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Progress Toward Restoring the Everglades: The Third Biennial Review - 2010 (2010)

Chapter: Appendix D: Regulation Schedule for WCA-3A

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Suggested Citation:"Appendix D: Regulation Schedule for WCA-3A." National Research Council. 2010. Progress Toward Restoring the Everglades: The Third Biennial Review - 2010. Washington, DC: The National Academies Press. doi: 10.17226/12988.
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Appendix D
Regulation Schedule for WCA-3A

FIGURE D-1 Regulation schedule under the Interim Operational Plan (IOP) for managing water levels in WCA-3A.

FIGURE D-1 Regulation schedule under the Interim Operational Plan (IOP) for managing water levels in WCA-3A.

SOURCE: http://my.sfwmd.gov/portal/page/portal/pg_grp_sfwmd_era/portlet_archives_meetings_subtabs/toc_archives/archives/2004_08_26/wca_schedules_082604.pdf.

Suggested Citation:"Appendix D: Regulation Schedule for WCA-3A." National Research Council. 2010. Progress Toward Restoring the Everglades: The Third Biennial Review - 2010. Washington, DC: The National Academies Press. doi: 10.17226/12988.
×

TABLE D-1 WCA-3A Regulation Schedule Structure Discharge Rules

WCA-3A Regulation Schedule Structure Discharge Rules

ZONE

S-12

S-333

S-151

S-343A&B, S-344

Zone A

Open full when permitted subject to conditions of note 1 below Zone A is the flood storage pool for WCA-3A. water levels may require the opening of S-12C, S-12B, and/or S-12A during the period 1 Nov-15 July to avoid an unacceptable risk: of failure of WCA-3A levees and structures.

See note 2 and 3 below. Make maximum allowable discharge subject to downstream conditions.

See note below. Maximum allowable discharge when WCA-3B stage is below 8.5 ft-NGVD.

No discharges from 1 Nov- 15 Jul, unless the FWS has determined that nesting for the CSSS sub-population A has ended. If non-nesting season, then make maximum allowable discharges if downstream conditions permit

Zone B

Discharge 45% of the computed flow for Shark River Slough. From 1 Jun - 15 July, discharges are limited to S-12D, unless the FWS has determined that nesting for the CSSS sub-population A has ended. If S-333 is closed or discharging less than 28% of computed flow for Shark River Slough, S-12 must discharge at least 73% and up to 100% of the computed flow for Shark River Slough, if capacity is available.

See note 2 and 3 below. Discbarge 55% of the computed flow for Shark River Slough when permitted by downstream conditions.

See note 3 below. Maximum allowable discharge when WCA-3B stage is below 8.5 ft-NGVD.

Closed from 1 Jun through 15 July, or until the FWS has determined that nesting for the CSSS sub-population A has ended. Otherwise, normally closed in this zone, unless water is needed for environmental reasons.

Zone C

Discharge 45% of the computed flow for Shark River Slough amount. If S-333 is closed or reduced in flow. S-12 can discharge- up to 100% of the computed flow for Shark River Slough, if desired by ENP, subject to conditions in note 1 below.

See note 2 and 3 below. Discharge 55% of the computed flow for Shark River Slough when permitted by downstream conditions.

See note 3 below. Maximum allowable discharge when WCA-3B stage is below 8.5 ft-NGVD.

No discharges from 1 Nov- 1 Jun. unless the FWS has determined that nesting for the CSSS sub-population A has ended, then make maximum allowable discharges if no downstream problems.

Zone D

Discharge 45% of the computed flow for Shark River Slough. From 1 Jun - 15 July, discharges are limited to S-12D, unless the FWS has determined that nesting for the CSSS sub-population A has ended. If S-333 is closed or discharging less than 28% of computed flow for Shark River Slough, S-12 must discharge at least 73% and up to 100% of the computed flow for Shark River Slough, if capacity is available.

See note 2 and 3 below. Discharge 55% of the computed flow for Shark River Slough when permitted by downstream conditions.

See note 3 below.

Closed from 1 Jun through 15 July, or until the FWS has determined that nesting for the CSSS sub-population A has ended, S-343A&B, S-344. Otherwise, normally closed in this zone, unless water is needed for environmental reasons.

Zone E

Discharge 45% of the computed flow for Shark River Slough subject to note 1 below.

The L-67A Borrow Canal stage should not be drawn down below 7.5 FT-NGVD unless water is supplied from another source.

See note 2 and 3 below. Discharge 56% of the computed flow for Shark River Slough when permitted by downstream conditions.

The L-67A Borrow Canal stage should not be drawn down below 7.5 FT-NGVD unless water is supplied from another source.

See note 3 below.

The L-67A Borrow Canal stage should not be drawn down below 7.5 FT-NGVD unless water is supplied from another source.

Closed, unless water is needed for environmental reasons.

The L-67A Borrow Canal stage should not be drawn down below 7.5 FT-NGVD unless water is supplied from another source.

Zone El

Discharge 45% of the computed flow for Shark River Slough. From 1 Feb - 15 July, discharges are limited to S-12D, unless the FWS has determined that nesting for the CSSS sub-population A has ended. Revert to Zone E rules if the FWS has determined that nesting for the CSSS sub-population A has ended, or if the headwater at S-333 falls below 8.25 ft-NGVD.

See note 2 and 3 below. Make maximum practicable releases at S-142, S-151, S-31, S-337, S-335, S-333, S-355A&B and S-334. subject to downstream constraints. If the headWatar at S-333 falls below 8.25 ft-NGVD, then revert to Zone E rules.

Closed during period 1 Nov through 15 July or until the FWS has determined that nesting for the CSSS sub-population A has ended.

If the headwater at S-333 falls below 8.25 ft-NGVD, then revert to Zone E rules.

Notes:

1. For the S-12 Structure in Zone A, C, E, and E1: From 1 Nov - 31 Dec. discharges are limited to S-12B, C, and/or D. From 1 Jan — 31 Jan, discharges are limited to S-12C and/or D. From 1 Feb - 15 July, discharges are limited to S-12D unless the FWS has determined that nesting for the CSSS sub-population A has ended.

2.If G-3273 is above 6.8 ft-NGVD. no discharges to Northeast Shark River Slough are permitted. However S-333 may discharge up to maximum capacity provided that water can be discharge via S-334 to the South Dade Conveyance system subject to available capacity.

3. Make water supply discharges to the East Coast and ENP-South Dade Conveyance System as needed.

SOURCE: http://my.sfwmd.gov/portal/page/portal/pg_grp_sfwmd_era/portlet_archives_meetings_subtabs/toc_archives/archives/2004_08_26/wca_schedules_082604.pdf.

Suggested Citation:"Appendix D: Regulation Schedule for WCA-3A." National Research Council. 2010. Progress Toward Restoring the Everglades: The Third Biennial Review - 2010. Washington, DC: The National Academies Press. doi: 10.17226/12988.
×
Page 301
Suggested Citation:"Appendix D: Regulation Schedule for WCA-3A." National Research Council. 2010. Progress Toward Restoring the Everglades: The Third Biennial Review - 2010. Washington, DC: The National Academies Press. doi: 10.17226/12988.
×
Page 302
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Although the progress of environmental restoration projects in the Florida Everglades remains slow overall, there have been improvements in the pace of restoration and in the relationship between the federal and state partners during the last two years. However, the importance of several challenges related to water quantity and quality have become clear, highlighting the difficulty in achieving restoration goals for all ecosystem components in all portions of the Everglades.

Progress Toward Restoring the Everglades explores these challenges. The book stresses that rigorous scientific analyses of the tradeoffs between water quality and quantity and between the hydrologic requirements of Everglades features and species are needed to inform future prioritization and funding decisions.

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