The calculated combined water cost is $20.34 per gallon capacity and combined sewer cost is $9.77 per gallon capacity, for a total of $30.11 per gallon, according to Wooten’s SDF study.

At the low end, water capacity for 3/4 of an inch would be $7,322 and sewer capacity for the same size would be $3,517 for a total capacity cost of $10,830. At the high end, water capacity for 12 inches would be roughly $1.6 million and sewer capacity for the same size would be $756,198  for a total capacity cost of about $2.3 million.

When asked by Commissioner Bill Lawhon how much on average it costs to install a water line per mile, Wingo said it costs about $739,000 for one mile of an eight-inch water main.

When asked the same question about putting in a new sewer line, Wingo said it would cost about $950,000 per mile of sewer.

Wingo also detailed the county recently upgraded from 900,000 gallons per day in its sewer plant to 1.2 million, which has cost about $7.2 million.

“Water and sewer line maintenance is very expensive,” Lawhon said, noting the new development fees will help pay for those types of improvements.

Going forward, Wingo told commissioners they could decide at any time to change the fees as long as they do not exceed the maximums as determined by Wooten.

Lawhon made the motion to adopt Wooten’s maximum fees for both sewer and water. It was approved 6-1, with Chairman Tommy Jordan voting against it because he felt the amounts were too expensive.

Commissioners then unanimously approved a separate motion to adopt the SDF ordinance, substituting Wooten’s maximum fees for the staff-recommended ones.

The new fees took effect Sept. 7.