Volume No. 2 Issue No.: 4 Page No.: 523-529 April-June 2008

 

SPECIFICATION OF THE SANITARY BOUNDARIES OF A WELL

 

Behzad Shahmoradi*1 and Abdollah Qavami2

1. DOS in Environmental Science, University of Mysore (India)
2. Manager of Composting plant, Municipality of Sanandaj City (Iran)

 

Received on : October 26, 2007

 

ABSTRACT

 

The qualitative protection of the groundwater reservoirs that play a role in supplying drinking water of wells is one of the responsibilities and concerns of the people in charge of supplying and distributing drinking water such as water authority organizations and water and wastewater companies, nowadays. In summary, sanitary boundaries of a well are the same as surface or subsurface areas around the well that supply well water during pumping. Contaminants can move and reach the water inside the well from this region. Minimum Safety Distance (MSD) is defined as local conditions, the most important which are the geological and hydrological conditions, the quality of wastewater disposal in human communities and the number of sources of contamination present in the region. MSD is dependent on aquifers, soil layers, soil permeability, groundwater flow direction and velocity, concentration of pollutants, etc. Thus the specification of MSD that can be applied globally is very difficult for different areas. Sanitary boundaries include contamination-exposed boundary (R1), mandatory protection boundary (R2) and protection boundary (R3). In order to do this, the optimum and accurate calculation of boundaries using the scientific principles are of great importance because the calculation and application of the smaller boundary increases the risk of pollution and the application of the more extended boundary leads to the loss of budget. With regard to the importance of water supplies as one of the causes of development and their exploitation for different operations and with attention to our country’S climatic characteristics that is considered as one of the arid and semi-arid regions of the world, serious investigations and researches in this field are necessary.

 

Keywords : Sanitary boundary, Minimum Safety Distance, Qualitative protection

 

 

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