A lake with a surface area of 1050 acres was monitored over a period of time. During a one month period, the inflow was 33 cfs, the outflow was 27 cfs, and a 1.5 in seepage loss was measured.
During the same month the total percipitation was 4.5 in. Evaporation loss was estimated as 6.0 in
Estimate the storage change for the lake during the month