1. Retail stores, offices, warehouses, and fish processors: one service unit for not more than six employees and one unit for each additional increment of not more than six employees;

2. Hotels, motels, and dormitories: one-half service unit for each room or unit serviced by bathing and/or toilet facilities. Hotels and motels with cooking facilities shall pay an additional one-half service unit for each room with cooking facilities;

3. Trailer courts and mobile home parks: one service unit for each rental space that is or may be used for hiring purposes to which sewer service is available;

4. Dining facilities: one service unit for each 200 square feet of patron area or portion thereof in a restaurant, bar, cafeteria, cocktail lounge or similar establishment;

5. Hospitals, rest homes and convalescent homes: one service unit for each three beds or fraction thereof;

6. Gas stations: two service units each;

7. Schools: one service unit for each 20 persons in average daily attendance at a public or private elementary school, high school or college. For the purpose of this subsection, average daily attendance is based on actual attendance which includes persons who are students, teachers and all school staff and administration;

8. Churches: one service unit for each church;

9. Theaters and auditoriums: one service unit for each 3,500 square feet of net floor area or fraction thereof; and

10. Laundromats: three-fourths of a service unit for each washing machine in any washing facility, the use of which is not strictly limited to occupants of the residential building, trailer court, or mobile home park in which the facility is located.