Resources
Publications
- Drill Bits Magazine: Spring 2013 article on, "Sample Collection Comparison for Environmental Drilling" by Craig Coolidge of SGS, edited by Thomas Daizell of AMS, Inc.
- Australasian Drilling Journal: Feb-March 2014 article on, "Value in Multipurpose Subsurface Explorations" by Craig Coolidge of SGS, Thomas Daizell of AMS, Inc., and Simon Tant of Chadwick Geotechnics
- 2nd Symposium on the Presumpscot Formation, October 28, 2015 on, "Geotechnical Seismic Design in New England" by Craig Coolidge of SGS
- 69th Highway Geology Symposium, September 10-13, 2018 on, "Geotechnical Seismic Design in New England" by Craig Coolidge
- Abstract: "Use and Application of Piezocone Penetration Testing in Presumpscot Formation" by Craig Coolidge of SGS