Laserfiche WebLink
Dana G. Parry - 3 - 15 March 2019 <br />are useful to show and document the recent historical features and compare to updated <br />figures. Site features have changed significantly since the date of the site photo used for <br />Figures 2 and 3 and these figures do not show the newly paved areas, the fence line, <br />and other improvements. Please include Figures 4 and 5 that shows the Site Plan as <br />well as the Excavation and Waste Removal Site Plan with current site features in the <br />Verification Report. <br />Regional Water Board Conclusion <br />Staff of the Regional Water Board conditionally concur with this Work Plan proposal under the <br />condition that the above -stated Regional Water Board comment is satisfactorily addressed in <br />writing prior to commencement of the proposed Work Plan. Please notify Regional Water Board <br />staff a minimum of 72 hours before initiating field work to facilitate staff inspection of the work. <br />Additionally, based on available information, Staff request investigation of the following areas of <br />concern to be submitted under separate Work Plan: <br />The remaining wastes located in the southwest corner of Parcel A as noted in the Work <br />Plan. This area may have recently been partially or completely covered in new asphalt <br />pavement which should be indicated in the updated figures requested in the above - <br />stated Regional Water Board comment 4. This area has also been described as the <br />hummocky area North of the Cogeneration Plant (in the vicinity of trench T29) that <br />requires compilation and evaluation of existing trench logs and boring data and <br />potentially additional investigative measures to verify the presence or absence of <br />pollution. <br />2.. The Former Transformer Station Area also requires compilation and evaluation of <br />existing trench logs and boring data and additional investigative measures to verify the <br />presence or absence of pollution including polychlorinated biphenyls. <br />If you have any questions regarding this letter or project, you may contact me at (916)464-4825 <br />or by email at ann.palmer(a_waterboards.ca.clov. . <br />Sincerely, -- <br />.y✓ 9 � <br />Ann M. Palmer <br />Water Resource Control Engineer <br />Site Cleanup Section, <br />Attachment: <br />Work Plan Addendum - Excavation and Material Management Plan for Parcel A <br />(APN198-120-08) of SWIS 39 -CR -00-0022, Former Pilkington North America -500 E <br />Louise Ave; Lathrop, CA, 22 January 2019, SJEHD letter <br />cc: Joe Brusca, Brusca & Associates, Inc (email) <br />Brian Millman, AGE, (email) <br />Robert McCieiion, San Joaquin County Environmental Health Department (email) <br />Glenn Young, CalRecycle (email) <br />Sabra Ambrose, CalRecycle (email) <br />