CLAHS #11 RACR APPENDIX G. SCS Photographic Log, Photographs

CLAHS #11 RACR APPENDIX G SCS Photographic Log, Photographs

PHOTO LOG A (1-50) NUMBER DESCRIPTION 1 West Central Footing Excavation Building Q. 2 60-Mil HDPE Membrane Installation Building Q. 3 60-Mil HDPE Extrusion Welding Building Q Footing. 4 100-Mil Geotextile Covered 60 Mil HDPE Membrane (Building Q Footing Prior to Steel Placement. 5 Steel Reinforcement Placement (Building Q Footing). 6 Air Injection Piping Building P (East Portion). 7 Sand Dispersion Layer Placement South of Building Q. 8 60-Mil HDPE Membrane Smoke Test Building P (East Portion). 9 Completed 60-Mil HDPE Membrane Building P (East Portion). 10 2-inch Sand Layer Atop 60-Mil HDPE Membrane - Building P (East Portion). 11 Protective 100-Mil Geofabric Atop 60-Mil HDPE Building Q Footing. 12 Concrete Pour Atop 60-Mil HDPE Membrane Building Q Footing. 13 Sand Dispersion Layer Compaction West of Academy House 3 (Duct Bank). 14 60-Mil HDPE Membrane Spark Testing Building P Elevator Rooms. 15 Hardscape Passive Vent Gravel Piping (4-inch ADS) South of Building Q (Stairway). 16 Hardscape Vent Trench Gravel Cover Compaction South of Building Q. 17 100-Mil Geofabric Layer Atop 60-Mil Membrane Vent Trench Cover West of Academy House 3. 18 60 Mil HDPE Membrane with Air Sweep System Deck Dowels Room P-108. 19 Smoke Test Apparatus P-108 60 Mil HDPE Membrane 20 Sand Dispersion Layer Placement South of Building Q. 21 Hazardous Vent Trench/Pipe Fire Access Road 22 Sand Dispersion Layer South Stairway Canopy Area 23 Liquid Boot Membrane Triple Gym, North Dance Floor Section. 24 Room P-120 Hope Boot on South Pipe Cluster. 25 Hardscape Vent Trench/Pipe North of Building- P. 26 Hardscape Vent Trench/Pipe Interior NW Corner of Building-P. 27 Sand Mitigation Layer SE of Building-P. 28 60-Mil HDPE Smoke Test Building P-120 29 Hardscape Vent System Piping SE Courtyard Road. 30 Gravel Compaction Hardscape Vent Trench Road South of Baseball Field. 31 Hardscape Vent Trench/Piping Riad West of Basketball Court. 32 18-oz Geofabric Covering Basketball Court Hardscape Vent Trench. 33 Wall-Behind Compactor used to Consolidate Gravel Atop Basketball Court Vent Trench. 34 Room P-120 Corrugated Metal Deck Air Sweep System. 35 Room P-120 Air Sweep System Metal Deck Cutting. 36 Passive Vent System Lateral - Southwest Basketball Court Vent Riser 37 Concrete Slab Reinforcement Atop Room P-120 Air Sweep System. 38 Hardscape Vent Piping in Gravel Trench North Entrance Road. 39 Hardscape Vent Piping in Gravel Trench Southeast of Building-P. 40 4-inch Schedule-80 PVC Air Injection Piping Baseball Field South of Blower Pad. 41 Pressure Gauge Central Plant Roof Top Air Blower. 42 4-inch Secdule-80 PVC Vent Lateral to Riser Southeast of Building-P. 43 Hardscape Vent System Piping/Trench Main School Entrance Area (Colton Street). 44 Hardscape Vent Trench/Piping Canopy Area (South Side). 45 4-inch ADS Passive/Vent Piping Basketball Court Area. 46 4-inch ADS Passive/Vent Piping Basketball Court Area. 47 Worker using walk-behind Compactor to Consolidate Gravel in Basketball Court Passive Vent Trench. 48 4-inch Schedule 80 PVC Vent Piping to SW Basketball Court Vent Riser. 49 Working Installing Seal/Rain CAP at Vent North School Entrance Passive Gas System Vent. 50 Vent Piping with Moisture Trap Central Plant Gas Sensor Panel.

Photo 1. West Central Footing Excavation Building Q. Photo 2. 60-Mil HDPE Membrane Installation Building Q. Photo 3. 60-Mil HDPE Extrusion Welding Building Q Footing. Photo 4. 100-Mil Geotextile Covered 60 Mil HDPE Membrane (Building Q Footing Prior to Steel Placement.

Photo 5. Steel Reinforcement Placement (Building Q Footing). Photo 6. Air Injection Piping Building P (East Portion). Photo 7. Sand Dispersion Layer Placement South of Building Q. Photo 8. 60-Mil HDPE Membrane Smoke Test Building P (East Portion)

Photo 9. Completed 60-Mil HDPE Membrane Building P (East Portion). Photo 10. 2-inch Sand Layer Atop 60-Mil HDPE Membrane - Building P (East Portion). Photo 11. Protective 100-Mil Geofabric Atop 60-Mil HDPE Building Q Footing. Photo 12. Concrete Pour Atop 60-Mil HDPE Membrane Building Q Footing.

13. Sand Dispersion Layer Compaction West of Academy House 3 (Duct Bank). 14. 60-Mil HDPE Membrane Spark Testing Building P Elevator Rooms. 15. Hardscape Passive Vent Gravel Piping (4-inch ADS) South of Building Q (Stairway). 16. Hardscape Vent Trench Gravel Cover Compaction South of Building Q.

17. 100-Mil Geofabric Layer Atop 60-Mil Membrane Vent Trench Cover West of Academy House 3 18. 60 Mil HDPE Membrane with Air Sweep System Deck Dowels Room P-108 19. Smoke Test Apparatus P-108 60 Mil HDPE Membrane 20. Sand Dispersion Layer Placement South of Building Q.

21. Hazardous Vent Trench/Pipe Fire Access Road 22. Sand Dispersion Layer South Stairway Canopy Area 23. Liquid Boot Membrane Triple Gym, North Dance Floor Section. 24. Room P-120 HDPE Boot on South Pipe Cluster.

Photo 25. Hardscape Vent Trench/Pipe North of Building- P. Photo 26. Hardscape Vent Trench/Pipe Interior NW Corner of Building-P. Photo 27. Sand Mitigation Layer SE of Building-P. Photo 28. 60-Mil HDPE Smoke Test Building P-120

Photo 29. Hardscape Vent System Piping SE Courtyard Road. Photo 30. Gravel Compaction Hardscape Vent Trench Road South of Baseball Field. Photo 31. Hardscape Vent Trench/Piping Road West of Basketball Court. Photo 32. 18-oz Geofabric Covering Basketball Court Hardscape Vent Trench.

Photo 33. Wall-Behind Compactor used to Consolidate Gravel Atop Basketball Court Vent Trench. Photo 34. Room P-120 Corrugated Metal Deck Air Sweep System. Photo 35. Room P-120 Air Sweep System Metal Deck Cutting. Photo 36. Passive Vent System Lateral - Southwest Basketball Court Vent Riser

Photo 37. Concrete Slab Reinforcement Atop Room P-120 Air Sweep System. Photo 38. Hardscape Vent Piping in Gravel Trench North Entrance Road. Photo 39. Hardscape Vent Piping in Gravel Trench Southeast of Building-P. Photo 40. 4-inch Schedule-80 PVC Air Injection Piping Baseball Field South of Blower Pad.

Photo 41. Pressure Gauge Central Plant Roof Top Air Blower. 42. 4-inch Secdule-80 PVC Vent Lateral to Riser Southeast of Building-P.

Photo 43. Hardscape Vent System Piping/Trench Main School Entrance Area (Colton Street). Photo 44. Hardscape Vent Trench/Piping Canopy Area (South Side). Photo 45. 4-inch ADS Passive/Vent Piping Basketball Court Area. Photo 46. 4-inch ADS Passive/Vent Piping Basketball Court Area.

Photo 47. Worker using walk-behind Compactor to Consolidate Gravel in Basketball Court Passive Vent Trench. Photo 48. 4-inch Schedule 80 PVC Vent Piping to SW Basketball Court Vent Riser. Photo 49. Working Installing Seal/Rain CAP at Vent North School Entrance Passive Gas System Vent. Photo 50. Vent Piping with Moisture Trap Central Plant Gas Sensor Panel.

PHOTO LOG B (1-188) NUMBER DATE DESCRIPTION 1 12/08/06 Coupon samples were cut and measured from the Liquid Boot sprayed in the Switch Gear Room. There was not adequate thickness in this room; it will need to be sprayed again. 2 04/27/06 The rejected sand on the baseball field being graded as select material for building pad P. 3 05/01/06 The Baseball Field after the rejected sand has been removed. 4 05/25/06 The spark tested geomembrane at footing Q6.4/Q B. 5 05/25/06 Slurry mix being poured into forms to repair footing Q5.3/QH. 6 05/26/06 Geotextile installation at footing Q 3/Q C. 7 05/26/06 Slurry repairs at footing Q6/QF.1. 8 05/26/06 Geomembrane installation at footing Q 3/Q C. 9 05/27/06 Cutting out of the geomembrane coupon samples. 10 05/27/06 Geomembrane coupon sample testing. 11 05/27/06 Welding of the geomembrane at footing Q5.3/QH 12 05/27/06 A slurry repair at footing Q6.4/QG. 13 05/27/06 Sand being spread on the baseball field. 14 05/27/06 Sand on the baseball field being watered. 15 05/31/06 Sand being dumped on the multipurpose field. 16 06/01/06 Access road being covered with sand, after it had been scraped. 17 06/02/06 A smoke test on footing Q 2/Q B. 18 06/05/06 Sand being placed on the Multipurpose Sportsfield. 19 06/06/06 Welding of the geomembrane at a footing in Building Q. 20 06/06/06 A two-inch layer of sand being placed on top of the final layer of geotextile at footing Q6.4/Q8, debris was removed. 21 06/06/06 The second layer of geotextile being installed at footing Q5.3/QG. 22 06/06/06 The two inch sand layer in place at footing Q5.3/QJ. 23 06/06/06 A mud slab being poured at footing Q7.3/QH. 24 06/07/06 Stockpiling of the sand on the Multipurpose Sportsfield. 25 06/09/06 Geomembrane was cut away to allow for widening of a footing at location Q7.3/QJ.3. 26 06/09/06 Geomembrane start-up welding. 27 06/09/06 Footing Q3.8/QF.4 in need of repair. 28 06/12/06 Clay being removed from the large stockpile on the multipurpose field and being placed on the sand dispersion layer, as part of the soil buffer zone. 29 06/13/06 Sharma, the grading subcontractor, using GPS to survey the soil buffer zone on the Multipurpose 30 06/14/06 A view of the soil buffer zone on top of the sand dispersion layer on the Multipurpose Sportsfield. 31 06/14/06 Sharma using GPS to survey the landscape area in between Building Q and the existing 32 06/14/06 Plumbing supplies for the gas mitigation system were arriving for the Baseball Field. 33 06/14/06 The corrugated perforated pipe for the passive venting system at the Baseball Field. 34 06/15/06 A boring on the Multipurpose Sportsfield, confirming at least 18 inches of soil cover. 35 06/16/06 Trenching for the gas mitigation piping at the Baseball Field. 36 06/16/06 Rebar placed on top of the mudslab in a footing in Building Q. 37 06/19/06 Trenches being dug in the Baseball Field for the air injection piping. 38 06/19/06 Sand being spread for the sand dispersion layer in the landscape area between Building Q and the existing buildings. 39 06/19/06 HDPE T-lock being installed on the forms for the exterior footings for Building Q. 40 06/19/06 Rebar was placed in a footing with the geomembrane system. 41 06/19/06 Sand being spread in the landscape area between Building Q and the existing buildings. 42 06/20/06 The air injection piping for the Baseball Field. 43 06/20/06 The solid north-south leg of the air injection system being installed at the Baseball Field. 44 06/21/06 A trench on First St. that requires a trench dam. 45 06/22/06 The air injection pipe on the Baseball Field was covered with a geotextile sock. 46 06/22/06 The north-south leg of the solid 4-in. SCH 80 PVC pipe on the Baseball Field. 47 06/26/06 Sand being spread in a landscape area south of the Multipurpose Sportsfield. 48 06/26/06 Sand being spread in a landscape area along Colton St.. 49. 06-28-06 The sand dispersion layer was hand augered to verify a depth of at least 18. 50 06-28-06 The sand dispersion layer was installed on the slope along Colton St.. 1 of 4

51 06-29-06 Rebar being carefully placed into a lined footing in Building Q. 52 06-29-06 HDPE T-Lock installed in the exterior footings at Building Q. 53 06/30/06 Care was taken to make certain the HDPE T-lock was embedded in the concrete of the exterior footings at Building Q. 54 06-30-06 The geomembrane installed at footings in Building Q being spark tested. 55 06/30/06 The soil buffer zone being installed on the landscape area south of the Multipurpose Sportsfield. 56 07/05/06 Backfilling the air injection piping in the sand dispersion layer on the Baseball Field. 57 07-05-06 I nstallation of the sand dispersion layer on the slope of the landscape area south of the Mutlipurpose Sportsfirle. 58 07-05-06 The HDPE T-lock embedded in the concrete footing. 59 07-05-06 The passive venting piping being installed at the Baseball Field. 60 07-10-06 Sand being delivered and stockpiled on the Multipurpose Sportsfield. 61 07/10/06 Footing excavations being repaired will slurry in preparation for the instllation of the geomembrane at Building P. 62 07/10/06 The passive venting system being installed at the Baseball Field. 63 07-11-06 HDPE T-lock installed at a footing in Building Q. 64 07/12/06 The sand dispersion layer being installed on the sloped landscape area south of the Multipurpose Sportsfield. 65 07-12-06 HDPE T-lock installed on forms for the exterior footings at Building Q. 66 07-12-06 The passive venting piping installed at the Baseball Field. 67 07-12-06 The passive venting piping installed at the Baseball Field. 68 07-13-06 The first layer of geotextile being installed at footings in Building P. 69 07-13-06 Sand being installed in the landscape area between Building Q and the existing buildings. 70 07-13-06 HDPE T-lock being installed in an exterior footing at the Central Plant. 71 07-13-06 HDPE T-lock being installed at an exterior footing in Building Q. 72 07-14-06 The sand dispersion layer being installed at the bottom of the landscape slope area along Colton St. 73. 07-20-06 A trench requiring a trench dam on Beaudry St. 74 07-20-06 Hand augering to verify the thickness of the sand dispersion layer in the landscape area between Building Q and the existing buildings. 75 07-20-06 A mud slab being poured at a footing in building P. 76 07/20/06 The geomembrane in a footing at building P that has been spark tested. 77. 07-21-06 A trench area on Beaudry St. ready for a trench dam. 78 07-21-06 The soil buffer zone was being installed on the sand dispersion layer between Building Q and the existing buildings. 79 07/21/06 Slurry being poured for trench dams along Beaudry St.. 80 07-21-06 Slurry being poured for trench dams along Beaudry St. 81 07/21/06 A completed trench dam on Beaudry St.. 82 07-21-06 Slurry being poured for a trench dam on First St.. 83 07/21/06 A completed trench dam on First St.. 84 07/27/06 The second layer of geotextile being installed at a footing in Building P. 85 07-27-06 The second layer of geotextile installed at a footing in Building P. 86 07-27-06 A 2-in. sand layer installed at a footing in Building P. 87 07/27/06 A mudslab being poured at a footing in Building P. 88 07/28/06 Rebar installed on top of a mud slab in a footing at Building P. 89 07-31-06 HDPE T-lock embedded an exterior footing at Building P. 90 08/04/06 The sand dispersion layer on the Baseball Field was hand augered using a 50 by 50 grid system to verify a depth of at least 18. 91 08-08-06 The subgrade of the landscape area along the existing buildings was prepared prior to the installation of the sand dispersion layer. 92 08-08-06 The subgrade of the landscape area along the existing buildings was surveyed prior to the installation of the sand dispersion layer. 93. 08-08-06 The soil buffer zone was being installed on the Baseball Field; the soil was spread about a foot thick by a dozer and then scrapers were used to add the additional soil. 94 08-09-06 The sand dispersion layer was installed along the existing buildings. 95 08-09-06 The sand dispersion layer along Academy House # 4 was installed. 96 08/09/06 The 3/8 gravel to be used underneath the building slabs for the gas mitigation system. 97 08/09/06 The subgrade of the landscape area along Academy Houses # 2 and 3 was surveyed prior to the installation of the sand dispersion layer. 98 08/09/06 HDPE T-lock was installed in Building P. 99 08/09/06 HDPE geomembrane around the footing in the Freezer Depression area of Building Q was repaired. 100 08/10/06 The sand dispersion layer along Academy Houses # 2 and 3 was installed. 101 08/10/06 The trenches for the passive venting piping system in sequences 1 and 2 of Building Q were filled with a 2 gravel base. 102 08/10/06 The passive venting piping was installed in sequences 1 and 2 of Building Q. 103 08/10/06 The sand dispersion layer was installed along the Triple Gym and Academy House # 4. 2 of 4

104 08/11/06 The sand dispersion layer was installed in the large landscape in between Building Q and the existing buildings. 105 08/11/06 The passive venting piping was installed on a 2 gravel base in sequence of Building Q. 106 08/11/06 Pipe sleeve were installed where ever the passive venting piping crossed the footings. 107 08/14/06 Passive venting piping was held in place during the installation of the gravel layer at Building Q. 108 08/14/06 The subgrade on a portion of the Multipurpose Sportsfield was surveyed before the sand dispersion layer was installed. 109 08/15/06 Geomembrane boots were installed on sleeves for piping penetrations in seq. 1of Building Q. 110 08/15/06 The soil buffer zone being installed on a portion of the Multipurpose Sportsfield. 111 08/15/06 The air injection piping being installed in seq.1 of Building Q. 112 09/06/06 Geomembrane was installed for the freezer depression area in Building Q. 113 09/07/06 The second layer of geotextile was installed for the freezer depression area in Building Q. 114 09/08/06 Geomembrane boots being installed on conduit penetrations in the electrical area in Building Q. 115 09/12/06 The air sampling piping being lowered into the gravel layer. 116 09/13/06 A trench on the Multipurpose Sportsfield that went through the sand dispersion layer. 117 09/16/06 Geomembrane installation in seq. 1 and 2 of Building Q. 118 09/16/06 Welding of the geomembrane in seq. 1 and 2 of Building Q. 119 09/18/06 Spark testing of the geomembrane in seq. 1 of Building Q. 120 09/19/06 Geomembrane being installed in the electrical area in seq. 2 of Building Q. 121 09/20/06 Elastuff sealant was applied to boots in Building Q. 122 09/22/06 Smoke testing of the geomembranr in seq.2 of Building Q. 123 09/22/06 Smoke coming out of vent riser during the smoke test in seq.2 of Building Q. 124 09/23/06 Geomembrane being installed in seq. 3 of Building Q. 125 09/30/06 Trenching for the passive venting piping at Building P. 126 10/02/06 Smoke testing of seq. 3 of Building Q. 127 10/03/06 Installation of the sand dispersion layer along the wall at the Baseball Field. 128 10/05/06 The geomembrane being installed at seq. 4 of building Q. 129 10/06/06 The geomembrane being smoke tested at Building Q. 130 10/10/06 Testing of the air sampling piping at Building P. 131 10/11/06 Testing of the air sampling piping at Building P. 132 10/11/06 Smoke testing of the geomembrane in seq. 4 of Building Q. 133 10/16/06 Smoke testing the geomembrane on the south side of Building Q. 134 10/18/06 The air sampling piping at Building P being wrapped with geotextile and buried in the gravel layer. 135 10/23/06 The passive venting piping installed at Building P. 136 11/01/06 The passive venting piping being installed in the Central Plant.eomembrane being installed on the east side of Building P. 137 11/02/06 The passive venting piping being installed in the Central Plant. 138 11/03/06 A trench was dug for the installation of a gas mitigation trench dam at the entrance of the Central Plant. 139 11/06/06 A trench dam being installed near the SW corner of Building Q. 140 11/06/06 A trench dam being installed near the entrance of the Central Plant. 141 11/06/06 HDPE Paraseal liner was installed on the retaining walls of Building P East. 142 11/07/06 The geomembrane at Building P was smoked tested. 143 11/07/06 The second layer of geotextile was installed on the east side of Building P. 144 11/08/06 A trench dam was installed on the west side of Building P. 145 11/09/06 HDPE Paraseal liner was installed on the retaining walls of Building P East. 146 11/13/06 HDPE Paraseal liner being installed on the retaining walls of Building P East. 147 11/13/06 The air sampling piping installed in the Central Plant was tested. 148 11/16/06 The air sampling piping being wrapped with geotextile before being buried in the gravel at the Central Plant. 149 11/17/06 The geomembrane on the Building P East retaining walls being spark tested. 150 11/17/06 The bottom layer of geotextile being installed at the Building P Elevator Pit. 151 11/22/06 The geomembrane in the Central Plant being smoke tested. 152 11/22/06 Smoke could be seen exiting the vent riser near the entrance of the Central Plant. 153 11/29/06 The first layer of geoemembrane being installed at the Building P Elevator Pit. 154 11/30/06 The first layer of geomembrane being installed in the Building P Elevator Pit. 155 12/04/06 The second layer of geomembrane being installed at the Building P Elevator Pit. 156 12/06/06 Elastuff was poured into the bracket installed around the closely spaced conduits in the Switch Gear Room. 3 of 4

157 12/07/06 A geotextile was installed in the Switch Gear Room. The Liquid Boot will be sprayed directly on top of this geotextile. 158 12/07/06 Liquid Boot being sprayed in the Switch Gear Room. 159 12/07/06 The second layer of geomembrane being installed at the Building P - Elevator Pit. 160 12/08/06 Coupon samples were cut and measured from the Liquid Boot sprayed in the Switch Gear Room. There was not adequate thickness in this room; it will need to be sprayed again. 161 12/12/06 Batten bar as well as a second layer of geotextile were installed on the chiller valve vault on the west side of Building P. 162 12/15/06 The passive venting piping system for Building Q was smoke tested after the slab was poured. Smoke was injected at vent riser VRQ-4 and could be seen exiting all of the others. 163 12/15/06 Smoke was observed flowing out of vent riser VRQ-5. 164 12/15/06 The passive venting piping system for the Central Plant was smoke tested after the slab was poured. Smoke was injected at vent riser VRC-1. 165 12/15/06 Smoke was observed flowing out of vent riser VRC-2. 166 12/15/06 The passive venting piping system for Building P - West was smoke tested after the slab was poured. Smoke was injected at vent riser VRP-1. 167 12/15/06 Smoke was observed flowing out of vent riser VRP-3. 168 12/18/06 The Liquid Boot system in the Switch Gear Room was smoke tested using a smoke machine and a ShopVac. 169 12/18/06 Coupons were cut from the Liquid Boot system in the Switch Gear Room to verify the thickness of the application. 170 12/19/06 Geotextile was installed on the floor of the Switch Gear Room after the Liquid Boot had cured. 171 12/22/06 The air sampling piping being wrapped with a geotextile before being buried in the 3 sand layer. 172 01/09/07 Gravel was installed in the DWP Vault and the 3 thickness was determined by using a laser to shoot the before and after elevations. 173 01/18/07 Batten bar being installed along the west and north walls of the DWP Vault. 174 01/22/07 Elastuff was poured into the booted pipes that were around the ground wire penetrations in the DWP Vault to make a seal. 175 01/23/07 The geomembrane being welded in the DWP Vault. 176 01/24/07 Stainless steel clamps were installed on the piping penetrations in the DWP Vault. 177 01/24/07 The DWP Vault was smoke tested and smoke was seen coming from in between the strands of the ground wires. 178 01/25/07 The ground wires in the DWP Vault were Cadwelded to make a section of the wire solid and the Elastuff will be extended past this solid section to make a seal. Welding blankets and plywood were used to protect the geomembrane from the hot materials. 179 01/25/07 A ground wire that was Cadwelded. 180 01/26/07 The geomembrane system in the DWP Vault being smoke tested. 181 01/26/07 The flowrate of a ShopVac was adjusted and the air sampling piping was tested for the DWP Vault. 182 01/26/07 The geomembrane system in the DWP Vault was smoke tested again. 183 01/26/07 The Cadwelded wire and the repaired geomembrane in the DWP Vault were smoke tested again and there was no leaks. 184 01/26/07 The patch for the smoke injection point in the DWP Vault being spark tested. 185 06/11/07 Geomembrane being installed in the Triple Gym. 186 06/12/07 The geomembrane being smoke tested in the Triple Gym. 187 06/24/07 Geomembrane boots being installed on piping penetrations in the Triple Gym. 188 06/26/07 Passive venting piping being installed in the parking structure. 4 of 4

Photo 1. 04-24-06 The rejected sand being used as a select material for building pad Q. Photo 2. 04-27-06 The rejected sand on the baseball field being graded as select material for building pad P. Photo 3. 05-01-06 The Baseball Field after the rejected sand has been removed Photo 4. 05-25-06 The spark tested geomembrane at footing Q6.4/Q B.

Photo 5. 05-25-06 Slurry mix being poured into forms to repair footing Q5.3/QH. Photo 6. 05-26-06 Geotextile installation at footing Q 3/Q C. Photo 7. 05-26-06 Slurry repairs at footing Q6/QF.1. Photo 8. 05-26-06 Geomembrane installation at footing Q 3/Q C.

Photo 9. 05-27-06 Cutting out of the geomembrane coupon samples Photo 10. 05-27-06 Geomembrane coupon sample testing. Photo 11. 05-27-06 Welding of the geomembrane at footing Q5.3/QH Photo 12. 05-27-06 A slurry repair at footing Q6.4/QG.

Photo 13. 05-27-06 Sand being spread on the baseball field. Photo 14. 05-27-06 Sand on the baseball field being watered. Photo 15. 05-31-06 Sand being dumped on the multipurpose field Photo 16. 06-01-06 Access road being covered with sand, after it had been scraped.

Photo 17. 06-02-06 A smoke test on footing Q 2/Q B. Photo 18. 06-05-06 Sand being placed on the Multipurpose Sportsfield. Photo 19. 06-06-06 Welding of the geomembrane at a footing in Building Q Photo 20. 06-06-06 A two-inch layer of sand being placed on top of the final layer of geotextile at footing Q6.4/Q8, debris was removed.

Photo 21. 06-06-06 The second layer of geotextile being installed at footing Q5 3/QG Photo 22. 06-06-06 The two inch sand layer in place at footing Q5.3/QJ. Photo 23. 06-06-06 A mud slab being poured at footing Q7 3/QH Photo 24. 06-07-06 Stockpiling of the sand on the Multipurpose Sportsfield.

Photo 25. 06-09-06 Geomembrane was cut away to allow for widening of a footing at location Q7.3/QJ.3. Photo 26. 06-09-06 Geomembrane start-up welding. Photo 27. 06-09-06 Footing Q3.8/QF.4 in need of repair. Photo 28. 06-12-06 Clay being removed from the large stockpile on the multipurpose field and being placed on the sand dispersion layer, as part of the soil buffer zone.

Photo 29. 06-13-06 Sharma, the grading subcontractor, using GPS to survey the soil buffer zone on the Multipurpose Sportsfield. Photo 30. 06-14-06 A view of the soil buffer zone on top of the sand dispersion layer on the Multipurpose Sportsfield. Photo 31. 06-14-06 Sharma using GPS to survey the landscape area in between Building Q and the existing buildings in preparation for sand placement. Photo 32. 06-14-06 Plumbing supplies for the gas mitigation system were arriving for the Baseball Field.

Photo 33. 06-14-06 The corrugated perforated pipe for the passive venting system at the Baseball Field. Photo 34. 06-15-06 A boring on the Multipurpose Sportsfield, confirming at least 18 inches of soil cover. Photo 35. 06-16-06 Trenching for the gas mitigation piping at the Baseball Field. Photo 36. 06-16-06 Rebar placed on top of the mudslab in a footing in Building Q.

Photo 37. 06-19-06 Trenches being dug in the Baseball Field for the air injection piping. Photo 38. 06-19-06 Sand being spread for the sand dispersion layer in the landscape area between Building Q and the existing buildings. Photo 39. 06-19-06 HDPE T-lock being installed on the forms for the exterior footings for Building Q. Photo 40. 06-19-06 Rebar was placed in a footing with the geomembrane system.