Improvements at the Jamestown wastewater treatment plant are behind the projected completion date.
At the site, which is about a quarter-mile south of Missouri 179 and School Street intersection, contractors are waiting for materials for a telescoping valve, Bartlett & West engineer Gary Davis said.
The project was expected to be completed July 31.
"They're still waiting on a valve that they ordered, and it's not on site yet," Davis said. "They aren't able to finish up until they get that last valve."
After it rains, the valve is lowered into the lagoon to adjust the water level and send the water into the treatment plant.
Contractors and engineers took a site visit during the Jamestown City Hall meeting Aug. 5 and presented updates back to the board, Davis said.
In April 2014, the U.S. Department of Agriculture approved funding for a city wastewater treatment plant in Jamestown. The city received a water and waste disposal program loan for $1.3 million, and a water and waste disposal program grant of $501,000.
The project is expected to reach the completion deadline, including grass seeding, cleaning and restoration, by Sept. 19, Davis said.
The next board meeting is scheduled for 7 p.m. Sept. 9.