Water Quality: Glendale, AZ
18 water systems • 18,533 people served
Multiple Health ViolationsWater Quality Summary
Glendale is served by 18 public water systems with a combined service population of 18,533 people, and has 751 EPA Safe Drinking Water Act violations on record. Critically, 41 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Glendale's violation count is 98% above the national average for Arizona. Contaminants associated with violations include Barium, Chlorine Dioxide, Chromium, E. coli, Gross Alpha.
Contaminants Found
Increases blood pressure and causes cardiovascular effects with long-term exposure.
Common source: Natural rock deposits, oil drilling operations, coal power plant waste
EPA limit: 2 mg/L
Can cause anemia in infants and young children; may cause nervous system effects at high levels.
Common source: Water treatment disinfectant used to control taste, odor, and microorganisms
EPA limit: 0.8 mg/L
Hexavalent chromium (Cr-VI) is a known human carcinogen linked to lung and stomach cancers.
Common source: Natural geological deposits, industrial pollution, electroplating discharge
EPA limit: 0.1 mg/L total chromium
Causes gastrointestinal illness; certain strains (e.g., O157:H7) can cause severe kidney failure and death.
Common source: Fecal contamination from humans or animals entering the water supply
EPA limit: Zero (no E. coli permitted in drinking water)
Alpha-emitting radioactive particles increase cancer risk, particularly from bone and other internal cancers.
Common source: Natural uranium and radium in geological formations
EPA limit: 15 pCi/L (excluding radon and uranium)
Hair loss, nail brittleness, and nervous system damage at elevated concentrations.
Common source: Natural geological deposits, mining discharges, oil refinery waste
EPA limit: 0.05 mg/L (50 ppb)
Trihalomethanes and haloacetic acids that increase cancer risk and may cause adverse reproductive outcomes.
Common source: Chlorine disinfection reacting with natural organic matter in source water
EPA limit: TTHM: 0.080 mg/L; HAA5: 0.060 mg/L
Water Systems Serving Glendale
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| VALLEY UTILITIES WATER COMPANY GLENDALE | AZ0407079 | Groundwater | 5,940 | 44 |
| EAST SLOPE WATER COMPANY | AZ0402028 | Groundwater | 1,980 | 29 |
| MESCAL LAKES WATER SYSTEM | AZ0402052 | Groundwater | 1,390 | 59 |
| CLEAR SPRINGS UTILITY MAIN | AZ0402008 | Groundwater | 1,385 | 31 |
| LIVCO WATER COMPANY | AZ0401018 | Groundwater | 1,120 | 42 |
| BACA FLOAT WATER COMPANY | AZ0412037 | Groundwater | 1,090 | 80 |
| MOUNTAIN GLEN WATER SERVIC LINDEN TRAILS | AZ0409090 | Groundwater | 975 | 90 |
| SANDARIO WATER COMPANY | AZ0410093 | Groundwater | 870 | 19 |
| WALNUT CREEK WATER COMPANY | AZ0408078 | Groundwater | 728 | 40 |
| YAVAPAI WATER COMPANY | AZ0413010 | Groundwater | 728 | 25 |
| NACO WATER CO MAIN | AZ0402024 | Groundwater | 658 | 20 |
| EAST SLOPE WATER - WEST | AZ0402094 | Groundwater | 655 | 29 |
| HACIENDA DEL SOL MHP | AZ0407366 | Groundwater | 300 | 14 |
| SUNLAND WATER COMPANY | AZ0411334 | Groundwater | 227 | 65 |
| CROWN KING WATER COMPANY | AZ0413027 | Groundwater | 203 | 82 |
| NACO WATER CO BISBEE | AZ0402112 | Groundwater | 138 | 15 |
| DOUBLE R WATER DISTRIBUTORS, INC. | AZ0408178 | Groundwater | 98 | 23 |
| CLEAR SPRINGS UTILITY WELL 6 | AZ0402049 | Groundwater | 48 | 44 |
Concerned About Your Water?
A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.
Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.
Other Cities in Arizona
Data Sources
Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.