The tomatoes developed by UF are listed here in this document: http://edis.ifas.ufl.edu/pdffiles/AG/AG21300.pdf. They grow great here, they just don't taste great. Some tasty hybrids do well here - just not growing in unamended soil in the ground.
Chloramine, on the other hand, is a combination of chlorine and ammonia. While chlorine dissipates and evaporates into the air relatively quickly, chloramine is more stable and will last longer in the water system. The goal is to provide increased protection from bacterial contamination.
Both chemicals are a result of the chloramineâs combination of ammonia and chlorine, a potentially deadly cocktail. Amazingly, itâs not even clear that chloramineâs benefits are worth these risks. Chloramine is 200 times less effective than chlorine in killing e-coli bacteria, rotaviruses, and polio.