Services include design of dewatering systems ranging from simple pumps to deep extraction and recharge well systems. We evaluate alternatives to minimize dewatering costs, protect adjacent property and resources, and minimize the quantity of contaminated ground water to be treated or removed from the site. A number of projects have included excavation and backfill under water to minimize dewatering costs. Our dewatering designs have been integrated with excavation support or barrier wall systems to minimize the quantities of contaminated water that is pumped and treated. Our evaluations include base stability of the excavation as well as impacts of dewatering on adjacent buildings and utilities.