grand forks regional water treatment plant
TRANSCRIPT
![Page 1: Grand Forks Regional Water Treatment Plant](https://reader031.vdocuments.us/reader031/viewer/2022020701/61f84fe921ec980080343178/html5/thumbnails/1.jpg)
Providing Clean Affordable Drinking Water
North Dakota Water UsersJoint Summer Meetings and Executive Briefing
July 14, 2021
Grand Forks Regional Water Treatment Plant
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CONCEPT PLANNING & INTEGRATED
SYSTEM BUILDOUT
PILOTING/ENGINEERING
PROCESS
Funding & Implementation
COMBINING FOR THE FUTURE OF WATER IN GRAND FORKS
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CONCEPT PLANNING & INTEGRATED SYSTEM BUILDOUT
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Original WTP Site
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Restricted Site Access
Constrained Process Areas
No Expansion Footprint
Security/Safety Concerns
Historical Neighborhood1968
Future Floodwall
1984
1956
Red River
Red Lake River
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1997Major Flood Event
• $7 Million in Flood Recovery at WTP
• $3 Million in Flood Recovery in Distribution System Upgrades
• Demonstrated Need for a New Plan
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Building Around a Unified Concept
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$52 M in investment 2002 - 2012RESIDUALS PONDS
EXISTING RESIDUALS FORCE MAIN
TRANSMISSION MAINS
INTAKE
CLEARWELL & PUMP STATION
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GFWTP Condition Evaluation▷ Identified major challenges at existing facility ▷GFWTP is in poor condition
Technology Pilot Testing▷ Ozone with biological filtration▷ Pretreatment plate settlers▷ Ultrafiltration▷ Reverse osmosis
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1898
HISTORICAL RECENT PAST CURRENT1894 1968 1997 2021
2007
2007-
2014
Grand Forks Regional WTP Technology and Capacity Evaluation▷ Water demand & capacity projections▷ Long-term technology evaluation▷ Facility tours▷ Pilot testing recommendations
2010-
2014
2012 Devils Lake Impacts▷ New and changing water quality
issues
2014
Kepner-Tregoe Analysis▷ Compared 3 Treatment Alts▷ Incorporated Non-Monetary
Considerations into Decision ProcessResulting Hybrid Treatment Approach
2015-
2020Design & Construction of GFRWTP▷ Included Value Engineering to reduce
cost
July 17
2020Regional WTP Operational
2008$2.8 Million in Interim Improvements▷ Extend Useful Life for Long-term
planning
Timeline of WTP Development
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New WTP Design
PILOTING/ENGINEERING PROCESS
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Source Water Issues SOURCE WATERS BLENDED TO OPTIMIZE
WATER QUALITY AND OPERATIONS
• Lower Turbidity• Lower Hardness• Lower Sulfate Content• Higher Organics
CONVENTIONAL
LIME SOFTENING TREATMENT
PLANT
RAW WATER INTAKE
• Higher Turbidity• Higher Hardness• Higher Sulfate Content• Lower Organics
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Kepner-Tregoe Analysis
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Clarify Purpose and Goals
Evaluate Alternatives
Assess Risks & Opinions
Make a Balanced Decision
Engage Stakeholders
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Selected Approach
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GRAND FORKS REGIONAL WATER TREATMENT FACILITY▪ Selected Conventional Lime / Membrane Hybrid Facility ▪ 20 MGD Facility - Expandable to 40 MGD▪ Long-term building footprint – 50-year asset on a 100-year Campus ▪ Industrial Park site to tie into future Economic Development
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FUNDING AND IMPLEMENTATION
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Funding Partnership
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Loss of Federal Participation
Federal/State/Local becomes
State/Local
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Delivery Process
▪ Construction Manager at Risk
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TOTAL BID PACKAGES
55 Allowed for SRF / Non-SRF Bidding
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Local Buy-In & Choice
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• 2017 Voters Enacted a New ½ Cent Sales Tax
• Dedicated to Street Investment & Water Infrastructure
• Funds Portion of Local Cost-Share Debt Service
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RESULTS
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Critical Piece to City-wide Planning
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Grand Forks Regional WTP
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Control Room
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Training/Breakroom Area
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Pretreatment
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Pretreatment
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Softening Basin
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Ozone Generation
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Biological Activated Carbon Gravity Filters
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Ultrafiltration Membrane Basins
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Ultrafiltration Equipment
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Reverse Osmosis Membrane Skids
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Reverse Osmosis Pre-Filters & Pumps
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Thanks!
For more information visit: grandforksgov.com
Regional WTP Tour –tomorrow Starting at 8AM