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Geosyntec <br /> consultants <br /> SOIL GAS PROBE MEASUREMENTS 1111 Broadway,6th Floor <br /> Oakland,California 94607 <br /> (510)836-3034 Fax(510)836-3036 <br /> 10 Project Name: r S '0 -k--+0` uS Probe No.: s''�p ' ❑Sub-slab probe Soil gas probe <br /> Date: LaI�� I Project Number:W� Mini Roo Ss�s�ol No��.:''ppf���12 i Ei O- P-pM�) _ Lamp: 0. /11.7 eV <br /> Site Location: �'��-��_'�' C Landtech GEM'rB6B�Lbrfdfill Gas Meter Serial No.M: �FA O.2-0f'2, <br /> Weather: Y t` S�'^"L MDG 2002 Helium detector Serial No.: Pk03$cl 3 <br /> Field Personnel: N 4�v,_Q /� T 1 ") Tracer Gas: L`�-lelium ❑Other <br /> Recorded By: ti - Re �F-sn v { <br /> 20 Surface Type: ❑Asphalt [-] Concrete [-] Grass Others°—t @ 1 Casing Volume 05 Shut in test prior to pneumatic test completed,--n.H2O held forkQeconds. <br /> ❑Sub-slab <br /> Surface Thickness inches/centimeters ET�Unknown <0'I L ©Start of Pneumatic Test:_ fc leo <br /> (i.e.,asphalt or concrete) Soil gas probe p•� (L) <br /> Elapsed Time Pump Well Head <br /> ® Initial Vacuum (prior to pumping) �_ in.H20 ( ) Flow Rate Vacuum <br /> 2 min. (LPM) in.H2O <br /> 0.1 0, 0-2— <br /> 07 Field tubing blank reading(ppm ) completed? �'es E]No PID Reading ppm„ 0.� G <br /> ® Shut in test prior to purging completed? Yes []"No❑ 5 0.5 <br /> 09 Purging Tracer Gas <br /> Sample VOCs <br /> Date Start End Elapsed Bag Purge Cumulative CH, CO2 02 Shroud (%) by PID <br /> Time Time Time Volume Rate Volume (%) (%) (%) pm %) (ppm„) <br /> (min.) (L) (LPM) (L) Min Max (c one) <br /> U SS it 00 S I QwZ 1 - 0 <br /> I% g 7.,`} 004 `f 1`1 -`1 <br /> Ian I I I L �7_ L_ 2 _c7 777(z� - 1_� 5 3 S `1;E-00 `f OZ .S <br /> Il L I ,IZl3 5 ► 0-- L 3,0 7? 7C�� �' -� S. `I Z-Z `� S 10,0®o <br /> 10 Helium concentration in field screened samples is less than 5%of minimum concentration in11 Shut in test prior to sample collection completed? Yes U No IDthe shroud? [-]Yes F1 No Note:1%helium=10,000 ppm <br /> 12 Sample Collection <br /> Date Time Sample ID Summa Canister ID Flow Controller# Vacuum G uge# Initial Vacuum Final Vacuum <br /> �, (in.Hg) (in.Hg) <br /> I�} I IISS— S V e-- j 3`f 00 -Lt` w -1,3 <br /> E 3`ro'D I'3B3 _ >, 23055 �,� 1� 3 < l�15 <br /> aComments: <br /> a+� <br /> `7n ✓ `t_�Io CU-- <br />