. Bulletin. Science. SEDIMENT AND OUTFALL RELATIONSHIPS 23. - ° County Sanitation Districts ' of Orange County - ° ° ° Fig. 1. Station location map for sediment samples, San Pedro Shelf, California 1985-1993. (water diversion projects, dam and reservoir construction, irrigation practices, mu- nicipal and industrial wastewater discharge, ocean dumping, dredge disposal, drill- ing fluids and cuttings discharge) which directly influence sediment size, com- position, distribution and quality on the continental shelf (Eisma 1973, 1990; Dyer 1984; McLaren and Little 1987; Halim 199
. Bulletin. Science. SEDIMENT AND OUTFALL RELATIONSHIPS 23. - ° County Sanitation Districts ' of Orange County - ° ° ° Fig. 1. Station location map for sediment samples, San Pedro Shelf, California 1985-1993. (water diversion projects, dam and reservoir construction, irrigation practices, mu- nicipal and industrial wastewater discharge, ocean dumping, dredge disposal, drill- ing fluids and cuttings discharge) which directly influence sediment size, com- position, distribution and quality on the continental shelf (Eisma 1973, 1990; Dyer 1984; McLaren and Little 1987; Halim 1991; Anderson et al. 1993; Abu-Hilal 1994; Bookman et al. 1994). Further, the relationship between sediment particle size, in particular fine size fractions, and certain particulate contaminants is well documented (Venkatesan et al. 1980; Finney and Huh 1989; Krumgalz 1989; Szefer et al. 1995). Of particular interest is the role of ocean outfalls in potentially altering local sedimentary properties. The Southern California Bight (SCB) presently accommodates four major ocean outfalls (City of San Diego, Orange County, Los Angeles County, City of Los Angeles). These outfalls annually discharge X 10121 of treated wastewater containing X 104 t of suspended solids (Anderson et al. 1993). Since a wide variety of organic and inorganic contaminants are associated with the suspended solids deposited in the ocean, contaminant loads are the subject of considerable study in the SCB (Anderson et al. 1993). Any significant change in sediment properties from natural processes and/or anthropogenic activities, may affect their affinity to accumulate particulate contaminants, influencing their composition and quality, and, ultimately their interaction with community structure and function of soft-bottom macrobenthos. Hamilton (1993) makes a strong case that the log- ical and essential information which usually accompanies the description and identification of biota should also be provi
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