ESG Metrics: SASB Index

SASB Index

The Sustainability Accounting Standards Board (“SASB”) is an independent, private sector standards-setting organization whose mission is to help businesses around the world identify, manage and report financially-material and decision-useful ESG information to investors and other stakeholders. According to the SASB’s Sustainable Industry Classification System®, the SASB standards for Waste Management (code IF-WM) and Oil & Gas Services (code EM-SV) are most relevant to our business operations. The index below summarizes our metrics based on SASB’s recommended methodology for disclosure of relevant topics for our industry.

SASB Code SASB Metric Unit of Measure 2020 Page
Green House Gas Emissions
IF-WM-110a.1 Gross global Scope 1 emissions 1 Metric tons CO2e 1,347  
Gross sequestered Scope 1 emissions2 Metric tons CO2e (231,764)  
Total global Scope 1 emissions Metric tons CO2e (230,417)  
Scope 1 coverage under emissions-limiting regulations Percentage (%) 0%  
Scope 1 coverage under emissions-reporting regulations Percentage (%) 0%  
IF-WM-110a.2 Total landfill gas generated Million British Thermal Units (MMBtu) n/a Path to Net-Zero Emissions
Landfill gas flared Percentage (%) n/a Path to Net-Zero Emissions
Landfill gas used for energy Percentage (%) n/a Path to Net-Zero Emissions
IF-WM-110a.3 Discussion of long-term and short-term strategy or plan to manage Scope 1 and lifecycle emissions, emissions reduction targets, and an analysis of performance against those targets n/a  

Carbon Sequestration;
Path to Net-Zero Emissions

EM-SV-110a.1 Total fuel consumed Gigajoules (GJ)
Metric tons CO2e
Percentage renewable Percentage (%) 0%  
Percentage used in on-road equipment and vehicles Percentage (%) 39%  
Percentage used in off-road equipment Percentage (%) 61%  
EM-SV-110a.2 Discussion of strategy or plans to address air emissions-related risks, opportunities, and impacts n/a   Environmental
Energy Management
SASB-Energy Management-130a.13 Total energy consumed Gigajoules (GJ)
Metric tons CO2e
Percentage grid electricity Percentage (%) 100%  
Percentage renewable Percentage (%) 0%  
Air Quality
IF-WM-120a.1 NOx (excluding N2O) Metric tons not meaningful Air Quality and Ecological Impacts
SOx Metric tons not meaningful Air Quality and Ecological Impacts
Volatile organic compounds Metric tons 19.35  
Hazardous air pollutants Metric tons 1.09  
IF-WM-120a.2 Number of facilities in or near areas of dense population Number 0  
IF-WM-120a.3 Number of incidents of non-compliance associated with air emissions Number 0  
Management of Leachate & Hazardous Waste
IF-WM-150a.2 Number of correction actions implemented for landfill releases Number 0  
IF-WM-150a.3 Number of incidents of non-compliance associated with environmental impacts Number 0  
Ecological Impact Management
EM-SV-160a.2 Discussion of strategy or plan to address risks and opportunities related to ecological impacts from core activities n/a   Ecological Impacts
Workforce Health & Safety
IF-WM-320a.1 Total recordable incident rate (TRIR) Rate 0.0  
Fatality rate Rate 0.0  
Near miss frequency rate (NMFR) Rate 0.0  
IF-WM-320a.3 Number of road accidents and incidents Number 0  
EM-SV-320a.14 Total vehicle incident rate (TVIR) Rate 0.0  
Average hours of health, safety, and emergency response training for employees Number   Workforce Health and Safety
EM-SV-320a.2 Description of management systems used to integrate a culture of safety throughout the value chain and project lifecycle n/a   Workforce Health & Safety
Critical Incident Risk Management
EM-SV-540a.1 Description of management systems used to identify and mitigate catastrophic and tail-end risks n/a   Critical Incident Risk Management
Management of the Legal and Regulatory Environment
EM-SV-530a.1 Discussion of corporate positions related to government regulations and/or policy proposals that address environmental and social factors affecting the industry n/a   Legal and Regulatory Management

1 SASB Code IF-WM-110a.1 Gross global Scope 1 emissions includes Metric tons CO2e for EM-SV-110a.1 “Total Fuel Consumed.”

2For details regarding calculation of sequestered GHG emissions, see "Milestone's Net Negative Carbon Emissions."

3SASB Code "SASB-Energy Management-130a.1" has been included in the SASB Index in order to provide Scope 2 emissions which is a key component of Milestone’s sustainability disclosure.

4SASB Code EM-SV-320a.1 also suggests disclosure of TRIR, Fatality Rate, and NMFR which are also included above in IF-WM-320a.1.

Activity Metric Unit of Measure 2020
Number of customers Number 669
Active landfills Number 2
Active slurry injection drilling waste disposal facilities Number 7
Total volume of liquids managed Barrels 8,004,221
Total volume of solids managed Cubic yards 19,779