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To improve public health, the problem of providing clean water must be a top priority. Since water is essential for all living things, water is also very important. It requires the availability of healthy water, which includes monitoring and regulating water quality to meet human needs and life. The goal is to ensure that everyone has access to healthy drinking and clean water. Target. The aim of this research is to find out whether there are coliforms and fecal coliforms in the drilled well located on Rt 28/Rw 007, Baguala District, Ambon City. Methodology. This research is classified as descriptive research. The 6 water samples used were taken at Rt 28/Rw 007 Baguala District, Ambon City. The total population in this research is six drilled wells. All drilled well water was taken at 1 Rt/Rw and used as the resulting sample. The research results showed that fecal coliform and coli bacteria were found in drilled well water at Rt 28/Rw 007 Waiheru Perumnas Village, Baguala District, Ambon City; three drilled well water was positive for coliform bacteria, and one drilled well water was negative. Five positive borehole water also had negative coliform bacteria. Decision: According to the Republic of Indonesia Minister of Health Regulation number 32 of 2017 concerning environmental health quality standards and water health requirements for sanitation hygiene purposes, swimming pools, aqua solutions and public baths, the number of coliform bacteria is 1 and the number of coliforms is 3.

This research aims to explore the optimization of land clearing techniques in supporting agricultural sustainability in Dahana Tabaloho Village, Gunungsitoli District, North Sumatra. This research involved students of the University of Nias Agrotechnology Study Program who applied land clearing techniques which included weed removal, soil loosening, drainage and bed making. The methods used in this study were direct observation, interviews, and measurement of soil parameters before and after the application of the techniques. The results showed that the combination of traditional and modern techniques in land management can improve tillage efficiency and environmental sustainability. The use of cultivators for soil loosening is proven to speed up the process, but still requires organic fertilizer to maintain the quality of the soil structure. Good drainage is effective in managing excess water and ensuring water availability during the dry season. In addition, making beds with proper direction supports optimal plant growth. The 15% increase in organic matter content and the stability of soil pH to remain neutral are indicators of the success of the applied techniques. Overall, this study provides evidence that proper land management can support sustainable agricultural productivity in the tropics.

This study aims to examine the strategies implemented by the Regional Drinking Water Company (PDAM) in providing adequate clean water and sanitation services in Labuan Bajo Village, Komodo District, West Manggarai Regency. The results indicate that PDAM possesses several strengths, weaknesses, opportunities, and threats in carrying out its functions. The main strengths of PDAM include an extensive distribution network, strong regulatory support, adequate technical capacity, stable availability of raw water, and responsive services. However, its weaknesses include aging infrastructure, limitations in human resource management, financial constraints, the long distance of raw water sources from the distribution center, and frequent service disruptions. The opportunities that PDAM can leverage include regulatory support from the government, increased public awareness of the importance of clean water, the implementation of innovative projects, partnerships with the private sector, and the adoption of modern technology. On the other hand, threats faced by PDAM include the impact of climate change on raw water availability, limited water resources, suboptimal human resource management, and issues with cash flow and long-term funding.By understanding these factors, PDAM can formulate more effective strategies to enhance its performance and provide better clean water and sanitation services. Several recommendations are proposed, including infrastructure revitalization, improved staff training and development, diversification of funding sources, adoption of innovative technologies, and strengthening collaboration with external partners. Implementing these recommendations is expected to support the sustainability of PDAM Labuan Bajo's services in meeting the community's needs for clean water and sanitation in the region.

Clean water is a basic need that is also the right of every citizen, especially related to social and economic rights. This shows that the availability of clean water is one of the main needs that must be met, because its role is very important in supporting various community activities in various fields of life. Village funds are funds sourced from the State Revenue and Expenditure Budget (APBN) intended for villages that are transferred through the district/city Regional Expenditure Budget (APBD) which is used to finance the implementation of government, implementation and development, community development and community empowerment. Oelnaineno, Takari District, Kupang Regency. This research is empirical research, namely with data in the field as the main source of data such as interviews and observations. Based on the results of the research that has been carried out, it is obtained that: (1) The management of village funds by the Oelnaineno village government in meeting the community's needs for clean water has been carried out in accordance with procedures and gradually, this is marked by the creation of mini reservoirs and reservoirs in each hamlet. (2) Factors that affect the Oelnaineno village government in allocating village funds to fulfill the rights of the people of Oelnaineno village to clean water are: (a) Legal factors, namely the absence of village regulations, in the Perkades the rules related to clean water are still broadly defined. (b) Law enforcement factors, the Oelnaineno village government does not provide socialization related to clean water on a regular basis. (c) The factor of facilities or facilities is the very lack of spring water sources in Oelnaineno village, the water reservoirs made by the village government are still few so that people have to queue when taking water, there is no drilled well as a source of clean water that can survive during the dry season. (d) Community factors that are less active in helping the village government at the planning stage to the implementation of clean water handling in Oelnaineno village

The Sutami Hydroelectric Power Plant managed by PLN Nusantara Power UP Brantas is one of the power plants that relies on air resources to generate electricity. However, the optimization of electricity production can still be improved by considering the availability of primary energy and the interests of related stakeholders. This study aims to create a simulation of operating patterns to optimize the daily electricity production of the Sutami Hydroelectric Power Plant using the MS Excel Solver program. The total electrical energy in March based on the results of the simulation calculation was 56,537,445.55 MWh, 3.09% greater than the actual data of 54,792,800 MWh. The results of the simulation calculation of electricity production in June 2024 were 27,564,315.75 MWh, 3.82% greater than the actual data of 26,511,800 MWh. In FDC 2014-2023, the average mainstay discharge is 32 m3/s available throughout the year to be utilized by water turbines to produce a minimum power of 20 MW. Meanwhile, from the estimated historical data obtained by FDC 2024-2033 with an average mainstay discharge of 40.68 m3/s to produce a minimum power of 30 MW.

Indonesia is committed to achieving zero hunger as one of the goals of fulfilling the Sustainable Development Goals (SDGs) where this commitment focuses on addressing the problem of food availability but also ensuring that every individual has access to sufficient, nutritious, and safe food throughout the year for everyone. However, reviewing the current conditions in Indonesia, there is still an imbalance in food availability that will cause food vulnerability. Therefore, a prediction of food vulnerability in the future is needed where discriminant analysis is one of the appropriate statistical methods to analyze qualitative dependent and quantitative independent variables. This study uses secondary data from the official website of the food agency and the central statistics agency. The results of the study show that the characteristics of the data have small variations, asymmetric distribution, and there are outliers in several categories. The assumptions of multivariate normality, the suitability of the dependent variables, and the identity of the variance-covariance matrix have been met. Through discriminant analysis, the variables of the percentage of poverty and the percentage of households with access to clean drinking water are proven to significantly affect the IKP category. The discriminant model produces one significant function that is able to group the IKP category with a model accuracy rate of 86.8% and a classification accuracy of 64.7%.

Red tilapia (Oreochromis niloticus) is a freshwater fish known for its high tolerance to environmental conditions, low water quality, and ability to adapt well to various situations. Data from the Ministry of Marine Affairs and Fisheries shows that tilapia production in Indonesia has increased significantly, from 1,172,633.38 kg in 2020 to 1,300,529.23 kilograms in 2021, with a percentage increase of 10.90%. The community strongly influences the local economy and food security. Tilapia farming is widely chosen because it has a stable selling price and fast growth. Many farmers have chosen Tilapia farming as their primary source of livelihood. This research aimed to study the socio-economic conditions, difficulties, and development opportunities of tilapia farming in the community. The results show that although this business contributes significantly to family income, there are several constraints, such as fluctuating market prices, limited access to technology, and low aquaculture skills. In addition, the success of aquaculture is also affected by environmental conditions and resource availability. Therefore, a development plan that includes training, access to capital, and improved infrastructure is needed to improve yields and the welfare of the tilapia farming community.

The need for clean water increases every year, this is due to an uncontrolled increase in population growth so that the population is directly proportional to water needs. The problem of increasing water availability and demand due to the impact of uncontrolled population growth is also felt in Waya Udara Hamlet, Tehoru District, Central Maluku Regency. The reservoir clean water distribution network system was built to meet the clean water needs of the people of Waya Udara Hamlet at that time, but with the population growth that increased the need for clean water, so residents looked for other ways to meet clean water needs This research uses a type of quantative research with a descriptive method that aims to find facts that actually occur in the field. In this study, the study population was all heads of families in Waya Udara Hamlet, Tehoru District, Central Maluku Regency. The number of households in the village is 90 households. Analysis and Assessment of Community Satisfaction Level with Clean Water Service Distribution Service quality is one of the techniques for measuring the level of satisfaction. The results of the analysis of the level of satisfaction with the clean water service of Waya Udara Hamlet through the results of questionnaires for satisfaction, from the aspects of taste, color, smell, taste and turbidity are very satisfying. From the aspect of needs, water discharge, water tariffs are also very satisfied with the average satisfaction with needs and availability as well as tariffs and water discharge because of the results of the analysis of availability and needs. for the analysis of the availability and need for clean water of Waya Udara Hamlet in 2023 is 47.79 m3 / day for the needs of a population of 354 people and for the projection of the next 10 years in 2033 with a population of 496 people requires water as much as 66.9 m3 / day based on the discharge availability at the source is 4.97 liters / second with 1 hour filling the reservoir bath is 17.89 m3 / hour with the filling time for the reservoir for 100 m3 / day is 5.89 hours / m3 / tub. From the results of the analysis, it can be seen that the availability is greater than the need for projections for the next 10 years and from the results of the analysis on SPSS-22 the level of satisfaction with the use of clean water in the Waya Udara Hamlet Community is satisfactory because the availability and need for water are met.

Vertical Aquaponics System for Optimal Space Management Overview Due to rapid urban development, less land available for agriculture. Vertical aquaponics systems offer innovative solutions to overcome these problems. This research aims to design and develop a vertical aquaponic system that is efficient and effective in utilizing limited urban space. This system combines fish farming and plant cultivation simultaneously in a closed system. The nutrient-rich water from the fish pond is flowed into the plant substrate in a circular process. The vertical design of the system allows for high productivity in very limited areas. . The results of the study aim to contribute to the development of sustainable urban agriculture and increase food availability in urban areas.  Overview Due to rapid urban development, less and less land is available for agricultural activities. Vertical aquaponics systems offer innovative solutions to overcome these problems. This research aims to design and develop a vertical aquaponics system that efficiently and effectively utilizes limited space in the city. This system combines fish farming and plant cultivation simultaneously in a closed system. Nutrient-rich water from fish ponds is flowed into the plant growth substrate. The results of this research are expected to contribute to the development of sustainable urban agriculture and increase food availability in urban areas.

The availability of clean water is essential in daily life and plays an important role in agriculture, industry, and households. Water resource management faces many challenges such as fluctuations that can cause waste and shortages. The purpose of this research is to create a device that can automatically monitor water surface levels. The tool in question is a water level sensor based on Arduino Uno, which consists of a water level sensor and an Arduino Uno microcontroller. The sensor technology on Arduino can effectively monitor water usage directly and is known for its ease of use, flexibility, and sensor compatibility. An efficient water monitoring system provides accurate information about water availability.

The use of liquid organic fertilizer (POC) is an innovative solution to increase crop productivity in drylands that face challenges in soil fertility and water availability. This study aims to evaluate the effect of various types of POC, including moringa, kirinyu, rabbit urine, fermented fruit waste, and local microorganism-based (MOL) POC, on plant growth and yield. The method used was literature review and analysis of literature from various journals, theses, theses, and dissertations, which were analyzed descriptively and quantitatively.  The results showed that all types of POC increased plant productivity with an average increase of 20-40% compared to the control, with rabbit urine recording the highest increase of 40%. The effectiveness of POC comes from the content of nutrients, bioactive compounds, and microorganisms that improve soil structure, increase water retention, and spur nutrient absorption. The discussion underscored the importance of utilizing local resources to reduce environmental pollution and improve agricultural sustainability.  In conclusion, POC proved to be an effective alternative to increase crop yields in drylands while supporting sustainable agriculture. Recommendations for further research include further exploration of local organic materials and application of POC on a field scale.

The development of information technology has encouraged various educational institutions to switch from manual systems to more efficient and integrated digital systems. One important activity in school management is the process of scheduling teachers' lessons, which often takes a long time and has the potential to cause scheduling conflicts when done manually. Common problems that often arise include conflicts between teachers' teaching hours, incompatibility of classroom availability, and difficulties in adjusting schedules to teachers' preferences. Therefore, this study aims to design and develop a web-based teacher scheduling information system by applying the Greedy algorithm method as a solution to optimize automatic schedule compilation. This system was developed using the PHP programming language and MySQL database with a Waterfall development model approach. The implementation results show that the system is capable of producing teaching schedules quickly, accurately, and with minimal time conflicts. Thus, the application of the Greedy algorithm has proven to be effective in improving efficiency, accuracy, and flexibility in managing teacher schedules in a school environment.

Eco-pharmaceuticals are an emerging solution in the pharmaceutical industry, aimed at reducing environmental impacts through sustainable production, distribution, and disposal practices. The growing concern over pharmaceutical waste, especially in low-resource settings, highlights the need for greener alternatives. Pharmaceutical residues, often not fully removed during conventional wastewater treatments, contribute significantly to water pollution and disrupt aquatic ecosystems. Eco-pharmaceuticals address these issues by using biodegradable materials, environmentally friendly production methods, and safer disposal techniques, thereby reducing the persistence of pharmaceutical contaminants in the environment. Life-Cycle Assessment (LCA) is an essential methodology used to evaluate the environmental impact of pharmaceutical products, considering all stages from raw material extraction to end-of-life disposal. The results of LCA show that eco-pharmaceuticals significantly reduce water pollution potential and carbon emissions when compared to conventional drugs. Additionally, they offer a more resource-efficient alternative by minimizing waste generation during production and ensuring safer end-of-life disposal. Despite the clear environmental benefits, challenges remain in transitioning to eco-pharmaceuticals, particularly in low-resource settings where infrastructure for waste management is limited. Cost and availability of eco-pharmaceuticals may also pose barriers to widespread adoption. However, with appropriate policy interventions, public education, and technological innovations, these challenges can be addressed. This study underscores the potential of eco-pharmaceuticals in mitigating environmental degradation while offering a sustainable and cost-effective alternative to traditional pharmaceuticals, particularly in regions most vulnerable to pollution.

Drought is a hydrometeorological disaster that significantly affects water availability and agricultural activities. Pesisir Selatan Regency has diverse topographic conditions that influence the level of vulnerability to drought, thereby requiring a comprehensive spatial analysis. This study aims to map drought risk by integrating slope steepness with other biophysical parameters using Geographic Information Systems (GIS). The data employed include slope maps derived from DEMNAS, rainfall data (CHIRPS 2024), soil types, land use, and river networks. The analysis was conducted through scoring and overlay methods to produce a drought risk map. The results indicate that areas with very steep slopes (>45%) have a high level of vulnerability due to surface runoff dominance and low infiltration capacity, particularly in Bayang Utara District. In contrast, flat to gently sloping areas dominated by rice fields and forest cover are relatively low-risk. Overall, drought risk in the region is classified into three categories: low, medium, and high. The resulting maps can serve as a basis for local governments in developing spatial planning policies, water conservation infrastructure, and disaster mitigation strategies that are more adaptive and sustainable.

Ships as an important means of transportation require the availability of good quality fresh water to meet the daily needs of the crew. Because the quality of fresh water that does not meet the standards can interfere with the activities of the crew. This research aims to build a water treatment system on board controlled by ATMEGA 2560 microcontroller. The system is equipped with turbidity sensor SEN0189, TDS sensor SEN0244, and PH sensor SEN0161 to monitor the freshwater quality. The process of working this tool by treating fresh water which then the parameters are detected by the PH sensor, TDS sensor, and turbidity sensor which then the detection results are displayed on the LCD monitor, and the buzzer and LED turn on when the condition of the fresh water parameters does not meet the standards. The methodology and design of this system will be carried out with experimental research methods where in this method at least one variable is manipulated to study the cause-and-effect relationship. The results of testing water treatment using ATMEGA 2560 show that the system can work optimally in treating fresh water. And the accuracy of the PH sensor, TDS sensor, and turbidity sensor is quite accurate with the difference in error with the comparison measuring instrument less than 5%.

This research focuses on the implementation of flood management policies in South Tangerang City with suboptimal flood management problems. The problems that were found were that the coordination carried out by stakeholders was tentative, there were obstacles in communication on the condition of the social environment, expecially in terms of public awareness of protecting the environment, was still lacking because rubbish was still found in rivers and canals. The aim of this research is to determine the extent of implementation of flood management policies in South Tangerang City. This research uses a qualitative approach with descriptive methods, and data is obtained trought observation, interviews and documentation. This research uses the Van Meter and Van Horn theory with 6 (six) indicator, namely: a) Policy Size and Objectives; b) Resources; c) Characteristics of The Implementing Agent; d) Attitude and Tendencies; e) Inter-Organizational Communication and Implementation Activies; f) Economic, Social and Political Environment. The result of the study show that policy measures and standards are appropriate but there needs to be an increase in disaster outreach and training. Then the quantitiy or number of Task Forces to go into the field is still insufficient. The availability of an organizational structure and regulations responsible for implementing flood management is quite good. Policy implementers understanding of flood management policies in quite good and has received a positive response from policy implementers. Apart from that, the communication that exists between OPDs and village officials is quite good, characterized by delibration. The economic, social and political environmental conditions are quite good, but there needs to be an increase in public awareness of protecting the environment by not throwing rubbish into rivers or waterways. 

The catfish (Pangasius sp.) is a popular freshwater fish among consumers, both in Indonesia and internationally. One of the main challenges in catfish farming is the suboptimal use of feed. The commonly used feed consists of natural and artificial types. Natural feed is divided into two categories: animal-based and plant-based. The animal-based natural feed frequently used by farmers is tubifex worms. However, tubifex worms have a drawback, as their availability in the market is limited. Therefore, a study was conducted to explore the use of Azolla as an alternative feed for catfish. This study used a Completely Randomized Design (CRD) with one treatment and two levels, namely 100% Azolla and 100% tubifex worms. The study was conducted over a period of 14 days. The observed parameters included fish growth (length and weight), survival rate (SR), Feed Conversion Ratio (FCR), and water quality (temperature, pH, and dissolved oxygen). The data from the study were analyzed using a mean value test. The results showed that the use of Azolla as feed had a positive impact on catfish growth, although it was not yet effective in fully replacing 100% tubifex worms. There was an increase in biomass of 13.8 grams and an average length increase of 0.56 cm during the 14-day maintenance period.

Increasing catfish seed production sustainably is important to meet market needs. One effort to increase seed production is through the degree of egg hatching. This study aims to test the effectiveness of the application of the green water system on the success of hatching sangkuriang catfish eggs. The method used in this study was an experiment with two levels of treatment and 3 replications. The results of the study from the spawning of a pair of parents, obtained an average fertilization rate value produced in the GWS pond of 96.6% and the control pond 97.4%. In addition, the hatching rate showed a difference, with an average in the GWS pond of 90.6% while in the control pond 78.3%. The difference in the degree of egg hatching in the GWS pond can be associated with several factors, such as the availability of higher dissolved oxygen. Dissolved oxygen in the GWS pond is higher through the process of photosynthesis. Chlorophyceae is the most abundant phytoplankton found in the GWS hatching pond. Based on the research results, it can be concluded that the implementation of the Green Water System is effective in increasing the hatching of sangkuriang catfish eggs with an HR of 90.6%. This can be an alternative technology that is useful for cultivators to increase seed production.

Healthy latrines are an important sanitation facility that aims to maintain environmental health and improve public health in general. However, in Aster Hamlet ownership of healthy latrines is still low. Of the 345 families in Aster Hamlet, only 73 have healthy toilets, leaving 272 other families who do not. The habit of defecating into the river is a common practice there, considering that most of the houses are located near the river The aim was to identify factors related to the behavior of using healthy toilets in Aster Hamlet. This research used a cross-sectional design. The research population was 345 heads of families. The research sample was taken from 73 heads of families who had healthy latrines using total sampling technique. The analysis carried out included univariate, bivariate and multivariate analysis to gain a comprehensive understanding of the factors that influence healthy latrine use behavior. The results showed that all the variables studied, namely knowledge (p = 0.003), attitudes (p = 0.000), facilities and infrastructure (p = 0.002), and water availability (p = 0.000), had a significant relationship with latrine use behavior. Healthy. In particular, the most related variable is water availability, with the highest Exp(B) value of 2.505. This shows the importance of the water availability factor in influencing the behavior of using healthy latrines in Aster Hamlet, Village      

Rengat, which is mostly located in the Indragiri River, has great potential in developing fish cultivation and rearing businesses which can be done in various ways, of course by utilizing the availability of water so that it is economically valuable. The research method used is a qualitative descriptive analysis type of research using data collection techniques through interviews, observation and documentation. The results of this research indicate that it is necessary to develop the distribution of cultivation products, especially expanding the freshwater fish market segment so that productivity can be optimized and also protect the waters along the Indragiri River in Indragiri Hulu Regency, Riau Province.