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MAINTENANCE HAZARDOUS WASTE MANUAL Chapter 5 Page 55 • Any size reduction of TWW must be conducted in a manner that prevents the uncontrolled release of hazardous constituents to the environment. and must conform to applicable worker health and :safety requirements. • All sawdust and particles from size reduction at a landfill must be captured and shall be managed as TWW. Pursmint to HSC § 25150.7 (i) all past DTSC (formerly the Department of Health Services) variances involving TW`W became inoperative on January 1. 2005. Tre;itcd Wood f'r(`JCI11Cl* Noll$ ta: alwil Per section 25150.7 (t). every wholesaler or retailer of treated wood and treated wood -like products in California is required to conspicuously post information concerning health risks posed by the products and precautions to be taken when A orkmg with treated wood. Notification shall be posted near the point of display of treated wood products used for fencing, decking. retaining walls, landscaping. outdoor structures and similar uses. Additional information may be found on the R,esterrn W, ood Preservers Institutes website in the section named Treated Wood in California The V %PI web address is i-nN-w.ww13iustrnrte.or2 or call 866-696-8315. • January 1. 2005 HSC y _5150.' (ei provides a conditional exemption from hazardous waste control laws for TWW. All preciously granted variances governing the management of TWW are inoperative and have no further effect. • July 1. 2005 The wood preserving industry shall, in consultation with DTSC, make uiformation available to handlers of TWW on how to manage and dispose the waste. HSC § 25150.7 (f)(2). • January= 1. 2007 (on or before) DTSC shall develop and adopt Alternative Management Standards (AMS) for TWW. HSC § 25150-71.0(;1) • January 1. 2007 The conditional exemption for TW%V, expires. T NV' is to be managed according to HSC. Division 20, Chapter 6.5. Hazardous Waste Control and DTSC" resulatious or the AIMS for TWNIV after this date. HSC § 25150.7 ('•)(2) • Jure 1. 2011 DTSC shall prepare and post on its web site a report determining compliance with the requirements of the TWIA, laic. HSC § 25150.7 (k). • January 1. 2013 The present requirements imposed by HSC § 25150.7 are repealed. unless another statute is enacted ARMS adopted pursuant to HSC' § :5150.7 (g) continue in full effect HSC' § 25150,7 (1). Frequently 1Atkcd Question,, Q 1. How can I tell if wood has been preserved? A, The following guidelines may help you determine if wood has been preserved • It may be identified by an ink stamp on the wood or an end tag on nen- material. these markings may still be visible on used material. • Most preserved wood used in structural or industrial applications will have been incised. a process whereby the wood is conditioned by making small closely spaced incisions on the full surface of the hood to enhance penetration of preservative into the material. The presence of these small cuts that resemble staple holt: indicates the material was treated with a preservative. • If the material has not been stained or dyed it may appear greenish if a copper based preservative was used. Industrial or transportation system wood may be dark brown in color with an oily appearance if it was preserved. • A fresh cut through the wood may reveal the penetration of the preservative into the outer quarter to one inch of the wood. depending upon the method of treatment and use. • Consider the type of project the wood vas used in. It may be treated material if it was in July 2018