. Records of water levels in wells in southern California . 142. 8 Lippincott, J. B., Development and application of water near San Bernardino, Colton, and Riverside,Calif., Part II: U. S. Geol. Survey Water-Supply Paper 60, pp. 97-141,1902. 9 Mendenhall, W. C, The hydrology of San Bernardino Valley, Calif.: U. S. Gecl. Survey Water-SupplyPaper 142, 124 pp. 12 pis., 1905. INTRODUCTIOl^r. 11 In addition to these wells in San Bernardino Valley, Mendenhall, onthe commencement of his studies of ground water in the valley ofsouthern Califorj^iia in 1904, selected for observation a series of wellslo
. Records of water levels in wells in southern California . 142. 8 Lippincott, J. B., Development and application of water near San Bernardino, Colton, and Riverside,Calif., Part II: U. S. Geol. Survey Water-Supply Paper 60, pp. 97-141,1902. 9 Mendenhall, W. C, The hydrology of San Bernardino Valley, Calif.: U. S. Gecl. Survey Water-SupplyPaper 142, 124 pp. 12 pis., 1905. INTRODUCTIOl^r. 11 In addition to these wells in San Bernardino Valley, Mendenhall, onthe commencement of his studies of ground water in the valley ofsouthern Califorj^iia in 1904, selected for observation a series of wellslocated in the coastal plain, foothill belt, and San Jacinto wells, which are designated as wells Nos. 1 to 85, inclusive, wereconsidered more or less typical for these important ground-water dis-tricts. The water levels in them were measured at irregular intervalsprior to 1913 and have been measured more regularly since 1913. Inches10 DEPARTURE FROM AVERAGE ANNUAL PRECIPITATION AT SAN Line A-Ai5avera|efor25years, n -t (0 m (V) _ w n 4- »0 U) r- CD m o n 4- 10 <.o r- 0 (T) 2 CD en2 0) 2 CD (D2 i o o(J) o 0) O o CD ff) (T) o 0) (5) (D cn CD cn m (J) 2 (VI n 4- 10 iO r:- cn (T) o 1 m 4- ax (T) 1 1 1 1 1 1 1 (!) (D 0) 0^ (S) 0) m 01 o o o o O o n — (VJ n 4- 10 ID CO CD 0) ou CO ou 0) CO 01 ff) o 0) C) cn (T) (Tt (J) cn 0) CD (D 0) O (T) (!) 20 30 W 50 60 — — — — — — ~ — — — — — — — — — — — — - — - — - — y \^ \ V. V, 1 1 1 1 i 1 1 1 WATER LEVEL IN WELL ^v PERRIS, CALIFORNIA ^ ^., A v.^ - - - Figure 1.—Graphs showing fluctuation of water level in well No. 72, in San Jacinto Valley, Calif., togetherwith precipitation at San Jacinto. For each well in the series now imder observation (Nos. 1 to 135, in-clusive) is given the owners name, the location, and other availableinformation. The location of each well is shown on the map (PI. I).For most of the wells is also given a description of th
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