Contamination accumulated over time on gravel under sample point. Nature’s Edge Industrial was applied, agitated with a rake and rinsed with water.
August 17, 2008
Noticeable improvement was evident immediately after cleaning. Within two days after application, gravel under sample point was restored to near normal. Ambient temperature was around 90 degrees F. and rain occurred during that time, helping to further accelerate the bioremediation process. No increase in TPH was detected downstream.