This project focused on mapping factors that affect the stormwater drainage system and contribute to flooding in the Khlong Toei slum in Bangkok, Thailand. Among the factors we identified were improper waste management and low elevation. Interviews with residents revealed that flooding reduces mobility, increases pest infestations, and causes houses to sink. Our recommendations include implementing waste management programs, raising walkways, and covering drainage trenches with grates to mitigate the effects of flooding in the community.