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Quality Assurance Project Plan: County Construction Recyclers Landfill Groundwater Assessment Monitoring

Publication number Date Published
22-03-115November 2022
VIEW NOW Quality Assurance Project Plan: County Construction Recyclers Landfill Groundwater Assessment Monitoring (Number of pages: 45) (Publication Size: 1026KB)

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Author(s) Daiber, E.
Description The County Construction Recyclers (CCR) landfill, located in Everson, Washington, accepted construction and demolition waste under Chapter 173-304 WAC. Currently, the closed facility is regulated under WAC 173-350-400 as a limited purpose landfill. The CCR landfill began operations in 1990, accepting inert and demolition waste as described in Chapter 173-304 WAC and Whatcom County Code 24.08 Inert and Demolition Waste Rules and Regulations. The eastern and western portions of the CCR landfill were closed around 1997 and 2008, respectively, with low permeability caps and soil layers seeded with grass.

An interim leachate collection system was developed. The collected leachate was hauled to a publicly owned treatment works (POTWs) for pre-treatment and disposal until a temporary permit was rule-authorized in July 2000 to the CCR landfill for discharge of treated industrial wastewater to groundwater at spray fields near the landfill.

The leachate in groundwater attributable to the landfill may be monitored using monitoring wells and surface water locations on site. For this study’s objectives, monitoring wells upgradient, cross-gradient, and downgradient of the landfill, as well as surface water locations, will be sampled twice across the site. The Department of Ecology will collect chemical, metal, and nutrient contaminants, polycyclic aromatic hydrocarbons, volatile organic compounds (for well MW-21), and hydrocarbon ID samples from the monitoring sites.

The goal of the sampling is to (1) determine if contaminants of concern from the landfill leachate exceed (do not meet) water quality standards, (2) sample when the groundwater table is at its lowest and highest, and (3) confirm groundwater flow direction.
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Keywords QAPP, VOCs, volatile organic compounds (VOC), PAHs, petroleum contaminated groundwater, landfill, landfill recycling, county construction recyclers
WATERSHED Water Resource Inventory Area 01 Nooksack
DATA Environmental Information Management (EIM) #EDAI0002