Md. Code, Environment § 5–5B–01

(a) In this subtitle the following words have the meanings indicated.

(b) “Expanded water appropriation permit” means a revised permit granting a significant increase in the withdrawal of water authorized under the existing water appropriation permit.

(c) “Public water system” has the meaning stated in § 9–401 of this article and is a water system located in the State.

(d) “Water conservation” means the use of practices, techniques, and technologies that:

(1) Reduce the consumption, loss, or waste of water;

(2) Improve efficiency in the use of water; or

(3) Make more efficient use of water treatment infrastructure.