Most of us here are just as concerned with embracing what is optimal, as in avoiding what is potentially harmful. There are plenty of anecdotal cases of people living in caner belt communities where the water is heavily chlorinated, as well as contaminated with a myriad of other kinds of industrial and agricultural waste....... while at the same time there is a much lower incidence of such conditions in places such as the Netherlands where the water is free of such contamination.
In my life I am exposed to 100 fold more harmful substances than in most tap water on a regular basis, but I also realize that being made up of mostly water and drinking nearly a gallon a day, that its important that it is pure.
One must also consider that much of the produce and even the meat we consume whither it be from a family farm or a factory farm is often produced with fluoridated, chlorinated and who knows what else in the water. These things build up in the soil as well as the bodies of the animals and plants we consume. At the same time it is already proven that trace elements and vital minerals are being depleted, so there is reason to believe that there is a great ecological imbalance upon many fronts, though its been so gradual and is confounded by so many other factors....
I liken what is occurring in many parts of the world with subtle contamination.... to the tadpole raised in chlorinated, roundup runoff, fluoride laced, BPA fish bowl water, that has grown into the retarded frog which calmly allows itself to be boiled alive.
Industry science is not engaged in determining what is optimal for the well being of the individual human so these imbalances go largely undocumented.... the writing is on the wall when it comes to the harm being done... and anyone with an IQ higher than a fluoridated frog should know that drinking chlorine laced water is not an optimal health practice.
Thinking about frogs soaking in water reminds me that we also bath in the stuff...... chlorine and fluoride does indeed soak in through the skin... I use shower filters, and am in the process of setting up an oak barrel rain water collection tank to do some cold soaking in....I wire up swimming pools for a living and the companies around here have been doing a mass exodus from using traditional chlorine treatments....and are switching to salt systems, which generate pure chlorine from salt, in much lower amounts than in traditional chlorine treatments, while burning out many of the chemical impurities which are actually more harmful than the chlorine. I can vouch that the water in salt treated pools has no chlorine smell nor does it bleach the skin or burn the eyes. There are even more expensive colloidal copper generators for pools, but because of the cost we don't install them.
https://en.wikipedia.org/wiki/Salt_water_chlorination