ࡱ> 02/#` bjbj\.\. .>D>D  #  $hA     ^ 2 ~  ` :J  0#R ,H ~ ~ $ph T, #  California Regional Water Quality Control Board North Coast Region Interoffice Communication DATE: June 29, 2007 TO: John Short SUBJECT: Inspection of City of Cloverdale Wastewater Treatment Facility (WDID No. 1B84032OSON) On June 28, 2007, I inspected the subject facility accompanied by the Citys lead operator, Jay Robinson, and assistant operator Darren. I met with Jay and Darren briefly to discuss the proper way to calculate the percent removal for BOD and total suspended solids and we talked a little about electronic reporting. We also talked about groundwater monitoring and the need to submit groundwater elevation data for each groundwater monitoring event. Inspection The treatment plant and laboratory are clean and well-maintained. There was a light odor at the plant during the time of my inspection. Headworks. Both bar screens are equipped with Spiral Kleen unit which keeps fecal matter in suspension so that it does not get deposited into the screenings dumpster. There were no odors at the headworks. Treatment. The facility is designed to treat an ADWF of 1.0 mgd in a series of ponds. Treatment consists of a primary aeration using a Parkson Biolac extended aeration system, a secondary aeration pond equipped with eight aerators, and a settling/polishing pond. The aerators work on timers. Each pond contains baffles to improve flow and minimize the potential for short-circuiting. Two aerators were running in the secondary aeration pond (one in each cell) and one was running in the first cell of the settling/polishing pond. Disposal. The facility discharges year-round to seven evaporation/percolation ponds, located adjacent to the Russian River. Six of the seven ponds are maintained to maximize percolation by ripping the pond bottoms each summer to increase the pond permeability. Pond 7 is never ripped because it is maintained for use as an equalization pond during high winter flows. Disinfected, secondary effluent was being discharged to Pond 2 at the time of the inspection. This percolation pond had less than one foot of effluent in the eastern end of the pond The remaining six percolation ponds were not in use and were essentially dry. A work crew was working on removing vegetation along the edge of each percolation pond. ^l = G  %.OhvhL >*OJQJ^JhvOJQJ^JhvhL 5OJQJ\^JhvhvOJQJ^JhvhL OJQJ^JhvhL 5OJQJ^J0CD^_st < = $% ^`$a$,1h/ =!"#$% @@@ NormalCJ_HaJmH sH tH :@: Heading 1$@&5\DA@D Default Paragraph FontVi@V  Table Normal :V 44 la (k@(No List 0CD^_st<=  $%0000000000000000000000   D,L Dkkd t" <  006  5;; 8*urn:schemas-microsoft-com:office:smarttagsCity9 *urn:schemas-microsoft-com:office:smarttagsplace9 *urn:schemas-microsoft-com:office:smarttagsState=*urn:schemas-microsoft-com:office:smarttags PlaceName=*urn:schemas-microsoft-com:office:smarttags PlaceType