Dames & Moore, 1999 - USDA Forest Service

MEMORANDUM
@ Date: December 8. 1998
To: Rik Langendoen, Project Manager
From: Karen Mixon, QNQC Manager \b\
Subject: Summary Data Quality Review
Holden Mine Remedial Investigation Phase Ill
Lagoon Soil Sample Data, Fall 1998
Dames & Moore Job #17693-005-019
The summary data quality review of 13 soil samples collected from October 14 through 15, 1998
has been completed. The samples were analyzed at the Analytical Resources, Incorporated (ARI)
laboratory in Seattle, Washington for metals by EPA Method 6010A, (cadmium, copper, and lead). In
addition, samples were analyzed for total petroleum hydrocarbons (diesel and heavier than diesel range)
by Washington State Department of Ecology TPH methods. The analyses were performed in accordance
with the methods specified in €PA Test Methods for Evaluating Solid Waste, SW-846, January 1995,
and Washington State Department of Ecology Total Petroleum Hydrocarbons Methods, April 1992. A
validation package containing method associated QAIQC data and sample data was provided by the
laboratory. The following samples are associated with laboratory work order ARI# Y964:
Sample I.D. ARI Sample # Analvses Requested
DMLG-4-2
DMLG-4-4
@ DMLG-2-2
Y964A
Y964B
Y964C
Cadmium, Copper, Lead, VVTPH-D ext
Cadmium, Copper, Lead, WTPH-D ext
Archive
DMLG-2-4
DMLG-1-surface
Y964D
Y964E
Cadmium, Copper, Lead, WTPH-D ext
Archive
DMLG-5-2 Y 964 F Cadmium, Copper, Lead, VVTPH-D ext
DMLG-1-2 Y964G Cadmium, Copper, Lead, WTPH-D ext
DMLG-1-4 Y 964 H Cadmium, Copper, Lead, WTPH-D ext
DMLG-3-2 Y9641 Cadmium, Copper, Lead, WTPH-D ext
DMLG-3-4 Y964J Cadmium, Copper, Lead, WTPH-D ext
DMLG-5-4 Y964K , Cadmium, Copper, Lead, WTPH-D ext
DMLG-2-5 Y964L Archive
DMLG-2-7 % Y964M Cadmium, Copper, Lead, WTPH-D ext
1
The following comments refer to ARl's performance in meeting quality control specifications
described in the EPA documents "EPA Test Methods for Evaluating Solid Waste, SW-846", January
1995, "USEPA Contract Laboratory Program (CLP) National Functional Guidelines for Inorganic Data
Review", February 1994, and 'USEPA Contract Laboratory Program (CLP) National Functional
Guidelines for Organic Data Review", February 1994, and Washington State Department of Ecology
Total Petroleum Hydrocarbons Methods, April 1992, and the Quality Assurance Project Plan (QAPP)
prepared for the Phase Ill Remedial Investigation referenced in an addendum (August 28, 1998) to the
Phase Ill Sampling and Analysis Plan.
The report is divided into subsections based on type of analyses performed
Metals
Samples were prepared in the laboratory using EPA Method 3050. Samples were analyzed by
..:@ ICP (EPA Method 6010A).
DAMES & MOORE