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CFH. V F. <br /> �< < JAN 16 2013 <br /> tENV1RONMENT,', <br /> PERf�iIT/SEI=t .� _ . <br /> Department of Toxic Substances Control <br /> Matthew Rodriquez Deborah 0. Raphael, Director Edmund G.Brown Jr. <br /> Secretary for 8800 Cal Center Drive Governor <br /> Environmental Protection Sacramento, California 95826-3200 <br /> January 15, 2013 <br /> Mr. Andrew Keller <br /> Environmental Manager <br /> The Learner Company <br /> 222 N. Poinsettia Avenue <br /> Manhattan Beach, California 90266 <br /> OPERATIONS AND MAINTENANCE PLAN COMMENTS, THE LEARNER COMPANY <br /> (SITE CODE 101994), STOCKTON, CALIFORNIA <br /> Dear Mr. Keller: <br /> The Department of Toxic Substances Control (DTSC) has reviewed the Operations and <br /> Maintenance Plan (O&M Plan) dated November 7, 2012. The O&M Plan was submitted <br /> by EARTHCON on behalf of The Learner Company. The O&M Plan addresses DTSC's <br /> previous comments provided in a letter dated September 5, 2012. DTSC conditionally <br /> approves the O&M Plan based upon the comment below: <br /> COMMENTS <br /> 1. If, after DTSC's review of the completion of the Fourth Quarter 2013 <br /> Groundwater Monitoring Report and trend analysis, it is determined that an <br /> Operation and Maintenance Agreement is required for groundwater <br /> monitoring, then a review and approval of the O&M Plan Cost Estimate and <br /> supporting Financial Assurance Mechanism (Comments 3 and 4 from the <br /> September 5, 2012 letter) will be required. <br /> If you have any questions, please contact me at (916) 255-3744 or by electronic mail at <br /> jlilegdtsc.ca.gov. <br /> Sincerely, <br /> C� <br /> Jerry', ile <br /> Project Manager <br /> San Joaquin and Legacy Landfills Office <br /> Brownfields and Environmental Restoration Program <br /> cc: See next page. <br /> Drin4crl nn laarvrla`i Panor <br />