Suburban Water Systems-whittier

ZipCheckup's reading of EPA SDWIS for Suburban Water Systems-whittier (CA1910174): PFAS sampling above the current EPA limit (UCMR5). Water monitoring history at Suburban Water Systems-whittier shows a clean slate - EPA tracking over the past five years turned up no violations, and 66,045 residents continue to receive fully compliant service.

Data: EPA SDWIS

System Overview

Suburban Water Systems-whittier (EPA ID: CA1910174) is a community water system in California that serves approximately 66,045 people from groundwater sources.

This system provides water to 9 ZIP codes across 4 communities.

ZIP-Area Home Safety Context: C (58/100)

This is the average Home Safety Score for 3 of 9 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:

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.

• 90601 - Whittier
• 90602 - Whittier
• 90603 - Whittier
• 90604 - Whittier
• 90605 - Whittier
• 90606 - Whittier
• 90631 - La Habra
• 90638 - La Mirada
• 90670 - Santa Fe Springs

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Suburban Water Systems-whittier (CA1910174) on EPA.gov.

Frequently Asked Questions

Is Suburban Water Systems-whittier water safe to drink?

The accepted 2026Q2 ECHO snapshot contains zero violation records for Suburban Water Systems-whittier 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 Suburban Water Systems-whittier serve?

Suburban Water Systems-whittier serves approximately 66,045 people across 9 ZIP codes in California.

Where does Suburban Water Systems-whittier get its water?

The primary water source is groundwater.

@misc{zipcheckup-water-system-ca1910174,
  author = {{ZipCheckup}},
  title  = {{Suburban Water Systems-whittier, CA: Serves 66K People}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/ca1910174/}
}