Biosolids Digester Facilities Project (BDFP) Project Update

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1 Biosolids Digester Facilities Project (BDFP) Project Update SFPUC Citizens Advisory Committee March 15, 2016 Carolyn Chiu, Sr. Project Manager

2 Meeting Agenda Present summary of the Biosolids Project Conceptual Engineering Report (CER) Revised Biosolids Project Cost and Schedule Questions 2

Project Objectives Address aging infrastructure Construct new modern, proven and efficient treatment technologies Maintain regulatory compliance Build critical processes with redundant

3 Project Objectives Address aging infrastructure Construct new modern, proven and efficient treatment technologies Maintain regulatory compliance Build critical processes with redundant infrastructure to provide reliability and operational flexibility Improve seismic reliability Beneficially use 100% of Biosolids and Biogas produced Improve odor, noise and visual quality

4 CER Planning Assumptions 2045 design year for flows and loads based on ABAG projections Preferred project site Central Shops, Asphalt Plant and portions of SEP Odor Control - No detectable odor from the biosolids facilities beyond the SEP fence line Energy Recovery Beneficial use of biogas through combined heat and power facilities Class A Biosolids quality end product Maintain existing operation through construction and start-up 4

5 BDFP Project Location 5

6 BDFP Project Site DRAFT FOR DISCUSSIONS PURPOSES 6

7 BDFP CER Process Flow Diagram 7

8 BDFP CER Site Layout 8

9 Key Project Features Add Table here Flow New Facilities (2045) 250 MGD (wet weather) 85 MGD (dry weather) Existing Conditions 250 MGD (wet weather) 85 MGD (dry weather) Solids Loading 280,000 pounds per day 187,000 pounds per day Anaerobic Digesters Biogas Produced 5 digesters 1.66 million gallons each 2 million cubic feet per day Flaring: infrequent 9 digesters 1.8 million gallons each 1.3 million cubic feet per day Flaring: routine Electricity Generated 5 Mega watts 2 Mega watts Biosolids Reused 24,000 dry tons annually 16,000 dry tons (2014 average) Daily Biosolids Truck trips per day ( ) 7-10 per day Biosolids Regulatory Classification Odor Control Class A Designed to limit odors from BDFP to within SEP fenceline Class B SEP Staffing Levels 280 staff 280 staff Does not completely contain odors from biosolids facilities to within SEP fenceline 9

10 Project Construction Construction 5 years starting 2018 Construction staging at three possible locations: Pier 94 Backlands, Greenhouses, 1550 Evans Ave. Construction truck trips: Typical: 50 to 100 trucks per day Peak: up to 200 round trips per day (~4 months) Construction Period: Typical: Mon.- Fri, 7 am - 3 pm; occasional Saturday Peak: Mon.- Sat., 7 am to 11 pm (~1 year)

11 Southeast Plant with new BDFP 11

12 PROJECT BUDGET AND SCHEDULE 12

13 BDFP Proposed SSIP Baseline Budget SSIP Baseline March 2016 $ millions ** Base Bid Construction Cost $ 886 Total Construction Cost $ 951 Project Delivery/Other Costs $ 325 Total Project Costs $1,276 ** Planning level cost estimate AACE Class 4 with accuracy -30% to +50% 13

14 EIR/CEQA Schedule Environmental Review June 2015 Fall 2017 Notice of Preparation (NOP) June 2015 Scoping Meeting July 2015 Draft EIR Fall 2016 Final EIR Fall 2017 SHPO Memorandum of Agreement Fall

15 BDFP Project Schedule January 2016 Phase Start Finish Planning January 2013 February 2016 Environmental Review June 2015 November 2017 Design January 2016 June % Design January 2016 November % Design November 2016 June % & 100% June 2017 June 2018 CMGC Notice-to-Proceed October 2016 Site Control Asphalt Plant September 2017 Central Shops August 2018 Construction August 2018 May 2024 Substantial Completion August 2023 Final Completion May 2024 Start-Up / Process Stabilization August 2023 May

16 QUESTIONS 16

17 SEP New Headworks (Grit) Replacement Sewer System Improvement Program March 15, 2016 Citizens Advisory Committee (CAC) Presentation Jignesh Desai Project Manager

18 Agenda Project Need Project Objective and Levels of Service SEP Site Layout Environmental Project Budget and Schedule Discussion / Questions Scope of Work Site Preparation and Demolition of old 011 Headworks Bruce Flynn Pump Station Improvements Main Headworks Facility with Odor Control Structure Staging Areas Project Delivery Method 18

Inefficient screening; lack of handling facilities

19 Project Need Upgrades/Replacement needed to address: Ineffective grit removal; downstream process impacts Inefficient screening; lack of handling facilities (washing/compacting) Odors Aging infrastructure and equipment Seismic vulnerability 19

Project Objective / Level of Service Build a new Headworks facility to provide treatment and handling of the influent wastewater flow to meet the permitted capacity of 250 MGD.

20 Project Objective / Level of Service Build a new Headworks facility to provide treatment and handling of the influent wastewater flow to meet the permitted capacity of 250 MGD. Build critical processes with redundant infrastructure to provide reliability and operational flexibility. Design the new Headworks facility to withstand magnitude 7.8 earthquake on the San Andreas Fault and a magnitude 7.1 earthquake on the Hayward Fault. Maximize the control of odors within the treatment facility. Protect downstream process/equipment. Odor Control Structure Example of Rectangular Bioscrubbers 20

21 SOUTHEAST PLANT SITE LAYOUT 21

22 Southeast Aerial Map 22

23 Rankin Street Quint Street Project Areas N Bruce Flynn PS Evans Avenue ICS/ SELS 011 Headworks 012 Headwork s Influent Control Structure & Southeast Lift Station

24 SCOPE OF WORK 24

25 Project Elements Overview Site Preparation and Demolition of old Headworks Bruce Flynn Pump Station Improvements New Headworks Facility with Odor Control Structure 25

Rankin Street Quint Street Site Preparation ICS/ SELS Evans Avenue 011 Headworks Site Preparation and Demolition of old 011 Headworks Construct 78 pipe to bypass

26 Rankin Street Quint Street Site Preparation ICS/ SELS Evans Avenue 011 Headworks Site Preparation and Demolition of old 011 Headworks Construct 78 pipe to bypass old 011 Headworks for influent flows above 150 MGD Modify primary sludge pipelines at SEP 040/041 and SEP 042 Demolish old 011 Headworks with SELS and ICS intact

pumps, replacing the inlet gates, modifying screening system, replacement of odor control system and providing interconnection

27 Rankin Street Quint Street Bruce Flynn Pump Station Improvements Bruce Flynn PS Davidson Avenue Convert station from wetweather to all-weather operation Work includes: Sewer Diversions ICS/ SELS Evans Avenue Various Mechanical upgrades include replacing the pumps, replacing the inlet gates, modifying screening system, replacement of odor control system and providing interconnection between the two existing pump wet wells. Modify sewer connections in the surrounding streets to divert flow from SELS and ICS to Bruce Flynn

Rankin Street Quint Street New Headworks Facility Sewer Diversions Bruce Flynn PS Odor ICS/ Control SELS Evans Avenue 011 Headworks New Influent Junction

28 Rankin Street Quint Street New Headworks Facility Sewer Diversions Bruce Flynn PS Odor ICS/ Control SELS Evans Avenue 011 Headworks New Influent Junction Structure (replaces old ICS) New Fine Screens and Screening Handlings New Grit Removal and Grit Handling systems Odor Control Structure Primary Influent Distribution Area

29 C New Headworks Facility (cont d) Influent Junction Structure Headwor ks Electrical Structure No. 1 Substati on No. 1 C C Headworks Odor Control Structure C Bar Screen Area Headworks Electrical Structure No. 2 Screenings Handling Area Grit Tank Area Grit Handling Area Primary Influent Distribution Area (PIDA*) Primary Influent Junction Box 29

New Headworks Facility (cont d) Grit Characterization

MGD Pista360 Unit Grit Characterization/Loading

30 New Headworks Facility (cont d) Grit Characterization and Grit Pilot Feb 2014 Mar 2015 Apr 2015 Dec MGD Pista360 Unit Grit Characterization/Loading Parameter Flow (MGD Grit Load by Flow (dry Ashed Grit lb / MG) Dry Weather Average MGD Headcell Unit Wet Weather Average Wet Weather Peak Flow

31 PROJECT STAGING 31

32 Possible Staging Areas 32

33 PROJECT DELIVERY METHOD 33

34 Construction Manager / General Contractor (CM/GC) Pre-Construction Services NTP for CM/GC Firm is anticipated shortly after 35% design phase Firm to provide pre-construction services such as: General Coordination Constructability Review of Construction Documents Cost Estimates Value Engineering Construction scheduling and sequencing Preparing and advertising RFQs and RFPs for trade / sub packages 34

35 Construction Manager / General Contractor (CM/GC) Construction Services Self-performing specific trade packages Management of subcontractors, manufacturers and vendors Submittals and RFIs Schedule development and updates Coordinating facility shutdowns Start-up testing Site management 35

36 ENVIRONMENTAL 36

37 CEQA CEQA Document : Mitigated Negative Declaration (MND) CEQA Schedule: Neighborhood Notice Spring 2016 Preliminary MND Fall 2016 Final MND January 2017 Anticipated Permits: None 37

38 BUDGET AND SCHEDULE 38

39 Schedule/Budget PHASE START FORCAST FINISH Project Management March 2013 February 2024 Planning March 2013 January 2016 Environmental September 2015 January 2017 Design November 2015 January 2018 Construction January 2017 August 2022 Construction Management January 2017 August 2022 Closeout September 2022 March 2023 TOTAL BUDGET $358,630,542 39

40 QUESTIONS 40

City Of London Environmental & Engineering Services Department Wastewater Treatment Operations

City Of London Environmental & Engineering Services Department Wastewater Treatment Operations Greenway Pollution Control Centre 2014 Annual Report February 2015 Page 1 of 87 Summary This annual report