Chromium-6 in Leonia, NJ Drinking Water
Chromium-6 data for Leonia, New Jersey · 13,155 residents · 1 ZIP code
Not every city shows Chromium-6 in its water data; in Leonia, New Jersey, federal sampling has confirmed its presence at detectable levels in at least one recent reporting cycle.
Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-05-14
Chromium-6 in Leonia Tap Water
Chromium-6 has been detected in Leonia, New Jersey drinking water at a maximum level of 800 ppb — 8x the EPA MCL.
This analysis covers 13,155 residents across 1 ZIP code in Leonia.
Leonia's overall water quality grade is C (55/100).
Is Chromium-6 in Leonia Water Safe?
If you live in an affected ZIP code, consider installing a reverse osmosis or strong-base anion exchange filter certified under NSF 58 and testing your water independently.
Chromium-6 Levels by ZIP Code
| ZIP Code | Chromium-6 Level | EPA Limit | Status |
|---|---|---|---|
| 07605 | 800 ppb | 100 ppb (total chromium MCL) | Exceeds limit |
Average chromium-6 level across Leonia: 800 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 Leonia 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.