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CONDOR EARTH TECHNOLOGIES,INC. <br /> 188 Frank West Circle,Suite [ <br /> Stockton,CA 95206 <br /> Phone 209.234.0518 <br /> Fax 209.234.0538 <br /> CONDORwww.condorearth.com <br /> March 9,2017 <br /> Shahid Mahmood <br /> Department of Toxic Substances Control <br /> San Joaquin Branch <br /> Brownfields and Environmental Restoration Program <br /> 8800 Cal Center Drive <br /> Sacramento, CA 95826 <br /> Subject: Response to Comments on the Draft Operations and Maintenance Plan for Neighborhood C, <br /> Great Valley Parkway,Mountain House, California <br /> Mountain House Developers,LLC <br /> Condor Project No. 7319C,DTSC Site Code 101854 <br /> Dear Mr. Mahmood: <br /> This letter provides response to your comments on the above-referenced report dated January 2017 for <br /> Neighborhood C (Great Valley Parkway), Mountain House, California. The comments presented in your <br /> Comments Letter dated February 14, 2017 have been addressed below and responses included in the <br /> revised and final Operations and Maintenance Plan (Plan) dated March 2017 which accompanies this <br /> letter. <br /> Response to Comments <br /> Comment Comment Response <br /> No. <br /> General Comment. The text in the Plan uses the <br /> phrase final remediation system"cap",or <br /> variations of this description,to describe the top <br /> layer of the encapsulation area. The word cap <br /> should be replaced with"cover"'throughout the "Cap"has been replaced with"cover"throughout <br /> Plan. The word"cap"in the regulation of <br /> Comment the Plan. Six instances were changed.In addition, <br /> hazardous substances universe is typically <br /> 1 two instances of the word"capping"were <br /> associated with the prescribed construction of replaced with"encapsulation"in Section 1.1. <br /> Resource Conservation and Recovery Act <br /> (RCRA)caps for hazardous waste landfills.To <br /> avoid confusion,ESPO recommends use of the <br /> term"cover"when referring to encapsulation <br /> cells that do not fully meet RCRA standards. <br /> Section 3.1 Remediation System Description. <br /> Comment The term"Remediation System"should be Section 3.1,Remediation System Description. <br /> 2 defined in this section.The term Remediation Additional language was added to the beginning <br /> System is used throughout the Plan but does not of Section 3.1 for clarification. <br /> appear to be properly defined. <br />