Scott L. Ed P. 6/15/15 Cleaned 33 meters ending at HNW-4-076. Removed lights and move to next section north. Test results posted here. 6/16/15 Rehang lights, vacuum support tubes, spray heavily soiled floor areas with water/bleach solution and begin cleaning beam tube. Cleaned 19 meters ending at HNW-4-077. 6/17/15 Cleaned 60.6 meters ending at HNW-4-080. A total of 3603 meters of tube have been cleaned to date.