Niagara Bottling is issuing a voluntary recall of 14 brands of bottled water products due to concerns of possible E. coli contamination from the spring source.  Today’s heat index is expected to reach 105 degrees, so residents drinking bottled water should be cautious of the brands involved in the recall. “E. coli can be a very serious infection.  Given the Code Red weather today, out of an abundance of caution, we want to alert residents drinking bottled water of the voluntary recall,” said Baltimore City Health Commissioner Dr. Leana Wen.