Laguna Niguel, CA: 1 Violation - Home Safety 91/100
2 ZIP codes · 3 water systems · Updated
ZipCheckup grade for Laguna Niguel: A.
Checked records flag no major concern; missing data is unknown.
Laguna Niguel, CA: a top-two-band grade.
How Laguna Niguel Compares
Data: EPA SDWIS
Key Facts for Laguna Niguel Residents
- Water systems mapped to your city have 1 violation on record since 2021.
- Health risk index (ZipCheckup composite of CDC data): 10.23.
Laguna Niguel's Water Providers
Service in Laguna Niguel, CA can differ by address: 3 water systems are tied to the area in federal records, and the 3 largest are listed with their violation records.
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Overview
We track home safety data for 2 ZIP codes in Laguna Niguel, California (population ~64,023), covering 3 community water systems serving approximately 251,038 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 2 ZIP codes.
1 of 1 ZIP code 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 Laguna Niguel: A (91/100)
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
Laguna Niguel water systems draw from: Surface water.
Lead & Copper
- Average of reported 90th-percentile lead results: reported as 0 mg/L (a reported 0 is not proof of no lead; check the source record for its reporting limit) (EPA action level: 0.015 mg/L)
- 0 of 1 ZIP code with known status exceed the EPA lead action level
Radon Risk
2 of 2 ZIP records with known zones are in EPA Radon Zone 3.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 92677 | A | 1 | 0 | Moulton Niguel Water District |
All ZIP Codes in Laguna Niguel
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.
Laguna Niguel Community Health Snapshot
Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
What's in Laguna Niguel's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Laguna Niguel: NFIP Claim Records and Water-Quality Context
Historical NFIP data for Laguna Niguel contains 49 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $11,657. 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.
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 Laguna Niguel, CA