The Commissioner of Energy and Environmental Protection may execute with residents and nonresidents of this state leases of camping sites and buildings on the state parks for limited periods except as provided in section 23-16a and the proceeds from such leases, together with any other income resulting from the use of the state parks, shall be added to the Passport to the Parks account established pursuant to section 23-15h. Not later than May 1, 2010, said commissioner shall establish a schedule of fees payable for the leasing of state camping sites and buildings for residents of this state in amounts not greater than one hundred thirty-five per cent of the amounts charged according to the schedule of camping permit fees established by said commissioner and in effect as of April 1, 2009. Not later than May 1, 2010, said commissioner shall establish a schedule of fees payable for the leasing of state camping sites and buildings for nonresidents of this state in amounts not greater than one hundred fifty per cent of the amounts charged according to the schedule of camping permit fees established by said commissioner and in effect as of April 14, 2010. Annually, not later than the first day of November, said commissioner shall allocate from funds available for state park and forest areas in the then current fiscal year, an amount not less than fifty per cent of the portion of such fees collected in the preceding fiscal year directly related to the amount of increase in such fees as required in this section, to be used for purposes of maintenance and improvement of such state camping sites and buildings. Any fees paid for any lease under this section shall not be subject to refund under section 22a-10 unless (1) the lessee gives notice of cancellation to the commissioner not later than fourteen days prior to the date such lease is to commence, (2) the park is closed by executive order of the Governor, or (3) the lessee submits proof, satisfactory to the commissioner, of a death or serious illness in the family which prevents use of the facility during the period of the lease. The commissioner may deduct a reasonable service charge from any amount refunded pursuant to subdivisions (1) and (3) of this section.