Also washing of trucks in the area contributes to the pollution by adding oil and petrol to the sewage. PMC estimates that 40,000 people could be provided with drinking water at per capita cost of  as compared with the existing per capita cost of .
Furthermore, the practice of washing trucks in the surrounding area also contributes to pollution by releasing oil and petrol into the sewage. According to PMC, 40,000 individuals could be supplied with clean drinking water at a lower per capita cost than the current rate.