56 



Tetra Tech, Inc. 



630 N. Rosaead Blvd., Pasadena, California 91107 



213-i*49-6'l'00 



Mr. N. Boratynskl 



Formed I 1955 Corporation 10 Life Scientists 



Marine systems, hydrodynamics, environmental systems, energy, physical 

 oceanography, marine pollution, solid wastes planning, research * 

 development 



Port ft Harbor studies for Lon«; Beach 



Mathematical model for prediction of dispersion of settling In 

 Bar«ed ocean disposal of wastes 



Bivlronmental Impact Assessment In ONPR-4 



Texas Instruments, Inc., Ecological Services 



P. 0. Box 5621, Attn I MS 9'»9, Dallas, Texas 75222 



21'*-238-3W*4 



Ray Toole 



Formed I I930 Corporation kj Life Scientists 



Environmental planning, studies, reporting 



Hudson River Ecological Survey 



Site Feasibility Study 



Oil Spill 



Thome Bcological Institute 



1U05 Broadway, Boulder, Colorado 80302 



303-41*3-7325 



Dr. W. David Zimmerman, Sxec. Vice-President 

 Formed I 195** Non-profit Organisation 



