In the lower part of the casing, a well screen is fitted to allow water to enter while keeping out sedimentA casing (usually steel or PVC) is inserted well drilling into the borehole to prevent collapse and protect the water from contamination.In the lower part of the casing, a well screen is fitted to allow water to enter while keeping out sediment.
5. **Sealing and Grouting**
The space between the casing and borehole wall is sealed with grout to block surface contaminants from entering.
6. **Development and Pump Installation**
The well is cleaned (developed) to improve water flow, and a pump is installed to bring water to the surface.
Importance of Well Maintenance
A well’s efficiency and water quality depend heavily on proper maintenance. Regular inspections can detect issues like sediment buildup, declining water levels, or contamination. Disinfection and periodic water testing ensure the water remains safe for consumption.
Environmental and Safety Considerations
Well drilling must comply with environmental regulations to prevent contamination of groundwater. Drillers follow strict safety measures to protect workers and ensure structural stability. Improper drilling can cause water table depletion, land subsidence, or pollution.