City of St Johns

ZipCheckup's reading of EPA records for City of St Johns (AZ0401012): 1 violation recorded with unresolved status in the SDWIS data used. City of St Johns's EPA file includes 1 unresolved violation; the utility supplies water to approximately 3,500 residents.

Data: EPA SDWIS

System Overview

City of St Johns (EPA ID: AZ0401012) is a community water system in Arizona that serves approximately 3,500 people from groundwater sources.

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

ZIP-Area Home Safety Context: B (78/100)

This is the average Home Safety Score for 2 of 3 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: 13 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

3 of 3 ZIP records with known zones are 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 AZ or modeled from parcel and building-footprint data.

• 85924 - Concho
• 85936 - Saint Johns
• 85938 - Springerville

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for City of St Johns (AZ0401012) on EPA.gov.

Frequently Asked Questions

Is City of St Johns 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 St Johns serve?

City of St Johns serves approximately 3,500 people across 3 ZIP codes in Arizona.

Where does City of St Johns get its water?

The primary water source is groundwater.

@misc{zipcheckup-water-system-az0401012,
  author = {{ZipCheckup}},
  title  = {{City of St Johns (AZ): 14 EPA Violations}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/az0401012/}
}