STUDI EVALUASI DAN PENGEMBANGAN JARINGAN DISTRIBUSI AIR BERSIH DI SUMBER ALAM SELOKAMBANG, KECAMATAN SUMBERSUKO, KABUPATEN LUMAJANG

Water is one of the daily needs of living beings, especially humans. In addition to being used as irrigation for rice fields and gardens. Water is also consumed for drinking, washing, cooking, and bathing. So clean water is very important for human survival. The clean water distribution network in the Selokambang natural source flows through 4 sub-districts, namely Sumbersuko, Lumajang, Sukodono, and Tekung sub-districts. The distribution is not evenly distributed, along with population growth, so it is necessary to develop so that water can flow more evenly. By knowing how much clean water is needed in 2022 and the year of the 2032 development plan as well as the pipeline development plan. The analysis of the number of population growth until 2032 uses the Arithmetic method resulting in the projection of 218137 people. In 2022 the service level will be 23.901%, PDAM Tirta Mahameru in the next 10 years will increase the service level by 13.88%, development will be carried out nodal in existing areas due to increased demand, enlargement of pipe diameters, and addition of nodals in areas that have not been flown. Development in 2032 can operate optimally by serving 37.781% of the total population of 4 sub-districts