On February 22, 2008, a HVAC chiller water tank ruptured and released 64,000 gallons of contaminated water onto the Maniscalco Elementary School property. Within 24-hrs of being notified, CSI had a SBE emergency response subcontractor on-site establishing the spill area and installing a temporary security fence to isolate the impact area. Surface and/or subsurface soil samples were collected for total molybdenum and SPLP leachability analysis on March 6, March 17, March 31 and April 14, 2008. Shallow ground water samples were collected from three temporary monitoring well locations for molybdenum and arsenic analysis on March 7 and March 17, 2008. Five shallow permitted monitoring wells were installed on Aril 10 and 11, 2008. These wells were installed to a depth of 15 feet below land surface to evaluate potential impacts to the uppermost surficial aquifer within the area of investigation and samples were collected for molybdenum analysis on April 14, 2008. Based upon the results from these initial testing activities, additional monitoring well construction, soil and groundwater sampling, and collection of a water quality sample from the on-site water well for molybdenum analysis was conducted in July 2008.
Site assessment results have identified soil and shallow groundwater impacts in the area affected by the chill water release. Consequently, CSI is working with the SDHC and legal counsel to determine regulatory requirements and an appropriate site rehabilitation response. In addition, CSI will prepare and submit a Limited Site Assessment Report (LSAR) to more fully document the information included within the initial Summary of Findings.
The public relations component of this type of emergency spill response action is critical and requires a high level of technical expertise and concise communication with all parties involved, such as but not limited too; teachers, parents/students, HCSB staff/administration, local and state regulatory agencies, and legal counsel representatives.