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-.."�., I <br /> Ar }'t <br /> o �01t/� DECISION <br /> FACT SHEET <br /> MIMI <br /> NM <br /> CLEANUP DECISION FACT SHE iyM� T CiONT.AMINATED SOIL SITES AT <br /> NAVAL COM 10M `' 0 QN (NCS) STOCKTON <br /> �00.RON <br /> aha <br /> The Navy has identified soil at four sites a��£�Si5" Main the pesticide DDT at levels high enough.to <br /> require cleanup. The four sites,called Si are described on pages 3 and 5 of this fact <br /> �q '� ss called solvent <br /> sheet. Sites 4,5G,and 5H will be cleaned ubyMIN I � c�� �dY excavated using a process <br /> i� <br /> extraction and Site 1AS-9 will be addressyr �? l ' vwg the road�surface if the ecological risk <br /> I <br /> assessment shows this method to be roteveciffionnierrt: if the ecological risk assessment determines <br /> that capping and paving Site iAS-9 would,"t€ �tec� 'env nt,excavation and solvent extraction would <br /> �`. 'Le S fid°,.� IN kdl <br /> . <br /> be the recommended alternative for Site IaMRn <br /> 'M NOMM <br /> j, <br /> The cleanup methods were developed by.t1�e� � n avy;in cooperation with the California Envi- <br /> �� i �I <br /> ronmental Protection Agency(Cal EPA)Depanenol�o �bstances Control(DTSC)and Central Valley <br /> Regional Water Quality Control Board��B � 4P action will be taken in accordance with a <br /> pending record of decision/remedial actitiin� ait3 ? Y the Navy,DTSC,and RWQCB. A ROD/RAP <br /> DTSC <br /> is a legally binding agreement that states howJasie� y�daite will be cleaned ug. The Navy, ,and <br /> RWQCB.are-preparing a ROD/RAP for 1C Stccktoxi s `a3rdsediments that contain pesticides or PCBs. The. <br /> ROD/RAF for pesticides and PCBs can be�applieRS #iton sites that <br /> exhibit the following characteris- <br /> tics: � � <br /> ' . <br /> `� � ewitli a hydrophobic <br /> esticide or PCBs. The <br /> Soil,sediment,or dust at tieasiteX-rAlP <br /> U.- <br /> term"hydrophobic"matlIMO�ncheiCadolike water land will cling to soil or dust. <br /> The soil,sediment,or dust�»y ertitaothR�ohiaminants,but the pesticide or PCB is the <br /> chemical that poses,the iriosbs... ...health 6r the environment. <br /> 'ir I i, I <br /> The purpose of this fact sheet is to seek comnme4n„ gArtuiity on the appropriateness of Sites 4, SG,SH, <br /> aFP"` <br /> and IAS-9 four cleanup under the ROD �atidP 7 s. The community can comment on the <br /> tea' I k <br /> proposed cleanup during the 30-day com>rte ipd atpuc m eting;being held to answer questions and <br /> receive comments. The public comment perlod�aaid�ul li xnee#i g are described on page 2: <br /> The information included in this decision _NMactslas eilsafacility-wid si#e investigation and a feasibility <br /> pp <br /> study conducted for NCS Stockton sites noil:. The site investigation identified,among <br /> other thins sites with levels of DDT hi study+=environment. <br /> ility study examined the possible <br /> methods for cleaning up the DDT contaminatatott�rotcthuraan healThis fact sheet <br /> x V a y'c' zfa'�- `�F '�'a� IA- <br /> 1 q <br /> does not replace the site investigation repcnf6kh asibillity§, dy report;it is intended as a companion docu- <br /> E � } 3� tea. R <br /> a� s S, <br /> ment. The public is encouraged to review the sitemuestigatiai�'report the feasibility study,and the proposed <br /> 0 a a; <br /> plan which are available at the informatiod rp�osrttiry see gager <br /> *Words in bold are defined in the glossasY <br /> � a� E <br />