Engineering and Operations Committee Item 6a December 10, 2018

E&O Committee Item 6a Slide 2 December 10, 2018

Demonstration project

Status of construction

Near-term regulatory testing

Potential future testing for process optimization & development of design criteria

Full-scale program planning

E&O Committee Item 6a Slide 3 June 11, 2018

MBR – Membrane

Modules

Reverse Osmosis

Chemical Feed Systems UV Light/Advanced Oxidation Process

MBR – Aerobic and Anoxic

Tanks

E&O Committee Item 6a Slide 4 December 10, 2018

Contract amount: $13,856,000

Capital budget: $17M

2-yr O&M budget: $9.8M

Construction contract approximately 85% complete

Construction complete: December 2018

Start-up and commissioning: Jan/Feb 2019

E&O Committee Item 6a Slide 5 December 10, 2018

Electrical

Building

Chemical

Storage &

Unloading

RO & UV/AOP

Equipment

MBR

Aeration

& Anoxic

Basins

E&O Committee Item 6a Slide 6 December 10, 2018

Outreach

Trailer Pad

MBR

Systems

Chemical

Storage &

Unloading

Operations

Trailer

Substation

RO &

UV/AOP

Equipment

E&O Committee Item 6a Slide 7 December 10, 2018

Membrane

Modules

Aeration

Blowers

Membrane

Scour Blower

Anoxic Basin

Aeration Basin

Drum Screen

E&O Committee Item 6a Slide 8 December 10, 2018

MBR-1

(GE/Suez)

MBR-2

(Evoqua)

E&O Committee Item 6a Slide 9 December 10, 2018

Motor Control Center

Chemical Feed Skids

RO Skid

E&O Committee Item 6a Slide 10 December 10, 2018

Air Diffuser

Bubble

Testing

E&O Committee Item 6a Slide 11 December 10, 2018

Provide data for regulatory acceptance

Confirm viability of membrane bioreactor (MBR) process

Optimize full-scale treatment process design

Establish cost clarity for treatment

Confirm operational dependencies/ interfaces with LACSD

Provide vehicle for public outreach and acceptance

INITIAL TESTING PERIOD

FUTURE TESTING PERIOD

ONGOING

E&O Committee Item 6a Slide 12 December 10, 2018

Primary focus

Demonstrate pathogen removal

Achieve regulatory acceptance of MBR

Water quality from all unit processes will be monitored to ensure treatment goals are met

LACSD will characterize JWPCP source water & brine/waste streams from the AWT process

MBR Regulatory Acceptance

E&O Committee Item 6a Slide 13 December 10, 2018

Draft plan submitted in early October

Plan incorporated input from Independent Scientific Advisory Panel

Regulatory approval of final plan anticipated in early 2019

January 2019 meeting scheduled to review final plan

Testing to begin in March 2019 for 15-month duration

E&O Committee Item 6a Slide 14 December 10, 2018

Process Optimization/Design Criteria Development

Follows initial MBR regulatory testing Future Board funding request

Similar to use of ODP for Oxidation Retrofit Program

Key areas of investigation Nitrogen management

Source control

Product water stabilization

Brine and residuals management

E&O Committee Item 6a Slide 15 December 10, 2018

Construction/Commissioning

Facility Opening Event

MBR Regulatory Testing

Process Optimization & Design Criteria Development

Construction (funded) Completion

Initial Operations and Regulatory Acceptance (funded)

Process Optimization and Design Criteria (future funding required)

E&O Committee Item 6a Slide 16 December 10, 2018

Feasibility Report (completed Nov. 2016)

Determined that 150 MGD program “could” be implemented

Did not answer questions: “how or should” program be implemented

Conceptual Report (scheduled Feb. 2019)

Examines and refines approaches as to “how” program could be implemented

Update to Board in March 2019

E&O Committee Item 6a Slide 17 December 10, 2018

Refines approach to overall program configuration

Examines potential options for phasing program

Presents cost estimate in 2018 dollars, and cost comparison between alternatives

Provides early assessment of potential future opportunities for DPR

E&O Committee Item 6a Slide 18 December 10, 2018

Conceptual Planning Studies Report

Assessment of IRP, Rates, and Terms

Board Workshops on RRWP

Studies Completion

Assessment Board Action

Board Workshops Board Update

E&O Committee Item 6a Slide 19 December 10, 2018

Outreach trailer for visitors

Exhibits & displays

Facility opening event on March 21, 2019

Tours for public & stakeholders