Projects

Petroleum Distribution Terminal, Bridgeport, Connecticut

Coggin & Fairchild (C&F) was the primary consultant for an assessment and remediation project at a large petroleum distribution facility located along a tributary to Long Island Sound in Connecticut. The assessment activities included delineation of free product plumes which extended over an area of approximately four acres in both a perched water zone and a deeper tidally influenced semi-confined aquifer. A Geoprobe unit was utilized to delineate the various free project lenses, and to identify the boundaries of hte confining unit separating the two water bearing zones. Conventional monitoring wells were installed to evaluate groundwater conditions and aquifer parameters

The information obtained during the assessment phase was then used to design a free product/groundwater recovery and treatment system, and a soil vapor extraction (SVE) and treatment system. The recovery system uses combined liquid/vapor extraction wells, which are equipped with separate free product and groundwater recovery pumps, and connected to the SVE system. The recovered groundwater is treated at 40 gpm on-site to remove extreme concentrations of mTBE (over 2,000 ppm) and BTEX (over 50 ppm) and discharged through an NPDES permitted surface water discharge point. To comply with regulatory requirements, the assessment, design, permitting, installation and start-up phases of this project were completed during the six-month time period. C&F has successfully managed the projects for seven years. The complexity of the project and success of the remediation resulted in separate presentations to the Connecticut Department of Environmental Management and American Petroleum Institute.

Former Petroleum Distribution Terminal, West Boylston, Massachusetts

C&F worked in conjunction with the primary environmental consultant to design, permit, and install a groundwater recovery, treatment and reinjection system. The system was required to address a petroleum hydrocarbon and chlorinated solvent plume. Activities included an evaluation of the existing groundwater recovery and treatment system; completion of a full-scale pilot test of the proposed technology; and implementation of the final design.

Petroleum Distribution Terminals; Niles, Michigan, Dayton, Ohio; Louisville, Kentucky; & East Chicago, Indiana

C&F completed an evaluation of the existing remediation systems at these facilities and prepared recommendations for future activities to help comply with environmental and budgetary concerns.

Retail Home Centers; Morton Grove & Carol Stream, Illinois

C&F provided remediation oversight and soil disposal classification during the construction of a retail home centers on a properties contaminated with petroleum and chorinated solvents. Hazardous and Special Wastes were encountered during excavations for foundations and utilities. Conditions necessitated the use of Level B protection and the coordination of several subcontractors.

Service Station Site, Hammond, Indiana

C&F was the primary consultant for an assessment and remediation project at a a gasoline service station located up-gradient of a residential neighborhood in Hammond, Indiana. The assessment activities were conducted using a Geoprobe unit to collect soil and groundwater samples in conjunction with same day analytical results. This enabled C&F to fully delineate the multiple hydrocarbon plumes, which had migrated off-site, in a single field event. Once the plumes were delineated, the corrective action plan was submitted and approved by IDEM. C&F installed, operated and maintained the combined soil vapor extraction/groundwater recovery and treatment system for the site. The objectives of the corrective action plan were achieved within two years.

Service Station Facilities; Sun Prairie, Madison & Milwaukee, Wisconsin

C&F was a remedial design subcontractor to a national environmental consulting firm on these projects. In this position, C&F prepared the corrective action plans for soil and groundwater remediation for final review by the project manager at the primary consulting firm. The documents were then completed and submitted by the primary consultant. The remedial technologies presented in these corrective action plans included free product recovery with total fluids single pump systems, groundwater extraction with vacuum trucks, on-site groundwater treatment with air strippers, soil vapor extraction, and passive bioremediation.

Pipeline Release, Dixon, Montana

C&F was subcontracted by a national consulting company to provide remedial design expertise at a diesel pipeline release site in Western Montana. The project was located in a sensitive area within an Indian Reservation which further complicated the design process. The project included the completion of an SVE/Bioventing pilot test and preparation of a final design report. The results of the pilot test indicated that the proposed remedial technology would be very effective at this site.

Former Gasoline Service Station Facility, St. Charles, Missouri

C&F was a remedial design subcontractor for a private environmental consulting firm. In this position C&F prepared a corrective action plan for remediating the soil and groundwater at an operating fast food restaurant which was formerly a gasoline service station. The corrective action plan included the design of a combined groundwater recovery, SVE, and enhanced in-situ natural biodegradation system to reduce the concentrations to levels below the site clean-up objectives.

Oversight Services

C&F provided health and safety and construction oversight services to a Mt. Prospect based environmental consulting firm at a large petroleum refinery locate din Whitting, Indiana. These construction oversight services were completed on a well point dewatering system installation and groundwater monitoring well installation program. The services included the monitoring of the installation activities and the generation of field logs during the well installation program.