Consulting Hydrogeologists Since 1989
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About EGGI

Meet the Senior Team

John Brooks, Ph.D, P.G.-- Project Manager

John Brooks BrooksJA@eggi.com is a highly experienced hydrogeologist and geophysicist who has focused his technical career in delineating groundwater resources using glacial mapping and geophysical survey techniques. He has applied his skills in conducting and interpreting geophysical investigations to aid in the specific identification of favorable drilling targets for development of high yield wells. Since 1990, he has been involved in over 800 groundwater exploration, development, and protection projects at EGGI.  His experience and responsibilities include:

· Senior project management and senior technical advisor
· Groundwater exploration and development in unconsolidated aquifers
· Groundwater exploration and development in fractured crystalline bedrock

· Supervision of geophysical department
· Development of geophysical protocols for groundwater exploration and development
· Modeling of geophysical data

· Mapping and interpretation of bedrock lithology and structural discontinuities
· Mapping and interpretation of glacial geomorphology

· Design, installation, and development of monitoring and production wells
· Organization, design, and management of aquifer testing programs
· Aquifer and well field analysis
 

Publications

Brooks, J.A., 2013, Proto-Winnipesaukee and Squam: Deglaciation of the Winnipesaukee Basin, New Hampshire Geological Survey’s Annual Geologic Mapping Workshop 2013, April 16, 2013, NHDES, Concord, New Hampshire.

Brooks, J.A. and Emery, J.M., 2011, Evaluating Recharge Sources for Bedrock and Sand & Gravel Production Wells, The 2011 New Hampshire Water and Watershed Conference, March 25-26, 2011, Plymouth State University, Plymouth, New Hampshire.
 
Brooks, J.A., 2010, Water Resources Management with the Aid of Modeling.  Presentation given at the New Hampshire Water Works Association Operators' Training Session, "Groundwater Issues," NHDES Auditorium, Concord, New Hampshire.
 
Tinkham, D.J., and Brooks, J.A. 2010, Surficial Geology of the Holderness, 7.5 minute Quadrangle, Belknap, Grafton, and Carroll Counties, New Hampshire, scale 1:24,000, NH Geologic Survey open file report.

Brooks, J.A., and Emery, J.M., 2010, NH Water Works Association, April Technical Meeting, Presentation: Water Supply Development from Bedrock Aquifers in Newmarket, New Hampshire.

Brooks, J.A. and Tinkham, D.J., 2009, Surficial Geology of the Bristol, 7.5 minute Quadrangle, Grafton County, New Hampshire, scale 1:24,000, NH Geologic Survey open file report.

Brooks, J.A. and Tinkham, D.J., 2008, Surficial Geology of the Wolfeboro, 7.5 minute Quadrangle, Carroll County, New Hampshire, scale 1:24,000, NH Geologic Survey open file report.

Brooks, J.A. and Tinkham, D.J., 2007, Surficial Geology of the Great East Lake, 7.5 minute Quadrangle, Carroll County, New Hampshire, scale 1:24,000, NH Geologic Survey open file report.

Brooks, J.A. and Tinkham, D.J., 2007, Insights into the Wisconsin Deglaciation of 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.

Tinkham, D.J., Foster, P.J., Emery, J.M., and Brooks, J.A., 2007, Implications for Aquifer Analysis from Discrete, Anisotropic Water Level Impacts Observed During Pumping Tests Performed in Fractured-Bedrock Aquifers. Oral presentation at the 42nd Annual Meeting of the Northeastern Section of the Geological Society of America, University of New Hampshire, Durham, New Hampshire.

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.

Brooks, J.A. and Tinkham, D.J., 2006, Surficial Geology of the Pittsfield, 7.5 minute Quadrangle, Merrimack County, New Hampshire, scale 1:24,000, NH Geologic Survey open file report.

Guest Speaker, “The Development of Additional Resources at the Penacook-Boscawen Water Precinct County Farm Site,” NH Water Works Association Meeting, September 2005.

Brooks, J.A. and Tinkham, D.J., 2005, Surficial Geology of the Great East Lake, 7.5 minute Quadrangle, Carroll and Strafford Counties, New Hampshire, scale 1:24,000, NH Geologic Survey open file report.

Brooks, J.A. and Tinkham, D.J., 2004, Surficial Geology of the West Alton, 7.5 minute Quadrangle, Belknap County, New Hampshire, scale 1:24,000, NH Geologic Survey open file report.

Brooks, J.A., 2004, Surficial Geology of the Northwood 7.5 minute Quadrangle, Belknap County, New Hampshire, scale 1:24,000, NH Geologic Survey open file report.

Tinkham, D.J. and Brooks, J.A., 2003, Surficial Geology of the Northfield, 7.5 minute Quadrangle, Merrimack County, New Hampshire, scale 1:24,000, NH Geologic Survey open file report.

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.

Brooks, J.A. and Tinkham, D.J., 2002, Surficial Geology of the Laconia 7.5 minute Quadrangle, New Hampshire, NH Geologic Survey open file.

Brooks, J.A. and Emery, J.M., 1999, Exploration of Groundwater Resources in Bedrock Aquifers using Surface Geophysical Methods, Geol. Soc. Am., Abs. and Prog., v. 31, no. 3, p. 7.

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.

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.

Brooks, J.A. and Gust, D.A., 1991, Petrogenesis of Mesozoic Felsic Complexes in Southern Maine, Geol. Soc. Am., Abs. and Prog., 23(1);11.

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. 23(1);41.

Brooks, J.A., and Bothner, W.A., 1989, Late(?) Alleghanian Dextral Transpression and Terrane Accretion within Coastal New England and Western Gulf of Maine as Interpreted from Regional Aeromagnetic and Gravity Maps. AGU Eos Trans 70(15);462.

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.,23(1);41.

Brooks, J.A., and Bothner, W.A., 1989, Late(?) Alleghanian Dextral Transpression and Terrane Accretion within Coastal New England and Western Gulf of Maine as Interpreted from Regional Aeromagnetic and Gravity Maps. AGU Eos Trans 70(15);462.

Brooks, J.A., Gust, D.A., and Hussey, A.M., 1989, Geology and Geochemistry of the Mt. Agamenticus Complex, York, Maine. In Guidebook for Field Trips in Southern and West-Central Maine. NEIGC 81st Annual Meeting, pp 1-24.

Bothner, W.A., Brooks, J.A., and Eusden, J.D., 1988, Geology and Geophysics of the Messabesic, Merrimack, and Rye "Zones" in central coastal New England. Geol. Soc. Am: Programs with Abstracts 20(1); 9.

John Brooks's photo


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