Chromium-6 in Arizona Drinking Water — 8 ZIPs Tested
EPA data analysis for chromium-6 in Arizona drinking water systems
Chromium-6 Contamination in Arizona
ZipCheckup analyzed drinking water data across 553 ZIP codes in Arizona for chromium-6 contamination. 8 ZIP codes have reported chromium-6 detections, and 8 have EPA violations on record.
The violation rate for chromium-6 in Arizona is 1.4% of all ZIP codes — roughly in line with the national average.
EPA Standard for Chromium-6
The EPA maximum contaminant level (MCL) for chromium-6 is 100 ppb (total chromium MCL), governed by the National Primary Drinking Water Regulations. Water systems that exceed this limit must take corrective action and notify consumers.
Worst ZIP Codes for Chromium-6 in Arizona
These ZIP codes reported the highest chromium-6 levels in Arizona based on CCR reports and EPA data:
Lowest Chromium-6 Levels in Arizona
These ZIP codes had the lowest reported chromium-6 detections in Arizona:
Health Effects of Chromium-6
How to Remove Chromium-6 From Drinking Water
The most effective treatment for chromium-6 removal is Reverse Osmosis or Strong-Base Anion Exchange. Look for filters certified under NSF 58 standards.
Check Your ZIP Code
Use the ZipCheckup water quality search to see chromium-6 data for your specific water system in Arizona.
Worst ZIP Codes for Chromium-6 in Arizona
Ranked by highest chromium-6 detection level.
| Rank | ZIP Code | City | Level Detected | EPA Limit | Status |
|---|---|---|---|---|---|
| 1 | 86301 | Prescott | 0.14 ppm | 0.1 ppm | Exceeds |
| 2 | 86302 | Prescott | 0.14 ppm | 0.1 ppm | Exceeds |
| 3 | 86303 | Prescott | 0.14 ppm | 0.1 ppm | Exceeds |
| 4 | 86304 | Prescott | 0.14 ppm | 0.1 ppm | Exceeds |
| 5 | 86305 | Prescott | 0.14 ppm | 0.1 ppm | Exceeds |
| 6 | 86313 | Prescott | 0.14 ppm | 0.1 ppm | Exceeds |
| 7 | 86315 | Prescott Valley | 0.14 ppm | 0.1 ppm | Exceeds |
| 8 | 86338 | Skull Valley | 0.14 ppm | 0.1 ppm | Exceeds |
Lowest Chromium-6 Levels in Arizona
Cities with Chromium-6 Data in Arizona
3 cities in Arizona have chromium-6 testing data available.