Water Quality in JOHNSTOWN, CO (80534)
EPA violation data for public water systems serving ZIP code 80534.
22
Total Violations
4
Health-Based
18
Monitoring / Reporting
22
Resolved
What does this mean?
22 of 22 violations have been resolved. 4 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 18 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 (22 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Jul 31, 2022 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Jul 31, 2022 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Jul 31, 2022 | Resolved | N/A |
| Surface Water Treatment Rule | Health-Based | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Surface Water Treatment Rule | Health-Based | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Surface Water Treatment Rule | Health-Based | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Surface Water Treatment Rule | Health-Based | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
Lead & Copper Levels
Violation Timeline
2023(3)
Consumer Confidence Rule
71
Consumer Confidence Rule
71
Consumer Confidence Rule
71
2022(3)
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
How Does This Compare?
JOHNSTOWN (80534) has 22 recorded violations, including 4 health-based. All violations have been resolved, which is a positive sign for current water quality. 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.