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� v <br /> 0 <br /> 1 <br /> A S S O C I A T E S I N C <br /> April, 1999 <br /> 13099 <br /> 1 <br /> Mr Harlin Knoll <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> 1 304 E Weber Street, Third Floor <br /> Stockton, California 95202 <br />' Subject Additional Subsurface Investigation at Ripon Unified School District, 304 North <br /> Acacia Avenue,Ripon, California <br /> Dear Mr Knoll <br /> ATC Associates Inc has completed the Subsurface Investigation of the above referenced site The <br /> attached report summarizes our activities and findings Based on our findings, further investigation <br /> of the subject site appears to be warranted ATC recommends installing two additional groundwater <br /> monitoring wells to the southeast and southwest of the well MW 1 to define the lateral extent of <br /> impacted soil and groundwater <br /> If you should have any questions or comments regarding this report or our recommendations, please <br /> feel free to call us at your convenience at(209) 579-2221 <br /> Respectfully submitted, <br /> 1 ATC Associates Inc <br />' K i <br /> Drew Van Allen ,' <br /> Staff Scientist 1,` <br /> ' _ f <br /> Jeanne Homsey, <br /> CA Registered Civil Engineer No 47410 <br /> tcc Mr Leo Zuber, Superintendent Ripon Unified School District <br /> ell Mr Mark List, RWQCB <br />