Larry Walker Associates
Andrew Calderwood is a Project Engineer at Larry Walker Associates since November 2020, specializing in developing groundwater flow models and managing groundwater data for the General Sustainable Planning (GSP) process. Prior experience includes a PhD candidacy at UC Davis, where Andrew developed a MODFLOW model to simulate groundwater-surface water interactions and created field instrumentation for studying streambed seepage. Previous roles encompass student assistant positions at Graham Fogg Lab and Harter Lab at UC Davis, where responsibilities included data management and research on well codes. Andrew also gained experience as a Student Contractor with the US Army Corps of Engineers, focusing on digitizing river depth data. Educational qualifications include a Master's degree in Hydrology and Water Resources Science and a Bachelor's degree in Civil Engineering, both from UC Davis.
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Larry Walker Associates
Larry Walker Associates (LWA) is a privately owned firm headquartered in Davis, California with offices throughout the state in Berkeley, San Jose, Santa Monica, Ventura and La Jolla. Since 1979, LWA has integrated environmental stewardship, sound science, effective public policy and collaborative problem solving, delivering practical and constructive solutions for today’s environmental challenges. We work with public agencies and private businesses throughout the West, partnering to best use all of our resources to protect and improve the environment. LWA provides a variety of specialized services related to wastewater, stormwater, surface water and groundwater management. LWA’s expertise includes assistance with NPDES permit compliance, analysis of State and Federal water quality policies, implementation of watershed studies, and monitoring of surface waters, groundwaters and waste streams. The services offered by LWA include: - Wastewater - Stormwater - Watershed management and TMDLs - Agricultural water quality management - Groundwater modeling and management