Analysis Of Sea Water Intrusion With Electricity Conducting Power In Dug Wells And Drilling Wells In Dumai Timur District, Dumai City

by ADMIN 134 views

Analysis of Sea Water Intrusion with Electricity Conducting Power in Dug Wells and Drilling Wells in Dumai Timur District, Dumai City

Introduction

Understanding the Threat of Sea Water Intrusion

Sea water intrusion is a significant threat to the quality of groundwater in coastal areas. As the demand for clean water increases, the risk of sea water contamination also rises. In Dumai Timur District, Dumai City, the presence of dug wells and drilling wells has made the area more vulnerable to sea water intrusion. This study aims to investigate the level of sea water intrusion in dug wells and drilling wells in the area, using electrical conductivity (EC) as a measure of water quality.

Background of the Study

Dumai Timur District, Dumai City, is a coastal area with a high population density. The area relies heavily on groundwater as a source of drinking water, with many residents relying on dug wells and drilling wells for their daily needs. However, the proximity of the area to the coastline makes it susceptible to sea water intrusion, which can contaminate the groundwater and pose a threat to public health.

Research Objectives

The primary objective of this study is to determine the effect of several factors on sea water intrusion in dug wells and drilling wells in Dumai Timur District, Dumai City. These factors include the distance of drill wells and dug wells from the coastline, the depth of the well, the water content of the well and dug wells (TDS and chloride), as well as the temperature of the drill well water and dug wells.

Methodology

Sampling and Data Collection

Sampling of sea water, bore well water, and dug well water was carried out from the reference point at the coastline towards the sea and settlements. The sampling was done using a systematic random sampling method, with a total of 30 samples collected from each type of well.

Electrical Conductivity (EC) Measurement

The EC of each sample was measured using a conductivity meter. The EC values were then used to determine the level of sea water intrusion in each well.

Data Analysis

The data was analyzed using multiple linear regression, with the formula ŷ = 402,405 + 0.028 X1 - 9.835 X2 for drilling wells and ŷ = 883,459 - 0.249 x1 - 0.152 x2 for dug wells. The correlation coefficient was also calculated to determine the significance of the relationship between the variables.

Results

Effect of Distance and Depth on EC

The results of the analysis showed that the distance and depth of the bore well had no significant effect on EC. However, the same correlation formula for dug wells showed a significant effect of distance and depth on EC, with a correlation coefficient of 0.885 ≤ 1.

Differences in the Effect of Distance and Depth

The finding that the dug well is more vulnerable to sea water intrusion than bore wells may be caused by differences in construction and the depth of the well. Dug wells generally have a more shallow depth than bore wells, making them more easily affected by sea water that enters groundwater.

Discussion

The Importance of Monitoring

The results of this study indicate that the monitoring of dug well water quality in coastal areas is very important. Residents who rely on dug wells as a source of drinking water need to be informed about the potential of sea water intrusion and the dangers it causes to health.

Solutions and Recommendations

This research can be a reference for the development of the prevention and mitigation of sea water intrusion in coastal areas. Some solutions that can be considered include:

  • The construction of a bore well with a deeper depth: Deeper bore wells will be more difficult to reach by sea water intrusion.
  • Use of Water Treatment Technology: This technology can be used to remove harmful salt and minerals from sea water contaminated water.
  • Increasing public awareness: It is important to increase public awareness about the importance of maintaining groundwater quality and the impact of sea water intrusion.

Conclusion

This study shows that sea water intrusion can be a real threat to the quality of ground water in coastal areas. Differences in the effect of distance and depth on EC in dug wells and bore wells indicate the need for different strategies to anticipate sea water intrusion in both types of wells. Monitoring and proper mitigation efforts are very important to ensure the sustainability of groundwater sources and public health in coastal areas.

Recommendations for Future Research

  • Further studies should be conducted to investigate the effect of other factors on sea water intrusion, such as the type of well construction and the presence of nearby industrial activities.
  • The development of more effective water treatment technologies should be explored to remove harmful salt and minerals from sea water contaminated water.
  • Public awareness campaigns should be implemented to educate residents about the importance of maintaining groundwater quality and the impact of sea water intrusion.
    Frequently Asked Questions (FAQs) about Sea Water Intrusion in Dug Wells and Drilling Wells

Q: What is sea water intrusion?

A: Sea water intrusion is the process by which saltwater from the ocean enters freshwater sources, such as dug wells and drilling wells, contaminating the water and posing a threat to public health.

Q: Why is sea water intrusion a problem in coastal areas?

A: Coastal areas are more susceptible to sea water intrusion due to the proximity of the coastline to the freshwater sources. This makes it easier for saltwater to enter the freshwater sources, contaminating the water and posing a threat to public health.

Q: What are the effects of sea water intrusion on human health?

A: Sea water intrusion can have serious effects on human health, including:

  • Increased risk of waterborne diseases
  • Increased risk of kidney damage and other health problems
  • Increased risk of cancer

Q: What are the factors that contribute to sea water intrusion?

A: The following factors contribute to sea water intrusion:

  • Distance of drill wells and dug wells from the coastline
  • Depth of the well
  • Water content of the well and dug wells (TDS and chloride)
  • Temperature of the drill well water and dug wells

Q: How can sea water intrusion be prevented or mitigated?

A: The following measures can be taken to prevent or mitigate sea water intrusion:

  • Construction of bore wells with a deeper depth
  • Use of water treatment technology to remove harmful salt and minerals from sea water contaminated water
  • Increasing public awareness about the importance of maintaining groundwater quality and the impact of sea water intrusion

Q: What are the benefits of monitoring dug well water quality in coastal areas?

A: Monitoring dug well water quality in coastal areas can help to:

  • Identify areas where sea water intrusion is occurring
  • Prevent the spread of sea water intrusion to other areas
  • Protect public health by ensuring that the water is safe to drink

Q: What are the recommendations for future research on sea water intrusion?

A: The following recommendations are made for future research on sea water intrusion:

  • Further studies should be conducted to investigate the effect of other factors on sea water intrusion, such as the type of well construction and the presence of nearby industrial activities.
  • The development of more effective water treatment technologies should be explored to remove harmful salt and minerals from sea water contaminated water.
  • Public awareness campaigns should be implemented to educate residents about the importance of maintaining groundwater quality and the impact of sea water intrusion.

Q: What are the implications of this study for coastal communities?

A: The findings of this study have significant implications for coastal communities, including:

  • The need for increased monitoring of dug well water quality in coastal areas
  • The need for more effective measures to prevent and mitigate sea water intrusion
  • The need for increased public awareness about the importance of maintaining groundwater quality and the impact of sea water intrusion.

Q: What are the limitations of this study?

A: The following limitations are acknowledged:

  • The study was limited to a specific geographic area and may not be generalizable to other areas.
  • The study only investigated the effect of distance and depth on sea water intrusion and did not consider other factors that may contribute to sea water intrusion.
  • The study relied on a limited number of samples and may not be representative of the entire population.