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itrogen, phosphorous and potassium (NPK) crti izers in the surface soils should not be an environmental concern since the property has not been in agricultural production for many years. PUBLIC ENVIRONMENTAL RECORD/DATA SOURCES Static groundwater is found approximately 50 feet under the property as illustrated on the attached 1999 Lines of Equal Depth to Groundwater map. From the 1999 Lines of Equal Elevation of Groundwater,the groundwater directional flow is toward the east. A groundwater depth of 50 feet can be considered a medium groundwater elevation which can be impacted from serious point source releases and to a much lesser degree from agrichemicals such as pesticides and herbicides, or nitrogen in the form of nitrates. This degree of impact from agrichemicals is particularly mitigated when there are intervening layers of clay soil down to the static water table depth. Last year, County, State and Federal environmental documents were reviewed for a project on Thirteenth Street, approximately 2,000 feet northwest of the subject property (See Report Number SSCR-07.01). These documents were obtained from VISTA Environmental Information Solutions and were reviewed for this Michael Avenue project. When VISTA was contacted for an update to these environmental documents, I learned VISTA had been sold to Environmental Data Resources (EDR). On October 10, 2002, I spoke with Christine Dechane of EDR about the environmental records for the previous project on Thirteenth Street. Based upon a review of the existing documents, there have been no substantial changes in the contaminated sites listed since August 6, 2001. No contaminated sites were found to be upgradient in the proximity of the subject site, based upon the apparent groundwater directional flow. Potential environmental impact to the subject site from other past, present or future facilities within a one mile radius is unknown at this time. Two sources of information which attempt to document and define on-site and surrounding past land use were also used. The first is the use of aerial photographs. Aerial photographs of the subject area from 1970 through 1977 found on USDA Soil Maps reveal surrounding properties to consist of the existing residential structures. It cannot be determined if a structure was on the property during this time frame due to the density of residential units. The USDA Soil Map shows the subject property consists of a Jacktone clay complex(#180) soil type. Typically, this soil type is 50%Jacktone clay. The surface layer is a dark gray clay and clay loam, about 25 inches thick. The subsoil,to a depth of 64 inches, can be a brown clay loam with a cemented hardpan. The second source of information can be found on USGS maps. The 1968 map (updated in 1994) for this area is also indeterminable for an indication of buildings on the subject property. However,it appears that there is a"gap" between residential structures where the subject property is located,as denoted on the attached USGS map. Since the subject property has not been in agricultural production, an evaluation of environmental fate data for agrichemical residues as a nonpoint source of potential contamination was not done. The science of pesticide residues in soil, air, surface water and groundwater is Page -3- Che-snq consulting