Water Quality in DENVER, CO (80202)
EPA violation data for public water systems serving ZIP code 80202.
108
Total Violations
37
Health-Based
71
Monitoring / Reporting
103
Resolved
What does this mean?
103 of 108 violations have been resolved. 37 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 71 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 (108 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 30, 2025 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 30, 2025 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 30, 2025 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 30, 2025 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 30, 2025 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 30, 2025 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 30, 2025 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Jun 30, 2025 | Active | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Jun 30, 2025 | Active | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Apr 10, 2025 | Active | N/A |
Lead & Copper Levels
Violation Timeline
2025(26)
Lead and Copper Rule
66
Lead and Copper Rule
66
Lead and Copper Rule
66
Lead and Copper Rule
66
Lead and Copper Rule
66
Lead and Copper Rule
66
Lead and Copper Rule
66
Lead and Copper Rule
51
Lead and Copper Rule
51
Revised Total Coliform Rule
5A
Revised Total Coliform Rule
5A
Stage 2 Disinfectants and Disinfection Byproducts Rule
35
Stage 2 Disinfectants and Disinfection Byproducts Rule
35
Stage 2 Disinfectants and Disinfection Byproducts Rule
35
Gross Alpha, Excl. Radon and U
03
Combined Uranium
03
Gross Alpha, Excl. Radon and U
03
Gross Alpha, Excl. Radon and U
03
Combined Radium (-226 and -228)
03
Combined Radium (-226 and -228)
03
Combined Radium (-226 and -228)
03
Gross Alpha, Excl. Radon and U
03
Combined Uranium
03
Combined Uranium
03
Combined Uranium
03
Combined Radium (-226 and -228)
03
2024(37)
Interim Enhanced Surface Water Treatment Rule
44
Interim Enhanced Surface Water Treatment Rule
44
Interim Enhanced Surface Water Treatment Rule
44
Interim Enhanced Surface Water Treatment Rule
44
Interim Enhanced Surface Water Treatment Rule
44
Interim Enhanced Surface Water Treatment Rule
44
Interim Enhanced Surface Water Treatment Rule
44
Interim Enhanced Surface Water Treatment Rule
44
TTHM
02
TTHM
02
TTHM
02
TTHM
02
Interim Enhanced Surface Water Treatment Rule
38
Interim Enhanced Surface Water Treatment Rule
38
Interim Enhanced Surface Water Treatment Rule
38
Interim Enhanced Surface Water Treatment Rule
44
Interim Enhanced Surface Water Treatment Rule
44
Interim Enhanced Surface Water Treatment Rule
44
Interim Enhanced Surface Water Treatment Rule
44
Interim Enhanced Surface Water Treatment Rule
44
Interim Enhanced Surface Water Treatment Rule
44
Interim Enhanced Surface Water Treatment Rule
44
Interim Enhanced Surface Water Treatment Rule
44
Interim Enhanced Surface Water Treatment Rule
38
Interim Enhanced Surface Water Treatment Rule
38
Interim Enhanced Surface Water Treatment Rule
38
Interim Enhanced Surface Water Treatment Rule
44
Interim Enhanced Surface Water Treatment Rule
44
Interim Enhanced Surface Water Treatment Rule
44
Interim Enhanced Surface Water Treatment Rule
44
Interim Enhanced Surface Water Treatment Rule
44
Interim Enhanced Surface Water Treatment Rule
44
Interim Enhanced Surface Water Treatment Rule
44
Interim Enhanced Surface Water Treatment Rule
44
Public Notice
75
Public Notice
76
Public Notice
76
How Does This Compare?
DENVER (80202) has 108 recorded violations, including 37 health-based. 5 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.