TMWRF contracted Brown and Caldwell to conduct a facility plan to examine the most efficient path forward for the treatment plant as expansion occurs. With this plan nearing finalization, an alternative treatment technology known as aerated granular sludge was identified as an alternative approach. TMWRF currently utilizes technology that works well for the removal of various wastewater pollutants, but there are certain advantages to the aerated granular sludge process such as lower chemical demand, smaller footprint, and less unit operations for the same treatment. Given TMWRF’s strict discharge limits and the potential benefits from this process, a small-scale pilot test is recommended to ensure this alternative will enable TMWRF to comply with treatment requirements.

The proposed agreement includes a six-month rental of pilot scale equipment and limited technical support from Aqua-Aerobic Systems, Inc., the Aqua Nereda parent company. The pilot treatment system is comprised of two aerated granular sludge reactors, pipes, valves, analyzers, and other supporting components housed in trailer units. The pilot system is scheduled for delivery mid-January, which will provide TMWRF an opportunity to research the start-up and acclimation of the biological system during the colder months, an important stress test of the technology. The six-month-long pilot duration will give insight into the seasonal impacts on treatment efficiency.

The total cost of the pilot project is $165,000.00. City of Reno engineering staff will manage the project with Sparks reimbursing Reno pro rata based on TMWRF ownership.  Based on the current ownership ratio (31.37% Sparks and 68.63% Reno), the City of Sparks's share of this agreement is $51,760.50.

1. City Council may approve the agreement as presented by staff.
2. City Council may reject the agreement and give further direction to the City Manager.

I move to approve the agreement (AC-5719) between the City of Reno, City of Sparks, and Aqua-Aerobic Systems, Inc., for rental of a pilot unit for the investigation of aerated granular sludge technology at TMWRF in the amount of $165,000 with Sparks's share being $51,760.50.