Graham County Utilities - Pima
EPA ID: AZ0405002 · 3,799 people served · 3 ZIP codes
ZipCheckup's reading of EPA SDWIS for Graham County Utilities - Pima (AZ0405002): 1 unresolved EPA violation on record. Graham County Utilities - Pima's current EPA file includes 1 unresolved violation - every outstanding finding is documented in federal records for this utility, which supplies water to approximately 3,799 residents across its service territory.
Data: EPA SDWIS
Service Area Map
Coverage area for Graham County Utilities - Pima Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Graham County Utilities - Pima serves a community with a median household income of $89,808 and an estimated 25,932 residents across its service area. Approximately 45% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 44% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
💧 Where Does Your Water Come From?
Graham County Utilities - Pima's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
Wastewater Proximity Note: This service area ranks in the 70th percentile nationally for proximity to wastewater discharge points.
Infrastructure Risk
Detected Contaminants
How Graham County Utilities - Pima compares to EPA limits
What This Means For You
Contaminant 0700 at 5 mg/L exceeds the EPA maximum of mg/L.
Revised Total Coliform Rule at 5 presence exceeds the EPA maximum of presence.
Surface Water Treatment Rule at 4 mg/L exceeds the EPA maximum of mg/L.
Lead and Copper Rule at 3 mg/L exceeds the EPA maximum of mg/L.
Consumer Confidence Report Rule at 2 mg/L exceeds the EPA maximum of mg/L.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 2 detections recorded.
Comparable Water Systems
Similar-sized systems in Arizona
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Graham County Utilities - Pima (EPA ID: AZ0405002) is a community water system in Arizona that serves approximately 3,799 people from groundwater sources.
This system provides water to 3 ZIP codes across 3 communities.
Violation History
Status breakdown for accepted records with record years 2021-2026: 19 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
| Date | Contaminant | Type | Status |
|---|---|---|---|
| October 2, 2025 | Surface Water Treatment Rule | Non-health-based | Resolved |
| July 1, 2025 | Surface Water Treatment Rule | Non-health-based | Resolved |
| February 23, 2025 | Contaminant 0700 | Health-based | Resolved |
| April 2, 2023 | Lead and Copper Rule | Non-health-based | Resolved |
| July 1, 2022 | Contaminant 0700 | Health-based | Resolved |
| July 1, 2022 | Contaminant 0700 | Health-based | Resolved |
| June 1, 2022 | Contaminant 0700 | Health-based | Resolved |
| March 17, 2022 | Contaminant 0700 | Health-based | Resolved |
| February 13, 2022 | Lead and Copper Rule | Non-health-based | Resolved |
| January 1, 2022 | Revised Total Coliform Rule | Non-health-based | Resolved |
| November 25, 2021 | Lead and Copper Rule | Non-health-based | Resolved |
| October 2, 2021 | Surface Water Treatment Rule | Non-health-based | Resolved |
| October 1, 2021 | Stage 1 DBP Rule | Non-health-based | Unaddressed (current) |
| October 1, 2021 | Revised Total Coliform Rule | Non-health-based | Resolved |
| August 1, 2021 | Consumer Confidence Report Rule | Non-health-based | Resolved |
| July 1, 2021 | Surface Water Treatment Rule | Non-health-based | Resolved |
| July 1, 2021 | Revised Total Coliform Rule | Non-health-based | Resolved |
| June 1, 2021 | Consumer Confidence Report Rule | Non-health-based | Resolved |
| April 1, 2021 | Revised Total Coliform Rule | Non-health-based | Resolved |
| January 1, 2021 | Revised Total Coliform Rule | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Contaminant 0700 | Other Violation | 5 | Yes |
| Revised Total Coliform Rule | Microbiological | 5 | No |
| Surface Water Treatment Rule | Treatment Failure | 4 | No |
| Lead and Copper Rule | Treatment Failure | 3 | No |
| Consumer Confidence Report Rule | Reporting Failure | 2 | No |
| Stage 1 DBP Rule | Treatment Failure | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0 mg/L | No | N/A |
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.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
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.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Graham County Utilities - Pima (AZ0405002) on EPA.gov.
Frequently Asked Questions
Is Graham County Utilities - Pima 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 Graham County Utilities - Pima serve?
Graham County Utilities - Pima serves approximately 3,799 people across 3 ZIP codes in Arizona.
Where does Graham County Utilities - Pima get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Graham County Utilities - Pima (AZ): 5 Health Violations. https://zipcheckup.com/water-system/az0405002/
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title = {{Graham County Utilities - Pima (AZ): 5 Health Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/az0405002/}
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What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Graham County Utilities - Pima (EPA ID: AZ0405002) - request the latest Consumer Confidence Report or ask about specific contaminants.