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Advanced , ,".AF IITAL HEAL <br /> GeoEnvironmental, Ifics_6 PM I: <br /> 02 October 2003 <br /> AGE-NC Project No. 01-0865 <br /> Ms. Devra Lewis <br /> Central Valley Regional Water Quality Control Board <br /> 3443 Routier Road, Suite A <br /> Sacramento, CA 95827 <br /> Subject: Response to Comments <br /> HERMAN& HELEN'S MARINA <br /> 15135 Eight Mile Road, Stockton, California <br /> Dear Ms.Lewis: <br /> At the request of Mr. Andrew Smith of Herman&Helen's Marina,Advanced GeoEnvironmental, <br /> Inc. (AGE)has prepared this response to comments in the Central Valley Regional Water Quality <br /> Control Board(CVRWQCB)letter dated 11 August 2003.The comments were made in conjunction <br /> with the review of three AGE-prepared technical reports for Herman &Helens Marina located at <br /> 15135 Eight Mile Road, Stockton, California. <br /> AGE's response to comments in CVRWQCB letter dated 11 August 2003: <br /> 1. The step draw-down pumping test started pumping,at a rate of two gallons per minute,but <br /> does not include a discussion of the rationale for starting this type of pumping test at such <br /> a high rate. H&H Marina needs to provide the rationale for the pumping rates selected for <br /> the step draw-down pumping test. <br /> The test was designed to obtain the maximum pumping rate for the extraction well <br /> EW-1. With the well constructed as a 6-inch diameter, 19 foot well with 15 feet of <br /> 0.020 screen installed within peat and fine sand and silt, the extraction rate was <br /> projected to be as high as 8 to 10 gpm. With the well as-built AGE developed a step <br /> schedule of 2 gpm, 4 gpm, 6 gpm and 8 gpm for the step draw-down test. <br /> 2. The Report provides some analytical data from the groundwater pumped during the two <br /> pumping tests,but does not provide an estimate for the mass removed during the tests.H&H <br /> Marina must include this information. <br /> Analytical data was only retrieved during the continuous pumping test. This data is <br /> 837 Shaw Road,Stockton, California 95215 <br /> Telephone(209)467-1006 FAX(209)467-1118 <br />