Table 34. Preservative retention for treatment of wood piles (from AWPA C3) 









Retention by SPECIES (pcf) 





<D 



C 

 •H 



a, 



e 

 u 



<D 

 J3 

 +-> 



3 

 o 



CD 



u 



Ji 

 (/) 



rt 

 i—i 

 bo 



3 



a 



i—i 



rt 

 ■P 

 to 

 rt 

 o 

 u 



O 



CM 



o 



c 



•H 



a, 



CM 



tr> cci 0) 

 CD in C 



C O -H 

 •H fn a 



a cu 



-3 G CJ 

 CD o rt 



os a '-j 



Lodgepole Pine 

 Western Larch 

 Interior Douglas Fir 



o 



• H 



+J 

 O 



•H 

 P< 



< 



Types of Preservative 



■3 

 c 

 ca 



0) 



- 4-> 

 C rt 

 O 3 

 ■H X 

 4-> tO 



rt 0) 



3 

 O 



Creosote- 1 

 Pentachlorophenol 

 CCA or ACA 



12.0 

 .6 

 .8 



17.0 

 .85 

 1.0 



6.0 



.3 



NR 4 



12.0 

 .6 

 .8 



17.0 j 

 .85 

 1.0 



m 



CM 



CD 

 bo 



e 



3 

 0) 



■p 

 n) 

 3 



4-> 



rt 



bo 



C 



•H 

 C/> 



Creosote- 1 

 CCA or ACA 



20.0 5 

 or25.0 6 



2.5 7 



20. 5 

 or 22. 6 



2.5 7 



10. O 3 ' 5 



NRV 



20.0 2 A5 

 2.5 2 . 3 , 7 





CO 



1— ( 

 nJ 



3 

 Q 



Creosote 1 

 CCA or ACA 



20.0 

 1.0 



20.0 

 1.0 









Includes creosote-coal tar. 



2 Ponderosa and jack pine piles are not used in saltwater environments. Applies 

 only to red pine piles. 



3 Fed. Spec. TT-W-571J does not specify oak and red pine piles for saltwater use. 



4 Not recommended. 



5 Teredo is present with no to light liranoria activity. 



°Fed. Spec. TT-W-571J recommends these where teredo is present with light lim- 

 noria activity. Navy prefers these over dual treatment for fender piles. 



7 Limnoria activity is moderate to heavy but pholads are absent. 



8 Limnoria is present with teredo or pholads. 



256 



