Drinking water quality · 2024
· Verified
· PWSID AZ0407088
What's in Avondale, AZ tap water
2 contaminants in Avondale, AZ's water sat at or above a federal limit, led by PFOA (Perfluorooctanoic acid) at 3.4x the limit.
- !2 contaminants at or above a federal limit — worst is PFOA (Perfluorooctanoic acid) at 3.4x
- !3 contaminants within 20% of a limit
- !14 of 27 core regulated contaminants reported — 13 never appear in this report
- ✓No open federal violations
+How this score is calculated
Every system starts at 100. Points come off for measured levels, for the federal violation record, and for how much of the core regulated set the utility actually reported. All three inputs are the utility's own published numbers and EPA's own records.
- −60 contaminants at or above a federal limit
- −12 contaminants within 20% of a limit
- −0 open health-based violations
- −0 open monitoring / reporting violations
- −0 health-based violations resolved in the last 5 years
- −8 core regulated contaminants never reported (14/27)
A 90–100 · B 80–89 · C 70–79 · D 60–69 · F below 60. A system reporting under a third of the core set is capped at C however clean its numbers look — a short report is not a clean bill of health.
Full grading methodology, constant for constant →What to worry about
- PFOA (Perfluorooctanoic acid)3.4× the federal limit13.5 ng/L · limit 4 ng/L
Linked to cancer, liver damage, and immune effects; the EPA set an enforceable limit of 4 parts per trillion.
higher than 95% of U.S. systems
- PFOS (Perfluorooctane sulfonic acid)2.9× the federal limit11.700000000000001 ng/L · limit 4 ng/L
Linked to cancer, thyroid disease, and immune effects; the EPA set an enforceable limit of 4 parts per trillion.
higher than 80% of U.S. systems
- PFHxS (Perfluorohexane sulfonic acid)94% of the federal limit9.4 ng/L · limit 10 ng/L
Regulated by the EPA at 10 parts per trillion and included in the PFAS Hazard Index.
higher than 80% of U.S. systems
- Arsenic83% of the federal limit0–8.3 ug/L · limit 10 ug/L
A known human carcinogen; long-term exposure is linked to skin, bladder, and lung cancer.
higher than 90% of U.S. systems
- Nitrate82% of the federal limit0–8.2 mg/L · limit 10 mg/L
Levels above the federal limit can cause 'blue baby syndrome,' a serious oxygen-transport condition in infants.
higher than 95% of U.S. systems
+25 contaminants were measured and came in below the limitShow all
| Contaminant | Measured | Federal limit |
|---|---|---|
| Chromium, Total | 0–56 ug/L | 100 ug/L |
| Chlorine Free | 0–2 mg/L | 4 mg/L |
| Copper | 0.023–0.49 mg/L | 1.3 mg/L |
| Fluoride | 0–1.1 mg/L | 4 mg/L |
| Uranium | 1.7–4.6 ug/L | 30 ug/L |
| Gross Alpha | 0–1.9 pCi/L | 15 pCi/L |
| Barium | 35–180 ug/L | 2000 ug/L |
| HAA5 | 4.19 ug/L | 60 ug/L |
| Selenium | 0–2.3 ug/L | 50 ug/L |
| Chlorine | 0–180 ug/L | 4000 ug/L |
| Bromide | 330 ug/L | — |
| Germanium | 0.36 ug/L | — |
| Lead | 0.0 mg/L | 0.015 mg/L |
| Lithium | 40.7–114 ug/L | — |
| Manganese | 0.87 ug/L | — |
| Sodium | 88–198 mg/L | — |
| Escherichia coli (E. coli) | 1 % | — |
| Total Coliform | 2 % | 0 % |
| Temperature | 14–42 | — |
| TOC | 0.7–2.8 | — |
| PFBA | 6.5 ng/L | — |
| PFHxA | 12.9 ng/L | — |
| PFBS | 15.6 ng/L | — |
| PFHpA | 3.7 ng/L | — |
| PFPeA | 17.2 ng/L | — |
What this report doesn't tell you
13 of the 27 contaminants a community water system normally reports do not appear anywhere in Avondale, AZ's data. Absent is not the same as absent-from-the-water — it means nobody published a number.
+Full detail: PFAS testing, water source, historical monitoring, and the federal violation record
PFAS — EPA UCMR5 (2023–2025)
2 PFAS compounds above EPA limits in Avondale, 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.
PFOA (Perfluorooctanoic acid)
● Over EPA limit (3.4×)PFOS (Perfluorooctane sulfonic acid)
● Over EPA limit (2.9×)PFHxS (Perfluorohexane sulfonic acid)
● Approaching limit (94%)PFBA
● Detected (no federal limit)PFHxA
● Detected (no federal limit)PFBS
● Detected (no federal limit)PFHpA
● Detected (no federal limit)PFPeA
● Detected (no federal limit)Where your water comes from · EPA SDWIS
Avondale, AZ's drinking water comes from ground water, drawn from 16 sources.
Source
- WL-55-200566 -
- WL-55-501247 -
- WL-55-501288 -
- WL-55-578749 -
- + 12 more
Treatment
- TP001 - CL2, AS
- TP004 - CL2
- TP005 - CL2
- + 3 more
Distribution
Also buys water from PHOENIX CITY OF.
Compliance history
Federal Safe Drinking Water Act violation & enforcement records (EPA SDWIS). A violation is a regulatory determination by the state or EPA — separate from the measured levels above.
- Maximum contaminant level exceededHealth-based12 violations on record · most recent Jan 2006resolved
- Other1 violation on recordresolved
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗