Abstract: A method and system for collecting ground water segregated from storm water are provided in which an existing storm sewer pipe may be retrofitted by forming a ground water channel and a storm water channel therein. The two channels may be formed by disposing a lining within the existing pipe which segregates the pipe into two distinct flow passageways. A new pipe may also be similarly used for collection of ground water.

Abstract: Methods and apparatus for vacuum extraction of contaminants from the ground which, in a preferred embodiment, involves vacuum withdrawal of liquid and gaseous phases as a common stream, separation of the liquid and gaseous phases, and subsequent treatment of the separated liquid and gases to produce clean effluent. A primed vacuum extraction employs a single vacuum generating device to remove contaminants in both the liquid stream and soil gases through a single well casing utilizing a priming tube which introduces air or other gas to the liquid collected at the bottom of a well. The present invention permits vacuum extraction of both liquids and gases from the subsurface by way of wells having a liquid layer which is more than thirty feet below the soil surface or in which a screened interval of the extraction pipe is entirely below the liquid surface.

Abstract: Method and apparatus for testing soil samples in which two similar samples of soil to be cyclic simple shear tested are positioned on opposite sides of a loading plate and subjected to a load normal to the plate. Simultaneously, the plate is moved transversely to apply a dynamic load to the samples. Soil response is studied by monitoring both loads and the transverse movement of the plate.

Abstract: A process of constructing a storage facility, such as a tank, and the resultant storage facility product having an integral foundation is disclosed. Piles having conjoining sides are driven into the earth along a storage facility perimeter and pressure grouted to form a watertight perimeter. The piles penetrate into the earth to a depth where either the percolation of any acquifier into the storage facility or the leakage of product from the storage facility can be prevented. After installation of the piles. Soil is thereafter excavated below the existent ground level from the interior of the closed pile perimeter to the storage facility depth. The excavated soil is placed in a preferably compacted embankment immediately exterior of the piles perimeter where it extends above the ambient ground level. This compacted embankment together with the subterranean portion of the pile perimeter is maintained in a closed fluid-tight relation by the soil pressure arching adjacent piles compressively together.

Abstract: Evaporation of water from a salt-saturated liquid is facilitated by adding a particulate solid having a density greater than that of the saturated liquid, and by maintaining a thin surface layer of liquid by settlement of the solids to leave an optimum one to two mils thickness of said layer.Agitation is employed to restore the optimum thin layer, as required to overcome excessive settling or too rapid evaporation of the thin layer, referred to respectively, as a heavy layer of liquid, or a dry surface skin.

Abstract: Water evaporates from a thin film, which can be developed over the surface of soil/water slurries, at a rate as much as 30 times that of the normal pan evaporation rate in a given locale. Utilizing this discovery, a slurry having suspended solid particles which are heavier than water are placed in a shallow lagoon. The slurry is then periodically agitated through its entire profile. This agitation is repeated as often as either the formation of a dry surface appears over the lagoon or, alternatively, a noticeable clear water skin forms over the suspended solids of the slurry. By the expedient of sequentially repeating the agitation, evaporation of water present in the slurry can occur at a rate on the order of 30 times the normal pan evaporation rate of a given locale.