David LaFrance, CEO of the American Water Works Association, eloquently addresses the importance of healthy forests to our water supply in his OpenChannel column in the current (January 2015) issue of the J. AWWA.
Even though groundwater is not specifically mentioned, I know that David and AWWA know how important forests are in providing groundwater recharge, and that after all, about 30-40% of the USA's perennial streamflow is derived from groundwater (baseflow).
So thanks to David and AWWA for highlighting this important issue, and thanks to G. Tracy Mehan III for sending this my way. And while you're in 'forest mode' check out the September 2014 J. AWWA article, 'Protecting Forested Watersheds Is Smart Economics for Water Utilities', by Todd Gartner, G. Tracy Mehan III, James Mulligan, Alan Roberson, Peter Stangel, and Yiyuan Quin.
“The clearest way into the Universe is through a forest wilderness.” ― John Muir