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1.6 and 0.76 ppb,respectively. Aside from these common fuel constituents, a number of solvents <br /> have been detected in water samples from MW-1, MW-2, and MW-4. The solvents include <br /> chloroethane,dichloroethene(DCE),and trichloroethene(TCE). Concentration of these compounds <br /> range from 0.86 to 730 ppb. As evident on Table 2, the California Maximum Contaminant Level <br /> (MCL) for DCE is exceeded in Wells MWA, MW-2, and MW-4. <br /> CONCLUSIONS <br /> The purpose of this current investigation has been to gather additional information regarding the <br /> horizontal and vertical extent of contaminants detected during earlier work at the site. Both soil and <br /> groundwater testing have revealed no detectable gasoline or diesel in any of the monitor wells; this <br /> indicates that a"zero line"for these compounds has been determined. However,chlorinated solvents <br /> are detectable in three of the four wells. MW-3 is the only well which tests "clean" for all target <br /> compounds, indicating a zero line has been established to the south only,for both fuels and solvents. <br /> Once you have had a chance to complete your review of these findings,please contact us with your <br /> comments so we can advise our client. <br /> LIMITATIONS <br /> Our work has been performed in accordance with the care and skill normally exercised by similar <br /> professionals currently practicing in the same general locality under similar conditions. Our <br /> conclusions are our opinions based upon our observations and the chemical data. No warranty <br /> regarding our opinions or conclusions are expressed or implied. <br /> The following are attached and complete this workplan: <br /> Table 1, Chemical Data Summary - Soil Samples <br /> Table 2, Chemical Data Summary - Groundwater Samples <br /> Plate 1, Vicinity Map <br /> Plate 2, Site Plan <br /> Plates 3 - 6, Monitor Well Boring Logs <br /> Appendix, -Chemical Laboratory Reports <br /> -Summary Data Table from 1999 Investigation <br /> If you have any questions regarding this report, please contact us. <br /> Sincerely, £Nv i RONif'r @%V ESSIpNq <br /> �� O •.••G:E• ., <br /> Ramcon w P G E R zQ +s ��i. /� .• <br /> � �y ,�� ti� ^�,� tik, ;�P FC•• F� <br /> CV <br /> NO. • y� <br /> • ,,� rr <br /> 1621rri <br /> MJ((e Geregh * No. 47308 <br /> Registered Civil Engineer No. 47308 Expires: : Exp. %z 3i oma <br /> Registered Environmental Assessor No. 1621 <br /> OP CAO <br /> sfAlfQ�, 11�O���Q <br /> (1)Addressee <br /> (1)Jack Anderson,Anderson Farms,P.O.Box 1410,Davis,CA 95617 <br /> (1) Calfee&Young via Facsimile(530)666-31 <br /> Ramcon H:\WPDATA\1303-2-Anderson\REPORTS\SumReport.wpd Page 4 <br />