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IN THE 301(H), 403(c), 404 AND OCEAN DUMPING PROGRAMS- JHESE 
PROCEDURES COULD ALSO BE USED IN MONITORING PROGRAMS- EMPHASIS WILL BE 
ON: THE DEVELOPMENT OF RAPID, COST-EFFECTIVE SURVEY METHODS FOR 
DETERMINING BENTHIC ECOSYSTEM CONDITIONS NEAR MUNICIPAL OUTFALLS; 
EVALUATING THE INFAUNAL INDEX AS A MEASURE OF BIOLOGICAL RESPONSE TO 
SEDIMENT POLLUTION; AND DEVELOPMENT OF A BENTHIC MICROCOSM FOR USE IN 
EVALUATING THE IMPACT OF CONTAMINATED SEDIMENTS- 
C. Mixinc Zone DEFINITION: NON-BOUYANT PLUMES 
THE OBJECTIVE OF THIS RESEARCH IS TO DEVELOP/REVISE MIXING-ZONE 
CALCULATION METHODS FOR INDUSTRIAL DISCHARGES- EMPHASIS WILL BE GIVEN 
TO THOSE DISCHARGES CONTAINING FLUIDS, EMULSIONS, AND SUSPENSIONS 
HEAVIER THAN MARINE WATER, OR THOSE WHICH IN GENERAL BEHAVE DIFFERENTLY 
THAN THE MUNICIPAL WASTES FOR WHICH MATHEMATICAL MODELS AND LIMITED 
VERIFICATION DATA ARE AVAILABLE- LABORATORY AND FIELD VERIFICATION 
WILL BE CONDUCTED TO SUBSTANTIATE THE LEVEL OF CONFIDENCE IN PREDICTING 
WATER QUALITY CHARACTERISTICS FOR POLLUTANTS REGULATED BY NUMERICAL 
CRITERIA* THIS RESEARCH IS EXPECTED TO BE COMPLETED IN FY 82. 
CoMPLETION OF THIS RESEARCH WILL MOST LIKELY RESULT IN A REVISION OF 
THE MIXING ZONE DEFINITION UNDER 403(c), AND MAY AFFECT THE 
REQUIREMENTS OF THE 404 AND OCEAN DUMPING PROGRAMS- 
CONTAMINATED SEDIMENT RESEARCH 
DREDGED MATERIAL WILL PROVIDE INFORMATION AND METHODOLOGIES TO BE 
USED IN THE ESTABLISHMENT, AND REVISION, OF CRITERIA AND STANDARDS FOR 
BOTH THE SECTION 404 PERMIT PROGRAM UNDER THE CLEAN WATER ACT AND THE 
OCEAN DUMPING PERMIT PROGRAM UNDER THE MARINE PROTECTION, RESEARCH AND 
SANCTUARIES ACT- THIS RESEARCH WILL BE COORDINATED WITH THE CORPS OF 
