25E - AGMT WATER ENGINEERING CONSULTING

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JONIS C. SMITH, PE, CFM — CONTINUED over -excavation and re -compaction of 80,000 cubic yards of onsite material was required to stabilize subsurface soils from existing ground level to the underlying bedrock. To construct the above grade berms, the project will import approximately 50,000 cubic yards, Dudek is coordinating with the District to identify, select; and pre -negotiate an offsite borrow pit for the imported material. Other improvements include recycled water pump stations at the WRF site and Charlan Road, coordinated to allow parallel operation in a common 5,000 -ft long forcemain to the neighboring Woods Valley Golf Course. Harveston Lake, Lennar Homes, Temecula, California. Project Manager and Project Engineer for proposed 10 acre (150 ac -ft) lake for the then proposed residential community known as Harveston. Mr. Smith designed the lake liner, filtration, circulation, and aeration systems. He prepared the lake grading plan set with all the lake operational features and published a lake Operations Manual to give the lake owner guidance on lake maintenance and operations procedures. Heritage Park Lake, City of Cerritos, Cerritos, California. Project Manager and Project Engineer for proposed 4 acre (24 ac -ft) lake for the then proposed renovation of the community park. Mr. Smith designed the lake liner, filtration, circulation, and aeration systems. He prepared the lake grading plan set with all the lake operational features and published a lake operations manual for the lake owner. North Trumble Recycled Water Storage Pond, Eastern Municipal Water District, Perris, California. Mr. Smith served as the lead project engineer for the pond design portion for this project. The project consisted of design for two new recycled water ponds that will provide the District with 1,500 acre-feet (489 million gallons) of additional seasonal storage capacity to allow the District to use more recycled water within its service area during the high -demand summer months. Features of the new ponds include three 2,000 gpm floating pump stations with 150 hp vertical turbine pumps, approximately 2,500 If of 16 - inch to 36 -inch inlet and discharge piping, and 36 -inch diameter steel pipelines and isolation valves to interconnect the new ponds to each other and to the existing adjacent Trumble Road Recycled Water Pond. Access roads to the bottom of the ponds with landing platforms for cranes will also be provided. The project also includes improvements to two existing recycled water ponds, the 117 MG Case Road Pond and the 50 MG Watson Road Pond. These improvements include new 2,000 gpm floating pump stations and associated inlet and discharge piping, electrical and SCADA system upgrades, and deepening of Case Road Pond to optimize the storage capacity at that site. WRP7 Percolation Ponds, Coachella Valley Water District, Coachella, California. Project Engineer for design of the 58 -MG percolation pond. The project goal was to maximize the disposal capacity of onsite percolation ponds, thereby minimizing the District's reliance on offsite percolation ponds which are subject to restrictions during wet weather events. A comprehensive geotechnical investigation was prepared to analyze hydraulic conductivity of the surface soils, general geology, and local hydrogeology. This analysis identified soil clogging and subterranean groundwater barriers as restrictions to the onsite percolation rate, with varying expected percolation rate across the plant site. This evaluation was developed into a percolation pond improvement strategy that includes reconfiguring the ponds to maximize percolation capacity and onsite storage volume. Fletcher Percolation Basin, Orange County Water District, Orange, California. Project• Manager and Project Engineer for the proposed redevelopment and repurposing of a150 ac -ft percolation basin for OCWD. Mr. Smith prepared a preliminary design study to determine the basin storage and percolation capacity. The basin was preliminarily designed to operate as a dual use facility providing both stormwater detention and groundwater recharge. The basin will also provide additional storage capacity in the OCWD Riverview Basin system adjacent to the Santa Ana River. The basin was preliminarily designed to function as a deep recharge basin with a maximum depth of 35 -ft. The basin bottom and sided below the permanent storage pool were designed with large particle size soil slopes to allow for maximum recharge. D D • g 25E-47