Supplemental-RY2024_Kiefer_Verification_Report_8-1-2025.pdf

Kiefer Landfill

CARB Facility ID:

101100

12701 Kiefer Blvd

Sloughhouse, CA 95683

August 2025

Prepared by:

Office Locations:

Los Angeles, Orange County, Riverside, Ventura, San Diego, Fresno, Berkeley, San Jose, Bakersfield

Tel: (949) 248-8490 Fax: (949) 248-8499

Copyright ©2025, Yorke Engineering, LLC

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GHG RY2024 Verification Report

GHG RY2024 Verification

Report

Prepared for:

CARB Facility ID: 101100

August 2025

Copyright ©2025, Yorke Engineering, LLC

Table of Contents

1.0 INTRODUCTION

1.1 Facility Background

1.2 Verification Team

2.0 VERIFICATION ACTIVITIES

2.1 Conflict of Interest Determination and Notice of Verification Service

2.2 Verification Plan

2.3 Site Visit

3.0 VERIFICATION ASSESSMENT

3.1 Sampling Plan

3.1.1 Ranking and Qualitive Narrative of Emissions

3.1.2 Ranking Qualitive Narrative of Product Data

3.2 Data Review

4.0 VERIFICATION FINDINGS

4.1 Issue Log

4.2 Materiality Assessments

4.3 Conformance Assessments

4.4 Verification Statement

Table of Appendices

APPENDIX A – VERIFICATION PLAN

APPENDIX B – ISSUE LOG

APPENDIX C – VERIFICATION STATEMENT AND GHG EMISSIONS REPORT

Sub-Appendix A – Verification Statement Sub-Appendix B – Final Certified GHG Emissions Report

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List of Tables Table 3-1: Ranking by Magnitude and Risk by Uncertainty of Emission Data Table 3-2: Emissions Data Check Summary

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List of Acronyms and Abbreviations Cal e-GGRT California Electronic Greenhouse Gas Reporting Tool CARB California Air Resources Board COI Conflict of Interest CH4 Methane CO2 Carbon Dioxide CO2e Carbon Dioxide Equivalent GHG Greenhouse Gas MMBtu Million British Thermal Units MRR Mandatory Reporting Regulation MT Metric Tons N2O Nitrous Oxide NAICS North American Industry Classification System NOVS Notice of Verification Services SMUD Sacramento Municipal Utility District

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GHG RY2024 Verification Report

1.0 INTRODUCTION

The Yorke Engineering, LLC (Yorke) verification team has prepared this Verification Report as specified in the 2018 version of the Greenhouse Gas (GHG) Mandatory Reporting Regulation (MRR) Section 95131(c)(3)(A). In accordance with the regulation and recommendations provided by the California Air Resources Board (CARB), the Verification Report includes a detailed description of the facility, including emission and product sources and boundaries, description of systems used to collect and calculate product data and emissions, the verification plan, data checks conducted, issues, qualifying comments, and calculations performed for emissions and product data.

1.1 Facility Background

Kiefer Landfill (Kiefer) is a solid waste landfill that captures landfill gas to be burned in flares or engines to generate electricity that is sold to the grid. The facility is located in Sloughhouse, California and has a primary North American Industry Classification System (NAICS) code of 562212. The facility is subject to the GHG reporting and verification requirements within Sections 95112 and 95115 of CARB GHG MRR. The following emissions sources are located at the facility:

GP-KLG 1 and 2, aggregation of landfill gas-fired units, including;

Five (5) reciprocating internal combustion engines generating electricity.

The largest rated unit at the facility is 32.3 million British thermal units per hour (mmBtu/hr) with a total nameplate capacity of 15.25 megawatts (MW). The five engines are the only non-exempt combustion unit at the facility.

1.2 Verification Team

Yorke’s GHG staff involved in this third-party verification for Kiefer consisted of the following members:

Lead Verifier – Nick Molzahn; and Independent Reviewer – Joseph Steirer.

2.0 VERIFICATION ACTIVITIES

2.1 Conflict of Interest Determination and Notice of Verification Service Per Section 95133 of the CARB GHG MRR, Yorke only contacted facilities for providing verification services to businesses that were determined not to have a previous working relationship. After contracting with Kiefer to provide verification services, Yorke again reviewed the Conflict of Interest (COI) with Kiefer and confirmed no potential conflicts existed for verification support. On May 8, 2025, Yorke submitted the initial COI/Notice of Verification Services (NOVS) form to CARB which was approved shortly thereafter. In early June, the Lead Verifier suffered a medical emergency that required a change to the site visit. The revised COI/NOVS was submitted on July 16, 2025. Yorke received notification from CARB on July 16, 2025 to proceed with verification services with Kiefer.

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2.2 Verification Plan

Per Section 95131(b)(1) of the CARB GHG MRR, a verification plan includes information from the reporting entity that allows the verification team to develop a general understanding of the facility boundary, operations, emission sources, and product data. This also includes specific methodologies used by the facility to develop their GHG emissions and reported product data. To assist with this review, the information also includes data management systems used to track GHG emissions and product data. It also includes information regarding training or qualifications of personnel involved in developing the emissions data report.

The verification plan lists specific activities that must be conducted during the 3rd party GHG report verification process. The verification plan also identifies an expected timeline for the completion of each activity. A copy of the verification plan is included in Appendix A, as required as part of the Verification Report.

To prepare the verification plan, Yorke requested the following documents:

GHG Monitoring Plan;

Workbooks or other documents used to calculate data used in the GHG report;

Internal landfill gas fuel meters and electricity meters;

Electricity sales and purchase records;

Map of the facility; and Additional information associated with the preparation of the 2024 CARB GHG report.

2.3 Site Visit

A site visit was conducted on July 23, 2025. During the site visit, Yorke reviewed the data management system, facility boundary, and all meters associated with GHG reporting. Yorke spoke with Kiefer Landfill staff to understand how the data is managed and compiled at the facility for preparing the GHG report.

3.0 VERIFICATION ASSESSMENT

The verification assessment was completed based on the verification and sampling plans. The data review process was completed to determine if the report met the requirements of the CARB GHG MRR. All available data sources were reviewed and compared to the data from the summary spreadsheet and monitoring plan to ensure the reported data met accuracy and completeness requirements as required.

3.1 Sampling Plan

Yorke developed a draft sampling plan and revised the sampling plan based on data collected during the data review process. The sampling plan was developed based on the requirements of Section 95131(b)(7) of the regulation. As part of the plan, the emissions sources were ranked by total emissions and calculation uncertainty, as well as a qualitive narrative of the uncertainty risk assessment. The assessment included the ranking of emissions and product data.

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3.1.1 Ranking and Qualitive Narrative of Emissions

The landfill gas measurements are based on the internal meter readings taken by the facility. Since the carbon dioxide (CO2) emissions from biogas emissions are not covered emissions, the CO2 portion of the fuel meter readings are not subject to the accuracy requirements of Section 95103(k). The methane (CH4) and nitrous oxide (N2O) emissions are considered as covered emissions and make up a small portion of the facility’s total GHG emissions but is still subject to the meter accuracy requirements per Section 95103(k). Since the actual covered emissions are small, the uncertainty risk is deemed to be low, the facility uses the default high heat value for reporting. Although, the landfill gas fuel meters do not require calibration, the meters are still calibrated annually and meet the meter accuracy requirements per Section 95103(k), confirming the low uncertainty risk assessment.

Table 3-1: Ranking by Magnitude and Risk by Uncertainty of Emission Data

Unit Name Fuel Type(s)

Reported Emissions

% of Total Emissions

Quantity Rank

Uncertainty Risk Rank

GP-KLG 1 and 2 Landfill Gas 100,302 MT CO2e 100% 1 Low

All the supplemental data associated with gathering the landfill gas meter readings were reviewed as part of the uncertainty risk assessment. The emissions are calculated directly in Cal e-GGRT using Equation C-1 from Subpart C, Tier 1 methodology, which does not require multiple calculation steps.

3.1.2 Ranking Qualitive Narrative of Product Data

There is no covered product data at Kiefer, so no ranking of risk by uncertainty or qualitive narrative is required.

3.2 Data Review

Yorke performed a detailed data review on the reported data based on areas of highest contributions of emissions and risk of uncertainty, as described briefly above as well as in the sampling plan. This data review was completed using data checks as described per Section 95131(b)(8) of the regulation.

All the data used to report facility GHG emissions and gross generated were determined from internal meter readings. Electricity purchases, sales, and net power generated were based on third-party data provided by the Sacramento Municipal Utility District (SMUD). Meter accuracy checks were performed and deemed accurate under Section 95103(k) of the regulation.

During the initial data review, electricity purchases differed by a small amount from billing records as described in the issue log. This item was addressed, and the final data checks are provided in Table 3-2.

Table 3-2: Emissions Data Check Summary

Source Reported Value Covered? Yorke Value Difference

GP-KLG 1 and 2, Landfill Gas, Non-

Biogenic CO2 0 MT Yes 0 MT <0.1%

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Source Reported Value Covered? Yorke Value Difference

GP-KLG 1 and 2, Landfill Gas, Biogenic CO2 99,788.5 MT Yes 99,788.5 MT <0.1%

GP-KLG 1 and 2, Landfill Gas, CH4 6.13 MT Yes 6.13 MT <0.1% GP-KLG 1 and 2, Landfill Gas, N2O 1.21 MT Yes 1.21 MT <0.1%

Total Covered CO2e Emissions 513.1 MT Yes 513.1 MT <0.1% Total De Minimis CO2e Emissions 0 MT Yes 0 MT <0.1%

Natural Gas Purchases (Total) 0 MMBtu No 0 MMBtu <0.1% Electricity Purchases (Total) 783.2 MWh No 783.2 MWh <0.1%

Electricity Sales (Total) 84,255 MWh No 84,146 MWh <0.2% Gross Power Generated 94,421 MWh No 94,421 MWh <0.1% Net Power Generated 84,255 MWh No 84,146 MWh <0.2%

Nonquantitative data review included the NAICS code, maximum heat input rating, change in emissions, facility location, and parent company information. All the data on the report was determined to be accurate for the nonquantitative data review.

All the covered emissions were reported as de minimis for the facility and reviewed in Table 3-2.

No missing data substitution was used by Kiefer for preparing the 2024 GHG report and hence was not included as part of the data review process.

4.0 VERIFICATION FINDINGS

4.1 Issue Log

As required under Section 95131(b)(11), an issue log was maintained of discrepancies noted as part of the third-party GHG verification process. After the initial data review was completed, two issues were noted in the issue log. All of the issues were resolved by Kiefer. The issue log with resolutions is included in Appendix B.

4.2 Materiality Assessments

The materiality assessment is a review of a potential material misstatement where the verified accuracy is determined to be greater than 5% of the reported covered emissions or product data as required by CARB GHG MRR. Assessments are conducted independently on total reported covered emissions and each product data component as required by Section 95131(b)(12) of the regulation. Since Kiefer has no product data, this assessment was performed solely on the total covered emissions data using the equation given below.

𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃 𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸 =

∑[𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷 + 𝑂𝑂𝑂𝑂𝑂𝑂𝑂𝑂𝑂𝑂𝑂𝑂𝑂𝑂𝑂𝑂𝑂𝑂 + 𝑀𝑀𝑀𝑀𝑀𝑀𝑀𝑀𝑀𝑀𝑀𝑀𝑀𝑀𝑀𝑀𝑀𝑀𝑀𝑀𝑀𝑀𝑀𝑀]𝑥𝑥100%

𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇 𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅 𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒 𝑝𝑝𝑝𝑝𝑝𝑝𝑝𝑝𝑝𝑝𝑝𝑝𝑝𝑝 𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑⁄

< 0.1% =

∑[0 𝑀𝑀𝑀𝑀 + 0 𝑀𝑀𝑀𝑀 + 0 𝑀𝑀𝑀𝑀] × 100%

513.1 𝑀𝑀𝑀𝑀

Yorke calculated a total percent error of less than 0.1%. The total covered emissions match the covered emissions in the final revised report certified by Kiefer.

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No misstatements were identified during the final verification review.

4.3 Conformance Assessments

Yorke also evaluated Kiefer for conformance. A non-conformance is a failure to meet any of the requirements as specified in the CARB GHG MRR. This evaluation includes both non-covered data included in the report or other administrative requirements that do not impact the reporting of GHG emissions, such as GHG Monitoring Plan maintenance, documentation retention, or other similar requirements.

There were two potential non-conformances noted initially and included in the issue log. However, this was resolved, and there are no non-conformances in the final documentation and report provided to Yorke by Kiefer.

4.4 Verification Statement

The verification body has reviewed the Kiefer 2024 GHG report and determined that the report is free of material misstatement, is in full conformance with the CARB GHG MRR and has positively verified without any qualification. Copies of the verification statement as well as the final certified version of the GHG report is included in Appendix C.

APPENDIX A – VERIFICATION PLAN

CARB Facility ID:

101100

July 2025

Prepared by:

Office Locations:

Los Angeles, Orange County, Riverside, Ventura, San Diego, Fresno, Berkeley, San Jose, Bakersfield

Tel: (949) 248-8490 Fax: (949) 248-8499

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GHG RY2024 Verification Plan

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GHG RY2024 Verification Plan

INTRODUCTION

The verification team has prepared this Verification Plan as specified in the 2018 version of the Greenhouse Gas (GHG) Mandatory Reporting Regulation (MRR) Section 95131(b)(1). In accordance with the regulation and recommendations provided by the California Air Resources Board (CARB), the Verification Plan includes a general description of the proposed documents and data reviews and a summary of a review of the facility’s boundaries, operations, emissions sources, and product data management systems. Information regarding the training or qualifications of personnel involved in developing the GHG emissions report has also been included. In compliance with the regulation, this Verification Plan includes the following information:

Types of proposed documents and data reviews;

Summary of a review of the facility’s boundaries, operations, emissions sources, and product data management systems;

Summary of a review of training and qualifications of personnel;

Review of data management systems and tracking;

Review of the previous Verification Report; and Timeline of verification services, including:

Approval of Conflict of Interest (COI) and Notice of Verification Services (NOVS);

Initial data request and data received;

Sampling plan;

Site Visit;

Issue log, including data checks/findings;

Submittal of verification statement; and Completion of report.

TYPES OF PROPOSED DOCUMENTS AND DATA REVIEWS

The document and data checks focus on the largest and most uncertain estimates of emissions and product data (as applicable). Upon review of the documents provided, the verifier(s) developed the scope of the proposed document and data review to ensure the accuracy, completeness, and conformance of the GHG report and to determine if it is free of material misstatement.

Source Identification The verification team assessed the accuracy of the data collected and sources reported. Particular attention was devoted to reviewing the facility site plans, number of sources, calculation spreadsheets, and annual emissions reports.

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General Reporting The following items will be identified and explained by personnel as part of the data review process and subsequent follow-up and by the data provided:

Facility boundary, operations, and emissions sources;

Description of GHG emission calculations methodologies, with a focus on verification of the accuracy of the reported data; and Description of missing data procedures used, if applicable.

Data Collection The following items will be identified and explained by personnel and subsequent follow-up and by the data provided:

Types of meters used for measuring data used for GHG calculations;

Collection and recording of meter readings and electricity bills;

Maintenance of data meter data quality (accuracy/calibration); and Accuracy of data collection, processing, and tracking.

Backup Documentation Review Backup documentation was reviewed with an emphasis on the following:

Electricity purchases or acquisitions from the utility;

Calculation of carbon dioxide (CO2) emissions based on data from internal meter readings;

Processes at the facility as they apply to the facility’s GHG emission calculations; and De minimis emissions (as applicable).

SUMMARY OF REVIEW OF FACILITY’S BOUNDARIES, OPERATIONS,

EMISSIONS SOURCES, AND PRODUCT DATA MANAGEMENT SYSTEMS

Kiefer Landfill (Kiefer) is a solid waste landfill that captures landfill gas, which is either burned in flares or combusted in engines to generate electricity that is sold to the grid. The facility is located in Sloughhouse, California and has a primary North American Industry Classification System (NAICS) code of 562212. The facility is subject to the GHG reporting and verification requirements within Sections 95112 and 95115 of CARB GHG MRR. The following emissions sources are located at the facility:

GP-KLG 1 and 2, aggregation of landfill gas-fired units, including;

Five (5) reciprocating internal combustion engines generating electricity.

The largest rated unit at the facility is 36.3 million British thermal units per hour (mmBtu/hr) with a total nameplate capacity of 14.8 megawatts (MW). The five engines are the only non-exempt combustion unit at the facility.

GHG emissions estimated per the 2024 report are as stated in Table 1.

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Table 1: 2024 GHG Emissions for Kiefer Emission Type GHG Emissions (MT CO2e)

CO2 equivalent emissions, excluding biogenic (Subparts C through AA) 513.1

Exempt biogenic CO2 emissions (subparts C – AA) 99,788.5

Covered CO2 equivalent emissions 513.1 De minimis CO2 equivalent 0

The facility consists of one contiguous boundary. The facility produces landfill gas which is combusted in stationary emissions.

SUMMARY OF REVIEW OF TRAINING AND QUALIFICATIONS OF

PERSONNEL

Mr. Keith Goodrich is the designated representative for the facility, and Mr. John Jowers serves as the primary contact with the verification body. The facility does have a GHG Monitoring Plan associated which contains staff responsibilities for preparing the reports. Gaining an understanding of what roles the staff serve in preparing the report was clarified throughout the verification process.

Throughout the verification process the roles of all staff involved with GHG reporting will be reviewed by Yorke Engineering, LLC (Yorke).

METHODOLOGIES USED TO QUANTIFY AND REPORT GHG EMISSIONS

Methodologies Used to Quantify and Report GHG Emissions Kiefer uses Tier 1 methodology from Code of Federal Regulations (CFR) Title 40 Section 98.33 (Equation C-1) to calculate GHG emissions based metered landfill gas flow to the engines and using the default HHV for biogas. The quantity of electricity purchased and consumed on-site as well as electricity generated and sold at the facility is metered, recorded, and provided to the facility by Sacramento Municipal Utility District (SMUD).

Methodologies Used to Quantify and Report Other GHG-Related Information (Including Product Data) This item is not applicable, as this facility does not manufacture any covered products as defined by the regulation.

REVIEW OF DATA MANAGEMENT SYSTEMS AND TRACKING

Information Relating to the Data Management System Used to Track GHG Emissions The quantity of landfill gas is determined through internal meter readings taken at the facility.

Electrical usage and sold is provided by SMUD. Regular measurements of internal meters are taken by Kiefer to quantity fuel combusted. Throughout the verification process, Yorke will review in more detail how the landfill gas is measured by the facility.

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Information Relating to the Data Management System Used to Track Other Related Information (Including Product Data) This item is not applicable, as this facility does not manufacture any covered products as defined by the regulation.

REVIEW OF PREVIOUS VERIFICATION REPORT

Previous GHG Verification Reports have been obtained and compared to the current GHG report.

TIMELINE OF VERIFICATION SERVICES

The following are specific dates of verification activities either completed or estimated to be completed in the future during the verification process for Kiefer 2024 GHG emissions report:

Submittal and Approval of the Original COI and NOVS: May 8, 20251;

Approval of the Revised COI and NOVS: July 7, 20252;

Initial data request: May 8, 2025;

Initial data received: May 9, 2025 Draft Verification/Sampling Plan: July 9, 2025;

Initial Data Checks: July 17, 2025;

Site Visit: July 8, 2025;

Issue log Completed: July 30, 2025;

Independent Review: August 5, 2025;

Verification Statement Issued: August 6, 2025; and Final Verification Report: August 6, 2025.

1 Approximate date of original submittal and approval.

2 The site visit had to be rescheduled at short notice due to a medical emergency for the Lead Verifier in early June 2025. Extended medical follow-up occurred through June and July. CARB staff were notified and the site visit proceeded on the new date without incident.

APPENDIX B – ISSUE LOG

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Reporting Entity: Kiefer Landfill Subparts Reported: A and C Year of Emissions Data: 2024 Lead Verifier: Nick Molzahn

# Date Date Resolved Description of Issue/Source Regulation

Citation Potential Impact upon

GHG Data Action Required by Reporting Entity Resolution

1 7/17/2025 7/30/2025

Electricity Purchases per account billing records were not pro-rated correctly for January and December 2024.

MRR §95104(d) Non-conformance;

correctable error.

Review electricity invoices. If any discrepancies are noted, revise Cal e- GGRT to correct electricity usage as required.

Resolved 7/30/2025: Cal e-GGRT updated with correct pro-rating usage information.

2 7/17/2025 7/30/2025 Reported Net Electricity Generation did not align with SMUD invoices

MRR

§95112(a)(4)

Non-conformance;

correctable error.

Review cause of discrepancy and revise either Subpart A, Subpart C or both.

Resolved 7/30/2025: Facility noted that measurements were indeed different due to transmission losses and this issue was resolved.

"Net electricity generation from KLG 1 and KLG 2 are measured at two metered points. The first point is at the power plant prior to transmission to the electrical grid, the second at the SMUD receiving meter. Power plant records are used to determine parasitic plant and flare station usage. SMUD records are used to determine payment amounts from SMUD to Sacramento County for electricity generated and delivered for sale. The power plant and SMUD meters vary in measurement by roughly 0.13% over 2024. This variance is attributed to likely transmission losses."

GHG Reporting Issue Log

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APPENDIX C – VERIFICATION STATEMENT AND GHG EMISSIONS

REPORT

Sub-Appendix A – Verification Statement Sub-Appendix B – Final Certified GHG Emissions Report

STATE OF CALIFORNIA

CALIFORNIA ENVIRONMENTAL PROTECTION AGENCY

CALIFORNIA AIR RESOURCES BOARD

MRR VERIFICATION STATEMENT FORM

ISD/PPMD-029 (REV. ) PAGE 1 OF 4

EMISSIONS DATA REPORT

For assistance completing or submitting this report, contact ghgverify@arb.ca.gov.

PART I: EMISSIONS DATA REPORT INFORMATION

Reporting Year:

PART II: VERIFICATION BODY INFORMATION

Verification Body Name:

PART III: REPORTING ENTITY INFORMATION

Name of Reporting Entity: CARB ID Number:

PART IV: VERIFICATION STATEMENT INFORMATION

1. This verification statement attests that the submitted data are (check one):

Reasonably assured of being free of material misstatement

NOT reasonably assured of being free of material misstatement

2. This verification statement attests that the submitted data are (check one):

Reasonably assured of being in conformance with the regulation

NOT reasonably assured of being in conformance with the regulation

NOT reasonably assured of being in conformance with the regulation, including NOT in conformance with §95131(b)(9): failure to correct data errors discovered during data checks

3. As a result of the selections above, the final verification statement is (check one):

Positive: Reasonably assured of no material misstatement and in conformance with the regulation

Qualified Positive: Reasonably assured of no material misstatement, but not reasonably assured in conformance with the regulation

Adverse: Not in conformance with §95131(b)(9) and/or not reasonably assured of no material misstatement

4. Provide the Qualifying Statement below (required for qualified positive or adverse statements):

08/2020

I Yorke Engineering, LLC

Kiefer Landfill, Department of Waste Management and Recycling 101100

CALIFORNIA AIR RESOURCES BOARD

MRR VERIFICATION STATEMENT FORM

ISD/PPMD-029 (REV. ) PAGE 2 OF 4

PART V: SIGNATURE

As the lead verifier for this verification, I certify under penalty of perjury under the laws of the State of California that the verification team has carried out all verification services as required by the Regulation for the Mandatory Reporting of Greenhouse Gas Emissions (MRR) (title 17, California Code of Regulations, §95100-95158).

Printed Name: Date:

Signature Of Lead Verifier:

As the independent reviewer, I certify under penalty of perjury under the laws of the State of California, that I have conducted an independent review of the verification services and findings on behalf of the verification body as required by the Regulation for the Mandatory Reporting of Greenhouse Gas Emissions (MRR) (title 17, California Code of Regulations, §95100-95158), and that the findings are true, accurate and complete.

Printed Name: Date:

Signature Of Independent Reviewer:

08/2020

Nick Molzahn 08/06/2024

12]

Joseph Steirer 08/06/2024

Nick Molzahn 08/06/2025

Joseph Steirer 08/06/2025

CALIFORNIA AIR RESOURCES BOARD

MRR STATEMENT FORM

ISD/PPMD-029 (REV. ) PAGE 3 OF 4

PRODUCT DATA REPORT (IF APPLICABLE)

For assistance completing or submitting this report, contact ghgverify@arb.ca.gov.

PART I: PRODUCT DATA REPORT INFORMATION

Reporting Year:

PART II: VERIFICATION BODY INFORMATION

Verification Body Name:

PART III: REPORTING ENTITY INFORMATION

Name of Reporting Entity: CARB ID Number:

PART IV: VERIFICATION STATEMENT INFORMATION

Reasonably assured of being free of material misstatement

1. This verification statement attests that the submitted data are (check one):

NOT reasonably assured of being free of material misstatement

2. This verification statement attests that the submitted data are (check one):

Reasonably assured of being in conformance with the regulation

NOT reasonably assured of being in conformance with the regulation

NOT reasonably assured of being in conformance with the regulation, including NOT in conformance with §95131(b)(9): failure to correct data errors discovered during data checks

3. As a result of the selections above, the final verification statement is (check one):

Positive: Reasonably assured of no material misstatement and in conformance with the regulation

Qualified Positive: Reasonably assured of no material misstatement, but not reasonably assured in conformance with the regulation

Adverse: Not in conformance with §95131(b)(9) and/or not reasonably assured of no material misstatement

4. Provide the Qualifying Statement below (required for qualified positive or adverse statements):

VERIFICATION

08/2020

CALIFORNIA AIR RESOURCES BOARD

MRR VERIFICATION STATEMENT FORM

ISD/PPMD-029 (REV. ) PAGE 4 OF 4

PART V: SIGNATURE

As the lead verifier for this verification, I certify under penalty of perjury under the laws of the State of California that the verification team has carried out all verification services as required by the Regulation for the Mandatory Reporting of Greenhouse Gas Emissions (MRR) (title 17, California Code of Regulations, §95100-95158).

Printed Name: Title:

Signature Of Lead Verifier: Date:

As the independent reviewer, I certify under penalty of perjury under the laws of the State of California, that I have conducted an independent review of the verification services and findings on behalf of the verification body as required by the Regulation for the Mandatory Reporting of Greenhouse Gas Emissions (MRR) (title 17, California Code of Regulations, §95100-95158), and that the findings are true, accurate and complete.

Printed Name: Title:

Signature Of Independent Reviewer: Date:

08//2020

Facility Name: Kiefer Landfill, Department of Waste Management and Recycling Facility ARB ID: 101100 Facility Reporting Year: 2024

Certification Statement:

The designated representative or alternate designated representative must sign (i.e., agree to) this certification statement. If you are an agent and you click on "SUBMIT", you are not agreeing to the certification statement, but are submitting the certification statement on behalf of the designated representative or alternate designated representative who is agreeing to the certification statement. An agent is only authorized to make the electronic submission on behalf of the designated representative, not to sign (i.e., agree to) the certification statement.

Facility Representatives Alternate Designated Representative:

Peter Hoseit

Agent: Jeremy Zuber Agent: John Jowers Agent: Ray Huff Agent: kathryn chapman Designated Representative: Keith Goodrich

Facility Location Physical Address: 12701 Kiefer Blvd City: Sloughhouse State / Province: CA ZIP / Postal Code: 95683 Country:

Latitude: 38.5149 Longitude: -121.19439

County: SACRAMENTO Air Basin: SACRAMENTO VALLEY District: SACRAMENTO METROPOLITAN AQMD

Mailing Address: 10863 Gold Center Dr.

City: Rancho Cordova State / Province: CA ZIP / Postal Code: 95670 Country: USA

Payment Information (required if subject to AB 32 Cost of Implementation Fee Regulation) Responsible Party for Payment:

Responsible Party Email:

Responsible Party Phone:

Billing Address:

City:

State / Province:

ZIP / Postal Code:

Country:

Owners / Operators Name: Sacramento County Department of Waste Management and Recycling

Facility or Entity Total GHG Emissions Summary CO2 equivalent emissions, excluding biogenic (subparts C – AA):

513.104891 Metric Tons

Exempt biogenic CO2 emissions (subparts C – AA):

99,788.495004 Metric Tons

CO2 equivalent emissions from fuel supplier categories, excluding biogenic (subparts MM – NN):

0 Metric Tons

Exempt biogenic CO2 emissions from fuel supplier categories (subparts

MM – NN):

0 Metric Tons

CO2 emissions from CO2 Suppliers (excluding biogenic) (subpart PP):

0 Metric Tons

Exempt biogenic CO2 emissions from CO2 Suppliers (subpart PP):

0 Metric Tons

Covered CO2 equivalent emissions:

513.104891 Metric Tons

De Minimis CO2 equivalent emissions:

0 Metric Tons

Maximum allowable De Minimis emissions:

3,009.047997 Metric Tons

General Facility Reporting Information NAICS Codes

Primary: 562212 (Solid Waste Landfill) Second Primary:

Additional:

U.S. Parent Companies Parent Company Name: County of Sacramento Address: 10863 Gold Center Dr., Rancho Cordova, CA 95670

Confidential Data Indication Set to "No" by Reporter

Subpart Total GHG Emissions Summary Subparts Non-Biogenic CO2 Exempt Biogenic CO2 Non-Exempt Biogenic CO2 Total CO2e Covered CO2e C 0 99,788.495004 0 100,301.599895 513.104891

7/31/25, 9:33 PM Cal e-GGRT Summary Report https://caleggrt.arb.ca.gov/verification/submitsummary.do?type=html&pid=39424&facid=541292 1/3

Percentage of Ownership Interest: 100% Country: UNITED STATES

GHG Report Start Date: 2024-01-01 GHG Report End Date: 2024-12-31 Explanation of any calculation methodology changes during the reporting year:

EPA e-GGRT Facility IDs

Full or Abbreviated GHG Report: Full Company or Entity qualifies for Small Business Status:

No

Electricity Provider's Name: Sacramento Municipal Utility District (SMUD) Provider's ARB ID: 3058 Purchases/Acquisitions: 783 MWh

Natural Gas Supplier Name: Facility does not consume NG Supplier's ARB ID:

Customer Number:

Purchases/Acquisitions: 0 MMBtu Was this natural gas received directly from an interstate pipeline?

No

Do you grant CARB staff permission to share confidential annual natural gas fuel purchase data with your identified natural gas fuel supplier?

No

For facilities subject to Cap-and- Trade requirements: Have total facility emissions increased or decreased more than 5% in relation to the previous data year? [Not applicable for fuel suppliers, CO2 suppliers, electric power entities, and abbreviated reporters.]

Yes

Provide a brief narrative description of what caused the increase or decrease in emissions. Include in this description any changes in your air permit status.

Facility operated more hours in 2024 then in 2023.

Note: This section is not subject to the third-party verification requirements

Electricity Generation Facility has the capacity to generate electricity:

Yes

CEC ID (if applicable): E0203 EIA Plant ID (if applicable): 55766 FERC QFID (if applicable): N/A CAISO ID (if applicable): N/A Total Facility Nameplate Generating Capacity:

15.25 MW

Facility Type: Industrial/institutional/commercial facility with electricity generation capacity Facility's Energy Disposition: Grid-dedicated facility

Disposition of Generated Electricity [95112(a)(4)] Generated Electricity for Grid Disposition [95112(a)(4)(A)]

Unit, System Or Group Name GP-KLG 1 and 2 Retail Provider/Marketer Name Sacramento Municipal Utility District (SMUD) Electricity Provided or Sold (MWh) 84,255

Generated electricity used for other on-site industrial processes that are not in support of or a part of the power generation system:

Reported emissions include emissions from a cogeneration/bigeneration unit:

No

Parasitic Steam Use: Generated thermal energy used for supporting power production (excluding steam used directly for generating electricity) [95112(a)(5)(B)]:

Generated thermal energy for on-site industrial applications not related to electricity generation [95112(a)(5)(C)]:

526343

Electricity Purchases/Acquisitions for Reporting Facilities (95104(d))

Natural Gas Purchases/Acquisitions for Reporting Facilities [95115(k), 95103(a)(1)]

Cap-and-Trade Facilities: Increases and Decreases in Facility Emissions [95104(f)]:

Subpart C: General Stationary Fuel Combustion

Gas Information Details Gas Name Gas Quantity (Metric Tons) https://caleggrt.arb.ca.gov/verification/submitsummary.do?type=html&pid=39424&facid=541292 2/3

Total Covered CO2e Emissions: 513.104891 (Metric Tons)

Emissions shown above that are claimed as De Minimis (CO2e):

0 Metric Tons

Unit Name: GP-KLG 1 and 2 Configuration Type: Aggregation of Units Unit Type: OCS (Other combustion source) Unit Description: Landfill gas to energy units KLG 1 and KLG 2 Small Unit Aggregation Details

Highest Maximum Rated Heat Input Capacity:

32.3 mmBtu/hr

Type of Emission Unit for this Group [Note: EGU/EGS must always be separated from other unit types]:

Reciprocating internal combustion engine

Does this configuration have the capacity to generate electricity?

Yes

Is this configuration a Part 75 unit? No Nameplate Generating Capacity: 15.25 MW Prime Mover Technology: Reciprocating Engine Type of Thermal Energy Generation: Electricity only EGU 95112(b)(2): Gross Generation: 94,421 MWh 95112(b)(2): Net Generation: 84,255 MWh 95112(b)(3): Total Thermal Output (for Cogeneration or Bigeneration):

95112(b)(8): Other Steam Used for Electricity Generation:

95112(b)(8): Input Steam to the Steam Turbine (for bottoming cycle cogeneration units only) 95112(b)(8): Output of the Heat Recovery Steam Generator (for bottoming cycle cogeneration units only) 95112(e): Geothermal Steam Utilized:

The source of geothermal generation:

95112(f): Stationary Hydrogen Fuel Cell: Fuel Type and Provider (if not reported elsewhere) Additional Comments and Information

Total exempt annual biogenic CO2 mass emissions (must equal the sum of calculated annual exempt biogenic CO2) (metric tons):

99,788.495004

Annual CO2 emissions from sorbent (metric tons):

Fuel: Biogas (including captured methane) - Biomass-Derived Fuels - Gaseous Calculation Methodology: Tier 1 (Equation C-1) Methodology Start Date: 2013-01-01 Methodology End Date: 2024-12-31 Percentage of Fuel that is Biogenic: 100%

Total CO2 emissions: 99,788.495004 Metric Tons Total CH4 emissions: 6.132575 Metric Tons Total N2O emissions: 1.207351 Metric Tons Total CH4 emissions CO2e: 153.314377 Metric Tons Total N2O emissions CO2e: 359.790514 Metric Tons

Mass or Volume of Fuel Combusted per Year:

2,278,751,141.6 scf

High Heat Value: 0.000841 mmBtu/scf Fuel Specific CO2 Emissions Factor: 52.07 kg CO2/MMBtu Fuel Specific CH4 Emissions Factor: 0.0032 kg CH4/MMBtu Fuel Specific N2O Emissions Factor: 0.00063 kg N2O/MMBtu

Methane 6.132575 Nitrous Oxide 1.207351 Exempt Biogenic Carbon dioxide 99,788.495004 Non-Exempt Biogenic Carbon dioxide 0 Non-Biogenic Carbon dioxide 0 Total CO2e 100,301.599895

Unit Details

Electricity Generation Unit Information

Emission Details: Configuration-Level Summary (User entered values)

Fuel-Specific Emissions Information

Fuel Emission Details

Equation Inputs

Time And Date Report Generated: 07/30/2025 14:15 https://caleggrt.arb.ca.gov/verification/submitsummary.do?type=html&pid=39424&facid=541292 3/3

3.2 Data Review