Construction Materials and Related Products

Abbreviations:

USE
A Allowed - restrictions may apply and are described in the annotation
X Prohibited

USE NAME OF MATERIAL ANNOTATION
X Ammonium lignosulfate Prohibited.
X Arsenate-treated lumber Includes copper chromium arsenate. Existing arsenate-treated lumber does not need to be removed and since problems with disposal of treated posts is part of the concern with them, recycling of existing posts within the landscape is allowed. Arsenate-treated lumber cannot be in contact with soil used to grow vegetables (boxed beds).
A Borate Sodium tetraborate and octaborate may be used as wood preservatives. Only mined sources acceptable.
A Calcium lignosulphate Allowed as a dust suppressant or inert ingredient. See 'Lignin sulfonates'
A Clay products Allowed.
A Concrete products Fresh concrete may temporarily change the soil pH in its vicinity. Appropriate protection measures should be taken.
X Cooper chromium arsenate Prohibited.
A Copper hydroxide Allowed as a wood preservative. See 'Wood preservatives (allowed)' for restrictions.
A Copper oxides Allowed as a wood preservative. See 'Wood preservatives (allowed)' for restrictions.
A Copper oxychloride Allowed as a wood preservative. See 'Wood preservatives (allowed)' for restrictions.
A Copper sulphate Allowed as a wood preservative. See 'Wood preservatives (allowed)' for restrictions.
A Copper zinc chromate Allowed as a wood preservative. See 'Wood preservatives (allowed)' for restrictions.
X Creosote Prohibited.
A Dust suppressants
(allowed)
 Water, lignin sulphonates and non-synthetic plant, mineral, or animal based materials. See 'Lignin sulphonates'.
X Dust suppressants
(prohibited)
 All materials for dust suppression not specifically allowed are prohibited including, but not limited to asphalt and all petroleum products.
A Irrigation products
 Polyethylene (Poly) and polyvinyl chloride (PVC) products are allowed for use in ornamental landscapes.
A Lignin sulphonates Lignosulphonic acid, calcium lignosulphate and sodium lignosulphate. Allowed as a dust suppressant. Ammonium lignosulphate is prohibited.
A Lignosulphonic acid Allowed as a dust suppressant or inert ingredient.
A Limestone Allowed where the resulting pH change of the soil has no or minimal negative impact on the environment.
X Pentachlorophenol Prohibited.
A Polyethylene (Poly) Allowed for irrigation systems in ornamental landscapes
A Polyvinyl chloride (PVC) Allowed for irrigation systems in ornamental landscapes
A Pressure treated lumber See 'Wood preservatives'
Copper chromium arsenate (CCA) lumber is prohibited as described in 'Arsenate treated lumber'. Creosote and pentachlorophenol treated lumbers are prohibited.
A Rock, natural Allowed.
A Sodium lignosulphate Allowed as a dust suppressant or inert ingredient.
A Sodium octaborate Allowed as wood preservatives. Only mined sources acceptable.
A Sodium tetraborate Allowed as wood preservative. Only mined sources acceptable.
A Wood preservatives
(allowed)
 Sodium octaborate and sodium tetraborate
X Wood preservatives
(prohibited)
 Copper chromium arsenate, creosote, and pentachlorophenol are prohibited.

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