Chromium-6 in Skull Valley, AZ Drinking Water
Chromium-6 data for Skull Valley, Arizona · 42,217 residents · 1 ZIP code
For residents of Skull Valley, Arizona, Chromium-6 has appeared in public water supply sampling data.
Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-05-14
Chromium-6 in Skull Valley Tap Water
Chromium-6 has been detected in Skull Valley, Arizona drinking water at a maximum level of 0.14 ppb — below the EPA MCL of 100 ppb (total chromium MCL).
This analysis covers 42,217 residents across 1 ZIP code in Skull Valley.
Skull Valley's overall water quality grade is D (53/100).
Is Chromium-6 in Skull Valley Water Safe?
Chromium-6 was detected in Skull Valley water but currently falls within EPA limits. However, some health organizations argue the EPA MCL may not be protective enough.
If you are concerned, a reverse osmosis or strong-base anion exchange filter can reduce chromium-6 levels further.
Chromium-6 Levels by ZIP Code
| ZIP Code | Chromium-6 Level | EPA Limit | Status |
|---|---|---|---|
| 86338 | 0.14 ppm | 100 ppb (total chromium MCL) | OK |
Average chromium-6 level across Skull Valley: 0.14 ppb
Health Effects of Chromium-6
- Stomach and intestinal cancer (likely carcinogen via ingestion)
- Known carcinogen when inhaled
- Liver and kidney damage
- Reproductive and developmental harm
Health risk severity: High. Governed by the National Primary Drinking Water Regulations.
How Chromium-6 Gets Into Drinking Water
- Industrial discharge from steel and pulp mills
- Natural erosion of chromium deposits
- Coal ash disposal sites
- Cooling tower discharge
What to Do About Chromium-6 in Skull Valley Water
- Reverse osmosis systems are most effective
- Strong-base anion exchange can reduce chromium-6
- Standard carbon filters are NOT effective for chromium-6
- Look for NSF 58 certification
Look for filters certified under NSF 58 for chromium-6 removal.