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Chromated Copper Arsenate (CCA):
Consumer Safety Information Sheet: Inorganic Arsenical Pressure-Treated Wood

CCA Table of Contents

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[Including Chromate Copper Arsenate (CCA), Ammoniacal Copper Arsenate (ACA), and
Ammoniacal Copper Zinc Arsenate(ACZA)]

Consumer Information:

This wood has been preserved by pressure-treatment with an EPA-registered pesticide containing inorganic arsenic to protect it from insect attack and decay. Wood treated with inorganic arsenic should be used only where such protection is important.

Inorganic arsenic penetrates deeply into and remains in the pressure-treated wood for a long time. However, some chemical may migrate from treated wood into surrounding soil over time and may also be dislodged from the wood surface upon contact with skin. Exposure to inorganic arsenic may present certain hazards. Therefore, the following precautions should be taken both when handling the treated wood and in determining where to use or dispose of the treated wood.

Use-Site Precautions:

Handling Precautions:

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