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Quality Assurance Project Plan: Aladdin Plating Site Performance Groundwater Monitoring

Publication number Date Published
22-03-117November 2022
VIEW NOW Quality Assurance Project Plan: Aladdin Plating Site Performance Groundwater Monitoring (Number of pages: 42) (Publication Size: 1521KB)

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Author(s) Carnes, J.
Description The Aladdin Plating site is a former commercial electroplating facility in central Tacoma that operated from 1958 to 1994. After closure of the facility, metals associated with electroplating were identified in site soils and groundwater: chromium, lead, and nickel contaminated site soils, and chromium and nickel contaminated shallow groundwater.

Remediation began in the 2000s. Buildings were demolished, contaminated soils were removed, and eight monitoring wells were installed on the site property and surrounding area. In 2014, GeoEngineers conducted a Remedial Investigation and Feasibility Study (RI/FS) and developed a Cleanup Action Plan (CAP). In 2018, additional cleanup activities began. Five monitoring wells within the site were decommissioned and additional contaminated soils were removed. Following the 2018 excavation, two more monitoring wells were installed: one to replace a decommissioned well, and one downgradient of the former facility.

In February 2019, sampling by GeoEngineers confirmed that nickel concentrations far exceeding established cleanup levels persist in two monitoring wells, one located on the site property and one downgradient.

Ecology will continue to conduct semi-annual groundwater monitoring at the site to assess concentrations of nickel and chromium. This information will assist Ecology’s Toxics Cleanup Program in future decision making.
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Keywords Nickel, QAPP, groundwater monitoring, metals, quality assurance project plan, lead, chromium, Soil and Groundwater contamination
WATERSHED Water Resource Inventory Area 10 Puyallup-White
DATA Environmental Information Management (EIM) #FS1277