Chromium-6 in Miles City, MT Drinking Water
Chromium-6 data for Miles City, Montana · 10,388 residents · 1 ZIP code
Water quality records for Miles City, Montana show Chromium-6 detections on file — a finding that places it among the contaminants worth tracking for this area.
Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-05-14
Chromium-6 in Miles City Tap Water
Miles City, Montana has 6 EPA violations related to chromium-6 in drinking water.
This analysis covers 10,388 residents across 1 ZIP code in Miles City.
Miles City's overall water quality grade is D (54/100).
Is Chromium-6 in Miles City 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.
EPA Violations for Chromium-6 in Miles City
| Date | Violation Type | Status | ZIP Code |
|---|---|---|---|
| 2024-04-01 | Chromium-6 (Known) | Known | 59301 |
| 2024-01-01 | Chromium-6 (Known) | Known | 59301 |
| 2022-10-01 | Chromium-6 (Resolved) | Resolved | 59301 |
| 2022-07-01 | Chromium-6 (Resolved) | Resolved | 59301 |
| 2022-04-01 | Chromium-6 (Resolved) | Resolved | 59301 |
| 2022-01-01 | Chromium-6 (Resolved) | Resolved | 59301 |
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 Miles City 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.