On October 1, 2015 Fort Worth increased wholesale sewer rates to the City of River Oaks another 9.27% for treatment costs. With that, the City of River Oaks has to incorporate those additional costs into the costs for maintaining the sewer system. In calculating sewer rates, the city not only have to take in account the cost of treatment by Fort Worth, but we also have to consider the costs for maintaining the city’s collection system. The new rates will become effective with the November 15th utility billing, which is the first billing cycle after November 1, 2015. (See enclosed rates).