Clean water is an unlimited and sustainable need that must be fulfilled every day and meet an appropriate standard in terms of quantity and quality. The research objective in this study was to analyze the quality of water in thirty freshwater springs and twenty four brackish springs in the karst area of Buton Tengah Regency to achieve sustainable water resource management. Data on the quality of freshwater springs and brackish water springs chemically and biologically have been analyzed in the biology laboratory of FMIPA Universitas Halu Oleo, then the results are compared with the standards for water quality contained in the regulations of the Minister of Health and Government Regulation of the Republic of Indonesia. The results showed that the freshwater springs in Talaga Raya District exceeded the water quality standards for hardness parameter, while the brackish springs in Mawasangka Tengah, Mawasangka Timur, Lakudo, and Mawasangka Districts has exceeded the water quality standards for parameters of total dissolved solids, hardness, and chloride. However, these parameters are relatively easy to overcome so that the use of freshwater springs can qualify as drinking water, while the use of brackish springs should be used to meet domestic non-drinking water needs.

Sungai Langkapa merupakan sumber air baku yang digunakan untuk memenuhi kebutuhan air bersih untuk penduduk Kabupaten Bombana. Penelitian ini bertujuan untuk menganalisis dan menetapkan status mutu air Sungai Langkapa  sebagai sumber air baku Perusahaan Daerah Air Minum (PDAM) Kabupaten Bombana. Metode yang digunakan yaitu (1) analisis indeks pencemaran. Hasil penelitian ini yaitu pada stasiun I diperoleh nilai indeks pencemaran sebesar 3,01, stasiun II sebesar 2,97 dan pada stasiun III sebesar 2,75. Beberapa parameter yang tidak memenuhi baku mutu kelas 1 yaitu DO dan BOD. Sehingga status mutu air Sungai Langkapa masuk klasifikasi cemar ringan. Kata Kunci ; Air, Sungai, Pencematan

The Rawa Aopa Watumohai National Park area (TNRAW) is an administrative area of East Kolaka Regency and is in direct contact with the TNRAW area, so community activities to use TNRAW as business land cannot be stopped. This study aims to analyze potential TNRAW conflicts and provide direction for problem resolution. This study combined the survey method with a participatory approach with the community and TNRAW managers. The results showed several problems encountered in villages included in the TNRAW area, including encroachment and illegal logging, land sale and purchase, land certification, settlements within the area, plantations within the area, rice fields in the area, construction of facilities and infrastructure by the government, recognition of village administration in the area, allocation of village funds and waterlogging and overfishing. Community stakeholder actors have a negative influence or role in the TNRAW area. The role of the Southeast Sulawesi Provincial Public Works Office, Universities, Non-Governmental Organizations (NGOs), and the Ministry of Environment and Forestry (KLHK) as stakeholder actors is positive for both the community and TNRAW. Recommendations for problem resolution directives include: 1) increasing community participation through continuous empowerment and assistance so that adverse roles of TNRAW can be minimized, 2) increasing the role of stakeholders to coordinate with TNRAW, especially concerning land legality and community agricultural activities within the TNRAW Area, 3) solving various problems in TNRAW through mutually beneficial mechanisms between the community and TNRAW,   The solutions offered must, of course, be following applicable laws and regulations.

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This research aimed to monitor and evaluate the performance of the Laeya Watershed, South Konawe Regency, Southeast Sulawesi Province. The method used a survey with a scoring technique using the flow regime coefficient, annual flow coefficient, sediment load, flood, and eater use index parameters based on the Regulation of the Minister of Forestry of the Republic of Indonesia Number 61 of 2014. The results showed that the performance assessment of the Laeya Watershed based on the aspect of water management was classified into a good class with a value of 73.05, with each of the sub-criteria flow regime coefficient (4.24 or very low class), annual flow coefficient (0.31 or medium class), sediment load (7.73 or low class), flooding (flood frequency 1 time/year or high class ) and water use index (4,228.60 or moderate class). The conclusion was that the performance of Laeya watershed management is quite good.