Situation A"er sixty years of service, a large transformer owned by a major MidAtlan;c u;lity company needed to be replaced, and the stone within the containment area removed. The transformer had contained polychlorinated biphenyls (PCBs) un;l 15 years prior to this ;me, when the client flushed the oil and reclassified the containment as nonPCB. Despite the new classifica;on, areas of the stone within the containment had discolored over ;me, as the oil seeped into it. There was a risk that PCBoil had weeped into the stone, and so the company reached out to Triumvirate Environmental to remove the stone, test for PCBs, and segregate out the regulated waste. Action Triumvirate’s field services crew arrived onsite with a 3500 gallon HiDump Air Mover equipped with a top mounted boom, 3500 psi pressure washer, 20 cubic yard lined rolloff containers and support equipment to remove the stone and clean the transformer containment area. The contaminated stone was vacuumed from the containment area and collected in the HiDump Air Mover. This stone was then dumped directly into the rolloff. Nonregulated stone waste was transported and dumped onsite, in accordance with client direc;on. Once the stone had been removed and the drain was blocked with a plumbers plug, the field service team powerwashed the containment and collected the rinsate in the vacuum truck so that it did not enter the containment drain. Following the washing process, Triumvirate performed 3 wipe samples to test the surface of the containment for polychlorinated biphenyls (PCBs). Result Triumvirate removed 98 tons of stone from the transformer containment, segregated out approximately 40 tons of oilcontaminated material, loaded and shipped this material offsite for disposal, and thoroughly cleaned the 25foot long by 24foot wide by 3foot deep containment area. Test results were received within three days and indicated the area was clear of PCB’s. Case Study: Oil-Contaminated Stone Removal Major Utility Company Northern Virginia www.triumvirate.com | 1-888-TEI-WOWS Craig Childres Director of Field Services Mid-Atlantic Region [email protected]

Oil-Contaminated Stone Removal - Triumvirate

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Page 1: Oil-Contaminated Stone Removal - Triumvirate

SituationA"er sixty years of service, a large transformer owned by a major Mid-‐Atlan;c u;lity company needed to be replaced, and the stone within the containment area removed. The transformer had contained polychlorinated biphenyls (PCBs) un;l 15 years prior to this ;me, when the client flushed the oil and reclassified the containment as non-‐PCB. Despite the new classifica;on, areas of the stone within the containment had discolored over ;me, as the oil seeped into it. There was a risk that PCB-‐oil had weeped into the stone, and so the company reached out to Triumvirate Environmental to remove the stone, test for PCBs, and segregate out the regulated waste.

ActionTriumvirate’s field services crew arrived on-‐site with a 3500 gallon Hi-‐Dump Air Mover equipped with a top mounted

boom, 3500 psi pressure washer, 20 cubic yard lined roll-‐off containers and support equipment to remove the stone and clean the transformer containment area. The contaminated stone was vacuumed from the containment area and collected in the Hi-‐Dump Air Mover. This stone was then dumped directly into the roll-‐off. Non-‐regulated stone waste was transported and dumped on-‐site, in accordance with client direc;on. Once the stone had been removed and the drain was blocked with a plumbers plug, the field service team power-‐washed the containment and collected the rinsate in the vacuum truck so that it did not enter the containment drain. Following the washing process, Triumvirate performed 3 wipe samples to test the surface of the containment for polychlorinated biphenyls (PCBs).

ResultTriumvirate removed 98 tons of stone from the transformer containment, segregated out approximately 40 tons of oil-‐contaminated material, loaded and shipped this material off-‐site for disposal, and thoroughly cleaned the 25-‐foot long by 24-‐foot wide by 3-‐foot deep containment area. Test results were received within three days and indicated the area was clear of PCB’s.

Case Study:

Oil-Contaminated Stone RemovalMajor Utility CompanyNorthern Virginia

www.triumvirate.com | 1-888-TEI-WOWS

Craig ChildresDirector of Field ServicesMid-Atlantic [email protected]

http://www.triumvirate.com

mailto:[email protected]