Estuarine Conditions as of September 25, 2007

 

St. Lucie Estuary

 

Current Conditions:

Release information from S-80 was unavailable the past week.  Weekly average salinities at the four monitoring sites in the St. Lucie are given below in parts per thousand (ppt).

 

 

Weekly Average Salinity (ppt)

 

Sampling Site

Surface

Bottom

Envelope

Palm City Bridge (S. Fork)

6.50

7.64

 

HR1 (N. Fork)

6.31

10.54

 

Roosevelt Bridge

11.37

11.87

8.0 – 25.0

A1A Bridge

18.37

24.10

20.0 – 31.0

 

 

Salinity declined slightly throughout the estuary.  Both the Roosevelt Bridge and A1A Bridge are within or closely within the preferred ranges.  Therefore, salinity conditions in the estuary are good (see attached).

 

 

 

Caloosahatchee Estuary

 

Current Conditions:

During the past week, discharge at S-79 averaged 342.57 cfs.  Chloride concentration at the Olga Plant is presently 75 mg/l.   Average salinity at all monitoring sites in the Caloosahatchee Estuary decreased slightly over the past week due to local runoff.  Data for specific sites are given below in parts per thousand (ppt).

 

 

Weekly Average Salinity (ppt)

Sampling Site

Surface

Bottom

Franklin Locks (S-79)

5.66

5.66

Rt. 31 Bridge

5.73

6.10

I-75 Bridge

5.27

7.47

Ft. Myers Yacht Basin

10.06

NA

Cape Coral Bridge

17.76

18.88

Shell Point

27.23

30.06

 

Salinity in the upper estuary remains high for this time of year.  The 30-day average surface salinity at Ft. Myers is 11.25 ppt.  Conditions in the upper estuary are fair.  Downstream of the Cape Coral Bridge salinity conditions are good (see attached).

 

FWRI reports that no Karenia brevis, the Florida red tide organism, was detected this week in water samples collected alongshore between Pinellas and Collier counties.

 

 

To find this information on the web:

https://my.sfwmd.gov/portal/page?_pageid=1314,2554645,1314_19738269:1314_19738234&_dad=portal&_schema=PORTAL

·        click on “Current Week”

·        click on “Technical Summary”

·        scroll to the bottom and click on “Coastal Ecosystems”

 

 

Back to Lake Okeechobee Operations Main Page

Back to U.S. Army Corps of Engineers WSE Homepage