Water Quality in NAPAKIAK, AK (99634)
EPA violation data for public water systems serving ZIP code 99634.
59
Total Violations
4
Health-Based
55
Monitoring / Reporting
59
Resolved
What does this mean?
59 of 59 violations have been resolved. 4 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 55 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 (59 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Combined Radium (-226 and -228) | Monitoring | N/A | N/A | Jun 30, 2025 | Resolved | N/A |
| Combined Uranium | Monitoring | N/A | N/A | Jun 30, 2025 | Resolved | N/A |
| Gross Alpha, Excl. Radon and U | Monitoring | N/A | N/A | Jun 30, 2025 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Apr 30, 2025 | Resolved | N/A |
| Combined Uranium | Monitoring | N/A | N/A | Mar 31, 2025 | Resolved | N/A |
| Gross Alpha, Excl. Radon and U | Monitoring | N/A | N/A | Mar 31, 2025 | Resolved | N/A |
| Combined Radium (-226 and -228) | Monitoring | N/A | N/A | Mar 31, 2025 | Resolved | N/A |
| Combined Radium (-226 and -228) | Monitoring | N/A | N/A | Dec 31, 2024 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Dec 31, 2024 | Resolved | N/A |
| Combined Uranium | Monitoring | N/A | N/A | Dec 31, 2024 | Resolved | N/A |
Lead & Copper Levels
Violation Timeline
2025(7)
Combined Radium (-226 and -228)
03
Combined Uranium
03
Gross Alpha, Excl. Radon and U
03
Revised Total Coliform Rule
3A
Combined Uranium
03
Gross Alpha, Excl. Radon and U
03
Combined Radium (-226 and -228)
03
2024(34)
Combined Radium (-226 and -228)
03
Lead and Copper Rule
52
Combined Uranium
03
Gross Alpha, Excl. Radon and U
03
Combined Uranium
03
Gross Alpha, Excl. Radon and U
03
Combined Radium (-226 and -228)
03
Tetrachloroethylene
03
Combined Uranium
03
CHLOROBENZENE
03
Combined Radium (-226 and -228)
03
1,2-Dichloropropane
03
Trichloroethylene
03
1,1,2-Trichloroethane
03
Gross Alpha, Excl. Radon and U
03
Vinyl chloride
03
Carbon tetrachloride
03
Toluene
03
Benzene
03
trans-1,2-Dichloroethylene
03
1,1,1-Trichloroethane
03
1,2-Dichloroethane
03
Styrene
03
o-Dichlorobenzene
03
1,2,4-Trichlorobenzene
03
cis-1,2-Dichloroethylene
03
Xylenes, Total
03
DICHLOROMETHANE
03
p-Dichlorobenzene
03
Ethylbenzene
03
1,1-Dichloroethylene
03
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
How Does This Compare?
NAPAKIAK (99634) has 59 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.
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
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.