Apparatus and method for environmental surveying for contaminant

Boring or penetrating the earth – With signaling – indicating – testing or measuring – Indicating – testing or measuring a condition of the formation

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175 71, E21B 312

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active

054070198

ABSTRACT:
Apparatus and method for environmental surveying for contaminants in alluvial materials and bedrock formations including using a portable pneumatic rotary percussion drilling machine with an air compressor that powers the drilling and provides an air circulation fluid, the machine also utilizing a perforated rock drill bit and hollow stem drill rod; a vacuum pump is connectable with the hollow stem drill rod for sampling.

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"Monitoring Well Drilling, Soil Sampling, Rock Coring, and Borehole Logging" by H. E. Hank Davis et al, pp. 195-237.

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