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EMPLOYMENT HISTORY

 RELEVANT EXPERIENCE

As manager of Land Tech Remedial, Inc.'s Farmingdale, New York office since December, 1993, and as Director of Applied Sciences with Handex since their acquisition of Land Tech Remedial, Inc. in September, 1998, Mr. Douthit has been directly involved in all aspects of petrochemical release management, including assessment, remediation system feasibility testing and implementation, regulatory negotiation and closure.  For In Aqua Veritas, LLC, Mr. Douthit is primarily responsible for management and implementation of the technical aspects of the company’s environmental fate and transport modeling, risk-based corrective action and natural attenuation services.  To that end, recent projects include the regulatory advocacy and application of risk-based corrective action (RBCA) in several states, refinement of air sparging techniques, risk assessment utilizing computer-based dissolved-phase contaminant fate, transport and 3-D visualization modeling, co-producing guidance documents on field analytical methods for the American Petroleum Institute (API), and protocol development for field documentation of in-situ, intrinsic bioremediation at petrochemical release sites for a major oil company.  Additional activities include the development, calibration and implementation of proprietary computer software for the application of Domenico (1987), Baetsle (1969) and Johnson and Ettinger (1991) contaminant fate-and-transport equations.  A primary focus of these applications is the better understanding and quantification of indoor air exposure scenarios.  Mr. Douthit has served as a member of the New York State Department of Environmental Conservation (NYSDEC) Risk-Based Corrective Action Advisory Group and as a member of the American Society for Testing and Materials (ASTM) Task Group on Remediation by Natural Attenuation (RNA).  Mr. Douthit is a co-author of the ASTM Standard Guide for Remediation by Natural Attenuation at Petroleum Release Sites (E-1943).

COMPUTER MODELING EXPERIENCE (Partial Listing)

PUBLICATIONS

Douthit, T.L., Kramer, W.H. and Marr, T.J. (2002) The Importance of Acid Hydrolysis of MTBE to TBA in Properly Handled Groundwater Samples.  Proceedings, NGWA Conference, Petroleum Hydrocarbons and Organic Chemicals in Groundwater:  Prevention, Assessment and Remediation, Atlanta, Georgia, Nov. 6 – Nov. 8, 2002.

Douthit, T.L., Novick, N.J., Payne, R.E., Malander, M.W. and Taylor, M.B. (1996) Evaluation of Intrinsic Bioremediation in Support of Risk-Based Corrective Action:  Data from a New York Remediation by Natural Attenuation Demonstration Site. Proceedings, NGWA Conference, Petroleum Hydrocarbons and Organic Chemicals in Groundwater:  Prevention, Detection and Restoration, Houston, Texas, Nov. 13 – Nov. 15, 1996.

Douthit, T.L., Meyers, W.J. and Hanson, G.N. (1993) Non-monotonic variation of seawater ⁸⁷Sr/⁸⁶Sr across the Ivorian/Chadian boundary (Mississippian, Osagean):  Evidence from marine cements within the Irish Waulsortian Limestone.  Journal of Sedimentary Petrology, Vol. 63, No. 3, p. 139 -149.

Douthit, T.L., Meyers, W.J. and Hanson, G.N. (1990) Structure in the secular variation of seawater ⁸⁷Sr/⁸⁶Sr for the Ivorian/Chadian (Osagean, lower Carboniferous) (Abs.).  13th International Sedimentological Congress, Nottingham, England.  Abstracts of Papers, p. 139.

Marr, T.J., Sherding, W. and Douthit, T.L. (2003) The Relevance of MTBE Acid Hydrolysis to TBA Under Standard and Heated-Purge Analytical Methods.  Proceedings, NGWA Conference, Petroleum Hydrocarbons and Organic Chemicals in Groundwater:  Prevention, Assessment and Remediation, Costa Mesa, California, August 20 – 22, 2003. .

Kramer, W.H. and Douthit, T.L. (2000)  Water Soluble Phase Oxygenates in Gasoline From Five New Jersey Service Stations. Proceedings, NGWA Conference, Petroleum Hydrocarbons and Organic Chemicals in Groundwater:  Prevention, Detection and Restoration, Anaheim, California, November 15 – November 17, 2000.

Clark, T.R., Staudt, W.J., and Douthit, T.L. (1998) Selecting Field Analytical Methods:  A Decision Tree Approach.  American Petroleum Institute Publication No. 4670, API Publishing Services, Washington, DC.

Payne, R.E., Novick, N.J., Douthit, T.L., Brown, J.A., and Anderson, D.N. (1995) An evaluation of field methods for measuring indicators of intrinsic bioremediation of petroleum hydrocarbons in groundwater.  Proceedings, NGWA Conference, Petroleum Hydrocarbons and Organic Chemicals in Groundwater:  Prevention, Detection and Restoration, Houston, Texas, November 28 - December 1, 1995.

Novick, N.J., Payne, R.E., and Douthit, T.L. (1995)  A practical approach for evaluating intrinsic bioremedation of petroleum hydrocarbons in groundwater.  Proceedings, NGWA Conference, Petroleum Hydrocarbons and Organic Chemicals in Groundwater:  Prevention, Detection and Restoration, Houston, Texas, November 28 - December 1, 1995.

Novick, N.J., Payne, R.E., and Douthit, T.L. (1995)  Evaluating intrinsic bioremediation of petroleum hydrocarbons at service station sites.  Annual American Chemical Society, Industrial and Engineering Chemistry Session, Special Symposium on Emerging Technologies in Hazardous Waste Management, Atlanta, Georgia, September 17 - September 20, 1995.

Schoonen, M.A.A. and Douthit, T.L. (1992) Experimental determination of the solubility product of dolomite (abs.).  Goldschmidt Conference, May 8 - 10, 1992.