How to ward off this woman at my place of work? Not Interested...?

[Jacob]

I see you already hate this lady with every thing you have, but just try to commmunicate your lack of feelings for her in a polite way without offending her. It might not be easy but all this would be in an effort to avoid drama. Remember a rejected woman can cause chaos especially if she is so much into you. Matters such as these require a lot of tact and wisdom in handling - remember that she is a work colleague as much as you find her repulsive. At the end of all this she also needs to be treated as a decent human being. It may not be easy but find a nice way of solving this issue. Try to minimise the hate. We all have our positive sides however repulsive we may appear to someone.