Superfund Projects

BAI has been involved in providing environmental services to more than 20 superfund projects in several different capacities.  As evidenced by the projects listed below we have designed, constructed and currently operate three sites.  We have also provided the design and construction services to modify and upgrade several systems to process higher flow rates and run more efficiently.  We also provide comprehensive O&M services for several of these treatment systems, with excellent run time rates and 100% compliance with their discharge permits.  We have listed some of our key Superfund projects below, please contact Bigler Associates, Inc. if we can provide similar services for your project.

Representative Superfund Projects

USEPA Region III Superfund Site (Design-Build-Operate) - The scope of work included treatability studies, system design, construction, startup and O&M for a 75 gpm pump and treat system.  The system includes nine extraction wells and trench system, flow equalization, air sparging, metals precipitation, greensand filtration, liquid and vapor phase carbon and sludge thickening and dewatering.  BAI has operated the system since the completion of construction in May 2002 with excellent run time and a 100% compliance record.

USEPA Region II Superfund Site (Design-Build-Operate) –  The treatment systems provided by BAI included: two large air sparge (AS)–soil vapor extraction (VE) systems (220 AS wells, 80 VE wells);  a pure oxygen, 180 well point,  biosparge system with on site oxygen generation; and a trailer mounted AS-SVE system used for treatment of contaminated “hot spots”.   The treatment system at one of the sites was closed down after 3 years when clean up criteria was attained.  
 
USEPA Region III Superfund Site (Design-Build-Operate) - BAI provided design, construction and O&M services for this 50-gpm groundwater extraction and treatment system.  The project included an innovative design that resulted in significant cost savings for design, construction and O&M .  The treatment system includes a 2,000-foot long double wall force main,  automation for unattended operation; flow equalization/air sparging tank; metals precipitation; greensand filtration; liquid phase GAC; sludge conditioning; filter press; effluent holding tank; and vapor phase GAC system.

USEPA Region II Superfund Site (Comprehensive O&M Services) -  BAI provides comprehensive O&M services for this highly automated, 305-gpm groundwater remediation system.    The treatment system includes extraction wells, flow equalization, pH adjustment, chemical feed systems, metals precipitation, fluidized bed reactors, pressure filtration, air stripping, groundwater reinjection, sludge conditioning and dewatering and off-gas treatment with activated carbon. 

USEPA Region II Superfund Site (Comprehensive O&M Services, System Re-build) – The treatment system is housed is in a historic building to fit well with surrounding dwellings.  BAI provides comprehensive O&M services for the system that includes recovery wells, flow equalization, pH adjustment, filtration, shallow tray air stripping, liquid phase carbon, ion exchange, off-gas treatment with catalytic.  When a fire damaged the building BAI responded by rebuilding the treatment system within an aggressive construction schedule.