Purpose: This study aims to estimate and evaluate per capita expenditure at the subdistrict level in Garut Regency by employing unit-level Small Area Estimation (SAE) techniques, specifically utilizing the Empirical Best Linear Unbiased Predictor (EBLUP) and the Empirical Best Predictor (EBP) methods.
Methods: The data used in this study are socio-economic data, specifically per capita household expenditure in Garut Regency. Socio-economic data generally skew positively rather than the normal distribution, so a method that can approximate or come close to the normal distribution is needed, for example, log-normal transformation. To improve the performance of EBLUP, which may lead to inefficient estimators because of violation of the assumption of normality, this study proposes the Empirical Best Predictor (EBP) method. It handles positively skewed data by applying log-normal transformation to sample data so that it more closely conforms to the desired distribution.
Result: The EBP results are more stable than EBLUP since EBLUP is highly sensitive to outliers, and in cases where the normality assumption is violated, it produces a significant mean square error and inefficient estimators. Evaluating the estimates with both EBLUP and EBP shows Relative Root Mean Squared Error (RRMSE) values above 25%, especially in the subdistricts of Pamulihan, Sukaresmi, and Kersamanah. This is probably due to the household samples being taken in these three subdistricts being comparatively small compared to the other.
Novelty: In this research, we use EBP to improve the performance of EBLUP, which produces inefficient estimators when the normality assumption is violated.

The role of the younger generation in improving quality in the agricultural sector has a very crucial role. However, nowadays soil fertility in Indonesia is decreasing day by day as agricultural land use becomes more intensive. So that young people's insight regarding environmentally friendly cultivation techniques through organic farming needs to be added and strengthened to create progress in the fields of agriculture and food security. The aim of this service activity is an effort to increase the younger generation's understanding of organic farming through counseling and creating demonstration plots for organic vegetable cultivation using vegetable pesticides and liquid organic fertilizer (POC) to increase agricultural products and stabilize the economy of the surrounding community. The activity method is carried out through counseling, socialization and direct practice through making demonstration plots. Counseling about organic farming and its impact on the environment. The demonstration plot focused on the correct working methods and techniques in organic farming through the application of liquid organic fertilizer (POC) and vegetable pesticides. Following this community service activity program, it shows that the knowledge and skills of the younger generation of farmers have increased regarding organic vegetable cultivation and the impact of organic farming on the environment.
Keyword: organic fertilizer, agriculture, demonstration plots, environment

Introduction: Water quality parameters are indicated by the presence of E. coli bacteria. These bacteria come from human feces, warm-blooded animals, and non-fecal coliforms. Decree of the Health Minister of the Republic of Indonesia Number 907/MENKES/VII/2002 concerning requirements and supervision of drinking water quality states that good drinking water has a zero total coliform and fecal coliform. Methods: This research uses a descriptive approach with a cross-sectional design. It aims to determine the quality of water sources in Sulkatan village. Ten (10) water sources were used as the samples using total sampling method. The collected samples were then taken to the laboratory to be tested with a series of MPN tests Results and Discussion: The results show that the amount of Escherichia coli bacteria in water samples in Sulkatan Village is 0MPN/100 ml. It is owing to the location of the water source that is far from industrial activities, household waste and residential areas. Conclusion: The quality of the tested well-water samples is good and within normal limits in accordance with the Decree of the Health Minister of the Republic of Indonesia Number 907/MENKES/VII/2002