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Subbotnikova [EF From: Ande4115n, Garrick <Garrick.Anderson@CBIFederai9LI'fvices.com> Sent: Tuesday, August 20, 2013 11:09 PM To: Michael Carroll; Joyesh Chandra; Isham, Julian Cc: Anderson, Garrick; TGarver@greggdrilling.com; Natalia Subbotnikova [EH] Subject: Status of Well GW -9 Gentlemen, As of the end of today, August 20th, well GW -9 had been drilled (to 50.5 ft), the three individual 3/4 -inch, Schedule 80, PVC screens and blank PVC riser pipe have been installed. GW -9 backfill was completed as follows: The lower screen was run from 43 to 49.5 ft. Gravel -pack was placed from 42.5 to 50 ft. Hydrated bentonite seal was placed from 37.5 ft to 42.5 ft. Note: the bentonite seal was adjusted downwards slightly (as agreed) , to extend into the top of the underlying clay interval. Immediately below this formation clay is the lower screen that crosses a silt zone of moderately - heavy iron oxidation staining. The intermediate screen was run from 15.5 to 37.0 ft. Gravel -pack was placed from 15 to 37.5 ft. Hydrated bentonite seal was placed from 10 to 15 ft. The upper screen was run from 5.5 to 9.5 ft. Gravel -pack was placed from 5.0 to 10 ft. Hydrated bentonite seal was placed from 5 ft all the way to surface. * Note: Surface soil of a 5' x 5' x 1.5' area was dug out for the upcoming surface -completion concrete work. The soil was dug out around the existing hydrated bentonite column of 8" diameter (the continuation of the underlying backfill) which contains the three PVC riser -pipes that extend above ground surface. The plan for Aug. 21st is as follows: 0600 hrs - Garrick onsite 0700 hrs - Gregg Drilling crew onsite 0730 hrs - Gregg's air -knife crew to arrive onsite 0700 to 0730 hrs - Shell Pipeline Clearance crew to arrive rs - San Joaquin County Inspector, Natalia Subbortnikova, to arrive 1130 to 1200 hrs - Joyesh to arrive onsite First thing tomorrow morning, the air -knife crew is to air -knife two locations; the first will be on top of Shell's pipeline to locate the pipeline's actual position; the second location to be air -knifed will be at the GW -8 location. Once the air -knifing is completed, Gregg Drilling will be ready to immediately begin well -drilling. Please call if there are any questions or concerns. Thank you! Garrick Garrick Anderson, CPG Project Geologist, CB&I Garrick.Anderson(a)cbifederalservices.com Cell: 510-206-1373