BIOREMEDIATION PROJECTS Puerto Rico National Guard (PRANG) Fort Allen, Juana Díaz, P.R. Puerto Rico National Guard Mayaguez, P.R. Caribbean Petroleum Gulf Peñuelas, P.R. US Department of the Navy Roosevelt Roads, Ceiba, P.R. US Department of the Navy Roosevelt Roads, Ceiba, P.R. US Department of the Navy Roosevelt Roads, Ceiba, P.R. US Department of the Navy Roosevelt Roads, Ceiba, P.R. US Department of the Navy Vieques, P.R. US Department of the Navy Roosevelt Roads, Ceiba, P.R. US Department of the Army Fort Buchannan Guaynabo, P.R. Goverment Development Bank of Puerto Rico Santurce, P.R. Puerto Rico Port Authority Cataño, P.R. Cooperativa de Camioneros Transporte de Carga Maunabo, P.R. Right Way Environmental Puerto Nuevo, P.R. Reliable Mechanical, Inc. Roosevelt Roads, Ceiba, P.R. Almacenes Riviera/Ysiem Corp. Carolina, P.R. Eli Lilly Industries Carolina, P.R. Pedro Panzardi & Associates Toa Alta, P.R. Environmental Consulting Group Caguas, P.R. Cooperativa de Camioneros Bayamón, P.R. Caribco International/Puerto Rico Ports Authority Aguadilla, P.R. Puerto Rico Ports Authority Aguadilla, P.R. Prental, Inc. Carolina, P.R. Avis Car Rental Carolina, P.R. ACM & LBP ABATEMENT PROJECTS Top Construction Corporation Dorado, P.R. Citigroup, N.A. Cupey, P.R. Puerto Rico Public Building Authority Puerto Rico Former W.R. Grace, Guánica, P.R. Former Bilchem Pharmaceutical Facility Ponce, P.R. VAMC (Veterans Hospital) Río Piedras, P.R. Puerto Rico Department of Education Puerto Rico LMD Construction A Maintenance Guaynabo, P.R. Picerne Development Mayaguez P.R. EPA, REGION 2 OVERSIGHT PROJECTS Puerto Rico Land Authority Manatí, P.R. Puerto Rico Land Authority Arecibo, P.R. Puerto Rico Land Authority Arecibo, P.R. RISK ASSESSMENT PROJECTS Puerto Rico Housing Finance Authority Canóvanas, P.R. Puerto Rico Telephone (PRT) Moca, P.R. Puerto Rico Telephone (PRT) Sabana Grande, P.R. Commonwealth Oil Refining Company (CORCO) Peñuelas, P.R. Commonwealth Oil Refining Company (CORCO) Peñuelas, P.R. UNDERGROUND INJECTION CONTROL PROJECTS Kent Meters, Inc. Isabela, P.R. Municipality of Vega Baja Vega Baja, P.R. Calvary Baptist Tabernacle & Christian Ministries Carolina, P.R. Puerto Rico Telephone (PRT) Patillas, P.R. Right Way Environmental Contractors, Inc. / US Department of the Navy Vieques, P.R. University of Puerto Rico (UPR) Isabela, P.R.

PHASE I, PHASE II AND SITE ASSESSMENT Puerto Rico Electric Power Authority (PREPA) Guayanilla, P.R. Puerto Rico Electric Power Authority (PREPA) Salinas, P.R. Cooperativa de Camioneros de PR Dorado, P.R. Puerto Rico Aqueduct and Sewer Authority Fajardo, P.R. Municipality of Dorado Dorado, P.R. Red Service Station Caguas, P.R. Puerto Rico Electric Power Authority (PREPA) Santurce, P.R. Puerto Rico Aqueduct and Sewer Authority Puerto Rico U. S. Army Reserve Command Guaynabo, P.R. Puerto Rico Aqueduct and Sewer Authority- Puerto Nuevo, P.R. U. S. Army South Guaynabo, P.R. Puerto Rico Electric Power Authority (PREPA)- Humacao, P.R. U. S. Army Reserve Command San Juan, P.R. CERES Caribe, Inc. Ponce, P.R. (USCOE Project). U. S. Army Reserve Command San Juan (Lavergne), Bayamón, P.R. Puerto Rico Telephone Company (PRTC) Guaynabo, P.R. Puerto Rico Telephone Company (PRTC) Bayamón, P.R. Estación Experimental Agrícola Gurabo, P.R. EH&S Consultants Bayamón Municipality Site, P.R. Right Way Environmental Contractors, Inc. Aguadilla, P.R. University of Puerto Rico, Mayaguez Campus Mayaguez, P.R. Puerto Rico Electric Power Authority (PREPA) Ponce, P.R. Puerto Rico National Park Company Vieques, P.R. Puerto Rico Electric Power Authority (PREPA) Salinas, P.R. 65th U.S. Army Regional Support Command Guaynabo, P.R. Right Way Environmental Contractors, Inc. Santurce, P.R. Cape Environmental Management, Inc. Sabana Seca, Puerto Rico Martínez Odell & Calabria & Municipality of Carolina, P.R. Carolina, P.R. Puerto Rico Government Development Bank of Puerto Rico Santurce, P.R. Environmental Power Santa Isabel, P.R. Toyota Motor Sales, USA La Muda and Río Piedras, P.R. Puerto Rico Telephone (PRT) Mayaguez, P.R. Citibank Group P.R. Hato Rey, P.R. Commonwealth Oil Refining Companies (CORCO) Peñuelas, P.R. Citigroup, N.A. Cupey, P.R. CH2MHILL Carolina, P.R. Dr. Carlos Muratti Ponce, P.R. Pace Analytical del Caribe San Juan Waterfront Right Way Environmental, Inc Ceiba, P.R. Constructora Santiago II, Corp. San Juan, P.R. Pirate Cove Marina St. Thomas, USVI Dolores Service Station Canovanas, P.R. SPECIALTIES PROJECTS U. S. Army Reserve Command Puerto Rico U. S. Army Reserve Command Juana Díaz, P.R. U. S. Army Reserve Command Roosevelt Roads, Ceiba, P.R. Puerto Rico National Guard (PRANG Puerto Rico Geocom, Inc. Río Piedras, P.R. University of Puerto Rico, Mayaguez Campus Mayaguez , P.R. Kiewit-Kenny-Zachry (KKZ) Río Piedras, P.R. Science Applications International Corporation Puerto Rico Puerto Rico Air National Guard (PRANG) Puerto Rico MWH AMERICAS, INC. Aguadilla, P.R. Shaw Environmental, Inc. Ceiba, Puerto Rico Right Way Environmental Contractors, Inc. / Cape Environmental Ceiba, P.R. V.A. Medical Center Rio Piedras, P.R. Constructora Ingenio Dorado, P.R. Right Way Environmental, Inc. Carolina, P.R. AMEC Earth & Environmental, Inc. San Juan, P.R. Camp Dresser & Mc Kee, Inc. (CDM Federal) Puerto Rico

IN-SITU BIOREMEDIATION La Finquita Service Station Las Piedras, P.R. U. S. Army Reserve Command Juana Diaz, P.R. U. S. Army Reserve Command Guaynabo, P.R. Elli Lilly Industries Carolina, P.R. ENSR Environmental Condado, P.R. Kent Meters, Inc Isabela, P.R. Municipality of Dorado Dorado, P.R. University of Puerto Rico Mayaguez, P.R. Puerto Rico Industrial Development Co. (PRIDCO) Trujillo Alto, P.R. First Environment Hato Rey, P.R. Puerto Rico Telephone Mayaguez, P.R. Puerto Rico Public Building Authority Hato Rey, P.R. Earth Tech, Inc., Davis & Geck Manatí, P.R. Marina del Mar Shipyard Humacao, P.R. AMA / Anibal Díaz Construction Rio Piedras, P.R. Puerto Rico Electric Power Authority (PREPA) Ponce, P.R. Puerto Rico Industrial Development Co. Trujillo Alto, P.R. Puerto Rico Industrial Development Co. Barranquitas, P.R. Puerto Rico Electric Power Authority (PREPA) Vega Baja, P.R. Banco Popular de Puerto Rico Cupey, P.R. Puerto Rico Industrial Development Co. Humacao, P.R. Navarro Service Station Gurabo, P.R. REMEDIAL ACTION PROJECTS Earth Tech, Inc. Canóvanas, P.R. Puerto Rico Aqueduct & Sewer Authority Dorado, P.R. Constructora Hartmann San Juan, P.R. McLaren Hart/Entrix Corporation- Canóvanas, P.R. Puerto Rico Air National Guard (PRANG)- Salinas, P.R. Puerto Rico National Guard (PRANG) Puerto Rico CMA Architects & Engineers LLP Aibonito, P.R. Puerto Rico Land Authority Ponce, P.R. Puerto Rico Land Authority Palo Alto, Manatí, P.R. University of Puerto Rico, Mayaguez Campus Mayaguez, P.R. U.S. Department of the Navy Crown Mountain, St. Thomas, U.S. Virgin Islands. Puerto Rico Housing Finance Authority Canovanas, P.R. San Patricio MRI & CT Center Guaynabo, P.R. Right Way Environmental, Inc. Ft. Buchanan, P.R. WSP Environmental Strategies Arecibo, P.R. Mc Neil Healthcare, LLC Las Piedras, P.R. US ARMY FT. Buchanan Guaynabo, P.R. Government Development Bank of Puerto Rico Santurce, P.R. Dorado Beach Resort Dorado, P.R. Toyota de Puerto Rico Guaynabo, P.R. MWH Americas, Inc. St. Croix, U.S. Virgin Islands. Puerto Rico Infrastructure Finance Authority (AFI) Trujillo Alto, P.R. UNDERGROUND STORAGE TANKS AND ABOVE STORAGE TANKS Puerto Rico Ports Authority Cataño, P.R. Puerto Rico Telephone Company (PRTC) Caguas, P.R. U. S. Department of the Navy Ceiba, P.R. Las Piedras Construction and Puerto Rico Ports Authority Carolina, P.R. Puerto Rico Ports Authority Arecibo, P.R. U. S. Army Corps of Engineers Aguadilla, P.R. U. S. Department of the Navy Aguada and Isabela, P.R. Puerto Rico Public Building Authority/PR Government Development Bank Hato Rey, P.R. Puerto Rico Industrial Development Corporation Puerto Rico Puerto Rico Government Development Bank Cataño, P.R. Puerto Rico Department of Transportation Puerto Rico U. S. Army Reserve Command Aguadilla, P.R. Municipality of Vega Baja Vega Baja, P.R. U. S. Department of the Navy Roosevelt Roads, Ceiba, P.R. U. S. Department of the Navy/Caribco International Puerto Rico IT Corporation/U. S. Army Corps of Engineers Vieques, P.R. U.S. Department of the Army Guaynabo, P.R. U. S. Department of the Navy Ceiba, P.R. Avis Car Rental Carolina, P.R. Prental, Inc. Carolina, P.R. Puerto Rico Government Development Bank Cataño, P.R. Right Way Environmental, Inc. San Juan, P.R.