Item 15 - Approve Agreements for Agreements for On-Call Engineering Services

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Proposal For On -Call Water Resources Engineering Services Our capabilities within the Scope of Services for which our team is qualified to perform include the following: Planning Resources and Design 0 Civil Engineering Kimley-Horn can meet all your civil engineering and roadway design needs. Since 1967, Kimley-Horn engineers have designed more than 4,000 miles of roadway, including highways, highway interchanges, urban arterials, and neighborhood streets. These projects —performed for state departments of transportation, cities, and counties —have included route/corridor studies, schematic design, maintenance of traffic plans, construction sequencing, and final plans, specifications, and estimates (PS&E). Our in-house staff is equipped to address all aspects of roadway design projects, including pavement rehabilitation, roadway realignment and widening, intersection geometrics, utility relocations, drainage, stormwater pollution prevention plans, and erosion control. Also, Kimley-Horn's team has provided municipal agencies with design services for their public facilities such as parks, parking lots, parking structures, libraries, senior and community centers. We have gained extensive experience in dealing with local regulatory and other agencies to secure the permits and approvals necessary for the building and upgrading of municipal facilities. 8Design Services Water Improvement Design and Coordination. Our water resources engineering team has successfully completed water infrastructure projects for various agencies in Southern California. These projects consist of water main replacement, realignment, upsizing and capacity increase, master planning, siphon design, existing system evaluation and maintenance and operational support. Drinking Water. Kimley-Horn has provided advanced water treatment systems for safe drinking water supply. Services include reverse osmosis, membrane softening systems, wellfield development, permitting of membrane concentrate waste disposal, master pumping stations, metering stations, and water storage facilities. Reclaimed Water. Effluent disposal and reuse is perhaps the niggest challenge facing municipalities today. Kimley-Horn has helped local water agencies navigate the planning, design, and construction of an entire reclamation system. With increasingly stringent regulations on effluent quality and the increased pressure on our water supply, effluent disposal and reuse is an issue that has become central to our efforts in serving wastewater utilities. Our team is well acquainted with the issues of effluent disposal and reuse and the necessary reclaimed water systems to provide these functions. Well Rehabilitation Design. A combination of three factors can cause water production decline. The first factor is regional decline in water elevations that shift the "static" water level down. The second factor is water level decline in a local aquifer caused by continuous pumping. The third factor is a decline in specific capacity caused by a plugged filter pack or well screen. The regional decline in water levels is not controllable and groundwater levels will recover through natural recharge. The reduction in specific capacity requires corrective action in the form of root cause evaluation, well redevelopment, and possibly modification to pump location and flow rate. The decline in specific capacity could be a result of a reduction of permeability near the well screen. This type of permeability reduction is often the result of biological fouling, cementation, or the intrusion of fine- grained aquifer sand into the gravel pack surrounding the well casing. Well videos could confirm this. Migration of fine-grained aquifer sand is a possible root cause of the rapid decline in specific City of Santa Ana ' IWOC77003.22 Kimley> Horn 7