http://www.environmentalplan.com.au/management/how-to-manage-concrete-waste-water-on-construction-sites - Concrete waste water is abundant in harmful caustic potash and soda. These two chemical components can cause respiratory problems once dry and then transported by the wind. A lot of people acquire skin hypersensitivity and experience difficulty in breathing whenever caustic soda and potash are present in the air. Alternatively, in their wet form, they immediately work as toxins and cause the fatality of wildlife. It’s for such risks that building construction businesses need to follow the regulations and specifications when it comes to concrete waste water management.