Temescal Valley Water District

ZipCheckup's reading of EPA SDWIS for Temescal Valley Water District (CA3310074): 1 unresolved EPA violation on record. Where compliant utilities carry no open actions, Temescal Valley Water District shows 1 active EPA violation in the federal database for a service population of approximately 21,971.

Data: EPA SDWIS

System Overview

Temescal Valley Water District (EPA ID: CA3310074) is a community water system in California that serves approximately 21,971 people from surface water sources.

This system provides water to 4 ZIP codes across 3 communities.

ZIP-Area Home Safety Context: B (72/100)

This is the average Home Safety Score for 1 of 4 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

Status breakdown for accepted records with record years 2021-2026: 0 resolved, 0 archived, 1 addressed, and 0 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.

Recent Violations

Contaminants Detected

The following contaminants have been flagged in EPA records for this water system:

Lead & Copper

EPA Lead and Copper Rule evidence attributed directly to this water system:

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

Dominant radon zone for ZIP codes served by this system: Zone 2 (Moderate Risk)

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

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.

• 92532 - Lake Elsinore
• 92570 - Perris
• 92881 - Corona
• 92883 - Corona

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Temescal Valley Water District (CA3310074) on EPA.gov.

Frequently Asked Questions

Is Temescal Valley Water District water safe to drink?

The accepted 2026Q2 ECHO snapshot shows 1 current noncompliance record and zero current records classified as health-based. That classification is not a property-specific water test or safety guarantee.

How many people does Temescal Valley Water District serve?

Temescal Valley Water District serves approximately 21,971 people across 4 ZIP codes in California.

Where does Temescal Valley Water District get its water?

The primary water source is surface water.

@misc{zipcheckup-water-system-ca3310074,
  author = {{ZipCheckup}},
  title  = {{Temescal Valley Water District (CA): 1 EPA Violation}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/ca3310074/}
}