HomeMy WebLinkAbout04.c. Receive Update on the 2024 Contra Costa County Local Hazard MItigation PlanPage 1 of 7
Item 4.c.
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March 5, 2024
TO: ADMINISTRATION COMMITTEE
FROM: AMANDA CAUBLE, ASSOCIATE ENGINEER
DAN FROST, SENIOR ENGINEER
REVIEWED BY: SHARI DEUTSCH, RISK MANAGMENTADMINISTRATOR
DANEA GEMMELL, PLANNING AND DEVELOPMENT SERVICES DIVISION
MANAGER
GREG NORBY, DEPUTY GENERAL MANAGER - OPERATIONS
ROGER S. BAILEY, GENERAL MANAGER
SUBJECT: RECEIVE UPDATE ON THE 2024 CONTRA COSTA COUNTY LOCAL
HAZARD MITIGATION PLAN
Central San is partnering with Contra Costa County and other public entities within the County to update its
multi -jurisdictional Local Hazard Mitigation Plan. Staff will present an update on the preparation of the 2024
Local Hazard Mitigation Plan and provide a schedule for completion and required Board adoption of the
final plan. In 2023, a coalition of Contra Costa County cities and special districts embarked on a planning
process to prepare for and lessen the impacts of natural hazards by updating the 2018 Contra Costa
County Local Hazard Mitigation Plan (LHMP). Responding to federal mandates in the Disaster Mitigation
Act of 2000 (Public Law 106- 390), the partnership was formed to create a hazard mitigation strategy that
can be applied to the defined planning area and used to ensure eligibility for specified Federal Emergency
Management Agency (FEMA) funding assistance.
The goal of the LHMP is to reduce loss of life and property by minimizing the impact of disasters. It begins
with agencies identifying natural disaster risks and vulnerabilities that are common in their area. After
identifying these risks, the agency develops long-term strategies for protecting people and property from
similar events. This effort is a comprehensive update to the 2018 LHMP. The coalition of partners
involved in this update includes unincorporated Contra Costa County, city and town governments, and
special districts. The planning area for this update is defined as the Contra Costa County Operational
Area. The result of this coordinated planning effort will be a FEMA and California Office of Emergency
Services (Cal OES) approved multi -jurisdictional, multi -hazard mitigation plan.
Citizens were asked to contribute by sharing local knowledge of their individual area's vulnerability to
natural hazards based on past occurrences. Public involvement was solicited via a comprehensive public
outreach campaign that included three rounds of public meetings, web -based information, a questionnaire,
and multiple social media updates.
By participating in the LHMP, Central San will maintain its eligibility to apply for funding assistance under
the Hazard Mitigation Grant Program and the Pre -Disaster Mitigation Program. The funds can be used to
March 5, 2024 Regular ADMIN Committee Meeting Agenda Packet - Page 101 of 110
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implement the long-term hazard mitigation measures specified within Central San's portion of the updated
plan before and after a major disaster declaration. As an example, staff applied for and expect to receive
pre -disaster mitigation grant funds through the Building Resilient Infrastructure and Communities (BRIC)
Program to implement the Grayson Walnut Creek Levee Improvement Project. This project is a
partnership with the Contra Costa County Flood Control District to raise the Grayson and Walnut Creek
levees along the treatment plant to protect against a 500-year flood event.
The updated LHMP addresses the following natural hazards:
• Climate Change
• Dam and Levee Failure
• Drought
• Earthquake
• Flooding
• Landslide
• Severe Weather
• Tsunami
• Wildfire
• Sea Level Rise
Staff determined that Central San is "uniquely vulnerable" (more vulnerable compared to hazards facing
the entire County) to all except the Tsunami natural hazard. Human-caused/Technological Hazards are not
required by FEMA to be included in the plan; however, the following hazards were evaluated by
participating agencies in order to develop a more comprehensive local hazard mitigation plan: Terrorism,
Cybersecurity Threats, Hazardous Materials incidents, Utility Interruptions and Active Shooter incidents.
Staff determined that Central San is "uniquely vulnerable" (more vulnerable compared to hazards facing
the entire County) to Cybersecurity Threats, Hazardous Materials Incidents and Utility Interruptions.
For each hazard identified to affect Central San's jurisdiction, at least one mitigation project must be
identified and included in the LHMP. Some projects address multiple hazards. Central San is not required
to complete all the projects in the LHMP, but if Central San wants to pursue FEMA funding assistance for
a particular project or effort, it needs to be included in the LHMP. A sample of these projects include the
following:
• Implement seismic retrofits of District buildings (Maintenance Reliability Center, Warehouse, and
Laboratory) and Treatment Plant facilities to protect from earthquake damage.
• Raise wet weather basin levees and Grayson and Walnut Creek levees to protect from flooding.
• Implement wet weather capacity expansions to relieve hydraulic and process bottlenecks in the
collection system and treatment plant to better manage severe weather events.
• Implement the large diameter sewer and force main inspection, condition assessment, and
renovation program to assess pipe condition prioritize replacement to maintain resiliency against
severe weather and drought.
• Implement vulnerability assessment/improvements for natural gas, landfill gas, communications,
potable water, and other critical utility services to maintain resiliency from utility interruptions.
• Implement HVAC-related improvements for electrical facilities at the treatment plant and pump
stations to manage extreme temperatures and severe weather.
The full list of projects will be included in the draft LHMP. The LHMP is considered a living document. As
awareness of additional hazards develop, and new strategies and projects are conceived to offset or
prevent losses arising from natural disasters, the LHMP could be evaluated and revised regularly.
The 2024 LHMP update has been on an accelerated timeline because the five-year update was originally
scheduled to be completed in 2023. Progress made to date and next steps are listed below. After FEMA
provides conditional approval of the Plan, each participating agency is required to adopt the Plan in order
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for the Plan to be considered FEMA-approved. Staff will return to the Board to request adoption of the
LHMP in the summer of 2024.
• September 2023 — LHMP Update Kickoff with County Staff.
• December 2023 — County -wide Workshop with Participating Agencies and Identification of Hazards
and Mitigation Projects. Staff provided a Hazards Assessment, a Capabilities Assessment, and a
preliminary list of mitigation projects to the County.
• February/March 2024 — Draft Plan for Central San Review.
• Spring 2024 — Plan Finalized and Sent to FEMA forApproval.
• Late -Spring 2024 — FEMA Conditional Approval.
• Summer 2024 — Central San Board Adopts FEMA approved Plan by Resolution.
Strategic Plan Tie -In
GOAL FIVE: Safety and Security
Strategy 1 - Reduce and eliminate risks of injury or illness
GOAL SIX: Infrastructure Reliability
Strategy 2 - Execute long-term capital renewal and replacement program
ATTACHMENTS:
1. Presentation 2024 LHMP Update
March 5, 2024 Regular ADMIN Committee Meeting Agenda Packet - Page 103 of 110
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March 5, 2024
Local Hazard
Mitigation
Plan Update
Administration Committee
Amanda Cauble
Associate Engineer ,
March 5, 2024 Regular ADMIN Committee Meeting Agenda Packet - Page 104 of 110
Page 5 of 7
Local Hazard Mitigation Plan
Goal of the plan is to reduce loss of life and property by
minimizing the impact of disasters.
It begins with agencies identifying natural disaster risks and
vulnerabilities that are common in their area.
After identifying these risks, the agency develops long-term
strategies for protecting people and property from similar
events.
By participating in the plan, Central San becomes eligible for
FEMA pre- and post -disaster mitigation funding.
Pre -disaster mitigation: Building Resilient Infrastructure and
Communities (BRIC) grant — applied for Grayson Walnut Creek Levee
Improvement Project
Local Hazard Mitigation
Plan Participation
Contra Costa County is the Lead Agency.
Plan is updated every five years, last update 2018
Ten municipalities, fire districts, water and
wastewater agencies, and school districts
participating.
Identify hazards unique to our jurisdiction.
Identify projects to mitigate hazards identified.
Complete a Capabilities Assessment to
document Central San can implement projects.
FEMA Conditionally Approved plan is adopted
by Board of Directors.
March 5, 2024 Regular ADMIN Committee Meeting Agenda Packet - Page 105 of 110 2
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Central San is Uniquely Vulnerable to Multiple
Hazards
NATURAL HAZARDS HUMAN-CAUSED/TECHNOLOGICAL
HAZARDS
Climate Change Severe Weather Terrorism
Dam and Levee Tsunami Weapons of Mass Destruction
Failure Wildfire Cybersecurity Threats
Drought Sea Level Rise Hazardous Materials Incidents
Earthquake Utility Interruptions
Flooding Active Shooter Incidents
Landslide
Identification and
Sample List of Projects
Each hazard must be mitigated by at
least one project in the LHMP
Not obligated to complete projects
If we anticipate to seek FEMA funding
for a project, it needs to be listed in plan
Full list of projects will be included in the
draft LHMP
As awareness of additional hazards
develop, and new strategies and projects
are conceived, the LHMP could be
evaluated and revised regularly
Seismic retrofits of District buildings and Treatment Plant
facilities
Raise wet weather basin levees and Grayson and Walnut Creek
levees to protect from flooding
Implement the large diameter sewer and force main
inspections and condition assessment to prioritize replacement
to maintain resiliency against severe weather and drought
Implement vulnerability assessment/improvements for critical
utility services to maintain resiliency from utility interruptions
Implement HVAC-related improvements for electrical facilities
to manage extreme temperatures and severe weather
ftCENTRAL SAN
March 5, 2024 Regular ADMIN Committee Meeting Agenda Packet - Page 106 of 110 3
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Schedule
September 2023 — LHMP Kickoff
December 2023 — County Workshop, Hazard and MitigationSAW
Project Identification
February/March 2024 —Draft Plan for Central San Review
—��
Spring 2024 — Plan Finalized and Sent to FEMA for Approval
Late -Spring 2024 — FEMA Conditional Approval
Summer 2024 — Central San Board Adopts FEMA approved
Plan by Resolution
March 5, 2024 Regular ADMIN Committee Meeting Agenda Packet - Page 107 of 110 4