(mostly from abrasion) and no detectable rusting of steel below water except 

 for the square of exposed steel that had a hard tight film of rust but no pitting 

 or active corrosion. Rather heavy marine fouling had accumulated since the 

 buoy was washed 1 year earlier. Fouling included tunicates, barnacles, green 

 algae, mussels, and tube worms. 



Table 14. Potential Profile of Mooring With Specialized Zinc Anodes 

 and Four Cables 22 Months After Relocation 



Reading 

 No." 



Potential (mv) on — 



Riser-Chain 



Leg 1 



Leg 2 



Leg 3 



Leg 4 



1 



-965^ 



-870^ 



-880'^ 



-87 5^^ 



-875'' 



2 



-985 



-920 



-910 



-915 



-915 



3 



-990 



-1,010"^ 



-980'^ 



-990^^ 



-985'' 



4 



-1,000'^ 



-915 



-935 



-930 



-925 



5 



-930 



-915 



-930 



-925 



-930 



6 



-875'' 



-915 



-930 



-925 



-925 



7 



- 



-910 



-930 



-930 



-930 



8 



- 



-910 



-935 



-930 



-935 



9 



- 



-860 



-935 



-920 



-955 



10 



- 



-965^ 



-985'^ 



-geo'' 



-995'^ 



11 



- 



-915 



-945 



-935 



-950 



12 



- 



-910 



-945 



-915 



-945 



13 



- 



-910 



-940 



-915 



-945 



14 



- 



-905 



-940 



-930 



-940 



15 



- 



-905 



-930 



-925 



-935 



16 



- 



-905 



-935 



-930 



-940 



17 



- 



-97 O'' 



-980^^ 



-990^^ 



-985'^ 



18 



- 



-915 



-950 



-925 



-945 



19 



- 



-900 



-945 



-920 



-940 



20 



- 



-890 



-860 



-915 



-910 



21 



- 



-785*^ 



-660'' 



-825'' 



-785'' 



" Readings taken approximately every 10 to 20 feet. 



^ At buoy. 



" At ground ring. 



'^ At link on which anode was cast. 



" At anchor. 



35 



