venues handle mixing station shall comply with the following requirements

(A) mixing station's main venue should be concrete hardening, hardening capacity venue to meet operational requirements. Concrete mixing plants according surrounded by low, the center of high principles, surface drainage slope of not less than 1.5%, the venue shall be installed around drains, gutters bottom using cement mortar plastering. Part of the appropriate regional office and precast concrete plant. (2) shall sump, settling ponds and sewage filtration ponds into the field area planning, factory designed, constructed and put into use. Forbidden to station wastewater directly discharged.