(4)Cleanliness to be maintained in and around well. - Where the water supply is drawn from a well in a prison, the well shall be cleaned out once a year. Well water shall be preserved pure by the daily withdrawal of a large quantity of water, by the removal of decomposing matter, by obviating the re-entrance of water taken out, and specially by preventing the percolation of sewage. No prisoner shall be allowed to bathe or wash his clothes at the well from which the drinking water is drawn. Storage tanks and reservoirs shall be emptied and cleaned out before the rains.
