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Feasibility Study for Regional Industrial Wastewater Treatment and Reuse Facility, Mont Belvieu, Texas
Public Meeting #3Date: Wednesday, November 9, 2016
Trinity BayTabbsBay
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Agenda• Introductions
• Feasibility Study Report Summary
• 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
Report Posted at: http://www.gcwda.com/news-events/grant-reports/
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Project Team (Section 1)
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PARTICIPATING MEMBERS
Future ParticipantsFuture 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 on Core
Business
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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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Regional Industrial Wastewater Treatment and Reuse Facility (Section 3)
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City of Mt. BelvieuDomestic Sewage
Industrial User 1
Industrial User 2
Industrial User 3
Industrial User 4
Future Other
LAND
ACQUISITION
Reuse/PolishingFacilityRegional POTW
B E N E F I C I A L W A T E R R E U S E D I S T R I B U T I O N L I N E
WA
ST
EW
AT
ER
CO
LL
EC
TIO
N
Storage/StormwaterRetention Facility
Disposal & Discharge
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Basis of Design
Cedar Bayou
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Basis of Design for WW Treatment Volume & 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 toProposed 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
UBO2075 2025 2050
UBO2075
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
Chloride 20Sulfate 10TDS 110Total 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
Wastewater conveyance system – ~5.2 miles
• Reuse water -pumped to participating members
• Wastewater effluent outfall pipeline –~4.2 miles
SH 146
Recommended WW Outfall
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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 $60,600,000Reuse Water System $21,300,000Total Estimated Cost $81,900,000Annual Operation and Maintenance Cost $5,000,000
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Path Forward
Cedar Bayou
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Preliminary Project Implementation Schedule
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A B C D E F G H I J K L A B C D E F G H I J K L
Planning and Conceptual Design 150
Property and ROW Acquisition 180
Front End Engineering and Design (FEED) 240
Permits 360
Secure Funding 150
Detailed Design 300
Bidding and Procurement 270
Construction and Commissioning 360
Acitivity NameYear 1Duration
(days)Year 2
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Preliminary Project Implementation Schedule
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A B C D E F G H I J K L A B C D E F G H I J K L
Planning and Conceptual Design 150
Property and ROW Acquisition 180
Front End Engineering and Design (FEED) 240
Permits 360
Secure Funding 150
Detailed Design 300
Bidding and Procurement 270
Construction and Commissioning 360
Year 4Acitivity Name Duration
(days)Year 3
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Lori [email protected]
Keith Ganze, PE 713-871-7163 [email protected]
Mel Vargas [email protected]
www.gcwda.comwww.parsons.com