HomeMy WebLinkAboutAppendix C - Biological Technical Report
Biological Technical Report
for the
8.38-Acre Maple Property Project
San Bernardino County, California
Prepared For:
Diversified Pacific Communities
10621 Civic Center Drive
Rancho Cucamonga, California 91730
Prepared By:
215 North 5th Street
Redlands, California 92374
November 2023
ECORP Consulting, Inc.
ENVIRONMENTA L CONSULTANTS
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TABLE OF CONTENTS
1.0 INTRODUCTION ................................................................................................................................................................... 1
1.1 Project Description and Location.................................................................................................................. 1
2.0 FEDERAL, STATE, AND LOCAL REGULATIONS .......................................................................................................... 1
2.1 Federal Regulations ............................................................................................................................................ 1
2.1.1 The Federal Endangered Species Act ......................................................................................... 1
2.1.2 National Environmental Policy Act .............................................................................................. 4
2.1.3 Migratory Bird Treaty Act ................................................................................................................ 4
2.1.4 Federal Clean Water Act .................................................................................................................. 4
2.2 State and Local Regulations ........................................................................................................................... 6
2.2.1 California Endangered Species Act .............................................................................................. 6
2.2.2 Fully Protected Species .................................................................................................................... 6
2.2.3 California Native Plant Protection Act ........................................................................................ 7
2.2.4 California Fish and Game Code .................................................................................................... 7
2.2.5 Bat Species ............................................................................................................................................ 8
2.2.6 Porter-Cologne Water Quality Act .............................................................................................. 8
2.2.7 California Environmental Quality Act Significance Criteria ................................................ 9
3.0 METHODS ............................................................................................................................................................................ 10
3.1 Literature Review .............................................................................................................................................. 10
3.2 Field Survey ........................................................................................................................................................ 11
3.2.1 Biological Reconnaissance Survey ............................................................................................ 11
4.0 RESULTS ................................................................................................................................................................................ 12
4.1 Literature Review .............................................................................................................................................. 12
4.1.1 Special-Status Plants and Wildlife ............................................................................................ 12
4.1.2 U.S. Fish and Wildlife Service Designated Critical Habitat .............................................. 12
4.1.3 Preliminary Aquatic Resources Delineation Literature Review ...................................... 12
4.2 Biological Reconnaissance Survey ............................................................................................................. 13
4.2.1 Property Characteristics ................................................................................................................ 13
4.2.2 Vegetation Communities .............................................................................................................. 13
4.2.3 Plants .................................................................................................................................................... 16
4.2.4 Wildlife ................................................................................................................................................. 16
4.2.5 Potential for Special-Status Plant and Wildlife Species to Occur on the Project
Area ....................................................................................................................................................... 16
4.2.6 Raptors and Migratory Birds ....................................................................................................... 23
4.2.7 Wildlife Movement Corridors, Linkages, and Significant Ecological Areas .............. 24
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5.0 IMPACT ANALYSIS ............................................................................................................................................................ 24
5.1 Special-Status Species .................................................................................................................................... 24
5.2 Sensitive Natural Communities .................................................................................................................. 27
5.3 State and Federally Protected Wetlands and Waters of the United States .............................. 27
5.4 Wildlife Corridors and Nursery Sites ........................................................................................................ 27
6.0 RECOMMENDATIONS ..................................................................................................................................................... 27
6.1 Additional Recommendations .................................................................................................................... 30
7.0 CERTIFICATION .................................................................................................................................................................. 31
8.0 LITERATURE CITED ........................................................................................................................................................... 32
LIST OF TABLES
Table 1. Weather Conditions During the Survey ................................................................................................................... 13
Table 2. CRPR Status Designations ............................................................................................................................................. 17
LIST OF FIGURES
Figure 1. Project Vicinity .................................................................................................................................................................... 2
Figure 2. Project Location .................................................................................................................................................................. 3
Figure 3. Natural Resources Conservation Service Soil Types ......................................................................................... 14
Figure 4. Biological Results ............................................................................................................................................................ 14
LIST OF APPENDICES
Appendix A – Representative Site Photographs
Appendix B – Plant Species Observed
Appendix C – Wildlife Species Observed
Appendix D – Special-Status Plant Species Potential for Occurrence
Appendix E – Special-Status Wildlife Species Potential for Occurrence
LIST OF ACRONYMS AND ABBREVIATIONS
Term Definition
°F Degrees Fahrenheit
CCR California Code of Regulations
CDFG California Department of Fish and Game
CDFW California Department of Fish and Wildlife
CEQA California Environmental Quality Act
CFR Code of Federal Regulations
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Term Definition
CNDDB California Natural Diversity Database
CNPS California Native Plant Society
CNPSEI California Native Plant Society’s Electronic Inventory
CRPR California Rare Plant Rank
CWA Clean Water Act
ESA Endangered Species Act
GPS Global Positioning System
HCP Habitat Conservation Plan
MBTA Migratory Bird Treaty Act
mph Miles per Hour
NEPA National Environmental Policy Act
NPPA Native Plant Protection Act
NRCS Natural Resources Conservation Service
OHWM Ordinary High-Water Mark
Procedures Procedures for Discharges of Dredged or Fill Material to Waters of the State
Project Maple Property Project
RWQCB Regional Water Quality Control Board
SAA Streambed Alteration Agreement
SSC Species of Special Concern
USACE U.S. Army Corps of Engineers
USC U.S. Code
USFWS U.S. Fish and Wildlife Service
USGS U.S. Geological Survey
WOTUS Waters of the U.S.
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1.0 INTRODUCTION
ECORP Consulting, Inc. (ECORP) conducted a biological reconnaissance survey at an approximately 8.38-
acre property (Assessor Parcel Numbers: 024-314-201, 024-314-206, 024-314-205, 024-314-204, 024-314-
203, and 024-314-202) in the City of Fontana, San Bernardino County, California. The survey was
conducted to identify any potential biological resources that could be affected by the proposed 8.38-Acre
Maple Property Project (Project) pursuant to the terms of the California Environmental Quality Act (CEQA),
and for the purposes of identifying any biological constraints that would affect the proposed site plan for
the Project. The Project will be subject to county, state, and federal regulations regarding compliance with
the federal Endangered Species Act (ESA), California ESA, Migratory Bird Treaty Act (MBTA), Clean Water
Act (CWA) regulations, California State Water Resources Control Board for state waters, and California Fish
and Game Code.
1.1 Project Description and Location
The Project is located in Section 4 of Township 1 South, Range 5 West, San Bernardino Base and Meridian
as depicted on the “Fontana, California” U.S. Geological Survey 7.5-minute topographic quadrangle in the
County of San Bernardino (Figure 1). The Project is located at the northwest corner of the intersection of
W Foothill Boulevard and N Maple Avenue in the City of Fontana, California (Figure 2). The elevation of
the Project Area lies between 1305 and 1316 feet (398 and 400 meters) above mean seal level.
The Project proposes complete development of the approximately 8.38-acre Project Area. The Proposed
Project entails the construction of a gated residential community consisting of six buildings, each of which
is either a three-story or four-story apartment building. The Proposed Project will also include a pool, a
dog park, landscaped open space, and a combined clubhouse and leasing office, in addition to roadways,
necessary utilities, and a covered garage and open parking.
2.0 FEDERAL, STATE, AND LOCAL REGULATIONS
This biological reconnaissance survey was conducted to identify potential biological resource constraints
and ensure compliance with federal, state, and local regulations regarding listed, protected, and special-
status species and resources. The regulations are detailed below.
2.1 Federal Regulations
2.1.1 The Federal Endangered Species Act
The federal ESA protects plants and animals that are listed as endangered or threatened by the U.S. Fish
and Wildlife Service (USFWS) and the National Marine Fisheries Service. Section 9 of the ESA prohibits the
taking of endangered wildlife, where taking is defined as “harass, harm, pursue, hunt, shoot, wound, kill,
trap, capture, collect, or attempt to engage in such conduct” (50 Code of Federal Regulations [CFR] 17.3).
For plants, this statute governs removing, possessing, maliciously damaging, or destroying any
endangered plant on federal land and removing, cutting, digging up, damaging, or destroying any
endangered plant on non-federal land in knowing violation of state law (16 U.S. Code [USC] 1538).
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Under Section 7 of the ESA, federal agencies are required to consult with the USFWS if their actions,
including permit approvals or funding, could adversely affect a listed (or proposed) species (including
plants) or its critical habitat. Through consultation and the issuance of a biological opinion, the USFWS
may issue an incidental take statement allowing take of the species that is incidental to an otherwise
authorized activity provided the activity will not jeopardize the continued existence of the species. Section
10 of the ESA provides for issuance of incidental take permits where no other federal actions are
necessary provided a habitat conservation plan is developed.
2.1.2 National Environmental Policy Act
Signed into law on January 1, 1970, the National Environmental Policy Act (NEPA) requires all federal
agencies to analyze the environmental impacts related to their proposed actions prior to making and
implementing decisions or actions. This framework for evaluation of environmental and associated
economic and social effects of proposed actions, described in 42 USC 4321, also provides the public
opportunity to review and comment. Actions that are covered by NEPA include decision-making related
to publicly owned facilities such as highways, permit applications, and federal land management.
2.1.3 Migratory Bird Treaty Act
The MBTA implements international treaties between the U.S. and other nations devised to protect
migratory birds, any of their parts, eggs, and nests from activities including hunting, pursuing, capturing,
killing, selling, and shipping, unless expressly authorized in the regulations or by permit. As authorized by
the MBTA, the USFWS issues permits to qualified applicants for the following types of activities: falconry,
raptor propagation, scientific collecting, special purposes (rehabilitation, education, migratory game bird
propagation, and salvage), take of depredating birds, taxidermy, and waterfowl sale and disposal. The
regulations governing migratory bird permits can be found in 50 CFR Part 13 General Permit Procedures
and 50 CFR Part 21 Migratory Bird Permits.
2.1.4 Federal Clean Water Act
Under Section 404 of the federal CWA, potential Waters of the U.S., including wetlands, may be regulated
by the U.S. Army Corps of Engineers (USACE). The limit of USACE jurisdiction for non-tidal watercourses
(without adjacent wetlands) is defined in 33 Code of Federal Regulations 328.4(c)(1) as the Ordinary High-
Water Mark (OHWM).
The OHWM is defined as the line on the shore established by the fluctuations of water and indicated by
physical characteristics such as clear, natural line impressed on the bank, shelving, changes in the
character of soil, destruction of terrestrial vegetation, the presence of litter and debris, or other
appropriate means that consider the characteristics of the surrounding areas. The upstream limits of other
waters are defined as the point where the OHWM is no longer perceptible.
Jurisdictional Waters of the U.S. (WOTUS) are delineated in accordance with the “Revised Definition of
‘Waters of the United States’” rule, published in the Federal Register in 2022 and which became final on
January 18, 2023. This rule, set forth by the United States Environmental Protection Agency and USACE,
was consistent with the pre-2015 regulatory definition as all waters that are currently used, or were used
in the past, or may be susceptible to use in interstate commerce, including all waters subject to the ebb
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and flow of the tide. This definition also includes all interstate waters, including interstate wetlands,
interstate lakes, rivers, streams (including all intermittent and ephemeral streams), mudflats, sand flats,
sloughs, and prairie potholes, wet meadows, playa lakes, or natural ponds where the use, degradation, or
destruction of which could affect interstate or foreign commerce. Under this rule, WOTUS do not include
prior converted cropland.
The definition of WOTUS in accordance with this rule (40 CFR 230.3[s]), is summarized below.
1. All waters which are currently used, or were used in the past, or may be susceptible to use
in interstate or foreign commerce, including all waters which are subject to the ebb and
flow of the tide;
2. All interstate waters including interstate wetlands;
3. All other waters such as intrastate lakes, rivers, streams (including intermittent streams),
mudflats, sandflats, wetlands, sloughs, prairie potholes, wet meadows, playa lakes, or
natural ponds, the use, degradation or destruction of which could affect interstate or
foreign commerce including any such waters: (i) Which are or could be used by interstate
or foreign travelers for recreational or other purposes; or (ii) From which fish or shellfish
are or could be taken and sold in interstate or foreign commerce; or (iii) Which are used
or could be used for industrial purpose by industries in interstate commerce;
4. All impoundments of waters otherwise defined as waters of the U.S. under the definition;
5. Tributaries of waters identified in paragraphs (s)(1)-(4) of this section;
6. The territorial sea; and
7. Wetlands adjacent to waters (other than waters that are themselves wetlands) identified
in paragraphs (s)(1) through (6) of this section; waste treatment systems, including
treatment ponds or lagoons designed to meet the requirements of CWA (other than
cooling ponds as defined in 40 CFR 423.11(m) which also meet the criteria of this
definition) are not WOTUS.
On May 25, 2023, the Supreme Court of the United States adopted a narrower definition of WOTUS in the
case Sackett v. Environmental Protection Agency. Under the majority opinion, WOTUS refers to
“geographical features that are described in ordinary parlance as ‘streams, oceans, rivers, and lakes’ and to
adjacent wetlands that are ‘indistinguishable’ from those bodies of water due to a continuous surface
connection.” On August 29, 2023, the agencies issued a final rule to amend the final “Revised Definition of
‘Waters of the United States’” rule to conform the definition of “waters of the United States” to the U.S.
Supreme Court’s May 25, 2023, decision in the case of Sackett v. Environmental Protection Agency.
Parts of the January 2023 Rule are invalid under the Supreme Court’s interpretation of the CWA in the
Sackett decision. Therefore, the agencies have amended key aspects of the regulatory text to conform to
the Court’s decision. Key changes under the amendment include:
Definition of “adjacent” is now “having a continuous surface connection;”
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Only tributaries that are relatively permanent, standing or continuously flowing bodies of water
(or tributaries with a continuous surface connection to those) are considered jurisdictional;
Interstate wetlands are no longer jurisdictional just by virtue of being interstate; and
Significant nexus test is eliminated.
Where areas jurisdictional to the USACE are present, and will be impacted by a project, the project
proponent must usually apply for permitting with the agency, which generally consists of submittal of a
Pre-Construction Notification under Section 404 of the CWA. As of the writing of this report, we do not
know the details of how the individual USACE offices will implement the conforming rule for permitting
purposes.
2.2 State and Local Regulations
2.2.1 California Endangered Species Act
The California ESA generally parallels the main provisions of the ESA but, unlike its federal counterpart,
the California ESA applies the take prohibitions to species proposed for listing (called “candidates” by the
state). Section 2080 of the California Fish and Game Code prohibits the taking, possession, purchase, sale,
and import or export of endangered, threatened, or candidate species, unless otherwise authorized by
permit or in the regulations. Take is defined in Section 86 of the California Fish and Game Code as “hunt,
pursue, catch, capture, or kill, or attempt to hunt, pursue, catch, capture, or kill.” The California ESA allows
for take incidental to otherwise lawful development projects. State lead agencies are required to consult
with California Department of Fish and Wildlife (CDFW) to ensure that any action they undertake is not
likely to jeopardize the continued existence of any endangered or threatened species or result in
destruction or adverse modification of essential habitat.
2.2.2 Fully Protected Species
The State of California first began to designate species as fully protected prior to the creation of the
federal and California ESAs. Lists of fully protected species were initially developed to provide protection
to those animals that were rare or faced possible extinction, and included fish, amphibians, reptiles, birds,
and mammals. Most fully protected species have since been listed as threatened or endangered under the
federal and/or California ESA. Previously, the regulations that implement the Fully Protected Species
Statute (California Fish and Game Code § 4700) provide that fully protected species may not be taken or
possessed at any time. However, as of July 10, 2023, Senate Bill 147 (SB147) was signed into law,
authorizing CDFW to issue take permits under the California ESA for fully protected species for qualifying
projects through 2033. As stated in section 2081.15 of SB147, qualifying projects include:
A maintenance, repair, or improvement project to the State Water Project, including existing
infrastructure, undertaken by the Department of Water Resources;
A maintenance, repair, or improvement project to critical regional or local water agency
infrastructure;
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A transportation project, including any associated habitat connectivity and wildlife crossing
project, undertaken by a state, regional, or local agency, that does not increase highway or street
capacity for automobile or truck travel;
A wind project and any appurtenant infrastructure improvement, and any associated electric
transmission project carrying electric power from a facility that is located in the state to a point of
junction with any California based balancing authority; and
A solar photovoltaic project and any appurtenant infrastructure improvement, and any associated
electric transmission project carrying electric power from a facility that is located in the state to a
point of junction with any California-based balancing authority.
2.2.3 California Native Plant Protection Act
The California Native Plant Protection Act (NPPA) of 1977 (California Fish and Game Code §§ 1900-1913)
was created with the intent to “preserve, protect and enhance rare and endangered plants in this State.” The
NPPA is administered by CDFW. The California Fish and Game Commission has the authority to designate
native plants as “endangered” or “rare” and to protect endangered and rare plants from take. The
California ESA of 1984 (California Fish and Game Code § 2050-2116) provided further protection for rare
and endangered plant species, but the NPPA remains part of the California Fish and Game Code.
2.2.4 California Fish and Game Code
2.2.4.1 Streambed Alteration Agreement
Pursuant to Section 1602 of the California Fish and Game Code, a Streambed Alteration Agreement (SAA)
application must be submitted for “any activity that may substantially divert or obstruct the natural flow or
substantially change the bed, channel, or bank of any river, stream, or lake” (CDFW 2021). In Title 14 of the
California Code of Regulations, Section 1.72, the CDFW defines a stream (including creeks and rivers) as “a
body of water that flows at least periodically or intermittently through a bed or channel having banks and
supports fish or other aquatic life. This includes watercourses having a surface or subsurface flow that
supports or has supported riparian vegetation.”
In Chapter 9, Section 2785 of the Fish and Game Code, riparian habitat is defined as “lands which contain
habitat which grows close to, and which depends upon, soil moisture from a nearby freshwater source.”
The CDFW’s jurisdiction includes drainages with a definable bed, bank, or channel and areas associated
with a drainage channel that support intermittent, perennial, or subsurface flows; supports fish or other
aquatic life; or supports riparian or hydrophytic vegetation. It also includes areas that have a hydrologic
source.
The CDFW will determine if the proposed actions will result in diversion, obstruction, or change of the
natural flow, bed, channel, or bank of any river, stream, or lake that supports fish or wildlife. If warranted,
the CDFW will issue an SAA that includes measures to protect affected fish and wildlife resources; this SAA
is the final proposal agreed upon by the CDFW and the applicant.
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2.2.4.2 Migratory Birds
The CDFW enforces the protection of nongame native birds in §§ 3503, 3503.5, and 3800 of the California
Fish and Game Code. Section 3513 of the California Fish and Game Code prohibits the possession or take
of birds listed under the MBTA. These sections mandate the protection of California nongame native
birds’ nests and also make it unlawful to take these birds. All raptor species are also protected from “take”
pursuant to California Fish and Game Code § 3503.5 and are also protected at the federal level by the
MBTA of 1918 (USFWS 1918).
2.2.5 Bat Species
Bats in California are currently protected directly and indirectly by:
The California Fish and Game Code, Sections 86, 1600, 2000, 2014, 3007, and 4150;
California Public Resources Code, Division 14, Section 21000 et seq.;
California Code of Regulations, Title 14, including, but not limited to
Section 251.1, CEQA regulations (Section 15000 et seq.), and
Section 15382 – Significant Effect on the Environment.
Regulations of particular relevance to the protection of bats and bat roosts include Title 14, Section 251.1
of the California Code of Regulations, which prohibits harassment (defined in that section as an
intentional act that disrupts an animal’s normal behavior patterns, including breeding, feeding, or
sheltering) of nongame mammals (e.g., bats), and California Fish and Game Code Section 4150, which
prohibits take or possession of all nongame mammals or parts thereof. Any activities resulting in bat
mortality (e.g., the destruction of an occupied bat roost that results in the death of bats), disturbance that
causes the loss of a maternity colony of bats (resulting in the death of young), or various modes of
nonlethal pursuit or capture may be considered take as defined in Section 86 of the California Fish and
Game Code. In addition, impacts to bat maternity colonies, which are considered native wildlife nursery
sites, could be considered significant under CEQA.
2.2.6 Porter-Cologne Water Quality Act
The Porter-Cologne Water Quality Control Act requires “any person discharging waste, or proposing to
discharge waste, within any region that could affect the waters of the State to file a report of discharge”
with the Regional Water Quality Control Board (RWQCB) through State Wetland Definition and
Procedures for Discharges of Dredged or Fill Material to Waters of the State (Procedures) (California Code
of Regulations [CCR], title 23, § 3855) (State Water Resources Control Board 2021). Waters of the State is
defined as any surface water or groundwater, including saline waters, within the boundaries of the State
(California Water Code § 13050[e]). Pollution is defined as an alteration of the quality of the waters of the
state by waste to a degree that unreasonably affects its beneficial uses (California Water Code § 13050)
and includes filling in waters of the State. Note that CCR, title 23, § 3855 applies only to individual water
quality certifications, but the new Procedures extend the application of § 3855 to individual waste
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discharge requirements for discharges of dredged or fill material to Waters of the State and waivers
thereof.
A permit for impacts to Waters of the State of California would likely be required under the CWA and/or
Porter-Cologne Water Quality Control Act. To determine whether a project should be regulated pursuant
to the Porter-Cologne Water Quality Control Act, the RWQCB considers whether project activities could
impact the quality of Waters of the State.
On September 27, 2023, the U.S. Environmental Protection Agency published its final 2023 Clean Water
Act Section 401 Quarter Quality Certification Improvement Rule (88 Fed. Reg. 66558.) The final 2023 Rule
revises and replaces the 2020 Rule’s regulatory requirements for water quality certification that were
adopted by the prior federal administration. The updates realign the scope of the Section 401 certification
process with established practices, while also restoring the roles of states, territories, and authorized
Tribes as certifying agencies.
2.2.7 California Environmental Quality Act Significance Criteria
Section 15064.7 of the CEQA Guidelines encourages local agencies to develop and publish the thresholds
the agency uses in determining the significance of environmental effects caused by projects under its
review. However, agencies may also rely upon the guidance provided by the CEQA checklist contained in
Appendix G of the CEQA Guidelines. Appendix G provides examples of impacts that would normally be
considered significant. Based on these examples, impacts to biological resources would normally be
considered significant if a project would:
have a substantial adverse effect, either directly or through habitat modifications, on any species
identified as a candidate, sensitive, or special status species in local or regional plans, policies, or
regulations, or by CDFW or USFWS;
have a substantial adverse effect on any riparian habitat or other sensitive natural community
identified in local or regional plans, policies, regulations or by CDFW or USFWS;
interfere substantially with the movement of any native resident or migratory fish or wildlife
species, or with established native resident or migratory wildlife corridors, or impede the use of
native wildlife nursery sites;
conflict with any local policies or ordinances protecting biological resources, such as a tree
preservation policy or ordinance; and
conflict with the provisions of an adopted Habitat Conservation Plan (HCP), Natural Community
Conservation Plan, or other approved local, regional, or state HCP.
An evaluation of whether an impact on biological resources would be substantial must consider both the
resource itself and how that resource fits into a regional or local context. Substantial impacts would be
those that would diminish, or result in the loss of, an important biological resource, or those that would
obviously conflict with local, state, or federal resource conservation plans, goals, or regulations. Impacts
are sometimes locally important but not significant according to CEQA. The reason for this is that
although the impacts would result in an adverse alteration of existing conditions, they would not
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substantially diminish, or result in the permanent loss of an important resource on a population-wide or
region-wide basis.
3.0 METHODS
3.1 Literature Review
Prior to conducting the biological reconnaissance survey, ECORP biologists performed a literature review
using the CDFW’s California Natural Diversity Database (CNDDB; CDFW 2023a) and the California Native
Plant Society’s (CNPS) Electronic Inventory (CNPSEI; CNPS 2023) to determine the special-status plant and
wildlife species that have been documented near the Project Area. ECORP searched CNDDB and CNPSEI
records within the Project Area boundaries as depicted on U.S. Geological Survey (USGS) 7.5-minute
Fontana topographic quadrangle, plus the surrounding eight topographic quadrangles including Guasti,
Riverside East, Riverside West, Corona North, San Bernardino North, San Bernardino South, Cucamonga
Peak, and Devore. The CNDDB and CNPSEI contain records of reported occurrences of federally and/or
state-listed endangered, threatened, proposed endangered or threatened species, California Species of
Special Concern (SSC), or other special-status species or habitat that may occur within or near the Project.
Additional information was gathered from the following sources and includes, but is not limited to:
State and Federally Listed Endangered and Threatened Animals of California (CDFW 2023b);
Special Animals List (CDFW 2023c);
The Jepson Manual: Vascular Plants of California (Baldwin et al. 2012);
The Manual of California Vegetation, 2nd Edition (Sawyer et al. 2009);
Countywide – All Biotic Resources Overlay Map (County of San Bernardino 2012); and
various online websites (e.g., Calflora 2023).
Using this information and observations in the field, a list of special-status plant and animal species that
have the potential to occur on or near the Project Area was generated. For the purposes of this
assessment, special-status species are defined as plants or animals that:
have been designated as either rare, threatened, or endangered by CDFW, CNPS, or the USFWS,
or are protected under either the federal ESA or California ESA;
are candidate species being considered or proposed for listing under these same acts;
are fully protected by the California Fish and Game Code, §§ 3511, 4700, 5050, or 5515; or
are of expressed concern to resource and regulatory agencies or local jurisdictions.
Special-status species reported for the region in the literature review or for which suitable habitat occurs
on the site were assessed for their potential to occur within the Project Area based on the following
guidelines:
Present: The species was observed onsite during a site visit or focused survey.
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High: Habitat (including soils and elevation factors) for the species occurs within the Project Area
and a known occurrence has recently been recorded (within the last 20 years) within five miles of
the area.
Moderate: Habitat (including soils and elevation factors) for the species occurs within the Project
Area and a documented observation occurs within the database search, but not within five miles
of the area; a historic documented observation (more than 20 years old) was recorded within five
miles of the Project Area; or a recently documented observation occurs within five miles of the
area and marginal or limited amounts of habitat occurs in the Project Area.
Low: Limited or marginal habitat for the species occurs within the Project Area and a recently
documented observation occurs within the database search, but not within five miles of the area;
a historic documented observation (more than 20 years old) was recorded within five miles of the
Project Area; or suitable habitat strongly associated with the species occurs on site, but no
records or only historic records were found within the database search.
Presumed Absent: Species was not observed during a site visit or focused surveys conducted in
accordance with protocol guidelines at an appropriate time for identification; habitat (including
soils and elevation factors) does not exist on site; or the known geographic range of the species
does not include the Project Area.
Note that location information on some special-status species may be of questionable accuracy or
unavailable. Therefore, for survey purposes, the environmental factors associated with a species’
occurrence requirements may be considered sufficient reason to give a species a positive potential for
occurrence. In addition, just because a record of a species does not exist in the databases does not mean
it does not occur. In many cases, records may not be present in the databases because an area has not
been surveyed for that species. Bat species, in particular, are often underrepresented in biological
resources surveys and observations are commonly underreported in CNDDB due to the sensitivity of
known bat-roost locations. The lack of recent CNDDB records for bat observations does not necessarily
indicate a lack of sensitive bat species’ presence.
A review of the Natural Resources Conservation Service (NRCS; NRCS 2023a) Web Soil Survey, NRCS
Hydric Soils List (NRCS 2023b), National Wetlands Inventory (USFWS 2023a), and the corresponding USGS
topographic maps was also conducted to determine if there were any blue line streams or drainages
present on the Project Area that potentially fall under the jurisdiction of either federal or state agencies.
3.2 Field Survey
3.2.1 Biological Reconnaissance Survey
The biological reconnaissance survey was conducted by walking the entire Project Area and an associated
buffer, where accessible, to determine the vegetation communities and wildlife habitats present on the
site. Areas that were not accessible by foot were scanned using binoculars for suitable habitat. The
biologists documented the plant and animal species present on the Project Area, and the location and
condition of the Project Area were assessed for the potential to provide habitat for special-status plant
and wildlife species. Data were recorded on a Global Positioning System (GPS) unit, field notebooks, or
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maps. Photographs were also taken during the survey to provide visual representation of the conditions
within the Project Area. The Survey area was also examined to assess its potential to facilitate wildlife
movement or function as a movement corridor for wildlife moving throughout the region. In addition, the
biologists documented the vegetation communities present on the Project Area.
Plant and wildlife species, including any special-status species that were observed during the survey, were
recorded. Plant nomenclature follows that of The Jepson Manual: Vascular Plants of California (Baldwin et
al. 2012). Wildlife nomenclature follows Society for the Study of Amphibians and Reptiles (2017), Check-
list of North American Birds (Chesser et al. 2023), and the Revised Checklist of North American Mammals
North of Mexico (Bradley et al. 2014).
In instances where a special-status species was observed, the date, species, location and habitat, and GPS
coordinates were recorded. The locations of special-status species observations were recorded using a
handheld GPS device.
4.0 RESULTS
Summarized below are the results of the literature review and field surveys, including site characteristics,
vegetation communities, wildlife, special-status species, and special-status habitats (including any
potential wildlife corridors and native wildlife nursery sites).
4.1 Literature Review
4.1.1 Special-Status Plants and Wildlife
The literature review and database searches identified 54 special-status plant species and 44 special-
status wildlife species that could occur near the Project Area. A list was generated from the results of the
literature review and the Project Area was evaluated for suitable habitat that could support any of the
special-status plant or wildlife species on the list. Additionally, the Project Area is located within the San
Bernardino County biotic overlay for burrowing owl (County of San Bernardino 2012).
4.1.2 U.S. Fish and Wildlife Service Designated Critical Habitat
The Project Area is not located within any USFWS-designated critical habitat (USFWS 2023b). Designated
Critical Habitat for San Bernardino kangaroo rat (Dipodomys merriami parvus) is present approximately 3.4
miles east and approximately 3 miles north of the Project Area. Designated Critical Habitat for coastal
California gnatcatcher (Polioptila californica californica) is present approximately 4 miles south of the
Project Area. Designated Critical Habitat for Santa Ana sucker (Catostomus santaanae) is present
approximately 5.8 miles south of the Project Area. There are no expected impacts to the USFWS-
designated Critical Habitat as there is no Critical Habitat on or immediately adjacent to the Project Area.
4.1.3 Preliminary Aquatic Resources Delineation Literature Review
The desktop review of the NRCS identified two soil types within the Project Area: Tujunga loamy sand, 0
to 5 percent slopes and Tujunga gravelly loamy sand, 0 to 9 percent slopes (NRCS 2023a). Tujunga
gravelly loamy sand, 0 to 9 percent slopes is considered a hydric soil (NRCS 2023b; Figure 3). The National
Wetland Inventory did not identify any potential aquatic features within the Project Area (USFWS 2023a).
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4.2 Biological Reconnaissance Survey
The biological reconnaissance survey was conducted on September 8, 2023, by ECORP biologist Corrina
Tapia. Summarized below are the results of the biological reconnaissance survey including site
characteristics, plant communities, wildlife and plant species observed, special-status species potential of
occurrence, and special-status habitats (including any potential wildlife corridors). Weather conditions
during the survey are summarized in Table 1.
A bat habitat assessment of structures and trees that were accessible within the Project Area was also
conducted during the biological reconnaissance survey. The interior and exterior of unoccupied buildings
were examined for bat roosting habitat and bat sign, where accessible. During the assessment, potential
roosting structures were documented, and follow-up surveys are recommended.
Table 1. Weather Conditions During the Survey
Date Surveyors Time 7HPSHUDWXUH Ü) Cloud Cover
Wind Speed
PSK
Start End Min Max Min Max Min Max
9/8/23 Corrina Tapia 0715 0815 73.0 81.6 0 0 0-1 0-1
Note: °F = De rees Fahrenheit; m h = Miles er Hour
4.2.1 Property Characteristics
The Project Area consists of an undeveloped lot containing ruderal vegetation that was disturbed. Past
signs of disking and minor trash were present throughout the Project Area. The entire Project Area was
enclosed with chain-link fencing; however, there were numerous gaps throughout that allowed access into
the site. Two trees and some dense shrubs were present throughout the Project Area; however, the
vegetation primarily consisted of nonnative grasses and forbs. In the southeast corner of the Project Area
there was a patch of asphalt that was degraded. An abandoned portable building and two shipping
containers were present in the northern portion of the Project Area (Figure 4). The Project Area is
bounded by Barbee Street to the north, N Maple Avenue to the east, Foothill Boulevard to the south, and
commercial buildings to the west. Adjacent to the Project Area is primarily commercial and residential
development. An undeveloped lot exists to the east of the Project Area. Representative photographs of
the Project Area are presented in Appendix A.
4.2.2 Vegetation Communities
The Project Area is encompassed within a developed environment that is generally subjected to repeated
and ongoing disturbance from human activities. Native vegetation was sparse and disturbances were
present throughout the site. Disturbances included an area of degraded asphalt and signs that previous
disking had occurred. The vegetation community on the Project Area was identified as Disturbed. This is
not a vegetation community but rather a landcover type. Areas defined as Disturbed are generally areas
where native vegetation communities have been heavily influenced by human activities, such as disking,
and lack development. Native vegetation was very sparse.
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Diversified Pacific – 8.38-Acre Maple Property Project 16 November 2023
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Dominant plant species observed on the Project Area were nonnative weedy and ruderal species including
Russian thistle (Salsola tragus), puncture vine (Tribulus terrestris), and wild oat (Avena sp.). Native plant
species observed included telegraph weed (Heterotheca grandiflora), turkey-mullein (Croton setiger), and
jimsonweed (Datura wrightii).
4.2.3 Plants
Plant species observed on the Project Area were generally characteristic of disturbed areas. Native plant
species occurred at low densities and were scattered throughout the Project Area. Nonnative and weedy
species were the dominant plants within the Project Area. One tree species was identified on the Project
Area, a tree-of-heaven (Ailanthus altissima.) near the middle of the Project Area; emergent tree-of-heaven
saplings were also present throughout the southern portion of the Project Area. A tree snag (unidentified
species) was present in the southeastern portion of the Project Area. Immediately adjacent to the Project
Area were planted ornamental tree species such as fan palm (Washingtonia sp.) and eucalyptus
(Eucalyptus sp.). Due to the disturbed nature of the entire Project Area, the property represents relatively
low-quality habitat for most plant species, including common ones. A full list of plant species observed on
and immediately adjacent to the Project Area is included in Appendix B.
4.2.4 Wildlife
Despite the disturbed nature of the Project Area, wildlife species were present. Seven bird species were
observed during the biological survey and included native and nonnative species: black phoebe (Sayornis
nigricans), mourning dove (Zenaida macroura), and European starling (Sturnus vulgaris). Additionally,
Botta’s pocket gopher (Thomomys bottae) burrows were present throughout the Project Area. All of these
species are common within urban environments. A full list of wildlife species observed on and
immediately adjacent to the Project Area is included in Appendix C.
Areas of potential bat-roosting habitat were identified in the Project Area in an abandoned portable
building and a mature palm tree with an intact frond skirt. No bats or sign of bats (e.g., guano, staining)
were observed during the biological reconnaissance survey. Access to the interior of the abandoned
portable building was not available at the time of the biological reconnaissance survey; however, access to
the interior for bat species was observed through holes and cracked panels on the exterior. Due to the
potential for bat roosting on the Project Area, a preconstruction survey and two-step tree removal are
recommended within the Project Area.
4.2.5 Potential for Special-Status Plant and Wildlife Species to Occur on the Project
Area
The literature review and database searches identified 54 special-status plant species and 44 special-
status wildlife species that could occur on or near the Project Area. However, due to the level of human
disturbance within the Project Area and the current lack of suitable habitat for the special-status plant and
wildlife species, many of the species are presumed absent from the Project Area.
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4.2.5.1 Special-Status Plants
There were 54 special-status plant species that appeared in the literature review and database searches
for the Project Area (CDFW 2023a; CNPS 2023). A list was generated from the results of the literature
review and the Project was evaluated for suitable habitat that could support any of the special-status
plant species on the list. With various habitat types occurring within the 9-quadrangle search, including
the San Bernardino and San Gabriel Mountains, several species appeared in the literature review results
that had no potential to occur on or near the Project Area due to elevational and habitat requirements.
Additionally, for the purposes of this study, plant species with a CNPS California Rare Plant Rank (CRPR) of
3 or 4 were eliminated from the analysis because these rankings are considered a review list and a watch
list, respectively. Descriptions of the CRPR designations are found in Table 2.
Due to the isolated nature of the Project site, the fact that it is surrounded by development, the Project
site’s long history of disturbance, the absence of suitable habitat (including elevation, soils, and vegetation
community associations), and the lack of mobility for plant species, all of the 54 plant species identified in
the literature review were presumed absent or. A table outlining each species, their designations, and
potential for occurrence on the Project Area can be found in Appendix D.
Table 2. CRPR Status Designations
List Designation Meaning
1A Plants Presumed Extirpated in California and Either Rare or Extinct Elsewhere
1B Plants Rare, Threatened, or Endangered in California and Elsewhere
2A Plants Presumed Extirpated in California, But Common Elsewhere
2B Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere
3 Plants about which more information is needed; a review list
4 Plants of limited distribution; a watch list
List .1, .2 and .3 extension meanings:
.1 Seriously threatened in California (over 80 percent of occurrences threatened/high degree
and immediacy of threat)
.2 Moderately threatened in California (20 to 80 percent occurrences threatened/moderate
degree and immediacy of threat)
.3 Not very threatened in California (less than 20 percent of occurrences threatened/low
degree and immediacy of threat or no current threats known)
Note: According to CNPS (Skinner and Pavlik 1994), plants on Lists 1B and 2 meet definitions for listing as
threatened or endangered under Section 1901, Chapter 10, of the California Fish and Game Code (CDFG
1984). This interpretation is inconsistent with other definitions.
CDFG = California De artment of Fish and Game; CRPR = California Rare Plant Rank
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4.2.5.2 Plant Species Presumed Absent
The 54 special-status plant species identified in the literature review were all presumed absent from the
Project Area due to the isolated nature of the Project site, the fact that it is surrounded by development,
the Project site’s long history of disturbance, the absence of suitable habitat (including elevation, soils,
and vegetation community associations), and the lack of mobility for plant species, or because the Project
is located outside of the known range for the species. A list of the special-status plant species identified in
the literature review is provided below:
chaparral sand-verbena (Abronia villosa var. aurita), CRPR 1B.1;
singlewhorl burrobrush (Ambrosia monogyra), CRPR 2B.2;
San Diego ambrosia (Ambrosia pumila), CRPR 1B.1 federally listed (Endangered);
San Gabriel manzanita (Arctostaphylos glandulosa ssp. Gabrielensis), CRPR 1B.2;
marsh sandwort (Arenaria paludicola), CRPR 1B.1, federally listed (Endangered), state-listed
(Endangered);
Horn’s milk-vetch (Astragalus hornii var. hornii), CRPR 1B.1;
Nevin’s barberry (Berberis nevinii), CRPR 1B.1, state- and federally listed (Endangered);
thread-leaved brodiaea (Brodiaea filifolia), CRPR 1B.1, state-listed (Endangered), federally listed
(Threatened);
Palmer’s mariposa-lily (Calochortus palmeri var. palmeri), CRPR 1B.2;
La Panza mariposa-lily (Calochortus simulans), CRPR 1B.3;
intermediate mariposa-lily (Calochortus weedii var. intermedius), CRPR 1B.2;
bristly sedge (Carex comosa), CRPR 2B.1;
San Bernardino Mountains owl’s-clover (Castilleja lasiorhyncha), CRPR 1B.2;
smooth tarplant (Centromadia pungens ssp. laevis), CRPR 1B.1;
salt marsh bird’s-beak (Chloropyron maritimum ssp. maritimum), CRPR 1B.2, sate- and federally
listed (Endangered);
Parry’s spineflower (Chorizanthe parryi var. parryi), CRPR 1B.1;
white-bracted spineflower (Chorizanthe xanti var. leucotheca), CRPR 1B.2;
California saw-grass (Cladium californicum), CRPR 2B.2;
Peirson's spring beauty (Claytonia peirsonii ssp. peirsonii), CRPR 1B.2;
Tulare cryptantha (Cryptantha incana), CRPR 1B.3;
Peruvian dodder (Cuscuta obtusiflora var. glandulosa), CRPR 2B.2;
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slender-horned spineflower (Dodecahema leptoceras), CRPR 1B.1, state- and federally listed
(Endangered);
many-stemmed dudleya (Dudleya multicaulis ), CRPR 1B.2;
Santa Ana River woollystar (Eriastrum densifolium ssp. sanctorum), CRPR 1B.1, state- and federally
listed (Endangered);
Johnston's buckwheat (Eriogonum microthecum var. johnstonii), CRPR 1B.3;
hot springs fimbristylis (Fimbristylis thermalis), CRPR 2B.2;
Alvin Meadow bedstraw (Galium californicum ssp. primum), CRPR 1B.2;
Los Angeles sunflower (Helianthus nuttallii ssp. parishii), CRPR 1A;
mesa horkelia (Horkelia cuneata var. puberula), CRPR 1B.1;
California satintail (Imperata brevifolia), CRPR 2B.1;
Coulter’s goldfields (Lasthenia glabrata ssp. coulteri), CRPR 1B.1;
lemon lily (Lilium parryi), CRPR 1B.2;
San Gabriel linanthus (Linanthus concinnus), CRPR 1B.2;
Parish’s desert-thorn (Lycium parishii), CRPR 2B.3;
Parish’s bush-mallow (Malacothamnus parishii), CRPR 1A;
Jokerst's monardella (Monardella australis ssp. Jokerstii), CRPR 1B.1;
Pringle’s monardella (Monardella pringlei), CRPR 1A;
aparejo grass (Muhlenbergia utilis), CRPR 2B.2;
Gambel’s water cress (Nasturtium gambelii), CRPR 1B.1, state-listed (Threatened), federally listed
(Endangered);
prostrate vernal pool navarretia (Navarretia prostrata), CRPR 1B.2;
short-joint beavertail (Opuntia basilaris var. brachyclada), CRPR 1B.2;
woolly mountain-parsley (Oreonana vestita), CRPR 1B.3;
Brand’s star phacelia (Phacelia stellaris), CRPR 1B.1;
white rabbit-tobacco (Pseudognaphalium leucocephalum), CRPR 2B.2;
Parish’s gooseberry (Ribes divaricatum var. parishii), CRPR 1A;
Sanford's arrowhead (Sagittaria sanfordii), CRPR 1B.2;
black bog-rush (Schoenus nigricans), CRPR 2B.2;
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chaparral ragwort (Senecio aphanactis), CRPR 2B.2;
salt spring checkerbloom (Sidalcea neomexicana), CRPR 2B.2;
prairie wedge grass (Sphenopholis obtusata), CRPR 2B.2;
San Bernardino aster (Symphyotrichum defoliatum), CRPR 1B.2;
grey-leaved violet (Viola pinetorum ssp. grisea), CRPR 1B.2; and
western Joshua tree (Yucca brevifolia), CRPR Considered but Rejected; state-listed (Candidate).
4.2.5.3 Special-Status Wildlife
The literature search documented 44 special-status wildlife species in the vicinity of the Project Area. A list
was generated from the results of the literature review and the Project was evaluated for suitable habitat
that could support any of the special-status wildlife species on the list. The Project Area’s disturbed
nature, proximity to commercial development, and the presence of anthropogenic influences on the site
likely preclude many of these species from occurring. A brief natural history and discussion of the special-
status wildlife species that have a moderate potential to occur on the Project Area is provided below. A
table outlining each species, their designations, and potential for occurrence on the Project Area can be
found in Appendix E.
4.2.5.4 Wildlife Species with a Moderate Potential to Occur
Two species were found to have a moderate potential to occur on the Project Area. Although these
species were not present on the Project Area during the biological reconnaissance survey, habitat for
these species occurs onsite, and a known occurrence has been reported in the database, but not within
five miles of the site; or a historic documented observation (more than 20 years old) was recorded within
five miles of the Project Area; or a recently documented observation occurs within five miles of the site
and marginal or limited amounts of habitat occurs onsite.
Crotch Bumble Bee
The Crotch bumble bee (Bombus crotchii) was petitioned for listing under the California ESA in October
2018 (Hatfield et al. 2018); advanced to candidacy in June 2019; challenged in courts and the candidacy
was temporarily stayed beginning in February 2021; and candidacy was recently reinstated in September
2022 (CDFW 2023d). This species is associated with open grassland and scrub habitats and occurs
primarily in California, including the Mediterranean region, Pacific Coast, Western Desert, Great Valley, and
adjacent foothills through most of southwestern California (Williams et al. 2014). Crotch bumble bees
primarily nest underground, and may occupy cavities in a variety of substrates including: thatched grasses,
abandoned rodent burrows or bird nests, brush piles, rock piles, and fallen logs (Alford 1975; Free and
Colin Gasking 1959; Fussell and Corbet 1992; Lye et al. 2012; Sladen 1912; Williams et al. 2014) and have
also been found nesting in manmade structures such as walls, rubble or abandoned furniture (Fussell and
Corbet 1992, Williams et al. 2014). Bumble bee nests are annual and conclude with deaths of the queen,
workers, and drones at the end of the season with only the mated gyne (future queen) surviving the
winter (overwintering) in order to emerge the following spring to start the next year’s colony. Similar to
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other bumble bee species, Crotch bumble bee is a generalist forager and reportedly visits a variety of
flowering plants including Asclepias, Chaenactis, Lupinus, Medicago, Phacelia, and Salvia.
The Project Area contains marginally suitable habitat for this species in the form of suitable burrows
within the Project Area and nectar sources and foraging habitat within and adjacent to the Project Area.
Additionally, numerous recent and historic occurrences are documented in CNDDB (CDFW 2023a). The
most recent occurrences were documented in 2020 (OCC 316, 427, 428, 429, and 430) and over 9 miles
from the Project site. Four occurrences were documented within 5 miles of the Project site; the nearest
was approximately one mile east of the Project site in 1938 (OCC 184). Due to the presence of potential
foraging, nesting, and overwintering habitat and recent CNDDB records within 5 miles of the Project site,
this species was determined to have moderate potential for occurrence.
Burrowing Owl
Burrowing owl (Athene cunicularia) is a CDFW SSC. Burrowing owls historically occurred throughout much
of California and the western U.S.; however, many former California populations have been extirpated.
Burrowing owls typically inhabit open habitats, primarily grasslands and deserts. Burrowing owls require
burrows for roosting and nesting cover. Although they often nest in abandoned California ground squirrel
(Otospermophilus beecheyi) burrows, they will also use other small mammal burrows, pipes, culverts, and
nest boxes, particularly where burrows are scarce (Zeiner et al. 1990).
The Project Area provides marginally suitable due to the presence of friable soils for burrowing and areas
of low-growing vegetation. Although no burrowing owls were observed during the biological survey, due
to the mobile nature of the burrowing owl, it is possible for burrowing owl to be move into the site due to
the presence suitable habitat. Numerous recent and historic occurrences are documented in CNDDB
(CDFW 2023a). The most recent occurrence was documented in 2016 (OCC 561) approximately 9 miles
west of the Project site. Six occurrences were documented within 5 miles of the Project site; the nearest
were approximately one mile from the Project site in 2006 (OCC 927) and 2007 (OCC 1793) north and
northeast of the Project site, respectively. Based on the presence of marginally suitable burrowing habitat
and the recent records of the species within five miles of the Project Area, this species has a moderate
potential to occur on the Project Area.
4.2.5.5 Wildlife with a Low Potential to Occur
Seven species were determined to have a low potential to occur within the Project Area due to limited or
marginal habitat for the species occurs within the Project Area and a recently documented observation
occurs within the database search, but not within five miles of the area; a historic documented
observation (more than 20 years old) was recorded within five miles of the Project Area; or suitable habitat
strongly associated with the species occurs on site, but no records or only historic records were found
within the database search.
western spadefoot (Spea hammondii), CDFW SSC;
California glossy snake (Arizona elegans occidentalis) CDFW SSC;
coastal whiptail (Aspidoscelis tigris stejnegeri), CDFW SSC;
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coast horned lizard (Phrynosoma blainvillii) CDFW SSC;
northwestern San Diego pocket mouse (Chaetodipus fallax fallax), CDFW SSC;
western yellow bat (Lasiurus xanthinus), CDFW SSC; and
San Diego desert woodrat (Neotoma lepida intermedia), CDFW SSC.
4.2.5.6 Wildlife Species Presumed Absent
A total of 35 species were presumed absent. These species were not present at the site during the
biological reconnaissance survey and the habitat present on the Project Area was not suitable. For some
species, there were historic or recent sightings near the site; however, due to the lack of suitable habitat
within the Project Area, these species are presumed absent. The species presumed absent are listed below
and a table outlining each species, their designations, and potential for occurrence on the Project Area
can be found in Appendix E.
quino checkerspot butterfly (Euphydryas editha quino), federally listed (Endangered);
Delhi Sands flower-loving fly (Rhaphiomidas terminatus abdominalis), federally listed
(Endangered);
Riverside fairy shrimp (Streptocephalus woottoni), federally listed (Endangered);
Santa Ana sucker (Catostomus santaanae), federally listed (Threatened);
arroyo chub (Gila orcutti), CDFW SSC;
steelhead - southern California Distinct Population Segment (Oncorhynchus mykiss irideus pop.
10), federally listed (Endangered);
Santa Ana speckled dace (Rhinichthys osculus ssp. 8), CDFW SSC;
southern mountain yellow-legged frog (Rana muscosa), state- and federally listed (Endangered);
southern California legless lizard (Anniella stebbinsi) CDFW SSC;
southern rubber boa (Charina umbratica), state-listed (Threatened);
San Diego banded gecko (Coleonyx variegatus abbotti), CDFW SSC;
red-diamond rattlesnake (Crotalus ruber), CDFW SSC;
western pond turtle (Emys marmorata), CDFW SSC;
two striped gartersnake (Thamnophis hammondii), CDFW SSC;
tricolored blackbird (Agelaius tricolor), state-listed (Threatened), CDFW SSC;
Swainson’s hawk (Buteo swainsoni) state-listed (Threatened);
western yellow-billed cuckoo (Coccyzus americanus occidentalis), state-listed (Endangered),
federally listed (Threatened);
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yellow rail (Coturnicops noveboracensis), CDFW SSC;
southwestern willow flycatcher (Empidonax traillii extimus), state- and federally listed
(Endangered);
yellow-breasted chat (Icteria virens), CDFW SSC;
loggerhead shrike (Lanius ludovicianus), CDFW SSC;
California black rail (Laterallus jamaicensis coturniculus), state-listed (Threatened), CDFW Fully
Protected;
coastal California gnatcatcher (Polioptila californica californica), federally listed (Threatened),
CDFW SSC;
yellow warbler (Setophaga petechia), CDFW SSC;
least Bell's vireo (Vireo bellii pusillus), state- and federally listed (Endangered);
pallid San Diego pocket mouse (Chaetodipus fallax pallidus), CDFW SSC;
San Bernardino kangaroo rat (Dipodomys merriami parvus), state-listed (Candidate), CDFW SSC,
federally listed (Endangered);
Stephens’ kangaroo rat (Dipodomys stephensi), state- and federally listed (Threatened);
western mastiff bat (Eumops perotis californicus), CDFW SSC;
San Bernardino flying squirrel (Glaucomys oregonensis californicus), CDFW SSC;
pocketed free-tailed bat (Nyctinomops femorosaccus), CDFW SSC;
southern grasshopper mouse (Onychomys torridus ramona), CDFW SSC;
desert bighorn sheep (Ovis canadensis nelsoni), state Fully Protected;
Los Angeles pocket mouse (Perognathus longimembris brevinasus), CDFW SSC; and
American badger (Taxidea taxus), CDFW SSC.
4.2.6 Raptors and Migratory Birds
Potential nesting habitat for migratory birds and raptors protected by the MBTA and California Fish and
Game Code was present in and adjacent to the Project Area. Suitable habitat is present in the mature and
emergent tree-of heaven shrubs as well as the eucalyptus and ornamental trees adjacent to the Project
Area. Suitable nesting habitat for ground-nesting bird species, such as mourning doves, was also present
on the Project Area. Therefore, nesting birds could use the Project Area during the nesting bird season
(typically February 1 through August 31).
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4.2.7 Wildlife Movement Corridors, Linkages, and Significant Ecological Areas
The concept of habitat corridors addresses the linkage between large blocks of habitat that allow the safe
movement of mammals and other wildlife species from one habitat area to another. The definition of a
corridor varies, but corridors may include such areas as greenbelts, refuge systems, underpasses, and
biogeographic land bridges. In general, a corridor is described as a linear habitat embedded in a dissimilar
matrix that connects two or more large blocks of habitat. Wildlife movement corridors are critical for the
survivorship of ecological systems for several reasons. Corridors can connect water, food, and cover
sources, spatially linking these three resources with wildlife in different areas. In addition, wildlife
movement between habitat areas provides for the potential of genetic exchange between wildlife species
populations, thereby maintaining genetic variability and adaptability to maximize the success of wildlife
responses to changing environmental conditions. This is especially critical for small populations subject to
loss of variability from genetic drift and effects of inbreeding. The nature of corridor usage and wildlife
movement patterns vary greatly among species.
The Project Area was assessed for its ability to function as a wildlife corridor. The Project Area is disturbed
and surrounded by paved roads and development. Although the Project Area is undeveloped, it is
surrounded by development and isolated from large, contiguous blocks of native habitat. Wildlife could
pass through the site; however, movement is likely limited due to few openings in the chain-link fencing
that surrounds the Project Area. The Project Area is bordered by Barbee Street to the north, N Maple
Avenue to the east, Foothill Boulevard to the south, and commercial development to the west. These
features further isolate the habitat that is present within the Project Area from its surrounding area and
provide potential barriers to wildlife movement. Additionally, the lack of consistent vegetative cover within
the Project Area, the urban nature of the site, and the high density of nonnative weedy vegetation across
the site would likely deter wildlife from using the Project Area for movement opportunities due to lack of
suitable cover.
The Project Area was also assessed for its ability to function as a significant ecological area, such as a
native wildlife nursery site. Suitable nesting habitat for bird species was documented within the Project
Area. However, due to the level of disturbance within and adjacent to the Project Area, nursery site habitat
for bird species (e.g., heron rookery) is not anticipated to occur. Suitable bat roosting habitat was
observed within the Project Area and there is potential for the structures and trees observed to serve as
maternity roost sites during the maternity season (March 1 through August 31; Figure 4). Maternity roosts
are considered protected as native wildlife nursery sites under CEQA.
5.0 IMPACT ANALYSIS
5.1 Special-Status Species
The Project Area consists of disturbed land and is largely devoid of native vegetation. Vegetation
communities onsite were classified as Disturbed. This is a land cover type rather than a vegetation
community. Disturbances observed on the site were mainly associated with nonnative species and
anthropogenic factors (e.g., abandoned portable building and shipping containers, asphalt, and signs of
previous disking). The literature review and database searches identified 54 special-status plant species
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and 44 special-status wildlife species that have been documented in the vicinity of the Project Area and
have potential to occur within the Project Area.
All of the 54 special-status plant species identified in the literature review were all presumed absent from
the Project Area due the isolated nature of the Project site, the fact that it is surrounded by development,
the Project site’s long history of disturbance, the absence of suitable habitat (including elevation, soils,
and vegetation community associations), and the lack of mobility for plant species, or because the Project
is located outside of the known range for the species. No impacts to special-status plant species are
expected to occur with the development of the Project.
Of the 44 special-status wildlife species identified in the literature review and database searches, two have
a moderate potential to occur, seven have a low potential to occur, and thirty-five are presumed absent.
Those presumed absent are due to a lack of suitable habitat within the Project Area, the Project Area
being outside the known range for the species, or because there are no recent or historic occurrences
within five miles of the Project Area.
Crotch bumble bee is a Candidate for state listing and therefore afforded all the protections as though it
were listed under the California ESA. Due to the presence of suitable friable soils, suitable burrow habitat,
suitable burrows (i.e., Botta’s pocket gopher burrows), and nectar sources within and adjacent to the
Project Area, it was determined that this species has a moderate potential to occur on the Project Area.
Numerous recent and historic occurrences were documented in the CNDDB; however, only four were
within five miles of the Project Area (CDFW 2023a). If Crotch bumble bee is found to be using or nesting
in the Project Area prior to the start of construction, impacts to Crotch bumble bee may occur in the form
of direct mortality of individuals, direct mortality to an active nesting colony, direct mortality to an
overwintering individual, conversion of foraging habitat, or permanent loss of foraging resources. Because
this species is a generalist forager that chooses nest and overwintering locations on an annual basis,
temporary and permanent loss of habitat would not be expected to contribute substantially to the overall
decline of this species unless an active nest or overwintering gyne (future queen) were to be impacted.
Impacts to Crotch bumble bee would be less than significant with the implementation of Mitigation
Measure BIO-1.
Burrowing owls are a CDFW SSC species and are also protected by the MBTA and California Fish and
Game Code. Due to the presence of suitable friable soils, suitable burrow habitat, it was determined that
this species has a moderate potential to occur on the Project Area. During the survey, suitable habitat was
observed in the Project Area in the form of friable soils and low-growing ruderal vegetation. The literature
review and database search identified numerous recent and historic occurrences in CNDDB (CDFW
2023b). The most recent occurrence was documented in 2016 (OCC 561) approximately 9 miles west of
the Project Area. Six occurrences were documented within 5 miles of the Project Area; the nearest were
documented approximately one mile from the Project Area in 2006 (OCC 927) and 2007 (OCC 1793) north
and northeast of the Project Area, respectively. The Project Area did not appear to have been currently or
recently used by burrowing owls at the time of the survey (i.e., no previous sign [feathers, burrows, pellets,
whitewash] were observed). However, the species is mobile and due to the presence of suitable habitat,
burrowing owl could take up residence on the Project Area at prior to the start of Project activities. If
burrowing owls are present on the Project Area prior to construction, direct impacts in the form of ground
disturbance, vegetation removal, habitat loss, and mortality and indirect impacts to these species could
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occur in the form of increased human activity, noise, dust, nighttime lighting, and ground vibrations may
occur. Impacts to burrowing owl would be less than significant with the implementation of Mitigation
Measure BIO-2 and BIO-3. The Mitigation Measures for the Proposed Project are discussed in Section 6.0.
Seven special-status wildlife species were determined to have a low potential to occur within the Project
Area: western spadefoot, California glossy snake, coastal whiptail, coast horned lizard, northwestern San
Diego pocket mouse, western yellow bat, and San Diego desert woodrat. All are CDFW SSC. If present,
direct impacts to these species could occur in the form of injury or mortality due to vehicle or equipment
strike or entombment inside of burrows that are graded over during construction, and loss of habitat. If
present, indirect impacts to these species could occur in the form of increased human activity, noise, dust,
nighttime lighting, and ground vibrations. These species have a low probability of occurring in the Project
Area, and if present, these species are not expected to occur at high densities due to the disturbed and
isolated nature of the site. The loss of the SSC individuals (except western yellow bat), if present, in the
Project Area would not be expected to contribute to the decline in regional populations and would
therefore not be considered a significant impact under CEQA.
Three bat species were documented in the literature review however only one, western yellow bat, was
determined to have a potential to occur within the Project Area. Western mastiff bat and pocketed free-
tailed bat were presumed absent due to a lack of suitable roosting habitat (i.e., cliffs, rock crevices) within
or adjacent to the Project Area. Due to the presence of palm trees adjacent to the Project Area with intact
thatch skirts and suitable foraging habitat within and adjacent to the Project Area, western yellow bat has
a low potential to occur. Additionally, the abandoned portable structure within the Project Area offers
potential access into the interior. Although no sign of bat use was present at the time of the
reconnaissance survey, if bats are found to be roosting within the Project Area, direct impacts can occur in
the form of mortality or roost abandonment. Roost abandonment during the maternity season could
result in the mortality of flightless young, which could be considered a violation of California Fish and
Game Code Section 4150 as well as a significant impact to a native wildlife nursery site under CEQA.
Additionally, activities conducted outside of the maternity season that cause bats to leave a roost during
daytime hours pose a mortality risk to individual bats. Indirect impacts from Project activities may also
occur in the form of increased human activity, noise, dust, nighttime lighting, and ground vibrations.
Impacts to roosting bats would be less than significant with the implementation of Mitigation Measures
BIO-4 and 5.
The remaining 35 special-status wildlife species are presumed absent from occurring on or adjacent to the
site due to the lack of suitable habitat; proximity to the surrounding residential, commercial, and industrial
development; and the presence of anthropogenic disturbances associated with the commercial and
industrial development surrounding the site. No significant impacts to the 35 special-status wildlife
species that are presumed absent are anticipated to result from the development of this Project.
The mature and emergent shrubs of tree-of-heaven observed in the Project Area as well as the trees
immediately adjacent to the Project Area could provide nesting habitat for nesting birds and raptors
protected by the MBTA and California Fish and Game Code. Furthermore, the Project Area could provide
nesting habitat for ground-nesting bird species. If construction of the proposed Project occurs during the
bird breeding season (typically February 1 through August 31), ground-disturbing construction activities
could directly affect birds protected by the MBTA and their nests through the removal of habitat on the
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Project Area, and indirectly through increased noise, vibrations, and increased human activity. Impacts to
nesting birds would be less than significant with the implementation of Mitigation Measure BIO-3.
5.2 Sensitive Natural Communities
The Project Area consists of disturbed land that supports mostly nonnative and weedy vegetation species.
The Project Area does not contain any riparian habitat or other sensitive natural communities that would
need to be preserved. No impacts to sensitive natural communities are anticipated to result from the
development of this Project.
5.3 State and Federally Protected Wetlands and Waters of the United
States
According to the results of the preliminary aquatic resources delineation, no state or federally protected
wetlands or Waters of the U.S. were identified on the Project Area, therefore no impacts to state or
federally protected wetlands are expected to occur.
5.4 Wildlife Corridors and Nursery Sites
The Project Area is located within and adjacent to areas containing existing disturbances (e.g., paved
roads and residential and commercial development). The Project Area is disturbed and contains
insufficient vegetative cover to facilitate wildlife movement and it is isolated from large, contiguous blocks
of native habitat. No migratory wildlife corridors were identified within the Project Area. No impacts to
these resources are expected to occur during the development of the Project Area.
Suitable bat roosting habitat was identified within and adjacent to the Project Area in the form of fan
palms and an abandoned portable building with potential access into the interior through cracked panels
and holes. Should bats be found roosting in these features during the bat maternity season (March 1
through August 31), these roosts would be considered native wildlife nursery sites and impacts would
need to be mitigated for under CEQA. Impacts to maternity bat roosts would be less than significant with
the implementation of Mitigation Measures BIO-4 and 5.
6.0 RECOMMENDATIONS
The following mitigation measures are recommended prior to Project implementation:
BIO-1: Preconstruction Surveys for Crotch Bumble Bee: If the Crotch bumble bee is no longer a
Candidate or formally Listed species under the California ESA at the time ground-disturbing
activities occur, then no additional protection measures are proposed for the species.
If the Crotch bumble bee is legally protected under the California ESA as a Candidate or
Listed species at the time ground-disturbing activities are scheduled to begin,
preconstruction surveys shall be conducted in accordance with CDFW’s Survey
Considerations for California ESA Candidate Bumble Bee Species (CDFW 2023d) the season
immediately prior to project implementation. A minimum of three Crotch bumble bee
preconstruction surveys shall be conducted at two-to-four-week intervals during the colony
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active period (April through August) when Crotch bumble bees are most likely to be
detected. Non-lethal, photo voucher surveys shall be completed by a biologist who holds a
Memorandum of Understanding to capture and handle Crotch bumble bee (if nesting and
chilling protocol is to be utilized) or by a CDFW approved biologist experienced in
identifying native bumble bee species (if surveys are restricted to visual surveys that will
provide high-resolution photo documentation for species verification). The surveyor shall
walk through all areas of suitable habitat focusing on areas with floral resources. Surveys
shall be completed at a minimum of one person-hour of searching per three acres of
suitable habitat during suitable weather conditions (sustained winds less than 8 miles per
hour (mph), mostly sunny to full sun, temperatures between 65 and 90°F) at an appropriate
time of day for detection (at least 1 hour after sunrise and at least 2 hours before sunset,
though ideally between 9:00 a.m. and 1:00 p.m.).
If Crotch bumble bees are detected, CDFW shall be notified by the designated biologist as
further coordination may be required to avoid or mitigate certain impacts. At a minimum,
two nesting surveys shall be conducted with focus on detecting active nesting colonies
within one week and 24-hours immediately prior to ground disturbing activities that are
scheduled to occur during the flight season (February through October). If an active Crotch
bumble bee nest is detected, an appropriate no disturbance buffer zone (including foraging
resources and flight corridors essential for supporting the colony) shall be established
around the nest to reduce the risk of disturbance or accidental take and the designated
biologist shall coordinate with CDFW to determine if an Incidental Take Permit under Section
2081 of the California ESA will be required. Nest avoidance buffers may be removed at the
completion of the flight season and/or once the qualified biologist deems the nesting colony
is no longer active and CDFW has provided concurrence of that determination. If no nests
are found but the species is present, a full-time qualified biological monitor shall be present
during vegetation or ground disturbing activities that are scheduled to occur during the
queen flight period (February through March), colony active period (March through
September), and/or gyne flight period (September through October). Because bumble bees
move nest sites each year, two preconstruction nesting surveys shall be required during each
subsequent year of construction, regardless of the previous year’s findings, whenever
vegetation and ground disturbing activities are scheduled to occur during the flight season if
nesting and foraging habitat is still present or has re-established.
BIO-2: Preconstruction Surveys for Burrowing Owl: Preconstruction surveys for burrowing owl
should be conducted. The surveys should follow the methods described in the CDFW’s Staff
Report on Burrowing Owl Mitigation (CDFG 2012). Two surveys should be conducted, with
the first survey being scheduled between 30 and 14 days before initial ground disturbance
(grading, grubbing, and construction), and the second survey being conducted no more than
24 hours prior to initial ground disturbance. If burrowing owls and/or suitable burrowing owl
burrows are identified on the Project Area during the survey, the Project should consult with
CDFW and follow the methods listed in the CDFW’s Staff Report on Burrowing Owl
Mitigation (CDFG 2012) for avoidance and/or passive relocation. If burrowing owls or
suitable burrowing owl burrows with sign (e.g., whitewash, pellets, feathers, prey remains) are
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identified on the Project Area during the survey, these features must be completely avoided.
If impacts to those features are unavoidable then the Project proponent must also develop
an owl mitigation plan in consultation with CDFW. Mitigation methods may include passive
relocation conducted outside of the owl breeding season (between September 1 and
February 28). If an active owl burrow is identified, and construction is to proceed, then a
qualified biologist (with two or more years of burrowing owl experience) can establish an
appropriate disturbance-limit buffer around the burrow using flagging or staking.
Construction activities shall not occur within any buffer zones until the burrow is deemed
inactive by the qualified biologist.
BIO-3: Preconstruction Survey for Nesting Birds: If construction or other Project activities are
scheduled to occur during the nesting bird season (generally February 1 through August 31),
a preconstruction nesting bird survey shall be conducted by a qualified avian biologist to
ensure that active bird nests will not be disturbed or destroyed. The survey shall be
completed no more than three days prior to initial ground disturbance. The nesting bird
survey shall include the Project Area and adjacent areas where Project activities have the
potential to affect active nests, either directly or indirectly, due to construction activity, noise,
human activity, or ground disturbance.
If an active nest is identified, a qualified avian biologist shall establish an appropriately sized
non-disturbance buffer around the nest using flagging or staking. Construction activities
shall not occur within any non-disturbance buffer zones until the nest is deemed inactive by
the qualified avian biologist. If initial ground-disturbing activities are scheduled to occur
during the nesting bird season, then a biological monitor shall be present during all
vegetation removal activities to ensure no impacts to nesting birds occur.
The implementation of this mitigation measure, and any additional avoidance and
minimization measures, may need to be implemented to reduce or eliminate potential
Project-related impacts to special-status bird species. Should any special-status species be
identified during the preconstruction survey and Project-related impacts are unavoidable,
consultation with the appropriate agency (e.g., USFWS, CDFW) may need to be undertaken
to develop suitable avoidance and minimization measures.
BIO- 4: Preconstruction Survey for Bat Species. Within 14 days prior to the start of ground-
disturbing activities a qualified bat biologist will conduct a follow-up bat survey at the
abandoned portable structure to determine if any change in bat use at the structure has
occurred since the initial bat habitat assessment. If suitable evidence of bat occupation is
present, the biologist will conduct follow-up nighttime emergence surveys to determine the
species present and to evaluate the size and significance of the colony. If roosting bats are
determined to be present, the qualified bat biologist will prepare a Bat Management Plan
that will outline project-specific protective measures to avoid and minimize impacts to
roosting bats during project construction.
BIO-5: Tree Avoidance and Removal Process. If trees are scheduled to be removed (e.g.,
relocating)/modified (i.e., trimming) that were determined to be suitable for bat roosting,
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these activities should be scheduled during seasonal periods of bat activity - September 1 to
October 15 or when evening temperatures are not below 45 degrees Fahrenheit and rain is
not over ½ inch in 24 hours; or between March 1-April 15 with the same parameters.
1. If tree removal/modification must occur during the maternity season, a qualified bat
biologist shall conduct a focused emergence survey(s) of the tree(s) within 48 hours of
scheduled work. If a maternity roost is located, whether solitary or colonial, that roost
will remain undisturbed until after the maternity season or until a qualified biological
monitor has determined the roost is no longer active.
2. If trees with suitable bat roosting habitat are scheduled for removal or relocation outside
of the maternity season, tree removal during the weather parameters described above
using the two-step method should be conducted:
i. As much as feasible, vegetation and trees within the area that are not suitable for
roosting bats will be removed first to provide a disturbance that might reduce the
likelihood of bats using the habitat.
ii. Two-step tree removal will occur over two consecutive days under the supervision of
a qualified bat biologist. On Day 1, small branches and small limbs containing no
cavity, crevice or exfoliating bark habitat on habitat trees (or outer fronds in the case
of palm trees), as identified by a qualified bat biologist are removed first, using
chainsaws only (i.e., no dozers, backhoes). The following day (Day 2), the remainder
of the tree is to be felled/removed. (The intention of this method is to disturb the
tree with noise and vibration and branch removal on Day 1. This should cause any
potentially present day-roosting bats to abandon the roost tree after they emerge
for nighttime foraging. Removing the tree quickly the next consecutive day should
avoid reoccupation of the tree by bats).
6.1 Additional Recommendations
The following best management practices are not mitigation measures pursuant to CEQA but are
recommended to further reduce impacts to species that have potential to occur on the property:
Confine all work activities to a predetermined work area.
To prevent inadvertent entrapment of wildlife during the construction phase of the Project, all
excavated, steep-walled holes or trenches more than 2 feet deep should be covered at the close
of each working day by plywood or similar materials. If the trenches cannot be closed, one or
more escape ramps constructed of earthen fill or wooden planks shall be installed. Before such
holes or trenches are filled, they should be thoroughly inspected for trapped animals.
Wildlife are often attracted to burrow- or den-like structures such as pipes and may enter stored
pipes and become trapped or injured. To prevent wildlife use of these structures, all construction
pipes, culverts, or similar structures with a diameter of 4 inches or greater should be capped while
stored onsite.
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Diversified Pacific –8.38-Acre Maple Property Project 31 November2023
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All food-related trash items such as wrappers, cans, bottles, and food scraps should be disposed
of in securely closed containers and removed at least once a week fromthe construction or
Project Area.
Use of rodenticides and herbicides ontheProject Area should be restricted. This is necessary to
prevent primary or secondary poisoning of wildlife, and the depletion of prey populations on
which they depend. All uses of such compounds should observe label and other restrictions
mandated by the U.S. Environmental Protection Agency, California Department of Food and
Agriculture, and other state and federal legislation. If rodent control must be conducted, zinc
phosphide should be used because it has a proven lower risk to predatory wildlife.
7.0 CERTIFICATION
I hereby certify that the statements furnished above and in the attached exhibits present the data and
information required for this biological evaluation, and that the facts, statements, and information
presented are true and correct to the best of my knowledge and belief.Field work conducted for this
assessment was performed by me or under my direct supervision. I certify that I have not signed a non-
disclosure or consultant confidentiality agreement with the Projectapplicant or the applicant’s
representative and that I have no financial interest in the Project.
SIGNED:
DATE:
11/17/2023
Senior Wildlife Biologist
ECORP Consulting, Inc.
Biological Technical Report
ECORP Consulting, Inc.
Diversified Pacific – 8.38-Acre Maple Property Project 32 November 2023
2023-169
8.0 LITERATURE CITED
Alford, D. V. 1975. Bumblebees. Davis-Poynter, London.
Baldwin, B.G., G.H. Goldman, D.J. Keil, R. Patterson, T.J. Rosatti, and D.H. Wilken, Eds. 2012. The Jepson
Manual; Vascular Plants of California, Second Edition. Berkeley, CA, University of California Press.
Bradley, R.D., L.K. Ammerman, R.J. Baker, L.C. Bradley, J.A Cook, R.C. Dowler, C. Jones, D.J Schmidly, F.B.
Stangl, Jr., R.A. Van Den Bussche, B. Wursig. 2014. Revised Checklist of North American Mammals
North of Mexico. Museum of Texas Tech University.
Calflora. 2023. Information on California plants for education, research and conservation. [Web
application]. Berkeley, California: The Calflora Database [a non-profit organization]. Available at:
http://www.calflora.org/.
California Department of Fish and Game (CDFG). 2012. Staff Report on Burrowing Owl Mitigation. State of
California, Natural Resources Agency, Department of Fish and Wildlife.
_____. 1984. California Endangered Species Act. Fish and Game Code Section 2050-2085.
California Department of Fish and Wildlife (CDFW). 2023a. RareFind California Department of Fish and
Game Natural Diversity Database (CNDDB). California. Sacramento, CA, California Department of
Fish and Wildlife, Biogeographic Data Branch. Available at:
https://wildlife.ca.gov/Data/CNDDB/Maps-and-Data. Accessed September 2023.
_____. 2023b. State and Federally Listed Endangered and Threatened Animals of California. Sacramento
(CA): State of California, Natural Resources Agency, Department of Fish and Wildlife. Available at:
https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=109405. Accessed September 2023.
_____. 2023c. Special Animals List. Sacramento (CA): State of California, Natural Resources Agency,
Department of Fish and Game. Available at:
https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=109406. Accessed September 2023.
_____. 2023d. Survey and Considerations for California Endangered Species Act (California ESA) Candidate
Bumble Bee Species. State of California, Natural Resources Agency, Department of Fish and
Wildlife. Published June 2023.
_____. 2021. Lake and Streambed Alteration Program. Available at:
https://wildlife.ca.gov/Conservation/Environmental-Review/LSA.
California Native Plant Society (CNPS), Rare Plant Program. 2023. Inventory of Rare and Endangered Plants
of California (online edition, v9-01 1.0). California Native Plant Society, Sacramento, CA, Available
at: http://www.rareplants.cnps.org. Accessed September 2023.
Chesser, R. T., S. M. Billerman, K. J. Burns, C. Cicero, J. L. Dunn, B. E. Hernández-Baños, R. A. Jiménez, A. W.
Kratter, N. A. Mason, P. C. Rasmussen, J. V. Remsen, Jr., and K. Winker. 2023. Check-list of North
American Birds (online). American Ornithological Society.
https://checklist.americanornithology.org/taxa/.
Biological Technical Report
ECORP Consulting, Inc.
Diversified Pacific – 8.38-Acre Maple Property Project 33 November 2023
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County of San Bernardino. 2012. Countywide – All Biotic Resources Map. Available at:
https://www.sbcounty.gov/Uploads/lus/GeneralPlan/cnty_all_biotic_resources_map_final.pdf.
Accessed September 2023.
Free, J. B., and Colin Gasking Butler. 1959. Bumblebees. Collins.
Fussell, M., and S.A. Corbet. 1992. Flower Usage by Bumble-Bees: A Basis for Forage Plant Management.
Source: Journal of Applied Ecology. Volume 29.
Hatfield, R., S. Jepsen, S.F. Jordan, M. Blackburn, A. Code. 2018. Petition to List Four Species of Bumble
Bees as Endangered Species under the California Endangered Species Act, Submitted by The
Xerces Society for Invertebrate Conservation, Defenders of Wildlife, and Center for Food Safety.
Lye, G.C., J.L. Osborne, K.J. Park, and D. Goulson. 2012. Using citizen science to monitor Bombus
populations in the UK; nesting ecology for and relative abundance in the urban environment.
Journal of Insect Conservation: 16:697-707.
Natural Resources Conservation Service (NRCS). 2023a. "Web Soil Survey.” Available at:
https://websoilsurvey.sc.egov.usda.gov/App/WebSoilSurvey.aspx. Accessed September 2023.
_____. Soil Data Access Hydric Soils List. 2023b. Available at:
https://www.nrcs.usda.gov/publications/query-by-state.html.
Sawyer, J.O., T. Keeler-Wolf, and J.M. Evens. 2009. A Manual of California Vegetation, 2nd ed. California
Native Plant Society, Sacramento, CA. Sibley, D. A.
Skinner, M.W., and B.M. Pavlik, eds. 1994. California Native Plant Society's inventory of rare and
endangered vascular plants of California. Fifth edition. Spec. Publ. No. 1, California Native Plant
Society, Sacramento, CA, 338 pp.
Sladen, F.W. Lambert 1912. The Humble-bee: its Life-history and how to Domesticate it. Macmillan and
Company, limited.
Society for the Study of Amphibians and Reptiles. 2017. Scientific and Standard English Names of
Amphibians and Reptiles of North American North of Mexico, With Comments Regarding
Confidence in our Understanding. Eighth Edition. Committee on Standard English and Scientific
Names.
State Water Resources Control Board. 2021. State Wetland Definition and Procedures for Discharges of
Dredged or Fill Material to Waters of the State. Retrieved from:
https://www.waterboards.ca.gov/water_issues/programs/cwa401/wrapp.html.
U.S. Fish and Wildlife Service (USFWS). 2023a. National Wetlands Inventory Mapper. Available at:
https://fwsprimary.wim.usgs.gov/wetlands/apps/wetlands-mapper/.
_____. Critical Habitat Mapper. 2023b. Available at:
https://fws.maps.arcgis.com/home/webmap/viewer.html?webmap=9d8de5e265ad4fe09893cf75b
8dbfb77.
_____. 1918. Migratory Bird Treaty Act. Section 16 of the U.S. Code (703-712), as amended 1989.
Biological Technical Report
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Diversified Pacific – 8.38-Acre Maple Property Project 34 November 2023
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Williams, P.H., R.W. Thorp, L.L. Richardson, and S.R. Colla. 2014. The Bumble Bees of North America: An
Identification Guide. Princeton University Press, Princeton.
Zeiner D.C., W.F. Laudenslayer Jr., K.E. Mayer, and M. White, editors. 1990. California’s Wildlife. Volume II,
Birds. Sacramento (CA): State of California, the Resources Agency, Department of Fish and
Wildlife.
LIST OF APPENDICES
Appendix A – Representative Site Photographs
Appendix B – Plant Species Observed
Appendix C – Wildlife Species Observed
Appendix D – Special-Status Plant Species Potential for Occurrence
Appendix E – Special-Status Wildlife Species Potential for Occurrence
APPENDIX A
Representative Site Photographs
Appendix A – Representative Site Photographs
ECORP Consulting, Inc.
Diversified Pacific – 8.5-Acre Maple Property Project A-1 November 2023
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Photo 1. East Side of the Project Site, facing west.
Photo 2. Middle of the North Side of the Project Site, facing south.
Appendix A – Representative Site Photographs
ECORP Consulting, Inc.
Diversified Pacific – 8.5-Acre Maple Property Project A-2 November 2023
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Photo 3. Middle of the North Side of the Project Site, facing west.
Photo 4. Middle of the Project Site, facing southeast.
Appendix A – Representative Site Photographs
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Diversified Pacific – 8.5-Acre Maple Property Project A-3 November 2023
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Photo 5. Suitable Nesting Bird and Roosting Bat Habitat Immediately Adjacent to the
Southwest Corner of the Project Site, facing southwest.
Photo 6. Portable Building and Shipping Containers near the North Side of the Project
Site, facing northwest.
Appendix A – Representative Site Photographs
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Diversified Pacific – 8.5-Acre Maple Property Project A-4 November 2023
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Photo 7. Hole on Exterior of Portable Building—Potential Entrance into the Interior.
Potential Suitable Bat Habitat.
Photo 8. Southern End of the Project Site, facing north.
Appendix A – Representative Site Photographs
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Diversified Pacific – 8.5-Acre Maple Property Project A-5 November 2023
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Photo 9. Asphalt Present in the Southern Portion of the Project Site, facing south.
APPENDIX B
Plant Species Observed
Appendix B – Plant Species Observed (October 31, 2023)
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Diversified Pacific – 8.5-Acre Maple Property Project B-1 November 2023
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Scientific Name Common Name
VASCULAR PLANTS
GYMNOSPERMS
Cupressaceae Cypress Family
Cupressus sp. cypress species
ANGIOSPERMS (DICOTS)
Asteraceae Sunflower Family
Ambrosia sp. ragweed species
Erigeron sp. horseweed species
Heterotheca grandiflora telegraph weed
Stephanomeria sp. wirelettuce species
Verbesina encelioides* cowpen daisy
Chenopodiaceae Goosefoot Family
Salsola tragus* Russian thistle
Euphorbiaceae Spurge Family
Croton setiger turkey-mullein
Geraniaceae Geranium Family
Erodium cicutarium* redstem filaree
Malvaceae Mallow Family
Malva parviflora* cheeseweed mallow
Myrtaceae Myrtle Family
Eucalyptus sp.* eucalyptus species
Oleaceae Olive Family
Olea europaea* common olive
Onagraceae Evening Primrose Family
Oenothera laciniata* cutleaf evening primrose
Simaroubaceae Quassia Family
Ailanthus altissima tree-of-heaven
Solanaceae Nightshade Family
Datura wrightii jimson weed
Zygophyllaceae Caltrop Family
Tribulus terrestris* puncture vine
ANGIOSPERMS (MONOCOTS)
Arecaceae Palm Family
Washingtonia sp. fan palm species
Poaceae Grass Family
Avena sp.* wild oat
Digitaria sanguinalis* hairy crabgrass
*Nonnative species
APPENDIX C
Wildlife Species Observed
Appendix C – Wildlife Species Observed (November 1, 2023)
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Diversified Pacific – 8.5-Acre Maple Property Project C-1 November 2023
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SCIENTIFIC NAME
COMMON NAME
BIRDS
Columbidae Pigeons and Doves
Columba liva* Rock pigeon
Zenaida macroura Mourning dove
Corvidae Crows, Jays, and Magpies
Corvus corax Common raven
Mimidae Mockingbirds and Thrashers
Mimus polyglottos Northern mockingbird
Sturnidae Starlings
Sturnus vulgaris* European starling
Trochilidae Hummingbirds
Calypte anna Anna’s hummingbird
Tyrannidae Tyrant Flycatchers
Sayornis nigricans Black phoebe
MAMMALS
Canidae Dogs, Wolves, and Foxes
Canis latrans Coyote (scat)
Rodentia Rodents
Thomomys bottae Bottas’s pocket gopher (burrows)
*Nonnative s ecies
APPENDIX D
Special-Status Plant Species Potential for Occurrence
Appendix D – Plant Potential for Occurrence
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Scientific
Name
Common
Name
Status
Bloom Period
& Elevation
(meters)
Habitat Requirements Potential for
Occurrence
Abronia villosa
var. aurita
chaparral sand-
verbena
Fed:
Ca:
CRPR:
none
none
1B.1
(Jan) Mar- Sep
75-1,600
Occurs in sandy soils
within chaparral, coastal
scrub, and desert dunes.
Threatened by nonnative
plants, changes to fire
regimes, development,
and vehicles and road
maintenances.
Presumed Absent. One
historic occurrence is
documented in CNDDB;
OCC 26 was documented in
1934 over 17 miles
southwest of the Project
site. No suitable chaparral,
coastal scrub, or desert
dunes habitat is present in
the Project site.
Ambrosia
monogyra
singlewhorl
burrobrush
Fed:
Ca:
CRPR:
none
none
2B.2
Aug- Nov
10-50
Occurs in sandy soils
within chaparral and
Sonoran desert scrub.
Possibly threatened by
nonnative plants and trail
maintenance.
Presumed Absent. The
Project site is outside the
known elevational range
for this species. One
historic occurrence is
documented in CNDDB;
OCC 14 was documented in
1961 approximately 3 miles
north of the Project site.
One historic occurrence
was documented north of
the Project site in CalFlora
in 1926 (ID 970327). No
suitable chaparral or
Sonoran desert scrub
habitat is present in the
Project site.
Ambrosia
pumila
San Diego
ambrosia
Fed:
Ca:
CRPR:
END
none
1B.1
Apr-Oct
20-415
Occurs in chaparral,
coastal scrub, valley and
foothill grassland, vernal
pools. Often found in
disturbed areas.
Sometimes found in
alkaline, clay, loamy, and
sandy soils. Threatened by
development, nonnative
plants, vehicles, road
maintenance, and foot
traffic.
Presumed Absent. One
historic occurrence is
documented in CNDDB;
OCC 50 was documented in
1940 approximately 11 miles
south of the Project site. No
suitable chaparral, coastal
scrub, valley and foothills
grassland, or vernal pool
habitat is present in the
Project site.
Appendix D – Plant Potential for Occurrence
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Scientific
Name
Common
Name
Status
Bloom Period
& Elevation
(meters)
Habitat Requirements Potential for
Occurrence
Arctostaphylos
glandulosa ssp.
Gabrielensis
San Gabriel
manzanita
Fed:
Ca:
CRPR:
none
none
1B.2
Mar
595-1,500
Occurs in rocky chaparral.
Only known from Mill
Creek Summit divide in
the San Gabriel Mtns.
Threatened by powerline
construction.
Presumed Absent. The
Project site is outside the
known elevational range
for this species. One
historic occurrence is
documented in CNDDB;
OCC 2 was documented in
1993 approximately 11
miles northwest of the
Project site. No suitable
rocky chaparral habitat is
present in the Project site.
Arenaria
paludicola
marsh
sandwort
Fed:
Ca:
CRPR:
END
END
1B.1
May-Aug
3-1,70
Occurs in sandy soil and
openings within marshes,
swamps, and often in
brackish or freshwater.
Known from only two
natural occurrences in
Black Lake Cyn and Oso
Flaco Lake. Threatened by
vehicles, development,
erosion, hydrological
alterations, and nonnative
plants.
Presumed Absent. The
Project site is outside the
known elevational range
for this species. One
historic occurrence is
documented in CNDDB;
OCC 8 was documented in
1899 approximately 1 mile
southeast of the Project
site. No suitable marsh or
swamp habitat is present in
the Project site.
Astragalus
hornii var.
hornii
Horn's milk-
vetch
Fed:
Ca:
CRPR:
none
none
1B.1
May-Oct
60-850
Occurs in meadows and
seeps, and playas.
Microhabitats include
alkaline soils and lake
margins.
Presumed Absent. One
historic occurrence is
documented in CNDDB;
OCC 1 was documented in
1900 approximately 5 miles
east of the Project site. No
suitable meadows, seeps,
or playa habitat are present
within the Project site.
Berberis nevinii
Nevin's
barberry
Fed:
Ca:
CRPR:
END
END
1B.1
Feb(Mar)-Jun
70-825
Occurs in chaparral,
cismontane woodland,
coastal scrub, and riparian
woodland in sandy or
gravelly soils.
Presumed Absent. Two
historic occurrences are
documented in CNDDB
(OCC 23 in 1966 and OCC
47 in 1999). Both were over
10 miles northeast and
south of the Project site,
respectively. No suitable
chaparral, cismontane
woodland, coastal scrub, or
riparian woodland habitat
is present in the Project
site.
Appendix D – Plant Potential for Occurrence
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Scientific
Name
Common
Name
Status
Bloom Period
& Elevation
(meters)
Habitat Requirements Potential for
Occurrence
Brodiaea
filifolia
thread-leaved
brodiaea
Fed:
Ca:
CRPR:
THR
END
1B.1
Mar-Jun
25-1,120
Occurs in chaparral
openings, cismontane
woodland, coastal scrub,
playas, vernal pools, and
valley and foothill
grassland habitats. Often
found within clay soils.
Presumed Absent. One
recent and one historic
occurrence are
documented in CNDDB.
The recent occurrence was
documented in 2005 (OCC
7) approximately 10 miles
northeast of the Project
site. No suitable chaparral,
cismontane woodland,
coastal scrub, playa, vernal
pool, or valley and foothill
grassland habitat is present
in the Project site.
Calochortus
palmeri var.
palmeri
Palmer's
mariposa-lily
Fed:
Ca:
CRPR:
none
none
1B.2
Apr-Jul
710-2,390
Occurs in chaparral, lower
montane coniferous
forest, and meadows and
seeps. Microhabitat is
often mesic.
Presumed Absent. The
Project site is outside the
known elevational range
for this species. One
historic occurrence is
documented in CNDDB;
this occurrence (OCC 99) is
over 50 years old and was
approximately 6 miles
northeast of the Project
site. No suitable chaparral,
lower montane coniferous
forest, or meadow and
seep habitat is present in
the Project site.
Calochortus
simulans
La Panza
mariposa-lily
Fed:
Ca:
CRPR:
none
none
1B.3
Apr-Jun
325-1,150
Occurs in chaparral,
cismontane woodland,
lower montane coniferous
forest, and valley and
foothill grassland. Often
occurs in granitic soils, but
can also be found in sandy
or serpentinite soils.
Presumed Absent. No
occurrences are
documented in CNDDB
within the vicinity of the
Project site. No suitable
chaparral, cismontane
woodland, lower montane
coniferous forest, or valley
and foothill grassland
habitat is present in the
Project site.
Appendix D – Plant Potential for Occurrence
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Scientific
Name
Common
Name
Status
Bloom Period
& Elevation
(meters)
Habitat Requirements Potential for
Occurrence
Calochortus
weedii var.
intermedius
intermediate
mariposa-lily
Fed:
Ca:
CRPR:
none
none
1B.2
May-Jul
105-855
Occurs in rocky calcareous
soils within chaparral,
coastal scrub, and valley
and foothill grasslands.
Threatened by
development, nonnative
plants, road construction,
fuel modification and
potentially by frequent
wildfires and horticultural
collecting.
Presumed Absent. Three
recent occurrences are
documented in CNDDB. All
three were documented in
2017 (OCC 205, 206, and
207) and approximately 8
to 9 miles west and
northwest of the Project
site. No suitable chaparral,
coastal scrub, or valley and
foothill grassland habitat is
present in the Project site.
Carex comosa
bristly sedge
Fed:
Ca:
CRPR:
none
none
2B.1
May-Sep
0-625
Occurs in coastal prairie,
marshes and swamps, and
valley and foothills
grassland. Found also
along lake margins.
Presumed Absent. One
historic occurrence is
documented in CNDDB;
this occurrence was
documented in 1994 (over
100 years old; OCC 1) and
was documented
approximately 5 miles
southeast of the Project
site. One historic
occurrence was
documented in 1882
northeast of the Project site
in Calflora (ID 34272). No
suitable coastal prairie,
marsh and swamp, or valley
and foothill grassland
habitat is present within the
Project site.
Castilleja
lasiorhyncha
San Bernardino
Mountains
owl's-clover
Fed:
Ca:
CRPR:
none
none
1B.2
May-Aug
1,300-2,390
Occurs in chaparral,
meadows and seeps,
pebble plains, riparian
woodland, and upper
montane coniferous forest
habitats.
Presumed Absent. The
Project site is outside the
known elevational range
for this species. One
historic occurrence is
documented in CNDDB;
this occurrence was
documented in 1937 (over
50 years old; OCC 23)
approximately 10 miles
northeast of the Project
site. No suitable chaparral,
meadow and seep, pebble
plains, riparian woodland,
or upper montane
coniferous forest habitat is
present in the Project site.
Appendix D – Plant Potential for Occurrence
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Scientific
Name
Common
Name
Status
Bloom Period
& Elevation
(meters)
Habitat Requirements Potential for
Occurrence
Centromadia
pungens ssp.
laevis
smooth
tarplant
Fed:
Ca:
CRPR:
none
none
1B.1
Apr-Sep
0-640
Occurs in alkaline soils in
chenopod scrub,
meadows and seeps,
playas, riparian
woodlands, and valley and
foothill grassland.
Threatened by foot traffic,
agriculture, road
maintenance, disking,
urbanization, hydrological
alterations, and flood
control projects.
Presumed Absent.
Although numerous recent
and historic occurrences
are documented in CNDDB,
due to the site’s isolated
nature, its long history of
disturbance, and the lack of
suitable habitat, this
species has been presumed
absent.
Chloropyron
maritimum ssp.
maritimum
salt marsh
bird's-beak
Fed:
Ca:
CRPR:
END
END
1B.2
May-Oct(Nov)
0-30
Occurs in coastal dunes
and in coastal salt
marshes and swamps.
Presumed Absent. The
Project site is outside the
known elevational range
for this species. One
historic occurrence is
documented in CNDDB;
OCC 16 was documented in
1888 (over 100 years ago)
approximately 1 mile
southeast of the Project
site. No suitable coastal
dune or coastal salt marsh
and swamp habitat is
present in the Project site.
Chorizanthe
parryi var.
parryi
Parry's
spineflower
Fed:
Ca:
CRPR:
none
none
1B.1
Apr-Jun
275-1,220
Occurs in chaparral,
cismontane woodland,
coastal scrub, and valley
and foothill grassland
habitats in openings in
sandy or rocky soils.
Presumed Absent.
Although numerous recent
and historic occurrences
are documented in CNDDB,
due to the site’s isolated
nature, its long history of
disturbance, and the lack of
suitable habitat, this
species has been presumed
absent.
Appendix D – Plant Potential for Occurrence
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Scientific
Name
Common
Name
Status
Bloom Period
& Elevation
(meters)
Habitat Requirements Potential for
Occurrence
Chorizanthe
xanti var.
leucotheca
white-bracted
spineflower
Fed:
Ca:
CRPR:
none
none
1B.2
Apr-Jun
300-1,200
Occurs on alluvial fans in
coastal scrub habitat,
Mojavean desert scrub,
and pinyon and juniper
woodland. Often found in
sandy or gravelly soils.
Presumed Absent. Three
recent and one historic
occurrence are
documented in CNDDB.
The most recent
occurrences were
documented in 2010 (OCC
61 and 62) approximately 9
and 10 miles northwest and
north of the Project site,
respectively. No suitable
alluvial fans of coastal
scrub, Mojavean desert
scrub, or pinyon and
juniper woodland habitat is
present in the Project site.
Cladium
californicum
California saw-
grass
Fed:
Ca:
CRPR:
none
none
2B.2
Jun-Sep
60-1,600
Occurs in alkaline or
freshwater marshes and
swamps as well as
meadows and seeps.
Presumed Absent. One
historic occurrence is
documented in CNDDB;
OCC 3 was documented in
1918 approximately 12
miles west of the Project
site. No suitable marsh,
swamp, meadow, or seep
habitat is present within the
Project site.
Claytonia
peirsonii ssp.
peirsonii
Peirson's spring
beauty
Fed:
Ca:
CRPR:
none
none
1B.2
(Mar)May-Jun
1,510-2,745
Occurs in granitic,
metamorphic, scree, and
talus soils within subalpine
coniferous forest and
upper montane coniferous
forest. Threatened by foot
traffic, recreational
activities, and proposed
ski area expansion.
Presumed Absent. The
Project site is outside the
known elevational range
for this species. Two recent
occurrences are
documented in CNDDB;
OCC 1 and 2 were
documented in 2012
approximately 14 miles
northwest of the Project
site. No suitable subalpine
coniferous forest and upper
montane coniferous forest
habitat is present in the
Project site.
Appendix D – Plant Potential for Occurrence
ECORP Consulting, Inc.
Diversified Pacific – 8.5-Acre Maple Property Project D-7 November 2023
2023-169
Scientific
Name
Common
Name
Status
Bloom Period
& Elevation
(meters)
Habitat Requirements Potential for
Occurrence
Cryptantha
incana
Tulare
cryptantha
Fed:
Ca:
CRPR:
none
none
1B.3
Jun-Aug
1,430-2,150
Occurs in gravelly and
rocky soils within lower
montane coniferous
forest.
Presumed Absent. The
Project site is outside the
known elevational range
for this species. No
occurrences are
documented in CNDDB
within the vicinity of the
Project site. No suitable
lower montane coniferous
forest habitat is present in
the Project site.
Cuscuta
obtusiflora var.
glandulosa
Peruvian
dodder
Fed:
Ca:
CRPR:
none
none
2B.2
Jul-Oct
15-280
Occurs in freshwater
marshes and swamps.
Presumed Absent. One
historic occurrence (OCC 1)
was documented in 1890
approximately 6 miles
southeast of the Project
site. No suitable marsh or
swamp habitat is present
within the Project site.
Dodecahema
leptoceras
slender-horned
spineflower
Fed:
Ca:
CRPR:
END
END
1B.1
Apr-Jun
200-760
Occurs in chaparral,
cismontane woodland,
and alluvial fan coastal
scrub in sandy soils.
Presumed Absent. One
recent and numerous
historic occurrences are
documented in CNDDB.
The recent occurrence was
documented in 2020 (OCC
39) approximately 10 miles
north of the Project site.
The nearest occurrence
(OCC 4) was documented
in 1884 approximately 5
miles southeast of the
Project site. No suitable
chaparral, cismontane
woodland, or alluvial fan
coastal scrub habitat is
present in the Project site.
Dudleya
multicaulis
many-stemmed
dudleya
Fed:
Ca:
CRPR:
none
none
1B.2
Apr-Jul
15-790
Occurs in chaparral,
coastal scrub, valley and
foothill grasslands. Often
found in clay soils.
Seriously threatened by
development, road
construction and
maintenance, fire
suppression, nonnative
plants, mining, grazing,
recreation, and possibly by
military activities.
Presumed Absent. One
recent occurrence (OCC
149) was documented in
2017 in CNDDB
approximately 13 miles
southwest of the Project
site. No suitable chaparral,
coastal scrub, or valley and
foothill grassland habitat is
present in the Project site.
Appendix D – Plant Potential for Occurrence
ECORP Consulting, Inc.
Diversified Pacific – 8.5-Acre Maple Property Project D-8 November 2023
2023-169
Scientific
Name
Common
Name
Status
Bloom Period
& Elevation
(meters)
Habitat Requirements Potential for
Occurrence
Eriastrum
densifolium ssp.
sanctorum
Santa Ana River
woollystar
Fed:
Ca:
CRPR:
END
END
1B.1
Apr-Sep
91-610
Occurs in chaparral and
alluvial fan coastal scrub in
sandy or gravelly soils.
Presumed Absent.
Numerous recent and
historic occurrences are
documented in CNDDB.
The most recent occurrence
was documented in 2021
(OCC 5) approximately 8
miles east of the Project
site. Eight occurrences were
documented within
approximately 5 miles from
the Project site; six are
recent with the nearest
documented in 2014 (OCC
41) and 2016 (OCC 3)
approximately 3 miles
north and northeast of the
Project site. No suitable
chaparral or alluvial fan
coastal scrub habitat is
present within the Project
site.
Eriogonum
microthecum
var. johnstonii
Johnston's
buckwheat
Fed:
Ca:
CRPR:
none
none
1B.3
Jul-Sep
1,829-2,926
Occurs in rocky soils
within subalpine
coniferous forest and
upper montane coniferous
forest. Known from fewer
than ten occurrences;
most in designated
wilderness areas.
Threatened by mining and
recreational activities.
Presumed Absent. The
Project site is outside the
known elevational range
for this species. One
historic and one recent
occurrence are
documented in CNDDB.
The recent occurrence
(OCC 8) was documented
in 2005 approximately 12
miles northwest of the
Project site. No suitable
subalpine coniferous forest
and upper montane
coniferous forest habitat is
present in the Project site.
Fimbristylis
thermalis
hot springs
fimbristylis
Fed:
Ca:
CRPR:
none
none
2B.2
Jul-Sep
110-1,340
Occurs in meadows and
seeps that are often
alkaline and near hot
springs.
Presumed Absent. One
recent occurrence (OCC 1)
was documented in 2005
approximately 10 miles
northeast of the Project
site. No suitable meadow
or seep habitat is present
within the Project site.
Appendix D – Plant Potential for Occurrence
ECORP Consulting, Inc.
Diversified Pacific – 8.5-Acre Maple Property Project D-9 November 2023
2023-169
Scientific
Name
Common
Name
Status
Bloom Period
& Elevation
(meters)
Habitat Requirements Potential for
Occurrence
Galium
californicum
ssp. primum
Alvin Meadow
bedstraw
Fed:
Ca:
CRPR:
none
none
1B.2
May-Jul
1,350-1,700
Occurs in chaparral and
lower montane coniferous
forest. Found in granitic
and sandy soils.
Presumed Absent. The
Project site is outside the
known elevational range
for this species. One
historic occurrence (OCC 2)
was documented in 1891 in
CNDDB approximately 8
miles southeast of the
Project site. No suitable
chaparral or lower montane
coniferous forest habitat is
present in the Project site.
Helianthus
nuttallii ssp.
parishii
Los Angeles
sunflower
Fed:
Ca:
CRPR:
none
none
1A
Aug-Oct
10-1,525
Occurs in marshes and
swamps both freshwater
and coastal salt.
Presumed Absent. One
historic occurrence (OCC 5)
was documented in 1937 in
CNDDB approximately 5
miles southeast of the
Project site. No suitable
marsh or swamp habitat is
present within the Project
site. Further, this species is
presumed extirpated in
California.
Horkelia
cuneata var.
puberula
mesa horkelia
Fed:
Ca:
CRPR:
none
none
1B.1
Feb-Jul(Sep)
70-810
Occurs in maritime
chaparral, cismontane
woodland, and coastal
scrub in sandy or gravelly
soils.
Presumed Absent.
Although numerous recent
and historic occurrences
are documented in CNDDB,
due to the site’s isolated
nature, its long history of
disturbance, and the lack of
suitable habitat, this
species has been presumed
absent.
Imperata
brevifolia
California
satintail
Fed:
Ca:
CRPR:
none
none
2B.1
Sep-May
0-1,215
Occurs in chaparral,
coastal scrub, Mojavean
desert scrub, meadows
and seeps, and riparian
scrub. Often within mesic
microhabitats and alkali
meadows and seeps.
Presumed Absent. One
historic occurrence was
documented in 1993 (OCC
9) in CNDDB approximately
9 miles northeast of the
Project site. No suitable
chaparral, coastal scrub,
Mojavean desert scrub,
meadows and seeps, or
riparian scrub habitat is
present within the Project
site.
Appendix D – Plant Potential for Occurrence
ECORP Consulting, Inc.
Diversified Pacific – 8.5-Acre Maple Property Project D-10 November 2023
2023-169
Scientific
Name
Common
Name
Status
Bloom Period
& Elevation
(meters)
Habitat Requirements Potential for
Occurrence
Lasthenia
glabrata ssp.
coulteri
Coulter's
goldfields
Fed:
Ca:
CRPR:
none
none
1B.1
Feb-Jun
1-1,220
Occurs in marshes and
swamps, playas, and
vernal pools. Threatened
by urbanization,
agriculture, road
maintenance, and
drought.
Presumed Absent. One
historic occurrence was
documented in 1989 (OCC
11) in CNDDB
approximately 15 miles
south of the Project site.
No suitable marshes and
swamps, playas, or vernal
pool habitat is present
within the Project site.
Lilium parryi
lemon lily
Fed:
Ca:
CRPR:
none
none
1B.2
Jul-Aug
1,220-2,745
Occurs in mesic soils in
lower and upper montane
coniferous forests,
meadows and seeps, and
riparian forests.
Presumed Absent. The
Project site is outside the
known elevational range
for this species. One
historic occurrence was
documented in 1993 (OCC
37) in CNDDB
approximately 8 miles
northwest of the Project
site. No suitable lower and
upper montane coniferous
forest, meadows and seeps,
or chaparral habitat is
present within the Project
site.
Linanthus
concinnus
San Gabriel
linanthus
Fed:
Ca:
CRPR:
none
none
1B.2
Apr-Jul
1,520-2,800
Occurs in rocky openings
within chaparral, lower
montane coniferous
forest, upper montane
coniferous forest.
Threatened by
recreational activities and
road maintenance.
Presumed Absent. The
Project site is outside the
known elevational range
for this species. Three
recent occurrences (OCC
16, 20, and 21) were
documented in 2003 in
CNDDB between 14 and 15
miles northwest of the
Project site. No suitable
chaparral or lower and
upper montane coniferous
forest habitat is present
within the Project site.
Lycium parishii
Parish's desert-
thorn
Fed:
Ca:
CRPR:
none
none
2B.3
Mar-Apr
135-1,000
Occurs in coastal scrub
and Sonoran desert scrub.
Presumed Absent. One
historic occurrence was
documented in 1885 in
CNDDB (OCC 4) less than
one mile northeast of the
Project site. No suitable
coastal scrub or Sonoran
desert scrub habitat is
present within the Project
site.
Appendix D – Plant Potential for Occurrence
ECORP Consulting, Inc.
Diversified Pacific – 8.5-Acre Maple Property Project D-11 November 2023
2023-169
Scientific
Name
Common
Name
Status
Bloom Period
& Elevation
(meters)
Habitat Requirements Potential for
Occurrence
Malacothamnus
parishii
Parish's bush-
mallow
Fed:
Ca:
CRPR:
none
none
1A
Jun-Jul
305-455
Occurs in chaparral and
coastal scrub habitats.
Presumed Absent. One
historic occurrence was
documented in CNDDB in
1895 (OCC 2)
approximately one mile
east of the Project site. No
suitable chaparral or
coastal scrub habitat is
present within the Project
site. Further, this species is
presumed extirpated in
California.
Monardella
australis ssp.
Jokerstii
Jokerst's
monardella
Fed:
Ca:
CRPR:
none
none
1B.1
Jul-Sep
1,350-1,750
Occurs in chaparral and
lower montane coniferous
forest. Found in steep
scree or talus slopes
between breccia,
drainages, washes, and
alluvial terraces. Only
known from the San
Gabriel Mountains.
Possibly threatened by
stochastic events, erosion,
alteration of fire regimes,
recreational activities, road
maintenance, and possibly
by energy development
and mining.
Presumed Absent. The
Project site is outside the
known elevational range
for this species. One recent
occurrence was
documented in 2006 in
CNDDB (OCC 2)
approximately 12 miles
northwest of the Project
site. No suitable chaparral
or lower montane
coniferous forest habitat is
present within the Project
site.
Monardella
pringlei
Pringle's
monardella
Fed:
Ca:
CRPR:
none
none
1A
May-Jun
300-400
Occurs in sandy coastal
scrub.
Presumed Absent. Two
historic occurrences are
documented in CNDDB;
OCC 1 and 2 were
documented in 1921 and
1941 (over 50 years old)
approximately 3 and 6
miles southeast and
southwest of the Project
site, respectively. No
suitable coastal scrub
habitat is present within the
Project site. Further, this
species is presumed
extirpated in California.
Appendix D – Plant Potential for Occurrence
ECORP Consulting, Inc.
Diversified Pacific – 8.5-Acre Maple Property Project D-12 November 2023
2023-169
Scientific
Name
Common
Name
Status
Bloom Period
& Elevation
(meters)
Habitat Requirements Potential for
Occurrence
Muhlenbergia
utilis
aparejo grass
Fed:
Ca:
CRPR:
none
none
2B.2
Mar-Oct
25-2,325
Occurs in chaparral,
cismontane woodland,
coastal scrub, marshes,
swamps, meadows and
seeps. Associated with
alkaline and serpentine
soils. Threatened by
development.
Presumed Absent. One
historic occurrence was
documented in 1916 in
CNDDB (OCC 1)
approximately 12 miles
west of the Project site. No
suitable chaparral,
cismontane woodland,
coastal scrub, marshes,
swamps, or meadow and
seep habitat is present
within the Project site.
Nasturtium
gambelii
Gambel's water
cress
Fed:
Ca:
CRPR:
END
THR
1B.1
Apr-Oct
5-330
Occurs in brackish or
freshwater marshes and
swamps.
Presumed Absent. One
historic occurrence was
documented in CNDDB in
1935 (OCC 4) within
approximately 5 miles east
of the Project site. No
suitable marsh or swamp
habitat is present within the
Project site.
Navarretia
prostrata
prostrate vernal
pool navarretia
Fed:
Ca:
CRPR:
none
none
1B.2
Apr-Jul
3-1,210
Occurs in mesic soils
within coastal scrub,
meadows, seeps, vernal
pools, and alkaline valley
and foothill grasslands.
Presumed Absent. One
historic occurrence was
documented in CNDDB in
1918 (OCC 15)
approximately 12 miles
west of the Project site. No
suitable meadow, seep,
vernal pool, or valley and
foothill grassland habitat is
present within the Project
site.
Opuntia
basilaris var.
brachyclada
short-joint
beavertail
Fed:
Ca:
CRPR:
none
none
1B.2
Apr-Jun(Aug)
425-1,800
Occurs in chaparral,
Joshua tree "woodland",
Mojavean desert scrub,
and pinyon and juniper
woodland. Threatened by
urbanization, mining,
horticultural collecting,
grazing, vehicles, and
possibly by powerline
construction and
nonnative plants.
Presumed Absent. The
Project site is outside the
known elevational range
for this species. One
historic occurrence was
documented in CNDDB in
1995 (OCC 113)
approximately 10 miles
northwest of the Project
site. No suitable chaparral,
Joshua tree woodland,
Mojavean desert scrub, or
pinyon and juniper
woodland habitat is
present within the Project
site.
Appendix D – Plant Potential for Occurrence
ECORP Consulting, Inc.
Diversified Pacific – 8.5-Acre Maple Property Project D-13 November 2023
2023-169
Scientific
Name
Common
Name
Status
Bloom Period
& Elevation
(meters)
Habitat Requirements Potential for
Occurrence
Oreonana
vestita
woolly
mountain-
parsley
Fed:
Ca:
CRPR:
none
none
1B.3
Mar-Sep
1,615-3,500
Occurs in gravelly and
talus soils within lower
montane coniferous
forest, subalpine
coniferous forest, and
upper montane coniferous
forest. Possibly threatened
by foot traffic and
recreational activities.
Presumed Absent. The
Project site is outside the
known elevational range
for this species. Numerous
recent and historic
occurrences are
documented in CNDDB.
The most recent occurrence
was documented in 2006
(OCC 28) approximately 15
miles northwest of the
Project site. No suitable
lower and upper montane
coniferous forest or
subalpine coniferous forest
habitat is present within the
Project site.
Phacelia
stellaris
Brand's star
phacelia
Fed:
Ca:
CRPR:
none
none
1B.1
Mar-Jun
1-400
Occurs in coastal scrub
and dunes. Threatened by
development and
nonnative plants.
Presumed Absent. One
recent and one historic
occurrence are
documented in CNDDB.
The most recent occurrence
was documented in 2003
(OCC 16) approximately 7
miles west of the Project
site. No suitable coastal
scrub or dune habitat is
present within the Project
site.
Pseudognaphali
um
leucocephalum
white rabbit-
tobacco
Fed:
Ca:
CRPR:
none
none
2B.2
Jul(Aug)-
Nov(Dec)
0-2,100
Occurs in gravelly and
sandy soils within
chaparral, cismontane
woodland, coastal scrub,
and riparian woodland.
Threatened by nonnative
plants, recreational
activities, and hydrological
alterations.
Presumed Absent. One
historic occurrence was
documented in CNDDB in
1891 (OCC 46)
approximately 7 miles west
of the Project site. No
suitable chaparral,
cismontane woodland,
coastal scrub, or riparian
woodland habitat is
present within the Project
site.
Appendix D – Plant Potential for Occurrence
ECORP Consulting, Inc.
Diversified Pacific – 8.5-Acre Maple Property Project D-14 November 2023
2023-169
Scientific
Name
Common
Name
Status
Bloom Period
& Elevation
(meters)
Habitat Requirements Potential for
Occurrence
Ribes
divaricatum
var. parishii
Parish's
gooseberry
Fed:
Ca:
CRPR:
none
none
1A
Feb-Apr
65-300
Occurs in riparian
woodlands.
Presumed Absent. One
historic occurrence was
documented in 1917 in
CNDDB (OCC 5)
approximately 8 miles east
of the Project site. No
suitable riparian habitat is
present within the Project
site. Further, this species is
presumed extirpated in
California.
Sagittaria
sanfordii
Sanford's
arrowhead
Fed:
Ca:
CRPR:
none
none
1B.2
May-Oct(Nov)
0-650
Occurs in shallow
freshwater of marshes and
swamps. Extirpated from
southern California, and
mostly extirpated from the
Central Valley. Threatened
by grazing, development,
recreational activities,
nonnative plants, road
widening, and channel
alteration and
maintenance.
Presumed Absent. One
recent occurrence was
documented in 2009 in
CNDDB (OCC 94)
approximately 10 miles
west of the Project site. No
suitable marsh or swamp
habitat is present within the
Project site.
Schoenus
nigricans
black bog-rush
Fed:
Ca:
CRPR:
none
none
2B.2
Aug-Sep
150-2,000
Occurs in marshes and
swamps often in alkaline
conditions.
Presumed Absent. One
recent occurrence was
documented in 2005 (OCC
1) approximately 9 miles
northeast of the Project
site. No suitable marsh or
swamp habitat is present
within the Project site.
Senecio
aphanactis
chaparral
ragwort
Fed:
Ca:
CRPR:
none
none
2B.2
Jan-Apr (May)
15-800
Occurs within chaparral,
cismontane woodland,
and coastal scrub.
Sometimes found in
alkaline areas. Threatened
by development.
Presumed Absent. One
recent and two historic
occurrences are
documented in CNDDB.
The most recent occurrence
was documented in 2004
(OCC 52) approximately 9
miles southeast of the
Project site. The nearest
occurrence was OCC 30 in
1909 approximately 5 miles
southwest of the Project
site. No suitable chaparral,
cismontane woodland, or
coastal scrub habitat is
present within the Project
site.
Appendix D – Plant Potential for Occurrence
ECORP Consulting, Inc.
Diversified Pacific – 8.5-Acre Maple Property Project D-15 November 2023
2023-169
Scientific
Name
Common
Name
Status
Bloom Period
& Elevation
(meters)
Habitat Requirements Potential for
Occurrence
Sidalcea
neomexicana
salt spring
checkerbloom
Fed:
Ca:
CRPR:
none
none
2B.2
Mar-Jun
15-1,530
Occurs in chaparral,
coastal scrub, lower
montane coniferous
forest, Mojavean desert
scrub, and playas. Often
within alkaline and mesic
areas.
Presumed Absent. One
historic occurrence was
documented in 1906 in
CNDDB (OCC 6)
approximately 5 miles east
of the Project site. No
suitable chaparral, coastal
scrub, lower montane
coniferous forest, Mojavean
desert scrub, or playa
habitat is present within the
Project site.
Sphenopholis
obtusata
prairie wedge
grass
Fed:
Ca:
CRPR:
none
none
2B.2
Apr-Jul
300-2,000
Occurs within cismontane
woodland and meadows
and seeps.
Presumed Absent. Two
historic occurrences are
documented in CNDDB;
OCC 11 and 12 were
documented in 1917 and
1907 approximately 7 miles
east and south of the
Project site, respectively.
No suitable cismontane
woodland or meadow and
seep habitat is present
within the Project site.
Streptanthus
campestris
southern
jewelflower
Fed:
Ca:
CRPR:
none
none
1B.3
(Apr)May-Jul
900-2,300
Occurs in chaparral, lower
montane coniferous
forest, and pinyon and
juniper woodland. Often
within rocky
microhabitats.
Presumed Absent. The
Project site is outside the
known elevational range
for this species. One recent
occurrence was
documented in 2004 in
CNDDB (OCC 38)
approximately 12 miles
northeast of the Project
site. No suitable chaparral,
lower montane coniferous
forest, or pinyon and
juniper woodland habitat is
present within the Project
site.
Appendix D – Plant Potential for Occurrence
ECORP Consulting, Inc.
Diversified Pacific – 8.5-Acre Maple Property Project D-16 November 2023
2023-169
Scientific
Name
Common
Name
Status
Bloom Period
& Elevation
(meters)
Habitat Requirements Potential for
Occurrence
Symphyotrichu
m defoliatum
San Bernardino
aster
Fed:
Ca:
CRPR:
none
none
1B.2
Jul-Nov
2-2,040
Occurs in meadows and
seeps, marshes, and
swamps, coastal scrub,
cismontane woodland,
lower montane coniferous
forest, and vernally mesic
valley and foothill
grassland. Often found in
disturbed areas and near
ditches, streams, and
springs.
Presumed Absent. Four
historical occurrences are
documented in CNDDB.
Two (OCC 32 in 1917 and
OCC 106 in 1995) were
documented approximately
5 miles east and southwest
of the Project site,
respectively. No suitable
meadow and seep, marsh,
coastal scrub, swamp,
cismontane woodland, or
lower montane coniferous
forest habitat is present
within the Project site.
Viola
pinetorum ssp.
grisea
grey-leaved
violet
Fed:
Ca:
CRPR:
none
none
1B.2
Apr-Jul
1,500-3,400
Occurs in meadows,
seeps, subalpine
coniferous forest, and
upper montane coniferous
forest. Threatened by
grazing, trampling,
vehicles and possibly by
recreational activities.
Presumed Absent. The
Project site is outside the
known elevational range
for this species. One recent
occurrence was
documented in 2014 in
CNDDB (OCC 57)
approximately 14 miles
northwest of the Project
site. No suitable meadow,
seep, subalpine coniferous
forest, or upper montane
coniferous forest habitat is
present within the Project
site.
Yucca brevifolia
western Joshua
tree
Fed:
Ca:
CRPR:
none
CAN
CBR
– Occurs in Mojavean desert
scrub, Great Basin scrub,
and California juniper
woodlands. Often found in
sandy areas. Threatened
by fire, drought, climate
change, and habitat loss.
Presumed Absent. No
suitable habitat is present
in the Project site. No
occurrences are
documented in CNDDB
within the vicinity of the
Project site. No suitable
Mojavean desert scrub,
Great Basin scrub, or
California juniper woodland
habitat is present within the
Project site.
Appendix D – Plant Potential for Occurrence
ECORP Consulting, Inc.
Diversified Pacific – 8.5-Acre Maple Property Project D-17 November 2023
2023-169
Scientific
Name
Common
Name
Status
Bloom Period
& Elevation
(meters)
Habitat Requirements Potential for
Occurrence
Federal Designations:
(Federal Endangered Species Act, USFWS)
END: federally listed, endangered
THR: federally listed, threatened
State Designations:
(California Endangered Species Act, CDFW)
END: state-listed, endangered
THR: state-listed, threatened
CAN: Candidate for state listing
FP: Fully Protected Species
SSC: Species of Special Concern
CRPR Ranking
1A: Presumed extinct
1B: Rare, threatened, or endangered in California and
elsewhere
2B: Rare, threatened, or endangered in California,
but more common elsewhere
3: Review list of plants requiring more study
4: Plants of limited distribution watch list
CBR: Considered but rejected
CRPR Threat Code
0.1: Seriously threatened in California
0.2: Fairly threatened in California
0.3: Not ver threatened in California
Source: California Natural Diversity Data Base (CNDDB) California Native Plant Society Electronic Inventory
(CRPREI) Guasti, Fontana, Riverside West, Corona North, Prado Dam, Ontario, Mt. Baldy, Cucamonga Peak,
and Devore 7.5-minute uads.
APPENDIX E
Special-Status Wildlife Species Potential for Occurrence
Appendix E – Wildlife Potential for Occurrence
E-
Scientific Name
Common Name Status Habitat Requirements
Bombus crotchii
Crotch bumble bee
Fed:
CA:
CAN END -
Moderate Potential. Numerous
recent and historic occurrences
are documented in CNDDB. The
most recent occurrences were
documented in 2020 (OCC 316,
427, 428, 429, and 430) and over
9 miles from the Project site.
Four occurrences were
documented within 5 miles of
the Project site; the nearest was
approximately one mile east of
the Project site in 1938 (OCC
184). Suitable habitat in the form
of burrows is present within the
Project site and suitable nectar
sources are present within and
adjacent to the Project site.
Euphydryas editha
quino
Quino checkerspot
butterfly
Fed:
CA:
END
none
Chinese
Presumed Absent . Three
historic occurrences are
documented in CNDDB; all over
50 years old. OCC 111 was
documented in 1914
approximately 5 miles east of the
Project site. The Project site is
located outside of the
recommended survey
area/potential range for quino
checkerspot butterfly.
Rhaphiomidas
terminatus
abdominalis
Delhi Sands flower-
loving fly
Fed:
CA:
END
none
Heterotheca
), California buckwheat
(Eriogonum fasciculatum), and
Croton
).
Presumed Absent. Numerous
recent and historic occurrences
are documented in CNDDB. The
most recent occurrences were
documented in 2013 (OCC 17
and 26) within and
approximately 2 miles east of the
Project site, respectively. Twelve
historic and recent occurrences
were documented within the
Project site; the most recent was
OCC 17. Despite occurrence
data, the Project site does not
contain the Delhi Sands soil
series which is essential for this
species' ecology. Further, the
Project site is not within the
known range map of the species.
Appendix E – Wildlife Potential for Occurrence
E-
Scientific Name
Common Name Status Habitat Requirements
Streptocephalus
woottoni
Riverside fairy
shrimp
Fed:
CA:
END
none
Presumed Absent. The Project
site is outside the known range
for this species. Two historic
occurrences are documented in
CNDDB (OCC 27 and 28); both
are over 30 years old and over
10 miles from the Project site.
No suitable habitat is present
within the Project site.
Fish
Catostomus
santaanae
Santa Ana sucker
Fed:
CA:
THR
none
Presumed Absent . Numerous
recent and two historic
occurrences are documented in
CNDDB. The nearest occurrence
(OCC 27) was documented in
2005 approximately 5 miles
southeast of the Project site. No
stream or river features are
present within the Project site.
Gila orcuttii
Arroyo chub
Fed:
CA:
Presumed Absent. Numerous
historic occurrences are
documented in CNDDB. One
occurrence (OCC 26) was
documented in 1998
approximately 5 miles southeast
of the Project site. No suitable
habitat is present within the
Project site.
Oncorhynchus
mykiss irideus pop.
10
Steelhead-
Fed:
CA:
END
none
Presumed Absent . One historic
occurrence was documented in
CNDDB in 1950 (OCC 18)
approximately 5 miles southeast
of the Project site. No stream or
river features are present within
the Project site.
Rhinichthys osculus
ssp. 8
Santa Ana speckled
dace
Fed:
CA:
Presumed Absent . Three
historic occurrences (OCC 4, 5,
and 7) are documented in
CNDDB; all are over 20 years old
and approximately 10 miles from
the Project site. No stream or
river features are present within
the Project site.
Appendix E – Wildlife Potential for Occurrence
E-
Scientific Name
Common Name Status Habitat Requirements
Rana muscosa
Southern mountain
yellow-
END
END
Occur in glaciated, alpine lakes,
ponds, springs, and streams. Lakes
usually have grassy or muddy
margins.
Presumed Absent . The Project
site is outside the known range
for this species. Five historic
occurrences are documented in
CNDDB; all over 25 years old and
over 8 miles from the Project
site.
Spea hammondii
Western spadefoot
Low Potential. Numerous
recent and historic occurrences
are documented in CNDDB. The
most recent occurrence was
documented in 2023 (OCC 1453)
approximately 11 miles
southeast of the Project site. The
nearest occurrence (OCC 465)
was documented approximately
7 miles northeast of the Project
site in 2016. Marginally suitable
habitat is present within the
Project site in the form of friable
soils that offer the potential for
pooling water after rain events.
Reptiles
Anniella stebbinsi
Southern California
legless lizard
Fed:
CA:
pine-oak
Presumed Absent. Numerous
recent and historic occurrences
are documented in CNDDB. The
most recent occurrences were
documented in 2018 (OCC 394
and 417) approximately 5 and
0.4 mile(s) from the Project site,
respectively. No suitable habitat
is present within the Project site.
Appendix E – Wildlife Potential for Occurrence
E-
Scientific Name
Common Name Status Habitat Requirements
Arizona elegans
occidentalis
California glossy
snake
Fed:
CA:
none
SSC
Typically occurs in rocky washes,
chaparral, scrub and grassland
habitat, often with loose or sandy
soils.
Numerous
recent and historic occurrences
are documented in CNDDB. The
most recent occurrences were
documented in 2016 (OCC 86
and 89) approximately 6 miles
north of the Project site. Six
occurrences were documented
within approximately 5 miles of
the Project site; the nearest was
approximately 2 miles south of
the Project site in 1966 (OCC
235). Marginally suitable habitat
is present within the Project site
in the form of friable soils.
Aspidoscelis tigris
stejnegeri
Coastal whiptail
Fed:
CA:
Low Potential. Three recent and
three historic occurrences are
documented in CNDDB. The
most recent occurrences were
documented in 2016 (OCC 133
and 135) approximately 8 and 6
miles from the Project site,
respectively. The nearest
occurrence was documented
approximately 4 miles southeast
of the Project site in 1995 (OCC
83). Marginally suitable habitat is
present within the Project site in
the form of friable soils.
Charina umbratica
Southern rubber
boa
Fed:
CA: THR
Presumed Absent . No suitable
habitat is present within the
Project site. The Project site is
outside the known range for this
species. Numerous recent and
historic occurrences are
documented in CNDDB. The
nearest occurrences were
documented approximately 2
miles northeast of the Project
site in 1981 (OCC 59) and 1990
(OCC 97). The most recent
occurrence was documented in
2020 (OCC 5) approximately 9
miles east of the Project site. No
suitable habitat is present within
the Project site.
Appendix E – Wildlife Potential for Occurrence
E-
Scientific Name
Common Name Status Habitat Requirements
Coleonyx variegatus
abbotti
San Diego banded
gecko
Fed:
CA:
Presumed Absent. Two recent
occurrences are documented in
CNDDB (OCC 5 and 6). The most
recent occurrence was
documented in 2015 (OCC 6)
approximately 6 miles southeast
of the Project site. No suitable
habitat is present within the
Project site.
Crotalus ruber
Red-diamond
Fed:
CA:
Presumed Absent. Numerous
and one recent occurrence are
documented in CNDDB. The
most recent occurrence was
documented in 2003 (OCC 88)
approximately 15 miles
southwest of the Project site. No
suitable habitat is present within
the Project site.
Emys marmorata
Western pond turtle
nding waters, and wetland
Presumed Absent. One recent
occurrence (OCC 1351) was
documented in CNDDB in 2011
over 10 miles southwest of the
Project site. No suitable habitat
is present within the Project site.
Appendix E – Wildlife Potential for Occurrence
E-
Scientific Name
Common Name Status Habitat Requirements
Phrynosoma
blainvillii
Coast horned lizard
Fed:
CA: scrub,
Low Potential. Numerous
historic and two recent
occurrences are documented in
CNDDB. The most recent
occurrence was documented in
2009 (OCC 696) approximately 8
miles north of the Project site.
Seven occurrences were
documented within 5 miles of
the Project site; the nearest was
approximately 1 mile northeast
of the Project site in 1988 (OCC
322). Marginally suitable habitat
is present within the Project site
in the form of friable soils and an
open to intermittent herbaceous
layer to provide protection and
sunning opportunities.
Thamnophis
hammondii
Two-striped
Fed:
CA: -
Presumed Absent. One historic
and two recent occurrences are
documented in CNDDB. The
most recent occurrence was
documented in 2016 (OCC 152)
approximately 9 miles northeast
of the Project site. No suitable
habitat is present within the
Project site.
Birds
Agelaius tricolor
Tricolored blackbird
(nesting colony)
Fed:
CA:
THR/SSC
Central Valley &
Presumed Absent. Numerous
historic occurrences are
documented in CNDDB; all are
over 20 years old and over 7
miles from the Project site. No
suitable habitat is present within
the Project site.
Appendix E – Wildlife Potential for Occurrence
E-
Scientific Name
Common Name Status Habitat Requirements
Athene cunicularia
Burrowing owl
Fed:
CA:
-growing
Moderate Potential. Numerous
recent and historic occurrences
are documented in CNDDB. The
most recent occurrence was
documented in 2016 (OCC 561)
approximately 9 miles west of
the Project site. Six occurrences
were documented within 5 miles
of the Project site; the nearest
were approximately one mile
from the Project site in 2006
(OCC 927) and 2007 (OCC 1793)
north and northeast of the
Project site, respectively.
Marginally suitable habitat is
present within the Project site in
the form of gopher burrows.
Buteo swainsoni
Swainson's hawk
(nesting)
Fed:
CA: THR
valley & foothill grassland
-
Presumed Absent. Two historic
occurrences are documented in
CNDDB (OCC 2549 and 2552);
both are over 100 years old and
over approximately 10 miles
from the Project site. No suitable
habitat is present within the
Project site.
Coccyzus
americanus
occidentalis
Western yellow-
Fed:
CA:
THR
END
Occurs in riparian forest habitat.
Nests along the broad (≥ 12.4
acres) patches of multi-layered
Presumed Absent. Six historic
occurrences are documented in
CNDDB; one was documented
within approximately 5 miles
southeast of the Project site in
1930 (OCC 79). No suitable
riparian habitat is present within
the Project site.
Coturnicops
noveboracensis
Yellow rail
Fed:
CA:
Presumed Absent. One
historical occurrence (OCC 17)
was documented in 1914 over 10
miles southwest of the Project
site. No suitable marsh or
meadow habitat is present within
the Project site.
Appendix E – Wildlife Potential for Occurrence
E-
Scientific Name
Common Name Status Habitat Requirements
Empidonax traillii
extimus
Southwestern willow
flycatcher (nesting)
Fed:
CA:
Occurs in riparian woodland habitat
in Southern California. Nests in
densest areas of riparian tree and
shrub communities associated with
rivers, swamps, and other wetlands,
including lakes and reservoirs.
Nests are often in nonnative
tamarisk (Tamarisk spp.) and native
willow (Salix spp.), typically in
vegetation stands of 4 -7 m in
height.
One recent
occurrence (OCC 76) was
documented in 2004 in CNDDB
however it was over 10 miles
southwest of the Project site. No
suitable riparian habitat is
present within the Project site.
Icteria virens
Yellow-
Fed:
CA: woodland
Presumed Absent. One recent
occurrence (OCC 106) was
documented in 2015 in CNDDB
approximately 10 miles south of
the Project site. No suitable
riparian habitat is present within
the Project site.
Lanius ludovicianus
Loggerhead shrike
Presumed Absent. One historic
occurrence is documented in
CNDDB; OCC 2 was recorded in
1994 over 10 miles south of the
Project site. No suitable habitat
is present within the Project site.
Laterallus
jamaicensis
coturniculus
California black rail
Fed:
CA: THR/FP
, and impounded
sp.),
bulrush species (Typha
), and alkali
Frankenia salina ) are common
plant species.
Presumed Absent. Three
historic occurrences are
documented in CNDDB; all are
over 50 years old. One
occurrence (OCC 64) was
documented approximately 5
miles from the Project site in
1919. No suitable marsh,
wetland, or riparian habitat is
present within the Project site.
Appendix E – Wildlife Potential for Occurrence
E-
Scientific Name
Common Name Status Habitat Requirements
Polioptila californica
californica
Coastal California
gnatcatcher
Fed:
CA:
THR
SSC
Presumed Absent. Numerous
recent and historic occurrences
are documented in CNDDB. The
most recent occurrence was
documented in 2020 (OCC 1063)
over 10 miles southwest of the
Project site. Six occurrences were
documented within 5 miles of
the Project site; the nearest was
approximately 3 miles north of
the Project site in 1997 (OCC
878). No suitable habitat is
present within the Project site.
Setophaga petechia
Yellow warbler
(nesting)
Fed:
CA:
Presumed Absent. Three recent
occurrences are documented in
CNDDB. The most recent
occurrence was documented in
2016 (OCC 75) and over 10 miles
southwest of the Project site. No
suitable habitat is present within
the Project site.
Vireo bellii pusillus
Least Bell's vireo
(nesting)
Fed:
CA:
END
END
Occurs in riparian forest, riparian
scrub, and riparian woodland
habitats. Summer resident of
Southern California in low riparian
vegetation in the vicinity of water
or in dry river bottoms, below 2,000
ft msl. Nests placed along margins
of bushes or on twigs projecting
into pathways, usually willow, mule
fat, and mesquite.
Presumed Absent. Numerous
recent and historic occurrences
are documented in CNDDB. The
most recent occurrence was
documented in 2015 (OCC 202)
approximately 5 miles southeast
of the Project site. The nearest
occurrence was approximately 4
miles southeast of the Project
site in 1918 (OCC 125). No
Appendix E – Wildlife Potential for Occurrence
E-
Scientific Name
Common Name Status Habitat Requirements
Chaetodipus fallax
fallax
Northwestern San
Diego pocket
mouse
Fed:
CA:
-juniper, and annual
Low Potential. Numerous
recent and historic occurrences
are documented in CNDDB. The
most recent occurrence was
documented in 2016 (OCC 59)
approximately 8 miles southeast
of the Project site. Six
occurrences are documented
within approximately 5 miles of
the Project site; three were
Chaetodipus fallax
pallidus
Pallid San Diego
pocket mouse
Fed:
CA:
Presumed Absent. One historic
occurrence is documented in
CNDDB; OCC 47 was
documented in 1976
approximately 6 miles north of
the Project site. No suitable
habitat is present within the
Project site.
Dipodomys
merriami parvus
San Bernardino
kangaroo rat
Fed:
CA:
END
CAN/SSC
Presumed Absent. Numerous
recent and historic occurrences
are documented in CNDDB.
Twenty-
Appendix E – Wildlife Potential for Occurrence
E-
Scientific Name
Common Name Status Habitat Requirements
Dipodomys
stephensi
Stephens' kangaroo
rat
Fed:
CA:
THR
THR
Occur in arid and semi-arid
habitats. Prefer open areas where
the cover is less than 50%.
Presumed Absent. Numerous
recent and historic occurrences
are documented in CNDDB. The
most recent occurrence was
documented in 2013 (OCC 252)
approximately 10 miles
southwest of the Project site. No
suitable habitat is present within
the Project site.
Eumops perotis
californicus
Western mastiff bat
Fed:
CA:
-
Presumed Absent. Six historical
occurrences are documented in
CNDDB; all are over 30 years old.
One occurrence (OCC 83) was
documented in 1933
approximately 4 miles southe
Glaucomys
oregonensis
californicus
San Bernardino
flying squirrel
Fed:
CA:
-
Presumed Absent. One recent
and two historic occurrences are
documented in CNDDB. The
recent occurrence was
documented in 2005 (OCC 9)
approximately 13 miles
northeast of the Project site. No
suitable forest habitat is present
within the Project site.
Lasiurus xanthinus
Western yellow bat
Populus
), Arizona sycamore
Platanus wrightii), and Arizona
white oak (Quercus arizonica ).
Low Potential. Numerous
historic occurrences are
documented in CNDDB. Two
occurrences were documented in
1996 (OCC 34) and 1992 (OCC
37) approximately 1 mile
southwest and 4 miles northeast
of the Project site. Suitable
roosting habitat is present within
and adjacent to
Appendix E – Wildlife Potential for Occurrence
E-
Scientific Name
Common Name Status Habitat Requirements
Neotoma lepida
intermedia
San Diego desert
woodrat
Fed:
CA:
none
SSC
Occur in a variety of habitats such
as desert scrub. They are known to
prefer rock outcroppings and
cactus patches.
One recent
occurrence and numerous
historic occurrences are
documented in CNDDB. The
most recent and nearest
occurrence (OCC 44) was
documented in 2017
approximately 3 miles northeast
of the Project site. Marginally
suitable habitat is present within
the Project site.
Nyctinomops
femorosaccus
Pocketed free-
Fed:
CA:
Presumed Absent. Four historic
occurrences are documented in
CNDDB; all are over 40 years old.
One occurrence (OCC 23) was
documented approximately one
mile east of the Project site in
1985. No suitable roosting
habitat is present within the
Project site.
Onychomys torridus
ramona
Southern
grasshopper mouse
Fed:
CA:
Presumed Absent. Two historic
occurrences are documented in
CNDDB; OCC 30 was
documented in 1908 and OCC
35 in 1923 (over 50 years old)
and both are over 5 miles
southeast of the Project site. No
suitable habitat is present within
the Project site.
Ovis canadensis
nelsoni
Desert bighorn
Fed:
CA:
Mojavean
Presumed Absent. One historic
occurrence is documented in
CNDDB (OCC 10 in 1986) over 10
miles northwest of the Project
site. No suitable rocky terrain
habitat is present within the
Project site.
Perognathus
longimembris
brevinasus
Los Angeles pocket
mouse
Fed:
CA:
Presumed Absent. Numerous
historic and three recent
occurrences are documented in
CNDDB. Five occurrences were
documented within 5 miles of
the Project site; the nearest and
most recent occurrence was
approximately 3 miles northeast
of the Project
Appendix E – Wildlife Potential for Occurrence
E-
Scientific Name
Common Name Status Habitat Requirements
Taxidea taxus
American badger
Fed:
CA:
Presumed Absent. One historic
occurrence (OCC 204) is
documented in CNDDB; OCC
204 was documented in 1908
and approximately 8 miles
southeast of the Project site. No
suitable habitat is present within
the Project site.
Federal Designations: State Designations:
END: Federally-listed, Endangered
THR: Federally-listed, Threatened
Federal Candidate Species
Federally-delisted
END: State-listed, Endangered
: State-listed, Threatened
PR EN: State-listed, Proposed Endangered
CAN EN: State-listed, Candidate Endangered
CAN: Candidate for state listing
Species of Special Concern
Fully Protected Species