EPA releases interim final guidance on state CCR permit programs for comment

August 16th, 2017

The U.S. Environmental Protection Agency (EPA) has made public an interim final guidance outlining the process and procedures EPA generally intends to use to review and make determinations on state coal combustion residual (CCR) permit programs This document provides guidance to the states for developing and submitting a program to EPA for approval. The guidance […]

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Geosynthetic Institute News

August 1st, 2017

Commentary on geosynthetic specifications One can only suspect that the first specification on a given manufactured material came along with or very shortly after the first manufactured product became available. It follows then that some 200 years later, manufactured geosynthetic materials should do likewise. In fact, so-called standards organizations have evolved by publishing the following […]

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CCR management using geotextile tubes

August 1st, 2017

Introduction Since the late 1800s, coal has played a leading role in U.S. production of electrical energy. Coal-fired power plants have provided reliable electrical power from the earliest days when power plants were run with hand-fed coal to heat boilers to produce steam. The introduction of pulverized coal led to improvements in the electrical-generation process […]

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Panorama: California passes law to spend $52.4 billion on infrastructure, and EPA’s hydrologic evaluation of landfill performance (HELP) model

August 1st, 2017

California passes law to spend $52.4 billion on infrastructure Gov. Edmund G. Brown Jr. signed a package of legislation to improve transportation and create jobs in communities across California. “Safe and smooth roads make California a better place to live and strengthen our economy,” said Gov. Brown. “This legislation will put thousands of people to […]

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Using geosynthetics for macroencapsulation for CCR on-site clean closure

August 1st, 2017

Coal combustion residuals (CCR) have been used for many years in the construction of berms and engineered structural fill applications, including embankments for highways, dikes, and levees. However, large, unencapsulated structural fill projects have become a focus of environmental concerns due to potential leaching of metals and structural failures. Cap-in-place of CCR surface impoundments is […]

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