About Services Contact Sperling Geophysics Corporation Mr. Tedd F. Sperling, President Download Resume (PDF) Geophysicist/Geologist CPG-2297 600 Bluebell Drive Lansing, MI 48911 USA 517.393.1339 Sperling Geophysics Corporation -- Where Geoscience gets down to Earth. This site Validates under the fol...