In this section, the following definitions apply:

(1) Water and Sewer System. Water mains and sewers and appurtenances thereof which are owned and maintained by the City of Philadelphia.

(2) Breakage. Any failure, leakage, breakage, collapse or blockage occurring in the system.

(3) Property Damages. The market value of real and personal property at the time of loss or destruction or the loss in market value of real and personal property at the time of damage. Personal injuries, consequential damages, loss of business and loss of property are not included.