Trichloroethylene (TCE) Superfund Site
Confidential Client, Malvern, Pennsylvania 

• Design review and finalization 
• Self perform construction of a landfill cap and soil vapor extraction system 
• Operation and maintenance

Schedule:

• Construction- 8 Months 
• O&M - 2 years

Budget:

• Construction- $2 Million 
• O&M - $350,000/year

• Demolition of an existing manufacturing facility 
• Construction of a 2 acre cap over the area of demolished facility 
• Installation of a Soil Vapor Extraction System (SVE) in an area that was previously used as a drum disposal area
• Ongoing operation and maintenance and monitoring services

• Self performed construction by mobilizing multiple in-house construction teams to contain costs and to meet the expedited project 
• O'Brien & Gere provided construction service including, but not limited to the following:
  • Engineering
  • Surveying 
  • Soil erosion and sediment controls
  • Air monitoring
  • Odor and dust control
  • Excavation and disposal of hazardous and non-hazardous soils 
  • Installation of extraction wells and monitoring wells
  • Installation of electrical service and wiring of all operational systems 
  • Piping including HDPE, welded steel and PVC 
  • Installation of packaged blower system, vapor phase carbon system, and permanent fence 
  • Constructed the wellhead control building foundation, SVE blower building foundation, and vapor
  • phase carbon foundation 
  • System start-up and testing
  • Field sampling / initial characterization samples
• O'Brien & Gere provides O&M service including, but not limited to the following:
  
  • Treatment plant operator labor, three days per week, 8 hours per day to complete the daily, weekly and monthly monitoring forms and perform the routine maintenance items.
  • Project management oversight including attendance at scheduled meetings.
  • Project Equipment including vehicles, Photoionization Detector (PID), laptop computer, calibration equipment and any other equipment needed for the operation and maintenance of the SVE system.
  • Consumables, to include Tedlar bags for PID sample collection/field analysis, oils and greases for the mechanical equipment, filters, belts and other expendables needed to maintain proper operation of the SVE Equipment.
  • Quarterly collection of the air phase samples for TO-15 analysis.
  • Routine O&M is performed to achieve operational up-time of 90% or greater.
  • The site logbook is maintained and entries are completed whenever personnel are present onsite.
  • Maintenance activities are performed based on the maintenance schedule as detailed in the site Operations and Maintenance Manual.
  • Treatment system extraction wells are balanced to maintain the maximum contaminant removal.
  • The SVE system is operated to minimize the collection of water through the condensate collection system.
  • Collection water elevation readings from all SVE wells weekly.
  • Collected data is transmitted to the client project coordinator and the Site Engineer as part of the weekly report.
  • The carbon change out services for the carbon adsorption units (“GACs”) include replacing carbon in two, 2,000 lb. GAC units every 6.5 weeks.
  • Transportation and regeneration/disposal of the spent carbon
  • Grounds maintenance including 5 mowing events per year of the capped and adjacent area.
  • Road maintenance including the periodic repair of settlement or erosion of the site access road.
  • Snow plowing as needed at the facility.
  • Maintenance of the fence, gates and attached signs.
  • Response to site alarms to maintain the >90% operational time of the system.
  • We currently provide labor, materials and equipment to perform one fertilization event for the capped area using a liquid fertilizer.
  • Performance of preventative maintenance tasks, including belt replacement, oil changes, instrument calibration and an overall inspection of site conditions.
  • Weekly Reports include the submission of operator-generated forms.
  • Quarterly Reports are prepared and submitted 30 days after the end of the calendar quarter. These reports consist of weekly field information and field data compiled into tables for easier review and a summary of site maintenance activities including a downtime analysis.
  • The Annual Report is prepared and submitted and consists of a tabulation of field data from the quarterly reports.