Email from Corps: Tailwater D.O. Improving

[Phil Lilley]

Subject: Change in recommended maximum generation rates

The cold spell has greatly aided in the recovery of all the lakes.  Some short term heavy generation test have shown that tailwater D.O. levels remain well above 4 ppm at Table Rock, Bull Shoals, and Norfork.  The recommended maximum generation rates at all 3 are now 100% nameplate, or 50Mw per unit at TR, 40Mw units 1-4 and 45Mw units 5-8 at BS, and 40 Mw per unit at Norfork.

The next step is closing the vents whenever the D.O. levels remain above 6 ppm.  That could happen in another week or less.

Steve Bays