HomeMy WebLinkAboutOC SAN 25-05RESOLUTION NO. OC SAN 25-05
A RESOLUTION OF THE BOARD OF DIRECTORS OF THE
ORANGE COUNTY SANITATION DISTRICT ADOPTING
THE 2025 ORANGE COUNTY WATER AND WASTEWATER
MULTI -JURISDICTIONAL HAZARD MITIGATION PLAN
WHEREAS, the Orange County Sanitation District recognizes that the threat from
natural hazards poses a risk to water and wastewater utilities and the individuals they
serve, and impacts can result in regional economic and public health consequences; and
WHEREAS, the Orange County Sanitation District and 14 other agencies
participated in the development of the Orange County Water and Wastewater Multi -
Jurisdictional Hazard Mitigation Plan (MJHMP) in accordance with federal laws, including
the Robert T. Stafford Disaster Relief and Emergency Assistance Act, as amended; the
National Flood Insurance Act of 1968, as amended; and the National Dam Safety
Program Act, as amended; and
WHEREAS, the Orange County Water and Wastewater MJHMP identifies
mitigation goals and actions to reduce or eliminate long-term risk to people and property
in Orange County from the impacts of future hazards and disasters; and
WHEREAS, a Planning Team was formed to participate in the FEMA-prescribed
mitigation planning process to prepare the MJHMP; and
WHEREAS, a public outreach strategy to include whole community planning was
implemented by including posting information on member agency websites, email and
social media distribution, community survey, and presentations at the community
meetings for inclusion and opportunity to participate in the planning process by
community members, community -based organizations and people with access and
functional needs; and
WHEREAS, on December 3, 2024, the MJHMP was provided to the California
Office of Emergency Services (CaIOES) Hazard Mitigation Division for review; and
WHEREAS, the MJHMP was revised based on CalOES requirements relating to
the new Federal Hazard Mitigation Standards released in 2023 by the Federal Emergency
Management Agency (FEMA); and
OC SAN 25-05-1
WHEREAS, the Orange County Sanitation District with the consultant made all
required changes, and the plan was approved by CalOES and submittal to FEMA for
review on February 14, 2025; and
WHEREAS, the Orange County Sanitation District has requested FEMA to grant
approval pending adoption in the event there are any required changes, and subject to
the member agencies adopting resolutions approving and adopting the MJHMP once
FEMA review states all requirements are met; and
WHEREAS, adoption by the Orange County Sanitation District Board of Directors
demonstrates its commitment to hazard mitigation and achieving the goals outlined in the
Orange County Water and Wastewater Multi -Jurisdictional Hazard Mitigation Plan.
NOW, THEREFORE, THE BOARD OF DIRECTORS OF THE ORANGE COUNTY
SANITATION DISTRICT DOES HEREBY RESOLVE AS FOLLOWS:
Section 1. That the Board of Directors hereby adopts the 2025 Orange County
Water and Wastewater Multi -Jurisdictional Hazard Mitigation Plan.
Section 2. That while content related may require revisions to meet the plan
approval requirements, changes occurring after adoption will not require the Board of
Directors to re -adopt any further iterations of the plan. Subsequent plan updates following
the approval period for this plan will require separate adoption resolutions.
Section 3. That this Resolution shall take effect immediately upon its adoption.
PASSED AND ADOPTED at a regular meeting of the Orange County Sanitation
District's Board of Directors held July 23, 2025.
Ryan P. Gallagher
Board Chairman
ATTEST:
Lore -
Kelly Lore ( ul 25, 2025 07:00:54 PDT)
Kelly A. Lore, MMC
Clerk of the Board
OC SAN 25-05-2
APPROVED AS TO FORM:
Scott C. Smith
General Counsel
OC SAN 25-05-3
STATE OF CALIFORNIA )
ss
COUNTY OF ORANGE )
I, Kelly A. Lore, Clerk of the Board of Directors of the Orange County Sanitation
District, do hereby certify that the foregoing Resolution No. OC SAN 25-05 was passed
and adopted at a regular meeting of said Board on the 23rd day of July 2025, by the
following vote, to wit:
AYES: Joyce Ahn, Debbie Baker, Pat Burns, Doug Chaffee, Jon
Dumitru, Ryan Gallagher, Johnathan Ryan Hernandez,
Lisa Landau, Carlos Leon, Christine Marick, Scott Minikus,
Jordan Nefulda, Andrew Nguyen, Jamie Valencia, Chad
Wanke, Erik Weigand, Rose Espinoza (Alternate), Dan
Ferons (Alternate), Gene Hernandez (Alternate), Kelly
McBride (Alternate), Art Perry (Alternate), Cindy Tran
(Alternate), Kathleen Treseder (Alternate) and John
Warren (Alternate)
NOES: None
ABSENT: Glenn Grandis
ABSTENTIONS: None
IN WITNESS WHEREOF, I have hereunto set my hand and affixed the official seal
of Orange County Sanitation District this 23rd day of July 2025.
t<&Uq Lore'
Kelly Lore ( ul 25, 2025 07:00:54 PDT)
Kelly A. Lore, MMC
Clerk of the Board of Directors
Orange County Sanitation District
OC SAN 25-05-4
OC6SAN
ORANGE COUNTY SANITATION DISTRICT
Orange County Water and Wastewater
Multi -Jurisdictional Hazard Mitigation Plan
Annex C: Orange County Sanitation District
n
11
WER O C
OC SAN 25-05-5
Orange County Water & Wastewater Multi -Jurisdictional Hazard Mitigation Plan
2024
Contents
C.1 Hazard Mitigation Plan Point of Contact and Development Team.....................................1
C.2 Jurisdiction Profile..........................................................................................................1
C.3 Hazards..........................................................................................................................2
C.4 Hazard Maps..................................................................................................................5
C.5 Vulnerability and Risk Assessment...............................................................................13
C.6 Capabilities Assessment..............................................................................................16
C.7 Mitigation Strategy........................................................................................................20
C.7.1 Mitigation Goals............................................................................................ 20
C.7.2 Mitigation Actions.......................................................................................... 20
C.7.3 Completed or Removed Mitigation Initiatives...................................................24
C.8 Plan Integration............................................................................................................25
Exhibits
Exhibit C-1. Planning Team Lead...............................................................................................1
Exhibit C-2. Internal Hazard Mitigation Planning Development Team............................................1
Exhibit C-3. OC San Hazard Identification..................................................................................3
Exhibit C-3. OC San Hazard Identification (cont.).......................................................................4
Exhibit C-4. Fire Hazard and OC San Wastewater Infrastructure..................................................6
Exhibit C-5. Flood Hazard and OC San Wastewater Infrastructure...............................................7
Exhibit C-6. Fault Rupture Hazard and OC San Wastewater Infrastructure....................................8
Exhibit C-7. Seismic Shaking Hazard and OC San Wastewater Infrastructure................................9
Exhibit C-8. Liquefaction Hazard and OC San Wastewater Infrastructure...................................10
Exhibit C-9. Landslide Hazard and OC San Wastewater Infrastructure.......................................11
Exhibit C-10. Tsunami Hazard and OC San Wastewater Infrastructure.......................................12
Exhibit C-11. OC San Infrastructure and Exposure to Hazards...................................................13
Exhibit C-12a. Planning and Regulatory Capabilities Summary..................................................16
Exhibit C-12b. Administrative and Technical Capabilities Summary...........................................18
Exhibit C-12c. Financial Capabilities Summary........................................................................19
Exhibit C-12d. Education and Outreach Capability Summary....................................................19
Exhibit C-13. OC San Mitigation Actions..................................................................................21
C-
i i OC SAN 25-05-6
Orange County Water & Wastewater Multi -Jurisdictional Hazard Mitigation Plan
2024
ORANGE COUNTY SANITATION DISTRICT ANNEX
Orange County Sanitation District (OC San) is a participant (Member Agency [MA]) in the Orange
County Water and Wastewater Multi -Jurisdictional Hazard Mitigation Plan (MJHMP). Asa
participant MA, OC San representatives were part of the MJHMP planning process and served on
the planning team responsible for the plan update; refer to Section 2 of the MJHMP. The primary
plan, including the MJHMP procedural requirements and planning process apply to OC San.
This annex details the hazard mitigation planning elements specific to OC San and describes how
OC San's risks vary from the planning area. This annex is not intended to be a standalone
document but supplements the information contained in the primary plan. All sections of the
primary MJHMP, including the planning process and other procedural requirements, apply to and
were met by OC San. The primary plan treats the entire county as the planning area and identifies
which MAs are subject to a profiled hazard. The purpose of this annex is to provide additional
information specific to OC San with a focus on the risk assessment and mitigation strategies.
CA HAZARD MITIGATION PLAN POINT OF CONTACT AND
DEVELOPMENTTEAM
The representative listed in Exhibit C-1 lead the OC San planning team and attended meetings on
behalf of OC San and coordinated the hazard mitigation planning efforts with OC San staff and the
consultant team supporting the effort.
Exhibit C-1. Planning Team Lead
Name: John Frattali
Title: Safety and Health Manager
Telephone: 714-593-7162
Email: jfrattaliC�ocsan.gov
OC San followed the planning process detailed in Section 2 and formed an internal team to
support and provide information for the plan update. The following staff served as OC San's
internal hazard mitigation planning development team.
Exhibit C-2. Internal Hazard Mitigation Planning Development Team
Krystal Aleman Security and Emergency Planning Specialist
Outreach to the public within OC San's service area was performed to ensure residents could
access information on this planning effort. To reach the largest number of people possible, OC San
published a news release on their website and posted the MJHMP survey to their social media
platforms.
C.2 JURISDICTION PROFILE
Service Population: 2.6 million
OC San is responsible for safely collecting, treating, and disposing wastewater (sewage) and
industrial waste in central and northwest Orange County. Owning 396 miles of wastewater
pipeline, OC San serves 2.6 million residents in 20 cities, four special districts and the
C-1 OC SAN 25-05-7
Orange County Water & Wastewater Multi -Jurisdictional Hazard Mitigation Plan
2024
unincorporated areas within north and central Orange County. OC San is governed by a board of 25
individuals; 24 board members are elected officials appointed by the cities and special districts
served, and one is a representative from the Orange County Board of Supervisors.
OC San treats approximately 185 million gallons of wastewater each day at either Plant No. 1 in
Fountain Valley or Plant No. 2 in Huntington Beach and releases it into the ocean five miles from
shore and approximately 200 feet below the surface. The one -mile -long diffuser section on the five -
mile ocean outfall contains 503 portholes through which treated wastewater are slowly released.
Up to 70 million gallons of treated wastewater are reclaimed each day for use by the Orange
County Water District (OCWD) to supplement the recharge of the groundwater basin, landscape
irrigation, and injection into the sweater intrusion barrier along the coast.
In addition to its primary role of managing wastewater for north and central Orange County, OC San
is also concerned about ocean water quality and protecting the coastline from urban runoff
contamination. Therefore, OC San's charter was modified to allow OC San to accept dry weather
urban runoff contaminated with bacteria in the sewer system. The dry weather urban runoff is then
treated with the raw sewage entering the plants and disinfected before it is released to the ocean
outfall system. Currently, OC San recycles all biosolids produced for beneficial use by the
agricultural industry and runs an award -winning ocean monitoring program that evaluates water
quality, sediment quality and sea life.
C.3 HAZARDS
This section is intended to profile the hazards and assess the vulnerabilities that OC San faces,
distinct from that of the county -wide planning area. The hazard profiles in the primary MJHMP
discuss overall impacts to the planning area and describe the hazard problem description, hazard
extent, magnitude/severity, previous occurrences of hazard events and the likelihood of future
occurrences. For more information on risk assessment methodologies, see Section 3.
OC San's service area is subject to most of the other hazards identified for the planning area. Many
of these hazards are dispersed and may affect the entire region, including power outages, drought,
seismic shaking, and windstorms. Based on the risk assessment, the OC San development team
discussed which hazards should or should not be profiled in the primary plan. This discussion
resulted in the identification of the following hazards that affect OC San and summarized their
probability of future occurrence, level of impact and significance as outlined in Exhibit C-3.
Detailed hazard profiles for the planning area are provided in Section 3 of the primary plan.
C-2 OC SAN 25-05-8
Orange County Water & Wastewater Multi -Jurisdictional Hazard Mitigation Plan
2024
Exhibit C-3.00 San Hazard Identification
Impact•
San Countywide
Hazard Type ProbabilityC
ImpactArea
..
Human -Caused Hazards: Power Outage 4
3 4
..
Consideration
4 57.6 High High
3 45 High Medium
3 45 High Medium
Flood 3
4
4
4
4
Seismic Hazards: Fault Rupture 3
Human -Caused Hazards: Terrorism (Cyber
4
3
3
2 44 High High
Threat)
3
4
Coastal Hazards: Tsunami 3
4 43.2 High Low
Human -Caused Hazards: Terrorism (MCI)
3
3
4
4
43.2
High Low
Seismic Hazards: Seismic Shaking
3
3
4
4
43.2
High
High
Seismic Hazards: Seismic Liquefaction
3
3
4
4
43.2
High High
Human -Caused Hazards:
2
3
4
3
26.8
Medium Low
Contamination/Saltwater Intrusion
3
2
2
2
24
Coastal Hazards: Coastal Storm
Medium Medium
Human -Caused Hazards: Hazardous
Medium Low
3
2
2
1
21
Materials
3
1
2
2
19.2
Coastal Hazards: Coastal Erosion
Medium Medium
Medium Low
Medium Low
Geological Hazards: Land Subsidence
2
3
2
2
19.2
Geological Hazards: Expansive Soils
2
2
3
2
18.8
Coastal Hazards: Sea Level Rise
3
1
2
1
16.2
Medium
Medium
Severe Weather: Windstorm
2
2
1
1
11.2
Low*
Medium
Wildfire
2
2
1
1
11.2
Low* High
Severe Weather: Drought
2
1
1
1
8
Low* Medium
Severe Weather: Extreme Heat
1
2
1
2
6.6
Low* Medium
Urban Fire
1
1
2
1
5.4
Low* Low
Geological Hazards: Landslide and Mudflow
1
1
1
1
4
Low* Medium
Dam/Reservoir Failure
N/A
N/A
N/A
N/A
N/A
N/A Medium
Orange highlights indicate differences between hazard planning consideration levels for OC San and the overall planning area. Blue highlights indicate N/A hazards.
*Any hazards identified as a low priority for OC San have not been analyzed nor have mitigation strategies been developed.
C-3 OC SAN 25-05-9
Orange County Water & Wastewater Multi -Jurisdictional Hazard Mitigation Plan
2024
Exhibit C-3.00 San Hazard Identification (cont.)
Geographic Affected Area Primary Impacts
■ 1 = Isolated, less than 10% of planning area ■ 1 = Negligible, little to no damage
■ 2 = Small, 10-30% of planning area ■ 2 = Limited, some damage, loss of service for days
■ 3 = Medium, 30-60% of planning area ■ 3 = Critical, devastating damage, loss of service for
■ 4 =Large, 60-100% of planning area months
Probability of Future Occurrences
■ 1 = Unlikely, less than 1 % chance of occurrence in next
100 years or has a recurrence interval of greater than every
100 years.
■ 2 = Occasional, between 1 and 10% chance of occurrence
in the next year or has a recurrence interval of 11 to 100
years.
■ 3 = Likely, between 10 and 100% chance of occurrence in
next year or has a recurrence interval of 10 years or less.
• 4 = Highly Likely, near 100% chance of occurrence in next
year or happens every year.
■ 4 = Catastrophic, catastrophic damage,
uninhabitable conditions
Secondary Impacts
■ 1 = Negligible, no loss of function, downtime,
and/or evacuations
■ 2 = Limited, minimal loss of function, downtime,
and/or evacuations
■ 3 = Moderate, some loss of functions, downtime,
and/or evacuations
• 4 = High, major loss of function, downtime, and/or
evacuation
The Federal Emergency Management Agency (FEMA) Local Mitigation Planning Handbook requires
each agency to identify the magnitude/severity of each hazard to their infrastructure. The
identification of hazards provided in Exhibit C-3 is highly dependent on the location of facilities
within each agency's jurisdiction and takes into consideration the history of the hazard and
associated damage (if any), information provided by agencies specializing in a specific hazard (e.g.,
FEMA, California Geological Survey), and relies upon each agency's expertise and knowledge. The
table was created with input from the Water Emergency Response Organization of Orange County
(WEROC), consultant staff, and OC San.
Changes to Risk/Vulnerability between OC San and the Planning Area
OC San has assets along the coast within tsunami zones,
Coastal Hazards: Tsunami
increasing the impacts a tsunami may have compared to other
MAs further inland.
OC San has multiple large rivers running through their service area
Flood
with assets located within floodplains, increasing their potential
impacts from a flooding event.
Geological Hazards: Expansive
OC San serves the northern portion of Orange County and
Soils
therefore has a moderately increased risk of land subsidence due
to soil types within their service area.
Geological Hazard: Land
OC San serves the northern portion of Orange County and
Subsidence
therefore has a moderately increased risk of land subsidence due
to soil types within their service area.
Human -Caused Hazards:
With assets located in proximityto the coastline, OC San has
Contamination/Saltwater Intrusion
higher impacts from saltwater intrusion potentially damaging
assets and pipelines.
Human -Caused Hazards:
Multiple large highways and major transportation routes run
Hazardous Materials
through the OC San service area. Hazardous materials may be
C-4 OC SAN 25-05-10
Orange County Water & Wastewater Multi -Jurisdictional Hazard Mitigation Plan
2024
Human -Caused Hazards:
Terrorism (MCI)
Seismic Hazards: Fault Rupture
Low Priority Hazards
Dam/Reservoir Failure
C.4 HAZARD MAPS
transported along these routes, increasing the potential for spills
to occur.
OC San has an increased concern regarding terrorism attempts
due to their proximity to high profile targets and increased civil
unrest within their community.
OC San serves the northern half of Orange County and has assets
located in close proximity to large fault lines, increasing their
impacts from fault rupture.
Due to the number of hazards identified in the Planning Area,
these low priority hazards have not been analyzed further by OC
San to allow greater focus on the other hazards of concern.
These hazards are not applicable to OC San due to lack of dams
under their jurisdiction.
The following maps show the location of hazard zones within the jurisdiction relative to potable
water systems, as applicable.
C-5 OC SAN 25-05-11
Orange County Water & Wastewater Multi -Jurisdictional Hazard Mitigation Plan
2024
Exhibit C-4. Fire Hazard and OC San Wastewater Infrastructure
C-6 OC SAN 25-05-12
Orange County Water & Wastewater Multi -Jurisdictional Hazard Mitigation Plan
2024
Exhibit C-5. Flood Hazard and OC San Wastewater Infrastructure
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WASTEWATER INFRASTRUCTURE
C-7 OC SAN 25-05-13
Orange County Water & Wastewater Multi -Jurisdictional Hazard Mitigation Plan
2024
Exhibit C-6. Fault Rupture Hazard and OC San Wastewater Infrastructure
Gravity Maim
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WASTEWATER INFRASTRUCTURE
C-8 OC SAN 25-05-14
Orange County Water & Wastewater Multi -Jurisdictional Hazard Mitigation Plan
2024
Exhibit C-7. Seismic Shaking Hazard and OC San Wastewater Infrastructure
ORANGE COUNTY SANITATION DISTRICT
WASTEWATER INFRASTRUCTURE
Gravily Waits
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C-9 OC SAN 25-05-15
Orange County Water & Wastewater Multi -Jurisdictional Hazard Mitigation Plan
2024
Exhibit C-8. Liquefaction Hazard and OC San Wastewater Infrastructure
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ORANGE COUNTY SANITATION DISTRICT
WASTEWATER INFRASTRUCTURE
C-10 OC SAN 25-05-16
Orange County Water & Wastewater Multi -Jurisdictional Hazard Mitigation Plan
2024
Exhibit C-9. Landslide Hazard and OC San Wastewater Infrastructure
ORANGE COUNTY SANITATION DISTRICT
WASTEWATER INFRASTRUCTURE
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C-11 OC SAN 25-05-17
Orange County Water & Wastewater Multi -Jurisdictional Hazard Mitigation Plan
2024
Exhibit C-10. Tsunami Hazard and OC San Wastewater Infrastructure
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lWand pnalar
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ORANGE COUNTY SANITATION DISTRICT
WASTEWATER INFRASTRUCTURE
C-12 OC SAN 25-05-18
Orange County Water & Wastewater Multi -Jurisdictional Hazard Mitigation Plan
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C.5 VULNERABILITY AND RISK ASSESSMENT
Assessing vulnerabilities shows the unique characteristics of individual hazards and begins the
process of narrowing down locations within OC San's service area that are vulnerable to specific
hazard events. The vulnerability assessment considered unique local knowledge of hazards and
impacts and a GIS overlaying method for examining such vulnerabilities more in depth. Using these
methods vulnerable populations, infrastructure, and potential losses from hazards can be
estimated.
Assets Susceptible to Hazard Events
OC San's infrastructure is outlined in Exhibit C-11, which lists the number of OC San's
infrastructure assets are located within the mapped hazard zones identified above.
Exhibit C-11. OC San Infrastructure and Exposure to Hazards
Hazard
Moderate
Infrastructure Type
Admin Manholes Lift Treatment Diversion
Buildings M Stations Plants Structures
0 0 4 0 2
Wastewater
Pipeline
8.7
Fire Hazard High
Zone
0
0
0
0
0
11.0
Very High
0
0
3
0
0
6.3
FEMA Flood 100-Year
0
9
1
2
39
96.8
Zone 500-Year
0
33
9
0
6
266.1
Alquist-Priolo Rupture
Zone
0
0
0
0
0
1.8
Moderate
0
0
0
0
0
0.61
Seismic Shaking High
1
55
11
4
45
444.9
Extreme
0
48
8
0
29
355.5
Moderate
0
76
0
0
22
395.7
Liquefaction
High
1
0
0
2
31
186.2
Very High
0
0
0
1
1
15.9
Unknown
0
0
0
0
4
29.6
Landslide Zone 0 0 2 0 5 5.3
Tsunami Zone 1 0 3 1 0 5.0
Several miles of OC San's pipeline system along with two treatment plants are located within areas
identified as susceptible to flooding. Lift stations are also located within areas mapped as a very
high fire hazard zone. Similarly, several miles and facilities, including lift stations, diversion
structures and treatment plants are located within areas identified as having a high or extreme risk
of ground shaking and a moderate, high, and very high risk of liquefaction during an earthquake. In
addition, a pipeline in Huntington Beach crosses a mapped fault zone three times and lift stations
and a treatment plant are located within a tsunami zone.
Vulnerabilities/Impacts to Hazard Events
OC San provides wastewater services across the central and northwestern portion of Orange
County. Approximately 2.6 million people reside in the service area.
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Orange County Water & Wastewater Multi -Jurisdictional Hazard Mitigation Plan
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Coastal Hazards: Coastal Erosion
Coastal erosion does not have a direct impact on
vulnerable populations within the service area.
Residents living along the coast are most impacted by
Coastal Hazards: Coastal Storm
increased coastal storms. Populations living in public
areas along the coast (unhoused) may experience greater
impacts.
Coastal Hazards: Sea Level Rise
Sea level rise does not have a direct impact on vulnerable
populations within the service area.
Tsunami impact is most impactful on populations along
the coastline that may be living in public areas (unhoused),
Coastal Hazards: Tsunami
those without access to transportation or limited options,
individuals with limited mobility that cannot escape within
a tsunami zone.
Populations living in drainages (unhoused), those without
Flood
access to transportation or limited options, individuals
with limited mobility, and populations with language
limitations may experience greater impacts.
Geological Hazards: Expansive
Expansive soil does not have a direct impact on vulnerable
Soils
populations within the service area.
Geological Hazards: Land
Land subsidence does not have a direct impact on
Subsidence
vulnerable populations within the service area.
Contamination can be most impactful on populations
without access to news outlets for do not use notifications
Human -Caused Hazards:
and populations with language limitations that may not
Contamination/Saltwater Intrusion
understand boil water notices or contamination
announcements.
Saltwater Intrusion does not have a direct impact on
vulnerable populations within the service area.
Human -Caused Hazards:
All populations within the service area are equally
Hazardous Materials
vulnerable to this threat.
The entire population within the service area is susceptible
Human -Caused Hazards: Power to potential outages, however increased vulnerabilities
Outage exist for residents and facilities reliant on electricity -
dependent medical equipment such as ventilators and
monitoring equipment.
Human -Caused Hazards: Terrorism All populations within the service area that use the internet
(CyberThreat) are equally vulnerable to this threat.
Human -Caused Hazards: Terrorism All populations within the service area are equally
(MCI) vulnerable to this threat.
Populations living along major fault lines are vulnerable to
Seismic Hazards: Fault Rupture
fault ruptures. The highest vulnerabilities exist for
populations located directly on or next to the faults.
All populations within the service area are vulnerable to
Seismic Hazards: Seismic Shaking
seismic shaking. The highest vulnerabilities exist for
populations with older housing that has not been
retrofitted to withstand strong earthquakes
The major liquefaction zone exist throughout most of the
Seismic Hazards: Seismic
OC San service area, causing increased vulnerabilities to
Liquefaction
all neighborhoods and shopping centers within the these
areas.
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Orange County Water & Wastewater Multi -Jurisdictional Hazard Mitigation Plan
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Changes in Land Use and Development
With a large service demand, OC San's service area has experienced various land use changes and
development over the past five years. Past development projects performed by OC San include the
expansion of the Groundwater Replenishment System in partnership with Orange County Water
District. To meet growing demand, OC San is in the process of developing multiple facilities
including large projects at the Fountain Valley Reclamation Plant and a treatment plant in
Huntington Beach, as well as having recently completed a project at their Headquarters.
Vulnerabilities Associated with Climate Change
Coastal Hazards: Tsunami
Flood
Human -Caused Hazard:
Power Outage
Human -Caused Hazards:
Terrorism (Cyber Threat)
Human -Caused Hazards:
Terrorism (MCI)
Seismic Hazards: Fault
Rupture
Seismic Hazards: Seismic
Shaking
OC San's vulnerability to tsunamis is not expected to change due to climate
change.
Climate change is expected to cause some higher -level flood waters within
OC San service area along the Santa Ana River, Black Star Canyon and other
creeks and rivers throughout the county. The 100-year flooding event may
expand into the 500-year flood zones on a more frequent basis.
Climate change will likely increase OC San's vulnerability to power outages
as local electric companies implement protocols such as rolling blackouts
or targeted shutoffs that may impact OC San facilities.
Connections between climate change and cyber based terrorism have not
been identified.
Climate change has no direct link to human -caused hazards and is
expected to follow the impacts described in the base plan.
There are no expected changes to the frequency or intensity of fault
ruptures occurringwithin OC San's service area as a result of climate
change.
Climate change is not expected to cause any changes to the frequency or
intensity of seismic shaking occurring within OC San's service area.
Climate change is anticipated to impact liquefaction potential within OC
San, especially within the north, west, and central portions of the service
Seismic Hazards: Seismic Liquefaction area, as periods of both intense rain and drought could potentially increase
or decrease groundwater elevations affecting the risk of liquefaction,
depending on the circumstances.
Coastal Hazards: Coastal
The anticipated impacts associated with coastal erosion to OC San's
Erosion
service area from climate change will mirror the impacts discussed in the
base plan.
Coastal Hazards: Coastal
The anticipated impacts associated with coastal storms to OC San's
Storms
service area from climate change will mirror the impacts discussed in the
base plan.
Coastal Hazards: Sea
The anticipated impacts to vulnerability to sea level rise for OC San from
Level Rise
climate change will mirror the impacts discussed in the base plan.
Geological Hazards:
Climate change is not expected to impact expansive soils within OC San's
Expansive Soils
service area. The vulnerability follows that described in the base plan.
C-15 OC SAN 25-05-21
Orange County Water & Wastewater Multi -Jurisdictional Hazard Mitigation Plan
2024
Geological Hazards: Land OC San's vulnerability to land subsidence is not expected to change due to
Subsidence climate change.
Human -Caused Hazards: Vulnerability changes in contamination and saltwater intrusion within OC
Contamination/ Saltwater San due to climate change are expected to follow the changes outlined in
Intrusion the base plan.
Climate change has the potential of increasing hazardous materials
Human -Caused Hazards: Hazardous Materials releases resulting from transportation crashes or damage to storage
vessels.
C.6 CAPABILITIES ASSESSMENT
The capabilities assessment is designed to identify existing local agencies, personnel, planning
tools, public policy and programs, technology, and funds that have the capability to support hazard
mitigation activities and strategies outlined in this MJHMP. OC San's internal development team
revised the capabilities identified in the 2019 plan and collaborated to identify current local
capabilities and mechanisms available to the MA for reducing damage from future hazard events.
Exhibits C-12a through C-12d assess the authorities, policies, programs, and resources that the
jurisdiction has in place that are available to help with the long-term reduction of risk through
mitigation. These capabilities include planning and regulatory tools, administrative and technical
resources, financial resources, and education and outreach programs. OC San has the ability to
expand on and improve existing emergency management policies and programs to implement
mitigation programs. In some instances, methods of expansion and improvement have been
identified within a specific capability, while a majority of these capabilities are anticipated to be
expanded and improved upon through additional projects/initiatives underway by the Agency.
These have been included at the bottom of each table.
Exhibit C-12a. Planning and Regulatory Capabilities Summary
City/County;
Building Code Engineering
Department
Zoning Ordinance City/County
Subdivision Ordinance or
Regulations
City/County
Special Purpose Ordinance City/County
Growth Management
City/County
Ordinances
OC San complies with applicable building codes and
works with the cities within OC San's service area.
Expansion and Improvements: As retrofits and
replacement projects are identified, OC San will
anticipate meeting or exceedingthe latest building
codes to ensure greater resilience is incorporated into
their infrastructure.
OC San complies with applicable zoning ordinances
and works with cities within OC San's service area.
OC San complies with applicable subdivision
ordinances or regulations and works with cities within
OC San's service area.
OC San complies with applicable special purposes
ordinances and works with cities within OC San's
service area.
OC San complies with applicable growth
management ordinances and works with cities within
OC San's service area.
C-16
OC SAN 25-05-22
Orange County Water & Wastewater Multi -Jurisdictional Hazard Mitigation Plan
2024
Expansion and Improvements: Growth management
ordinances need to take into account wastewater
needs and available supplies for existing and future
populations. Working closely with the Cities and
County in the region, OC San can help better
understand how growth management ordinances
could impact these resources.
OC San complies with applicable site plan review
requirements and works with cities within OC San's
service area.
Expansion and Improvements: Developing better
Site Plan Review Requirements City/County methods and techniques to support site plan reviews
within Orange County can help ensure adequate
planning, design, and engineering analysis is available
to Cities and the County when new subdivisions are
proposed.
OC San complies with applicable General Plan
General Plans City/County requirements and works with cities within OC San's
service area.
Capital Improvements Plan Engineering
(CIP) Department
Economic Development
Plan
Integrated Emergency
Response Plan (IERP)
Continuity of Operations
Plan (COOP)
Post -Disaster Recovery
Plan
Emergency Public
Notification
Emergency
Communications
City/County
Risk Management
Division
OC San maintains a capital improvement plan.
Expansion and Improvements: Incorporation of
mitigation strategies into the CIP can help support
future funding of improvements necessary to
enhance water/wastewater systems.
OC San complies with applicable economic
development plans and works with cities within OC
San's service area.
The IERP is designed to address organized response
to emergency situations associated with natural or
manmade incidents.
Expansion and Improvements: Continued
improvement and enhancement of emergency
response plans can help ensure OC San is better
prepared forfuture incidents and can anticipate their
communities' needs.
Preparation of a COOP allows OC San to understand
operational needs during an outage or event that can
impact agency functions.
Expansion and Improvement: Development and
update of this plan should focus on integration of the
risk probabilities of event types and nature of
potential impacts, to better inform the COOP
planning and process.
Risk Management
This is a component of the IERP.
Division
Public Affairs OC San has identified personnel who carry out
Division responsibilities of public information.
Risk Management OC San has the capability to communicate with
Division WEROC and the Orange County Operational Area.
C-17
OC SAN 25-05-23
Orange County Water & Wastewater Multi -Jurisdictional Hazard Mitigation Plan
2024
Emergency Operations
OC San
OC San has a 24-hour operational capability of the
Center (EOC)
EOC staffing, feeding, and fuel for generators.
Damage Assessment
Engineering
The DAT will conduct preliminary damage
Teams (DAT)
Department
assessments to structures, critical facilities, and
infrastructure.
HR supports OC Sanin a variety of administrative
Human Resources
functions including employee training and
Human Resources
Division
identification of new staff positions. Hazard
mitigation activities are the responsibility of this
department.
■ Evaluate and update OC San's IERP and COOP annually to ensure alignment with best industry practices
and needs of the organization. Identify aspects of the MJHM P that are to be included in the IERP/COOP.
■ Identify external sources that can provide damage assessment and/or expand damage assessment
training internally.
■ Conduct disaster response fuel analysis and contingency planning with WEROC as a component of the
Southern California Catastrophic Plan.
■ Evaluate ability to contract with local fuel distributors and gas stations for emergency backup supply.
■ Train employees annually on OC San's IERP/COOP.
Exhibit C-12b. Administrative and Technical Capabilities Summary
Planner(s) or Engineer(s)
with Knowledge of Land
Development and Land
Management Practices
Engineer(s) or
Professional(s) Trained in
Construction Practices
Related to Buildings
and/or Infrastructure
Planners
Floodplain manager
Surveyors
Staff with Education or
Expertise to Assess the
Community's Vulnerability
to Hazards
Personnel Skilled in GIS
and/or HAZUS
Scientists Familiar with
the Hazards of the
Community
Emergency Manager
OC San staff utilizes an outside consultant with
Engineering Department input from engineering staff.
Licensed Civil Engineers and certified building
evaluators (Safety Assessment Program certified by
Engineering Department Cal OES).
Engineering Department
County of Orange
Floodplain Manager
Engineering Department
Risk Management
Division, WEROC,
County of Orange,
OCIAC
Information Technology
Division
Risk Management
Division, WEROC,
County of Orange
Risk Management
Division
Regional General Plan (RGP).
Adhere to county standards.
OC San utilizes an outside consultant with input
from engineering staff.
OC San has an emergency coordinator that
coordinates with WEROC and the County to assess
vulnerabilities.
OC San has staff skilled in GIS.
OC San has an emergency coordinator that
coordinates with WEROC, the County, and the
cities in our service area to identify hazards.
OC San employs a full-time emergency coordinator.
C-18 OC SAN 25-05-24
Orange County Water & Wastewater Multi -Jurisdictional Hazard Mitigation Plan
2024
Risk Management OC San has employees within the Risk
Grant Writers Division; Public Affairs Management and Public Affairs Divisions that can
Division write grants.
How can these capabilities be expanded and improved to reduce risk?
■ Provide initial and refresher training to OC San's registered engineers and other qualified individuals
regarding ATC-20, ATC-45, and FEMA P-154 for building inspections.
■ Provide gran management training to individuals in Risk Management and Public Affairs.
Exhibit C-12c. Financial Capabilities Summary
Community Development
Prepared, submitted, and received funding for
Block Grants (CDBG)
Public Affairs Division
various construction projects. Includes but not
limited to State Revolving Fund Loan.
OC San contributes funds to the capital
Capital Improvements
improvement project fund on a yearly basis.
Project Funding
Public Affairs Division
Expansion and Improvements: During annual
budgeting OC San can highlight hazard mitigation
strategies that support funding needs for the CIP.
Charge producers for sewer fees.
Fees for Water, Sewer,
Expansion and Improvements: Analysis of future
Gas, or Electric Service
Finance Division
fees for services should analyze potential mitigation
funding support opportunities to capture funding for
these projects.
Incur Debt Through
Finance Division
Use revenue refunding bonds to refinance existing
General Obligation Bonds
debt.
OC San actively applies for federal and state grants.
Expansion and Improvements: OC San can
Grants
Public Affairs Division
coordinate with the Municipal Water District of
Orange County (MWDOC) to better understand how
grant support could be conducted that benefits the
agency and the entire planning area as a whole.
Incur Debt Through
OC San has the ability to incur debt through
Revenue Bonds
revenue bonds.
■ Provide grant management training to individuals who develop grants.
Exhibit C-12d. Education and Outreach Capability Summary
Agency website Public Affairs OC San informs residents of special events,
emergency information, and news.
OC San informs residents of special events,
emergency information, and news.
Social media Public Affairs Expansion and Improvements: Increase the use of
social media resources for hazard mitigation related
content and information.
C-19 OC SAN 25-05-25
Orange County Water & Wastewater Multi -Jurisdictional Hazard Mitigation Plan
2024
OC San informs residents of special events,
emergency information, and news.
Memorandums Public Affairs Expansion and Improvements: Incorporate
mitigation information and analysis into
memorandums to continue sharing information.
■ Develop standardized messaging for known or potential disaster response efforts. Ensure that messaging
will work for the general community, as well as the Access, Disability, and Functional Needs community
specific to our utility.
■ Continue to identify opportunities to communicate hazard mitigation and emergency planning information
to the public and partner agencies.
C.7 MITIGATION STRATEGY
C.7.1 Mitigation Goals
OC San adopts the hazard mitigation goals developed by the planning team; refer to Section 4.
C.7.2 Mitigation Actions
The internal development team reviewed the mitigation actions identified in the 2019 plan and the
updated risk assessment to determine if the mitigation actions were completed, required
modification, should be removed because they are no longer relevant, and/or should remain in the
MJHMP update. New mitigation actions to address the updated risk assessment and capabilities
identified above were also considered and added. Exhibit C-13, OC San Mitigation Actions,
identifies the mitigation actions, including the priority, hazard addressed, risk, timeframe, and
potential funding sources.
C-20 OC SAN 25-05-26
Perform a seismic study analysis for all
structures and facilities.
District Wide
P1-137 Support Building Seismic
Improvements at Plant No.1.
Plant No. 1
PS23-06 Seismic Resilience Study at Plant
plant No. 2
No.2.
P1-105: Headworks Rehabilitation at Plant 1:
Refurbish, rehab, and build new structures at
Plant 1 Headworks so that it can operate with
Plant No. 1
no major issues for the next 20 years providing
redundancy and resiliencyto the process area.
P1-126 Primary Sedimentation Basins 3-5
Replacement at Plant No. 1: The replacing
circular clarifiers and odor control systems
Plant No. 1
with new, as well as replacing gravity systems
from headworks to AS-1.
P2-98AA-Side Primary Clarifiers Replacement
at Plant No. 2: The project is replacing circular
Plant No. 2
clarifiers and odor control systems with new
clarifiers.
Identify locations and install sensors/alarms
for harmful contaminants entering the District Wide
treatment system.
Orange County Water & Wastewater Multi -Jurisdictional Hazard Mitigation Plan
2024
Exhibit C-13.00 San Mitigation Actions
Seismic Shaking,
Seismic
Liquefaction, Fault
Rupture
Seismic Shaking,
$1 Million per Engineering
structure
Immediate
(1-2years)
Budget
Ongoing
Seismic
$27.6 Million Engineering
Immediate
Budget
In Progress
Liquefaction, Fault
(1-2years)
Rupture
Seismic Shaking,
Seismic
$964,000 Engineering
Immediate
Budget
In Progress
Liquefaction, Fault
(1-2years)
Rupture
All Hazards $340 Million Engineering Long -Term Budget In Progress
/Operations (>5years)
Contamination/
$183 Million
Engineering
Immediate
Budget
In Progress
Saltwater Intrusion
/Operations
(1 -2 years)
Contamination/
$166 Million
Engineering
Immediate
Budget
In Progress
Saltwater Intrusion
/Operations
(1 -2 years)
Short Term
Contamination/
Unknown
Operations
Budget
Ongoing
Saltwater Intrusion
(3-5 years)
Conduct routine site inspections of structures
and facilities and follow-up on any reported District Wide All Hazards Year 00 per Operations (>5 years) Long -Term Budget Modified
structural deficiencies or mitigation measures.
Year
Follow the Asset Management Plan for Long -Term
replacement and refurbishment of facilities. District Wide All Hazards $200 Million Engineering (>5 years) Budget Ongoing
C-21 OC SAN 25-05-27
PSA2022-001 Coating Inspection Services to
provide ongoing assessments of coatings and
District Wide
make recommendations for repairs.
MP2-004 Digester K Dome Structural Analysis
at Plant No. 2 to perform a structural analysis
Plant No. 2
of Digester K and make recommendations for
repairs.
Protect and reinforce facilities within flood
District Wide. South
plain areas, rivers, and creeks, or relocate
Perimeter Wall and
facilities out of harm's way.
Plant No. 2
Improve security at keyfacilities and install
surveillance equipment. MP1-008 EJB Security
plant 1
Lighting Improvements at Plant 1 to install
motion detection lights at an offsite structure.
Improve security at key facilities and install
surveillance equipment. SCE23-02 EJB Security
Fence Replacement: Upcoming project to
Plant 1
replace chain link fence with 8-foot-tall
wrought iron fence.
_
J-120A Process Control Systems Upgrades:
This project is upgrading the existing
Supervisory Control and Data Acquisition
(SCADA) systems for the treatment plants and
District Wide
pump stations based on vendor system
selected as part of SP-196 study. The project
will replace existing obsolete HMI, databases,
and software programs.
Orange County Water & Wastewater Multi -Jurisdictional Hazard Mitigation Plan
2024
Contamination/
$500,000 per
Operations
p
Long -Term
Budget
Ongoing
Saltwater Intrusion
Year
(>5years)
Seismic Shaking,
Seismic
$500,000
Operations
Long -Term
Budget
Ongoing
Liquefaction, Fault
(>5years)
Rupture
Flood
Unknown
Engineering
Immediate
Budget
In Progress
/Operations
(1-2years)
Human -Caused
Operations
Immediate
Hazards — Terrorism
$100,000
and Security
(1-2 years)
Budget
In Progress
(MCI)
Human -Caused
Operations
Immediate
Hazards —Terrorism
$100,000
and Security
(1-2 years)
Budget
In Progress
(MCI)
Human -Caused
Operations
Immediate
Hazards —Terrorism
$37 Million
/Contractor
(1-2years)
Budget
In Progress
(Cyber Threat)
Yorba Linda Pumping
Station, Bitter Point
Pumping Station,
Standardized and upgrade older lift station
Rocky Point Pumping
electrical and instrumentation systems.
Station, Crystal Cove
All Hazards
Pumping Station,
MacArthur Pumping
Station, and Edinger
Pumping Station
3-67 Seal Beach Pump Station: The project is
replacing the existing pump station with a new
Seal Beach Pumping All Hazards
pump station as well as making modifications
Station
to the existing gravity sewers and force mains.
i
$160 Million Operations
$134 Million Operations
Long -Term Budget
(>5 years)
Immediate
Budget
(1-2 years)
Ongoing
In Progress
C-22 OC SAN 25-05-28
Orange County Water & Wastewater Multi -Jurisdictional Hazard Mitigation Plan
2024
5-67 Bay Bridge Pump Station: The project is
replacing the existing pump station with a new
Bay Bridge Pump
All Hazards $145 Million
Operations
Immediate
Budget
In Progress
pump station as well as making modifications
Station
(1-2 years)
to the existing gravity sewers and force mains.
•
Human Caused
Engineering
Long -Term
Modified
Exterior Lighting Study at Plant Nos. 1 and 2
Plant Nos. 1 and 2
Hazards —Terrorism $345,000
/Operations
(>5years)
Budget
and
J-11713/132-107 Ocean Outfall Booster Pump
Station and Supervisory Upgrades: The project
Human Caused
will construct improvements to implement a
Hazards: Power
power monitoring and control system. The
Outage;
Long -Term
Modified
project is replacing existing fiber network with a
Plant No. 2
$140 Million
Human -Caused
Operations
(>5 years)
Budget
and
series of looped networks and network
Hazards: Terrorism
Ongoing
switches, creating an ICS to be used to improve
(CyberThreat)
reliability and allow automatic load shedding.
The project installs two new server rooms.
C-23 OC SAN 25-05-29
Orange County Water & Wastewater Multi -Jurisdictional Hazard Mitigation Plan
2024
C.7.3 Completed or Removed Mitigation Initiatives
The following mitigation actions from the 2019 plan have been completed or are in progress and
therefore are removed from this plan update.
Mitigation: Wastehauler Station Safety & Security Improvements
— Status: Completed 2024. The project installed access control systems at our wastehau ter
station to prohibit illegal dumping.
• Mitigation: Follow the Asset Management Plan for replacement and refurbishment of facilities.
— Status: Complete 2023. Updates to OC San's Asset Management Plan were made and
approved by the Board of Directors in 2023. OC San knows the condition of assets owned
and has a plan to operate and maintain the assets to deliver the required level of service, at
the lowest life cycle cost, with an acceptable level of risk.
• Mitigation: South Perimeter Security and Utility Improvements at Plant No. 1
— Status: Completed 2023. Project replaced the perimeter chain linkfence at Plant No. 1
along Ward Street from Garfield Avenue to Falcon Avenue with a security wall with an 8-feet
tall split -face concrete masonry unit (CMU) wall with landscaping inside and outside the
CMU wall. A permanent Guardhouse at Garfield Avenue Gate, interior perimeter lighting,
video surveillance, and electronic security systems along Ward Avenue and Garfield
Avenue were installed.
Mitigation: Pump Station Portable Generator Connectors
— Status: Completed. The project installed connectors at the pump stations for backup
power supply connections.
• Mitigation: Seismic Evaluation of Structures at Plant 1 and 2
— Status: Complete 2020. Evaluated seismic resiliency of structures at Plants 1 and 2 that
were constructed prior to the 2001 California Building Code. Quantified the seismic
vulnerability of these structures. Developed mitigation measures and costs that would
address vulnerabilities and improve reliability. Prioritized seismic projects (ranked list of
structures) and made recommendations.
• Mitigation: 2-41 Santa Ana Regional Interceptor (SARI) Realignment
— Status: Completed in 2019. A 4-mile vulnerable segment of the SARI line between the
Green River Golf course and Savi Ranch that was in the flood plain of the Sanat Ana River
was relocated in 2015, outside of the flood plain and protected with launched rip rap
against major flood events and lateral erosion from high releases from the U.S. Army Corps
of Engineers' Prado Dam. The SARI pipeline crossings have been lowered within encased
siphons to withstand major riverbed degradation. Overall, this segment of the SARI line is
protected and does not need additional relocation or protection.
• Mitigation: Install joint less pipelines in all creek crossings and slope easements.
— Status: Removed, deemed cost prohibitive.
C-24 OC SAN 25-05-30
Orange County Water & Wastewater Multi -Jurisdictional Hazard Mitigation Plan
2024
• Mitigation: Strictly enforce standard separation between water and wastewater infrastructure.
— Status: Removed, not applicable.
• Mitigation: Survey and improve site fencing and other forms of hardening deterrence to
facilities including the use of camera and wireless communications.
— Status: Removed, repeat mitigation action.
• Mitigation: Examine opportunities for online water quality sensing relative to potential human
induced contamination and implement if feasible.
— Status: Removed, deemed not applicable.
C.8 PLAN INTEGRATION
OC San's capital budget, Wastewater Master Plan, and the Integrated Emergency Response Plan
are all used to implement mitigation initiatives identified in this annex. After adoption of the
MJHMP, OC San will continue to integrate mitigation priorities into these documents.
Since the previous Plan Update, OCWD incorporated information from the MJHMP in its CIP, in
addition to the following planning mechanisms:
• Incorporation of mitigation initiatives into the Water Master Plan.
The risk assessment information was used to update the hazard analysis in OC San's Emergency
Response Plan.
OC San will continuously monitor the progress of mitigation actions implemented through these
other planning mechanisms and, where appropriate, their priority actions will be incorporated into
updates of this Plan.
C-25 OC SAN 25-05-31
April 14, 2025
Vicki Osborn
Director of Emergency Management
Municipal Water District of Orange County
18700 Ward Street
Fountain Valley, CA 92708
Dear Vicki Osborn:
The Federal Emergency Management Agency (FEMA) has completed its review of the
2025 Municipal Water & Wastewater District of Orange County Hazard Mitigation Plan and has
determined that this plan is eligible for final approval, pending its formal adoption by the
Municipal Water & Wastewater District of Orange County and all participating jurisdictions.
Please refer to the enclosed list of jurisdictions currently considered Approvable Pending
Adoption (APA).
Formal adoption documentation must be submitted to FEMA Region 9 by at least one
participating jurisdiction within one calendar year from the date of this letter. If no adoption is
received within that timeframe, the plan must be updated and resubmitted for review.
FEMA will issue formal approval of the plan upon receipt of the adoption documentation. Once
approved, all other participating jurisdictions must adopt the plan within five calendar years of
the approval date. Adoption of the plan is required to maintain eligibility for funding under
FEMA's Hazard Mitigation Assistance (HMA) programs. All funding requests will be evaluated
individually based on the specific eligibility criteria and requirements of the applicable HMA
program.
Please note that while mitigation plans may include additional content to meet Element H:
Additional State Requirements or other local objectives, FEMA's APA status does not constitute
review or approval of any content exceeding FEMA's standard mitigation planning
requirements.
OC SAN 25-05-32
If you have any questions regarding the planning or review processes, please contact the FEMA
Region 9 Hazard Mitigation Planning Team at fema-r9-mitigationati�on-planning&fema.dhs.gov.
Sincerely,
Alison Kearns
Planning and Implementation Branch Chief
Mitigation Division
FEMA Region 9
Enclosures (2)
Municipal Water & Wastewater District of Orange County Plan Review Tool, dated
April 14, 2025
Status of Participating Jurisdictions, dated April 14, 2025
cc: Robyn Fennig, State Hazard Mitigation Officer, California Governor's Office of
Emergency Services
Victoria LaMar -Haas, Hazard Mitigation Planning Chief, California Governor's Office of
Emergency Services
OC SAN 25-05-33
Status of Participating Jurisdictions as of April 14, 2025
jurisaictions — Aao tea ana Approvea
#
Jurisdiction
Ado tion Receipt Date
Jurisdictions — Approvable Pending Adoption
#
Jurisdiction
1
Municipal Water & Wastewater District of Orange Count
2
Costa Mesa Sanitary District
3
El Toro Water District
4
Irvine Ranch Water District
5
Laguna Beach County Water District
6
Mesa Water District
7
Moulton Niguel Water District
8
Orange County Sanitation District
9
Orange County Water District
10
Santa Margarita Water District
I I
Serrano Water District
12
South Coast Water District
13
South Orange County Wastewater Authority
14
Trabuco Canyon Water District
15
Yorba Linda Water District
OC SAN 25-05-34
Resolution No. OC SAN 25-05
Final Audit Report 2025-07-25
Created: 2025-07-24
By: Kelly Lore (klore@ocsan.gov)
Status: Signed
Transaction ID: CBJCHBCAABAAtbmRUOs_LWOYWswVOv797kHNX1 HxZ3zq
"Resolution No. OC SAN 25-05" History
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