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55 _ <br /> OF CALIFORNIA- Environmental Protection Agency PETE WILSON, Governor <br /> ;��07`2- N1A REGIONAL WATER QUALITY-CONTROL BOARD - _ ,� <br /> .-#ENTRAL VALLEY REGION ENVIRUNKEN' AL 11EALPfl <br /> 5443 Routier Road, Suite A P ER t g' ^" j,ar,� a <br /> Sacramento, CA 95827-3098 <br /> PHONE: (916) 255-3000 @@. C * pip rj <br /> FAX: (916)'255-3015 14, i E.B " ,9 I"M 2: 09 <br /> 1 February` <br /> 1994 .. - <br /> 'Mr. Nick Nickerson <br /> Unocal Corporation <br /> 2000 Crow.Canyon Place, Suite 450 <br /> _-- San Ramon, CA- 94583 <br /> REVIEW OF WORKPLAN: PORT OF STOCKTON FACILITY <br /> Thank you for your timely submittal of the Soil Sampling Plan III for the former <br /> PureGro/PM Ag Products facility on West Washington Street in the Port of.Stockton., fhave. . <br /> reviewed the soil sampling portion of the workplan, and approve it as written. <br /> The workplan also contains a proposal for quarterly monitoring of the four new wells-. This <br /> plan is also approved with the addition of the following: <br /> The water samplesshould be.analyzed.for.TDS andorganic nitrogen in.addition to the <br /> minerals and common ions listed in the workplan: <br /> In order to get a better understanding of the groundwater gradient at the site, the <br /> influence of nearby wells must be understood. The Port of Stockton should be <br /> contacted for information regarding their production and irrigation wells in the <br /> vicinity of the site. It should be noted whether these wells are pumping at the time <br /> that depth-to-water information is obtained from the monitoring wells. Please contact <br /> me if you are unable to obtain this information from the Port. <br /> If you have any questions, I can be reached at (916) 255-3104. <br /> WENDY WYELS <br /> Ag Regulatory Unit <br /> cc: Mr. John Rapp, Sierra Pacific Groundwater Consultants, El Dorado Hills <br /> Mr. Mike Infurna, San Joaquin County Environmental Health, Stockton <br /> Ms. Charlene Wall, Port of Stockton,Stockton <br /> Mr. Dale Matthews, PM Ag Products, Stockton <br /> Mr. Jack Holm, Cargill Molasses, Stockton <br />