|Illustration 1: Typical Example of a Diesel Tanker Truck Rollover on a rural road in winter|
In April, 2012, a tanker truck, containing a full load of diesel fuel, was disabled and rolled over on a highway in Northern Ontario, spilling diesel fuel onto the adjacent land, wetland, and waterway. The truck was removed and an initial site clean up was completed. Representatives from the MOE(Ministry of the Environment) and MNR(Ministry of Natural Resources) were consulted, soil and water samples were taken, and the residual amount of contamination was determined to be sufficient to initiate a remediation program as soon as possible. The impacted area was approximately 50 ft. X 50 ft. X 1-2 ft of depth. The water table was below the impacted site at approximately 5 ft. (initial levels of TPH were determined to be 300,000 ppm(parts per million) on site).
The client called our office and advised us of the details involved and we put together a treatment program to address the particular characteristics of the site – large wetland area on one side of the road where the tanker had lost the fuel, with a waterway leading out of the wetland into a culvert below the roadway and out to a creek bed on the other side of the road.
Product was prepared and shipped to the contractor's location and delivered the following day. Over the next 4 days the site received 4 – 6 inches of snow. In the meantime, the contractor was building his equipment to treat the site and he was able to apply the first treatment as the snow was melting – a few days later. Our remediation plan called for a staged dosing of oil eating microbes, natural surfactants plus nutrients for a period of 35 days. Readings were taken on the 25th day and the TPH had dropped to below 6000 ppm. On the 50th day additional readings were taken and levels were below detectable range for TPH but a few individual fractals were reported in the 200-250 ppb(parts per billion) range. Even though the microbes were continuing to reduce the hydrocarbons, an additional dose of microbes was added on the 61st day, just to be sure that the site would be released as clear in the next few days.
Independent readings were taken at the site and they confirmed our preliminary findings. The site was released and the bog was only minimally impacted by the remediation process.
Our products are used daily by professionals in all seasons to treat situations like this one – if you encounter a situation like this give us a call at our toll free number – 866 621 8244 Monday – Friday 9:00 – 5:00 Eastern time and we'll be happy to provide you with a timely, cost effective solution to hydrocarbon contaminated soil or water. Come to our website at www.eatoils.com to see our other products and information.