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Pg. 2of10 <br /> Plan Narrative <br /> Carl Bandt is planning an addition to his lake cabin located at 27862 Leef Rd. located in Jackson <br /> Township in Barnett County. Carl's plan is to add bedrooms to the current structure which will <br /> require a revision to the existing sanitary system in the form of the addition of an aerobic <br /> treatment unit. <br /> In.lune of 2009 a new sanitary system was installed under State Sanitary permit# 532141. The <br /> site required an individual site design and the transaction ID# was 1593562 and the site ID#was <br /> 742915. The new system addressed Carl's need for surge capacity as the cabins use involved <br /> limited use during the week with an increase in flow starting Friday aftemoon and continuing <br /> through the weekend as family members arrived. The initial plan was to pre-treat the wastewater <br /> taking advantage of the downsizing capabilities ac there is very limited area for sighting a <br /> sanitary system. The initial estimates for the new system including pre-treatment was more <br /> expensive than anticipated so we went to Plan B which involved an individual site design basing <br /> the wastewater flow on the entire week versus a single day. This design incorporated the use of <br /> surge capacity based on a flow equalization table of the weeks expected water use. The proposal <br /> also had to address the removal of an existing 12' x 40' drain field. This drain field was removed <br /> and the new systems dispersal cells lowered below the current sanitary systems elevation. By <br /> removing the existing system we also removed the required insitu soils that were to allow for the <br /> Eisa credit.This was addressed in the original individual site design and was agreed that the <br /> Astm-C33 sand would provide a suitable equivalency to the insitu sandy soils removed.Three <br /> dispersal cells constructed of EZ Flow media were installed with 3 R of Astra C-33 sand placed <br /> between the cells. <br /> 'rhe treatment train consists of a Wieser Concrete 750 gallon septic tank gravity flowing to a <br /> Norwesco 1250 gallon surge tank fitted with duplex pumps. The surge tank has an Installer <br /> Friendly Series single phase duplex (Demandrrime Dose)panel. This panel can be configured in <br /> the field to either time or demand dose. A Simtech STF-100 effluent filter is located within the <br /> force main loop handling the filtering requirements. It is noteworthy to state here that a gap in <br /> the treatment was saved for a future pretreatment unit. <br /> Our current proposal is to add a Bio-Microbies MicroNst 0.75 pretreatment unit capable of <br /> handling up to 750 gallons per day.This unit will be installed in an Infiltrator Systems IM-1 060 <br /> injection molded plastic tank upstream of the existing duplex time dose tank. The dose tank will <br /> be reconfigured to time dose 100.60 gallons including drain back every 3 hours. The treated <br /> wastewater will be dispersed to the three existing 3 ft. x 50 ft. dispersal cells giving us a total of <br /> 150 lineal feet. The design wastewater flow of 750 gallons/day/150 lineal ft. gives us lineal <br /> loading rate of 5.0 gals./ft./day <br /> By the addition of this aerobic treatment unit we have provided the necessary tools for treating <br /> and dispersing the wastewater from Mr. Bandt's cabin for the foreseeable future. <br />