The future of Lake Henderson is at the center of a debate over a controversial drawdown plan that has drawn pushback from some fishermen and businesses that rely on the basin.Henderson Mayor Sherbin Collette said the drawdown is necessary, particularly because of current water quality concerns.Im 76 years old that's the worst water I ever saw in that lake in my life. We have to have that drawdown, Collette said.The drawdown takes place around th…