The objectives of this powerpoint presentation include: improve granular media filtration using engineered ceramic media; evaluate operational robustness and dependency on chemical coagulation; establish baseline from which to continue further mechanistic studies; and, evaluate microspheres as surrogates for Cryptosporidium. A brief overview of granular media filtration is provided, along with the experimental approach that included: initial microsphere tests; uncoagulated tests on lake water; semi- and fully coagulated tests on lake water; and, a recovery study. Preliminary conclusions found that: compared to a conventional configuration, ceramic media can offer up to 1.25 log improvement in Cryptosporidium removal, and up to 1.5 log improvement in oocyst-sized microsphere removal; throughout the trials, particle counts and turbidity measurements were lower in effluents from engineered media; correlation between microsphere and Cryptosporidium counts must still be evaluated, but has potential for experiments under these conditions; engineered media may offer turbidity and particle reduction advantage with less chemical dependency relative to conventional filtration, long-term performance must still be evaluated; and, coarse engineered media filtration head loss profiles are similar to those of conventional media but preliminary tests suggest that the ceramic media's greater surface roughness allows it to retain more solids than the conventional media. Includes tables, figures.