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Byron as per the Red Rock expansion conference call today presented below are the emissions estimates for the auxillary engines at sta. 1-4. Understand these are not actual emissions, but are emissions based upon potential to emit. When these units were permitted actual testing data was not required, so each unit was permitted based upon an accpeted emissions limit from an EPA approved document. This has worked out in our favor as the emisisons numbers presented in the EPA document were high, therefore, this will allow us to net more emissions, if needed. Emissions are presented for a single engine only in tons per year, even though there are two auxillary units at each facility except Sta. 1 where they only have one auxillary unit. Sta. 1 1- Waukesha 350 Hp LRZ NOx 30.48 CO 121.94 VOC 1.31 Sta. 2 2- Waukeshas 350 Hp LRZ NOx 30.48 CO 121.94 VOC 1.31 Sta. 3 2-366 Hp PSVG Ingersol Rands NOx 35.35 CO 30.40 VOC .04 Sta. 4 2-450 Hp Waukeshas F3520 GU NOx 43.46 CO 37.38 VOC .05

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emissions levels for the auxillary units 1-4