Alissa Coes is a Supervisory Hydrologist for the USGS Water Resources Mission Area.
Alissa joined the USGS in 1995 and is currently the Water-Quality Specialist for the Arizona Water Science Center. She has interest in a wide range of water-quality and groundwater issues. As Water-Quality Specialist for Arizona, she oversees the protocols for, and the quality of, water-chemistry data collected by the center. Her current projects include an investigation of the aquifer system along the All-American Canal in southeastern California; and a methods-comparison investigation of water-samples collected with standard discrete methods, passive sampler methods, and continuous sampler methods. Alissa received her B.S. in Geology-Biology from the University of Rochester and her M.S. in Hydrology from the University of Arizona.
Alissa first joined the USGS in 1995 while she was a M.S. student in Hydrology at the University of Arizona. As a USGS student trainee, Alissa was involved in groundwater-quality surveys in southern and central Arizona for the NAWQA program. She also was involved in a hydrogeologic study of the San Pedro Basin where she investigated groundwater—surface water interactions using geochemical and isotopic methods.
Alissa became a hydrologist for the USGS Arizona Water Science Center in 1997, where she continued her work on groundwater-quality surveys in Arizona for the NAWQA program. Alissa also continued her work in the San Pedro Basin where she investigated the rates and distribution of ephemeral-channel recharge using unsaturated-zone methods.
In 2003, Alissa became a hydrologist for the USGS North Carolina Water Science Center. In North Carolina, Alissa investigated the spatial and seasonal variability of recharge to shallow coastal plain aquifers using saturated and unsaturated zone methods. She also was involved in a groundwater availability study where she co-developed a groundwater flow model of the Atlantic Coastal Plain aquifer system of North and South Carolina.
In 2007, Alissa returned to the USGS Arizona Water Science Center where she began her work as the Center's Water-Quality Specialist. She is currently investigating the aquifer system along the All-American Canal in southeastern California; and beginning a methods-comparison investigation of water-samples collected with standard discrete methods, passive sampler methods, and continuous sampler methods.