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.
convert and stabilize the chlorine in the form of chloramine. Chlorine in chloramine can revert back to free chlorine and exert its oxidative activity. The process, however, is slow and only a small fraction of chlorine is released at a given time. In effect, chloramine functions like a slow release medication in the water disinfection process. Since chloramine is less reactive than free chlorine, it will not form