Areas of Expertise
Vadose zone/aquifer characterization
Saturated/unsaturated flow modeling
Recharge system design parameters
Stormwater capture and recharge system studies
Surface water – groundwater interaction studies
Design and installation of groundwater monitoring and production wells
Pilot project design and monitoring
GROUNDWATER RESOURCES
GSA has extensive experience related to groundwater resources and managed aquifer recharge having conducted over 30 groundwater recharge projects in the western United States, with a total recharge capacity exceeding 500,000 acre-feet per annum. GSA also specializes in the design and installation of innovative vadose zone and groundwater characterization systems that have been used to monitor irrigation efficiency and groundwater and soil salinity. In addition, we have published numerous manuscripts on groundwater recharge processes and instructed short courses on siting groundwater recharge projects. GSA also provides technical services to evaluate groundwater resources, surface water-groundwater interactions, and the effect of urbanization on natural groundwater recharge rates.
- + Project Examples
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- Alluvial Aquifer Filtration as a Pre‐treatment Option for ASR. Keller, .R. Rice , W. Burt and J. Melady. 10th International Symposium on Managed Aquifer Recharge, Madrid, Spain, May 20-24, 2019
- Stormwater Capture and Recharge of Urban Enhanced Runoff, Cochise County, Arizona, Cochise County and The Nature Conservancy
- Aquifer Recharge and Water Resource Assessment, Walla Walla Basin, Walla Walla Basin Watershed Council, Oregon and Washington
- Mosier Aquifer Recovery Feasibility, Mosier Oregon, GSI Water Solutions (Prime), Wasco County Soil and Water Conservation District (Ultimate Client)
- KWAPA Groundwater Utilization Study, Klamath Falls, Oregon, GSI Water Solutions (Prime), Wasco County Soil and Water Conservation District (Ultimate Client)
- Groundwater Collection Via Subsurface Drains, Entiat, Washington, Inter-Fluve, Inc.(Prime) Yakima Indian Nation (Ultimate Client)
- Aquifer Recharge and Water Resource Assessment, Walla Walla Basin , Oregon and Washington, Walla Walla Basin Watershed Council
- Groundwater and Soil Salinity Monitoring Network for Long-term Irrigation and Salt Management, Lower Colorado River, Arizona and California, US Department of the Interior Bureau of Reclamation, Boulder City, Nevada
- Groundwater/Surface Water Interaction Studies, Lower San Pedro River Preserve, Arizona, The Nature Conservancy, Arizona Chapter
- Recharge Water Sediment Removal Feasibility Study, Orange County Water District, California, HDR Engineering/Orange County Water District
- South Avra Valley Storage and Recovery Project, Tucson Water, Arizona, Errol L. Montgomery & Associates/Tucson Water
- Supplemental Hydrogeologic Study for the New River Aqua Fria Aquifer Storage and Recovery Project, Salt River Project, Arizona
- Assessment of Increased Recharge due to Urbanization and Stormwater Detention, City of Chandler, Arizona
- Pilot Project Monitoring and Site Feasibility Evaluation, Antelope Valley, California, USA, Western Development and Storage, LLC, California