I remember in a former life how I was interested in opening a “backyard birthday” business. Part of the specs for this were to have a means of cleaning and sterilizing the utensils used. The cheapest and most prominent sterilant was bleach. This was put into the water in the level of I think 20 parts per million and the cleaned items were placed there for sterilization before rinse and reuse.
At shower time yesterday, I noted the odor of bleach in the water and decided that the city water folks weren’t satisfied with us simply being washed, they wanted to sterilize our skin as well.