The Denison City Council recently approved a $169,000 contract with Alan Plummer and Associates for engineering services related to the development of a new city-wide wastewater master plan. The plan, once created, would map out much of the city’s wastewater infrastructure and determine future needs.

The new wastewater plan comes as the city continues ongoing work on its comprehensive plan, which outlines expected and desired land use and growth within the city. As part of this work, the city is also looking at its infrastructure needs, capacity and condition.

“Sometimes, if we don’t know what we have out there, we might be hesitant on some development because we are unsure if we can handle it,” Denison Public Works Director Bobby Atteberry said.

Through the project, Atteberry said the city will be conducting flow monitoring and data gathering in order to update the city’s maps. Atteberry said that the flow monitoring would likely be conducted during peak hours to see where the greatest flow and capacity issues may be.

“They always claim that at 5 p.m. the flow is at its highest because that is when people get home, take a shower and do other things,” he said with a slight chuckle.

Following the study, Atteberry said the engineers will offer recommendations for infrastructure upgrades and other improvements that the city might consider. As an example, Atteberry said in an area with an eight-inch line, the consultants might suggest an increase to a larger pipeline or a second parallel line to meet current and future needs.

Atteberry said this is the first time the city has conducted a master plan for its wastewater infrastructure, but said it was only recently that Denison needed to do so due to recent growth at various parts of the city. Even in areas that haven’t seen growth, Atteberry said the study is necessary.

“We know where they are, but we don’t have them mapped or know how they might affect other parts of the city,” Atteberry said.

For the project, Atteberry said the city is prepared to send $194,000. This includes $25,000 for the city to conduct its own water monitoring in house. During contract negotiations, it was determined that the city could do this part of the work for less than the $80,000 Plummer quoted the city for the service, Atteberry said.

Atteberry said the work on the master plan is the first of several planning documents that Denison plans to do in conjunction with its work on the comprehensive plan. Along with the wastewater plan, Atteberry said the city plans to revise and update its water system master plan, which was last revised in 2015.

As a part of the comprehensive plan itself, Atteberry said consultants plan to include a city-wide thoroughfare plan, which will outline the city’s major roadways and future arterials throughout the city.