Drinking water quality · 2024
· Verified
What's in Glendale, AZ tap water
25 contaminants were measured in the Glendale, AZ water system's 2024 annual report. Each is shown below against its federal limit — 2 sit at or above that limit.
- Reporting year
- 2024
- Contaminants measured
- 25
- Over federal limit
- 2
- Approaching the limit
- 0
- Worst contaminant
- Lithium
- Service area
- AZ
PFAS — EPA UCMR5 (2023–2025)
2 PFAS compounds detected in Glendale, AZ
The EPA finalized the first-ever federal drinking-water limits for six PFAS compounds in April 2024. These numbers come straight from EPA's UCMR5 lab dataset — every U.S. system serving more than 3,300 people tested every PFAS sample at an entry point to its distribution system. PFAS not listed below were either tested and not detected, or not yet sampled.
PFBS
● Detected (no federal limit)near national p90 (13.909999999999979 ng/L across detecting U.S. systems)
Lithium
● Detected (no federal limit)above national p90 (76.59999999999991 mg/L across detecting U.S. systems)
Where your water comes from · EPA SDWIS
Glendale, AZ's drinking water comes from ground water, drawn from 14 sources.
Source
- WL-55-625053 - ARROWHEAD
- IN-U070930SI - PYRAMID PEAK
- IN-U070931SI - CHOLLA
- WL-55-506733 -
- + 10 more
Treatment
- TP001 - CLO2, SURFACE WATER
- TP002 - CLO2, SURFACE WATER
- TP023 - CL2
- + 8 more
Distribution
Historical readings · EPA Six-Year Review (2012–2019)
1 contaminant historically over EPA limits in Glendale, AZ
Every U.S. public water system reports compliance-monitoring data to EPA. The Six-Year Review releases the 2012–2019 window as a single dataset — here's what your system reported, year by year. Values shown are the highest detection per analyte per year, compared to the federal MCL.
| Contaminant | Worst detection | EPA limit | Years (2012–2019) |
|---|---|---|---|
TTHM worst: 2013 | 0.101 mg/L 1.3× | 0.08 mg/L | '12'13'14'15'16'17'18'19 |
NITRATE worst: 2016 | 8.6 mg/L 86% | 10 mg/L | '12'13'14'15'16'17'18'19 |
NITRATE NITRITE worst: 2016 | 8.6 mg/L 86% | 10 mg/L | '12'13'14'15'16'17'18'19 |
ARSENIC worst: 2012 | 0.00802 mg/L 80% near national p90 | 0.01 mg/L | '12'13'14'15'16'17'18'19 |
HAA5 worst: 2012 | 0.0324 mg/L within | 0.06 mg/L | '12'13'14'15'16'17'18'19 |
CHROMIUM worst: 2019 | 0.039 mg/L within 3.9× the national p90 | 0.1 mg/L | '12'13'14'15'16'17'18'19 |
RADIUM 226 228 worst: 2014 | 1.8 pCi/L within below national p90 | 5 pCi/L | '14'15'17 |
CHLORITE worst: 2019 | 0.316 mg/L within | 1 mg/L | '19 |
DEHP worst: 2017 | 0.0016 mg/L within | 0.006 mg/L | '17 |
FLUORIDE worst: 2013 | 0.89 mg/L within | 4 mg/L | '12'13'14'15'16'17'18'19 |
CADMIUM worst: 2019 | 0.001 mg/L within below national p90 | 0.005 mg/L | '19 |
GROSS ALPHA worst: 2017 | 2.1 pCi/L within | 15 pCi/L | '14'17 |
BARIUM worst: 2018 | 0.155 mg/L within near national p90 | 2 mg/L | '12'13'14'15'16'17'18'19 |
URANIUM worst: 2014 | 0.0051 ug/L within below national p90 | 30 ug/L | '14'15'17 |
COPPER worst: 2012 | 1.66 mg/L above national p90 | — | '12'15'18 |
LEAD worst: 2018 | 0.0078 mg/L | — | '18 |
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TurbidityA measure of cloudiness from suspended particles in the water. | 0.305 NTUMaximumSystem-wide | 1 NTUTreatment technique | Within the limit |
| TOCTotal organic carbon — a measure of organic material dissolved in the water. | 1.45Running annual avgSystem-wide | None set | Detected — no federal limit |
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChlorineA disinfectant added to drinking water to kill bacteria and viruses. | 1.12 mg/LAverageSystem-wide | 4 mg/LMRDL | Within the limit |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Chromium, TotalTotal chromium — the sum of all chromium forms, from natural deposits and industrial discharge. | 10 ug/LAverageSystem-wide | 100 ug/LMCL | Within the limit |
| SeleniumA trace element from natural deposits and industrial discharge. | 1 ug/LAverageSystem-wide | 50 ug/LMCL | Within the limit |
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Combined RadiumCombined radium-226 and radium-228 — naturally occurring radioactive elements. | 0.4 pCi/LAverageSystem-wide | 5 pCi/LMCL | Within the limit |
Microbial
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Total ColiformA group of bacteria used as an indicator of overall water-system sanitation. | 0AverageSystem-wide | 0MCLG | None detected |
PFAS ("forever chemicals")
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Hexafluoropropylene oxide dimer acidHFPO-DA ('GenX chemicals'), a newer-generation PFAS replacement compound. | Not detected ng/LHighest single sampleSystem-wide | 10 ng/LMCLG | None detected |
| Perfluorohexanesulfonic acidPerfluorohexanesulfonic acid, a PFAS 'forever chemical.' | Not detected ng/LRangeSystem-wide | 10 ng/LMCLG | None detected |
| Perfluorononanoic acidPerfluorononanoic acid, a PFAS 'forever chemical.' | Not detected ng/LRangeSystem-wide | 10 ng/LMCLG | None detected |
| PFOAPerfluorooctanoic acid, a PFAS 'forever chemical' once used in nonstick and stain-resistant products. | Not detected ng/LHighest single sampleSystem-wide | 0 ng/LMCLG | None detected |
| PFOSPerfluorooctanesulfonic acid, a PFAS 'forever chemical' once used in firefighting foam and coatings. | Not detected ng/LRangeSystem-wide | 0 ng/LMCLG | None detected |
People also ask about Glendale, AZ's water
+Is Glendale, AZ tap water safe to drink in 2024?
The 2024 Consumer Confidence Report for the Glendale, AZ water utility lists 2 contaminants at or above the federal limit: Lithium and Copper. Whether that means the water is "unsafe" depends on which contaminant, how long the exposure, and individual health factors. The table on this page shows the measured value, the federal threshold, and the regulated statistic used for compliance.
+What contaminants are in Glendale, AZ tap water?
25 contaminants were measured in Glendale, AZ's 2024 Consumer Confidence Report, spanning metals, pfas ("forever chemicals"), and disinfection byproducts. 22 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Which contaminants exceed federal limits in Glendale, AZ tap water?
2 contaminants in Glendale, AZ's 2024 report sit at or above the federal limit: Lithium (6.8× the limit); Copper (1.6× the limit). The EPA enforces these limits against the regulated reporting statistic — typically a running annual average or 90th percentile — not a one-off sample spike.
+What is the worst contaminant in Glendale, AZ tap water?
The contaminant with the highest measured value relative to its federal limit in the 2024 report is Lithium, at 6.8× the federal threshold. It belongs to the metals family of contaminants.
+Where does the data on this page come from?
Every value is transcribed from Glendale, AZ's 2024 Consumer Confidence Report — the annual drinking-water report every U.S. public water utility is required by federal law to publish. The original source document is archived and viewable on this site. A water-quality report covers an entire service area, not a single address.
+How often is Glendale, AZ's water quality data updated?
Each U.S. public water utility publishes one Consumer Confidence Report per year, covering the prior calendar year's measurements. This page reflects the 2024 report; a new report will replace it once the utility publishes its next annual update.