EQ3/EQ6 water speciation equilibria



 Dear Netters,
              I have recently been given a computer package (EQ3 and EQ6)
 to calculate species equilibria in water. I only recieved the tape
 and know nothing of its origins. Also I have no documentation and the programs
 on the tape are not compiled and I don't know how to go about
 doing this correctly. Has anybody heard of these packages?
                      Andrea G.