The city water supply is sourced primarily from the slopes of Mount Rinjani and the city has a system of small dams to buffer the system. The water supply in Lombok is stressed, so accordingly the city's water supply is under strain. West Nusa Tenggara province is broadly threatened with a water crisis caused by increasing forest and water table damage and degradation. 160 thousand hectares of a total of 1960 thousand hectares are thought to have been affected. The Head of Built Environment and Security Forest Service Forest West Nusa Tenggara Andi Pramari stated on Wednesday, 6 May 2009 that, "If this situation is not addressed it can be expected that within five years it may be difficult for people to obtain water in this part of NTB (West Nusa Tenggara). Not only that, the productivity of agriculture in value added will fall, and the residents are experiencing water deficiency in their wells". High cases of timber theft in the NTB region are contributing to this problem.[11]