August Mack provides Enviornmental Consulting/Engineering Services and Remedial Construction Services for support to a client located in Ohio through a Master Services Agreement. The facility is undergoing a voluntary Resource Conservation and Recovery Act (RCRA) Corrective Action through the United States Environmental Protection Agency (USEP) Region 5. There are a total of 21 Solid Waste Management Units (SWMUs) and 13 Areas of Cocnerns (AOCs) at the facility. Of those, 14 have undergone investigation.

The work activities at the site have included, but are not limited to:

• RCRA Facility Investigations (sediment, subsurface soil, and groundwater) Interim Measures (IM) design and implementation
• Waste removal actions
• Agency negotiations and interactions

RCRA requirements can be met at any pace set by the client. However, this client chose to take an aggressive and quick approach to their RCRA issues and to date, have completed the RCRA 2020 Corrective Action Environmental Indicator (EI) milestone CA725 (Current Human Exposures under Control). August Mack has installed 311 soil borings and 59 groundwater monitoring wells since investigations began.

August Mack has also completed numerous IMs that have resulted in the removal of:

• 2,309 tons of impacted hazardous soils and 544 tons of arsenic/TPH-DRO impacted soils.
• 3,000 pounds of hazardous bulk paint waste and 3,866 tons of PAH/arsenic/chromium impacted non-hazardous soils.
• 487 tons of PCB impacted soils from following TSCA guidelines.

Additionally, August Mack has completed an Arsenic Background Study, a hydraulic oil extraction IM, and an In-situ Chemical Reduction (ISCR) IM of Emulsified Vegetable Oil with Zero Valent Iron (eZVI) to mitigate solvent impacts. The ISCR IM included the installation of 60 injection points and 676 gallons of eZVI. Five follow-up bioaugmentation injection points of the bacteria strain dehalococcoides were also installed as part of the ISCR IM. August Mack worked closely with the client to complete work efforts under tight time frames during limited plant shutdowns as to not impact the client’s business. August Mack exceeded expectations and completed each project within the given budget and timeframe, providing the client with optimum service.