Snapshot Day 10/12/05 Data
(Salt Front RM 53.2)
RIVER MILE 0
The Urban Divers/Gowanus Canal
Location: Deck @ Gowanus Canal – 2nd & 3rd Street
Area: Boat launch, deck along side end street, bulkhead
Surrounding Land Use: urban/residential 80% ; industrial/commercial 20%
Sampling Site: 10 yards south of discharge pipe
6 feet deep, muddy & sandy gravel bottom
Plants in area: None
ITEM
Time
Reading 1
Physical
Air Temperature
11:30
12 C
Wind Speed
Cloud Cover
Weather today
Weather recently
Water
Temperature
Turbidity
Chlorophyll
Reading 2
Comments
Water Calm
overcast
Continuous rain, intermittently heavy @ times ~ 1 to 2 “
Heavy rain for the last 3 days
11:30
Surface 15 C
Bottom 18 C
11:30
6 inches
secchi
4.5 inches
11:45
Sample (1) 5.0
Samples 1 & Samples 3 & 4
Sample (2) 2.0
2 were taken were outside of
Sample (3) 0.3
in area
the runoff area
Sample (4) 0.3
w/silted
runoff
Chemical
DO
(ampules)
12:30
Surface 7.0 mg/L
Bottom 7.0 mg/L
Temp. 15 C
Bottom 18
C
pH
12:00
Surface 7.0
Bottom 7.5
Phosphate
12:55
Nitrate
12:50
Surface 7.0
Bottom 7.5
Surface 0.1 mg/L
Bottom 0.2 mg/L
Surface 0.2 mg/L
Bottom 0.2 mg/L
Alkalinity
Salinity
n/a
12:15
Surface 25 ppt
Bottom 10 ppt
Surface 25
ppt
Bottom 25
ppt
72% saturated
82% saturated
Surface 0.2
Bottom 0.2
hydrometer
Fish Catch
Unable to catch
traps due to the
weather – Sample
of fish caught
here previously:
Number
Caught
Blue crab
Asian green crab
Juvenile striped bass
American eel
Shrimp
Juvenile blackfish
Atlantic silverside
Tides
11:30
rising
South
ebb
Currents
American tomcod
Searobbin
Oyster toadfish
Jellyfish
Minnow, Killies, Mummichog
Winter flounder
Horseshoe crab