Problem 1: You receive a sample to be tested for BOD. You are familiar with the source water enough to know that the reaction rate coefficient is 0.25 per day and that you can confidently add 12ml of sample and dilution water to fill a 300mlBOD bottle and obtain reasonable results. The measured initial DO in the blank is 8.5mg/1. Day five comes and goes and you fail to measure the BOD5. On day 7 , you discover your error and determine that the remaining DO in your test BOD vial is 3.0mg/1, while the DO concentration in your blank is measured to me8.0mg/1. Using the existing rate and DO data can you estimate: a) The ultimate BOD b) The BOD5 and the corresponding remaining DO that would have been measured on day 5 and c) If you were responsible for reporting this data to a State agency would you consider your results valid and reportable