J. H. Koehler

• Artificial recharge in the northern part of Chino ground-water basin, upper Santa Ana Valley, California
• Ground water in the Koehn Lake area, Kern County, California
• Ground water in the northeast part of Twentynine Palms Marine Corps Base, Bagdad area, California
• Ground-water conditions during 1969
• Ground-water conditions during 1969 in Indian Wells Valley, California
• Ground-water conditions during 1970 in Indian Wells Valley, California
• Water resources at Marine Corps Supply Center, Barstow, California for the 1969 fiscal year
• Water resources at Marine Corps Supply Center, Barstow, California for the 1971 fiscal year
• Water resources at Marine Corps Supply Center, Barstow, California, for the 1968 fiscal year