Major Projects
AlexRenew’s major projects are a vital investment in the public health of the community we serve, and a commitment to preparing for a future with continued access to clean water and healthy waterways.
RiverRenew
RiverRenew is the largest infrastructure initiative in the history of Alexandria. RiverRenew includes multiple projects that consist of a new tunnel system and upgrades to Alexandria's wastewater treatment facility. Once complete, it will prevent over 120 million gallons of combined sewage from entering our waterways each year.
PhaseForward
The PhaseForward program includes a series of significant upgrades to critical wastewater processes that will allow us to meet evolving regulatory requirements and continue to improve the resilience of our infrastructure. PhaseForward includes four (4) major projects:
Biosolids Diversification: Upgrades to meet emerging regulations, increase bioenergy production, and realize alternative beneficial end uses for biosolids
Headworks Renewal: Improvements to ageing equipment that provides initial screening of debris larger than a pea and settling for solids as small as a grain of sand. New pumping systems to ensure wastewater flows from the community through our wastewater treatment processes
Process Optimization: Installation of new equipment to enhance our nutrient removal processes and continue to improve water quality in the Chesapeake Bay and its tributaries
Nutrient Reduction: Rehabilitation of processes providing the final settling and filtration of wastewater to further reduce nutrient loads and allow for continued growth in our community
Biosolids Diversification: Upgrades to meet emerging regulations, increase bioenergy production, and realize alternative beneficial end uses for biosolids
Headworks Renewal: Improvements to ageing equipment that provides initial screening of debris larger than a pea and settling for solids as small as a grain of sand. New pumping systems to ensure wastewater flows from the community through our wastewater treatment processes
Process Optimization: Installation of new equipment to enhance our nutrient removal processes and continue to improve water quality in the Chesapeake Bay and its tributaries
Nutrient Reduction: Rehabilitation of processes providing the final settling and filtration of wastewater to further reduce nutrient loads and allow for continued growth in our community
Commonwealth Interceptor Study
AlexRenew is studying a portion of the Commonwealth Interceptor — a separate sanitary sewer that is owned and operated by the authority — to evaluate alternatives to mitigate capacity issues in the interceptor due to excess infiltration and inflow.
Alternatives being evaluated include:
- Improving the existing stormwater system capacity to minimize flooding (City project)
- Disconnecting rain leaders from the separate sanitary sewer system (City project)
- Eliminating discharges from foundation drains and sump pumps into the separate sanitary sewer system (City project)
- Removing cross-connections (City project)
- Sealing manhole covers on separate sanitary sewers in low-lying areas (City project)
- Rehabilitating existing separate sanitary sewers, manholes, and laterals (City project)
- Increasing the capacity of Commonwealth Interceptor (AlexRenew implemented project)
Watch the video below to learn more about the study.