Water Quality in CHINOOK, MT (59532)
EPA violation data for public water systems serving ZIP code 59532.
9
Total Violations
9
Health-Based
0
Monitoring / Reporting
7
Resolved
What does this mean?
7 of 9 violations have been resolved. 9 are health-based violations, meaning contaminant levels exceeded federal safety limits. Not all violations mean your water is unsafe. The EPA requires reporting even for minor administrative issues.
Violations Detail (9 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Total Haloacetic Acids (HAA5) | Health-Based | N/A | 0.073 | Sep 30, 2025 | Active | N/A |
| Total Haloacetic Acids (HAA5) | Health-Based | N/A | 0.073 | Sep 30, 2025 | Active | N/A |
| Total Haloacetic Acids (HAA5) | Health-Based | N/A | 0.077 | Jun 30, 2025 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Health-Based | N/A | 0.077 | Jun 30, 2025 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Health-Based | N/A | 0.079 | Mar 31, 2025 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Health-Based | N/A | 0.079 | Mar 31, 2025 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Health-Based | N/A | 0.079 | Mar 31, 2025 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Health-Based | N/A | 0.071 | Dec 31, 2024 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Health-Based | N/A | 0.071 | Dec 31, 2024 | Resolved | N/A |
Lead & Copper Levels
Violation Timeline
2025(7)
Total Haloacetic Acids (HAA5)
02
Total Haloacetic Acids (HAA5)
02
Total Haloacetic Acids (HAA5)
02
Total Haloacetic Acids (HAA5)
02
Total Haloacetic Acids (HAA5)
02
Total Haloacetic Acids (HAA5)
02
Total Haloacetic Acids (HAA5)
02
2024(2)
Total Haloacetic Acids (HAA5)
02
Total Haloacetic Acids (HAA5)
02
How Does This Compare?
CHINOOK (59532) has 9 recorded violations, including 9 health-based. 2 remain unresolved. Consider testing your tap water independently for added peace of mind.
Recommended Water Filters
Based on the contaminants detected in your area, these filter types may help improve your water quality.
Activated Carbon Filter
Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.
Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor
Look for:NSF/ANSI 42 & 53 certified
Always look for filters certified by NSF International for the specific contaminants you want to remove.