Simi Valley, CA: 3 Violations - Home Safety 65/100
6 ZIP codes · 5 water systems · Updated
ZipCheckup grade for Simi Valley: C.
A mixed picture - some signals here are worth your attention.
Public water data for Simi Valley, CA reveals a split picture - tap water quality varies meaningfully by service area and the city's grade reflects that variability.
How Simi Valley Compares
Data: EPA SDWIS
Key Facts for Simi Valley Residents
- Your city's water systems recorded 3 violations in the past 5 years.
- Average lead level: 0.004 mg/L.
- Estimated remediation: $800 per household.
- CDC health risk index: 10.84.
Simi Valley's Water Providers
With 3 utilities splitting service in Simi Valley, CA, water accountability is distributed across 5 systems on the federal record.
- C
- C
- C
Overview
We track home safety data for 6 ZIP codes in Simi Valley, California, covering 5 community water systems serving approximately 128,695 people. The EPA snapshots used for this build directly map water systems to 2 of 6 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 Simi Valley: C (65/100)
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
Simi Valley water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0040 mg/L (EPA action level: 0.015 mg/L)
- 0 of 2 ZIP codes with known status exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 1 (High Risk)
- Zone 1 (High): 6 ZIP codes
- Zone 2 (Moderate): 0 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 |
|---|---|---|---|
| Lead | Inorganic | 3 | 2 |
| Surface Water Treatment Rule | Treatment Technique | 3 | 2 |
| Consumer Confidence Report Rule | Reporting | 3 | 2 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 93063 | C | 3 | 0 | Ventura Wwd No. 8 - Simi Valley |
| 93065 | C | 3 | 0 | Ventura Wwd No. 8 - Simi Valley |
All ZIP Codes in Simi Valley
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.
Simi Valley 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 Simi Valley's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Remediation Costs Compare in Simi Valley
In Simi Valley, the equity impact of remediation is proportionally small - not the kind of financial commitment that rises to the level of a genuine planning constraint, but a minor share of what most properties here are worth.
Remediation costs in Simi Valley are relatively low compared to home values. The $267–$1,400 estimated range is a small fraction of median property value. Home values are 3% above the California average.
Simi Valley: 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 Simi Valley 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.
Simi Valley: NFIP Claim Records and Water-Quality Context
Historical NFIP data for Simi Valley contains 95 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $3,879. Among ZIP codes with claim records, 50% 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>$800</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 Simi Valley
- Test your water at home. City-level data shows averages - your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. Filters rated for Lead can reduce the most common contaminant found in Simi Valley'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 Simi Valley, CA