Mr. Zilles has over 19 years of experience as a geologist and manages/conducts hydrogeologic assessments throughout the United States with direct experience in groundwater well design, supply analyses, asset management, and groundwater recharge and extraction. He manages pre-construction permitting (local and State), aquifer analysis, conducts construction dewatering analyses, well pumping tests, and water quality investigations. Mr. Zilles is a California State licensed Professional Geologist, licensed California Well Driller (C57), and member of the AWWA, NGWA, California Groundwater Resource Association, American Society of Civil Engineers, and Engineers Without Borders organization. Mr. Zilles has been with Kleinfelder for the past 18 years.
PLATFORM PRESENTER - Getting It Straight: Defensible Data
Well Siting Evaluations - An Engineering Approach
Well siting evaluations or studies can be a tricky endeavor. Seems either everyone or no one has an opinion on how to select a well site and a variety of tools and methods are employed that either are not applicable to the geologic setting or based on mythical practices. When selecting a well site, local experience is indeed important to understanding the groundwater supply regime, however no site is exactly the same even within the same basin. Specific and reasonable methods can be employed on a variety of sites which can yield information founded in fact that can be used to make well informed business decisions on how and where to drill a new well. In this presentation we will discuss the methods which can be employed to evaluate sites for groundwater development which include geology, hydrogeology, engineering, water quality, data collection/interpretation, and site decision making and scoring/criteria matrices. We will also discuss the pros and cons to different site selection criteria such as accessibility, infrastructure, and economics. Case studies will be presented to demonstrate the methods developed to evaluate several sites and the applicability of basic analyses to specific geologic settings.