Nishikawa, Tracy 2022"Hydrologic and geochemical characterization of the Petaluma River watershed, Sonoma County, California" in USGS Reports2021"Volcanic Aquifers of Hawai‘i—Construction and calibration of numerical models for assessing groundwater availability on Kaua‘i, O‘ahu, and Maui" in USGS Reports2018"Santa Barbara and Foothill groundwater basins Geohydrology and optimal water resources management—Developed using density dependent solute transport and optimization models" in USGS Reports2015"Natural recharge estimation and uncertainty analysis of an adjudicated groundwater basin using a regional-scale flow and subsidence model (Antelope Valley, California, USA)" in Hydrogeology Journal2014"Simulation of groundwater and surface-water resources of the Santa Rosa Plain watershed, Sonoma County, California" in USGS Reports2014"Groundwater-flow and land-subsidence model of Antelope Valley, California" in USGS Reports2013"Hydrologic and geochemical characterization of the Santa Rosa Plain watershed, Sonoma County, California" in USGS Reports2011"Hybrid‐Optimization Algorithm for the Management of a Conjunctive‐Use Project and Well Field Design" in Ground Water2006"Water Resources Investigations at Edwards Air Force Base since 1988" in USGS Reports2006"Geology, ground-water hydrology, geochemistry, and ground-water simulation of the Beaumont and Banning Storage Units, San Gorgonio Pass area, Riverside County, California" in USGS Reports2006"Geohydrological characterization, water-chemistry, and ground-water flow simulation model of the Sonoma Valley area, Sonoma County, California" in USGS Reports2005"Evaluation of geohydrologic framework, recharge estimates and ground-water flow of the Joshua Tree area, San Bernardino County, California" in USGS Publications2003"Evaluation of the Source and Transport of High Nitrate Concentrations in Ground Water, Warren Subbasin, California" in USGS Report2001"Water Supply in the Mojave River Ground-Water Basin, 1931-99, and the Benefits of Artificial Recharge" in USGS Publications