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L <br /> November 23, 2005 <br /> NOA Project Number: E05141A <br /> L 3.4 Past Off-Site Sources of Contamination <br /> F No above-or bel w-ground potential or known sources of contamination to the subject property were <br /> identified fro ast uses of surrounding properties, except for the following: <br /> • Surrounding properties have been used for agriculture in the past;agricultural chemicals may <br /> ►. have been applied to these properties. <br /> 3.5 Current Off-Site Sources of Contamination <br /> No a ve-or below-gt d potential or known sources of contamination to the subject property were <br /> identified fro ent uses of the surrounding properties, except for the following: <br /> • Surrounding properties are used for agriculture;agricultural chemicals may be applied to these <br /> Lproperties. <br /> • Surrounding properties utilize private wells and septic systems. <br /> L -EVALUiQTION OF IDENTIFIED CONTAMINATION SOURCES <br /> i <br /> Q.Nopemvidence w found to indicate that the agricultural chemicals used on the property were applied <br /> pro y <br /> I Confinement of animals within small areas may lead to an accumulation of nitrogen compounds within <br /> 1. soil,which then have the potential to leach to groundwater. <br /> If water wells are not properly operated and maintained,they can serve as contamination conduits to <br /> groundwater. Septic systems may be used for inappropriate disposal of hazardous substances. In this <br /> case, there is no evidence to suggest that wells or septic systems may be contaminant pathways on the <br /> subject property or vicinity. <br /> 4 <br /> 5.0 CONCLUSIONS AND RECOMMENDATIONS <br /> ` Given the historical uses of agricultural chemicals on the subject property, meaningful conclusions <br /> regarding the presence or extent of such material cannot be determined without soil sampling and <br /> analysis. Such sampling and analysis is especially warranted in the conversion of agricultural land into <br /> ►. residential use. <br /> Should the current residents of the subject property be interested in determining the quality of their <br /> drinking water, EHD should be contacted for direction regarding the potential for impacts to <br /> groundwater from the agricultural history of the property and vicinity. <br /> Y <br /> L <br /> 11 <br /> L <br /> L <br />