Placer Cwa - Colfax
EPA ID: CA3110006 · 3,149 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Placer Cwa - Colfax (CA3110006): no drinking-water violations recorded since 2021. Across the monitored periods in available EPA data, Placer Cwa - Colfax has no violations listed for its service population of 3,149.
Data: EPA SDWIS
Service Area Map
Coverage area for Placer Cwa - Colfax Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Placer Cwa - Colfax have a median household income of $91,329 and about 10,471 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 57% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
Placer Cwa - Colfax'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.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in California
System Overview
Placer Cwa - Colfax (EPA ID: CA3110006) is a community water system in California that serves approximately 3,149 people from surface water sources.
This system serves ZIP code 95713 in Colfax.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| Below the reporting limit | No | 2025-12-31 |
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
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.
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 CA or modeled from parcel and building-footprint data.
- 95713 - Colfax
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Placer Cwa - Colfax (CA3110006) on EPA.gov.
Frequently Asked Questions
Is Placer Cwa - Colfax water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Placer Cwa - Colfax 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 Placer Cwa - Colfax serve?
Placer Cwa - Colfax serves approximately 3,149 people across 1 ZIP code in California.
Where does Placer Cwa - Colfax get its water?
The primary water source is surface water.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Placer Cwa - Colfax Water Quality Report, CA. https://zipcheckup.com/water-system/ca3110006/
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author = {{ZipCheckup}},
title = {{Placer Cwa - Colfax Water Quality Report, CA}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/ca3110006/}
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