Water Quality in CHIGNIK BAY, AK (99564)
EPA violation data for public water systems serving ZIP code 99564.
50
Total Violations
4
Health-Based
46
Monitoring / Reporting
44
Resolved
What does this mean?
44 of 50 violations have been resolved. 4 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 46 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 (50 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Aug 31, 2025 | Active | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Jul 31, 2025 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Jul 31, 2025 | Active | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Jun 30, 2025 | Resolved | N/A |
| Surface Water Treatment Rule | Health-Based | N/A | N/A | May 31, 2025 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | May 11, 2025 | Active | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | May 1, 2025 | Active | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Apr 30, 2025 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Mar 31, 2025 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Feb 28, 2025 | Resolved | N/A |
Lead & Copper Levels
Violation Timeline
2025(10)
Revised Total Coliform Rule
2C
Surface Water Treatment Rule
36
Revised Total Coliform Rule
2C
Surface Water Treatment Rule
36
Surface Water Treatment Rule
41
Revised Total Coliform Rule
4C
Revised Total Coliform Rule
2D
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
2024(23)
Surface Water Treatment Rule
36
Lead and Copper Rule
52
Chlorine
27
Surface Water Treatment Rule
36
Chlorine
27
Revised Total Coliform Rule
3A
Chlorine
27
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
Chlorine
27
Surface Water Treatment Rule
36
Chlorine
27
Surface Water Treatment Rule
36
Revised Total Coliform Rule
3A
Chlorine
27
Chlorine
27
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
Chlorine
27
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
How Does This Compare?
CHIGNIK BAY (99564) has 50 recorded violations, including 4 health-based. 6 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.