Granada Hills, CA Home Safety: Home Safety 75/100
2 ZIP codes · 1 water system · Updated
ZipCheckup grade for Granada Hills: B.
This ZIP looks solid, with a few items worth a quick check.
Granada Hills tap water earns a high safety grade - above-average compliance with CA and federal standards.
How Granada Hills Compares
Data: EPA SDWIS
Key Facts for Granada Hills Residents
- Average lead level: 0.0039 mg/L.
- Estimated remediation: $1,000 per household.
- CDC health risk index: 10.71.
Granada Hills's Water Providers
One utility dominates residential water service in Granada Hills, CA - out of 1 system in federal records.
- B
Overview
We track home safety data for 2 ZIP codes in Granada Hills, California (population ~53,248), covering 1 community water system serving approximately 3,875,566 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 2 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 Granada Hills: B (75/100)
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
Granada Hills water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0039 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): 2 ZIP codes
- Zone 3 (Low): 0 ZIP codes
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 91344 | B | Los Angeles-city, Department of Water & Power | 3,875,566 |
All ZIP Codes in Granada Hills
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.
Granada Hills 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
How Remediation Costs Compare in Granada Hills
Within the Granada Hills market, estimated remediation claims a small portion of typical property equity - the financial burden is proportionally low.
Remediation costs in Granada Hills are relatively low compared to home values. The $400–$1,700 estimated range is a small fraction of median property value. Home values are 18% above the California average.
Granada Hills: 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.
Lead risk in Granada Hills appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Granada Hills: NFIP Claim Records and Water-Quality Context
Historical NFIP data for Granada Hills contains 31 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $7,043. 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>$1,000</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 Granada Hills, CA