BIO REM® USA, INC.

 

"Soil & Water Decontamination Specialists"

 

ENVIRONMENTAL PRODUCTS & SERVICES

 

CASE HISTORY 91092402

  *This customer has requested anonymous disclosure discretion, please contact Bio Rem for additional project information.

 

SITE:

Wellhead at oil production site.

BIODEGRADED MATERIAL:

 

Crude Oil.

SITE SURVEY:

 

Site and geological surveys had revealed a contaminated area around the wellhead. The cause of the contamination was a result of spillage during the pumping operation. Samples were obtained from four of the boreholes, which were then drilled to characterize the site. The initial laboratory samples revealed that the levels of contamination were actionable. Results indicated levels ranging up to 5960 ppb total xylenes. The vertical extent of the contamination was between 1 and 9 feet. The soils encountered ranged from sandy soil at the surface to very dense clay starting at two feet, down to the 10-foot level and below.

METHOD:

 

Insitu bioremediation was approved. The contamination was treated without excavation. This was possible because Bio Rem’s proprietary H-10 bacteria works in low-level oxygen conditions. The bioremediation was conducted by placing bacteria and water into the infiltration borings. Monitoring of the vapors from the borings traced the progression of the treatment.

 

The treatment with Bio Rem H-10 bacteria began on Oct. 15, 1991 and samples analyzed by an independent lab confirmed acceptable levels of BTEX in their report dated June11, 1993. The results of the laboratory analysis were obtained using U.S. EPA Method 8020.

COMMENTS:

 

This site has received a "no further action" status from the state authority. The property has no tie to a disposal site, with its future liabilities being eliminated from this contamination.