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-As denoted on the site plan map, the first boring completed.was a five ft deep boring in the center of the floor of the holding pond. The b- om'of boring was approximately�18'ft below the ground surface. A sample was retrieved from this five=ft depth for a "baseline" analysis, before Ahe introduction of wastewater from the asparagus washing process. The second boring completed.was Peri ft in depth next to the pond, and was-drilled to test tle=theoretical hydraulic _ = - ' conductivity of the soils lining the embankmeritsand floor of the holding,pond. The third boring was drilled.to 45,ft in depth for.classification�of'the soils every five ft, and chemical analyses of the soils at depth's of 0-6 inches, 5 ft 25 ft and 45 ft. = As illustrated on the attached Log of Boring,_the soils were cI'' ified`in the field during the 45 ft boring procedure. In addition to`classif cation in the field;_the soil samples were analyzed for, sand, silt and-clay particle size analysis, as determined-on the.SOIL ANALYSIS REPORT. The - following is a summary of the particle size,as determined from the above-referenced locations and depths: _ = PARTICLE SIZE ANALYSIS.- SAND NALYSIS-._- - E DEPTH AND SAND % SILT % CLAY % . USDA SOIL TEXTURE E LOCATION _. _ 5 FT BELOW FLOOR OF 57 _ _36 7 = SANDY LOAM - - HOLDING POND - - - - 0-6 INCHES(45 FT DEEP 21 38 41 CLAY = . - BORING) 5 FT DEEP(45 FT'DEEP 61 30 _ 9` - SANDY-LOAM -BORING) 25 FT DEEP(45 FT DEEP 25.- 56 19 SILT LOAM BORING) a - :. .- 45 FT-DEEP(45 FT DEEP 725 60 15 y SILT LOAM BORING) A feature of the soil observed in the 45.ft boring was rust mottling of the silt loam strata from25 ft to 45 ft. This can be attributed-to an anaerobic environment: Rust mottling occurs when, _ - anaerobic.bacteria decompose organic matter and create oxidized iron{rust) in their metabolic .processes. Indication that these two.conditions are:present_ organic matter and an anaerobic -environment demonstrate that the denitrification process maybe promoted. Denitrification is the" conversion of nitrate to.gaseous products and the primary means by which nitrate concentrations_ v are reduced. :This may be evidenced by the decrease in nitrate-nitrogen(NO3-N) concentrations _ from the 25-ft depth, where the NO3-N_was S ppm to the 45-ft depth, where the NO3_N_- concentration was 3 ppm a:167%reduction - Additional chemical analysis of the soil samples was-done to quantify several constituents: The = _ Total Kjeldahl Nitrogen(TKN), organic and total nitrogen concentrations of the samples are - normal for agricultural soils and consistent-throughout the soil profile from 6 inches down to 45 ft, - = Vaffey Ag research