Salt Lake City Water System
EPA ID: UTAH18026 · 383,612 people served · 24 ZIP codes
ZipCheckup's reading of EPA records for Salt Lake City Water System (UTAH18026): a UCMR5 PFAS sample above the level of an EPA PFAS MCL, which takes effect in 2029; this is not a violation. Federal SDWIS data returns no violation records for Salt Lake City Water System, the supplier serving 383,612 residents - a statement about the EPA file rather than a measurement of contaminant levels in the water.
Data: EPA SDWIS
Service Area Map
Coverage area for Salt Lake City Water System Source: EPA SDWIS service area boundaries.
Service area boundary - average Home Safety grade of mapped ZIPs: C
Demographics of ZIP Codes Served
The ZIP codes associated with Salt Lake City Water System have a median household income of $81,386 and about 547,427 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 67% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
Salt Lake City Water System's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
Superfund Proximity Note: This service area ranks in the 70th percentile nationally for proximity to Superfund (NPL) sites.
Infrastructure Risk
PFAS in ZIP Codes This System Serves
PFAS ("forever chemicals") have been reported in samples from water systems associated with the ZIP codes in this system's area. These results can come from other water systems serving the same ZIP codes; check the UCMR5 section for any results reported for this system. 97 detections recorded. 44 detections are above the level of a federal PFAS MCL (4 ppt for PFOA and PFOS), with compliance required from 2029.
Comparable Water Systems
Similar-sized systems in Utah
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Salt Lake City Water System (EPA ID: UTAH18026) is a community water system in Utah that serves approximately 383,612 people from surface water sources.
This system provides water to 24 ZIP codes across 3 communities.
ZIP-Area Home Safety Context: C (57/100)
This is the average Home Safety Score for 17 of 24 service-area ZIP codes with all required score domains observed. It is not a grade for the water utility.
Model 4.0.0 uses SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0025 mg/L | No | 2024-12-31 |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Radon Risk in Service Area
24 of 24 ZIP records with known zones are 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.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by UT or modeled from parcel and building-footprint data.
- 84047 - Midvale
- 84093 - Sandy
- 84101 - Salt Lake City
- 84102 - Salt Lake City
- 84103 - Salt Lake City
- 84104 - Salt Lake City
- 84105 - Salt Lake City
- 84106 - Salt Lake City
- 84107 - Salt Lake City
- 84108 - Salt Lake City
- 84109 - Salt Lake City
- 84111 - Salt Lake City
- 84112 - Salt Lake City
- 84113 - Salt Lake City
- 84114 - Salt Lake City
- 84115 - Salt Lake City
- 84116 - Salt Lake City
- 84117 - Salt Lake City
- 84119 - Salt Lake City
- 84120 - Salt Lake City
- 84121 - Salt Lake City
- 84124 - Salt Lake City
- 84150 - Salt Lake City
- 84180 - Salt Lake City
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Salt Lake City Water System (UTAH18026) on EPA.gov.
Frequently Asked Questions
Is Salt Lake City Water System water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Salt Lake City Water System in the inclusive 2021-2026 record-year window. This is a compliance-record finding, not a guarantee about water at a specific tap.
How many people does Salt Lake City Water System serve?
Salt Lake City Water System serves approximately 383,612 people across 24 ZIP codes in Utah.
Where does Salt Lake City Water System get its water?
The primary water source is surface water.
Federal UCMR5 PFAS Monitoring: Sample Above an EPA MCL Value or State Standard
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). One or more PFAS measurements were above the level of the EPA MCL for that compound (April 2024 rule, which takes effect in 2029) or above an applicable state drinking-water standard; a monitoring result above that level is not by itself a violation.
EPA's April 2024 PFAS rule sets MCLs of 4 ppt for PFOA and PFOS and 10 ppt for PFHxS, PFNA and HFPO-DA (GenX); water systems must comply from 2029. Other PFAS compounds have no individual federal MCL. A state standard is shown only where this system's state has its own enforceable PFAS limit. Detection results are EPA UCMR5 samples, not a measurement at your tap.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Salt Lake City Water System, UT: Serves 384K People. https://zipcheckup.com/water-system/utah18026/
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title = {{Salt Lake City Water System, UT: Serves 384K People}},
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url = {https://zipcheckup.com/water-system/utah18026/}
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What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Salt Lake City Water System (EPA ID: UTAH18026) - request the latest Consumer Confidence Report or ask about specific contaminants.