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ARCADISSOP:Hydropunch®Groundwater Sampling Procedures 4 Rev.#:01 Rev Date:March 24,2004 1 • Field logbook. Note:The polyethylene tubing should fit tightly inside of the silicon tubing.Therefore, the outer diameter of the polyethylene tubing should be approximately equal to the inner diameter of the silicon tubing.The silicon tubing should be the appropriate size ' for the pump head on the peristaltic pump. IV. Cautions ' Sampling must be discontinued during heavy rain if there is a potential that rain water could contaminate grab groundwater samples. ' Indelible ink pens must be used to complete sample labels. Samples containers should be packed on ice and stored in a cool,shaded place to ' maintain a sample temperature of approximately 40C. Ice must be double bagged to prevent leakage. Sample containers should be stored inside sealable plastic bags to ' prevent cross contamination should a container break during transit. Packing tape with volatile adhesives should not be used to seal samples requiring volatile organic analysis to avoid potential contamination. 1 V. Health and Safety Considerations If lightning is present,discontinue sampling until 30 minutes after the last occurrence ' of lightning. VI. Procedure ' The following section describes the procedures to collect a Hydropunch®grab groundwater sample. 1. Identify site and Hydropunch®sample location in field notebook along with date, time, personnel,and weather conditions using indelible ink. ' 2. Use safety equipment as specified in the Health and Safety Plan. 3. Place plastic sheeting on the ground adjacent to the Hydropunch®sample point. I 4. Advance a soil boring to the desired depth using the direct-push technique as ' described in the Soil Boring Installation, Soil Sampling, and Borehole Abandonment SOP. CAI E4199 HydvpRK1+6'Rndw�'.e'S�nWk'9