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Dane County <br /> `�` ='' 1' Community Support & Health Services Department <br /> Paul Meyer PUBLIC HEALTH DIVISION <br /> Director <br /> ENVIRONMENTAL HEALTH James P.Clark.R.S..Director <br /> 1206 Northport Drive,Room 107 (608)241-4481 <br /> Madison,Wisconsin 53704-2088 <br /> January 31, 1989 <br /> TO: R. Richard Wagner, Chairman, <br /> Dane County Board of Supervisors <br /> FROM: James P . Clark, R.S. , Director <br /> DANE COUNTY ENVIRONMENTAL HEALTH DIVISION <br /> • <br /> RE: Proposed Racetrack in Town of Rutland <br /> At your request I have reviewed the proposed Rutland Racetrack <br /> facility from the perspective of the wastewater treatment <br /> alternatives and groundwater quality considerations . <br /> The sizing factors for either a private septic tank - soil <br /> absorption system or a holding tank system are contained in <br /> Wisconsin Administrative Code ch ILHR 83 . The sizing of either <br /> system would be based on the maximum proposed useage rate for <br /> various activities and the factors identified for those activities <br /> in the code. The calculations based on the information provided <br /> are attached. <br /> The estimated wastewater flow for this facility would dictate <br /> the use of a pressure distribution system if a soil absorption <br /> system is selected. Since the estimated wastewater flow is in <br /> excess of 8,000 gallons per day, the plumbing code would require <br /> a 3 cell absorption area, with each cell having 50% of the minimum <br /> required area. The surface area necessary for such a system would <br /> be in excess of 2 . 6 acres. Finding a site large enough which <br /> has all the necessary suitability characteristics would be very <br /> difficult . Even if an area could be found, the logistics of <br /> constructing a system that large would be beyond the capabilities <br /> of installers known to us and would require a committment of <br /> inspectional staff beyond our ability with current staff. <br /> If sufficient area for a soil absorption system could not be <br /> found, a holding tank system could be considered. The plumbing <br /> code requires a minimum 5 day capacity for holding tanks serving <br /> public buildings , which translates into a 377 , 000 gallon capacity. <br /> There is a code limitation of 4 tanks that would be allowed to <br /> meet this capacity. Therefore site constructed tanks would <br /> likely be the only option. The cost of construction of these <br /> tanks would be substantial to say the least . Pumping, hauling, <br /> and dumping even half the estimated daily wastewater volume <br /> could easily require around the clock effort . The Regional <br /> Planning Commission summary of these costs are not unrealistic. <br /> Prior to the issuance of a sanitary permit to allow the installa- <br /> tion of holding tanks the Town would be required to sign an <br />