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981 <br /> MA Kloberdanz & Associates P.O. Baa 5esto, Californiaia 95 9 <br /> Mod5357357 <br /> Environmental Assessment Phone: (209) 577-8186 <br /> Fax: (209) 577-8158 <br /> RIP QNA MARKET <br /> 223 W. Washington Street, Ripon, California <br /> C� <br /> Quarterly Groundwater Sampling Report <br /> July 2001 r, <br /> c ' <br /> NARRATIVE <br /> On July 16, 2001 M J Kloberdanz & Associates, in conjunction with GeoAnalytical <br /> Laboratories, Inc , conducted quarterly groundwater monitoring of the Ripona Market site <br /> at 223 W Washington Street, Ripon, California Quarterly monitoring activities consisted <br /> of depth to water and water characterization measurements, well purging, and <br /> groundwater on three groundwater-monitoring wells located at this site and laboratory <br /> analysis of water samples collected from the wells <br /> Depths to groundwater measurements were obtained from the three groundwater- <br /> monitoring wells and the wells monitored for floating product before purging Each well <br /> was evacuated of at least three well volumes by means of a steam-cleaned, stainless steel <br /> bladder-type pump During the purging of the wells, field pH, electrical conductivity, and <br /> temperature measurements were monitored to verify well stability and to insure that <br /> representative groundwater samples were collected Once well stability was achieved, <br /> groundwater 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 and then logged on a Chain of Custody form and delivered to GeoAnalytical <br /> Laboratories, Inc , a state certified laboratory, located in Modesto, California The water <br /> samples were analyzed for BTEX, MTBE and the Oxygenated Compounds including EDB <br /> and 1,2 DCA (EPA Method 8260B) and gasoline range petroleum hydrocarbons (EPA <br /> Method 5030, GCFID) All of the water samples were analyzed by the laboratory for <br /> dissolved oxygen by Method SM4500-0 G Nitrate, Ferrous Iron and Sulfate were also <br /> included in the analysis <br />