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A ���� <br /> Formal Closure Request,Site Code 1203 <br /> Stockton Regional Wastewater Treatment Facility <br /> 2500 W Navy Drive,Stockton,CA <br /> October 6, 1992 <br /> Page 2 <br /> addition, the surface above and surrounding this area is covered by impermeable asphalt and is <br /> graded to prevent ponding water This greatly limits infiltration of precipitation <br /> Based upon the limited areal extent of residual diesel hydrocarbons in tight soils, the low level <br /> of impaction, and the absence of contaminants in groundwater, residual hydrocarbons in the soil <br /> do not appear to constitute a threat to public health or the waters of the state <br /> RESNA, on behalf of the City of Stockton, requests case closure It is the intention of the City <br /> to discontinue monitoring and sampling at the site, and to apply for monitoring well <br /> abandonment The City anticipates PHS/EHD written concurrence for the closure of this site <br /> If you have any questions or comments please contact John Lane at your earliest possible <br /> convenience <br /> Respectfully, <br /> RESNA Industries Inc <br /> n P Lane <br /> Project Geologist <br /> Gregory P Stahl <br /> CA Registered Geologist No 5023 <br /> TJL/ggk <br /> PC Mr Jim Escobar, City of Stockton <br /> Ms Elizabeth Thayer, CRWQCB <br /> QRTLYRPT1LA090992 FNL <br />