*10.2.4 Recharge pit*

Recharge pits are constructed for recharging a trivial aquifer. They can be circular rectangular or square. They are generally 1–2 m wide and 2–3 m deep. The Water that is diverted to ground water table should be residual free. In order to achieve that condition the pits after excavated are filled with stones, sands and boulders which act as a filter medium. Cleaning of the pit area should be done from time to time. Small buildings can have roof top area up to 100 m<sup>2</sup> . If the pit is trapezoidal, the side slopes should be steep enough to avoid silt deposition [17].
