E. coli bacteria has been discovered in the potable water supply at Cowans Gap State Park, while the number of confirmed infections apparently coming from the lake has risen to 14.

According to the park’s website, the bacteria was discovered Tuesday in the raw water supply, before it entered the chlorine treatment plant. Pennsylvania

Department of Health spokesperson Christine Cronkright said the bacteria found in the drinking water was not E. coli O157:H7, the strain that has made over a dozen children sick since mid July.

On Thursday the Department of Health updated the total count of confirmed cases to 14. The latest case involves a child from Maryland. Cronkright said all of the individuals reported swimming in the lake, most of them during the last weekend in July.