SECTION 1. Chapter 307 of the acts of 1973, as amended by chapter 156 of the acts of 1978, chapter 491 of the acts of 1990, and chapter 11 of the acts of 2007, is hereby further amended by striking out section 2 and section 3 and inserting in place thereof the following sections:

Section 2. Whenever a connection is made, either directly or indirectly, to the town sewer system, or whenever the use of a sewer previously connected is subsequently changed as hereinafter provided, a permanent sewer privilege fee shall be assessed. Such fee shall be that which is in effect at the time the connection is made; or, in case of a change in use of a sewer previously connected, then the fee in effect at the time an application for a building permit is filed; or if no such permit is required then at the time an occupancy permit is issued; or, if none, then at the time the new use begins.

Section 3. The permanent sewer privilege fee shall be at the rate of seven thousand five hundred dollars per unit. For the purpose of this act, the number of units to be assessed on each connection shall be as follows:

A. Residential use.

1. Each single family building connected directly to the town sewer system shall be assessed as one unit.

2. Each dwelling unit in a multiple family dwelling, whether connected to the town sewer system directly or indirectly, shall be assessed one full unit and one-half unit for each additional unit in the dwelling. For the purpose of this section, multiple family dwellings shall be deemed to include, but not to be limited to, more than single family buildings, apartment houses, complexes, town houses, condominiums, or otherwise. If any units in a multiple family dwelling are individually owned or intended for individual sale they shall be assessed as one full unit.

B. Other uses.

For uses other than residential, there shall be an assessment of a minimum of one unit, and an additional unit for every ten thousand square feet of floor space, or major portion thereof, exceeding an initial ten thousand square feet, up to a total of fifty thousand square feet of floor space; and an additional unit for every twenty-five thousand square feet of floor space, or major portion thereof exceeding the initial fifty thousand square feet.

C. Changes in use.

1. When a sewer has previously been connected, in residential uses when additional dwelling units are added, a fee of one-half unit per additional dwelling unit shall be assessed.

2. When a sewer has previously been connected, in uses other than residential, when additional floor space is added, a fee shall be assessed of one unit for each additional ten thousand square feet of floor space, or major portion thereof, up to a total of fifty thousand square feet of total floor space of the building; and an additional unit for every twenty-five thousand square feet of floor space, or major portion thereof, exceeding the initial fifty thousand square feet.

SECTION 2. This act shall take effect upon its passage.