This work aims at establishing an empirical correlation between Biochemical Oxygen Demand (BOD5) and Chemical Oxygen Demand (COD) of effluents from selected industries in the Kumasi Metropolis to facilitate speedy effluent quality assessment or optimal process control. Hourly effluent samples were collected for an eight-hour period three times per week for analysis of the principal parameters BOD5 and COD using the “Standard Methods for the Examination of Water and Wastewater”. Measured BOD5 and COD of the effluents were above the required discharged guideline of 50 mg/l and 250 mg/l respectively specified by the Environmental Protection Agency, Ghana. These levels of BOD5 and COD of the wastewaters could pose potential pollution to the waterbodies in which they are discharged since untreated. Results also indicate that the degree of common variation between the two variables COD and BOD5 is highly positive for the effluents from Ghana Brewery Limited (GBL), Guinness Ghana Limited GGL) and The Coca-Cola Bottling Company of
Kumasi the capital city of Ashanti Region of Ghana is located in the south-central part of the country, about 250 km (by road) northwest of Accra and with an approximate size of 254km2.