1
Jeffery F Billings, Gale K Billings: Contaminant remediation, biodegradation and volatilization methods and apparatuses. Environmental Improvement Technologies, Deborah A Peacock, Rod D Baker, Jeffrey D Myers, December 5, 1995: US05472294 (42 worldwide citation)

Methods and apparatuses for removing contaminants. At least one injection well is drilled through the vadose zone to a depth below the water table defining the upper boundary of the aquifer. A plurality of venting wells or venting laterals are established to a depth above the water table sufficient ...


2
Jeffery F Billings, Gale K Billings: Contaminant remediation, biodegradation and volatilization methods and apparatuses. Deborah A Peacock, Donovan F Duggan, August 5, 1997: US05653288 (11 worldwide citation)

Methods and apparatuses for removing contaminants. At least one injection well is drilled through the vadose zone to a depth below the water table defining the upper boundary of the aquifer. A plurality of venting wells or venting laterals are established to a depth above the water table sufficient ...