Section 25-506 - Service to charitable institutions(a) In this section, "charitable institution" means an institution:(1) that is located in Montgomery County or Prince George's County; and(2) whose purpose is primarily charitable.(b) Except as provided in subsection (c) of this section, if a charitable institution does not discriminate against the entrance or care of residents of Montgomery County or Prince George's County, the Commission:(1) shall supply without cost up to 100 gallons of water per day for each resident of the charitable institution; and(2) may not charge the charitable institution a fee for sewer usage for the water supplied under item (1) of this subsection.(c)(1) The charitable institution shall install and maintain a water meter at its own cost.(2) The Commission may charge the charitable institution for:(i) the cost of reading the water meter; and(ii) sewer usage and water used in excess of 100 gallons per day for each resident of the charitable institution.