2020 Local Hazard Mitigation Plan

City of Irvine

2020 Local Hazard Mitigation Plan

Table 3-1: Hazard Evaluation for Irvine LHMP

Hazard

Recommended for Consideration

Included in LHMP?

Reason for Inclusion or Exclusion

Cyber Threats

SHMP

Yes

With the increase in cyber threats occurring throughout California and the nation, the HMPC considers them to be serious in nature requiring evaluation. Several dams are located within Irvine and surrounding areas. Due to the proximity to these dams and the potential for inundation to impact the community, the HMPC identified dam failure as a hazard of concern. Droughts are a recurring and potentially severe hazard in Irvine. Irvine does not produce its own energy and is not at any more risk of energy shortage than surrounding communities. Irvine is in Orange County, which has experienced several health-related incidents in the past. It is within proximity to a major airport, major attractions (i.e., Disneyland, etc.), and educational institutions introduce new opportunities for diseases in the region. The City, along with the rest of the country, is currently responding to a global pandemic (COVID-19), which has impacted staff and resources. While erosion occurs in certain areas of the City, this hazard is generally associated with other hazards like wildfire, landslide, and flooding. Refer to these hazards for any discussion regarding erosion. Expansive soils are located within the City. While they exist, the City requires compliance with the California Building Code, which is intended to mitigate hazards associated with this condition. Temperatures in Irvine do not fall to a level that would be considered a danger to public safety. Extreme heat has occurred in Irvine and is expected to be a future recurring issue. There are no known Alquist-Priolo fault zones located within Irvine; however, faults have been identified. As a result, the HMPC identifies fault rupture as a potential hazard of concern. Several stream courses transect the City and are identified within FEMA flood hazard zones. While significant flooding events have not affected properties within the City recently, the presence of these flood zones indicates the potential for future hazards.

Dam Failure

FEMA guidance SHMP OC HMP

Yes

Drought

SHMP OC HMP

Yes

Energy Shortage

SHMP

No

Epidemic, Pandemic, Vector-Borne Disease

SHMP

Yes

Erosion

FEMA guidance SHMP

No

Expansive Soil

FEMA guidance

No

Extreme Cold

FEMA guidance SHMP FEMA guidance SHMP FEMA guidance SHMP OC HMP

No

Extreme Heat

Yes

Fault Rupture

Yes

Flooding

FEMA guidance SHMP

Yes

Fracking

SHMP

No No

Fracking does not occur in Irvine.

Hail

FEMA guidance

Hail that is severe enough to pose a threat to people and property is too rare in Irvine to be included. The presence of uses storing, manufacturing, disposing, and transporting hazardous materials was identified as a concern for the HMPC. In addition, several major roadways, freeways, and rail lines transecting the City allow for the transport of these materials that could endanger the community if a release into the environment were to occur.

Hazardous Materials release

SHMP

Yes

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