Quantcast Preservative Treatment

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1.3.1 Untreated Timber Piles. Untreated piling will not be used except for fender piles where an
analysis of pile maintenance and replacement records clearly justifies its use or where plastic
covered piling are used as described in NCEL TN-1811, Plastic Coatings and Wraps for New
Timber Piling. [Note: special care in handling and frequent inspections of installed plastic-covered
piles are required to assure that no exposure of the untreated wood occurs]
1.3.2 Treated Timber Piles. [same as 1.3.1 Timber Piles Preservative Treatment] [Add] All
preservative-treated wood, but especially creosote products shall be inspected visually to ensure
that there are no excessive residual materials or preservative deposits. If the material is not clean
and dry it must be rejected because of environmental concerns.
[add] Note: Consult with your environmental office for possible local regulations or policies that
restrict either the use of treated wood in aquatic environments or the eventual disposal of treated
[add] Note: Insofar as possible, all cuts that expose untreated wood should be avoided. Where
field cuts are absolutely necessary, e.g., pile tops, the cuts and subsequent preservative treatments
should be accomplished in accordance with AWPA M4. Use of sheet metal covers for fender
piles, however, is discouraged because the covers are easily tom by impact and become a
personnel hazard.
[Add] Specifiers and installers must follow the guidance in the treated wood Material
Safety Data Sheets (MSDS) and hazard labels as required by OSHA and use the product in
conformance with the Consumer Information Sheet that must be provided by the treated wood
supplier. Treated wood should be rejected if there
Note: Select pile treatment as follows (consult the nearest NAVFAC EFD Applied Biologist for
specific requirements for specific locations):
In those areas where Teredo and pholad are present and Limnoria tripunctata is absent,
creosote will provide adequate protection.
In those areas where Teredo and L. tripunctata attack is expected and pholad attack is
not, either dual treatment or an arsenical salt is recommended.
In those areas where Sphaeroma terebrans is present or where L. tripunctata and pholad
attack are expected, dual treatment is recommended.
[OK as is] [Add to end of paragraph] Include in the construction records the wood species,
preservative type, retention and producer of installed treated timber.


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