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Petrig Seed Company Monitoring Well Installation ' Page 2 r The soil from each sampled interval was logged by a California State Registered Geologist ' using the Unified Soil Classification System The color, texture, moisture, plasticity (if applicable), consistency of the earth materials, pertinent soil or bedrock characteristics, and any evidence of contamination was noted All water-bearing zones and the depths at ' which they were encountered was noted on the log Reference samples were taken from interval and stored in a chip tray ' A sample for analysis was collected from each sampled interval These samples were immediately sealed in their liners using aluminum foil-lined plastic caps that were taped in place with duct tape All sampling equipment was washed with TSP solution and rinsed ' with potable water between each sample to prevent cross contamination The samples were immediately placed in an ice chest containing both ice and blue ice The ' samples were logged on a chain of custody and transported by Greyhound bus lines to Geo-Monitor, Inc , a California State certified laboratory, for analysis ' The boring into the saturated zone was drilled to eleven feet beneath the top of the aquifer It was then completed as a monitoring well and backfilled with concrete grout, after a bentonite seal had been placed 4.2 Well Construction All materials used in the well construction were thoroughly cleaned prior to introduction into the boring A two inch diameter PVC well casing with end cap and 0 02" factory ' perforations was placed in the boring The casing and end cap was threaded and no PVC cement was used A filter pack, consisting of#3 Monterey sand, extended one foot above the perforated casing Then, a bentonite seal two and a half feet thick was placed in the annular space above the filter pack followed by a cement-bentonite grout to the surface 4.3 Well Development and Sampling Thew well 1 was developed until the well water appeared clear of sediment The well was then allowed to stabilize for twenty four hours prior to sampling The samples were refrigerated immediately and logged on a chain of custody for transportation by Greyhound bus lines to Geo-Monitor Labs, Inc , a California State certified laboratory, for analysis r A travel blank provided by the laboratory accompanied the sample vials from the time they were picked up from the lab to the time they are delivered to the lab The travel blank is