CTC Services, Inc. – DC-3 Cargo Plane Crash Site Assessment

After a DC-3 Cargo Plane crashed into a residential neighborhood, Source Removal and Site Assessment were required to address soil and groundwater impacts from an estimated 480-gallon discharge of aviation gas. Soil samples were collected for laboratory analysis prior to Source Removal due to the large volume of foam applied by the Ft. Lauderdale Fire Department to extinguish the plane fire. Elevated levels of volatiles detected by use of an Organic Vapor Analyzer (OVA) in the field were attributed to chemical properties of the foam. This discovery at the onset of the assessment minimized soil excavation and disposal resulting in significant savings for the plane owner’s insurance company. Ultimately, Broward County EPD granted a “No Further Action” status for this incident.

BECHTEL–Waste Management at Jacksonville NAS

Supervised installion of a filter-point concrete drainage system in a drainage ditch surrounding a landfill at the Jacksonville Naval Air Station. The drainage system was installed to control erosion and to contain runoff of contaminants.

CLIFF BERRY, INC. - UST Abandonment

AM supervised tank cleaning and prepared buoyancy calculations for abandonment of three 4,000-gallon and one 3,000-gallon UST that were filled with an inert light weight foam material approved by the FDEP. This innovative approach offers a viable option to the conventional method of abandoning tanks by filling with concrete in the event that future construction will require removal.

US SUGAR – Train Derailment - Source Removal/Limited Site Assessment Report

AM supervised excavation and removal of over 300 tons of soil and skimmed surface water from an irrigation ditch impacted by an estimated 1,000-gallon diesel fuel spill.  The discharge, which compromised surface and groundwater quality, occurred in the sugar cane fields as a result of a train derailment caused by Hurricane Wilma. An Interim Source Removal/Limited Site Assessment Report was developed that addressed residual groundwater contamination through natural attenuation. This approach achieved a No Further Action status in less than 6 months at significant savings to the client.

Cooperative Feeding Program – Alternative Procedure Plan for Remediation via groundwater/vapor extraction.

AM devised an Alternative Procedure Plan (APP) to address slightly elevated levels of dissolved volatile organic aromatics (VOAs) and polynuclear aromatic hydrocarbons (PAHS) in the groundwater at a former gas station site. The APP was developed as an exception to Rule 62-770.700 FAC to submit a Remedial Action Plan for active remediation. Groundwater extracted from existing monitor wells from a vacuum truck was proposed to aid in recovering vapors from the smear zone and skimming dissolved hydrocarbons from the surface of the water table.

The purpose of the APP was to impede migration of the existing groundwater plume. The goal was to reduce contaminant levels in the surficial aquifer to Natural Attenuation Monitoring Levels. The APP was implemented to expedite remedial efforts at the site and provide a cost effective solution for this privately funded cleanup by a non-profit organization. The APP was approved by the FDEP and the site is currently being monitored on a quarterly basis for Natural Attenuation Monitoring. 

COVE RESTAURANT & MARINA – Marina Dredge/Fill Permit

AM conducted sediment and water quality sampling to obtain a Standard General Permit to reconfigure/dredge a commercial marina. Field sampling was performed in accordance with procedures outlined in the Deepwater Ports Maintenance Dredging and Disposal Manual, FDEP. Due to unacceptable levels of arsenic detected in marina dredge sediments, stockpiled soils were analyzed by a Standard Elutriate Test Method to find a cost effective solution for disposal. Based on this analysis Broward County approved disposal of dredge sediments as a non-hazardous waste at a local Class I Landfill, effectively saving the client thousands of dollars in disposal costs. 

MARTIN COUNTY  TROPICAL FARMS  WWTP – Chlorine 62-780 Site Assessment 

Acting as a liaison between Martin County and the Florida Department of Environmental Protection (FDEP) Southeast District, a scope of work was negotiated with the FDEP Southeast District for assessment of an 800-gallon discharge of liquid chlorine from a damaged underground conduit. Impacted soil was excavated and stockpiled on site in a bermed containment area. The impacted soil was left open to vent to the atmosphere. Subsequent testing of the open stockpile indicated nominal chlorine concentrations. The FDEP approved spreading these soils on the surface in lieu of requiring disposal.  A Site Assessment Report was prepared in accordance with Chapter 62-780 FAC resulting in a “No Further Action” status granted by the FDEP.