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w <br /> Department of Toxic Substances Control <br /> Edwin F. Lowry, Director o <br /> 8800 Cal Center Drive <br /> Winston H. Hickox Sacramento, California 95826-3200 Gray Davis <br /> Agency Secretary Governor <br /> California Environmental <br /> Protection Agency <br /> MEMORANDA <br /> TO: Doug O'Neal, Project Manager <br /> Hazardous Substances Scientist <br /> (916) 255-3593 <br /> VIA: John Hart, P.E. Chie <br /> Site Mitigation Prog , Engi eering Services Unit <br /> FROM: Jesus I. Sotelo, P.E. gusuy { ` <br /> �:�: icr{G,"v"sg3dis13 <br /> Hazardous Substances Engineer I I• gR� <br /> Site Mitigation Program, Engineering Services Unit <br /> DATE: May 14, 2003 <br /> SUBJECT: REVIEW OF TREATMENT SYSTEM PROVE-OUT REP RT, KNEY,, <br /> KEARNEY-KPF FACILITY, STOCKTON, CA. <br /> You requested that I review the Treatment System Prove-Out Report dated April 3, <br /> 2003 for Kearney-KPF facility in Stockton CA. The Treatment system at Kearney-KPF <br /> consists of groundwater extraction (wells and appurtenances), UV/OX reactors <br /> (Hydrogen Peroxide.and Ultra Violet light treatment) operated in series, and air stripping <br /> of groundwater followed by granulated activated carbon polishing. The final step is for <br /> treated effluent to be either re-injected or sent to the Retention/Infiltration Basin. <br /> Specific Comments <br /> 1. Based upon the Groundwater Remedial Action Plan report dated August 2000, <br /> Appendix, Section 1.2 Electrical Energy per Order the UV/OX system is <br /> undersized based upon the conditions in which treatment system was operated <br /> during the third prove out run. If the flow rate as stated in the Prove-Out report <br /> Table 3 was 153 g.p.m. and the initial concentration was 170 µg/L. for 1,4 <br /> Dioxane the required power would be 67.3 kW. The current system can only <br /> produce 60 kW power when the reactors are in series, thus limiting the <br /> destruction capacity of 1,4 Dioxane. <br /> The energy challenge facing California is real. Every Californian needs to take immediate action to reduce energy consumption. For <br /> a list of simple ways you can reduce demand and cut your energy costs, see our Web-site at www.dtsc.ca.gov. <br /> ® Printed on Recycled Paper <br />