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Construction, demolition and land clearing (CDL) wastes are particular types of solid (but non-dangerous) waste.
Solid waste means any waste that is not a product. Construction and demolition wastes, land clearing wastes, industrial wastes, sewage and garbage are examples of solid waste. The Department of Ecology's Solid Waste Program and local health departments regulate solid waste disposal.
Ecology's Solid Waste regulation was changed from Chapter 173-304 WAC to Chapter 173-350 of the Washington Administrative Code (referred to as the WAC) and became effective on Feb. 10, 2003. Municipal Solid Waste Landfills are still regulated under Chapter 173-351 WAC. Refer to Chapter 173–350 WAC for the actual Solid Waste regulations. A hard copy of Chapter 173-350 WAC is also available by calling (360)407-6038.
The new rule provides for two types of non-municipal solid waste landfills, inert waste landfills and limited purpose landfills. “Inert waste” is defined as solid waste that meets the criteria for inert waste in Chapter 173-350-990. Inert landfills may only manage concrete, asphalt, masonry, ceramics, glass, aluminum, and stainless steel. In order for other materials to be considered inert, they must meet the criteria. These types of material do not pose any significant environmental risk.
Limited purpose landfills are available to accept many other types of wastes including industrial waste, demolition waste, problem waste, and wood waste. Design criteria for limited purpose landfills are performance based, subject to location standards, design and operating criteria, ground water monitoring, and financial assurance. Limited purpose landfill design specifications may often include a liner and leachate collection system.Land clearing wastes includes such material as rocks and soil, vegetation, and wood from trees and shrubs that have been removed from a job site before construction begins. It is recommended that woody debris go to a recycling facility for composting or made into mulch. The only acceptable disposal options (other than recycling) for either land clearing or plaster wastes is in a limited purpose landfill, incinerator, or municipal solid waste landfill regulated under Chapter 173-351 WAC.
“Inert waste” is defined as solid waste that meets the criteria for inert waste in WAC 173-350-990."Industrial solid wastes" means solid waste generated from manufacturing operations, food processing, or other industrial processes). (Solid Waste Regulations, WAC 173-350-100
Woodwastes are another category of non-demolition waste. "Woodwaste means solid waste consisting of wood pieces or particles generated as a by-product or waste from the manufacturing f wood products, handling and storage of raw materials and trees and stumps. This includes but is not limited to sawdust, chips, shavings, bark, pulp, hog fuel, and log sort yard waste, but does not include wood pieces or particles containing chemical preservatives such as creosote, pentachlorophenol, or copper-chrome-arsenate." (Solid Waste Regulations, WAC 173-304-100 (91)).
Local health departments permit Washington State's solid waste facilities. Landfilling is the basic method of disposal for construction, renovation, and demolition solid wastes. Disposal options for these wastes are municipal solid waste, woodwaste, limited purpose and inert/demolition landfills.
Lists of solid waste disposal facilities are found on the following county web sites. Not all counties provide this information at this time.
Dangerous or hazardous wastes are wastes that are a danger or hazard to people or the environment. The Washington State Department of Ecology regulates the management of dangerous waste through the Hazardous Waste and Toxics Reduction Program.
Ecology does not regulate products. Usable left over paint, glue, caulking compound, etc. left by a contractor for the property owner's future use are not considered wastes if they are re-used or recycled.
Contractors should use the job site's own RCRA Site ID Number to manifest and dispose of regulated wastes, not the contractor's RCRA Site ID Number.
The Department of Ecology Hazardous Waste and Toxics Reduction Program regulates dangerous waste disposal by medium and large quantity generators. Regulated generators (MQGs and LQGs) must make sure that their dangerous wastes are sent to one of the following:
Public Works Sewer Departments are local listed in the local phone book under City or County Government.
For more information about Universal Waste Disposal refer to:
Universal Waste Rule for Batteries and Mercury Containing Thermostats, July 2000, Ecology Fact Sheet 98-407
Universal Waste Rule for Dangerous Waste Lamps, June 2000, Ecology Focus Sheet 00-04-020.
Ecology 's Hazardous Waste and Toxics Reduction Program and local Health Departments regulate dangerous waste disposal by small quantity generators (SQGs). SQGs must either treat or dispose of their dangerous waste in an on-site facility, or ensure delivery to an off-site facility, either of which, if located in the U.S., is one of the following:
Refer to the List of Moderate Risk Waste Coordinator Contacts from Hazardous Waste and Toxics Reduction Publications on the Department of Ecology's website at http://www.ecy.wa.gov/biblio/0007013.html
Refer to the List of Municipal Solid Waste Landfills adapted from Solid Waste in Washington, 12th Annual Status Report, March 2004, Solid Waste and Financial Assistance Program, Ecology Publication #03-07-019.
See WAC 173-303-070 Exit Ecology for the current Small Quantity Generator waste management requirements.
For more information on Ecology's dangerous waste disposal requirements, call a Hazardous Waste Specialist at your nearest regional office at one of the numbers listed below.
Regional telecommunications devices for the deaf (TDD) numbers are