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WAC 173-350-990 - Criteria for Inert Waste

Agendas and meeting notes from the advisory committee on section 990 for the WAC 173-350 rulemaking.

WAC 173-350-990 - Criteria for Inert Waste

Ecology staff lead: Dawn Marie Maurer 

Work group members
Name Organization
Bruce Chattin Washington Aggregates & Concrete Association
Andy Comstock Jurisdictional Health Authorities - West Side
Chris Martin WA Department of Ecology - WQ
John Bromley WA Department of Natural Resources
Jennifer Hill WA Department of Transportation
Zachary Fiorito Inert Waste Landfill Operators

Focus: Jurisdictional health authorities use the criteria for inert waste to determine if a waste qualifies for less stringent management standards. For instance, inert wastes qualify for piles standards exemptions, disposal in unlined landfills, and limited use as fill without a permit. These determinations are critical to protect human health and the environment, especially for water quality and fish health. Classification of a material can also affect management costs. 

Some inert wastes are listed, including cured structural concrete, paving asphalt, brick, ceramics, glass, aluminum, and stainless steel. Non-listed wastes should have comparable physical characteristics and risks as the listed wastes. The criteria for inert waste set out the parameters that a waste must meet to demonstrate a threshold of low risk and physical durability. The Department of Natural Resources uses different criteria for its surface mining reclamation program. In some cases, both sets of standards may apply. The process for making a determination can be slow, further delaying projects and escalating costs. 

A work group has been formed and is meeting with the goal of improving the efficiency and clarity of the classification process, while continuing to provide adequate levels of health and environmental protection. Please send questions to w2rrulemaking@ecy.wa.gov

Update: Due in large part to the inert criteria stakeholder workgroup input, and to the work of the Soil and Sediment Criteria and Use workgroup (new section 235), Ecology has concluded that revising Section 990 is not the best approach. Instead we will propose to eliminate this section of WAC 173-350. Inert wastes will be identified in the definitions section, and disposal criteria will be addressed in the appropriate landfill standards. Impacted soils will be addressed in the new section 235. 

Work group meetings and notes

April 29, 2015 10 a.m. - 1 p.m., Tacoma-Pierce County Health  July 30, 2014 1-4 p.m., Ecology Headquarters, Lacey  June 10, 2014 9-11 a.m., Ecology Headquarters, Lacey  April 23, 2014 1-4 p.m., Ecology Headquarters, Lacey