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Additional Services Authorization#I RE: NEVADA STREET IMPROVEMENTS/additional scope and design changes iseo May 13,2022 Page 2 of 3 documents in the hope of reducing the likelihood of major layout changes during the CD phase. During the Bernal intersection onsite meeting on 10/06/2021, in which we walked the site with the base linework in hand, comments were only provided for the central plaza area at Wyoming Street, the proposed parallel parking stall at the fire station parking lot, and street striping. These comments were integrated into the base for the 35%submittal and we did not anticipate any major base changes. See attachment of meeting summary. The 35%submittal comments significantly impacted the layout of the shed area, shade structure area, central plaza area (including curb alignments) and fire station picnic area. b. Addition of landscape area at the fire station that was outside the Limit of Work Exhibit in the agreement and not included in the original scope. Updates include demolition, irrigation, and planting plan and estimate. i. As described in the fee allocation memo sent on 12/07/21, the allocation of the $3,296 optional services fees was for the Bernal intersection site walk and coordination effort with the design team and City and related to the Bernal intersection only. See attached memo. c. Additional subconsultant coordination related to items a above and items D below. d. See attached civil proposal for 5.1.1.D.1 and 5.1.1.D.2 items. PS&E Updates: Per the 65% comments and comment review meeting, provide the following items in the PS&E. .Stormwater treatment alternative concept evaluation and development of an exhibit (submitted on 3/29/22), as directed by the City. Purpose of the exhibit was to confirm feasibility of stormwater treatment behind the back of trail instead of utilizing the silva cell design that was scoped. Work included coordination with civil engineer to confirm feasibility of locations of stormwater treatment areas in exhibit. b. Additional plaza changes based on Zone 7 comments. FM' piGk up Gest. research and develop estimated costs for recycled water pick up. e. Addition of gravel improvements behind driveway and in front of Arroyo Valle access gate al Bernal Ave. This location was not included in the Limit of Work Exhibit per the agreement. 21010A_ASA#l.doc © copyrighted 2022 Callander Associates Landscape Architecture,Inc.