TapScore

GW SANTA CRUZ WATER CO Water Quality Report

Population

84,000

people served

Water Source

🏔️ Ground

wells & aquifers

National Rank

Top 90%

of 49,184 US systems

5-Year Record

⚠️ 317

violations recorded

C

Fair

Safety Grade

317 violations in the past 5 years, including 1 health-based

System Details

PWSID
AZ0411131
Population Served
84,000
Water Source
Ground Water
Owner
Private
State
Arizona
EPA Region
9

Contaminants of Concern

ContaminantStatusViolations
Contaminant 7000⚠ Monitoring/Reporting12
Contaminant 0999⚠ Monitoring/Reporting4
Total Trihalomethanes (TTHMs)⚠ Monitoring/Reporting7
Haloacetic Acids (HAA5)⚠ Monitoring/Reporting7
Contaminant 8000✕ Health-Based5
Contaminant 4030⚠ Monitoring/Reporting10
Gross Alpha⚠ Monitoring/Reporting14
Radium-226⚠ Monitoring/Reporting10
Contaminant 4020⚠ Monitoring/Reporting10
Uranium⚠ Monitoring/Reporting6
Arsenic⚠ Monitoring/Reporting8
Barium⚠ Monitoring/Reporting8
Cadmium⚠ Monitoring/Reporting8
Chromium⚠ Monitoring/Reporting8
Cyanide⚠ Monitoring/Reporting8
Fluoride⚠ Monitoring/Reporting8
Selenium⚠ Monitoring/Reporting8
Contaminant 1036⚠ Monitoring/Reporting8
Contaminant 1052⚠ Monitoring/Reporting8
Beryllium⚠ Monitoring/Reporting8
Contaminant 1075⚠ Monitoring/Reporting8
Contaminant 1085⚠ Monitoring/Reporting8
Thallium⚠ Monitoring/Reporting8
Contaminant 2005⚠ Monitoring/Reporting4
Contaminant 2010⚠ Monitoring/Reporting4
Contaminant 2015⚠ Monitoring/Reporting4
Contaminant 2020⚠ Monitoring/Reporting4
Contaminant 2031⚠ Monitoring/Reporting4
Contaminant 2032⚠ Monitoring/Reporting4
Contaminant 2033⚠ Monitoring/Reporting4
Contaminant 2034⚠ Monitoring/Reporting4
Contaminant 2035⚠ Monitoring/Reporting4
Contaminant 2036⚠ Monitoring/Reporting4
Contaminant 2037⚠ Monitoring/Reporting4
Contaminant 2039⚠ Monitoring/Reporting4
Contaminant 2040⚠ Monitoring/Reporting4
Contaminant 2041⚠ Monitoring/Reporting4
Contaminant 2042⚠ Monitoring/Reporting4
Contaminant 2046⚠ Monitoring/Reporting4
Atrazine⚠ Monitoring/Reporting4
Benzene⚠ Monitoring/Reporting4
Contaminant 2063⚠ Monitoring/Reporting4
Contaminant 2065⚠ Monitoring/Reporting4
Contaminant 2067⚠ Monitoring/Reporting4
Contaminant 2105⚠ Monitoring/Reporting4
Contaminant 2110⚠ Monitoring/Reporting4
Contaminant 2274⚠ Monitoring/Reporting4
Contaminant 2306⚠ Monitoring/Reporting4
Contaminant 2326⚠ Monitoring/Reporting4
Contaminant 2388⚠ Monitoring/Reporting4
Contaminant 2390⚠ Monitoring/Reporting4
Contaminant 2392⚠ Monitoring/Reporting4
Contaminant 2394⚠ Monitoring/Reporting4
Contaminant 2396⚠ Monitoring/Reporting4
Contaminant 2398⚠ Monitoring/Reporting4
Contaminant 2400⚠ Monitoring/Reporting4
Contaminant 2931⚠ Monitoring/Reporting4
Contaminant 2946⚠ Monitoring/Reporting4
Contaminant 2959⚠ Monitoring/Reporting4
Contaminant 7500⚠ Monitoring/Reporting4

Violation History

2025
5
2024
6
2023
50
2021
256
2020
4
2019
4
2016
4
2015
1
2011
1
2010
1

Total violations on record: 337

Service Area

Cities Served

MARICOPA

ZIP Codes Served

85138

Recommended Water Filters

Based on contaminants detected in this water system:

Reverse Osmosis System

Removes up to 99% of contaminants including PFAS, lead, arsenic, and nitrates

Removes: Arsenic, Uranium, Radium-226, Fluoride, Cadmium, Chromium, Selenium, Barium

$150–$400

Activated Carbon Filter

Effective for chlorine, THMs, pesticides, and taste/odor improvement

Removes: Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5), Atrazine, Benzene

$20–$100

Water Distiller

Removes heavy metals, minerals, and most contaminants through evaporation

Removes: Arsenic, Cadmium, Fluoride

$80–$200

How does this compare?

This systemNational average
Grade C
Avg: B-C
337violations total

1204% of national average

National avg: ~28 per system

🏙️ This is a large system — serving 13× more people than the national average.