A series of two water storage tanks operates in an industrial complex. Water from the first tank at $90C$ is pumped to the second tank at a rate of $3\mathrm{.}0\frac{L}{s}.$ The pump motor is rated at $2\mathrm{.}0kW$ and is $75\%$ efficient. The water flows through a heat exchanger, cooling at a rate of $670kW.$ The second tank is at an elevation $15m$ above the first tank. What is the temperature of the water delivered to the second tank?