BY DARRELL HALEN Water and sewer rates in Salem are going up for the second time in four months. Selectmen approved raising the rate for water from $2.58 to $3 per 100 cubic feet, and the sewer rate from $2.60 to $3.35 per 100 cubic feet. The new rate for sewer took place Oct. 1, while the new price for water goes into effect Oct. ...