Town of Davie. Broward County Water Advisory TAC Presentation. Water Treatment & Water Reclamation Facility Design-Build

Transcription

1 Town of Davie Water Treatment & Water Reclamation Facility Design-Build Broward County Water Advisory TAC Presentation Brian Stitt Senior Project Manager August 16, 2013

2 Project Driver: Growth Significant redevelopment growth projected Regional Activity Center zoning (RAC) State Road 7 Transit Oriented Corridor (TOC) Requires water and wastewater system expansion Community acceptance critical Funding/bonding Resulting rate increases However, staff limitations prevent large program implementation

3 Davie RAC and TOC Development Zones ZONED LAND USE RAC Regional Activity Center TOC State Road 7 Transportation Oriented Corridor Davie Utilities Service Area Remaining Intensity Residential d.u. Commercial 0.5 million s.f. Industrial 1.2 million s.f. Office 1.7 million s.f. Remaining Intensity Residential d.u. Commercial 2.7 million s.f. Industrial 3.4 million s.f. Community 5.7 million s.f. RAC TOC

4 Project Driver: Town of Davie Water Supply Needs & Availability Projections increase Comprehensive plan and water use permit projections Population projections nearly triple (~30,000 to ~90,000) Water demand projections increase (4.4 million gallons per day (MGD) to almost 16 MGD) Water supplies needed for growth and the Regional Water Availability Rule Adopted by SFWMD in 2007 Limits Biscayne aquifer allocations (to max withdrawals any 12 months prior to April 2006) Reduces Davie water supply ~ 1MGD Requires utilities develop alternative water supplies for future demands No Biscayne aquifer allocations for additional needs

5 Existing Davie Water and Wastewater Systems Water System I 3.4 MGD Two 0.3MG Storage Tanks Biscayne Wells Cap gpm each (2) 10-inch (2) 12-inch Water System III 4 MGD Two 2MG Storage Tanks Biscayne Wells Cap gpm each (2) 20-inch (1) 16-inch (1) 18 inch Wastewater System II 5 MGD All Effluent Pumped to City of Hollywood

6 Solution: Progressive Design-Build Project Delivery Stage I Develop water resources master plan to meet growth needs Includes integrated water/reclamation plant, co-located Land acquisition Public outreach and participation Funding structure and rate plan Preliminary design (60%) and permitting Stage II Agree on maximum guaranteed price for final design and construction Final design Construction

7 Project Vision: Integrated Water Treatment and Water Reclamation Facilities Master Plan Vision Proposed Site Boundary Project Site September 2010 Surrounding Land Owners Shown

8 Public Outreach and Participation: Key to Community Acceptance Meetings with adjacent land owners (NSU, UF, BC, Sunforest) Site plan outreach program included 2 public town hall meetings Website developed for updates on construction as well as literature on reuse and water conservation Surrounding Land Owners Shown Presentations to Davie schools water, reuse, and importance of water conservation on

9 Two Stage Design-Build Implementation: Stage I - AECOM and Davie Formal Partners on Project Goals Davie retained and exercised substantial design input and control During design, Davie benefited from early inclusion of AECOM S expertise on constructability, scheduling, and construction costs

10 Two Stage Design-Build Implementation: Stage I - AECOM and Davie Formal Partners on Project Goals Cost estimates developed and refined at design milestones allowed Davie to modify priorities based on overall project budget At 60% design, Davie and AECOM agreed upon a guaranteed maximum price for final design and construction

11 Two Stage Design-Build Implementation: Stage II - AECOM and Davie Partnership Continues Costs developed on an open-book basis using competitive bids solicited from subcontractors, equipment vendors and on materials Open book approach gave Davie transparent access to project costs Approach provided Davie ability to factor quality and price into the selection of subcontractors and vendors

12 Water supply and treatment Design-Build: Scope Potable Water System 6 MGD reverse osmosis water treatment plant Plant expandable to 12 MGD 5 Floridan aquifer supply wells 2 UIC deep wells for RO concentrate Water distribution system improvements

13 Design-Build: Scope Reclamation System Water reclamation 3.5 MGD wastewater reclamation plant, expandable to 6 MGD Irrigation and chiller water reuse Pilot for future indirect potable reuse of highly treated wastewater Wastewater collection improvements Reclaimed water network

14 Site Plan: Project Vision Water Reclamation Tanks Odor Control Water Reclamation Facility 3.5 MGD Administration Building Future Water Tank 2.5 MG Finished Water Tank Water Treatment Facility Reverse Osmosis (RO) 6 MGD (million gallons per day) Pocket Park

15 Construction: Progressive Aerials June September December 2012 Town of Davie Integrated Water Treatment and Water Reclamation Treatment Plant

16 Schematic: Water Supply, Treatment, and Distribution BW Reverse Osmosis Treatment Schematic

17 Proposed Locations: Floridan Reverse Osmosis Production Wells

18 Schematic: Water Reclamation System Membrane Bio-Reactor Treatment Schematic

19 Reclaimed Water: Program and Users Reuse Golf course irrigation program Landscape irrigation Chiller makeup water Water reclamation facility water used internally Toilet flushing Process water

20 Construction: Reverse Osmosis Skids

21 Construction: Water Reclamation Facility

22 Construction: 2.5 MGD Water Tank Installation

23 Construction: Drilling - RO Source Water Production Wells

24 Construction: Drilling - Concentrate Disposal Wells - Deep Injection Wells

25 Broward County Water Advisory TAC Presentation Town of Davie Water Treatment & Water Reclamation Facility Design-Build THANK YOU Brian Stitt Senior Project Manager, AECOM

26 Town of Davie Water Treatment & Water Reclamation Facility Design-Build June 2013 Don Bayler QUESTIONS? Brian Stitt