Page 33 - 2019 Sustainability Report

WATER AND THE NEEDS

OF OUR COMMUNITIES

Not only do we focus on ensuring that our discharges do
not diminish the quality of local water resources, we also “Importantly, we implement water
are committed to being responsible users of the available management practices recognizing that
water in the communities in which we operate. Martin clean and reliable water is also critical to
Marietta’s production processes rely on water. Importantly, our local communities.”
we implement water management practices recognizing
that clean and reliable water is also critical to our local Areas with high water stress are those with
communities. a range of 40 percent to 80 percent and areas with
extremely high water stress are those greater than 80
To this end, in 2018 we undertook to examine the water percent. We analyzed our operating locations by zip code,
stress levels of these communities, measured as a ratio using the World Resources Institute’s Water Risk Atlas tool,
of annual water withdrawals to total available annual known as Aqueduct. A profile of our building materials
renewable supply. A higher percentage indicates that there operations (which includes all businesses other than
are more water users competing for the water resource. Magnesia Specialties) is shown below:

32 18

aggregates locations ready mixed concrete
in areas classified locations in areas classified
as high water stress as high water stress

40 1 24

aggregates locations cement plant located ready mixed concrete
in areas classified as in an area classified as locations in areas classified
extremely high water stress extremely high water stress as extremely high water stress

33 / MARTIN MARIETTA / SUSTAINABILITY REPORT / 2019