Exploration no. 103220 is a Geotechnical (depth 32 feet) named: B-1 described in subsurface document no. 35220. The document, a report titled Foundation Investigation for Sewage Treatment Plant Additions by Shannon and Wilson, Sept 21, 1971 J No. W-2217-01 was prepared by Shannon and Wilson, Inc. on 08-18-1971 for a Utility project.