Orrie, I visited the North End Treatment Plant last week and had the pleasure of presenting a summary of its performance over the last 5 years to your old client. Your totally innovative scheme to flush the biofilter at night and do without a clarifier has worked brilliantly. I mentioned to your client that I had never seen a treatment plant in Western Washington with a lower effluent suspended solids concentration. Pure Orrie. Sorry this note is late! Ciao, Randal Samstag