-Based Violation Recorded for Mapped Water Systems - 74/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/report/84040/}
}

Page version: October 2026.

Nearby ZIP Code Reports

Water quality comparison for ZIP codes near 84040

ZIP Code City, State Distance Grade Violations
84041 Layton, UT 2.3 mi B 31
84037 Kaysville, UT 3.3 mi B 27
84056 Hill Afb, UT 4.1 mi B 1
84016 Clearfield, UT 5.4 mi N/A 0
84075 Syracuse, UT 6.1 mi B 28
84405 Ogden, UT 6.8 mi B 6
84025 Farmington, UT 6.8 mi B 34
84015 Clearfield, UT 7.0 mi B 31
84403 Ogden, UT 7.3 mi N/A 3
84408 Ogden, UT 7.7 mi B 0

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