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2. Koehler, J. H. (1983). Artificial recharge in the northern part of Chino Ground-Water Basin, Upper Santa Ana Valley, California (Water-Resources Investigations Report 82-4122). Sacramento, CA: U.S. Geological Survey.
3. Moreland, J. A. (1972). Artificial recharge in the Upper Santa Ana Valley, Southern California (U.S. Geological Survey Open-File Report). Menlo Park, CA: United States Geological Survey.