Conduit Manufacturer, Northern Illinois

Mr. Smith was Project Manager for the investigation and remediation of a 16-acre site purchased by the client. The site was first occupied in 1918, but was abandoned at the time of the site investigation, which detected elevated concentrations of lead in the soils throughout the site, as well as lead concentrations in groundwater above potable use standards. Within one month of initial contact with the Illinois Environmental Protection Agency (IEPA), a redesignation of the groundwater was negotiated, allowing the purchase to proceed. Site specific soil cleanup objectives calculated using IEPA approved methodology were approved by the IEPA. Remediation activities included the excavation and disposal of more than 15,000 cubic yards of soil, removal of four (4) USTs and abatement of greater than 100,000 square feet of asbestos containing material.

Following the excavation of the impacted soil, various grades of backfill were used to prepare road subbases capable of supporting heavy truck traffic. In areas not to be used for future roads, the backfill was placed to maintain a level grade over a 300-foot distance. The site remediation activities were conducted concurrently with the complete renovation of a 330,000 square foot building on the site and were completed in less than four (4) months. This necessitated close coordination and frequent meetings with the contractors not associated with the remediation activities.

School District, Northern Illinois

Mr. Smith was Project Manager for the remediation of a LUST site located at a high school in Northern Illinois. Mr. Smith oversaw the design, construction, and operation of a sequenced series of aerated biopiles. Given the limited available space, five (5) individual biopiles were constructed only after each previous biopile had been remediated and the soil returned to the excavation.

Steel Manufacturer, Northern Illinois

Mr. Smith was Project Manager for the preparation of a Corrective Measures Study under RCRA for the remediation of groundwater contaminated with chlorinated solvents. The project consisted of installing and running pump tests on nested monitoring wells, modeling groundwater flow direction and velocity, evaluating a variety of potential remediation technologies, and performing a risk assessment. The Corrective Measures Study followed the requirements of USEPA's guidance documents. This was one of the first Corrective Measures Studies in Region 5 and Mr. Smith worked closely with USEPA to insure the agency's concerns were addressed prior to the client undertaking a major phase of the project. During the evaluation of alternatives, it was demonstrated that: given the client owned all of the property between the landfill and the river and this land would remain industrial property and the installation of potable groundwater wells in this area would be prohibited, groundwater treatment was not required.

The risk assessment demonstrated that the discharge of impacted groundwater to the river would not pose an adverse human health risk. Based on this risk assessment, a limited action alternative involving continued groundwater monitoring was approved by the U.S. EPA, but no other equipment installation was required.

CFB Cogeneration Facility, Northern West Virginia

Mr. Smith was Project Manager for the remediation of greater than 25,000 cubic yards of soil contaminated with heavy metals from an abandoned glass manufacturing building. Remediation activities included: soil excavation, treatment, stockpiling, and placement on-site. The treated soil was used to raise the overall elevation of the site. The construction schedule for the cogeneration facility required that parcels of the site undergo partial closure rather than closure of the entire site as a whole.

Gas Station, Central Wisconsin

Mr. Smith designed soil vapor extraction system for site contaminated with gasoline products. Project included evaluation of remediation alternatives, communication with the client, and design of soil vapor extraction system.

Underground Storage Tank Investigation and Remediation at a Heating Plant, Chicago, Illinois

Mr. Green prepared a three-dimensional computer model of the site facilities demonstrating the presence of a third source of PNAs/PAHs in the soil, of an undetermined origin, that was physically separate from the five (5) regulated 20,000-gallon underground heating oil storage tanks. This sophisticated modeling was necessary as the tank impacted soil, the cinder fill material and the third source of an undetermined origin, all contained PNAs/PAHs, although in somewhat different concentrations. Mr. Green left the soil impacted by an undetermined source in place, then managed the cinder fill material as a separate waste distinct from the soil impacted by the release from the 20,000-gallon heating oil storage tank, saving the client greater than $1 million in remediation costs.

Mr. Green provided field management during the removal of five (5) 20,000-gallon underground storage tanks and the excavation, transportation and disposal in a permitted landfill, of approximately 3,000 cubic yards of soil impacted with PNAs/PAHs. Mr. Green also managed the design, installation and operation of a groundwater pump and treatment system, and coordinated its operation with the design, installation and operation of the site de-watering system. Closure sampling, designed and managed by Mr. Green, demonstrated that the impacted soil and groundwater were successfully removed. Mr. Green also provided field management during the installation of three (3) 35,000-gallon underground storage tanks.

Mr. Green prepared a Corrective Action Completion Report that was approved by the Illinois EPA. This report contained three-dimensional modeling of the site to differentiate the soils impacted by the UST release from the release of undetermined origin, and also from site fill material that contained cinders and building materials from the early 20th century.

RCRA Investigation and Remediation, Northeast Illinois

Mr. Green prepared a RCRA Closure Plan that successfully demonstrated the efficacy of microorganisms to remediate approximately 5,000 cubic yards of soil impacted with chlorinated solvents, without leaving vinyl chloride as an end product. Upon completion of the bioremediation, performed by a subcontractor, Mr. Green collected soil and groundwater closure samples demonstrating that the constituents of concern were remediated to concentrations below their respective clean-up objectives. In the final phase of the project, Mr. Green prepared a RCRA Closure Documentation Report that was approved by the IEPA.

Investigation, Underground Tank Removal and Risk-Based Remediation of Chlorinated Solvents, Indianapolis, Indiana

Mr. Green designed and performed subsurface investigations to assess the extent of soil and groundwater impacted with solvents associated with a leaking underground tank at a printing press service facility located in Indianapolis, Indiana. The investigations included drilling 21 soil borings and the installation and sampling of six (6) groundwater monitoring wells as deep as 200-feet. Mr. Green managed the removal, cleaning and disposal of the leaking underground tank and its contents.

Risk-Based Closure activities performed by Mr. Green include fate and transport modeling of two (2) chemicals of concern using Visual MODFLOWâ, MT3D®, and AutoCADD 14â. The fate & transport modeling performed by Mr. Green demonstrated that plumes of the chemicals of concern in groundwater would stabilize within 100-years, and would not migrate off-site or down to the usable aquifer within 1,000-years. This modeling effort enabled the client to proceed with a risk-based site closure, saving more than 20% compared to proposed active treatment options.

 

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