The grand opening of a massive Texas water park on Wednesday included a hazardous chemical incident at one part of Great Wolf Lodge in Webster, Texas. The incident happened in a pool house that is not a part of the water park, according to the Houston Chronicle. The $200 million attraction has a 92,000-square-foot indoor water park and a 61,000-square-foot Adventure Park, according to the Chronicle. Five people evacuated the building. Sixteen other employees and contractors working at the site were taken to local hospitals, according to Fox News. Webster Fire Chief Dean Spencer said a contract…