F0/100
GRIC DPW Wild Horse Pass — Water Quality Report 2026
Serving 22,795 people · Arizona
Water Source
Groundwater
County
—
System ID
090400692
Violations
54
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | < 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
3
Violations (last 5yr)
1
Unresolved
1
Health-Related
TIER 2Unresolved
Treatment technique violation
When: October 17, 2024Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: August 25, 2023 – May 16, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Exceeded the MCL for disinfection byproducts
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2023 – March 31, 2023Enforcement: 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 GRIC DPW Wild Horse Pass
Is GRIC DPW Wild Horse Pass water safe to drink?
GRIC DPW Wild Horse Pass water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 54 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has GRIC DPW Wild Horse Pass detected?
39 contaminants were tested in GRIC DPW Wild Horse Pass's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does GRIC DPW Wild Horse Pass have any EPA violations?
Yes, GRIC DPW Wild Horse Pass has 54 EPA violation(s) on record, with the most recent in 2024. Violation types include TT, MR, MCL. 12 are health-based violations.
How many people does GRIC DPW Wild Horse Pass serve?
GRIC DPW Wild Horse Pass serves approximately 22,795 people, Arizona. The system provides water to 1 community: Wildhorse Pass Casino, St. Johns Komatke.
What type of water does GRIC DPW Wild Horse Pass provide?
GRIC DPW Wild Horse Pass sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is 090400692.
How does GRIC DPW Wild Horse Pass compare to other utilities in Arizona?
GRIC DPW Wild Horse Pass scores 0/100 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.