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6.D. - Page 3 of 170 Components of the Pre -Fabricated Public Restroom Facility The proposed public restroom is a pre -fabricated facility with three all -gender, family -focused, ADA - compliant stalls. The facility also includes an ADA water drinking niche and a chase that will function as a mechanical and storage room for the water feature, the irrigation system (which features grey water) and the electrical panel boxes. The design of the chase meets the unique needs of the project and will require close coordination between the water feature manufacturer, Vortex Aquatic Structures International, and the City's project contractor, Robert A. Bothman, both of whom have previous experience with PRC structures. The restroom fabrication takes 180 days. This includes the slab and permits from the State of California. This will allow the City to obtain the product in less time and have a relatively short install time to avoid any delays in the project. Some of the high quality features and components are: 1. Waterproof concrete floors/slabs: Concrete is naturally absorbent up to 30% as one sees when it rains on sidewalks and they turn darker from water absorption. Inside a restroom, concrete that is absorbent is a health issue and an odor issue, as organics from urine to solid human waste become absorbed into the floors creating breakdown gasses and hygiene issues. PRC solved this problem decades ago creating such a dense concrete with imported additives from Europe that densify and fill the voids in traditional concrete to reduce proven, by national testing laboratory results, concrete that is only 2.5% absorbent. PRC is the only firm nationwide to provide this solution. 2. Rust -free toilets and urinals: Stainless steel toilets that are more vandal resistant have been in service for decades but they are made with 304T stainless steel that when confronted with urine turn black inside the bowl or rust as 304 grade stainless can rust. PRC is the only firm nationwide who only builds their stainless steel plumbing fixtures with grade 316 stainless steel that does not rust or turn black inside the bowl. 3. Anti -microbial touchable components: In support of better hygiene, PRC uniquely provides many components touched by visitors with an anti -microbial built in life treatment for our custom door handles, push door plates, toilet seats, toilet stall latches, toilet stall door pulls, etc. 4. Vandal proof screen vents: The maintenance costs of vent screens in public park restrooms have been excessive due to the removal of spider cobwebs and debris and because of replacement when vandalized. To avoid this, PRC uses 1/8" thick woven 316 grade stainless steel screens to prevent bird entry with opening of 1.25" to not allow nesting for spiders. When ordered, there is also the use of anti -insect coatings on the openings to deter insect nesting which eliminates the cost of nesting removal by a maintenance crew. 5. Z anti -microbial rubber coated door handles: Stainless door handles in direct Southern or Western exposures become very hot in the summer and deter use to open the doors. Traditional C door handles that are cooler because they are hollow are too easily broken off with a rock or baseball bat. PRC designed a Z door handle that becomes a latch guard, an unbreakable heavy stainless component and then we coat it with anti -microbial treatment impregnated into the stainless for life and finally coat the handle with cooling rubber to allow touch without burning one's hand. City of Redwood City 1017 Middlefield Road, Redwood City, CA. 94063 Tel: 650-780-7000 www.redwoodcity.org :.