Which of the following is a consequence of improper excess concrete disposal?

Improper disposal of excess concrete can lead to pollution of local water sources, making this the correct choice. When concrete waste is not disposed of in a regulated manner, it can leach harmful chemicals and heavy metals into nearby water systems, adversely affecting aquatic life and potentially causing public health issues. Concrete contains substances that, when broken down, may release pollutants into the soil and water, leading to long-term environmental damage.

The other options do not accurately reflect the consequences of improper concrete disposal. Increased recycling options can be associated with responsible disposal practices, which typically encourage recycling rather than improper disposal. Enhanced soil integrity is not a likely result of improper disposal; in fact, such practices can lead to soil contamination. Finally, better concrete quality is unlikely to be achieved through improper disposal, as that often involves waste that is not reused or processed correctly.