By Ralph Vasquez

The process of dewatering a property is a vital step in the course of many new construction projects. A procedure carried out by environmental engineers, dewatering is a process in which groundwater contained within the site’s soil is extracted, ensuring a stable foundation for the intended structure.

Note that not all construction projects require dewatering. If, for instance, the property owner is simply building slab on grade at the site, dewatering most likely is not necessary since, chances are, builders would not need to dig the foundation deep enough to reach groundwater. However, if excavating for an underground parking structure, groundwater may become an issue which will effect the flow of construction phase.

During new construction, as well as after construction is completed, it is vital that owners know how to properly dispose of the excess groundwater they have accumulated throughout the construction process. There are several options property owners may consider when contemplating what is the most cost, time and energy efficient way to dispose of groundwater which may include discharging to a storm drain, the city sewer system, or using the water for irrigation purposes after construction has been completed.

Additionally, everyone involved in the construction/development process needs to remain updated on the newest legislation and requirements for disposing of wastewater in order to avoid unnecessary penalties. Recently, new policies from the City of San Diego have been enacted, such as, changes to the application process, testing criteria, pretreatment process, flow-metering requirements, and permit renewal authorization.

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