Any person who experiences unnecessary hardship by reason of this Subpart may apply to the Lake George Park Commission for a variance from this Subpart subject to the standards, procedures and conditions required by 6 NYCRR Subpart 645-8. Notwithstanding the failure of an applicant to demonstrate unnecessary hardship, the commission may grant a variance upon a showing by the applicant that the proposed project or activity incorporates best technologies available, as determined by the commission, for wastewater and stormwater management. Upon any application for a variance, the commission may coordinate its review of the variance application with the review of the project or activity by other involved agencies.