City of Corning

ZipCheckup's reading of EPA SDWIS for City of Corning (CA5210001): 1 unresolved EPA violation on record. Tallying the federal enforcement file for City of Corning yields 1 open violation that has not been formally closed - each finding sits in the EPA database while the utility continues to deliver water to approximately 8,244 residents and works through the required corrective action process.

Data: EPA SDWIS

System Overview

City of Corning (EPA ID: CA5210001) is a community water system in California that serves approximately 8,244 people from groundwater sources.

This system serves ZIP code 96021 in Corning.

ZIP-Area Home Safety Context: A (99/100)

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, 0 archived, 0 addressed, and 1 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.

• 96021 - Corning

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for City of Corning (CA5210001) on EPA.gov.

Frequently Asked Questions

Is City of Corning 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 City of Corning serve?

City of Corning serves approximately 8,244 people across 1 ZIP code in California.

Where does City of Corning get its water?

The primary water source is groundwater.

@misc{zipcheckup-water-system-ca5210001,
  author = {{ZipCheckup}},
  title  = {{City of Corning (CA): 1 EPA Violation}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/ca5210001/}
}