Carbonair specializes in providing temporary, on-site water treatment systems for treating contaminated water generated by construction dewatering activities. We recognize that contractors need to focus on completing their scope of work and shouldn't have to worry about maintaining groundwater treatment equipment used to treat the effluent from their construction dewatering system. Carbonair can provide you with a custom designed, fool proof water treatment system to treat contaminated water from construction dewatering on your next job. The Florida DEP recommends the following treatment of petroleum contaminated water found on construction sites. "These contaminated waters shall be treated by air stripping, followed by activated carbon adsorption, if necessary, or equivalent treatment to meet the following effluent limitations." Carbonair has a full line of rental groundwater treatment systems available for your construction dewatering projects including our diesel powered STAT Low Profile Air Stripper Trailers, or our Liquid Phase Carbon Vessels GAC, designed for this specific application.
Please call us or email Carbonair to get a design and estimate for an on-site groundwater treatment system for your next job that requires construction dewatering.
As part of a major highway improvement project, construction dewatering was required in an area in order to pour footings for an overpass. Contaminated water from an adjacent Superfund site was drawn into the dewatering stream, requiring treatment of the contaminated water stream prior to discharge on-site. Based on the large area being excavated, the high water table and the permeability of the soils, a flow rate of 3000 gpm was required to keep the excavation area dry during construction work.
Carbonair first met with the general contractor and environmental engineer to work out the required treatment system design and assess site logistics for system layout, delivery and installation.Challenges for this project included:
Carbonair designed and provided a 3000 gpm groundwater treatment system consisting of three (3 water treatment trains) individual 1,000 gpm treatment streams comprised of the following:
The construction dewatering systems were provided with all necessary components for operation in the field, including 30 horsepower transfer pumps with level controls, hose and fittings, distribution headers and a 100 kW generator for the system’s electrical power requirements. Carbonair's treatment systems were mobilized, installed and started up in less than five business days from the notice to proceed. The actual field installation of this groundwater treatment systems took three and a half days.
Carbonair's construction dewatering systems performed as designed and allowed the contractor to finish the installation of the footings ahead of schedule, saving them, and the DOT, a considerable amount of money. Carbonair was able to meet their short lead time for delivery of the water treatment equipment and was able to safely deliver, set up and then demobilize these construction dewatering systems in an extremely tight area adjacent to an operating highway and with overhead power lines at the site.
Demobilization was accomplished in just three days.
A mid-Atlantic environmental firm contacted Carbonair to develop a groundwater remediation treatment system for a Brownfield development project. Three office complexes were being built in downtown Washington DC. Each building included underground parking, requiring excavation 65 feet below grade.
Water samples revealed BTEX and TCE contamination, and hydrological testing indicated pumping rates of 1000 GPM would be necessary to allow construction to resume.Remediation treatment system design challenges on this project included:
Contact us about groundwater treatment systems for your next construction dewatering project.
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