ATTENTION: TREATMENT PLANT REPRESENTATIVES Prepare your stabilized sample entries for the Residuals and Biosolids Beauty Contest held at Tri-Con!! The Residuals portion of the Beauty Contest is NEW this year. Register and drop off your entries in the EXHIBIT HALL at the Tri-Association Conference. Judging will take place on Wednesday, August 31st. Plaques will be presented to the winners in the following 4 categories: