There are remains of a water drainage system. Kolkata was pioneer in introducing the underground drainage system in 1878. The town has an open drainage system. Bell pits often flooded due to a lack of a drainage system. This causes accretion of sand above the drainage system. The palace had bathrooms, toilets, and a drainage system. There was no electric power and no drainage system. Most are not connected to the existing drainage system. Rain water is recycled via a new drainage system. Houses fell into disrepair and the drainage system collapsed. By 1975, earthworks and a storm drainage system had been completed. Brazil's sewer/drainage system dates from the early 20th century. This drainage system was multi-purposed. A new field and drainage system were additionally installed. There may come a time when the current drainage system is rendered ineffective.