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October 12,2(M Job Number:LG00-312 Page 7 Soil Name'and. De th to p {' ) IIaified Sail Salinity Soil Septic tank ' Map Symbol. Classifcation mmhoslcm Reaction absorption' .,PH fields )ahant loam,0 .0-16:-Loam. MAA,ML ,<2 5.6-6.5. Severe:peres � to 2 ' rcent 1626: 1 1� Cay loam,clay- CL <2 6.1-7.8 slowly. slopes,241 26-60:Nduraterl Note: The table descriptions do not necessaril pn y reflect site-specific soil properties. - Twenty-two(22)shallow borings were drilled and completed for percolation'tests by Neil �. Anderson:&Associates, Inc. to characterize the,subsurface and locate a'suitable site for the a ° -proposed septic fields in the parcels. Most of the drilling landed in-a permeable,material between the depths�'of 310 25-feet. Several borings were drilled and did not encounter suitable material' on the first try. In these few cases,the borin s were re-located 10 to I00-feet from h S om t e first boring and eventually encountered suitable material (see Plates 11 to 32 for boring information)., a Generally the sediments observed at ihe�lo ' ' . Y wer elevations{borings 5-11 and boring' s 17-21) € of the.site consisted of a dark, often organic-sandy surface clay, generally about'1-foot_thick. C Located below the surface'layer was,occasionally.a 1 to 2-feet thick, cemented silty"hardpan" laye'r.to a total depth-of about 2-feet- Located below.the hardpan layer were lenses of.sand'and' silt often containing clay mixtures. Generally the sediments ranged in composition, thickness, and depth throughout the site. The sand, silt, and clay mixtures encountered along the lower.elevation .sites often ranged between a few feet to about 10-feet ur thickness. The original depositional environment appears to be`fluvial (river/stream)environment. The higher elevations (borings 1-4 and-borings 12-16)were:composed of slightly different materials and consisted.of generally sandy sons most often contained a matrix of finer grained - matei ial:like silt.or clay. Generally the sediments ranged in thickness depth and composition U. eP, l� throughout the site. These soils can be found at higher elevations and contain layers usually under. .1 I-feet thick.. The,original'depositional environment of this area also-appears to be river/stream t environment. For each of the twenty-two {22)parcels, a percolation test was'performed to demonstrate . each'parcel's capacity.for soil.percolation for use with an on-site septic system. For eighteen (18) of the twen -two 22 cels' h ,d of fhetest was determined b setting the casing I aceiT I to the,most rmeable material(usually'sand)found to a maxim th f B-f T. = e LLL. - - - r