Powai Lake is an artificial lake located in Mumbai that was constructed in 1891 as a measure against water famine. It has experienced problems with decreased area due to development, water quality deterioration from untreated sewage and garbage, and heavy siltation that has reduced its depth. Proposed solutions to address these issues include installing septic sewage pumping systems, patrolling to prevent damage and littering, education programs to raise awareness, bioremediation to remove pollutants, landscaping, desilting to increase water quantity, restricting construction in catchment areas, and promoting environmental ethics.