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The assessment analyzed the health risk from emissions from the demolition of the existing structures and the construction of the new structures factoring in the increase in the number of fuel pumps and expansion of the convenience store. The assessment concluded that the health risk from the TAC emissions from the construction and operation of the proposed project would not exceed the thresholds of significance for community risk impacts as established by BAAQMD and no mitigation is required. Tree Removal, Landscaping and Retaining Wall Since the preparation of the arborist report in May, the site plan has been modified. The revisions would result in removal of Tree #57, a 16-inch diameter London plane tree due to the repositioning of the existing driveway on W. Las Positas Boulevard 10 feet easterly. Following the study session, it was determined that the initially proposed location of the bio-retention area near Hopyard Road would likely cause the need to remove Tree #66, a 21-inch diameter Monterey pine tree located on the adjoining site to the south. The bioretention area has since been redesigned/relocated, allowing for this tree to be retained. The landscape plan includes a variety of trees (Arbutus standard, Crape Myrtle, and Drake Elm), shrubs (Dwarf Weeping Bottlebrush, Fortnight Lily, Grevillea, Stella de Oro Daylily, Wax Leaf Privet, Deer Grass, and New Zealand Flax), vines/espalier (Dwarf Southern Magnolia and Japanese Creeper), and groundcover (Malate Fescue and Flower Carpet Yellow Rose). The proposed planting theme would add accent colors to the site and provide screening between the project site and the adjoining properties. The City Landscape Architect has reviewed proposed landscape plan and found it is generally acceptable with the following change: replace the proposed privets between the sidewalk on Hopyard Road and the convenience store building with Pittosporum tenuifolium `Marjorie Channon' or Photinia x fraseri as privet is not an appropriate evergreen shrub for the area. Conditions have been added to address these items. The Commission also discussed whether a physical barrier should separate the project site from adjoining property to the south. The Commission indicated they prefer an attractive open fence approximately 4 feet in height. In discussion with the applicant regarding the proposed 3-foot tall retaining wall near the south and west property lines, the applicant indicated this retaining wall could be avoided/removed. Staff reiterated Planning Commission's discussion on an attractive open fence and recommends a wrought iron fence of five feet to be installed. The recommended wrought iron fence would provide a degree of visibility and discourage illicit activity. The recommended Condition No.11 addressed this item. Concerns Raised by the Adjoining Church Property Owner to the South In addition to the crime and air quality concerns discussed above, representatives from the church raised the following concerns to staff and the Planning Commission at the work session: convenience store patrons loitering and leaving trash in the church parking lot, convenience store delivery trucks and customers using the church's property for unloading and parking, and convenience store patrons speeding through the church parking lot from the convenience store. PUD-134/P18-0332/P18-0334 Planning Commission Page 22 of 24 considered a sensitive receptor, but due to concerns raised by the church, the report conservatively analyzes impacts to workers and visitors to the church. PUD-134/P18-0332/P18-0334 Planning Commission Page 21 of 24 dent. PUD-134/P18-0332/P18-0334 Planning Commission Page 16 of 24