City of Hughson

ZipCheckup's reading of EPA SDWIS for City of Hughson (CA5010008): 2 unresolved EPA violations on record. EPA compliance records for City of Hughson show 2 unresolved violations - findings that remain open and are tracked at the federal level, covering a service territory of approximately 7,481 people.

Data: EPA SDWIS

System Overview

City of Hughson, (EPA ID: CA5010008) is a community water system in California that serves approximately 7,481 people from groundwater sources.

This system serves ZIP code 95326 in Hughson.

ZIP-Area Home Safety Context: B (84/100)

This is the average Home Safety Score for 1 of 1 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, 19 archived, 0 addressed, and 2 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 3 (Low Risk)

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.

• 95326 - Hughson

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for City of Hughson (CA5010008) on EPA.gov.

Frequently Asked Questions

Is City of Hughson water safe to drink?

The accepted 2026Q2 ECHO snapshot shows 1 current health-based noncompliance record for City of Hughson. Review the utility's current notices and EPA record. This system-level compliance history cannot determine conditions at a specific tap.

How many people does City of Hughson serve?

City of Hughson serves approximately 7,481 people across 1 ZIP code in California.

Where does City of Hughson get its water?

The primary water source is groundwater.

@misc{zipcheckup-water-system-ca5010008,
  author = {{ZipCheckup}},
  title  = {{City of Hughson (CA): 20 Health Violations}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/ca5010008/}
}