Wastewater Treatment

Teachers! Book a tour of the Pemberton Wastewater Treatment Facility, and learn first hand about the water cycle.

The Pemberton Wastewater Treatment Plant is a Class II facility that uses an actual biological process called a Sequential Batch Reactor System. Microorganisms in the tanks decompose nutrients. Clear water is decanted off the top, treated under UV light to deactivate any remaining bugs, and released into the river.

The sludge which is left behind goes into one of two aerobic digestors, aerated for 30-55 days, then is separated into solids and water. The water re-enters the plant into the treatment process. The solids, no longer resembling their original state, are collected by Carney's Waste and composted.

Features of the Facility

  • State-of-the-art technology.
  • Sequential Batch Reactor (SBR) system.
  • Microbial decomposition of raw materials.
  • Aerobic digesters to further decompose sludge.
  • Ultraviolet disinfection of treated water.
  • Daily lab sampling with process adjustment


The population growth in Pemberton from the mid 1990's onward put a heavy burden on the former sanitary sewer system.  An assessment of that treatment plant confirmed that the plant was operating at its full capacity and had significant issues with respect to process reliability, workplace environment and odor control (Associated Engineering, 2001).

The Village of Pemberton proposed to replace the treatment plant with a new plant at a new location, due to issues with land tenure, space constraints, flood susceptibility, and general public concern.

In March of 2004, the Village of Pemberton entered into a partnership with Maple Reinders Inc. to design and build a Wastewater Treatment Plant for the Village.

The new plant is situated on Village owned land adjacent to the Lillooet River, approximately 2.5 km's downstream from the original plant.

With the completion of the new Class II Wastewater Treatment Facility, the moratorium that had been placed on building permits July 9th 2002, was rescinded effective March 15th 2005.


The Village of Pemberton Wastewater Treatment Plant (WWTP) is located at 34-1850 Airport Road, and is open by appointment Monday to Friday.


Martin Kluftinger
Phone: (604) 894-6135
Email: wwtp@pemberton.ca