Water Quality in BOX ELDER, MT (59521)
EPA violation data for public water systems serving ZIP code 59521.
21
Total Violations
6
Health-Based
15
Monitoring / Reporting
19
Resolved
What does this mean?
19 of 21 violations have been resolved. 6 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 15 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 (21 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Nitrite | Monitoring | N/A | N/A | Jun 30, 2025 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Lead and Copper Rule | Monitoring | N/A | N/A | Dec 29, 2024 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Dec 29, 2024 | Resolved | N/A |
| E. COLI | Monitoring | 0 | N/A | Oct 18, 2024 | Resolved | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| E. COLI | Monitoring | 0 | N/A | Oct 18, 2024 | Resolved | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| E. COLI | Monitoring | 0 | N/A | Oct 18, 2024 | Resolved | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| Asbestos | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| TTHM | Monitoring | N/A | N/A | Dec 31, 2022 | Active | N/A |
| Total Haloacetic Acids (HAA5) | Monitoring | N/A | N/A | Dec 31, 2022 | Active | N/A |
| Asbestos | Monitoring | N/A | N/A | Sep 30, 2022 | Resolved | N/A |
Lead & Copper Levels
Violation Timeline
2025(1)
Nitrite
03
2024(5)
Lead and Copper Rule
66
Lead and Copper Rule
66
E. COLI
34
E. COLI
34
E. COLI
34
How Does This Compare?
BOX ELDER (59521) has 21 recorded violations, including 6 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.
Reverse Osmosis System
Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.
Targets:Lead, Copper, Arsenic, Mercury, Cadmium
Look for:NSF/ANSI 58 certified
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.