Errors in control file

Using w2_generic on Linuz as my executable, I am trying to create a simple simulation of flows only (no constituents), but am running into errors in my control file, specifically, the follwing error kicks out at me:

At line 633 of file input.f90
Fortran runtime error: Bad value during floating point read

Which I am seeing is related to the readin in of initial concentration for water quality constituents. Now, the file that I have been basing this on is one that was generated from the w2_control.exe but for a variety of reasons I could not get it to function within that environment, so I am trying to do it manually. Anyhow, although I have 0 constituents enabled (see below for excerpt from w2_con.npt - note that this interface does not seem to show monotype properly, so the alignment in the .npt file sample looks erronseous, but is correct):

CONSTITU NGC NSS NAL NEP NBOD NMC NZP
0 0 0 0 0 0 0

Anyhow, it seems that although I have zero constituents enabled, the simulation is still requiring parameters for a whole host of constituents be listed in the npt file (although with values = 0.0).

Any insight would be most appreciated.

r.b.