Attached are plots of dust counts requested from 5 PM June 2 to 5 PM June 3. The dust monitor at location 14 in the LVEA (H2 PSL enclosure) is indicating a calibration failure. The dust monitor at location 8 in the LVEA (in the small clean room between HAM 2 and HAM 3) has been indicating for a while that this clean room is not clean. This could be because the prefilter on one of the fan filter units is not in place: alog 6375