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首页> 外文会议>Shale energy engineering conference 2014: technical challenges, environmental issues, and pubulic policy >Restoration of Streams and Wetlands Following Pipeline Construction Projects
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Restoration of Streams and Wetlands Following Pipeline Construction Projects

机译：管道建​​设项目后的溪流和湿地恢复

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Pipelines are routinely installed under streams and wetlands, resulting in temporary impacts to these resources. Section 404 of the Clean Water Act requires impacted streams, wetlands, and other waterbodies to be either restored or replaced. However, if the streams and wetlands are not restored correctly, the impacts can be permanent. The success of stream and wetland restoration is primarily dependent on returning the disturbed areas to pre-existing conditions and contours, which can be readily verified by monitoring construction activities or conducting post-construction monitoring. Recently, the U.S. Army Corps of Engineers (Corps) added a special permit condition to several linear projects in Pennsylvania requiring post-construction monitoring of restored streams and wetlands to ensure the success of the restoration efforts. The special permit condition required that a summary report of the monitoring be submitted to the Corps stating that excess fill material was removed and the site was restored to pre-existing conditions and contours. The report also needed to document the existence and relative success of revegetation efforts and installed erosion and sedimentation controls. The majority of stream and wetland permits for pipeline projects do not include a special condition requiring post-construction monitoring. Further, most natural gas operators do not typically conduct construction monitoring or post-construction monitoring to specifically review stream and wetland restoration efforts unless required as a permit condition. Without monitoring, easily avoidable and solvable problems could result in permanent stream and wetland impacts. As more pipelines are installed, stream and wetland restoration may become a primary environmental and regulatory concern and require more active construction monitoring by natural gas operators.
机译：管道通常安装在溪流和湿地下，对这些资源造成暂时影响。 《清洁水法》第404条要求对受影响的溪流，湿地和其他水体进行修复或更换。但是，如果溪流和湿地没有正确恢复，则影响可能是永久的。溪流和湿地恢复的成功主要取决于将受干扰的地区恢复到既有的状况和轮廓，这可以通过监测施工活动或进行施工后监测而容易地得到验证。最近，美国陆军工程兵团（Corps）为宾夕法尼亚州的几个线性项目增加了特殊的许可条件，要求对恢复的河流和湿地进行施工后监控，以确保恢复工作的成功。特殊许可条件要求将监测的摘要报告提交给兵团，说明去除了多余的填充物，现场恢复到先前的条件和轮廓。该报告还需要记录植被恢复工作以及已安装的侵蚀和沉积控制措施的存在和相对成功。管道项目的大多数溪流和湿地许可证都不包括需要对施工后进行监控的特殊条件。此外，除非许可条件要求，否则大多数天然气运营商通常不会进行施工监控或施工后监控来专门审查溪流和湿地恢复工作。如果不进行监控，那么容易避免和解决的问题可能会导致永久性的溪流和湿地影响。随着更多管道的安装，溪流和湿地的恢复可能会成为主要的环境和法规问题，需要天然气运营商进行更积极的施工监控。

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