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�. H. KLEINFELDER & ASSOCIATES File No. S-2282-1 <br /> February 9, 1978 <br /> TABLE I <br /> NOTES TO LOGS OF BORINGS <br /> 1. *Number of blows required to drive 2-inch <br /> sampler 12 inches with a 140-pound hammer <br /> falling 30 inches +. <br /> 2. Boring depths are referenced to existing <br /> ground surface . <br /> 3. = Depth of relatively undisturbed sample . <br /> ❑ = Depth of sampling attempt with no <br /> recovery. <br />