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California Rilional Water Quality Antrol Board <br /> (\- Central Valley Region <br /> v Robert Schneider,Chair M. <br /> Winston H.Hickox Gray Davis <br /> Secretaryfor Sacramento Main Office Governor <br /> Environmental Internet Address: http://w .sw b.ca.gov/mgcb5 <br /> Protection 3443 Routier Road,Suite A,Sacramento,California 95827-3003 <br /> Phone(916)255-3000•FAX(916)255-3015 <br /> 23 August 2001 Gh Qj Wd a gnu <br /> H. Derrick Peterson, Esq. <br /> 3709 Toro Canyon Road <br /> Austin TX 78746 <br /> SUMMARY OF 21 AUGUST 2001 SITE WALK, KEARNEY EFF, STOCKTON, <br /> SAN JOAQUIN COUNTY <br /> Thank you for meeting with me on 21 August 2001, along with representatives of Dudek &Associates, <br /> Inc. (Dudek) at the Kearney-KPF facility at 1624 East Alpine Avenue in Stockton. During the site walk, <br /> I observed the treatment system,piping to and from the treatment system, former Ponds 1 & 2, the <br /> retention basin, injection well INJ-1, and several groundwater monitoring wells. The following is a <br /> summary of our discussions during the site walk: <br /> 1. Peter Quinlan of Dudek discussed the former operations of the facility and how the contaminants <br /> from those processes reached the subsurface in the areas known as Former Ponds 1 & 2, and the <br /> remedial activities performed in these areas. <br /> 2. The treatment system consisted of piping from extraction wells to the equipment pad where <br /> hydrogen peroxide is injected into the extracted groundwater, then pumped through ultraviolet <br /> light vessels, into the air stripping tower, then through two granular activated carbon containers, <br /> and then pumped out to INJ-1 or the retention basin. I observed the efforts to reduce the amount <br /> of hydrogen peroxide being injected into the groundwater to meet the designed levels needed to <br /> break down the 1,4-dioxane. <br /> 3. Dudek has not completed the piping to the proposed shallow injection wells. Prior to injection of <br /> treated groundwater into wells other than INJ-1, Dudek must perform injection capacity tests for <br /> the wells and report the findings to Board staff. <br /> As discussed with Mr. Quinlan, Dudek will provide a report discussing the results of the treatment <br /> performance and prove-out three weeks after the conclusion of the prove-out activities, tentatively by <br /> 14 September 2001. Dudek will provide addendums to the Report of Waste Discharge and the <br /> 11 August 2000.Remedial Action Plan to accurately depict the groundwater treatment system from <br /> extraction well to injection well with revised concentrations and flow rates. These addendums are <br /> required before Board staff can approve full scale operation. If you have any questions, you may contact <br /> me at(916)255-3119 or by email at lewisdna,rb5s.swrcb.ca.gov. <br /> D. - X <br /> DEVRA LEWIS <br /> Environmental Specialist H <br /> cc: Mr. Mike hifurna, San Joaquin County Health Department, Stockton <br /> Mr. Doug O'Neal, Department of Toxic Substances Control, Sacramento <br /> Mr. Peter Quinlan, Dudek&Associates, Encinitas, California <br /> California Environmental Protection Agency <br /> 0 Recycled Paper <br /> The energy challenge facing California is real. Every Californian needs to take immediate action to reduce energy consumption. <br /> For a list of simple vrays you can reduce demand and cut your energy costs,see our Web-site at http://w .sw b.ca.gov/mgcb5 <br />