Prevention of Water Pollution - Usage of Sludge, Regulations (5764-2004).​

These Regulations, by the Ministry of the Environment in collaboration with the Ministry of Health and the Water Council under the Water Law and other laws, aim to prevent water source pollution and environmental degradation as a result of improper disposal of sludge originating from municipal sewage treatment plants. The Regulations require wastewater treatment plants to stabilize and treat the sludge they generate as a condition for agricultural use or soil conditioning. They also establish maximum limits for heavy metal and pathogen concentrations and odor limits on sludge designated for agricultural use, set recording and laboratory testing requirements, define specific uses for different classes of sludge (A and B), set limitations on areas of sludge use, and prescribe requirements for warning signs, transport and storage.