The H.L. Mooney Advanced Water Reclamation Facility in
Woodbridge has earned a Platinum11 Peak Performance Award from the National
Association of Clean Water Agencies (NACWA). Mooney is one of only five member
facilities to be 100% compliant with its state regulations for 11 years in a
row. Each year, NACWA recognizes the commitment, innovation and achievements of
individuals and public agencies in the clean water community through their
Award Programs. The NACWA will present the 2019 Awards to this year’s winners
during a virtual awards ceremony on October 28, 2020.
The H. L. Mooney is
located in eastern Prince William County near the Potomac River. The facility
treats wastewater from homes and businesses customers located in the eastern
half of the County. HL Mooney Advanced Water Reclamation Facility was originally
in 1979, expanded in the 1990’s to 18 million gallons a day and again expanded
to 24million gallons a day 2010 to accommodate continuing growth in the County’s
population. In addition, the
effectiveness of the nitrogen removal was improved in the latest plant upgrade
to meet the requirements of the Chesapeake Bay TMDL. The latest upgrade cost
$131.7 million paid for by the system customers.
Mooney also removes approximately 140 tons per year of
phosphorous and 730 tons per year of nitrogen from the water before it is
discharged into Neabsco Creek, a tributary of the Potomac River. Nitrogen and
phosphorous are nutrients that boost the growth of aquatic algae that create
the annual Dead Zone. The Chesapeake Bay TMDL limits the amount of nitrogen,
phosphorus and sediment that can be released into the Bay.
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