Monitoring Well

“Monitoring Well” 

A “Groundwater Monitoring Well” is installed to monitor the quality and quantity of groundwater. It is commonly used in ecological studies, environmental engineering, and water resource management. These wells are typically installed in areas where groundwater is at risk of contamination from various pollutants.

They are constructed using perforated pipes that extend to the groundwater level, allowing water to flow in for sampling. Some monitoring wells are equipped with data transmission systems or sensors to measure water levels and specific water properties such as temperature, concentration, and dissolved substances.

The data collected from these monitoring wells is crucial for assessing groundwater conditions and managing water resources. This information serves as a fundamental basis for analysis, situation assessment, and decision-making in environmental management by relevant authorities. Additionally, it helps in developing sustainable groundwater management plans and implementing protective measures to preserve groundwater sources in each area.

Why is the Installation of a Groundwater Monitoring Well Important?

If groundwater contamination occurs, the installation of Monitoring Wells can help identify pollution sources and develop timely solutions for mitigation and prevention. This is especially crucial for factories or companies at high risk of groundwater contamination, as they are legally required to monitor groundwater quality. Failure to install and inspect groundwater quality is not only a legal violation but also a significant environmental threat.

Groundwater Monitoring Well Installation

A proper monitoring well system should include at least three wells:

  1. Upgradient Well (1 well): Installed upstream (before the contamination source) to serve as a reference point for baseline water quality.
  2. Downgradient Wells (2 wells): Installed downstream (after the contamination source) along the natural groundwater flow direction to detect and measure pollution levels.

These wells should be drilled to the depth of the first groundwater level to ensure accurate monitoring of contamination spread. By implementing this system, businesses can comply with environmental regulations, prevent severe contamination, and take corrective actions before irreversible damage occurs.

Factories Required to Install Observation and Contamination Control Wells for Soil and Groundwater

1. Textile and Fiber Manufacturing Factories (excluding Asbestos)

Factories engaged in one or more of the following processes:

  • Fermentation, carbonizing, carding, combing, rolling, spinning, drying, doubling, twisting, winding, texturizing, bleaching, or dyeing fibers.
  • Weaving or preparing warp yarns for weaving.
  • Bleaching, dyeing, or finishing yarns or textiles.
  • Textile printing.

2. Pulp and Paper Manufacturing Factories

Factories engaged in one or more of the following processes:

  • Producing pulp from wood or other materials.
  • Manufacturing paper, paperboard, or fiber-based construction paper, including fiberboard.

3. Chemical and Hazardous Chemical Material Factories

Factories engaged in:

  • Manufacturing chemicals, chemical substances, or chemical materials.
  • Storing, transporting, sorting, or repackaging hazardous chemicals.

4. Paints, Varnishes, Shellac, Lacquer, and Filler Manufacturing Factories

Factories engaged in:

  • Manufacturing paints for coating, spraying, or covering surfaces.
  • Producing varnishes, paint thinners, or paint removers.
  • Manufacturing shellac, lacquer, or filler products.

5. Chemical Product Manufacturing Factories

Factories engaged in:

  • Producing furniture or metal polish, wax, or construction finishing materials.
  • Manufacturing disinfectants or deodorizing agents.
  • Producing waterproofing agents, wetting agents, emulsifiers, penetrants, adhesives, cements, or sealing compounds (excluding dental cements).
  • Manufacturing matches, explosives, or fireworks.
  • Producing ink or carbon black.
  • Manufacturing metal, oil, or water treatment compounds, photo-chemical materials, or light-sensitive films, papers, or cloths.

6. Petroleum Refining Factories

  • Factories engaged in petroleum refining, which involves hazardous chemicals and hydrocarbon processing that can lead to groundwater contamination.

7. Non-Ferrous Metal Processing Factories

  • Factories involved in smelting, alloying, refining, melting, casting, rolling, drawing, or producing non-ferrous metals (excluding iron and steel). These processes may release heavy metals that pose contamination risks.

8. Electrical Equipment Manufacturing Factories

Factories engaged in:

  • Manufacturing electric light bulbs or lighting fixtures.
  • Producing electrical insulators (excluding ceramic or glass insulators).
  • Manufacturing batteries (wet or dry type) and related components.

9. Surface Treatment and Coating Factories

Factories engaged in:

  • Painting, spraying, or coating surfaces.
  • Applying shellac, lacquer, or varnish coatings.
  • Plating, anodizing, or other surface finishing processes.

10. Central Waste Treatment Plants

  • Facilities that treat industrial waste, which may include hazardous substances requiring strict monitoring to prevent groundwater contamination.

11. Waste Sorting and Landfill Facilities

  • Facilities involved in sorting or landfilling waste classified under Ministerial Regulation No. 2 (B.E. 2535) under the Factory Act B.E. 2535, which pose risks of leachate contamination.

12. Industrial Waste Recycling Factories

  • Factories that process industrial waste or unused industrial products into raw materials or new products through industrial production methods, which may involve hazardous materials.

Services of One More Link

One More Link Co., Ltd. – Groundwater Monitoring Well Installation & Quality Inspection Services

One More Link Co., Ltd. provides professional groundwater monitoring well installation and water quality inspection services. Our expert team is ready to offer consultation and specialized solutions for monitoring well installation and groundwater quality assessment.

We are certified under ISO 9001 and ISO 14001, ensuring that our services meet international standards. Our operations comply fully with legal requirements at every stage, providing transparent and verifiable environmental solutions.