Public utilities and public and institutional uses shall be permitted as conditional uses in the zones indicated in Section 122. Because of the wide range of uses which constitute public utilities and public and institutional uses, no specific regulations are contained in this subsection. Each use shall be evaluated by the Planning Board and standards imposed based on the following:

Based on the above evaluation, the Planning Board may require alternative site design arrangements, modifications and improvements in order to mitigate any potentially adverse impacts of the proposed use.