Three bacterial strains that could degrade one or more of the test aromatic compounds (Tannic acid, Phenol and the three isomers samples of Toluenediamine) were isolated from waste water of the Washburn Tunnel Treatment Plant at Pasadena, Texas. The isolates were identified as Pseudomonas fluorescens, Bacillus megatherium and Staphylococcus epidermis. The ability of these bacterial strains to degrade the above named compounds was determined by spectrophotometry, liquid chromatograph and Total Organic Carbon Analysis.