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To: File, 2280 French Creek Circle <br /> From: Stephen Weckman, On-Site Systems Manager <br /> Date: July 6, 1992 <br /> Subject: Septic System Problem <br /> This memo is to update our monitoring of the failing septic <br /> system at this address. Please note memo's from Michael <br /> Gaffron and myself dated May 31, 1991, and S-P Testing dated <br /> August 16 ,1991 for back ground information regarding this <br /> problem. <br /> In order to better determine what is causing the septic <br /> system failure, a water meter has been installed for the house <br /> and a pump counter and a check valve have been installed in the <br /> pumping chamber. The water meter was installed in the house to <br /> determine the amount of actual sewage entering the system, while <br /> the pump cycle counter was installed to determine whether surface <br /> or ground waters are entering the septic tanks, vahich would <br /> increase the amount of of liquid entering the mound for <br /> treatment. A check valve was installed after the pump in order <br /> to prevent effluent from draining back to the septic tanks after <br /> being pumped into the mound. <br /> The initial intent of installing a water meter was to <br /> establish the total water usage inside the residence. The <br /> plumber has notified us that the water meter does not include the <br /> laundry facilities and kitchen sink as well as the exterior <br /> faucets. The interior plumbing was not included due to the <br /> constraints of the interior plumbing, while the exterior faucets <br /> were excluded as they would not add to sewage entering the septic <br /> system. As several interior plumbing fixtures are not metered, <br /> the actual water usage in the house may be more accurately <br /> reflected by the pump counter readings, assuming there is minimal <br /> infiltration into the house underground waste piping. (The pump <br /> counter readings were intended to determine any surface or ground <br /> water infiltration into the septic system, but this evaluation is <br /> not possible since some fixtures were omitted.) <br /> The pump cycle counter has been monitored by Doug Todd of <br /> Bruce Bren Homes for approximately one month. The data from his <br /> inspections are as follows: <br /> Date Counter Reading Water Usage (Gallons Per Da ) <br /> (Based on Counter Reading� <br /> 6/5/92 31 <br /> 378 <br /> 6/8/92 39 <br /> 378 <br /> 6/18/92 61 <br /> 620 <br /> 6/19/92 69 <br /> 388 <br /> 6/23/92 79 <br /> 357 <br /> 6/29/92 93 <br />