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F HLINES AND SEEPAGE PITS achlines will serve as a secondary disposal field, and based upon the following criteria: achline will be 40 feet long. At the end of each line will be a 36 inch diameter seepage pit, deep. Total application area= 2 ft+ 2ft+2ftx (40ftx2) +2(148 ft2) = 776ft2. mporary storage volume =2 ft x 2 ft x 40 ft x 2 = 320 ft' +2(113 ft') = 546 ft' =4,084 gals SEPTIC SYSTEM OPERATION The septic system for the proposed facility is designed to operate as follows: Kitchen water from both the existing building and the new building, and wash water influent from clean-up of kettles, utensils, etc. plus floor drains will flow into the grease trap. Effluent from the grease trap will gravity to the secondary tank. All blackwater from toilets and graywater from sinks from both buildings will flow into the 2,000 gallon primary tank. The majority of digestion and paper accumulation will occur in this tank. Effluent from this tank will gravity to the 1,200 gallon secondary tank. The second compartment of this tank will have a dual pump system with a filter vault and an alarm system. The effluent from this tank will be pumped to a hydrosplitter®valve that will split the effluent flow equally between the chambers, and the leachlines and seepage pits. The filter bed should be considered as the primary disposal area. Effluent pumped to the leachlines and seepage pits will of course, be under pressure. Therefore, it must first come into a settling tank. The approximate volume per dose will be 228 gallons, so the tank should be a minimum of 250 gallons in volume. From this tank, the effluent will gravity to a distribution box/flow director to split the flow evenly between the two Ieachlines and seepage pits. V. CONCLUSIONS AND RECOMMENDATIONS Paramount to every issue regarding the septic system for this project, is the importance that water usage be kept to an absolute minimum. Running water must not be allowed in the kitchen area. Clean-up, including floor washing must be at a minimum. Low flow volume toilets and spring- loaded sink faucets must be used in the restrooms. Not only will minimal water usage allow the entire septic system to function as intended, but decreased water usage will alleviate nitrate loading. A water meter will be installed for this facility, so an accurate accounting of water usage can be kept. However, with the Chocoholics facility, not all.incoming fresh water will ultimately be septic system effluent water. A percentage of fresh water will be used in the making of low- fat" chocolate and a percentage will be used for landscaping irrigation, etc. Consequently, water usage accounting will be important. ; The nitrate loading calculations illustrate that the anticipated number of people on the property will contribute approximately 67% of the MCL for nitrate from the effluent recharge. 13 CFiesnmry Consulting