7459511, 62-304.505 - Florida Administrative Rules, Law, Code, Register

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Notice: 7459511

Notice of Proposed Rule

Department:

DEPARTMENT OF ENVIRONMENTAL PROTECTION

Chapter:

TOTAL MAXIMUM DAILY LOADS

Overview

RULE:

62-304.505

Middle St. Johns River Basin TMDLs

PURPOSE:

The purpose of the rule is to adopt Total Maximum Daily Loads (TMDLs) and their allocations for waters in the Middle St. Johns River Basin that are impaired for fecal coliform, low dissolved oxygen, and nutrients.

SUMMARY:

These TMDLs address fecal coliform, dissolved oxygen, and nutrient impairments in the Middle St. Johns River Basin. Specifically, the TMDL rules being proposed for adoption are fecal coliform TMDLs for Gee Creek, Little Econlockhatchee River, Smith Canal, and Soldier Creek, and dissolved oxygen and nutrient TMDLs for Lake Harney, Lake Monroe, Smith Canal, the St. Johns River above Lake Jesup, the St. Johns River above Lake Monroe, the St. Johns River above Wekiva River, and the St. Johns River Downstream of Lake Harney. These water segments were verified as impaired using the methodology established in Chapter 62-303, F.A.C., Identification of Impaired Surface Waters. The methodologies used to develop the fecal coliform TMDLs were either the percent reduction or the load duration analysis method. The nutrient targets for water segments impaired for nutrients and dissolved oxygen were developed using trophic state index, paleolimnological data, and reference lake methods. The TMDLs for nutrients were simulated using the hydrologic simulation program – Fortran (HSPF) model. This rulemaking has been given OGC case number 09-0721.

RULEMAKING AUTHORITY:

403.061, 403.067 FS.

LAW:

403.061, 403.062, 403.067 FS.

PRINT PUBLISH DATE:

8/7/2009 Vol. 35/31

COMMENTS:

From 8/7/2009 To 8/28/2009 (21 Days)
The public comment period for this notice has already expired.

REFERENCE MATERIALS:

No reference(s).

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