6585153, 62-304.520 - Florida Administrative Rules, Law, Code, Register

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Notice: 6585153

Notice of Proposed Rule

Department:

DEPARTMENT OF ENVIRONMENTAL PROTECTION

Chapter:

TOTAL MAXIMUM DAILY LOADS

Overview

RULE:

62-304.520

Indian River Lagoon Basin TMDLs

PURPOSE:

The purpose of the rule is to adopt Total Maximum Daily Loads (TMDLs) and their allocations. The TMDLs to be adopted through this rule are for the main stem segments of the Indian River Lagoon and Banana River Lagoon, including Indian River above Max Brewer Causeway, Indian River above NASA Causeway, Indian River above 520 Causeway, Indian River above Melbourne Causeway, Indian River above Sebastian Inlet, South Indian River, Banana River above Barge Canal, Banana River below 520 Causeway, Banana River above 520 Causeway, and Newfound Harbor.

SUMMARY:

These TMDLs address the nutrient impairments in the main stems of Indian River Lagoon and Banana River Lagoon. Nutrient impairments in these waters were verified using the methodology established in Chapter 62-303, F.A.C., Identification of Impaired Surface Waters. The Pollutant Load Screening Model (PLSM) and Hydrological Simulation Program – Fortran (HSPF) were used to simulate the nutrient loadings from the drainage basin. Seagrass maps from multiple years were unified to derive the depth-limit target for seagrass restoration. The final nutrient loading targets were established based on the correlation relationships between the drainage basin nutrient loadings and seagrass depth limits in these water segments.

RULEMAKING AUTHORITY:

403.061, 403.067 FS.

LAW:

403.061, 403.062, 403.067 FS.

PRINT PUBLISH DATE:

12/31/2008 Vol. 34/53

COMMENTS:

From 12/31/2008 To 1/21/2009 (21 Days)
The public comment period for this notice has already expired.

REFERENCE MATERIALS:

No reference(s).

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