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The Evaluation of Water Loss in The Western North Tarum Irrigation Channel Tandiono, Felix; Yudianto, Doddi; Li, Ren; Ginting, Bobby Minola; Wicaksono, Albert; Fitriana, Finna; Fiona, Megan
JURNAL TEKNIK HIDRAULIK Vol 15, No 1 (2024): Jurnal Teknik Hidraulik
Publisher : Direktorat Bina Teknik Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32679/jth.v15i1.790

Abstract

The Western North Tarum Irrigation channel plays a crucial role in supplying water to irrigated agricultural areas. However, it encounters challenges in ensuring adequate water delivery to all channel segments. This research assesses water loss during the distribution process in the Western North Tarum Irrigation channel, focusing on the evaluation of channel capacity and the impact of suboptimal water management on water loss. The study employs the HEC-RAS model, a hydraulic system analysis tool, to evaluate the channel’s capacity and simulates its behavior under various discharge conditions. The evaluation reveals that two channel segments, B.TUB 13 and B.TUB 25, have exceeded their capacity limits, resulting in overflow. Sedimentation downstream, particularly in these segments, exacerbates the issue by altering the channel slope and impeding water flow. This research identifies poor water distribution management as a significant factor contributing to water loss in the irrigation channel. Inadequate scheduling and the absence of proper water measurement tools result in instances of overwatering or underwatering in some areas. The lack of monitoring and control in the irrigation system hampers the detection of uncontrolled flow in the channels, leading to substantial water loss and inefficient water use. This research underscores the importance of evaluating and maintaining irrigation channel capacity to prevent overflow and water loss. Furthermore, it emphasizes the significance of effective water management to achieve more efficient water distribution and irrigation. Addressing these challenges is crucial for ensuring the long-term sustainability of irrigated agriculture in the Western North Tarum Irrigation area.Keywords: HEC-RAS, Irrigation Channel, Water Distribution, Water Loss, Western North Tarum
STUDI PENGELOLAAN AIR HUJAN DALAM RANGKA PENGEMBANGAN TAMAN KONSERVASI DI KOTA SAWAHLUNTO, SUMATERA BARAT Kent, Steven; Yudianto, Doddi; Fitriana, Finna
JURNAL SUMBER DAYA AIR Vol 18, No 2 (2022)
Publisher : Direktorat Bina Teknik Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32679/jsda.v18i2.820

Abstract

Sawahlunto Conservation Park is an area developed for plant protection and tourism activities. The Sawahlunto city was initially built to support coal mining activities, so the conservation park has several basins that can be used as flood parking ponds. These basins can be used to meet the needs of watering plants. The study is used to examine the water availability and flood analysis at the area to be built.  The conservation park is divided into three areas based on the four reservoirs location: the Kandih Park area, the northern and the southern part of the parking area. In this study, hydrologic and hydraulic analyses will be conducted. In the hydrological analysis, simulations of reservoir capacity are carried out to describe the amount of water that can be used every month. In the hydraulic analysis, SWMM program is used to model rainwater as surface runoff, estimate the planned channel dimensions, and reservoir flood volume. The reservoir simulation results show that the water needs for watering plants can be fully met. However, the available storage ponds have a much smaller volume than the rainfall volume, so the pond will run off throughout the year. The SWMM modeling results show that the channel dimensions from 0.2 m x 0.2 m to 0.5 m x 0.5 m, can drain flood discharge with a two-year return period, with a freeboard five-year return period. This study can be used as a guideline for developing conservation areas in reusing the potential of ex-mining land. Keywords: Conservation Park of Sawahlunto, Drainage Design, Rainfall Management, Reservoir Simulation, SWMM
PREDIKSI DAMPAK PERUBAHAN TATAGUNA LAHAN TERHADAP DEBIT LIMPASAN, STUDI KASUS: GEREJA RANCASARI Wijaya, Obaja Triputera; Yudianto, Doddi; Fitriana, Finna; Sanjaya, Stephen
JURNAL SUMBER DAYA AIR Vol 20, No 2 (2024)
Publisher : Direktorat Bina Teknik Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32679/jsda.v20i2.900

Abstract

Flooding is one of the most frequent natural disasters in Indonesia. Based on data, as of 2024, there have been 137 cases of flooding incidents. One of the causes of flooding, particularly in urban areas, is due to land use change. This study examines the impact of land use changes on runoff discharge in a Church area in the Bandung City. Additionally, this study investigates the effect of the development of this area on flood water levels in the Riung channel, which serves as an outlet channel. In this study, modeling is conducted using the SWMM model. The study utilizes data from the BMKG Bandung and GPM satellite rainfall data from 2001 to 2022 for rainfall analysis. The results indicate that in the study area, the duration of extreme rainfall producing maximum discharge is rainfall lasting for 7 hours. As a result of the church development, runoff discharge increases by 26.3 – 34.4% across various return periods. For time to peak, there is no significant change in conditions before and after the area is developed. This is due to area is relatively small, resulting in a relatively shorter concentration time. Based on the hydraulic analysis, the Riung channel is still able to accommodate additional runoff generated due to development, leaving a freeboard height of 4.5 cm for a 10-year return period. However, based on observations, special attention is needed regarding the issue of sedimentation and trash, which often causes backflow in several segments of the trenches.Keywords:runoff, land use change, urban drainage, SWMM, Bandung
Studi Pencemaran Sungai Cikakembang akibat Limbah Industri Tekstil Menggunakan QUAL2Kw Muhammad Raul Zahran Wiryawardhana; Finna Fitriana; Doddi Yudianto
Jurnal Ilmu Lingkungan Vol 24, No 1 (2026): Januari 2026
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jil.24.1.181-190

Abstract

Sungai Cikakembang, sebagai anak Sungai Citarum di bagian hulu, mengalami pencemaran berat akibat limbah industri tekstil dan domestik. Penelitian ini bertujuan untuk mengevaluasi dampak pencemaran terhadap kualitas air serta merumuskan alternatif strategi pengendalian menggunakan pemodelan QUAL2Kw. Studi ini mengintegrasikan parameter COD, yang belum dievaluasi pada studi terdahulu, karena tingginya konsentrasi bahan organik dari limbah tekstil berpotensi menyebabkan penurunan oksigen terlarut secara signifikan. Sampel air diambil dari 12 titik sepanjang sungai untuk menganalisis DO, BOD, COD, dan NH3-N. Parameter tersebut kemudian dimodelkan menggunakan QUAL2Kw, yaitu perangkat lunak berbasis spreadsheet yang memudahkan proses kalibrasi dan validasi model dengan data lapangan. Hasil analisis menunjukkan bahwa kualitas air berada dalam kondisi buruk, dimana parameter-parameter tersebut tidak memenuhi Standar Baku Mutu Air Sungai Kelas II. Simulasi empat skenario pengendalian menunjukkan bahwa peningkatan kualitas air terjadi hanya pada segmen hulu, sedangkan segmen hilir masih memerlukan strategi pengelolaan tambahan yang lebih komprehensif. Penelitian ini menyoroti pentingnya peningkatan teknologi pengolahan limbah, pengawasan ketat terhadap industri, dan monitoring rutin untuk memastikan keberlanjutan kualitas air Sungai Cikakembang.
Pemodelan Kualitas Air Sungai Cikakembang akibat Pembuangan Limbah Organik Menggunakan HEC-RAS Yudha Primus Kristianto; Doddi Yudianto; Finna Fitriana
JURNAL TEKNIK HIDRAULIK Vol 16, No 2 (2025): Jurnal Teknik Hidraulik
Publisher : Direktorat Bina Teknik Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32679/jth.v16i2.841

Abstract

The Cikakembang River, a tributary of the Citarum River in Majalaya District, has been polluted due to domestic and textile industrial activities. Although the Citarum Harum program, initiated in 2018, has been considered successful in improving water quality in the Citarum River, pollution in the Cikakembang River remains a serious issue. This study aims to analyze the impact of organic waste disposal on the water quality of the Cikakembang River using HEC-RAS. The modeling results obtained are then used as a basis for formulating pollution control strategies. This study focuses on four water quality parameters: BOD, DO, NH₃-N, and TP. In addition to field measurements of various technical data, this study also includes laboratory testing of twelve (12) water samples taken along the Cikakembang River. The data obtained are used to calibrate a mathematical model with statistical bias and relative error analysis as the objective function. Based on water quality testing results, it was found that the concentrations of BOD, DO, NH₃-N, and TP in the Cikakembang River do not meet Class II water quality standards as stipulated in Government Regulation No. 22 of 2021. Furthermore, HEC-RAS simulation results with various pollution control scenarios indicate that the existing conditions cannot fully address the issue. Therefore, stricter monitoring measures are needed for wastewater quality discharged into the water bodies, including enhancing the capacity of wastewater treatment plants and optimizing river rehabilitation programs to sustainably reduce pollution in the Cikakembang River.