7. Annually there was a threefold greater wood-loss from untreated Douglas Fir than from Red Oak 

 timbers, but both types of wood were readily infested, and generally decomposed within 2-3 years. 



8. Commercially available preservatives (e.g., creosote, CCA) retard woodborer infestation. However, 

 chemical treatments were compromised by cutting the timbers. These cut surfaces exposed untreated 

 grain which allow woodborers to enter the timbers. At EF and GN, CCA treated timbers with 

 exposed untreated grain had up to 50% wood-loss in three years. 



CONCLUSIONS 



Results from these studies indicated that thermal effects due to two unit operation at the Millstone 

 Nuclear -Power Station were restricted to within 100 m of the effluent discharge point. In future studies, 

 sustained increase in abundance of Teredo navalis, Balanus eburnens and MytHus edulis or the sustained 

 decrease in abundance of Balanus crenatus and Laminaria saccharina at nearby sites would indicate thermal 

 effects caused by three unit operation. In addition. Teredo bartschi recruitment, and establishment of 

 reproductive populations at sites beyond 100 m from the effluent discharge point would also be considered 

 power plant related. 



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