The Altoona Water Authority plans to ask customers to limit non-essential water use because of the continuing dry weather. Authority reservoirs currently contain enough water to last 190 days — or past the start of the end of February “replenishing period,” when spring rains usually begin — but at 55% of capacity, they’re down 7% from last month, General Manager Mark Perry said Thursday. “It’s concerning,” Perry said. The state Department of Environmental Protection put Blair County on a drought watch in late August, and the authority will be issuing its own drought ...