Alleghany, CA Water Safety: 83/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Based on current monitoring, Alleghany holds an above-average drinking water safety record for CA — violations are infrequent and typically minor when they do appear.
How Alleghany Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Alleghany Residents
- Average lead level: 0.0038 mg/L.
- Homes built before 1986: 82% — older plumbing may contain lead solder.
- Estimated remediation: $400 per household.
- CDC health risk index: 15.46 — above typical levels.
Alleghany's Water Providers
As of current federal records, Alleghany, CA is served primarily by one water utility among 1 tracked system. That single provider handles infrastructure investment, rate adjustments, and regulatory reporting under EPA oversight.
Overview
We track water quality and home safety data for 1 ZIP code in Alleghany, California (population ~35), covering 1 community water system serving approximately 82 people region-wide.
No EPA violations recorded across any ZIP codes in Alleghany — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Alleghany: B (83/100)
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
Alleghany water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0038 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 95910 | B | Alleghany County W.d. | 82 |
All ZIP Codes in Alleghany
- 95910 [B]
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.
Alleghany Community Health Snapshot
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
Alleghany Infrastructure Age
With 82% 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
Because the majority of Alleghany's housing predates 1986, when lead solder was banned from new plumbing, the median build year of 1901 reflects a city where lead-era plumbing materials are common rather than exceptional.
Over half of homes in Alleghany 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.
Alleghany: Lead Risk & Vulnerable Populations
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.
When older housing represents 82% of the local inventory or aggregate readings approach the federal action level, an in-home check becomes the standard way to translate citywide averages into the specific reality of an individual Alleghany address.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Alleghany, CA