Why is monitoring stormwater discharge important for Walmart?

Monitoring stormwater discharge is crucial for Walmart as it directly relates to the protection of local water quality. Stormwater can pick up pollutants such as oil, heavy metals, nutrients, and pathogens from impervious surfaces like parking lots and rooftops, which, if not managed, can flow into nearby waterways. By actively monitoring stormwater discharge, Walmart can assess the impact of their operations on surrounding ecosystems and water bodies, identifying any potential issues before they escalate.

This proactive approach aligns with environmental stewardship principles, ensuring that the quality of water in local streams, rivers, and lakes is maintained or improved. Effective monitoring also enables Walmart to implement necessary changes to their stormwater management practices, reducing the risk of pollution and enhancing overall environmental sustainability efforts.

Other choices, while they may have merit in certain contexts, do not capture the primary goal of stormwater monitoring in the same direct environmental impact context as the correct answer does.