LOOKING AT THE WILL DANGER OF WASTE WATER IN TPA TEMESI, GIANYAR-BALI DISTRICT

Human activities in activities always leave residue or rubbish that is considered unnecessary anymore related to waste items, namely rubbish and waste. Solid waste is a common pollutant that can reduce the aesthetic value of the environment, bring various types of diseases, reduce resources, cause pollution, clog the airways and various other negative impacts. In developing countries, waste is generally collected at disposal sites using the Sanitary Landfill system (Johanis, 2002). Sanitary Landfill is a waste management system that develops basin areas with certain conditions, namely the type and porosity of the soil, where the bottom of the basin is coated with geotextiles to prevent leachate infiltration in the soil and is equipped with leachate channels. The existing landfill sites in Indonesia have not yet fully implemented the Sanitary Landfill system and most are still applying the Open Dumping system, which is garbage piled up without a layer of geotextiles and leachate channels. The result is ground water and air pollution around the landfill.
               The existence of the landfill as a container for waste disposal and processing is expected to be a means of implementing environmentally sound development. A waste management program cannot be said to be successful without solving problems to the final processing stage properly. This stage is the most important thing in waste management in relation to the problem of environmental pollution. Therefore, the success of a waste management program is very much determined by the waste management at the TPA. Efforts to manage waste both large and small scale must reach the goal of environmentally friendly waste management.
               The construction of the landfill should consider aspects of the physical condition of the landfill, the type and characteristics of the waste, the financial capability and supporting infrastructure. Without considering these aspects, it will cause environmental pollution, such as the formation of leachate seepage which can contaminate surface water and underground water pollution.
 
Likewise, the Temesi Final Processing Site (TPA) in Gianyar Regency is an example of a TPA that applies an Open Dumping system. This landfill service covers all the garbage in the city and surrounding areas. The waste that is disposed of in this place is mostly organic waste originating from markets and household waste. This causes garbage to decompose faster and produce pollutants that can pollute ground water. Water in waste results from the decay process generally contains chemicals, bacteria and other impurities that can seep into the ground and eventually will contaminate underground water.

Geographically, the position of the Temesi landfill is in the southeast of the city of Gianyar, which is located at coordinates 8o33'70 "LS and 115o20'40 East BT with a height of ± 191 m to ± 196 m above sea level.
               Almost all of the area surrounding the landfill is paddy fields and some settlements. In the north of the landfill is a rice field and residential area. A vast expanse of rice fields is also found in the east and south of the landfill. The settlement located east of the landfill is a resident who works as a scavenger looking for used goods in the landfill. In the south there are several houses that work as farmers. Garbage collected here will undergo a process of decay due to no O2 entering. This results in the formation of leachate which the longer the amount of leachate will increase along with the increase in the volume of waste. The location of the waste disposal center which is located relatively high than the surrounding area, will cause the leachate to flow and seep into the lower areas around it.
The results of observations in the field prove that Temesi TPA in Gianyar Regency has violated Article 29 paragraph 1 point f of Law Number 18 of 2008 concerning the prohibition of garbage disposal with an open dumping system. The use of open dumping system in Temesi Gianyar TPA has a negative impact on the surrounding environment, namely leaking out of the landfill area and contaminating shallow ground water sources in the vicinity. This is reinforced by the results of research conducted by the Geoelectric method, in which the soil layers in the Temesi Gianyar landfill area and in several areas around it, showed the presence of leachate which mostly seeped to the south of the landfill for more than 400 m. Leachate is on average at a depth of 1.55 - 6.91 m. Leachate accumulation
there are many at a distance of 20 m, 50 m, and 400 m to the south of TPA Temesi Gianyar. The points of accumulation are at coordinates 80 33 '715' - 80 33 '719' 'LS and 1150 21' '1150' '1150 21' 018 '' BT which is about 20 m south of the landfill. Leachate accumulation is also found at a distance of 50m south of the landfill at coordinates 80 33 '644' '- 80 33' 641 '' LS and 1150 20 '979' '- 1150 20' 977 '' BT, and at a distance of 400 m to the south TPA there are still leachate accumulations at coordinates 80 33 '755' '- 80 33' 756 '' LS and 1150 21 '017' '- 1150 21' 015 '' BT. To avoid the wider negative impact of leachate seepage on the environment around Temesi Gianyar TPA, it is recommended that all agencies and related parties who are responsible and responsible for the management of Temesi Gianyar TPA conduct a deeper study and change in the waste treatment system (from an open dumping system to the system sanitary landfill or landfill control system). For people who live around the Temesi Gianyar landfill area, especially in areas where leachate is identified, so as not to use shallow ground water sources around the landfill as daily water consumption.
there are many at a distance of 20 m, 50 m, and 400 m to the south of TPA Temesi Gianyar. The points of accumulation are at coordinates 80 33 '715' - 80 33 '719' 'LS and 1150 21' '1150' '1150 21' 018 '' BT which is about 20 m south of the landfill. Leachate accumulation is also found at a distance of 50m south of the landfill at coordinates 80 33 '644' '- 80 33' 641 '' LS and 1150 20 '979' '- 1150 20' 977 '' BT, and at a distance of 400 m to the south TPA there are still leachate accumulations at coordinates 80 33 '755' '- 80 33' 756 '' LS and 1150 21 '017' '- 1150 21' 015 '' BT. To avoid the wider negative impact of leachate seepage on the environment around Temesi Gianyar TPA, it is recommended that all agencies and related parties who are responsible and responsible for the management of Temesi Gianyar TPA conduct a deeper study and change in the waste treatment system (from an open dumping system to the system sanitary landfill or landfill control system). For people who live around the Temesi Gianyar landfill area, especially in areas where leachate is identified, so as not to use shallow ground water sources around the landfill as daily water consumption.