Additional needs found at wastewater plant
Crews carrying out repairs and improvements for Tomball’s wastewater treatment plants identified some unexpected work required at the north plant’s lift station.
Public works director Beth Jones said that once the wet well and lift station at the north plant had been cleaned, workers discovered it needed a protective coating to maintain its integrity. Lift stations or wet wells are used for pumping sewage from a lower to higher elevation in the wastewater treatment plant.
“It was not in a condition that we’d known we had issues before it was cleaned out,” she told Tomball City Council during its regular meeting May 6.
City council approved two change orders totaling $74,387 for the additional maintenance.
The council approved the original contract of $3.6 million to JTR Constructors, Inc. in October 2017 to make improvements to the north and south plants. The improvements were deemed necessary based on a 2016 Critical Needs Assessment by Freese and Nichols, according to an agenda packet data sheet.
Council approved extending the original contract by 198 days to account for possible weather or delivery delays in addition to the needed lift station repairs.
“One of the options is to ignore this and not do it and wait for it to break. When we looked at it initially, there was no signs to tell us that it was in this condition,” said city manager Rob Hauck.