All Drinking water wells, public and private, should be tested periodically for bacterial contamination. Bacterial contamination can come from surface water, flooded well pits, malfunctioning equipment, and this is just a few of causes or contamination. Bacterial contamination is the common means of contracting water born diseases and illnesses. Symptoms can be as minor as a runny nose or other cold like conditions, or as severe as stomach flu or irritable bowels. The cost of having your water tested for bacteria is extremely nominal compared to possible doctor office visits!