Feasibility Study for Regional Industrial Wastewater Treatment and - - PowerPoint PPT Presentation

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Feasibility Study for Regional Industrial Wastewater Treatment and - - PowerPoint PPT Presentation

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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 Presenters Name 00.00.00 Introductions Feasibility Study

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Feasibility Study for Regional Industrial Wastewater Treatment and Reuse Facility, Mont Belvieu, Texas

Public Meeting #2 Date: Tuesday, August 9, 2016

00.00.00 Presenter’s Name

Trinity Bay Tabbs Bay

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Agenda

  • Introductions
  • Feasibility Study Report

Review

  • Cost Estimate
  • Path Forward
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Feasibility Study Report Sections

Cedar Bayou

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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

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Project Team (Section 1)

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PARTICIPATING MEMBERS

Future Participants Future Participants

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Project Study Area (Section 1)

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Regional Conditions (Section 2)

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Regional Conditions (Section 2)

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Regional Conditions (Section 2)

  • Regionalization Drivers

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Population Trends Industrial and Domestic Wastewater Treatment Capacity Industrial, Commercial, Residential Growth Region H Water Demands

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Infrastructure Needs & Requirements (Section 3)

  • Key Drivers among Participating Members

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Predictable Water Supply Sources City of Mont Belvieu WW Flow Increases Industrial WW Flow Increases Alternative Water Source for Industry Industries can focus

  • n Core

Business

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Regional Industrial Wastewater Treatment and Reuse Facility (Section 3)

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City of Mt. Belvieu Domestic Sewage Industrial User 1 Industrial User 2 Industrial User 3 Industrial User 4 Future Other LAND ACQUISITION Reuse/Polishing Facility Regional POTW 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 WA S T E WAT E R C O L L E C T I O N Storage/Stormwater Retention Facility Disposal & Discharge

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Possible Site Selection Evaluation Criteria (Section 2)

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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

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Basis of Design

Cedar Bayou

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Basis of Design: Wastewater Influent Quantity (MGD)

(Section 4)

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Dischargers providing WW Influent Current Dry Weather Flow Current Max.

  • Avg. Daily

Flow Estimated Wastewater Flow to IWWTR Plant 2025 (including Stormwater Flow) 5 5.6 17.9 19.23

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Basis of Design for Water Reuse Demand (Section 4)

  • Basis of design 5 MGD of non-potable reuse water
  • Future expansion is a function of wastewater influent

flow rates and customer demand

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Dischargers Providing Wastewater Influent Reuse Water Purchasers Wastewater Quantities Discharged to Proposed IWWTR Facility (MGD) Requested Reuse Water Quantity (MGD) 2016 Estimated Influent Flow Future Flow Estimate (including Storm Water) Dry Weather Flow Max. Avg. Daily Flow 2025 2050 UBO 2075 2025 2050 UBO 2075 5 4 5.6 17.9 19.2 23.7 29.0 11.6 13.8 18.0

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Ambient Water Quality from CWA (Section 4)

  • Preliminary targets for desired quality of reuse water
  • TDS and hardness drive RO treatment process and

O&M

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Parameter Average Concentration TDS 110a Sulfate 10 Chloride 20 Total Hardness 54

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Schematic Site Layout - ~ 40 acres (Section 4)

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Basis of Design: Conveyance, Distribution and Effluent Discharge Lines (Section 4)

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  • 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 Recommended WW Outfall WW Force Main

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ROM Cost Estimate

Cedar Bayou

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  • 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

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Class 4 Cost Estimate for Regional IWWTR System (Section 4)

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  • 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

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Class 4 Cost Estimate for Regional IWWTR System (Section 4)

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Class 4 Cost Estimate for Regional IWWTR System (Section 4)

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Item Description

Estimated Cost 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

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Path Forward Path Forward

Cedar Bayou

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Path Forward - FS Report Review Process

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Task Activity Deliverable Milestone Meeting

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

  • n 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

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  • 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

Path Forward

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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