Bonsall, CA Home Safety: Home Safety 92/100
1 ZIP code · 3 water systems · Updated
ZipCheckup grade for Bonsall: A.
No federal data flags a major home-safety concern for this ZIP.
Water systems serving Bonsall hold a strong EPA compliance record - the city places among the better-performing areas in CA with few health-based violations on file.
How Bonsall Compares
Data: EPA SDWIS
What You Should Know About Bonsall Water
- Average lead level: 0.0027 mg/L.
- Homes built before 1986: 45% - older plumbing may contain lead solder.
- Estimated remediation: $1,200 per household.
- CDC health risk index: 10.18.
Who Supplies Your Water in Bonsall
Federal records list 3 water systems tied to Bonsall, CA. Of those, 3 are the primary providers, meaning service conditions, rate structures, and compliance histories can differ depending on where a property sits.
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Overview
We track home safety data for 1 ZIP code in Bonsall, California (population ~4,978), covering 3 community water systems serving approximately 230,256 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 Bonsall: A (92/100)
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
Bonsall water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 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
Dominant radon zone: Zone 3 (Low Risk)
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 92003 | A | Rainbow Municipal Water District | 23,536 |
All ZIP Codes in Bonsall
- 92003 [A]
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.
Health Outcomes in Bonsall
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
Housing & Infrastructure in Bonsall
With 45% 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
Roughly balanced between older and newer construction, Bonsall shows a median build year of 1982 - a mid-range figure that places meaningful amounts of the residential inventory on both sides of the 1986 federal plumbing-solder ban.
Most homes in Bonsall 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.
Cost Context: What Remediation Means for Bonsall Homeowners
Equity impact data for Bonsall lands in the favorable tier - remediation claims a small slice of what properties here are worth.
Remediation costs in Bonsall are relatively low compared to home values. The $800–$1,800 estimated range is a small fraction of median property value. Home values are 23% above the California average.
Lead Exposure Risk for Children in Bonsall
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.
45% - that captures the slice of Bonsall housing dating from before the federal ban on solder containing lead. It pairs with aggregate utility readings that either approach or cross 0.015 mg/L, the benchmark set under the EPA Lead and Copper Rule. Together, the two figures shift one-home reads into a standard household-level confirmation, particularly for families with kids. A certified lead-removal filter is available through retailer-verified channels if a kit returns results that warrant additional measures.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical NFIP Claim Context in Bonsall
Historical NFIP data for Bonsall contains 4 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $133. Among ZIP codes with claim records, 0% 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 <strong>$1,200</strong> 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.
Deep Dive Reports
Detailed analysis for Bonsall, CA