ZipCheckup grade for 92637: A.
Checked records flag no major concern; missing data is unknown.
Laguna Woods, CA (92637): PFAS Detected in Mapped Water Systems - 92/100
EPA data combined for 3 water systems mapped to this ZIP (largest mapped system: El Toro Water District)
EPA records for the water systems mapped to 92637 in Laguna Woods, 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 of 0.0008 mg/L is below the EPA action level for water systems; EPA's health goal for lead is zero.
- PFAS PFAS detected in UCMR5 sampling; see the PFAS section for each compound, compared with the federal PFAS MCL where one exists.
- Radon EPA Zone 3 - county-level radon potential, not evidence of a low home result.
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Check the list below - 1 high-priority alert on file for Laguna Woods (92637), with no critical-level alerts in these records.
Score Breakdown
Overall Home Safety Score: 92/100
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 92637 in Laguna Woods, California is mapped to the water system El Toro Water District (EPA ID: CA3010079). This system provides water to approximately 51,800 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 |
|---|---|---|---|
| El Toro Water District | CA3010079 | 51,800 | Surface water |
| Moulton Niguel Water District | CA3010073 | 170,236 | Surface water |
| Laguna Beach County Water District | CA3010017 | 18,404 | 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
- 92654 (Laguna Hills) - <1 mi
- 92653 (Laguna Hills) - 2 mi
- 92609 (El Toro) - 2 mi
- 92656 (Aliso Viejo) - 3 mi
- 92630 (Lake Forest) - 3 mi
- 92691 (Mission Viejo) - 4 mi - 1 violation recorded for mapped water systems
- 92603 (Irvine) - 4 mi
- 92692 (Mission Viejo) - 5 mi - 1 violation recorded for mapped water systems
- 92690 (Mission Viejo) - 5 mi
- 92619 (Irvine) - 5 mi
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for El Toro Water District (CA3010079) 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.
PFAS Contamination Detected
PFAS ("forever chemicals") have been reported in samples from water systems associated with ZIP code 92637.
Detected compounds: PFBA.
Highest measured level: 0.0067 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.
Environmental Hazards (10) CRITICAL
Home & Infrastructure (6) OK
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 Laguna Woods
Based on local data for ZIP 92637, these services may benefit homeowners in your area.
Based on local data for your area. Use the tools below to explore your options.
Gutter Installation & Repair
The median home in 92637 was built around 1961. 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 CostsWindow Replacement
The median build year of homes in Laguna Woods is 1961; 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 CostsRoofing Inspection & Repair
Homes built around 1961 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 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 92637 safe to drink?
EPA SDWIS records 0 violations since 2021 across the water systems mapped to ZIP 92637 (primary system: El Toro 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 92637's water come from?
The recorded water source for El Toro Water District, a system mapped to ZIP code 92637, is Surface water. This system serves approximately 51,800 people.
How does Laguna Woods water compare to the national average?
Laguna Woods's Home Safety Score ranks better than 84% of U.S. ZIP codes, and at or above 80% within California.
How can I get my water tested in Laguna Woods?
If El Toro 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.
Is lead a concern in 92637 tap water?
The Lead and Copper Rule record selected for 92637 reports a 90th-percentile lead result of 0.0008 mg/L for a water system mapped to this ZIP (record date 2023-12-31). The EPA action level is 0.015 mg/L. This result is below the EPA action level; it does not show the lead level in each home.
What is the radon risk for 92637?
92637 is mapped to a county in EPA Radon Zone 3 (low county-level radon potential; EPA recommends testing every home), located in Orange 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 92637's water?
Yes, PFAS have been detected in samples from water systems mapped to 92637. Reverse osmosis and activated carbon filters certified to NSF/ANSI 53 or 58 specifically for PFOA/PFOS reduction can reduce PFAS.
How to cite this page
ZipCheckup. (2026). Laguna Woods, CA (92637): PFAS Detected in Mapped Water Systems - 92/100. https://zipcheckup.com/report/92637/
@misc{zipcheckup-report-92637,
author = {{ZipCheckup}},
title = {{Laguna Woods, CA (92637): PFAS Detected in Mapped Water Systems - 92/100}},
year = {2026},
url = {https://zipcheckup.com/report/92637/}
}
Page version: October 2026.
Nearby ZIP Code Reports
Water quality comparison for ZIP codes near 92637
| ZIP Code | City, State | Distance | Grade | Violations |
|---|---|---|---|---|
| 92654 | Laguna Hills, CA | <1 mi | N/A | 0 |
| 92653 | Laguna Hills, CA | 2.0 mi | A | 0 |
| 92609 | El Toro, CA | 2.2 mi | N/A | 0 |
| 92656 | Aliso Viejo, CA | 2.9 mi | A | 0 |
| 92630 | Lake Forest, CA | 3.2 mi | A | 0 |
| 92691 | Mission Viejo, CA | 3.6 mi | A | 1 |
| 92603 | Irvine, CA | 4.1 mi | A | 0 |
| 92692 | Mission Viejo, CA | 4.7 mi | A | 1 |
| 92690 | Mission Viejo, CA | 4.7 mi | N/A | 0 |
| 92619 | Irvine, CA | 4.7 mi | N/A | 0 |
Nearby ZIP Code Reports
2026 Rankings for Your Area
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ZIP 92637 scores in the top tier nationally.