Case Study: Diesel and Oil Contaminated Soil (Military Air Station, South Texas)
Original Date of Case Study:
Submitted By:
Product: Piranha
Site Location & Description: Military Air Station in South Texas
Approximately 1,500 m3 of soil contaminated by a mixture of diesel fuel and oil. The soil was excavated and moved to a lined treatment pad.
Contaminants: Diesel Fuel & Oil
Geology: Caliche and Sandy Soil
Starting Levels: TPH levels ranged from 3,500 to 8,000 ppm.
A sample composite was prepared by collecting 30 samples from randomly selected points.
Cleanup Standards – per the State of Texas (TCEQ) \
- TPH (total petroleum hydrocarbons) - less than 50 ppm.
- BTEX (benzene, toluene, ethylbenzene, and xylenes) - non detect
- MTBE (methyl tertiary-butyl ether) - non detect
Treatment Method - in situ: The soil spread evenly over a 170 x 30 meter area on a black plastic liner. The product was applied to the soil. The soil was watered and tilled.
The site was tilled two more times over a 6 week treatment period and watered, as per recommendations to promote rapid biodegradation of the hydrocarbons present in the soil.