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ATTACHMENT <br />EXHIBIT "A" <br />SCOPE OF SERVICES <br />Task 1— Research and Summary of Findings <br />a) Research and develop a timeline summary -of urbanization and hardscape <br />improvements that direct surface runoff onto the golf course. <br />Watearth will assess available information for the Redlands Country Club and Golf Course <br />(RCC). Watearth will supplement this information with aerial imagery depicting urbanization <br />over the history of the RCC. Will review the United States Geological Survey (USGS) maps <br />showing development history of the surrounding and hydrologically contributing area. <br />Watearth team has reviewed the Scope of Services document and will evaluate readily and <br />publicly available information that the City stores in their library room and other relevant <br />institutions. Additional desktop evaluation will be included for the following resources: <br />a. NRCS Soils Data <br />b. Topographic Data <br />c. Geotechnical Data <br />d. Flood Insurance Rate Map (FIRM) <br />e. Watershed boundaries and/or LIDAR <br />f. City of Redlands's as-builts of storm drainage, developments plans, and existing <br />H&H models <br />g. Other relevant studies, reports, and databases <br />The team has reviewed the Location Map with Discharge Locations and suggests performing <br />a site reconnaissance to identify additional site discharges into the Redlands Country Club <br />(RCC). Preliminary review of the site maps indicates that there are three main drainage areas <br />contributing to the golf course, measuring 36 acres, 43 acres, and 59 acres, with <br />approximately 14.2 acres located within the golf course. This subdivision is relevant for <br />modeling and to determine flood control responsibilities, and mitigation options locations. <br />Watearth will attend one virtual meeting with representatives of the City to gather historical <br />lalowledge of stormwater management practices associated with developments identified in <br />the data review. Information will be compiled and will be used to approximate the drainage <br />areas that will be part of the modeling process. <br />b) Develop separate pre -development and post -development drainage maps at various <br />urbanization milestone dates showing basins and sub -basins that direct surface runoff <br />onto the golf course. Each map should quantify the Q and tc for the minor and major <br />storm events, indicate discharge points, and highlight projects that redirected historic <br />flows. <br />Watearth will perform site reconnaissance focusing on contributing drainage areas to locate <br />any additional discharge points into the golf course and will complement it with an aerial <br />review to determine if any stormwater management feature such as detention ponds, <br />3 <br />I:\cmo\Agreements\First_ Amendment_ to_Watearth Agreement FY22-0183.docx - AE <br />