A California grocery meat packaging plant generates 100,000 gallons per day of wastewater containing animal fats and grease.  The wastewater collects in an aerated holding pond (one-day retention time) prior to discharge into the city sewer system.  A microbe-based product from Grace Dearborn was used in the past but had little success as BOD and TSS readings were increasing to an average of 300 mg/l and 1,500 mg/l, respectively.  BioWorld Waste & Odor Treatment was added twice a week to digest solids and lower BOD measurements.  Within one week, the BOD and TSS readings were reduced to an average of 20 mg/l and 30 mg/l, respectively.  On-going treatment has reduced the fats and grease in the system and maintained the low BOD and TSS readings.