Leslie H Pennington
General Contractor in Bountiful, UT
License number
Utah 1049518-S470
Issued Date
Feb 25, 2003
Category
Contractor
Type
S470 - Petroleum System Qualifier
Address
Address
Bountiful, UT
Personal information
See more information about Leslie H Pennington at radaris.comName
Address
Phone
852 Windsor Ln, Bountiful, UT 84010
Professional information
Expendable Protective Sleeve And Method Of Use For Soil And Groundwater Sampling
US Patent:
5673762, Oct 7, 1997
Filed:
Dec 29, 1995
Appl. No.:
8/580629
Inventors:
Leslie Howard Pennington - Bountiful UT
International Classification:
E21B 4902
US Classification:
175 20
Abstract:
A method for obtaining saturated soil samples includes conventional drilling equipment with a central hollow which receives a conventional soil sample collection device. An elongate sleeve with a closed end is nested about the sample collection device to prevent soil from entering the sample device before it is in position adjacent the soil to be sampled. Once in position, force is applied to the sample collection device to drive it into the soil. As the sample collection device is driven into the soil, it penetrates through the sleeve. The sample collection device is then withdrawn, leaving the sleeve in the hole formed by the collection device to help prevent collapse of the walls. The sleeve also helps to minimize any negative pressures which might develop as the sample collection device is withdrawn and which can result in soil plugging the central hollow of the auger.
System For Sparging Ground Water Contaminants
US Patent:
5425598, Jun 20, 1995
Filed:
Aug 12, 1993
Appl. No.:
8/105756
Inventors:
Leslie H. Pennington - Bountiful UT
International Classification:
B09B 100
US Classification:
405118
Abstract:
Apparatus and method for sparging ground water by developing density driven convection and promoting the physical removal and biodegradation of contaminants. The method includes providing a well casing having two fluid permeable sidewalls separated by a fluid impermeable sidewall, and inserting the well casing into a generally vertical borehole so that the fluid permeable sidewalls are positioned below the water table. An injector tube is provided in the well casing so that a lower end thereof is located at the lower end of the well casing and below the level of ground water collected in the well casing. Gas under pressure is forced out the lower end of the injector tube and into the ground water collected in the well casing to cause the gas to carry water upwardly within the well casing and out the well casing through the uppermost fluid permeable sidewall. This causes water to be drawn into the lowermost fluid permeable sidewall, producing a vertically oriented circulation of ground water into the lower end of the well casing and out the uppermost permeable sidewall.