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Sally Barros <br />October 25, 2011 <br />Page 2 <br />samples indicated VOCs, chromium or lead concentration that would pose a current <br />threat to human health or the environment. <br />Based upon DTSC's evaluation of the PEA, the Project Site did not appear to pose a <br />threat to human health or the environment. Therefore, DTSC determined that no further <br />action is necessary at this time with respect to investigation and remediation of <br />hazardous substances at the Property. In April 2009, DTSC also abandoned two <br />groundwater monitoring wells that were installed at the Project Site. <br />If previously unidentified hazardous substances, sumps, underground tanks or any <br />other structures are encountered during excavation and grading, DTSC shall be <br />informed and they will need to be addressed as part of this project. For example, if <br />hazardous substances were encountered, the project should include: (1) an assessment <br />of air impacts and health impacts associated with the excavation activities; (2) <br />identification of any applicable local standards which may be exceeded by the <br />excavation or demolition activities, including dust levels and noise; (3) transportation <br />impacts from the removal or remedial activities; and (4) risk of public upset should be <br />there an accident at the Site. <br />If you have any questions or would like to schedule a meeting, please contact Jayantha <br />Randeni at (510) 540 -3806. Thank you in advance for your cooperation in this matter. <br />Sincerely, <br />Karen M. Toth, P.E., Unit Chief <br />Brownfields and Environmental Restoration Program <br />cc: Governor's Office of Planning and Research <br />State Clearinghouse <br />P. O. Box 3044 <br />Sacramento, California 95812 -3044 <br />Nancy Ritter <br />CEQA Tracking Center <br />Department of Toxic Substances Control <br />P.O. Box 806 <br />Sacramento, California 95812 -0806 <br />