Shit Flow Diagram (SFD), Bansberia

A Sanitation (or Shit) Flow diagram presents a clear picture of how excreta flows are managed within thecity. The diagram clearly depicts how excreta flows from user interface to the final disposal. It has the following stages:

➣ Total population within municipality is dependent on onsite sanitation systems
➣ The containment systems in Bansberia mainly comprise of septic tanks and pits
➣ Most of the septic tanks do not adhere to the standards prescribed by the Bureau of Indian Standards (BIS)
➣ There are 4 main types of containment systems found in Bansberia
• Septic tank connected to soak pit (20% population)
• Septic tank connected to open drain (4% population)
• Fully lined tank connected with no outlet (4% population)

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