ZipCheckup grade for 91362: C.
A mixed picture - some signals here are worth your attention.
Your top priority: have older plumbing checked for lead solder. Check your ZIP → EPA: reduce lead
Thousand Oaks, CA (91362): High Radon Potential Area - 67/100
EPA data combined for 3 water systems mapped to this ZIP (largest mapped system: City of Thousand Oaks Water Department)
EPA records for the water systems mapped to 91362 in Thousand Oaks, CA contain zero recorded violations for inclusive record years 2021 through 2026. This does not establish that every category was monitored or published, and it does not cover events outside that source window.
Data source: U.S. Environmental Protection Agency (EPA) SDWIS
At a Glance
- Water No drinking-water violations in EPA records since 2021.
- Lead The reported 90th-percentile lead result is below the laboratory reporting limit, not a measured zero; EPA's health goal for lead is zero.
- Radon EPA Zone 1 - highest county-level potential. This is not a home measurement; test before any threshold comparison.
- Flood 23 cumulative NFIP claim records. Check the current FEMA map for a specific address.
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Score Breakdown
Overall Home Safety Score: 67/100
This is the published model score. Component and domain values are shown independently; they are not added together on this page.
Canonical components
Required domains
Coverage: 4 of 4 components and 3 of 3 domains observed.
Model 4.0.0; series home-safety-v4-cross-vertical.
Safety & Health (7) HIGH
Your Water System
ZIP code 91362 in Thousand Oaks, California is mapped to the water system City of Thousand Oaks Water Department (EPA ID: CA5610020). This system provides water to approximately 53,157 people from surface water sources.
There are 3 community water systems serving this area.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| City of Thousand Oaks Water Department | CA5610020 | 53,157 | Surface water |
| California Water Service Company - Westlake | CA5610016 | 19,533 | Surface water |
| Las Virgenes Mwd | CA1910225 | 72,602 | Surface water |
Other Water Quality Reports in California
- 90001 (Los Angeles)
- 90002 (Los Angeles)
- 90003 (Los Angeles)
- 90004 (Los Angeles)
- 90005 (Los Angeles)
- 90006 (Los Angeles)
- 90007 (Los Angeles)
- 90008 (Los Angeles)
- 90009 (Los Angeles)
- 90010 (Los Angeles)
- 90011 (Los Angeles)
- 90012 (Los Angeles)
- 90013 (Los Angeles)
- 90014 (Los Angeles)
- 90015 (Los Angeles)
- 90016 (Los Angeles)
- 90017 (Los Angeles)
- 90018 (Los Angeles)
- 90019 (Los Angeles)
- 90020 (Los Angeles)
Nearby Water Quality Reports
- 91358 (Thousand Oaks) - 2 mi
- 91360 (Thousand Oaks) - 3 mi - 2 violations recorded for mapped water systems
- 91377 (Oak Park) - 3 mi
- 91361 (Westlake Village) - 3 mi - 1 violation recorded for mapped water systems
- 91359 (Westlake Village) - 4 mi
- 91363 (Thousand Oaks) - 4 mi
- 91376 (Agoura Hills) - 5 mi
- 91319 (Newbury Park) - 5 mi
- 93062 (Simi Valley) - 6 mi
- 93094 (Simi Valley) - 6 mi
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for City of Thousand Oaks Water Department (CA5610020) on EPA.gov.
5 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.
UCMR 5 PFAS monitoring: no reportable detections in available records
Available federal UCMR5 records for water systems mapped to ZIP code 91362 show no PFAS detections among the compounds tested, at the program's reporting levels.
The EPA Fifth Unregulated Contaminant Monitoring Rule (UCMR5) required community and non-transient non-community water systems serving 3,300 or more people to test for 29 PFAS compounds and lithium between 2023 and 2025. Systems with no detections at the federal minimum reporting level had no results at or above that reporting level.
Environmental Hazards (11) HIGH
Home & Infrastructure (6) MODERATE
Cost & Community (9) HIGH
CPSC product recall notices
These national notices are not matched to this ZIP code or water system.
Protect Your Home in Thousand Oaks
Based on local data for ZIP 91362, these services may benefit homeowners in your area.
Based on local data for your area. Use the tools below to explore your options.
Home & Flood Insurance
The ZIP code for this report in Thousand Oaks has 23 FEMA flood claims on record. Standard homeowner policies don't cover flood damage - make sure you're protected.
Typical cost: Flood insurance: premiums vary by property and flood zone; request a quote
Check Your Flood Zone (Free)FEMA flood map lookup - see if your property is in a flood zone
Free tip: Check your FEMA flood zone at msc.fema.gov (free lookup)
Gutter Installation & Repair
The median home in 91362 was built around 1987. Aging gutters can cause foundation damage, basement flooding, and mold - a professional assessment can prevent costly repairs.
Typical cost: Gutter installation: typically $1,000–$2,500 for a standard home
Estimate Your Home Maintenance CostsRoofing Inspection & Repair
Active weather alerts in California increase the risk of roof damage from hail and high winds. A professional inspection can identify vulnerabilities.
Typical cost: Roof inspection: typically $75–$300; repairs $300–$1,500
Estimate Your Home Insurance NeedsService recommendations are based on public data for this ZIP code (FEMA, Census ACS, NWS). Actual needs vary by property. By calling, your information will be shared with an independent service provider. ZipCheckup may receive compensation. Cost estimates are approximate and vary by property, condition, and contractor.
Frequently Asked Questions
Is the tap water in 91362 safe to drink?
EPA SDWIS records 0 violations since 2021 across the water systems mapped to ZIP 91362 (primary system: City of Thousand Oaks Water Department), including 0 health-based. The violation table above shows which system each record belongs to. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.
Where does 91362's water come from?
The recorded water source for City of Thousand Oaks Water Department, a system mapped to ZIP code 91362, is Surface water. This system serves approximately 53,157 people.
How does Thousand Oaks water compare to the national average?
Thousand Oaks's Home Safety Score ranks lower than 65% of U.S. ZIP codes, and lower than 78% of ZIP codes within California.
How can I get my water tested in Thousand Oaks?
If City of Thousand Oaks Water Department supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.
What is the radon risk for 91362?
91362 is mapped to a county in EPA Radon Zone 1 (high county-level radon potential; EPA recommends testing every home), located in Ventura County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.
What does the NFIP claim history show for ZIP 91362?
FEMA records contain 23 flood insurance claims filed in ZIP code 91362; the recorded rated-zone value (the most frequent one if there are several claims) is X, which is claims evidence and may differ from the current FEMA map zone for a property. Claim records do not establish current property risk. Review FEMA's map for the specific property.
How to cite this page
ZipCheckup. (2026). Thousand Oaks, CA (91362): High Radon Potential Area - 67/100. https://zipcheckup.com/report/91362/
@misc{zipcheckup-report-91362,
author = {{ZipCheckup}},
title = {{Thousand Oaks, CA (91362): High Radon Potential Area - 67/100}},
year = {2026},
url = {https://zipcheckup.com/report/91362/}
}
Page version: October 2026.
Nearby ZIP Code Reports
Water quality comparison for ZIP codes near 91362
| ZIP Code | City, State | Distance | Grade | Violations |
|---|---|---|---|---|
| 91358 | Thousand Oaks, CA | 1.9 mi | N/A | 0 |
| 91360 | Thousand Oaks, CA | 3.1 mi | C | 2 |
| 91377 | Oak Park, CA | 3.3 mi | C | 0 |
| 91361 | Westlake Village, CA | 3.4 mi | C | 1 |
| 91359 | Westlake Village, CA | 3.5 mi | N/A | 0 |
| 91363 | Thousand Oaks, CA | 4.0 mi | N/A | 0 |
| 91376 | Agoura Hills, CA | 4.9 mi | N/A | 0 |
| 91319 | Newbury Park, CA | 5.1 mi | N/A | 0 |
| 93062 | Simi Valley, CA | 5.7 mi | N/A | 0 |
| 93094 | Simi Valley, CA | 5.7 mi | N/A | 0 |
Nearby ZIP Code Reports
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