Previously Funded Basin Studies

Reclamation has funded 25 studies since Fiscal Year 2009.

2017

2016

  • American River Basin - Reclamation partnered with Placer County Water Agency City of Roseville, City of Sacramento, El Dorado County Water Agency, City of Folsom, and the Regional Water Authority. The study area encompasses 2,140 square miles from the Sacramento River to the northern Sierra Nevada mountains. (Completed Study Report)

Basin Study Updates

  • Santa Fe Basin Study (New Mexico)
  • St. Mary and Milk River Basins Study (Montana)

2015

Plan of Study

  • Middle Rio Grande (New Mexico)
  • Mojave River Basin (California)

2014

2013

Plan of Study

  • Carson River Basin Plan of Study
  • Arkansas River Basin Plan of Study (Colorado, Kansas and Oklahoma)
  • Willamette River Basin Plan of Study (Oregon)

2012

  • Los Angeles Basin Study - Reclamation partnered with the Los Angeles County Flood Control District and the Southern California Area Office to fund this study. The study area encompasses 1,900 square miles including the Los Angeles River, San Gabriel River, North Santa Monica Bay, South Santa Monica Bay, Dominguez Channel/Los Angeles Harbor, and Ballona Creek watersheds. Learn more at the Project Website (Completed Study Report)
  • Pecos River Basin Study - Reclamation partnered with the New Mexico Interstate Stream Commission to fund this study. The study area focuses on the Fort Sumner Underground Water Basin (Fort Sumner Basin), within the Pecos River Basin, New Mexico. (Completed Study Report)
  • Republican River Basin Study - Reclamation partnered with the States of Colorado, Nebraska, and Kansas. The study area covers the Republican River Basin in eastern Colorado, southern Nebraska, and northern Kansas down to the Clay Center gauging station in Kansas. (Completed Study Report)
  • Sacramento-San Joaquin Rivers Basin Study - Reclmation partnered with the California Department of Water Resources, California Partnership for the San Joaquin Valley, Stockton East Water District, El Dorado County Water Agency, and the Madera County Resources Management Agency. The study area encompasses the entire Central Valley of California. (Completed Study Report)
  • Upper Washita River Basin Study - Oklahoma

2011

  • Hood River Basin Study - Reclamation partnered with the Hood River County Water Planning Group to fund the study. The study area encompasses a 339 square-mile region in Hood River County in north-central Oregon. (Completed Study Report)
  • Klamath River Basin Study - Reclamation partnered with the State of California Department of Water Resources and State of Oregon Water Resources Department to fund the study. The study area encompasses 12,100 square miles along the boundary of California and Oregon. (Completed Study)
  • Lower Rio Grande Basin Study - Reclamation partnered with the Rio Grande Regional Water Authority to fund the study. The study area encompasses 122,400 square miles along the United States/Mexico border from Fort Quitman, Texas to the Gulf of Mexico. (Completed Study Report)
  • Santa Fe Basin Study - Reclamation partnered with the City of Santa Fe and County of Santa Fe to fund the study. The study area is in northern New Mexico and southern Colorado. (Completed Study Report)

Plan of Study

  • Greater Los Angeles (California)
  • Sacramento-San Joaquin Rivers (California)
  • Republican River (Kansas and Nebraska)

2010

Plan of Study

  • Klamath Basin Study (California and Oregon)
  • Taos Pueblo Water Supply and Demand Basin Study (New Mexico)

2009

  • Colorado River Basin Study - Reclamation partnered with the Colorado River Basin States to fund the study. The study area encompasses the Colorado River Basin States including portions of Arizona, California, Colorado, Nevada, New Mexico, Utah and Wyoming. You can learn more about this project on their website. (Completed Study Report)
  • St. Mary and Milk Rivers Basin Study - Reclamation partnered with the Montana Department of Natural Resources and Conservation to fund the study. The study area encompasses north-central Montana, southern Alberta and Saskatchewan in Canada and includes the Blackfeet and Ft. Belknap Indian Reservations. They have also developed a Plan of Study. (Completed Study Report)
  • Yakima River Basin Study - Reclamation partnered with the Washington Department of Ecology - Office of Columbia River to fund the study. The study area is located in south-central Washington. Completed Study Report
Last Updated: 4/5/24