Guy, there is certainly regional water scarcity. This is apparent is coastal communities and island nations without a regenerative water supply.  Droughts, which are typically cyclical cause regional water scarcity as well. There is also water scarcity due to the effects of regional water contamination. Yes, adding chlorine to a centralized waste collection system prior to discharge alters surface water ecosystems and should not be done. UV is a better choice for these applications.

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Guy, there is certainly regional water scarcity. This is apparent is coastal communities and island nations without a regenerative water supply.  Droughts, which are typically cyclical cause regional water scarcity as well. There is also water scarcity due to the effects of regional water contamination. Yes, adding chlorine to a centralized waste collection system prior to discharge alters surface water ecosystems and should not be done. UV is a better choice for these applications.