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11 May 2009 <br /> AGE-NC Project No. 09-1692 <br /> Page 5 of 6 <br /> sample retrieval, a selected stainless steel sleeve or a selected portion of the macro-core acetate <br /> sleeve will be covered with Teflon sheets, capped and sealed with tape.Each sample sleeve will be <br /> labeledwith the boring designation,depth,time,date and sampler's initials.Appropriately sealed and <br /> labeled samples will be placed in a chilled container under ice and transported under chain-of- <br /> custody procedure to a CDPH-certified laboratory for analysis of the chemicals listed in Section 3.2. <br /> Soils encountered in the borings will be visually classified by an AGE representative in accordance <br /> with the Unified Soil Classification System (USCS). Additionally, soil samples will be field- <br /> screened for the presence of volatile organic compounds using an organic vapor meter (OVM), <br /> equipped with photo-ionization detector(PID)(Thermo Environmental 580, 10.0eV[or equivalent] <br /> and calibrated to isobutylene). Soil samples withdrawn from the site will also be screened using a <br /> handheld flame ionization detector. <br /> 4.3. GRAB GROUND WATER SAMPLING <br /> For the collection of the grab ground water samples, soil borings will be advanced to the top of the <br /> ground water table as identified by collection of a saturated soil sample.Once ground water has been <br /> encountered, a Geoprobe push-driven water sampling device will be advanced four feet into the <br /> water-bearing zone. The grab ground water samples will be collected using a Geoprobe water <br /> sampling assembly fitted with a pre-cleaned,one-inch diameter 0.01-slotted temporary well screen. <br /> Each ground water sample will be extracted by using dedicated disposable PVC tubing through the <br /> hollow center of the push rods into the screen section. Samples for the analytes listed in Section 3.2. <br /> will be collected into appropriate containers(40-milliliter volatile organic analysis[VOA]vials and <br /> 1-liter amber containers). <br /> Appropriately sealed and labeled samples will be placed in a chilled container under ice and <br /> transported under chain-of-custody procedure to a CDPH-certified laboratory.Each sample container <br /> will be labeled with the boring designation, time, date and sampler's initials. The ground water <br /> sample will be delivered to a laboratory for analysis of the chemicals listed in Section 3.2. <br /> 4.4. EQUIPMENT DECONTAMINATION <br /> Prior to use, all sampling tools will be thoroughly rinsed with clean water after being washed with <br /> a solution ofAlconox.All probing rods will be cleanedprior to advancement at each boring location. <br /> Advanced GeoEnvironmental,Inc. <br />