Waste Water Management in Supporting Sustainable Tourism in Girsang Sipangan Bolon District

. Girsang Sipangan Bolon District, Simalungun Regency, is one of the entrance gates to Lake Toba and has an area of 126 km2 with a population of 18,915 people. Parapat Village is the largest sub-district in this sub-district


Introduction
Sustainable tourism is essentially a guarantee that natural, social, cultural and environmental resources can be utilized and passed on to the next generation. Sustainable tourism is not only at one point, but continuously rotates, regenerates itself, and develops for the better [1].
Sustainable tourism is tourism that prioritizes the current generation without forgetting the interests of future generations. Sustainability of community employment opportunities, education on tourism benefits, maintenance of cultural identity, and maintenance of natural and ecological conditions are some of the parts that may be passed on to future generations.
Sustainable tourism also needs to maintain tourist satisfaction and ensure meaningful experience to tourists, increase their awareness of sustainability issues and promote eco-friendly tourism practices among them [2].
The history of tourism in the Lake Toba area is a form of sustainable tourism management. This [3] can be seen from the timeline of the tourism trip which was successful, but slowly faded in the next period [4]. The area of Lake Toba itself lies in 7 districts, namely Toba, North Tapanuli, Humbang Hasundutan, Simalungun, Dairi, Karo, and Samosir, according to the Spatial Structure Around Lake Toba in the RTR in the Lake Toba area and its surroundings. Lake Toba Area (KDT) based on PP No. 50 of 2011 was chosen as the National Tourism Strategic Area (KSPN) because it has the main function of tourism or has the potential to affect one or more aspects, such as economic, social, cultural, environmental sustainability, and others.
For this reason, it is necessary to implement sustainable tourism development and management in this area. The development of the Lake Toba area means that management is not only centered on Lake Toba itself, but the city area that surrounds Lake Toba. Girsang Sipangan Bolon District, Simalungun Regency, is one of the entrance gates to 4Lake Toba and has an area of 126 km 2 with a population of 18,915 people. Parapat Village is the largest sub-district in this sub-district, and has long been famous for its tourism. Infrastructure facilities and infrastructure to support tourism have also been built since the 1990s. Various action plans are programmed to develop tourism in the area, initiated by the central government, local governments, and several agencies and agencies to support sustainable tourism in the area.
Referring to UNEP-UNWTO [5] and strengthened by the results of research by Lu & Nepal [6] which states that the definition and use of sustainability indicators is a major component in the process of planning and managing sustainable tourism, this research will use the main issues and indicators of development sustainable tourism in a tourist destination (Baseline Indicators Of Sustainable Tourism Development for Tourism Destination) by UNWTO [5]. One of the indicators of sustainable tourism is environmental issues, since the city of Parapat, which was dominated by the hotel and restaurant industry, has been hit by the issue of waste. Many hotels and restaurants are suspected of dumping waste in Lake Toba.
This study will examine the management of liquid waste in Girsang Sipangan Bolom District in an effort to support sustainable tourism in Lake Toba. The issue of liquid waste becomes important in an effort to overcome future problems regarding the image of positive destinations and the sustainability of biodiversity in the Lake Toba regional.

Existing Condition of Wastewater Management in Girsang Sipangan Bolon District
Currently, there are 2 (two) domestic wastewater treatment systems that are commonly used, namely the local sanitation system (on-site system) and the centralized sanitation system (offsite system). A centralized sanitation system is also called a piping system because to drain wastewater to be treated to a centralized installation and for its collection and distribution, a piping network is used. While in the local sanitation system, although pipes are used, the volume is very small, but the processing is individual/communal on a small scale.
The condition of the wastewater management system in Simalungun Regency is basically a local (individual) sanitation service system. Currently, Simalungun Regency is not yet equipped with infrastructure facilities for STP (Stool Treatment Plant), but has several centralized systems (communal scale) and regional scale in Parapat District.

Research Method
This study uses descriptive methods, or research models, to carefully and in-depth study specific explanations / expressions and social phenomena without intervention or hypothesis [7]. The main data is qualitative because the main research approach used is qualitative. However, to complete the analysis of the qualitative data, quantitative data is also presented, with the understanding that this study uses a qualitative paradigm with the data. Explore and deepen social phenomena without making hypotheses. The main data is qualitative because the main research approach used is qualitative. However, quantitative data are also presented, with the understanding that this study uses a qualitative paradigm complemented by quantitative data to complete the qualitative data analysis.

Discussion and Result
The data at the research location shows that there is no seriousness of the relevant stakeholders to deal with this problem, eventhough Lake Toba is famous by nature and culture tourism.
Nature and cultural tourism has become a major aspect in most tourist destinations, arguably accounts for around 40% of international tourism flows [8]. Standardized wastewater management system, except perhaps accommodation businesses (hotels) that have international standards such as the Niagara Hotel in Parapat. Although they could not show the data to the researcher, the informants were very confident in stating this condition. As an act of confirmation of information received by researchers from informants from previous government elements, in carrying out observations made on accommodation businesses around Lake Toba, it is indeed very difficult to find hotel businesses that already have waste treatment systems, such as swimming pools. storage and deposition before being released into the wastewater stream.
The problem is, out of a capacity of 3,000 connections that can be served by this system, only 300 connections (10%) use it [13]. This is due to the lack of public awareness, especially hotels and restaurants, to channel their waste water into the wastewater management system that has been provided and are more likely to dispose of it directly into Lake Toba. For the level of accommodation, based on the information received, it turns out that there are only 3 (hotels) that use these facilities, namely Aek Sere Hotel, Darma Agung Beach Hotel, and Inna Parapat Hotel.

Conclution
Solving the problem of waste issues in sustainable tourism can be overcome by implementing policy directions according to UNEP & UNWTO [14] namely by implementing policies to ensure the environment in the Lake Toba area with the following policy directions: (A) Reducing the use of chemicals that can harm the environment; (B) Reducing the discharge of waste into the environment and using a centralized waste disposal system; (C) Supervision and monitoring of newly established tourist facilities.
Solving problems in sustainable tourism development is a task for tourism stakeholders and the people who live and travel. The problems that arise also illustrate the lack of tourism management in tourist destinations [15].