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Den dulk if they had spray the pond for odor. He stated that they had. I asked him if he knew what they sprayed the pond with. He stated that he had some onsite and could show me the material. The material Mr. Den dulk had onsite was Invade by Rockwell Labs. It is a citrus oil and biological mixture that claims to help with odor and helps to break down the surface mat. There was some fly activity but it was light. On June 12, 2009 made a site visit to the Olivera Egg Ranch. The adult flies were heavy and there was fly breeding found along the ponds edge. I spoke with site personnel and asked if they had sprayed for flies. He stated that they had. The site personnel was actively trying to pump water off of the area with the excavated material. On June 19, 2009, Robert McClellon made a site visit. The visit started at Briggs Road. The odor from the pond was present, but the intensity was lower. The strongest odors were immediately adjacent to the pond. The onsite visit consisted of looking for fly larva. There was fly larva on the northwest corner of the pond and some found in the secondary overflow pond. I phoned Mr. Olivera and left a message directing him to spray the pond. On the west side of the primary pond there was a large number of adult flies. The pond has a small accumulation of a floating mat mostly on the east side of the pond. On June 22, 2009, Mr. Olivera called and indicated that he was onsite. He asked weather or not I had seen any fly pupa. I informed him that I did not see any, but I really did not look. I explained that he has the larva and the adult flies then he should have the pupa. I informed him that I would look specifically for that next site visit. I gave a brief description of the conditions at the site on June 19, 2009. June 24, 2009, I was onsite to view site conditions. The visit started on Briggs Road. I could smell the odors as I approached the pond on Briggs Road. There was a breeze blowing in southwest direction. The odors did not extend to the s turn on Briggs Road. The odors were the strongest near the pond. I then went to the area where the material removed from the pond was being dewatered. I spoke with site personnel and asked if they had sprayed the pond. He indicated that the pond was sprayed on 6123109. 1 checked the area for fly larva. There was some, but they were not very active (appeared to be sickely). I walked the north end of the pond and both the east and west sides for a distance (500 feet). I walked around the dewatering pond and did not find fly larva. There was a moderate adult fly population in the pond area. I did not witness any pupa. I walked the flush lane between house 10 and house 8. The flush lane in house 10 has a large amount of dead adult flies. There appeared to be some trouble with the flush system. There were solids that had got out of the flush lane indicating there had been a back up. The flush lane at the end of house 14 had backed up quite a ways and there was a large adult fly population. No pupa were found during the inspection, but the amount of adult flies onsite would indicate that fly breeding was occurring somewhere on the facility. August 30, 2009, I was onsite to evaluate the site conditions. I started on Briggs Road. The odor as I approached the "S"turn was moderate. I could smell the manure prior to the "S"turn, but was light. The closer to the pond I got the stronger the odor. There were some adult flies, but was light to moderate. There are other potential sources of fly