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EXHIBIT A Appendix ATTACHMENT 1 SCOPE OF WORK CITY OF SANTA ANA REQUEST FOR PROPOSALS FOR ON -CALL STORMWATER PROJECT DESIGN SERVICES RFP NO.20-102 INTRODUCTION/BACKGROUND The City of Santa Ana is 27.2 square miles and is located in central Orange County, California. Santa Ana is the most densely populated city in the county, with a total population of 338,247 and approximately 12,435 people per square mile. Santa Ana sits within three major watersheds: the Newport Bay watershed, the Santa Ana River watershed, and the Anaheim Bay/Huntington Harbour watershed. The City of Santa Ana is a co-permittee under the North Orange County Municipal Separate Storm Sewer System (MS4) Permit (Order No. R8-2009-0030, as amended by Order No. R8-2010- 0062). The Permit presents a series of technical, legal, and regulatory challenges to the City and as a result, the City has established a rigorous stormwater compliance program. The Permit requires the City to reduce the discharge of pollutants in urban stormwater runoff to Waters of the US to the "Maximum Extent Practicable". One of the most effective mechanisms in reducing pollutants and improving surface water quality is via the construction of structural Best Management Practices (BMPs). Stormwater infiltration, biotreatment, harvest and reuse, and diversion to the sanitary sewer are proven methods to achieve water quality goals and the City seeks to continue its proactive approach in implementing such projects. Additionally, structural BMPs can provide ancillary benefits such as increasing local water supplies, reducing flooding, and providing public education and recreational opportunities for Santa Ana residents. The City desires to retain Civil Engineering Consultants on an as -needed or "on -call" basis to design complex, regional stormwater capture and treatment projects and perform other stormwater-related tasks as outlined in the Scope of Services below. Professional Services Agreements will be entered into with the selected Civil Engineering Consultants and the selected Consultants will be asked to provide professional engineering services proposals on a project -by - project basis, based on an agreed -upon scope of services and fees. After review of the proposals and associated costs, the City will issue a Notice to Proceed (NTP) for the selected Consultant to begin work on the project/task. Funding sources for each project may vary. The City intends to seek local, State, and Federal grant moneys to fund regional stormwater projects and the selected firm shall comply with the funding agency's requirements. Additionally, all work shall be done in accordance with the most City of Santa Ana RFP 20-102 Page Al-1