Page 32 - 2019 Sustainability Report

WATER MANAGEMENT

We use water for production, maintenance activities, Elimination System (NPDES) that contain site-specific
environmental controls and reclamation. We recognize limits designed to maintain the health of the receiving
that water availability is critical to the future of our water body and the aquatic species that call it home. We
communities and our operations. We also recognize use treatment systems designed to ensure that permit
that our diversion and discharge of water into the compliance is maintained and conducts regular monitoring
environment impacts our communities and the ecosystem. and reporting to ensure compliance.
We are committed to responsible and efficient water
management and continuously seek opportunities to In addition, stormwater discharges associated with
use renewable and recycled sources. As with our GHG industrial activity are regulated pursuant to the CWA.
emissions strategy, we invest in new processes and These regulations require that the site operate under
technologies following appropriate testing.
either a general permit applicable to all similar facilities
or a site-specific permit depending upon many factors.
In 1972, the U.S. Congress enacted the Federal Water The storm water permitting system is designed to minimize
Pollution Control Act, now known as the Clean Water and reduce pollution in the runoff from industrial facilities.
Act (CWA). This law, as amended, established the basic Sites must maintain a Storm Water Pollution Prevention
framework for regulating water pollution in the United Plan, implement Best Management Practices, and
States. Compliance with water quality requirements undertake certain sampling and reporting.
under the CWA is a critical aspect of Martin Marietta’s
environmental stewardship.
In 2019, we operated more than 400 facilities across
the United States and recorded a total of only seven
While we make significant efforts to reuse and recycle CWA-related violations, all of which were minor,
water in our processes, we do have discharges at or with aggregate penalties totaling $875.00.
from a number of our locations. In those cases, we have
obtained permits under the National Pollutant Discharge

Expansive lake created at reclaimed
site in Georgetown, South Carolina.

32 / MARTIN MARIETTA / SUSTAINABILITY REPORT / 2019