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' GEOCHECKP - PHYSICAL SETTING SOURCE SUMMARY ' Site-Specific Hydrogeological Data' Search Radius 2 0 miles Status Notfound AQUI FLAW® Search Radius 2 000 Miles EDR has developed the AQUIFLOW Information System to provide data on the general direction of groundwater 1 flow at specific points EDR has reviewed reports submitted by environmental professionals to regulatory authorities at select sites and has extracted the date of the report,groundwater flow direction as determined hydrogeologically,and the depth to water table LOCATION GENERAL DIRECTION ' MAP ID FROM TP GROUNDWATER FLOW Not Reported ' GROUNDWATER FLOW VELOCITY INFORMATION Groundwater flow velocity information for a particular site is best determined by a qualified environmental professional ' using site specific geologic and soil strata data If such data are not reasonably ascertainable,it may be necessary to rely on other sources of information, including geologic age identification, rock stratigraphic unit and soil characteristics data collected on nearby properties and regional soil information In general, contaminant plumes move more quickly through sandy-gravelly types of soils than silty-clayey types of sods GEOLOGIC INFORMATION IN GENERAL AREA OF TARGET PROPERTY ' Geologic information can be used by the environmental professional in forming an opinion about the relative speed at which contaminant migration may be occurring ROCK STRATIGRAPHIC UNIT GEOLOGIC AGE IDENTIFICATION 1 Era Cenozoic Category Stratifed Sequence System Quaternary Series Quaternary Code Q (decoded above as Era System&Senes) Geologic Age and Rock Stratigraphic Unit Source P G Schruben, R E Arndt and W J Bawiec, Geology of the Conterminous U S at 12,500,000 Scale-a digital representation of the 1974 P B King and H M Berkman Map, USGS Digital Data Series DDS- 11 (1994) ' DOMINANT SOIL COMPOSITION IN GENERAL AREA OF TARGET PROPERTY The U S Department of Agriculture's(USDA) Soil Conservation Service(SCS)leads the National Cooperative Sod Survey(NCSS)and is responsible for collecting,storing, maintaining and distributing soil survey information for privately owned lands in the United States A sod map in a sod survey is a representation of soil patterns in a landscape Soil maps for STATSGO are compiled by generalizing more detailed (SSURGO)sod survey maps The following information is based on Soil Conservation Service STATSGO data m1S96 Site—apeUflc hydropeologlcal data gathered by CERCLIS Alerts Inc BalnbrWga island WA All dghis reserved All of the Intormeaon and opininne Presented are those of the cited EPA mpod(s}which were completed under a Comprehensbe Envlmnmentef Raspanse Compensehon and Llahlllly Information System(CERCLIS)imesHpatl- TC0961230 3s Page A-3