Motion to Finalize Scope of Proposed Work Fairview/Grand Sewer Project

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separated system is not combined with sewage any overflows only contain stormwater and do not create the potential health hazards that this investment is intended to reduce.The other option is to build a containment basin and return the stormwater to the combined sewer system that contains wastewater. The preferred option for SDD is for the City to pipe the stormwater to a permitted stormwater discharge point keeping the separated stormwater out of the sewer system.If the stormwater system does not discharge to the sewer system,the connection to a stormwater discharge point would be part of the City's MS4 permit and would not be regulated by SDD's pretreatment program as no treatment would be required. The other option is similar to the residential sump pump connections described above on a much larger scale which,SDD does not encourage or support.If the storage and reintroduction plan is selected,SDD would need to provide a permit to the City.Because of the volume of water involved this permit would be subject to SDD's pretreatment ordinance and would require the City to test and treat the stormwater to prevent pollutants such as oils and chlorides and other constituents such as nutrients from entering the sewer system at the detention basin discharge point. Currently the cost of transporting and cleaning stormwater introduced to the collection system is not billed to anyone directly because there is no mechanism for recording the volume of water. If a detention basin is constructed there would now be a discharge point where the water can be measured, and the City's stormwater utility would be billed for the amount of water entering the system.There would be no SDD fees if the stormwater remains separated. Regarding the USEPA Consent Order,it is my understanding that City has submitted a plan to address the issues,however the USEPA has not responded to the City's plan.The goal of the Basin 5/6 project is to reduce backups and overflows by controlling stormwater.The best way to do this is to remove the stormwater from the system and route it to a stormwater discharge point.There is a very real possibility that the USEPA could object to the storage and reintroduction option after the project is completed and still require the stormwater to be routed to a MS4 discharge point. I look forward to hearing from you regarding the City's plan to address this matter. Respectfully, I Kent D.Newton,CPFO Sanitary District of Decatur Executive Director/CFO