Case Studies

EMS has completed more than a thousand projects of varying size and complexity. Below is a featured case study from each segment but feel free to read through the case studies under each to get a sample of the types of work we’ve completed.

Environmental & Industrial

Featured Case Study: Former automotive stamping plant – Hilliard, OH

EMS provided characterization and removal of various hazardous and non-hazardous waste containers in addition to bulk waste removal and confined space industrial cleaning. EMS removed approximately 250,000 gallons of oil and water from two oil water separators and five press pits and pressure washed all surfaces utilizing 5,000 psi hot pressure wash units. EMS safety protocols required the implementation of lockout/tagout procedures, confined space procedures and continuous air monitoring throughout the work.

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Emergency Response

Featured Case Study: Derailment – Northern Ohio

EMS’ Emergency Response division responded to a rail car derailment for a major transportation terminal following the release of 13,000 gallons of flammable liquid. Upon arrival, EMS’ incident commander applied his extensive remediation system experience to expedite installation of a product recovery system. EMS mobilized a multidisciplinary crew to complete installation and provide 24-hour product recovery service. EMS simultaneously assisted in delineating the extent of the spill through precision test pitting, including air knife excavation near a major fiber optic line. EMS also conducted extensive confined space entry work, examining on-site subterranean structures for spill-related waste. After establishing the limits of the spill, EMS assisted in the design of remediation technologies to mitigate off-site migration and consequently completed the installation of approximately 500 linear feet of sheet piling to prevent product from impacting a nearby marsh. Following the initial response, EMS was retained to provide daily product recovery support and waste transportation services while assisting the on-site consultant with additional exploratory excavation, temporary water treatment system installation and site maintenance.  In total, EMS mobilized two incident commanders, two project managers, six supervisors, 10 operators, 15 technicians, seven vacuum trucks, three roll-off trucks, two air knives with compressors and 12 service trucks, in addition to multiple pieces of heavy equipment, 10 carbon vessels and four fully equipped project trailers.

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Oil & Gas

Featured Case Study: Shale gas drill pads – Eastern Ohio

EMS was contracted to provide 24-hour on-site solidification services for multiple drill pads. Operator/supervisors were assigned to shale gas drill pads, where they employed the use of excavators to mix drill cuttings and related process fluids with power ash to solidify the waste in preparation for disposal. Operators were responsible for continuously solidifying and loading out waste to enable the drilling operations to flow seamlessly. Additionally, operators assisted with other rig duties as requested.

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Remediation & Tanks

Featured Case Study: Former Lockbourne Air Force Base – Columbus, OH

EMS was contracted to manage, excavate, transport and consolidate approximately 400,000 cubic yards of contaminated soil and general trash debris into an engineered onsite consolidation cell. The design called for placement of contaminated soil and waste in compacted layers, then for the installation of an impervious clay cap system, topsoil placement and seed stabilization, and the installation of gas vents. This consolidation cell also had a perimeter leachate collection system installed to collect any water infiltration for offsite removal activities. The work area was located in a densely wooded area that had to be cleared prior to excavation and consolidation efforts. Once clearing was completed, temporary sediment and erosion control measures were installed, and when the consolidation cell was near completion, EMS constructed several sediment and water retention ponds, permanent access roads and permanent perimeter fencing. EMS also backfilled all onsite excavations with compacted clay fill. This project involved close coordination with the Louisville District of the U.S. Army Corps of Engineers. This project, during its course, nearly doubled in size due to additional uncovered wastes identified in the field. EMS was able to quickly adjust field activities and consolidation cell engineering designs to accommodate the additional volume of material encountered.

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