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Ken Mercer Sports Park Skatepark Construction Documents Scope of Services rrm April 20, 2022 design Page 3 of 9 group RRM will submit a draft version of the drainage and stormwater control plan and the City of Pleasanton Stormwater Requirements Checklist with the 60% PS&E and the final version will be submitted with the 100% PS&E Pump Plan Due to the grades of the project site and proposed skate park, a pump is needed in the skate park area to pump stormwater to the drainage system and stormwater treatment measures. RRM will calculate the design flow of the pump based on the ten year storm. The pump will be an off-the-shelf manufactured product that can convey the contributing ten year storm —no custom mechanical pump design is included in this scope. The pump plans will call out the specific pump model number and manufacturer with an "or approved equal" qualifier. RRM's electrical engineering subconsultant, Zeiger Engineering, will provide electrical engineering design to provide a power source to the pump. The pump will be housed in a below-grade box specified by the pump's manufacturer, City- standard utility box, County-standard utility box, or Caltrans-standard utility box— no custom structural pump enclosure is included in this scope. Stormwater Pollution Prevention Plan SWPPP A project SWPPP is required for this project (more than one acre of disturbed land). RRM will prepare plans for temporary erosion control facilities. Temporary facilities will be proposed for the protection of graded areas and drainage devices. Details and appropriate notes for construction best management practices (BMP) and guidelines for implementation are proposed to be in conformance with the State of California Water Resources Board requirements and the approved staff report, including sediment control recommendations. The temporary erosion control plans will be incorporated into the project improvement plans as well as into the project SWPPP. RRM will conduct a risk determination based on the project's topography, soil, schedule, location, and receiving water then prepare the SWPPP based on the project-specific risk level. The SWPPP will be based on the 100% PS&E submittal. This task includes preparing permit registration documents using the SMARTS database for certification by the Client and submittal to the Water Boards. The City will initiate the project in SMARTS. This task does not include construction monitoring, QSP services, or SWPPP updates during construction. Construction Plan Construction plans for the overall skatepark design and surrounding amenities layout with a keynoting system that identifies all construction items, references to appropriate details, and drawing series directions. This plan will include and annotate all skate and site features, walls, hardscape, paving materials, ramps, stairs, fences, handrails, and lighting. Design assumes Fire Department will utilize the proposed and existing parking lots as the access roads.