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Awc - Casa Grande South Water Company

EPA monitoring tested this supplier for 5 contaminants and detected 5. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

5
contaminants tested
5
detected
176
people served
4
health-based violations
Arizona rankingsLead in ArizonaPFAS in Arizona
Water source
GWP
Ownership
Private
Counties served
Pinal

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

4
health-based violations
99
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2024-10-17
TT Health-based Resolved 2024-10-17
TT Health-based Resolved 2024-10-17
TT Health-based Resolved 2024-10-17
RPT Monitoring Resolved 2024-10-17
RPT Monitoring Resolved 2024-10-17
RPT Monitoring Resolved 2024-10-17
RPT Monitoring Resolved 2024-10-17
MR Monitoring Resolved 2021-04-01 → 2021-06-30
MR Monitoring Resolved 2021-04-01 → 2021-06-30

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
150 µg/L 12%
of the EPA limit 1300 µg/L
 17/20 SYR4 2014–2017
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 7/7 LCR 2023
Lead
14 µg/L 93%
of the EPA limit 15 µg/L
 6/20 SYR4 2014–2017
TTHM
24 µg/L 30%
of the EPA limit 80 µg/L
 4/4 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
5.9 µg/L 9.8%
of the EPA limit 60 µg/L
 4/4 SYR4 2012–2019

Utility contact

Contact
DUNAWAY, DAVID
Phone
602-294-2151
Email
ddunaway@azwater.com

Frequently asked questions about Awc - Casa Grande South Water Company

Is Awc - Casa Grande South Water Company tap water safe to drink?

EPA monitoring detected 5 contaminants in Awc - Casa Grande South Water Company's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Awc - Casa Grande South Water Company's water?

EPA monitoring detected Copper, Lead, Lead, TTHM, Total Haloacetic Acids (HAA5). The full list with the level and data source for each is above.

How many people does Awc - Casa Grande South Water Company serve?

Awc - Casa Grande South Water Company reports serving 176 people in Arizona, per its EPA record.

Has Awc - Casa Grande South Water Company had any water quality violations?

The EPA has 99 violations on file for Awc - Casa Grande South Water Company, of which 4 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.