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1 <br />1 <br />' <br />Total peak hourly wastewater flow for the study area in 1972 was approxi- <br />mately 0.38 million gallons per day (mgd). <br />Present flows were determined similarly from present population estimates <br />obtained from 1984 aerial photographs. Peak hourly flows for the study <br />' <br />area are about the same as they were in 1972 and are presented in Table <br />4-5. <br />4.4 PERFORMANCE OF EXISTING ONSITE SYSTEMS <br />It is ver difficult to evaluate the efficiency of a septic tank due to <br />Y Y P <br />' <br />the lack of standards to govern their operation. One indication of the <br />suitability of septic tanks in a certain area is the number of complaints <br />registered by homeowners. A local official who is concerned with septic <br />' <br />tanks on a daily basis was interviewed to determine his experiences with <br />septic tanks in the area. <br />Mr. Glenn R. Schuessler of the Florida Department of Health and <br />' <br />Rehabilitative Services said his office receives a number of complaints <br />about septic tanks in the Rockridge area. He said that the Rockridge area <br />is one of the worst areas in the County concerning septic tanks and that he <br />' <br />has received many complaints from that area. The typical problems are lack <br />of septic tank maintenance, clogged drainfields, a high-water table and <br />' <br />poor storm drainage. <br />' In the case of clogged drainfields, a remedy often chosen by homeowners is <br />to have the tank pumped out, but that does not solve the problem. The best <br />tsolution is to completely restructure the drainfield by removing the sludge <br />and replacing it with sand and gravel. This is quite expensive for the <br />' homeowner. <br />It should be noted that complaints from residents only result from obvious <br />' operational failures of the septic tank as indicated by sewage back-up into <br />' IRC.VB4 <br />6/4/87 <br />4-14 <br />