Round Rock's work to finish the expansion of its Brushy Creek Regional Wastewater System Treatment Plant by 2023 continues, following council's approval of a professional consulting agreement July 9.

The consulting services agreement, budgeted as a maximum of $500,000, was approved with MLA Geotechnical for construction material testing services, per city documents.

Located at 3939 E. Palm Valley Blvd., Round Rock, the Brushy Creek Regional Wastewater System Treatment Plant's expansion is an anticipated three-year process that will increase the plant's capacity by 40%. In 2019, the plant had the capacity for handling 21.5 million gallons of wastewater per day. Following its expansion, the plant is anticipated to handle 30 million gallons of wastewater by 2023.

Construction on the site is underway, said Michael Thane, Round Rock's utility and environmental services director. The consulting agreement approved July 9 would test materials such as concrete, soil and asphalt to ensure that the products are made to the city's specifications, Thane added.

The budgeted $500,000 is a maximum assessment, with Thane adding he does not anticipate the need for the full amount's use. The plant is co-owned between the cities of Round Rock, Cedar Park and Austin, with Leander buying in as a co-owner as part of the expansion. The city of Round Rock is footing only 12% of the project's total cost, per city documents. Of the $500,000 allotted to the consulting agreement, Round Rock's portion of the bill is listed at $60,000, staff confirmed July 9.