Estuarine Conditions as of June 17, 2008
St. Lucie Estuary
Current Conditions:
There were no releases
through S-80 from C-44 and S-49 from C-24 over the past week. An average
discharge of 13.65 cfs from S-48 of C-23 occurred over the past week. The
current weekly average salinities (in bold) at the four monitoring sites in the
St. Lucie are given below in parts per thousand (ppt), along with the previous
week’s (in parenthesis). The surface salinity at A1A Bridge is a three-day
average (see attached).
|
Weekly Average Salinity
(ppt) |
|
|
Sampling Site |
Surface |
Bottom |
Envelope |
|
18.05 (18.06)
|
20.77
(20.11) |
|
HR1 (N. Fork) |
21.05 (20.92) |
23.42 (22.16) |
|
|
24.22 (23.72) |
25.42 (24.43) |
8.0 – 25.0 |
A1A Bridge |
29.83 (29.82) |
NA (30.31)
|
20.0 – 31.0 |
Compared with salinities of
the previous week, average salinity increased slightly throughout the
estuary. The surface salinities at both Roosevelt and A1A Bridge are just
within the upper limit of the preferred range. The bottom salinity at
Caloosahatchee Estuary
Current Conditions:
An average weekly discharge
of 111 cfs occurred at S-79 and 230 cfs occurred at S-77. No discharge
occurred at S-78. The concentration of chlorides at the Olga Plant was
228 ppm yesterday, down from 232 ppm in the beginning of this reporting period.
Current weekly averages (in bold) may be compared to last week’s data (in
parenthesis).
|
Weekly Average Salinity
(ppt) |
|
Sampling Site |
Surface |
Bottom |
|
17.84 (19.97) |
20.06
(21.53) |
Rt. 31 Bridge |
18.25
(20.20) |
22.68 (22.91) |
I-75 Bridge |
20.71 (21.80) |
22.55 (23.03) |
|
24.67
(26.11) |
25.67
(26.50) |
|
30.04 (31.73) |
29.98 (32.16)
|
Shell Point |
35.08 (35.70) |
35.22 (36.46) |
Average salinities dropped
about 1-2 ppt throughout the estuary. Average salinity at the
No Karenia brevis, the
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click on “Technical Summary”
scroll to the bottom and click on “Coastal Ecosystems”
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