(A) For every group of ten trailer sites or fraction thereof, one flush tank water closet, one urinal stall and one washbasin for men and one flush tank water closet and one wash basin for women shall be provided.
(B) For every group of 20 trailers or fraction thereof to be accommodated, one shower or bathtub for men, one shower or bathtub for women, one slop sink and one double compartment laundry tub shall be provided.
(C) The required sanitary facilities shall be within 200 feet of each trailer site.
(D) The required sanitation facilities shall be equipped for lighting and shall be lighted each night from hour after sunset to hour before sunrise.
(`77 Code, § 52.17)