MONITORING AND RESEARCH

GSA has earned a leading reputation in designing and implementing monitoring systems and developing research programs to evaluate hydrologic and ecological processes. GSA has deployed and maintained instrumentation for long-term monitoring of climate, vadose zone flow and transport, surface water flow and quality, and groundwater elevation and quality. GSA’s monitoring systems are designed to withstand environmental conditions while meeting data requirements. Because of the harsh environments and uniqueness of GSA projects, we have developed proprietary sensors to meet specific project needs. GSA is also unique in that we operate a hydrologic testing laboratory that uses state-of-the-art methods to determine saturated/unsaturated flow properties of porous media. The laboratory specializes in determining the flow properties of soils and waste material with significant amounts of gravel fragments under various conditions of saturation and load pressure.

+ Project Examples

• Willow Wetland Monitoring and Applied Research, Middle Rio Grande, Central New Mexico, U.S. Army Corps of Engineers, Albuquerque Area Office
• Soil Moisture Monitoring, Palo Verde Ecological Reserve, Blythe, California, Bureau of Reclamation, Lower Colorado Regional Office
• 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
• Riparian Revegetation Feasibility Studies, Cibola National Wildlife Refuge, Arizona, Bureau of Reclamation, Lower Colorado Regional Office
• Groundwater/Surface Water Interaction Studies, Lower San Pedro River Preserve, Arizona, The Nature Conservancy, Arizona Chapter
• Rangeland Inventory on the Navajo Nation, Parametrix, Inc. (Prime), US Bureau of Indian Affairs, Eastern and Western Navajo Regional Office (Ultimate Client)
• Long-Term Riparian Restoration Vegetation Monitoring, Lower Colorado River, Arizona and California, Parametrix, Inc. (Prime), US Bureau of Reclamation, Lower Colorado Regional Office (Ultimate Client)
• Laguna Grande Restoration Design and Monitoring, Santa Ana River, California, Sonoran Institute, Upper Gulf Legacy Program