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F1 April 21, 2006 NOA Project Number: E06022A 3.4 Past Off-Site Sources of Contamination Dd bove-or below-ground potential or known sources of contamination to the subject property were ti from past uses of surrounding properties, except for the following: Agricultural chemicals may have been applied to the surrounding properties. 3.5 Current Off-Site Sources of Contamination No above-or below-ground potential or known sources of contamination to the subject property were No from current uses of the surrounding properties, except for the following: • Agricultural chemicals are most likely applied to surrounding properties. r • Surrounding properties most likely utilize private wells and septic systems. 1 4.0 EVALUATION OF IDENTIFIED CONTAMINATION SOURCES F1Agricultural chemical residues may remain on the property. No evidence was found, however, to indicate that the chemicals were applied inappropriately. Contamination may exist in.the vicinity of the underground storage tank. The vertical extent of contamination from the above-ground storage tank and leaking drums of oil could 'i not be ascertained by visual inspection alone. The rusting metal located on the property may leach metals into the surface soils at the site. �-• The number of old tires present on the property_represents a potential environmental concern. If water wells are not properly operated and maintained, they can serve as contamination conduits to groundwater. Septic systems maybe used for inappropriate disposal of hazardous substances. In this case, other than the close proximity of the leaking drum to one agricultural well, there is no evidence to suggest thatwells or septic systems may be contaminant pathways on the subject property or vicinity. 5.0 CONCLUSIONS AND RECOMMENDATIONS Given the historical uses of agricultural chemicals and petroleum products on the subject property, meaningful conclusions regarding the presence or extent of such material cannot be determined without soil sampling and analysis. Such sampling and analysis is especially warranted in the conversion of agricultural land into residential use. Depending on proposed locations of future residences, targeted 14 �k 4!