EXHIBIT 2.1 AGREEMENT AND PLAN OF MERGERMerger Agreement • January 31st, 2003 • Envirogen Inc • Hazardous waste management • Delaware
EXHIBIT 2.2 VOTING AGREEMENT VOTING AGREEMENT (this "Agreement"), dated as of January 30, 2003, among Shaw Environmental & Infrastructure, Inc., a Louisiana corporation ("Parent"), Envirogen, Inc., a Delaware corporation (the "Company"), and the...Voting Agreement • January 31st, 2003 • Envirogen Inc • Hazardous waste management • Delaware
