Sustainability Report

Overview

The report describes Summit’s 2025 transition to full-scale deployment of 10 advanced leak-detection units and a three-year survey cycle, alongside pipeline replacement and renewable natural gas initiatives. It reports Scope 1 emissions of 202,704 mt CO2e and Scope 3 emissions of 2,898,563 mt CO2e. The report also highlights community engagement, including 10,042 volunteer hours and a record 67% participation rate in its Volunteer Time Off program.

Document

Report type: Sustainability Report
Class: Dedicated
Scope: Full report
Fiscal year: 2025
Period: 1 January 2025 – 31 December 2025
Language: English
Pages
File size
Restatement: Disclosed

Standards

GRI
SASB
TCFD
ISSB
ESRS
Integrated Reporting Framework
GHG Protocol
EU Taxonomy
CDP
Other

Ratings

GRI level

Materiality

Assessment
Basis

Assurance

Provider
Level
Scope
Statement included
Metrics assured

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