Kotlik, AK: 9 Health Violations — 62/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Within Kotlik, water safety data for AK reveals moderate quality — federal standards are generally met, but documented exceptions exist in specific service areas.
How Kotlik Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Kotlik Water
- Your city's water systems recorded 61 violations in the past 5 years.
- Average lead level: 0.0007 mg/L.
- Homes built before 1986: 57% — older plumbing may contain lead solder.
- Estimated remediation: $600 per household.
- CDC health risk index: 17.92 — above typical levels.
Who Supplies Your Water in Kotlik
With one provider handling most of Kotlik's residential supply in AK, water service accountability is concentrated in a single utility among the 1 system on record.
Overview
We track water quality and home safety data for 1 ZIP code in Kotlik, Alaska, covering 1 community water system serving approximately 1,166 people.
1 of 1 ZIP code (100%) have recorded EPA violations. 9 health-based violations documented.
Home Safety Score
Average Home Safety Score for Kotlik: C (62/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Kotlik water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0007 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 1 (High Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| E. coli | Microbiological | 26 | 1 |
| Chlorite | Disinfection Byproducts | 22 | 1 |
| Fecal Coliform | Microbiological | 20 | 1 |
| Stage 1 DBP Rule | Treatment Technique | 14 | 1 |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 10 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 99620 | C | 61 | 9 | Kotlik Water System |
All ZIP Codes in Kotlik
- 99620 [C] — 61 violations ⚠
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Updated daily.
Health Outcomes in Kotlik
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Top Contaminants in Kotlik Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Kotlik
With 57% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Two dates define the high-risk tiers of residential plumbing from a lead standpoint: 1970, before which lead pipes were commonly installed for service connections, and 1986, before which lead solder was standard in copper plumbing. A median build year of 1986 places Kotlik's housing distribution well within that older risk zone. The bar chart above breaks down how much of the stock falls into each era — and the pre-1986 share alone represents more than half the residential inventory, making plumbing-era risk a defining characteristic of the local water safety picture.
Over half of homes in Kotlik were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.
Source: U.S. Census Bureau ACS B25034.
Cost Context: What Remediation Means for Kotlik Homeowners
Remediation costs in Kotlik are small relative to typical property values — the cost-to-value ratio here is favorable.
Remediation costs in Kotlik are relatively low compared to home values. The $300–$1,500 estimated range is a small fraction of median property value. Home values are 62% below the Alaska average.
Lead Exposure Risk for Children in Kotlik
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Wherever 57% of local housing was built before solder rules changed — as is the case in Kotlik — a faucet-level sample closes the gap that aggregate utility data cannot.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
What You Can Do in Kotlik
- Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. Filters rated for E. coli can reduce the most common contaminant found in Kotlik's water.
- Check your home's plumbing. With 57% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Kotlik, AK