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A lake whose surface area could be approximated to be circular with a diameter of 2750...

A lake whose surface area could be approximated to be circular with a diameter of 2750 m has a water surface elevation of 128.917m at the beginning of the month of August.During that month the lake received a streamflow of 172 mm from a catchment of 6225 ha. The average precipitation during the month was 181 mm, and the average rate of evaporation was to be 5mm/d. The monthly seepage was 30 mm. The average outflow from the lake during the month was 3.67 m3/s. Compute the water surface elevation at the end of the month and the change in storage (in m3).

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