Groundwater resources and the composition, extent & migration of contamination plumes are evaluated through: Aquifer testing & laboratory data analysis. Analytical & computer modeling. Determination of natural aquifer attenuation properties for contaminants.
DHES professionals have more than 20 years of practical field experience in well installation, aquifer testing, computer modeling and data analysis throughout the United States and abroad. Below is a selected summary of relevant experience.
- Evaluated the fate and transport of groundwater contaminated with petroleum and chlorinated hydrocarbons at numerous sites using a variety of groundwater modeling techniques including the USGS MODFLOW algorithm to design groundwater remediation systems.
- Evaluated potential leakage through the dam and walls of a drinking water storage reservoir in California using groundwater flownet analysis and chemical quality indicators. In addition, designed a dewatering system to alleviate excessive pressure along the reservoir walls so that a permanent reservoir liner could be installed.
- Performed aquifer testing to evaluate a potential well field for industrial groundwater supply in Chihuahua, Mexico to provide cooling water for a gas-fired power plant.
- Designed and supervised installation of deep (500 to 1000 feet) industrial water supply wells in the United States and Mexico to provide clear silt-free good-quality water for industrial processing.
- Designed and performed well injection tests near Broken Hill, South Australia to evaluate the hydraulic properties of the deep aquifers of the 'Outback.'