The EnviroWash concrete wastewater filtering and removal system provides builders and contractors with a solution for concrete wastewater compliance. The EnviroWash System is a concrete washout solution that prevents nearly 100% of rainwater and groundwater contamination throughout the building process with closed-loop concrete wastewater recycling, treatment, and handling technology. This new technology also will save large quantities of fresh water once it is licensed and used at building sites nationwide. Waste Crete Systems–EnviroWash.