AASHTO R 22-97 (2010)

This recommended practice addresses the permanent decommissioning (closure) of the following types of geotechnical exploratory boreholes. It is specifically intended to address the closure in situations where hazardous material or solid wastes are determined not to be present. Included in the list of geotechnical exploratory boreholes are:Boreholes progressed with temporary casing for obtaining soil, rock, and groundwater information;Uncased boreholes progressed for obtaining soil, rock, and groundwater information using drilling mud or open-hole techniques;Hollow-stem flight auger boreholes;Observation wells for monitoring groundwater conditions;Instrumentation boreholes (i.e., piezometers, Borros points, etc.);Cone penetrometer boreholes; andSoil characterization tests (vane shear, dilatometer, etc.).



Keywords: MA-R022-97-UL

Product Code(s): MA-R022-97-UL,MA-R022-97-UL