California, KY - Home Safety 67/100
1 ZIP code · 3 water systems · Updated
ZipCheckup grade for California: C.
A mixed picture - some signals here are worth your attention.
California, KY holds a middle-tier grade; review the underlying water system records for the reasons behind it.
How California Compares
Data: EPA SDWIS
Key Facts for California Residents
- Average of reported 90th-percentile lead results: 0.0027 mg/L.
- Homes built before 1986: 53% - older plumbing may contain lead solder.
- Estimated remediation: $500 per household.
California's Water Providers
Among 3 systems linked to California, KY, the 3 biggest by population served appear below.
- C
- C
- C
Overview
We track home safety data for 1 ZIP code in California, Kentucky (population ~4,606), covering 3 community water systems serving approximately 266,949 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.
The available EPA record reports 0 violations for 1 ZIP code with a reported violation count.
Home Safety Score
Average Home Safety Score for California: C (67/100)
Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| PFAS MCL Screen | UCMR 5 testing against the covered federal MCLs |
| Radon Risk | EPA radon zone classification |
| Annual AQI | EPA AirData county-year median with at least 90 observed days |
Water Sources
California water systems draw from: Surface water.
Lead & Copper
- Average of reported 90th-percentile lead results: 0.0027 mg/L (EPA action level: 0.015 mg/L)
- 0 of 1 ZIP code with known status exceed the EPA lead action level
Radon Risk
1 of 1 ZIP records with known zones is in EPA Radon Zone 2.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 41007 | C | Northern Kentucky Water District | 259,949 |
All ZIP Codes in California
- 41007 [C]
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
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
California Infrastructure Age
With 53% of homes built before 1986, lead solder in plumbing is a potential concern. Federal law banned lead solder in drinking-water plumbing in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Median construction year in California: 1985, set against the 1986 federal lead limits for new plumbing.
Over half of homes in California were built before 1986, when federal law began restricting lead solder in drinking-water plumbing. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.
Source: U.S. Census Bureau ACS B25034.
How Remediation Costs Compare in California
How large is the remediation estimate next to home prices in California? Small in relative terms: it amounts to 1% of the median value or less, although the dollar figure below is still an estimate and actual costs vary by property and contractor.
Estimated remediation costs in California can be compared with local home values. The $300–$800 estimated range can be set against the median property value; actual costs vary by home. Home values are 98% above the Kentucky average.
California: Lead Risk & Vulnerable Populations
Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
California: NFIP Claim Records and Water-Quality Context
Historical NFIP data for California contains 27 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $20,283. Among ZIP codes with claim records, 100% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The $500 remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.
Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.
Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.
What You Can Do in California
- Test your water at home. City-level data shows averages - your tap may differ. Check the certification, price and turnaround time of any water test kit or lab service.
- Install a certified water filter. Choose a pitcher or under-sink filter certified to reduce the specific contaminants of concern.
- Check your home's plumbing. With 53% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for California, KY