http://www.tceq.texas.gov A collection of photos from the Texas American Oil state Superfund site. daily 1 2011-08-17T01:01:35Z http://www.tceq.texas.gov/remediation/superfund/photo_gallery/txamer/photo1 Hidden underneath the asphalt layer was as much as six feet of contaminated soil. No publisher Robin Maiorisi 2011-08-30T18:28:48Z Image http://www.tceq.texas.gov/remediation/superfund/photo_gallery/txamer/photo2 The remediation contractor excavated as deep as six feet to get below the layers of contamination. No publisher Robin Maiorisi 2011-08-30T18:28:49Z Image http://www.tceq.texas.gov/remediation/superfund/photo_gallery/txamer/photo4 The excavated material was loaded into containers for removal to an approved disposal site. No publisher Robin Maiorisi 2011-08-30T18:28:49Z Image http://www.tceq.texas.gov/remediation/superfund/photo_gallery/txamer/photo5 Collected liquids from the site were put into the former frac tank, with the entire batch to be analyzed and classified as cleanup neared completion. No publisher Robin Maiorisi 2011-08-30T18:28:50Z Image http://www.tceq.texas.gov/remediation/superfund/photo_gallery/txamer/photo7 In many places, 6 to 8 inches of concrete had to be broken up before contaminated soil could be excavated. No publisher Robin Maiorisi 2011-08-30T18:28:50Z Image http://www.tceq.texas.gov/remediation/superfund/photo_gallery/txamer/photo8 Excavated soil that could be stabilized, and re-used on-site, was stockpiled. The excavating also uncovered numerous buried barrels. No publisher Robin Maiorisi 2011-08-30T18:28:51Z Image http://www.tceq.texas.gov/remediation/superfund/photo_gallery/txamer/photo9 In some portions of the site, it was necessary to excavate all of the soil cover down to bedrock to remove the contamination. No publisher Robin Maiorisi 2011-08-30T18:30:00Z Image http://www.tceq.texas.gov/remediation/superfund/photo_gallery/txamer/photo10 The remediation contract called for wetting down the surfaces when the wind started to blow, to keep pollutants from becoming airborne and being spread off-site. No publisher Robin Maiorisi 2011-08-30T18:30:00Z Image http://www.tceq.texas.gov/remediation/superfund/photo_gallery/txamer/photo11 The silo at the right side of the photo contains cement, which was mixed with the stockpiled dirt to bond the contamination. The mixture was then spread over the excavation and compacted. The bonding and compaction will prevent runoff from carrying contaminants as was the case before this remedial action. No publisher Robin Maiorisi 2011-08-30T18:28:52Z Image http://www.tceq.texas.gov/remediation/superfund/photo_gallery/txamer/photo12 Excavation temporarily exposed the contaminated soil, and rains could wash contamination into the creek. The dam blocked the creek and captured the runoff before it spread the contamination across adjoining properties. No publisher Robin Maiorisi 2011-08-30T18:28:54Z Image http://www.tceq.texas.gov/remediation/superfund/photo_gallery/txamer/photo13 The remedial action equipment mixed cement with the soil to bond the contaminants. The mixture was then spread in the excavation and compacted. No publisher Robin Maiorisi 2011-08-30T18:28:55Z Image http://www.tceq.texas.gov/remediation/superfund/photo_gallery/txamer/photo14 Air monitoring stations are located at five different points along the site boundary. They test the air traveling off-site for lead, chloroform, and polychlorinated biphenyls (PCBs). No publisher Robin Maiorisi 2011-08-30T18:28:55Z Image