A80/100
GW SANTA CRUZ WATER CO - RED ROCK — Water Quality Report 2026
Serving 3,813 people · Arizona
Water Source
Groundwater
County
—
System ID
AZ0411160
Violations
20
Contaminant Test Results
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Monitoring violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: September 1, 2023 – February 27, 2024Rule: 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
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 GW SANTA CRUZ WATER CO - RED ROCK
Is GW SANTA CRUZ WATER CO - RED ROCK water safe to drink?
GW SANTA CRUZ WATER CO - RED ROCK water receives a grade of A (80/100), which is considered excellent. Out of 27 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has GW SANTA CRUZ WATER CO - RED ROCK detected?
27 contaminants were tested in GW SANTA CRUZ WATER CO - RED ROCK's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does GW SANTA CRUZ WATER CO - RED ROCK have any EPA violations?
Yes, GW SANTA CRUZ WATER CO - RED ROCK has 20 EPA violation(s) on record, with the most recent in 2023. Violation types include RPT, MR, Other.
How many people does GW SANTA CRUZ WATER CO - RED ROCK serve?
GW SANTA CRUZ WATER CO - RED ROCK serves approximately 3,813 people, Arizona. The system provides water to 1 community: Red Rock.
What type of water does GW SANTA CRUZ WATER CO - RED ROCK provide?
GW SANTA CRUZ WATER CO - RED ROCK sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is AZ0411160.
How does GW SANTA CRUZ WATER CO - RED ROCK compare to other utilities in Arizona?
GW SANTA CRUZ WATER CO - RED ROCK scores 80/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Arizona state page for a full comparison of water systems.