Water Quality in HELENA, MT (59620)
EPA violation data for public water systems serving ZIP code 59620.
13
Total Violations
3
Health-Based
10
Monitoring / Reporting
7
Resolved
What does this mean?
7 of 13 violations have been resolved. 3 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 10 are monitoring or reporting violations (missed testing deadlines or late paperwork — not necessarily a water quality issue). Not all violations mean your water is unsafe. The EPA requires reporting even for minor administrative issues.
Violations Detail (13 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Revised Total Coliform Rule | Health-Based | N/A | N/A | May 23, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | May 23, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | May 23, 2023 | Resolved | N/A |
| E. COLI | Monitoring | 0 | N/A | Apr 19, 2023 | Resolved | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| E. COLI | Monitoring | 0 | N/A | Apr 19, 2023 | Resolved | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| E. COLI | Monitoring | 0 | N/A | Apr 19, 2023 | Resolved | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| E. COLI | Monitoring | 0 | N/A | Apr 19, 2023 | Resolved | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| TTHM | Monitoring | N/A | N/A | Dec 31, 2022 | Active | N/A |
| TTHM | Monitoring | N/A | N/A | Dec 31, 2022 | Active | N/A |
| TTHM | Monitoring | N/A | N/A | Dec 31, 2022 | Active | N/A |
Lead & Copper Levels
Violation Timeline
2023(7)
Revised Total Coliform Rule
2A
Revised Total Coliform Rule
2A
Revised Total Coliform Rule
2A
E. COLI
34
E. COLI
34
E. COLI
34
E. COLI
34
2022(6)
TTHM
27
TTHM
27
TTHM
27
Total Haloacetic Acids (HAA5)
27
Total Haloacetic Acids (HAA5)
27
Total Haloacetic Acids (HAA5)
27
How Does This Compare?
HELENA (59620) has 13 recorded violations, including 3 health-based. 6 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
UV Water Purifier
Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.
Targets:E. coli, Coliform, Giardia, Cryptosporidium
Look for:NSF/ANSI 55 (Class A) certified
Always look for filters certified by NSF International for the specific contaminants you want to remove.