I’ve been keeping fish off and on 40 years never checked chloramine because when I found out about it I had been keeping fish at least 5 years. So I figured they all be dead if I did have any dodged that bullet.
So I guess use chlorine but going start calling them ever few months I guess they could switch over at any time.
“Carnahan Aquifer. The City has ten wells that pull from this aquifer. As a final step, our water is chlorinated for disinfection purposes prior to sending it into the distribution system and into your home or business.”