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Home My WebLink AboutDEIR Ch 05_03 BIO 5. Environmental Analysis 5.3 BIOLOGICAL RESOURCES The analysis in this section is based on information from previous technical reports, the California Natural Diversity Database (CNDDB) (U.S. Geological Survey quadrangles for Devore, San Bernardino North, San Bernardino South, Harrison Mountain and Redlands), and the California Native Plant Society (CNPS) Manual of California Vegetation and Plant Inventory. The following technical report was used for the analysis for the Arrowhead Springs Specific Plan: . Biological Resources Assessment. Arrowhead Springs Specific Plan, San Bernardino County, California, Natural Resources Assessment, Inc. November 20, 2004, Revised May 16, 2005. A complete copy ofthis study is included in the Technical Appendices to this Draft EIR (Volume III, Appendix B) 5.3.1 Environmental Setting Regulatory and Protection Federal and State Federal Endangered Species Act (FESA) The Federal Endangered Species Act (FESA) of 1973, as amended was promulgated to protect and con- serve any species of plant or animal that is endangered or threatened with extinction and the habitats in which these species are found. 'Take" of endangered species is prohibited under Section 9 of the FESA. Take as defined under the FESA means to "harass, harm, pursue, hunt, wound, kill, trap, capture, collect, or attempt to engage in any such conduct." Section 7 of FESA requires federal agencies to consult with the U.S. Fish and Wildlife Service (USFWS) on proposed federal actions which may affect any endangered, threatened or proposed (for listing) species or critical habitat that may support the species. Section 4(a) of the FESA requires that critical habitat be designated by the USFWS "to the maximum extent prudent and determinable, at the time a species is determined to be endangered or threatened." Critical habitat is formally designated by USFWS to provide guidance for planners/managers and biologists with an indication of where suitable habitat may occur and where high priority of preservation for a particular species should be given. Section 10 of the FESA provides the regulatory mechanism that allows the incidental take of a listed species by private interests and non-federal government agencies during lawful activities. Habitat conservation plans (HCPs) for the impacted species must be developed in support of incidental take permits for non-federal projects to minimize impacts to the species and develop viable mitigation measures to offset the unavoidable impacts. Migratory Bird Treaty Act The Migratory Bird Treaty Act of 1918 (MBT A), is the domestic law that affirms, or implements, the United States' commitment to four international conventions with Canada, Japan, Mexico and Russia for the protec- tion of shared migratory bird resources. The MBTA governs the taking, killing, possession, transportation, and importation of migratory birds, their eggs, parts and nests. It prohibits the take, possession, import, export, transport, sale, purchase, barter, or offering of these activities, except under a valid permit or as permitted in the implementing regulations. USFWS administers permits to take migratory birds in accordance with the regulations promulgated by the MBTA. General Plan Update and Associated Specific Plans EIR City of San Bernardino -Page 5.3-1 ~ 5. Environmental Analysis Clean Water Act, Section 404 The United States Army Corps of Engineers (USACE) regulates discharges of dredged or fill material into "waters of the U.S."1 (including wetlands and non-wetland bodies of water that meet specific criteria) pursuant to Section 404 of the federal Clean Water Act (CWA) , a permit is required for any filling or dredging within waters of the U.S. The permit review process entails an assessment of potential adverse impacts to USACE wetlands and jurisdictional waters, wherein the USACE may require mitigation measures. Where a federally listed species may be affected, a Section 7 consultation with USFWS may be required. If there is potential for cultural resources to be present, Section 106 review may be required. Also, where a Section 404 permit is required, a Section 401 Water Quality Certification would also be required from the Regional Water Quality Control Board (RWQCB). Clean Water Act, Section 401 and 402 Section 401 (a)(1) of the CWA specifies that any applicant for a Federal license or permit to conduct any activity may result in any discharge into navigable waters, shall provide the federal permitting agency a certification from the State in which the discharge originates, that any such discharge will comply with the applicable provisions of the CWA. In California, the applicable RWQCB must certify that the project will comply with water quality standards. Permits requiring Section 401 certification include USACE Section 404 permits and National Pollutant Discharge Elimination System (NPDES) permits issued by the Environmental Protection Agency (EPA) under Section 402 of the CWA. NPDES permits are issued by the applicable RWQCB. The City of San Bernardino is within the jurisdiction of the Santa Ana RWQCB (Region 8). California Fish and Game Code, Section 1600 Section 1600 of the California Fish and Game Code requires that a project proponent notify the California Department of Fish and Game (CDFG) of any proposed alteration of streambeds, rivers, and lakes. The intent is to protect habitats that are important to fish and wildlife. CDFG may review a project and place conditions on the project as part of a Streambed Alteration Agreement (SAA). The conditions are intended to address potentially significant adverse impacts within CDFG's jurisdictionallimits2. California Endangered Species Act The California Endangered Species Act (CESA) (Fish & Game Code ss 2050, et seq.) generally parallels the main provisions of the FESA and is administered by the CDFG. Its intent is to prohibit "take" and protect state-listed endangered and threatened species of fish, wildlife, and plants. Unlike its Federal counterpart, CESA also applies the take prohibitions to species petitioned for listing (state candidates). Candidate species may be afforded temporary protection as though they were already listed as threatened or endangered at the discretion of the Fish and Game Commission. Unlike the FESA, CESA does not include listing provisions for invertebrate species. Under certain conditions, CESA has provisions for take through a 2081 permit or Memorandum of Understanding (MOU). In addition, some sensitive mammals and birds are protected by the State as Fully Protected Species. California Species of Special Concern are species designated as vulnerable to extinction due to declining population levels, limited ranges, and/or continuing 1 "Waters of the United States" as it applies to the jurisdictional limits of the authority of the Corps of Engineers under the Clean Water Act and includes: 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; all interstate waters including interstate wetlands; 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: water impoundments: tributaries of waters: territorial seas: wetlands adjacent to waters. The terminology used by Section 404 of the Clean Water Act includes "navigable waters" which is defined at Section 502(7) of the Act as "waters of the United States including the territorial seas. H 2 CDFG jurisdictional boundaries closely reflect those of the Corps. but generally cover a broader zone which commonly includes the Corps jurisdictional Ordinary High Water Mark (OHWM) but also extends across the bank to the riparian tree canopy. CDFG jurisdiction need only meet one of the three Corps criteria used to determine wetland boundaries. In additional to rivers. streams and lakes. CDFG jurisdiction may include artificial stock ponds and irrigation ditches constructed in uplands. Page 5.3-2 . The Planning Center July 2005 5. Environmental Analysis threats. This list is primarily a working document for the CDFG CNDDB project which maintains a database of known and recorded occurrences of sensitive species. Informally listed taxa are not protected per se, but warrant consideration in the preparation of biological resources assessments. Local Ordinances City of San Bernardino Municipal Code City Ordinance MC-1 027,9-8-98 and MC-682, 11-6-89 (Municipal Code, Title 15, Chapter 15.34) prohibits the removal and/or destruction of more than five (5) trees within any thirty-six (36) month period from a development site or parcel of property without first being issued a permit from the Development Services Department. Per the ordinances, a permit shall not be required when a lawful order to remove the trees for health and safety purposes has been issued by a local, state or federal government agency; nor shall a permit be required if a removal is to be accomplished by, or under the auspices of a governmental entity. The City's Development Code (Title 19, Land Use/Subdivision Regulations) also contains a Hillside Manage- ment Overlay District that allows for low-density residential development in the City's hillside areas. Policies of this overlay district regulate protection of the hillside's natural and topographic character, environmental, and aesthetic qualities through requirements to minimize grading and erosion effects, and preservation of slope banks, ridgelines, significant rock outcroppings, native plant materials, and natural hydrology. Existing Conservation Plans and Areas Critical habitat identifies specific areas, both occupied and unoccupied by a federally protected species, that are essential to the conservation of a listed species and that may require special management considera- tions or protection. The location of a proposed project within critical habitat typically warrants a habitat assessment, and if suitable habitat is present, focused (protocol) surveys to determine presence or absence of the listed species. Any project involving a federal agency, federal monies or a federal permit that falls within an area designated as critical habitat requires the project proponent to consult with the USFWS regarding potential impacts to the listed species and conservation measures to offset identified impacts. ~ Since the last update of the General Plan in 1989, the USFWS, has designated Critical Habitat for the San Bernardino kangaroo rat, (Oipodomys merriami parvus), coastal California gnatcatcher (Polioptila californica californica), and the Santa Ana sucker (Catostomus santaanae). The City of San Bernardino falls with the Designated Critical Habitats of the San Bernardino kangaroo rat and California gnatcatcher. Critical habitat for both species is shown in Figure 5.3-1, Potential Habitat for Sensitive Wildlife. San Bernardino Kangaroo Rat Critical Habitat The San Bernardino kangaroo rat was emergency listed as endangered on September 24, 1998, when its population had been reduced by approximately 95 percent due to habitat loss and degradation, urban development, water conservation activities and fragmentation owing to sand and gravel mining operations. The species are typically found on alluvial fans, floodplains, along washes, in adjacent upland areas, and areas with historic braided channels. Final designation of critical habitat for the San Bernardino kangaroo rat was issued in April 2002 (Department of the Interior 2002). A total of approximately of 33,295 acres in San Bernardino and Riverside Counties have been designated as critical habitat for the species. Portions of the City are located within two of four critical habitat units. The City overlays the westernmost extent of Critical Habitat Unit 1 (Santa Ana River and San Timoteo Canyon) which roughly covers the areas encompassing City Creek, Plunge Creek, and the Santa Ana River wash. It contains tributaries, flood plain terraces and active hydrological channels. Unit 2 (Lytle and Cajon Creeks) roughly covers habitat along and between Lytle General Plan Update and Associated Specific Plans EIR City of San Bernardino -Page 5.3-3 5. Environmental Analysis This page left intentionally blank. Page 5.3-4 . The Planning Center July 2005 ...., ~ ~ ~ ~ - ~ ~ ~ ~ ~ .~ ~ ~ v\ ;.. ~ ~~ ....~ .;::;~ .'"" ~ ~~ ~ ~ IoIoooi .~ - ~ .~ .~ .... .... ~ ~ ~ ~~ .... ~ ~ ~ " " .~ .~ c ~ -g .s ::r: ::r: i:i ~ ~ ~ :E :; t9 8 u U 8 --- ~ '"' ~ (I t'a lU ~ >. p:::-5:E ~ c t\1 <:<:I ~ ~::r:: ~ gf ~ '0 '> ~~~~i iJ ~ J ~ ~ J.~ j ~,,:::5~;3u .. ."" S ~ "0 Jl -;;t U " CIl b [;i c ~ ,5 ~ ..2 g ~ ~Oi.\1e<:1-Vv [] U U ~ 0 ~ .~ <:: l..__, ',I II; " I ~ ~ "0 o " o ~ " v o ~Jj "0 0 <:: - g ~ ~ 1:: b " u~ :1, 5. Environmental Analysis This page left intentionally blank. Page 5.3-6 . The Planning Center July 2005 5. Environmental Analysis and Cajon Creeks from the point that the creeks emanate from canyons within San Bernardino National Forest to flood control channels downstream. The northwestern most portions of the City are located within Unit 2. Coastal California Gnatcatcher Critical Habitat The coastal California gnatcatcher is a Federally-listed threatened, State Species of Special Concern that typically occurs in or near sage scrub habitat. The species was listed as threatened in 1993. Final desig- nation of critical habitat for the gnatcatcher was issued in October 2000 (Department of the Interior 2000). A total of approximately of 513,560 acres in Los Angeles, Orange, San Diego, San Bernardino, and Riverside Counties are designated as critical habitat for the species. Portions of the City are located within Critical Habitat Unit 11 (San Bernardino Valley MSHCP) which roughly covers approximately 58,000 acres along the foothills of the San Gabriel and San Bernardino Mountains and within the Jurupa Hills on the border of San Bernardino and Riverside counties. Undeveloped areas from the northwestern most portion of the City to the northeastern most portion are located within California gnatcatcher critical habitat. Santa Ana Sucker Critical Habitat and Santa Ana Sucker (SAS) Conservation Program Critical habitat for the Santa Ana sucker was designated January 4, 2005, by USFWS. Approximately 23,719 acres of aquatic and riparian habitats essential to the species conservation was identified. Two areas in Los Angeles County totaling 8,305 acres were designated as critical habitat units. The remaining acreage comprises "essential habitat" for the Santa Ana sucker within the Santa Ana River in Orange, Riverside, and San Bernardino Counties. However this area has been excluded in the revised final designation of critical habitat because USFWS concluded that the habitat is protected within existing programs including the Western Riverside MSHCP and the Santa Ana Sucker (SAS) Conservation Program. ~ The purpose of the SAS Conservation Program is to promote the conservation of the sucker, while providing the necessary authorization, to allow for the incidental take of a limited number of suckers that is anticipated to occur when the participating agencies (regional and local water and flood control districts) implement their Covered Activities. Covered Activities include operation, maintenance, repair, and reconstruction of existing projects and facilities (e.g., rebuilding existing levees for water conservation, constructed wetlands, and flood control) and the continuation of existing programs for flood control, water conservation, water treatment and discharge, protection of transportation routes, and wildlife conservation. The City of San Bernardino Munic- ipal Water Department which operates the Rapid Extraction and Infiltration (RIX) Facility is one of seven participants in the program. Delhi Sands Flower-loving Fly Recovery Plan The Delhi Sands Flower-loving Fly (DSF) was federally listed as endangered in 1993. While no critical habitat has been designated for DSF, a Recovery Plan has been developed by the USFWS that details specific tasks needed to successfully recover the species. The plan defines three Recovery Units, areas that USFWS would like to preserve for the continued survival and ecological recovery of the DSF, such that protection under the FESA is no longer necessary. The south westernmost portion of the City falls within the DSF Colton Recovery Unit which is roughly bounded by Pennsylvania Road to the east; Baseline Road to the north; Cedar Avenue in Rialto to the west; and the Santa Ana River to the south. All but two of the known populations of DSF are located in this Recovery Unit. Areas within the City of San Bernardino containing Delhi sands (potential habitat for the DSF) are limited to the southwest boundary of the City, as shown in Figure 5.3-1. Cajon Creek Conservation Banks Within the Lytle Creek and Cajon Creek wash system in the City of San Bernardino and the SOl west of the City, the sand and gravel company, Vulcan (formerly CalMat) has established a 1,378-acre conservation site and mitigation land bank within the Riversidean alluvial fan sage scrub habitat. The conservation bank is located north ofthe Devil Creek Diversion Channel, south of 1-215, in the Cajon wash running parallel to and General Plan Update and Associated Specific Plans EIR City of San Bernardino . Page 5.3-7 5. Environmental Analysis near Cajon Boulevard (see Figure 5.3-1). The Cajon Creek Conservation Bank was established to conserve populations of 24 species associated with alluvial fan scrub habitat, including the Santa Ana River woolly- star, San Bernardino kangaroo rat, and coastal California gnatcatcher. Another 153 acres of Riversidean alluvial fan sage scrub habitat have been set aside by CEMEX (formerly Sunwest) and a 150-acre Santa Ana River Woolly-star Preserve at the southern tip of the San Bernardino County Sheriff's Training Facility have been set aside as conservation lands within the Lytle Creek/Cajon Creek wash area. In addition, the County of San Bernardino will be establishing a conservation areal mitigation bank in Riversidean alluvial fan sage scrub habitat in the Cajon Wash on the east side of the Glen Helen Regional Park. Lands within and around these conservation lands and mitigation banks are available to offset impacts to sensitive biological resources. Proposed Conservation Plans and Areas Habitat Conservation Plans/Natural Community Conservation Plans Under Section 10 of the FESA, an incidental take permit from the USFWS is required when non-Federal activities will result in "take" of threatened or endangered wildlife. A Habitat Conservation Plan (HCP) must accompany an application to the USFWS for an incidental take permit. If the USFWS accepts the HCP, then the agency issues the permit," which allows permittees to "take" an endangered species if such taking is incidental to, and not the primary purpose of, the proposed activity. The permit is required prior to develop- ing any part of an endangered species' habitat because USFWS regulations equate habitat modification with taking an endangered species, which is prohibited under federal law. The purpose of the HCP planning process is to ensure there is adequate minimizing and mitigation of the effects ofthe authorized incidental permit. The Natural Community Conservation Planning (NCCP) program is an unprecedented, federal, state, and local cooperative effort that takes a broad-based ecosystem approach to planning for the protection and perpetuation of biological diversity. Rather than identify and protect individual species that have already declined in number significantly, an NCCP provides for the regional or area wide protection of plants, animals, and habitats at the ecosystem scale, while accommo- dating compatible and appropriate land use. A local agency (such as a City, County, or District) coordinates with USFWS, CDFG, and other parties to the collaborative planning process to develop a conservation plan. An HCP/NCCP is intended to standardize and streamline the existing permitting process for incidental take of listed species under FESA for the participating entity(s). Upon granting of Take Approval from the USFWS, the participating entity(s) assumes the Service's permitting responsibilities for proposed projects that would potentially take "Covered Species." Covered Species includes species currently listed as threatened or endangered and certain species that may become listed during the term of the HCP/NCCP. Mitigation/ compensation measures established under an HCP/NCCP would concurrently satisfy applicable provisions of the FESA and CESA. In general, an HCP/NCCP would require the County and cities to collect local development mitigation fees, negotiate with developers to site projects thorough a land exchange/dedication process; comply with the plan's policies designed to protect species; contribute to the assembly of a Reserve through the regular land use process and other means; and enforce project conditions to ensure compliance with the HCP /NCCP. San Bernardino Valley Wide Multi-Species Habitat Conservation Plan Presently, there is no approved HCP/NCCP plan for the valley portion of San Bernardino County. The San Bernardino Valley-wide Multi Species Habitat Conservation Plan (MSHCP) is currently in preparation. The proposed MSHCP encompasses approximately 500 square miles containing six unlisted species, six state- listed endangered or threatened species, and thirteen federally-listed endangered threatened species, and 53 species of special concern. San Bernardino County, through the San Bernardino County Museum staff, has been conducting biological and botanical surveys for several years in order to identify habitat needs and Page 5.3-8 . The Planning Center July 2005 5. Environmental Analysis requirements for the various species. The schedule for completion and adoption of the SBVMSHCP is uncertain at this time. Completion of the plan is not expected anytime within the near future. The City participated in previous planning efforts, with the intent to be a Local Permittee upon adoption of the plan. should work on the MSHCP resume, the City would reevaluate merits of participation. Upper Santa Ana River Wash Land Management and Habitat Conservation Plan Landowners, land managers, regulatory agencies and interested stakeholders have been meeting over the past several years to develop a consensus-based land use strategy for the Santa Ana River alluvial fan, which supports most of the remaining stands of Santa Ana River woolly-star (Eriastrum densifolium spp. sanctorum), slender-horned spineflower (Dodecahema leptoceras), and other rare plant and animal species. The aim of this effort is to develop a reserve design and conservation plan that protects the most important habitat areas while consolidating sand and gravel extraction and water spreading activities. The proposed Upper Santa Ana River Wash Land Management and Habitat Conservation Plan for the upper Santa Ana Wash involves an area of approximately 4,365 acres located in the upper Santa Ana River Wash area. The planning area begins at the mouth of the Santa Ana canyon at Greenspot Road, one mile downstream from the Seven Oaks Dam, and extends west westward for approximately six miles to Alabama Street. It would also contain the existing Woolly Star Preservation Area (WSPA) preserved by the USACE and 3 flood control districts; and the BLM's Santa Ana River Area of Critical Concern/Research Natural Area (ACEC/RNA). Final boundaries of the conservation area have not yet been determined3. At this time, the proposed conservation area appears to be just outside of and adjacent to the current City of San Bernardino limits just southeast of the San Bernardino International Airport. 5.3.1.1 San Bernardino General Plan Update Methodology ~ The following assessment of biological resources is based on historical information compiled through previous documentation and appropriate reference materials. Previous studies have been incorporated by reference and summarized. No updated surveys were done city-wide. Plant Communities/Habitat The City of San Bernardino is located in the valley and upland region of San Bernardino County and has been largely disturbed by urban and agricultural uses. The City is surrounded on three sides by other developed cities including Highland to the east, Colton, Loma Linda, and Redlands to the south, and Rialto to the west. The northernmost parts of the City, including lands within the SOl and Arrowhead Springs Specific Plan, lie within the foothills and mountains of the San Bernardino Mountain range and are bound by the San Bernardino National Forest. In the developed portions of the City, there are few remaining areas of natural habitat. Open space consists primarily of developed parks, recreation areas, and golf courses. These areas mostly contain non-native species of plants and animals, while the northern portions of the City contain the majority of the City's significant biological resources. Figure 5.3-2, Biological Resource Areas, shows the general areas where biological resources, including riparian corridors, may be present. 3San Bernardino Valley Water Conservation District. Personal communication with Walter Christensen. Project Manager. April 27. 2005. General Plan Update and Associated Specific Plans EIR City of San Bernardino. Page 5.3-9 5. Environmental Analysis This page left intentionally blank. Page 5.3-10 . The Planning Center July 2005 ~ ~ ~ '-.) ~ ~ >:l '" ~ ....... ~ ...... ~ ....... >:l ...... CCl ..., .- ..., ~ ~ ~ ~ ..... ~ ~ .... ~ ~ ~ .- ;;:, ~ ~ V\ ~ 58'~ fJl :,lft o 1,. II> J- ',10" ~ \::1 ! 10 \;$ ~ ~ ~ ~ E .S % 5:g~O ~ 8 E 1 ~ ,.... ~ ,~ .% ~ 12 .9%.t~ .s ~ p. u ~ WC\\tk~. l:' " 1 " o ;:P '" 'a g ~"a ""<l _ g~ o " ;:P "" ,~~ U if) .~ ;;; -"! "" ~ O<i t'a " i: % " t:;< ~ .~ '" ~ "'" " " ~ 5" " -"! "" ~ l! ~ ~ ~ ~ '" " '" 5. Environmental Analysis This page left intentionally blank. Page 5.3-12 . The Planning Center July 2005 5. Environmental Analysis The majority of the City lies on broad, sloping lowlands along the southwest margins of the San Bernardino Mountains. The lowland is underlain by alluvial sediments eroded from bedrock in the mountains and washed down into the valley by rivers and creeks. Alluvial fans and floodplains of the valley floor support distinctive alluvial scrub and alluvial fan scrub vegetation. Upland areas support inland coastal sagebrush scrub vegetation. Above the valley floor and uplands are deep canyons which support riparian and oak woodland habitats and riparian forest. Broad canyons and mountain slopes of the foothills support chaparral and woodland vegetation. Disturbed and developed areas of the City support non-native annual grasslands. The City of San Bernardino contains plant communities that range from disturbed and ornamental plant communities in the urbanized portions of the City to native plant communities along the northern portions of the City along the base of the foothills and in the mountains. Plant communities within the City and SOl include the following: Coastal Sage Scrub Coastal sage scrub communities consist of drought-deciduous, low, soft-leaved shrubs and herbs on gentle to steep slopes below 3,000 feet in elevation. Coastal sage-chaparral scrub is found on upland slopes, typically south-facing. It is often considered part of a collection of series referred to as coastal scrub. Domi- nant shrub species include California sagebrush, California brittlebush, and California buckwheat. Other species may include deerweed and white sage, black sage, and chamise. Several dominant species occur within coastal sage scrub communities and some areas may be overwhelmingly dominated by one or two species. In addition, several coastal sage scrub communities support representative dominant species of two separate communities and are designated as such. Coastal sage scrub communities within the planning area may include buckwheat scrub, coastal sage-chaparral scrub, Riversidean sage scrub, and Riversidean alluvial fan sage scrub. Coastal sage scrub is present on the hillsides surrounding drainages. Riversidean alluvial fan sage scrub habitat dominates the Santa Ana River flood plain that traverses the southern portion of the City. ~ Chaparral Chaparral communities consist of evergreen, medium height to tall sclerophyllous (woody with leathery leaves) shrubs that form a dense cover on steep slopes. The dense, almost impenetrable, cover allows very little to no understory growth and usually consists mostly of leaf litter. Chaparral is an upland habitat and is found mainly on the upper slopes and higher elevations in the mountain ranges in the northern portion of the City. Dominant species include chamise, buckwheat species, chaparral whitethorn and yucca. Common species may include hoaryleaf ceanothus, mountain mahogany, and coast live oak. The type of chaparral community depends upon the dominant species. Chaparral communities found within the planning area may include chamise chaparral, scrub-chaparral, mixed chaparral, and soft chaparral. Riparian Riparian communities occur along water courses or water bodies adaptable to seasonal flooding. Struc- turally, riparian areas may range from a dense canopy of large trees with a bramble/thicket understory within a steep canyon, to open, lower-growing species within a sandy wash. Riparian plant species include willows, Fremont's cottonwood, sycamore, white alder, California walnut, mulefat, and broad-leaved cattail. Herba- ceous species include red monkeyflower, California mugwort, white-flowered deadly nightshade, croton, and poison oak Shrubs along the canyon sides include mountain mahogany, California brickellia, and hoaryleaf ceanothus. California bay and coast live oak are occasionally found in these communities. Riparian communities may include southern willow scrub and mule fat scrub. Riparian communities may also include riparian woodland and forest communities described below. General Plan Update and Associated Specific Plans EIR City of San Bernardino . Page 5.3-13 5. Environmental Analysis Woodland Woodland communities are associated with multi-layered vegetation canopies ranging from open, to moderately dense cover and have a tree canopy that is at least 20 percent open. Woodland habitats are often associated with watercourses and riparian communities. Within the planning area, stands of riparian woodlands primarily occur within the major drainage courses in the northern portion of the City and may include southern sycamore-alder riparian woodland, sycamore willow woodland, and California walnut woodland. Forest Communities Forest communities consist of multi-layered vegetation that forms a dense canopy cover that is almost completely closed. The ground layer of plants is sparse or absent. Forest communities may occur in stream benches and terraces, and canyon bottoms near streams. Within the planning area forest communities may include southern coast live oak riparian forest, southern cottonwood-willow riparian forest, white alder riparian forest, and lower montane coniferous forest. Southern coast live oak riparian forest may be dominated by coast live oak, Englemann oak, and California bay. Southern cottonwood-willow riparian forest community consists of tall, open, broadleafed winter-deciduous riparian forests dominated by Fremont cottonwood and several tree willows. Understories are usually shrubby willows. Lower montane coniferous forest is dominated by Coulter pine, manzanita, coast live oak, and occasional stands of scrub oak. Annual Grasslands [Valley and Foothill Grasslands] This extensive collection of series (including Annual Grasslands and several Needlegrass Grasslands) is composed of many alien and native annual species. Composition varies among stands and many species beyond those typically listed may also be present. Species include ripgut brome, soft chess, foxtail chess, filarees, common goldfields, lupine, wild oats, and Italian rye-grass. Stands of once extensive series of valley needlegrass grasslands now typically include non-native annual species mixed with the perennial grasses and herbs. Foothill needlegrass, nodding needlegrass, and purple needlegrass occur sympatrically, but do not typically mix. The non-native annual grassland areas are typically disturbed or graded areas and vacant lots that have revegetated with opportunistic weedy species. Ornamental Woodland Ornamental woodlands are created woodlands using non-native trees and shrubs. Common species of trees found within ornamental woodlands throughout the City of San Bernardino include various species of eucalyptus tree, tamarisk and Peruvian pepper trees. Ornamental woodlands often provide excellent nesting habitat for raptors and other birds. Ornamental woodlands also provide shade, wind protection, erosion control and aesthetic value to people. Scattered ornamental woodlands and windrows exist throughout the City. Developed/Disturbed Although most of the land within the City limits supported coastal sage and alluvial communities at one time, much of the land today is either developed or has been extensively modified by human activity sometime in the recent past. Development includes any form of human disturbances, especially in cases of permanent impacts to natural communities. Disturbed areas would include dirt roads, off-highway use, pavement, concrete, buildings and structures, bridges, active agricultural activities, and permanent flood control measures. Fallow agricultural areas are in various stages of succession and are covered with non-native grasslands, emergent native vegetation and exotics. These areas may provide suitable habitat for the San Bernardino kangaroo rat, a federally endangered species of rodent. In developed areas, native species have been replaced by landscaping or a variety of annual grasses. The non-native annual grass species found include a variety of bromes, Bermuda grass and the large Johnston grass. Non-native tree clusters and Page 5.3-14 . The Planning Center July 2005 5. Environmental Analysis windrows are also located within the developed portions of the City, consisting of large eucalyptus, California pepper, and olive trees and oleander. In disturbed areas ruderal species consist of weedy grasses such as red brome and Mediterranean grass, and weedy forbs such as short-podded mustard, Russian thistle, and tocalote. Native species may include California croton, deerweed and scalebroom, and doveweed. Non-native Landscaping Non-native landscaping includes palms, blue gum [eucalyptus], Peruvian pepper tree, non-native oaks, pines, fruit trees, olive, and other landscape trees and shrubs. Animals The vegetation communities within the City of San Bernardino provide habitat for a wide variety of animal species. Common birds in the area include the roadrunner, horned lark, scrub jay, plain tit-mouse, verdin, wrentit, Bewick's wren, California thrasher, American goldfinch, Brown California towhee, lesser goldfinch, and song sparrow. Raptors and owls exist in some of the open areas of the City. Within the City limits, common mammal species are limited to those that have adapted to or can coexist with humans, such as pocket gophers, California ground squirrels, desert cottontail rabbits, striped skunk, and opossum. Smaller mammals still persist in the streamside woodland areas within the northern limits of the City and the SOl. Pocket gopher, California pocket mouse, kangaroo rats, various white-footed mice, California vole, black-tail jackrabbit, brush rabbit, and cottontail rabbit are typically found in undisturbed areas containing RAFSS. Moderate size mammals such as spotted striped skunk, Gray squirrel, opossum, raccoon, bobcat, and gray fox are typically found in the mixed chaparral habitat located in the northern areas of the City. Very few large mammals, such as black bear, mountain lion, and mule deer occur within the City limits, but have been observed in the mountainous areas north of the City. Sensitive Resources ~ Sensitive Plant Communities/Habitat Portions of the City support habitat types considered sensitive by resource agencies, namely the CDFG, due to their scarcity and ability to support a number of State and Federally-listed endangered, threatened, and rare vascular plants, and sensitive wildlife species. The CNDDB reports the occurrence of sensitive biological elements, including sensitive plant and animal species, and vegetation communities within and in the vicinity of Highland. The primary purpose ofthe CNDDB classification is to assist in the location and determinations of significance and rarity of various vegetation types. Thus, ranking of natural communities by their rarity and threat is an important facet of the classification. The CNDDB community lists, notes rare communities that are either known or believed to be of high priority for inventory in CNDDB. Sensitive vegetation communities (Le., "high priority" habitat types) that are known or may occur within the San Bernardino planning area include the following: . Valley Needlegrass Grassland . Wildflower Field (California Annual Grassland Series) . Riversidean Alluvial Fan Sage Scrub . Southern Willow Scrub . Southern Coast Live Oak Riparian Forest . Southern Cottonwood-Willow Riparian Forest . Southern Riparian Forest . White Alder Riparian Forest . Southern Sycamore-Alder Riparian Woodland General Plan Update and Associated Specific Plans EIR City of San Bernardino . Page 5.3-15 5. Environmental Analysis . California Walnut Woodland . Freshwater Seep Sensitive Plant Species Sensitive plants include those listed, or are candidates for listing, by the USFWS, CDFG, and CNPS. The sensitive plant species listed in Table 5.3-1 were reported in the CNDDB) from the Harrison Mountain, Redlands San Bernardino South, and Yucaipa USGS quadrangles and potentially occur within or in the vicinity of the City. Table 5.3-1 Sensitive Plant Species Potentially Present in the City of San Bernardino and Vicinity Federal/State CDFG or Scientific Name Common Name Status CNPS Arenaria paludicola Marsh sandwort END/END 1B Berberis nevinii Nevin's barberry END/END 1B Brodiaea filifolia Thread-leaved brodiaea THR/END 1B Carex comosa Bristly sedge None/None 2 Centromadia pungens ssp. laevis Smooth tarplant None/None 1B Calochortus plummerae Plummer's mariposa lily None/None 1B Chorizanthe parryi var. parryi Parry's spineflower None/None 3 Chorizanthe xanti var. leucotheca White-bracted spineflower None/None 1B Cordylanthus maritimus ssp. laevis Salt marsh bird's-beak END/END 1B Dodecahema leptoceras Slender-horned spineflower END/END 1B Dudleya multicaulis Many-stemmed dudleya None/None 1B Eriastrum densifolium spp. sanctorum Santa Ana River woollystar END/END 1B Fimbristylis thermalis Hot springs fimbristylis None/None 2 Galium californicum ssp. primum California bedstraw None/None 1B Helianthus nuttallii ssp. parishii Los Angeles sunflower None/None 1A Horkelia cuneata ssp. puberula Mesa horkelia None/None 1B Lepidium virginicum var. robinsonii Robinson's pepper-grass None/None 1B Lilium parryi Lemon lily None/None 1B Lycium parishii Parish's desert-thorn None/None 2 Monardella pringlei Pringle's monardella None/None 1A Ribes divaricatum var. parishii Parish's gooseberry None/None 1B Rorippa gambelii Gambel's water cress END/THR 1B Schoenus nigricans Black sedge None/None 2 Sidalcea neomexicana Salt Spring checkerbloom None/None 2 Theylypteris puberula var. sonorensis Sonoran maiden fern None/None 2 FED: Federal Classifications STATE: State Classifications END Taxa listed as endangered END Taxa listed as endangered THR Taxa listed as threatened THR Taxa listed as threatened PE Taxa proposed to be listed as endangered CE Candidate for endangered listing PT Taxa proposed to be listed as threatened CT Candidate for threatened listing C2* USFWS may, in the future, designate such taxa as Candidates. SC California Species of Special Concern. (*) indicates C2 candidates that were removed from the list. None Not designated as a sensitive species C Candidate for listing. None Not designated as a sensitive species Page 5.3-16 . The Planning Center July 2005 5. Environmental Analysis Table 5.3-1 Sensitive Plant Species Potentially Present in the City of San Bernardino and Vicinity CNPS: California Native Plant Society Classifications 1A Plants presumed by CNPS to be extinct in California 1 B Plants considered by CNPS to be rare or endangered in California and elsewhere 2 Plants considered by CNPS to be rare, threatened or endangered in California, but which are more common elsewhere 3 Review list of plants suggested by CNPS for consideration as endangered but about which more information is needed. 4 Watch list of plants of limited distribution whose status should be monitored. Source: California Natural Diversity Database, April 2005, Devore, San Bernardino North, San Bernardino South, Harrison Mt. quadrangles. Sensitive Wildlife Sensitive wildlife includes those species listed as endangered or threatened under the FESA or CESA, as candidates for listing and species of special concern by the USFWS and CDFG, and fully-protected species. A number of sensitive wildlife species from the region were reported in the CNDDB and are listed in Table 5.3-2 below. Several raptor species that may be migrants to the general area are also considered sensitive and are included. INSECTS Raphiomidas terminatus abdominalis FISH Catostomus santaanae Rhinichthys osculus ssp. 3 AMPHIBIANS END/None Santa Ana sucker Santa Ana speckled dace THR/SC None/SC ~ Batrachoseps gabrieli San Gabriel slender salamander None/None SA Rana aurora draytonii California red-legged frog THR/SC Rana muscosa Mountain yellow-legged frog END/SC REPTILES Aspidoscelis hyperythra Orange-throated whiptail None/SC Charina bottae umbratica Southern rubber boa NonejTHR Lampropeltis zonata parvirubra San Bernardino mountain kingsnake None/SC Phrynosoma coronatum blainvillei Coast (San Diego) horned lizard None/SC BIRDS Accipiter cooperii Cooper's hawk None/SC Accipter striatus Sharp-shinned hawk None/SC Aimophila ruficeps canescens Southern California rufous-crowned sparrow None/SC Aquila chrysaetos Golden Eagle None/SC, CFP Athene cunicularia Burrowing owl None/SC Buteo swainsoni Swainson's hawk NonejTHR Circus cyaneus Northern Harrier (Marsh hawk) None/SC Coccyzus americanus occidentalis Western yellow-billed cuckoo C/END Eremophila alpestris actia California horned lark None/SC Falco columbarius Merlin None/SC Falco mexicanus Prairie Falcon None/SC Falco peregrinus anatum American peregrine falcon None (Formerly END)/END, CFP Polioptila californica californica Coastal California gnatcatcher THR/SC Vireo bellii pusillus Least Bell's vireo END/END General Plan Update and Associated Specific Plans EIR City of San Bernardino . Page 5.3-17 5. Environmental Analysis Northwestern San Diego pocket mouse San Bernardino kangaroo rat Stephen's kangaroo rat San Diego desert wood rat LVIIIUU,) lIalllUlla Southern grasshopper mouse EumoDs I Uti,) Western mastiff bat La,)IUI u,) Western yellow bat Perognathus longimembris brevinasus Los Angeles pocket mouse FED: Federal Classifications STATE: State Classifications END Taxa listed as endangered END Taxa listed as endangered THR Taxa listed as threatened THR Taxa listed as threatened PE Taxa proposed to be listed as endangered CE Candidate for endangered listing PT Taxa proposed to be listed as threatened CT Candidate for threatened listing C2* USFWS may, in the future, designate such taxa as CFP California Fully Protected Candidates. (*) indicates those C2 candidates that were SC California Species of Special Concern. removed from the list. SA Special Animal. Taxa of concern to the CNDDB regardless of C Candidate for listing. their current legal or protected status. None Not designated as a sensitive species None Not designated as a sensitive species Source: California Natural Diversity Database, April 2005, Devore, San Bernardino North, San Bernardino South, Harrison Mt. quadrangles. tal/ax tal/ax . narvus NonejSC ENDjSC ENDjTHR NonejSC NonejSC NonejSC NonejNone NonejSC Wildlife Corridors Historically, the land within the City of San Bernardino provided movement in both north-south and east-west directions, and provided a connection between the nearby San Bernardino Mountains to the valley floor. Currently, the City is mostly developed, with most of the land converted from open space areas to commercial, industrial, residential, and recreational uses. Wildlife movement on a north-south regional basis has ceased due the development of the valley floor. Major wildlife movement within the City is not likely to occur. Regional wildlife movement in an east-west orientation in the mountains and along the undeveloped foothills northeast of 1-215 and north of SR 30/1-210 may still provide viable wildlife corridors. Wildlife corridors within the City and SOl areas are most likely limited to the northern undeveloped portions of the City. Cajon Canyon, Lytle Creek Wash may also serve as potential movement corridors, but to a lesser extent, as portions of the channels have been modified by aggregate extraction activities. East-west corridors may exist along the Santa Ana River although large portions of the wash have also been modified for flood control and water conservation facilities, and by active aggregate mining activities. Local wildlife corridors are likely to occur within the canyons and washes in the foothills and mountains north of the City. Jurisdictional Waters and Wetlands The lateral limit of USACE jurisdiction extends to the Ordinary High Water Mark (OHWM) and to any wetland areas extending beyond the OHWM. Wetlands are based on the hydrologic characteristics, vegetation, and soil conditions of the site. Non-wetland waters of the U.S. are based on the limits of the OHWM. CDFG jurisdiction is defined to the banks of the stream or channel. Lateral limits of jurisdiction are not clearly defined, but generally include any riparian resources associated with a stream or lake. The City of San Bernardino contains three large watercourses determined to be "waters of the U.S." that traverse portions of the City as tributaries within the Santa Ana watershed (see Figure 5.3-2). The northwestern and western boundary of the City approximately parallels and encompasses portions of Cajon Canyon Wash and Lytle Creek Wash. The Santa Ana River and wash bounds and traverses through the Page 5.3-18 . The Planning Center July 2005 5. Environmental Analysis southeastern portion of the City. Several blue line streams flow within canyons through the mountains and foothills of the San Bernardino Mountains from the north including: . Cable Canyon . East Twin Creek/Coldwater Canyon . Meyers Canyon . Strawberry Creek . Bailey Canyon . Borea Canyon . Devil Canyon . Little Sand Creek . Badger Canyon . Sand Creek/Sand Canyon . Sycamore Canyon . City Creek, Cook Canyon . West Twin Creek/Waterman Canyon Various unnamed canyons and drainages also emanate from the foothills and drain toward the valley and the City. Riparian resources, including wetlands that occur along these drainages potentially fall under the jurisdiction of the USACE and CDFG. The east branch of the State Water Project California Aqueduct also traverses the northwestern portion of the City. Several tributaries, including East Twin Creek, Warm Creek, Lytle Creek, and City Creek traverse the urbanized portions of the City as flood control channels and canals. Within the developed area of the northwest portion of the City are features that have been modified for flood control, including reservoirs, flood control basins, and percolation basins constructed to receive flow from drainages including Devil Canyon, Bailey Canyon, West Twin Creek, and East Twin Creek, are also located throughout the City. 5.3.1.2 Arrowhead Springs Specific Plan Methodology ~ The Biological Resources Assessment, Arrowhead Springs Specific Plan (NRA, Inc. 2005) report was prepared based on information complied through field investigations, previous documentation, and appropriate reference material for biological resources in the project area and adjacent areas including the CNDDB. The surveys included vegetation and habitat classification, a general plant inventory, sensitive plant surveys, general wildlife inventory of wildlife, a wildlife corridor and sensitive species assessment. A detailed description of survey methodologies can be found in the biological resources assessment (Appendix B, Volume III). A database search was conducted for sensitive biological resources occurring on the San Bernardino North, San Bernardino South, Devore, and Harrison Mountain 7.5-minute topographic quadrangle maps. Sensitive species potentially present include those listed, or candidates for listing by USFWS, CDFG and the CNPS. All sensitive species were considered as potentially present on the project site if its known geographical distribution encompassed all or part of the project area; or if its distribution was near the site and its general habitat requirements were present. Biological resources assessment surveys were conducted by NRA, Inc. on November 9 and 10, 2004. The surveys combined walking and driving surveys of the property, focusing on areas proposed for development. The surveys included the use of binoculars to aid in the identification of birds, as well as plant species on inaccessible hillsides. All species identified by sight, call or sign (burrows, scat, tracks, etc.) were recorded. Site photographs were also taken. Existing conditions within the site were recorded, paying specific attention to habitats that may potentially contain sensitive species. An assessment of wetlands and non-wetlands waters within the project site was also conducted to determine onsite drainages that are potentially subject to jurisdiction of the USACE and/or the CDFG and to identify any areas that were determined to fall under these jurisdictions. A formal delineation for the drainages present on the site was not conducted. The results of the jurisdictional assessment are included in the biological assessment report (Volume III, Appendix B). General Plan Update and Associated Specific Plans EIR City of San Bernardino . Page 5.3-19 5. Environmental Analysis Plant Communities/Habitat A map of the existing habitats and vegetation communities is shown in Figure 5.3-3, Plant Communities, Arrowhead Springs Specific Plan . Table 5.3-3 provides the acres of the plant communities within the property boundaries. Table 5.3-3 Plant Communities in the Arrowhead Springs Specific Plan Area Plant Community Acreage #1 Annual Grassland (AG/S) 258.7 #11 Vacated Residential Development (VRD) 39.2 #2 Chamise Chaparral (CHA) 263.5 #3 Chaparral (CHP) 914.3 # 4 Disturbed (DIST) 35.5 #5 DeelWeed Scrub (OS) 82.3 #6 Landscape (LS) 133.9 #12 Cattail Marsh (MARSH) 2.3 #7 Lower Montane Coniferous Forest (MON) 38.8 #13 Pond (POND) 2.2 #8 Sycamore Alder Woodland (SAW) 40.0 #9 Southern Willow Riparian (SWR) 20.0 #10 Sycamore Willow Woodland (SWW) 48.4 Unclassified Non-Native [Landscape]* 21.1 TOTAL 1900.2 Note: Number corresponds to number on Figure 5.3-3 * Classification is included in #6 on Figure 5.3-3 Soils on the property include Soboba stony loamy sandy soils in the drainages and a mix of Soboba stony loamy sandy soils and Hanford coarse sandy loams on the hillsides. Portions of the project site are developed. Former land use included a spa, hotel, recreational center, and bungalow-type residential units. Current use of the property is limited to the office buildings, village complex, conference room, and maintenance/support buildings. Prior disturbances within the project site include the construction and use of the Arrowhead Springs Hotel and Spa, roads and infrastructure. Current disturbances include the loss of scrub on the south, east, and west portions of the site from wildfires, and grading and drilling being conducted by the Metropolitan Water District (MWD) Tunnel Project in West Twin Creek/Waterman Canyon near the main entrance to the project site. Land uses south of the Arrowhead Springs project site include percolation and spreading basins for the water from East Twin Creek and West Twin Creek/Waterman Creek, and residential uses. Open space occurs on the east, west and north. The Arrowhead Springs Specific Plan site contains the following plant communities: Page 5.3-20 . The Planning Center July 2005 ~ ~ .... ;.. ~ ~ ~ ~ ~ t ~ " ill ~ o ~ ~ -~ -t'Q Cl .~ 1 @~ ~ ~ 15J ~ ~ ~ c ~ ~ g.~ ~ ~, ~fr ~ 00 I ~. ,Q)! '" 0 ~ " ill '" 11 " '" ~ ~ c 8 .ili em g ill ~ ! ~ '" '" 1:i ~ ~ ro 1 c 13 g! ~ ~ E c ili ~ '" '" ~ <: -g .0 E "- :Ii .s ~ '" " .::l z is 0 ::; is (.) ..., ..... ~ ~ ~ ~ ~ ..... ~ '" ~ ~ l;2 ..... ~ ~ ~ lI\ ~ "EJ ~ ~ ~ ~ & ~. ::~ '~~) '? '" ,,; ~ ::l tIl ii: " () ~;; .::: ~ '" 0:; h ::: '" '" 0:; ~ o ~ '~ ~ s '" & '" 0:; ~ \.:J ~ ~ oil '" '"' 5. Environmental Analysis This page left intentionally blank. Page 5.3-22 . The Planning Center July 2005 5. Environmental Analysis Mixed Annual Grassland and Scrub. Dominant annual species in this habitat include various brome grasses (Bromus madritensis, Bromus diandrus, and Bromus tectorum), Mediterranean grass, and herbaceous species such as short-podded mustard and doveweed. The dominant scrub species in this plant community is California buckwheat (Eriogonum fasciculatum), and deerweed (Lotus scoparius). Herbaceous species include short-podded mustard, branching phacelia (Phacelia ramossisima) and cotton thorn (Tetradymis comosa). In some areas (especially those subjected to frequent burning), this community is dominated by grasses and deerweed. This plant community frequently intergrades with chamise chaparral. Most of the lower slopes of the foothills are covered with a mix of annual grassland and scrub, including the Steam Caves drainage. Deerweed Scrub. This plant community is dominated by deerweed, weedy grasses, and herbaceous species. Almost no other scrub plant occurs in this community. Deerweed scrub is not a true native southern California plant community. It indicates that the native scrub habitat has been recently disturbed (usually burned) with the result that deerweed becomes the dominant shrub. This plant community is found only in the central area north of the landscaped grounds, including the area north of East Twin Creek. Chamise Chaparral. The chamise chaparral on site is dominated by chamise (Adenostoma fasciculatum), but includes some coastal sage scrub species such as California buckwheat, deer weed and white sage (Salvia apiana). Other species found in soft chaparral include buckbrush (Ceanothus cuneatus), yerbasanta (Eriodictyon trichocalyx), Whipple's yucca (Yucca whipplei) and black sage (Salvia mellifera). Scrub oak (Quercus berberidifolia) is sometimes found in this plant community. Herbaceous species include wishbone bush (Mirabilis californica) and wild cucumber (Marah macrocarpa) on dry slopes. Poison oak (Toxicon- dendron diversilobum) occurs in more moist sites. On the Arrowhead Springs property, chamise chaparral is found on dry slopes, often intermixed with the mixed annual grassland and scrub plant community. Chamise chaparral also occurs along upper West Twin Creek/Waterman Canyon, and is particularly extensive along the western side of the canyon. ~ Chaparral Chaparral is found mainly on the upper slopes and higher elevations in the mountain ranges. Common species include hoaryleaf ceanothus (Ceanothus crassifolius), mountain mahogany (Cercocarpus betu- loides), and coast live oak (Quercus chrysolepis). Within the project area, chaparral stands are scattered on upper mountainsides, particularly along the upper East Twin and Strawberry Creek canyon area, and in the upper reaches of West Twin Creek/Waterman Canyon. Riparian Woodlands Riparian areas occur along main drainages of the site (East Twin Creek, Strawberry Creek, West Twin Creek/ Waterman Canyon), and an unnamed drainage to the west of State Route 18) and include sycamore alder woodland, and sycamore willow woodlands. East Twin Creek and Strawberry Creek support sycamore alder woodland habitat consisting of riparian tree and scrub species, such as white alder (Alnus rhombifolia), black willow (Salix gooddingil), sycamore (Platanus racemosa), and California walnut (Juglans californica). What appears to be cultivated fig is also found in these drainages. The understory in East Twin Creek is mostly made up of herbaceous species such as red monkeyflower (Mimulus cardinalis), California mugwort (Artemisia douglasiana), white-flowered deadly nightshade (Solanum dougliasiana), and poison oak (Toxicodendron deversilobum). Shrubs along the canyon sides include mountain mahogany, California brickellia (Brickellia californica), and hoaryleaf ceanothus. Further downstream, near the junction with West Twin Creek, alders disappear and the stand becomes sycamore willow woodland. Riparian woodland in West Twin Creek/Waterman Canyon ranges from open to moderately dense cover. Tree species include red willow (Salix laevigata), arroyo willow (Salix lasiolepis), General Plan Update and Associated Specific Plans EIR City of San Bernardino. Page 5.3-23 5. Environmental Analysis sycamore, and California walnut. California bay (Unbellularia californica) and coast live oak trees are occasionally found on the upper hillsides of West Twin Creek/Waterman Canyon. The understory in West Twin Creek/Waterman Canyon is limited, formed mostly by herbaceous species such as croton (Croton californica), poison oak, and non-native grasses. The unnamed drainage is dominated by sycamore and red willow, with at least one tamarisk (Tamarix sp.) present. The herbaceous understory is dominated by non-native grasses and a dense stand of short-seeded ryegrass (Leymus condensatus). Southern cottonwood willow riparian forest and Southern mixed riparian forest were not found during the field surveys. Lower Montane Coniferous Forest Lower montane coniferous forest is dominated by Coulter pine (Pinus coulten), manzanita (Artostaphylos sp.), coast live oak, and occasional stands of scrub oak. Understory in unburned stands of this plant com- munity is relatively non-existent, consisting mostly of grasses (Bromus ssp.). This community is confined to the upper reaches of West Twin Creek/Waterman Canyon, on the western slopes of the canyon. Disturbed and Ruderal. Plant species within this community consists of weedy grasses such as red brome (Bromus madritensis) and Mediterranean grass (Schismus barbatus), and weedy forbs such as short-podded mustard (Hirschfeldia incana), Russian thistle (Salsola tragus) and tocalote (Centaurea melitensis). Native species include doveweed (Eremocarpus setigerus), telegraph weed (Heterotheca grandiflora), and twiggy wreath plant (Stephanomeria virgata). Disturbed, ruderal and landscaped plant communities occupy most of the grounds of the Arrowhead Springs Hotel and Spa. Native plant cover in these areas is very sparse. Landscape/Non-native Landscape Non-native landscaping includes five species of palm (species unknown), eucalyptus species (Eucalyptus globulus), Peruvian pepper tree (Schinus molle) , fruits trees (apricot, apple, peach) non-native oaks (Quercus ssp.), pines (Pinus ssp.), citrus trees (lemon, orange, grapefruit), olive and other landscape trees and shrubs. Most of the individual plants found on site are either remnant plantings from the former Arrowhead Springs Spa. Some species have invaded the native habitats around the grounds. On the grounds of the former Arrowhead Springs Spa and Hotel, there are at least two artificial ponds that were filled with water at the time of the survey. One pond is located in the southernmost portion of the property, just north of existing spreading/percolation basins. No native vegetation exists within the pond. The pond is within an area that appears to have been previously graded and contoured for a development that did not materialize (shown as VRD on figure 5.3-3). The pond is near mixed annual grassland and scrub to the east and north and a strip of southern willow riparian habitat to the northwest. To the south, between the pond and the percolation basins are several groves of large, mature trees and disturbed areas associated with the abandoned development. The second pond is Lake Vonette along the main access road into the spa and hotel facilities, which is actually a dam formed by construction of the roadway. This water body is surrounded by plantings of [non-native] Scotch broom (Spartium junceum), pampas grass (Cortaderia selloana) and a ring of palm trees. Downstream of Lake Vonette is a low area that supports a dense stand of cattail (Typha latifolia) and weedy grasses. This area appears to receive sufficient water to maintain this (apparently) artificial herbaceous wetland. Hot Springs Within the project site, natural hot springs, such as the steam cave area occur. Natural hot springs provide specialized environments for wildlife and plant species, however, the springs on the property have been modified from their native state as part of the spa facilities. As a result, the only drainage containing a semi- Page 5.3-24 . The Planning Center July 2005 5. Environmental Analysis natural habitat is the Steam Caves drainage. This drainage is known to support thread-leaved brodieae (Brodiaea filifolia), and may support other sensitive plant species. Plants Species A total of ninety-six (96) native and non-native plant species representing 39 families were observed on the site. Of these species, 68 are native and 28 are non-native. A list of plant species observed on the site is included in Appendix A of the Biological Resources Assessment report (Volume III, Appendix B of this DEI R). Wildlife Species Wildlife species observed during the field surveys are also listed in Appendix A of the Biological Resources Assessment report (Volume III, Appendix B of this DEIR). A total of 37 species of wildlife (insects, reptiles, birds, and mammals) were noted. The site has limited potential to support amphibian species along the drainages and in moister areas. Amphibian species expected to occur include California tree frog (Hyla regilla) and western toad (Bufo boreas). Sensitive Resources Four sensitive plant communities were reported in the CNDDB for the San Bernardino North and Harrison Mountain 7.5-minute topographic quadrangles including 1) Riversidean alluvial fan sage scrub (RAFSS); 2) Southern [mixed] riparian forest; 3) Southern cottonwood willow riparian forest; and 4) Southern sycamore alder riparian woodland. Within the project site, RAFSS was determined to be marginally present in the lower reaches of West Twin Creek/Waterman Canyon and East Twin Creek; and southern sycamore alder riparian woodland was present in East Twin Creek and Strawberry Creek. ~ The CNDDB also lists recorded occurrences of sensitive plant and wildlife species within the area of the Arrowhead Springs project site. Based on the assessment of the habitats present, the CNDDB search, and results of the field surveys, a total of 22 sensitive plant species and 42 sensitive wildlife species were identified as having high, moderate, or low potential to occur on the project site (shown in Table 5.3-4). One fish species, speckled dace (Rhinichthys osculus ssp. 3) was identified as present. The potential for one species, the Santa Ana sucker (Catostomus santaanae), to occur is unknown. Five sensitive plant species and five (5) sensitive wildlife species have no potential to occur on the site due to lack of suitable habitat to support the species. Sensitive species that were not observed during the surveys and have a low potential to occur are not likely to be present within the project area. General Plan Update and Associated Specific Plans EIR City of San Bernardino. Page 5.3-25 5. Environmental Analysis Table 5.3-4 Sensitive Biological Resources - Arrowhead Springs Specific Plan Resource Status (Common/Scientific Name) Designation Occurrence/Probability VEfJETATlfJN C0MMt!JNITIES Riversidian alluvial fan sage scrub Declining plant Marginally present in the lower reaches of West Twin community Creek/Waterman Creek and East Twin Creek. Southern mixed riparian forest Declining plant Not Present. community Southern cottonwood willow riparian Declining plant Not Present. forest community Southern sycamore alder riparian Declining plant Present. woodland '~J/.,','''ii;'Yi;i; Marsh sandwort FED: END None. Although there may be boggy places in and around the Arenaria paludicola STATE: END Arrowhead Springs Hotel, the area is probably too high in elevation CNPS: 1 B and too steep to provide suitable habitat. Nevin's barberry FED: END Low. This species seems to prefer drier slopes; however, it could Berberis nevinii STATE: END potentially occur on the hillsides along the upper drainages. CNPS: 1 B Thread-leaved brodiaea FED: THR High. Species has been found in the vicinity of the Arrowhead Brodiaea filifolia STATE: END Springs Hotel on clay soils probably inundated by warm water. CNPS: 1 B Orcutt's brodiaea FED:C2* Low. This species is not known from San Bernardino County; Brodiaea orcutti STATE: None however, suitable habitat exists on the hills within the project area CNPS: 1 B around the Arrowhead Springs Hotel. Palmer's mariposa lily FED:C2* Low. The project area does not support true meadows or moist Calochortus palmeri var. palmeri STATE: None places, however there may be moist places in and around the CNPS: List 1 B Arrowhead Springs Hotel. Plummer's mariposa lily FED:C2* Moderate. Site supports suitable habitat in the hillside areas. Calochortus plummerae STATE: None CNPS: 1 B Intermediate mariposa lily FED:C2* Low. Species is not known from San Bernardino County, butthe site Calochortus weedii var. intermedius STATE: None supports suitable habitat in the hillside areas of the property. CNPS: 1 B Bristly sedge FED: None Low. There may be habitat in and around the Arrowhead Springs Carex comosa STATE: None Hotel. CNPS: 2 San Bernardino Mountains owl's FED:C2* None. No meadows exist within the project areas; the development clover STATE: None portions of the site are too low and lacks pine forest meadow habitat. Castilleja lasiorhyncha CNPS: 1 B Smooth tarplant FED:C2* Moderate. Site contains suitable alkaline soils around the Arrowhead Centromadia pungens ssp.laevis STATE: None Springs Hotel. There are riparian areas for this species within CNPS: 1 B drainages. Parry's spineflower FED:C2* Moderate. Suitable habitat exists for this species. Chorizanthe parryi var. parryi STATE: None CNPS: 3 Long-spined spineflower FED: None Low. Suitable habitat exists on site however this species is not Chorizanthe polygonoides var. STATE: None recorded from San Bernardino County. longispina CNPS: 1 B Summer holly FED: None High. Chaparral and chamise chaparral is extensive in the hills around Comarostaphylis diversifolia ssp. STATE: None the development. diversifolia CNPS: 1 B Page 5.3-26 . The Planning Center July 2005 5. Environmental Analysis Table 5.3-4 Sensitive Biological Resources - Arrowhead Springs Specific Plan Resource Status (Common/Scientific Name) Designation Occurrence/Probability Salt marsh bird's beak FED: END None. No suitable habitat exists on site. Although historical records Cordylanthus maritimus ssp. STATE: END exist for this site, the records are questionable since this area is maritimus CNPS: 1 B atypical for this species and the only locality description provided is "San Bernardino Valley." Slender-horned spineflower FED: END Low. Suitable sandy and gravelly soils have been significantly Dodecahema leptoceras STATE: END impacted by flood control measures; however, it may be present in CNPS: 1 B the lower reaches of West Twin CreekjWaterman and East Twin Creeks. Many-stemmed dudleya FED:C2* Moderate. This species may be present on the hillsides within the Dudleya multicaulis STATE: None project area. CNPS: 1 B Santa Ana River woolly star FED: END Low. There is no alluvial fan scrub on site; however, the lower Eriastrum densifolium var. sanctorum STATE: END reaches of West Twin Creek/Waterman and East Twin Creeks may CNPS: 1 B provide sufficient alluvial soils for this species. Hot springs fimbristylis FED: None None. Only known locality within the project area is atthe Arrowhead Fimbristylis thermalis STATE: None Hot Springs. This area was checked in 1993 and the population CNPS: 1 B apparently had been extirpated. Robinson's pepper-grass FED: None Moderate. Suitable habitat on site. Lepidium vriginicum ssp. Robinsonii STATE: None CNPS: 1 B Parish's desert-thorn FED: None Low. Recent data suggestthat known populations from the lower Lycium parishii STATE: None slopes of the San Bernardino Mountains are probably extirpated. CNPS: 2 San Bernardino Mountains FED:C2* Low. Little is known aboutthis species. It could occur in the moist monkeyflower STATE: None areas around the Arrowhead Springs Hotel. Mimulus exiguous CNPS: 1 B Hall's monardella FED:C2* Low. This species is generally found only at higher elevations, and Monardella macrantha spp. hallii STATE: None may be present on the higher slopes of the property. CNPS: 1 B California muhly FED: None Moderate. Suitable habitat exists within the project area along the Muhlenbergia californica STATE: None drainages. CNPS: 1 B Parish's yampah FED: None None. The project area does not support the damp meadows and is Perideridia parishii ssp. parishii STATE: None below the known elevation range. CNPS: 2 Parish's gooseberry FED:C2* Low. Site does not have true thickets or swamps. Ribes divaricatum var. parishii STATE: None CNPS: 1 B Gambel's water cress FED: None Moderate. Suitable habitat may be present in the upper reaches of Rorippa gambelii STATE: None West Twin CreekjWaterman Canyon within the project area. CNPS: 2 Sonoran Maiden fern FED: None Moderate. Suitable habitat may be present in the upper reaches of Thelypteris puberula var. sonorensis STATE:CSC West Twin CreekjWaterman Canyon within the project area. CNPS: 2 General Plan Update and Associated Specific Plans EIR City of San Bernardino . Page 5.3-27 ~ 5. Environmental Analysis Table 5.3-4 Sensitive Biological Resources - Arrowhead Springs Specific Plan Resource Status (Common/Scientific Name) Designation Occurrence/Probability FISH Santa Ana sucker Catostomus santaanae Speckled dace Rhinichthys osculus ssp. 3 FED: THR STATE:CSC FED: None STATE:CSC FS: Sensitive Unknown. Depth may be too shallow to support this species. Present. This species is know from Strawberry Creek and may be present in East Twin Creek and West Twin Creek/Waterman Canyon. AMPHIBIANS San Gabriel slender salamander FED: None Moderate. Suitable habitat may be present in the upper reaches of Batrachoseps gabrieli STATE: None West Twin CreekjWaterman Canyon within the project area. Western spadefoot FED: None Low. Suitable ponded water habitat may exist along West Twin Scaphiopus hammondii STATE:CSC CreekjWaterman Canyon and East Twin Creek. Suitable habitat also may exist in the isolated pond on the former grounds of the Arrowhead Springs Hotel. Arroyo toad FED: END Low. Suitable water habitat may exist along West Twin Buro microscaphus STATE:CSC CreekjWaterman Canyon and East Twin Creek. Suitable habitat also may exist in the isolated pond on the former grounds of the Arrowhead Springs Hotel. California red-legged frog FED: THR Moderate. Suitable water habitat may exist along West Twin Rana aurora draytonii STATE:CSC Creek/Waterman Canyon and East Twin Creek. Mountain yellow-legged frog FED: PE High. Suitable water habitat may exist along West Twin Rana muscosa STATE:CSC Creek/Waterman Canyon and East Twin Creek. REPTILES Southwestern pond turtle FED: None Low. Basking sites may be absent except in the upper West Twin Clemmys marmorata pallida STATE:CSC Creek/Waterman Canyon area. San Diego horned lizard FED: None High. Suitable habitat exists throughout the project area. Phrynosoma coronatum blainvillei STATE:CSC Coronado skink FED: None High. Suitable habitat exists throughout the project area. Eumeces skiltonianus interparietalis STATE:CSC Orange-throated whiptail FED: None High. Suitable habitat exists throughout the project area. Cnemidophorus hyperythrus STATE:CSC Coastal western whiptail FED: None High. Suitable habitat exists throughout the project area. Cnemidophorus tigris multiscutatus STATE: None Silvery legless lizard FED: None Low. Although sandy soils occur on site, abundant leaf litter Anniella pulchra pulchra STATE:CSC (providing a humid microclimate) does not exist on site. Southern rubber boa FED: C2* None. Site does not contain conifer woodland habitat. (Charina bottae umbratica) STATE: THR US Forest Service Species of Concern Rosy boa FED: None High. Suitable habitat exists throughout the project area. Lichanura trivirgata STATE: None Coast patch-nosed snake FED: None High. Suitable habitat exists throughout the project area. Salvador a hexalepis virgultea STATE:CSC Two-striped garter snake FED: None Low. Suitable habitat exists north of 40th Street and in the upper Thamnophis hammondii STATE:CSC reaches of West Twin Creek/Waterman Canyon. Suitable habitat also may exist in the isolated pond on the former grounds of the Arrowhead Springs Hotel. Northern red-diamond rattlesnake FED:C2* High. Suitable habitat exists throughout the project area. Crotalus exsul STATE:CSC Page 5.3-28 . The Planning Center July 2005 5. Environmental Analysis Table 5.3-4 Sensitive Biological Resources - Arrowhead Springs Specific Plan Resource Status (Common/Scientific Name) Designation Occurrence/Probability BIRDS White-tailed kite FED: None Moderate. Property terrain may be too uneven for this species to Elanus leucurus STATE: None forage. (nesting) Bald eagle FED: END Low. Species is known to winter at Big Bear Lake; during winter, Haliaeetus leucocephalus STATE: END could fly over site or perch in riparian woodland. Northern harrier FED: None Present. Observed during the surveys. Forages over a wide range of Circus cyaneus STATE:CSC open habitat and can be expected to occur throughout most of Southern California. Although no nesting habitat was found, some foraging habitat exists on site. Sharp-shinned hawk FED: None Low. Not observed during the surveys, but are expected to forage Accipiter striatus STATE:CSC infrequently over the property during migration and in winter. Cooper's hawk FED: None Moderate. Suitable nesting and foraging habitat exists within the Accipiter cooperi STATE:CSC project area. Golden eagle FED: None Low. Not observed during the surveys. Foraging habitat for this Aquila chrysaetos STATE: CSC (nesting species exists over the entire property. No suitable nesting habitat and wintering) occurs on site. Merlin FED: None Low. Not observed during the surveys. Can be expected to forage Falco columbarius STATE:CSC over the site during migration and in winter. They are expected to use the area very infrequently. American peregrine falcon FED: None Low. Species passes through region during migration and may Falco peregrinus anatum STATE: END winter in region; during migration or winter, could fly over site, perch in riparian woodland, and/or forage in surrounding habitats including site. Prairie falcon FED: None Low. Not observed during the surveys. Foraging habitat exists for this Falco mexicanus STATE:CSC species over the property, butthere is no suitable nesting habitat. Burrowing owl FED: None None. No suitable burrowing habitat exists within the project area. Athene cunicularia hypugea STATE:CSC This species may forage on site and in adjacent areas. Long-eared owl FED: None Low. Foraging habitat exists on the property, but no nesting habitat. Asio otus STATE:CSC Black swift FED: None Moderate. This species may be in the upper reaches of West Twin Cypseloides niger STATE:CSC CreekjWaterman and East Twin Creek. California gnatcatcher FED: THR None. No suitable habitat occurs on site. Polioptila californica STATE: None Loggerhead shrike FED: None Moderate. This species may nest within the and may forage in this Lanius ludovicianus STATE:CSC area in winter. Southern California rufous-c rowned FED: None Moderate. Suitable grassland/scrub habitat mix exists in limited areas sparrow STATE:CSC within the project area. Aimophila ruficeps canescens MAMMALS Western yellow bat FED: None Low. This is a low elevation species that may occasionally use the Lasiurus xanthinus State: None palm trees on site. Townsend's western big-eared bat FED: None Moderate. Because there are a few suitable roost sites in the project Plecotus townsendii, two ssp. STATE:CSC area, this species may roost on the property. It may also forage over the property if there are roosting sites such as caves in the nearby mountains. Pallid bat FED: None Moderate. Because there are a few suitable roost sites in the project Antrozous pallidus STATE:CSC area, this species may roost on the property. It may also forage over the property if there are roosting sites such as caves in the nearby mountains. General Plan Update and Associated Specific Plans EIR City of San Bernardino. Page 5.3-29 ~ 5. Environmental Analysis Table 5.3-4 Sensitive Biological Resources - Arrowhead Springs Specific Plan Resource Status (Common/Scientific Name) Designation Occurrence/Probability Spotted bat FED: None Moderate. Because there are a few suitable roost sites in the project Euderma maculatum STATE:CSC area, this species may roost on the property. It may also forage over the property if there are roosting sites such as caves in the nearby mountains. California mastiff bat FED: None Moderate. Because there are a few suitable roost sites in the project Eumops perotis calitornicus STATE:CSC area, this species may roost on the property. It may also forage over the property if there are roosting sites such as caves in the nearby mountains. Big free-tailed bat FED: None Moderate. Because there are a few suitable roost sites in the project Nyctinomops macrotis STATE:CSC area, this species may roost on the property. It may also forage over the property if there are roosting sites such as caves in the nearby mountains. San Diego black-tailed jackrabbit FED: None Low. Scrub cover on this site may be too dense in normal years for Lepus calitornicus bennettii STATE:CSC this species to persist. Los Angeles pocket mouse FED: None Moderate. Suitable habitat exists throughout the project area along Perognathus longimembris STATE:CSC the drainages and in the flood control basins. brevinasus San Bernardino flying squirrel FED: None None. Canopy cover not suitable for this species. Species is known Glaucomy sabrinus calitornicus STATE: CSC to occur nearby at higher elevations. U.S. Forest Service Sensitive Species White-eared pocket mouse FED: None None. Site does not contain pine forest habitat. Perognathus alticola alticola STATE:CSC Northwestern San Diego pocket FED: None High. Suitable habitat exists throughout the project area in the mouse STATE:CSC grassland and scrub habitats. Chaetodipus tal/ax tal/ax San Bernardino kangaroo rat FED: END Low. Suitable alluvial scrub habitat exists throughout the project area Dipodomys merriami parvus STATE: None along the lower sections of the drainages. San Diego desert wood rat FED: None High. Suitable habitat exists throughout the scrub habitats of the Neotoma lepida intermedia STATE:CSC project area. Grasshopper mouse FED: None Low. Suitable habitat exists, but based on the preferred habitat, this Onychomys torridus ramona STATE:CSC species may be further east. Nelson's bighorn sheep FED: END, DPS* Low. Sheep probably are present in the vicinity of the property, but it Ovis canadensis nelsoni STATE: THR is unlikely they would be present or use the developed areas of the site. They may occur in the upper reaches of Strawberry and East Twin Creek. American badger FED: NONE Low. May be present in higher reaches of Strawberry and East Twin Taxidea taxus STATE:CSC Creek. Sighting from Running Springs. FED: Federal Classifications STATE: State Classifications END Taxa listed as endangered END Taxa listed as endangered THR Taxa listed as threatened THR Taxa listed as threatened PE Taxa proposed to be listed as endangered CE Candidate for endangered listing PT Taxa proposed to be listed as threatened CT Candidate for threatened listing C2* USFWS may, in the future, designate such taxa as Candidates. (*) CFP California Fully Protected. Fully indicates those C2 candidates that were removed from the list. CSC California Species of Special Concern. C Candidate for listing. SA Special Animal. Taxa of concern to the California Natural None Not designated as a sensitive species Diversity Data Base regardless of their current legal or DPS Distinct Population Segment. protected status. None Not designated as a sensitive species Page 5.3-30 . The Planning Center July 2005 5. Environmental Analysis Table 5.3-4 Sensitive Biological Resources - Arrowhead Springs Specific Plan Resource Status (Common/Scientific Name) Designation Occurrence/Probability CNPS: California Native Plant Society Classifications 1A Plants presumed by CNPS to be extinct in California 1 B Plants considered by CNPS to be rare or endangered in California and elsewhere 2 Plants considered by CNPS to be rare, threatened or endangered in California, but which are more common elsewhere 3 Review list of plants suggested by CNPS for consideration as endangered but about which more information is needed. 4 Watch list of plants of limited distribution whose status should be monitored. Occurrence Probabilities Occurs: Observed on the site during this study or recorded on site by other qualified biologists. Expected: Not observed or recorded on site, but likely to be present at least during a portion of the year. High: Known to occur in the vicinity of the project site. Suitable habitat exists on site. Moderate: Known to occur in the vicinity of the project site. Small areas of or marginally suitable habitat exists on site. Low: No reported sightings within the vicinity of the project. Available habitat limited and rarely used. None: Focused surveys did not locate the species, or suitable habitat does not exist on site. Unknown: No data is available on whether species is on or in the vicinity of the site, and information about the species is insufficient to make an accurate assessment of probability/occurrence. Distribution whose status should be monitored. NA - Not Applicable Wildlife Corridors Wildlife movement (more properly recognized as species movement) is the temporal movement of species along various types of corridors. Wildlife corridors are especially important for connecting wildlife habitat areas that have become fragmented; Le., larger habitat areas broken up into smaller areas that mayor may not be capable of independently sustaining wildlife and plant populations. Major wildlife corridors on the property probably existed along West Twin Creek/Waterman Canyon and East Twin Creek, prior to the residential development of northern San Bernardino and the construction of flood control basins downstream from the confluence of West Twin Creek/Waterman Canyon and East Twin Creek. Although wildlife movement very likely still occurs up and down the main stems of West Twin Creek/Waterman Canyon and East Twin Creek, the abrupt termination of these drainages in the flood control basins, and the presence of the Arrowhead Springs Hotel and Spa has somewhat constrained north-south wildlife movement along drainages and mountain slopes down to the valley bottom. North-south movement probably still occurs north up into the San Bernardino Mountains by way of the drainages and mountain slopes. Water is a limited resource in southern California, and the presence of pools and drainages attracts numerous wildlife species for foraging and nesting. Any movement along east-west corridors is probably still occurring up the northeastern-most portions of East Twin Creek and Strawberry Creek although it may be somewhat affected by the Arrowhead Springs Hotel and Spa to the east and State Route 18 to the west. Habitat loss has already occurred in the main portion of the property. The open space area around the existing hotel grounds is a large, contiguous, somewhat natural habitat that ultimately connects with the chaparral and conifer habitats of the San Bernardino Mountains. Jurisdictional Waters and Wetlands East Twin Creek, Strawberry Creek, West Twin Creek, their tributaries and additional unnamed drainages occur on the property (Figure 5.3-4, Potential Jurisdictional Waters, Arrowhead Springs Specific Plan). Based on the assessment of jurisdictional areas for the site, it was estimated that approximately 128 acres of potential jurisdictional drainages occur within the project site along approximately 85,936 linear feet of stream/drainages. The various riparian habitats along some of these drainages may also be wetlands, depending upon the type of soils, hydrology, and plant species present. East Twin Creek, Strawberry Creek, West Twin Creek and their tributaries meet the USACE definition of jurisdictional waters because of the General Plan Update and Associated Specific Plans EIR City of San Bernardino . Page 5.3-31 ~ 5. Environmental Analysis presence of water flow and the continuous connection to the Santa Ana River through the East Twin Creek flood control channel. The riparian woodlands within these drainages would likely fall under the jurisdiction of the USACE as wetland habitat. The unnamed drainage along State Route 18 probably does not come under the jurisdiction of the USACE because it lacks a connection to a jurisdictional drainage. Flow from the drainage apparently terminates in a spreading basin area just south of State Route 18, although this could not be verified during the field surveys. East Twin Creek, Strawberry Creek, West Twin Creek, and their tributaries would also fall under the CDFG jurisdiction due to the definable presence of bed and banks and the presence of riparian vegetation. The riparian woodlands would also come under the jurisdiction of the CDFG because of their value to wildlife and connection to a jurisdictional drainage. Additional drainages, such as the unnamed drainage along State Route 18, may also come under the jurisdiction of the CDFG. The artificial ponds, including Lake Vonette, may come under CDFG jurisdiction because of their potential value to wildlife. 5.3.2 Thresholds of Significance According to Appendix G of the CEQA Guidelines, a project would normally have a significant effect on the environment if the project would: B-1 Have a substantial 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 the California Department of Fish and Game or U.S. Fish and Wildlife Service. B-2 Have a substantial adverse effect on any riparian habitat or other sensitive natural community identified in local or regional plans, policies, regulations or by the California Department of Fish and Game or U.S. Fish and Wildlife Service. B-3 Have a substantial adverse effect on federally protected wetlands as defined by Section 404 of the Clean Water Act (including, but not limited to marsh, vernal pool, coastal, etc.) through direct removal, filling, hydrological interruption, or other means. B-4 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. B-5 Conflict with any local policies or ordinances protecting biological resources, such as a tree preservation policy or ordinance. B-6 Conflict with the provisions of an adopted habitat Conservation Plan, Natural Community Conservation Plan, or other approved local, regional, or state habitat conservation plan. Page 5.3-32 . The Planning Center July 2005 ~ .~ t ~ ~ ~ ~ ~ ~ t i C" ~ '" Q '" < z is w OJ I C) >. ~ "'" w 15. ~ -I 0 is:. (:) ~ ~ \ ~ t<l "" (f) ~ ~ ~ .~ ~ .~ ~ .~ .~ ~ CJl ~ (\) K ~ ~ ~ () ~ E a:I ~ .~ .$ ~ ~ (j) )\aaJO lJ!"'1t. I .$ ~ ~ '1i5 ~ c: ~ ~ ~ ~ ~ (\) ~ .x ~ j ~ ~ ~ ~ . .... ~ J,. ~ ~ . J,. lr\ 0<:'- 00-<:'-~ Waterr1\'a<:'-'"'''e """"",,,.. ",,"'"A"'., ">.'nl '"'~ '''~"'. .mt"'l" ,~,~/U"''''' f'\' , ul (!) (\) E ~ a:I c: 2 .~ ::>0 ~ , C") u; Q) "" EJ ::3 ,~ L&. . ~ ..... s;:, '" v ;; b(J s;:, ~ '", u.. s;:, s;:, '" ~ Q., '" '" ::.Q 3. N I . ~ ~ t: ~ ~ ~ ~ ~ 1l ..... .~ ~ :::: ~ ~ ~ ~ ~ ":j s s;:, ~ ~ "-- ~ '" s;:, C5 '" s;:, ~ ~ 'i:; r:o s;:, Jl 5. Environmental Analysis This page left intentionally blank. Page 5.3-34 . The Planning Center July 2005 5. Environmental Analysis 5.3.3 Environmental Impacts 5.3.3.1 San Bernardino General Plan Update The following impact analysis addresses thresholds of significance for which the Initial Study disclosed potentially significant impacts. The applicable thresholds are identified in parentheses after the impact statement. GP IMPACT 5.3-1: DEVELOPMENT IN ACCORDANCE WITH THE PROPOSED GENERAL PLAN UPDATE LAND USE DESIGNATIONS WOULD POTENTIALLY RESULT IN THE LOSS OF SENSITIVE VEGETA TION COMMUNITIES AND SENSITIVE SPECIES IN UNDEVELOPED PORTIONS OF THE CITY AND SOl. [THRESHOLD B-1J Impact Analysis: Sensitive vegetation communities in the City and its SOl include coastal sage scrub, Riversidean alluvial fan sage scrub, riparian areas, riparian woodlands and forests, and wetlands. In addition, a number of sensitive plant and animal species are known to occur or have the potential to occur within the City and SOl, particularly in the undeveloped portions to the north. Land within this area, including the foothills and drainages of the San Bernardino Mountains, provides important foraging, dispersal, migratory, and wildlife corridors for many sensitive species. Implementation ofthe General Plan Update would not result in the direct removal of these sensitive vegetation communities because the General Plan does not infer direct development rights. However, development in accordance with the General Plan Update could allow for the introduction of primarily residential and commercial land uses into largely undisturbed areas. Such construction has the potential to have direct and indirect impacts on sensitive vegetation communities and individual plant species. The major impact would be the removal of vegetation for building pad development and building and roadway construction. Direct and indirect impacts to sensitive species would result from the elimination of habitat and food resources through vegetation removal. Other potential impacts could increase incidence of fire due to human activities and increased erosion from roadways; the introduction of non-native weedy and insect species, and domestic animal species; increased competition from non-native species that could affect other species ability to forage or establish territories; and increased levels of predation resulting from modifications to on-site topography. ~ There are limited native biological resources present within the developed portions of the City. Therefore development and redevelopment in accordance with the preferred land use plan would not result in substantial removal or loss of sensitive habitats or species in the urbanized areas of the City. Per the General Plan update, industrial uses, notably aggregate extraction, would be allowed in the north- western portion of the City including Lytle Creek/Cajon Creek. While parts of this broad, flat wash have been modified by mining activities and is traversed by several rail lines, expansion of existing aggregate mining activities within Lytle Creek/Cajon Creek could potentially impact sensitive alluvial fan scrub habitat and species including the federally-listed slender-horned spineflower. The land use designations for the undeveloped hillside and mountain areas to the north would remain as Residential Estate, Residential Low, Public Flood Control, and Open Space, per the proposed General Plan update. Hillside Management and Foothill Fire Zone Overlays would also be applied. Vegetation com- munities and sensitive species within the designated Open Space areas associated with Borea Canyon and Cook Canyon would not be impacted. Any additional construction of public flood control facilities within the area traversed by Devil Canyon could potentially remove native habitat and sensitive species upon implementation per the General Plan land use designations. Within the residential designations, approximately 95,664 total residential units could be developed within the City and SOlon approximately 18,856 acres. The Hillside Overlay would protect biological resources by excluding development in parcels exceeding 15 percent natural slope, protecting natural drainage courses, and requiring preservation, General Plan Update and Associated Specific Plans EIR City of San Bernardino . Page 5.3-35 5. Environmental Analysis wherever possible, of natural vegetation and mature trees identified in subsequent environmental review. However, low density development would still occur with implementation in accordance with the General Plan update, ultimately resulting in the removal of sensitive habitat and species. Designated critical habitat for San Bernardino kangaroo rat and California gnatcatcher overlay portions ofthe City. The City overlays the westernmost extent of Critical Habitat Unit 1 (Santa Ana River and San Timoteo Canyon) which roughly covers the areas encompassing City Creek, Plunge Creek, and the Santa Ana River wash. It contains tributaries, flood plain terraces and active hydrological channels. Unit 2 (Lytle and Cajon Creeks) roughly covers habitat along and between Lytle and Cajon Creeks from the point that the creeks emanate from canyons within San Bernardino National Forest to flood control channels downstream. The northwestern most portins of the City are located within Unit 2. Portions ofthe City are located within Critical Habitat Unit 11 (San Bernardino Valley MSHCP) which roughly covers approximately 58,000 acres along the foothills ofthe San Gabriel and San Bernardino Mountains and within the Jurupa Hills on the border of San Bernardino and Riverside counties. Undeveloped areas from the northwestern most portion of the City to the northeastern most portion are located within California gnatcatcher critical habitat. Areas that would be retained as Open Space per the proposed General Plan Update land use plan would not conflict with existing critical habitat areas, including portions of the Arrowhead Springs area and a small area in the northeastern most extent of the City north of Cook Canyon and east of SR 330. Areas proposed for development that overlap with designated critical habitat for these two species include portions of the foothills to the north designated as residential; areas adjacent to the Santa Ana River designated for commercial and industrial uses; and portions of Lytle Creek/Cajon Creek to the northwest where industrial (aggregate extraction) uses are designated. The critical habitat designation would not have any impact on private development. Removal of critical habitat through implementation of federal projects within the City would potentially impact listed and sensitive species. Project applicants would be required to consult with the USFWS regarding potential impacts to listed species that the habitats may support, and to comply with regulatory requirements, including permitting, to offset identified impacts. Impacts resulting from development of the Arrowhead Springs Specific Plan are addressed separately in the following Section 5.3.3.2. The majority of potential impacts to sensitive vegetation communities and plant and animal species would occur as a result of project-specific activities developed pursuant to the General Plan update. To minimize the impacts to sensitive plant communities and wildlife species, the General Plan Update establishes goals and policies related to the protection of open space and wildlife habitat. In addition, at the time individual development applications are submitted, the City will assess development proposals for potential impacts to significant natural resources pursuant to CEQA and associated State and Federal regulations and City ordinances. Future proposed development throughout the City would need to be reviewed for compliance with resource agency (including USFWS and CDFG) requirements. GP IMPACT 5.3-2: DEVELOPMENT IN ACCORDANCE WITH THE PROPOSED GENERAL PLAN UPDATE LAND USE DESIGNATIONS WOULD POTENTIALLY RESULT IN THE LOSS OF RIPARIAN HABITAT IN UNDEVELOPED PORTIONS OF THE CITY AND SOl. [THRESHOLD B-2J Impact Analysis: Riparian habitat within the City and SOl is potentially present along the Santa Ana River, Lytle Creek/Cajon Creek, City Creek, the canyons and drainages in the foothills of the San Bernardino Moun- tains, and to a lesser extent within open flood control channels that traverse the City. Portions of riparian habitat associated with Badger Canyon, West Twin Creek, East Twin Creek, Strawberry Creek, and Cook Canyon are currently protected as Open Space. The General Plan Update would retain the areas designated Page 5.3-36 . The Planning Center July 2005 5. Environmental Analysis as Open Space. Since no development would be allowed in these designated open space areas, no impacts would occur to riparian habitat and sensitive species that that the habitat supports. Undeveloped areas associated with Devil Canyon in the northernmost portion of the City would be desig- nated as Public Flood Control. While no private use or development would be allowed within this designa- tion, future construction of flood control facilities could potentially impact riparian habitat. Low density development in the northern undeveloped portions of the City would be allowed in accordance with the General Plan Update residential designations. Low density development could potentially impact riparian corridors and habitat within these areas. The current Hillside Management Overlay would afford some protection for natural drainage courses and riparian habitat in these areas. All areas designated for development that have riparian habitat present would be subject to current regulations protecting riparian habitat including Section 404 permits from the USACE, USFWS review, and CDFG regulations under Section 1600. In the future, adoption of the San Bernardino Valley wide MSHCP, and participation by the City would provide additional protection for habitat, including riparian habitat, and sensitive species within undeveloped portions of the City and SOl. GP IMPACT 5.3-3: DEVELOPMENT IN ACCORDANCE WITH THE PROPOSED GENERAL PLAN UPDATE LAND USE DESIGNATIONS COULD IMPACT USACE AND CDFG JURISDICTIONAL WATERS IN UNDEVELOPED PORTIONS OF THE CITY AND SOl. [THRESHOLD B-3J Impact Analysis: Potential USACE and CDFG jurisdictional waters and wetlands within the City and SOl are also present along the Santa Ana River, Lytle Creek/Cajon Creek, City Creek, the canyons and drainages in the foothills of the San Bernardino Mountains, and the open flood control channels that traverse the City. Drainages associated with Badger Canyon, West Twin Creek, East Twin Creek, Strawberry Creek, and Cook Canyon are currently protected as Open Space and would retain the Open Space designation upon implementation of the General Plan Update. ~ Future construction of flood control facilities in the undeveloped areas of Devil Canyon to the north could occur with implementation of the General Plan Update in accordance with the Public Flood Facilities land use designation. Expansion of mineral extraction activities in accordance with the Industrial Extraction land use designation would potentially impact USACE and CDFG jurisdictional waters within Lytle Creek/Cajon Creek. Low density development in the northern undeveloped portions of the City would be allowed in accordance with the General Plan Update residential designations. Low density development could potentially impact drainages within these areas. The current Hillside Management Overlay would afford some protection for natural drainage courses and riparian habitat in these areas. Other areas designated for development would be subject to current regulations protecting waters and wetlands, including the requirements of applicable Section 404 permits from the USACE, USFWS review, Section 401 water quality certification, and CDFG 1600 Streambed Alteration Agreements. GP IMPACT 5.3-4: DEVELOPMENT IN ACCORDANCE WITH THE PROPOSED GENERAL PLAN LAND USE DESIGNATIONS WOULD POTENTIALLY AFFECT WILDLIFE MOVEMENT CORRIDORS IN UNDEVELOPED PORTIONS OF THE CITY AND SOl. [THRESHOLD B-4J Impact Analysis: Wildlife corridors most likely occur in the northern undeveloped portions of the City, particularly within riparian corridors and along drainages. Wildlife movement may also occur along Lytle Creek/Cajon Creek, City Creek, and the Santa Ana River and wash, although these areas have been pre- viously modified by urban uses. No wildlife corridors are present in the developed areas of the City. In general development can affect wildlife corridors through an increase in vehicular traffic levels and nighttime light levels. These factors have been found to deter the movement of many animals, particularly in areas where urban and wildland areas interface. Development, primarily low density residential and public flood General Plan Update and Associated Specific Plans EIR City of San Bernardino . Page 5.3-37 5. Environmental Analysis control uses, in accordance with the General Plan Update could occur in the northernmost, undeveloped portions of the City and potentially impact wildlife movement in these areas. Wildlife corridors within portions of Borea Canyon and Cook Canyon would be protected by the proposed General Plan Update Open Space designation. Natural drainage courses that wildlife could potentially utilize as movement corridors would also be protected by policies of the Hillside Management Overlay. GP IMPACT 5.3-5: THE PROPOSED PROJECT WOULD REQUIRE COMPLIANCE WITH THE REQUIREMENTS OF THE CITY OF SAN BERNARDINO HILLSIDE MANAGEMENT DISTRICT OVERLAY AND TREE ORDINANCE. [THRESHOLD B-5J Impact Analysis: Future project development in accordance with the General Plan update preferred land use plan would comply with relevant policies and ordinances relating to the protection and preservation of biological resources within the City. City Ordinance MC-1027, 9-8-98 and MC-682 regulates removal of mature trees; and the City's Development Code, Hillside Management District Overlay provides protection of slope banks, ridgelines, significant rock outcroppings, native plant materials, and natural hydrology. GP IMPACT 5.3-6: THE PROPOSED PROJECT WOULD NOT CONFLICT WITH EXISTING CONSER- VATION AREAS OR ADOPTED CONSERVATION PLANS. [THRESHOLD B-6J Impact Analysis: Currently, there is not a regional MSHCP in place to provide cities within San Bernardino County a set mitigation program for offsetting potential impacts of development to the above-listed sensitive plant and wildlife species. However, some conservation areas have been established in the last ten years in response to specific projects, including the sand and gravel operations within the Lytle Creek/Cajon Creek washes. The proposed General Plan land use designation for the area between 1-215 and Cajon Boulevard in the northwesterly portion of the City would provide for development of industrial light and heavy, and extractive uses. The existing Cajon Creek Conservation Bank provides preservation land and mitigation credits for alluvial fan scrub habitat and 24 sensitive species associated with Lytle Creek/Cajon Creek. No conflict with the existing conservation area would result. Areas that would be retained as Open Space per the proposed General Plan Update land use plan would not conflict with existing designated critical habitat areas. Under current regulations, for proposed development areas that overlap with designated critical habitat, project applicants would be required to consult with the USFWS regarding potential impacts to the listed species and to comply with conservation measures and requirements to offset identified impacts. In the future, upon approval and adoption of the San Bernardino Valley wide MSHCP, and participation by the City, future projects would comply with the HCP and MSHCP. Relevant General Plan Policies and Programs Land Use Element Policy 2.6.1: Hillside development and development adjacent to natural areas shall be designed and sited to maintain the character of the City's significant open spaces and historic landmarks to preserve natural features and habitat. Policy 2.6.2: Balance the preservation of plant and wildlife habitats with the need for new development through site plan review and enforcement of the California Environmental Quality Act (CEQA). Policy 2.6.3: Capitalize on the recreational and environmental resources offered by the Santa Ana River and Cajon Wash by requiring the dedication and development of pedestrian and greenbelt linkages. Page 5.3-38 . The Planning Center July 2005 5. Environmental Analysis Natural Resources and Conservation Element Policy 12.1.1: Acquire and maintain current information regarding the status and location of sensitive biological elements (species and natural communities) within the planning area, as shown on Figure NRC-1. Policy 12.1.2: Site and develop land uses in a manner that is sensitive to the unique characteristics and that minimizes the impacts on sensitive biological resources. Policy 12.1.3: Require that all proposed land uses in the "Biological Resource Management Areas" (BRM), Figure NRC-2, be subject to review by the Environmental Review Committee (ERG). Policy 12.1.4: Require that development in the BRM: a. Submit a report prepared by a qualified professional(s) that addresses the proposed project's impact on sensitive species and habitat, especially those that are identified in State and Federal conservation programs; b. Identify mitigation measures necessary to eliminate significant adverse impacts to sensitive biological resources; c. Define a program for monitoring, evaluating the effectiveness of, and ensuring the adequacy of the specified mitigation measures; and d. Discuss restoration of significant habitats. Policy 12.2.1: Prohibit development and grading within fifty (50) feet of riparian corridors, as identified by a qualified biologist, unless no feasible alternative exists. ~ Policy 12.2.2: Generally permit the following uses within riparian corridors: a. Education and research, excluding buildings and other structures; b. Passive (non mechanized) recreation; c. Trails and scenic overlooks on public land(s); d. Fish and wildlife management activities; e. Necessary water supply projects; 1. Resource consumptive uses as provided for in the Fish and Game Code and Title 14 of the California Administrative Code; g. Flood control projects where no other methods are available to protect the public safety; and h. Bridges when supports are not in significant conflict with corridor resources; and pipelines. Policy 12.2.3: Pursue voluntary open space or conservation easements to protect sensitive species or their habitats. Policy 12.2.4: Development adjacent to riparian corridors shall: . Minimize removal of vegetation; . Minimize erosion, sedimentation, and runoff by appropriate protection or vegetation and landscape; General Plan Update and Associated Specific Plans EIR City of San Bernardino . Page 5.3-39 5. Environmental Analysis . Provide for sufficient passage of native and anadromous fish as specified by the California Department of Fish and Game; . Minimize wastewater discharges and entrapment; and . Prevent groundwater depletion or substantial interference with surface and subsurface flows; and provide for natural vegetation buffers. Policy 12.2.5: Permit modification of the boundaries of the designated riparian corridors based on field research and aerial interpretation data as part of biological surveys. Policy 12.3.1: Identify areas and formulate recommendations for the acquisition of property, including funding, to establish a permanent corridor contiguous to the National Forest via Cable Creek and/or Devil Canyon. The City shall consult with various federal, state and local agencies and City departments prior to the adoption of any open space corridor plan. Policy 12.3.2: Seek to acquire real property rights of open space corridor parcels identified as being suitable for acquisition. Policy 12.3.3: Establish the following habitat types as high-priority for acquisition as funds are available: a. Habitat of endangered species; b. Alluvial scrub vegetation; c. Riparian vegetation dominated by willow, alder, sycamore, or native oaks; and d. Native walnut woodlands. Policy 12.3.4: Preserve and enhance the natural characteristics of the Santa Ana River, City Creek, and Cajon Creek as habitat areas. Policy 12.3.5: Delineate the habitats of the Santa Ana River Sucker (Catastomus santaanae) and Pacific Speckled Dace (Rhinichthys osculus spp. 3); develop recommendations for preservation and enhancement of these habitats; and develop standards for development of adjacent lands. Policy 12.3.6: Prevent further loss of existing stands of Santa Ana River Woolly-star (Eriastrum densifolium ssp. sanctorum) and Slender-horned spineflower (Dodecahema leptoceras). Policy 12.3.7: Require that mineral extraction (sand and gravel) projects submit a survey for rare plants prepared by a qualified botanist which shall be prepared in accordance with the Department of Fish and Game's Guidelines for Assessing the Effects of Proposed Developments on Rare and Endangered Plants and Communities (CDFG, 1984). Policy 12.3.8: Require that mineral extraction projects mitigate impacts to endangered plants according to the Mitigation Policy and Guidelines Regarding Impacts to Rare, Threatened and Endangered Plants developed by the California Native Plant Society Scientific Advisory Committee (January, 1988). Policy 12.3.9: Restrict off-road vehicle recreation in sensitive habitat areas of Cajon and Lytle Creeks. Page 5.3-40 . The Planning Center July 2005 5. Environmental Analysis 5.3.3.2 Arrowhead Springs AHS IMPACT 5.3-1: DEVELOPMENT OF THE PROJECT WOULD DISTURB OR REMOVE APPROXI- MATELY 420 ACRES OF PLANT COMMUNITIES OF WHICH APPROXIMATELY 124 ACRES CONTAIN SENSITIVE VEGETATION COMMUNITIES, PLANT AND ANIMAL SPECIES. [THRESHOLD B-1 J Impact Analysis: Table 5.3-5 details project-related impacts to vegetation communities within the project boundaries. Based on the proposed grading plan, implementation of the project would result in the direct removal of 420.0 total acres of on-site vegetation communities. Table 5.3-5 Plant Communities in the Arrowhead Springs Specific Plan Area Plant Community Acreage Acreage of Impacts Annual Grassland (AG/S) 258.7 109.4 Vacated Residential Development (VRD) 39.2 39.1 Chamise Chaparral (CHA) 263.5 43.2 Chaparral (CHP) 914.3 13.6 Disturbed (DIST) 35.3 34.4 Deerweed Scrub (OS) 82.3 16.4 Landscape (LS) 133.9 108.6 Cattail Marsh (MARSH) 2.3 2.3 Lower Montane Coniferous Forest (MaN) 38.8 0 Pond (POND) 2.2 2.2 Sycamore Alder Woodland (SAW)* 40.0 0.2 Southern Willow Riparian (SWR) 20.0 19.3 Sycamore Willow Woodland (SWW) 48.4 31.5 Unclassified Non-Native 21.1 0 TOTAL 1,900.2 420.2 ~ Source: NRA 2005 *Listed in CNDDB Sensitive vegetation communities Non-sensitive vegetation communities are in the vacated residential development area and disturbed and landscaped areas. As shown in Table 5.3-4, implementation of the proposed project would impact 39.1 acres of the vacated residential development area, approximately 34.4 acres of the disturbed areas and 108.6 acres of existing landscaped areas mainly in the developed area associated with the existing Arrowhead Springs facilities, roads, and area around Lake Vonette. The proposed residential, mixed use, and golf course, would remove approximately 16.4 acres of native deerweed scrub and 109.4 acres of mixed [native and non-native] annual grassland/scrub habitats. The golf course would require an area of approximately 199 acres, however a small portion of that total acreage has been previously disturbed by the construction activities associated with the MWD Inland Feeder project. Construction of the golf course and associated residential uses along West Twin Creek/Waterman Canyon, would also result in the removal of 43.2 acres of chamise chaparral and 13.6 acres of chaparral located within the hillsides. Chamise chaparral would also be removed by construction of the new hotel and road segment north of Lake Vonette. These native plant communities are relatively common in the San Bernardino Mountains. Impacts to native and non-native vegetation along the perimeter of proposed development areas would mostly result from the installation of vineyards, intended to function as fuel modification zones. Vegetation communities associated with riparian habitat include sycamore alder woodland, southern willow riparian, and sycamore willow woodland. Riparian habitat in general can support sensitive plants and wildlife. General Plan Update and Associated Specific Plans EIR City of San Bernardino . Page 5.3-41 5. Environmental Analysis Implementation of the project primarily through the construction of the golf course and residential uses would result in the removal of 0.2 acres of sycamore alder woodland associated with East Twin Creek/Strawberry Creek; and 19.3 acres of southern willow woodland; and 31.5 acres of sycamore willow woodland, the majority of which are located in West Twin Creek/Waterman Canyon. Sycamore alder woodland is listed in the CNDDB and is considered a declining plant community. A total of 124 acres of native vegetation (deerweed scrub, chamise chaparral, chaparral, sycamore alder woodland, southern willow riparian, and sycamore willow woodland) would be directly impacted by construction of the proposed project. The improvements proposed as part of the Arrowhead Springs Specific Plan would potentially result in impacts to the following sensitive species: Plants Project implementation would result in the removal of common and sensitive plant species on the project site. Direct impacts may occur as a result of construction activities. Populations of thread-leaved brodiaea, a federal endangered, state threatened plant species, have been found in the vicinity of the Arrowhead Springs Hotel on clay soils and the Steam Cave drainage area. This species may also occur along West Twin Creek/Waterman Canyon. Rehabilitation of these steam caves associated with construction of improvements to the resort facilities would potentially result in direct impacts to this listed species. Though not observed on site, additional sensitive plants with high to moderate potential to occur in the drainages and moist areas (particularly around the Arrowhead Springs Hotel) would likely be impacted by golf course construction in West Twin Creek/Waterman Canyon and new road construction that would traverse the minor drainages. These species include smooth tarplant, a federal candidate species, and Sonoran maidenfern, a State Species of Concern. The grasslands and scrub plant communities also support habitat for three federal candidate species with moderate potential to occur onsite, including Plummer's mariposa lily, Parry's spineflower, and many-stemmed dudleya. Implementation of proposed development in these areas, particularly for construction of the golf course and associated residential uses in the hillsides and construction of residential and mixed-use development in the southern portion of the site would potentially remove these species. During the operational phases of the project, indirect impacts in the form of storm water discharges could potentially degrade or destroy habitat that would impact sensitive plant species. Wildlife The primary impacts of the project on wildlife resources are the removal and disruption of habitat and displacement of wildlife, resulting in a less diverse and abundant local faunal population. Project implementation in the short- and long-term would result in direct removal of existing wildlife habitat and mortality of common and sensitive wildlife species existing on the proposed project site. Short term impacts during construction may lead to temporary changes in foraging and land use patterns by resident and nearby species. Indirect project related impacts would include increased human activity, increased ambient noise, higher unnatural nighttime light levels, and increased mortality through road kill by traffic. Sensitive species observed during the surveys include speckled dace and northern harrier. No federal or state-listed species were observed on the site. It is unknown if the Santa Ana River sucker (Federally listed threatened) is present in any of the drainages tributary to the Santa Ana River. The speckled dace (State Species of Concern) is known from Strawberry Page 5.3-42 . The Planning Center July 2005 5. Environmental Analysis Creek and may be present in East Twin Creek and West Twin Creek/Waterman Canyon. If speckled dace and Santa Ana sucker are present in West Twin Creek/Waterman Canyon, then construction would potentially impact these species. Construction of the golf course would involve alterations to portions of West Twin Creek/Waterman Canyon where there is high and moderate potential for the red-legged frog (Federally-listed threatened, State Species of Concern) and yellow-legged frog (Federally proposed endangered, State Species of Concern) respectively, to occur. Sensitive reptile species were not observed, but suitable habitat exists on site and there is high potential for one federal candidate reptile species (northern red-diamond rattlesnake) to occur. The San Bernardino kangaroo rat (federally listed endangered) is not known from the West Twin Creek/Waterman Canyon area. The lower reaches of West Twin Creek/Waterman Canyon and East Twin Creek may provide habitat for this species however there is low potential for this species to occur. Also bighorn sheep (federally listed endangered) may occur in the upper reaches of Strawberry and East Twin Creek watershed. However potential to occur is low and this area is not proposed for development. Nineteen other sensitive wildlife species (including amphibians, reptiles, birds and mammals) have a high to moderate potential to occur onsite as previously mentioned in Table 5.3-4. These species are mostly State Species of Concern or are not listed and are therefore not protected by federal or state listing as threatened or endangered. Any loss of individuals would not threaten regional populations. The Arrowhead Springs Specific Plan project site mostly lies within the critical habitat designated by USFWS for the coastal California gnatcatcher. Suitable habitat for the gnatcatcher was not present onsite. AHS IMPACT 5.3-2: DEVELOPMENT OF THE PROJECT WOULD POTENTIALLY RESULT IN THE LOSS OF APPROXIMATELY 51 ACRES OF RIPARIAN HABITAT [THRESHOLD B-2J ~ Impact Analysis: The CNDDB tracks the occurrence of natural communities considered rare or depleted by the California Department of Fish and Game (CDFG). Four sensitive communities tracked by CDFG are recorded within the geographical vicinity of the project site. One of the sensitive communities present within the project site, southern sycamore alder riparian woodland, is present onsite and would be minimally impacted (0.2 acres) by construction that may encroach into East Twin Creek/Coldwater Canyon. No other development that would impact southern sycamore alder riparian woodland in East Twin Creek and Strawberry Creek is proposed. Two other types of riparian habitat, southern willow riparian (19.3 acres) and sycamore willow woodland (31.5), are mostly present in West Twin Creek/Waterman Canyon. Construction of the proposed golf course, proposed ponds for recycled water storage, and associated residential uses would potentially remove approximately 50.8 total acres of riparian habitat along this drainage. Indirect impacts to West Twin Creek/Waterman Canyon could potentially result from fertilizer and pesticide runoff from the golf course which could alter water quality of the creek and downstream waters, and degrade the riparian habitat along this drainage and downstream. AHS IMPACT 5.3-3: THE PROPOSED PROJECT WOULD IMPACT APPROXIMATELY 58 ACRES OF POTENTIAL JURISDICTIONAL WATERS, INCLUDING WETLANDS. [THRESHOLD B-3J Impact Analysis: The exact location of the main channel of West Twin Creek where the golf course is planned has not been determined through survey and is likely to have shifted in recent years due to severe flooding events. A formal delineation would determine precise jurisdictional limits and impacts from development of the project. However, for purposes of this assessment, as a worst case scenario, it was General Plan Update and Associated Specific Plans EIR City of San Bernardino . Page 5.3-43 5. Environmental Analysis assumed that the entire length of the existing drainage shown in Figure 3.3-6 parallel to the stream course labeled "Proposed Stream Course" would potentially be impacted. Approximately 58.1 acres of potential jurisdictional (USACE and CDFG) waters, including wetlands, would be impacted by the proposed project. Linear impacts to the various drainages would include 2,783 feet within the potential impact area. Construction of the golf course would comprise a significant portion of the impacts to jurisdictional waters and associated riparian habitat along the creek. Grading the pads for the associated residential uses could also potentially encroach into riparian vegetation considered part of CDFG jurisdiction. Figure 3.3.-4 shows a proposed commercial area adjacent to the unnamed drainage west of Highway 18. Construction of this commercial area could encroach into the drainage and/or potentially discharge fill into the potential jurisdictional drainage. In addition, there are three proposed bridges (shown on Figure 3.3-5) that would cross potential jurisdictional drainages. The westernmost bridge along the proposed new access road would cross West Twin Creek. A 90-foot bridge north of Lake Vonette would also cross a potential jurisdictional drainage. The second bridge just below the steam caves would cross a CDFG and Corps jurisdictional drainage. Depending upon the design and construction requirements ofthese bridges, there may be temporary and permanent impacts to these drainages. There may also be direct impacts to West Twin Creek/Waterman Creek from the design of a series of storage ponds/reservoirs proposed along the golf course. Depending upon final pond design, the work may require dredging or filling of potential jurisdictional areas. Three separate regulatory processes are all commonly applicable to planned local projects potentially affecting water functions and values. At the federal level, final determinations on jurisdictional waters and permit requirements are generally made by the USACE under Section 404 of the CWA. The applicable RWQCB (Santa Ana) would review projects for water quality certification or waive under Section 401 of the Clean Water Act. Finally, the CDFG executes with project proponents where a relevant Lake or Streambed Alteration Agreement under Section 1600 of the Fish and Game Code would be required. AHS IMPACT 5.3-4: THE PROPOSED PROJECT WOULD AFFECT WILDLIFE MOVEMENT IN WEST TWIN CREEK/WATERMAN CANYON. [THRESHOLD 8-4J Impact Analysis: Development of the proposed golf course would remove habitat utilized by various species. Any alteration to West Twin Creek/Waterman Canyon and adjacent areas could substantially affect the use of the drainage by foraging raptors and resident and migratory birds. Downstream near the confluence of East Twin Creek and West Twin Creek, existing open space with grassland habitat would be replaced with residential development, further reducing the available foraging habitat. Impacts to local north-south wildlife movement would result due to loss of native habitat along West Twin Creek/Waterman Canyon from construction and by increased human presence along the banks of the canyon from residential development. Impacts to wildlife movement east to west could also result in the southern portion of the site due to proposed residential development of mostly open space at the confluence of West and East Twin Creeks. Indirect impacts to wildlife movement through increased levels of light and noise associated with the residential development would also result. Maintaining East Twin Creek and Strawberry Creek drainages in their current condition (subject to natural events such as wildfires and storms), and preservation of over 70 percent of the study area as dedicated open space would partially offset the impacts to wildlife movement. However, a reduction in the wildlife use of the area would be unavoidable. The proposed development adjacent to West Twin Creek/Waterman Canyon would have a substantial effect on wildlife movement. Page 5.3-44 . The Planning Center July 2005 5. Environmental Analysis Habitat fragmentation would not be substantial for most of the project, since most of the development would take place in areas already in use. The conversion of portions of West Twin Creek/Waterman Canyon to golf course and residential development, however, would substantially divide the habitat and wildlife use of this area, in both north-south and east-west directions. Habitat fragmentation of the area between the proposed development in West Twin Creek/ Waterman Canyon and State Route 18 would result. Although the proposed development would increase in human activity and presence in the area, most of the impact would be in areas that have been occupied in the past. However, the density of the development would be greater with the proposed project than with past use, in that year round occupancy, rather than occasional use of the site, would increase. This would result in wildlife moving farther from the project area, especially with the introduction of exotic pets and plants that typically come with residential development. This impact would be somewhat partially offset by the preservation of Strawberry and East Twin Creek; however, the increase in human activities would inevitably reduce the available habitat for wildlife sensitive to the presence of humans. Migratory birds, including raptors, utilize the site for foraging and would potentially use the trees onsite to nest. The project site provides 259 acres of potential foraging habitat for birds (mixed annual grassland). Potential nesting areas include native trees associated with riparian vegetation along the drainages and non- native trees in the landscaped areas. Project construction would potentially result in impacts to migratory birds, including raptors, through removal of 109 acres of mixed annual grassland. The removal of trees through site grubbing and grading would also potentially result in impacts to nesting migratory birds, including raptors. Removal or abandonment of nesting birds (non-raptors) within the project site caused by project development would trigger the Migratory Bird Treaty Act. AHS IMPACT 5.3-5: THE PROPOSED PROJECT WOULD REQUIRE COMPLIANCE WITH THE DEVELOPMENT REGULATIONS AND STANDARDS FOR ARROWHEAD SPRINGS. [THRESHOLDS 8-5 AND 8-6J ~ Arrowhead Springs Specific Plan Development Standards Upon approval of the Arrowhead Springs Specific Plan, the following Development Standards for Arrowhead Springs (Section V), relative to biological resources, would supersede the relevant provisions of the City's Development Code: Open Space Designations Public/Commercial Recreation (PCR) The PCR designation also allows limited agricultural and open space uses, including vineyards, active and passive recreation, permanent open space, wildlife preserves, multi-purpose trails, and water retention basins. It is also intended to preserve water resources, such as watercourses, natural springs and lakes. Any proposed development in the PCR Zone shall be evaluated by the City on a case-by-case basis. Projects shall be evaluated for the impacts to the surrounding uses in terms of noise, odors, light pene- tration, aesthetics, traffic and parking. It is the discretion of the Development Services Director if a Special Conditional Use Permit is required based upon the scale of the project and potential impacts. Open Space - Watershed (OS/W) The OS/W is intended to preserve water resources, such as watercourses, natural springs and lakes and provide for recreational uses such as trails and stables. Permitted uses are limited to paseos and parks and the condition uses which are also limited shall be evaluated by the City on a case-by-case basis. Projects shall be evaluated for the impacts to the surrounding uses in terms of noise, odors, light penetration, General Plan Update and Associated Specific Plans EIR City of San Bernardino . Page 5.3-45 5. Environmental Analysis aesthetics, traffic and parking. It is the discretion of the Development Services Director if a Special Conditional Use Permit is required based upon the scale of the project and potential impacts. General Development Standards Hillside Development - Policies The purpose of these standards are to ensure that development occurs in a manner that protects the hill- side's natural and topographic character and identity, environmental sensitivities, aesthetic qualities, and the public health, safety, and general welfare. The regulations, development standards, and design guidelines for Hillside Development within the Arrow- head Springs Specific Plan are based on the following policies: . To minimize the effects of grading and ensure that the natural character of hillside areas is retained; . To protect and balance the rights of property owners with the desire of neighbors to preserve the most visually significant slope banks and ridgelines in their natural state by providing for developing hillsides at low densities; . To encourage variety in housing types, padding techniques, grading techniques, lot sizes, site design, density, arrangement, and spacing of homes and developments; . To encourage innovative architectural, landscaping, circulation, and site design; . To discourage mass grading of large pads and excessive terracing; . To provide for safe circulation of vehicular and pedestrian traffic to and within hillside areas, and to provide adequate access for emergency vehicles necessary to serve hillside areas; . To take into account unstable slopes, or slopes subject to erosion and deterioration, in order to protect human lives and property; . To encourage design and building practices to assure maximum safety from wild fire hazard; . To preserve visually significant rock outcroppings, native plant materials, and natural hydrology; . To protect and balance the rights of hillside property owners with the public benefits of reducing the visual effects of grading and minimizing the apparent bulk of structures on ridges and hillsides; and . To balance the desire of neighbors who may object to changes in a hill's natural shape with the rights of property owners desiring to place upscale homes at low densities on slopes and ridges. Hillside Development - Plant and Animal Life . Areas of a site that are identified in the environmental study as having biological significance shall be preserved, unless exempted by the Planning Commission through the Conditional Use Permit process. . Natural vegetation shall be maintained wherever possible. If removal is required, reestablishment of a compatible plant material on-site will be required at a ratio of at least 2:1. . All exposed slopes and graded areas shall be landscaped with ground cover, shrubs, and trees. . Existing mature trees shall be incorporated into the project where feasible (see Figure 5.3). Page 5.3-46 . The Planning Center July 2005 5. Environmental Analysis . Water and energy conservation techniques shall be utilized, such as special irrigation techniques (e.g., drip irrigation), drought tolerant plant species, alluvial rockscape, etc. . Wherever possible, fire resistant native vegetation shall be preserved and planted. . Introduction of landscaping within the hillside areas should make maximum use of texture, color, and be capable of blending in with the natural landscape, and help to soften the effects of buildings, walls, pavement, and grading. . Screening along roadways should make maximum use of berming and landscaping but shall not interfere with sight distance. 5.3.4 Existing Regulations and Standard Conditions Future projects shall comply with the provisions of the following regulations: . Federal Endangered Species Act . California Endangered Species Act . Clean Water Act, Sections 404, 401, and 402 . Fish and Game Code Section 1600 . Migratory Bird Treaty Act . City of San Bernardino Municipal Code Prior to the issuance of permits for any grading activity including but not limited to clearing, grubbing, mowing, discing, trenching, grading, fuel modification, and/or other related construction activity, the City or subsequent project applicant must obtain written authorization from the appropriate Federal, State, and local agencies that have jurisdiction to verify that said activity complies with the regulations enforced by those agencies. Additionally, any mitigation requirements set forth by such agencies will be incorporated into the project's final design plans. Written authorization, along with plans and mitigation measures, will be submitted to the City for review and shall have been approved prior to any grading activity. ~ 5.3.5 Level of Significance before Mitigation 5.3.5.1 San Bernardino General Plan Update Upon consideration of General Plan policies and implementation of regulatory requirements and standard conditions of approval, the following impacts would be less than significant: GP 5.3-1, GP 5.3-2, GP 5.3-3, GP 5.3-4, GP 5.3-5, and GP 5.3-6. 5.3.5.2 Arrowhead Springs Specific Plan Upon consideration of development standards and implementation of regulatory requirements and standard conditions of approval, the following impacts would be less than significant: AHS 5.3-5 The proposed project would comply with the development standards for the Arrowhead Springs Specific Plan development, including Open Space Desig- nations, Hillside Development, Animal and Plant Life policies. There is no existing approved regional HCP or MSHCP applicable to the proposed project. While portions of the project site are within designated coastal California gnatcatcher critical habitat, there is no habitat present. No conflict with existing conservation plans or area plans would occur. General Plan Update and Associated Specific Plans EIR City of San Bernardino . Page 5.3-47 5. Environmental Analysis Without mitigation, the following impacts would be potentially significant: AHS Impact 5.3-1 Project implementation, primarily construction in West Twin Creek/Waterman Canyon would result in the direct removal of sensitive vegetation communities. Impacts would be potentially significant. Direct impacts to one federal and state-listed plant species (thread leaved brodiaea) known to occur on the site; and four federal candidate plant species (smooth tarplant, Plummer's mariposa lily, Parry's spineflower, and many-stemmed dudleya) that were not observed but with a moderate likelihood to occur would result in a potentially significant impact. Direct impacts to one federal threatened and one federal proposed endangered amphibian species, and one federal candidate wildlife species AHS Impact 5.3-2 Approximately 51 acres of riparian habitat would be impacted by construction of the proposed project. AHS Impact 5.3-3 Approximately 58 acres of potential jurisdictional (USACE and CDFG) waters, including wetlands, would be impacted by the proposed project. AHS Impact 5.3-4 The proposed project may potentially affect the movement of resident or migratory wildlife species in West Twin Creek/Waterman Canyon. 5.3.6 Mitigation Measures 5.3.6.1 San Bernardino General Plan Update No significant impacts were identified and no mitigation measures would be required. 5.3.6.2 Arrowhead Springs AHS 5.3-1 Prior to the issuance of grading permits, a qualified biologist shall conduct detailed surveys for sensitive vegetation communities, plants, and wildlife that occur within the final grading footprint and associated construction staging areas for the proposed development. If listed species are determined to be present, consultation with the USFWS and CDFG shall be initiated. The applicant shall comply with project-specific permit conditions and requirements developed through consultation with USFWS and CDFG. Including: . Avoidance and minimization of impacts to listed species through revised project design. . Provision of in-kind native habitat/vegetation through onsite revegetation and restoration at a minimum 2 to 1 ratio or higher ratio as required by USFWS and CDFG. . Provision of compensation through acquisition of offsite mitigation areas at a minimum 2 to 1 ratio or higher ratio as required by USFWS and CDFG. AHS 5.3-2A Prior to the issuance of grading permits for any project potentially affecting riparian habitat, jurisdictional waters, and/or wetland habitat, the property owner/developer shall provide evidence to the that all necessary permits have been obtained from the CDFG (pursuant to Section 1600 of the Fish and Game Code) and the USACE Page 5.3-48 . The Planning Center July 2005 5. Environmental Analysis (pursuant to Section 404 of the CWA) or that no such permits are required, in a manner meeting the approval of the Director of Development Services for the City of San Bernardino. Section 404 Permits from the USCOE will also require a Section 401 Water Quality Certification from the California RWQCB Santa Ana. Project applicant shall provide evidence of a Section 401 Water Quality Certification. If federally listed species are present, consultation with USFWS shall also occur in conjunction with the Section 404 permit. AHS 5.3-2B Prior to issuance of a grading permit for any area containing resources subject to the jurisdiction of USACE and CDFG, USFWS, and RWQCB, a comprehensive Revegetation and Restoration Plan shall be developed by the applicant in consultation with the applicable agencies. The plan shall incorporate the applicable permit conditions and requirements of these agencies including the Section 404 Permit, 401 Water Quality Certification, and CDFG Section 1600 Streambed Alteration Agreement. Native vegetation shall be installed at a minimum ratio of 2 to 1 and maintained along the developed/wildland interface of the golf course and associated residential units, including local native plant landscaping. The plan will address the following items: . Responsibilities and qualifications of the personnel to implement and supervise the plan: The responsibilities of the landowner, specialists and maintenance personnel that will supervise and implement the plan will be specified. ~ . Site selection: The site for mitigation will be determined in coordination with the City, USFWS, CDFG, and USFWS. The site will be located within land to be purchased or preserved off site within the San Gabriel watershed. . Restoration and Creation of Habitat: The plan shall require the creation of riparian habitat in the amount and of the type required by CDFG and USACE, provided, however, that, in order to assure no net loss of jurisdictional resources on an acre-for-acre basis, all impacted USACE and CDFG jurisdictional habitat shall be compensated by restoration, enhancement or creation at a minimum of 3: 1 ratio. . Site preparation and planting implementation: The site preparation will include: 1) protection of existing native species, 2) trash and weed removal, 3) native species salvage and reuse (i.e. duff), 4) soil treatments (i.e. imprinting, decompacting), 5) temporary irrigation installation, 6) erosion control measures (i.e. rice or willow wattles), 7) seed mix application, and 8) container species. . Schedule: A schedule will be developed that includes planting to occur during the appropriate season. . Maintenance plan/guidelines: The maintenance plan will include: 1) weed control, 2) herbivory control, 3) trash removal, 4) irrigation system maintenance,5) maintenance training, and 6) replacement planting. General Plan Update and Associated Specific Plans EIR City of San Bernardino . Page 5.3-49 5. Environmental Analysis . Monitoring plan: The monitoring plan will include: 1) qualitative monitoring (Le., photographs and general observation), 2) quantitative monitoring (Le., randomly placed transects), 3) performance criteria as approved by the resource agencies, 4) monitoring reports for three to five years, 5) site monitoring as required by the resource agencies to ensure successful establishment of riparian habitat within the restored and created area. Successful establishment is defined per the performance criteria agreed to by the USACE, USFWS, CDFG, and the City or subsequent project applicant. . Long-term preservation: Long-term preservation of the site will also be outlined in the conceptual mitigation plan. AHS 5.3-2C The applicant shall ensure that polluted runoff from the golf course will not enter riparian habitat and jurisdictional waters, including wetland habitat, through implementation of Mitigation Measures 5.7-1 B, 5.7-1 C, 5.7-1 D, and 5.7-1 E (Section 5.7, Hydrology). AHS 5.3-3 Project applicant shall implement mitigation measure 5.3-2 to address impacts to jurisdictional waters and wetlands. AHS 5.3-4A Prior to issuance of a grading permit for the golf course construction and creek realignment, the applicant shall conduct a wildlife corridor/movement analysis of West Twin Creek/Waterman Canyon to identify and define the limits of the existing wildlife corridor. Based on the results of the analysis, and in consultation with a qualified biologist and a qualified native community restorationist, the landscaping plan for manufactured slopes along the drainage shall include: . Provision of north-south wildlife movement and linkage opportunities for the affected species along and adjacent to the realigned creek. . Planting of a minimum 25-foot buffer zone, within a 50-foot setback, of native shrubs and trees that provide maximum screening. . Exterior lighting shall be prohibited within the 50-foot setback zone. Light sources adjacent to the wildlife corridor shall be directed away from the corridor. . To allow for the mobility of animals, fencing used in the 50-foot setback zone shall be limited to open fencing, such as split rail fencing, which does not exceed 40 inches in height above the finished grade. AHS 5.3-4B If construction activities, including removal of riparian vegetation or construction adjacent to riparian habitat, is to occur between March 15 and August 30, the project proponent shall have a biologist conduct a pre-construction, migratory bird and raptor nesting site check. The biologist must be qualified to determine the status and stage of nesting effort by all locally breeding raptor species without causing intrusive disturbance. If an active nesting effort is confirmed very likely by the biologist, no construction activities shall occur within at least 300 feet of the nesting site until measures to address the constraint are agreed to by the project proponent and USFWS personnel. This agreement may be made by conference call, an on-site meeting, or other mutually agreeable means. Page 5.3-50 . The Planning Center July 2005 5. Environmental Analysis Measures available as options to address this constraint are dependent on the species and any other protections afforded it, details of the nest site, the nest stage, types and levels of ongoing disturbances, the relevant project actions, and distances involved. Specific measures would be determined by the regulating agency (USFWS). 5.3.7 Level of Significance After Mitigation Upon implementation of the above mitigation measures identified above, potential significant impacts associated with biological resources would be reduced to a level that of less than significant and no unavoidable adverse impacts would occur. General Plan Update and Associated Specific Plans EIR City of San Bernardino . Page 5.3-51 ~ 5. Environmental Analysis This page intentionally left blank. Page 5.3-52 . The Planning Center July 2005