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- --' <{ If) o "'- o "" "'- If) I f- "'- o UJ <!l <{ "'- ~ f- >= UJ I f- Z o Z o >= u a:: f- If) UJ "" UJ I f- o f- .i If) '!l f- UJ UJ I If) If) I f- Z o o UJ z 4' f- Z o u <{ f- <{ o "'- o UJ 0: ::::> If) g u If) Ci "" o UJ If) ::::> . SOUTH FLORIDA WATER MANGEMENT DISTRICT GENERAL ENGINEERING SERVICES studied. A sophisticated computer code (~IODAC) was used to estimate flow parameters such that the head distribution matched observation very well. t\Iodeling reports for SD-24 and FT-ll were submitted. Building 505 site modeling was performed initially three years ago and was transferred to Greensville office this year due to tight schedule. Clients were satisfied with the modeling results. Principal Investigator, Hillside 137 stability and drainage design for Los Alamos National Lab, 823830, Los Alamos National Laboratory, Los Alamos, NM, 01/2001- 12/2003. (I) Evaluation of major culverts after forest fire. (2) Investigation and design of the storm \vater drainage system at 137 Hill- slope to protect the slope from further erosion. Hydraulic calculations and hydraulic design were accomplished and reports were drafted and submitted to L\NL. The structure design was done by Stone and \'\. ebs ter. Principal Modeler, Tinker Air Force Base Well Head Protection Study, Tinker Air Force Base, Oklahoma City, 02/2003 - 11/2003. Use a 3-D groundwater model to delineate \vellhead protection areas in a 3-D perspecti\'e. The model was well calibrated and the results were far superior to the pre\'ious ones which \verc based on EP;\'s early version ofWI-IPA model (two-dimensions) and overestimated the area dramaticall)" Principal modeler, Shaw Air Force Base - Fate and Transport Modeling, Department of Defense, Sumter, SC, 01/2001- 07/2002. A 3-D grounchvater and transport model was developed for the Shaw Air Force Base to e\'aluate different remedial action alternatives for the CMS (corrective measure study). The flow model and the transport models were "very \vell" calibrated based on the investigation information we had at that time. Doubts \vere raised as to the actual velocity of the groundwater that allowed TCE to migrate o\'cr 6000 ft over the past 45 years. The aCluifer test data did not support this kind of velocity. Later study on isotopes age revealed that there very likely exists a SHAW ENVIRONMENTAL, INC. 06C122006T preferential patlnvay in which groundwater was moving at higher velocity than the surrounding areas. Draft modeling reports were accomplished and presentations were made to the clients and the agencies. SONG KAI YAN, PH.D., P.E. 4