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Arsenic Wellhead Treatment Alternatives Analysis <br />and Preliminary Design I Coachella Valley Water <br />District I Palm Desert, California I Project Engineer <br />Tyler led a two-step process of an alternatives <br />analysis and subsequent preliminary design of a <br />wellhead treatment system for a 1000-GPM well. This <br />Involved evaluating an existing ion exchange arsenic <br />removal system and potential options to abandon, <br />rehabilitate, or replace the treatment system. Tyler <br />performed a thorough evaluation of water supply <br />alternatives and process alternatives, including ion <br />exchange and adsorption treatment. <br />Arsenic Ion Exchange and Manganese <br />Treatment System Evaluation Study I US Navy <br />Bridgeport, California I Project Engineer <br />Tyler evaluated an arsenic and a manganese drinking <br />water treatment system in decentralized, remote <br />locations treating contaminated groundwater. The <br />project consisted of site investigations, data collection <br />and analysis, treatment process evaluation, economic <br />analysis, and recommendation of treatment system <br />alternatives. As project engineer for the arsenic <br />treatment evaluation, he developed preliminary <br />design criteria for ion exchange and adsorption <br />treatment systems. Tyler exercised sensitivity to <br />existing conditions and client values, and applied a <br />comprehensive technical knowledge of removal <br />processes, as well as interdisciplinary design <br />requirements to propose optimal solutions for <br />the client. <br />Remediation Alternatives Study and Work Plan <br />Confidential Client I California I Process Engineer <br />A large Superfund site in Southern California has <br />multiple contaminated areas with several parties <br />involved, Tyler analyzed the site water quality <br />database and built queries and data analysis <br />templates to estimate contaminant concentrations at <br />different locations. He also worked on conceptual - <br />level treatment system design calculations and cost <br />estimates for extracted groundwater containing <br />various toxic organics and heavy metals. The <br />treatment system consisted of air stripping, ion <br />exchange, UV/advanced oxidation process, and liquid <br />and vapor phase carbon adsorption, This work helped <br />define and evaluate alternatives for the client to <br />address the groundwater contamination. <br />Sustainable Water Infrastructure Project (SWIP) <br />City of Santa Monica I Santa Monica, California <br />Lead Process Engineer <br />The City's SWIP is an integrated water resources <br />initiative to improve water sustainability and drought <br />resilience. It involved the addition of reverse osmosis <br />to the existing Santa Monica Urban Runoff Recycling <br />Facility to treat urban runoff and brackish/saline <br />groundwater including PFAS contamination, <br />construction of a new below -grade advanced water <br />treatment facility for treating wastewater and <br />stormwater through MBR—RO—UV/AOP, and a new <br />below -grade stormwater harvesting tank. Tyler was <br />the lead engineer for the conceptual design of all <br />facilities. He worked closely with the state and <br />regional regulatory agencies for permitting of future <br />facilities. Tyler and the team are supporting the City of <br />Santa Monica through a progressive design build <br />delivery process, providing technical design review <br />and advise as the City's Owner's Engineer. <br />Pure Water San Diego Program I Public Utilities <br />Department I San Diego, California I Lead Process - <br />Mechanical Engineer/Lead Project Engineer <br />Tyler was a process engineer for the 10 and 30 <br />percent designs for the North City Pure Water Facility <br />that is part of the San Diego Pure Water program. <br />The project will supply water for potable reuse to an <br />existing surface water reservoir. He is working with <br />the team on all treatment processes and facility <br />layouts and is the lead process -mechanical engineer <br />for the mlcrofiltration/ultrafiltration (MF/UF), BAC, and <br />ozone systems for the pre -design of a 40-MGD <br />facility. He is intimately familiar with process <br />performance considerations and the detailed design <br />issues surrounding these systems. He is performing <br />the process and design calculations, designing the <br />layout of the facilities and piping, developing control <br />strategies, and coordinating work of other disciplines. <br />He is the lead project engineer for development of the <br />pre -selection documents for the MF/UF system. <br />1,2,3-TCP Planning Study I Chino Desalter Authority <br />Ontario, California I Process QA/QC Reviewer <br />Tyler was a quality control technical reviewer for <br />this study that evaluated options for treating for <br />1,2,3-TCP from various contaminated wells. The <br />team developed process models for adsorption <br />and air stripping, along with system -level flow and <br />mass balance calculations and cost estimates. <br />Tyler reviewed the process calculations and <br />complete report. <br />Advanced Water Treatment Plant —Full Scale Boron IX <br />Feasibility Study I Metropolitan Water District <br />Southern California I Lead Process Engineer <br />Tyler was involved in supplemental studies for boron <br />removal using ion exchange. He is the lead process <br />engineer developing the treatment system design and <br />cost estimate to remove Boron from the advanced <br />treated water, <br />City of Santa Ana I On -Call Engineering Design Services for PFAS Treatment Systems RFP NO.22-133 A-1 D <br />