Water is a fundamental resource for any construction project, and choosing the right source is crucial, especially in Bali where water availability and quality can vary significantly. This article explores different water supply options, considering factors relevant to today’s construction business in Bali.
Understanding Your Options
Several water sources are available, each with its own pros and cons:
- Natural Springs: If you are fortunate enough to have access to a pristine natural spring, this can be an excellent option. Spring water is typically rich in minerals, but it’s essential to test the water for contamination before use. Contamination can come from various sources, such as nearby farms.
- Streams and Rivers: While seemingly convenient, streams and rivers are generally not recommended due to potential contamination. These waterways are often used for waste disposal and can contain harmful bacteria and other pollutants, even in rural areas. If you consider this source you will need a reliable reverse osmosis filtration system.
- Dug Wells: Historically a common source, dug wells involve hand-digging a hole, usually 1 to 2 meters in diameter and up to 20 meters deep. However, digging wells can be hazardous due to the risk of collapse and carbon dioxide poisoning. Moreover, it’s challenging to create a watertight lining, increasing the risk of contamination from surface water. If you consider wells, they should be dug at the end of the dry season when the water table is lowest. Wells need to be lined to prevent collapse and surface water contamination using precast concrete rings.
- Drilled Bores: Bores have become increasingly popular because they are typically deeper than wells, often ranging from 30 to 130 meters deep depending on the area. Bores are generally safer, quicker, and more reliable than wells. They are lined with PVC casing that prevents the hole from collapsing and ensures water enters from the bottom after being filtered through the earth. Bores can be drilled manually or with a diesel engine.
- Government Water Supply: If available, the government water supply can be a practical choice. While the water is treated with chlorine, the reliability and pressure of the supply can vary. It is essential to have an underground storage tank with a pump to avoid pressure variations. Also, any leak in the system will cost money if connected directly to the household water system, since the government supply will measure the usage.
Key Considerations for Construction Projects
When choosing a water source for your construction project, consider the following:
- Water Quality: The water source must provide clean and safe water for construction activities and human use. It’s essential to conduct water testing, particularly for springs and wells, to ensure there’s no fecal or mineral contamination.
- Reliability: The supply of water should be consistent throughout the project. Government water can be unreliable in some areas of Bali. Wells can also vary between the wet and dry seasons.
- Cost: The initial cost of installing the source and the ongoing cost of usage. If you have a government supply, the water will be measured and charged accordingly.
- Safety: Prioritize the safety of workers and the public by ensuring that the water source is safe from collapse and contamination. Consider that digging a well is a dangerous process.
- Sustainability: Choosing a sustainable water source can help reduce the environmental impact of your construction project. Consider rainwater harvesting as an alternative.
Conclusion
Selecting the appropriate water source is a critical step in any construction project in Bali. By considering the pros and cons of each source, you can ensure a reliable supply of clean water, contributing to the success of your project. Prioritize quality, reliability, and safety when choosing your water source to avoid potential issues later on.
