Loma Linda, CA: Lead Above EPA Limits - Home Safety 58/100
3 ZIP codes · 5 water systems · Updated
ZipCheckup grade for Loma Linda: C.
A mixed picture - some signals here are worth your attention.
Compared to top-scoring cities in CA, Loma Linda lands in the middle tier - some water systems meet standards cleanly, others carry documented violations, and performance can vary significantly across service areas.
How Loma Linda Compares
Data: EPA SDWIS
What You Should Know About Loma Linda Water
- Your city's water systems recorded 2 violations in the past 5 years.
- Average lead level: 0.085 mg/L - exceeds the EPA action level of 0.015 mg/L.
- Homes built before 1986: 32% - older plumbing may contain lead solder.
- Estimated remediation: $1,200 per household.
- CDC health risk index: 11.58.
Who Supplies Your Water in Loma Linda
3 independent water providers serve Loma Linda, CA - 5 systems appear in federal records.
- C
- C
- C
Overview
We track home safety data for 3 ZIP codes in Loma Linda, California (population ~23,470), covering 5 community water systems serving approximately 379,712 people region-wide. The EPA snapshots used for this build directly map water systems to 2 of 3 ZIP codes.
2 of 2 ZIP codes with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.
Home Safety Score
Average Home Safety Score for Loma Linda: C (58/100)
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
Loma Linda water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0850 mg/L (exceeds EPA action level) (EPA action level: 0.015 mg/L)
- 1 of 2 ZIP codes with known status exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 3 ZIP codes
- Zone 3 (Low): 0 ZIP codes
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Chlorodibromoacetic Acid | Disinfection Byproducts | 3 | 2 |
| Lead | Inorganic | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 92354 | C | 2 | 0 | City of Loma Linda, |
| 92350 | C | 1 | 0 | City of Loma Linda, |
All ZIP Codes in Loma Linda
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 Loma Linda
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 Loma Linda Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Loma Linda
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
The story of Loma Linda's housing stock is one of layered development - neighborhoods built in different decades, each carrying the plumbing standards of their era. The median build year of 1988 reflects that layered character. Before 1986, lead solder was standard in copper plumbing; before 1970, lead pipes were commonly used for service lines. A substantial portion of the pre-1986 homes visible in the distribution above still carry the plumbing materials of those earlier standards - creating a risk environment that the city-wide aggregate water data doesn't fully capture.
Most homes in Loma Linda 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 Loma Linda Homeowners
Given current Loma Linda valuations, the remediation-to-property-value ratio is low - most homeowners are looking at a proportionally modest share that fits within routine financial planning.
Remediation costs in Loma Linda are relatively low compared to home values. The $533–$1,933 estimated range is a small fraction of median property value. Home values are 27% below the California average.
Lead Exposure Risk for Children in Loma Linda
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.
After the federal action removing lead-bearing solder from new plumbing took effect, building practice shifted - but 32% of the Loma Linda inventory predates that line. With aggregate samples near or beyond 0.015 mg/L, an in-home check moves out of the optional column into the standard list.
<strong>1 ZIP code</strong> (33% of the city) exceeds the EPA lead action level of 0.015 mg/L.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical NFIP Claim Context in Loma Linda
Historical NFIP data for Loma Linda contains 13 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $5,849. 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 <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.
What You Can Do in Loma Linda
- Test your water at home. City-level data shows averages - your tap may differ. Lead testing is especially recommended given the area's lead levels.
- Install a certified water filter. Filters rated for Chlorodibromoacetic Acid can reduce the most common contaminant found in Loma Linda's water.
- Check your home's plumbing. With 32% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Loma Linda, CA