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> Technical Information > EPA Guidlines

Supplemental Guidance on Interpretation of Revised
Chromated Copper Arsenate (CCA) Wood Preservative Label (PDF 168KB)


CCA Guidance (Questions and Answers) (PDF 48KB)

Guidance for Uses of Chromated Copper Arsenate (CCA) AWPA Commodity Standards (PDF 81KB)


This wood has been preserved with SUPATIMBER wood preservative, an EPA registered pesticide (CCA), containing inorganic arsenic to protect it from termite attack and decay. Wood treated with inorganic arsenic should be used only where such protection is important.

CCA preservative penetrates deeply into and remains in the pressure-treated wood for a long time. Exposure to CCA preservative may present certain hazards. Therefore, the following precautions should be taken both when handling the treated wood and in determining where to use the treated wood.


Stocking Inventory CCA Timbers
#2 SYP S4S 0.6 CCA
#2 SYP Rough 0.6 CCA
3x6   (72) 12,16
3x8   (48/60) 8,10,12,14,16,20,24
3x10 (40) 10,12,16,20,24
3x12 (32) 12,16,20
4x8   (36) 10,12,16,20, 24
4x10 (32) 10,12,14,16,20
4x12 (24) 12,16,20,24
6x8   (24) 6,8,10,12,14,16,20
8x8   (18) 6,8,10,12,14,16,20


6x10 (20) 10,12,16,20
6x12 (20) 12,16,20,24
8x12 (12) 12,16,20,24
10x10 (16) 10,12,16,20,24
10x12 (12) 14
12X12 (12) 10,12,14,16,20,24
Pre-Milled Guardrail Stock 0.6 CCA
TONGUE AND GROOVE
8x8-5'.4" # 2, SYP, S4S milled w/ 1" chamfered top & 4x8 mortise (lines, ends& corners)

10x10-5'.4" #2, SYP, RGH milled w/ 1" chamfered top & 4x8 mortise (lines, ends& corners)
2x8-12' #1 .60 CCA KD AFTER
3x10 #2 2.5 CCA 12,14,16

***All timbers are available by piece or in unit quantities. #1, #1 Dense and Select structural timbers are obtainable by special order. All timbers are treatable up to 2.5 CCA.
Approximate unit size in ( ).***




Stocking Inventory CCA Pilings
2.5 CCA
1.0 CCA
Class B   20,25,30,35,40,50
8" BUTT   16,20,25
10" BUTT 16,20,25,30
8" TIP      15,20,25,30,35
12" BUTT 20,25,30,35,40
Class B   25,30,35
8" TIP      20,25,30,35
12" TIP     25,30,35


Use Site Precautions

Wood pressure-treated with waterborne arsenical preservatives may be used inside residences as long as all sawdust and construction debris are cleaned up and disposed of after construction.

Do not use treated wood under circumstances where the preservative may become a component of food or animal feed. Examples of such sites would be structures or containers for storing silage or food.

Do not use treated wood for cutting boards or countertops.

Only treated wood that is visibly clean and free from surface residue should be used for patios, decks and walkways.

Do not use treated wood for construction of those portions of beehives which may come into contact with the honey.

Treated wood should not be used where it may come into direct or indirect contact with public drinking water, except for uses involving incidental contact such as docks and bridges.

Handling Precautions

Dispose of treated wood by ordinary trash collection or burial. Treated wood should not be burned in open fires or in stoves or fireplaces because toxic chemicals may be produced as part of the smoke and ashes. Large quantities of treated wood from commercial or industrial use (e.g., construction sites) may be burned in commercial or industrial incinerators in accordance with State and Federal regulations.

Avoid frequent or prolonged inhalation of sawdust from treated wood. When sawing and machining treated wood, wear a dust mask. Whenever possible, these operations should be performed outdoors to avoid indoor accumulations of airborne sawdust from treated wood.

When power-sawing and machining, wear goggles to protect eyes from flying particles.

After working with the wood and before eating, drinking, and use of tobacco products, wash exposed areas thoroughly.

If preservative or sawdust accumulates on clothes, launder before reuse. Wash work clothes separately from other household clothing.

Important

  • Allow freshly treated wet wood to dry thoroughly before handling.
  • Do not burn treated wood.



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