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drone view of Chesterfield CCR

Overview & Project Description

Legislation passed during the 2019 Virginia General requires Dominion Energy to remove all coal ash currently stored in two ash ponds at Chesterfield Power Station within 15 years. The coal ash must be recycled or placed in a lined landfill that meets Federal Coal Combustion Residuals (CCR) and Virginia CCR regulations.

The volume of coal ash to be removed from the Upper and Lower Ash Ponds at the station totals about 14.9 million cubic yards. This represents approximately half of the coal ash stored at the four Dominion Energy power stations in Virginia affected by the legislation.

As a result, it is anticipated that Chesterfield Power Station will face the longest timeline for coal ash pond closure. The station is also unique among Dominion Energy’s Virginia facilities impacted by the new law in that it is traversed by public roads and adjoins popular recreational and historical areas.

Given the station’s unique location, Dominion Energy and Chesterfield County developed a Memorandum of Understanding that creates a framework for preserving public access to the historical and recreational areas during the closure project. An initial Memorandum of Understanding was signed on August 28, 2019 and agreed upon on (insert date).

For more information on groundwater monitoring and data, visit Dominion Energy’s CCR Rule Compliance Data and Information page for groundwater monitoring results and closure plans.

  • MOU Agreement Date – TBD
  • Transportation Plan Submittal – TBD
  • SCC Filing on Chesterfield Coal Ash Cleanup Efforts – TBD
  • Local conditional use permit amendment, overseeing lower and upper coal facilities to allow safe closure of both sites – TBD

Senate Bill 1355 (SB 1355), enacted by the Virginia General Assembly and effective July 1, 2019, outlines requirements for closure of certain Coal Combustion Residual (CCR) impoundments located within the Chesapeake Bay watershed. Specifically, the law requires that CCR at these sites be removed and either disposed of in approved and permitted landfills or designated for encapsulated beneficial reuse. The law further requires a Transportation Plan demonstrating that the owner/operator of impacted facilities has fully considered, documented, and minimized any impacts associated with transport of CCR for removal and/or beneficial reuse. Dominion Energy (Dominion) has retained AECOM Technical Services, Inc. (AECOM) to develop this Transportation Plan for its Chesterfield Power Station (CPS).

There are two on-site surface impoundments located at CPS: Lower Ash Pond (LAP) and Upper Ash Pond (UAP), which together contain approximately 15 million cubic yards of CCR. Dominion is proposing to beneficially reuse 7 million cubic yards, which will involve construction of an on-site processing facility followed by distribution to off-site end users. The remaining 8 million cubic yards of CRR will be disposed of on-site in the permitted Fossil Fuel Combustion Products (FFCP) landfill. Numerous transportation methods—including trucking, rail, and barge—were evaluated for both the beneficial reuse and on-site disposal of CCR. The key findings are summarized below.

  • The most feasible means for on-site CCR disposal and transport from the LAP and UAP to the FFCP and beneficial reuse processing facility was determined to be on-road trucking due to the close proximity of the sites.
  • The most feasible means for transporting CCR off-site was determined to be rail due to the presence of an existing on-site rail system and the ability of end users to receive beneficially reused, encapsulated CCR via rail.
  • Dominion and its beneficial reuse contractors concluded that barging would be inefficient and less cost-effective for large-volume movement of CRR and distribution to end users.

In performing this evaluation, AECOM considered truck traffic volumes, routing, pavement and infrastructure improvements, traffic impacts, noise control, dust mitigation and safety. These items are discussed in detail in the report and are summarized below.

  • The anticipated CCR removal trucking operations are not expected to have a significant impact on traffic operations in the vicinity of CPS at any point through 2035, even at peak projected truck traffic volume of 82 trucks per hour. Therefore, no mitigation is recommended from a traffic impact perspective. To provide adequate notice to public traffic of the presence of trucks circulating during the CCR removal projects, AECOM has developed an Information Signage Plan depicting recommended signage locations.
  • Calculations predict that Dominion’s proposed fugitive dust and particulate matter control methods will achieve a control efficiency of approximately 98%, exceeding even the most stringent requirements for mitigation. Wheel washing will be employed to remove accumulated material from truck wheels prior to the trucks leaving the property, and Dominion will maintain a program of regular paved roadway cleaning to consistently remove deposits from paved surfaces.
  • The project will follow all relevant federal and local regulations regarding noise levels. While the River’s Bend community and Henricus Historical Park may experience distant noise during various phases of the project, the approximately one-mile distance from the LAP and UAP to the nearest residences and past experience with construction activity at CPS suggests that noise impacts will be localized to the site. Therefore, it is not anticipated that additional noise control measures will be required. Noise mitigation measures and operating procedures will be finalized once a contractor is selected and work details are agreed upon.
  • Consistent with its core value of safety, Dominion has committed to making public roadway improvements identified by an AECOM geotechnical evaluation and pavement investigation prior to work beginning. They will ensure public roadways are kept in a state of good repair and maintained to Virginia Department of Transportation standards for the duration of the projects at CPS. For instance, enhancements to Henricus Park Road will include wider travel lanes, paved shoulders, and a shared-use path adjacent to the roadway to separate pedestrian and vehicular traffic.
transportation map for Chesterfield

As shown on the figure above, truck traffic is not anticipated and will not be permitted to travel along Coxendale Road west of the site and in the direction of the I-95 overpass, in accordance with Virginia Department of Transportation (VDOT) signage establishing the restriction. In total, five intersections involving public roadways will be impacted by the proposed CCR hauling operation. These intersections are as follows, and are shown above:

  1. Dominion Entrance at Coxendale Road
  2. Coxendale Road at Old Stage Road
  3. Coxendale Road at Existing Lower Ash Pond Entrance and Beneficial Use facility
  4. Henricus Park Road at Coxendale Road
  5. Henricus Park Road at Proposed Lower Ash Pond Entrance

The full transportation report may be found here: Dominion Energy’s Chesterfield Power Station Transportation Plan

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