City water and mycorrhizae

[chancethegardener]

What is the impact of the content of the city water on mycorrhizae? Here in Tampa, city doesn't use chlorine in its treatment process but they use chlordane instead. In other words, please correct me if I am not right but there is no point to let water sit before brewing compost tea or preparing a mycorrhizae solution because there is no chlorine to evaporate. As far as I know, chlordane is a compound that has been used as an insecticide and it doesn't evaporate.

My question is: How does chlordane and other content in the city water affect mycozrrhizae activity? What do you use to filter your garden water? Are there any nozzles that come with an attached coal filter?