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" ,-� �� P.O. Box 576981-6981 <br /> M.J. Kloberdanz & Associates ��,� odesto California 95357 <br /> Environmental Assessment Phone: (209) 577-8186 <br /> ?� NO V 1 5 2002 Fax: (209) 577-8158 <br /> ENVIRONMENT HEALTH <br /> PERMIT/SERVICES <br /> RIPONA MARKET <br /> 223 W. Washington Street, Ripon, California <br /> Quarterly Groundwater Sampling Report <br /> October 2002 <br /> NARRATIVE <br /> On October 17, 2002 M J Kloberdanz & Associates, in conjunction with GeoAnalytical <br /> Laboratories, Inc , conducted quarterly groundwater monitoring of the Rlpona Market site <br /> at 223 W Washington Street, Ripon, California Quarterly monitoring activities <br /> consisted of depth to water measurement, well purging and water characterization, <br /> groundwater sample collection and laboratory analysis on three groundwater-monitoring <br /> wells located at this site <br /> The three groundwater-monitoring wells were monitored for floating product and depth to <br /> groundwater measurements obtained before purging the wells Each well was evacuated <br /> of at least three well volumes by means of a steam-cleaned, stainless steel bladder-type <br /> pump During the purging of the wells, field pH, electrical conductivity, and temperature <br /> measurements were monitored to verify well stability and to insure that representative <br /> groundwater samples were collected Once well stability was achieved, groundwater <br /> samples were collected Field data sheets are presented in appendix B <br /> The groundwater samples were labeled and placed in an ice chest cooled with blue ice or <br /> crushed ice, logged on a Chain of Custody form, and delivered to GeoAnalytical <br /> Laboratones, Inc , a state certified laboratory, located in Modesto, California The water <br /> samples were analyzed for BTEX, MTBE and the Oxygenated Compounds including <br /> EDB and 1,2 DCA (EPA Method 8260B) and gasoline range petroleum hydrocarbons <br /> (EPA Method 5030, GCFID) <br /> SUMMARY FINDINGS <br /> Groundwater was present as an unconfined state at a depth of approximately 25 5 feet <br /> below ground surface at the Ripona Market site on October 17, 2002 The unconfined <br /> water table was present approximately 0 5 foot feet lower than in the July 2002 <br />