There may be situations in subdivisions or developments when a combination of land dedication and contribution in lieu of land are both advisable. These occasions will arise when:
A. Only a portion of the land to be developed is proposed as the location for a park or school site. That portion of the land within the subdivision falling within the park or school location shall be dedicated as a site as aforesaid, and a cash contribution in lieu thereof shall be required for any additional land that would have been required to be dedicated.
B. A major part of the local park or recreation site or school site has already been acquired and only a small portion of land is needed from the development to complete the site. The remaining portions shall be required by dedication, and a cash contribution in lieu thereof shall be required. (1999 Code § 10.05.13)