RD462 - First Biennial Report for Beneficial Reuse Proposal Analysis for the Glen Lyn Industrial Waste Coal Combustion Residuals (CCR) Units – October 1, 2023


Executive Summary:

In accordance with subsection G. paragraph 1 of § 10.1-1402.04 this report is to describe the owner’s or operator’s closure plan for all CCR units (Landfill, West Sediment Pond, Aux Pond, and Bottom Ash Pond (BAP)).

The proposed closure plan for the existing coal combustion residual (CCR) units describes the methodologies and sequence of events required to complete the removal of the CCR residing in each of the units in accordance with applicable standards established by Virginia Solid Waste Management Regulations (9VAC20-81). The Landfill Mining application (9VAC20-81-385) will outline the closure plans for each of the units and will be submitted to Virginia Department of Environmental Quality (DEQ) for approval as a major modification (9VAC20-81-600) to the existing Solid Waste Permit #222. Additionally, the closure plan for the bottom ash pond includes excavating the materials within the ponds and berms, regrading, and reducing the height of the berms along the New and East River.

In accordance with subsection B of § 10.1-1402.04, APCo is in the process of designing a Solid Waste Landfill adjacent to the property upon which the CCR units are located that meets or exceeds the requirements of 40 CFR 258 to manage the CCR materials that cannot be utilized for beneficial reused from the Glen Lyn CCR units. This Solid Waste Landfill will be in West Virginia and the design permitting package will be submitted to West Virginia Department of Environmental Protection for approval to received CCR.

Additionally, groundwater monitoring wells that are lost during the excavation activities will be replaced with new groundwater monitoring wells. A revised groundwater monitoring plan will be submitted to DEQ for approval. Groundwater monitoring will be conducted until the groundwater demonstrates to be at or below the DEQ approved site-specific groundwater protection standards for the required period of time.

Closure will be considered complete once the performance standards under 9VAC20-81-810 A5 have been met.