3.11
Summary
of all Stations
Table 3.11.1 Use
support ratings given by UNCW researchers for the LCFRP stations
for 2001-2002 sampling period for dissolved oxygen, chlorophyll a, fecal
coliform
bacteria, turbidity and excessive nutrients, based in part on State Standards.
FS (fully supporting) – standard exceeded in < 10 % of the
measurements
PS (partially supporting) – standard exceeded in 11-25 % of the measurements
NS (non supporting) – state standard exceed in > 25 % of the measurements
|
Subbasin |
Station |
DO |
Swamp
DO |
Chl
a |
Fecal
Coliform |
Turbidity |
Excessive
Nutrients |
|
03-06-16 |
BRN |
FS |
|
FS |
FS |
FS |
|
|
|
HAM |
PS
(25%) |
|
FS |
PS
(17%) |
FS |
|
|
|
NC11 |
FS |
|
FS |
FS |
FS |
|
|
03-06-17 |
LVC |
FS |
|
FS |
FS |
FS |
|
|
|
AC |
FS |
|
FS |
FS |
FS |
|
|
|
DP |
FS |
|
FS |
FS |
FS |
|
|
|
IC |
PS
(25%) |
|
FS |
FS |
FS |
|
|
|
NAV |
NS
(33%) |
|
FS |
FS |
FS |
|
|
|
HB |
FS |
|
FS |
PS
(25%) |
FS |
|
|
|
BRR |
FS |
|
FS |
FS |
PS
(17%) |
|
|
|
M61 |
FS |
|
FS |
FS |
FS |
|
|
|
M54 |
FS |
|
FS |
FS |
PS
(17%) |
|
|
|
M42 |
FS |
|
FS |
FS |
FS |
|
|
|
M35 |
FS |
|
FS |
FS |
FS |
|
|
|
M23 |
FS |
|
FS |
FS |
FS |
|
|
|
M18 |
FS |
|
FS |
FS |
FS |
|
|
|
SPD |
FS |
|
FS |
FS |
FS |
|
|
03-06-18 |
SR |
NS
(50%) |
NS
(42%) |
FS |
PS
(25%) |
FS |
|
|
03-06-19 |
LCO |
FS |
|
FS |
FS |
FS |
|
|
|
GCO |
NS
(33%) |
PS
(17%) |
FS |
FS |
FS |
|
|
|
6RC |
FS |
|
FS |
PS
(17%) |
FS |
|
|
03-06-20 |
COL |
FS |
|
FS |
FS |
FS |
|
|
|
B210 |
FS |
|
FS |
FS |
FS |
|
|
|
BBT |
PS
(17%) |
|
FS |
no
sample |
FS |
|
|
03-06-21 |
N403 |
NS
(66%) |
NS
(58%) |
FS |
FS |
FS |
TP
and nitrate-N |
|
03-06-22 |
PB |
NS |
NS
(33%) |
FS |
FS |
FS |
TP
and nitrate-N |
|
|
GS |
NS |
NS
(33%) |
PS
(17%) |
PS
(17%) |
FS |
|
|
|
SAR |
FS |
|
FS |
FS |
FS |
|
|
|
LRC |
FS |
|
NS
(50%) |
NS
(50%) |
FS |
|
|
|
ROC |
FS |
|
FS |
FS |
FS |
TP
and nitrate-N |
|
03-06-23 |
ANC |
NS
(58%) |
NS
(58%) |
FS |
PS
(17%) |
FS |
TP
and nitrate-N |
|
|
BCRR |
NS
(50%) |
NS
(50%) |
PS
(17%) |
NS
(50%) |
FS |
|
|
|
BC117 |
FS |
|
FS |
NS
(67%) |
FS |
TP
and nitrate-N |
|
|
NCF117 |
PS
(25%) |
PS
(17%) |
FS |
FS |
FS |
|
|
|
NCF6 |
FS |
|
FS |
FS |
FS |
|
Of the 35 stations monitored by the
Lower Cape Fear River Program, twelve sites had low dissolved oxygen levels.
66% of the stations were fully supporting for dissolved oxygen.
Nine stations had excessive fecal coliform bacteria concentrations, and
75% of stations were found to be fully supporting.
Two stations were partially supporting for turbidity concentrations, and
94% of sites were found to be fully supporting.
One station was found to be partially supporting for chlorophyll a
concentrations and 97% of stations were fully supporting.
Five stations were identified as having excessive nutrient levels.
High total phosphorus levels and high nitrate-nitrite levels were
detected in 14% of stations.
3.12 Acknowledgment
We thank Melissa Smith of the UNC Wilmington CMS for much help in
producing the graphics for this chapter.
3.13
References Cited
Mallin, M.A., M.H. Posey, G.C. Shank, M.R. McIver,
S.H. Ensign and T.D. Alphin. 1999. Hurricane effects on water quality and
benthos in the Cape Fear Watershed: Natural and anthropogenic impacts. Ecological
Applications 9:350-362.
Mallin, M.A., L.B. Cahoon, D.C. Parsons and S.H. Ensign. 2001. Effect of nitrogen and phosphorus loading on plankton in Coastal Plain blackwater streams. Journal of Freshwater Ecology 16:455-466.
Mallin, M.A., L.B. Cahoon, M.R. McIver and S.H.
Ensign. 2002. Seeking science-based nutrient standards for coastal
blackwater stream systems. Report No. 341. Water Resources
Research Institute of the University of North Carolina,
Raleigh, N.C.
NCDENR. 2000. Cape Fear River Basinwide Water Quality Plan. North Carolina Department of Environment and Natural Resources, Division of Water Quality, Water Quality Section, Raleigh, NC, 27699-1617.