Smithfield, UT: Lead Above EPA Action Level - Home Safety 67/100
1 ZIP code · 5 water systems · Updated
ZipCheckup grade for Smithfield: C.
A mixed picture - some signals here are worth your attention.
Within Smithfield, the records summarized for UT produce a C grade - a middle reading that calls for checking the specific system at your address.
How Smithfield Compares
Data: EPA SDWIS
What You Should Know About Smithfield Water
- Your city's water systems recorded 75 violations since 2021.
- Average of reported 90th-percentile lead results: 0.046 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average.
- Homes built before 1986: 40% - older plumbing may contain lead solder.
- Estimated remediation: $300 per household.
- Health risk index (ZipCheckup composite of CDC data): 9.55.
Who Supplies Your Water in Smithfield
3 systems shown for Smithfield, UT, from 5 on the federal list.
- C
- C
- C
Overview
We track home safety data for 1 ZIP code in Smithfield, Utah (population ~16,278), covering 5 community water systems serving approximately 72,516 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.
1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. 2 health-based violations appear in the available health breakdown.
Home Safety Score
Average Home Safety Score for Smithfield: C (67/100)
Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| PFAS MCL Screen | UCMR 5 testing against the covered federal MCLs |
| Radon Risk | EPA radon zone classification |
| Annual AQI | EPA AirData county-year median with at least 90 observed days |
Water Sources
Smithfield water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average of reported 90th-percentile lead results: 0.0460 mg/L (exceeds EPA action level) (EPA action level: 0.015 mg/L)
- 1 of 1 ZIP code with known status exceed the EPA lead action level
Radon Risk
1 of 1 ZIP records with known zones is in EPA Radon Zone 2.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Nitrate | Inorganic | 36 | 1 |
| Gross Alpha (excl. radon and uranium) | Radionuclides | 14 | 1 |
| Radium-226 | Radionuclides | 14 | 1 |
| Radium-228 | Radionuclides | 14 | 1 |
| Consumer Confidence Rule | Reporting | 12 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 84335 | C | 75 | 2 | Smithfield City |
All ZIP Codes in Smithfield
- 84335 [C] - 75 violations ⚠
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
Health Outcomes in Smithfield
Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Top Contaminants in Smithfield Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Smithfield
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Smithfield's housing spans eras before and after 1986; its median build year is 1994.
Most homes in Smithfield were built after 1986; lead exposure at a tap still depends on its service line and plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Cost Context: What Remediation Means for Smithfield Homeowners
Relative to home values, Smithfield remediation estimates run low.
Estimated remediation costs in Smithfield can be compared with local home values. The $150–$600 estimated range can be set against the median property value; actual costs vary by home. Home values are 3% above the Utah average.
Lead Exposure Risk for Children in Smithfield
Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Even though compliance with the federal lead action level is judged on each system's own 90th percentile, the average of those results across Smithfield ZIP codes, 0.010 mg/L or more, is a reason to check at home, particularly in the 40% of housing built before 1986.
1 ZIP code (100% of the city's ZIP records) is served by a water system whose 90th-percentile lead result exceeds the EPA action level of 0.015 mg/L.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical NFIP Claim Context in Smithfield
Historical NFIP data for Smithfield contains 1 flood insurance claim.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The $300 remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.
Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.
Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.
What You Can Do in Smithfield
- Test your water at home. City-level data shows averages - your tap may differ. Consider testing your home's tap water for lead, since household plumbing can affect its level.
- Install a certified water filter. For Nitrate, listed in the water-quality records for Smithfield: if it is a rule or reporting requirement rather than a contaminant, ask your utility what the record involved; for bacteria, follow any boil-water notice from your utility; for a specific chemical contaminant, check whether a filter is certified to reduce it. Not every contaminant has a consumer filter certification.
- Check your home's plumbing. With 40% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Smithfield, UT