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Biological Aerated Filter Pilot Test

The City of San Diego retained Brown and Caldwell to assist staff with conducting a pilot test to evaluate the biological aerated filter (BAF) process as a potential means of providing space-effective secondary treatment at the Point Loma Wastewater Treatment Plant (PLWTP). This report marks the culmination of the two-phase pilot study and provides results and findings of the 43-week pilot test. The report's conclusions and recommendations will assist in refining the budgetary cost estimate for increasing the level of treatment at the PLWTP and defining design criteria for the possible BAF facilities.