Plummer designed the new Lubbock Northwest Water Reclamation Plant. Plummer assisted the City in determining to build a new treatment plant in lieu of paralleling interceptors across the City to handle projected peak wastewater flows from a developing area. The discharge stream through the City is sensitive to algae blooms since there is normally no phosphorus in the water. Therefore, the treatment goal was to maintain a phosphorus concentration in the discharge of less than 0.1 MGD.
The project includes an equalization/peak flow storage basin, fine screens, grit removal, a Carrousel aeration basin and a membrane bioreactor (MBR). Phosphorus removal will initially be done using chemical removal. However, provisions were designed to add BNR in the future.