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UT HWA GEOSCIENCES INC.
November 21, 2007
HWA Project No. 2006-067
Gray & Osborne, Inc.
701 Dexter Avenue North Suite 200
Seattle, Washington 98109-1004
Attention: Mr. Barry Baker, P.E.
S W P-2 7-2711 11-21-2007
Renton Village Storm System Project
Petroleum Contaminated Soil Disposal
Subject: Soil Analyses and Disposal
Renton Village Storm System Improvement Project
City of Renton, Washington
Dear Mr. Baker:
The City of Renton (City) is replacing the Renton Village storm sewer system, located between
South Grady Way and I-405, in the City of Renton (City), Washington (Figure 1). During
removal of an existing storm sewer and soils excavation for replacement with a larger culvert,
apparent petroleum -affected soils were encountered (Figure 2). HWA GeoSciences, Inc. (HWA)
was requested to assist the City with characterization and disposal of these soils.
HWA SCOPE OF WORK
HWA's scope of work included:
• Collecting soil samples from stockpiled soils and trench excavations at the project site.
• Providing City personnel guidance for periodic soil screening and sampling.
• Submittal of soil samples for analysis by NWTPH-Dx for 24-hour rush analysis.
• Prepare this summary report.
SOIL SAMPLING
On September 7, 2007, a truckload of excavated soils from the site was rejected by Cadman, Inc.
based on an apparent petroleum detection by PetroFlagTM petroleum screening at their clean soils
receiving facility. Petroflag is a semi -quantitative field screening method used to identify a broad
range of petroleum hydrocarbons.
Gray & Osborne collected a three-point composite stockpile sample of the rejected soils and
subsequent laboratory analyses of the sample at Analytical Resources, Inc. (ARI) detected diesel
and heavy oil range petroleum hydrocarbons. The affected soils had been excavated from areas
underlying an existing storm sewer that was being removed for replacement. Because there was
no evidence of historic petroleum use at the site, the source of the petroleum 19730 - 64th Avenue W.
was assumed to be from storm water runoff from surrounding parking areas and suite 200
roadways. Lynnwood, WA 98036.5957
Tel: 425.774.0106
Fax: 425.774.2714
www.hwageosdences.com
' November 21, 2007
HWA Project No. 2006-067
' Based on these analytical results, HWA conducted supplemental stockpile and trench excavation
sampling on September 12 and 17, 2007. HWA assisted the City in selecting a disposal facility
and preparing documentation for the petroleum -affected soils. To expedite sample collection and
' analysis as well as decrease construction impacts, HWA also provided the City with soil sampling
guidance for subsequent stockpile and trench sampling. City personnel collected additional
stockpile and excavation samples for soils characterization on September 19 and 27, 2007. Soil
samples were collected in general accordance with the Washington Department of Ecology
(Ecology) Guidance for Remediation of Petroleum Contaminated Soils (Ecology, 1995).
1 Trench sample locations and depths are depicted on Figure 2.
All samples were collected using decontaminated stainless steel spoons, and transferred to
laboratory -provided glassware, placed in a cooler with "blue ice" and transferred under chain -of -
custody protocol to the analytical laboratory.
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SAMPLE ANALYSES
Analytical Resources, Inc of Tukwila, Washington and Fremont Analytical, Inc., of Seattle,
Washington, analyzed selected samples for the following analytes by using the following test
methods:
u Petroleum hydrocarbon screening and identification by method NWTPH-HCID
o Total petroleum hydrocarbons (TPH) in the diesel -range extended (method NWTPH-Dx)
quantified against diesel, transformer oil, and/or heavy oil standards if any of these
petroleum fractions were positively identified. Silica gel/acid cleanup was used to prevent
wood debris and other non -contaminant organic material in the samples from affecting
analytical results.
RESULTS
Table 1 summarizes the analytical results. Attachment A contains the laboratory analytical
reports.
1 Soil Disposal Letter 2 HWA GEOSCIENCEs INC.
' November 21, 2007
HWA Project No. 2006-067
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Table 1
Analytical results
Sample ID
Date
Depth (ft bgsj
Petroleum Hydro arbons (mg/kg)
Diesel
'Heavy Oil
Sample 1
9/7/07
N/A
290
32
SP-1A
9/12/07
N/A
160
<40
SP-1 B
9/12/07
N/A
<20
<40
SP-1 C
9/12/07
N/A
<20
<40
SP-1 D
9/12/07
N/A
<20
<40
SP-1 E
9/12/07
N/A
<20
<40
SP-2A
9/12/07
N/A
<20
<40
SP-2B
9/12/07
N/A
250
<40
SP-2C
9/12/07
N/A
290
<40
SS-1-091707
9/17/07
1.5
<20
<40
SS-2-091707
9/17/07
6
<20
<40
Trench-1-091907
9/19/07
3
<20
<40
Trench-2-091907
9/19/07
8
<20
<40
Stock ile-3-091907
9/19/07
N/A
<20
<40
Stock ile-4-091907
9/19/07
N/A
<20
<40
Trench-5-091907
9/19/07
10
77
<40
Trench-1-092707
9/27/07
10
<20
<40
Stock ile-2-092707
9/27/07
N/A
<20
<40
Stock ile-3-092707
9/27107
N/A
<20
<40
Stock ile-4-092707
9/27/07
N/A
260
<40
Stock ile-5-092707
9/27/07
N/A
<20
<40
Stockpile-6-092707
9/27/07
N/A
<20
<40
MTCA A
2000
2000
MTCA A - Department of Ecology Model Toxics Control Act (MTCA) cleanup levels, Chapter
173-340 WAC, Method A soil cleanup levels, shown for reference only.
Mg/kg — milligrams per kilogram
< - not detected at listed reporting limit
Bold —Analyte detected
Ft bgs — Feet Below Ground Surface
N/A = Not Applicable
Results listed above indicated no concentrations above MTCA cleanup levels. Laboratory
analytical reports are included as Attachment A.
SOIL DISPOSAL
Based on the initial analytical results from September 7 and 12, 2007, HWA assisted the City in
selection of alternative soils disposal for petroleum -affected soils. Ecology classifies soils
containing petroleum hydrocarbons below 200 mg/kg as `Class 2 soils, suitable for backfill at the
original site, fill in commercial or industrial areas or beneath roadways, or cover or fill at
permitted landfills (Ecology, 1995). Soils with greater than 200 mg/kg petroleum are classified as
`Class 3' soils, and are suitable for backfill at the original site, beneath roadways, cover or fill at
permitted PCS landfills, or treatment. Because the excavated soils were either not necessary or
suitable for on -site use, the City chose to dispose of petroleum -affected soils through treatment.
Lafarge's thermal treatment facility in Seattle, Washington was selected for soil disposal of
petroleum -affected soils identified at the site.
Soil Disposal Letter
3
HWA GEOSCIENCES INC.
November 21, 2007
HWA Project No. 2006-067
Soils determined to be petroleum -affected based on excavation and stockpile sampling were
transported to Lafarge's facility by Laser Underground, the City's general contractor. A total of
1008.67 tons of soil were transported to Lafarge between September 24 and October 3, 2007. A
summary of Laser Underground's transport and disposal documentations is included as
Attachment B.
IREPORTING
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Pursuant to MTCA regulations (Chapter 173-340-300 WAC), owners and operators are required to
report the discovery of a release of hazardous substances that may pose a threat to human health or
the environment. Because petroleum concentrations detected were well below MTCA cleanup
levels for unrestricted use, reporting of this site is not likely required.
LIMITATIONS
The conclusions expressed by HWA are based solely on material referenced in this report.
Observations were made under the conditions stated. Within the limitations of scope, schedule
and budget, HWA attempted to execute these services in accordance with generally accepted
professional principles and practices in the area at the time the report was prepared. No warranty,
expressed or implied, is made. Experience has shown that subsurface soil and ground water
conditions can vary significantly over small distances. It is always possible that contamination
may exist in areas that were not sampled. HWA's findings and conclusions must not be
considered as scientific or engineering certainties, but rather as our professional opinion
concerning the significance of the limited data gathered and interpreted during the course of the
assessment.
This report has been prepared on behalf of Gray & Osborne and the City of Renton, for the
specific application to the subject property. We are not responsible for the impacts of any changes
in environmental standards, practices, or regulations subsequent to performance of services. We
do not warrant the accuracy of information supplied by others, nor the use of segregated portions
of this report.
ISoil Disposal Letter 4 HWA GEOSCiENCES INC.
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November 21, 2007
HWA Project No. 2006-067
We appreciate the opportunity to provide professional services on this project. Please feel free to
call us if you have any questions or need more information.
Sincerely,
HWA GEOSCIENCES INC.
Vance Atkins, LG, LHG Arnie Sugar,
Senior Hydrogeologist Vice Preside
Cc: Daniel Carey, City of Renton
Attachments:
Figure 1 — Site Location Map
Figure 2 — Site Plan and Trench Sampling Locations
Attachment A — Laboratory Analytical Reports
Attachment B — Soil Disposal Documentation
Soil Disposal Letter
5
HWA GEOSCIENCES INC.
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VICINITY MAP
RENTON VILLAGE STORM
SYSTEM IMPROVEMENTS
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r� rr �r r� Mr r �r r� rr �r r� rr Ir rr sr rr rr s r
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4'x6' BOX CULVERT
7232000010
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�I HWAGEOSCIENCES INC.
Trench
-1-091907 — 8' bgs
e - Trench-2-091707 — 3' bgs Trench-1-092707— 10' bgs
t Trench-3-091707 —10' bgs i
SITE PLAN AND TRENCH SAMPLING LOCATIONS IGURE NO.
RENTON VILLAGE STORM SYSTEM IMPROVEMENTS
SOUTH GRADY WAY PROJECT NO.
RENTON, WASHINGTON 2006-067
ATTACHMENT A
LABORATORY ANALYTICAL REPORTS
072222 Soil Test Results-Summary.xls Sheets
1
Renton Village Stone System SWP-27-2711 October 1, 2007
D. Carey
Soil Test Results for Hydrocarbons
Total Tests =
21
Number w/ TPH detected =
5
NWTPH-dx Motor Oil
Date
Location
Sample #
(ppm) (ppm)
Comments
09/07/2007 Soil stockpile
1
290
Barry B, from stockpile returned from Cadman
09/12/2007
Stockpile
SP-1A
160
Vance-HWA, from Stockpile 1
"
SP-1 B
nd
"
"
SP-1 C
nd
"
"
SP-1 D
nd
"
"
SP-1 E
nd
"
"
SP-2A
nd
Vance-HWA, from Stockpile 2
"
SP-2B
250
"
"
SP-2C
290
"
Stockpiles taken to LaFarge for incineration
09/17/2007
Trench
SS-1-091707
nd
Vance-HWA, from end of trench
"
SS-2-091707
nd
" "
No Detects, ok to take spoils to Cadman
09/19/2007
Trench
Trench-1-091907
nd
D. Carey, Appx 8 ft down
"
Trench-2-091907
nd
Appx 3 ft down
stockpile
Stockpile-3-091907
nd
New stockpile, north end
stockpile
Stockpile-4-091907
nd
New stockpile, south end
Trench
Trench-5-091907
77
Appx 10 ft down, about box culvert invert
Results less than 200 ppm, ok to take to
Cadman
09/27/2007
Trench
Trench-1-092707
nd
D. Carey, At 42" concrete pipe elevation
Large Pile
Stockpile-2-092707
nd
SE corner, large pile
Large Pile
Stockpile-3-092707
nd
NE corner, large pile
Large Pile
Stockpile-4-092707
nd
SW corner, large pile
Large Pile
Stockpile-5-092707
260
NW corner, large pile
Small Pile
Stockpile-6-092707
nd
Small stockpile from today, east side
Told Laser to take 1 or 2 loads from NW
corner to LaFarge. Remainder to Cadman
I
HWAQ-0SCIENCES INC.1
PRO"ED 4x6l BGX CULVERT I
SITE PLAN AND SAMPLING Loc-ATIONS
RENTON VILLAGE-STORM.SYSTEM'IMPROVEMENTS
SOUTH"GRADYIWAY.
RENTON, WASHINGTON
NO,
2006-067
PROPOSED 4'x6' BDX CULVERT
7c3c"57000�8
d CINEMA
HWAGEOSCIENCES INC.
9-23-0-�
S a nlpl G Lo c c.' ,.,-r
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pr{Vj'&Fas -5 4vt,- p 1 ICJ , 2
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SITE PLAN AND SAMPLING" LOCATIONS FIGURE NO.
RENTON VILLAGE STORM SYSTEM IMPROVEMENTS
SOUTH GRADY WAY PROTECT NO
RENTON, WASHINGTON 2006-067
Chain of Custody Record & Laboratory Analysis Request
ARI Assigned Number
Turn -around Requested:
3
Page: of
I
Date Ice '; ',.
O Present?
N of Cooler n
Coolers: Temps ('
Analytical Resources, Incorporated
Analytical Chemists and Consultants
4611 South 134th Place, Suite 100
Tukwila, WA 98168
206-695-6200 206-695-6201 (fax)
ARI C rent Comp . P ne:
�P �S f�G O��ot3
Client ct:
�,
Client Project Name:
Analysis Requested
Notes/Comments
V
Client Project #O 3 �
Samplers:
Sample ID
Date
Time
Matrix
No. Containers
Comments/Special Instructions
L_
Relinquis y:
eceived b :
Si ure) `
Relinquished by:
(Signature)
Received by:
(Signature)
PRFted Name:
r✓
r n Name: //
%l l C�Cr'`i �'�
Printed Name:
Printed Name:
Company:
Company:
Company:
Company:
&Date &1--o-7!v 3�
Date & Tlme:
Dale & Tirne:
Date & Time:
Limits of Liability. ARI will perform all requested services in accordance with appropriate methodology following ARI Standard Operating Procedures and the ARI Quality Assurance Program. This program
meets standards for the industry. The total liability of ARI, its officers, agents, employees, or successors, arising out of or in connection with the requested services, shall not exceed the Invoiced amount for
said services. The acceptance by the client of a proposal for services by ARI release ARI from any liability in excess thereof, not withstanding any provision to the contrary in any contract, purchase order or co-
signed agreement between ARI and the Client.
Sample Retention Policy: All samples submitted to ARI will be appropriately discarded no sooner than 90 days after receipt or 60 days after submission of hardcopy data, whichever is longer, unless alternate
retention schedules have been established by work -order or contract.
I I
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Analytical Resources, Incorporated
Analytical Chemists and Consultants Cooler Receipt
ARI Client !�L, toS kylle- Project Name: ?1eAJ*t-
COC No: Delivered by: 4-01
Assigned ARI Job. No: 2- Tracking No:
Prelftninary..8kam-1hation Phase:
Were intact, properly signed and dated custody seals attached to the outside of to cooler? YES
Were custody papers included with the cooler? .............. ....................................... I ....... NO
Were cust d ............................. YE NO
.0. y papers.properly filled out (ink, signed, etc.)- ........
Record cooler temperature (recommended 2.0=6.0 'C for chemistry.. ............................ 4&)4 *C,
Cooler Accepted. b - Date: Time: Al/
Complete c&�tody fonns and attach. all shipping documents
Log-ln.Phase.
Was.a terhipe'rature blank included in the cooler? ........................................................
YES
What kind of packing. material was used? ..................
Rcj
Was sufficient ice used .(if appropriate)? ....................................................................
YES
Were all bottles sealed in individual plastic bags? ..........................................................
YES
Did all bottle -arrive in good condition (unbroken)? ................................................ ..................
a
NO
Were all bottle labels complete and legible? .................................................................
YES
NO
Did all bottle labels and tags agree with custody papers? ........ .....................................
YES
NO
Were all bottles used correct for the requested analyses? ....................................................
NO
Do any of the analyses (bottles) require preservation? (attach preservation checklist) .......
YES
Were all VOC vials free of airbubbles? ......................................................
YES
NO
Was sufficient amount of sample sent in each bottle? ............... I .....................................
NO
Samples Logged b Date: /�& - - Time:
Notify Project Manager of discrepancies or concerns
Explain discrepancies or negative responses:
By Date:
001 6F Cooler Receipt Form Revision 008
2/6/2007
'
ANALYTICAL
RESOURCES Q
ORGANICS ANALYSIS DATA SHEET
INCORPORATED
DIESEL RANGE HYDROCARBONS
'TOTAL
NWTPHD by GC/FID QC
Report No:
L062-Gray & Osborne,
Inc
Page 1 of 1
Project:
Renton
Matrix: Soil
05731
Date
Received: 09/07/07
Data Release Authorized:
Reported: 09/11/07 !/
Extraction
Analysis
EFV
ARI ID Sample ID Date
Date
DL Range
RL Result
MB-091007 Method Blank 09/10/07
09/11/07
1.00 Diesel
5.0 < 5.0 U
07-18731 HC ID: ---
FID3A
1.0 Motor Oil
10 < 10 U
o-Terphenyl
55.1%
L062A SAMPLE 1 09/10/07
09/11/07
1.00 Diesel
5.4 32
'
07-18731 HC ID: DRO/MOTOR OIL
FID3A
1.0 Motor Oil
11 290
o-Terphenyl
69.1%
Reported in mg/kg (ppm)
'
EFV-Effective Final Volume in mL.
DL-Dilution of extract prior to analysis.
RL-Reporting limit.
'
Diesel quantitation on total peaks in
the range
from C12 to C24.
Motor Oil quantitation on total peaks
in the range
from C24 to C38.
HC ID: DRO/RRO indicates results of organics or
additional hydrocarbons in
'
ranges are not identifiable.
'
ANALYTICAL
RESOURCES
INCORPORATED
TPHD SURROGATE RECOVERY SUMMARY
Matrix: Soil
QC Report No: L062-Gray & Osborne, Inc
'
Project: Renton
05731
Client ID
OTER TOT OUT
091007M3S
55.1% 0
091007LCS
56.7% 0
'
091007LCSD
SAMPLE 1
56.7% 0
69.1% 0
_
LCS/MB LIMITS QC LIMITS
(OTER) = o-Terphenyl
(50-116) (49-109)
Prep Method: SW3550B
Log Number Range: 07-18731 to 07-18731
1
-
Page 1 for L062
FORM -II TPHD
ANALYTICAL
RESOURCES
ORGANICS ANALYSIS DATA SHEET
INCORPORATED
NWTPHD by GC/FID
Sample ID: LCS-091007
'
page 1 of 1
LCS/LCSD
Lab Sample ID: LCS-091007
QC Report No: L062-Gray & Osborne,
Inc
ID: 07-18731
Project: Renton
'LIMS
Matrix: Soil
05731
Data Release Authorized:
Date Sampled: NA
Reported: 09/11/07
Date Received: NA
'
Date Extracted LCS/LCSD: 09/10/07
Sample Amount LCS:
10.0 g
LCSD:
10.0 g
Date Analyzed LCS: 09/11/07 09:17
Final Extract Volume LCS:
1.0 mL
LCSD: 09/11/07 09:33
LCSD:
1.0 mL
'
Instrument/Analyst LCS: FID3A/JGR
Dilution Factor LCS:
1.00
LCSD: FID3A/JGR
LCSD:
1.00
LCS Spike
LCSD
'Spike
Range LCS Added-LCS
Recovery LCSD Added-LCSD
Recovery
RPD
Diesel 78.9 150
52.6% 78.1 150
52.1%
1.0%
ITPHD Surrogate Recovery
LCS LCSD
o-Terphenyl 56.7% 56.7W
Results reported in mg/kg
' RPD calculated using sample concentrations per SW846.
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FORM III
ANALYTICAL
RESOURCES
INCORPORATED
TOTAL
DIESEL RANGE HYDROCARBONS -EXTRACTION
REPORT
ARI Job: L062
Matrix: Soil
Project: Renton
Date Received: 09/07/07
05731
Client
Final
Prep
ARI ID
Client ID Amt
Vol Basis
Date
07-18731-091007MBI
method Blank 10.0 g
1.00 mL -
09/10/07
07-18731-091007LCS1
Lab Control 10.0 g
1.00 mL -
09/10/07
07-18731-091007LCSD1
Lab Control Dup 10.0 g
1.00 mL -
09/10/07
07-18731-LO62A
SAMPLE 1 9.17 g
1.00 mL D
09/10/07
mw
1
Basis: D=Dry Weight W=As
Received
Diesel Extraction Report
1
1
1
1
1
1
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;Lis f.. F��Jj ti''^•. Y � T �ri44 -Jan
2930 Westlake Ave N Suite 100
Seattle, WA 98109
T: (206) 352-3790
F: (206) 352-7178
info@fremontanalytical.com
HWA GeoSciences
Attn: Vance Atkins
19730 64`h Ave. W. Suite 200
Lynnwood, WA 98036
RE: Renton Village
Fremont Project No: CHM070912-1
September 13th, 2007
Enclosed are the analytical results for the samples submitted to Fremont Analytical. Examination of these
soil samples was conducted for the presence of Diesel and Heavy Oil by NWTHP-DX/DX Ext.
These applications were performed under Washington State Department of Ecology accreditation
parameters. All appropriate Quality Assurance / Quality Control method parameters have been applied.
Please contact the laboratory if you should have any questions about the report
Thank you for using Fremont Analytical!
Sincerely,
,4(t9 4
Michael Dee
Sr. Chemist / Principal
mikedee@fremontanalytical.com
www.fremontanalytical.com
1
2930 Westlake Ave. N., Suite 100
Seattle, WA 98109
T: 206.352.3790
F: 206.352.7178
email: info@fremontanalytical.com
Analvsis of Diesel and Heavy Oil in Soil by NWTPH-Dx / Dx Ext.
'
Project: Renton Village
Client: HWA GeoSciences Inc.
Client Project #: 2006-067
Fremont Analytical Project #: CHM070912-1
'
NWTPH-Dx/Dx Ext.
(mg/kg)
MRL
Method
Blank
SP-1A
SPAB
SP-1C
SP-1113
Date Extracted
09/12/07
09/12/07
09/12/07
09/12/07
09/12/07
Date Analyzed
Matrix
09/12/07
Soil
09/12/07
Soil
09/12/07
Soil
09/12/07
Soil
09/12/07
Soil
Diesel (Fuel Oil)
40
nd
nd
nd
nd
nd
'
Mineral Oil
40
nd
nd
nd
nd
nd
Heavy Oil
40
nd
160
nd
nd
nd
Surrogate Recoveries
(Surr 1 ) 2-Fluorobiphenol 78% 82% 79% 81 % 81 %
(Surr 2) o-Terphenol 76% 94% 132% 102% 86%
' "C" Indicates coelution with sample peaks
"nd" Indicates no detection at the listed reporting limits
"int" Indicates interferences prevent determination
' "MRL" Indicates Method Reporting Limit.
Acceptable Recovery Limits for Surrogates: 65% to 135%
1
CONFIDENTIAL
1
2930 Westlake Ave. N., Suite 100
Seattle, WA 98109
T: 206.352.3790
F: 206.352.7178
email: info@fremontanalytical.com
Analvsis of Diesel and Heavv Oil in Soil by NWTPH-Dx / Dx Ext.
Project: Renton Village
Client: HWA GeoSciences Inc.
Client Project #: 2006-067
Fremont Analytical Project #: CHM070912-1
Dupl
r
NWTPH-Dx/Dx Ext.
MRL
Method
SP-1E
SP-2A
SP-2B
SP-2B
(mg/kg)
Blank
Date Extracted
09/12/07
09/12/07
09/12/07
09/12/07
09/12/07
Date Analyzed
09/12/07
09/12/07
09/12/07
09/12/07
09/12/07
Matrix
Soil
Soil
Soil
Soil
Soil
Diesel (Fuel Oil)
40
nd
nd
nd
nd
nd
'
Mineral Oil
40
nd
nd
nd
nd
nd
Heavy Oil
40
nd
nd
nd
250
290
Surrogate Recoveries
(Surr 1 ) 2-Fluorobiphenol
78%
79%
81%
79%
81%
(Surr 2) o-Terphenol
76%
80%
82%
84%
84%
' 'C" Indicates coelution with sample peaks
"nd" Indicates no detection at the listed reporting limits
"int" Indicates interferences prevent determination
r"MRL" Indicates Method Reporting Limit.
Acceptable Recovery Limits for Surrogates: 65% to 135%
r
1
r
r
CONFIDENTIAL
r
2
2930 Westlake Ave. N., Suite 100
Seattle, WA 98109
T: 206.352.3790
F: 206.352.7178
email: info@fremontanalytical.com
Analysis of Diesel and Heavy Oil in Soil by NWTPH-Dx / Dx Ext.
Project: Renton Village
Client: HWA GeoSciences Inc.
Client Project M 2006-067
Fremont Analytical Project #: CHM070912-1
NWTPH-Dx/Dx Ext.
MRL Method
SP-2C
SP-21D
SP-2E
(mg/kg)
Blank
Date Extracted
09/12/07
09/12/07
09/12/07
09/12/07
Date Analyzed
09/12/07
09/12/07
09/12/07
09/12/07
Matrix
Soil
Soil
Soil
Soil
' Diesel (Fuel Oil) 40 nd nd nd nd
Mineral Oil 40 nd nd nd nd
Heavy Oil 40 nd nd nd 130
Surrogate Recoveries
(Surr 1 ) 2-Fluorobiphenol 78% 78% 79% 81%
(Surr 2) o-Terphenol 76% 101% 82% 85%
"C" Indicates coelution with sample peaks
"nd" Indicates no detection at the listed reporting limits
"int" Indicates interferences prevent determination
"MRL" Indicates Method Reporting Limit.
Acceptable Recovery Limits for Surrogates: 65% to 135%
CONFIDENTIAL
9
W
Ull�ia
HWAGEOSCIENCES INC. Chain of Custody
19730641, Ave. W., Suite 200, Lynnwood, WA 98036 (425)774-0106 and Laboratory Analysis Request
45
PROJECT NAME: ' A--, aAi Ul!, .AJ L . #:
SITE CODE:
SAMPLERS NAME: Pn-y-t^, PHONE:
SAMPLERS SIGNATURE: G 6r
HWA CONTACT• �c PHONE:
Its
I e_
# OF
LJ\AfA QARADI C In nATF TIME MATRIX I AR In ROTTI F
ANALYSIS
DATE:I
PAGE: 1 of
REMARKS
Elm
Mill Mill
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Received by:
DISTRIBUTION: WHITE - Return to HWA; YELLOW - Retain by Lab; PINK - Retain by Sampler
1
1
1
2930 Westlake Ave N Suite 100
Seattle, WA 98109
T: (206) 352-3790
F: (206) 352-7178
info@fremontanalytical.com
HWA GeoSciences
Attn: Vance Atkins
19730 64" Ave. W. Suite 200
Lynnwood, WA 98036
RE: Renton Storm Water
Fremont Project No: CHM070917-1
September 18th, 2007
Enclosed are the analytical results for the samples submitted to Fremont Analytical. Examination of these
soil samples was conducted for the presence of Diesel and Heavy Oil by NWTHP-Dx/DX Ext
These applications were performed under Washington State Department of Ecology accreditation
parameters. All appropriate Quality Assurance / Quality Control method parameters have been applied.
Please contact the laboratory if you should have any questions about the report.
Thank you for using Fremont Analytical!
Sincerely,
Michael Dee
Sr. Chemist / Principal
mikedee@fremontanalytical.com
www.fremontanalytical.com
'I
2930 Westlake Ave. N., Suite 100
Seattle, WA 98109
T: 206.352.3790
F: 206.352.7178
email: info@fremontanalytical.com
Analysis of Diesel and Heavy Oil in Soil by NWTPH-Dx / Dx Ext.
Project: Renton Storm Water
Client: HWA GeoSciences Inc.
Client Project #: 2006-067
Fremont Analytical Project #: CHM070917-1
Dupl
NWTPH-Dx/Dx Ext.
MRL Method
SS-1-091707
SS-2-091707
SS-2-091707
(mg/kg)
Blank
Date Extracted
09/17/07
09/17/07
09/17/07
09/17/07
Date Analyzed
09/17/07
09/17/07
09/17/07
09/17/07
Matrix
Soil
Soil
Soil
Soil
Diesel (Fuel Oil) 20 nd nd nd nd
Mineral Oil 40 nd nd nd nd
Heavy Oil 40 nd nd nd nd
Surrogate Recoveries
(Surr 1 ) 2-Fluorobiphenol 92% 112% 111% 112%
(Surr 2) o-Terphenol 95% 120% 120% 121%
"C" Indicates coelution with sample peaks
"nd" Indicates no detection at the listed reporting limits
"int" Indicates interferences prevent determination
"MRL" Indicates Method Reporting Limit.
Acceptable Recovery Limits for Surrogates: 65% to 135%
CONFIDENTIAL
if M. r,
HWAGChain of CustodyE�SCIENCES INC. and Laboratory Analysis Request DATE:
19730 64" Ave. W., Suite 200, Lynnwood, WA 98036 (425)774-0106,
4500 Kruse Way, Suite 300, Lake Oswego, OR 97035 (503)675-2424 PAGE: Of
PROJECT NAME: #: TNIuN �slnrl-� Z.�oL—ova- ANALYSIS REQUESTED
SITE CODE:
SAMPLERS NAME: A-ri" -s, PHONE:
SAMPLERS SIGNATURE: eld'
HWA CONTACT: I/ —k= ,�-1� , r--� PHONE:
# OF
MATc TIAAC IIAATMIV 1 AR Ill 0n=1 C
REMARKS
J��
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DISTRIBUTION: WHITE - Return to HWA; YELLOW - Retain by Lab; PINK- Retain by Sampler
1
1
1
1
1
ElFre.m.ont
imp MUM MCI
2930 Westlake Ave N Suite 100
Seattle, WA 98109
T: (206) 352-3790
F: (206) 352-7178
info@fremontanalytical.com
HWA GeoSciences
Attn: Vance Atkins
19730 64t' Ave. W. Suite 200
Lynnwood, WA 98036
City of Renton
Attn: Daniel Carey
Renton City Hall — 5"' floor
1055 South Grady Way
Renton, WA 98057
RE: Renton Village Storm Water
Fremont Project No: CHM070919-1
September 19th, 2007
Enclosed are the analytical results for the samples submitted to Fremont Analytical. Examination of these
soil samples was conducted for the presence of Diesel and Heavy Oil by NWTHP-Dx/DX Ext.
These applications were performed under Washington State Department of Ecology accreditation
parameters. All appropriate Quality Assurance / Quality Control method parameters have been applied.
Please contact the laboratory if you should have any questions about the report
Thank you for using Fremont Analytical!
Sincerely,
,tf&
Michael Dee
Sr. Chemist / Principal
mikedee@fremontanalytical.com
www.fremontanalytical.com
^crr i
t: C. 31 .ax
2930 Westlake Ave. N., Suite 100
Seattle, WA 98109
T: 206.352.3790
F: 206.352.7178
email: info@fremontanalytical.com
Analysis of Diesel and Heavy Oil in Soil by NWTPH-Dx 1 Dx Ext.
Project: Renton Village Storm Water
Client: HWA GeoSciences Inc.
Client Project #: N/A
Fremont Analytical Project #: CHM070919-1
NWTPH-Dx/Dx Ext.
MRL Method
Trench-1-091907
Trench-2-091907
Stockpile-3-091907
(mglkg)
Blank
Date Extracted
09/19/07
09/19/07
09/19/07
09/19/07
Date Analyzed
09/19/07
09/19/07
09/19/07
09/19/07
Matrix
Soil
Soil
Soil
Soil
Diesel (Fuel Oil) 20 nd nd nd nd
Mineral Oil 40 nd nd nd nd
Heavy Oil 40 nd nd nd nd
Surrogate Recoveries
(Surr 1 ) 2-Fluorobiphenol 101% 102% 104% 105%
(Surr 2) o-Terphenol 111 % 112% 116% 115%
"C" Indicates coelution with sample peaks
'
"nd" Indicates no detection at the listed reporting limits
"int" Indicates interferences prevent determination
"MRL" Indicates Method Reporting Limit.
Acceptable Recovery Limits for Surrogates: 65% to 135%
CONFIDENTIAL
2930 Westlake Ave. N., Suite 100
Seattle, WA 98109
T: 206.352.3790
F: 206.352.7178
email: info@fremontanalytical.com
Analysis of Diesel and Heavy Oil in Soil by NWTPH-Dx / Dx Ext.
Project: Renton Village Storm Water
Client: HWA GeoSciences Inc.
Client Project #: N/A
Fremont Analytical Project #: CHM070919-1
Dupl
NWTPH-Dx/Dx Ext.
MRL Method
Stockpile-4-091907
Trench-5-091907
Trench-5-091907
(mg/kg)
Blank
Date Extracted
09/19/07
09/19/07
09/19/07
09/19/07
Date Analyzed
09/19/07
09/19/07
09/19/07
09/19/07
Matrix
Soil
Soil
Soil
Soil
Diesel (Fuel Oil) 20 nd nd nd nd
Mineral Oil 40 nd nd nd nd
Heavy Oil 40 nd nd 72 77
Surrogate Recoveries
(Surr 1 ) 2-Fluorobiphenol 101% 104% 102% 102%
(Surr 2) o-Terphenol 111 % 113% 111 % 111 %
"C" Indicates coelution with sample peaks
' "nd" Indicates no detection at the listed reporting limits
"int" Indicates interferences prevent determination
"MRL" Indicates Method Reporting Limit.
' Acceptable Recovery Limits for Surrogates: 65% to 135%
CONFIDENTIAL
M
Fremont Analytical, Inc. CftCn °`�'I Chain of Custody Record
2930 Westlake Ave. N. Suite 100 Tel: 206-352-3790
Seattle, WA 98109 Fax: 206-352-7178 /
%� 1 %-� }- Page: I
Date: of:
Client: j r l� O �Q h b•,.� a n r i2j C 6 rc � Project Name:
Address: Location:
City, State, Zip Tel: 4_30- 47-13 Collected by:
C.c : Vohce, A+k.,,s i VRzKws @ iiwA e e-0 coe,'i
Reports To PM): nC ¢ Fax: Email: Project No:
d C,ac2
r Q Ci'.
RHion .00, US
�` v O�
C� �Vz �Ory �Ory Q� Qr \� wry^
Sample Name
Time
Sample
Type
Q�
Container w� Q Q y(` �� ��
Type p° Comments/De th
1� Qnc 6- I - o ii
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Sat
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6
7
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9
10
Sample Receipt:
Special Remarks
Relin hed Datefrime I Rec ' c�Date/Time:
�� 0; 0 2. % 0 Z
Good?
Acceptable Temp?
X r
(24HR
Relinquished DatelTime ReceivVd Daterrime:
Seals Intact?:
Total Number of Containers:
X x
TAT -> 48HR Standard
Distribution. While - Lab, Yellow - Flle• Pink - Originator
I�
I
1�
•'nY
2930 Westlake Ave N Suite 100
Seattle, WA 98109
T: (206) 352-3790
F: (206) 352-7178
info@fremontanalytical.com
City of Renton
Attn: Daniel Carey
Renton City Hall — 5' floor
'
1055 South Grady Way
Renton, WA 98057
HWA GeoSciences
Attn: Vance Atkins
'
19730 64"' Ave. W. Suite 200
Lynnwood, WA 98036
RE: Renton Village Storm Water Project
Fremont Project No: CHM070927-1
September 28th, 2007
Enclosed are the final analytical results for the samples submitted to Fremont Analytical. Examination of
these soil samples was conducted for the presence of Diesel and Heavy Oil by NWTHP-Dx/DX Ext.
with Silica Gel Clean-up.
These applications were performed under Washington State Department of Ecology accreditation
parameters. All appropriate Quality Assurance / Quality Control method parameters have been applied.
Please contact the laboratory if you should have any questions about the report.
Thank you for using Fremont Analytical!
Sincerely,
Michael Dee
' Sr. Chemist / Principal
mikedee@fremontanalytical.com
www.fremontanalytical.com
P..�L":i44ri'1:ikA1� @S ass �a r
2930 Westlake Ave. N., Suite 100
Seattle, WA 98109
T: 206.352.3790
F: 206.352.7178
email: info@fremontanalytical.com
Analysis of Diesel and Heavy Oil in Soil by NWTPH-Dx / Dx Ext.
Project: Renton Village Stormwater Project
Client: City of Renton
Client Project #:
Fremont Analytical Project #: CHM070927-1
'
NWTPH-Dx/Dx Ext. MRL Method
Trench 1-092707
Stockpile 2-092707
(mg/kg) Blank
at 42" Pile
SE
Date Extracted 09/27/07
09/27/07
09/27/07
'
Date Analyzed 09/27/07
09/27/07
09/27/07
Matrix Soil
Soil
Soil
Diesel (Fuel Oil) 20 nd
nd
nd
'
Mineral Oil 40 nd
nd
nd
Heavy Oil 40 nd
nd
nd
'
Surrogate Recoveries
(Surr 1 ) 2-Fluorobiphenol 98%
106%
107%
(Surr 2) o-Terphenol 131 %
120%
129%
'
"C" Indicates coelution with sample peaks
"nd" Indicates no detection at the listed reporting limits
'
"int" Indicates interferences prevent determination
"MRL" Indicates Method Reporting Limit
Acceptable Recovery Limits for Surrogates: 65% to 135%
i
1
1
1
I
CONFIDENTIAL
1
1
11
2930 Westlake Ave. N., Suite 100
Seattle, WA 98109
T: 206.352.3790
F: 206.352.7178
email: info@fremontanalytical.com
Analysis of Diesel and Heavy Oil in Soil by NWTPH-Dx / Dx Ext.
Project: Renton Village Stormwater Project
Client: City of Renton
Client Project #:
Fremont Analytical Project #: CHM070927-1
NWTPH-Dx/DX Ext.
MRL Method
Stockpile 3-092707
Stockpile 4-092707
(mg/kg)
Blank
Sw
Date Extracted
09/27/07
09/27/07
09/27/07
Date Analyzed
09/27/07
09/27/07
09/27/07
Matrix
Soil
Soil
Soil
Diesel (Fuel Oil) 20 nd nd nd
Mineral Oil 40 nd nd nd
Heavy Oil 40 nd nd nd
Surrogate Recoveries
(Surr 1 ) 2-Fluorobiphenol 98% 108% 108%
(Surr 2) o-Terphenol 131 % 122% 123%
"C" Indicates coelution with sample peaks
"nd" Indicates no detection at the listed reporting limits
"int" Indicates interferences prevent determination
"MRL" Indicates Method Reporting Limit
Acceptable Recovery Limits for Surrogates: 65% to 135%
r
r
1
1
r
r
r
CONFIDENTIAL
r
2
2930 Westlake Ave. N., Suite 100
Seattle, WA 98109
T: 206.352.3790
F: 206.352.7178
email: info@fremontanalytical.com
Analysis of Diesel and Heavy Oil in Soil by NWTPH-Dx / Dx Ext.
Project: Renton Village Stormwater Project
Client: City of Renton
Client Project #:
Fremont Analytical Project #: CHM070927-1
NWTPH-Dx/Dx Ext.
MRL Method
Stockpile 5-092707
Stockpile 6-092707
(mg/kg)
Blank
Date Extracted
09/27/07
09/27/07
09/27/07
Date Analyzed
09/27/07
09/27/07
09/27/07
Matrix
Soil
Soil
Soil
1 Diesel (Fuel Oil) 20 nd nd nd
Mineral Oil 40 nd nd nd
Heavy Oil 40 nd 260 nd
1
k
Surrogate Recoveries
(Surr 1 ) 2-Fluorobiphenol 98% 107% 106%
(Surr 2) o-Terphenol 131 % 133% 122%
"C" Indicates coelution with sample peaks
'.nd" Indicates no detection at the listed reporting limits
"int" Indicates interferences prevent determination
"MRL" Indicates Method Reporting Limit
Acceptable Recovery Limits for Surrogates: 65% to 135%
CONFIDENTIAL
3
1
1
1
1
1
1
1
1
-11af
2930 Westlake Ave. N., Suite 100
Seattle, WA 98109
T: 206.352.3790
F: 206.352.7178
email: info@fremontanalytical.com
Analysis of Diesel and Heavy Oil in Soil by NWTPH-Dx / Dx Ext.
Project: Renton Village Stormwater Project
Client: City of Renton
Client Project #:
Fremont Analytical Project #:
CHM070927-1
Duplicate
NWTPH-Dx/Dx Ext.
MRL Method
Stockpile 6-092707
(mg/kg)
Blank
Date Extracted
09/27/07
09/27/07
Date Analyzed
09/27/07
09/27/07
Matrix
Soil
Soil
Diesel (Fuel Oil) 20 nd nd
Mineral Oil 40 nd nd
Heavy Oil 40 nd nd
Surrogate Recoveries
(Surr 1 ) 2-Fluorobiphenol 98% 109%
(Surr 2) o-Terphenol 131 % 125%
"C" Indicates coelution vvith sample peaks
"nd" Indicates no detection at the listed reporting limits
"int" Indicates interferences prevent determination
"MRL" Indicates Method Reporting Limit
Acceptable Recovery Limits for Surrogates: 65% to 135%
CONFIDENTIAL
4
M M M M w M M r s M M M M M M M M M M
Fremont Analytical, Inc.
Chain of Custody Record
2930 Westlake Ave. N. Suite 100 Tel. 206-352-3790
Seattle, WA 96109 Fax: 206-352-7178
�- 2
q
Date:
Page: t
of:
Client: C1ax 4 R-wii4oh
Project Name: RGt Vr1 !<�G
��frP+\wt.7(1
Address:
Location. Re ; l = W aZ;k- £
- ? ��•. cl C4 4 Z `�
City State ZipGQOi
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e1: 425- L130- � ?_�i 3
Collected by: ��f. �, ,, ( Cti <<r
C,C ; ve,hcR "^S '
��tt.e,n1- II
Reports To PM : Gn r• C� Ga f o 01 C I'Fax- Email: C
C a t r @ C i . fah�o� • Wt J 5 Project No:
�4�,
Nr
Sample
Container
oU �ry�O �O'1 QZ
Sample Name
Time
Type
Type
O J J J
2 Q Q 0
Comments/Depth
a gz2l pHr-
Hu1
a+ k2^p;lc.
),IV,,
(b ' 4 9
Soil
T r 19-2-4
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STaG�*(�il� z-o9z3D-4
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/%.off
NIJ Cornuy
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6 S 1�oit 1�C2" - 0cl ��D
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7 .
8
9
10
Sample Receipt:
Special Remarks
RelloKished Date/Time Rec ve Daterrime:
x /2 !? xCO
Good?
Acceptable Temp?
Relinquished Date/Time Received Date/Tim :
Seals Intact?:
Total Number of Containers:
x x
TAT > 24HR 48HR Standard
Distribuiton White - Lab, Yellow - File, Pink - Originator
ATTACHMENT B
SOIL DISPOSAL DOCUMENTATION
Page 1 of 3
C.O. #2
Contract Change Order Billing
City of Renton C.O. #2 - "Haul and Dispose. of Petroleum Contaminated Soils"
i CO-2A -
Office Costs for estimator to track costs and develop change order. Lump Sum $961.00
CO-2B -
Cost to load and truck soil disposal facility, at $408.56 per trip as stated on Contract
Change Order Agreement.
> CO-2C -
Di .posal cost at the Lafarge North America, Inc. incinerator billed at $33.88 per ton as
stated on Contract Change Order Agreement. With supporting scale tickets from
Lafarge as required.
9-24-07
Itemized
Billing
Trip #
Ticket#
Tons
1
021323
36.449
2
021324
26.71
3
021330
32.56
4
02'1332
25.89
5
021333
35.08
6
021335
24.68
7
021336
31.53
8
021339
25.21
9
021340
33.09
10
021341
23.64
11
021344
32.72
12
021348
23.16
13
021349
30.32
14
021351
22.62
15
021352
34.68
16
021353
23.33
17
021354
33.77
Trips
Tons
Totals 17
495.48
Laser Underground Utilities Inc.
Page 2 of 3
'
P.O. #2
9--25-07 Ite—M zed Bill ng
'
Tr Q # Ticket# Tans
1 02I363 32.G5
2 02I366. 29�.34
3 021367 33.80 .
4 02136:9 33.48
021373 31.94
6 021374 2 9. 42
Trips Tons � E �
Totals
7 g 189.93
9-2607 Itemized Billing
Trip # Ticket# Tons
1 02 im8- 31 84.
2 021384 29.05
3 02I3$6 32.44
4 02,1387 32.53
5 02,1388 31.81
6 021392 34.26
'
7 021394 31.14
Trips Tons
'
Totals
7 223.07
9-27-07 Itemized Billing
Trip ....#. Ticket# Tons
1 021406 32.71
Trips Tons
Totals
1 32.71
10-03-07 Itemized Billing
t.
Trip # Ticket# Tons
1 021551 31.18
2 021560 36.30
Trips Tons_
Totals
2 67.48
'
Laser Underground Utilities Inc.
E
Page 3 of 3
C.O. ##2
Total Cost for C.O.2-A - Lump Sum at $961.00
Total Trips for C.O.2B - 4 00 Trips at $408.56 per trip = $13/891.04
Total Tons for C.O. 2C- 1008.67 Tons at $33.88 a ton = $34,173.74
Total Cost for C.O. #2
49,025.74 � r
Laser Underground Utilities Inc.
ti
Reni6n
Village.Storm
AggregAd
Reeonciliation`
Export
T o Lafarge
Quantify
Dafe
Vendor Tcket #
(Tons)
09/24/07
21323
21330.
32 56.
21332 m -
25.89
21333` -.
3.5`08
21335- .
3466
21336
31 53;
21339
20 21
21340:
33.09
21341
23:642
2
21348` ._
23:16
21 M9 ' `
30.32
21351' `
22.62
21352'
34 638;
3 21`53
21354 ' '
33.77
09/25/07
21363
32:05
21$66
2924
21367
33.90.
21369
21373
31.84
21374
29.42
09126/07
21382 -
31.84
21384
29.05
21386
32.44
21387
32.53
21388
31.8-1
21392`
24-26
31.14
09/27/0732.71
10/03/07
21560
36.30 [ e
is
1668.67