CALIFORNIA WASTEWATER CALIFORNIA WASTEWATER CLIMATE CHANGE GROUP - - PowerPoint PPT Presentation

CALIFORNIA WASTEWATER CALIFORNIA WASTEWATER CLIMATE CHANGE GROUP CLIMATE CHANGE GROUP

Steering Committee and General Steering Committee and General Membership Meeting Membership Meeting

March 17, 2008 March 17, 2008 Sacramento Regional Wastewater Treatment Plant Sacramento Regional Wastewater Treatment Plant

Agenda Agenda – – Steering Committee Steering Committee

• 11:45 AM

11:45 AM – – 12:30 PM 12:30 PM

• Introductions/Sign

Introductions/Sign-

• in sheet

in sheet

• Meeting Purpose

Meeting Purpose

• CWCCG Update

CWCCG Update

• Discussion Items

Discussion Items

• Local Govt. Municipal Operations WW Protocol

Local Govt. Municipal Operations WW Protocol

• Proposal to form Steering Committee Core Group

Proposal to form Steering Committee Core Group

• New/additional Scope of Work

New/additional Scope of Work

• Public distribution of White Paper

Public distribution of White Paper

• Action Items & Next Steps

Action Items & Next Steps

Meeting Purpose Meeting Purpose

• Local Govt. Municipal Operations WW Protocol

Local Govt. Municipal Operations WW Protocol

• Vote on

Vote on CWCCG CWCCG’ ’s s role role

• Provide direction to CH2M

Provide direction to CH2M HILL HILL

• Proposal to form Steering Committee Core Group

Proposal to form Steering Committee Core Group

• Vote on proposal

Vote on proposal

• Select Core Group

Select Core Group

• New/additional Scope of Work

New/additional Scope of Work

• Vote on proposed SOW

Vote on proposed SOW

• Review CH2M

Review CH2M HILL and CWCCG budget status HILL and CWCCG budget status

• Public distribution of White Paper

Public distribution of White Paper

• Vote on procedure

Vote on procedure

Agenda Agenda – – General Membership General Membership

• 12:30

12:30 – – 3:30 PM 3:30 PM

• Lunch

Lunch

• Introductions

Introductions

• Meeting Purpose

Meeting Purpose

• CWCCG Update

CWCCG Update

• Regulatory activities

Regulatory activities

• Today

Today’ ’s Steering Committee meeting s Steering Committee meeting

• Discussion Items

Discussion Items

• Protocol Development

Protocol Development

• Action Items & Next Steps

Action Items & Next Steps

Meeting Purpose Meeting Purpose

• Update General Membership on recent

Update General Membership on recent regulatory and AB regulatory and AB-

• 32 WW Protocol

32 WW Protocol development development

• Present

Present “ “next steps next steps” ” for Protocol for Protocol development development

• Receive feedback from members on

Receive feedback from members on approach approach

CWCCG Update CWCCG Update

• 1/29/08

1/29/08 – – CCAR & CWCCG Meeting CCAR & CWCCG Meeting

• CCAR agreed CWCCG should draft Protocol

CCAR agreed CWCCG should draft Protocol

• agreement to 2

agreement to 2-

• year Protocol development, pending ARB acceptance

year Protocol development, pending ARB acceptance

• 2/27/08

2/27/08 – – ARB, CCAR & CWCCG Meeting ARB, CCAR & CWCCG Meeting

• ARB agreed to 2

ARB agreed to 2-

• year timeline

year timeline

• CCAR & ARB invited CWCCG to draft Local Govt. Municipal Operatio

CCAR & ARB invited CWCCG to draft Local Govt. Municipal Operations WW ns WW Protocol Protocol

• Special District CWCCG members expressed desire to be included i

Special District CWCCG members expressed desire to be included in Local n Local

• Govt. Protocols process
• Govt. Protocols process
• 3/11/08

3/11/08 – – ARB, CCAR & Local ARB, CCAR & Local Govts Govts for Sustainability (ICLIE) workshop for Sustainability (ICLIE) workshop

• CCAR & ICLIE could not guarantee including Special Districts

CCAR & ICLIE could not guarantee including Special Districts

• CCAR will consider Special Districts

CCAR will consider Special Districts

• If Special Districts allowed, CCAR will consider inviting them t

If Special Districts allowed, CCAR will consider inviting them to Working Group

• Working Group
• Special Districts welcomed to publicly participate

Special Districts welcomed to publicly participate

• CWCCG members TCSD/Jon Elam and City of L.A./Gretchen

CWCCG members TCSD/Jon Elam and City of L.A./Gretchen Hardison Hardison are are members of the Working Group; City of Palo Alto also involved members of the Working Group; City of Palo Alto also involved

• Other announcements for the Steering Committee?

Other announcements for the Steering Committee?

Steering Committee Steering Committee Discussion Items Discussion Items

Local Govt. Municipal Operations Local Govt. Municipal Operations WW Protocol WW Protocol

• Action Item

Action Item – – Vote Required: Vote Required:

• Does the CWCCG want to accept the invitation from

Does the CWCCG want to accept the invitation from CCAR & ARB to draft the wastewater element of the CCAR & ARB to draft the wastewater element of the Local Government Municipal Operations Protocols? Local Government Municipal Operations Protocols?

• Draft protocol due to CCAR May 16, 2008

Draft protocol due to CCAR May 16, 2008

• IPCC/USEPA

IPCC/USEPA— —Simplest/Top Simplest/Top-

• down Method

down Method

• USEPA Approach with

USEPA Approach with NACWA NACWA’ ’s s Updated Default Values Updated Default Values

• If so, does CWCCG Steering Committee want

If so, does CWCCG Steering Committee want CH2M CH2M HILL to develop this protocol? HILL to develop this protocol?

Proposal to form Steering Proposal to form Steering Committee Core Group Committee Core Group

• Directs and manages CH2M

Directs and manages CH2M HILL's HILL's week week-

• to

to-

• week activities and

week activities and contract issues (i.e. invoicing, additional meetings, etc.) contract issues (i.e. invoicing, additional meetings, etc.)

• Streamline administrative decisions

Streamline administrative decisions

• CH2M

CH2M HILL HILL’ ’s s agreement currently authorizes BACWA Air agreement currently authorizes BACWA Air Committee Chair as the primary contact Committee Chair as the primary contact

• Action Item

Action Item – – Vote Required: Vote Required:

• Does CWCCG Steering Committee want to initiate a Core Group?

Does CWCCG Steering Committee want to initiate a Core Group?

• If so, which members should be nominated?

If so, which members should be nominated?

• One member from each regional WW association

One member from each regional WW association— —i.e. BACWA, SCAP & i.e. BACWA, SCAP & CVCWA? CVCWA?

• One representative from N. Cal and one from S. Cal?

One representative from N. Cal and one from S. Cal?

• Chair of each WW association?

Chair of each WW association?

• Other proposals?

Other proposals?

• Alternate Core Group members also recommended

Alternate Core Group members also recommended

New/Additional Scope of Work New/Additional Scope of Work

• GHG Protocol Discussion Paper (Task 1)

GHG Protocol Discussion Paper (Task 1)

• On budget

On budget – – complete! complete!

• Protocol Development approach

Protocol Development approach— —original SOW vs. White Paper

• riginal SOW vs. White Paper
• Statewide Estimate Development?

Statewide Estimate Development?

• Local

Local Govt Govt WW Municipal Operations protocol & other differences WW Municipal Operations protocol & other differences

• $10

$10-

• 15K

15K

• Additional meetings and

Additional meetings and correspondance correspondance w/ CWCCG, CCAR and ARB w/ CWCCG, CCAR and ARB

• 8 meetings scoped, 7 meetings complete (

8 meetings scoped, 7 meetings complete (-

• $3K

$3K -

• 4K)

4K)

• additional budget for future meetings needed

additional budget for future meetings needed

• telephone calls w/ individual members

telephone calls w/ individual members

• individual conversations

individual conversations vs vs weekly or bi weekly or bi-

• weekly conference calls

weekly conference calls

• document calls for invoices

document calls for invoices

• email to Steering Committee or General Membership as needed

email to Steering Committee or General Membership as needed

• $50K recommended ($45K spent past year)

$50K recommended ($45K spent past year)

• WERF study has extended project duration

WERF study has extended project duration

• Literature search for other four

Literature search for other four GHGs GHGs: CO2, : CO2, hydrofluorocarbons hydrofluorocarbons, , perfluorocarbons perfluorocarbons, & , & sulfur hexafluoride sulfur hexafluoride

• $5

$5-

• 10K

10K

• CH4 and CO2 source

CH4 and CO2 source-

• testing

testing

(Through March 7, 2008)

CWCCG Budget CWCCG Budget

• CWCCG budget

CWCCG budget $134,000 $134,000

• CH2M

CH2M HILL contract HILL contract $103,000 $103,000

• CWCCG remaining budget

CWCCG remaining budget $31,000 $31,000

• Approx cost new SOW

Approx cost new SOW $75,000 $75,000

• CWCCG need for 2008/09

CWCCG need for 2008/09 $50,000 $50,000

• Action Item

Action Item – – Vote Required: Vote Required:

• Increase CWCCG budget for 2008/09?

Increase CWCCG budget for 2008/09?

• Request proposal from CH2M

Request proposal from CH2M HILL for new SOW? HILL for new SOW?

Public Distribution of White Paper Public Distribution of White Paper

• Requests for copies are coming from the

Requests for copies are coming from the public and other consultants public and other consultants

• Discussion: is there any reason to limit the

Discussion: is there any reason to limit the distribution of the White Paper? distribution of the White Paper?

• Action Item

Action Item – – Vote Required: Vote Required:

• Unlimited vs. limited email distribution?

Unlimited vs. limited email distribution?

• Distribution through one vs. multiple sources?

Distribution through one vs. multiple sources?

Agenda Agenda – – General Membership General Membership

• 12:30

12:30 – – 3:30 PM 3:30 PM

• Lunch

Lunch

• Introductions/Sign

Introductions/Sign-

• in sheet

in sheet

• Meeting Purpose

Meeting Purpose

• CWCCG Update

CWCCG Update

• Regulatory activities

Regulatory activities

• Today

Today’ ’s Steering Committee meeting s Steering Committee meeting

• Discussion Items

Discussion Items

• Protocol Development

Protocol Development

• Action Items & Next Steps

Action Items & Next Steps

Meeting Purpose Meeting Purpose

• Update General Membership on recent

Update General Membership on recent regulatory and AB regulatory and AB-

• 32 WW Protocol

32 WW Protocol development development

• Present

Present “ “next steps next steps” ” for Protocol for Protocol development development

• Receive feedback from members on

Receive feedback from members on approach approach

CWCCG Update CWCCG Update

• Regulatory activities

Regulatory activities

• Today

Today’ ’s Steering Committee meeting s Steering Committee meeting

• Local Govt. Municipal Operations WW Protocol

Local Govt. Municipal Operations WW Protocol

• Proposal to form Steering Committee Core Group

Proposal to form Steering Committee Core Group

• New/additional Scope of Work

New/additional Scope of Work

• Public distribution of White Paper

Public distribution of White Paper

• WERF study

WERF study

• Other announcements?

Other announcements?

California Wastewater Treatment California Wastewater Treatment Plant GHG Emissions Protocols Plant GHG Emissions Protocols

• AB

AB-

• 32 WW Protocols to be developed

32 WW Protocols to be developed

• Local Governments Municipal Operations

Local Governments Municipal Operations Wastewater Protocol Wastewater Protocol

• Wastewater Industry Protocol

Wastewater Industry Protocol

• Approach

Approach

• Schedule

Schedule

Wastewater Treatment Plant GHG Wastewater Treatment Plant GHG Emissions Reporting Protocol Emissions Reporting Protocol

• Outlined in the Protocol White Paper:

Outlined in the Protocol White Paper:

• Focus on CH

Focus on CH4

4 and N

and N2

2O emissions

O emissions

• Multiple methodologies to estimate GHG emissions

Multiple methodologies to estimate GHG emissions

• Flexibility based on plant size and operations

Flexibility based on plant size and operations

• Option 1: IPCC/USEPA

Option 1: IPCC/USEPA— —Simplest/Top Simplest/Top-

• down Method

down Method

• Option 2: USEPA Approach with

Option 2: USEPA Approach with NACWA NACWA’ ’s s Updated Default Updated Default Values Values

• Local Govt. Municipal Operations WW Protocol

Local Govt. Municipal Operations WW Protocol

• 5 months

5 months

• Option 3: Mass Balance Approach with New Emission Factors

Option 3: Mass Balance Approach with New Emission Factors (from WERF study) (from WERF study)

• Option 4: Site

Option 4: Site-

• specific source testing and modeling (from WERF

specific source testing and modeling (from WERF study) study)

• Wastewater Industry Protocol

Wastewater Industry Protocol

• 2 years

2 years

APPROACH APPROACH -

• Local Govt.

Local Govt. Municipal Operations WW Protocol Municipal Operations WW Protocol

• Given short timeline, utilize IPCC framework as

Given short timeline, utilize IPCC framework as “ “interim interim” ” wastewater treatment protocol wastewater treatment protocol

• CCAR and ARB have no required framework

CCAR and ARB have no required framework

• IPCC is

IPCC is “ “Open Source Open Source” ” document document

• Plan to integrate:

Plan to integrate:

• California related background/introduction

California related background/introduction

• Decision tree that directs users to appropriate sections

Decision tree that directs users to appropriate sections

• f:
• f:
• IPCC

IPCC

• USEPA WW Treatment Methodology

USEPA WW Treatment Methodology

• NACWA

NACWA’ ’s s updated emissions estimates (Option 2) updated emissions estimates (Option 2)

• CCAR General or Power & Utility Protocol

CCAR General or Power & Utility Protocol

• direct & indirect emissions for non

direct & indirect emissions for non-

• WW treatment activities

WW treatment activities

SCHEDULE SCHEDULE -

• Local Govt.

Local Govt. Municipal Operations WW Protocol Municipal Operations WW Protocol

Task Duration Due Date CH2M HILL develop draft Protocol 6-weeks May 1, 2008 CWCCG Steering Committee review & CH2M HILL finalize draft 2-weeks May 16, 2008 CCAR Stakeholder Review Process 1-month June 16, 2008 CH2M HILL revise Protocol, CWCCG review, & resubmit to CCAR 2-weeks June 30, 2008 CCAR Board Approval 3-weeks July 18, 2008 ARB approval 1-2 months August 2008

APPROACH APPROACH Wastewater Industry Protocol Wastewater Industry Protocol

• Develop Options 3 & 4

Develop Options 3 & 4

• WERF study

WERF study

• focusing on N2O

focusing on N2O

• developing an emissions inventory from a range of

developing an emissions inventory from a range of WWTPs WWTPs

• Activated Sludge Model

Activated Sludge Model-

• Nitrogen, Hiatt & Grady

Nitrogen, Hiatt & Grady

• developing and perfecting field procedures for site

developing and perfecting field procedures for site-

• specific testing

specific testing

• Integrate with Local Govt. WW Protocol

Integrate with Local Govt. WW Protocol

• yields a four option approach

yields a four option approach – – from general top from general top-

• down

down approach to source approach to source-

• specific bottom

specific bottom-

• up approach

up approach

• expand decision tree to include Options 3 & 4

expand decision tree to include Options 3 & 4

• includes a matrix of emission coefficients from a range of

includes a matrix of emission coefficients from a range of WWTPs WWTPs

• ultimately replaces Local Govt. WW Protocol

ultimately replaces Local Govt. WW Protocol

Methane Methane – – CH4 CH4

• Option 1: IPCC/USEPA

Option 1: IPCC/USEPA

• Option 2:

Option 2: NACWA NACWA’ ’s s Updated Default Updated Default Values Values

• Option 3

Option 3: : Complete Emissions Complete Emissions Inventory/Sampling Inventory/Sampling-

• based Approach

based Approach

• anaerobic plants, or those with potentially

anaerobic plants, or those with potentially high CH4 emissions high CH4 emissions

• consists of source testing and modeling of

consists of source testing and modeling of anaerobic and fugitive sources anaerobic and fugitive sources

Nitrous Oxide Nitrous Oxide – – N2O N2O

• Option 1: IPCC/USEPA

Option 1: IPCC/USEPA

• Option 2:

Option 2: NACWA NACWA’ ’s s Updated Default Values Updated Default Values

• Option 3

Option 3: : Mass Balance Approach with New Emission Factors Mass Balance Approach with New Emission Factors

• new Hiatt & Grady model:

new Hiatt & Grady model:

• used to develop general emissions factors for different classes

used to develop general emissions factors for different classes of

• f WWTPs

WWTPs based on size and treatment schemes based on size and treatment schemes

• estimate emissions using general emission factor that most close

estimate emissions using general emission factor that most closely ly represents a represents a WWTP WWTP’ ’s s operations

• perations
• requires in

requires in-

• field testing at a range of

field testing at a range of WWTPs WWTPs to calibrate the model to calibrate the model

• Option 4: Model and Source Test

Option 4: Model and Source Test

• provides

provides WWTPs WWTPs with site with site-

• specific emissions estimate

specific emissions estimate

• WWTP will conduct source testing at their site

WWTP will conduct source testing at their site

• field procedures perfected during WERF study will be included in

field procedures perfected during WERF study will be included in Protocol Protocol

• input results into the model to develop a more accurate estimate

input results into the model to develop a more accurate estimate of N2O

• f N2O

emissions from their facility emissions from their facility

APPROACH APPROACH Wastewater Industry Protocol Wastewater Industry Protocol

• Following slides provide breakdown of:

Following slides provide breakdown of:

• emissions definitions

emissions definitions

• various treatment plant phases & expected

various treatment plant phases & expected GHG emissions GHG emissions

• recommended protocol

recommended protocol

• Serves as the basis of the Protocol

Serves as the basis of the Protocol development development

Direct emissions / Direct emissions / Source 1 in CARB Source 1 in CARB terminology terminology Emissions from sources that are owned or controlled by the Emissions from sources that are owned or controlled by the reporting organization. reporting organization. Indirect emissions / Indirect emissions / Source 2 in CARB Source 2 in CARB terminology terminology Emissions that are a consequence of the actions of a reporting Emissions that are a consequence of the actions of a reporting entity but are produced by sources owned or controlled by entity but are produced by sources owned or controlled by another entity. another entity. Fugitive emissions Fugitive emissions Intentional and unintentional releases of GHG emissions from Intentional and unintentional releases of GHG emissions from joints, seals, gaskets, etc. joints, seals, gaskets, etc. De De minimus minimus emissions emissions A quantity of GHG emissions from a combination of sources A quantity of GHG emissions from a combination of sources and/or gases which, when summed, are considered insignificant. and/or gases which, when summed, are considered insignificant. Biogenic emissions Biogenic emissions Produced by the actions of living organisms; carbon Produced by the actions of living organisms; carbon-

• neutral

neutral emissions. emissions. Option 1 Option 1 USEPA Approach/IPCC Approach USEPA Approach/IPCC Approach Option 2 Option 2 USEPA Approach with updated default values USEPA Approach with updated default values Option 3 Option 3 CH CH4

4 -

• Complete emissions inventory/sampling

Complete emissions inventory/sampling-

• based approach

based approach N N2

2O

O -

• Mass balance approach with new emission factors

Mass balance approach with new emission factors

Option 4 Option 4 CH CH4

4 -

• Model and source test

Model and source test

Key Definitions Key Definitions

Expected Expected GHG Sources GHG Sources Expected Expected GHGs GHGs Emission Emission Type Type Recommended Recommended Reporting Protocol Reporting Protocol Primary Treatment: Primary Treatment: Grit removal Grit removal none expected none expected Primary clarifier Primary clarifier none expected none expected Secondary Treatment: Secondary Treatment: Aeration basin Aeration basin CO CO2

2 (biogenic), N

(biogenic), N2

2O

O Direct Direct Option 3: Mass balance with new Option 3: Mass balance with new emission factors emission factors Trickling filter Trickling filter CO CO2

2 (biogenic), N

(biogenic), N2

2O

O Direct Direct Option 3: Mass balance with new Option 3: Mass balance with new emission factors emission factors Anaerobic lagoons/reactors Anaerobic lagoons/reactors CO CO2

2 (biogenic), CH

(biogenic), CH4

4

Direct Direct Option 3: Complete emissions Option 3: Complete emissions inventory/sampling inventory/sampling-

• based approach

based approach Secondary clarifier Secondary clarifier none expected none expected Advanced Treatment: Advanced Treatment: Nitrogen removal Nitrogen removal (nitrification/denitrification) (nitrification/denitrification) N N2

2O

O Direct Direct Option 3: Mass balance with new Option 3: Mass balance with new emission factors & Option 4: Source emission factors & Option 4: Source test test Phosphorus removal Phosphorus removal none expected none expected Filter Filter none expected none expected Disinfection Disinfection none expected none expected Effluent Discharge Effluent Discharge N N2

2O

O Indirect Indirect Option 3: Mass balance with new Option 3: Mass balance with new emission factors emission factors

Expected Expected GHG Sources GHG Sources Expected Expected GHGs GHGs Emission Emission Type Type Recommended Recommended Reporting Protocol Reporting Protocol Sludge Treatment: Sludge Treatment: Anaerobic sludge digester Anaerobic sludge digester CO CO2

2 (biogenic),

(biogenic), CH CH4

4

Fugitive & Fugitive & De De minimus minimus Option 3: Complete emissions Option 3: Complete emissions inventory/sampling inventory/sampling-

• based approach

based approach Sludge dewatering Sludge dewatering CH CH4

4

Fugitive & Fugitive & De De minimus minimus Option 3: Complete emissions Option 3: Complete emissions inventory/sampling inventory/sampling-

• based approach

based approach Combustion of Combustion of Sludge/Digester Gas: Sludge/Digester Gas: Incineration of sludge Incineration of sludge CO CO2

2 (biogenic)

(biogenic) Direct Direct Option 3: Mass balance with new Option 3: Mass balance with new emission factors emission factors Combustion of digester gas Combustion of digester gas (e.g., open/closed flairs, (e.g., open/closed flairs, cogen cogen) ) CO CO2

2 (biogenic)

(biogenic) Direct Direct Option 3: Mass balance with new Option 3: Mass balance with new emission factors emission factors Incomplete combustion of Incomplete combustion of digester gas digester gas CH CH4

4

Direct Direct Option 3: Complete emissions Option 3: Complete emissions inventory/sampling inventory/sampling-

• based approach

based approach General Operations: General Operations: Stationary combustion Stationary combustion sources (e.g., boilers, sources (e.g., boilers, emergency generators) emergency generators) CO CO2

2, N

, N2

2O, CH

O, CH4

4

Direct Direct CCAR General & CCAR Power and CCAR General & CCAR Power and Utility Utility Mobile combustion sources Mobile combustion sources (e.g., trucks, off (e.g., trucks, off-

• road vehicles)

road vehicles) CO CO2

2, N

, N2

2O, CH

O, CH4

4

Direct Direct CCAR General & CCAR Power and CCAR General & CCAR Power and Utility Utility Purchased electricity, Purchased electricity, imported steam imported steam CO CO2

2

Indirect Indirect CCAR General CCAR General

SCHEDULE SCHEDULE Wastewater Industry Protocol Wastewater Industry Protocol

Task Task Duration Duration Due Date Due Date WERF WWTP emissions data WERF WWTP emissions data collection collection – – 3 3-

• quarters

quarters 10 10-

• months

months January 2009 January 2009 Modeling using 3 Modeling using 3-

• quarters of

quarters of WERF data WERF data 1 1-

• month

month February 2009 February 2009 WERF WWTP emissions data WERF WWTP emissions data collection collection – – 4 4th

th quarter; model

quarter; model update update 3 3-

• months

months April 2009 April 2009 CH2M CH2M HILL develop draft Protocol HILL develop draft Protocol 3 3-

• months

months June 2009 June 2009 CWCCG Steering Committee CWCCG Steering Committee review & CH2M review & CH2M HILL finalize draft HILL finalize draft 2 2-

• weeks

weeks July 2009 July 2009 CCAR Stakeholder Review CCAR Stakeholder Review Process Process 1 1-

• month

month November 2009 November 2009 CH2M CH2M HILL revise Protocol, HILL revise Protocol, CWCCG review, & resubmit to CWCCG review, & resubmit to CCAR CCAR 2 2-

• weeks

weeks December 2009 December 2009 CCAR Board Approval CCAR Board Approval 1 1-

• month

month January 2010 January 2010 ARB approval ARB approval 2 2-

• months

months March 2010 March 2010

Action Items & Next Steps Action Items & Next Steps