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Ecology Publications & Forms |
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Ecology Publications & Forms |
| Title | Fourth Periodic Review: Mica Landfill |
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| DRAFT FOR PUBLIC COMMENT | Comment on this draft | ||||
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| VIEW NOW |
Fourth Periodic Review: Mica Landfill (Number of pages: 31) (Publication Size: 4076KB)
Note: Click here to view and print
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| Author(s) | Toxics Cleanup Program | ||||
| Description | The site was a landfill operated by local governments from 1972 to 1991. The landfill received about 65,000 tons of waste per year in the form of residential and municipal solid waste, dewatered sewage treatment plant sludge, demolition debris, and industrial wastes. In May 2026, we visited the site and found the monitoring wells, landfill cap, leachate ponds, and flare system in good condition. We also reviewed all groundwater monitoring data and found contamination is generally remaining at consistent levels in the same locations. Groundwater monitoring will continue to track cleanup progress and ensure remaining contamination does not move off-site. The deed restrictions prevent exposure to remaining contamination. Moving forward, we recommend: • Working with the lab to find a test method that can find vinyl chloride at levels below state standards • Testing for PFAS in monitoring wells near the landfill boundary • Submitting groundwater data into our Environmental Information Management system The comment period for the draft periodic review report is open August 31, 2026, 12 a.m. – Sept. 30, 2026, 11:59 p.m. |
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The mission of the Department of Ecology is to protect, preserve, and enhance Washington’s environment. To help us meet that goal, please consider the environment before you print or request a copy.
ADA Accessibility The Department of Ecology is committed to providing people with disabilities access to information and services by meeting or exceeding the requirements of the Americans with Disabilities Act (ADA), Section 504 and 508 of the Rehabilitation Act, and Washington State Policy #188. Visit Ecology’s website for more information. |
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| Contact | Sandra Treccani at 509-724-1205 or sandra.treccani@ecy.wa.gov | ||||
| Keywords | Periodic Review, Spokane County, metals, pesticides, superfund, petroleum, MTCA, hericides, solvents | ||||
| WEB PAGE | Mica Landfill cleanup site information | ||||
| CLEANUP SITE | Cleanup Site ID: 1020 |
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| FACILITY SITE | Facility Site ID: 633 |
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| RELATED PUBLICATIONS | Title:
Mica Landfill Site Mica Landfill |
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