Page 119 - Martin Marietta - 2024 Sustainability Report
P. 119
SASB Index
Topic Accounting Metric Category Unit of Measure Code Report Section or Response
Energy (1) Total energy consumed, Quantitative Gigajoules (GJ), EM-CM-130a.1 (1) Total energy consumed: 1.3 million
Management (2) percentage grid Percentage (%) mWh
electricity, (2) Percentage grid electricity: We do not
(3) percentage alternative, currently track this metric but are
and considering this for future reports.
(4) percentage renewable (3)(4) Percentage alternative: We have
estimated that more than 38% of the grid
power available to us is renewable, but we
do not track the percentage of renewables
purchased on an account by account basis
but are considering doing so in future
reports.
See Greenhouse Gas Emissions and
Environment and Community First in this
Sustainability Report.
Water (1) Total fresh water Quantitative Thousand cubic EM-CM-140a.1 47 of our active aggregates sites are
3
Management withdrawn, meters (m ), located in areas of High Water Stress and
(2) percentage recycled, Percentage (%) 54 of our active aggregates sites are
(3) percentage in regions located in areas of Extremely High Water
with High or Extremely Stress, as defined by WRI Aqueduct Risk
High Baseline Water Stress Atlas Tool. In addition, 20 of our ready
mixed concrete sites are located in areas
of High Water Stress and 17 ready mixed
concrete sites are located in areas of
Extremely High Water Stress. We had one
cement plant located in an area classified
as Extremely High Water Stress. Taking
into account all of these sites, we had
27.6% of sites in regions with High or
Extremely High Baseline Water Stress.
We do not yet calculate or disclose total
fresh water withdrawn or percentage
recycled although we have taken many
initiatives to reduce water use particularly
in water stressed regions.
See Water Management in this
Sustainability Report.
Waste Amount of waste Quantitative Metric tons (t), EM-CM-150a.1 Our operations do not generate significant
Management generated, percentage Percentage (%) amounts of waste federally classified by
hazardous and percentage the U.S. EPA as hazardous. We have not
recycled undertaken to track the total amount of
waste generated at this time but will
consider doing so in future reports.
Percentage hazardous: Hazardous waste
designations and disposal regulations vary
by state. We adhere to disposal
requirements applicable in all states where
we operate.
See Waste Management in this
Sustainability Report.
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