Circle, AK: 37 Violations — 81/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
For households in Circle, AK water data shows a consistently above-average safety picture.
How Circle Compares
Data: EPA SDWIS Last verified: 2026-06-03
Circle Water: The Quick Version
- Your city's water systems recorded 37 violations in the past 5 years.
- Average lead level: 0.0024 mg/L.
- Homes built before 1986: 32% — older plumbing may contain lead solder.
- CDC health risk index: 16.56 — above typical levels.
Water Systems Serving Circle
One utility dominates residential water service in Circle, AK — out of 1 system in federal records.
Overview
We track water quality and home safety data for 1 ZIP code in Circle, Alaska (population ~48), covering 1 community water system serving approximately 110 people region-wide.
1 of 1 ZIP code (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Circle: B (81/100)
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
Circle water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0024 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Contaminant 0700 | Other | 52 | 1 |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 6 | 1 |
| Total Organic Carbon | Disinfection Byproducts | 4 | 1 |
| Revised Total Coliform Rule | Microbiological | 4 | 1 |
| Stage 1 DBP Rule | Treatment Technique | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 99733 | B | 37 | 0 | Circle Washeteria |
All ZIP Codes in Circle
- 99733 [B] — 37 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.
CDC Health Data for Circle
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
Key Contaminants Detected in Circle
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is Circle's Housing Stock?
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Reading the housing data for Circle, with a median build year of 1995, reveals a community where neither old nor new construction dominates. That balanced profile means lead-solder-era plumbing is present throughout a meaningful portion of the residential inventory — with risk concentrated in properties built before 1986 and most acute in those that predate 1970.
Most homes in Circle were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Protecting Children from Lead in Circle
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.
Reading the local data together points toward a structural gap that matters more here than in low-exposure communities. 32% of Circle stock comes from the pre-rule era, and citywide monitoring either approaches or sits beyond the federal benchmark under Lead and Copper Rule sampling. A baseline kit fits the routine-diligence category, with certified filtration available via retailer networks where confirmed faucet results warrant additional measures.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Circle, AK