HomeMy WebLinkAboutAPPX-F_V8-FPP_02-00-12Fire Protection Plan
Appendix F
FIRE PROTECTION PLAN
FOR
OTAY RANCH, VILLAGE 8 WEST
PREPARED FOR:
City of Chula Vista
Development Services Department
276 Fourth Ave
Chula Vista, CA 91910
&
Otay Land Company, LLC
1903 Wright Place, Suite 220
Carlsbad, CA 92008
PREPARED BY:
Robin Church
RC Biological Consulting, Inc.
12737 Campo Road
Spring Valley, CA 91978
(619) 463-1072
February 2012
TABLE OF CONTENTS
SECTION PAGE
1.0 INTRODUCTION 1
1.1 Purpose of the Fire Protection Plan
1.2 Project Location 1
1.3 Land Uses 1
1.4 Open Space 4
2.0 ACCESS 4
3.0 ADDRESSES 5
4.0 WATER SUPPLY 5
4.1 Fire Sprinklers 6
4.2 Fire Monitoring Systems 6
5.0 FIRE SERVICES 6
6.0 SETTING AND FIRE HISTORY 6
6.1 Surrounding Land Use and Topography 6
6.2 Vegetation 10
6.3 Climate 12
6.4 Fire History 12
7.0 RISK ASSESSMENT – WILDLAND FIRE 16
7.1 Fuel Modeling 16
8.0 FIRE-RESISTIVE CONSTRUCTION 18
9.0 FUEL MANAGEMENT 19
9.1 Fire Protection Planning Area A 19
9.2 Fire Protection Planning Area B 22
9.3 Fire Protection Planning Area C 22
9.4 Offsite Fuel Management 22
9.5 Maintenance 22
9.6 Fuel Management During Construction/Phase Implementation 23
9.7 Fuel Management for Parks and Community Open Space 23
9.8 Emergency Brush Management 24
10.0 GUIDELINES FOR PLANTING IN FUEL MODIFICATION ZONES 24
11.0 REFERENCES 26
TABLE OF CONTENTS (CON’T)
LIST OF TABLES
Table 1 Burn History of the Site and Vicinity 15
Table 2 Weather Inputs for the Coastal Zone 15
Table 3 Habitats and Fuel Models 16
Table 4 Fire Modeling Results for Santa Ana Conditions 17
Table 5 Fire Modeling Results for Peak Conditions 17
Table 6 Fire Modeling Results for Normal (Summer) Conditions 18
LIST OF FIGURES
Figure 1 Tentative Map Map Pocket
Figure 2 Vicinity Map 2
Figure 3 Aerial Map 3
Figure 4 Coverage Area 7
Figure 5 Fire Hazard Map 8
Figure 6 Contour Map 9
Figure 7 Biological Resources Map 11
Figure 8 Climate Map 13
Figure 9 Burn History 14
Figure 10 Fuel Management Zone Map Pocket
LIST OF GROUND PHOTOGRAPHS
Photograph 1. Coastal Sage Scrub in Proposed Open Space 10
Photograph 2. Dry Farmed Land 12
LIST OF APPENDICES
Appendix A Weather Conditions For Fuel Modeling
Appendix B Fuel Modeling Water Service Availability Letter
Appendix C Fuel Parameters
Appendix D Chapter 7A of the State Building Code
Appendix E Plant Palettes
Appendix F City of Chula Vista MSCP Subarea Plan (2002), Appendix N, List of
Invasive Species City of Chula Vista Final MSCP Subarea Plan
(2002), Appendix K, List of Undesirable Plants included with the “San
Diego County Fire Chief’s Association Fuel Modification Zone Plant
List (2008)”
Village 8 West 1 Fire Protection Plan
February 2012
1.0 INTRODUCTION
Village 8 West has historically been referred to as Otay Land Company’s Parcel B. The site
includes portions of Otay Ranch Villages 4, 7, and 8. The Village encompasses
approximately 320 acres and is located in the southwest quadrant of Otay Ranch. The
Village is proposed to be composed of mixed-use dwelling units, multi-family dwelling
units, single-family residential, retail/commercial, schools, parks, a community purpose
facility, and open space (Figure 1-Tentative Map, Map Pocket). The project is proposed to
be built in several phases. Fire protection is provided to the project area by the City of
Chula Vista Fire Department. The project will incorporate several of the Firewise
Community Design features. Details of the Firewise Community design features can be
found on the Firewise website at Firewise.org/USA.
1.1 Purpose of the Fire Protection Plan
The purpose of this Fire Protection Plan (FPP) is to address fire safety and compliance with
applicable codes, ordinances, and regulations for Village 8 West. The primary focus of this
plan is the southern perimeter of the site, which contains native vegetation that is being
placed in open space. Additionally, this vegetation is contiguous with native vegetation
offsite to the south. Based on this proximity to the Urban Wildland Interface (UWI)
and fire modeling that reflects up to a 1.4 mile distance for spot fires, all residential
structures within Village 8 West shall require fire resistive construction. The plan
references current codes and regulations at the time it is being written. However, the codes
and regulations in place (i.e. adopted) at the time of development shall apply.
1.2 Project Location
The Village 8 West project, hereinafter referred to as the proposed project, is located in the
City of Chula Vista. The project is located at the southern terminus of La Media Road
(Figure 2). Portions of Village 7 lie to the north, the balance of Village 8 to the east, the
Otay River Valley and a portion of the MSCP Preserve to the south, and Village 4 and an
additional portion of MSCP Preserve to the west. The project is located in an area of
existing development, proposed development, agriculture, and undeveloped lands (Figure
3).
1.3 Land Uses
The development plan for Village 8 West calls for the implementation of 1429 mixed-use
(MU) and multi-family (MF) dwelling units, 621 single family dwelling units, 300,000
square feet of retail/commercial uses, two potential school sites, four park sites, a
community-purpose facility (CPF) site, and open space and utility and roadway
easements/rights of way (Figure 1). The estimated 24-hour population of Village 8 West is
5735 persons.
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Village 8 West 4 Fire Protection Plan
February 2012
1.4 Open Space
There is an open space lot proposed in the southwestern corner of the project (Figure 1).
The open space is required as a result of that portion of the project, approximately 23 acres,
being located within an area designated as 100 % Conservation Area – Habitat Preserve
(Preserve) within the City’s Multiple Species Conservation Program (MSCP) Subarea Plan.
No development or fuel modification will occur within this lot other than an underground
storm drain and an access road.
2.0 ACCESS
Future road access to Village 8 West will be provided by existing La Media Road from the
north, future Main Street from the east and west, future Otay Valley Road from the
southeast, and existing Magdalena Road in the northeast corner of the project site.
La Media Road, the primary access road, is proposed both as a couplet road in the northern
portions of the project and a divided road in the southern (Figure 1). Both the one-way
couplet portions and the divided road portion provide two eleven-foot wide travel lanes in
each direction. Main Street is also proposed as a couplet road built with the same travel lane
dimensions.
Proposed Streets A and B, which provide circulation for both the higher density residential
development and the retail/commercial development, both propose a travel lane width of
eleven feet in each direction. The typical Parkway Residential is proposed to have two ten-
foot wide travel lanes in each direction.
The project shall comply with the City of Chula Vista Construction Site Policy for
Compliance with Fire Safety Provisions. The project phasing and road construction shall be
such that required numbers of access points are provided in conformance with the City of
Chula Vista Subdivision Manual Section 3-403.2 (7) (2002). Specific requirements under
this Section are:
• For a street ending in a cul-de-sac, the maximum is 30 single-family lots
• Single-family development shall not exceed 120 lots unless two points of access are
provided
• Single-family development shall not exceed 200 lots unless three points of access
are provided
• “Points of access” means streets with no driveway access consisting of two or more
lanes. Emergency access-only connections are not considered points of access.
These requirements do not apply to condominium or multi-family development.
Firefighter foot access points along the Urban-Wildland Interface (UWI) for this project
will be available at the following locations, which are at approximately 1000 foot intervals.
Village 8 West 5 Fire Protection Plan
February 2012
These access points are depicted on Figure 10. If fences are proposed in these areas then
gates will be provided.
3.0 ADDRESSES
All buildings are required to be separately addressed. Unit numbers shall be placed at
appropriate locations and be plainly visible and legible from the street fronting the property
from either direction of approach. The numbers shall contrast with their background and
shall meet the following minimum size standards: 4" high with a ⅜" stroke for residential
buildings, 6" high with a ½" stroke for commercial and multi-residential buildings and 12"
high with a 1" stroke for industrial buildings. Address numbers shall be automatically
illuminated after dark by low voltage lighting. Additional numbers shall be required where
deemed necessary by the fire code official, such as rear access doors, building corners and
entrances to commercial centers. The fire code official may establish different minimum
sizes for numbers for various categories of projects. In addition, geographical directories
will be required at entrances to multiple building developments on a parcel. The City of
Chula Vista has prepared Premise Identification Guidelines for reference.
The following table identifies the requirements for commercial development.
Distance from Building to Face of CurbMinimum Number HeightMinimum Stroke
0-50 feet 6 inches 1 inch
51-150 feet 10 inches 1.5 inches
¾ 150 feet 16 inches 2 inches
4.0 WATER SUPPLY
The Otay Water District (OWD) will provide potable water services. The City of Chula
Vista utilizes the California Fire Code for determining required fire flows and durations for
new development. The fire code utilizes a number of factors to determine the required fire
flow for a building. These factors include building footprint, building construction
materials, and whether or not the building has sprinklers. Since this level of detail is not
known at the planning stage, this report uses the fire flow requirements utilized by the Otay
Water District in master planning storage, transmission, and distribution facilities
throughout their District. The fire flow requirement will be a minimum of 1,500 gpm and
may be increased for individual sites based on the factors described above.
Hydrants shall be placed along road ways and fire access paths a maximum of 300 feet
apart in multi-family and commercial areas. Hydrant spacing shall be placed along
roadways a maximum of 500 feet in single-family residential areas (Ordinance 3093 §1,
2007). Spacing maybe increased to a minimum of 1000 feet where no structures are
proposed adjacent to the road. The Chula Vista Fire Department shall review proposed fire
hydrant layout throughout this project and provide an overall approval.
Village 8 West 6 Fire Protection Plan
February 2012
4.1 Fire Sprinklers
Fire sprinklers will be installed in conformance with Section 903 of the California Fire
Code. All single family residences and duplexes will be required to have fire sprinklers in
conformance with the California Residential Code (CRC).
4.2 Fire Monitoring Systems
Fire monitoring systems shall be installed in conformance with Section 907 of the
California Fire Code (2007).
5.0 FIRE SERVICES
The City of Chula Vista is in the process of updating their Fire Master Plan. If the Master
Plan determines that a fire station is required in Village 8 West then the project may be
required to designate an area for a future fire station.
The nearest fire station is Station 7, located at 1640 Santa Venetia Road, within Village 2.
Station 7 has 24 assigned staff with eight on duty at any given time, including the Battalion
Chief. The station is equipped with one engine and one ladder truck. Another station is
proposed within the East Urban Center. The anticipated date for completion of this station
is unknown at this time (See Eastern Urban Center Trigger Analysis).
The City of Chula Vista Growth Management Ordinance states properly equipped and
staffed fire and medical units shall respond to calls throughout the city within seven
minutes in 80 percent of the cases (City Municipal Code Section 19.09.040). The City of
Chula Vista provided an analysis (Figure 4) showing that all areas of Village 8 West are
located within 2.5 miles of Fire Station 7. The City determined that 2.5 miles can be
traveled with the required response time within the Growth Management Ordinance.
6.0 SETTING AND FIRE HISTORY
The California Department of Forestry and Fire Protection has developed recommended
maps of “Very High Fire Hazard Zones” for local responsibility areas. The City of Chula
Vista has adopted the map (Ordinance 3113§ 1, 2008). The project is not located in an area
identified as a “Very High Fire Hazard Zone,” as recommended by the California
Department of Forestry and Fire Protection (Figure 5). The following sections discuss the
surrounding land use, topography, vegetation, climate, and fire history.
6.1 Surrounding Land Use and Topography
The project site is primarily surrounded by undeveloped lands, primarily dry farming and
an area of development along the northeastern boundary (Figure 3). Rock Mountain is west
of the project site near the southern border and Otay River is to the south (Figure 6). The
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OFigure 5Fire Hazard MapOtay Ranch Village 8 West
Source: http://frap.cdf.ca.gov/
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Parcel Boundary
Wind Direction
Rivers
Village 8 West 10 Fire Protection Plan
February 2012
proposed development area spans the project site, with a limited amount of open space in
the southwestern corner. The site is gently sloping to the south, with steeper slopes in the
southwestern portion of the project. The elevations onsite range from approximately 300
feet above mean sea level (AMSL) to 600 feet AMSL.
6.2 Vegetation
Plant communities on and off-site were mapped by URS and included as Figure 7. Two
plant communities within the on-site open space and adjacent to the project site were
considered for fuel load: Diegan coastal sage scrub and non-native grassland. The coastal
sage scrub would also represent the maritime succulent scrub, a limited amount of which
occurs adjacent to the project site on the west. The fuel loading for non-native grassland is
considered a conservative representative of the agriculture and disturbed habitats adjacent
to the site. Developed land also occurs adjacent to the project site. The proposed open space
is composed primarily of coastal sage scrub and some non-native grassland within the
southwestern portion of the project site and offsite to the south. Photograph 1 illustrates the
coastal sage scrub habitat proposed to be preserved within the on-site open space.
Photograph 2 represents the dry farmed areas on and adjacent to the site.
Photograph 1. Coastal Sage Scrub within Proposed Open Space in the southwest corner
Not a Part
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LEGEND
SOURCES: SANGIS (Parcels, Roads 2010)
URS (field survey, 2008)
AERIALS EXPRESS, (Jan 2009)
VEGETATION
VILLAGE 8 WEST
OTAY LAND CO
CREATED BY PM
PM: PMPROJ. NO: 27654036.05000
DATE: 10-14-10 FIG. NO:
3SCALE: 1" = 500' (1:6,000)
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SCALE CORRECT WHEN PRINTED AT 11X17
Village 8 West
Not a Part
Chula Vista MSCP 100% Preserve Area
Vegetation
18300 - Extensive Agriculture
32500 - Coastal Sage Scrub
32500 - Disturbed Coastal Sage Scrub
52400 - Freshwater Marsh
32400 - Maritime Succulent Scrub
63110 - Mulefat Scrub
42000 - Non Native Grassland
42200 - Disturbed Non Native Grassland
12000 - Developed
11300 - Disturbed Habitat
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Village 8 West 12 Fire Protection Plan
February 2012
Photograph 2. Dry Farmed Land along the eastern boundary
6.3 Climate
As defined by the National Weather Service, San Diego has four climate zones: coastal,
inland, mountain, and desert climate. These climate zones are determined by several
factors: proximity to the ocean, terrain, elevation, and latitude. Using the Koppen system,
the metropolitan areas of Southern California have a Mediterranean climate, characterized
by mild, sometimes wet winters and warm, very dry summers. The Mediterranean climate
includes all coastal areas, valleys and foothills. Annual precipitation amounts increase
gradually from the coast to the mountain crests, then drop dramatically into the deserts.
Most precipitation comes from winter storms between November and March. The site is
located within the coastal climate zone (Figure 8). Average rainfall is 11 inches per year
(Western Regional Climate Center).
6.4 Fire History
The fire history of the site and surrounding area (approximately 2.5 mile diameter) was
reviewed (Figure 9). The source of the fire history information is the California Department
of Forestry’s Fire and Resource Assessment Data from 2007. No fires have been
documented on the site. The Mine/Otay fire of 2003, which started the day after the Cedar
fire, burned to within approximately 2 miles of the eastern property line. Two fires have
burned within the 2.5 miles surrounding area between 1910 and 2003 (Table 1). For those
fires within the figure itself with known dates of origin the majority of them occurred
during the summer and fall months of June through November.
Boundary
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CLIMATEType
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OFigure 8Climate Map
Source: SanGIS
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Figure 9Burn History
Parcel_B_Boundary
Burn HistoryYEAR
1910
1945
1969
1971
1979
1980
1982
1994
1996
2003
Village 8 West 15 Fire Protection Plan
February 2012
Table 1. Burn History of the Site and Vicinity
Name Year Month Day Acres Cause Agency
None 1979 UnknownUnknown211 Miscellaneous USF
Otay # 4 1994 10 10 2983 Campfire CDF
7.0 RISK ASSESSMENT – WILDLAND FIRE
The area does not have a significant history of burning from wildland fires as discussed in
Section 6.4 – Fire History. The site is proposed to be developed in two phases. The
remaining on-site vegetation threat would primarily be a small amount of coastal sage scrub
that is proposed to be preserved within open space. Coastal sage scrub occurs offsite to the
west and to the south of the project site. Dry farmed lands or grasslands primarily occur to
the east of the project. Fire modeling indicates a spotting distance of 1.4 miles which
encompasses the entire project.
7.1 Fuel Modeling
Fire modeling was performed using Behave Plus 4.0 for two types of weather conditions: a
Santa Ana conditions (Fall), including gusts, and a normal weather conditions (Summer).
RAWS (Remote Automated Weather Station) data was not available. Weather data are
from the Western Regional Climate Center (WRCC) Brown’s Field, which is
approximately two miles to the south. Weather data are included in Appendix A.
The results of the modeling are summarized here and included in Appendix B. The adjacent
topography is varied. The offsite threat is primarily from dry farmed land on the north and
east. A conservative slope of 20% and GR4 were used to model this habitat. Southern
California fuel model SCAL 18 (sage/buckwheat) was used to represent the coastal sage
scrub to the west of the site and within the open space on the south of the property on and
off-site. The coastal sage scrub onsite is associated with a slope of 16%. A conservative
slope of 20% was used to model this habitat. Table 2, identifies the weather inputs for each
of the conditions: Santa Ana, peak and summer.
Table 2. Weather Inputs for the Coastal Zone
Period Temperature
(Fahrenheit)
Relative
Humidity
Sustained Wind
Speed (mph)
Peak (Gusts) 90° 0-4% 32
Santa Ana 90° 0-4% 25
Summer 90° 10-14% 5
Modeling was performed for coastal sage scrub and agricultural lands found within and
adjacent to the proposed development. Table 3 identifies the habitats and fuel models used
to represent the habitat.
Village 8 West 16 Fire Protection Plan
February 2012
Table 3. Habitats and Fuel Models
Habitat Fuel
Model
Description*
Dry Climate
Grasslands
GR4 The primary carrier of fire in this model is continuous, dry-
climate grasses. The typical depth is two feet. This is a
conservative model of for non-native grassland to the east.
This model allows that the grasslands may not always be
mown.
Coastal Sage
Scrub
SCAL18 This fuel model has been developed for a common southern
California habitat, coastal sage scrub.
* The complete model parameters are included as Appendix C.
The full results of the modeling are included in Appendix B and summarized below for
each weather period.
7.1.1 Santa Ana Condition
A Santa Ana weather condition is potentially the worst weather for fire. Santa Ana’s
typically occur from September to May. The fall Santa Ana can create extremely dangerous
fire conditions because they are associated with high temperatures, high winds coming from
the north/northeast and low humidity. They also occur after long periods of no rain, when
the vegetation is in a drought-stress condition. The soft shrubs that compose habitats such
as coastal sage scrub are semi-drought deciduous and have typically lost the majority of
their foliage by the end of summer.
Fire Behavior
Santa Ana winds result in a wind-driven fire. These winds typically come from the
northeast. Santa Ana winds are Foehn winds, which are warm, dry winds that result from
air spilling over high elevations and moving downhill. These are gravity winds that
typically follow the ground. When gravity winds hit an obstacle they can either split around
the obstacle and continue, or follow the object to the top, launch over the top, and result in
an area behind the obstacle with normal wind conditions.
The site is generally the southern facing slope of an east/west trending valley containing the
Otay River. A Santa Ana wind would drive the fire to the west along the river valley with
topography leading it up the slopes to the project site. There is a large area of undeveloped
land within the river valley that would result in a potential fire being able to move north
toward the site.
Fire Modeling
Modeling was performed using the Santa Ana weather conditions identified in Table 2 and
the fuel model identified in Table 3.
Village 8 West 17 Fire Protection Plan
February 2012
Table 4. Results for a Santa Ana Fire
Coastal Sage
Scrub
Grassland/
Agriculture
Flame Length 28’ 19’
Rate of Spread1 105 ch/h 358 ch/h
Spotting Distance2 1.1 mi 0.8 mi
Probability of Ignition3 89% 89%
7.1.2 Peak Conditions
Peak conditions are the extreme conditions during a Santa Ana event. The peak winds
represent the gusts that occur during a Santa Ana.
Fire Behavior
The fire behavior would be essentially the same as during a Santa Ana; however, the gusts
could significantly increase the rate of spread and the distance that fire brands travel during
the time that they are occurring.
Fire Modeling
Modeling was performed using the peak weather conditions identified in Table 2 and the
fuel model identified in Table 3.
Table 5. Results for a Peak Conditions
Coastal Sage
Scrub
Grassland/
Agriculture
Flame Length 31’ 22’
Rate of Spread 131 ch/h 507 ch/h
Spotting Distance 1.4 mi 1.1
Probability of Ignition 89% 89%
1 Surface rate of spread is the "speed" the fire travels through the surface fuels. Surface fuels include the litter,
grass, brush and other dead and live vegetation within about 6 feet of the ground. (BehavePlus 4.0) 2 Spotting distance from a wind-driven surface fire is the maximum distance that one can expect potential spot
fires based on firebrands from a spreading wind-driven surface fire. The model is applicable only if the fire is
truly wind-driven through surface fuels that are not sheltered from the wind by overstory. (BehavePlus 4.0) 3 Probability of ignition from a firebrand is an indication of the chance that a firebrand will cause an ignition.
The number of firebrands, their size, and the fuel on which they land is generally unknown. Therefore, there is
no specific interpretation of the probability of ignition of a fire.(BehavePlus 4.0)
Village 8 West 18 Fire Protection Plan
February 2012
7.1.3 Normal Weather Condition
Normal weather conditions consist of an onshore flow from the southwest. This condition
has a lower temperature and higher humidity than a Santa Ana condition.
Fire Behavior
A fire under normal conditions is typically a fuel-driven fire; however, wind will also
contribute to the rate of spread. A fire that started offsite to the south would also be
influenced by topography, with the project being at higher elevations than the undeveloped
land offsite.
Fuel Modeling
Modeling was performed using the summer weather conditions identified in Table 2 and the
fuel model identified in Table 3.
Table 6. Results for Summer Conditions
Coastal Sage
Scrub
Grassland/
Agriculture
Flame Length 15’ 7’
Rate of Spread 27 ch/h 44 ch/h
Spotting Distance 0.2 mi 0.1 mi
Probability of Ignition 89% 89%
Based on the modeling, the greatest anticipated flame length is from the coastal sage scrub
burning during a Peak Santa Ana fire. The resulting flame length is 31 feet. The remaining
flame lengths are less than 31 feet.
The model is an estimate of the flame lengths that can be anticipated. Actual fire behavior
can be more or less intensive.
8.0 FIRE RESISTIVE CONSTRUCTION
As a result of the project being located within the UWI, and all of the residential structures
being located within the potential spotting distance of 1.4 miles, all residential structures
shall implement fire resistive construction. Construction methods shall follow Chapter 7A
of the California Building Code, “Materials and Construction Methods for Exterior Wildfire
Exposure”
(http://www.fire.ca.gov/fire_prevention/downloads/ICC_2009_Ch7A_2007_rev_1Jan09_S
upplement.pdf) or more stringent building code requirements if adopted by the City of
Chula Vista. No dwelling unit shall be constructed within the Brush Management Zone. If
the Brush Management Zone extends into any private lot, a “Structure Restriction
Easement” will be placed on that portion of the lot to the satisfaction of the Fire Marshal.
Village 8 West 19 Fire Protection Plan
February 2012
9.0 FUEL MANAGEMENT AND FIRE PROTECTION PLANNING AREAS
As this project is a unique combination of risks and mixed use, Village 8 West has been
divided into three Fire Protection Planning Areas (FPPA) to differentiate the proposed fuel
management procedures. The majority of the project consists of graded, relatively flat
developed areas with hardscape or ornamental landscaping. These areas present more of an
urban fire risk than an Urban Wildland Interface (UWI) risk. The area adjacent to the
Multiple Species Conservation Program (MSCP) Subarea Conservation Area – Habitat
Preserve (Preserve) to the south is the primary fuel threat. This area will be described as
FPPA A.
FPPA B is composed of the remainder of the perimeter slopes adjacent to the residential
areas that have steep manufactured slopes of 2:1 and an elevation change of 10 feet or
greater. FPPA B is not adjacent to the MSCP.
FPPA C is composed of the remainder of the interior slopes that have steep manufactured
slopes of 2:1 and an elevation change of 10 feet or greater.
The purpose of the fuel management zone (FMZ) is to provide the necessary defensible
space for fire suppression and to reduce the radiant heat and convective heat that would
result from a fire. Overall onsite fuel management shall be funded through the Community
Facilities District (CFD) and/or Landscape Maintenance District and administered by the
City of Chula Vista. This will ensure long-term maintenance of these areas. Private
landowners are prohibited from conducting any fuel/brush management activities outside of
their private property. No non-fire resistive construction is permitted by the homeowners, or
developer, or their agents, within the Fuel Management Zones without written authorization
from the Chula Vista Fire Department. No brush management shall occur within the MSCP
Preserve.
9.1 Fire Protection Planning Area A (FPPA A)
The project will provide a minimum of 150 feet of fuel management adjacent to the
Preserve, as required by the City of Chula Vista Final MSCP Subarea Plan, Section 7.4.7.1,
Brush Management in the Otay Ranch PMA (2003). Property adjacent to the Multiple
Species Conservation Program (MSCP) Subarea Conservation Area – Habitat Preserve
(Preserve) will have 150 feet of fuel management divided into three 50 foot wide zones.
Zone 1 is adjacent to the structures and 50 feet in width. Zone 1 may contain some area in
the backyards of areas V and P. No structures (as defined in this document) shall be built
within Zone 1. A structure restriction easement shall be placed on the portion of the lots
that encroach into Zone 1.
Where Zone 1 extends into the privately owned Homeowner’s lots, Zone 1 will extend
outside of the lot for a minimum of 50 feet. This will allow for the Zone 1 maintenance
standards to be applied directly outside of the Homeowner’s lot. In addition, Zone 2 will
extend from a distance of 50 feet to 100 feet outside of the Homeowner’s Lot. Zone 3 is
adjacent to the MSCP (Figure 10). Trees, shrubs and ground covers within FPPA A shall
Village 8 West 20 Fire Protection Plan
February 2012
comply with the County of San Diego Plant List for a Defensible Space (2008) outlined in
Appendix D. In addition, no plants shall be allowed from Appendix E which includes:
• City of Chula Vista Final MSCP Subarea Plan (2002), Appendix N, List of Invasive
Species
• City of Chula Vista Final MSCP Subarea Plan (2002), Appendix K, List of
Undesirable Plants included with the “San Diego County Fire Chief’s Association
Fuel Modification Zone Plant List (2008)”
9.1.1 Zones
Zone 1
Zone 1 is the area closest to the structure and is a minimum of 50 feet in width. For the
purposes of fuel management, the term “structure” is defined as: “any building greater than
144 square feet in size or less than 30 feet from the building.”
• Decks, sheds, gazebos, freestanding open-sided shade covers, and similar accessory
structures less than 144 square feet and 30 feet or more from a dwelling, and fences
more than 5 feet from a dwelling, are not considered structures for the establishment
of a fuel modification zone.
• Zone 1 will be composed of landscaped low-fuel native plants and/or hardscape.
Plants must be low growing (less than 18 inches), including groundcover and vines.
Exceptions to this maximum height limitation are:
o Trees are allowed provided:
No tree canopies are lower than 13’ 6” over roadways.
No trees or limbs are permitted within 10 feet of a structure.
Trees must be spaced 20’ apart between mature canopies, 40’ if on
slopes equal to or greater than 2:1. These distances are measured on a
horizontal plane and not along the slope.
No flammable manufactured items are permitted.
Trees must be limbed up to three times the height of the understory for
mature trees, or ten feet, whichever is greater.
No trees within 45 feet of the top or toe of slopes that may occur within
Zone 1 or 2.
• Fuel management within this zone shall consist of landscape plantings that are
maintained to not create fire hazards near structures.
Village 8 West 22 Fire Protection Plan
February 2012
9.2 Fire Protection Planning Area B (FPPA B)
This area is shown on Figure 10. FPPA B will consist of two zones. Zone 1 will be adjacent
to the development and will be 50 feet in width. Zone two will be adjacent to the native
vegetation and will be a minimum of 50 feet in width. Zones 1 and 2 have the same
requirements as to Zones 1 and 2 of FPPA area A, however FPPA area B will include the
plant palette as outlined in Appendix E. FPPA B will follow the installation, spacing, and
maintenance requirements for FPPA A Zones 1 and 2 unless otherwise specified by the City
of Chula Vista Fire Marshal.
9.3 Fire Protection Planning Area C
Fire Protection Planning Area C is composed of the steep manufactured interior slopes that
have slopes of 2:1 or greater and an elevation change of 10 feet or greater. This zone varies
in width. Types and spacing of plants, trees and shrubs are outlined on the Landscape
Master Plan. These areas may include privately maintained slopes or slopes maintained by
the CFD.
9.4 Offsite Fuel Management
An offsite easement for fuel management will be required for 100 feet adjacent to
Neighborhood P (Lots 48-50) and Neighborhood V (lots 18-35). The offsite easement will
be located within FPPA area B. Requirements are discussed in Section 9.2. This easement
may be vacated or reduced at the discretion of the Chula Vista Fire Department and
Development Services Department, City of Chula Vista, based on subsequent development.
• Fuel management within this area shall consist of landscape plantings that are
maintained to not create fire hazards near structures. All of the plants in this zone
must be listed in the “San Diego County Fire Chief’s Association Fuel Modification
Zone Plant List (2008) (Appendix D).
• Other plant species may be used upon the approval of the Fire Marshal and
Assistant City Manager/Development Services.
9.5 Maintenance For All Fire Protection Planning Areas
All zones shall be maintained in the accordance with Sections 9.1, 9.2 and 9.3.
Zone 1
• Conduct annual, or more frequent if necessary, maintenance to reduce fuel
volumes, remove dead and detached material, and maintain in healthy succulent
condition. Some private landowners have fuel management Zone 1 occurring on
their property and are responsible for maintenance of this area within their lot
lines. The covenants, conditions and restrictions (CC&Rs) for the parcels with
Zone 1 on their property shall reflect free and full access for City of Chula Vista
Fire Department and Public Works Department to monitor and enforce brush
Village 8 West 23 Fire Protection Plan
February 2012
abatement as well as the requirements for the Limited Building Zone. Gates shall
not prevent the access of these personnel to conduct these inspections. Fuel
management within the individual boundaries of these lots is the responsibility of
the lot owner. During initial implementation and before these lots are sold the
lots will be maintained by the developer.
• Maintain irrigation in a working condition (if applicable);
• Mature trees greater than 18’ shall be limbed up to a minimum of 6’ above the
ground or 3 times the height of the groundcover, whichever is greater;
• No tree limbs within 10’ of chimneys or dead limbs overhanging structures;
• Trees adjacent to or overhanging roadways, driveways, or other emergency access
paths shall be maintained with a minimum height clearance of 13’ 6”.
Zone 2 and 3
• Conduct annual, or more frequent if necessary, maintenance to reduce fuel volumes,
remove dead and detached material, and maintain in healthy succulent condition;
• Conduct annual removal of plants on the invasive plant list that may have become
established.
Vegetation maintenance shall be the responsibility of the Landscape Maintenance District,
it successors or assignees, or owner. Overall onsite fuel management shall be funded
through the Community Facilities District (CFD) and/Landscape Maintenance District and
administered by the City of Chula Vista. This will ensure long-term maintenance of these
areas.
9.6 Fuel Management During Construction/Phase Implementation
During phase implementation fuel management shall be implemented. Lots that are vacant
will not be required to have brush management until construction begins, except those
portions within 100 feet of any structure under construction or existing, then normal fuel
management zones apply.
Fuel management zones required for a particular parcel shall be installed and maintained
prior to flammable material being brought onto the parcel. This applies even if fuel
management has to occur on adjacent parcels.
9.7 Fuel Management for Parks and Community Open Space
This section applies only to parks and community open space within the development. This
section specifically does not apply to the MSCP preserve area in the southeastern portion of
the project site. Parks and community open space shall be maintained in a fire safe manner.
Types and spacing of plants, trees and shrubs will comply with the same criteria as Fire
Protection Planning Area B.
Village 8 West 24 Fire Protection Plan
February 2012
9.8 Emergency Brush Management
In the event that the City Fire Marshal determines an emergency situation exists, minimal
additional brush management may be undertaken under the direction of the Fire Marshal. In
such an emergency situation, the Fire Marshal will adhere to the Memorandum of
Understanding between the Wildlife Agencies, California Department of Forestry, the San
Diego County Fire Chief’s Association, and the Fire District’s Association of San Diego
County dated February 26, 1997
10.0 GUIDELINES FOR PLANTING IN FUEL MODIFICATION ZONES
Planting in fuel modification areas shall be in accordance with the following guidelines:
1. Limit planting in large unbroken masses, especially trees and large shrubs, while
simultaneously trying to achieve the desired screening. Groups should be two (2) or
three (3) maximum, with mature foliage of any group separated horizontally by at
least twenty (20) feet. Specific planting details are outlined in Section 9.1.
2. Avoid massing of shrubs at bases of trees or larger shrubs; adhere to the plant
spacing illustrated below:
Village 8 West 25 Fire Protection Plan
February 2012
3. Avoid massing of vegetation adjacent to structures, especially under eaves,
overhangs, decks, etc.
4. Limit the use of plants that have the following characteristics:
o Dry or deciduous foliage during part of the year.
o Deciduous or shaggy bark.
o Dry or dead undergrowth.
5. Avoid topping trees as this causes excessive branching, which can increase fire
danger.
Village 8 West 26 Fire Protection Plan
February 2012
11.0 REFERENCES
BehavePlus 4.0. Behave Plus 4.0 Fire Modeling Software. www.firemodels.org
California Fire Code 2007. California Code of Regulations, Title 24, Part 9. International
Code Council.
Cal-IPC. 2006. California Invasive Plant Inventory. Cal-IPC Publication 2006-02.
California Invasive Plant Council: Berkeley, CA. Available: www.cal-ipc.org.
Chula Vista. Construction Site Policy for Compliance with Fire Safety Provisions.
http://www.chulavistaca.gov/City_Services/Public_Safety/Fire_Department/Safety/
prevention.asp
Chula Vista. Premise Identification Guidelines. http://www.chulavistaca.gov/
City_Services/Public_Safety/Fire_Department/Safety/prevention.asp
Chula Vista. Structure Setback Detail. http://www.chulavistaca.gov/
City_Services/Public_Safety/Fire_Department/Safety/prevention.asp
Chula Vista 2002. Subdivision Manual. Development Services Department. Chula Vista,
CA. Revised 7/1/2010.
Chula Vista 2002. Ordinance 2879§1. Adoption of the International Code Council Urban –
Wildland Interface Code.
Chula Vista 2003. City of Chula Vista Final MSCP Subarea Plan.
Chula Vista 2007. Ordinance 3093. Ordinance of the City of Chula Vista amending Chapter
15.36 of the Chula Vista Municipal Code Adopting the California Fire Code.
December 2007.
Chula Vista 2008. Ordinance 3113§ 1, Adoption of map titled “Very High Severity Hazard
Zones (VHFHSZ)-Local Responsibility Areas (LRA).
County of San Diego. Undesirable Plants.
http://www.sdcounty.ca.gov/dplu/docs/UndesirablePlants.pdf
International Urban Wildland Interface Code 2000. International Code Council.
San Diego Fire Chief’s Association 1997. Fuel Modification Zone Plant List.
Western Regional Climate Center. http://www.wrcc.dri.edu/
APPENDIX A
WEATHER CONDITIONS
APPENDIX B
FUEL MODELING
APPENDIX C
FUEL PARAMETERS
APPENDIX D
Chapter 7A of the California Building Code, “Materials and Construction Methods
for Exterior Wildfire Exposure”
CHAPTER 7A [SFM]
MATERIALS AND CONSTRUCTION METHODS FOR
EXTERIOR WILDFIRE EXPOSURE
SECTION 701A
SCOPE,PURPOSE AND APPLICATION
701A.1Scope.Thischapterappliestobuildingmaterials,sys-
temsand/orassembliesusedintheexteriordesignandcon-
structionofnewbuildingslocatedwithinaWildland-Urban
Interface Fire Area as defined in Section 702A.
701A.2Purpose.Thepurposeofthischapteristoestablish
minimumstandardsfortheprotectionoflifeandpropertyby
increasingtheabilityofabuildinglocatedinanyFireHazard
SeverityZonewithinStateResponsibilityAreasorany
Wildland-UrbanInterfaceFireAreatoresisttheintrusionof
flamesorburningembersprojectedbyavegetationfireand
contributes to a systematic reduction in conflagration losses.
701A.3Application.NewbuildingslocatedinanyFireHazard
SeverityZonewithinStateResponsibilityAreasorany
Wildland-UrbanInterfaceFireAreadesignatedbytheenforc-
ingagencyforwhichanapplicationforabuildingpermitis
submittedonorafterDecember1,2005,shallcomplywiththe
following sections:
1.704A.1—Roofing
2.704A.2—Attic Ventilation
701A.3.1Alternatesformaterials,design,tests,andmeth-
odsofconstruction.Theenforcingagencyispermittedto
modifytheprovisionsofthischapterforsite-specificcondi-
tionsinaccordancewithAppendixChapter1,Section
104.10.Whenrequiredbytheenforcingagencyforthepur-
posesofgrantingmodifications,afireprotectionplanshall
besubmittedinaccordancewiththeCaliforniaFireCode,
Chapter 47.
701A.3.2Newbuildingslocatedinanyfirehazardseverity
zone.NewbuildingslocatedinanyFireHazardSeverity
Zone shall comply with one of the following:
1.StateResponsibilityAreas.Newbuildinglocatedin
anyFireHazardSeverityZonewithinStateResponsi-
bilityAreas,forwhichanapplicationforabuilding
permitissubmittedonorafterJanuary1,2008,shall
comply with all sections of this chapter.
2.LocalAgencyVery-HighFireHazardSeverityZone.
NewbuildingslocatedinanyLocalAgency
Very-HighFireHazardSeverityZoneforwhichan
applicationforabuildingpermitissubmittedonor
afterJuly1,2008,shallcomplywithallsectionsof
this chapter.
3.Wildland-UrbanInterfaceFireAreadesignatedby
theenforcingagency.Newbuildingslocatedinany
Wildland-UrbanInterfaceFireAreadesignatedby
theenforcingagencyforwhichanapplicationfora
buildingpermitissubmittedonorafterJanuary1,
2008, shall comply with all sections of this chapter.
701A.3.2.1Inspectionandcertification.Buildingper-
mitapplicationsandfinalcompletionapprovalsfor
buildingswithinthescopeandapplicationofthischap-
ter shall comply with the following:
701A.3.2.2 Thelocalbuildingofficialshall,priortocon-
struction,providetheownerorapplicantacertification
thatthebuildingasproposedtobebuiltcomplieswithall
applicablestateandlocalbuildingstandards,including
thoseformaterialsandconstructionmethodsforwildfire
exposure as described in this chapter.
701A.3.2.3 Thelocalbuildingofficialshall,uponcom-
pletionofconstruction,providetheownerorapplicant
withacopyofthefinalinspectionreportthatdemon-
stratesthebuildingwasconstructedincompliancewith
allapplicablestateandlocalbuildingstandards,includ-
ingthoseformaterialsandconstructionmethodsfor
wildlife exposure as described in this chapter.
701A.3.2.4 Priortobuildingpermitfinalapprovalthe
propertyshallbeincompliancewiththevegetation
clearancerequirementsprescribedinCaliforniaPublic
ResourcesCode4291CaliforniaGovernmentCodeSec-
tion 51182.
SECTION 702A
DEFINITIONS
Forthepurposesofthischapter,certaintermsaredefined
below:
CDFDIRECTOR meanstheDirectoroftheCalifornia
Department of Forestry and Fire Protection.
FIREPROTECTIONPLAN isadocumentpreparedfora
specificprojectordevelopmentproposedforaWildlandUrban
InterfaceFireArea.Itdescribeswaystominimizeandmitigate
potential for loss from wildfire exposure.
TheFireProtectionPlanshallbeinaccordancewiththis
chapterandtheCaliforniaFireCode,Chapter47.When
requiredbytheenforcingagencyforthepurposesofgranting
modifications,afireprotectionplanshallbesubmitted.Only
locallyadoptedordinancesthathavebeenfiledwiththeCali-
forniaBuildingStandardsCommissionortheDepartmentof
HousingandCommunityDevelopmentinaccordancewith
Section 101.8 shall apply.
FIREHAZARDSEVERITYZONES aregeographicalareas
designatedpursuanttoCaliforniaPublicResourcesCodes
Sections4201through4204andclassifiedasVeryHigh,High,
orModerateinStateResponsibilityAreasorasLocalAgency
VeryHighFireHazardSeverityZonesdesignatedpursuantto
CaliforniaGovernmentCode,Sections51175through51189.
See California Fire Code Article 86.
2007 CALIFORNIA BUILDING CODE JANUARY 1, 2009 SUPPLEMENT 235
TheCaliforniaCodeofRegulations,Title14,Section1280,
entitlesthemapsofthesegeographicalareasas“Mapsofthe
FireHazardSeverityZonesintheStateResponsibilityAreaof
California.”
IGNITION-RESISTANTMATERIAL isanyproductwhich,
whentestedinaccordancewithASTME84foraperiodof30
minutes,shallhaveaflamespreadofnotover25andshowno
evidenceofprogressivecombustion.Inaddition,theflame
frontshallnotprogressmorethan10½feet(3200mm)beyond
the centerline of the burner at any time during the test.
Materialsshallpasstheacceleratedweatheringtestandbe
identifiedasexteriortype,inaccordancewithASTMD2898
andASTMD3201.Allmaterialsshallbearidentification
showingthefireperformanceratingthereof.Thatidentifica-
tionshallbeissuedbyICC-ESoratestingfacilityrecognized
bytheStateFireMarshalhavingaserviceforinspectionof
materials at the factory.
Fire-Retardant-TreatedWoodornoncombustiblematerials
asdefinedinSection202shallsatisfytheintentofthissection.
Theenforcingagencymayuseotherdefinitionsofigni-
tion-resistantmaterialthatreflectwildfireexposuretobuilding
materialsand/ortheirmaterials,performanceinresisting
ignition.
LOCALAGENCYVERYHIGHFIREHAZARDSEVER-
ITYZONE meansanareadesignatedbyalocalagencyupon
therecommendationoftheCDFDirectorpursuanttoGovern-
mentCodeSections51177(c),51178and5118thatisnota
stateresponsibilityareaandwherealocalagency,city,county,
city and county, or district is responsible for fire protection.
STATERESPONSIBILITYAREA meanslandsthatareclas-
sifiedbytheBoardofForestrypursuanttoPublicResources
CodeSection4125wherethefinancialresponsibilityofpre-
ventingandsuppressingforestfiresisprimarilytheresponsi-
bility of the state.
WILDFIREisanyuncontrolledfirespreadingthroughvegeta-
tivefuelsthatthreatenstodestroylife,property,orresourcesas
defined in Public Resources Code Sections 4103 and 4104.
WILDFIREEXPOSURE isoneoracombinationofradiant
heat,convectiveheat,directflamecontactandburningembers
beingprojectedbyvegetationfiretoastructureanditsimmedi-
ate environment.
WILDLAND-URBANINTERFACEFIREAREA isageo-
graphicalareaidentifiedbythestateasa“FireHazardSever-
ityZone”inaccordancewiththePublicResourcesCode
Sections4201through4204andGovernmentCodeSections
51175through51189,orotherareasdesignatedbytheenforc-
ing agency to be at a significant risk from wildfires.
SECTION 703A
STANDARDS OF QUALITY
703A.1General.Material,systems,andmethodsofconstruc-
tion used shall be in accordance with this Chapter.
703A.2Qualificationbytesting.Materialandmaterialassem-
bliestestedinaccordancewiththerequirementsofSection
703Ashallbeacceptedforusewhentheresultsandconditions
ofthosetestsaremet.Testingshallbeperformedbyatesting
agencyapprovedbytheStateFireMarshaloridentifiedbyan
ICC-ES report.
703A.3Standardsofquality.TheStateFireMarshalstan-
dardslistedbelowandasreferencedinthischapterarelocated
intheCaliforniaReferencedStandardsCode,Part12and
Chapter 35 of this code.
SFM12-7A-1,Exterior Wall Siding and Sheathing.
SFM12-7A-2,Exterior Window.
SFM12-7A-3,Under Eave.
SFM12-7A-4,Decking.
SECTION 704A
MATERIALS,SYSTEMS AND
METHODS OF CONSTRUCTION
704A.1Roofing.
704A.1.1General.Roofsshallcomplywiththerequire-
mentsofChapter7AandChapter15.Roofsshallhavea
roofingassemblyinstalledinaccordancewithitslistingand
the manufacturer's installation instructions.
704A.1.2Roofcoverings.Wheretheroofprofileallowsa
spacebetweentheroofcoveringandroofdecking,the
spacesshallbeconstructedtopreventtheintrusionof
flamesandembers,befirestoppedwithapprovedmaterials
orhaveonelayerof72pound(32.4kg)mineral-surfaced
nonperforatedcapsheetcomplyingwithASTMD3909
installed over the combustible decking.
704A.1.3Roofvalleys.Whenprovided,valleyflashings
shallbenotlessthan0.019-inch(0.48mm)(No.26galva-
nizedsheetgage)corrosion-resistantmetalinstalledovera
minimum36-inch-wide(914mm)underlaymentconsisting
ofonelayerof72pound(32.4kg)mineral-surfaced
nonperforatedcapsheetcomplyingwithASTMD3909run-
ning the full length of the valley.
704A.1.4 Reserved.
704A.1.5Roofgutters.Roofguttersshallbeprovidedwith
themeanstopreventtheaccumulationofleavesanddebris
in the gutter.
704A.2Attic ventilation.
704A.2.1General.WhenrequiredbyChapter15,roofand
atticventsshallresisttheintrusionofflameandembersinto
theatticareaofthestructure,orshallbeprotectedbycorro-
sion-resistant,noncombustiblewiremeshwithopeningsa
minimumof 1/8-inch(3.2mm)andshallnotexceed 1/4-inch
(6 mm) or its equivalent.
704A.2.2Eaveorcornicevents.Ventsshallnotbeinstalled
in eaves and cornices.
Exception:Eaveandcorniceventsmaybeusedpro-
videdtheyresisttheintrusionofflameandburning
embers into the attic area of the structure.
704A.2.3Eaveprotection.Eavesandsoffitsshallmeetthe
requirementsofSFM12-7A-3orshallbeprotectedbyigni-
tion-resistantmaterialsornoncombustibleconstructionon
the exposed underside.
236 JANUARY 1, 2009 SUPPLEMENT 2007 CALIFORNIA BUILDING CODE
MATERIALS AND CONSTRUCTION METHODS FOR EXTERIOR WILDFIRE EXPOSURE
704A.3Exterior walls.
704A.3.1General.Exteriorwallsshallbeapproved
noncombustibleorignition-resistantmaterial,heavytim-
ber,orlogwallconstructionorshallprovideprotection
fromtheintrusionofflamesandembersinaccordancewith
standardSFM12-7A-1.
704A.3.1.1Exteriorwallcoverings.Exteriorwallcov-
eringsshallextendfromthetopofthefoundationtothe
roof,andterminateat2-inch(50.8mm)nominalsolid
woodblockingbetweenraftersatallroofoverhangs,or
inthecaseofenclosedeaves,terminateattheenclosure.
704A.3.2Exteriorwallopenings.Exteriorwallopenings
shall be in accordance with this section.
704A.3.2.1Exteriorwallvents.Unlessotherwisepro-
hibitedbyotherprovisionsofthiscode,ventopeningsin
exteriorwallsshallresisttheintrusionofflameand
embersintothestructureorventsshallbescreenedwith
acorrosion-resistant,noncombustiblewiremeshwith
1/4- inch (6 mm) openings or its equivalent.
704A.3.2.2Exteriorglazingandwindowwalls.Exterior
windows,windowwalls,glazeddoors,andglazedopen-
ingswithinexteriordoorsshallbeinsulating-glassunits
withaminimumofonetemperedpane,orglassblock
units,orhaveafire-resistanceratingofnotlessthan20
minutes,whentestedaccordingtoNFPA257,orin
accordancewithSection715,orconformtotheperfor-
mance requirements ofSFM12-7A-2.
704A.3.2.3Exteriordoorassemblies.Exteriordoor
assembliesshallconformtotheperformancerequire-
mentsofstandardSFM12-7A-1orshallbeofapproved
noncombustibleconstruction,orsolidcorewoodhaving
stilesandrailsnotlessthan13/8 inchesthickwithinterior
fieldpanelthicknessnolessthan11/4 inchesthick,or
shallhaveafire-resistanceratingofnotlessthan20min-
uteswhentestedaccordingtoNFPA252,orinaccor-
dance with Section 715.
Exception:Noncombustibleorexteriorfire-retar-
danttreatedwoodvehicleaccessdoorsarenot
required to comply with this chapter.
704A.4Decking, floors and underfloor protection.
704A.4.1Decking.
704A.4.1.1Deckingsurfaces.Decking,surfaces,stair
treads,risers,andlandingsofdecks,porches,andbalco-
nieswhereanyportionofsuchsurfaceiswithin10feet
(3048mm)oftheprimarystructureshallcomplywith
one of the following methods:
1.Shallbeconstructedofignition-resistantmateri-
alsandpasstheperformancerequirementsofSFM
12-7A-4, Parts A and B.
2.Shallbeconstructedwithheavytimber,exterior
fire-retardant-treatedwoodorapprovednoncom-
bustible materials.
3.ShallpasstheperformancerequirementsofSFM
12-7A-4,PartA,12-7A-4.7.5.1onlywithanet
peakheatreleaserateof25kW/sq-ftfora40-min-
ute observation period and:
a.Deckingsurfacematerialshallpasstheac-
celeratedweatheringtestandbeidentified
asexteriortype,inaccordancewithASTMD
2898 and ASTM D 3201 and;
b.Theexteriorwallcoveringtowhichitthe
deckisattachedandwithin10(3048mm)
feetofthedeckshallbeconstructedofap-
provednoncombustibleorignitionresistant
material.
Exception:Wallsarenotrequiredtocomply
withthissubsectionifthedeckingsurface
materialconformstoASTME-84ClassB
flame spread.
Theuseofpaints,coatings,stains,orothersurface
treatmentsarenotanapprovedmethodofprotectionas
required in this chapter.
704A.4.2Underfloor and appendages protection.
704A.4.2.1Undersideofappendagesandfloorprojec-
tions.Theundersideofcantileveredandoverhanging
appendagesandfloorprojectionsshallmaintainthe
ignition-resistantintegrityofexteriorwalls,orthepro-
jection shall be enclosed to the grade.
704A.4.2.2Unenclosedunderfloorprotection.Build-
ingsshallhaveallunderfloorareasenclosedtothe
gradewithexteriorwallsinaccordancewithSection
704A.3.
Exception:Thecompleteenclosureofunderfloor
areasmaybeomittedwheretheundersideofall
exposedfloors,exposedstructuralcolumns,beams
andsupportingwallsareprotectedasrequiredwith
exteriorignition-resistantmaterialconstructionorbe
heavy timber.
704A.5Ancillary buildings and structures.
704A.5.1Ancillarybuildingsandstructures.When
requiredbytheenforcingagency,ancillarybuildingsand
structuresanddetachedaccessorystructuresshallcomply
with the provisions of this chapter.
2007 CALIFORNIA BUILDING CODE JANUARY 1, 2009 SUPPLEMENT 237
MATERIALS AND CONSTRUCTION METHODS FOR EXTERIOR WILDFIRE EXPOSURE
APPENDIX E
ACCEPTABLE PLANTS
Village8West-FireProtectionPlanningAreaA
MSCPBufferZone
FuelModificationPlantPalette
Existing Approved
Natives Village2
OnSite*Species**BOTANICALNAME-CommonName
LARGESHRUBS:
s HETEROMELESARBUTIFOLIA-Toyon
u s ISOMERISARBOREA-BladderPod
u s RHAMNUSCROCEA-Redberry
u s SIMMONDSIACHINENSIS-Jojoba
u YUCCASCHIDIGERA-MojaveYucca
SUBSHRUBS/PERENNIALS/SUCCULENTS:
u BACCHARISPILULARIS-CoyoteBrush
u s CYLINDROPUNTIACALIFORNICA-SnakeCholla
u s DEINANDRA(HEMIZONIA)FASCICULATA-FascicledTarplant
u s DISTICHLISSPICATA-SpikedSaltGrass
u IVAHAYESIANA-SanDiegoMarsh-elder
u s LUPINUSSUCCULENTUS-ArroyoLupine
u MALACHOTHAMNUSFASCICULATUS-ChaparrelBushmallow
u s NASSELLAPULCHRA-PurpleNeedlegrass
u s OPUNTIALITTORALIS-CoastalPricklyPear
u SALVIAAPIANA-WhiteSage
u s SISYRINCHIUMBELLUM-Blue-eyedGrass
u s VIGUIERALACINIATA-SanDiegoSunflower
SEEDEDPLANTS:
u BLOOMERIACROCEA-CommonGoldstar
u s DEINANDRA(HEMIZONIA)FASCICULATA-FascicledTarplant
u HAZARDIASQUARROSA-SawtoothGoldenfields
u s LUPINUSSUCCULENTUS-ArroyoLupine
u PLANTAGOERECTA-Dot-seedPlantain
u s SISYRINCHIUMBELLUM-Blue-eyedGrass
NOTES:
Alllistedspeciesaresuitableforfuelmodificationzones
*ExistingspeciesonsiteperBiologicalResourcesReportbyURS,July26,2010
**ApprovedforVillages2,3,&portionsof4
October18,2010
VILLAGE8WEST-FireProtectionPlanningArea'B'
FuelModificationPlantPalette
October18,2010
BOTANICALNAME/COMMONNAME
Trees:
QUERCUSAGRIFOLIA-CoastLiveOak
QUERCUSENGELMANNII-EngelmannOak
PLATANUSRACEMOSA-CaliforniaSycamore
Shrubs
COMAROSTAPHYLISD.'DIVERSIFOLIA'-SummerHolly
DODONAEAVISCOSA-HopBush
GALVEZIASPECIOSA-BushSnapdragon
HETEROMELESARBUTIFOLIA-Toyon
LYCIUMANDERSONI-WaterJacket
PRUNUSILICIFOLIASP.ILICIFOLIA-HollyleafCherry
RHAMNUSCROCEA-Redberry
RHUSINTEGRIFOLIA-LemonadeBerry
Perennials
AGAVESPECIES-Agave
ENCELIACALIFORNICA-CoastalSunflower
ENCELIAFARINOSA-Brittlebush
SALVIAAPIANA-WhiteSage
Groundcovers
BACCHARISP.'PIGEONPOINT'
IVAHAYESIANA-SanDiegoPovertyWeed
SeededPlants
CAMISSONIACHEIRANTHIFOLIA-BeachEveningPrimrose
DEINANDRA(HEMIZONIA)FASCICULATA-CommonTarplant
ENCELIACALIFORNICA-BushSunflower
ERIOPHYLLUMCONFERTIFLORUM-GoldenYarrow
ESCHSCHOLZIACALIFORNICA-CaliforniaPoppy
GNAPHALIUMBICOLOR-BicolorCudweed
ISOCOMAMENZIESII-CoastGoldenbush
IVAHAYESIANA-SanDiegoPovertyWeed
LASTHENIACALIFORNICA-DwarfGoldfields
LAYIAPLATYGLOSSA-CommonTidy-Tips
LUPINUSBICOLOR-MinatureLupine
NASSELLAPULCHRA-PurpleNeedlegrass
PHACELIACAMPANULARIA-CaliforniaBlueBells
SISYRINCHIUMBELLUM-BlueEyedGrass
VIGUIERALACINIATA-SanDiegoSunflower
APPENDIX F
UNDESIREABLE PLANTS