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approximately 21 feet deep with 15 The wells were installed usir,y"�ollon�sc eenuareidtlsllapptechniquys. Each well consists of two inch diameter PVC casing a until the produced water was feet of screen. Each well was developed bypumpingl essentially free of sand and slit. The well head- elevation evaiian of each new well was surveyed was readily available, the well to the nearest 0.01 foot. As no actual benchmark elevations were established with respect to an arbitrary 1e aid�onuda$um. The locationofeach is consistent with the previous KVeirfeldet permanent on-site structures. A well was measured to the nearest foot with res ect to p detailed description of well Specifications,, installation and development procedures Is presented in the Field Report, Append + ° 2.2 At the request of the EHD, soil Samples were collected from the capillary fringe zone in fringe zone is that soil located at the interface each new well boring. The capillary between unsaturated and saturated soil. These ach soil sample wases WOr tested forihyd ocarbon vaporwiit th�w�h sampler fitted with brass tubes. E storedin a cooler with ice ' a photoionlzation detector,sealed,!lo is descrled d'�ptions of each sample are presented in the ' to the laboratory for analysis. Ldho g Field Report, Appendix A. ' Eecied from all seven monitoring wells. The wells were first Groundwater samples were col purged by hand bailing then sampled With a Teflon baler. The samples were collected in laboratory prepared containers and stored on ice in a cooler pending delivery to the laboratory for analysis. A complete description of groundwater sampling procedures is presented in the Field Report, Appendix A. 2.3 ed The soil samples collected from the four new ens oring w)l borings Methodwere eac8020,1 total for benzene, toluene, ethylbenzene and y Method 8015 (modified) and for total petroleum hydrocarbons as gasoline (TPH-G) by lead by EPA Method 7421 graphite furnace atomic absorption. Groundwater samples were analyzed for BTEX by EFA Method fi0 laboratoryhe and nder ch in-of- Method 8015 (modified). All samples were transport ed to tAnalytics D ision laboratory custody. All analyses were performed which is certified by the State of California Department of Health Services forterequired analyses. 2.4 ---- _ -- - --All-field_wok, -including monitoring well installation, soil sampling and groundwater .. sampling was performed under the supervision of a-Regisiered.Caldornia geologist. Y - 5 -