grand forks regional water treatment plant

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

CONCEPT PLANNING & INTEGRATED SYSTEM BUILDOUT

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

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

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

New WTP Design

PILOTING/ENGINEERING PROCESS

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

Kepner-Tregoe Analysis

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Clarify Purpose and Goals

Evaluate Alternatives

Assess Risks & Opinions

Make a Balanced Decision

Engage Stakeholders

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

FUNDING AND IMPLEMENTATION

Funding Partnership

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Loss of Federal Participation

Federal/State/Local becomes

State/Local

Delivery Process

▪ Construction Manager at Risk

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TOTAL BID PACKAGES

55 Allowed for SRF / Non-SRF Bidding

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

RESULTS

Critical Piece to City-wide Planning

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Grand Forks Regional WTP

Control Room

Training/Breakroom Area

Pretreatment

Pretreatment

Softening Basin

Ozone Generation

Biological Activated Carbon Gravity Filters

Ultrafiltration Membrane Basins

Ultrafiltration Equipment

Reverse Osmosis Membrane Skids

Reverse Osmosis Pre-Filters & Pumps

Thanks!

For more information visit: grandforksgov.com

Regional WTP Tour –tomorrow Starting at 8AM