TOLEDO COLLINS PARK WTP 40 MGD PLANT ADDITION DESIGN CONSIDERATIONS AND CHALLENGES

Transcription

1 TOLEDO COLLINS PARK WTP 40 MGD PLANT ADDITION DESIGN CONSIDERATIONS AND CHALLENGES Kurt Smith, PE & Jack Kane, PE - ARCADIS Jim Donnell, PE - City of Toledo September 28, 2017

2 Collins Park WTP 40 MGD Plant Addition Purpose: h 20 MGD Redundancy - Allow basin maintenance year round yt 20 MGD Capacity - Address OEPA significant deficiency

3 Collins Park WTP Process Flow Schematic Kurt Smith Project Manager

4 Collins Park WTP 40 MGD Plant Addition DESIGN CONSIDERATIONS Pumped rapid mix Flocculation Sedimentation Effluent troughs Algae skimmers Recarbonation Ozone connection GAC Filters CHALLENGES Tight site constraints Other contractors Utility relocations Security Maintenance of plant operations (MOPO) Interconnections to existing East Plant Preservation of Lagoon E COST SAVINGS MEASURES Sedimentation basin size reduction 3D CAD benefits Design Construction Post Construction Prequalification of contractors Low bids

5 VERTICAL RAPID MIXER ALTERNATIVE RAPID MIX PUMP

6 WATER CHAMP RAPID MIX ALTERNATIVE

7 PUMPED RAPID MIXING SYSTEM Rapid mix pump rated for 2,000 gpm at 37 head with 30 Hp motor 10 DISCHARGE 12 SUCTION East Plant RAPID MIX PUMP

8 PUMPED RAPID MIXING SYSTEM East & West Plant rapid mix channels rated for 80 MGD each OVER BAFFLE UNDER BAFFLE ALUM FEED 8 X 15.5 CHANNEL (TYPICAL)

9 PUMPED RAPID MIXING SYSTEM Mixing energy exceeds 10-States Standards G-value of 750 fps/ft 10 DISCHARGE PIPE ALUM FEED INJECTION DIFFUSER NOZZLE

10 PUMPED RAPID MIXING SYSTEM RAPID MIX PUMP West Plant

11 FLOCCULATION BASINS BASIN 8 FLOC BASIN 10 DISCHARGE PIPE BASIN 7 FLOC DRIVES SODA ASH SPLITTER BOX LIME SLURRY SPLITTER BOX

12 FLOCCULATION BASINS 10 DISCHARGE PIPE ALUM FEED Basins 1 6 Upgrades Equipment interchangeable with Basins 7 & 8 INJECTION DIFFUSER NOZZLE

13 SEDIMENTATION BASINS SLUDGE DRAGS 10 DISCHARGE PIPE Basins 1 6 Upgrades Equipment interchangeable with Basins 7 & 8 SLUDGE CROSS COLLECTOR

14 EFFLUENT LAUNDER BUILDING 10 DISCHARGE PIPE EFFLUENT SUBMERGED ORIFICE INJECTION WEIRS DIFFUSER (TYPICAL) NOZZLE

15 EFFLUENT LAUNDER BUILDING 10 DISCHARGE PIPE FLOATABLES ALGAE SKIMMERS (TYPICAL) INJECTION DIFFUSER NOZZLE

16 RECARBONATION BASINS 10 DISCHARGE PIPE CO2 DIFFUSERS (TYPICAL) INJECTION DIFFUSER NOZZLE

17 OZONE FACILITY CONNECTION 10 DISCHARGE PIPE SETTLED WATER CONDUIT GATES FOR OZONE EFFLUENT CONDUIT KNOCKOUT WALL FOR OZONE INFLUENT CONDUIT

18 Filter Media Pilot 12 Sand Effective size mm 24 GAC Effective size mm GAC Filters Underdrains Leopold XA IMS 200 caps INJECTION DIFFUSER NOZZLE

19 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

20 SITE CONSTRAINTS OTHER CONTRACTORS Probable Project Costs 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

21 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 Basin 7 & Basin 8 Operational by April 2020 Ozone Facility Operational by July 2020

22 SITE CONSTRAINTS OTHER CONTRACTORS Additional Concurrent Projects CPEU Operational by Sept 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

23 SITE CONSTRAINTS SECURITY & SOLUTIONS

24 SITE CONSTRAINTS SECURITY & SOLUTIONS

25 MAINTENANCE OF PLANT OPERATIONS (MOPO) Kurt Smith Project Manager

26 PRESERVATION OF LAGOON E Kurt Smith Project Manager

27 PRESERVATION OF LAGOON E & UTILITY RELOCATIONS BASIN 8 50 FEET Kurt Smith Project Manager LIMITS OF EXISTING LAGOON E 2:1 SLOPE STRUCTURAL EMBANKMENT

28 PRESERVATION OF LAGOON E Kurt Smith Project Manager EXISTING LAGOON CAPACITY REDUCED FROM 41.8 MG TO 33 MG OR 21% REDUCTION

29 SEDIMENTATION BASIN SIZE REDUCTION 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 Kurt Smith Project Manager Cost Savings Benefits Detention time reduced from 4 hours to 3 hours ~ $5.8 M savings Provides space savings for new Ozone Facility SPACE SAVINGS FOR OZONE FACILITY

30 DESIGN 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 3D CAD BENEFITS Kurt Smith Project Manager

31 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 Kurt Smith- Creates a safer workplace Project Manager - Construction sequencing

32 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 Kurt Smith Project Manager

33 PREQUALIFICATION OF CONTRACTORS Prequalification Process - Received 6 proposals - Short listed to 4 Contractors to bid Evaluation Process - Bonding - Verifiable statement confirming financial wherewithal - Planned approach Kurt Smith to the project - ReferencesProject Manager - Construction Experience - Water/wastewater projects - Large excavation - Workforce & Workload - Corporate Health, Safety & Environmental Program Control Quality and Risk Reduction

34 LOW BIDS CONSTRUCTION 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 Kurt Smith $36,337,865 $33,319,259 Project Manager 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%

35 Thank you!

36 3D CAD BENEFITS Kurt Smith Project Manager

37 Collins Park WTP 40 MGD Plant Addition DESIGN CONSIDERATIONS Pumped rapid mix Flocculation Sedimentation Effluent troughs Algae skimmers Recarbonation Ozone connection GAC Filters CHALLENGES Tight site constraints Other contractors Utility relocations Security Maintenance of plant operations Interconnections to existing East Plant Preservation of Lagoon E COST SAVINGS MEASURES Sedimentation basin size reduction 3D CAD benefits Design Construction Post-construction Pre-qualification of contractors Low bids

38 Collins Park WTP 40 MGD Plant Addition DESIGN CONSIDERATIONS Pumped rapid mix Flocculation Sedimentation Effluent troughs Algae skimmers Recarbonation Ozone connection GAC Filters CHALLENGES Tight site constraints Other contractors Utility relocations Security Maintenance of plant operations Interconnections to existing East Plant Preservation of Lagoon E COST SAVINGS MEASURES Sedimentation basin size reduction 3D CAD benefits Design Construction Post-construction Pre-qualification of contractors Low bids

39 Title Text DESIGN PHASE

40 Title Text

41 Title Text

42 Title Text COST SAVINGS SDFD SDFDSF SDFSDF DSFSDF

43 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 Basin 7 & Basin 8 Operational by April 2020

44 SITE CONSTRAINTS OTHER CONTRACTORS Probable Project Costs Ozone Facility $37,200,000 Schedule Ozone Facility Operational by July 2020

45 Title Text

46 Title Text

47 Kurt Smith Project Manager

48 Kurt Smith Project Manager Probable Project Costs Basin 7 $48,700,000 Basin 8 $43,400,000 TOTAL $92,100,000

49 Logo protection zone Template Layout Tips Paragraph level First level bullet Second level bullet Third level bullet To turn the guides on and off: right click > grids and guides > guides or Alt + F9. To get bullets use Increase list level or Shift + Alt + The grid is laid out in six columns and is designed to provide a flexible layout while still allowing for breathing room and white space. Text and images should not extend past blue lines. (Full size images would be an exception)

50 Guidance Always ensure that if you are presented with an Enable Content and / or Enable Editing option/s on opening a document, that you DO enable the content and / or editing by clicking on the buttons presented There are sixteen layouts in each master (one with logo, and another without) to choose from to suit your needs and help keep your presentation consistent Incorporating slides from another presentation: Click on New Slide on the Slides ribbon group, under the Home ribbon tab and scroll down and choose the layout you want to use Copy your slides (Ctrl + C) and insert a new blank slide layout in your new presentation and paste your slides (Ctrl + V) into your new presentation (not behind any of the other layouts, especially not behind the title or divider layouts) The small Paste clipboard icon will appear at the bottom of the slides you have copied in, click on the arrow on the icon and choose use destination theme, this will ensure that your slides will use the correct colour pallet throughout the document You may need to correct some colour combinations, any other anomalies, and choose the layout design you require for each slide i.e., Title and Content, Title only, Blank etc and a certain amount of tidying will normally be required You can also use the Keep Source Formatting option but ensure that you change the colour palette for the slides you have copied in to our Arcadis Brand palette. If you are still having problems try opening a blank new PowerPoint document (Ctrl +N) and paste your slides into this before pasting it into the new template Alternatively, you may need to copy each of the elements of the design into the new template individually using the Paste Special / Unformatted Text option and reapply formatting in the new template this may be long winded, but can often be safer and ensures more consistent application of the branding Kickers / takeaways should be short, sharp and to the point, the text size is set and should not be made smaller if you do not need to use a kicker, please just delete the text box