Water Quality in COPAN, OK (74022)
EPA violation data for public water systems serving ZIP code 74022.
237
Total Violations
106
Health-Based
131
Monitoring / Reporting
227
Resolved
What does this mean?
227 of 237 violations have been resolved. 106 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 131 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 (237 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Total Haloacetic Acids (HAA5) | Monitoring | N/A | N/A | Jun 29, 2025 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Monitoring | N/A | N/A | Jun 29, 2025 | Resolved | N/A |
| TTHM | Monitoring | N/A | N/A | Jun 29, 2025 | Resolved | N/A |
| TTHM | Monitoring | N/A | N/A | Jun 29, 2025 | Resolved | N/A |
| Interim Enhanced Surface Water Treatment Rule | Health-Based | N/A | N/A | Apr 30, 2025 | Resolved | N/A |
| Interim Enhanced Surface Water Treatment Rule | Health-Based | N/A | N/A | Apr 30, 2025 | Resolved | N/A |
| Interim Enhanced Surface Water Treatment Rule | Health-Based | N/A | N/A | Apr 30, 2025 | Resolved | N/A |
| Interim Enhanced Surface Water Treatment Rule | Health-Based | N/A | N/A | Apr 30, 2025 | Resolved | N/A |
| Surface Water Treatment Rule | Health-Based | N/A | N/A | Apr 30, 2025 | Resolved | N/A |
| Surface Water Treatment Rule | Health-Based | N/A | N/A | Apr 30, 2025 | Resolved | N/A |
Lead & Copper Levels
Violation Timeline
2025(47)
Total Haloacetic Acids (HAA5)
35
Total Haloacetic Acids (HAA5)
35
TTHM
35
TTHM
35
Interim Enhanced Surface Water Treatment Rule
43
Interim Enhanced Surface Water Treatment Rule
44
Interim Enhanced Surface Water Treatment Rule
44
Interim Enhanced Surface Water Treatment Rule
43
Surface Water Treatment Rule
41
Surface Water Treatment Rule
41
Total Haloacetic Acids (HAA5)
02
Interim Enhanced Surface Water Treatment Rule
43
Interim Enhanced Surface Water Treatment Rule
44
TTHM
02
TTHM
02
Total Haloacetic Acids (HAA5)
35
Total Haloacetic Acids (HAA5)
35
Total Haloacetic Acids (HAA5)
35
Surface Water Treatment Rule
41
Surface Water Treatment Rule
41
Surface Water Treatment Rule
41
Surface Water Treatment Rule
41
TTHM
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
Surface Water Treatment Rule
41
Surface Water Treatment Rule
41
TTHM
35
TTHM
35
Interim Enhanced Surface Water Treatment Rule
44
Interim Enhanced Surface Water Treatment Rule
43
TTHM
35
Public Notice
75
Surface Water Treatment Rule
41
Interim Enhanced Surface Water Treatment Rule
44
Interim Enhanced Surface Water Treatment Rule
43
Interim Enhanced Surface Water Treatment Rule
43
Surface Water Treatment Rule
41
Interim Enhanced Surface Water Treatment Rule
44
Surface Water Treatment Rule
41
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
38
2024(145)
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
38
Interim Enhanced Surface Water Treatment Rule
38
Total Haloacetic Acids (HAA5)
02
TTHM
02
Total Haloacetic Acids (HAA5)
02
Total Haloacetic Acids (HAA5)
02
Total Haloacetic Acids (HAA5)
02
Total Haloacetic Acids (HAA5)
02
Interim Enhanced Surface Water Treatment Rule
38
TTHM
02
TTHM
02
Total Haloacetic Acids (HAA5)
02
TTHM
35
TTHM
35
Total Haloacetic Acids (HAA5)
35
Total Haloacetic Acids (HAA5)
35
Public Notice
75
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
38
CARBON, TOTAL
27
Revised Total Coliform Rule
3A
Chlorine
27
Chlorine
27
Chlorine
27
CARBON, TOTAL
27
CARBON, TOTAL
27
CARBON, TOTAL
27
CARBON, TOTAL
27
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
CARBON, TOTAL
27
CARBON, TOTAL
27
Chlorine
27
CARBON, TOTAL
27
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
38
Revised Total Coliform Rule
3A
LEAD AND COPPER RULE REVISIONS
4G
LEAD AND COPPER RULE REVISIONS
2E
Lead and Copper Rule
52
Interim Enhanced Surface Water Treatment Rule
38
TTHM
02
Lead and Copper Rule
52
TTHM
02
TTHM
02
Lead and Copper Rule
52
TTHM
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
TTHM
02
Interim Enhanced Surface Water Treatment Rule
38
Interim Enhanced Surface Water Treatment Rule
38
TTHM
02
Lead and Copper Rule
52
Total Haloacetic Acids (HAA5)
02
Interim Enhanced Surface Water Treatment Rule
38
TTHM
35
TTHM
35
Total Haloacetic Acids (HAA5)
35
TTHM
35
Total Haloacetic Acids (HAA5)
35
Total Haloacetic Acids (HAA5)
35
Public Notice
75
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
38
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
38
Interim Enhanced Surface Water Treatment Rule
38
TTHM
02
TTHM
02
Total Haloacetic Acids (HAA5)
02
Total Haloacetic Acids (HAA5)
02
Total Haloacetic Acids (HAA5)
02
TTHM
02
Consumer Confidence Rule
71
Consumer Confidence Rule
71
TTHM
02
TTHM
02
TTHM
02
Interim Enhanced Surface Water Treatment Rule
38
Total Haloacetic Acids (HAA5)
02
Total Haloacetic Acids (HAA5)
02
Total Haloacetic Acids (HAA5)
02
Interim Enhanced Surface Water Treatment Rule
38
Interim Enhanced Surface Water Treatment Rule
38
TTHM
35
TTHM
35
TTHM
35
Public Notice
75
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
38
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
38
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Chlorine
27
Interim Enhanced Surface Water Treatment Rule
38
Interim Enhanced Surface Water Treatment Rule
38
TTHM
02
TTHM
02
TTHM
02
TTHM
02
TTHM
02
CARBON, TOTAL
27
CARBON, TOTAL
27
CARBON, TOTAL
27
CARBON, TOTAL
27
CARBON, TOTAL
27
Chlorine
27
CARBON, TOTAL
27
CARBON, TOTAL
27
CARBON, TOTAL
27
Chlorine
27
Interim Enhanced Surface Water Treatment Rule
38
Interim Enhanced Surface Water Treatment Rule
38
TTHM
02
Chlorine
27
TTHM
35
TTHM
35
TTHM
35
Public Notice
75
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
38
How Does This Compare?
COPAN (74022) has 237 recorded violations, including 106 health-based. 10 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.