Bob Upson, an engineer with NFSA, is coming into town to teach the Water Supplies class at the Metropolitan Fire Marshals September meeting Sept. 13, 2017 at 9:00. Bob is the Manager of Engineering Services for the National Fire Sprinkler Association. This presentation summarizes some of the factors that should be considered for assessing adjustments as well as potential negative consequences of adjusting water supply data too aggressively.