In the event the Columbia rural fire protection district should lose territory by the annexation of the same to the city, the charges specified in Sections 2.38.050 and 2.38.060 shall be reduced in proportion to the area lost thereby on the basis of seventy-five dollars ($75.00) per square mile on an annual basis. If a square mile of territory shall be so lost there shall be a reduction of twenty-five dollars ($25.00) in the charge for rent and fifty dollars ($50.00) in the charge for services, which amounts shall be reduced proportionately in case the area lost is less than a square mile. This adjustment shall commence with the time the district starts to lose tax revenue by reason of such annexation. (Ord. 457 § 3, 1980: prior code § 30-6-9)