Tampa Bay Nitrogen Management Consortium Update. Holly Greening Tampa Bay Estuary Program March 2014. Fast Facts about Tampa Bay. Florida’s largest open- water estuary Open water: 400 sq miles Watershed : 2,600 sq miles Average water depth: 12 feet
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Tampa Bay Estuary Program
“The Kitchen” (Hillsborough Bay near Gibsonton)
Photo by JOR Johansson
Common pollutant: NITROGEN
Seagrass Restoration Goal:
Restore seagrass acreage to that observed in ~1950.
Difference between 1950 and 1990 seagrass cover
Tampa Bay Nitrogen Management Consortium
45+ NMC participants agreed to help meet nitrogen load reduction goal of 17 tons/year to offset/preclude anticipated TN increases
Annual average chl-a concentration thresholds
Advanced wastewater treatment begins
Stormwater regulations enacted
Data source: EPCHC
1998- EPA Region 4 approves TN loads for 1992-1994 as TMDL for nitrogen for Tampa Bay.
2008- EPA stated that allocations would be required to be incorporated into FDEP regulatory permits in 2010
FDEP allowed Consortium to collaboratively develop recommended allocations to all sources within the watershed.
Consortium participants willing to work together to develop voluntary allocations (caps) for nitrogen loads from each entity, for agencies’ consideration.
Decided they wanted to ‘drive the bus’
Please update contact information for your entity– sheets being circulated.