Rosemead, CA: 9 Violations - Home Safety 72/100
3 ZIP codes · 5 water systems · Updated
ZipCheckup grade for Rosemead: B.
This ZIP looks solid, with a few items worth a quick check.
Water systems in Rosemead, CA serve households with few reported safety events.
How Rosemead Compares
Data: EPA SDWIS
Rosemead Water: The Quick Version
- Your city's water systems recorded 9 violations in the past 5 years.
- Estimated remediation: $1,167 per household.
- CDC health risk index: 10.71.
Water Systems Serving Rosemead
Federal drinking water records identify 5 systems in Rosemead, CA. The leading 3 providers serve the largest share of residential connections, each operating as a separate entity with its own rate authority, infrastructure management, and EPA compliance obligations - so service conditions are not uniform city-wide.
- B
- B
- B
Overview
We track home safety data for 3 ZIP codes in Rosemead, California (population ~58,893), covering 5 community water systems serving approximately 364,714 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 3 ZIP codes.
1 of 1 ZIP code 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 Rosemead: B (72/100)
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
Rosemead water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0000 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 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 | 8 | 1 |
| HAA6Br | Disinfection Byproducts | 8 | 1 |
| Lead | Inorganic | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 91770 | B | 9 | 0 | Gswc-south San Gabriel |
All ZIP Codes in Rosemead
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 Rosemead
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 Rosemead
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Rosemead: Remediation Cost in Perspective
How much of a Rosemead home's value does documented remediation represent? A small fraction - the equity share here is in the low tier, and from a household financial perspective, most property owners are considering a commitment that fits comfortably within standard planning rather than a decision that rises to the level of a material budget event or significant equity consideration.
Remediation costs in Rosemead are relatively low compared to home values. The $500–$1,933 estimated range is a small fraction of median property value. Home values are 3% below the California average.
Historical Flood-Claim Evidence for Rosemead
Historical NFIP data for Rosemead contains 3 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $582. 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>$1,167</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 Rosemead, CA