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Martin County Board of County Commissioners
Water Conditions Update
Tuesday, July 12 at 2:30 p.m.
County Commission Chambers
2401 SE Monterey Road
Current Conditions
• Lake Okeechobee at 14.78 feet • (1 week ago = 14.95 feet; 1 year ago = 12.09 feet
• Inflows to the Lake= ~1929 cubic feet/second • Outflows from the Lake=~4758 cubic feet/second • Current inflows to St. Lucie from the Lake
averaging 1170 cubic feet / second weekly • Bottom salinities at the Roosevelt Bridge
averaging ~5 ppt; only getting peaks of 8 ppt during high tides
• Up to 14 ppt when no flows from Lake • Temperatures ranging from 89-91 degrees (F)
SFWMD Survey July 7, 2016
• Sampled algae levels in the navigation channel
• Along transect running from the St. Lucie Inlet to the North Fork Narrows and up the South Fork to the St. Lucie Locks
• Also sampled C-44 from St Lucie Locks to Port Mayaca Locks
• Sampled water (0.5 meter depth) continuously with a YSI data sonde using a flow through system
St. Lucie Estuary
Water Quality Mapping on July 7, 2016
Algal Levels in the St. Lucie Estuary
Lake Okeechobee Algae Bloom (7/10/16)
7/8/16
Port Mayaca – S-308
North Fork canals / dead end canal basin 7/8/16
U.S. 1 area / Central Marine
7/8/16
Middle Estuary north shore 7/8/16
Rio / Outboards Only
7/8/16
A1A Bridge –Lower Estuary North Shore 7/8/16
County Administration Building
Hell’s Gate
7/8/16
St. Lucie Inlet 7/8/16
Air Quality Testing • Martin County contracted for air quality testing
• 4 sites (2 residential in Rio and North River Shores; 2 commercial at Outboards Only and Central Marine)
• Tested for hydrogen sulfide, species of algae, toxin levels present, and respirable particles (whether algae could be inhaled)
• Took water quality sample at each site (algae species and toxin levels)
• Data analysis and draft report not expected for a least a week and a half
• Preliminary raw data will be shared as it is available and reliable
BGA Remediation Technology Assessment
• Florida Department of Environmental Protection is the lead agency
• Technical review team being convened (Martin County represented)
• Current demonstration project occurring
• FDEP focused on additional demonstration for mechanical removal
Links to Information • www.martin.fl.us
• Beach Conditions Hotline: 772-320-3112 updated daily
• Search for Speak Up for the St. Lucie • Facebook Page: “Speak Up for the St. Lucie”
• www.martin.floridahealth.gov • Bright yellow tab at top of page for blue green algae
information
• www.dep.state.fl.us • “Algal Blooms” button on right of page • South Florida algal bloom sampling results
• www.saj.usace.army.mil • Lake Okeechobee button on right of page • “Current Conditions” and “Daily Reports”
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