Los Banos, CA: 4 Health Violations — 82/100 (2026)
1 ZIP code · 3 water systems · Updated 2026-06-03
Los Banos tap water earns a high safety grade — above-average compliance with CA and federal standards.
How Los Banos Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Los Banos Residents
- Your city's water systems recorded 7 violations in the past 5 years.
- Average lead level: 0.0065 mg/L.
- Homes built before 1986: 40% — older plumbing may contain lead solder.
- Estimated remediation: $600 per household.
- CDC health risk index: 12.06 — above typical levels.
Los Banos's Water Providers
3 independent water providers serve Los Banos, CA — 3 systems appear in federal records.
Overview
We track water quality and home safety data for 1 ZIP code in Los Banos, California, covering 3 community water systems serving approximately 49,232 people.
1 of 1 ZIP code (100%) have recorded EPA violations. 4 health-based violations documented.
Home Safety Score
Average Home Safety Score for Los Banos: B (82/100)
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
Los Banos water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0065 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 |
|---|---|---|---|
| Stage 2 DBP Rule | Treatment Technique | 8 | 1 |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 4 | 1 |
| Consumer Confidence Report Rule | Reporting | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 93635 | B | 7 | 4 | City of Los Banos |
All ZIP Codes in Los Banos
- 93635 [B] — 7 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.
Los Banos 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
What's in Los Banos's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Los Banos Infrastructure Age
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
With a median build year of 1997, Los Banos's housing stock reflects a city built across multiple eras. A substantial share of homes predate 1986 — the year lead solder in plumbing was federally banned — meaning the risk from plumbing materials is unevenly distributed across the city's neighborhoods and property types.
Most homes in Los Banos 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.
How Remediation Costs Compare in Los Banos
Given current Los Banos 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 Los Banos are relatively low compared to home values. The $300–$1,500 estimated range is a small fraction of median property value. Home values are 43% below the California average.
Los Banos: 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.
Routinely in Los Banos, where 40% of housing predates the solder ban and aggregate utility readings hover near the federal threshold, a faucet-level draw functions as a standard household step for families with small kids.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Los Banos, CA