A three-dimensional digital rendering of the upcoming drinking water treatment plant provided Ralls County Public Water Supply District #1 Board of Directors members a comprehensive look at what the new plant would look like.

A three-dimensional digital rendering of the upcoming drinking water treatment plant provided Ralls County Public Water Supply District #1 Board of Directors members a comprehensive look at what the new plant would look like.

District Engineer Mark Bross joined fellow Klingner and Associates employee Christina Cane to show board members exterior views and equipment and room layouts inside the plant, along with multiple angles viewing angles and the ability to remove layers to reveal specific sections at the board meeting on Tuesday, April 25. Material choices and layout decisions were driven by considerations unique to drinking water treatment plants, like containment of chlorine vapors, minimizing corrosion and cutting down on condensation that occurs with cold water in a warm environment, Bross said.

As Cane operated the 3-D computer modeling program to change the views of the digital rendering, Bross pointed out sections like office space, laboratory areas and a mechanical room. He described how the water would be treated and delivered to customers through the design.

The group saw how the main plant would function, looking at the clarifier unit, filters, chlorine feed system and the lime silo for filtering the water. Bross said water would enter the plant from the district’s ground wells, where plant staff would filter the water and store it in the clear well. Bross pointed to the half-million gallon clear well, where treated water is stored to be pumped out to customers through two high-service pumps. The facility will span under 100,000 square feet, and its design will allow for easy expansion in the future, Bross said.

Cane said the walls on the rendering were insulated concrete forms (ICF), which have no air cavity. The forms consist of layers of insulation on each side with concrete poured between the layers, which Cane said would be effective for curbing condensation and efficiently insulating the structure. The ICF construction method would initially cost more than masonry or metal construction, but Bross said it would offer long-term benefits and ICFs are becoming more common in commercial construction.

“We feel comfortable from researching it that we would save 10 to 15 percent over metal stud and three to five percent per year over masonry,” Bross said. “So in 20 years you’ve paid for that difference.”

Bross told the board members he would follow up in two months with another visual update. Alliance Divisional Manager Tony Sneed said he appreciated seeing the rendering, noting that it provided greater depth of detail than looking at a paper plan.

District financial advisor Charles Zitnik talked about the bond sale during the preceding week, which he said was similar to the bidding process for a project or purchase. Merrill Lynch met the conditions of the bid and locked in the lowest interest of the three competing institutions, at a 3.46 percent fixed rate. The district received a non-refundable good faith deposit of $111,600, which they will wire to their trustee bank in Kansas City. Zitnik said the closing date for the $11,225,000 loan will be Thursday, April 26. He explained that this loan would finance plant construction and the balance of the water lines not covered by the district’s forthcoming United States Department of Agriculture loan.

In other business:

• Incumbents Danny Behl and Charles Strode re-filed for their board seats, so no election was necessary. The board agreed to retain current officers: Frank Burch, President; Martin Judlowe, Vice President; Michelle Lehenbauer, Treasurer; and Ronda Barton, Clerk.

• Alliance Local Manager Lucas Drullinger requested the purchase of 30 Neptune radio read meters and 20 Neptune radio read registers from Schulte Supply, at an anticipated total cost of $7,987.50. The board approved the request.

• The Missouri Department of Natural Resources (DNR) reported that disinfectant levels at 52015 Big Lane and 1334 New London Gravel Road exceeded DNR-approved figures in the fourth quarter of 2016. Drullinger has been in contact with DNR about the situation, which Bross said was related to the content of water the district purchases from the Hannibal Board of Public Works (BPW). Judlowe recommended sharing the findings with the BPW as a courtesy.

• Construction of the district’s two wells will move forward along with the purchase of a generator for the upcoming water treatment plant. Bross said Flynn Drilling delivered a low bid for well construction of $493,828. The generator will cost $73,325; both figures undercut the district’s initial estimates.

Reach reporter Trevor McDonald at trevor.mcdonald@courierpost.com