| dc.description.abstract | Groundwater is the main domestic water supply of the population of the Yogyakarta Special Region, both in
the urban and as well as in the rural area due to its quantity and quality advantages. The rapid population growth has
caused an increase of groundwater demand, consequently it is facing some problems to the sustainability of groundwater
supply. Lowering of groundwater level has been observed in some places, as well as the degradation of groundwater quality.
Earthquake which stroke Yogyakarta on 27 May 2006, damaged buildings and other infrastructures in the area,
including roads and bridges. It might also damage the underground structures such as septic tanks, and pipes underneath
the earth surface. It might cause cracking of the geologic structures. Furthermore, the damage of underneath infrastructures
might create groundwater quality changes in the area. Some complains of local community on lowering and increasing
groundwater level and groundwater quality changes were noted. Field observation and investigation were conducted, including
collection of groundwater samples close to (the) pollution sources. Laboratory analyses indicated that some parameters
increased to exceed the drinking water quality standards. The high content of Coli form bacteria possibly was caused by
contamination of nearby septic tanks or other pollution sources to the observed groundwater in the dug well. | en_US |
