This thread is old but the truth is to anyone these days is that chloramines may be safe for plants at low levels but what about the soil/growing medium and its micro herd of benificial bacteria and fungi? Well it does harm it, maybe not wipe it out but definitely has a negative impact. True organic growers beware, protect your soil dwelling herd!
No you didn't! So I did, someones gotta correct and clarify old outdated info to help peeps out who may have only gotten old, outdated google search results and RIU posts for their specific question/problem.