Figure 18. The undisturbed sediment area in Reservoir R16. 29 October, 2016.
Figure 22. Crew members begin cleaning of sediment and algae. 26 October, 2016
Figure 23. The cleaned portion of exposed floor. Proper care of this water source will require periodic cleaning of the entire reservoir floor, at times when the entire water supply is used up. 27 October, 2016.
Figure 8. Crew removing building blocks from Reservoir R31. 20 October 2016.
Figure 17. Close up view of quarry marks. Below the 10-cm scale stick the groove in which wood wedges soaked with water were jammed is clearly visible. Because of the fine-grained igneous texture, the basalt blocks split of smoothly, similar to a flint sliver knapped from a core. 1 November, 2016.
Figure 3. Excavation of the rubble approaching completion. 25 October 2016.
Figure 11. Reservoir R19 with soil heaps; looking to southwest. 11 Oct 2016.
Figure 21. The dry south west corner of Reservoir 13 with its deposit of plastic bottles on top of algae ‘rooted’ in about 3 cm of new sediment. 26 October, 2016.
