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Home My WebLink AboutItem 7a. 2025 Engineering Standards Update, Street Trees Major List (8020) TREE COMMITTEE AGENDA REPORT SUBJECT: 2025 ENGINEERING STANDARDS UPDATE, STREET TREES MAJOR LIST (8020) FROM: Walter Gault, Urban Forestry Program Coordinator / City Arborist Phone Number: (805) 781-7578 Email: wgault@slocity.org 1.0 RECOMMENDATION Review proposed updates to the Street Trees Major List (Engineering Standard 8020) and provide recommendations to the City Arborist. 2.0 BACKGROUND Municipal Code Section 12.24.040 states that the tree committee, with the assistance of the public works and community development departments, has developed and will maintain a Street Tree Master List and a Street Tree Major Streets List which shall be adopted by Resolution of the City Council and shall be on file in the Public Works Department, Engineering Standards. These documents shall specify the species of trees suitable and desirable for planting in certain areas in order to establish a diverse urban forest. 3.0 DISCUSSION The City is updating its Engineering Standards in 2025, which include the Street Tree Master List and Street Tree Major Streets List. Staff would also like to propose the addition of a Street Tree Specific List and rename the Street Tree Master List to “Master Tree List.” Engineering standards matter because they provide a framework to help all participants in the urban forest (City Staff, residents, contractors, and developers) manage and replenish the urban forest in ways that reflect the input from staff, T ree Committee and outside experts. On February 28, 2025, the Tree Committee reviewed and accepted changes proposed by staff to the Street Trees Major List (Attachment A), derived from the DRAFT Master Tree List (Attachment B). Species deemed to be either problematic, such as Magnolia, or not in the best interests of the urban forest, like Crape Myrtle, were recommended for removal from the list. The Tree Committee also requested further review of species lists and that additional changes be presented. Meeting Date: 4/28/2025 Item Number: 7a Time Estimate: 30 minutes Page 9 of 23 Item 7a Management of the urban forest and species selection is influenced by multiple factors such as impact to public-right-of-way and hardscape, traffic visibility, leaf and fruit litter, light filtration and building architecture visibility. Previous species choices and subsequent performance observations have led to refinement of the species lists. New tree species suggestions have vertical growth habits and let in light while still providing meaningful canopy benefits. Below is a list of the additional recommended changes to the trees in Downtown District and Downtown Accent categories proposed by staff. Links are provided , which give more detailed information about the tree species discussed below. The Downtown District and Downtown Accent were prioritized on the Major Streets List because of anticipated future changes to canopy cover. Two (2) species from the Master Tree List are proposed additions to the Downtown list: Tipuana tipu and Brachychiton populneous (Bottle Tree). These species provide significant canopy, let in more light, have a reduced maintenance burden and meet expected future requirements of the urban forest like building clearance. They are both drought tolerant once established and are suitable for SLO’s climate future. Brachychiton populneous (Bottle Tree) can be viewed on the 700 Block of Higuera near the Garden Street intersection and Tipuana tipu can be viewed on the 700 Block of Lincoln Street. Downtown District (Current): Downtown District (Revised): Ficus microcarpa 10% Ficus microcarpa 10% Quercus sp. (evergreen) 50% Tipuana tipu 20% Ginkgo biloba ‘Princeton Sentry’ 30% Brachychiton populneous 20% Olea europaea ‘Swan Hill’ 10% Ginkgo biloba ‘Princeton sentry 20% Quercus sp. (evergreen) 30% Downtown Accent (Current): Downtown Accent (Revised): Jacaranda mimisfolia Jacaranda mimisifolia Corymbia ficifolia Cassia leptophylla Cassia leptophylla Tipuana Tipu Brachychiton populneous Hymenosporum flavum 4.0 ACTIONS 4.1. Provide recommendations to City staff regarding the proposed updates to the Street Trees Major Streets List (Engineering Standard 8020) and propose adjustments, if necessary. 4.2. Continue the review of the updates to the Street Trees Major List (Engineering Standard 8020), with specific direction to staff on pertinent issues, to a hearing date certain or uncertain. Page 10 of 23 Item 7a 5.0 ATTACHMENTS A - Engineering Standard 8020 updated 4-28-25 B - DRAFT Master Tree List 2025 C - Street Trees Major Streets Engineering Standard 8020 Page 11 of 23 Page 12 of 23 Revised List Revised List New Border MAY 2018 STREET TREES MAJOR STREETS 8020 KH MH 1-18 BL BL 11-06 KH BN 7-24 Note: Percentages refer to mixture of tree types in project area DOWNTOWN DISTRICT % Ficus microcarpa 10 Quercus sp. (evergreen) 30 Brachychiton populneous 20 Gingko biloba ‘Princeton Sentry’ 20 Tipuana tipu 20 DOWNTOWN ACCENT % Jacaranda mimosifolia Cassia leptophylla Hymenosporum flavum Tipuana Tipu Brachychiton populneous BROAD STREET % Monterey St. to Pacific St. Lophostemon confertus 60 Gingko biloba ‘Princeton Sentry’ 40 Pacific St. to High St. Platanus x hispanica ‘Columbia’ 40 Pistacia chinensis 40 Ginkgo biloba ‘Princeton Sentry’ 20 High St. to City Limits Platanus x hispanica ‘Columbia’ 30 Quercus sp. (evergreen) 35 Pistacia chinensis* 20 Lophostemon confertus 15 At creek crossings Platanus racemosa 100 CALIFORNIA BLVD. % Cal Poly to Mill St. Koelreutaria bipinnata 25 Quercus sp. (evergreen) 25 Cinnamomum camphora 30 Ulmus parvifolia 20 Mill St. to San Luis Dr. Ulmus parvifolia 30 TBD 40 Lophostemon confertus 30 San Luis Dr. to Johnson Ave. Quercus agrifolia 60 Ulmus parvifolia 40 At creek crossings Platanus racemosa 100 FOOTHILL BLVD. % TBD 30 Koelreutaria bipinnata 30 Platanus x hispanica ‘Columbia’ 40 At creek crossings Platanus racemosa 100 GRAND AVENUE % TBD 50 Platanus x hispanica ‘Columbia’ 50 HIGUERA STREET (east end) % California Blvd. to Santa Rosa St. Use Downtown Accent HIGUERA STREET (Downtown) % Use Downtown District Santa Rosa St. to Nipomo St. Use Downtown District HIGUERA STREET (west end) % Nipomo St. to Madonna Rd. Use Downtown Accent Madonna Rd. to City Limit TBD 30 TBD 30 Hymenosporum flavum 20 Quercus sp. (evergreen) 20 JOHNSON AVENUE % Hwy. 101 to SPRR underpass TBD 20 Pistacia chinensis 30 Quercus sp. (evergreen) 30 Hymenosporum flavum 20 UPRR underpass to Laurel Lane Quercus sp. (evergreen) 40 Pistacia chinensis 20 Ulmus parvifolia 20 Hymenosporum flavum 20 Laurel Lane to Orcutt Rd. Koelreutaria bipinnata 20 Quercus sp. (evergreen) 20 Ulmus parvifolia 20 Jacaranda mimosifolia 20 Hymenosporum flavum 20 LAUREL LANE % Platanus x hispanica ‘Columbia’ 50 Quercus sp. (evergreen) 20 Jacaranda mimosifolia 15 Gingko biloba ‘Princeton Sentry’ 15 LOS OSOS VALLEY ROAD % Lophostemon confertus 20 Quercus sp. (evergreen) 40 TBD 20 TBD 20 MADONNA ROAD % TBD 25 Pistacia chinensis 25 Quercus sp. (evergreen) 50 MARSH STREET % Use Downtown District MARGARITA AVENUE % Platanus x hispanica ‘Columbia’ 30 Hymenosporum flavum 30 Quercus sp. (evergreen) 40 MONTEREY STREET % Use Downtown District ORCUTT ROAD % Pistachia chinensis 60 Lophostemon confertus 20 Quercus sp. (evergreen) 20 At creek crossings Platanus racemosa 100 PRADO ROAD % Platanus x hispanica ‘Columbia’ 40 TBD 30 Quercus sp. (evergreen) 30 SANTA ROSA STREET % Highland St. to Murray St. Quercus sp. (evergreen) 80 Pistacia chinensis 20 Murray St. to Marsh St. Pistacia chinensis 30 Koelreutaria bipinnata 20 Ficus microcarpa 10 Lophostemon confertus 30 Jacaranda mimosifolia 10 At Creek intersections Platanus racemosa 100 SOUTH STREET % Tristaniopsis laurina 20 Jacaranda mimosifolia 20 Ginkgo biloba ‘Princeton Sentry’ 20 Platanus x hispanica ‘Columbia’ 20 Quercus sp. (evergreen) 20 TANK FARM ROAD % East of Broad St. Platanus x hispanica ‘Columbia’ 50 Lophostemon confertus 20 Eucalyptus torquata 30 West of Broad St. Platanus x hispanica ‘Columbia’ 25 Quercus sp. (evergreen) 75 Page 13 of 23 Page 14 of 23 Botanical Name Common Name Height Width Zone Afrocarpus falcatus AFRICAN FERN PINE 65 35 1--3 Searsia lancea AFRICAN SUMAC 30 35 2--3 Pinus halepensis ALEPPO PINE 60 40 3 Eucalyptus cinerea ARGYLE APPLE 50 40 2--3 Cedrus atlantica ATLAS CEDAR 65 50 3 Leptospermum laevigatum AUSTRALIAN TEA TREE 30 30 2--3 Acacia baileyana BAILEY ACACIA 30 20 1--3 Acer macrophyllum BIGLEAF MAPLE 75 50 3 Acacia melanoxylon BLACKWOOD ACACIA 50 20 2--3 Brachychiton populneus BOTTLE TREE 50 30 1--3 Acer negundo BOX ELDER 50 40 3 Cedrela fissilis BRAZILIAN CEDARWOOD 65 40 1--3 Lophostemon confertus BRISBANE BOX 50 25 1--3 Eriobotrya deflexa BRONZE LOQUAT 15 10 2--3 Syzygium australe BRUSH CHERRY 40 20 2--3 Quercus macrocarpa BUR OAK 80 30 2--3 Aesculus californica CALIFORNIA BUCKEYE 25 30 2--3 Washingtonia filifera CALIFORNIA FAN PALM 70 20 2--3 Umbellularia californica CALIFORNIA LAUREL 75 75 2--3 Platanus racemosa CALIFORNIA SYCAMORE 80 50 1--3 Cinnamomum camphora CAMPHOR TREE 65 60 2--3 Phoenix canariensis CANARY ISLAND DATE PALM 60 40 3 Pinus canariensis CANARY ISLAND PINE 80 25 2--3 Calodendrum capense CAPE CHESTNUT 40 40 2--3 Ceratonia siliqua CAROB TREE 40 40 2--3 Lyonothamnus floribundus subsp CATALINA IRONWOOD 40 20 1--3 3 - 7.5 to 10 feet from the curb (or sidewalk if present) ALLOWABLE ZONES 1 - In parkway or tree well 2 - 3 to 7.5 feet from curb (or sidewalk if present) Page 15 of 23 Melia azedarach CHINABERRY 50 25 1--3 Ulmus parvifolia CHINESE ELM 60 70 1--3 Koelreuteria bipinnata CHINESE FLAME TREE 40 30 1--3 Chionanthus retusus CHINESE FRINGE TREE 30 20 2--3 Celtis sinensis CHINESE HACKBERRY 65 45 1--3 Pistacia chinensis CHINESE PISTACHE 35 35 1--3 x Chitalpa tashkentensis CHITALPA 35 30 2--3 Quercus agrifolia COAST LIVE OAK 70 70 1--3 Erythrina crista-galli COCKSPUR CORAL TREE 30 30 2--3 Platanus x hispanica 'Columbia COLUMBIA LONDON PLANE TREE 80 40 1--3 Eucalyptus torquata CORAL GUM 35 30 1--3 Quercus suber CORK OAK 70 70 1--3 Metasequoia glyptostroboides DAWN REDWOOD 90 20 3 Cedrus deodara DEODAR CEDAR 60 30 3 Parkinsonia x'Desert Museum'DESERT MUSEUM PALO VERDE 20 25 2--3 Chilopsis linearis DESERT WILLOW 30 20 2--3 Cercis canadensis EASTERN REDBUD 20 20 2--3 Quercus engelmannii ENGELMANN OAK 65 120 1--3 Celtis australis EUROPEAN HACKBERRY 70 50 1--3 Acer paxii EVERGREEN MAPLE 35 40 1--3 Stenocarpus sinuatus FIREWHEEL TREE 30 15 2--3 Photinia x fraseri FRASER PHOTINIA 20 12 2--3 Brachychiton acerifolius FLAME BOTTLE TREE 60 40 1--3 Melaleuca linariifolia FLAXLEAF PAPERBARK 30 25 2--3 Ceiba speciosa FLOSS SILK TREE 60 50 2--3 Corymbia aparrerinja GHOST GUM 50 35 3 Cassia leptophylla GOLD MEDALLION TREE 25 30 1--3 Handroanthus chrysotrichus GOLDEN TRUMPET TREE 30 25 2--3 Koelreuteria paniculata GOLDENRAIN TREE 35 40 1--3 Brahea edulis GUADALUPE PALM 25 15 2--3 Page 16 of 23 Melaleuca ericifolia HEATH MELALEUCA 40 25 2--3 Quercus ilex HOLLY OAK 60 60 2--3 Prunus ilicifolia HOLLYLEAF CHERRY 30 25 2--3 Bauhinia x blakeana HONG KONG ORCHID TREE 40 25 2--3 Dodonaea viscosa HOP BUSH OR A'ALI'I 15 15 2--3 Quercus frainetto HUNGARIAN OAK 100 70 2--3 Calocedrus decurrens INCENSE CEDAR 90 15 3 Quercus wislizeni INTERIOR LIVE OAK 70 80 3 Quercus tomentella ISLAND OAK 50 40 1--3 Pinus pinea ITALIAN STONE PINE 80 60 3 Dalbergia sissoo INDIAN ROSEWOOD 60 40 1--3 Jacaranda mimosifolia JACARANDA 50 30 1--3 Elaeocarpus sylvestris JAPANESE BLUEBERRY TREE 60 30 1--3 Eriobotrya japonica JAPANESE LOQUAT 30 30 2--3 Archontophoenix cunninghamiana KING PALM 70 15 2--3 Ficus microcarpa LAUREL FIG 50 50 1--3 Callistemon citrinus LEMON BOTTLEBRUSH 25 25 2--3 Corymbia citriodora LEMON-SCENTED GUM 160 100 3 Ginkgo biloba MAIDENHAIR TREE 65 25 1--3 Arbutus 'Marina'MARINA MADRONE 25 25 2--3 Chamaerops humilis MEDITERRANEAN FAN PALM 15 15 2--3 Brahea armata MEXICAN BLUE PALM 50 20 2--3 Washingtonia robusta MEXICAN FAN PALM 100 10 2--3 Platanus mexicana MEXICAN SYCAMORE 50 30 3 Pinus eldarica MONDELL PINE 80 25 3 Hesperocyparis macrocarpa MONTEREY CYPRESS 65 40 3 Acacia aneura MULGA 20 20 2--3 Erythrina coralloides NAKED CORAL TREE 30 30 2--3 Metrosideros excelsa NEW ZEALAND CHRISTMAS TREE 35 35 2--3 Celtis reticulata NETLEAF HACKBERRY 35 20 2--3 Page 17 of 23 Eucalyptus nicholii NICHOL'S WILLOWLEAFED PEPPERMINT 50 40 2--3 Olea europaea OLIVE TREE 30 30 2--3 Broussonetia papyrifera PAPER MULBERRY 20 20 2--3 Melaleuca quinquenervia PAPERBARK TREE 40 25 1--3 Schinus molle PEPPER TREE 50 40 2--3 Agonis flexuosa PEPPERMINT TREE 35 30 1--3 Quercus palustris PIN OAK 60 60 2--3 Butia odorata PINDO PALM 25 12 2--3 Melaleuca nesophila PINK MELALEUCA 30 30 2--3 Melaleuca styphelioides PRICKLY MELALEUCA 40 20 2--3 Handroanthus heptaphyllus PINK TRUMPET TREE 30 25 1--3 Lagunaria patersonia PRIMROSE TREE 50 20 2--3 Phoenix roebelenii PYGMY DATE PALM 15 7 2--3 Syagrus romanzoffiana QUEEN PALM 50 30 2--3 Brachychiton discolor QUEENSLAND LACEBARK 65 20 2--3 Auranticarpa rhombifolia QUEENSLAND PITTOSPORUM 35 20 2--3 Corymbia ficifolia RED FLOWERING GUM 45 60 2--3 Eucalyptus sideroxylon RED IRONBARK 90 60 2--3 Eucalyptus erythrocorys RED-CAP GUM 30 25 2--3 Casuarina cunninghamiana RIVER SHE-OAK 70 30 2--3 Ficus rubiginosa RUSTY-LEAF FIG 50 60 3 Michelia doltsopa SWEET MICHELIA 35 20 1--3 Xylosma congesta SHINY XYLOSMA 10 15 2--3 Acacia stenophylla SHOESTRING ACACIA 30 20 1--3 Grevillea robusta SILK OAK TREE 65 35 2--3 Albizia julibrissin SILK TREE 35 35 2--3 Eucalyptus polyanthemos SILVER DOLLAR GUM 75 45 3 Quercus hypoleucoides SILVERLEAF OAK 50 30 1--3 Cotinus coggygria SMOKE TREE 15 15 2--3 Erythrina caffra SOUTH AFRICAN CORAL TREE 40 60 2--3 Harpephyllum afrum SOUTH AFRICAN WILD PLUM 50 50 1--3 Page 18 of 23 Quercus virginiana SOUTHERN LIVE OAK 80 100 3 Magnolia grandiflora SOUTHERN MAGNOLIA 80 60 3 Corymbia maculata SPOTTED GUM 100 40 3 Eucalyptus spathulata SWAMP MALLEE 40 20 1--3 Laurus nobilis SWEET BAY 40 30 2--3 Hymenosporum flavum SWEETSHADE 35 20 1--3 Angophora costata SYDNEY RED GUM 50 25 1--3 Hesperocyparis forbesii TECATE CYPRESS 25 20 2--3 Ebenopsis ebano TEXAS EBONY 40 40 2--3 Tipuana tipu TIPU TREE 50 50 1--3 Heteromeles arbutifolia TOYON 25 15 2--3 Pinus torreyana TORREY PINE 50 25 3 Dypsis decaryi TRIANGLE PALM 20 15 2--3 Quercus lobata VALLEY OAK 70 50 3 Tristaniopsis laurina WATER GUM 35 30 1--3 Acacia pendula WEEPING ACACIA 30 20 2--3 Callistemon viminalis WEEPING BOTTLEBRUSH 20 20 2--3 Cercis occidentalis WESTERN REDBUD 35 35 2--3 Eucalyptus leucoxylon WHITE IRONBARK 90 60 3 Trachycarpus fortunei WINDMILL PALM 30 10 2--3 Podocarpus macrophyllus YEW PINE 50 20 2--3 Page 19 of 23 Botanical Name Common Name Height Width Zone Afrocarpus falcatus AFRICAN FERN PINE 65 35 1--3 Acacia baileyana BAILEY ACACIA 30 20 1--3 Cedrela fissilis BRAZILIAN CEDARWOOD 65 40 1--3 Lophostemon confertus BRISBANE BOX 50 25 1--3 Brachychiton populneus BOTTLE TREE 50 30 1--3 Lyonothamnus floribundus subsp. Aspleniifolius CATALINA IRONWOOD 40 20 1--3 Melia azedarach CHINABERRY 50 25 1--3 Ulmus parvifolia CHINESE ELM 60 70 1--3 Koelreuteria bipinnata CHINESE FLAME TREE 40 30 1--3 Celtis sinensis CHINESE HACKBERRY 65 45 1--3 Pistacia chinensis 'Keith Davey' KEITH DAVEY CHINESE PISTACHE 35 35 1--3 Quercus agrifolia COAST LIVE OAK 70 70 1--3 Platanus x hispanica 'Columbia' COLUMBIA LONDON PLANE TREE 80 40 1--3 Eucalyptus torquata CORAL GUM 35 30 1--3 Quercus suber CORK OAK 50 40 1--3 Quercus engelmannii ENGELMANN OAK 50 50 1--3 Celtis australis EUROPEAN HACKBERRY 50 30 1--3 Acer paxii EVERGREEN MAPLE 35 40 1--3 Brachychiton acerifolius FLAME BOTTLE TREE 60 40 1--3 Cassia leptophylla GOLD MEDALLION TREE 25 30 1--3 Koelreuteria paniculata GOLDENRAIN TREE 35 40 1--3 Dalbergia sissoo INDIAN ROSEWOOD 60 40 1--3 Quercus tomentella ISLAND OAK 50 40 1--3 Jacaranda mimosifolia JACARANDA 50 30 1--3 Elaeocarpus sylvestris JAPANESE BLUEBERRY TREE 60 30 1--3 ALLOWABLE ZONES 1 - In parkway or tree well 2 - 3 to 7.5 feet from curb (or sidewalk if present) 3 - 7.5 to 10 feet from the curb (or sidewalk if present) Page 20 of 23 Ficus microcarpa LAUREL FIG 50 50 1--3 Ginkgo biloba MAIDENHAIR TREE 65 25 1--3 Melaleuca quinquenervia PAPERBARK OR CAJEPUT TREE 40 25 1--3 Agonis flexuosa PEPPERMINT TREE 35 30 1--3 Handroanthus heptaphyllus PINK TRUMPET TREE 30 25 1--3 Acacia stenophylla SHOESTRING ACACIA 30 20 1--3 Harpephyllum afrum SOUTH AFRICAN WILD PLUM 50 50 1--3 Eucalyptus spathulata SWAMP MALLEE 40 20 1--3 Hymenosporum flavum SWEETSHADE 50 20 1--3 Angophora costata SYDNEY RED GUM 50 25 1--3 Michelia doltsopa SWEET MICHELIA 35 20 1--3 Quercus hypoleucoides SILVERLEAF OAK 50 30 1--3 Tipuana tipu TIPU TREE 50 50 1--3 Tristaniopsis laurina WATER GUM 35 30 1--3 Page 21 of 23 Page 22 of 23 Revised List Revised List New Border MAY 2018 STREET TREES MAJOR STREETS 8020 KH MH 1‐18 BL BL 11‐06 JDL WAP 1‐98 Page 1 of 2 Note: Percentages refer to mixture of tree types in project area DOWNTOWN DISTRICT % Ficus microcarpa 10 Quercus ilex 20 Quercus rubra (Q. coccinea) 30 Gingko biloba 'Fairmont' 30 Olea europaea 'Swan Hill'-grafted fruitless 10 Downtown Accent Trees Jacaranda mimosifolia Magnolia grandiflora 'Little Gem' Corymbia ficifolia Cassia leptophylla Metrosideros excelsa Lagerstroemia hybrid* BROAD STREET % Monterey St. to Pacific St. Lophostemon confertus 60 Gingko biloba 'Fairmont' 40 Pacific St. to High St. Platanus x hispanica 40 Pistacia chinensis 40 Ginkgo biloba 'Fairmont' 20 High St. to City Limits Platanus x hispanica 30 Quercus palustris 20 Pistacia chinensis* 20 Quercus rubra (Q. coccinea) 15 Lophostemon confertus 15 *Substitute-south of Orcutt At creek crossings Platanus x hispanica 100 CALIFORNIABLVD. % Cal Poly to Mill St. Koelreutaria bipinnata 25 Quercus rubra (Q. coccinea) 25 Cinnamomum camphora 30 Ulmus parvifolia 20 Mill St. to San Luis Dr. Ulmus parvifolia 30 Metrosideros excelsus 40 Lophostemon confertus 30 San Luis Dr. to Johnson Ave. Quercus agrifolia 60 Ulmus parvifolia 40 At creek crossings Platanus x hispanica 100 FOOTHILL BLVD. % Magnolia "Majestic Beauty" 30 Koelreutaria bipinnata 30 Platanus x hispanica 40 At creek crossings Platanus x hispanica 100 GRAND AVENUE % Magnolia 'Majestic Beauty' 50 Platanus x hispanica 50 HIGUERA STREET (east end) % California Blvd. to Santa Rosa St. Use Downtown Accent Trees HIGUERA STREET (Downtown) % Santa Rosa St. to Nipomo St. Use Downtown District HIGUERA STREET (west end) % Nipomo St. to Madonna Rd. Use Downtown Accent Trees Madonna Rd. to City Limit Pinus canariensis 30 Hesperocyparis macrocarpa 30 Hymenosporum flavum 20 Quercus (Red Oak subgenus)1 20 JOHNSON AVENUE % Hwy. 101 to SPRR underpass Magnolia 'Majestic Beauty' 20 Pistacia chinensis 30 Quercus palustris 30 Hymenosporum flavum 20 UPRR underpass to Laurel Lane Quercus agrifolia 20 Pistacia chinensis 20 Ulmus parvifolia 20 Hymenosporum flavum 20 Quercus rubra (Q. coccinea) 20 Laurel Lane to Orcutt Rd. Koelreutaria bipinnata 20 Quercus rubra (Q. coccinea) 20 Ulmus parvifolia 20 Jacaranda mimosifolia 20 Hymenosporum flavum 20 LAUREL LANE % Platanus x hispanica 50 Quercus suber 20 Jacaranda mimosifolia 15 Gingko biloba 15 LOS OSOS VALLEYROAD % Lophostemon confertus 20 Quercus tomentella 20 Fagus sylvatica 20 Quercus agrifolia 20 Pinus caneriensis 20 MADONNA ROAD % Pinus canariensis 25 Pistacia chinensis 25 Quercus agrifolia 25 Quercus rubra (Q. coccinea) 25 MARSH STREET % Use Downtown District MARGARITA AVENUE % Platanus x hispanica 30 Hymenosporum flavum 30 Quercus palustris 40 MONTEREY STREET % Use Downtown District ORCUTTROAD % Pistachia chinensis 60 Lophostemon confertus 20 Quercus agrifolia 20 At creek crossings Platanus x hispanica 100 PRADO ROAD % Platanus x hispanica 40 Pinus canariensis 30 Quercus palustris 30 SANTA ROSA STREET % Highland St. to Murray St. Quercus agrifolia 80 Pistacia chinensis 20 Murray St. to Marsh St. Pistacia chinensis 30 Koelreutaria bipinnata 20 Ficus microcarpa 10 Lophostemon confertus 30 Jacaranda mimosifolia 10 At Creek intersections Platanus x hispanica 100 SOUTH STREET % Tristaniopsis laurina 20 Jacaranda mimosifolia 20 Ginkgo biloba 'Fairmont' 20 Platanus x hispanica 20 Quercus palustris 20 TANKFARM ROAD % East of Broad St. Platanus x hispanica 50 Lophostemon confertus 20 Eucalyptus torquata 30 West of Broad St. Platanus x hispanica 25 Cinnamomum camphora 25 Quercus agrifolia 25 Quercus rubra (Q. coccinea) 25 Page 23 of 23