Wastewater & Water Resource Recovery

Aerial of Moores Creek

Aerial of Moores Creek (2008)

 

In 2014, RWSA’s Board of Directors renamed all wastewater plants as water resource recovery facilities in recognition of RWSA’s purpose to recover valuable resources from the water treatment process. Resources include high quality water for our local streams to enhance aquatic life, nutrient-rich soil through compost to promote new plant life, and renewable electricity from the combustion of digester gas produced from the anaerobic digestion of biosolids.

Rivanna operates four water resource recovery facilities with a combined capacity of 15.7 million gallons per day (MGD). We handle all wastewater flows from City of Charlottesville and the Albemarle County Service Authority’s municipal collection systems through RWSA’s interceptor system of pipes and pump stations to our recovery facilities. We do this efficiently, economically, and with the environment in mind.

Moores Creek (shown above) is the largest of our Advanced Water Resource Recovery Facilities, which handles all of the urban area and Crozet wastewater.  Highly skilled, trained, and licensed staff operate and maintain the treatment processes and regulatory compliance with our federal/state discharge permits.  Learn about the wastewater treatment process here.

 

Supporting Our Community’s Needs

RWSA is recognized as a leader in environmental stewardship, with an impressive record of facility discharge permit compliance. RWSA must comply with Virginia Pollutant Discharge Elimination System (VPDES) permit limitations. The Virginia Department of Environmental Quality issues the discharge permit, which is reviewed and reissued every five years.

Our strong reputation is for not only meeting, but exceeding, requirements in our discharge permits. We have invested in the necessary improvements to meet safety regulations, ensure responsive, reliable service to our customers, and protect our local streams and rivers along with the Rivanna River, James River, and the Chesapeake Bay.  We are a charter member of the Virginia Nutrient Credit Exchange Association, earning credits that we sell on the exchange, by removing nitrogen and phosphorus from wastewater above and beyond state permit requirements.

 

Current Challenge

History, topography, and proximity to Moores Creek have combined to bring us the challenge of operating a large scale wastewater plant in close proximity to neighborhoods and hospitals.  In our effort to be good neighbors, we have embarked on an extensive $9.3 million dollar odor control project to address this issue. We are putting in state-of-the-art facilities including the construction of an odor control unit with technologically advanced biological “scrubbers” which “vacuums” the air space, treating and neutralizing the odor compounds. In the end we hope to eliminate the most egregious odors, keeping them within the facility boundaries. For more about the project go to our Odor Control Project page.

 

Our Wastewater Operators

Chris spraying down flow equalization tank

Chris spraying down flow equalization basin with water canon (Photo by Andrew Shurtleff)

Few people realize the pipes, pumps, equipment, processes, and people it takes working 24/7 to treat and clean the wastewater so that it can safely be returned to the aquatic environment.  For our community, that means returning the treated water to Moores Creek, which becomes the Rivanna River, which becomes the James, which eventually becomes the Chesapeake Bay.

A typical day for one of our licensed wastewater operators consists of monitoring the local weather conditions and forecast, and monitoring various instruments and equipment to assure operation within proper parameters. Team members perform a number of analyses and evaluations to assure that our technology is functioning properly and our microbiological treatment system is effectively removing pollutants necessary to protect our environment. Team members visually inspect equipment and processes to assure proper operation. Significant wet weather events provide additional challenges as storm water enters the sanitary sewer collection system creating some extreme process flow fluctuations. The operating team must make sure that these fluctuations do not negatively impact the environmental balance in our biological treatment processes.

 

Steven with Sludge Judge

Steven using the “Sludge Judge” (Photo by Andrew Shurtleff)

Tim Checking Digestion Processes

Tim checking digestion process (Photo by Andrew Shurtleff)

 

 

 

 

 

 

 

 

 

On average, we treat 10.1 million gallons per day of wastewater. Our largest day of wastewater treated in 2016 was 22.2 million gallons . We maintain 704 manholes throughout the area.