1. Amir-Faryar B. O'Connell D.P. and Suter K.E. (2011). "Report of subsurface exploration and geotechnical assessment." Professional Service Industries Inc. (PSI). PSI Project Number: 0512418 Fairfax Virginia.
2. Barksdale R.D. Bachus R.C. and Calnan M.B. (1982). "Settlement of a tower on residual soil." Proceedings conference on engineering and construction in tropical and residual soil. Honolulu Hawaii.
3. Barksdale R.D. Ferry C.T. and Lawrence J.D. (1986). "Residual soil settlement from pressuremeter moduli." Proceedings conference on use of in-situ tests in geotechnical engineering. Blacksburg Virginia.
4. Department of Public Works and Environmental Services and Northern Virginia Soil and Water Conservation District (2008). "Description & interpretive guide to NRCS mapped soils in Fairfax County." Report 43 pp.