Middle St. Johns - Florida Department of Environmental Protection

204 Water Quality Assessment Report: Middle St. Johns
Pollutants can enter a waterbody through point source discharges (generally from a
specific facility) or nonpoint discharges (e.g., stormwater runoff, septic tanks).
Government agencies, businesses, organizations, and individuals who contribute to these
discharges will be asked to share the responsibility of attaining TMDLs through load
allocations (the amount of a specified pollutant allotted for discharge) that are based on
an established TMDL. Table A.3 summarizes these potentially affected stakeholders,
and the actions they may be asked to take to help achieve a TMDL.
Table A.3: Potentially Affected Stakeholders and Actions To Achieve TMDLs
Potentially Affected Stakeholders
Municipal stormwater/wastewater programs
Commercial developers, homebuilders, individual
homeowners
Municipal and industrial wastewater treatment facilities,
National Pollutant Discharge Elimination System (NPDES)
permitted facilities
Farming and silviculture operations
Federal, regional, state agencies; regional and local water
quality coalitions
Actions To Achieve TMDL
Reduce and treat urban stormwater runoff through
stormwater retrofits, replacement of septic tanks
Improve development design and construction, enhance
best management practices, replace septic tanks
Reduce pollutant loadings from permitted discharges
Reduce and treat runoff through best management
practices
Carry out waterbody restoration projects
Permitting and Other Approaches
NPDES PERMITS
All point sources that discharge to surface water bodies require a NPDES permit.
These permits can be classified into two types: domestic or industrial wastewater
discharge permits, and stormwater permits. NPDES-permitted point sources may be
affected by the development and implementation of a TMDL. All NPDES permits
include “reopener clauses” that allow the Department to incorporate new discharge limits
when a TMDL is established. These new limitations may be incorporated into a permit
when a TMDL is implemented or at the next permit renewal, depending on the timing of
permit renewal and workload. For NPDES municipal stormwater permits, the
department intends to insert the following statement once a B-MAP is completed:
“The permittee shall undertake those activities specified in the (Name of Waterbody)
Basin Management Action Plan in accordance with the approved schedule set forth in the
B-MAP.”