<prompt> Problem village if water is in depth more than5 mts10 mts15 mts20 mts  <response>: A problem Village has been defined as one where :No source of safe water is available within a distance of 1.6 km ORWater source has excess salinity, iron, fluorides other toxic elements ORWater is exposed to the risk of choleraWater is available at a depth of more than 15 mts OR 