www.mymanatee.org
Manatee County Government Administrative Building First Floor - Chambers May 11, 2017 - 9:00 am
May 11, 2017 - Planning Commission
Agenda Item #12


Subject
2017 Water Supply Facilities Work Plan Update

Briefings
Briefing Provided Upon Request

Contact and/or Presenter Information
Mark Simpson, Water Division Manager, X-5258


Action Requested

Recommendation of approval of 2017 Water Supply Facilities Work Plan (WSFWP) Update to comply with Section 163.3177 (6) (c), F.S. which requires local governments to adopt a 10-year WSFWP within 18 months after the approval of the SWFWMD Regional Water Supply Plan (RWSP).



Enabling/Regulating Authority
Section 163.3177 (6) (c), F.S. which requires local governments to adopt a 10-year WSFWP within 18 months after the approval of the SWFWMD Regional Water Supply Plan. The latest Regional Water Supply Plan was approved in November 2015, making the deadline to meet this requirement May 2017

Background Discussion

The Southwest Florida Water Management District (SWFWMD) updates the Regional Water Supply Plan (RWSP) approximately every 5 years. It contains of an assessment of projected water demands and potential sources to meet those demands for a 20-year planning period. Florida Statutes require local governments to notify SWFWMD as to which water supply options identified in the RWSP they intend to develop, and to adopt a 10-year Water Supply Facilities Work Plan to accomplish water supply development to meet projected need for that local jurisdiction.

Manatee County BoCC adopted a 10-year WSFWP in May 2008 following the SWFWMD RWSP approval in December 2006. Potable water demand in 2006 was approximately 45.5 million gallons per day (mgd) with a projected demand (20-yr) of 61.9 mgd in 2030. The 2008 WSFWP identified and prioritized the water supply facilities and sources to meet those needs. They included new supplies beyond exisitng capacity in 2014.

As the 2008 WSFWP was being adopted, the housing market crashed and the “Great Recession” was taking hold. Water demands fell to levels commensurate with the late 1990s (approximately 37 mgd), and projected future water demands decreased significantly such that an update to the WSFWP, delaying the need for new supply development, was approved by the BoCC in January 2009.

 In September 2012, the BoCC adopted the 2012 WSFWP Update based on projections which showed an expected demand of 53.6 mgd in 2035. Existing capacity was 52.8 mgd, and though no new capacity was needed in the 10-year period (thru 2022), additional capacity of 3.0 mgd at the Buffalo Creek location was planned in 2022 to increase reliability, provide north county redundancy, diversify sources and meet 20-yr demands. The 2012 WSFWP also included reinvestment in, enhancement of and replacement of facilities within the potable and reclaimed water systems to meet future demands and to maintain concurrency with level of service requirements, and was synchronized with the %-year Capital Improvement Program.

Demand projections based on the latest population projections (January 2017) show an expected 2027 demand of 45.35 mgd and an expected 2037 demand of 53.25 mgd. In 2016, 3.1 mgd additional groundwater withdrawal as conjunctive use was granted to the East County Wellfield by SWFWMD using the ‘net benefit’ process of retiring other groundwater withdrawals and providing reclaimed water instead. A special condition of the consumptive use permit allows that quantity to be converted to additional supply when demands show the need. We have shown that conversion to occur in 2022, the 10-yr milestone of our 20-yr consolidated permit, which will make total available capacity to be 55.95 mgd. This allows Manatee County to delay the $35M investment in a brackish water RO facility at Buffalo Creek to later years and instead get greater use of existing assets. The 2017 WSFWP continues to include the reinvestment in infrastructure seen in the 2012 WSFWP and remains synchronized with the 5-year CIP.

With the adoption of this WSFWP, specified dates in the Comp Plan will need to be updated to reflect this current 2017 WSFWP.


County Attorney Review
Not Reviewed (No apparent legal issues)

Explanation of Other


Reviewing Attorney
N/A

Instructions to Board Records
None

Cost and Funds Source Account Number and Name
Utility Rates

Amount and Frequency of Recurring Costs
As described in Plan/CIP


Attachment:  2017 WSFWP Update - Final.pdf