The board initially planned to expand and improve the Jackson Branch plant a few years ago, and in September 2015 it increased the sewer rates to finance that, according to board meeting minutes. Those improvements were not done but the rates to cover sewer debt increased from $7 to $11.19 per month, and the sewer rate, based on volume of water used, went up from $5.01 to $7.87 per 1,000 gallons.