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001c--3 development, groundwater samples will be collected and analyzed for pH and heavy metals. The heavy metals include copper, nickel, tin and lead. We do not propose to do any analysis for priority pollutants because the manufacturing process suspected of being the contamination source does not use these materials. 2.2 Phase II A. The scope of the second phase of the sampling plan is contingent upon the results of the first phase. If Phase I establishes that contamination has not moved offsite, we propose to advance a minimum of P � 8 borings through the floor in the interior of the building. The approximate locations of these borings are shown on Figure 3. Their precise location will be determined in the field and will depend upon the location of reinforcing steel in the floor and underlying utility conduits. The borings will be advanced to three feet below static groundwater and fitted with monitoring wells. These wells are to be considered temporary and will be abandoned when no longer required. Being located inside the building, the monitoring wells will not require the use of protective Christy boxes. Soil samples will be collected at three foot intervals by using a Standard Penetration Sampler. Soil samples will be analyzed for pH, copper, lead, nickel and tin. We may recommend the installation of�an additional two wells if conditions at the annex require it. This decision will be made in the field. The exact location of the wells will be determined at that time. B. If the Phase I results indicate that contamination has moved off a' site, then Phase II of the sampling plan will be modified to address that fact. The modification to the Phase II sampling plan would include �r`✓y advancement of a minimum of 4 borings inside the structure and the placement of at least four additional monitoring wells downgradient from the sources and further away than the Phase I monitoring wells. The approximate locations of these borings are shown in Figure 4. All