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10 Only weak conclusions can be drawn from observed changes in the relationship of diversions to inflows. In April and May there has been an increase in diversions in relation to inflows since 1961. In the remainder of the season, there has been a slight dimi.nishing of diver- sions for unit inflows. The effect of irrigation practices on the area and that of the different priority calls cannot be separated at this level of the study, however, it may prove worth-while to do so at a later date. . In some months there is a much better regression between the two variables using a parabola instead of a strai0ht line. Implications of this may be significant; however, the exploration of it falls beyond the scope of this study. The straight line regression equations and correlation coefficients are tabulated below. Correlation Mon th EQua tion Coefficient Apr 11 Diversions = -0.11 Inflow + 11 ,530 -0.43 May Diversions = -0.05 Inflow + 33,710 -0.51 June Diversions = -0.03 Inflow + 45,170 -0.24 July Diversions = 0.22 Inflow + 36,130 0.67 August Dl.versions = 0.28 Inflow + 29,410 0.64 Sep tember Diversions = -0.06 Inflow + 29,050 -0.24 , October Diversions = -0.20 Inflow + 16,450 -0.65 Season Diversions = -0.04 Inflow + 184,370 0.39 , Analvsis of Historic Reservoir Contents Contents of reservoirs which have storage decrees in Water Dis- trict 2 and which have capacities of over 1,000 acre-feet are measured and recorded by the water commissioner on the first day of each month. For analysis purposes the reservoirs were divided into two groups, the first includes reservoirs within the District, and the second includes reservoirs owned by the Henrylyn Irrigation District located in neighbor- ing Water District 1 but having points of diversion in Water District 2. The available data for both groups were tabulated and also la-year moving averages were tabulated and plotted on a monthly basis. Reservoirs within Water District 2 The average amount of water stored in Barr, Milton, Latham, and Standley Reservoirs during the 32 years was 35.9 thousand acre-feet with a monthly distribution of. Jan 33 Feb Mar 39 44 Apr May 48 54 Jun 53 Jul 48 Aug 33 Sep 20 Oct 14 Nov Dec 18 27 thousand acre-feet. To show the variatio~s in the amount'of water in stor- age the following table gives the observed range, i.e., the span between maximum and minimum for each month.