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About EGGI

Meet the Senior Team

Ken Hardcastle, Ph.D., P.G. -- Project Manager

Ken Hardcastle (Ken.Hardcastle@eggi.com) is an experienced senior geologist who has focused his technical career on groundwater exploration and development. He has become well known for his work in utilizing satellite images and aerial photography in conjunction with detailed geologic mapping.  Dr. Hardcastle’s contribution to the delineation of favorable groundwater development sites has been instrumental in identifying high yield wells suitable for use as public supplies and/or commercial purposes.  Dr. Hardcastle has supervised or participated in over 750 groundwater investigations at EGGI since 1989 throughout New Hampshire and the Eastern United States.  Ken Hardcastle is an experienced structural geologist and project manager of groundwater resource projects who has an advanced understanding of:

  • Senior Project Management
  • Regional (large-scale) groundwater exploration and development projects
  • Remote sensing analysis, imagery manipulation and enhancement
  • Geologic mapping with emphasis on brittle crust and fluid flow evaluations
  • Mapping and interpretation of bedrock structural features
  • Geophysical surveys (collection and analyses of data)
  • Development of software for the analysis of geophysical, lineament, fracture, and brittle fault data
  • Design of protocols/templates for use with AutoCad and GIS software
  • Database design and integration with GIS
  • Computer network design, management, and utilization

Publications

Foster, P.J., Emery, J.M., and Hardcastle, K.C., 2012, The Impacts of the Earthquake that Struck Near Mineral Virginia on Groundwater Resources in Northern Virginia.  Oral presentation at the 61st Annual Meeting of the Southeastern Section of the Geological Society of America, Asheville, North Carolina.

Emery, J.M. and Hardcastle, K.C.,2011, Abstract, The Impacts on Groundwater Resources in Northern Virginia that were caused by the recent 5.8-Magnitude Earthquake in Mineral, Virginia.

Hardcastle, K.C., Brooks, J.A., and Tinkham, D.J., 2007, DEM Analysis for Surficial Mapping in the Lakes Region, New Hampshire. Poster presentation at the 42nd Annual Meeting of the Northeastern Section of the Geological Society of America, University of New Hampshire, Durham, New Hampshire.

Foster, Peter J., Hardcastle Ken C., Brooks, John A., and Emery, James M., 2006, Groundwater Exploration and Development in Sedimentary and Igneous Rocks of the Mesozoic Culpeper Basin, Fauquier County, Virginia – A Case Study; Geo. Soc. Am., Abs. and Prog., v. 38, no. 3, p. 12.

Wise, D.U., Mabee, S.B., and Hardcastle, K.C., 2003, Preliminary geology and assessment of groundwater potential at Cresta de Sacramento, Palpa, Peru, presented to the Mayor of Cresta de Sacramento, Peru.

Brooks, J.A., Hardcastle, K.C., Allen, R.P., Foster, P.J., Howard, P.E., 2002, Geophysical Investigation of Groundwater Contamination, Case Study of the Laurel Valley Landfill, Culpeper, Virginia, EEGS Proceedings of the Symposium on the Application of Geophysics to Environmental and Engineering Problems.

Mabee, S.B., Curry, P.J., and Hardcastle, K.C., 2002, Correlation of Lineaments to Groundwater Inflows in a Bedrock Tunnel, Ground Water, v. 40, no. 1, p. 37-43.

Mabee, S.B., and Hardcastle, K.C., 1997, Analyzing Outcrop-Scale Fracture Features to Supplement Investigations of Bedrock Aquifers, Hydrogeology Journal, v. 5, no. 4, pp. 21-36.

Brooks, J.A. and Hardcastle, K.C., 1996, Lineaments, Fracture-Supported Lineaments and Yields of Existing Wells in the Valley Ridge at Northern Virginia, Geo. Soc. Am., Abs. and Prog., v. 28, no. 3, p. 42.

Mabee, S.B., Hardcastle, K.C., and Wise, D.U., 1994, A Method of Collecting and Analyzing Lineaments for Regional-Scale Fractured-Bedrock Aquifer Studies, Ground Water, v. 21, no. 6, p. 884-894.

Hardcastle, K.C., 1995, Photolineament Factor: A New Computer-Aided Method for Remotely Sensing the Degree to Which Bedrock is Fractured, Photogrammetric Engineering and Remote Sensing, v. 61, no. 6, pp. 739-747.

Hardcastle, K.C. and Hills, L.S., 1991, BRUTE3 & SELECT: QuickBASIC 4 programs for determination of stress tensor configurations and separation of heterogeneous populations of fault-slip data, Computers & Geoscience, v. 17, no. 1, 23-43.

Mabee, S.B., Hardcastle, K.C., and Wise, D.U., 1990, Correlation of lineaments and bedrock fracture fabric: Implications for regional fractured-bedrock aquifer studies, preliminary results from Georgetown, Maine, Proc. FOCUS Conf. on Eastern Reg. Ground Water Issues, no. 3, 283-297.

Hardcastle, K.C. and Albaugh, D.S., 1990, Structural Aspects of a fault-related, paleo-hydrothermal system in the Lakes Region, central New Hampshire: Timing of a regional Mesozoic paleo-stress change?, Tectonics, v. 9, no. 4, 623-639.

Hardcastle, K.C., 1989, Possible Paleo-stress configurations derived from fault-slip data in eastern Vermont and western New Hampshire, Tectonics, v. 8, 265-284.

Hanson, R.E., Wilson, T.J., Brueckner, H.K., Onstott, T.C., Wardlaw, M.S., Johns, C.C., and Hardcastle, K.C., 1988, Reconnaissance geochronology, tectonothermal evolution, and regional significance of the Middle Proterozoic Choma-Kalomo Block, southern Zambia, J. Precambrian Res., v. 42, 39-62.

Presentations

Williams, K.W., Mabee, S.B, Curry, P.J., and Hardcastle, K.C., 2001, Surface vs. Subsurface Fracture Characteristics along Cross Strike Transect in Eastern Massachusetts, GSA Abstracts with Programs, vol. 33, no. 6.

Mabee, S.B, Curry, P.J., and Hardcastle, K.C., 2001, Correlation of Lineaments to Ground Water Inflows in the MWRA Tunnel, GSA Abstract with Programs, vol. 33, no. 6.

Kratt, C., and Hardcastle, K.C., 2001, Mapping Reproducible Lineaments using Digital Elevation Models, GSA Abstracts with Programs, vol. 33, no. 6.

Williams, K.W., Curry, P.J., Mabee, S.B., and Hardcastle, K.C., 1999, Surface and Subsurface Fracture Characterization and Correlation Along a Cross-strike Transect in Eastern Massachusetts, American Geophysical Union, abstract H51B-04.

Curry, P.J., Hardcastle, K.C., Mabee, S.B, and Williams, K.W., 1999, Factors Influencing Groundwater Inflows in a Newly Constructed Cross-Strike Tunnel, Eastern Massachusetts: Lineaments and Subsurface Structures, GSA Abstracts with Programs, vol. 31, no. 7.

Hardcastle, K.C., Curry, P.J., Williams, K.W., and Mabee, S.B., 1999, Factors Influencing Groundwater Inflows in a Newly Constructed Cross-Strike Tunnel, Eastern Massachusetts: Fracture-Supported Coincident Lineaments and Subsurface Structures, GSA Abstracts with Programs, vol. 31, no. 7.

Mabee, S.B., Williams, K.W., Curry, P.J., and Hardcastle, K.C., 1999, Factors Influencing Groundwater Inflows in a Newly Constructed Cross-Strike Tunnel, Eastern Massachusetts: Surface vs. Subsurface Fracture Characteristics, GSA Abstracts with Programs, vol. 31, no. 7.

Williams, K.W., Mabee, S.B., Hardcastle, K.C., and Curry, P.J., 1999, Factors Influencing Groundwater Inflows in a Newly Constructed Cross-Strike Tunnel, Eastern Massachusetts: 4. Occurrence and Characterization of Groundwater Inflows, GSA Abstracts with Programs, vol. 31, no. 7.

Curry, P., Williams, K., Mabee, S., and Hardcastle, K.C., 1998, Comparison Lineaments with Bedrock Structures along a Cross-Strike Transect, Eastern Mass., Geol. Soc. of Amer., Abst. and Prog.

Hardcastle, K.C., 1998, Lineament Fabric of Tenants Harbor, Maine, Northeast Section Geol. Soc. Am., Abs. and Prog., v. 30, no. 1.

Brady, J.J., and Hardcastle, K.C., 1998, Fracture Fabric of Tenants Harbor, Maine, Northeast Section Geol. Soc. Am., Abs. and Prog., v. 30, no. 1.

Hardcastle, K.C., 1996, Fracture Mapping with Remotely-Sensed Lineaments – the 60% Factor, Northeast Section Geol. Soc. Am., v. 28, no. 3, p. 62.

Mabee, S.B. and Hardcastle, K.C., 1996, Fracture Characterization – Valuable Inputs for Modeling Groundwater Flow in Fractured Bedrock, Northeast Section Geol. Soc. Am., Abs. and Prog., v. 28, no. 3, p. 77.

Mabee, S.B., and Hardcastle, K.C., 1995, Use of Outcrop-based Observations as Indicators of Subsurface Fluid Flow in Fractured Grandiorite, Raymond, California, Geol. Soc. Am., Abs. and Prog., v. 27, no. 6, p. A-105.

Chair at Symposium on Practical Methods for Evaluation of Groundwater In Fractured Bedrock at the Northeast Section Meeting of the Geological Society of America, 1993.

Hardcastle, 1993, Fracture Fabric of the Mesozoic Culpeper Basin and Adjacent, Pre-Triassic Crystalline Rocks, invited to the Northeast Section Geol. Soc. Am., Abs. and Prog., v. 25, no. 2, pp. 21-22.

Hardcastle, K.C., 1992, Correlation of Lineaments and Fracture Fabric in the Piedmont:
Implications for the Study of Fractured Bedrock Aquifers, Geol. Soc. Am., Abs. and Prog., v. 24, no. 2, p. 19.

Brooks, J.A. and Hardcastle, K.C., 1992, Magnetics and the Detection of Sub-Surface Water-Bearing Zones, Culpeper Basin, Virginia, Geol. Soc. Am., Abs. and Prog., v. 24, no. 2, p. 5.

Wise, D.U. and Hardcastle, K.C., 1992, Field Evidence for Paleo-Seismic Patterns Across New England, invited to the American Geophysical Union, v. 73, no. 14, p. 306.

Hardcastle, K.C., Brooks, J.A., Emery, J.M., and Tinkham, D.J., 1991, Remote Sensing of Groundwater-Controlling, Bedrock Fracture Systems: Photolineament and Magnetometer Analyses in the Culpeper Basin, Virginia, Geol. Soc. Am., Abs. and Prog., v. 23, no. 1, p. 41.

Hardcastle, K.C., Emery, J.M., Tinkham, D.J., and Brooks, J.A., 1991, Photolineament Factor Analysis: A new computerized method of remotely assessing the degree to which bedrock is fractured, NWWA Conf. Innov. Ground Water Tech. of the 90’s.

Hardcastle, K.C., Fleischmann, K.F., and Wise, D.U., 1989, Evolution of brittle deformation in New England: Evidence from post-orogenic veins and fracture-fillings, Geol. Soc. Am., Abs. and Prog., v. 22.

Mabee, S.B. and Hardcastle, K.C., 1989, Ground truth: Bedrock fracture fabric, lineaments and bedrock-well yield, Georgetown, Maine, Geol. Soc. Am., Abs. and Prog., v 22.

Albaugh, D.S. and Hardcastle, 1989, A correlation between fracture fabrics, faults, and seismicity in the central New Hampshire Lakes Region, invited for the Neotectonics in New England Symposium, Northeast Section Geol. Soc. Am., Abs. and Prog., v. 21, 1.

Wise, D.U. and Hardcastle, K.C., 1988, Regional paleo-stress tensors from slickensided surfaces across central New England, Geol. Soc., Am., Abs. and Prog., v. 20.

Ken Hardcastle's photo


Recognized experts in groundwater exploration, development, management, and protection.