Complete turnkey dewatering treatment systems are available from Pure Effect, Inc. These systems are designed to accommodate the expected dewatering flow rate and to fulfill the requirements of discharge permits. When referring to the process of extracting and removing groundwater or surface water from a construction site, the term "dewatering" is the term that is used to describe the process. The process of dewatering is typically carried out by contractors who specialize in dewatering for a project site. Dewatering is an essential step in many construction projects that involve excavation below the static groundwater level. These projects include the construction of sub-surface parking structures, bridge caissons and piers, elevator shafts, and other similar structures.
The extraction of groundwater at the site is part of this procedure, which also involves the building of dewatering wells or French drains or trenches along the perimeter of the site. This process involves "drawing down" the groundwater level until a stable and dry state of the soil is obtained. The groundwater will continue to be pumped out of the dewatering wells until either the structure is constructed or there is sufficient mass to prevent the structure from floating. In general, it is advised that the dewatering system remain in place for two to three weeks after the scope has been completed. This is done to guarantee that the structure does not float and that the waterproofing does not leak.
At a construction site, dewatering is accomplished through the utilization of pumps to extract groundwater from the earth at the water table. This allows the water to be treated after it has been extracted. The groundwater that is collected from a dewatering project site is frequently contaminated, and it is necessary to treat the contaminated groundwater for construction water treatment systems that are either temporary or long-term before it can be discharged into the storm drain.
