ZipCheckup grade for 84074: C.

A mixed picture - some signals here are worth your attention.

Water Quality Report
C 67

Tooele, UT (84074): 110 Violations Recorded for Mapped Water Systems - 67/100

EPA data combined for 6 water systems mapped to this ZIP (largest mapped system: Tooele City Water System)

EPA records for the water systems mapped to 84074 in Tooele, UT contain 110 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
C 67/100
Water Quality Concerns 110 non-health-based violation records in EPA data
Lead Risk Below action level 0.0026 mg/L, 90th percentile, sample period ending 2023-12-31
NFIP Claim History Claim records 4 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 110 violations (non-health) (since 2021).
  • Lead The reported 90th-percentile lead result of 0.0026 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 4 cumulative NFIP claim records. Claim evidence is historical, not current map coverage.
Contaminant Summary
Violations on record (not health-based)
110 violations 2 risks identified
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
C
ZIP-level Home Safety model score: 67 / 100
Bottom 35% of U.S. ZIP codes
6
Water Systems
37,100
People Served
0
Health Violations (since 2021)
Groundwater
Water Source
0.0026 mg/L
Reported Lead Result
Zone 2
County Radon Potential · Moderate
$383K
Median Home ValueState median: $366K

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Score Breakdown

Overall Home Safety Score: 67/100

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
0/100
Observed
PFAS MCL screen
100/100
Observed
EPA radon zone
50/100
Observed
Annual EPA AirData AQI
100/100
Observed

Required domains

Drinking water
50/100
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 (8) HIGH

Your Water System

ZIP code 84074 in Tooele, Utah is mapped to the water system Tooele City Water System (EPA ID: UTAH23004). This system provides water to approximately 37,100 people from groundwater sources.

There are 6 community water systems serving this area.

Water Systems Serving This Area

System Name EPA ID Population Source
Tooele City Water System UTAH23004 37,100 Groundwater
Stansbury Park Improvement District UTAH23003 9,839 Groundwater
Oquirrh Mountain Water Company UTAH23076 2,500 Groundwater
Grantsville City UTAH23002 16,284 Groundwater
Erda Acres Water Company UTAH23053 1,150 Groundwater

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 Tooele City Water System (UTAH23004) 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 84074 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 →

Health Risks from Detected Contaminants

Radium-226

High Risk

EPA reference value: 5 pCi/L (MCL for combined Radium-226 & 228)

Increased cancer risk, including bone cancer (known carcinogen)

At-risk groups: people who drink water with radium above the MCL over many years

Treatment options (verify a product is certified to reduce this contaminant): ion exchange (water softener), reverse osmosis, lime softening · Find a filter →

Learn more about Radium-226 in drinking water →

Radium-228

High Risk

EPA reference value: 5 pCi/L (MCL for combined Radium-226 & 228)

Increased cancer risk, including bone cancer (known carcinogen)

At-risk groups: people who drink water with radium above the MCL over many years

Treatment options (verify a product is certified to reduce this contaminant): ion exchange (water softener), reverse osmosis, lime softening · Find a filter →

Learn more about Radium-228 in drinking water →

📊 EPA SDWIS + SDWA · View source →
Environmental Hazards (11) HIGH
Home & Infrastructure (6) OK
Cost & Community (9) HIGH

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 Tooele

Based on local data for ZIP 84074, 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 Tooele has 4 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 84074 safe to drink?

EPA SDWIS records 110 violations since 2021 across the water systems mapped to ZIP 84074 (primary system: Tooele City Water System), 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 84074's water come from?

The recorded water source for Tooele City Water System, a system mapped to ZIP code 84074, is Groundwater. This system serves approximately 37,100 people.

How does Tooele water compare to the national average?

Tooele's Home Safety Score ranks lower than 65% of U.S. ZIP codes, and lower than 68% of ZIP codes within Utah.

How can I get my water tested in Tooele?

If Tooele 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 84074 tap water?

The Lead and Copper Rule record selected for 84074 reports a 90th-percentile lead result of 0.0026 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 84074?

84074 is mapped to a county in EPA Radon Zone 2 (moderate county-level radon potential; EPA recommends testing every home), located in Tooele 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 84074?

FEMA records contain 4 flood insurance claims filed in ZIP code 84074; 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). Tooele, UT (84074): 110 Violations Recorded for Mapped Water Systems - 67/100. https://zipcheckup.com/report/84074/
BibTeX 
@misc{zipcheckup-report-84074,
  author = {{ZipCheckup}},
  title  = {{Tooele, UT (84074): 110 Violations Recorded for Mapped Water Systems - 67/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/report/84074/}
}

Page version: October 2026.

Nearby ZIP Code Reports

Water quality comparison for ZIP codes near 84074

ZIP Code City, State Distance Grade Violations
84071 Stockton, UT 7.8 mi N/A 0
84029 Grantsville, UT 9.3 mi C 78
84006 Bingham Canyon, UT 10.7 mi N/A 2
84081 West Jordan, UT 14.2 mi B 1
84096 Herriman, UT 14.2 mi B 8
84069 Rush Valley, UT 15.7 mi N/A 0
84044 Magna, UT 15.7 mi C 1
84118 Salt Lake City, UT 17.1 mi B 1
84088 West Jordan, UT 18.0 mi B 2
84095 South Jordan, UT 18.2 mi B 0

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