Areas of the San Joaquin Valley and Tulare Lake Basin where drainage problem lands occur.

Click to enlarge. Courtesy of California Department of Water Resources.

Additional Resources:

• Kesterson National Wildlife Refuge
  
• Grasslands Bypass Project
• Central Valley Salinity
• Selenium
• The Land Retirement Option
  
• Read C-WIN's Poisoned Lands Policy Brief

Since the late 1960s the federal Central Valley Project, and later the State Water Project, supply irrigation water to growers irrigating approximately 1.3 million acres of drainage-problem lands on the west side of the San Joaquin Valley and Tulare Lake Basin.