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首页> 外文会议>International conference on remediation of contaminated sediments >Chattanooga Creek (Tennessee Wood Products Superfund Site) Interim Capping Remedy Five Years Post-Installation Update: Overview and Monitoring Results
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Chattanooga Creek (Tennessee Wood Products Superfund Site) Interim Capping Remedy Five Years Post-Installation Update: Overview and Monitoring Results

机译：查塔努加河（田纳西州木制品超级基金站点）临时封顶补救措施，安装后五年更新：概述和监控结果

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The presentation will provide a site overview and update on monitoring activities at theTennessee Products Superfund Site. From September 2005 to September 2007 a combinedremoval and interim capping remedy was performed on a reach of the ChattanoogaCreek, which empties into the Tennessee River, just north of Chattanooga, TN.The Site consists of the former Tennessee Products coal carbonization facility, whichoperated from 1918 until 1987, and its associated coal-tar dumping areas along an approximate2.5-mile reach of the Creek and its floodplain. Site contaminants includepesticides, volatile organic compounds, polycyclic aromatic hydrocarbons, metals, andpolychlorinated biphenyls. The primary contaminant of concern was coal-tar residual.Approximately 107,300 tons of stabilized sediment was excavated from ChattanoogaCreek channel and transported for disposal at an off-site landfill. A protective isolationbarrier constructed with AquaBlok? was installed over 5,750 linear feet of Creek channelto address potential re-contamination from non-aqueous phase liquid encountered in thesubsurface.Since it is known that NAPL exists in the subsurface and no further source controlmeasures have been implemented at the site, the capping portion of the remedy was consideredan interim measure at the time of implementation. In 2008, a sampling programwas initiated to monitor the performance of the cap and determine the potential effectivelife of the interim remedy. The EPA’s Office of Research & Development worked withState and U.S. EPA Region 4 representatives and retained Dr. Reible (University ofTexas) as a consultant to perform sampling and provide analytical results. Although analysisof monitoring results is ongoing, this presentation will provide preliminary data thatindicate the interim remedy is performing as anticipated and is likely to continue to providea meaningful protection from ongoing habitat damage and exposure.
机译：该演示文稿将提供站点概述，并提供有关监视活动的最新信息。 田纳西州产品超级基金网站。从2005年9月到2007年9月 在查塔努加市范围内进行了拆除和临时封顶补救措施 溪流，排入田纳西州河，就在田纳西州查塔努加以北。 该站点由以前的田纳西州产品煤炭碳化设施组成， 从1918年到1987年一直在运行，其相关的煤焦油倾倒区域大约 距小河及其漫滩2.5英里。现场污染物包括 农药，挥发性有机化合物，多环芳烃，金属和 多氯联苯。关注的主要污染物是煤焦油残留物。 从查塔努加挖掘出约107,300吨稳定的沉积物 克里克河道，并运往场外垃圾填埋场处置。保护性隔离 用AquaBlok构建的屏障？安装在5750线性英尺的克里克河道上 解决潜在的非水相液体再污染问题 地下。 由于已知NAPL存在于地下并且没有进一步的源控制 现场已采取措施，考虑了补救措施的上限部分 实施时的临时措施。 2008年的抽样方案 开始监控上限的性能并确定潜在的有效 临时救济的期限。 EPA的研发办公室与 州和美国EPA 4区代表，并保留了Reible博士（University of 德州）作为顾问进行采样并提供分析结果。虽然分析 监控结果的持续进行中，此演示文稿将提供初步数据， 表明临时补救措施正在按预期执行，并且可能会继续提供 对正在进行的栖息地破坏和暴露的有效保护。

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