David Greenwood
Technical and Marketing
Executive Vice President
Tel 703-317-6217
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Anthony Fitzpatrick, P.E.
Construction Management Services
Tel 412-375-3219
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Terry McAllister
Contractual Issues
Tel 703-483-0029
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Bob Henchbarger
Energy Management Services
Service Area Contact
Tel 703-317-6242
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Len Johnson
Environmental Services
Service Area Contact
Tel 412-375-3005
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Colleen Ditmars
IT/GIT Services
Service Area Contact
Tel 571-357-6024
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