Md. Code, Public Utilities § 21–201

In this subtitle, “water supply, sanitary sewer, or stormwater management project” includes a:

(1) water main, sewer, or drain or appurtenance of a water main, sewer, or drain;

(2) fire hydrant;

(3) reservoir;

(4) water purification plant;

(5) tank;

(6) pumping station; and

(7) sewage disposal plant.