Irvine, CA: a top-two-band grade.

Data: EPA SDWIS

Water Quality Map: Irvine, CA

Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.

A B C D F

Overview

We track home safety data for 14 ZIP codes in Irvine, California (population ~308,406), covering 4 community water systems serving approximately 933,911 people region-wide. The EPA snapshots used for this build directly map water systems to 10 of 14 ZIP codes.

2 of 10 ZIP codes with a reported violation count in the available EPA record (20%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.

Home Safety Score

Average Home Safety Score for Irvine: A (92/100)

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

Irvine 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 10 ZIP codes with known status exceed the EPA lead action level

Radon Risk

14 of 14 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

Areas with Most Violations

Areas with No Violations

All ZIP Codes in Irvine

• 92602 [A]
• 92603 [A]
• 92604 [A]
• 92606 [A] - 1 violation
• 92612 [A]
• 92614 [A] - 1 violation
• 92616
• 92617 [A]
• 92618 [A]
• 92619
• 92620 [A]
• 92623
• 92697
• 92710

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.

Housing Age Profile

Lead solder was allowed in new plumbing until the 1986 federal restrictions, which is why older homes in Irvine deserve a closer look; the median build year is 1998.

1998

Median Year Built

34%

Pre-1986 (lead solder era; lead paint banned 1978)

5%

Pre-1970 (Lead Pipes Risk)

Pre-1970 (5%) 1970–1986 (29%) Post-1986 (66%)

Most homes in Irvine were built after 1986; lead exposure at a tap still depends on its service line and plumbing. Older homes should still be tested.

Source: U.S. Census Bureau ACS B25034.

Irvine: Remediation Cost in Perspective

Here the gap between local home values and the estimated repair bill is wide, so the percentage shown below for Irvine stays at or under the 1% mark.

Median Home Value

$1.0M

Est. Remediation

$500

Remediation as % of home value 0.1%

Estimated remediation costs in Irvine can be compared with local home values. The $300–$800 estimated range can be set against the median property value; actual costs vary by home. Home values are 42% above the California average.

Protecting Children from Lead in Irvine

34%

Homes Built Before 1986

Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Historical Flood-Claim Evidence for Irvine

43

Total FEMA Flood Claims

$5,456

Avg Reported Sum With Payment Data

14%

A/V Share of Claim-Record ZIPs

Historical NFIP data for Irvine contains 43 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $5,456. Among ZIP codes with claim records, 14% 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 $500 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.