The West Side Research and Extension Center (WSREC) site is approximately 35 miles southwest of Fresno and 10 miles east of Interstate 5 on the west side of the San Joaquin Valley. The facility actively operates as an agricultural research station with mixed crop plantings (cotton, wheat, corn, etc.). Surrounding activity is field crop-agricultural with Harris feed company approximately 9 miles west (southwest) and the Lemoore Naval Air Station is approximately 9 miles east of the site. In addition to the sampling area, the WSREC facility offers housing for onsite personnel, a shop area, laboratory space and a classroom/conference room area.