------------------------------------------------------------------------------
C45C TOXIC CONTAMINANT POC FRACTIONAL DISTRIBUTIONS IN WATER COLUMN
* 1 LINE OF DATA REQUIRED EVEN IT ISTRAN(5) IS 0. DATA USED WHEN
* ISTOC(NT)=1 OR 2
*
* NTOXN: TOXIC CONTAMINANT NUMBER ID. NSEDC+NSEDN 1 LINE OF DATA
* FOR EACH TOXIC CONTAMINANT (DEFAULT = 2)
* FPOCSED1-NSED: FRACTION OF OC ASSOCIATED WITH SED CLASSES 1,NSED
* FPOCSND1-NSND: FRACTION OF OC ASSOCIATED WITH SND CLASSES 1,NSND
*
C45C NTOXN FPOCSED1 FPOCSED2 FPOCSED3 FPOCSED4 FPOCSED5 FPOCSED6 FPOCSED7 FPOCSED8 GRPID ! ID (8 SEDS + 0 SNDS)