SITE INFORMATION AND CORRESPONDENCE

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IM1 t w e f LATHROP PROPERTY WKA No. 1184.02 January 30, 1992 Page 13 i. Our ground water quality investigation, which included the installation of three ground water monitoring wells,revealed non-detectable concentrations of petroleum hydrocarbons in ground water samples obtained from the property in two consecutive calendar quarters. The wells were placed so that one monitoring well was located near the highest concentration of petroleum hydrocarbon soils contamination, and at least one other well was determined to be hydraulically downgradient with respect to the suspect former UST(s) location. We do not anticipate, therefore, that additional site characterization, monitoring or remediation is necessary. LIMITATIONS The above conclusions are based on our assessment of conditions indicated to exist as of the dates of our field activities. Our services were based on professional opinions made in accordance with current professional standards of the environmental consulting industry. This phase of investigation of the property was targeted to investigate only petroleum hydrocarbon contamination in the southwesterly portion of the property (as defined by our soil borings and wells shown on Plate 2) resulting from suspected UST(s) leakage, and was not directed toward other potential contaminants. The results of this investigation do not preclude the possibility of substances that are currently or in the future defined as hazardous being present on the property because of activities we did not identify. Additional research may result in information that would lead us to revise our conclusions. This report is applicable only to the investigated area of the property and should not be used for any other property. e Wallace ■ Kuhl & Associates, Inc. �• C, . ANTHONY•••:(,� i 4pern C7: SA Ld oA1420 ED David Von AsAnthony Saraci GFoLoc+s�,:•s Staff Geologist Director of Environmental Services ATF OF'CK-0, DVA:AS:tsl:sdm r WALLAC'•KUHL &ASSOCIATES INC. e I.