(a)      When a water main or sanitary sewer is replaced or augmented by the WSSC to provide increased water or sewer service capability to abutting or connected property, and the necessity for the enlarged replacement or augmentation arises from any change in the use or zoning category of the property to be abutting or connected, the property derives a benefit from the enlarged or augmented facility.

      (b)      Benefit charges for the construction of the water or sewer system service shall be assessed, collected, and redeemed as provided in §§ 5-101, 5-102, and 5-103 of this title for the initial construction of the enlarged or augmented facility.

      (c)      Any unpaid portion of the initial benefit charge remaining shall be merged with the new benefit charge resulting from the enlarged or augmented facility, with the unpaid portion of the initial charge included as an increment of the single resulting charge only, during the remaining years of the initial charge.

      (d)      A property in the single family residential class which abuts the enlarged or augmented facility and that is subject to, or was previously subjected to and paid, a benefit charge for water or sewer line construction may not have imposed against it the additional charge until the classification of the property is changed by reason of change in use or on account of a zoning class change requested by the owner.