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McCarty Ranch Extension Water Quality Restoration/Storage Project

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Nearly 9 billion gallons of water will be kept from entering the North Fork of the St. Lucie River annually, upon the completion of the water quality restoration/storage project located at Port St. Lucie McCarty Ranch Extension.

Summary

This water quality restoration/storage project will take approximately 1,871 acres of fallow citrus grove at the City’s McCarty Ranch Extension property (totaling 5,100 acres combined) and convert it to a shallow water storage facility, consisting of 7 reservoirs, capable of receiving water diverted from the C-23 Canal along with capturing an annual average of 53 inches of rain on the property, reducing the need to discharge.

More than 42.3 billion gallons of water flow annually into the North Fork of the St. Lucie River from the C-23 Canal. This project is anticipated to keep approximately 21% of C-23 Canal discharges from entering the North Fork of the St. Lucie River.

The construction of this project is based on the grant funding received. In order to comply with the grant spending guidelines, each area will be complete and operational within 2 years of receiving the corresponding grant funds.

 

Future alternative water supply

The Water Quality Restoration/Storage Project is the precursor to this City’s future alternative water supply. A proposed future surface water treatment plant will be built on this property to treat the water being pumped from the C-23 Canal to drinking water standards. A certain amount of this treated water will be sent out for public consumption and the rest will be stored in deep aquifer storage and recovery wells (ASRs). The stored water will then be recovered and distributed for consumption ensuring that Port St. Lucie is able to meet the water needs of this growing city for generations to come.

Benefits

19,409 acre-ft./6.330 billion gallons of water diverted from the C-23 Canal

  • 7,831 acre-ft./2.554 billion gallons of rainfall and excess water during annual wet season stored
  • 27,240 acre-ft./8.884 billion gallons total will be kept from entering North Fork of St. Lucie River
  • Recharge local water table
  • Remove 89,721 lbs. of Nitrogen and 18,471 lbs. of Phosphorus from the water entering the North Fork of the St. Lucie River annually
  • Reduce discharges from the C-23 Canal into the North Fork of the St. Lucie River by 21%

Budget/Projected cost

$8 million - total includes design, permitting and construction

$180,640 – annual operating costs including fuel, mowing and monitoring

 

Area 1 (Areas 1-6 located in McCarty Ranch Extension)

Size:

206 acres

Water pumped from C-23 Canal:

2,124 acre-ft. of water (692,108,434 gallons)

Annual Reduction in nutrients:

  • Total Phosphorus – 2,020 lbs.
  • Total Nitrogen – 9,813 lbs.
  • Total Suspended Solids (TSS - solids in water that can be trapped by a filter) – 43,291 lbs.

Estimated Cost:

$1,882,325

Estimated Completion Date:

September 2018

Funding Received

 

South Florida Water Management District (SFWMD) Cooperative Grant Funding Program

  • $200,000
  • Funding will be used for construction-related costs through Sept. 2018
  • May 11, 2016 - Grant application submitted
  • September 8, 2016 - SFWMD approved application
  • January 23, 2017 - City Council approved the local government agreement between SFWMD and Port St. Lucie to set the completion date and spending schedule for the grant funds

Florida Department of Environmental Protection (FDEP) FY17 Section 319(h) Grant

  • $425,000
  • Funding will be used for construction-related costs
  • Negotiating agreement with FDEP

Schedule:

February 1, 2017 – Design submitted to SFWMD for permitting
July 17, 2017 – Draft construction bid documents
July 24, 2017 – Legal Dept. review
July 28, 2017 – Advertisement
September 4, 2017 – Bids open
September 11, 2017 – Recommendation of award to Utility Systems
September 13, 2017 – Recommendation of award to Procurement Management Dept.
September 20, 2017 – Agenda package for City Manager
October 9, 2017 – City Council Meeting approval
TBD (based on when agreement is signed by FDEP) – Notice to proceed
September 2018 – Construction complete

 

Area 2

Size:

239 acres

Water pumped from C-23 Canal:

2,496 acre-ft. of water (813,325,166 gallons)

Annual Reduction in nutrients:

  • Total Phosphorus - 2,374 lbs.
  • Total Nitrogen – 11,531 lbs.
  • Total Suspended Solids (TSS - solids in water that can be trapped by a filter) – 50,873 lbs.

Estimated Cost:

$1,803,575

Estimated Completion Date:

Area will be complete and operational within 2 years of receiving grant funds

Grants Pending:

Legislative grant

  • $1,080,000 ($180,000 for design, $900,000 for construction)
  • March 15, 2017 - Representative Gayle Harrell presented appropriation project request for Area 2 funding to the Appropriations Committee
  • June 2017 - Approved by Legislature
  • Waiting for receipt of official notification of approval

Florida Department of Environmental Protection (FDEP) FY18 Section 319(h) Grant

  • $644,020
  • Should we receive the grant, funding will be used for construction-related costs
  • September 2017 – Notified if project is selected by FDEP for submission to the Environmental Protection Agency (EPA) to be considered for the grant
  • September 2018 – Notification of grant funding recipients

 

Area 3

Size:

250 acres

Water pumped from C-23 Canal:

2,602 acre-ft. of water (847,922,441 gallons)

Annual Reduction in nutrients:

  • Total Phosphorus – 2,475 lbs.
  • Total Nitrogen – 12,022 lbs.
  • Total Suspended Solids (TSS - solids in water that can be trapped by a filter) – 53,038 lbs.

Estimated Cost:

$3,154,369

Estimated Completion Date:

Area will be complete and operational within 2 years of receiving grant funds

 

Area 4

Size:

300 acres

Water pumped from C-23 Canal:

3,123 acre-ft. of water (1,017,506,929 gallons)

Annual Reduction in nutrients:

  • Total Phosphorus – 2,970 lbs.
  • Total Nitrogen – 14,426 lbs.
  • Total Suspended Solids (TSS - solids in water that can be trapped by a filter) – 63,645 lbs.

Estimated Cost:

$981,024

Estimated Completion Date:

Area will be complete and operational within 2 years of receiving grant funds

 

Area 5

Size:

49 acres

Water pumped from C-23 Canal:

460 acre-ft. of water (149,891,657 gallons)

Annual Reduction in nutrients:

  • Total Phosphorus - 438 lbs.
  • Total Nitrogen – 2,125 lbs.
  • Total Suspended Solids (TSS - solids in water that can be trapped by a filter) – 9,376 lbs.

Estimated Cost:

$369,770

Estimated Completion Date:

Area will be complete and operational within 2 years of receiving grant funds

 

Area 6

Size:

99 acres

Water pumped from C-23 Canal:

985 acre-ft. of water (320,963,657 gallons)

Annual Reduction in nutrients:

  • Total Phosphorus - 937 lbs.
  • Total Nitrogen – 4,551 lbs.
  • Total Suspended Solids (TSS - solids in water that can be trapped by a filter) – 20,076 lbs.

Estimated Cost:

$747,087

Estimated Completion Date:

Area will be complete and operational within 2 years of receiving grant funds

 

Area 7

Description:

*Area 7 is a “water disbursement” type area that will only hold back rain water. Water from the C-23 Canal will not be pumped into this area.

Size:

730 acres

Water pumped from C-23 Canal:

NA

Annual Reduction in nutrients:

Total Phosphorus - NA

Total Nitrogen – NA

Total Suspended Solids (TSS - solids in water that can be trapped by a filter) – NA

Estimated Cost:

$1,476,111

Estimated Completion Date:

Pending the completion of the McCarty Ranch Water Supply Plan.

 


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