Concerns regarding drilling borewell near septic tank

We are constructing our house. Plot size is 40x60ft. Definitely we are constructing a septic tank. Now we want to do a bore well also.  Due to lack of space we are not able to increase the gap between them,  it is around 5 feet. People are saying - "don't make the bore well near the septic tank".  My question is:
Is there any chance of contamination of water if we are taking appropriate care during construction of Septic Tank


7 November 2007