In this study, patients who are undergoing an elective colectomy will be investigated to quantify what amount of peritoneal contamination is tolerated despite rare abscess formation occurring. Subject will undergo peritoneal washings before and after colonic resection to measure the bacterial load spilled. This data would be beneficial to support that patients who are undergoing a NOTES procedure can and will be able to tolerate a definite quantity of bacterial contaminate. Furthermore, by observing the exact values of peritoneal contamination present there may be a certain level to which infectious complication are more likely to occur. This may provide some insight in NOTES as to when patients may benefit post-operatively from a prophylactic course of antibiotic therapy in response to their higher than tolerable intra-peritoneal bacterial load.