What Waters in Prince William County Are "Impaired"?
To be completed
SECTION I of the Impaired Waters List is divided into 3 sections:
- PART 1A -- waters that require development of a TMDL because they do not support, or only partially support the designated uses, other than shellfish
- PART 1B -- waters that do not support, or only partially support, shellfish consumption uses
- PART 1C -- waters with impairments either fully or partially due to natural causes. Additional assessment will determine if a TMDL is needed
- PRINCE WILLIAM COUNTY WATERS LISTED IN SECTION I OF THE IMPAIRED WATERS LIST:
- - Cedar Run -- 28 miles from the confluence at Mill Run downstream
to its confluence with the Occoquan River. Not swimmable, partially
supports aquatic life Impairment causes are fecal coliform and phosphorous
1A, Identified in 1998; TMDL scheduled for 2004
- - Occoquan Reservoir -- 1,700 acres includes all of the Occoquan Reservoir
Not supporting aquatic life Impairment causes are dissolved copper (surface
and bottom), dissolved oxygen (bottom), and total phosphorous (surface
and bottom). The source of dissolved copper is thought to be copper
sulfate applied to control algal blooms. Dissolved oxygen problems are
thought to occur as a result of mixing of the water column near the
dam. The total phosphorus are believed to be due to ongoing agricultural
and development activities. 1A & 1C, identified 2002; TMDL scheduled
for 2010
- - Broad Run -- 7.26 miles from the confluence of Rocky Branch to the
confluence of Cannon Branch Partially supports swimming uses Impairment
cause is fecal coliform 1A, Identified in 2002; TMDL scheduled for 2010
- - Broad Run -- From Lake Manassas continuing 1.51 miles upstream Partially
supports swimming uses Impairment cause is fecal coliform 1A, Identified
in 2002; TMDL scheduled for 2010 Bull Run -- 4.8 miles from the confluence
with Cub Run to confluence with Pope's Head Creek Partially supporting
aquatic life Impairment unknown 1A, identified in 1994; TMDL scheduled
for 2010
- - Kettle Run -- 7.59 miles extending upstream from the confluence
with Broad Run Not swimmable Impairment cause is fecal coliform 1A,
Identified in 2002; TMDL scheduled for 2010
- - Neabsco Bay -- .37 miles extending upstream from the confluence
with the Potomac River Partially supporting aquatic life and fish consumption
Impairment causes are pH and PCBs in fish tissue 1A, identified 2002;
TMDL scheduled for 2014
- - Neabsco Creek -- 8.8 miles contuing upstream from the start of the
Creek's tidal waters near the Potomac Partially supporting aquatic life
Impairment cause is fecal coliform 1A, identified 2002; TMDL scheduled
for 2010
- - Occoquan Bay -- .69 miles, half mile radius around DEQ monitoring
station in center of Bay Partially supporting aquatic life and fish
consumption Impairment causes are pH and PCBs in fish tissue 1A, identified
2002; TMDL due 2014
- - Chopawamsic Creek -- .1 sq. mile, to the upstream limit of tidal
waters Partially supports aquatic life Impairment cause is pH 1A, identified
2002, TMDL due 2014
- - Chopawamsic Creek -- .76 miles upstream from free flowing waters
Partially supports aquatic life Impairment cause is pH 1A, identified
2002, TMDL due 2014
- - Quantico Creek -- 1.8 miles about .75 rivermiles upstream of I-95
to the end of free flowing waters Partially supports fish consumption
Impairment cause is PCBs 1A, identified 2002, TMDL due 2014
- - Powell's Creek -- 5.02 miles from about .2 rivermiles below Lake
Montclair downstream to the end of free flowing waters Partially supports
swimming and fish consumption Impairments are fecal coliform, PCBs and
PAH in fish tissue 1A, identified 2002, TMDL due 2014
- SECTION II of the Impaired Waters List contains waters where a VA
Pollutant Discharge Elimination System permit has been issued that will
take some time to achieve stated goals.
- PRINCE WILLIAM COUNTY WATERS LISTED IN SECTION II OF THE IMPAIRED
WATERS LIST
- Neabsco Creek -- 9.15 miles listed for amonia (1998) & dissolved oxygen
(2002), attributed to the Dale Service Corporation Quantico Creek --
.83 miles listed for Selenium,
attributed to the Possum Point Power Station
- SECTION III of the Impaired Waters List contains waters identified
for delisting or removal from Parts I or II of the Impaired Waters List.
- PRINCE WILLIAM COUNTY WATERS LISTED IN SECTION III OF THE IMPAIRED
WATERS LIST
- South Run -- 2.34 miles listed for general standard and silver, source
unknown
- Cedar Run -- .26 miles listed for ammonia, attributed to USMC Quantico
Camp
- Slate Run -- 4.5 miles listed for ammonia, attributed to Nokesville-Manassas
STP
- Broad Run -- 15.87 miles listed for TR, attributed to Manassas City
WTP
- Marumsco Creek -- .98 miles listed for ammonia, attributed to Gleaton's
Mobile Homes
- Neabsco Creek -- 1.57 miles listed for ammonia, attributed to Mooney
Wastewater Treatment Plant
- South Fork Quantico Creek -- listed for ammonia, attributed to the
Independent Hill Complex
- Potomac River -- 80.59 miles listed for ammonia, attributed to Quantico
Mainside MCCDEC
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