Consulting Geologists, P.C.
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G-L Engineering, P.C.

8 Brunswick Road
Troy, New York 12180
Phone: 518-270-5920
Fax: 518-270-5922


Jeffrey T. Lang, P.G., Vice President and Principal Hydrogeologist

Griggs-Lang Consulting Geologists, P.C.

Jeff Lang is Vice President and Principal Hydrogeologist of Griggs-Lang Consulting Geologists, P.C. Jeff and Paul Griggs formed the company in 2000 for the purpose of providing high quality consulting services to the mining and construction materials industry in the northeast United States.

Jeff earned a Bachelor of Science degree in Geology in 1985 and a Master of Science degree in Geology with an emphasis in Hydrogeology in 1989 from Rensselaer Polytechnic Institute. His education focused on hydrogeology, engineering geology and geomechanics.

He has worked in the mining industry since 1984 and has been a geological consultant since 1985. While in school Jeff worked as a truck dispatcher for Valente Gravel, Inc. in Wynantskill, New York. He was employed by George L. Marshall Engineering Geologists from 1985 through 1995 and by Spectra Environmental Group, Inc. from 1995 through 2000. His responsibilities at both companies included most aspects of locating, permitting and operating construction materials mines and construction sites, including regional exploration, alternative analysis and assessment, field mapping, subsurface investigation, resource evaluation, feasibility studies, comprehensive environmental permitting under SEQRA and other applicable rules and regulations, hydrogeologic investigations of mines and industrial, commercial and residential sites, troubleshooting and compliance studies.

Jeff's duties as Principal Hydrogeologist include hydrogeologic consultation to the mining, construction and solid waste industries. Mr. Lang manages mining hydrogeologic investigations and the environmental permitting of mining projects. He is involved with comprehensive mine planning, hydrologic planning and overall mine design.

His fields of expertise include mining geology and hydrology, mine permitting, hydrogeologic investigations, impact analysis and assessment, storm water control plans, sediment and erosion control plans, aggregate quality control, reserves exploration and evaluation and noise impact analysis.

Jeff is a licensed professional geologist in the Commonwealth of Pennsylvania (New York State is in the process of implementing licensure for geologists) and has been active in professional and industry associations since 1985, including the Empire State Concrete and Aggregate Producers Association, New York Construction Materials Association, the Hudson-Mohawk Professional Geologists Association, the New York Council of Professional Geologists and the International Mine Water Association (IMWA).

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