The purpose of this rulemaking is to establish minimum flows pursuant to Section 373.042, F.S., for the Gum Slough Spring Run located in Marion and Sumter Counties. The effect of the rule is to support the District’s water supply planning, water use ...

 

WATER MANAGEMENT DISTRICTS

Southwest Florida Water Management District

RULE NO.:RULE TITLE:

40D-8.041Minimum Flows

PURPOSE AND EFFECT: The purpose of this rulemaking is to establish minimum flows pursuant to Section 373.042, F.S., for the Gum Slough Spring Run located in Marion and Sumter Counties. The effect of the rule is to support the District’s water supply planning, water use permitting, and environmental resource permitting programs.

SUMMARY: Section 373.042, F.S., requires the District to establish minimum flows and levels for water bodies located within the District’s boundaries. This rulemaking is necessary to establish the minimum flows for the Gum Slough Spring Run and associated springs in northwestern Sumter County and southwestern Marion County. The establishment and periodic evaluation of minimum flows is required by statute to ensure that the minimum hydrologic requirements of the water resources and ecology of this spring group are maintained. The establishment of minimum flows for the Gum Slough Spring Run are being developed using previously peer-reviewed, Governing Board adopted methods.

SUMMARY OF STATEMENT OF ESTIMATED REGULATORY COSTS AND LEGISLATIVE RATIFICATION: The Agency has determined that this will not have an adverse impact on small business or likely increase directly or indirectly regulatory costs in excess of $200,000 in the aggregate within one year after the implementation of the rule. A SERC has not been prepared by the Agency.

The Agency has determined that the proposed rule is not expected to require legislative ratification based on the statement of estimated regulatory costs or if no SERC is required, the information expressly relied upon and described herein: The District conducted an economic review of the revisions to the rule and determined that the impact or regulatory cost, if any, of the revisions will not exceed any one of the economic analysis criteria in a SERC as set forth in Section 120.541(2)(a), F.S. The revised minimum levels for this spring run is unlikely to constitute an additional significant regulatory constraint on groundwater or surface water withdrawals in the area due to existing resource conditions and regulatory constraints in the basin.

Any person who wishes to provide information regarding a statement of estimated regulatory costs, or provide a proposal for a lower cost regulatory alternative must do so in writing within 21 days of this notice.

RULEMAKING AUTHORITY: 373.044, 373.113, 373.171 FS.

LAW IMPLEMENTED: 373.036, 373.042, 373.0421, 373.086, 373.709 FS.

IF REQUESTED WITHIN 21 DAYS OF THE DATE OF THIS NOTICE, A HEARING WILL BE SCHEDULED AND ANNOUNCED IN THE FAR.

THE PERSON TO BE CONTACTED REGARDING THE PROPOSED RULE IS: Kym Rouse Holzwart, M.S., Certified Senior Ecologist and Senior Environmental Scientist, SWFWMD, 2379 Broad Street, Brooksville, FL 34604, [e-mail], [phone] or 1(800)423-1476 (FL Only) extension 4295 (OGC #2016001 - Amissa).

 

THE FULL TEXT OF THE PROPOSED RULE IS:

 

40D-8.041 Minimum Flows.

(1) through (17) No change.

(18) Minimum Flow for Gum Slough Spring Run.

(a) For purposes of this rule, Gum Slough Spring Run includes the watercourse from the Gum Slough Springs Group headspring to the Withlacoochee River, including all named and unnamed springs that discharge to the spring run.

(b) The Minimum Flow for Gum Slough Spring Run is 94% of the natural flow as measured at the United States Geological Survey Gum Springs near Holder, FL Gage (Gage No. 02312764), or as measured at any point downstream from this Gage.  Natural flow is defined for the purpose of this rule as the flow that would exist in the absence of water withdrawal impacts.

(c) The Minimum Flow for Gum Slough Spring Run also includes a flow-based Minimum Low Flow Threshold of 43 cfs at this Gage. No surface water withdrawal shall be permitted that would individually or cumulatively cause the natural flow to be reduced below the Minimum Low Flow Threshold of 43 cfs.

(d) The District will re-evaluate the Minimum Flow within ten years of adoption of this rule.

Rulemaking Authority 373.044, 373.113, 373.171 FS. Law Implemented 373.036, 373.0361, 373.042, 373.0421 FS. History–New 10-5-74, Amended 12-31-74, Formerly 16J-0.15, 40D-1.601, Amended 10-1-84, 8-7-00, 2-6-06, 4-6-06, 1-1-07, 11-25-07, 2-18-08, 3-2-08, 5-12-08, 5-10-09, 3-23-10, 3-28-10, 7-12-10, 8-2-10 (8), 8-2-10 (15), 10-16-12, 3-20-13(16), 3-20-13(17), _____ (18).

 

NAME OF PERSON ORIGINATING PROPOSED RULE: Southwest Florida Water Management District

NAME OF AGENCY HEAD WHO APPROVED THE PROPOSED RULE: Southwest Florida Water Management District Governing Board

DATE PROPOSED RULE APPROVED BY AGENCY HEAD: March 29, 2016

DATE NOTICE OF PROPOSED RULE DEVELOPMENT PUBLISHED IN FAR: February 11, 2016