20150503MWHmarathonLocal04 May 3, 2015 • 2000 × 1437 • 20150503MWHmarathonLocal04 A runner cools off at a water station on Carson Street on the South Side. (Michael Henninger/Post-Gazette) A runner cools off at a water station on Carson Street on the South Side. (Michael Henninger/Post-Gazette)