Trinity Bay Tabbs Bay Feasibility Study for Regional Industrial Wastewater Treatment and Reuse Facility, Mont Belvieu, Texas Public Meeting #2 Date: Tuesday, August 9, 2016 Presenter’s Name 00.00.00
• Introductions • Feasibility Study Report Agenda Review • Cost Estimate • Path Forward 2
Feasibility Study Report Sections Cedar Bayou 3
FS Report Outline • Executive Summary • Section 1: Introduction • Section 2: Regional Conditions • Section 3: Wastewater Treatment Facilities and Requirements • Section 4: Basis of Design • References • Appendices 4
Project Team (Section 1) PARTICIPATING MEMBERS Future Participants Future Participants 5
Project Study Area (Section 1) 6
Regional Conditions (Section 2) 7
Regional Conditions (Section 2) 8
Regional Conditions (Section 2) • Regionalization Drivers Population Region H Industrial, Industrial Trends Water Commercial, and Residential Demands Domestic Growth Wastewater Treatment Capacity 9
Infrastructure Needs & Requirements (Section 3) • Key Drivers among Participating Members City of Mont Industrial Alternative Belvieu WW WW Flow Water Flow Increases Source for Increases Industry Industries Predictable can focus Water on Core Supply Sources Business 10
Regional Industrial Wastewater Treatment and Reuse Facility (Section 3) City of Mt. Belvieu Domestic Sewage LAND Industrial User 1 ACQUISITION C O L L E C T I O N Storage/Stormwater Industrial User 2 Retention Facility Reuse/Polishing Regional POTW Disposal & Facility WA S T E WAT E R Discharge Industrial User 3 Industrial User 4 Future Other B E N E F I C I A L WAT E R R E U S E D I S T R I B U T I O N L I N E 11
Possible Site Selection Evaluation Criteria (Section 2) Hypothetical IWWTR Plant Site A B C D E Environmental Factors Topography Avoidance of salt dome Avoidance of the 100-year flood plain Proximity of tidal receiving waters to locate treated wastewater outfall Anthropogenic Factors Parcel size High priority to sites west of S.H. 146 Avoidance of existing subsurface and surface utilities Collection and distribution line alignment that minimizes impact to residential land owners Proximity to each parcel of participating members Roadway access Availability of easements Land parcels within city limits or ETJ of Mont Belvieu 12
Basis of Design Cedar Bayou 13
Basis of Design: Wastewater Influent Quantity (MGD) (Section 4) Dischargers Current Dry Current Max. Estimated Wastewater Flow providing Weather Avg. Daily to IWWTR Plant 2025 WW Influent Flow Flow (including Stormwater Flow) 5 5.6 17.9 19.23 14
Basis of Design for Water Reuse Demand (Section 4) Wastewater Quantities Discharged to Proposed IWWTR Facility (MGD) Requested Reuse Future Flow Estimate 2016 Estimated Water Influent Flow (including Storm Water) Quantity (MGD) Dischargers Max. Reuse Providing Dry Avg. Wastewater Water Weather Daily UBO UBO Influent Purchasers Flow Flow 2025 2050 2075 2025 2050 2075 5 4 5.6 17.9 19.2 23.7 29.0 11.6 13.8 18.0 • Basis of design 5 MGD of non-potable reuse water • Future expansion is a function of wastewater influent flow rates and customer demand 15
Ambient Water Quality from CWA (Section 4) Parameter Average Concentration 110 a TDS Sulfate 10 Chloride 20 Total Hardness 54 • Preliminary targets for desired quality of reuse water • TDS and hardness drive RO treatment process and O&M 16
Schematic Site Layout - ~ 40 acres (Section 4) 17
Basis of Design: Conveyance, Distribution and Effluent Discharge Lines (Section 4) • Force Main Participating members - pump to force main Tie-in lines to force main from industrial partners –~ 0.65 miles Wastewater conveyance system – ~5.2 miles • Wastewater effluent outfall pipeline – ~4.2 miles • Reuse water - pumped to participating members Reuse water distribution system – ~5.2 miles WW Force Main Recommended WW Outfall 18
ROM Cost Estimate Cedar Bayou 19
Class 4 Cost Estimate for Regional IWWTR System (Section 4) • Wastewater Treatment Cost (-30% to +50%) Wastewater conveyance system Not included – OSSF and City of Mont Belvieu sewer system Outfall line to the Cedar Bayou tidal zone Site improvements Wastewater treatment units Land purchase Engineering, Construction and project management Contingency • Total Estimated Cost ~ Approx. $60,600,000 20
Class 4 Cost Estimate for Regional IWWTR System (Section 4) • Water Reuse Treatment and Distribution Cost (-30% to +50%) Reuse water distribution line Reuse water treatment units Site improvements Land purchase Engineering, Construction and project management Contingency • Total Estimated Cost ~ Approx. $21,300,000 21
Class 4 Cost Estimate for Regional IWWTR System (Section 4) Estimated Cost Item Description Wastewater Treatment Cost $60,600,000 Reuse Water System $21,300,000 Total Estimated Cost $81,900,000 Annual Operation and Maintenance Cost $5,000,000 22
Path Forward Path Forward Cedar Bayou 23
Path Forward - FS Report Review Process Project Schedule - Feasibility Study for Regional Industrial Wastewater Treatment and Reuse Facility, Mont Belvieu, TX May 2016 – November 2016 Task July August September October November 1 2 3 4 1 2 3 4 5 1 2 3 4 1 2 3 4 5 1 2 3 4 Feasibility Study Report Preparation Participating Members Review and Comment on Preliminary Draft Report Issue Public Meeting #2 Announcement; Parsons Revisions to Preliminary Draft Report Public Meeting #2 – Distribute Draft Feasibility Report for Review and Comment Period (TWDB and Stakeholders) Parsons/GCA Revise Draft Feasibility Report Issue Public Meeting #3 Announcement; Distribute Final Feasibility Report to Project Team and TWDB for Review and Comment Revise Final Feasibility Report (if necessary) Public Meeting #3 and Submit Final Feasibility Report to GCA and TWDB Task Activity Deliverable Milestone Meeting 24
Path Forward • Report and slides are available to download from GCA Website: http://www.gcwda.com/news-events/grant-reports/ • Written comments due to Lori Traweek at GCA before September 14, 2016 • Discussions with Participating Members on optimization strategies • Determination of financial viability and develop engineering path forward 25
Lori Traweek GCA 281-226-1130 ltraweek@gcwda.com Keith Ganze, PE 713-871-7163 keith.ganze@parsons.com Mel Vargas 512-719-6821 mel.vargas@parsons.com www.parsons.com 26
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