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ts: <br /> 2.4 Soil Chemical Test Resul <br /> Chemical analytical assessment of the subsurface soils was-done on the Ales-at the respective <br /> depths; retrieved from the two perc test born sin Area # #2.d Are The test results are noted on <br /> the Soil Analysis Reports m Appendix�1.� <br /> The nitrate-nitrogen content shows-a--very-low-to-lo consistent nitrogen concentrations throughout <br /> the soil profile in both Dispersal�re n y stratum at.the -11 ft depth in Area 91 had a <br /> medium nitrate-nitrogen coneentratio at 13 pp <br /> Since septic tank effluent is composed rid tel of ammonium , the H along with the Cation <br /> p p y4) p g <br /> Exchange Capacity(CEC), l�a�e influence.on ammonium molecules. The pH of the soil profile is alkaline <br /> with all samples above 8:0. This pH profile may have a defined suppression effect on nitrate formation <br /> (nitrification)by affecting molecular ammonium stability. Secondly, for nitrate that does form, alkaline <br /> environments.may increase the potential for,denitrification. <br /> The CEC measures the ability of the soil to theoretically trap and hold ammonium molecules, thus having <br /> an influence on suppression of nitrification. From the CEC test-results,there appears to be low retention <br /> potential due to the lack of significant clay in the soil profile <br /> The following Table illustrates the encountered soil profile characteristics, along with the analytical test <br /> results for comparison purposes: J� <br /> i <br /> F <br /> Page -7- <br /> Chesney Consulting <br />