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The ElectroPhos site is a former elemental phosphorus production facility located near Mulberry, Florida. The ElectroPhos facility began operation in the 1950s and produced elemental phosphorous until 1983, when operations were suspended.
Due to concerns by the Florida Department of Environmental Protection (FDEP), BCI was retained to assess groundwater and surface water conditions to determine impacts by phosphorus from former phossy waste ponds on the property. An extensive contamination assessment, risk assessment, and remedial alternatives analysis was completed between 1997 and 2001. The assessment included installation of numerous monitor wells into the surficial and intermediate aquifers, collection and analysis of groundwater and surface water samples, and evaluation of contaminant impacts.
Following the assessment, BCI designed and managed the construction of a new containment system for the site, including construction of a soil-bentonite slurry wall and HDPE liner cap system surrounding the former phossy ponds. The slurry wall was keyed into a low-permeability soil layer at depths up to 62 feet below grade, over a distance of approximately 6,010 feet.
The project involved significant health and safety issues, and required a Health & Safety Plan to address potential site worker exposures to elemental phosphorus and associated compounds throughout duration of the project. Following construction, BCI conducted regular groundwater and surface water monitoring to verify performance of the site closure.
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