. Contractor shall check-in with the Facility Supervisor upon each service call to provide verification the service has been provided. B. Contractor shall comply with requirements of the Uniform Federal Accessibility Standards (UFAS) in that a wheelchair accessible portable toilet unit be placed on-site at each location. C. Contractor shall provide the portable chemical toilets, all necessary chemicals and servicing to ensure they are clean and serviceable. D. Servicing shall be performed three (3) times per week. E. All quotations for additional services not covered under this Agreement are to be provided to the State at no cost by the Contractor. F. Contractor shall keep portable toilets in good, clean, and safe operating condition, including washing all portable toilets inside and out (walls, floors, toilet seats, and ceilings) using AquaKem cleaner or equivalent to ensure proper sanitation. G. Contractor shall refill each portable toilet to minimum of ten (10) inches with a mixture of clean water and Aqua-Kem cleaner or equivalent product, with a ratio of chemical to water of 20/80. H. The Contractor must add deodorizing liquid to each portable toilet tank.