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Strategies for Accelerating Sustainable Drinking Water Pipeline Utilization Eddy Rachmad; Ahyahudin Sodri; Yuki MA. Wardhana
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 14, No 1 (2025): February 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i1.57-70

Uncontrolled and excessive use of groundwater leads to economic, social, and environmental impacts. This study investigated factors influencing the low willingness to utilize piped water. The research was conducted in Duren Sawit Village, East Jakarta. The study focused on the sources of household clean water and the factors affecting the low utilization of piped water. A qualitative research approach was employed through in-depth interviews with key informants selected using purposive sampling, and the problem was analyzed using a fishbone diagram. The study found 81% of households use groundwater, only 9% use piped water, and 10% use both sources. The findings reveal that 25% of the households using piped water still rely entirely on groundwater. The low utilization of piped water was influenced by several factors, including socio-economic conditions, environmental behavior, groundwater quality, performance of PAM Jaya, and groundwater regulations for household usage. Based on the analysis, strategies for accelerating piped water utilization were proposed, including socialization and education on groundwater conservation, quality of groundwater, improvement of PAM Jaya performance, and changes in regulations regarding groundwater use for household. Environmental behavior is identified as the primary factor influencing the high use of groundwater. Several strategies involving stakeholders are necessary to promote the use of piped water among households. Keywords: Environmental behaviour, Ground water, Ground water regulation, Piped water, Socio economic.

Stakeholders Mapping Based on Risk of Public Private Partnership (PPP) NonRegional Water Supply Provision in Indonesia Wardhana, Yuki Mahardhito Adhitya
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol 14 No 2 (2024): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Pusat Penelitian Lingkungan Hidup, IPB (PPLH-IPB) dan Program Studi Pengelolaan Sumberdaya Alam dan Lingkungan, IPB (PS. PSL, SPs. IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.14.2.306

Clean water is a necessity for human life that is obligated to be fulfilled. Quantity and the quality of groundwater are decreasing; thus, water provision through pipelines using the PPP scheme became a flagship option to provide water services, especially in Municipalities. PPP became an option to accelerate clean water provision for non-regional water supply. Water as a necessity has very detailed regulations and complex risks and involves many stakeholders. PPP, risk management, and stakeholders have tight linkages conceptually and through framework. This research aims to map the necessary stakeholders involved in non-regional water supply provision with a risk-based approach to mitigate the risks arising from them. The methodology used in this research is a mixed method using risk identification analysis and stakeholder mapping and identification. The result shows that there are 10 stakeholders in the non-regional PPP water projects, which are split into 3 categories those are key stakeholders, supporting stakeholders, and participating stakeholders. Each stakeholder has the potential to trigger risk in a non-regional PPP water project that sums up to 10 risks. Through this authoritative approach and the relevant support, stakeholders can mitigate the risks that exist in non-regional PPP water projects.

Policy Model for Sustainable Drinking Water Supply System Wardhana, Yuki Mahardhito Adhitya
Journal of Infrastructure Policy and Management (JIPM) Vol. 1 No. 1 (2018): Journal of Infrastructure Policy and Management (JIPM)
Publisher : PT Penjaminan Infrastruktur Indonesia (Persero)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35166/jipm.1.1.17-27

In RPJMN 2015-2019, the government has aimed to reach a 100% drinking water services coverage throughout Indonesia in 2019. The actual proper drinking water coverage until 2015 was still at 67.7%. This research seeks to formulate a policy model for sustainable drinking water management system. The method of analysis used in this research is the process model method. The results obtained in this study are policy models for sustainable SPAM development that will include the main variables of this system: raw water source, water treatment processes and water distribution.

Proyeksi Cadangan Karbon Berbasis Data Empiris dalam Agroforestri untuk Mitigasi Perubahan Iklim Kemal Adam, Muharam; Karuniasa, Mahawan; Mahardhito Adhitya Wardhana, Yuki
Jurnal Ilmu Kehutanan Vol 19 No 2 (2025): September
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jik.v19i2.20118

Deforestation from monoculture farming significantly contributes to greenhouse gas emissions and ecosystem degradation, highlighting the need for sustainable land management. Agroforestry presents a viable solution for enhancing carbon sequestration. However, many project models rely on assumptions or secondary data, leading to limited accuracy. This research aimed to enhance projections of carbon stock changes by utilizing empirical data from a 12.7-ha tea plantation in West Java, Indonesia. This research established baseline carbon stocks through direct field measurements in a monoculture scenario. Agroforestry interventions involved hardwood species, such as Toona sureni, Altingia excelsa, and Manglietia glauca, in conjunction with coffee crops. Carbon stock accumulation was then projected over ten years using allometric equations and annual growth increments derived from field observations. Results indicated that agroforestry increased carbon sequestration by threefold compared to monoculture, reaching 472.77 t CO2eq/ha by 2032. The findings demonstrated that empirical data-driven modeling resulted in more realistic and reliable projections, enhanced the accuracy of carbon stock predictions, and established agroforestry as a sustainable approach for mitigating climate change.

Comparative Analysis of the Implementation of Small-Scale Government Cooperation with Business Entities (KPBU): A Comparative Study between Indonesia and South Korea in the Perspective of Efficiency, Regulation, and Sustainability Kurdi Kurdi; Prita Amalia; Yuki Mahardhito Adhitya Wardhana
Pena Justisia: Media Komunikasi dan Kajian Hukum Vol. 24 No. 1 (2025): Pena Justisia
Publisher : Faculty of Law, Universitas Pekalongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31941/pj.v24i1.5947

Public-Private Partnership (PPP) is a common scheme used in infrastructure development in Indonesia, with the main legal basis in Presidential Regulation Number 38 of 2015 and its derivative regulations, such as Regulation of the Minister of PPN/Head of Bappenas Number 7 of 2023. Although this regulation provides legal certainty, the implementation of Small-Scale PPP still faces obstacles, especially in the clarity of project boundaries, variations in financing methods, and immature evaluation mechanisms. This study aims to analyze the implementation of Small-Scale PPP in Indonesia through a comparative study with South Korea, which has clearer and more flexible regulations and more varied financing options, including the Build-Transfer-Lease (BTL) scheme. Using normative legal methods through a comparative approach, legislation, and conceptual, this study identifies differences in PPP regulations and practices in the two countries to evaluate the effectiveness of the policies implemented. The results of this study are expected to provide recommendations for updating PPP regulations in Indonesia in order to increase legal certainty, regulatory effectiveness, and investment attractiveness in a Small-Scale PPP scheme that is more stable and has more legal certainty

Reconceptualizing green sukuk through Maqashid al-Shariah for advancing sustainable development goals Izzati, Amrina Nur; Tumuyu, Sri Setiawati; Wardhana, Yuki Mahardhito Adhitya
Journal of Islamic Economics Lariba Vol. 11 No. 2 (2025)
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jielariba.vol11.iss2.art22

IntroductionThe global pursuit of sustainable development has intensified the need for innovative financing instruments capable of addressing environmental and social challenges while remaining ethically grounded. In Muslim-majority countries, green sukuk has emerged as a promising Islamic finance instrument designed to fund environmentally friendly projects in line with Shariah principles. Despite its growing relevance, scholarly discussion on how green sukuk operationalizes maqashid al-shariah within the framework of the Sustainable Development Goals remains limited, particularly from an integrated conceptual and stakeholder-based perspective.ObjectivesThis study aims to develop and analyze a green sukuk concept based on maqashid al-shariah in achieving sustainable development. Specifically, it seeks to examine the alignment between green sukuk, maqashid al-shariah, and the Sustainable Development Goals; identify priority dimensions in green sukuk development; and assess key implications for investors, governance, and public policy in the Indonesian context.MethodThe study adopts a qualitative-descriptive approach combined with an Analytic Hierarchy Process. Data were collected from secondary sources, including official green sukuk allocation and impact reports, and primary data obtained through interviews and structured questionnaires involving key stakeholders. Content analysis was used to map green sukuk–financed projects to maqashid al-shariah and Sustainable Development Goals, while the Analytic Hierarchy Process was employed to determine priority dimensions in green sukuk development.ResultsThe findings reveal a strong alignment between green sukuk, maqashid al-shariah, and the Sustainable Development Goals, particularly in environmental protection, social welfare, and economic resilience. Environmental and social dimensions emerge as the highest priorities, surpassing economic and governance considerations. However, the study identifies an imbalance in maqashid realization, with intellectual development receiving limited attention. Investor participation is largely driven by functional value considerations, while governance quality and transparency play a critical enabling role.ImplicationsThe results highlight the need for more holistic maqashid-based frameworks that integrate intellectual development, strengthen governance, and enhance sustainability reporting to improve the effectiveness and credibility of green sukuk.Originality/NoveltyThis study offers an integrated maqashid al-shariah–based conceptualization of green sukuk linked explicitly to the Sustainable Development Goals, combining content analysis with stakeholder prioritization to advance the discourse on Islamic sustainable finance.

Environmental Social Governance (ESG) Framework for Public Private Partnership (PPP) in Indonesia Yuki Mahardhito Adhitya Wardhana
Journal of Civil Engineering Vol. 39 No. 1 (2024)
Publisher : Institut Teknologi Sepuluh Nopember (ITS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20861206.v39i1.7333

Environmental and social risks are risks that can disrupt the sustainability of infrastructure provision through the PPP scheme. PPP is a cooperation scheme involving many stakeholders and each stakeholder can be part of mitigating risks, including environmental risks. Environmental risk mitigation can be carried out through instruments and frameworks owned by each stakeholder. This research aims to map the ESG framework that exists in PPP schemes in Indonesia based on existing instruments for stakeholders to be able to make ESG an effective instrument for mitigating environmental and social risks. The research method used in this research is qualitative because the analysis used in this research is a descriptive and in-depth observation of the PPP ecosystem in Indonesia. The results of this research show that there are eight stakeholders in PPP in Indonesia. Each stakeholder has an instrument and can apply the ESG framework based on the instrument they have. Implementing the ESG framework can mitigate environmental and social risks in business processes carried out by stakeholders in the PPP ecosystem in Indonesia.

Willingness and Ability to Pay for Renewable Energy in Jakarta Whidas Prihantoro; Yuki Mahardhito Adhitya Wardhana; Udi Syahnoedi Hamzah
Jurnal Ilmu Lingkungan Vol 23, No 4 (2025): July 2025
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jil.23.4.937-949

The Indonesian government is firmly committed to achieving Net Zero Emission (NZE) by 2060. This involves transitioning the electricity sector by progressively replacing fossil fuels with renewable energy sources. The goal is to have a renewable energy mix of at least 23% by 2025 and at least 31% by 2050. This commitment applies to all provinces in Indonesia, including DKI Jakarta Province. This study aims to analyze the willingness and ability to pay DKI Jakarta Province residents for potential changes in energy prices resulting from an energy transition that increases the renewable energy mix. By 2023, the renewable energy mix in Indonesia reaches 13.3%. Coal is still the most widely used energy sources ini Indonesia, reaching 39,7%. This research employs quantitative methodology to ascertain the purchasing ability of the community for electrical energy through questionnaire distribution to PT PLN (Persero) customers. The respondents of this research are PT PLN (Persero) customers with household categories at all levels, which are R1, R2 and R3. The result showed that that a vast majority of respondents (97%) recognize coal as the primary energy source for electricity generation, with 96.3% acknowledging its negative environmental and health effects. Awareness of the government's energy transition policy is high at 97.6%, and 93.3% of respondents support the shift to renewable energy. However, the willingness to pay higher electricity tariffs declines across customer categories, with R1 at 54.13%, R2 at 47.83%, and R3 at 33.33%. The research results on respondents' ability to pay show that R1 category respondents represent 5% of the initial bill. The R2 and R3 categories represent a maximum of 10% of the initial bill.

Strategies for Accelerating Sustainable Drinking Water Pipeline Utilization Eddy Rachmad; Ahyahudin Sodri; Yuki MA. Wardhana
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 1 (2025): February 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i1.57-70

Uncontrolled and excessive use of groundwater leads to economic, social, and environmental impacts. This study investigated factors influencing the low willingness to utilize piped water. The research was conducted in Duren Sawit Village, East Jakarta. The study focused on the sources of household clean water and the factors affecting the low utilization of piped water. A qualitative research approach was employed through in-depth interviews with key informants selected using purposive sampling, and the problem was analyzed using a fishbone diagram. The study found 81% of households use groundwater, only 9% use piped water, and 10% use both sources. The findings reveal that 25% of the households using piped water still rely entirely on groundwater. The low utilization of piped water was influenced by several factors, including socio-economic conditions, environmental behavior, groundwater quality, performance of PAM Jaya, and groundwater regulations for household usage. Based on the analysis, strategies for accelerating piped water utilization were proposed, including socialization and education on groundwater conservation, quality of groundwater, improvement of PAM Jaya performance, and changes in regulations regarding groundwater use for household. Environmental behavior is identified as the primary factor influencing the high use of groundwater. Several strategies involving stakeholders are necessary to promote the use of piped water among households. Keywords: Environmental behaviour, Ground water, Ground water regulation, Piped water, Socio economic.

Estimating groundwater availability using the electromagnetic very low frequency (EM-VLF) method Diah Sabatini Sitiningrum; Hayati Sari Hasibuan; Yuki Mahardhito Adhitya Wardhana
Environmental and Materials Vol. 4 No. 1: (June) 2026
Publisher : Institute for Advanced Science, Social, and Sustainable Future

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61511/eam.v4i1.2026.3794

Background: The coastal area of North Jakarta faces serious risks of groundwater table decline, seawater intrusion, and water quality degradation due to continuous groundwater extraction. Previous studies indicate that the aquifer system in North Jakarta consists of heterogeneous coastal alluvial deposits, including sand, silt, clay, and gravel. This condition causes groundwater potential to vary across locations. This study aims to analyze the potential availability of groundwater in Kalibaru Urban Village, Kampung Susun Akuarium Penjaringan, and Rusunawa Marunda. Methods: This study applied the Very Low Frequency Electromagnetic (EM-VLF) interpretation method to identify saturated zones beneath the surface. Field data included groundwater table depth, aquifer thickness, lithology, permeability factors, specific yield, salinity, and well measurements. Findings: Kalibaru Urban Village shows the highest estimated groundwater potential among the three sites, with a potential groundwater-bearing zone at 12–45 m depth and a Darcy-based relative total of 51.29 m³/day. Rusunawa Marunda also shows potential groundwater-bearing zones at approximately 42–59 m. The variation in estimated groundwater-flow potential is associated with differences in interpreted depth, thickness, lithology, specific yield, and EM-VLF-derived salinity indicators. Conclusion: Groundwater bearing conditions remain locally indicated at the three study sites. However, groundwater use should be carefully limited because coastal areas are vulnerable to salinity, contamination, seawater intrusion, and groundwater-table decline. Government agencies and local communities need to strengthen groundwater-level monitoring, direct water-quality testing, pumping control, piped-water services, and rainwater harvesting. Novelty/Originality of this article: This study provides an EM-VLF-based assessment of groundwater potential at three coastal locations in North Jakarta. It also connects subsurface technical findings with the need for site-specific groundwater management strategies.

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