To the Roane County Community Advisory Group
October 8, 2010
For those of you who missed the CAG meeting last evening this update includes most of the information we provided to the CAG and the information in the TVA Roane County News column today.
Scrubber to Undergo Maintenance
The Kingston Fossil Plant scrubber was removed from service Monday, Oct.4, and will be out of service through Tuesday, Oct. 19, to replace a transformer. During this period, up to five units will be on line using the south stack.
Utility Restoration and Enhancement
Residents are being connected to the new water lines along Hassler Mill Road to State Highway 70.
Other new utility lines, except those near the Swan Pond Circle Road Bridge, are being tested in preparation for their transfer to the City of Harriman. The bridge and the underpass are expected to be completed by Oct. 26, after which the remaining utility lines will be completed.
The Next Phase of Ash Cleanup, The Non-Time Critical Phase
In this phase we will continue restoration of the environment impacted by the ash spill, including area waters, upland areas and surface soils, and the embayments and tributaries west of dike two. About 2.8 million cubic yards of ash will be recovered from these areas and stored on site in an engineered containment structure designed to withstand a local 6.0 magnitude earthquake.
In preparation for this work,
· We are consolidating ash from the middle embayment to the central dredge cell where it can be dried and graded. We will begin the same action from the north embayment in November.
· We are building a steel and concrete underpass and bridge on Swan Pond Circle Road that will allow heavy trucks from the ash recovery site to pass beneath the road without impacting residential traffic.
· We have completed a new haul road from Swan Pond Circle Road underpass to the central dredge cell area.
· We are smoothing, or contouring, the surface of the central dredge cell in preparation for storing recovered ash.
As recovery work continues so will environmental sampling. Tennessee Valley Authority, the Environmental Protection Agency and the Tennessee Department of Environment and Conservation will continue to sample air, sediment, surface and ground water, and frogs, fish and other animals and plants that live in the river.
For sampling results and additional information on the cleanup, visit our website at www.tva.com/kingston/index.htm,
Reconstruction of the Skimmer Wall
The first of three caissons will be poured tomorrow for the reconstructed skimmer wall. The original skimmer wall was destroyed by the ash spill. Completion scheduled for mid-December 2010.
If you have any questions, please do not hesitate to contact Katie Kline or me at 806-7688.
Project Manager, Community Outreach
Tennessee Valley Authority
Kingston Ash Recovery Project