Lewiston, UT (84320): 1 Health-Based Violation Recorded for Mapped Water Systems
EPA data combined for 4 water systems mapped to this ZIP (largest mapped system: Richmond City Water System)
Health-based violation records by water system:
EPA records for the water systems mapped to 84320 in Lewiston, UT contain 53 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
At a Glance
- Water EPA records for water systems mapped to this ZIP show 1 health-based violation and 52 non-health-based (since 2021).
- Lead The reported 90th-percentile lead result of 0.0032 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.
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Score Breakdown
Overall Home Safety Score: Score unavailable
Required evidence is missing. Missing values remain unknown and are not imputed or renormalized.
Canonical components
Required domains
Coverage: 3 of 4 components and 2 of 3 domains observed.
Model 4.0.0; series home-safety-v4-cross-vertical.
Safety & Health (7) CRITICAL
Your Water System
ZIP code 84320 in Lewiston, Utah is mapped to the water system Richmond City Water System (EPA ID: UTAH03018). This system provides water to approximately 2,967 people from groundwater sources.
There are 4 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 |
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| Richmond City Water System | UTAH03018 | 2,967 | Groundwater |
| Lewiston City | UTAH03009 | 2,078 | Groundwater |
| Clarkston Town Water System | UTAH03004 | 763 | Groundwater |
| High Creek Water Company | UTAH03086 | 120 | Groundwater |
Other Water Quality Reports in Utah
- 84001 (Altamont) - 9 violations recorded for mapped water systems
- 84002 (Altonah) - 9 violations recorded for mapped water systems
- 84003 (American Fork) - 103 violations recorded for mapped water systems
- 84004 (Alpine)
- 84005 (Eagle Mountain) - 11 violations recorded for mapped water systems
- 84006 (Bingham Canyon) - 2 violations recorded for mapped water systems
- 84007 (Bluebell) - 9 violations recorded for mapped water systems
- 84008 (Bonanza)
- 84009 (South Jordan)
- 84010 (Bountiful) - 32 violations recorded for mapped water systems
- 84011 (Bountiful)
- 84013 (Cedar Valley) - 1 violation recorded for mapped water systems
- 84014 (Centerville) - 29 violations recorded for mapped water systems
- 84015 (Clearfield) - 31 violations recorded for mapped water systems
- 84016 (Clearfield)
- 84017 (Coalville) - 33 violations recorded for mapped water systems
- 84018 (Croydon)
- 84020 (Draper) - 22 violations recorded for mapped water systems
- 84021 (Duchesne) - 21 violations recorded for mapped water systems
- 84022 (Dugway)
Nearby Water Quality Reports
- 84333 (Richmond) - 5 mi - 51 violations recorded for mapped water systems
- 84338 (Trenton) - 5 mi - 29 violations recorded for mapped water systems
- 84308 (Cornish) - 5 mi - 13 violations recorded for mapped water systems
- 83237 (Franklin, ID) - 6 mi - 5 violations recorded for mapped water systems
- 83286 (Weston, ID) - 7 mi
- 84335 (Smithfield) - 9 mi - 75 violations recorded for mapped water systems
- 84327 (Newton) - 9 mi - 29 violations recorded for mapped water systems
- 84305 (Clarkston) - 10 mi - 26 violations recorded for mapped water systems
- 83263 (Preston, ID) - 10 mi - 11 violations recorded for mapped water systems
- 83232 (Dayton, ID) - 12 mi
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Richmond City Water System (UTAH03018) 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.
Health Risks from Detected Contaminants
Radium-226
High RiskEPA 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 →
Radium-228
High RiskEPA 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 →
Environmental Hazards (10) MODERATE
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.
Protect Your Home in Lewiston
Based on local data for ZIP 84320, these services may benefit homeowners in your area.
Based on local data for your area. Use the tools below to explore your options.
Gutter Installation & Repair
The median home in 84320 was built around 1976. Aging gutters can cause foundation damage, basement flooding, and mold - a professional assessment can prevent costly repairs.
Typical cost: Gutter installation: typically $1,000–$2,500 for a standard home
Estimate Your Home Maintenance CostsWindow Replacement
The median build year of homes in Lewiston is 1976; check the age and condition of your own windows. ENERGY STAR windows can save $101–$583/year on energy bills.
Typical cost: Window replacement: typically $300–$800 per window installed
Estimate Your Home Maintenance CostsRoofing Inspection & Repair
Homes built around 1976 may be on their second or third roof. A professional inspection can catch damage before leaks start.
Typical cost: Roof inspection: typically $75–$300; repairs $300–$1,500
Estimate Your Home Insurance NeedsService 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 84320 safe to drink?
EPA SDWIS records 53 violations since 2021 across the water systems mapped to ZIP 84320 (primary system: Richmond 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 84320's water come from?
The recorded water source for Richmond City Water System, a system mapped to ZIP code 84320, is Groundwater. This system serves approximately 2,967 people.
How can I get my water tested in Lewiston?
If Richmond 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 84320 tap water?
The Lead and Copper Rule record selected for 84320 reports a 90th-percentile lead result of 0.0032 mg/L for a water system mapped to this ZIP (record date 2025-12-31). 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 84320?
84320 is mapped to a county in EPA Radon Zone 2 (moderate county-level radon potential; EPA recommends testing every home), located in Cache 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
ZipCheckup. (2026). Lewiston, UT (84320): 1 Health-Based Violation Recorded for Mapped Water Systems. https://zipcheckup.com/report/84320/
@misc{zipcheckup-report-84320,
author = {{ZipCheckup}},
title = {{Lewiston, UT (84320): 1 Health-Based Violation Recorded for Mapped Water Systems}},
year = {2026},
url = {https://zipcheckup.com/report/84320/}
}
Page version: October 2026.
Nearby ZIP Code Reports
Water quality comparison for ZIP codes near 84320
| ZIP Code | City, State | Distance | Grade | Violations |
|---|---|---|---|---|
| 84333 | Richmond, UT | 4.6 mi | N/A | 51 |
| 84338 | Trenton, UT | 5.1 mi | N/A | 29 |
| 84308 | Cornish, UT | 5.3 mi | N/A | 13 |
| 83237 | Franklin, ID | 6.1 mi | N/A | 5 |
| 83286 | Weston, ID | 7.1 mi | N/A | 0 |
| 84335 | Smithfield, UT | 9.1 mi | C | 75 |
| 84327 | Newton, UT | 9.5 mi | N/A | 29 |
| 84305 | Clarkston, UT | 9.5 mi | N/A | 26 |
| 83263 | Preston, ID | 9.8 mi | B | 11 |
| 83232 | Dayton, ID | 11.7 mi | N/A | 0 |
Nearby ZIP Code Reports
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