Fox Island Former Underground Storage Tank
Site VCP# SW1022
Fox Island, Washington
PREPARED FOR:
Scott and Tonya Barker
1048 Kamus Drive
Fox Island, WA 98333
PREPARED BY:
June 2012
5205 Corporate Center Ct. SE, Suite A
Olympia, WA 98503-5901
Phone: 360.570.1700
Fax: 360.570.1777
www.uspioneer.com
Fox Island Former Underground Storage Tank Site VCP# SW1022
JUNE 2012 TABLE OF CONTENTS
i
Table of Contents
SECTION 1 – INTRODUCTION ........................................................................................................................................ 1-1
1.1 Background .................................................................................................................................. 1-1
SECTION 2 – SITE INVESTIGATION CHRONOLOGY .......................................................................................................... 2-1
2.1 Other Relevant Events ................................................................................................................. 2-1
SECTION 3 – SITE CHARACTERIZATION ......................................................................................................................... 3-1
3.1 Soil ............................................................................................................................................... 3-1
3.2 Groundwater................................................................................................................................. 3-1
3.3 Comparison to cleanup levels ...................................................................................................... 3-2
3.4 Exclusion from Terrestrial Ecological Evaluation .......................................................................... 3-3
SECTION 4 – SOIL AND GROUNDWATER REMEDIATION .................................................................................................. 4-1
4.1 Soil Remediation .......................................................................................................................... 4-1
4.2 Groundwater Remediation ........................................................................................................... 4-1
SECTION 5 – CONCLUSIONS ......................................................................................................................................... 5-1
5.1 Soil ............................................................................................................................................... 5-1
5.2 Groundwater................................................................................................................................. 5-1
SECTION 6 – REFERENCES ........................................................................................................................................... 6-1
Tables
Table 2-1: Site Investigation and Remediation Chronology
Table 3-1: Statistical Summary of Soil Data Collected at the Fox Island Former UST Site
Table 3-2: Soil Data Collected at the Fox Island Former UST Site
Table 3-3: Statistical Summary of Groundwater Data Collected at the Fox Island Former UST Site
Table 3-4: Groundwater Data Collected at the Fox Island Former UST Site
Figures
Figure 1-1: Site Location
Figure 2-1: Tank and Soil Removal Areas
Figure 3-1: Soil Sample Locations
Figure 3-2: Groundwater Sample Locations
Figure 3-3: Terrestrial Ecological Evaluation Exclusion #3 Detail
Appendices
Appendix A: 2012 Confirmation Sampling Field Notes and Boring Logs
Appendix B: 2012 Confirmation Sampling Analytical Data
Appendix C: Terrestrial Ecological Evaluation Process - Primary Exclusions Form
Fox Island Former Underground Storage Tank Site VCP# SW1022
JUNE 2012 ACRONYMS AND ABBREVIATIONS
ii
Acronyms and Abbreviations
Acronym Explanation
bgs Below ground surface
CUL Cleanup level
DRO Diesel Range Organics
Ecology Washington State Department of Ecology
EMS Environmental Management Services, Inc.
ETS Environmental Tank Service
ft Feet
Golder Golder Associates
GW Groundwater
Langseth Langseth Environmental Services, Inc.
MTCA Model Toxics Control Act
NFA No Further Action
PCS Petroleum-containing soil
PIONEER PIONEER Technologies Corporation
ROW Right-of-way
Site Fox Island Former UST Site
UST Underground storage tank
VCP Voluntary Cleanup Program
WAC Washington Administrative Code
Fox Island Former Underground Storage Tank Site VCP# SW1022
JUNE 2012 SECTION 1 – INTRODUCTION
1-1
SECTION 1 – INTRODUCTION
PIONEER Technologies Corporation (PIONEER) has prepared this report on behalf of Scott and Tonya
Barker (the Barkers), to summarize and conclude the soil and groundwater investigations conducted at the
former underground storage tank (UST) site located at 612 9th Avenue FI, Fox Island, Washington (Site).
This report presents a chronological summary of the activities conducted at the Site, soil and groundwater
sampling results, and a comparison to cleanup levels. The purpose of this report is to provide the basis
for the Washington State Department of Ecology (Ecology) to determine that No Further Action (NFA) is
required at the Site.
1.1 Background
The Site is located on Fox Island, situated west of Tacoma, in Puget Sound, Washington (See Figure 1-1).
The Site is the location of a former convenience store and fueling station which operated between
approximately 1930 and 1980 (EMS 2010). The convenience store and fueling station had four USTs
located at the Site, all of which have been removed.
The potential for contamination at the Site was identified circa 1992 when the owner, Carl Forsbeck,
determined that USTs were likely still present in subsurface soils at the Site. The Site entered into
Ecology's Voluntary Cleanup Program (VCP) as the Barker Property Service Station, Site #SW1022 and
facility #4769939, in April 2009 under the direction of Environmental Management Services, Inc., (EMS)
and current owner Tonya Barker.
A variety of environmental investigation and removal activities have occurred at the Site since its
discovery, including removal of USTs, soil, and groundwater, multiple subsurface soil and groundwater
investigations, and multiple rounds of post-remediation groundwater monitoring.
PROJECT:
FIGURE NO.:
DWN:
DATE:
Corporate Remediation GroupAn Alliance between
DuPont and URS Diamond140 Cypress Station Drive
Houston, Texas 77090
0 0.50.25 Miles
June 2012
Site LocationFox Island Former Underground Storage Tank Site VCP# SW1022
Fox Island, Pierce County, Washington1-1
SM
Fox Island
Nisqually
Barker Property
Fox Island
Joint BaseLewis-McChord
Tacoma
Carr Inlet
Hale Passage
Fox Island Former Underground Storage Tank Site VCP# SW1022
JUNE 2012 SECTION 2 – SITE INVESTIGATION CHRONOLOGY
2-1
SECTION 2 – SITE INVESTIGATION CHRONOLOGY
PIONEER obtained copies of relevant reports and documents from the Barkers prior to conducting a soil
and groundwater confirmation sampling investigation at the Site. Historical reports and maps were
reviewed in order to understand the Site history. A Site investigation/remediation timeline was
determined, as shown below. The media sampled is in parentheses following the name of each
investigation.
Notes:
ETS=Environmental Tank Service. ROW=Right-of-way. EMS = Environmental Management Services. GW=Groundwater
A chronological account of the investigations and removal actions conducted at the Site, the purpose of
each investigation, the media sampled, and the number of samples is presented in Table 2-1. Figure 2-1
presents the areas of the Site where removal actions were conducted. In addition, other events relevant to
the Site investigation and remediation are described in the following section.
2.1 Other Relevant Events
December, 2001 - After the Langseth Environmental (Langseth) report was issued, Mr. Carl
Forsbeck (property owner at the time) informed Ecology that he deeded the ROW over to Pierce
County and was not inclined to pursue further cleanup in the roadway (Ecology 2008).
February/March, 2004 - Pierce County Department of Public Works Transportation Services
contracted Golder Associates (Golder) to address the potential for contamination in the Pierce
County ROW. During a Site meeting, Ecology informed Mr. Forsbeck of the need to remove a
hydraulic hoist in the northwest corner of the Site. Ecology also coordinated with Golder
regarding the subsurface investigations planned in the Pierce County ROW (Ecology 2008).
June-September, 2005 - Ownership of the Site changed twice. Mr. Forsbeck sold the Site to
Fox Island Former Underground Storage Tank Site VCP# SW1022
JUNE 2012 SECTION 2 – SITE INVESTIGATION CHRONOLOGY
2-2
realtor Michael Diaz. Mr. Diaz then sold the property to the Barkers. Following the property sale
from Mr. Diaz, Ecology contacted the Barkers to notify them that Site cleanup and remediation
efforts should be continued. The Barkers were unaware of contamination being present at the
Site, stating that such information was not included in the disclosure statement during the
property sale from Mr. Diaz (Ecology 2008). Ecology then provided the Barkers with copies of
the Don Golden, Langseth Environmental, and Golder Associates reports.
March, 2006 - Mr. Diaz had EMS provide a soil remediation work plan to Ecology which
described excavation of petroleum-containing soil (PCS) in the northwest corner of the Site and
dewatering petroleum-impacted groundwater (Ecology 2008).
July/August, 2006 - EMS verbally communicated to Ecology that approximately 212 tons of PCS
were excavated and removed from the northwest corner of the Site. EMS described the
excavation as being 30’ wide by 50’ long, and of variable depth. An outline of the soil
excavation is presented in the 2009 EMS Subsurface Investigation report (EMS 2009). A 500-
gallon UST was unexpectedly encountered and removed along with the PCS. Approximately 500
gallons of petroleum-impacted groundwater was pumped and removed from the northwest corner
of the Site following the remedial excavation. Future monitoring was proposed for the three on-
Site groundwater monitoring wells (MW-2, MW-3, and MW-41) which were installed following
the excavation activities (Ecology 2008). The soil and groundwater remediation activities were
documented in a report prepared for Mr. Diaz. Mr. Diaz has not made the report available to
Ecology or the Barkers.
1 Following the January and November 2007 monitoring events, the on-site well names were revised. MW1 became MW3,
MW2 became MW4, and MW3 became MW2 (EMS 2010). This report identifies the wells using the updated names. MW4 was
installed by EMS in August, 2010, in the center of the 2006 remediation area.
PROJECT:
FIGURE NO.:
DWN:
DATE:
Corporate Remediation GroupAn Alliance between
DuPont and URS Diamond140 Cypress Station Drive
Houston, Texas 77090
0 5025 Feet
June 2012
Tank and Soil Removal AreasFox Island Former Underground Storage Tank Site VCP# SW1022
Fox Island, Pierce County, Washington2-1
SM
LegendBarker Property Boundary
Excavation Boundaries2004 Hoist Removal Area2006 Excavation2009 Confirmation Excavation
Fox Island
Nisqually
Notes:
Excavation boundaries are approximate.
Location data was unavailable or insufficient for the 1992 Don Golden Co UST removal. Therefore, it is not included on this figure.
Barker Property
Joint BaseLewis-McChord
Tacoma
Fox Drive FI
Puget Sound
FormerFerry Dock
Pierce CountyRight-of-Way
9th Ave FI
Table 2-1: Site Investigation and Remediation Chronology
Activity Category Purpose Media Sampled Samples Soil GW
1992
Don Golden Underground Storage
Tank Removal
Remediation and Characterization
Two underground storage tanks (USTs) were removed from the site. A 1,000-gallon tank in
northwest corner of the site was suspected to contain gasoline and a 550-gallon tank was
suspected to contain waste oil or fuel oil.
Soil
7 soil samples collected:
-6 collected from property boundary
perimeter.
-1 collected from excavated soil stockpile.
7 0
2001
Langseth Environmental Service
Subsurface Investigation
CharacterizationFour direct-push borings were advanced to sample soil and groundwater to determine the
post-excavation soil constituent concentrations. Soil and Groundwater
4 direct-push borings advanced, soil and groundwater
collected from each boring:
-4 soil samples collected from northwest
corner of site.
-4 groundwater samples collected from
northwest corner of site.
4 4
2004
Environmental Tank Service Hydraulic
Hoist Removal
Remediation and Characterization
The hydraulic hoist and hydraulic fluid UST located in the northwest corner of the site,
proximate to the former gasoline underground storage tank, were removed. Soil and
groundwater samples were collected to determine post-excavation constituent
concentrations.
Soil and Groundwater
1 soil and 1 groundwater sample collected:
-1 soil sample collected from bottom of
excavation footprint.
-1 groundwater sample collected from water
present in bottom of excavation footprint.
1 1
2005
Golder Associates Pierce County Right-
of-Way Subsurface Investigation.
CharacterizationSubsurface investigation in area hydraulically downgradient of the site in Pierce County Right-
of-Way to assess the posibility of off-property constituent migration from the site. Soil and Groundwater
6 hollow-stem auger borings advanced:
-9 soil samples collected from the 6 borings
-MW1, MW2B, and MW3 installed as
monitoring wells, and sampled for groundwater.
6 direct-push borings advanced:
-13 soil samples collected from the 6 borings.
-3 groundwater samples collected from 3 of
the borings.
22 6
2005
Environmental Management Services
(EMS) Subsurface Investigation
CharacterizationSubsurface investigation consisting of 6 test pits was conducted in northwest corner of site to
characterize constituents in soil related to former underground storage tanks.Soil and Groundwater
6 test pits dug in northwest corner of site:
-6 soil samples collected from 4 of the test pits.
-2 groundwater samples collected from 2 of
the test pits.
6 2
2006
EMS Soil Excavation and Groundwater
Removal
Remediation and Characterization
212 tons of petroleum-containing soils were excavated and removed from the northwest
corner of the site. A fourth UST was encountered and removed. 500 gallons of petroleum-
containing groundwater were pumped and removed from the northwest corner of the site.
2007
EMS Groundwater MonitoringCharacterization
On-site groundwater monitoring wells were installed in the northwest corner of the site, in and
around the area excavated in 2006. Wells were sampled in January 2007 and November
2007.
Groundwater
6 groundwater samples collected:
-3 groundwater samples collected from on-site
monitoring wells MW-2, MW-3, and
MW-4 sampled in January 2007.
-3 groundwater samples collected from on-site
monitoring wells MW-2, MW-3, and
MW-4 sampled in November 2007.
0 6
2009
EMS Subsurface Investigation and
Remediation
Remediation and Characterization
Test-pits were excavated to straddle the 2006 excavation boundary, and to confirm that
constituents in soil were removed during 2006 excavation. An additional 20 cubic yards of
petroleum-containing soil was excavated and disposed of at Land Recovery, Inc.
Soil
6 test pits dug in northwest corner of site:
-10 soil confirmation samples collected from
test pit walls and bottoms following 2006
excavation.
-2 soil confirmation samples collected from
over-excavated area.
12 0
2010
EMS Groundwater MonitoringCharacterization
On-site groundwater monitoring wells are located in the northwest corner of the site, in and
around the area excavated in 2006.Groundwater
3 groundwater samples collected:
-On-site monitoring wells MW-2, MW-3, and
MW-4 sampled in November 2010.
0 3
2012
PIONEER Technologies Corporation
Confirmation Sampling
CharacterizationDowngradient monitoring wells were sampled to assess the potential for off-property
migration. Soil samples were collected to confirm that soil removal activities were adequate.Soil and Groundwater
3 groundwater samples collected:
-Off-site monitoring wells in Pierce County
Right-of-Way (MW1, MW2B, MW3) sampled.
4 soil samples collected:
-Confirmation samples collected from locations
in northwest corner of site where historical
constituent exceedances were observed.
4 3
Details unavailable.
Fox Island Former Underground Storage Tank Site VCP#SW1022
Page 1 of 1
Fox Island Former Underground Storage Tank Site VCP# SW1022
JUNE 2012 SECTION 3 – SITE CHARACTERIZATION
3-1
SECTION 3 – SITE CHARACTERIZATION
3.1 Soil
Soil samples have been collected from test pits, geoprobe borings, hollow-stem auger borings, and
discrete grab samples at the Site and in the adjacent Pierce County ROW. Figure 3-1 presents the sample
locations and Table 3-1 summarizes the constituents analyzed, the number of samples, and the minimum
and maximum concentrations. Table 3-2 presents analytical results for all samples collected at the Site.
Historical maps did not present a reference scale; therefore sample locations were incorporated into
Figure 3-1 using GIS georeferencing techniques. All historical locations presented are approximate. The
following subsections provide physical and chemical characteristics of soils at the Site.
3.1.1 Physical Characterization
3.1.1.1 Native Soil
Soils encountered at the Site and in the adjoining Pierce County ROW generally consisted of a shallow
sand unit extending from 3 to 5 feet (ft) below ground surface (bgs). From 5 to 9 ft bgs, a sandy, silty
plastic clay unit with intermixed sand and gravel layers was observed. Beneath the deeper clay unit,
compacted sand and gravel (glacial till) was observed (Langseth 2001; Golder 2005; EMS 2005).
3.1.1.2 Fill Soil
Soils encountered at the Site in areas which underwent historic excavation and fill consisted of generally
uniform fine to medium light brown to grey sands, with small amounts of intermixed gravel and clay
(EMS 2009; PIONEER 2012). Boring logs from the 2012 PIONEER sampling event are presented in
Appendix A.
3.1.2 Chemical Characterization
Table 3-1 presents a statistical summary of the soil data collected at the Site. As shown in the table,
benzene, diesel, ethylbenzene, gasoline, heavy oil, lead, toluene, and xylenes have been detected in soil at
the Site. All other constituents sampled were not detected. The types of constituents detected in soil, the
general depth at which those constituents were detected (2-6 ft bgs), and the location of the detections is
consistent with a release of petroleum products to soil from leaking underground storage tanks.
3.2 Groundwater
Groundwater samples have been collected during investigations at the Site from test pits, temporary
monitoring wells in direct-push borings, and groundwater monitoring wells. Figure 3-2, Table 3-3, and
Table 3-4 present the locations and analytical data for the historical groundwater test-pit and monitoring
well sampling locations. Historical maps did not present a reference scale; therefore sample locations
were incorporated into Figure 3-2 using GIS georeferencing techniques. All historical locations presented
are approximate.
The following subsections provide physical and chemical characteristics of groundwater at the Site.
Fox Island Former Underground Storage Tank Site VCP# SW1022
JUNE 2012 SECTION 3 – SITE CHARACTERIZATION
3-2
3.2.1 Physical Characterization
Groundwater at the Site is relatively shallow and varies in depth across the Site and in the Pierce County
ROW. Depth to groundwater observed in monitoring wells is generally in the 10-20 ft bgs range,
although groundwater around MW1 is likely a perched layer at 2-6 ft bgs (Golder 2005; EMS 2010;
PIONEER 2012).
Low-flow groundwater sampling of the Pierce County ROW wells and on-Site wells showed that most of
the wells exhibit slow recharge rates (EMS 2010, PIONEER 2012).
Groundwater flow is presumed to be in a northeasterly direction, based on the water levels observed in the
3 groundwater monitoring wells in the Pierce County ROW (Golder 2005). This is consistent with
expected Site groundwater flow direction toward the Puget Sound, approximately 150 ft to the northeast.
3.2.2 Chemical Characterization
Table 3-3 presents a statistical summary of the groundwater data collected at the Site. As shown in the
table, gasoline, diesel, heavy oil, benzene, toluene, ethylbenzene, xylenes, lead, barium and chromium
have been detected in groundwater at the Site. All other constituents sampled were not detected.
3.3 Comparison to cleanup levels
3.3.1 Soil
Washington's Model Toxics Control Act (MTCA) identifies soil Cleanup Levels (CULs) based on
different types of land use. Use of MTCA Method A Soil CULs is appropriate at the Site since; (1) the
types of common chemicals detected are expected based on the Site's history and former presence of
USTs; (2) land use at and surrounding the Site is mixed residential (i.e., unrestricted), and; (3) the Site
cleanup actions are consistent with Ecology's definition of a "routine cleanup action" as described in
Washington Administrative Code (WAC) 173-340-200 (Ecology 2007).
Table 3-2 presents soil data collected at the Site compared to MTCA Method A Soil CULs. Samples
which detected constituents at concentrations above MTCA soil CULs are highlighted in yellow.
Gasoline, benzene, toluene, and xylenes were detected in at least one sample at concentrations exceeding
MTCA Method A Soil CULs. Ethylbenzene, diesel, heavy oil and lead, were detected but, the maximum
concentration was below Method A CULs. Site activities conducted to address MTCA Method A Soil
CUL exceedances are described in Section 4.
3.3.2 Groundwater
MTCA Method A Groundwater CULs have been used previously by other investigators to evaluate Site
data. Use of Method A Groundwater CULs is based on the assumption that groundwater at the Site is
potable and will be used as a drinking water source. Potable groundwater is defined under WAC 173-
340-720(2) as being a source or potential source for drinking water and/or a beneficial use. An alternative
groundwater CUL would be more appropriate than Method A CULs, since (1) groundwater at the Site
does not serve as a current drinking water source; (2) groundwater yield at the Site is not sufficient to
Fox Island Former Underground Storage Tank Site VCP# SW1022
JUNE 2012 SECTION 3 – SITE CHARACTERIZATION
3-3
satisfy the well construction requirements in WAC 173-160-161(3), and; (3) the Site is proximate to
surface water that is not suitable as a domestic water supply (WAC 173-340-720(2)(d)) (Puget Sound).
However, groundwater constituent concentrations were compared to the default Method A CULs to
complete a preliminary evaluation.
Table 3-4 presents groundwater data collected at the Site compared to MTCA Method A Groundwater
CULs. Samples which detected constituents above MTCA Method A Groundwater CULs are highlighted
in yellow. Benzene, diesel, gasoline, and heavy oil were detected in at least one sample at concentrations
exceeding MTCA Method A Groundwater CULs. Barium, chromium, ethylbenzene, lead, toluene, and
xylenes were detected in groundwater but, at concentrations less than Method A CULs.
Site activities conducted to address MTCA Method A Groundwater CUL exceedances are described in
Section 4.
3.4 Exclusion from Terrestrial Ecological Evaluation
The Terrestrial Ecological Evaluation (TEE) process is not applicable since there is not at least 1.5 acres
of contiguous undeveloped land (suitable habitat) within 500 feet of the Site and no constituents listed on
the hazardous substances listed in WAC 173-340-7491(1)(c)(ii) are present. The TEE Primary Exclusion
Evaluation form is presented in Appendix C and described below.
As shown in Figure 3-3, the Site is located in a well-developed residential area of Fox Island. Small,
isolated, undeveloped land parcels are present within 500 feet of the Site. However, the small, isolated,
undeveloped land parcels are not contiguous and total less than 1.5 acres satisfying part 1 of Exclusion #3
as described in WAC 173-340-7491(1)(c)(i).
Cleanup Sites in Ecology's Facility/Site database were queried to locate adjacent Sites which may have
contaminants present on the Hazardous Substances list. The closest Site was approximately 1,000 feet
from the subject Site, outside of the 500 foot buffer. Constituents present on the Hazardous Substances
list are not within 500 feet of the Site and satisfy part 2 of Exclusion #3.
B4
B3
B2
B1
S9S8
S7
S6
S5
S4S3
S2
S1
B2B1
S12
S11
S10
TP4
TP3
TP2TP1
MW3
MW1MW2
GP6
GP5
GP4
GP3
GP2
GP1
S-2
TP-3
TP-2
S-1
PROJECT:
FIGURE NO.:
DWN:
DATE:
Corporate Remediation GroupAn Alliance between
DuPont and URS Diamond140 Cypress Station Drive
Houston, Texas 77090
0 2010Feet
June 2012
Soil Sample LocationsFox Island Former Underground Storage Tank Site VCP# SW1022
Fox Island, Pierce County, Washington3-1
SM
LegendBarker Property Boundary
Soil Sample LocationsLangseth 2001Golder 2005EMS 2005EMS 2009PIONEER 2012
Excavation Boundaries2004 Hoist Removal Area2006 Excavation2009 Confirmation Excavation
Fox Island
Nisqually
Notes:EMS: Environmental Management ServicesGolder: Golder AssociatesLangseth: Langseth Environmental ServicesPIONEER: PIONEER Technologies Corporation
Sample locations and excavation boundaries are approximate. PIONEER 2012 samples werelocated using a GPS.
Location data was unavailable or insufficient for the 1992 Don Golden Co UST removal soil samples (Sample #1 through Sample #7), and the 2004 Environmental Tank Service hydraulic hoist removal soil sample (S1-Hyd-2.0'). Therefore, they are notincluded on this figure.
Barker Property
Joint BaseLewis-McChord
Tacoma
Fox Drive FI
B4B3
B2
B1
TP4
TP1
GP4
GP3
GP2
MW-4
MW-3
MW-2
MW3
MW1 MW2B
PROJECT:
FIGURE NO.:
DWN:
DATE:
Corporate Remediation GroupAn Alliance between
DuPont and URS Diamond140 Cypress Station Drive
Houston, Texas 77090
0 5025 Feet
June 2012
Groundwater Sample LocationsFox Island Former Underground Storage Tank Site VCP# SW1022
Fox Island, Pierce County, Washington3-2
SM
LegendBarker Property Boundary
Groundwater Sample LocationsLangseth 2001Golder 2005EMS 2005
Monitoring WellsGolder 2005, PIONEER 2012EMS 2007, 2010
Excavation Boundaries2004 Hoist Removal Area2006 Excavation2009 Confirmation Excavation
Fox Island
Nisqually
Notes:EMS: Environmental Management ServicesGolder: Golder AssociatesLangseth: Langseth Environmental ServicesPIONEER: PIONEER Technologies Corporation
Sample locations and excavation boundaries are approximate. PIONEER 2012 samples werelocated using a GPS.
Location data was unavailable or insufficient for the 2004 Environmental Tank Service hydraulic hoist removal groundwater sample (S2-SW). Therefore,it is not included on this figure.
Barker Property
Joint BaseLewis-McChord
Tacoma
Fox Drive FI
GroundwaterFlow Direction
Puget Sound
0.4 Acres
0.2 Acres
0.1 Acres
PROJECT:
FIGURE NO.:
DWN:
DATE:
Corporate Remediation GroupAn Alliance between
DuPont and URS Diamond140 Cypress Station Drive
Houston, Texas 77090
0 200100Feet
June 2012
Terrestrial Ecological Evaluation Exclusion #3 DetailFox Island Former Underground Storage Tank Site VCP# SW1022
Fox Island, Pierce County, Washington3-3
SM
LegendBarker Property Boundary500 Ft BufferUndeveloped Land
Fox Island
Nisqually
Notes:
Terrestrial Ecological Evaluation Exclusion #3criteria is described in WAC 173-340-7491(1)(c).
BarkerProperty
Joint BaseLewis-McChord
Tacoma
Fox Drive FI
500 ft Buffer
Nearest cleanup site: 1,000 ft south
Table 3-1: Satistical Summary of Soil Data Collected at the Fox Island Former UST Site
Constituent
Number of
Samples
Number of
Detects
Frequency of
Detection
(%)
Minimum
Detect
(mg/kg)
Maximum
Detect
(mg/kg)
Benzene 42 6 14% 0.026 1.4
Diesel 39 4 10% 31 190
Ethylbenzene 42 9 21% 0.053 4.1
Gasoline 53 11 21% 6.0 605
Heavy Oil 39 5 13% 120 190
Lead 9 7 78% 1.5 6.5
Methyl tert-butyl ether 2 0 0% -- --
Mineral Oil 2 0 0% -- --
Toluene 42 8 19% 0.080 9.1
Xylenes (Total) 42 10 24% 0.050 9.5
Notes:
--: No Value
mg/kg: milligrams per kilogram
Fox Island Former Underground Storage Tank Site VCP#SW1022
Page 1 of 1
Table 3-2: Soil Data Collected at the Fox Island Former UST Site
Metals
Gasoline
(mg/kg)
Diesel
(mg/kg)
Heavy Oil
(mg/kg)
Mineral Oil
(mg/kg)
Benzene
(mg/kg)
Toluene
(mg/kg)
Ethylbenzene
(mg/kg)
Xylenes
(Total)
(mg/kg)
Methyl tert-
butyl ether
(mg/kg)
Lead
(mg/kg)
Sample #1 8 Characterization N/A 23 -- -- -- 0.050 U 0.24 0.18 0.92 -- 1.6
Sample #2 6 Characterization N/A 1.0 U -- -- -- 0.050 U 0.050 U 0.050 U 0.050 U -- 4.7
Sample #3 8 Characterization N/A 1.0 U -- -- -- 0.050 U 0.050 U 0.050 U 0.050 U -- 4.2
Sample #4 8 Characterization N/A 1.0 U -- -- -- 0.050 U 0.050 U 0.050 U 0.050 U -- 1.5
Sample #5 8 Characterization N/A 1.0 U -- -- -- 0.050 U 0.050 U 0.050 U 0.050 U -- 3.0
Sample #6 7 Characterization N/A 160 E -- -- -- 0.050 U 0.19 0.050 U 0.64 -- 6.5
Sample #7 0 Soil Stockpile N/A 380 E -- -- -- 0.050 U 0.21 0.25 0.74 -- 4.4
TP1 @ 2'-3' 2-3 Characterization B1 20 25 U 100 U -- 0.050 U 0.080 0.050 U 0.050 U 0.050 U --
TP2 @ 2'-3' 2-3 Characterization B2 10 U 20 U 40 U 40 U 0.020 U 0.050 U 0.050 U 0.050 U -- --
TP3 @ 9' 9 Characterization B3 6.0 -- -- -- 0.050 U 0.050 U 0.050 U 0.050 U 0.050 U 4.0 U
TP4 @ 4' 4 Characterization B4 10 U 20 U 40 U 40 U 0.020 U 0.050 U 0.050 U 0.050 U -- 5.0 U
S1-Hyd-2.0' 2 Characterization N/A -- -- -- -- -- -- -- --
MW1S1 3 Characterization MW1 16 31 120 -- 0.026 0.050 U 0.053 0.050 -- --
MW1S2 5-6.5 Characterization MW1 14 30 U 120 -- 0.032 0.048 U 0.12 0.17 -- --
MW1S3 6.5-8 Characterization MW1 5.6 U 34 58 U -- 0.020 U 0.056 U 0.056 U 0.056 U -- --
B2S2 6.5-8 Characterization B2 5.6 U 29 U 58 U -- 0.020 U 0.056 U 0.056 U 0.056 U -- --
B2S4 9.5-11 Characterization B2 5.1 U 30 U 60 U -- 0.020 U 0.051 U 0.051 U 0.051 U -- --
B1S1 5.5-7 Characterization B1 6.2 U 31 U 62 U -- 0.020 U 0.062 U 0.062 U 0.062 U -- --
B1S10 14 Characterization B1 5.6 U 30 U 60 U -- 0.020 U 0.056 U 0.056 U 0.056 U -- --
MW2S5 10-11.5 Characterization MW2 4.8 U 28 U 55 U -- 0.020 U 0.048 U 0.048 U 0.048 U -- --
MW3S13 19-20.5 Characterization MW3 6.3 U 29 U 59 U -- 0.020 U 0.055 U 0.055 U 0.055 U -- --
GP1S2 4-7 Characterization GP1 23 U 58 U 120 U -- -- -- -- -- -- --
GP1S4 8-12 Characterization GP1 26 U 64 U 130 U -- -- -- -- -- -- --
GP2S4 12-14.5 Characterization GP2 24 U 60 U 120 U -- -- -- -- -- -- --
GP3S2 4.5-5 Characterization GP3 26 U 120 240 -- -- -- -- -- -- --
GP3S4 8-12 Characterization GP3 22 U 54 U 110 U -- -- -- -- -- -- --
GP4S3 4-6 Characterization GP4 5.3 U 29 U 59 U -- 0.020 U 0.053 U 0.053 U 0.053 U -- --
GP4S4 6-7 Characterization GP4 24 U 61 U 120 U -- -- -- -- -- -- --
GP5S1 0.5-1.5 Characterization GP5 23 U 28 U 160 -- -- -- -- -- -- --
GP5S3 4-8 Characterization GP5 23 U 58 U 120 U -- -- -- -- -- -- --
GP5S4 8-9 Characterization GP5 5.7 U -- -- -- 0.020 U 0.057 U 0.057 U 0.057 U -- --
GP5S5 9-10 Characterization GP5 5.6 U -- -- -- 0.020 U 0.056 U 0.056 U 0.069 -- --
GP6S1 0.5-2.5 Characterization GP6 23 U 58 U 120 U -- -- -- -- -- -- --GP6S3 4-5 Characterization GP6 5.5 U -- -- -- 0.020 U 0.055 U 0.055 U 0.055 U -- --
TP1-12-18 1-1.5 Characterization TP1 20 U 50 U 100 U -- -- -- -- -- -- --
TP2-24-30 2-2.5 Characterization TP2 20 U 50 U 100 U -- -- -- -- -- -- --
TP2-48-50 4-4.25 Characterization TP2 605 50 U 100 U -- 0.61 9.1 4.1 9.5 -- --
TP3-24-30 2-2.5 Characterization TP3 568 50 U 100 U -- 1.4 6.0 3.2 7.1 -- --
TP3-70 6 Characterization TP3 20 U 50 U 100 U -- -- -- -- -- -- --
TP4-40 3.25 Characterization TP4 20 U 50 U 100 U -- -- -- -- -- -- --
2001
Langseth Environmental
Petroleum Hydrocarbons
190
2005
Golder Associates Pierce
County ROW Subsurface
Investigation
2005
EMS Subsurface Test Pit
Investigation
Sample IDReport Sample Type
Sample
Depth
(ft bgs)
2004
Environmental Tank Service
Soil removal associated with hydraulic lift removal(1)
1992
Don Golden Co UST Removal
Soil removal associated with UST removal(1)
Volatile Organic Compounds
Map ID
Fox Island Former Underground Storage Tank Site VCP#SW1022
Page 1 of 2
Table 3-2: Soil Data Collected at the Fox Island Former UST Site
Metals
Gasoline
(mg/kg)
Diesel
(mg/kg)
Heavy Oil
(mg/kg)
Mineral Oil
(mg/kg)
Benzene
(mg/kg)
Toluene
(mg/kg)
Ethylbenzene
(mg/kg)
Xylenes
(Total)
(mg/kg)
Methyl tert-
butyl ether
(mg/kg)
Lead
(mg/kg)
Petroleum Hydrocarbons
Sample IDReport Sample Type
Sample
Depth
(ft bgs)
1992
Don Golden Co UST Removal
Soil removal associated with UST removal(1)
Volatile Organic Compounds
Map ID
S1 4.5 Post Ex-Confirmation S1 94 50 U 250 U -- 0.090 0.65 1.0 4.9 -- --
S2 6-7 Post Ex-Confirmation S2 15 50 U 250 U -- 0.060 0.24 0.56 0.64 -- --
S3 3-4 Post Ex-Confirmation S3 2.0 U 50 U 250 U -- 0.020 U 0.020 U 0.020 U 0.060 U -- --
S4 4.5-5.5 Post Ex-Confirmation S4 2.0 U 50 U 250 U -- 0.020 U 0.020 U 0.020 U 0.060 U -- --
S5 7-8 Post Ex-Confirmation S5 2.0 U 50 U 250 U -- 0.020 U 0.020 U 0.020 U 0.060 U -- --
S6 6-7 Post Ex-Confirmation S6 2.0 U 50 U 250 U -- 0.020 U 0.020 U 0.020 U 0.060 U -- --
S7 4-5 Post Ex-Confirmation S7 2.0 U 50 U 250 U -- 0.020 U 0.020 U 0.020 U 0.060 U -- --
S8 6.5-7.5 Post Ex-Confirmation S8 2.0 U 50 U 250 U -- 0.020 U 0.020 U 0.020 U 0.060 U -- --
S9 6.5-7.5 Post Ex-Confirmation S9 2.0 U 50 U 250 U -- 0.020 U 0.020 U 0.020 U 0.060 U -- --
S10 6.5-7.5 Post Ex-Confirmation S10 2.0 U 50 U 250 U -- 0.020 U 0.020 U 0.020 U 0.060 U -- --
S11 7-8 Post Ex-Confirmation S11 -- -- -- -- 0.020 U 0.020 U 0.030 0.060 U -- --
S12 7-8 Post Ex-Confirmation S12 -- -- -- -- 0.020 U 0.020 U 0.020 U 0.060 U -- --
TP-2 4.25 Post Ex-Confirmation TP-2 6.4 U -- -- -- 0.0031 U 0.0031 U 0.0031 U 0.0092 U -- --
TP-3 2.5 Post Ex-Confirmation TP-3 4.9 U -- -- -- 0.0027 U 0.0027 U 0.0027 U 0.0082 U -- --
S-1 5 Post Ex-Confirmation S-1 6.0 U -- -- -- 0.0029 U 0.0029 U 0.0029 U 0.0087 U -- --
S-2 7.5 Post Ex-Confirmation S-2 6.1 U -- -- -- 0.0030 U 0.0030 U 0.0030 U 0.0091 U -- --
30/100 2,000 2,000 4,000 0.03 7 6 9 0.1 250
Yes No No No Yes Yes No Yes No No
Notes:
: Analyte was detected and is below MTCA Method A Soil Cleanup Level
: Analyte was detected and is above MTCA Method A Soil Cleanup Level
: Soil and/or groundwater removal event
--: Sample was not analzyed for this analyte
ft bgs: feet below ground surface
mg/kg: miligrams per kilogram
N/A: Analytical report and/or sample map not available for review.
ROW: Right-of-way
U: Analyte was non-detect in sample
All results are presented as two significant figures, unless result is greater than 100
(3): From Washington Administrative Code (WAC) 173-340-740
(1): It is unclear whether or not soil removal events were conducted during these two reports, although it is possible.
MTCA Method A Soil Cleanup Level(2)
2012
PIONEER Subsurface
Characterization
2009
EMS Subsurface Test Pit
Investigation
2006 EMS Soil Excavation and Groundwater Removal Event - 212 tons of petroleum-containing soil excavated and removed from northwest corner of site. 500 gallons of groundwater pumped and removed.
2009 EMS Follow-up Soil Excavation and Removal Event - To address the exceedances in samples S1 and S2, 20 cubic yards of soil was removed. Samples S11 and S12 were collected from the follow-up
soil excavation sidewalls.
Is Maximum Detect Above MTCA Method A Soil Cleanup Level?
Fox Island Former Underground Storage Tank Site VCP#SW1022
Page 2 of 2
Table 3-3: Satistical Summary of Groundwater Data Collected at the Fox Island Former UST Site
Constituent
Number of
Samples
Number of
Detects
Frequency of
Detection
(%)
Minimum Detect
(µg/L)
Maximum Detect
(µg/L)
Arsenic 1 0 0% -- --
Barium 1 1 100% 0.096 0.096
Benzene 22 4 18% 6.2 60
Cadmium 1 0 0% -- --
Chromium 1 1 100% 0.030 0.030
Diesel 20 7 35% 71 11,000
Ethylbenzene 22 3 14% 3.8 190
Ethylene dibromide 4 0 0% -- --
Ethylene dichloride 4 0 0% -- --
Gasoline 24 5 21% 93 6,900
Heavy Oil 14 1 7% 11,000 11,000
Lead 8 3 38% 0.0025 0.032
Mercury 1 0 0% -- --
Methyl tert-butyl ether 4 0 0% -- --
Mineral Oil 7 0 0% -- --
Selenium 1 0 0% -- --
Silver 1 0 0% -- --
Toluene 22 4 18% 1.2 53
Xylenes (Total) 22 3 14% 10.0 600
Notes:
--: No Value
µg/L: micrograms per liter
Fox Island Former Underground Storage Tank Site VCP#SW1022
Page 1 of 1
Table 3-4: Groundwater Data Collected at the Fox Island Former UST Site
Gasoline
(µg/L)
Diesel
(µg/L)
Heavy Oil
(µg/L)
Mineral Oil
(µg/L)
Benzene
(µg/L)
Toluene
(µg/L)
Ethyl
benzene
(µg/L)
Xylenes
(Total)
(µg/L)
Methyl tert-
butyl ether
(µg/L)
Ethylene
dichloride
(µg/L)
Ethylene
dibromide
(µg/L)
Lead
(µg/L)
Arsenic
(µg/L)
Cadmium
(µg/L)
Mercury
(µg/L)
Barium
(µg/L)
Chromium
(µg/L)
Selenium
(µg/L)
Silver
(µg/L)
Test Pit B1 100 U 200 U 400 U 400 U 1.0 U 11 1.0 U 1.0 U -- -- -- 0.00050 U -- -- -- -- -- -- --
[email protected]' Test Pit B2 100 U 200 U 400 U 400 U 1.0 U 1.0 U 1.0 U 1.0 U -- -- -- 0.0044 0.0050 U 0.0010 U 0.00020 U 0.096 0.030 0.050 U 0.05 U
[email protected]' Test Pit B3 100 U -- -- -- 1.0 U 1.0 U 1.0 U 1.0 U -- -- -- 0.032 -- -- -- -- -- -- --
TP4-GW@4' Test Pit B4 6,400 -- -- -- 60 53 190 600 -- -- -- 0.0025 -- -- -- -- -- -- --
S2-SW Test Pit N/A -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
MW1GW1(2)
Monitoring Well MW1 2,950 260 U 410 U -- 6.2 6.4 41 85 0.20 U 0.20 U 0.0095 U 1.0 U -- -- -- -- -- -- --
MW2GW1 Monitoring Well MW2B 100 U 260 U 410 U -- 1.0 U 1.0 U 1.0 U 1.0 U -- -- -- -- -- -- -- -- -- -- --
MW3GW1 Monitoring Well MW3 100 U 260 U 410 U -- 1.0 U 1.0 U 1.0 U 1.0 U -- -- -- -- -- -- -- -- -- -- --
GP2GW1 Direct-Push GP2 100 U 250 U 400 U -- 1.0 U 1.0 U 1.0 U 1.0 U -- -- -- -- -- -- -- -- -- -- --
GP3GW1 Direct-Push GP3 100 U 250 U 400 U -- 1.0 U 1.0 U 1.0 U 1.0 U - -- -- -- -- -- -- -- -- -- --
GP4GW1 Direct-Push GP4 100 U 260 U 410 U -- 1.0 U 1.0 U 1.0 U 1.0 U -- -- -- -- -- -- -- -- -- -- --
TP1-W Test Pit TP1 200 U 200 U 400 U 400 U -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
TP4-W Test Pit TP4 200 U 6,240 40 U 40 U -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
MW-2 Monitoring Well MW-2 N/A 630 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
MW-3 Monitoring Well MW-3 6,900 1,300 N/A N/A 58 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
MW-4 Monitoring Well MW-4 N/A 370 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
MW-2 Monitoring Well MW-2 N/A 71 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
MW-3 Monitoring Well MW-3 93 760 N/A N/A 13 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
MW-4 Monitoring Well MW-4 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
MW-2 Monitoring Well MW-2 50 U 50 U 100 U 50 U 1.0 U 1.0 U 1.0 U 2.0 U -- -- -- -- -- -- -- -- -- -- --
MW-3 Monitoring Well MW-3 50 U 50 U 100 U 50 U 1.0 U 1.0 U 1.0 U 2.0 U -- -- -- -- -- -- -- -- -- -- --
MW-4 Monitoring Well MW-4 50 U 50 U 100 U 50 U 1.0 U 1.0 U 1.0 U 2.0 U -- -- -- -- -- -- -- -- -- -- --
FI_MW1 Monitoring Well MW1 410 -- -- -- 1.0 U 1.2 3.8 10 1.0 U 1.0 U 0.0098 U 10 U -- -- -- -- -- -- --
FI_MW2B Monitoring Well MW2B 50 U -- -- -- 1.0 U 1.0 U 1.0 U 3.0 U 1.0 U 1.0 U 0.0099 U 10 U -- -- -- -- -- -- --
FI_MW3 Monitoring Well MW3 50 U -- -- -- 1.0 U 1.0 U 1.0 U 3.0 U 1.0 U 1.0 U 0.0097 U 10 U -- -- -- -- -- -- --
800/1,000 500 500 500 5 1,000 700 1,000 20 5 0.01 15 5 5 2 No Value 50 No Value No Value
Yes Yes Yes No Yes No No No No No No No No No No No No No No
Notes:
: Analyte was detected and is below MTCA Method A Groundwater Cleanup Level
: Analyte was detected and is above MTCA Method A Groundwater Cleanup Level
: Soil and/or groundwater removal event
--: Sample was not analzyed for this analyte
N/A: Analytical report and/or sample map not available for review.
ROW: Right-of-way
µg/L: micrograms per liter
U: Analyte was non-detect in sample
All results are presented as two significant figures, unless result is greater than 100
(4): From Washington Administrative Code (WAC) 173-340-720
(2): A field duplicate was collected for this sample. Results shown for this sample are a combination of the sample and the field duplicate. If both samples were non-detect, the lower reporting limit is shown. If one sample was detected, detected value is
shown. If both samples were detected, the average is shown.
2007 - Jan
EMS Groundwater
Monitoring Event(3)
2007 - Nov
EMS Groundwater
Monitoring Event(3)
(3): Data from the January and November 2007 EMS groundwater monitoring events is only presented in the text of the November 2010 EMS groundwater monitoring event report (EMS 2010). All values presented in the 2010 report are also presented in
this table. The report also states that all other analytes analzyed were non-detect below the laboratory's reporting limits, although it unknown which analytes were analyzed.
2010
EMS Groundwater
Monitoring Event
(1): It is unclear whether or not soil removal events were conducted during these two reports, although it is possible.
MTCA Method A Groundwater Cleanup Level(4)
2012
PIONEER GW
Monitoring Event
2009 EMS Follow-up Soil Excavation and Removal Event - To address the exceedances in samples S1 and S2, 20 cubic yards of soil was removed. Samples S11 and S12 were collected from the follow-up soil excavation sidewalls.
Is Maximum Detect Above MTCA Method A Groundwater Cleanup
Level?
2001
Langseth
Environmental
Soil removal associated with 1992 UST removal(1)
2004
Environmental Tank
Service
Soil removal associated with hydraulic lift removal(1)
2006 EMS Soil Excavation and Groundwater Removal Event - 212 tons of petroleum-containing soil excavated and removed from northwest corner of site. 500 gallons of groundwater pumped and removed.
11,000
2005
Golder Associates
Pierce County ROW
Subsurface
Investigation
2005
EMS Subsurface
Test Pit Investigation
Metals
Report Sample ID
Petroleum Hydrocarbons Volatile Organic Compounds
Sample Type Map ID
Fox Island Former Underground Storage Tank Site VCP#SW1022
Page 1 of 1
Fox Island Former Underground Storage Tank Site VCP# SW1022
JUNE 2012 SECTION 4 – SOIL AND GROUNDWATER REMEDIATION
4-1
SECTION 4 – SOIL AND GROUNDWATER REMEDIATION
4.1 Soil Remediation
MTCA Method A Soil CUL exceedances were observed at the Site. Four separate remedial actions were
undertaken to address these locations.
4.1.1 Don Golden UST Removal, 1992
Don Golden removed two USTs from the site in 1992. The larger 1,000 gallon tank was located in the
northwest corner of the Site and was suspected to contain gasoline. The smaller 550 gallon tank was
located near the former service station building, southeast of the 1,000 gallon tank. It was suspected to
contain heating or waste oil. Soil may have been removed with the tanks, although the amount is
unknown.
4.1.2 Environmental Tank Service Hydraulic Hoist Removal, 2004
ETS removed the hydraulic hoist and an associated hydraulic fluid UST from the northwest corner of the
Site. Soil may have been removed with the tanks, although the amount is unknown.
4.1.3 Environmental Management Services, 2006
EMS excavated and removed 212 tons of PCS from the northwest corner of the Site in 2006. This
excavation was designed to address impacted soils in the area where the 1,000 gallon gasoline UST and
hydraulic fluid UST were located. A 500-gallon UST was unexpectedly encountered and removed from
the excavation. Soil samples TP2 and TP3 (EMS 2005) had constituent concentrations above MTCA
Method A Soil CULs and were removed during this 2006 excavation work. Soils were transported off-
Site to Land Recovery, Inc. In 2012, confirmation samples were collected at locations TP2 and TP3 and
constituents were not detected confirming the adequacy of the soil removal activities.
4.1.4 Environmental Management Services, 2009
EMS conducted a sampling event in 2009 to confirm the effectiveness of the 2006 excavation and
removal action in the northwest corner of the Site. All samples collected from the perimeter of, and
within, the excavation boundary were below MTCA Method A Soil CULs, except for samples S1 and S2.
The area around samples S1 and S2 was over-excavated and the resulting 20 cubic yards of PCS was
transported off-Site to Land Recovery, Inc. Confirmation samples collected from the excavation
sidewalls were below MTCA Method A Soil CULS. In 2012, additional confirmation samples were
collected at locations S1 and S2 and constituents were not detected further confirming the adequacy of the
soil removal activities.
4.2 Groundwater Remediation
MTCA Method A Groundwater exceedances were observed in groundwater at the site. One remedial
action was undertaken by EMS to address groundwater at the Site. EMS informed Ecology that
Fox Island Former Underground Storage Tank Site VCP# SW1022
JUNE 2012 SECTION 4 – SOIL AND GROUNDWATER REMEDIATION
4-2
approximately 500 gallons of contaminated groundwater was pumped from the northwest corner of the
Site in 2006 (See Section 2). It is expected that further information regarding this event is contained
within the 2006 EMS report.
Fox Island Former Underground Storage Tank Site VCP# SW1022
JUNE 2012 SECTION 5 – CONCLUSIONS
5-1
SECTION 5 – CONCLUSIONS
The Site has been adequately characterized based on soil and groundwater data collected over the past
twenty years (1992 through 2012) (See Sections 2 and 3). Releases of constituents to soil occurred within
the northwestern corner of the Site, in the area where the four USTs were formerly located. Detected soil
and groundwater concentrations were greater than MTCA Method A CULs.
5.1 Soil
Detected soil constituents have historically exceeded MTCA Method A Soil CULs for benzene, gasoline,
toluene, and xylenes. These exceedances have been addressed by soil removal events conducted by EMS
in 2006 and 2009. In addition, possible soil removal actions occurred during the 1992 Don Golden UST
removal and the 2004 ETS hydraulic hoist removal. Post-excavation samples collected by EMS and
PIONEER demonstrate that residual concentrations are less than MTCA Method A Soil CULs.
Therefore, no further action is needed for soils at the Site.
5.2 Groundwater
Detected groundwater constituents have historically exceeded MTCA Method A Groundwater CULs for
benzene, diesel, gasoline, and heavy oil. During the 2006 soil removal event, 500 gallons of constituent-
impacted groundwater was pumped and removed from the Site (Ecology 2008). This event likely resulted
in decreased constituent concentrations in groundwater.
During the most recent groundwater monitoring conducted at the three on-Site groundwater monitoring
wells, constituents sampled were not detected. During the most recent groundwater monitoring
conducted at the three down gradient off-Site groundwater monitoring wells, constituents were detected
only in MW-1, immediately down gradient of the historic soil source area, and all constituent
concentrations were below MTCA Method A Groundwater CULs.
Although Ecology usually requires four quarters of groundwater monitoring before issuing a NFA
opinion for a Site, this Site should qualify for a NFA opinion based on;
1. the 2006 and 2009 soil remediation events which completely addressed the chemical source area;
2. the duration of time that has passed since the 2006 soil remediation event that has allowed natural
attenuation to decrease chemical concentrations;
3. groundwater ingestion is an incomplete exposure pathway at the Site since a drinking water well
could never be installed down gradient of the Site due to the Site's groundwater characteristics
and proximity to Puget Sound; and
4. Site groundwater is likely to be heavily influenced by the predominant surface water body (Puget
Sound) immediately adjacent to the Site, and groundwater flow direction is highly unlikely to
deviate from its observed northeasterly flow direction. Thusly, the most recent groundwater
monitoring events at the on-Site and down gradient wells should suffice for Site groundwater
characterization.
Fox Island Former Underground Storage Tank Site VCP# SW1022
JUNE 2012 SECTION 6 – REFERENCES
6-1
SECTION 6 – REFERENCES
Environmental Management Services, Inc. 2005. Subsurface Investigation. Project Location: 601 9th
Avenue Fox Island, WA 98333. November.
Environmental Management Services, Inc. 2009. Subsurface Investigation. 612 9th Avenue FI Fox
Island, Washington 98333. March.
Environmental Management Services, Inc. 2010. Ground Water Monitoring Report. Woodward-Diaz
Property 601 9th Avenue Fox Island, Washington. November.
Environmental Tank Service, Inc. 2004. Soil and Groundwater Analytical Results 614 9th Avenue, Fox
Island, WA 98333. April.
Golder Associates. 2005. Final Report - Environmental Investigation Report Fox Island Site. (Pierce
County Easement on the Former Forsbeck Property). Parcel No. 0120016007. May.
Langseth Environmental Servies, Inc. 2001. Phase II Site Investigation Report Soil Boring & Sampling
Project. November.
Sound Analytical Services, Inc. 1992. Project #2-113 Carl Forsbeck. Report On Analysis of Seven Soil
Samples. December.
PIONEER Technologies Corporation. 2012. Soil and Groundwater Sampling Investigation Results. 612
9th Avenue FI Fox Island WA. April.
Washington State Department of Ecology. 2007. Model Toxics Control Act Statute and Regulation.
Publication No. 94-06. November.
Washington State Department of Ecology. 2008. Environmental Report Tracking System # 549848.
ERTS S549848, Forsbeck/Woodard Property Chronology. April.
Washington State Department of Ecology. 2012. Cleanup Levels and Risk Calculation Database.
Queried May 18th 2012.
Fox Island Former UST SiteFox Island, WA
LOG OF TEST PIT S-1
Date Started : 3/29/12
Date Completed : 3/29/12
Method : Track Mount Excavator
Sampling Method : Grab
Logged By : S. Munson
Organization : PIONEER
Northing Coord. : 708856.257037
Easting Coord. : 1113683.34701
De
pth
in
Fe
et
0
1
2
3
4
5
6
7
8
9
10
DESCRIPTION
SAND - Moist silty sand with trace gravels, light brown to grey
More grey
Total Depth = 5 ft
GR
AP
HIC
Wa
ter
Le
ve
l
% R
eco
ve
ry
100
Sa
mp
le I
nte
rva
l
X
Contacts or GW?
No
Notes
No odors or sheen observed
Sampled for: NWTPH-Gx, BTEX
Fox Island Former UST SiteFox Island, WA
LOG OF TEST PIT S-2
Date Started : 3/29/12
Date Completed : 3/29/12
Method : Track Mount Excavator
Sampling Method : Grab
Logged By : S. Munson
Organization : PIONEER
Northing Coord. : 708838.819679
Easting Coord. : 1113684.53366
De
pth
in
Fe
et
0
1
2
3
4
5
6
7
8
9
10
DESCRIPTION
GR
AP
HIC
Wa
ter
Le
ve
l
% R
eco
ve
ry
100
Sa
mp
le I
nte
rva
l
X
Contacts or GW?
No
Notes
No odors or sheen observed
Sampled for: NWTPH-Gx, BTEX
SAND - Moist silty sand with trace gravels, light brown to grey
More grey
More moist
Total Depth = 7.5 ft
Fox Island Former UST SiteFox Island, WA
LOG OF TEST PIT TP-2
Date Started : 3/29/12
Date Completed : 3/29/12
Method : Track Mount Excavator
Sampling Method : Grab
Logged By : S. Munson
Organization : PIONEER
Northing Coord. : 708849.310731
Easting Coord. : 1113683.75518
De
pth
in
Fe
et
0
1
2
3
4
5
6
7
8
9
10
DESCRIPTION
GR
AP
HIC
Wa
ter
Le
ve
l
SAND - Moist silty sand with trace gravels, light brown to grey
Total Depth = 4.25 ft
% R
eco
ve
ry
100S
am
ple
In
terv
al
X
Contacts or GW?
No
Notes
No odors or sheen observed
Sampled for: NWTPH-Gx, BTEX
Fox Island Former UST SiteFox Island, WA
LOG OF TEST PIT TP-3
Date Started : 3/29/12
Date Completed : 3/29/12
Method : Track Mount Excavator
Sampling Method : Grab
Logged By : S. Munson
Organization : PIONEER
Northing Coord. : 708845.933986
Easting Coord. : 1113705.10848
De
pth
in
Fe
et
0
1
2
3
4
5
6
7
8
9
10
DESCRIPTION
GR
AP
HIC
Wa
ter
Le
ve
l
% R
eco
ve
ry
100
Sa
mp
le I
nte
rva
l
X
Contacts or GW?
No
Notes
No odors or sheen observed
Sampled for: NWTPH-Gx, BTEX
SAND - Moist silty sand with trace gravels, light brown to grey
Faint yellow/white discoloration
Total Depth = 2.5 ft
April 18, 2012
LIMS USE: FR - STACY MUNSON
LIMS OBJECT ID: 2511452
2511452
Project:
Pace Project No.:
RE:
Stacy MunsonPioneer Technologies5205 Corporate Ctr. Ct. SE.Ste. ALacey, WA 98503
Fox Island
Dear Stacy Munson:
Enclosed are the analytical results for sample(s) received by the laboratory between March 29, 2012and April 06, 2012. The results relate only to the samples included in this report. Results reportedherein conform to the most current TNI standards and the laboratory's Quality Assurance Manual,where applicable, unless otherwise noted in the body of the report.
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Karen Jang
[email protected] Manager
Enclosures
cc: Brad Grimstead, Pioneer Technologies
REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Page 1 of 17
Pace Analytical Services, Inc.940 South Harney
Seattle, WA 98108
(206)767-5060
1 of 20
CERTIFICATIONS
Pace Project No.:
Project:
2511452
Fox Island
Washington Certification IDs940 South Harney Street, Seattle, WA 98108Alaska CS Certification #: UST-025Arizona Certification #: AZ0770California Certification #: 01153CA
Florida/NELAP Certification #: E87617Oregon Certification #: WA200007Washington Certification #: C555
REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Page 2 of 17
Pace Analytical Services, Inc.940 South Harney
Seattle, WA 98108
(206)767-5060
2 of 20
SAMPLE ANALYTE COUNT
Pace Project No.:
Project:
2511452
Fox Island
Lab ID Sample ID MethodAnalytesReported LaboratoryAnalysts
2511452001 FI_S-2_032912 NWTPH-Gx 3 PASI-SCC
EPA 8260 8 PASI-SLPM
ASTM D2974-87 1 PASI-SCMM
2511452002 FI_TP-2_032912 NWTPH-Gx 3 PASI-SCC
EPA 8260 8 PASI-SLPM
ASTM D2974-87 1 PASI-SCMM
2511452003 FI_S-1_032912 NWTPH-Gx 3 PASI-SCC
EPA 8260 8 PASI-SLPM
ASTM D2974-87 1 PASI-SCMM
2511452004 F1_TP-3_032912 NWTPH-Gx 3 PASI-SCC
EPA 8260 8 PASI-SLPM
ASTM D2974-87 1 PASI-SCMM
2511452005 F1_MW3_032912 EPA 8011 2 PASI-SAY1
EPA 5030B/8260 10 PASI-SCC
NWTPH-Gx 2 PASI-SCC
2511452006 F1_MW1_032912 EPA 8011 2 PASI-SAY1
EPA 5030B/8260 10 PASI-SCC
NWTPH-Gx 2 PASI-SCC
2511452007 F1_MW2B_032912 EPA 8011 2 PASI-SAY1
EPA 5030B/8260 10 PASI-SCC
NWTPH-Gx 2 PASI-SCC
2511452008 TRIP BLANK EPA 5030B/8260 10 PASI-SCC
NWTPH-Gx 2 PASI-SCC
2511452009 F1_MW3_040612 EPA 6010 1 PASI-SBGA
2511452010 F1_MW1_040612 EPA 6010 1 PASI-SBGA
2511452011 F1_MW2B_040612 EPA 6010 1 PASI-SBGA
REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Page 3 of 17
Pace Analytical Services, Inc.940 South Harney
Seattle, WA 98108
(206)767-5060
3 of 20
ANALYTICAL RESULTS
Pace Project No.:
Project:
2511452
Fox Island
Sample: FI_S-2_032912 Lab ID: 2511452001 Collected: 03/29/12 08:15 Received: 03/29/12 16:20 Matrix: Solid
Results reported on a "dry-weight" basis
Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit
NWTPH-Gx GCV Analytical Method: NWTPH-Gx Preparation Method: NWTPH-Gx
Gasoline Range Organics ND mg/kg 1 04/04/12 21:5604/04/12 16:316.1
Surrogatesa,a,a-Trifluorotoluene (S) 131 % 1 04/04/12 21:56 98-08-804/04/12 16:3150-150
4-Bromofluorobenzene (S) 104 % 1 04/04/12 21:56 460-00-404/04/12 16:3150-150
8260/5035A Volatile Organics Analytical Method: EPA 8260
Benzene ND mg/kg 1 04/04/12 15:44 71-43-20.0030
Ethylbenzene ND mg/kg 1 04/04/12 15:44 100-41-40.0030
Toluene ND mg/kg 1 04/04/12 15:44 108-88-30.0030
Xylene (Total) ND mg/kg 1 04/04/12 15:44 1330-20-70.0091
SurrogatesDibromofluoromethane (S) 105 % 1 04/04/12 15:44 1868-53-774-126
Toluene-d8 (S) 92 % 1 04/04/12 15:44 2037-26-571-130
4-Bromofluorobenzene (S) 101 % 1 04/04/12 15:44 460-00-468-141
1,2-Dichloroethane-d4 (S) 110 % 1 04/04/12 15:44 17060-07-068-141
Percent Moisture Analytical Method: ASTM D2974-87
Percent Moisture 20.4 % 1 04/02/12 16:280.10
Sample: FI_TP-2_032912 Lab ID: 2511452002 Collected: 03/29/12 08:25 Received: 03/29/12 16:20 Matrix: Solid
Results reported on a "dry-weight" basis
Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit
NWTPH-Gx GCV Analytical Method: NWTPH-Gx Preparation Method: NWTPH-Gx
Gasoline Range Organics ND mg/kg 1 04/04/12 22:2004/04/12 16:316.4
Surrogatesa,a,a-Trifluorotoluene (S) 131 % 1 04/04/12 22:20 98-08-804/04/12 16:3150-150
4-Bromofluorobenzene (S) 103 % 1 04/04/12 22:20 460-00-404/04/12 16:3150-150
8260/5035A Volatile Organics Analytical Method: EPA 8260
Benzene ND mg/kg 1 04/04/12 18:08 71-43-20.0031
Ethylbenzene ND mg/kg 1 04/04/12 18:08 100-41-40.0031
Toluene ND mg/kg 1 04/04/12 18:08 108-88-30.0031
Xylene (Total) ND mg/kg 1 04/04/12 18:08 1330-20-70.0092
SurrogatesDibromofluoromethane (S) 107 % 1 04/04/12 18:08 1868-53-774-126
Toluene-d8 (S) 93 % 1 04/04/12 18:08 2037-26-571-130
4-Bromofluorobenzene (S) 105 % 1 04/04/12 18:08 460-00-468-141
1,2-Dichloroethane-d4 (S) 112 % 1 04/04/12 18:08 17060-07-068-141
Percent Moisture Analytical Method: ASTM D2974-87
Percent Moisture 19.2 % 1 04/02/12 16:290.10
REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Date: 04/18/2012 12:30 PM Page 4 of 17
Pace Analytical Services, Inc.940 South Harney
Seattle, WA 98108
(206)767-5060
4 of 20
ANALYTICAL RESULTS
Pace Project No.:
Project:
2511452
Fox Island
Sample: FI_S-1_032912 Lab ID: 2511452003 Collected: 03/29/12 08:35 Received: 03/29/12 16:20 Matrix: Solid
Results reported on a "dry-weight" basis
Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit
NWTPH-Gx GCV Analytical Method: NWTPH-Gx Preparation Method: NWTPH-Gx
Gasoline Range Organics ND mg/kg 1 04/04/12 23:0804/04/12 16:316.0
Surrogatesa,a,a-Trifluorotoluene (S) 124 % 1 04/04/12 23:08 98-08-804/04/12 16:3150-150
4-Bromofluorobenzene (S) 100 % 1 04/04/12 23:08 460-00-404/04/12 16:3150-150
8260/5035A Volatile Organics Analytical Method: EPA 8260
Benzene ND mg/kg 1 04/04/12 18:28 71-43-20.0029
Ethylbenzene ND mg/kg 1 04/04/12 18:28 100-41-40.0029
Toluene ND mg/kg 1 04/04/12 18:28 108-88-30.0029
Xylene (Total) ND mg/kg 1 04/04/12 18:28 1330-20-70.0087
SurrogatesDibromofluoromethane (S) 99 % 1 04/04/12 18:28 1868-53-774-126
Toluene-d8 (S) 93 % 1 04/04/12 18:28 2037-26-571-130
4-Bromofluorobenzene (S) 105 % 1 04/04/12 18:28 460-00-468-141
1,2-Dichloroethane-d4 (S) 111 % 1 04/04/12 18:28 17060-07-068-141
Percent Moisture Analytical Method: ASTM D2974-87
Percent Moisture 15.0 % 1 04/02/12 16:290.10
Sample: F1_TP-3_032912 Lab ID: 2511452004 Collected: 03/29/12 08:45 Received: 03/29/12 16:20 Matrix: Solid
Results reported on a "dry-weight" basis
Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit
NWTPH-Gx GCV Analytical Method: NWTPH-Gx Preparation Method: NWTPH-Gx
Gasoline Range Organics ND mg/kg 1 04/04/12 23:3204/04/12 16:314.9
Surrogatesa,a,a-Trifluorotoluene (S) 125 % 1 04/04/12 23:32 98-08-804/04/12 16:3150-150
4-Bromofluorobenzene (S) 103 % 1 04/04/12 23:32 460-00-404/04/12 16:3150-150
8260/5035A Volatile Organics Analytical Method: EPA 8260
Benzene ND mg/kg 1 04/04/12 18:49 71-43-20.0027
Ethylbenzene ND mg/kg 1 04/04/12 18:49 100-41-40.0027
Toluene ND mg/kg 1 04/04/12 18:49 108-88-30.0027
Xylene (Total) ND mg/kg 1 04/04/12 18:49 1330-20-70.0082
SurrogatesDibromofluoromethane (S) 104 % 1 04/04/12 18:49 1868-53-774-126
Toluene-d8 (S) 94 % 1 04/04/12 18:49 2037-26-571-130
4-Bromofluorobenzene (S) 106 % 1 04/04/12 18:49 460-00-468-141
1,2-Dichloroethane-d4 (S) 111 % 1 04/04/12 18:49 17060-07-068-141
Percent Moisture Analytical Method: ASTM D2974-87
Percent Moisture 13.4 % 1 04/02/12 16:310.10
REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Date: 04/18/2012 12:30 PM Page 5 of 17
Pace Analytical Services, Inc.940 South Harney
Seattle, WA 98108
(206)767-5060
5 of 20
ANALYTICAL RESULTS
Pace Project No.:
Project:
2511452
Fox Island
Sample: F1_MW3_032912 Lab ID: 2511452005 Collected: 03/29/12 10:00 Received: 03/29/12 16:20 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit
8011 GCS EDB and DBCP Analytical Method: EPA 8011 Preparation Method: EPA 8011
1,2-Dibromoethane (EDB) ND mg/L 1 04/05/12 19:09 106-93-404/05/12 17:000.0000097
Surrogates4-Bromofluorobenzene (S) 97 % 1 04/05/12 19:09 460-00-404/05/12 17:0069-145
8260 MSV Analytical Method: EPA 5030B/8260
1,2-Dichloroethane ND mg/L 1 04/03/12 05:00 107-06-20.0010
Benzene ND mg/L 1 04/03/12 05:00 71-43-20.0010
Ethylbenzene ND mg/L 1 04/03/12 05:00 100-41-40.0010
Methyl-tert-butyl ether ND mg/L 1 04/03/12 05:00 1634-04-40.0010
Toluene ND mg/L 1 04/03/12 05:00 108-88-30.0010
Xylene (Total) ND mg/L 1 04/03/12 05:00 1330-20-70.0030
Surrogates4-Bromofluorobenzene (S) 104 % 1 04/03/12 05:00 460-00-479-121
Dibromofluoromethane (S) 114 % 1 04/03/12 05:00 1868-53-781-119
1,2-Dichloroethane-d4 (S) 123 % 1 04/03/12 05:00 17060-07-072-127
Toluene-d8 (S) 104 % 1 04/03/12 05:00 2037-26-577-120
NWTPH-Gx MSV Analytical Method: NWTPH-Gx
Gasoline Range Organics ND mg/L 1 04/03/12 05:000.050
Surrogates4-Bromofluorobenzene (S) 104 % 1 04/03/12 05:00 460-00-450-150
Sample: F1_MW1_032912 Lab ID: 2511452006 Collected: 03/29/12 11:00 Received: 03/29/12 16:20 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit
8011 GCS EDB and DBCP Analytical Method: EPA 8011 Preparation Method: EPA 8011
1,2-Dibromoethane (EDB) ND mg/L 1 04/05/12 19:38 106-93-404/05/12 17:000.0000098
Surrogates4-Bromofluorobenzene (S) 98 % 1 04/05/12 19:38 460-00-404/05/12 17:0069-145
8260 MSV Analytical Method: EPA 5030B/8260
1,2-Dichloroethane ND mg/L 1 04/03/12 05:19 107-06-20.0010
Benzene ND mg/L 1 04/03/12 05:19 71-43-20.0010
Ethylbenzene 0.0038 mg/L 1 04/03/12 05:19 100-41-40.0010
Methyl-tert-butyl ether ND mg/L 1 04/03/12 05:19 1634-04-40.0010
Toluene 0.0012 mg/L 1 04/03/12 05:19 108-88-30.0010
Xylene (Total) 0.010 mg/L 1 04/03/12 05:19 1330-20-70.0030
Surrogates4-Bromofluorobenzene (S) 90 % 1 04/03/12 05:19 460-00-479-121
Dibromofluoromethane (S) 106 % 1 04/03/12 05:19 1868-53-781-119
1,2-Dichloroethane-d4 (S) 115 % 1 04/03/12 05:19 17060-07-072-127
Toluene-d8 (S) 105 % 1 04/03/12 05:19 2037-26-577-120
NWTPH-Gx MSV Analytical Method: NWTPH-Gx
Gasoline Range Organics 0.41 mg/L 1 04/03/12 05:190.050
REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Date: 04/18/2012 12:30 PM Page 6 of 17
Pace Analytical Services, Inc.940 South Harney
Seattle, WA 98108
(206)767-5060
6 of 20
ANALYTICAL RESULTS
Pace Project No.:
Project:
2511452
Fox Island
Sample: F1_MW1_032912 Lab ID: 2511452006 Collected: 03/29/12 11:00 Received: 03/29/12 16:20 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit
NWTPH-Gx MSV Analytical Method: NWTPH-Gx
Surrogates4-Bromofluorobenzene (S) 90 % 1 04/03/12 05:19 460-00-450-150
Sample: F1_MW2B_032912 Lab ID: 2511452007 Collected: 03/29/12 12:00 Received: 03/29/12 16:20 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit
8011 GCS EDB and DBCP Analytical Method: EPA 8011 Preparation Method: EPA 8011
1,2-Dibromoethane (EDB) ND mg/L 1 04/05/12 20:07 106-93-404/05/12 17:000.0000099
Surrogates4-Bromofluorobenzene (S) 97 % 1 04/05/12 20:07 460-00-404/05/12 17:0069-145
8260 MSV Analytical Method: EPA 5030B/8260
1,2-Dichloroethane ND mg/L 1 04/03/12 05:37 107-06-20.0010
Benzene ND mg/L 1 04/03/12 05:37 71-43-20.0010
Ethylbenzene ND mg/L 1 04/03/12 05:37 100-41-40.0010
Methyl-tert-butyl ether ND mg/L 1 04/03/12 05:37 1634-04-40.0010
Toluene ND mg/L 1 04/03/12 05:37 108-88-30.0010
Xylene (Total) ND mg/L 1 04/03/12 05:37 1330-20-70.0030
Surrogates4-Bromofluorobenzene (S) 102 % 1 04/03/12 05:37 460-00-479-121
Dibromofluoromethane (S) 112 % 1 04/03/12 05:37 1868-53-781-119
1,2-Dichloroethane-d4 (S) 120 % 1 04/03/12 05:37 17060-07-072-127
Toluene-d8 (S) 105 % 1 04/03/12 05:37 2037-26-577-120
NWTPH-Gx MSV Analytical Method: NWTPH-Gx
Gasoline Range Organics ND mg/L 1 04/03/12 05:370.050
Surrogates4-Bromofluorobenzene (S) 102 % 1 04/03/12 05:37 460-00-450-150
Sample: TRIP BLANK Lab ID: 2511452008 Collected: 03/29/12 12:30 Received: 03/29/12 16:20 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit
8260 MSV Analytical Method: EPA 5030B/8260
1,2-Dichloroethane ND mg/L 1 04/03/12 04:05 107-06-20.0010
Benzene ND mg/L 1 04/03/12 04:05 71-43-20.0010
Ethylbenzene ND mg/L 1 04/03/12 04:05 100-41-40.0010
Methyl-tert-butyl ether ND mg/L 1 04/03/12 04:05 1634-04-40.0010
Toluene ND mg/L 1 04/03/12 04:05 108-88-30.0010
Xylene (Total) ND mg/L 1 04/03/12 04:05 1330-20-70.0030
Surrogates4-Bromofluorobenzene (S) 103 % 1 04/03/12 04:05 460-00-479-121
Dibromofluoromethane (S) 113 % 1 04/03/12 04:05 1868-53-781-119
1,2-Dichloroethane-d4 (S) 118 % 1 04/03/12 04:05 17060-07-072-127
REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Date: 04/18/2012 12:30 PM Page 7 of 17
Pace Analytical Services, Inc.940 South Harney
Seattle, WA 98108
(206)767-5060
7 of 20
ANALYTICAL RESULTS
Pace Project No.:
Project:
2511452
Fox Island
Sample: TRIP BLANK Lab ID: 2511452008 Collected: 03/29/12 12:30 Received: 03/29/12 16:20 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit
8260 MSV Analytical Method: EPA 5030B/8260
SurrogatesToluene-d8 (S) 106 % 1 04/03/12 04:05 2037-26-577-120
NWTPH-Gx MSV Analytical Method: NWTPH-Gx
Gasoline Range Organics ND mg/L 1 04/03/12 04:050.050
Surrogates4-Bromofluorobenzene (S) 103 % 1 04/03/12 04:05 460-00-450-150
Sample: F1_MW3_040612 Lab ID: 2511452009 Collected: 04/06/12 13:30 Received: 04/06/12 16:13 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit
6010 MET ICP Analytical Method: EPA 6010 Preparation Method: EPA 3010
Lead ND mg/L 1 04/17/12 14:33 7439-92-104/13/12 10:390.010
Sample: F1_MW1_040612 Lab ID: 2511452010 Collected: 04/06/12 14:15 Received: 04/06/12 16:13 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit
6010 MET ICP Analytical Method: EPA 6010 Preparation Method: EPA 3010
Lead ND mg/L 1 04/17/12 14:37 7439-92-104/13/12 10:390.010
Sample: F1_MW2B_040612 Lab ID: 2511452011 Collected: 04/06/12 15:15 Received: 04/06/12 16:13 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit
6010 MET ICP Analytical Method: EPA 6010 Preparation Method: EPA 3010
Lead ND mg/L 1 04/17/12 14:41 7439-92-104/13/12 10:390.010
REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Date: 04/18/2012 12:30 PM Page 8 of 17
Pace Analytical Services, Inc.940 South Harney
Seattle, WA 98108
(206)767-5060
8 of 20
QUALITY CONTROL DATA
Pace Project No.:
Project:
2511452
Fox Island
QC Batch:
QC Batch Method:
Analysis Method:
Analysis Description:
GCV/2732
NWTPH-Gx
NWTPH-Gx
NWTPH-Gx Solid GCV
Associated Lab Samples: 2511452001, 2511452002, 2511452003, 2511452004
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK: 109527
Associated Lab Samples: 2511452001, 2511452002, 2511452003, 2511452004
Matrix: Solid
Analyzed
Gasoline Range Organics mg/kg ND 5.0 04/04/12 19:09
4-Bromofluorobenzene (S) % 90 50-150 04/04/12 19:09
a,a,a-Trifluorotoluene (S) % 105 50-150 04/04/12 19:09
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
109528LABORATORY CONTROL SAMPLE:
LCSSpike
Gasoline Range Organics mg/kg 10.812.5 86 63-140
4-Bromofluorobenzene (S) % 82 50-150
a,a,a-Trifluorotoluene (S) % 97 50-150
Parameter Units
Dup
Result QualifiersRPDResult
2511462003
109618SAMPLE DUPLICATE:
Gasoline Range Organics mg/kg NDND
4-Bromofluorobenzene (S) % 104 1392
a,a,a-Trifluorotoluene (S) % 134 5127
REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Date: 04/18/2012 12:30 PM Page 9 of 17
Pace Analytical Services, Inc.940 South Harney
Seattle, WA 98108
(206)767-5060
9 of 20
QUALITY CONTROL DATA
Pace Project No.:
Project:
2511452
Fox Island
QC Batch:
QC Batch Method:
Analysis Method:
Analysis Description:
MPRP/2949
EPA 3010
EPA 6010
6010 MET
Associated Lab Samples: 2511452009, 2511452010, 2511452011
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK: 110971
Associated Lab Samples: 2511452009, 2511452010, 2511452011
Matrix: Water
Analyzed
Lead mg/L ND 0.010 04/17/12 13:32
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
110972LABORATORY CONTROL SAMPLE:
LCSSpike
Lead mg/L 0.48.5 95 80-120
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
110973MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
2511625001
110974
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
Lead mg/L .5 95 75-12594 1.5ND 0.48 0.47
REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Date: 04/18/2012 12:30 PM Page 10 of 17
Pace Analytical Services, Inc.940 South Harney
Seattle, WA 98108
(206)767-5060
10 of 20
QUALITY CONTROL DATA
Pace Project No.:
Project:
2511452
Fox Island
QC Batch:
QC Batch Method:
Analysis Method:
Analysis Description:
MSV/6725
EPA 5030B/8260
EPA 5030B/8260
8260 MSV Water 10 mL Purge
Associated Lab Samples: 2511452005, 2511452006, 2511452007, 2511452008
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK: 109161
Associated Lab Samples: 2511452005, 2511452006, 2511452007, 2511452008
Matrix: Water
Analyzed
1,2-Dichloroethane mg/L ND 0.0010 CU04/03/12 03:46
Benzene mg/L ND 0.0010 04/03/12 03:46
Ethylbenzene mg/L ND 0.0010 04/03/12 03:46
Methyl-tert-butyl ether mg/L ND 0.0010 04/03/12 03:46
Toluene mg/L ND 0.0010 04/03/12 03:46
Xylene (Total) mg/L ND 0.0030 04/03/12 03:46
1,2-Dichloroethane-d4 (S) % 116 72-127 04/03/12 03:46
4-Bromofluorobenzene (S) % 101 79-121 04/03/12 03:46
Dibromofluoromethane (S) % 101 81-119 04/03/12 03:46
Toluene-d8 (S) % 106 77-120 04/03/12 03:46
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
109162LABORATORY CONTROL SAMPLE:
LCSSpike
1,2-Dichloroethane mg/L 0.023 CH.02 116 63-131
Benzene mg/L 0.018.02 89 66-123
Ethylbenzene mg/L 0.020.02 101 67-122
Methyl-tert-butyl ether mg/L 0.020.02 101 65-138
Toluene mg/L 0.019.02 93 64-118
Xylene (Total) mg/L 0.061.06 101 68-122
1,2-Dichloroethane-d4 (S) % 120 72-127
4-Bromofluorobenzene (S) % 93 79-121
Dibromofluoromethane (S) % 114 81-119
Toluene-d8 (S) % 100 77-120
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
109163MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
2511469001
109164
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
1,2-Dichloroethane mg/L CH,M1.02 146 60-138124 16.02ND 0.029 0.025
Benzene mg/L .02 122 63-138107 14.02ND 0.024 0.021
Ethylbenzene mg/L .02 135 65-135119 12.02ND 0.027 0.024
Methyl-tert-butyl ether mg/L .02 122 59-143106 14.02ND 0.024 0.021
Toluene mg/L .02 127 64-128112 12.02ND 0.025 0.023
Xylene (Total) mg/L M1.06 134 65-133118 13.06ND 0.081 0.071
1,2-Dichloroethane-d4 (S) % 116 72-127119
4-Bromofluorobenzene (S) % 92 79-12192
Dibromofluoromethane (S) % 113 81-119101
Toluene-d8 (S) % 102 77-120102
REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Date: 04/18/2012 12:30 PM Page 11 of 17
Pace Analytical Services, Inc.940 South Harney
Seattle, WA 98108
(206)767-5060
11 of 20
QUALITY CONTROL DATA
Pace Project No.:
Project:
2511452
Fox Island
QC Batch:
QC Batch Method:
Analysis Method:
Analysis Description:
MSV/6729
EPA 8260
EPA 8260
8260 MSV 5035A Volatile Organics
Associated Lab Samples: 2511452001, 2511452002, 2511452003, 2511452004
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK: 109352
Associated Lab Samples: 2511452001, 2511452002, 2511452003, 2511452004
Matrix: Solid
Analyzed
Benzene mg/kg ND 0.0030 04/04/12 09:32
Ethylbenzene mg/kg ND 0.0030 04/04/12 09:32
Toluene mg/kg ND 0.0030 04/04/12 09:32
Xylene (Total) mg/kg ND 0.0090 04/04/12 09:32
1,2-Dichloroethane-d4 (S) % 103 68-141 04/04/12 09:32
4-Bromofluorobenzene (S) % 107 68-141 04/04/12 09:32
Dibromofluoromethane (S) % 96 74-126 04/04/12 09:32
Toluene-d8 (S) % 96 71-130 04/04/12 09:32
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
109353LABORATORY CONTROL SAMPLE:
LCSSpike
Benzene mg/kg 0.018.02 90 67-133
Ethylbenzene mg/kg 0.020.02 102 70-124
Toluene mg/kg 0.016.02 82 67-129
Xylene (Total) mg/kg 0.062.06 103 68-127
1,2-Dichloroethane-d4 (S) % 99 68-141
4-Bromofluorobenzene (S) % 105 68-141
Dibromofluoromethane (S) % 103 74-126
Toluene-d8 (S) % 93 71-130
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
109600MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
2511452004
109601
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
Benzene mg/kg .02 107 40-14984 28.018ND 0.021 0.016
Ethylbenzene mg/kg .02 118 40-14695 26.018ND 0.023 0.018
Toluene mg/kg .02 91 40-14777 21.018ND 0.018 0.014
Xylene (Total) mg/kg .058 127 40-14297 31.055ND 0.074 0.054
1,2-Dichloroethane-d4 (S) % 93 68-14191
4-Bromofluorobenzene (S) % 118 68-141107
Dibromofluoromethane (S) % IS83 74-12694
Toluene-d8 (S) % 96 71-13099
REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Date: 04/18/2012 12:30 PM Page 12 of 17
Pace Analytical Services, Inc.940 South Harney
Seattle, WA 98108
(206)767-5060
12 of 20
QUALITY CONTROL DATA
Pace Project No.:
Project:
2511452
Fox Island
QC Batch:
QC Batch Method:
Analysis Method:
Analysis Description:
MSV/6724
NWTPH-Gx
NWTPH-Gx
NWTPH-Gx MSV Water
Associated Lab Samples: 2511452005, 2511452006, 2511452007, 2511452008
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK: 109157
Associated Lab Samples: 2511452005, 2511452006, 2511452007, 2511452008
Matrix: Water
Analyzed
Gasoline Range Organics mg/L ND 0.050 04/03/12 03:46
4-Bromofluorobenzene (S) % 101 50-150 04/03/12 03:46
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
109158LABORATORY CONTROL SAMPLE:
LCSSpike
Gasoline Range Organics mg/L 0.45.5 90 65-139
4-Bromofluorobenzene (S) % 98 50-150
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
109159MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
2511469001
109160
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
Gasoline Range Organics mg/L .5 97 48-14798 1.5ND 0.49 0.49
4-Bromofluorobenzene (S) % 98 50-150100
REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Date: 04/18/2012 12:30 PM Page 13 of 17
Pace Analytical Services, Inc.940 South Harney
Seattle, WA 98108
(206)767-5060
13 of 20
QUALITY CONTROL DATA
Pace Project No.:
Project:
2511452
Fox Island
QC Batch:
QC Batch Method:
Analysis Method:
Analysis Description:
OEXT/5333
EPA 8011
EPA 8011
GCS 8011 EDB DBCP
Associated Lab Samples: 2511452005, 2511452006, 2511452007
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK: 109774
Associated Lab Samples: 2511452005, 2511452006, 2511452007
Matrix: Water
Analyzed
1,2-Dibromoethane (EDB) mg/L ND 0.000010 04/05/12 18:12
4-Bromofluorobenzene (S) % 92 69-145 04/05/12 18:12
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
109775LABORATORY CONTROL SAMPLE:
LCSSpike
1,2-Dibromoethane (EDB) mg/L 0.00025.00025 98 68-124
4-Bromofluorobenzene (S) % 96 69-145
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
109776MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
2511452007
109777
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
1,2-Dibromoethane (EDB) mg/L .00025 98 62-12998 1.00024ND 0.00024 0.00024
4-Bromofluorobenzene (S) % 93 69-14595
REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Date: 04/18/2012 12:30 PM Page 14 of 17
Pace Analytical Services, Inc.940 South Harney
Seattle, WA 98108
(206)767-5060
14 of 20
QUALITY CONTROL DATA
Pace Project No.:
Project:
2511452
Fox Island
QC Batch:
QC Batch Method:
Analysis Method:
Analysis Description:
PMST/2002
ASTM D2974-87
ASTM D2974-87
Dry Weight/Percent Moisture
Associated Lab Samples: 2511452001, 2511452002, 2511452003, 2511452004
Parameter Units
Dup
Result QualifiersRPDResult
2511452003
109146SAMPLE DUPLICATE:
Percent Moisture % 15.2 215.0
REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Date: 04/18/2012 12:30 PM Page 15 of 17
Pace Analytical Services, Inc.940 South Harney
Seattle, WA 98108
(206)767-5060
15 of 20
QUALIFIERS
Pace Project No.:
Project:
2511452
Fox Island
DEFINITIONS
DF - Dilution Factor, if reported, represents the factor applied to the reported data due to changes in sample preparation, dilution ofthe sample aliquot, or moisture content.
ND - Not Detected at or above adjusted reporting limit.
J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL - Adjusted Method Detection Limit.
S - Surrogate
1,2-Diphenylhydrazine (8270 listed analyte) decomposes to Azobenzene.
Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.
LCS(D) - Laboratory Control Sample (Duplicate)
MS(D) - Matrix Spike (Duplicate)
DUP - Sample Duplicate
RPD - Relative Percent Difference
NC - Not Calculable.
SG - Silica Gel Clean-Up
N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported foreach analyte is a combined concentration.
Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.
TNI - The NELAC Institute.
LABORATORIES
Pace Analytical Services - SeattlePASI-S
ANALYTE QUALIFIERSThe continuing calibration for this compound is outside of Pace Analytical acceptance limits. The results may be biasedhigh.
CH
The continuing calibration for this compound is outside of Pace Analytical acceptance limits. Analyte presence belowreporting limits in associated samples. Results unaffected by high bias.
CU
The internal standard response is below criteria. Results may be biased high.IS
Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1
REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Date: 04/18/2012 12:30 PM Page 16 of 17
Pace Analytical Services, Inc.940 South Harney
Seattle, WA 98108
(206)767-5060
16 of 20
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Pace Project No.:
Project:
2511452
Fox Island
Lab ID Sample ID QC Batch Method QC Batch Analytical MethodAnalyticalBatch
2511452005 OEXT/5333 GCSV/3443F1_MW3_032912 EPA 8011 EPA 8011
2511452006 OEXT/5333 GCSV/3443F1_MW1_032912 EPA 8011 EPA 8011
2511452007 OEXT/5333 GCSV/3443F1_MW2B_032912 EPA 8011 EPA 8011
2511452001 GCV/2732 GCV/2733FI_S-2_032912 NWTPH-Gx NWTPH-Gx
2511452002 GCV/2732 GCV/2733FI_TP-2_032912 NWTPH-Gx NWTPH-Gx
2511452003 GCV/2732 GCV/2733FI_S-1_032912 NWTPH-Gx NWTPH-Gx
2511452004 GCV/2732 GCV/2733F1_TP-3_032912 NWTPH-Gx NWTPH-Gx
2511452009 MPRP/2949 ICP/2759F1_MW3_040612 EPA 3010 EPA 6010
2511452010 MPRP/2949 ICP/2759F1_MW1_040612 EPA 3010 EPA 6010
2511452011 MPRP/2949 ICP/2759F1_MW2B_040612 EPA 3010 EPA 6010
2511452005 MSV/6725F1_MW3_032912 EPA 5030B/8260
2511452006 MSV/6725F1_MW1_032912 EPA 5030B/8260
2511452007 MSV/6725F1_MW2B_032912 EPA 5030B/8260
2511452008 MSV/6725TRIP BLANK EPA 5030B/8260
2511452001 MSV/6729FI_S-2_032912 EPA 8260
2511452002 MSV/6729FI_TP-2_032912 EPA 8260
2511452003 MSV/6729FI_S-1_032912 EPA 8260
2511452004 MSV/6729F1_TP-3_032912 EPA 8260
2511452005 MSV/6724F1_MW3_032912 NWTPH-Gx
2511452006 MSV/6724F1_MW1_032912 NWTPH-Gx
2511452007 MSV/6724F1_MW2B_032912 NWTPH-Gx
2511452008 MSV/6724TRIP BLANK NWTPH-Gx
2511452001 PMST/2002FI_S-2_032912 ASTM D2974-87
2511452002 PMST/2002FI_TP-2_032912 ASTM D2974-87
2511452003 PMST/2002FI_S-1_032912 ASTM D2974-87
2511452004 PMST/2002F1_TP-3_032912 ASTM D2974-87
REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Date: 04/18/2012 12:30 PM Page 17 of 17
Pace Analytical Services, Inc.940 South Harney
Seattle, WA 98108
(206)767-5060
17 of 20