TOLEDO COLLINS PARK WTP 40 MGD PLANT …...presentation (not behind any of the other layouts, especially not behind the title or divider layouts) • The small ‘Paste’ clipboard

TOLEDO COLLINS PARK WTP 40 MGD PLANT ADDITION DESIGN CONSIDERATIONS AND CHALLENGESKurt Smith, PE & Jack Kane, PE - ARCADIS

Jim Donnell, PE - City of ToledoSeptember 28, 2017

© Arcadis 2017

Purpose:h

20 MGD Redundancy- Allow basin maintenance year round

yt

20 MGD Capacity- Address OEPA significant deficiency

Collins Park WTP – 40 MGD Plant Addition

© Arcadis 2017

Kurt SmithProject Manager

Collins Park WTP – Process Flow Schematic

© Arcadis 2017

DES

IGN

CO

NSI

DER

ATIO

NS

• Pumped rapid mix

• Flocculation

• Sedimentation

• Effluent troughs

• Algae skimmers

• Recarbonation

• Ozone connection

• GAC Filters

CH

ALL

ENG

ES • Tight site constraints• Other contractors• Utility relocations• Security

• Maintenance of plant operations (MOPO)• Interconnections to

existing East Plant

• Preservation of Lagoon E

CO

ST S

AVIN

GS

MEA

SUR

ES • Sedimentation basin size reduction

• 3D CAD benefits• Design• Construction• Post Construction

• Prequalification of contractors

• Low bids


© Arcadis 2017

VERTICAL RAPID MIXER ALTERNATIVE

RAPID MIX PUMP

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WATER CHAMP RAPID MIX ALTERNATIVE

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PUMPED RAPID MIXING SYSTEM

10” DISCHARGE

12” SUCTION

RAPID MIX PUMP

• Rapid mix pump rated for 2,000 gpm at 37’ head with 30 Hp motor

East Plant

© Arcadis 2017

PUMPED RAPID MIXING SYSTEM• East & West Plant rapid mix channels rated for 80 MGD each

OVER BAFFLE

UNDER BAFFLE

8’ X 15.5’ CHANNEL (TYPICAL)

ALUM FEED

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PUMPED RAPID MIXING SYSTEM• Mixing energy exceeds 10-States Standards G-value of 750 fps/ft

ALUM FEED10” DISCHARGE PIPE

INJECTION DIFFUSER NOZZLE

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PUMPED RAPID MIXING SYSTEM

RAPID MIX PUMP

West Plant

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FLOCCULATION BASINS

10” DISCHARGE PIPE

BASIN 7 FLOC DRIVES

LIME SLURRY SPLITTER BOX

SODA ASH SPLITTER BOX

BASIN 8FLOC BASIN

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FLOCCULATION BASINS

ALUM FEED10” DISCHARGE PIPE


Basins 1 – 6 Upgrades• Equipment

interchangeable with Basins 7 & 8

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SEDIMENTATION BASINS


Basins 1 – 6 Upgrades• Equipment interchangeable

with Basins 7 & 8

SLUDGE CROSS COLLECTOR

SLUDGE DRAGS

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EFFLUENT LAUNDER BUILDING



EFFLUENT SUBMERGED

ORIFICE WEIRS (TYPICAL)

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EFFLUENT LAUNDER BUILDING



FLOATABLES ALGAE SKIMMERS

(TYPICAL)

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RECARBONATION BASINS



CO2 DIFFUSERS(TYPICAL)

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OZONE FACILITY CONNECTION


KNOCKOUT WALL FOR OZONE INFLUENT CONDUIT

SETTLED WATER CONDUIT GATES FOR

OZONE EFFLUENT CONDUIT

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GAC Filters


Filter Media Pilot• 12” Sand

Effective size• 0.45 – 0.55 mm

• 24” GAC Effective size

• 1.0 – 1.2 mm

Underdrains• Leopold XA

– IMS 200 caps

© Arcadis 2017

SITE CONSTRAINTS – OTHER CONTRACTORS• Probable Project Costs

– Basin 7 $ 37,200,000– Basin 8 $ 33,400,000– TOTAL $ 70,600,000

• Schedule Basin 7 & Basin 8

• Operational by April 2020

© Arcadis 2017


– Basin 7 $ 37,200,000– Basin 8 $ 33,400,000

• Other Concurrent Projects– CPEU $ 17,000,000

• Schedules Basin 7 & Basin 8

• Operational by April 2020 CPEU

• Operational by Sept. 2018

© Arcadis 2017


– Basin 7 $ 37,200,000– Basin 8 $ 33,400,000

• Other Concurrent Projects– CPEU $ 17,000,000– Ozone $ 40,000,000– TOTAL $127,600,000

• Schedules CPEU

• Operational by Sept. 2018 Basin 7 & Basin 8

• Operational by April 2020 Ozone Facility

• Operational by July 2020

© Arcadis 2017

SITE CONSTRAINTS – OTHER CONTRACTORS• Additional Concurrent Projects

CPEU• Operational by Sept. 2018

Basin 7 & Basin 8• Operational by April 2020

Ozone Facility• Operational by July 2020

– Lagoon E Spent Lime Removal• Completion by April 2018

– Maintenance Facility• Completion by December 2018

– Basins 1 – 6 Upgrades• Start Construction Jan. 2020

© Arcadis 2017

SITE CONSTRAINTS – SECURITY & SOLUTIONS

© Arcadis 2017

SITE CONSTRAINTS – SECURITY & SOLUTIONS

© Arcadis 2017


MAINTENANCE OF PLANT OPERATIONS (MOPO)

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PRESERVATION OF LAGOON E

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PRESERVATION OF LAGOON E & UTILITY RELOCATIONS

LIMITS OF EXISTING LAGOON E 2:1 SLOPE STRUCTURAL EMBANKMENT

BASIN 8 50 FEET

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PRESERVATION OF LAGOON E

EXISTING LAGOON CAPACITY

REDUCED FROM 41.8 MG TO 33 MG

OR 21% REDUCTION

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SEDIMENTATION BASIN SIZE REDUCTION

SPACE SAVINGS

FOR OZONE FACILITY

• Negotiations with OEPA– Based on historic plant

performance– Based on old design text

books 4 hours without sludge equipment

– Based on conservatism of 10-States Standards

• Cost Savings Benefits– Detention time reduced from

4 hours to 3 hours• ~ $5.8 M savings

– Provides space savings for new Ozone Facility

© Arcadis 2017


3D CAD BENEFITSDESIGN PHASE- Excellent 3D visualization- Interactive tool with Owner

- Design progress meetings- Freedom Navisworks software (for the novice)

- Clash detection to:- Improve quality of bidding documents- Minimize change orders

- Bidding Phase- Provide to Contractors

© Arcadis 2017


3D CAD BENEFITS CONSTRUCTION PHASE (CONTRACTOR)

- Quicker orientation of project estimators, managers & trades

- More efficient coordination of trade disciplines to resolves conflicts

- Decreases errors and corrections in field

- Higher reliability of expected field conditions and plan drawings

- Allows for more prefabrication offsite with higher quality and lower cost

- Reduce RFI’s and expedite construction schedule

- Creates a safer workplace

- Construction sequencing

© Arcadis 2017


3D CAD BENEFITS POST CONSTRUCTION

- Develop 3D views for O&M Manuals

- CMMS (computerized maintenance management system)

- Add asset information to model for O&M/asset management

- Freedom Navisworks software (for the novice)- Interactive tool for operator and safety training

© Arcadis 2017


PREQUALIFICATION OF CONTRACTORSPrequalification Process- Received 6 proposals- Short listed to 4 Contractors to bid

Evaluation Process- Bonding- Verifiable statement confirming financial wherewithal- Planned approach to the project- References- Construction Experience

- Water/wastewater projects- Large excavation

- Workforce & Workload- Corporate Health, Safety & Environmental Program

Control Quality and Risk Reduction

© Arcadis 2017


LOW BIDSCONSTRUCTION BID RESULTS

BASIN 7 AND BASIN 8 PROJECTS

Description Basin 7 Basin 8

Engineer’s Estimate $37,740,000 $32,820,000

Average of Bids $36,337,865 $33,319,259

Low Bid $28,387,750 $26,694,200

Cost Below Average of Bids $7,950,115 $6,625,059

% Below Average of Bids 21.9% 19.9%

© Arcadis 2017

Thank you!

© Arcadis 2017


3D CAD BENEFITS

© Arcadis 2017

DES

IGN

CO

NSI

DER

ATIO

NS


• Flocculation

• Sedimentation


• Algae skimmers

• Recarbonation


• GAC Filters

CH

ALL

ENG


• Maintenance of plant operations• Interconnections to

existing East Plant


CO

ST S

AVIN

GS

MEA

SUR


• 3D CAD benefits• Design• Construction• Post-construction

• Pre-qualification of contractors

• Low bids


© Arcadis 2017

DES

IGN

CO

NSI

DER

ATIO

NS


• Flocculation

• Sedimentation


• Algae skimmers

• Recarbonation


• GAC Filters

CH

ALL

ENG


• Maintenance of plant operations• Interconnections to

existing East Plant


CO

ST S

AVIN

GS

MEA

SUR


• 3D CAD benefits• Design• Construction• Post-construction

• Pre-qualification of contractors

• Low bids


© Arcadis 2017

TitleText DESIGN PHASE

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TitleText

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Title

Text

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TitleText

COST SAVINGSSDFD

SDFDSFSDFSDFDSFSDF

© Arcadis 2017

SITE CONSTRAINTS – OTHER CONTRACTORS

• Probable Project Costs– Basin 7 $ 37,200,000– Basin 8 $ 33,400,000

• Other Concurrent Projects– CPEU $ 17,000,000– Ozone $ 40,000,000– TOTAL $127,600,000

• Schedules CPEU

• Operational by Sept. 2018 Basin 7 & Basin 8

• Operational by April 2020

© Arcadis 2017

SITE CONSTRAINTS – OTHER CONTRACTORS

• Schedule Ozone Facility

• Operational by July 2020

• Probable Project Costs– Ozone Facility $37,200,000

© Arcadis 2017

TitleText

© Arcadis 2017

TitleText

© Arcadis 2017


© Arcadis 2017


• Probable Project Costs– Basin 7 $48,700,000– Basin 8 $43,400,000– TOTAL $92,100,000

© Arcadis 2017

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TOLEDO COLLINS PARK WTP 40 MGD PLANT …...presentation (not behind any of the other layouts, especially not behind the title or divider layouts) • The small ‘Paste’ clipboard