ZipCheckup grade for 92040: B.

The model grade is high, but the records on this page include findings worth reviewing.

Your top priority: review your flood insurance coverage. Check your ZIP → FloodSmart

Water Quality Report
B 74

Lakeside, CA (92040): PFAS Detected in Mapped Water Systems - 74/100

EPA data combined for 5 water systems mapped to this ZIP (largest mapped system: Lakeside Water District)

PFAS Detected

EPA records for the water systems mapped to 92040 in Lakeside, CA contain 2 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 0 are marked health-based.

Data source: U.S. Environmental Protection Agency (EPA) SDWIS

Based on EPA Drinking Water FEMA Flood Data U.S. Census CDC Energy Information Admin. USGS Water Data & 9 more federal sources
Latest air quality, EPA records and weather alerts Current data temporarily unavailable
Current EPA violation data unavailable
Water records and current conditions
Current EPA violation data unavailable
Safety Score
B 74/100
Water Quality PFAS above MCL 2 non-health-based violation records in EPA data
Lead Risk Below action level Below the reporting limit, 90th percentile, sample period ending 2025-12-31
NFIP Claim History Claim records 94 claims
Data confidence: High (direct measurement) Medium (sampled / sub-geography) Low (modeled / inferred) Methodology →

At a Glance

  • Water EPA records for water systems mapped to this ZIP show 2 violations (non-health) (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.
  • PFAS At least one PFAS result is above an EPA MCL value (UCMR5 sampling; MCL compliance required from 2029).
  • Radon EPA Zone 3 - county-level radon potential, not evidence of a low home result.
  • Flood 94 cumulative NFIP claim records. Check the current FEMA map for a specific address.
Contaminant Summary
Violations on record (not health-based)
2 violations PFAS detected
Report data assembled: Jul 27, 2026 EPA water-system identity: source date or period is not present in ZipCheckup's accepted source record EPA violation history: more than two update cycles old Lead, copper and UCMR measurements: source date or period is not present in ZipCheckup's accepted source record Consumer Confidence Report: source date or period is not present in ZipCheckup's accepted source record
B
ZIP-level Home Safety model score: 74 / 100
Bottom 49% of U.S. ZIP codes
5
Water Systems
35,500
People Served
0
Health Violations (since 2021)
Surface water
Water Source
Zone 3
County Radon Potential · Low
$649K
Median Home ValueState median: $629K

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Score Breakdown

Overall Home Safety Score: 74/100

This is the published model score. Component and domain values are shown independently; they are not added together on this page.

Canonical components

EPA water compliance
96/100
Observed
PFAS MCL screen
0/100
Observed
EPA radon zone
100/100
Observed
Annual EPA AirData AQI
75/100
Observed

Required domains

Drinking water
48/100
Indoor environment
100/100
Outdoor environment
75/100

Coverage: 4 of 4 components and 3 of 3 domains observed.

Model 4.0.0; series home-safety-v4-cross-vertical.

Safety & Health (8) HIGH

Your Water System

ZIP code 92040 in Lakeside, California is mapped to the water system Lakeside Water District (EPA ID: CA3710013). This system provides water to approximately 35,500 people from surface water sources.

There are 5 community water systems serving this area.

Water Systems Serving This Area

System Name EPA ID Population Source
Lakeside Water District CA3710013 35,500 Surface water
Helix Water District CA3710010 277,668 Surface water
Padre Dam Mwd CA3710037 93,980 Surface water
Ramona Municipal Water District CA3710019 37,047 Surface water
City of Poway, CA3710015 49,888 Surface water

Other Water Quality Reports in California

Nearby Water Quality Reports

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Lakeside Water District (CA3710013) 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.

📊 EPA Safe Drinking Water · View source →

PFAS Contamination Detected

PFAS ("forever chemicals") have been reported in samples from water systems associated with ZIP code 92040. One or more compound results are above the level of a federal PFAS MCL with compliance required from 2029.

Detected compounds: PFBA, PFBS, PFHxS, PFOS.

Highest measured level: 0.0058 µg/L

Reverse osmosis (RO) and activated carbon block filters can reduce PFAS at the tap. Certifications list the compounds covered: an NSF/ANSI 53 or 58 claim for PFOA/PFOS does not cover every PFAS, so check that the product lists the compounds detected here.

📊 EPA UCMR5 · View source →
Environmental Hazards (11) CRITICAL
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.

View all recalls →

📊 CPSC · View source →

Protect Your Home in Lakeside

Based on local data for ZIP 92040, 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 Lakeside has 94 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 92040 was built around 1972. 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 Costs

Window Replacement

The median build year of homes in Lakeside is 1972; check the age and condition of your own windows. ENERGY STAR windows can save $101–$583/year on energy bills.

Typical cost: Window replacement: typically $300–$800 per window installed

Estimate Your Home Maintenance Costs

Roofing Inspection & Repair

Homes built around 1972 may be on their second or third roof. A professional inspection can catch damage before leaks start.

Typical cost: Roof inspection: typically $75–$300; repairs $300–$1,500

Estimate Your Home Insurance Needs

Service 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 92040 safe to drink?

EPA SDWIS records 2 violations since 2021 across the water systems mapped to ZIP 92040 (primary system: Lakeside Water District), 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 92040's water come from?

The recorded water source for Lakeside Water District, a system mapped to ZIP code 92040, is Surface water. This system serves approximately 35,500 people.

How does Lakeside water compare to the national average?

Lakeside's Home Safety Score ranks lower than 51% of U.S. ZIP codes, and lower than 70% of ZIP codes within California.

How can I get my water tested in Lakeside?

If Lakeside Water District 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 92040?

92040 is mapped to a county in EPA Radon Zone 3 (low county-level radon potential; EPA recommends testing every home), located in San Diego County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.

Are there PFAS (forever chemicals) in 92040's water?

Yes, PFAS have been detected in samples from water systems mapped to 92040. One or more PFAS results are above the level of a federal PFAS MCL with compliance required from 2029. Reverse osmosis and activated carbon filters certified to NSF/ANSI 53 or 58 specifically for PFOA/PFOS reduction can reduce PFAS.

What does the NFIP claim history show for ZIP 92040?

FEMA records contain 94 flood insurance claims filed in ZIP code 92040; the recorded rated-zone value (the most frequent one if there are several claims) is AE, which is claims evidence and may differ from the current FEMA map zone for a property. This is a substantial claim history, but claim count is not a count of distinct events or properties. Review FEMA's map for the specific property.

How to cite this page

APA ZipCheckup. (2026). Lakeside, CA (92040): PFAS Detected in Mapped Water Systems - 74/100. https://zipcheckup.com/report/92040/
BibTeX
@misc{zipcheckup-report-92040,
  author = {{ZipCheckup}},
  title  = {{Lakeside, CA (92040): PFAS Detected in Mapped Water Systems - 74/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/report/92040/}
}

Page version: October 2026.

Nearby ZIP Code Reports

Water quality comparison for ZIP codes near 92040

ZIP Code City, State Distance Grade Violations
92021 El Cajon, CA 2.7 mi A 2
92072 Santee, CA 3.4 mi N/A 0
92071 Santee, CA 3.9 mi A 0
92022 El Cajon, CA 4.9 mi N/A 0
92020 El Cajon, CA 5.1 mi A 0
92019 El Cajon, CA 5.4 mi A 0
92119 San Diego, CA 7.1 mi A 0
91942 La Mesa, CA 7.6 mi A 0
91941 La Mesa, CA 8.5 mi A 0
91943 La Mesa, CA 8.5 mi N/A 0

Contaminants Detected in 92040

Learn more about the contaminants found in your water supply:

Overall safety breakdown

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Coverage: 15/17 risk factors Data sources →
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