San Bernardino, CA: 24 Violations - Home Safety 67/100
18 ZIP codes · 12 water systems · Updated
ZipCheckup grade for San Bernardino: C.
A mixed picture - some signals here are worth your attention.
San Bernardino, CA: middle-tier water safety by the latest federal monitoring.
How San Bernardino Compares
Data: EPA SDWIS
Water Quality Map: San Bernardino, CA
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
Distribution of Home Safety grades across San Bernardino.
San Bernardino Water: The Quick Version
- Your city's water systems recorded 24 violations in the past 5 years.
- Average lead level: 0.0225 mg/L - exceeds the EPA action level of 0.015 mg/L.
- Estimated remediation: $1,072 per household.
- CDC health risk index: 11.58.
Water Systems Serving San Bernardino
Residential water in San Bernardino, CA is supplied by 3 separate utilities - not one centralized authority. Each of those providers operates under its own service territory boundary, maintains its own distribution infrastructure, and files compliance documentation with the EPA on its own timeline. Federal data counts 12 water systems in the area, with these providers collectively accounting for the dominant share of household connections.
- B
- C
- B
Overview
We track home safety data for 18 ZIP codes in San Bernardino, California (population ~255,071), covering 12 community water systems serving approximately 657,096 people region-wide. The EPA snapshots used for this build directly map water systems to 8 of 18 ZIP codes.
5 of 8 ZIP codes with a reported violation count in the available EPA record (63%) have recorded EPA violations. 1 health-based violation appear in the available health breakdown.
Home Safety Score
Average Home Safety Score for San Bernardino: 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
San Bernardino water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0225 mg/L (exceeds EPA action level) (EPA action level: 0.015 mg/L)
- 1 of 8 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): 18 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 |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting | 50 | 2 |
| Lead | Inorganic | 4 | 3 |
| Stage 2 DBP Rule | Treatment Technique | 4 | 1 |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 2 | 1 |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 92407 | C | 20 | 1 | San Bernardino City |
| 92411 | B | 16 | 0 | San Bernardino City |
| 92404 | C | 2 | 0 | San Bernardino City |
| 92408 | C | 2 | 0 | San Bernardino City |
| 92410 | C | 1 | 0 | San Bernardino City |
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 92401 | B | San Bernardino City | 214,665 |
| 92405 | B | San Bernardino City | 214,665 |
| 92415 | B | San Bernardino City | 214,665 |
All ZIP Codes in San Bernardino
- 92401 [B]
- 92402
- 92403
- 92404 [C] - 2 violations
- 92405 [B]
- 92406
- 92407 [C] - 20 violations ⚠
- 92408 [C] - 2 violations
- 92410 [C] - 1 violation
- 92411 [B] - 16 violations
- 92412
- 92413
- 92414
- 92415 [B]
- 92418
- 92423
- 92424
- 92427
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.
CDC Health Data for San Bernardino
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
Key Contaminants Detected in San Bernardino
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
San Bernardino: Remediation Cost in Perspective
When remediation costs are measured against San Bernardino home values, the resulting ratio is in the low tier - addressing documented water and safety issues here claims only a minor fraction of typical equity, and most homeowners are in a position where the financial commitment is straightforward rather than a material burden on their household budget.
Remediation costs in San Bernardino are relatively low compared to home values. The $439–$1,794 estimated range is a small fraction of median property value. Home values are 49% below the California average.
Protecting Children from Lead in San Bernardino
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.
If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.
<strong>1 ZIP code</strong> (6% 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 Flood-Claim Evidence for San Bernardino
Historical NFIP data for San Bernardino contains 152 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $15,853. Among ZIP codes with claim records, 17% 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>$1,072</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 San Bernardino
- 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 Consumer Confidence Report Rule can reduce the most common contaminant found in San Bernardino's water.
- Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
Deep Dive Reports
Detailed analysis for San Bernardino, CA