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BUCKEYE RANCH ( 4- 1-92) 6 carried out in a very short period of time . As can be seen below the soils collected provided excellent results . SOIL CHEMISTRY OF ELEVEN SAMPLES COLLECTED ON JANUARY 24 , 1992 LOCATION PHOSPHATES pH Carbonate Color 100 yards east of dam( 2 )* 4 . 5 6 . 2 none 10YR 3/2 130 yards east of dam( 1 ) 4 . 25 6 . 5 none 10YR 3/2 . 5 150 yards east of dam( 20 ) 4 . 5 6 . 2 none 10YR 3/2 Lot 14 , east side 6 . 0 7 . 3 2 IOYR 3/2 . 5 Lot 14 , north side 5 . 75 7 . 7 3 10YR 3/2 . 5 Lot 19 , 15 ft . depression 2 . 5 5 . 9 none 10YR 4/3 Lot 19 , 30 ft . depression 4 . 25 6 . 1 none 10YR 3/2. 5 Lot 21 1 . 0 5 . 4 none 10YR 4/4 East of Lot 21 1 . 0 6 . 0 none 10YR 4/4 150 yards west of Lot 1 6 . 0 7 . 5 2 10YR 3/2 . : Middle of NE Quad Sec . 9 6 . 0 7 . 5 2 l0YR 3/3 C83 Phosphates : A value of 1 . 0 means essentially absent while a value of 6 . 0 represents a highly concentrated occurrence . PH: A value of 6 . 9 or less represents acidic . 7 . 0 is neutral , and 7 . 1 and above is alkaline . Carbonates : The higher the number the greater the concentration in the sample . Soil Color : 10yr represents variations of brown with 3/2 dark grayish brown , 4/3 dark brown , 4/4 dark yellowish brown , 3/3 also dark brown . *Locations 2 . 1 , and 20 on the map on file at the Institute of Archaeology and Cultural Studies at CSUS correspond with the three samples of soil from east of the dam. These locations may have been marked on the map by John Beck when he visited the area in the early 1970s . The samples from Lot 14 were at a major archaeological deposit that is on the periphery of the "LAKE SITE" . the sample from 150 yards west of Lot 1 is an archaeological site and may be a remnant of CA-SJO-13 or one of the other previously recorded sites , and the sample from the middle of Section 9 is from an archaeological site on the southeastern side of Tracy Lake that was not recorded by the consulting archaeologists . These four samples represent the highest phosphates , are alkaline , contain carbonates and tend to have a grayish cast , when dry, to their dark brown color . It is quite clear that the samples taken from Lot 21 and adjacent to it are from non archaeological deposits . The. samples taken from 100 to 150 yards east of the dam may represent an older archaeological site which has had its carbonates leached away and has returned to a pH similar to the surrounding soils . The moderate level of phosphates suggests that some human activity has occurred in this location . The samples from the depressions on Lot 19 are not conclusive . The presence of phosphates might represent human activity but the M46