The purpose and effect of the proposed rule amendment will be to adopt minimum water levels and flows for Silver Springs and the Silver River in Marion County.  

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    WATER MANAGEMENT DISTRICTS

    St. Johns River Water Management District

    RULE NO.:RULE TITLE:

    40C-8.031Minimum Surface Water Levels and Flows and Groundwater Levels

    PURPOSE AND EFFECT: The purpose and effect of the proposed rule amendment will be to adopt minimum water levels and flows for Silver Springs and the Silver River in Marion County.

    SUBJECT AREA TO BE ADDRESSED: The proposed rule would establish minimum water levels and flows for Silver River and a minimum flow for Silver Springs pursuant to the mandate of Section 373.042, Florida Statutes.  Each water level has an associated duration and return interval.  The terms herein are already defined in Chapter 40C-8, F.A.C.  As with all minimum levels and flows established by the District, if adopted, the minimum levels and flows in this rule amendment would be used as a basis for imposing limitations on withdrawals of groundwater and surface water in the consumptive use permit regulatory process and for reviewing proposed surface water management systems in the environmental resource permit regulatory process.

    Members of the District’s Governing Board may attend the scheduled Rule Development Workshop.

    RULEMAKING AUTHORITY: 373.044, 373.113 FS.

    LAW IMPLEMENTED: 373.042, 373.0421 FS.

    A RULE DEVELOPMENT WORKSHOP WILL BE HELD AT THE DATE, TIME AND PLACE SHOWN BELOW:

    DATE AND TIME: April 22, 2014, 10:00 a.m. – 12:00 Noon

    PLACE: Marion County Library – Ocala Branch, 2720 E. Silver Springs Blvd., Ocala, FL 34470

    THE PERSON TO BE CONTACTED REGARDING THE PROPOSED RULE DEVELOPMENT AND A COPY OF THE PRELIMINARY DRAFT, IF AVAILABLE, IS: Wendy Gaylord, Rules Coordinator, St. Johns River Water Management District, Office of General Counsel, 4049 Reid Street, Palatka, Florida 32177, (386)326-3026, or wgaylord@sjrwmd.com

     

    THE PRELIMINARY TEXT OF THE PROPOSED RULE DEVELOPMENT IS:

     

    40C-8.031 Minimum Surface Water Levels and Flows and Groundwater Levels.

    (1)(a) The following minimum groundwater levels and minimum mean annual spring flows are established:

    Spring Name

    County

    Head

    (ft NGVD)

    Discharge

    (cfs)

    Messant Spring

    Lake

    32

    12

    Miami Springs

    Seminole

    27

    4

    Palm Springs

    Lake

    27

    7

    Rock Springs

    Orange

    31

    53

    Sanlando Springs

    Seminole

    28

    15

    Seminole Springs

    Lake

    34

    34

    Starbuck Springs

    Seminole

    31

    13

    Wekiwa Springs

    Orange

    24

    62

    (b) The following minimum median of annual median flow is established:

      Silver Springs                                       Marion                                                                      677

     

    (2) The following minimum surface water levels and flows are established:

     

    System Name

    County

    Minimum Level

    Level

    (ft NGVD)

    Level

    (ft NAVD)

    Flow

    (cfs)

    Hydroperiod Category

    Duration

    (days)

    Return Interval

    (years)

    Black Water Creek at the SR 44 Bridge

    Lake

    Infrequent High

    27.0

     

    340

    7

    5

    Frequent High

    25.8

     

    145

    30

    2

    Average

    24.3

     

    33

    180

    1.7

    Frequent Low

    22.8

     

    2.5

    90

    15

    Phase 1 Restriction

    22.7

     

    2.0

    Phase 2 Restriction

    22.5

     

    1.0

    Phase 3 Restriction

    22.4

     

    0.6

    Phase 4 Restriction

    22.3

     

    0.3

    Infrequent Low

    21.9

     

    0.0

    7

    100

    Silver River

    Marion

    Frequent High

    Average

    Frequent Low

    40.8

     

    39.1

    38.8

    39.9

     

    38.3

    37.9

    880

     

    640

    600

     

    30

     

    180

    120

    5

     

    1.7

    3

    St. Johns River 1.5 miles downstream of Lake Washington weir

    Brevard

    Frequent High

    15.3

     

    1450

    Seasonally Flooded

    Average

    12.7

     

    240

    Typically Saturated

    Frequent Low

    11.3

     

    28

    Semipermanently Flooded

    St. Johns River at SR 44 near DeLand

    Volusia

    Frequent High

    1.9

     

    4600

    30

    3

    Average

    0.8

     

    2050

    180

    1.5

    Frequent Low

    0.3

     

    1100

    120

    5

    Taylor Creek 1.7 miles downstream of structure S-164

     

    Frequent High

     

    95

    Seasonally Flooded

    Average

     

    17

    Typically Saturated

    Frequent Low

     

    0.5

    Semipermanently Flooded

    St. Johns River at SR 50 near Christmas

    Orange and Brevard

    Frequent High

    8.1

     

    1950

    30

    2

    Average

    5.9

     

    580

    180

    1.5

    Frequent Low

    4.2

     

    140

    120

    5

    Infrequent Low

    2.7

     

    43

    60

    50

    Wekiva River at the SR 46 Bridge

    Seminole and Lake

    Infrequent High

    9.0

     

    880

    7

    5

    Frequent High

    8.0

     

    410

    30

    2

    Average

    7.6

     

    240

    180

    1.7

    Frequent Low

    7.2

     

    200

    90

    3

    Phase 1 Restriction

    7.0

     

    190

    Phase 2 Restriction

    6.9

     

    180

    Phase 3 Restriction

    6.7

     

    160

    Phase 4 Restriction

    6.5

     

    150

    Infrequent Low

    6.1

     

    120

    7

    100

    (3) through (6) No change.

    Rulemaking Authority 373.044, 373.113 FS. Law Implemented 373.042, 373.0421, 373.103, 373.415 FS. History–New 9-16-92, Amended 8-17-94, 6-8-95, 1-17-96, 8-20-96, 10-20-96, 11-4-98, 6-27-00, 2-13-01, 3-19-02, 5-12-03, 11-10-03, 1-12-04, 2-1-06, 12-3-06, 5-10-07, 5-24-07, 1-11-10, 8-22-13,____________.

Document Information

Subject:
The proposed rule would establish minimum water levels and flows for Silver River and a minimum flow for Silver Springs pursuant to the mandate of section 373.042, Florida Statutes. Each water level has an associated duration and return interval. The terms herein are already defined in chapter 40C-8, F.A.C. As with all minimum levels and flows established by the District, if adopted, the minimum levels and flows in this rule amendment would be used as a basis for imposing limitations on ...
Purpose:
The purpose and effect of the proposed rule amendment will be to adopt minimum water levels and flows for Silver Springs and the Silver River in Marion County.
Rulemaking Authority:
373.044, 373.113 FS.
Law:
373.042, 373.0421 FS.
Contact:
Wendy Gaylord, Rules Coordinator, St. Johns River Water Management District, Office of General Counsel, 4049 Reid Street, Palatka, Florida 32177, (386) 326-3026, or wgaylord@sjrwmd.com.
Related Rules: (1)
40C-8.031. Minimum Surface Water Levels and Flows and Groundwater Levels