Biological survey of Pere Marquette Lake, 1975
Water Quality Division, Dept. of Natural Resources, State of Michigan, 1978 - Nature - 35 pages
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analyses of composite appear in Table benthic benthic animals benthos biological survey cervix chaetae chironomids Chironomus Chlorinated hydrocarbons CMOZOOLOOO composite samples appear Computed flow rate copper discharged to Pere Dow Chemical Company dredge effluent Ephemeroptera eutrophic flow rate mgd former Ludington WWTP found at station Gastropoda Harbison Harbison-Walker discharge heavily polluted heavy metals hydrocarbons and phthalates James Grant July l-2 Lake Michigan lbs/year littoral zone locations on Pere Ludington Wastewater Treatment Ludington WWTP discharge macroinvertebrate macroinvertebrate community Magnesium hydroxide Mean number moderately polluted multisetosls nickel O O CM oligochaetes orthophosphate-P Total phosphorus-P Pere Marquette Lake Pere Marquette River Petite Ponar phosphorus loading phthalates profundal zone Quantitative analyses results of chemical river mouth Sand Sand Sand Scottville Semi-annual lagoon discharges square miles stations l4 survey was conducted total chromium Total number Treatment Plant discharge U.S. EPA ug/kg vicinity wastewater survey Wastewater Treatment Plant water quality conditions Water Quality Division zinc