Recently updated in 2003, ASTM D6462-03 on silt fence materials and installation requires compaction to be at least 50% of the insitu soil. To facilitate compaction, the specification also better defined the trench to be level full after compaction. As this updated specification is implemented, trenching will become economically unfeasible.
I bought my first tommy™ in ’98 and second in 2000. We’ve probably installed a couple of million feet of silt fence, so we’ve definitely challenged it in as many ways as possible. Some of these soils in California are nearly impenetrable, but we get it done with the tommy™. It just plain works great.
M-IV Equipment Rental Inc.
Santa Paula, CA