PENDUGAAN POTENSI AIR TANAH METODE GEOLISTRIK SCHLUMBERGER KEBUN DURIAN # PART 1

Summary

In this video, the team embarks on a geoelectric survey to detect groundwater sources in a rural area near Bandung. Using geophysical equipment, they assess the potential for deep water sources, avoiding shallow ones that could affect local residents. The team discusses previous methods like water detectors, but emphasizes the precision of geoelectric measurements. The project aims to ensure sustainable water supply by accurately identifying deep water sources, with ongoing testing at multiple points to determine the most viable source.

Takeaways

• 😀 The video discusses the search for an underground water source in a rural area in Bandung, using geoelectrical surveying methods.
• 😀 The presenter emphasizes that the area is prone to water scarcity, and they are seeking a reliable deep water source.
• 😀 Water detection tools, including a water detector and geoelectric measurement equipment, have been used for this investigation.
• 😀 The geophysical team is working with sophisticated equipment such as resistivity meters, electrical cables, and electrodes to gather data.
• 😀 The initial measurement site is located behind the irrigation control room and is close to the water storage tank.
• 😀 The geoelectrical method involves sending electrical currents through the earth to measure resistivity and determine the water-bearing layers.
• 😀 The measurements are being taken at various depths, with the goal of identifying reliable deep water sources that won't interfere with existing shallow water supplies used by nearby residents.
• 😀 The process is methodical, with results to be charted and analyzed manually for each test location.
• 😀 The video highlights the importance of finding deep water sources, as shallow water sources are not ideal due to their vulnerability and potential for contamination.
• 😀 The presenter expresses hope that the geoelectrical tests will lead to identifying a strong, sustainable water source, ensuring the land's water needs are met without affecting the local community's supply.

Q & A

What is the primary focus of the video?

The primary focus of the video is on detecting groundwater sources using geoelectric measurement techniques in the Cicahem area of Bandung, Indonesia. The aim is to find reliable sources of deep groundwater for irrigation purposes.

What technology is used to detect the groundwater in this project?

The project uses geoelectric measurement tools, specifically a resistivity meter and electrodes for current and potential measurement, to detect deep groundwater sources.

Why is there a need to use geoelectric measurements for detecting water?

Geoelectric measurements are used to ensure that the water source found is deep enough and does not interfere with shallow water sources used by the local population, which are considered more vulnerable to contamination.

What challenges are faced in the area regarding water availability?

The area faces challenges with water availability, particularly with shallow groundwater sources, which are prone to depletion and contamination. The team is focused on identifying deeper, more reliable water sources.

How many locations will be tested for groundwater detection?

The team plans to test two or three locations for groundwater detection to ensure they find the best source. If the first two locations provide good results, further testing will not be necessary.

What is the significance of the chosen test site near the irrigation control room?

The chosen test site is strategically located near the irrigation control room, making it easier to connect to the water storage tank and ensuring that the detected groundwater can be easily used for irrigation purposes.

What depth range is considered ideal for a reliable water source?

A reliable water source is considered to be one that is at least 50 meters deep. Shallow water sources, which are typically under 50 meters, are not preferred as they are more prone to depletion and contamination.

What specific geological layers are identified during the geoelectric measurement?

The measurements identified several geological layers, including hard soil near the surface, followed by layers of sandstone, and deeper layers containing more porous materials like sand and gravel, which are favorable for groundwater storage.

How is the data from the geoelectric measurements processed?

The data from the geoelectric measurements are manually plotted to create a diagram, which is then used to analyze the water quality and the geological structure of the area. This analysis helps in identifying the best water source.

What are the concerns related to shallow water sources in the area?

Shallow water sources are a concern because they are vulnerable to contamination and are not sustainable over time, particularly in areas where water demand is high. The team aims to find deeper water sources to avoid these issues.