23-105365-ANK SP_DOE_ No Action Certificate_12.27.23
Mr. Asgedom Woldetekle
AKA Family Care
29850 18th Avenue South
Federal Way, WA 98003
akafamilycare@gmail.com
11/7/2023
Re: ANK Short Plat – Arsenic and Lead Soil Sampling
Thank you for the opportunity to provide comments on the ANK Short Plat project. The project site includes one
0.85-acre King County Tax Parcel (3674400155), located at 29850 18th Ave South, Federal Way, Washington.
This project is located in an area predicted to have arsenic and lead in the soil because of the air emissions from
the old Asarco Smelter in Ruston, Washington (Figure 1).
Ecology recommended soil sampling on the property to evaluate the
levels of arsenic and lead in the soil prior to project commencement.
Ecology also recommended enrollment in the Voluntary Cleanup
Program (VCP) if lead or arsenic are found at concentrations above
the Model Toxics Control Act (MTCA) Method A cleanup levels.
On behalf of Mr. Woldetekle, Krazan and Associates (Krazan)
conducted soil sampling on the property on September 13, 2023
(Figure 2). Krazan followed the recommended guidance in the
Department of Ecology’s Tacoma Smelter Plume Model Remedies
Guidance.
In September 2023, a total of 31
discrete soil samples from 25
locations, were collected. Twenty-
five samples were collected from 0
to 6 inches below ground surface
(bgs), six samples were collected
from 6 to 12 inches bgs. One
composite duff sample was collected from the site.
Figure 1. Vicinity Map
Project
Krazan submitted the soil samples to Libby Environmental Laboratory in Olympia, Washington, and Onsite
Environmental, Inc., in Redmond, Washington for an analysis of arsenic and lead concentrations with an
Environmental Protection Agency (EPA) Method 6010D. On behalf of Krazan, DMP Inc, submitted the report with
the results of soil sampling to Ecology1. Ecology reviewed the report and concluded that the average soil
concentrations were below the cleanup level of 20 milligrams per kilogram (mg/kg) for arsenic and 250 mg/kg for
lead (Table 1). Similarly, no samples exceeded the maximum allowable concentration for a single soil sample of
40 mg/kg for arsenic or 500 mg/kg for lead.
Sample Depth
(inches)
Arsenic mg/kg (EPA 6010D) Lead mg/kg (EPA 6010D)
Minimum Maximum Minimum Maximum
0-6 soil <11.0 18.0 <5.4 70
6-12 soil <11.0 <11.0 24 51
Duff (one sample) <12 <5.8
MTCA Levels 40 500
Ecology does not recommend this property enter the Voluntary Cleanup Program. No soil remediation for the
contamination associated with the Tacoma Smelter Plume is needed for this property.
Please note, this is not a “No Further Action” determination for the property since the property was not
enrolled into the VCP with Ecology.
1 Krazan & Associates, Inc. Letter Report for Soil Sampling ANK Short Plat – Soil Sampling, October 3, 2023.
Table 1. Summary of Soil Sampling
Figure 2. Locations of Soil Sampling
Diana Ison
Technical Assistance Coordinator
Toxics Cleanup Program
Southwest Region Office
Washington State Department of Ecology
diana.ison@ecy.wa.gov
Phone: 360-999-9593