F0/100
CEDAR GROVE WATER COMPANY — Water Quality Report 2026
Serving 1,564 people · Arizona
Water Source
Groundwater
County
—
System ID
AZ0401049
Violations
158
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
4
Violations (last 5yr)
1
Unresolved
0
Health-Related
TIER 3Unresolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: June 1, 2023 – June 30, 2023Rule: Total Coliform RuleEnforcement: 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: February 1, 2023 – June 7, 2023Rule: Total Coliform RuleEnforcement: 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: October 1, 2021 – December 23, 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 CEDAR GROVE WATER COMPANY
Is CEDAR GROVE WATER COMPANY water safe to drink?
CEDAR GROVE WATER COMPANY water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 158 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has CEDAR GROVE WATER COMPANY detected?
1 contaminants were tested in CEDAR GROVE WATER COMPANY's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does CEDAR GROVE WATER COMPANY have any EPA violations?
Yes, CEDAR GROVE WATER COMPANY has 158 EPA violation(s) on record, with the most recent in 2025. Violation types include MON, RPT, MR. 3 are health-based violations.
How many people does CEDAR GROVE WATER COMPANY serve?
CEDAR GROVE WATER COMPANY serves approximately 1,564 people, Arizona. The system provides water to 1 community: Vernon.
What type of water does CEDAR GROVE WATER COMPANY provide?
CEDAR GROVE WATER COMPANY sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is AZ0401049.
How does CEDAR GROVE WATER COMPANY compare to other utilities in Arizona?
CEDAR GROVE WATER COMPANY 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.