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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 […]
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 […]
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 […]