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"Di Indonesia, jumlah penduduk pada tahun 2023 sebesar 278 juta jiwa yang naik menjadi 281 juta jiwa pada tahun 2024. Dengan populasi yang meningkat, ada kemungkinan ketidakseimbangan antara pasokan dan kebutuhan air tawar dimana hal ini dinamakan kelangkaan air. Maka dari itu, perlu sumber alternatif air bersih sebagai inovasi dalam pengelolaan sumber daya air untuk memastikan ketersediaan air bersih yang berkelanjutan. Salah satu solusi yang potensial adalah pemanfaatan air kondensasi dari sistem pendingin udara (AC) sebagai upaya konservasi air pada gedung bertingkat dimana pada daerah perkotaan, pembangunan gedung-gedung bertingkat semakin meningkat. Tujuan dari penelitian ini adalah menganalisis potensi air kuantitas dan kualitas kondensat AC pada Gedung Apartemen Samesta Mahata Margonda. Pengujian kuantitas menggunakan uji statistik metode two way ANOVA untuk melihat faktor perbedaan musim, faktor perbedaan waktu, dan faktor interaksi kedua faktor sebelumnya. Pengujian kualitas membandingkan hasil uji laboratorium dengan Permenkes No. 2 Tahun 2023 dan PP No. 22 Tahun 2021 untuk melihat potensi pemanfaatan. Hasil yang didapatkan adalah rata-rata debit AC 1 PK tipe split adalah sebesar 0,563 L/jam. Interpretasi data yang diperoleh dari hasil pengujian metode two way ANOVA adalah p- value faktor musim > 0,05, p-value faktor waktu > 0,05, dan p-value interaksi < 0,05. Pengujian kualitas kondensat AC dengan rentang sebagai berikut, suhu 20,8 – 23,3 oC, TDS 3 -34 ppm, kekeruhan 0,84 – 2,73 NTU, pH 6,71 – 7,34, besi 0 – 0,03 mg/L, konduktivitas 9 – 68 μS/cm, total koliform 2 – 49 MPN, warna sejati 0 PtCO, Nitrat 0,7 – 1,9 mg/L. Kondensat AC yang dihasilkan di Gedung Apartemen Samesta Mahata Margonda tipe AC split PK 1 adalah 2.533,5 L/hari atau 2,5335 m3/hari dan kuantitas dalam satuan bulan sebesar 76.005 L/hari atau 76,005 m3/hari. Pemanfaatan air kondensasi AC dapat dijadikan sebagai penyiraman tanaman dengan penghematan air dan biaya sebesar 95,8%.

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In Indonesia, the population in 2023 is 278 million, which is expected to increase to 281 million by 2024. With an increasing population, there is a growing possibility of an imbalance between the supply and demand of freshwater, resulting in water scarcity. Therefore, alternative sources of clean water are needed as an innovation in water resource management to ensure the availability of sustainable clean water. One potential solution is the utilization of condensation water from air conditioning (AC) systems as an effort to conserve water in high-rise buildings where in urban areas, the construction of high-rise buildings is increasing. The purpose of this study was to analyze the potential for water quantity and quality of AC condensate in the Samesta Mahata Margonda Apartment Building. Quantity testing uses a two-way ANOVA statistical test method to see the difference in season factors, time difference factors, and interaction factors of the two previous factors. Quality testing compares laboratory test results with Permenkes No. 2 of 2023 and PP No. 22 of 2021 to see the potential for utilization. The results obtained were that the average discharge of a 1 PK split type AC was 0.563 L/hour. Interpretation of data obtained from the results of the two-way ANOVA method test is the p-value of the season factor >0.05, the p-value of the time factor >0.05, and the p-value of the interaction< 0.05. Testing the quality of AC condensate with the following ranges, temperature 20.8 - 23.3 oC, TDS 3 -34 ppm, turbidity 0.84 - 2.73 NTU, pH 6.71 - 7.34, iron 0 - 0.03 mg / L, conductivity 9 - 68 μS / cm, total coliform 2 - 49 MPN, true color 0 PtCO, Nitrate 0.7 - 1.9 mg / L. The AC condensate produced in the Samesta Mahata Margonda Apartment Building, type AC split PK 1 is 2,533.5 L/day or 2.5335 m3/day and the quantity in monthly units is 76,005 L/day or 76,005 m3/day. The use of AC condensate water can be used for watering plants with water and cost savings of 95.8%."

"Air adalah kebutuhan pokok manusia yang jumlahnya akan bertambah seiring dengan pertumbuhan manusia. Sumber air baku Jakarta berasal dari Waduk Jatiluhur melalui Saluran Tarum Barat. Mutu air baku PAM Jakarta tercemar karena kegiatan antropogenik, padahal air baku yang akan digunakan seharusnya memenuhi baku mutu. Tujuan dari penelitian ini adalah menganalisis mutu air, kegiatan antropogenik di pinggir sungai yang menyebabkan penurunan kualitas air sungai dan menentukan strategi pemulihan air baku Jakarta. Pendekatan penelitian kuntitatif dan menggunakan metode gabungan kuantitatif dan kualitatif. Hasil penelitian, yaitu rata-rata mutu air pada 8 titik pemantauan dengan metode STORET tahun 2011-2015, yaitu: (-50), (-53), (-53), (-52), dan (-53), sehingga masuk kategori cemar berat. Berdasarkan IP tahun 2011-2015 rata-rata (4,117), (5,04), (5,341), (4,542), dan (4,831), sehingga air masuk kategori cemar ringan dan sedang. Kegiatan antropogenik di pinggir sungai, yaitu kegiatan MCK, membuang air limbah cair di badan sungai, membuang sampah, dan lainnya. Kesimpulannya adalah air Saluran Tarum Barat tercemar karena kegiatan antropogenik masyarakat di sepanjang pinggir sungai.

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The needs of clean water will increase in line with growth of human population. Currently, the main source of Jakarta?s raw water comes from Jatiluhur that flowed through West Tarum Channel. The water is polluted by anthropogenic activities, whereas raw water should fulfill first class of water quality. The aim of this study was to analyze the water quality status and anthropogenic activities on the riverbank which affect river?s water quality deterioration, and find the proper strategies to clean raw water in Jakarta. This research uses a quantitative research approach with mix-method.

The results of this research, using water quality of STORET method in 2011-2015 with the average in 8 monitoring samples are (-50), (-53), (-53), (-52), and (-53). They are classified as heavily polluted. Based on years of pollution index method in 2011-2015 had an average (4.117), (5.04), (5.341), (4.542), and (4.831), so that the water classified as light to lightly- and moderately-polluted. Anthropogenic activities along the riverbank, which are bathing, washing, and latrine activities, discharging domestic wastewater into river body, littering to the river, and others affect the the water quality of the river. The conclusion from this research is that the water in the West Tarum Channel has been contaminated by anthropogenic activities along the riverbank."

"Meningkatnya jumlah dan kepadatan penduduk Jakarta menyebabkan meningkatnya kebutuhan hunian. Keterbatasan penyediaan perumahan dan keterbatasan kemampuan daya beli masyarakat memunculkan permukiman yang dibangun sendiri oleh masyarakat. Sebagian warga dengan kemampuan terbatas terpaksa menempati lahan sekitar sungai dan danau. Keberadaan warga di sekitar danau berpengaruh terhadap keberlanjutan danau sehingga pengukuran kapasitas masyarakat menjadi salah satu langkah penting. Penelitian ini bertujuan untuk menguji apakah variabel aksi kolektif, pemberdayaan masyarakat, dan visi bersama mempengaruhi kapasitas masyarakat dalam konservasi Danau Cavalio dan Danau Kampung Bintaro, danau yang merupakan kolam retensi yang menampung debit air sungai Pesanggrahan yang dibangun untuk mengatasi banjir yang kerap melanda lokasi serta membandingkan pengaruh variabel aksi kolektif, pemberdayaan masyarakat, dan visi bersama terhadap kapasitas masyarakat dalam konservasi danau pada lokasi dengan jarak yang berbeda dari danau. Melalui 300 kuisioner yang disebar pada empat klaster di sekitar danau dengan tehnik Principal Component Anaysis PCA dan analisis regresi linier berganda, diperoleh hasil bahwa terdapat diferensiasi pengaruh variabel aksi kolektif, pemberdayaan masyarakat, dan visi bersama terhadap kapasitas masyarakat dalam konservasi danau, tetapi perbedaan tersebut tidak terkait dengan jarak lokasi dari danau. Variabel pemberdayaan masyarakat yang merupakan variabel yang paling berpengaruh signifikan terhadap kapasitas masyarakat dalam konservasi sumber daya air pada penelitian sebelumnya tidak terbukti. Sehingga, berdasarkan temuan pada penelitian ini, pemikiran bahwa masyarakat kota tidak dapat tinggal berdampingan dengan air tidak sepenuhnya tepat.

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The increasing number and density of Jakarta increased occupancy requirements. The limitation of the provision of housing and the limitation of the ability of the purchasing power of society gave rise to settlements that were built by the community. Most residents with limited capabilities was forced to occupy land around rivers and lakes. The presence of residents around the lake effect on sustainability of the Lake so that the measurement of the capacity of the community to be one of the important steps. This study aimed to test whether the variable is collective action, community empowerment, and shared vision affects the capacity of the community in the conservation of the Lake Lake and Kampongs Cavalio Bintaro, Lake which is retention ponds that hold discharge of river water building that was built to cope with floods that often hit the site and compare the influence of variable collective action, community empowerment, and a shared vision towards the capacity of communities in the conservation of the Lake on the location with a different distance from the Lake.

Through a detailed questionnaire distributed 300 on four cluster around the Lake with technical Principals Component Anaysis PCA and multiple linear regression analyses, obtained results that there is a differentiation of the influence of variable collective action, community empowerment, and a shared vision towards the community capacity for water reources conservation, but the difference is not related to the distance of the location of the Lake. Community empowerment of the variable which is the most influential variables significantly to community capacity in water resource conservation in the previous research was not proven. So, based on the findings in this study that the capacity of the community in the conservation of water resources are in the category of good, then the idea that society can not live side by side town with water is not entirely appropriate."

"Sumber air utama untuk wilayah Sukabumi tertumpu pada kawasan pegunungan Gunung Gede-Pangrango dan Gunung Halimun- Salak. Kawasan tersebut adalah hulu dari daerah aliran sungai Cimandiri yang mengalir ke selatan wilayah Sukabumi sampai ke Iaut di Kota Pelabuhanratu, ibukota Kabupaten Sukabumi.Pemanfaatan air di kawasan hulu berupa air tanah dan air mata-air selain untuk kebutuhan rumah tangga juga untuk industri. Keuntungan dari pemanfaatan air tersebut oieh industri umumnya belum disertai membayar beaya pemulihan.Penggunaan air cenderung meningkat secara eksponensial, sedangkan pasokan air cenderung melambat akibat rusaknya hutan di daerah tangkapan airnya. Internalisasi pengelolaan daerah tangkapan air untuk penyediaan air baku dilakukan untuk mengatasi masalah tersebutTujuan penelitian adalah mendapatkan gambaran kondisi air tanah dan perkiraan nilai air tanah melalui pendekatan perhitungan nilai ekonomi manfaat lokal daerah tangkapan airnya, persepsi dan keharusan pengguna air tanah untuk membayar beaya pengelolaan daerah tangkapan airnya.Hasii penelitian diharapkan dapat memberikan informasi untuk melestarikan sumberdaya air dan melestarikan fungsi lingkungan alam. Informasi dari penelitian ini dapat memperkaya khasanah pengetahuan untuk pertimbangan dalam perencanaan pembangunan daerah tersebut.Penelitian dilaksanakan dan bulan Januari sampai dengan Juni 2003 di Kecamatan Cicurug, Kecamatan Cidahu, Kecamatan Parakansalak dan Kecamatan Parungkuda di kaki Gunung Salak dalam wilayah Kabupaten Sukabumi. Daerah penelitian berada pada Kompleks Gunungapi Tua di wiilayah resapan utama dan juga berada di wilayah pelepasan. Penelitian bersifat ex post facto melalui pendekatan kualitatif dan kuantitatif. Data primer dan sekunder dikumpulkan dengan metode survei dan studi pustaka.Hipotesis yang diajukan adalah tersedianya air tanah akan berlanjut jika neraca air terjaga keseimbangannya dan daerah tangkapan air terlindungi.Hasii kajian memperlihatkan bahwa air tanah ada di 100-300 meter di bawah permukaan tanah setempat. Pelepasan air tanah berupa mataair ada yang mencapai 400 lt/dt dan penurapan melalui sumur bor dengan debit mencapai 2 It/dt hingga 5 lt/dt. Neraca keseimbangan air di daerah penelitian mengaiami defisit air tanah sebanyak 4,4 juta m3 pada tahun 2003. Kecenderungan air tanah berkurang adalah akibat perubahan kondisi tutupan lahan disertai dengan ekstraksi air tanah yang terus bertambah.Hasil analisis ruang dan wilayah daerah penelitian memperlihatkan adanya interaksi antara daerah tangkapan air dan daerah perlepasan serta lokasi cadangan air tanah. Kegiatan ekonomi yang menggunakan air tanah tidak terpisahkan dari kawasan hutan Iindung Gunung Salak sebagai daerah tangkapan airnya. Pemanfaatan air tanah di kawasan hulu akan dapat menghilangkan peluang kegunaannya bagi kawasan hilirnya. Sepatutnya kawasan hulu menjadi kawasan tumbuh lambat yang diprogramkan untuk fungsi konservasi atau lindung karena menjadi satu kesatuan ekosistem dari hulu sampai ke hilir.Air adalah satu fase bentuk sumberdaya alam yang secara alamiah mengalami siklus perubahan bentuk. Sumberdaya alam ini pada fase bentuk air menjadi kebutuhan dasar semua mahluk hidup di bumi. Sebagai kebutuhan dasar, air tidak dapat menjadi komoditi (barang ekonomi) yang dapat diperdagangkan dan diberi label harga. Prinsip yang memandang air sebagai komoditi (barang ekonomis) akan menghilangkan fungsi ekologis, sosial, religius dan budaya.Pengguna air tanah dapat dikenakan beaya masa siklus air. Beaya masa siklus air adalah beaya kerugian yang dialami oleh generasi masa depan akibat pemanfaatan sumberdaya alam masa kini. Nilai masa siklus air dihitung melalui pendekatan valuasi manfaat Iokal sumberdaya hayati dan manfaat lokal sumber air.Beaya masa siklus air di Iokasi penelitian per hektar hutan sebesar Rp. 2.924.890,- setiap tahunnya. Persepsi dan pemahaman tentang beaya masa siklus air belum sepenuhnya disadari oleh perusahaan air minum dalam kemasan. Akibatnya adalah masih banyak perusahaan belum bersedia ikut berperanserta daiam kegiatan konservasi daerah tangkapan air.Berdasarkan hasil analisis dan pembahasan dalam tesis ini, dapat disimpulkan sebagai berikut:1. Tersedianya air tanah berkurang karena terganggunya keseimbangan neraca air akibat penurapan melalui sumur bor lebih besar dan suplesi air tanah.2. Beaya bagi tersedianya air adalah beaya kerugian yang akan ditanggung oleh generasi masa depan.3. Pengetahuan dan pemahaman tentang beaya masa siklus air belum sepenuhnya disadari oleh pengusaha air tanah.Saran dari penulis dalam tesis ini adalah; (1) Perlu dilakukan segera pengendalian ekstraksi air tanah melalui penataan ulang SIPA yang telah dikeluarkan, penutupan sumur bor yang tidak memiliki ijin atau melebihi debit yang diijinkan, penghentian ijin baru dan peningkatan pengawasan pemanfaatan air tanah; (2) Memperbesar suplesi air tanah meIaIui pengendalian pembangunan permukiman di daerah tangkapan air, menghutankan kembali Iahan yang bersudut Iereng lebih dari 30% dan pembangunan ?embung" atau ?waduk kecil" sebagai sumber air bersih untuk memenuhi kebutuhan penduduk; (3) Perlu disosialisasikan secara luas kepada masyarakat tentang beaya masa siklus air. (4) Perlu disosialisasikan paradigma air sebagai hak asasi manusia. Setiap orang berhak memperoleh air bersih khususnya air minum dan kewajiban negara untuk memenuhinya.

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The main source of water in the Sukabumi is the reservoirs found in the Gede Pangrango and Halimun Salak highlands. These areas are the up river of the Cimandiri River which flows south through Sukabumi all the way to the Southern coastal city of Pelabuhan Ratu, the capital city of Sukabumi District. These water reservoirs, ground reservoirs and spring water, have been used in the upper regions for many years. The use of the ground water for domestic needs and industrial needs is increasing rapidly. Revenue through the use of these water resources by industry has not been charged with conservation cost of these resources.

As the use of water has increased exponentiaily, supply tends to decrease due to the destruction of the upper catchments areas that are now being developed or destroyed. Internal control in the areas with their hydrology functions are being assessed in order to over come the problem before it gets out of hand.

The aim of this study is to estimate the current ground water condition, its value through analysis of local economic value of water catchments area and the current price of water. To understand perceptions and ability of water consumers to pay reservation cost of the water catchments area.

Results would enrich information in the effort to preserve natural water resources and natural environment as a unified natural resource. Information obtained may also be useful in future planning and development of these areas.

This research has been carried out in the Counties of Cicurug, Cidahu, Parakansalak, and Parugkuda, from January to June of 2003. The focus area is located at the foot of the Salak Mountain in the area of Sukabumi district. The form of research that has been used is ex post facto through qualitative and quantitative approach. The primary and secondary data were was collected through surveys and studies of literatures.

The result of studies has shown that the area in the vicinity of Gunung Api Tua is located in the main water absorption area, which is also the area of ground water release. Ground water potential is found to be between 100-300 meters below ground surface. The release of ground water from springs is at a rate of 400 It/sec and extracted using drill-wells at a rate of 2 lt/sec up to 5 lt/sec. The balance water measured in this area shows a deficit of as much as 4,4m3 in the year 2003. Ground water deficit tends to continue declining as result of man-made change in the soil covering due to building constructions agriculture as such that disturbs the seepage of rain water into the ground, hence the replenishment, while water extraction continue to increase.

Result of space and area analysis of research area shows that an interaction exists between the water catchments areas, water releasing areas, and the areas where the ground water is naturally stored. Therefore, economic sectors benefit from the ground water supply should not be freed from their responsibility in forest conservation and protection of Salak Mountain as water catchments areas. Using ground water in water areas will eventually reduce or even eliminate the benefit for water draining areas. It should be understood that water catchments area must be considered as areas of conservation and protection, because of its ecosystem unity from water-catchments area to water-released areas.

Liquid water is one phase in the cycle of this resource, which is naturally changing in form and state. In its liquid phase, water is a basic necessity for all living organism on this earth. As a basic necessity, water cannot become a commodity to be commercialised and given a price label. Considering water as eoonomic commodity will lose its ecological, social, religious and cultural functions.

Water users could be charged with water cycling costs. Water cycle cost is atpenses to cover losses which wlll be experienced by future generations due to present resource ulilisation. The value of water cycle period is calculated by local usage valuation approach of the biological resources and the local use of water resource.

The annual per hectare expenses of water cycle at the site of investigation is calculated at Rp. 2.924.890,-. Perception and understanding in the expenses for water cycling period have not been fully realized by water packing companies. Consequently there are still a great number of companies that are not willing to participate in the effort of water catchments area.

Water is only one phase of a natural cycle that is always moving. This natural resource when it is in the water phase is essential to the life of all animals on earth. As a basic need water can not beoome a commodity that can be sold with a label and a price, it is priceless. The principle that view water as a commodity will absolutely destroy its ecological, social, and cultural function and even will threaten our religious foundations. All humans have rights to have clean water, and it is not a commodity.

Water cycle cost in research area per hectare forest is Rp. 2.924.890,- every year. Perceptions and understanding about water cycle cost is not completely realized by water-packing company. As result, there still many companies that weren?t willing to participate in conservation program of water-catchments area.

Conclusions of research result and discussion in this thesis are: 1) There is deficit of ground water in research location as result of disturbances the equilibrium of water scale. The disturbances is caused by the used of ground water through artificial pump-well that larger than infiltrate of water volume. There is company that used ground water in water-absorbent areas and water-released areas In Salak Mountain areas. Ground water that is extracted from those areas are products of conservation forest water-catchments area; 2) Water cycles should be included in production total cost by water ground user. The value of water cycles cost can be calculated through valuation approach of local benefit of natural resources and local benelit of water resources; 3) Even though the water cycles cost cannot implemented yet for ground water benefit management, the valuation approach can be easily used by people in community so that the used of the valualjon need to be socialized.

Suggestions from writer in this thesis are: a) we need to do more detail assessment about ground water storage, b) it is necessary to socialized water paradigm as human rights. Every human have rights to have clean water especially drinking water and it is obligation of the country to fulfil it; c) Some studies should be done so that water- cycle cost policy can be implemented. The study that can be done is study of scarcity rent and extraction cost; d) To minimize bias from calculating economic benefit from natural resources, we need to choose respondents accurately from areas that closed or those who lived near the forest."

"Sumber daya tanah dan air yang sangat penting untuk keberlangsungan manusia saat ini tengah menghadapi tantangan oleh erosi dan degradasi lahan yang disebabkan oleh perubahan iklim, khususnya pada skala DTA dan DAS. Untuk menghadapi masalah ini diperlukan analisis mendalam tentang tingkat kerentanan erosi pada sub-DAS dengan melihat karakteristik morfologi, tutupan lahan, dan erosivitas curah hujan untuk menentukan sub-DAS prioritas, agar dapat melakukan upaya konservasi yang tepat berdasarkan karakteristik sub-DAS tersebut. Penelitian ini bertujuan untuk mengetahui karakteristik morfometri sub-DAS dan mengevaluasi tingkat kerentanan erosi di Daerah Tangkapan Air (DTA) Danau Kerinci. Menggunakan Analisis Morfometri Kuantitatif, penelitian ini mengintegrasikan karakteristik morfometri, tutupan lahan, dan erosivitas hujan untuk menilai tingkat kerentanan erosi 18 subDAS untuk menentukan prioritas konservasi. Empat sub-DAS ditemukan memiliki tingkat kerentanan erosi yang sangat tinggi, yaitu sub-DAS Siulak Deras, sub-DAS Aek Siulak, sub-DAS Sangkir, dan sub-DAS Aek Pulau Tengah. Berdasarkan hasil ini, penelitian ini menyusun rekomendasi strategi konservasi yang disesuaikan dengan karakteristik tiap sub-DAS untuk mengatasi erosi dan mendukung pengelolaan sumber daya alam yang berkelanjutan.

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Soil and water resources that crucial for human sustainability, are currently facing challenges from erosion and land degradation caused by climate change, especially in the Catchment and Watershed scale. To address this issue, an in-depth analysis of erosion vulnerability is required for sub-watersheds by examining morphometric characteristics, land cover, and rainfall erosivity to determine priority sub-watersheds for appropriate conservation efforts based on their characteristics. This study aims to identify the morphometric characteristics of sub-watersheds and assess the level of erosion vulnerability in the Lake Kerinci Catchment Area. Utilizing Quantitative Morphometric Analysis, this research integrates morphometric characteristics, land cover, and rainfall erosivity to evaluate the erosion vulnerability of 18 sub-watersheds and establish conservation priorities. Four sub-watersheds were found to have a very high level of erosion vulnerability, namely Siulak Deras, Aek Siulak, Sangkir, and Aek Pulau Tengah sub-watersheds. Based on these findings, the study formulates tailored conservation strategies for each sub-watershed to address erosion and support sustainable natural resource management."

"Kota Metro merupakan salah satu kota dengan tingkat pelayanan air perpipaan yang rendah (5,05%), sehingga sebagian besar masyrakatnya menggunakan air tanah dengan sistem self-supply. Akan tetapi, keamanan sistem sumber self supply saat ini menjadi isu di masyarakat. Metode continuous monitoring dari April – Oktober 2021 melalui telepon setiap bulan dilakukan untuk membantu penilaian tingkat layanan air minum. Tujuan dari penelitian ini adalah menganalisis variabilitas sumber air bersih dan air minum, menganalisis variabilitas tingkat pelayanan air minum yang dipersepsikan aman, menganalisis variabilitas biaya operasional dan pengelolaan layanan sumber air minum di rumah tangga, dan menganalisis intervensi pengolahan air minum di rumah tangga untuk meningkatkan kualitas air minum. Analisis dilakukan dengan analisis statistik deskriptif dan software SPSS 24 untuk uji Regresi Logistik Biner. Hasil menunjukkan 97% sumber air masyarakat Kota Metro adalah sumber air self-supply, yang didominasi oleh sumur gali tak terlindungi milik pribadi (45% sumber air bersih dan 30% sumber air minum). Berdasarkan persepsi rumah tangga (keamanan, rasa, penampilan, bau, keandalan, dan ketersediaan air minum), air isi ulang dan air kemasan memiliki tingkat keamanan paling konsisten selama 6 bulan survei (100%). Sistem non-self-supply diketahui lebih aman dari sistem self-supply dengan persentase 98% dan 95%. Variabel kejadian banjir diketahui signifikan terhadap penilaian tingkat pelayanan sumber air minum yang dipersepsikan aman dengan peluang 0,059 kali dalam mempengaruhinya. Rata-rata biaya yang dibutuhkan untuk maintenance mesin pompa adalah Rp 683.750,00 dan untuk maintenance lainnya (pipa, kran air, dll) sekitar Rp 85.833,00 per rumah tangga. Sedangkan biaya yang dihabiskan oleh 1 rumah tangga dalam 1 minggu untuk air isi ulang adalah sekitar Rp 19.751,00, sedangkan untuk air kemasan sekitar Rp 40.986,00. Variabel yang mempengaruhi biaya air minum adalah pengolahan air dengan perebusan yang berpeluang 0,029 kali. Berdasarkan persepsi rumah tangga, masalah sumber air minum yang paling banyak terjadi pada sumber air baku adalah penampilan (29,4%) dan bau (28,3%), serta kadar E.coli (72%) pada air minum. Dengan demikian, dibutuhkan intervensi strategi pengolahan air minum untuk mengatasi permasalahan yang ada dan meningkatkan kualitas air minum. Adapun intervensi pengolahan air minum yang direkomendasikan untuk menyelesaikan masalah tersebut adalah Slow Sand Filter (SSF) dengan media tambahan berupa Granular Activated Carbon (GAC) serta unit disinfeksi sinar UV.

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Metro City is one of the cities with a low level of piped water service (5,05%), so that most of the people use groundwater with a self-supply system. However, the safety of the self-supply source system is currently an issue in society. A continuous monitoring method from April – October 2021 by telephone every month was carried out to help assess the level of drinking water services. The purpose of this study are to analyze the variability of clean water and drinking water sources, to analyze the variability of the level of drinking water services that are perceived as safe, to analyze the variability of operational and maintenances costs of drinking water facility in households, and to analyze the intervention of drinking water treatment in households to improve the quality of drinking water. The analysis was carried out using descriptive statistical analysis and SPSS 24 software for the Binary Logistics Regression test. The results show that 97% of Metro City's water sources are self-supply water sources, which are dominated by private unprotected dug wells (45% for clean water sources and 30% for drinking water sources). Based on household perceptions (safety, taste, appearance, smell, reliability, and availability of drinking water), refill and bottled water had the most consistent level of safety during the 6 months of the survey (100%). Non-self-supply systems are known to be safer than self-supply systems with a percentage of 98% and 95%, respectively. The flood incident variable is known to be significant to the assessment of the service level of drinking water sources that are perceived as safe with a 0,059 times chance of influencing it. The average cost required for pump engine maintenance is Rp 683.750,00 and for other maintenance (pipes, water faucets, etc.) it is around Rp 85.833,00 per household. Meanwhile, the cost spent by 1 household in 1 week for refill water is around Rp 19.751,00, while for bottled water it is around Rp 40.986,00. The variable that affects the cost of drinking water is water treatment by boiling which has a chance of 0.029 times. Based on household perceptions, the most common drinking water source problems that occur in raw water sources are appearance (29,4%) and smell (28,3%) and E.coli (72%) in drinking water. Thus, intervention strategies for drinking water treatment are needed to overcome existing problems and improve drinking water quality. The recommended drinking water treatment intervention to solve this problem is the Slow Sand Filter (SSF) with additional media in the form of Granular Activated Carbon (GAC) and UV disinfection unit."

"In comparison with lowland area, the upland area has been less prioritized in the development scheme and relatively left behind in the introduction of productive technology. Additionally, physical condition of the dry-upland becomes major problem for people to gain a better welfare. There is now steadily an increasing government concern and awareness of the importance of this area. Despite the development equity jargon, the recognition of the significance of upland lies to the fact that upland position is not only substantial but also decisive within watershed system. Land and water conservation work on these spheres of upland attractiveness. The study is directed to the inventory of this land and water conservation activities as a mean of development interventions to upland. Furthermore, appraising popular perception and participation in the activities is also the main part of the objective of this study. To facilitate this objective achievement, the study is purposely conducted in one of upland regency in Wonogiri. Two villages have been selected and 150 farmers has been randomly selected and interviewed."

"Pengelolaan konservasi sumberdaya air di Indonesia pada saat ini menghadapi tantangan yang semakin berat dan kompleks. Dalam rangaka menjaga ketersediaan air diperlukan usaha-usaha pengelolaan konservasi sumberdaya air yang berkesinambungan dan berkelanjutan ( lestari).... "

"Gedung i-CELL FTUI merupakan salah satu fasilitas di lingkungan kampus Universitas Indonesia yang menyandang predikat bangunan hijau dan telah tersertifikasi EDGE Advanced melalui strategi konservasi air seperti pengumpulan air hujan dan penggunaan fitur hemat air. Akan tetapi, masih ada potensi sumber air alternatif lain yang belum dimanfaatkan, seperti daur ulang kondensat AC dan grey water. Penelitian ini bertujuan untuk (1) menganalisis kesesuaian potensi strategi konservasi air terhadap kriteria konservasi air untuk bangunan hijau; (2) menganalisis strategi konservasi air eksisting dan potensi kuantitas grey water sebagai sumber air alternatif; dan (3) menganalisis potensi air kondensat AC sebagai sumber air alternatif. Pada penelitian ini, kesesuaian kriteria konservasi air ditinjau berdasarkan perangkat penilaian Greenship New Building Versi 1.2 dan Peraturan Menteri PUPR Nomor 21 Tahun 2021. Pengukuran dan pengujian untuk sampel kondensat dan air hujan dilakukan dengan parameter kualitas yang merujuk pada Peraturan Menteri Kesehatan Nomor 2 Tahun 2023. Selain itu juga akan dilakukan analisis data sekunder untuk perhitungan timbulan grey water. Hasil penelitian menunjukkan bahwa pemanfaatan air hujan untuk kebutuhan flushing memiliki potensi pengumpulan hingga 91.870 L/bulan dan sebagian besar parameter memenuhi baku mutu, kecuali pH dan besi. Selain itu, seluruh fitur air memiliki keluaran air yang lebih rendah dari standar Greenship dengan potensi timbulan grey water sebesar 90.144 L/bulan. Pada kondensat AC, kombinasi kedua sistem AC sentral dan split dapat menghasilkan kondensat hingga 2.805,2 L/bulan dengan kualitas yang telah memenuhi baku mutu. Analisis kesesuaian konservasi air terhadap kriteria Greenship memenuhi lima dari enam parameter dan memperoleh 18 poin. Sedangkan pada kriteria Permen PUPR No. 21 Tahun 2021, memenuhi seluruh parameter dan memperoleh 12 poin. Secara keseluruhan, kombinasi pemanfaatan kondensat AC dan grey water dapat mengurangi hingga 59,75% pemakaian sumber air primer yang saat ini telah dibantu dengan pemanfaatan air hujan.

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The i-CELL FTUI building is one of the facilities on Universitas Indonesia that holds the title of green building and has been certified EDGE Advanced through water conservation strategies such as rainwater collection and the use of water-saving fixtures. However, there is still potential for other untapped alternative water sources, such as AC condensate recycling and grey water. This study aims to (1) analyze the conformity of potential water conservation strategies to the water conservation criteria for green buildings; (2) analyze the existing water conservation strategies and potential quantity of grey water as an alternative water source; and (3) analyze the potential of AC condensate water as an alternative water source. In this study, a review on the conformity of water conservation criteria is conducted based on the Greenship New Building Version 1.2 assessment tool and Peraturan Menteri PUPR Nomor 21 Tahun 2021. Laboratory measurements and tests were carried out for condensate and rainwater samples with quality parameters referring to the Peraturan Menteri Kesehatan Nomor 2 Tahun 2023. In addition, secondary data analysis will also be carried out for the calculation of grey water generation. The results show that rainwater utilization for flushing needs has a collection potential of up to 91,870 L/month and most parameters meet quality standards, except pH and iron. In addition, all water features have a lower water output than the Greenship standard with a potential grey water generation of 90,144 L/month. For AC condensate, the combination of both central and split AC systems can produce up to 2,805.2 L/month of condensate with quality that complies with quality standards. Analysis of the conformity of water conservation to Greenship criteria fulfils five of the six parameters and achieves 18 points. Meanwhile, the criteria of Permen PUPR No. 21 of 2021 fulfil all parameters and achieve 12 points. Overall, the combined use of AC condensate and grey water can reduce up to 59.75% of the use of primary water sources, which is currently aided by the use of rainwater."