Water Quality in SHAKTOOLIK, AK (99771)
EPA violation data for public water systems serving ZIP code 99771.
98
Total Violations
3
Health-Based
95
Monitoring / Reporting
98
Resolved
What does this mean?
98 of 98 violations have been resolved. 3 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 95 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 (98 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Interim Enhanced Surface Water Treatment Rule | Monitoring | N/A | N/A | Aug 31, 2025 | Resolved | N/A |
| Chlorine | Monitoring | N/A | N/A | Aug 31, 2025 | Resolved | Eye and nose irritation; stomach discomfort |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Aug 31, 2025 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Aug 31, 2025 | Resolved | N/A |
| Interim Enhanced Surface Water Treatment Rule | Health-Based | N/A | N/A | Jul 31, 2025 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Jun 30, 2025 | Resolved | N/A |
| Interim Enhanced Surface Water Treatment Rule | Monitoring | N/A | N/A | Jun 30, 2025 | Resolved | N/A |
| Chlorine | Monitoring | N/A | N/A | May 31, 2025 | Resolved | Eye and nose irritation; stomach discomfort |
| Interim Enhanced Surface Water Treatment Rule | Health-Based | N/A | N/A | May 31, 2025 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | May 31, 2025 | Resolved | N/A |
Lead & Copper Levels
Violation Timeline
2025(22)
Interim Enhanced Surface Water Treatment Rule
38
Chlorine
27
Revised Total Coliform Rule
3A
Surface Water Treatment Rule
36
Interim Enhanced Surface Water Treatment Rule
44
Surface Water Treatment Rule
36
Interim Enhanced Surface Water Treatment Rule
38
Chlorine
27
Interim Enhanced Surface Water Treatment Rule
44
Surface Water Treatment Rule
36
Revised Total Coliform Rule
3A
Surface Water Treatment Rule
36
Interim Enhanced Surface Water Treatment Rule
38
Surface Water Treatment Rule
36
Interim Enhanced Surface Water Treatment Rule
38
Chlorine
27
Revised Total Coliform Rule
3A
Chlorine
27
Interim Enhanced Surface Water Treatment Rule
38
Chlorine
27
Surface Water Treatment Rule
36
Revised Total Coliform Rule
3A
2024(38)
Total Haloacetic Acids (HAA5)
27
Total Haloacetic Acids (HAA5)
27
TTHM
27
TTHM
27
Interim Enhanced Surface Water Treatment Rule
38
Revised Total Coliform Rule
3A
Chlorine
27
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
Revised Total Coliform Rule
3A
Chlorine
27
Interim Enhanced Surface Water Treatment Rule
38
Total Haloacetic Acids (HAA5)
27
Surface Water Treatment Rule
36
Chlorine
27
Interim Enhanced Surface Water Treatment Rule
38
TTHM
27
TTHM
27
Total Haloacetic Acids (HAA5)
27
Revised Total Coliform Rule
3A
Chlorine
27
Revised Total Coliform Rule
3A
Interim Enhanced Surface Water Treatment Rule
38
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
Interim Enhanced Surface Water Treatment Rule
38
Surface Water Treatment Rule
36
Chlorine
27
Interim Enhanced Surface Water Treatment Rule
38
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
Chlorine
27
Interim Enhanced Surface Water Treatment Rule
38
Revised Total Coliform Rule
3A
Surface Water Treatment Rule
36
Interim Enhanced Surface Water Treatment Rule
38
Interim Enhanced Surface Water Treatment Rule
38
Surface Water Treatment Rule
36
How Does This Compare?
SHAKTOOLIK (99771) has 98 recorded violations, including 3 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
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.