City of Irvine
2020 Local Hazard Mitigation Plan
Table 4-11: Critical Facilities and Facilities of Concern (Cal Enviro Screen) Category Number of Facilities Potential Loss** Critical Concern City Vital Operations - - $ - City Community Centers - - $ - City Resident Services - 1 $108,596 City Recreation Support - - $ - Bridges 23 - $ 40,945,230 Schools* - - N/A Total 23 1 $41,053,826 * Replacement Values unavailable ** Based on the City of Irvine insured replacement values
Social Threat
The threat of a hazardous materials release event affects those who are closest to a source of hazardous materials, including industrial sites, gas stations, gas transmission lines, or sewer mains. Table 4-12 shows the City’s vulnerable populations living within 500 feet of a hazardous materials storage or waste site. Though the population close to a hazardous materials site in the City is small, the median household income is approximately $14,000 less than the rest of the City. This suggests that poorer populations may be living near hazardous materials locations, indicating potential environmental justice concerns should be considered. This data also suggests a disproportionately higher percentage of households with at least one person living with a disability. This increase could be related to certain locations that cater to populations with a disability or some other criteria.
Table 4-12: Hazard Threatened Populations
Threatened Population Metric
Hazardous Materials
City of Irvine
Population
7,476
256,877
Households
3,110
92,869
Median household income
$81,598
$95,573
Percentage of households with at least one person living with a disability
14.2%
5.8%
Percentage of households living under the poverty limit
12.3%
13.2%
Percentage of households with one member aged 65+
16.7%
19.5%
Irvine residents living next to major transportation infrastructure, such as highways or major arterial streets, also face a greater threat of being affected by a release of hazardous materials since any trucks or vehicles shipping quantities of hazardous materials may release their contents into the environment if the vehicle is involved in a collision, for example. Specifically, residents in Irvine living near the Irvine Business Complex and John Wayne Airport, as well as the major transportation corridors running through the City (SR 55, I-5, I-405) are more threatened by a transportation-related hazardous materials release than residents living in other parts of the City. Groups such as the elderly, low-income persons, or renters face greater risk of exposure since they may not have the financial resources necessary to retrofit their homes against infiltration by hazardous
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