The ultimate goal of any community open space plan is to protect and preserve the public health and safety. Drinking-water quality, air quality, flooding and physical health are public health and safety issues. Proper local use of open space resources has a direct and positive effect on all of these. Naturally planted areas help filter runoff for water protection and reduce air contaminants. They absorb rainfall and high river waters to prevent and reduce flood damage. Good open space availability encourages residents to get out and be active, promoting healthy lifestyles.