Which of the following are considered by the USEPA to be hazardous waste? Provide rationale for your answer. If the waste is deemed hazardous, provide the appropriate List or USEPA Hazardous Waste Code. a) Acidic process effluent from a chemical manufacturing facility (pH 1.5) b) An organic oil with a flashpoint of 75C. c) Aquifer material subjected to a TCLP test. Test results revealed 0.1 mg/L of benzene and 0.5 mg/L of nitrobenzene. d) Waste sludge from the production of petroleum. e) Soil subjected to a TCLP test. Test results revealed 5 mg/L of cadmium and 10 mg/L of mercury. e) Mining overburden with a total arsenic content of 50 mg/kg.