AquaDisk and AquaDiamond cloth media filters have been approved by the State of California - Department of Health Services as acceptable filtration technologies for Title 22 reuse applications. Extensive evaluations conducted by researchers at the University of California – Davis tested the filters for their ability to meet turbidity requirements outlined in Title 22, under various hydraulic and solids loadings. Effluent turbidity values were consistently below 2 NTU without chemical addition.