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Therefore, the project could accommodate 33% more people than anticipated and not exceed the nitrate MCL. Safety factors were incorporated into the loading calculations, which include: 1. Use of 15 gallons/person, which is a high wastewater volume per person, making the calculations conservative. 2. The use of 103 mg of nitrogen per liter in comparison to 65 mg N/L typically used. 3. Nitrification suppression and denitrification potential may be higher than 20% in the shallow soils due to comparatively high clay content. The following benefits and safety factors have been incorporated into the Septic System Design Parameters: 1. 1,200 gallon Grease Trap to collect F.O.G. from chocolate kettle washout, cleanup and floor wash-up. 2. Two separate septic tanks. The primary tank will be used to trap and digest solids and paper, and can be pumped out at regular intervals. This particularly applies to paper accumulation within this tank. 3. Infiltrator® chamber filter bed has been oversized by 10% over calculated area. 4. By using chambers and applying the effluent over a large area, and at a shallow depth, will take full advantage.of the soil treatment capabilities, including impedance of nitrification and increasing denitrification potential. From personal communication with Dr. George Tchobanoglous, who is considered one of the world's authorities on wastewater, effluent disposal should occur as high in elevation as possible within the soil profile. 5. Two leachlines with seepage pits providing a combined 220 lineal feet of leachline: 40 -x-40 + 70 +70=220 feet. A hydrosplitter® valve will be installed to distribute flow automatically and equally between the chambers and leachlines/seepage pits. This will allow for short resting and digesting periods of both disposal systems. 6. The use of landscaping within the disposal area to uptake a theoretical 35% of nitrogen within the septic effluent, discussed below. 7. A monitoring program may be implemented. This would include observation ports that are built into the chambers to view hydraulic loading, infiltration and percolation, biomat buildup, and subsurface soil sampling. An observation port may be installed in the first chamber, middle chamber and last chamber. In addition to the calculated reduction in nitrate-nitrogen loading, a further decrease in loading should occur from disposal field landscaping. Since the effluent will be pumped to the chambers and dispersed through piping orifices at the top of the chambers, plant roots should not grow into the openings and plug them. Because the chambers are louvered, the roots can grow next to the louvers, and under the chamber trenches to take up nitrogen. Plants utilize only two forms of nitrogen: nitrate and ammonium (NH4). Approximately 75% of w conventionally treated septic effluent is ammonium. The theoretical nitrate loading concentration will discharge no greater than 10 ppm nitrate-nitrogen or 45 ppm nitrate, so the ammonium fraction is unknown without quantitative analysis. Therefore, percentages of the maximum nitrate and ammonium concentration in the effluent will be correlated with the amount 14 d Chesney Consuhin