When: November 25, 2021 – March 28, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: October 2, 2021 – October 28, 2021Enforcement: Resolving — corrective action underway
TIER 3Resolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2021 – December 31, 2021Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 3Unresolved
Failed to issue ongoing public notification
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2021Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved
Monitoring violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: August 1, 2021 – October 28, 2021Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 1, 2021 – September 30, 2021Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2021 – October 27, 2021Enforcement: Resolving — corrective action underway
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: June 1, 2021 – June 30, 2021Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About GRAHAM COUNTY UTILITIES - PIMA
Is GRAHAM COUNTY UTILITIES - PIMA water safe to drink?
GRAHAM COUNTY UTILITIES - PIMA water receives a grade of F (8/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 72 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has GRAHAM COUNTY UTILITIES - PIMA detected?
1 contaminants were tested in GRAHAM COUNTY UTILITIES - PIMA's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does GRAHAM COUNTY UTILITIES - PIMA have any EPA violations?
Yes, GRAHAM COUNTY UTILITIES - PIMA has 72 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, TT, MR. 5 are health-based violations.
How many people does GRAHAM COUNTY UTILITIES - PIMA serve?
GRAHAM COUNTY UTILITIES - PIMA serves approximately 3,799 people, Arizona. The system provides water to 1 community: Pima.
What type of water does GRAHAM COUNTY UTILITIES - PIMA provide?
GRAHAM COUNTY UTILITIES - PIMA sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is AZ0405002.
How does GRAHAM COUNTY UTILITIES - PIMA compare to other utilities in Arizona?
GRAHAM COUNTY UTILITIES - PIMA scores 8/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Arizona state page for a full comparison of water systems.