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STATE OF CALIFORNlla:, ' ) <br /> SS <br /> COUNTY OF SAN JOAQUIN ) <br /> I , MARSHALL McCARTY, being duly sworn, declare that I was <br /> Plant Superintendent at California Clay Products Company and was <br /> employed by California Clay Products Company for the years 1953 <br /> to 1971. <br /> That I was in charge of the clay digging operations in the <br /> ten-acre clay pit at 3200 S. McKinley Avenue, Stockton, California. <br /> That this pit was bottomed at approximately twenty-one 1) <br /> feet below ground surface when quarrying ceased in 19 7. That during <br /> the years 1966 and 1967 in digging small test holes at various <br /> portions of the Pit to determine the clay reserve, I found that <br /> the dense calcareous hardpan clay extended uniformly, and without <br /> sand strata, to a further depth of at least fifteen (15) additional <br /> feet from the bottom of the pit, and that the groundwater table <br /> lay well below this thirty-six (36) foot level. <br /> No actual test holes have been drilled below thirty-six (36) <br /> feet however from my general knowledge-of this area of Stockton, <br /> I believe the tight clay deposit is at least fifty (50) feet <br /> thick. <br /> n <br /> MARSHALL McCARTY <br /> Subscribed and sworn to before me <br /> this ��� day of -' ( , 1973. <br /> A1P,t-Ybol)NIA �t' <br /> (OLlidly <br /> Notary ublic in and r the County . . . <br /> of San Joaquin, State o California. <br /> y t <br />