The project design tells you the septic tanks need to be placed in a wet site. The excavation for the tank is almost finished when water starts to enter the hole through the side face. This means it will be difficult to set the tank level and keep it stable without some additional work. You will have to bring in a solid coarse base to set the tank on and dewater the site. But what does it mean to dewater the excavation?Dewatering is the removal of ground or surface water from a construction site to allow work to be done
