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HomeMy WebLinkAboutReg 2012-08-20 Item 6C - Resolution - Notice of Intent for North Highline AnnexationCOUNCIL AGENDA SYNOPSIS Meeting Date Prepared by 05/21/12 I 7P 06/11/12 I JP 06/25/12 I .7P 08/20/12 I )P Initials ITEM NO. Mayor's review Council review 6.C. I I ITEM INFORMATION STAFF SPONSOR: MINNIE DHALIWAL ORIGINAL AGENDA DATE: 5/21/12 AGENDA ITEM TITLE Tukwila's Potential Annexation Area(PAA) -North Highline CATEGORY Discussion Motion Resolution Ordinance Bid Award Public Hearing Other Mtg Date 8/20/12 Mtg Date Mtg Date 8/20/12 Mtg Date Mtg Date Mtg Date Mtg Date SPONSOR Council Mayor HR DCD Finance Fire IT P&'R Police PW' SPONSOR'S Adopt the resolution authorizing staff to submit Notice of Intent to annex with the SUMMARY Boundary Review Board. REVIEWED BY COW Mtg. CA &P Cmte F &S Cmte Utilities Cmte Arts Comm. Parks Comm. DATE: COMMITTEE CHAIR: RECOMMENDATIONS: SPONSOR /ADMIN. Department of Community Development COMMITTEE Committee of the Whole COST IMPACT FUND SOURCE EXPENDITURE REQUIRED AMOUNT BUDGETED Fund Source: Comments: MTG. DATE 05/21/12 06/11/12 6/25/12 8/20/12 MTG. DATE 05/21/12 6/11/12 6/25/12 8/20/12 Transportation Cmte Planning Comm. APPROPRIATION REQUIRED RECORD OF COUNCIL ACTION City Council accepted the 10% petition and authorized circulation of 60% petition Forward to 6/25/12 for public hearing Hold the Public Hearing IUluf m:I►Ti1 :4Zk Informational Memorandum dated 5/17/12 Detailed procedures and flowchart of the petition method of annexation 10% petition including the map and legal description of the proposed annexation area *Due to the situation evolving at agenda production time, updated information will be provided prior to the Council meeting. Informational Memorandum dated 6/20/12 including Attachments A -G Informational Memorandum dated 8/15/12 including Attachments A -D 63 M City of Tukwila Jim Haggerton, Mayor INFORMATIONAL MEMORANDUM FROM: BY: DATE: SUBJECT: ISSUE Mayor Haggerton Committee of the Whole Jack Pace, Department of Community Development Director Minnie Dhaliwal, Planning Supervisor August 15, 2012 Tukwila's Potential Annexation Area North Highline. Should the City submit a Notice of Intent to annex with the Boundary Review Board for Tukwila's Potential Annexation Area (PAA) North Highline? BACKGROUND On June 25, 2012, City Council held a public hearing on the annexation petition. The annexation petition was received from the property owners representing at least 60% of the assessed value of the proposed annexation area of Tukwila's PAA. After the public hearing City Council decided to schedule another meeting for staff to report back with additional information regarding: a) potential contamination and LEOFF1 liability issues; b) MPD tax; c) provide a zoning map for the entire city. The meeting minutes from the public hearing are included as Attachment D. DISCUSSION A. Potential Risks and Liabilities There are two areas of risk/liability related to the PAA overlap area: (1) Contamination issues and (2) LEOFF 1 liabilities. Each of these is addressed below: Environmental Liabilities: An unknown risk is whether or not there is any environmental contamination in the right -of -ways or public storm drains and /or ditches in this area. This is due to the area being part of the Lower Duwamish Waterway (LDW) Federal Superfund Site. In 2001, the entire Lower Duwamish Waterway (LDW) was declared a Superfund Site. due to high levels of contamination, particularly PCBs in the river sediments. In 2002, the LDW was identified as a Model Toxics Control Act (MTCA) site by Washington Department of Ecology. EPA is overseeing the remedial activity at the LDW and Ecology is in charge of source control. Several early action areas were identified as priority areas for cleanup, but the proposed annexation area was not one of these early action areas. However two portions of the LDW within the annexation area, one at S 96 St and one near S Director St have been identified as areas of greater concern based primarily on PCB levels in river sediments that are above sediment quality standards. Ecology has two source control areas in the annexation area. The northern portion is within the SeaKing Industrial Park source control area and the southern portion is in the West Restoration source control area. Neither has been considered a high priority area for source control. INFORMATIONAL MEMO Page 2 Ecology and the EPA identify potential sources of contamination that may be impacting the waterway. These potential sources include historical or current commercial industrial operations, contaminants entering the waterway from spills during product shipping and handling as well as surface runoff and storm water discharge. Through this identification process Potentially Responsible Parties (PRPs) will be identified to contribute to the clean -up efforts. The current owner or operator of the site will be named as a PRP (CERCLA Section 107(a)(1)). Therefore, this implicates the City in areas of ownership, upon annexation, such as streets and storm water outfalls. Under both state and federal law the owner /operator of an outfall is liable for contamination that is discharged from that outfall. This can also apply to upland drainage systems which contain contaminants. Public Works Department entered into a contract with PBS, a consulting firm, to do an initial sampling and testing of the storm water system in the annexation area. The amount of contamination in the right -of -way is difficult to assess without doing significant amount of testing. The memo prepared by staff from Public Works Department and the report prepared by PBS is included as Attachment B. These test results indicate that the contamination levels are generally consistent with those found in urban areas and do not appear to be highly contaminated. Public Works Department has recommended that if the City annexes this area all storm drainage systems be cleaned with the material disposed of appropriately and then the City should work with the Department of Ecology to perform source control inspections to reduce the amount of contaminants entering the storm system. After the initial cleaning of the system is completed the annual stormwater fees collected from the area are expected to cover the annual maintenance required for this area including additional disposal costs. Fire District Asset Transfer and LEOFF 1 Liability When a city annexes an area served by a Fire District, the city takes over responsibility for fire service for the annexed area. State Law provides for transfer of assets and liabilities between the District and the City. Asset transfer rules are designed to ensure that the taxpayers in the Fire District are treated equitably upon annexation. Asset Transfer Rules If More than 60% of Area Annexed If less than 6496, If less than 5% Ilf 100% more than 5% Fire Transfers all assets and proportional share of liabilities to District City 4. City City pays District for share of assets based on remaining AV District continues to No exchanges District is dissolved own assets transfer of AV to Al I assets and City (can be or liabilities transfer assets) For annexations involving more than 5% but less than 60% of the District's area, the District will be required to transfer at least some of its assets to the City. These transfer payments are to ensure that the taxpayers in the annexed area get to "take with them" the assets that they have INFORMATIONAL MEMO Page 3 funded over the years. General obligation debt is not affected as these debts are to remain with taxpayers as though no annexation had occurred. Thus they are treated as liabilities of the taxpayer and not the District. North Highline Fire District Assessed Value and Area Breakdown Area Total AV Percent Burien Annexation Area $1,483,881,817 92.9% Tukwila Annexation Area $113,195,300 7.1% Remainder( "Sliver on the River") $18,661,400 1.2% Total $1,597,077,117 100.0% Gross Acres Percent 2,050 93.4% 146 6.6% 27 1.2% 2,196 100% Tukwila's annexation area would represent 6.6% of the North Highline Fire District service area and 7.1 of the District's assessed value. Based on these percentages the city would not be responsible for any of the District's liabilities, though taxpayers in the annexation area would continue to be responsible for the District's general obligation debts. Operationally the City would be capable of serving the area within its existing levels of service and staffing levels. LEOFF 1 Lona -Term Medical Liabilitv. The North Highline Fire District currently has 11 retired fire fighters in the LEOFF1 retirement program. These LEOFF1 participants are entitled to full coverage of health care costs, including out -of- pocket expenses. According to a State Attorney General opinion, these LEOFF1 medical liabilities are not subject to the asset transfer rules. B. MPD Tax City Council had asked staff to report back and confirm if the annexed area would be subject to the Metropolitan Pool District tax. The annexed area would be subject to MPD tax in the amount of $.15/$1000 of assessed valuation. It is important to note that the timing when the annexation becomes effective determines when the city is able to collect taxes. C. Zoning Map If the Council decides to annex this area, they must also adopt the zoning for the area. Tukwila's Comprehensive Plan designated this area as Manufacturing Industrial Center /Heavy (MIC /H) and two parcels west of 14 Ave S and south of S. Director St are designated as Manufacturing Industrial Center /Light (MIC /L). The staff report for June 25 meeting included comprehensive plan map of the annexation area, but Council asked for an overall map of the city to see all the areas that are zoned MIC /H and MIC /L. The city's zoning map is included as Attachment C. FINANCIAL IMPACT Anticipated revenue and expenditure analysis was provided at the public hearing on June 25, 2012. The anticipated revenue projections for this area are approximately $487,000 per year for general fund and $81,000 per year for storm water enterprise fund. These projections are approximate and do not include utility tax, as data showing actual usage was not available at this time. Also, the exact number of employees in the area could not be ascertained at this time. 67 INFORMATIONAL MEMO Page 4 Financial risks associated with potential contamination responsibility are similar to Fire District 1 annexation, when the city annexed all the industrial land along East Marginal Way S. RECOMMENDATION Staff recommends that City Council adopt the attached resolution authorizing staff to file a notice of intent to annex with the Boundary Review Board (BRB). NEXT STEPS After the Council makes a decision on the annexation, staff will prepare an annexation packet for submission to the Boundary Review Board (BRB). Analysis of how the proposed annexation complies with Growth Management Act, County Wide Planning Policies, and BRB review criteria (RCW 36.93.170) is required to be submitted with the Notice of Intent to annex. After BRB approval, the City Council shall adopt an ordinance annexing the area to the City of Tukwila and adopting the zoning for the area. ATTACHMENTS Attachment A: Resolution authorizing staff to file the notice of intent to annex with BRB along with Exhibit 1 (legal description) and Exhibit 2 (map) Attachment B: Memo from Public Works Department regarding storm system sediment analysis along with report prepared by PBS. Attachment C: Zoning map of Tukwila Attachment D: City Council meeting minutes from the public hearing date June 25, 2012. M Ar "'C" A ff W, a Resolution No. OF ,Q 3hington WHEREAS, on May 17, 2012, the City of Tukwila received a Notice of Intent pursuant to RCVV 35A.14.120 to annex certain real property commonly referred to as Tukwila's portion of the North Highline Potential Annexation Area and WHEREAS, the Notice of Intent was signed by the owners of the property representing at least 10% in value (according to the assessed valuation for general taxation) of the real property, and WHEREAS, on May 21, 2012, the City Council accepted the 10% request and authorized circulation of a 60% petition for annexation and required both simultaneous adoption of zoning and assumption of all existing City indebtedness and WHEREAS, on June 5, 2012, the property owners representing at least 60% of the assessed value of the proposed annexation area submitted their petition to commence annexation proceedings and WHEREAS, pursuant to RCW 35A.01.040(4), the petition was submitted to the King County Department of Assessments for determination as to the sufficiency of signatures thereon; and WHEREAS, on June 6, 2012, the King County Assessor, Lloyd Hara, determined that the petition contains the signatures of the owners of 60% of the assessed valuation of the property located within the annexation area, and so notified the City of Tukwila of that determination in writing; and VV Mord Processing-City\Resolutioi Ffighline PAA-accept 60'X, petition 3 -13-12 MD bps Page 1 of M PO WHEREAS, on June 20, 2012, the City of Tukwila held an informational open house as an opportunity for the public to obtain information about the proposed annexation; and 70 WHEREAS, on June 25, 2012, the City Council of the City of Tukwila held a public hearing following publication of notice thereof as provided in RCW 35A.14.130; and WHEREAS, the Washington State Growth Management Act and King County Countywide Planning Policies anticipate all unincorporated areas within a City's urban growth area will eventually be annexed; and WHEREAS, in 1995 Tukwila adopted Ordinance No. 1757, which adopted a Comprehensive Land Use Plan and Map for the City of Tukwila that identified approximately 166 acres within the unincorporated North Highline area as a potential annexation area (PAA) for the City; and WHEREAS, the City of Seattle has designated a PAA that includes all of the unincorporated North Highline area, a portion of which overlaps with Tukwila's PAA; and WHEREAS, King County Countywide Planning Policy LU -32 establishes a process for resolving PAA overlaps, and beginning on April 6, 2011, Tukwila, Seattle and King County participated in the required mediation to resolve the overlap dispute. There was no resolution of the overlap issue; therefore the City is able to pursue annexation under state law, having met the procedural prerequisite of mediation; and WHEREAS, the City Council has determined the annexation to be consistent with the Growth Management Act, including RCW 36.70A.110(1)1 NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF TUKWILA, WASHINGTON, HEREBY RESOLVES AS FOLLOWS: Section 1. Accept 60% Annexation Petition. The City of Tukwila hereby accepts the 60% petition for the approximately 166 acres of real property known as Tukwila's portion of the North Highline Potential Annexation Area, which is legally described in Exhibit A and depicted on the map in Exhibit B, both of which are attached hereto. Section 2. Assumption of Debt/Taxation. All property within the territory annexed pursuant to Section 1 shall be assessed and taxed at the same rate and on the same basis as other property in the City of Tukwila is assessed and taxed, to pay for the now outstanding indebtedness to the City contracted prior to or existing at the time of annexation. Section 3. Simultaneous Adoption of Zoning. The City declares its intention to adopt zoning simultaneous with annexation. The zoning for Tukwila's portion of the North Highline Annexation Area will be established consistent with the City's Comprehensive Plan. W: \Word Processing- City \Resolutions \North Highline PAA- accept 60% petition 8 -13 -12 MD:bjs Page 2 of 3 Section 4. Notice of Intent to Boundary Review Board. The Community Development Director is hereby authorized and instructed to prepare and submit a Notice of Intent to annex to the Washington State Boundary Review Board for King County as soon as practical in order to obtain approval for the annexation. The aforementioned authority is hereby authorized and directed to take such other steps with respect to said Notice of Intent or otherwise as deemed necessary to implement the annexation in Section 1 of this resolution. PASSED BY THE CITY COUNCIL OF THE CITY OF TUKWILA, WASHINGTON, at a Regular Meeting thereof this day of 2012. ATTEST /AUTHENTICATED: Christy O'Flaherty, MMC, City Clerk Verna Seal, Council President APPROVED AS TO FORM BY: Shelley M. Kerslake, City Attorney Filed with the City Clerk: Passed by the City Council: Resolution Number: Attachments: Exhibit A Legal description of the proposed annexation area Exhibit B Map of the proposed annexation area W: \Word Processing- City \Resolutions \North Highline PAA- accept 60% petition 8 -13 -12 MD:bjs Page 3 of 3 71 72 EXHIBIT A PROPOSED ANNEXATION AREA THOSE PORTIONS OF THE SOUTHEAST QUARTER OF SECTION 32 AND SOUTHWEST QUARTER OF SECTION 33, TOWNSHIP 24 NORTH, RANGE 4 EAST, W.M., AND OF THE NORTHWEST QUARTER OF SECTION 4 AND NORTHEAST QUARTER OF SECTION 5, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M., KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: BEGINNING AT THE INTERSECTION OF WESTERLY MARGIN STATE ROUTE 99 WITH THE NORTH LINE OF TRACT 55 OF MOORE'S FIVE ACRE TRACTS AS RECORDED IN VOLUME 9 OF PLATS, PAGE 28, RECORDS OF KING COUNTY WASHINGTON; THENCE EASTERLY ALONG SAID NORTH LINE OF TRACT 55 AND CONTINUING ALONG THE EASTERLY EXTENSION THEREOF TO THE THREAD OF THE DUWAMISH WATERWAY; THENCE NORTHERLY ALONG SAID THREAD OF THE DUWAMISH WATERWAY TO THE EASTERLY EXTENSION OF THE SOUTH LINE OF MCNATT' S 1 ST ADDITION TO SOUTH PARK HEIGHTS AS RECORDED IN VOLUME 9 OF PLATS, PAGE 9, RECORDS OF KING COUNTY, WASHINGTON, SAID LINE ALSO BEING THE EASTERLY EXTENSION OF THE PRESENT LIMITS OF THE CITY OF SEATTLE; THENCE WESTERLY ALONG SAID SOUTH LINE AND ALONG SAID LIMITS OF THE CITY OF SEATTLE TO THE EAST MARGIN OF 12 AVENUE SOUTH; THENCE SOUTHERLY ALONG THE EXTENSION OF SAID EAST MARGIN OF 12 AVENUE SOUTH AND CONTINUING ALONG THE PRESENT LIMITS OF THE CITY OF SEATTLE TO THE SOUTH MARGIN OF SOUTH CAMBRIDGE STREET EXTENDED EASTERLY; THENCE WESTERLY ALONG THE EXTENSION OF SAID SOUTH MARGIN OF SOUTH CAMBRIDGE STREET EXTENDED AND CONTINUING ALONG THE PRESENT LIMITS OF THE CITY OF SEATTLE TO THE INTERSECTION OF THE SOUTH LINE OF EXCELSIOR ACRE TRACTS NO. 2 AS RECORDED IN VOLUME 9 OF PLATS, PAGE 48, RECORDS OF KING COUNTY, WASHINGTON WITH THE WESTERLY MARGIN OF SAID STATE ROUTE 99; THENCE LEAVING SAID PRESENT LIMITS OF THE CITY OF SEATTLE, SOUTHEASTERLY ALONG SAID WESTERLY MARGIN OF STATE ROUTE 99 TO THE 73 EXHIBIT A INTERSECTION WITH THE EAST LINE OF THE WESTERLY 178.51 FEET OF TRACT 8 OF SAID MOORE'S FIVE ACRE TRACTS; THENCE SOUTHERLY ALONG SAID EAST LINE TO THE NORTH MARGIN OF SOUTH 96 STREET; THENCE EASTERLY ALONG SAID NORTH MARGIN OF SOUTH 96 STREET TO THE INTERSECTION WITH THE WESTERLY MARGIN OF STATE ROUTE 99; THE SOUTHEASTERLY ALONG SAID WESTERLY MARGIN OF STATE ROUTE 99 TO THE INTERSECTION WITH THE NORTH LINE OF SAID TRACT 55 OF MOORE'S FIVE ACRE TRACTS AND THE POINT OF BEGINNING. 74 e dt %zls M46 aZzk I e� i 11jo DORI ovlg�\ 4V S St 55211 S St 41 4 m 1 St 102nd St S 103rd St 500 76 City of Tukwila Jim Haggerton, Mayor MEMORANDUM To: Bob Giberson From: Ryan Larson Date: June 26, 2012 Subject: North Highline Annexation Storm System Sediment Analysis PBS Engineering and Environmental has completed an analysis of the North Highline Annexation area storm water system. This analysis consisted of reviewing previous testing results for the area and sampling and testing sediment from five locations. The locations were chosen to give a representative sampling of the entire area and determine what areas may have contamination that will require special handling and disposal costs. PBS determined that sediments within the storm system do not appear to be highly contaminated and the contamination levels. are generally consistent with those found in urban environments. The contaminants of concern that were identified are RCRA priority metals (particularly arsenic, chromium, lead, silver, and zinc), total petroleum hydrocarbons (TPH) in the heavy oil category, and polynuclear aromatic hydrocarbons (PAHs). PAHs and TPHs appear to be originating within the annexation area, while metals are coming from both within and upstream of the annexation area. It is recommended that if the City annexes this area, all storm drainage systems be cleaned with the material disposed of in an approved manner. For the system that feeds S. 96 St. pipe and the material within the ditch in front of the wrecking yard, this material will need to be disposed of at an approved landfill. Tipping fees for this material is currently $125 per ton vs. $80 per ton for standard vactor waste at the King County site. Sediments in Hamm Creek and the ditch along West Marginal Way were all below thresholds so they will not require special handling or additional disposal costs. Once the system has an initial cleaning, the City should work with the Department of Ecology to perform source control inspections to reduce the amount of contaminants entering the storm system. Future cleaning efforts will also require additional testing and may require disposal at an approved landfill. Once the initial cleaning of the system is completed, the estimated $82,500 in additional surface water fees is expected to cover the annual maintenance required for this system including additional disposal costs. CC: Jack Pace Pat Brodin Attachment: North Highline Annexation Storm System Sediment Analysis W' \PW Eng \OTHER \Ryan Larson \Memos \North Highline Annexation Storm System.doc Attachment B 77 0 Engineering PB c Environmental North Highline Annexation Storm System Sediment Analysis City of Tukwila, WA Prepared for: Ryan Larson Public Works Department City of Tukwila 6300 Southcenter Boulevard Tukwila, WA 98188 July 27, 2012 Project No. 40407.02 Bend I Boise I Coquille I Eugene I Portland I Seattle I Tri- Cities I Vancouver 2517 Eastlake Avenue East, Suite 100, Seattle, WA 98102 206.233.9639 M a in 206.762.4780 Fax www.pbsonv.com 79 City of Tukwila, WA North Highline Annexation Storm System Sediment Analysis TABLE OF CONTENTS 1.0 INTRODUCTION 1 2.0 BACKGROUND ..............................1 2.1 SITE DESCRIPTION 1 2.2 SITE HISTORY 1 2.3 STORMWATER SYSTEM 2 2.4 CONTAMINATION HISTORY 2 3.0 STORMWATER SEDIMENT SAMPLING 4 3.1 SAMPLING PROTOCOLS ..............................4 3.2 RESULTS ..............................5 4.0 DISCUSSION ..............................7 4.1 CHARACTERIZATION OF CONTAMINATION 7 4.2 DISPOSAL OPTIONS 8 5.0 CONCLUSIONS AND RECOMMENDATIONS 9 6.0 LIMITATIONS 9 7.0 REFERENCES 11 ATTACHMENTS A. Figures B. Regulatory Standards C. Sediment Laboratory Report Engineering PB c Environmental July 2012 Project No. 40407.020 City of Tukwila, WA North Highline Annexation Storm System Sediment Analysis 1.0 INTRODUCTION The City of Tukwila, WA (City) is actively considering annexation of a portion of King County property located along the west bank of the lower Duwamish waterway between City of Seattle property to the north and City of Tukwila property to the south. The area is referred to as the "North Highline" area or alternatively as the "Duwamish Industrial Triangle The City is currently evaluating the potential costs and liabilities associated with the annexation proposal. A concern for the City is the history of potential contamination in this area from industrial uses. The entire Lower Duwamish Waterway (LDW) is a Superfund Site, and while the North Highline area has not been identified as one of the more contaminated portions of the waterway, contamination has been found in sediment and water samples from the Duwamish waterway in the vicinity of the annexation area. The Public Works Department is specifically concerned about potential costs of taking over the King County owned stormwater sewers that flow through or drain this area if sediments removed from these pipes during regular maintenance contain high levels of contamination and require special disposal. Cleanup of the storm pipes could also be required by the Washington State Department of Ecology (Ecology) if this area is identified in a source control investigation. PBS Engineering and Environmental Inc. (PBS) has prepared this report to assist the City in evaluating the level of sediment contamination present in the King County owned stormwater system and the ramifications with regard to disposal of sediments removed during maintenance. 2.0 BACKGROUND 2.1 Site Description The North Highline area is roughly triangular in shape and borders the Lower Duwamish Waterway to the east, West Marginal Way to the south and west, and S. Director Street to the north. The annexation area also includes the interchange of Des Moines Memorial Drive and West Marginal Way. Land use within the annexation area is predominantly light industrial. Seattle City Light owns the southern third of the annexation area and has an electrical substation on this property. Other uses within the annexation area include a large boat builder, an industrial supply company, marine industries, auto repair, the Duwamish Yacht Club, wineries, a barge dock, light manufacturing and industrial shops, warehouses, and an office complex. The annexation area is located at the top (south end) of the Duwamish waterway between river miles 3.8 and 4.5. The upper turning basin which marks the end of the waterway is immediately south at river mile 4.6. Tidal influence extends up river past the turning basin. The annexation area is mostly flat with an average elevation of 20 feet above sea level. Mean higher high water of the Duwamish River at this location is approximately 9 feet. Mean lower low water is approximately -2.4 feet. Since the bottom elevation of the S 96 St. storm drain is 10 feet or more below the surface through the annexation area, it would be possible for high tides or high river levels to come into the pipe. 2.2 Site History Prior to straightening and dredging of the Duwamish River in the early 1900's, several forks of Hamm Creek used to come together in the middle of the annexation area and most of the area was likely dominated by wetlands. The Duwamish River at this location meandered across a wide floodplain and two meander loops bordered the east side of the annexation area, one near the south end and one near the north end. A 1938 aerial photograph shows the entire area in agricultural use. Industrial uses Engineering PB c Environmental July 2012 Project No. 40407.020 i City of Tukwila, WA North Highline Annexation Storm System Sediment Analysis of the waterway became dominant beginning in the 1940s and gradually expanded. The last 20 years has seen little change in land use. 2.3 Stormwater System There are three general stormwater drainage basins within the annexation area. The portion north of S 93rd St appears to drain to a stormwater pipe in S. Director Street that then discharges to a pipe that flows north under S. Dallas St. to eventually discharge to the Duwamish near S. Southern St. We assume this system is owned and managed by King County. The middle portion of the site between S. 93 St. and S. 96 St. drains into a large 72 inch diameter King County stormwater main that flows through the annexation area under S 96 St. A number of smaller pipes feed into this line. The southern portion of the site drains to Hamm Creek or directly to the Duwamish with the exception of the West Marginal Way right of way which is directed in a ditch to the stormwater main at S. 96 Street. The County identifies an area adjacent to Hamm Creek as a regional sediment pond. Several smaller stormwater pipes originating within the annexation area also drain directly to the Duwamish. Some of these systems are privately owned and maintained. There are four commercial stormwater facilities registered with the county within or immediately adjacent to the annexation area. These are owned by the Sea King Industrial Park, Pacific Industrial Supplies, Beardsley Properties and the Arco Station. The King County stormwater main that flows through the middle of the site serves a drainage basin of approximately 120 acres. Most of that basin is in residential land use, but several highways are present and there is an industrial area just west of the annexation area across West Marginal Way. 2.4 Contamination History In 2001, the entire Lower Duwamish Waterway (LDW) was declared a Superfund Site due to high levels of contamination, particularly polychlorinated biphenyls (PCBs) in the river sediments. In 2002, the LDW was identified as a Model Toxics Control Act (MTCA) site by Washington Department of Ecology (Ecology). EPA is overseeing the remedial activity at the LDW and Ecology is in charge of source control. The chemicals of greatest concern are PCBs, polycyclic aromatic hydrocarbons (PAHs), dioxins /furans, arsenic and other metals, and phthalates. Several early action areas were identified as priority areas for cleanup, but the proposed annexation area was not one of these early action areas. However, two portions of the LDW within the annexation area, one at S 96 St and one near S Director St., have been identified as areas of greater concern based primarily on PCB levels in river sediments that are above sediment quality standards. Ecology has two source control areas in the annexation area. The northern portion is within the Sea King Industrial Park source control area and the southern portion is in the West Restoration source control area. Neither has been considered a high priority area for source control. Under the Ecology source control program, a number of studies have been done within the LDW. In 2008 and 2009 sediment samples from storm drains and catch basins were analyzed. In the 96 Street storm drain, levels of Zinc, PCBs, PAHs, Phthalates, 4- Methylphenol and Benzyl alcohol were found above the sediment cleanup screening level (SCSL). At Hamm Creek levels of Zinc, Fouranthene, Phthalates, 4- Methylphenol, and TPH (diesel and oil) were above the SCSL. No further sampling was conducted in either of these locations in 2010. A study was also undertaken of sediment contamination Engineering July 2012 P B c Environmental 2 Project No. 40407.020 i City of Tukwila, WA North Highline Annexation Storm System Sediment Analysis along the banks of the Duwamish throughout the LDW (Hart Crowser, 2012). In the Sea King source control area some samples had levels of metals, PCBs and PAHs above the most stringent soil screening levels, but none above the MTCA -B soil cleanup levels. In the West Restoration source control area (Hamm Creek), there were some samples with levels of BTEX, metals and PAHs above the most stringent soil screening levels, but again none above the MTCA -B soil cleanup levels. There are currently five (5) Ecology MTCA clean -up sites listed within the annexation area or immediately proximate to it. Three of these have no further action required and are in post cleanup monitoring. Table 1 is a list of these sites. Table 1. WA Department of Ecology MTCA cleanup sites in or near annexation area Site Name Cleanup Site IQ Status Contaminant KRS Marine 4630 Cleanup complete Petroleum products monitoring ongoing Kaspac Chiyoda 2540 Cleanup complete Petroleum products monitoring ongoing Non halogenated solvents, Halogenated organics Priority metals (s) Precision Engineering 4532 Cleanup started Priority Metals Petroleum products S.96 n St. Ditch 4290 Awaiting cleanup Priority metals Petroleum products PAH Dioxin /Dibenzofuran compounds (s) Halogenated organics (s) Non halogenated solvents (s) Pesticides (s) PCBs (s) Radioactive wastes (s) Puget Sound Coatings 4109 Cleanup complete Petroleum products monitoring ongoing Ace Galvanizing 78 Awaiting cleanup Priority metals Petroleum products Corrosive wastes (s) Other reactive wastes (s) Halfon Candy Co. 229 Awaiting cleanup Priority metals Corrosive wastes (s) Other source control actions within the 96 Street basin were identified with the following businesses: Atacs Products Inc, Avidex, Filterfresh Seattle, and Advance Electroplating. Engineering P B c Environmental July 2012 Project No. 40407.020 C'� City of Tukwila, WA 3.0 STORMWATER SEDIMENT SAMPLING PBS met with the City of Tukwila on June 26, 2012 to identify potential sampling locations. A total of 5 locations were identified. These were refined during sampling based on field conditions. Sampling occurred on July 5, 2012. PBS collected sediment samples at each of the locations identified in Table 2. The sample locations are shown on Figure 2. Samples were collected from the catch basin locations using a stainless steel scoop connected to an extension pole to access the bottom of the 4 to 8 foot deep catch basins. The sediment samples collected from the open drainage ditches and Hamm Creek were collected using a steel shovel to obtain a sample from the top 1 to 3 inches below surface level. The shovel, scoop and extension pole were decontaminated using an Aloconox® spray wash between each sample location. The sampler donned a new pair of nitrile gloves between each sample. The sediment samples were collected in laboratory- supplied unpreserved 8 -ounce glass jars, and 40 -ml glass vials preserved with methanol, placed on ice in a cooler and transported to Fremont Analytical Laboratories in Seattle, Washington, with chain -of- custody documentation. Analyses were conducted under normal turnaround time. Soil samples were analyzed for total petroleum hydrocarbons for gasoline, and diesel and heavy oil using methods NWTPH -Gx and NWTPH -Dx; Volatile Organic Compounds using EPA Method 8260; Polyaromatic Hydrocarbons (PAHs) by EPA Method 8270(SIM); Polychlorinated Biphenols (PCB) using EPA Method 8082, Total Metals by EPA Method 6020; and Mercury using EPA Method 7471. 3.1 Sampling Protocols North Highline Annexation Storm System Sediment Analysis Table 2. North Highline annexation area stormwater sampling locations ID SS -1 SS -2 Description I Drainage Latitude Longitude ;I Depth I Comments Catch basin on 15 Ave S S.96 th St 47.519062 122.313633 8'T 1' -3" sediment depth 47.517801 122.309834 10'3" Very little sediment S96 th St. mainline manhole S96 th St Ditch on south side of S SS -3 96 St. near W Marginal S96 th St Way Hamm SS -4 Hamm Creek culvert Creek SS -5 Ditch south of wrecking S96 1h St yard Engineering PB c Environmental 47.517172 122.312292 1 to 3" Bottom of open ditch 47.515459 122.309936 1 to 3" East (discharge) end of culvert 47.517086 122.314419 1 to 3" Bottom of open ditch July 2012 4 Project No. 40407.020 i, City of Tukwila, WA North Highline Annexation Storm System Sediment Analysis 3.2 Results Results from the sediment sampling are presented in Table 3 and compared to the Model Toxics Control Act (MTCA) soil cleanup level A standards for industrial sites and the Washington State Department of Ecology Sediment Cleanup Screening Levels (SCSL). All samples had levels of methylene chloride, but this is attributed to the preservative used by the laboratory and is not reflective of onsite contamination. Sediments taken from both the roadside ditch (SS -3) near the intersection of South 96th St and West Marginal Way; and the Hamm Creek culvert (SS -4) on the east side of West Marginal Way did not have contamination levels above either MTCA -A or SCSL levels. Two of the sampling sites had contaminant levels above the CSL. The ditch near the wrecking yard (SS -5) had levels of silver above the SCSL and the main South 96 St storm (SS -2) pipe sediments had zinc levels above the SCSL. Two of the sample sites had contaminant levels above the MTCA -A industrial levels. The catch basin on 15 Ave. S (SS -1) had levels of NWTP -Dx, PAHs and Cadmium above MTCA -A levels. The main South 96 St storm (SS -2) had levels of arsenic and cadmium above MTCA -A levels. A summary of the detected analytical results by constituent includes the following: Petroleum as heavy oil was detected in 3 of the 5 samples (SS -1, SS -2 and SS -5), with SS -1 having the highest concentration of 2,270 mg /kg, which exceeds the MTCA Soil Cleanup Level A industrial standards. Metals (13- priority metals) were detected in each of the five samples. Sample SS -2 had the highest overall individual metal concentrations, and SS -5 had the highest silver concentration. Volatile Organic Compounds (VOCs) were not detected above laboratory reporting limits or were detected at very low concentrations. VOCs do not appear to be of concern in the sediment samples. Polynuclear Aromatic Hydrocarbons (PAHs) were detected in each of the 5 samples. PAHs concentrations were highest in SS -1, with individual concentrations above the MTCA -A levels. Polychlorinated Biphenols (PCB) were not detected above laboratory reporting limits in the samples. Engineering July 2012 P B c Environmental 5 Project No. 40407.020 i City of Tukwila, WA North Highline Annexation Storm System Sediment Analysis Table 3. Results of Stormwater Sediment Sampling (July 2012) Sample Results' Constituent 93 2 6.7 2,000 I SS -1 I SS -2 SS -3 Total Petroleum Hydrocarbons (TPH) mg /kg TPH as Gasoline I <4.36 I <16.2 <22 TPH as Heavy Oil I 2,270 I 727 <111 Metals 13 priority metals) mg /kg 0.0822 ND Antimony 0.612 I 2.28 0.875 Arsenic 5.51 I 47.8 15.5 Cadmium I 2.28 2.65 I 1.08 Chromium I 38.2 I 121 33.9 Copper I 96.5 292 51.4 Lead I 113 130 I 66.7 Nickel 28 92.8 I 35.3 Mercury ND ND I ND Silver 0.0901 3.19 ND Zinc I 751 I' 1,360 314 Volatile Organic (detected) Compounds mg /kg Methylene chloride` I 0.0414 0.221 I 0.328 Ethylbenzene ND I 0.109 I ND Styrene ND 0.359 ND Polycyclic Aromatic Hydrocarbons mg /kg Acenaphthene I 0.072 ND ND Fluorene I 0.196 ND ND Phenanthrene 3.56 I 0.189 I 0.345 Anthracene 0.894 I ND ND Fluoranthene 7.82 0.367 0.839 Pyrene I 5.68 0.342 0.690 Benz(a)anthracene(c) 3.38 0.147 0.333 Chrysene(c) 2.56 I 0.161 0.416 Benzo(b)fluoranthene(c) 4.69 0.235 0.647 Benzo(k)fluoranthene(c) I 2.57 I ND I 0.298 Benzo(a)pyrene (c) 3.34 I ND I 0.379 Ideno(1,2,3- cd)pyrene(c) 2.49 ND 0.274 Dibenz(a,h)anthracene(c) 0.527 I ND ND Benzo(g,h,i)perylene 2.65 I 0.161 0.341 Total PCBs (ug /kg) ND I ND I ND 6 20 93 2 6.7 2,000 I 270 390 1,000 I 530 2 I 0.59 I 6.1 I 960 0.02 I 6.0 57 79 480 1200 1200 1400 2 270 2 460 2 450 2 4501 2 210 2 88� 2I 33I 10 I 65 1. Sample descriptions and locations in Table 2 2. Methylene chloride detections related to methanol preservative used during sample collection method (c) Carcinogenic PAHs. The MTCA cleanup value of 2 mg /kg is the concentration of all carcinogenic PAHs. ND Not detected above laboratory reporting limit. No established value MTCA -A Method A Soil Cleanup Levels for Industrial Properties (Table 745 -1, WAC 173 340 -900). SCSL Sediment Cleanup Screening Levels (WAC 173 -204) Exceeds MTC -A for industrial use Exceeds Sediment Cleanup Screening Levels (SCSL) Engineering P p c Environmental SS-4 I SS -5 <5.48 <8.72 <43.8 100 ND 0.702 3.71 8.91 0.227 I 1.96 21.7 25.1 10.4 116 8.93 I 102 43.1 I 35.2 ND I ND ND 20.5 72.3 I 572 0.0543 I 0.111 ND ND ND I ND ND ND ND ND 0.0975 0.0988 ND ND 0.117 0202 0.0875 I 0.182 ND 0.0926 ND 0.107 ND 0.170 ND I 0.0822 ND 0.0982 ND 0.0814 ND I ND ND I 0.118 ND I ND Standards MTCA -A I SCSL Industrial 100 I 2,000 I July 2012 Project No. 40407.020 W City of Tukwila, WA North Highline Annexation Storm System Sediment Analysis 4.0 DISCUSSION Contaminants found in the stormwater system are either being generated from sources within the annexation area (SS -1, SS -2 and SS -3) or carried down gradient from higher in the watershed (SS -2, SS -4 and SS -5). While sediments might be carried into the S. 96 St pipe from the LDW during high tides or high river flows, it is unlikely that these sediments would remain in the pipe for long because flows during most of the year would be sufficient to flush them back out. During sampling, there was two feet of water in the pipe. The purpose of the testing was to determine if catch basin sediments should be considered as petroleum contaminated soils or hazardous waste under Washington Department of Ecology (Ecology) guidelines and to evaluate disposal options and re -use feasibility. The constituents of concern encountered in our sampling are total petroleum hydrocarbons (TPH) as heavy oil, Polyaromatic Hydrocarbons (PAHs), and the Resource Recovery and Conservation Act (RCRA) 13 priority metals (antimony, arsenic, cadmium, chromium, copper, lead, mercury, nickel, silver and zinc). While PCBs are a major concern throughout the LDW, they were not detected in this sampling. 4.1 Characterization of Contamination As shown in Table 3 the TPH as heavy oil detected in the catch basin sediments ranged from <43.8 to 2,270 mg /kg. The Ecology MTCA soil cleanup level A for industrial sites is 2,000 mg /kg. Any sediment with TPH above that level would be classified as petroleum contaminated soils and would require treatment or landfill disposal. Additionally, the PAH concentrations detected in sediment samples indicate that sediments contain petroleum compounds typically related to oil and grease. The carcinogenic PAH concentrations detected in sample SS -1 exceed the MTCA soil cleanup level A for industrial sites of 2 mg /kg. Based on the sample results, the detection of heavy oil /PAHs in the sediment may classify the waste as a special solid waste containing petroleum. The waste may need to be disposed of at licensed landfill facility. As shown in Table 3, there were detected metal concentrations in select catch basin sediments that exceed the MTCA -A or SCSL standards. To determine if samples should be classified as hazardous waste under Ecology's Dangerous Waste Regulations (WAC 173 303 -071), the total metal concentrations in mg /kg were compared to Toxicity Characteristic Leaching Procedure (TCLP) regulatory levels. This TCLP practice involves dilution of samples by a factor of 20, with resulting TCLP results being no greater than 1 /20 the total metals in sample. This practice is thought to establish a more reasonable estimate of metal leaching in soil. Lead concentrations in sediment samples above 100 mg /kg could potentially exceed the TCLP level for lead (5 mg /L). The remaining metal concentrations do not indicate levels that would be categorized by TCLP as hazardous waste. Contaminant levels (particularly silver and zinc) above SCSL could trigger a source control action by the Washington DOE. The source of the contamination is likely coming from private industries, but the City may still be required to clean the contaminated pipes. A comparison of stormwater sediment metal levels in the annexation area with King County stormwater sediment averages is presented in Table 4. The comparison indicates that specific metal concentrations in catch basin sediments from the Triangle Annexation Area (July 2012 Average Value) are generally greater than average levels in other stormwater systems in King County. Arsenic in particular was considerably higher (64X) than the average. Engineering July 2012 P B c Environmental 7 Project No. 40407.020 i City of Tukwila, WA North Highline Annexation Storm System Sediment Analysis Table 4. Comparison of stormwater sediment metal levels in the annexation area with local averages Annexation Area Average Local Constituent July 2012 Values* Average Value Metals I I I Arsenic I 16 I 0.25 I Cadmium I 1.6 I 0.5 I Chromium 48 I 25.8 Copper I 113 I 29 Lead I 84 I 80 Mercury I ND I NA Silver I 4.8 I NA Zinc 1 614 I 130 Values reported in mg /kg ND not detected above laboratory reporting limits Data from WA Dept of Ecology BMPS for Management and Disposal of Street Wastes. Analysis of 72 catch basin waste solids samples in King County (Herrera, 1995) 4.2 Disposal Options The reuse of street sweepings and catch basin sediments is a highly effective way for municipalities to be cost effective and environmentally responsible. However, there are state and federal regulations in place that prohibit certain uses due to potential toxins that may exist within these sediments if untreated. Specific concern goes to the RCRA 8 metals (arsenic, barium, cadmium, chromium, lead, mercury, selenium, silver) and TPH levels (total petroleum hydrocarbons). Though most RCRA 8 metals occur naturally within the environment, they do have acutely adverse environment and human health effects when found in above average concentrations. TPH exposure is almost unavoidable in a society that relies heavily on petroleum products. Currently, municipalities can landfill or store on site these materials; catch basin sediments go to drying beds and sweepings to. a Department of Public Works lot or similar controlled runoff location. According to Ecology Best Management Practices guideline: "All street waste shall be given a visual and site evaluation for obvious contaminants and an historical review for spills back to the date of the most recent cleaning. The waste site should be sampled and tested for likely hazardous waste constituents or toxicity if contamination is suspected or has been found at this site in the past. Disposal and use options of tested waste will be determined by the test results and dangerous waste rules" (Ecology 1995). If sediments are classified as non hazardous, reuse options are more open than if these sediments were to be considered hazardous material. General guidelines for reuse should: include analytical testing; remain 100 feet away from any wetland; remain 500 feet from any drinking water supply. Disposal /reuse options, without additional testing, stated in much of the literature include: "No action" Continued disposal of materials in landfills. -Daily cover at lined /unlined landfills Limited use compost additive Containment/absorption material for hazardous material spills Roadway fill or backfill Sub -fill for potholes Replacement for raw material in concrete or asphalt Engineering PB c Environmental July 2012 Project No. 40407.020 L. City of Tukwila, WA North Highline Annexation Storm System Sediment Analysis For sediments that exceed the TPH testing, on -site remediation may be possible. The bacterial decomposition that is associated with composting has been effective for reduction of contaminants. Composting "achieves some biological decomposition of organics and some thermal desorption of volatile organics. The process is relatively simple, involving windrows of material periodically wetted and turned to enhance oxidation and biological activity. Inorganics are often blended with organics in this process to prepare a suitable end product, usually topsoil or mulch." (Mathiesen, et. al., 1997) Besides composting, biological additives for biological decomposition may be used to aid attenuation. Biological degradation includes inoculating piles with soil bacteria, mycelial fungi, and nutrients. These additives aid in "nutrient cycling, waste and residue decomposition, and detoxification of environmental pollutants" (Sims, 1990). Finally, contaminants can be "immobilized" by including them as aggregates in concrete or asphalt. It may be necessary for the Washington DOE to approve alternative uses of catch basin solids. 5.0 CONCLUSIONS AND RECOMMENDATIONS Based on the limited sampling conducted and a review of past sediment sampling in this area, sediments in the storm system do not appear to be highly contaminated and contamination levels are generally reflective of urban areas. The contaminants of concern that have been identified are RCRA priority metals (particularly arsenic, chromium, lead, silver and zinc), total petroleum hydrocarbons in the heavy oil category, and PAHs. PAHs and TPHs appear to be originating within the annexation area, while metals are coming from both within and above the annexation area. The highest levels of contamination were found in the 15 Ave. S catch basin and the main S. 96 St pipe. Levels of contamination in Hamm Creek and the ditch along West Marginal Way were all below thresholds so sediment removal from these areas would have no restrictions. Sediments from the ditch by the wrecking yard had elevated levels of several metals and disposal should either be at an approved landfill or reused in a manner where the metals cannot leach out. Sediments removed from the S 96 St pipe and feeder pipes within the annexation area will need to go to an approved landfill or petroleum contaminated waste site. Cleaning of public storm drains that feed into the S 96 St. pipe is recommended. Periodic testing of the sediments from the storm pipes within the annexation area is also recommended. Ongoing source control actions by Ecology should help to reduce contaminants coming into the system. 6.0 LIMITATIONS PBS has prepared this report for use by the City of Tukwila. This report is for the exclusive use of the client and is not to be relied upon by other parties. It is not to be photographed, photocopied, or similarly reproduced in total or in part without the expressed written consent of the client and PBS. This study was limited to the tests, locations, and depths as indicated to determine the absence or presence of certain contaminants. The site as a whole may have other contamination that was not characterized by this study. The findings and conclusions of this report are not scientific certainties but, rather, probabilities based on professional judgment concerning the significance of the data gathered during the course of this investigation. PBS is not able to represent that the site or adjoining land contain no hazardous waste, oil, or other latent conditions beyond that detected or observed by PBS. Engineering July 2012 P B c Environmental g Project No. 40407.020 Rue City of Tukwila, WA PBS ENGINEERING AND ENVIRONMENTAL INC. July 27, 2012 Thomas Mergy, LG U U Date Senior Geologist Z July 27, 2012 North Highline Annexation Storm System Sediment Analysis Katharine Lee Date Senior Scientist Engineering P B c Environmental 10 July 2012 Project No. 40407.020 •I City of Tukwila, WA North Highline Annexation Storm System Sediment Analysis 7.0 REFERENCES City of Tukwila Public Works Department. 2006. East Marginal Way Plan and Profile. City of Tukwila, Tukwila, Washington. Hart Crowser. 2012. Lower Duwamish Waterway Bank Sampling Summary Report. Prepared for Washington Dept. of Ecology. Accessed online at: httas: fortress. wa. aov /ecv/ asp /Cleanur)SiteDocuments.asDx ?csid =1643 Huey, Richard. Jaunary 2004. Lower Duwamish Waterway Source Control Strategy. Washington State Department of Ecology Toxics Cleanup Program, Bellevue, WA. Publication No. 04 -09 -043. SAIC. August 2009. Lower Duwamish Waterway Source Control Status Report September 2008 to June 2009. Publication 098 -09 -183. Washington State Department of Ecology,Toxics Cleanup Program, NW Regional Office, Bellevue, WA. U.S. Environmental Protection Agency, Region 10. Lower Duwamish Site. Accessed July 2012. Washington Administrative Code. WAC 173 -201A -240 Toxic Substances WAC 173 204 -320 Sediment Quality Standards, WAC 173 -201A -240 Toxic Substances and WAC 173 204 -520 Cleanup Screening Levels. Washington State Department of Ecology. 2009. Lower Duwamish Waterway Source Control Status Report September 2008 through June 2009. Publication No. 09 -09 -183. Washington State Department of Ecology. 2011. Lower Duwamish Waterway Source Control Status Report September 2009 through June 2010. Publication No. 11 -09 -169. Washington State Department of Ecology 1995. BMPs for Management and Disposal of Street Wastes. www.worldsweer)er.com Windward Environmental. November 2007. Lower Duwamish Waterway Remedial Investigation- Maps httr): /www.er)a.aov /reaion1O /odf /sites /ldw /remedial investigation maos.r)df Accessed July 2012 Engineering PB S Environmental III July 2012 Project No. 40407.020 91 City of Tukwila, WA North Highline Annexation Storm System Sediment Analysis FIGURES Engineering PBS Environmental 92 City of Tukwila Project No 91041204 r a r+ Boeing Plant 2 Stormwater Line "Z° Investigation USGS Quadrangle: Seattle South, 1983 1 0 05 Project 40407 0120 Date: July, 2012 Engineering P p S Environmental Vicinity Map North Highline Annexation Area, King County, Washington t E s' N, 4, 3 n x mo w `it 1.0 FIGURE 1 bW City of Tukwila Project No 91041204 Boeing Plant 2 Stormwater Line "Z" Investigation 4 V —44 r 1 A SS5 LEGEND Ell Sampling Locations SS-1 15"' Ave S CB SS-2 Manhole S 96 St SS-3 S 96" St Ditch SS-4 Hamm Creek Culvert SS-5 Wrecking Yard Ditch Stormwater Pipe Outfall Ditch Stream Project 40407.020 P S Date: July, 2012 Engineering P B S Environmental Sediment Sampling Locations North Highline Annexation Area King County, WA a all City of Tukwila Project No. 91041204 Engineering PB c Environmental Boeing Plant 2 Stormwater Line "T Investigation REGULATORY STANDARDS 95 City of Tukwila Project No. 91041204 Boeing Plant 2 Stormwater Line "Z" Investigation Table 745 -1 Method A Soil Cleanup Levels for Industrial Properties! Hazardous Substance CAS Number Cleanup Level Arsenic 7440 -38 -2 20 mg /kg Benzene 71 -43 -2 0.03 mg /kg` Benzo a rene )pY 50 -32 -8 2 mg /k g Cadmium 7440 -43 -9 2 mg/kg' Chromium Chromium VI 18540 -29 -9 19 mg /kg" Chromium III 16065 -83 -1 2,000 mg /kg DDT 50 -29 -3 4 mg /kg' Ethylbenzene 100 -41 -4 6 mg /kg Ethylene dibromide (EDB) 106 -93 -4 0.005 mg /kg' Lead 7439 -92 -1 1,000 mg /kg' Lindane 58 -89 -9 0.01 mg /kg Methylene chloride 75 -09 -2 0.02 mg /kg Mercury (inorganic) 7439 -97 -6 2 mg /kg MTBE 1634 -04 -4 0.1 mg/kg' Naphthalene 91 -20 -3 5 mg/kg' PAHs (carcinogenic) See benzo(a)pyrene PCB Mixtures 10 mg /kg Tetrachloroethylene 127 -18 -4 0.05 mg /kg Toluene 108 -88 -3 7 mg /kg Total Petroleum Hydrocarbons' [Note: Must also test for and meet cleanup levels for other petroleum components- see footnotes!] Gasoline Range Organics Gasoline mixtures without benzene and 100 mg /kg the total of ethylbenzene, toluene and xylene are less than 1% of the gasoline mixture All other gasoline mixtures 30 mg /kg Diesel Range Organics 2,000 mg /kg Heavy Oils 2,000 mg /kg Mineral Oil 4,000 mg /kg 1,1,1 Trichloroethane 71 -55 -6 2 mg /kg` Trichloroethylene 79 -01 -6 0.03 mg /kg Xylenes 1330 -20 -7 9 mg /kg Engineering PB C Environmental N City of Tukwila Project No. 91041204 CHEMICAL PARAMETER ARSENIC CADMIUM CHROMIUM COPPER LEAD MERCURY SILVER ZINC LPAH (b,d) NAPHTHALENE ACENAPHTHYLENE ACENAPHTHENE FLUORENE )PHENANTHRENE ANTHRACENE 2- METHYLNAPHTHALENE HPAH (b—e) FLUORANTHENE PYRENE BENZ(A)ANTHRACENE CHRYSENE TOTAL BENZOFLUORANTHENES (b,D BENZO(A)PYRENE INDENO (1,2,3, -C,D) PYRENE DIB ENZO (A,H) ANTHRACENE BENZO(G,H, I)PERYLENE 1,2- DICHLOROBENZENE 1,4- DICHLOROBENZENE 1,2,4- TRICHLOROBENZENE HEXACHLOROBENZENE DIMETHYL PHTHALATE DIETHYL PHTHALATE DI -N -BUTYL PHTHALATE BUTYL BENZYL PHTHALATE IBIS (2- ETHYLHEXYL) PHTHALATE Engineering PBS Environmental Boeing Plant 2 Stormwater Line 'T' Investigation Sediment Qualitv Standards WAC 173- 204 -320 (a) MG /KG DRY WEIGHT (PARTS PER MILLION (PPM) DRY) 57 5.1 260 390 450 0.41 6.1 410 MG /KG ORGANIC CARBON (c) (PPM CARBON) 370 99 66 16 23 100 220 38 960 160 1,000 110 110 230 99 34 12 31 2.3 3.1 0.81 0.38 53 61 220 4.9 47 Sediment Impact Zone Maximum Level, WAC 173 204 -420 La); and Sediment Cleanup Screening Level /Minimum Cleanup Level, I WAC 173- 204 -520 (a) MG /KG DRY WEIGHT (PARTS PER MILLION (PPM) DRY) 93 6.7 1 270 390 530 0.59 6.1 1 960 MG /KG ORGANIC CARBON (c) (PPM CARBON) 780 170 66 57 79 480 j 12_00 64 5300 1 1200 3 1400 270 460 450 210 88 33 78 2.3 9 j 1.8 2.3 53 110 1700 J 64 78 97 City of Tukwila Project No. 91041204 Boeing Plant 2 Stormwater Line "Z" Investigation DI- N -OCTYL PHTHALATE 58 4500 DIBENZOFURAN 15 58 HEXACHLOROBUTADIENE 3.9 6.2 N- NITROSODIPHENYLAMINE 11 11 TOTAL PCBs 12 65 UG /KG DRY WEIGHT UG /KG DRY WEIGHT (PARTS PER BILLION (PARTS PER BILLION (PPB) (PPB) DRY) DRY) PHENOL 420 1200 2- METHYLPHENOL 63 63 4- METHYLPHENOL 670 670 2,4- DIMETHYL PHENOL 29 29 PENTACHLOROPHENOL 360 690 BENZYL ALCOHOL 57 73 BENZOIC ACID 650 650 (a) Where laboratory analysis indicates a chemical is not detected in a sediment sample, the detection limit shall be reported and shall be at or below the Marine Sediment Quality Standards chemical criteria value set in this table. Engineering P B C Environmental City of Tukwila Project No. 91041204 Engineering PB s Environmental Boeing Plant 2 Stormwater Line 'T' Investigation SEDIMENT LABORATORY REPORT +►ir F re mont E a L a 1311 N. 35th St. Seattle, WA 98103 T: (206) 352 -3790 F: (206) 352 -7178 info@fremontanalytical.com PBS Engineering Environmental Tom Mergy 2517 Eastlake Ave, E #100 Seattle, Washington 98102 RE: City of Tukwila Lab ID: 1207019 July 12, 2012 Attention Tom Mergy: Fremont Analytical, Inc. received 5 sample(s) on 7/5/2012 for the analyses presented in the following report. Diesel and Heavy Oil by NWTPH -DX /DX Ext. Gasoline by NWTPH -Gx Mercury by EPA Method 7471 Polyaromatic Hydrocarbons by EPA Method 8270 (S/M) Polychlorinated Biphenyls (PCB) by EPA 8082 Sample Moisture (Percent Moisture) Total Metals by EPA Method 6020 Volatile Organic Compounds by EPA Method 8260 This report consists of the following: Case Narrative Analytical Results Applicable Quality Control Summary Reports Chain of Custody All analyses were performed consistent with the Quality Assurance program of Fremont Analytical, Inc. Please contact the laboratory if you should have any questions about the results. Thank you for using Fremont Analytical. Sincerely, Michael Dee Sr. Chemist/ Principal www.fremontanalytical.com Pagel of 49 100 In F r emo n t gE..� CLIENT: Project: Lab Order: Lab Sample 1D 1207019 -00 1207019 -002 1207019 -003 1207019 -00 1207019 -005 PBS Engineering Environmental City of Tukwila 1207019 Date: 0711212012 Work Order Sample Summary Note: If no "Time Collected" is supplied, a default of 12:00AM is assigned Page 2 of101 Date /Time Collected Date /Time Received Client Sample ID 07/05/2012 9:45 AM 07/05/2012 1:30 PM SS -1 07/05/2012 11:00 AM 07/05/2012 1:30 PM SS -2 07/05/2012 11:30 AM 07/05/2012 1:30 PM SS -3 07/05/2012 11:50 AM 07/05/2012 1:30 PM SS -4 07/05/2012 12:45 PM 07/05/2012 1:30 PM SS -5 Note: If no "Time Collected" is supplied, a default of 12:00AM is assigned Page 2 of101 CLIENT: PBS Engineering Environmental Project: City of Tukwila I. SAMPLE RECEIPT: All samples were received intact. The internal ice chest temperatures were measured on receipt and are recorded on the attached Sample Receipt Checklist. II. GENERAL REPORTING COMMENTS: Results are reported on a wet weight basis unless dry- weight correction is denoted in the units field on the analytical report "mg /kg -dry" or "ug /kg- dry"). Matrix Spike (MS) and MS Duplicate (MSD) samples are tested from an analytical batch of "like" matrix to check for possible matrix effect. The MS and MSD will provide site specific matrix data only for those samples which are spiked by the laboratory. The sample chosen for spike purposes may or may not have been a sample submitted in this sample delivery group. The validity of the analytical procedures for which data is reported in this analytical report is determined by the Laboratory Control Sample (LCS) and the Method Blank (MB). The LCS and the MB are processed with the samples and the MS /MSD to ensure method criteria are achieved throughout the entire analytical process. III. ANALYSES AND EXCEPTIONS: Exceptions associated with this report will be footnoted in the analytical results page(s) or the quality control summary page(s) and /or noted below. Prep Comments for PREP -DX -S, Sample 1207019 -005C contains some organic material Prep Comments for PREP -DX -S, Sample 1207019 -004C contains some organic material. Prep Comments for PREP -DX -S, Sample 1207019 -003C Prep Comments for PREP -DX -S, Sample 1207019 -002C Prep Comments for PREP -DX -S, Sample 1207019 -001C Sample has a high moisture content. Sample Sample has a high moisture content. Sample Sample contains some organic material Sample has a high moisture content Sample has a high moisture content Page 3 of 49 102 Fr emoift Case Narrative W O 1207019 Date: 7/12/2012 s CLIENT: PBS Engineering Environmental Project: City of Tukwila I. SAMPLE RECEIPT: All samples were received intact. The internal ice chest temperatures were measured on receipt and are recorded on the attached Sample Receipt Checklist. II. GENERAL REPORTING COMMENTS: Results are reported on a wet weight basis unless dry- weight correction is denoted in the units field on the analytical report "mg /kg -dry" or "ug /kg- dry"). Matrix Spike (MS) and MS Duplicate (MSD) samples are tested from an analytical batch of "like" matrix to check for possible matrix effect. The MS and MSD will provide site specific matrix data only for those samples which are spiked by the laboratory. The sample chosen for spike purposes may or may not have been a sample submitted in this sample delivery group. The validity of the analytical procedures for which data is reported in this analytical report is determined by the Laboratory Control Sample (LCS) and the Method Blank (MB). The LCS and the MB are processed with the samples and the MS /MSD to ensure method criteria are achieved throughout the entire analytical process. III. ANALYSES AND EXCEPTIONS: Exceptions associated with this report will be footnoted in the analytical results page(s) or the quality control summary page(s) and /or noted below. Prep Comments for PREP -DX -S, Sample 1207019 -005C contains some organic material Prep Comments for PREP -DX -S, Sample 1207019 -004C contains some organic material. Prep Comments for PREP -DX -S, Sample 1207019 -003C Prep Comments for PREP -DX -S, Sample 1207019 -002C Prep Comments for PREP -DX -S, Sample 1207019 -001C Sample has a high moisture content. Sample Sample has a high moisture content. Sample Sample contains some organic material Sample has a high moisture content Sample has a high moisture content Page 3 of 49 102 Fremont Client: PBS Engineering Environmental Project: City of Tukwila Lab ID: 1207019 -001 Client Sample ID: SS -1 Analyses Result Diesel and Heavv Oil by NWTPH -Dx/Dx Ext. Diesel (Fuel Oil) ND 20.8 Heavy Oil 2,270 259 D Surr:2- Fluorobiphenyl 86.8 50 -150 Surr: o-Terphenyl 91.4 50 -150 Polvchlorinated Biohenvls (PCB) by EPA 8082 3,560 Aroclor 1016 ND 0.0976 Aroclor 1221 ND 0.0976 Aroclor 1232 ND 0.0976 Arocior 1242 ND 0.0976 Aroclor 1248 ND 0.0976 Aroclor 1254 ND 0.0976 Aroclor 1260 ND 0.0976 Aroclor 1262 ND 0.0976 Aroclor 1268 ND 0.0976 Total PCBs ND 0.0976 Surr: Decachlorobiphenyl 85.1 66.1 -145 Surr: Tetrachloro-m xylene 93.6 67.2 -132 Polvaromatic Hvdrocarbons by EPA Method 8270 (SIM) Naphthalene ND 2- Methyl naphthalene ND 1- Methyl naphthalene ND Acenaphthylene ND Acenaphthene 72.0 Fluorene 196 Phenanthrene 3,560 Anthracene 894 Fluoranthene 7,820 Pyrene 5,680 Benz(a)anthracene 3,380 Chrysene 2,560 Benzo(b)fluoranthene 4,690 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range 1 J Analyte detected below quantitation limits RL Reporting Limit pg /Kg -dry Analytical Report W O 1207019 Date Reported: 7/1212012 Collection Date: 7/5/2012 9:45:00 AM Matrix: Soil RL Qual Units DF Batch ID: 2746 mg /Kg -dry 1 mg /Kg -dry 5 %REC 1 %REC 1 Batch ID: 2757 mg /Kg -dry 1 mg /Kg -dry 1 mg /Kg -dry 1 mg /Kg -dry 1 mg /Kg -dry 1 mg /Kg -dry 1 mg /Kg -dry 1 mg /Kg -dry 1 mg /Kg -dry 1 mg /Kg -dry 1 %REC 1 %REC 1 Batch ID: 2747 Date Analyzed Analyst: SG 7/7/2012 3:59:00 AM 7/9/2012 12:42:00 PM 7/7/2012 3:59:00 AM 717/2012 3:59:00 AM Analyst: PH 7/11/2012 2:18:00 AM 7/11/2012 2:18:00 AM 7/11/2012 2:18:00 AM 7/11/2012 2:18:00 AM 7/11/2012 2:18:00 AM 7/11/2012 2:18:00 AM 7/11/2012 2:18:00 AM 7/11/2012 2:18:00 AM 7/11/2012 2:18:00 AM 7/11/2012 2:18:00 AM 7/11/2012 2:18:00 AM 7/11/2012 2:18:00 AM Analyst: PH 61.0 pg /Kg -dry 1 7/9/2012 9:48:00 PM 61.0 pg /Kg -dry 1 7/9/2012 9:48:00 PM 61.0 pg /Kg -dry 1 7/9/2012 9:48:00 PM 61.0 pg /Kg -dry 1 7/9/2012 9:48:00 PM 61.0 pg /Kg -dry 1 7/9/2012 9:48:00 PM 61.0 pg /Kg -dry 1 7/9/2012 9:48:00 PM 610 D pg /Kg -dry 10 7/10/2012 10:47:00 AM 61.0 pg /Kg -dry 1 7/9/2012 9:48:00 PM 610 D pg /Kg -dry 10 7/10/2012 10:47:00 AM 610 D pg /Kg -dry 10 7/10/2012 10:47:00 AM 61.0 pg /Kg -dry 1 7/9/2012 9:48:00 PM 610 D pg /Kg -dry 10 7/10/2012 10:47:00 AM 610 D pg /Kg -dry 10 7110/2012 10:47:00 AM D Dilution was required H Holding times for preparation or analysis exceeded ND Not detected at the Reporting Limit S Spike recovery outside accepted recovery limits Page 4 of 49 103 e t. r I Fremont M Analytical Report W O 1207019 Date Reported: 7/1212012 Client: PBS Engineering Environmental Collection Date: 7/512012 9:45:00 AM Project: City of Tukwila Lab ID: 1207019 -001 Matrix: Soil Client Sample ID: SS -1 Analyses Result R Qual Units D Date Analyzed Polvaromatic Hydrocarbons by EPA Method 8270 (SIM) Batch ID: 2747 Analyst: PH Benzo(k)fluoranthene 2,570 61.0 pg /Kg -dry 1 7/9/2012 9:48:00 PM Benzo(a)pyrene 3,340 610 D pg /Kg -dry 10 7/10/2012 10:47:00 AM Indeno(1,2,3- cd)pyrene 2,490 61.0 pg /Kg -dry 1 7/9/2012 9:48:00 PM Dibenz(a,h)anthracene 527 61.0 pg /Kg -dry 1 7/9/2012 9:48:00 PM Benzo(g,h,i)perylene 2,650 61.0 pg /Kg -dry 1 7/9/2012 9:48:00 PM Surr: 2- Fluorobiphenyl 78.2 50.4 -142 %REC 1 7/9/2012 9:48:00 PM Surr: Terphenyl -d14 (surr) 84.0 48.8 -157 %REC 1 7/9/2012 9:48:00 PM Gasoline by NWTPH Gx Batch ID: R4944 Analyst: EM Gasoline ND 4.36 mg /Kg -dry 1 7/9/2012 4:41:00 AM Surr: 1,2- Dichloroethane -d4 95.6 65 -135 %REC 1 7/9/2012 4:41:00 AM Sum Fluorobenzene 98.8 65 -135 %REC 1 71912012 4:41:00 AM Volatile Organic Comoounds by EPA Method 8260 Batch ID: 2759 Analyst: EM Dichlorodifluoromethane (CFC -12) ND 0.0523 mg /Kg -dry 1 7/9/2012 4:41:00 AM Chloromethane ND 0.0523 mg /Kg -dry 1 7/9/2012 4:41:00 AM Vinyl chloride ND 0.00174 mg /Kg -dry 1 7/9/2012 4:41:00 AM Bromomethane ND 0.0784 mg /Kg -dry 1 7/9/2012 4:41:00 AM Trichlorofluoromethane (CFC -11) ND 0.0436 mg /Kg -dry 1 7/9/2012 4:41:00 AM Chloroethane ND 0.0523 mg /Kg -dry 1 7/9/2012 4:41:00 AM 1,1- Dichloroethene ND 0.0436 mg /Kg -dry 1 7/9/2012 4:41:00 AM Methylene chloride 0.0414 0.0174 mg /Kg -dry 1 7/9/2012 4:41:00 AM trans- 1,2- Dichloroethene ND 0.0174 mg /Kg -dry 1 7/9/2012 4:41:00 AM Methyl tert-butyl ether (MTBE) ND 0.0436 mg /Kg -dry 1 7/9/2012 4:41:00 AM 1,1- Dichloroethane ND 0.0174 mg /Kg -dry 1 7/9/2012 4:41:00 AM 2,2- Dichloropropane ND 0.0436 mg /Kg -dry 1 7/9/2012 4:41:00 AM cis -1,2- Dichloroethene ND 0.0174 mg /Kg -dry 1 7/9/2012 4:41:00 AM Chloroform ND 0.0174 mg /Kg -dry 1 7/9/2012 4:41:00 AM 1,1,1 Trichloroethane (TCA) ND 0.0174 mg /Kg -dry 1 7/9/2012 4:41:00 AM 1,1- Dichloropropene ND 0.0174 mg /Kg -dry 1 719/2012 4:41:00 AM Carbon tetrachloride ND 0.0174 mg /Kg -dry 1 7/9/2012 4:41:00 AM 1,2- Dichloroethane (EDC) ND 0.0261 mg /Kg -dry 1 7/9/2012 4:41:00 AM Benzene ND 00174 mg /Kg -dry 1 7/9/2012 4:41:00 AM Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits Page 5 of 49 104 Fremont te"MOM! Analytical Report W O 1207019 Date Reported: 7/1212012 Client: PBS Engineering Environmental Collection Date: 7/5/2012 9:45:00 AM Project: City of Tukwila Lab ID: 1207019 -001 Matrix: Soil Client Sample ID: SS -1 Analyses Result RL Qual Units DF Date Analyzed Volatile Oroanic Compounds by EPA Method 8260 Batch ID: 2759 Analyst: EM Trichloroethene (TCE) ND 0.0261 mg /Kg -dry 1 7/9/2012 4:41:00 AM 1,2- Dichloropropane ND 0.0174 mg /Kg -dry 1 7/9/2012 4:41:00 AM Bromodichloromethane ND 0.0174 mg /Kg -dry 1 7/9/2012 4:41:00 AM Dibromomethane ND 0.0349 mg /Kg -dry 1 7/9/2012 4:41:00 AM cis -1,3- Dichloropropene ND 0.0174 mg /Kg -dry 1 7/9/2012 4:41:00 AM Toluene ND 0.0174 mg /Kg -dry 1 7/9/2012 4:41:00 AM trans -1,3- Dichloropropylene ND 0.0261 mg /Kg -dry 1 7/9/2012 4:41:00 AM 1,1,2 Trichloroethane ND 0.0261 mg /Kg -dry 1 7/9/2012 4:41:00 AM 1,3- Dichloropropane ND 0.0436 mg /Kg -dry 1 7/9/2012 4:41:00 AM Tetrachloroethene (PCE) ND 0.0174 mg /Kg -dry 1 7/9/2012 4:41:00 AM Dibromochloromethane ND 0.0261 mg /Kg -dry 1 7/9/2012 4:41:00 AM 1,2- Dibromoethane (EDB) ND 0.00436 mg /Kg -dry 1 7/9/2012 4:41:00 AM Chlorobenzene ND 0.0174 mg /Kg -dry 1 719/2012 4:41:00 AM 1,1,1,2 Tetrachloroethane ND 0.0261 mg /Kg -dry 1 7/9/20124:41: 00 AM Ethylbenzene ND 0.0261 mg /Kg -dry 1 7/9/2012 4:41:00 AM m,p- Xylene ND 0.0174 mg /Kg -dry 1 7/9/2012 4:41:00 AM o-Xylene ND 0.0174 mg /Kg -dry 1 7/9/2012 4:41:00 AM Styrene ND 0.0174 mg /Kg -dry 1 7/9/2012 4:41:00 AM Isopropylbenzene ND 0.0697 mg /Kg -dry 1 7/9/2012 4:41:00 AM Bromoform ND 0.0174 mg /Kg -dry 1 7/9/2012 4:41:00 AM 1,1,2,2 Tetrachloroethane ND 0.0174 mg /Kg -dry 1 7/9/2012 4:41:00 AM n- Propylbenzene ND 0.0174 mg /Kg -dry 1 7/9/2012 4:41:00 AM Bromobenzene ND 0.0261 mg /Kg -dry 1 7/9/2012 4:41:00 AM 1,3,5- Trimethylbenzene ND 0.0174 mg /Kg -dry 1 71912012 4:41:00 AM 2- Chlorotoluene ND 0.0174 mg /Kg -dry 1 7/9/2012 4:41:00 AM 4- Chlorotoluene ND 0.0174 mg /Kg -dry 1 7/9/2012 4:41:00 AM tert- Butylbenzene ND 0.0174 mg /Kg -dry 1 7/9/2012 4:41:00 AM 1,2,3 Trichloropropane ND 0.0174 mg /Kg -dry 1 7/9/2012 4:41:00 AM 1,2,4 Trichlorobenzene ND 0.0436 mg /Kg -dry 1 7/9/2012 4:41:00 AM sec Butylbenzene ND 0.0174 mg /Kg -dry 1 7/9/2012 4:41:00 AM 4- Isopropyltoluene ND 0.0174 mg /Kg -dry 1 719/2012 4:41:00 AM 1,3- Dichlorobenzene ND 0.0174 mg /Kg -dry 1 7/9/2012 4:41:00 AM 1,4- Dichlorobenzene ND 0.0174 mg /Kg -dry 1 7/9/2012 4:41:00 AM n- Butylbenzene ND 0.0174 mg /Kg -dry 1 7/9/2012 4:41:00 AM 1,2- Dichlorobenzene ND 0.0174 mg /Kg -dry 1 7/912012 4:41:00 AM Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits Page 6 of 49 105 Fremont l U ME 7�7 Client: PBS Engineering Environmental Project: City of Tukwila Lab ID: 1207019 -001 Client Sample ID: SS -1 Analyses Result Volatile Organic Compounds by EPA Method 8260 Analytical Report WO 1207019 Date Reported: 7/12/2012 Collection Date: 7/5/2012 9:45:00 AM Matrix: Soil RL Qual Units DF Date Analyzed 1,2- Dibromo-3- chloropropane ND 0.0261 1,2,4 Trimethylbenzene ND 0.0174 Hexachlorobutadiene ND 0.0871 Naphthalene ND 0.0261 1,2,3 Trichlorobenzene ND 0.0174 Surr:1- Bromo-4- fluorobenzene 103 63.1 -141 Surr: Dibromofluoromethane 95.4 67.6 -119 Surr: Toluene -d8 101 78.5 -126 NOTES: 1 7/11/2012 12:25:01 AM Methylene Chloride is a common laboratory solvent. 1 Total Metals by EPA Method 6020 mg /Kg -dry 1 Antimony 0.612 0.176 Arsenic 5.51 0.0882 Beryllium ND 0.176 Cadmium 2.28 0.176 Chromium 38.2 0.0882 Copper 96.5 0.176 Lead 113 0.176 Nickel 28.0 0.0882 Selenium ND 0.441 Silver 0.0901 0.0882 Thallium ND 0.176 Zinc 751 0.353 Mercury by EPA Method 7471 Mercury ND 0.296 Sample Moisture (Percent Moisture) Percent Moisture 25.9 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range J Analyte detected below quantitation limits RL Reporting Limit Batch ID: 2759 Analyst: EM mg /Kg -dry 1 7/9/2012 4:41:00 AM mg /Kg -dry 1 7/9/2012 4:41:00 AM mg /Kg -dry 1 719/2012 4:41:00 AM mg /Kg -dry 1 7/9/2012 4:41:00 AM mg /Kg -dry 1 7/9/2012 4:41:00 AM %REC 1 7/9/2012 4:41:00 AM %REC 1 7/9/2012 4:41:00 AM %REC 1 7/9/2012 4:41:00 AM Batch ID: 2755 Analyst: BR mg /Kg -dry 1 7/11/2012 12:25:01 AM mg /Kg -dry 1 7/11/2012 12:25:01 AM mg /Kg -dry 1 7/11/2012 12:25:01 AM mg /Kg -dry 1 7/11/2012 12:25:01 AM mg /Kg -dry 1 7/11/2012 12:25:01 AM mg /Kg -dry 1 7/11/2012 12:25:01 AM mg /Kg -dry 1 7/11/2012 12:25:01 AM mg /Kg -dry 1 7/11/2012 12:25:01 AM mg /Kg -dry 1 7/11/2012 12:25:01 AM mg /Kg -dry 1 7/11/2012 12:25:01 AM mg /Kg -dry 1 7/11/2012 12:25:01 AM mg /Kg -dry 1 7/11/2012 12:25:01 AM Batch ID: 2760 Analyst: MC mg /Kg -dry 1 7/10/2012 12:55:32 PM Batch ID: R4883 Analyst: SC wt% 1 7/6/2012 4:59:40 PM D Dilution was required H Holding times for preparation or analysis exceeded ND Not detected at the Reporting Limit S Spike recovery outside accepted recovery limits 106 Page 7 of 49 Fremont a Client: PBS Engineering Environmental Project: City of Tukwila Lab ID: 1207019 -002 Client Sample ID: SS -2 Analyses Result Diesel and Heavv Oil by NWTPH -Dx/Dx Ext. Analytical Report WO 1207019 Date Reported: 7112/2012 Collection Date: 7/5/2012 11:00:00 AM Matrix: Soil RL Qual Units DF Date Analyzed Batch ID: 2746 Analyst: SG Diesel (Fuel Oil) ND 63.6 mg /Kg -dry 1 717/2012 5:54:00 AM Heavy Oil 727 159 mg /Kg -dry 1 7/7/2012 5:54:00 AM Surr: 2- Fluorobiphenyl 90.4 50- 150 %REC 1 7/7/2012 5:54:00 AM Surr: o-Terphenyl 87.5 50 -150 %REC 1 7/7/2012 5:54:00 AM Polvchlorinated Biohenvls (PCB) by EPA 8082 Batch ID: 2757 Analyst: PH Aroclor 1016 ND 0.290 mg /Kg -dry 1 7/11/2012 3:21:00 AM Aroclor 1221 ND 0.290 mg /Kg -dry 1 7/11/2012 3:21:00 AM Aroclor 1232 ND 0.290 mg /Kg -dry 1 7/11/2012 3:21:00 AM Aroclor 1242 ND 0.290 mg /Kg -dry 1 7/11/2012 3:21:00 AM Aroclor 1248 ND 0.290 mg /Kg -dry 1 7/11/2012 3:21:00 AM Aroclor 1254 ND 0.290 mg /Kg -dry 1 7/11/2012 3:21:00 AM Aroclor 1260 ND 0.290 mg /Kg -dry 1 7/11/2012 3:21:00 AM Aroclor 1262 ND 0.290 mg /Kg -dry 1 7/11/2012 3:21:00 AM Aroclor 1268 ND 0.290 mg /Kg -dry 1 7/11/2012 3:21:00 AM Total PCBs ND 0.290 mg /Kg -dry 1 7/11/2012 3:21:00 AM Surr: Decachlorobiphenyl 106 66.1 -145 %REC 1 7/11/2012 3:21:00 AM Surr: Tetrachloro-m- xylene 106 67.2 -132 %REC 1 7/11/2012 3:21:00 AM Polvaromatic Hvdrocarbons by EPA Method 8270 (SIM) Batch ID: 2747 Analyst: PH Naphthalene ND 147 pg /Kg -dry 1 7/9/2012 8:33:00 PM 2- Methylnaphthalene ND 147 pg /Kg -dry 1 7/9/2012 8:33:00 PM 1- Methylnaphthalene ND 147 pg /Kg -dry 1 7/9/2012 8:33:00 PM Acenaphthylene ND 147 pg /Kg -dry 1 7/9/2012 8:33:00 PM Acenaphthene ND 147 pg /Kg -dry 1 7/9/2012 8:33:00 PM Fluorene ND 147 pg /Kg -dry 1 719/2012 8:33:00 PM Phenanthrene 189 147 pg /Kg -dry 1 7/9/2012 8:33:00 PM Anthracene ND 147 pg /Kg -dry 1 719/2012 8:33:00 PM Fluoranthene 367 147 pg /Kg -dry 1 719/2012 8:33:00 PM Pyrene 342 147 pg /Kg -dry 1 7/9/2012 8:33:00 PM Benz(a)anthracene 147 147 pg /Kg -dry 1 7/9/2012 8:33:00 PM Chrysene 161 147 pg /Kg -dry 1 7/9/2012 8:33:00 PM Benzo(b)fluoranthene 235 147 pg /Kg -dry 1 7/9/2012 8:33:00 PM Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits Page 8 of 07 Fremon am I I M�W a `s Z 1.'T Client: PBS Engineering Environmental Collection Date: 7/5/2012 11:00:00 AM Project: City of Tukwila Lab ID: 1207019 -002 Matrix: Soil Client Sample ID: SS -2 Analyses Result RL Qual Units DF Date Analyzed Polvaromatic Hvdrocarbons by EPA Method 8270 (SIM) Batch ID: 2747 Analyst: PH Benzo(k)fluoranthene Benzo(a)pyrene Indeno(1,2,3- cd)pyrene Dibenz(a,h)anth racene Benzo(g,h,i)perylene Surr: 2- Fluorobi phenyl Surr: Terphenyl -d14 (surr) Gasoline by NWTPH -Gx Gasoline Surr: 1,2- Di chi oroethane -d4 Surr: Fluorobenzene ND ND ND ND 161 79.3 84.3 ND 100 100 147 147 147 147 147 50.4 -142 48.8 -157 16.2 65 -135 65 -135 Analytical Report WO 1207019 Date Reported: 7112/2012 pg /Kg -dry 1 7/9/2012 8:33:00 PM pg /Kg -dry 1 7/9/2012 8:33:00 PM pg /Kg -dry 1 7/9/2012 8:33:00 PM pg /Kg -dry 1 7/9/2012 8:33:00 PM pg /Kg -dry 1 7/9/2012 8:33:00 PM %REC 1 7/9/2012 8:33:00 PM %REC 1 7/9/2012 8:33:00 PM Batch ID: R4944 Analyst: EM mg /Kg -dry 1 %REC 1 %REC 1 Batch ID: 2759 7/9/2012 5:13:00 AM 7/9/2012 5:13:00 AM 7/9/2012 5:13:00 AM Analyst: EM Volatile Organic Comoounds by EPA Method 8260 Dichlorodifluoromethane (CFC -12) Chloromethane Vinyl chloride Bromomethane Trichlorofluoromethane (CFC -11) Chloroethane 1,1- Dichloroethene Methylene chloride trans- 1,2- Dichloroethene Methyl tert-butyl ether (MTBE) 1,1- Dichloroethane 2,2- Dichloropropane cis- 1,2- Dichloroethene Chloroform 1,1,1 Trichloroethane (TCA) 1,1- Dichloropropene Carbon tetrachloride 1,2- Dichloroethane (EDC) Benzene ND ND ND ND ND ND ND 0.221 ND ND ND ND ND ND ND ND ND ND ND Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range J Analyte detected below quantitation limits RL Reporting Limit 0.195 mg /Kg -dry 1 7/9/2012 5:13:00 AM 0.195 mg /Kg -dry 1 7/9/2012 5:13:00 AM 0.00649 mg /Kg -dry 1 7/9/2012 5:13:00 AM 0.292 mg /Kg -dry 1 7/9/2012 5:13:00 AM 0.162 mg /Kg -dry 1 7/9/2012 5:13:00 AM 0.195 mg /Kg -dry 1 7/9/2012 5:13:00 AM 0.162 mg /Kg -dry 1 7/9/2012 5:13:00 AM 0.0649 mg /Kg -dry 1 7/9/2012 5:13:00 AM 0.0649 mg /Kg -dry 1 7/9/2012 5:13:00 AM 0.162 mg /Kg -dry 1 7/9/2012 5:13:00 AM 0.0649 mg /Kg -dry 1 7/9/2012 5:13:00 AM 0.162 mg /Kg -dry 1 7/9/2012 5:13:00 AM 0.0649 mg /Kg -dry 1 7/9/2012 5:13:00 AM 0.0649 mg /Kg -dry 1 7/9/2012 5:13:00 AM 0.0649 mg /Kg -dry 1 7/9/2012 5:13:00 AM 0.0649 mg /Kg -dry 1 7/9/2012 5:13:00 AM 0.0649 mg /Kg -dry 1 719/2012 5:13:00 AM 0.0974 mg /Kg -dry 1 7/9/2012 5:13:00 AM 0.0649 mg /Kg -dry 1 7/9/2012 5:13:00 AM D Dilution was required H Holding times for preparation or analysis exceeded ND Not detected at the Reporting Limit S Spike recovery outside accepted recovery limits Page 9 of 49 108 Fremont Client: PBS Engineering Environmental Project: City of Tukwila Lab ID: 1207019 -002 Client Sample ID: SS -2 Analyses Result Volatile Organic Compounds by EPA Method 8260 Analytical Report WO 1207019 Date Reported: 7/12/2012 Collection Date: 7/5/2012 11:00:00 AM Matrix: Soil RL Qual Units DF Batch ID: 2759 Date Analyzed Analyst: EM Trichloroethene (TCE) ND 0.0974 mg /Kg -dry 1 7/9/2012 5:13:00 AM 1,2- Dichloropropane ND 0.0649 mg /Kg -dry 1 7/9/2012 5:13:00 AM Bromodichloromethane ND 0.0649 mg /Kg -dry 1 7/912012 5:13:00 AM Dibromomethane ND 0.130 mg /Kg -dry 1 7/9/2012 5:13:00 AM cis -1,3- Dichloropropene ND 0.0649 mg /Kg -dry 1 7/9/2012 5:13:00 AM Toluene ND 0.0649 mg /Kg -dry 1 7/9/2012 5:13:00 AM trans -1,3- Dichloropropylene ND 0.0974 mg /Kg -dry 1 7/9/2012 5:13:00 AM 1,1,2 Trichloroethane ND 0.0974 mg /Kg -dry 1 7/9/2012 5:13:00 AM 1,3- Dichloropropane ND 0.162 mg /Kg -dry 1 7/9/2012 5:13:00 AM Tetrachloroethene (PCE) ND 0.0649 mg /Kg -dry 1 7/9/2012 5:13:00 AM Dibromochloromethane ND 0.0974 mg /Kg -dry 1 7/9/2012 5:13:00 AM 1,2- Dibromoethane (EDB) ND 0.0162 mg /Kg -dry 1 719/2012 5:13:00 AM Chlorobenzene ND 0.0649 mg /Kg -dry 1 7/9/2012 5:13:00 AM 1,1,1,2 Tetrachloroethane ND 0.0974 mg /Kg -dry 1 7/9/2012 5:13:00 AM Ethylbenzene 0.109 0.0974 mg /Kg -dry 1 7/9/2012 5:13:00 AM m,p- Xylene ND 0.0649 mg /Kg -dry 1 7/9/2012 5:13:00 AM o-Xylene ND 0.0649 mg /Kg -dry 1 7/9/2012 5:13:00 AM Styrene 0.359 0.0649 mg /Kg -dry 1 7/9/2012 5:13:00 AM Isopropyl benzene ND 0.260 mg /Kg -dry 1 7/9/2012 5:13:00 AM Bromoform ND 0.0649 mg /Kg -dry 1 7/9/2012 5:13:00 AM 1,1,2,2 Tetrachloroethane ND 0.0649 mg /Kg -dry 1 7/9/2012 5:13:00 AM n- Propyibenzene ND 0.0649 mg /Kg -dry 1 7/9/2012 5:13:00 AM Bromobenzene ND 0.0974 mg /Kg -dry 1 7/9/2012 5:13:00 AM 1,3,5 Trimethylbenzene ND 0.0649 mg /Kg -dry 1 7/9/2012 5:13:00 AM 2- Chlorotoluene ND 0.0649 mg /Kg -dry 1 7/9/2012 5:13:00 AM 4- Chlorotoluene ND 0.0649 mg /Kg -dry 1 7/9/2012 5:13:00 AM tert Butylbenzene ND 0.0649 mg /Kg -dry 1 7/9/2012 5:13:00 AM 1,2,3 Trichloropropane ND 0.0649 mg /Kg -dry 1 7/9/2012 5:13:00 AM 1,2,4- Tdchlorobenzene ND 0.162 mg /Kg -dry 1 7/9/2012 5:13:00 AM sec Butylbenzene ND 0.0649 mg /Kg -dry 1 7/9/2012 5:13:00 AM 4- Isopropyltoluene ND 0.0649 mg /Kg -dry 1 7/9/2012 5:13:00 AM 1,3- Dichlorobenzene ND 0.0649 mg /Kg -dry 1 7/9/2012 5:13:00 AM 1,4- Dichlorobenzene ND 0.0649 mg /Kg -dry 1 7/9/2012 5:13:00 AM n- Butylbenzene ND 0.0649 mg /Kg -dry 1 7/9/2012 5:13:00 AM 1,2- Dichlorobenzene ND 0.0649 mg /Kg -dry 1 7/9/2012 5:13:00 AM Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits Page 10 of 49 109 •i "n �T Client: PBS Engineering Environmental Project: City of Tukwila Lab ID: 1207019 -002 Client Sample ID: SS -2 Analyses Result Volatile Organic Compounds by EPA Method 8260 1,2- Dibromo-3- chloropropane 1,2,4- Trimethylbenzene Hexachlorobutadiene Naphthalene 1,2,3- Trichlorobenzene Surr: 1 -B romo-4 -fl uorobenzene Surr: Dibromofluoromethane Surr: Toluene -d8 NOTES: Methylene Chloride is a common laboratory solvent. Total Metals by EPA Method 6020 Analytical Report WO 1207019 Date Reported: 7/12/2012 Collection Date: 7/5/2012 11:00:00 AM Matrix: Soil RL Qual Units DF Batch ID: 2759 Date Analyzed Analyst: EM ND 0.0974 mg /Kg -dry 1 ND 0.0649 mg /Kg -dry 1 ND 0.325 mg /Kg -dry 1 ND 0.0974 mg /Kg -dry 1 ND 0.0649 mg /Kg -dry 1 104 63.1 -141 %REC 1 97.6 67.6 -119 %REC 1 100 78.5 -126 %REC 1 7/9/2012 5:13:00 AM 7/9/2012 5:13:00 AM 7/9/2012 5:13:00 AM 7/9/2012 5:13:00 AM 7/9/2012 5:13:00 AM 7/9/2012 5:13:00 AM 7/9/2012 5:13:00 AM 7/9/2012 5:13:00 AM Batch ID: 2755 Analyst: BR Antimony 2.28 0.601 mg /Kg -dry 1 7/11/2012 12:35:18 AM Arsenic 47.8 0.301 mg /Kg -dry 1 7/11/2012 12:35:18 AM Beryllium ND 0.601 mg /Kg -dry 1 7/11/2012 12:35:18 AM Cadmium 2.65 0.601 mg /Kg -dry 1 7/11/2012 12:35:18 AM Chromium 121 0.301 mg /Kg -dry 1 7/11/2012 12:35:18 AM Copper 292 0.601 mg /Kg -dry 1 7/11/2012 12:35:18 AM Lead 130 0.601 mg /Kg -dry 1 7/11/2012 12:35:18 AM Nickel 92.8 0.301 mg /Kg -dry 1 7/11/2012 12:35:18 AM Selenium ND 1.50 mg /Kg -dry 1 7/11/2012 12:35:18 AM Silver 3.19 0.301 mg /Kg -dry 1 7/11/2012 12:35:18 AM Thallium ND 0.601 mg /Kg -dry 1 7/11/2012 12:35:18 AM Zinc 1,360 1.20 mg /Kg -dry 1 7/11/2012 12:35:18 AM Mercury by EPA Method 7471 Batch ID: 2760 Analyst: MC Mercury ND 0.546 mg /Kg -dry 1 7/10/2012 12:58:37 PM Sample Moisture (Percent Moisture) Batch ID: R4883 Analyst: SC Percent Moisture 69.5 wt% 1 7/6/2012 4:59:40 PM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range J Analyte detected below quantitation limits RL Reporting Limit D Dilution was required H Holding times for preparation or analysis exceeded ND Not detected at the Reporting Limit S Spike recovery outside accepted recovery limits Page 11 of 49 110 Fremont Client: PBS Engineering Environmental Project: City of Tukwila Lab ID: 1207019 -003 Client Sample ID: SS -3 Analyses Result Diesel and Heavv Oil by NWTPH -Dx/Dx Ext. Analytical Report W O 1207019 Date Reported: 7112/2012 Collection Date: 7/5/2012 11:30:00 AM Matrix: Soil RL Qual Units DF Batch ID: 2746 Diesel (Fuel Oil) ND 44.3 Heavy Oil ND 111 Surr:2- Fluorobiphenyl 89.6 50 -150 Surr: o-Terphenyl 88.9 50 -150 Polvchlorinated Biohenvls (PCB1 by EPA 8082 Aroclor 1016 ND 0.227 Aroclor 1221 ND 0.227 Aroclor 1232 NO 0.227 Aroclor 1242 NO 0.227 Aroclor 1248 ND 0.227 Aroclor 1254 NO 0.227 Aroclor 1260 NO 0.227 Aroclor 1262 NO 0.227 Aroclor 1268 NO 0.227 Total PCBs ND 0.227 Surr: Decachlorobiphenyl 119 66.1 -145 Surr: Tetrachloro-m xylene 110 67.2 -132 Polvaromatic Hvdrocarbons by EPA Method 8270 (SIMI Naphthalene ND 2- Methyl naphthalene NO 1- Methyl naphthalene NO Acenaphthylene NO Acenaphthene NO Fluorene NO Phenanthrene 345 Anthracene NO Fluoranthene 839 Pyrene 690 Benz(a)anthracene 333 Chrysene 416 Benzo(b)fluoranthene 647 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range 1 J Analyte detected below quantitation limits RL Reporting Limit pg /Kg -dry mg /Kg -dry 1 mg /Kg -dry 1 %REC 1 %REC 1 Batch ID: 2757 mg /Kg -dry 1 mg /Kg -dry 1 mg /Kg -dry 1 mg /Kg -dry 1 mg /Kg -dry 1 mg /Kg -dry 1 mg /Kg -dry 1 mg /Kg -dry 1 mg /Kg -dry 1 mg /Kg -dry 1 %REC 1 %REC 1 Batch ID: 2747 Date Analyzed Analyst: SG 7/7/2012 1:35:00 AM 7/7/2012 1:35:00 AM 7/7/2012 1:35:00 AM 7/7/2012 1:35:00 AM Analyst: PH 7/11/2012 3:37:00 AM 7/11/2012 3:37:00 AM 7/11/2012 3:37:00 AM 7/11/2012 3:37:00 AM 7/11/2012 3:37:00 AM 7/1112012 3:37:00 AM 7/11/2012 3:37:00 AM 7/1112012 3:37:00 AM 7/11/2012 3:37:00 AM 7/11/2012 3:37:00 AM 7/11/2012 3:37:00 AM 7111/2012 3:37:00 AM Analyst: PH 117 pg /Kg -dry 1 7/9/2012 8:58:00 PM 117 pg /Kg -dry 1 7/9/2012 8:58:00 PM 117 pg /Kg -dry 1 7/9/2012 8:58:00 PM 117 pg /Kg -dry 1 719/2012 8:58:00 PM 117 pg /Kg -dry 1 7/9/2012 8:58:00 PM 117 pg /Kg -dry 1 7/9/2012 8:58:00 PM 117 pg /Kg -dry 1 7/9/2012 8:58:00 PM 117 pg /Kg -dry 1 7/9/2012 8:58:00 PM 117 pg /Kg -dry 1 719/2012 8:58:00 PM 117 pg /Kg -dry 1 7/9/2012 8:58:00 PM 117 pg /Kg -dry 1 7/9/2012 8:58:00 PM 117 pg /Kg -dry 1 7/9/2012 8:58:00 PM 117 pg /Kg -dry 1 7/9/2012 8:58:00 PM D Dilution was required H Holding times for preparation or analysis exceeded ND Not detected at the Reporting Limit S Spike recovery outside accepted recovery limits Page 12 of 49 111 in F remo nt ei'1111� Analytical Report W O 1207019 Date Reported: 7112/2012 Client: PBS Engineering Environmental Collection Date: 7/5/2012 11:30:00 AM 112 Project: City of Tukwila Lab ID: 1207019 -003 Matrix: Soil Client Sample ID: SS -3 Analyses Result RL Qual Units DF Date Analyzed Polvaromatic Hvdrocarbons by EPA Method 8270 (SIM) Batch ID: 2747 Analyst: PH Benzo(k)fluoranthene 298 117 pg /Kg -dry 1 719/2012 8:58:00 PM Benzo(a)pyrene 379 117 pg /Kg -dry 1 7/9/2012 8:58:00 PM Indeno(1,2,3- cd)pyrene 274 117 pg /Kg -dry 1 7/9/2012 8:58:00 PM Dibenz(a,h)anthracene ND 117 pg /Kg -dry 1 7/9/2012 8:58:00 PM Benzo(g,h,i)perylene 341 117 pg /Kg -dry 1 7/9/2012 8:58:00 PM Surr: 2- Fluorobiphenyl 75.5 50.4 -142 %REC 1 7/9/2012 8:58:00 PM Surr: Terphenyl -d14 (surr) 81.9 48.8 -157 %REC 1 7/9/2012 8:58:00 PM Gasoline by NWTPH -Gx Batch ID: R4944 Analyst: EM Gasoline ND 22.0 mg /Kg -dry 1 7/9/2012 5:45:00 AM Sum 1,2- Dichloroethane -d4 96.8 65 -135 %REC 1 719/2012 5:45:00 AM Surr: Fluorobenzene 100 65 -135 %REC 1 7/912012 5:45:00 AM Volatile Oraanic Compounds by EPA Method 8260 Batch ID: 2759 Analyst: EM Dichlorodifluoromethane (CFC -12) ND 0.264 mg /Kg -dry 1 7/9/2012 5:45:00 AM Chloromethane ND 0.264 mg /Kg -dry 1 7/9/2012 5:45:00 AM Vinyl chloride ND 0.00879 mg /Kg -dry 1 7/9/2012 5:45:00 AM Bromomethane ND 0.396 mg /Kg -dry 1 7/9/2012 5:45:00 AM Trichlorofluoromethane (CFC -11) ND 0.220 mg /Kg -dry 1 719/2012 5:45:00 AM Chloroethane ND 0.264 mg /Kg -dry 1 7/9/2012 5:45:00 AM 1,1- Dichloroethene ND 0.220 mg /Kg -dry 1 7/9/2012 5:45:00 AM Methylene chloride 0.328 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM trans -1,2- Dichloroethene ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM Methyl tert -butyl ether (MTBE) ND 0.220 mg /Kg -dry 1 7/9/2012 5:45:00 AM 1,1- Dichloroethane ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM 2,2- Dichloropropane ND 0.220 mg /Kg -dry 1 7/912012 5:45:00 AM cis- 1,2- Dichloroethene ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM Chloroform ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM 1,1,1 Trichloroethane (TCA) ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM 1,1- Dichloropropene ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM Carbon tetrachloride ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM 1,2- Dichloroethane (EDC) ND 0.132 mg /Kg -dry 1 7/9/2012 5:45:00 AM Benzene ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits Page 13 of 49 in Fremont i uaff i Client: PBS Engineering Environmental Project: City of Tukwila Lab ID: 1207019 -003 Client Sample ID: SS -3 Analyses Analytical Report WO 1207019 Date Reported: 7/12/2012 Collection Date: 7/5/2012 11:30:00 AM Matrix: Soil Result RL Qual Units DF Volatile Organic Compounds by EPA Method 8260 Batch ID: 2759 Date Analyzed Analyst: EM Trichloroethene (TCE) ND 0.132 mg /Kg -dry 1 7/9/2012 5:45:00 AM 1,2- Dichloropropane ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM Bromodichloromethane ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM Dibromomethane ND 0.176 mg /Kg -dry 1 7/9/2012 5:45:00 AM cis- 1,3- Dichloropropene ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM Toluene ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM trans- 1,3- Dichloropropylene ND 0.132 mg /Kg -dry 1 7/9/2012 5:45:00 AM 1,1,2 Trichloroethane ND 0.132 mg /Kg -dry 1 7/9/2012 5:45:00 AM 1,3- Dichloropropane ND 0.220 mg /Kg -dry 1 7/9/2012 5:45:00 AM Tetrachloroethene (PCE) ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM Dibromochloromethane ND 0.132 mg /Kg -dry 1 7/9/2012 5:45:00 AM 1,2- Dibromoethane (EDB) ND 0.0220 mg /Kg -dry 1 7/9/2012 5:45:00 AM Chlorobenzene ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM 1,1,1,2 Tetrachloroethane ND 0.132 mg /Kg -dry 1 719/2012 5:45:00 AM Ethylbenzene ND 0.132 mg /Kg -dry 1 7/9/2012 5:45:00 AM m,p- Xylene ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM o-Xylene ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM Styrene ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM Isopropyl benzene ND 0.352 mg /Kg -dry 1 7/9/2012 5:45:00 AM Bromoform ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM 1,1,2,2 Tetrachloroethane ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM n- Propylbenzene ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM Bromobenzene ND 0.132 mg /Kg -dry 1 7/9/2012 5:45:00 AM 1,3,5- Trimethylbenzene ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM 2- Chlorotoluene ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM 4- Chlorotoluene ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM tert Butylbenzene ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM 1,2,3- Trichloropropane ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM 1,2,4 Trichlorobenzene ND 0.220 mg /Kg -dry 1 7/9/2012 5:45:00 AM sec Butylbenzene ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM 4- Isopropyltoluene ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM 1,3- Dichlorobenzene ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM 1,4- Dichlorobenzene ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM n- Butylbenzene ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM 1,2- Dichlorobenzene ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits Page 14 of 49 113 E� Fremont �Eti 1�t.. ,sue Client: PBS Engineering Environmental Project: City of Tukwila Lab ID: 1207019 -003 Client Sample ID: SS -3 Analyses Result Volatile Organic Compounds by EPA Method 8260 Analytical Report W O 1207019 Date Reported: 7/12/2012 Collection Date: 7/5/2012 11:30:00 AM Matrix: Soil RL Qual Units DF Date Analyzed Batch ID: 2759 Analyst: EM 1,2- Dibromo-3- chloropropane ND 0.132 mg /Kg -dry 1 7/9/2012 5:45:00 AM 1,2,4 Trimethylbenzene ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM Hexachlorobutadiene ND 0.440 mg /Kg -dry 1 7/9/2012 5:45:00 AM Naphthalene ND 0.132 mg /Kg -dry 1 7/9/2012 5:45:00 AM 1,2,3 Trichlorobenzene ND 0.0879 mg /Kg -dry 1 7/9/2012 5:45:00 AM Surr: 1- Bromo-4- fluorobenzene 104 63.1 -141 %REC 1 7/9/2012 5:45:00 AM Surr: Dibromofluoromethane 95.2 67.6 -119 %REC 1 7/9/2012 5:45:00 AM Surr: Toluene -d8 99.7 78.5 -126 %REC 1 7/9/2012 5:45:00 AM NOTES: Methylene Chloride is a common laboratory solvent. Total Metals by EPA Method 6020 Batch ID: 2755 Analyst: BR Antimony 0.875 0.384 mg /Kg -dry 1 7/11/2012 12:45:36 AM Arsenic 15.5 0.192 mg /Kg -dry 1 7111/2012 12:45:36 AM Beryllium ND 0.384 mg /Kg -dry 1 7/11/2012 12:45:36 AM Cadmium 1.08 0.384 mg /Kg -dry 1 7/11/2012 12:45:36 AM Chromium 33.9 0.192 mg /Kg -dry 1 7/11/2012 12:45:36 AM Copper 51.4 0.384 mg /Kg -dry 1 7/11/2012 12:45:36 AM Lead 66.7 0.384 mg /Kg -dry 1 7/11/2012 12:45:36 AM Nickel 35.3 0.192 mg /Kg -dry 1 7/11/2012 12:45:36 AM Selenium ND 0.959 mg /Kg -dry 1 7/11/2012 12:45:36 AM Silver ND 0.192 mg /Kg -dry 1 7/11/2012 12:45:36 AM Thallium ND 0.384 mg /Kg -dry 1 7/11/2012 12:45:36 AM Zinc 314 0.767 mg /Kg -dry 1 7/11/2012 12:45:36 AM Mercury by EPA Method 7471 Mercury ND Sample Moisture (Percent Moisture) Percent Moisture 62.0 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range J Analyte detected below quantitation limits RL Reporting Limit Batch ID: 2760 Analyst: MC 0.548 mg /Kg dry 1 7/10/2012 1:01:43 PM Batch ID: R4883 Analyst: SC wt% 1 716/2012 4:59:40 PM D Dilution was required H Holding times for preparation or analysis exceeded ND Not detected at the Reporting Limit S Spike recovery outside accepted recovery limits Page 15 of 49 114 �5 Fremont F 7M 1 f' o Client: PBS Engineering Environmental Project: City of Tukwila Lab ID: 1207019 -004 Client Sample ID: SS -4 Analyses Result Diesel and Heavv Oil by NWTPH -Dx/Dx Ext. Analytical Report WO 1207019 Date Reported: 7/12/2012 Collection Date: 7/5/2012 11:50:00 AM Matrix: Soil RL Qual Units DF Batch ID: 2746 Diesel (Fuel Oil) ND 17.5 Heavy Oil ND 43.8 Surr:2- Fluorobiphenyl 86.8 50 -150 Surr: o-Terphenyl 86.6 50 -150 Polvchlorinated Biohenvls (PCB) by EPA 8082 Aroclor 1016 ND 0.0836 Aroclor 1221 ND 0.0836 Aroclor 1232 ND 0.0836 Aroclor 1242 ND 0.0836 Aroclor 1248 ND 0.0836 Aroclor 1254 ND 0.0836 Aroclor 1260 ND 0.0836 Aroclor 1262 ND 0.0836 Aroclor 1268 ND 0.0836 Total PCBs ND 0.0836 Surr: Decachlorobiphenyl 118 66.1 -145 Sum Tetrachloro-m- xylene 108 67.2 -132 Polvaromatic Hvdrocarbons by EPA Method 8270 (SIM) Naphthalene ND 2- Methyl naphthalene ND 1- Methyl naphthalene ND Acenaphthylene ND Acenaphthene ND Fluorene ND Phenanthrene 97.5 Anthracene ND Fluoranthene 117 Pyrene 87.5 Benz(a)anthracene ND Chrysene ND Benzo(b)fluoranthene ND Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range 1 J Analyte detected below quantitation limits RL Reporting Limit mg /Kg -dry 1 mg /Kg -dry 1 %REC 1 %REC 1 Batch ID: 2757 mg /Kg -dry 1 mg /Kg -dry 1 mg /Kg -dry 1 mg /Kg -dry 1 mg /Kg -dry 1 mg /Kg -dry 1 mg /Kg -dry 1 mg /Kg -dry 1 mg /Kg -dry 1 mg /Kg -dry 1 %REC 1 %REC 1 Batch ID: 2747 Date Analyzed Analyst: SG 7/7/2012 2:04:00 AM 7/7/2012 2:04:00 AM 7/7/2012 2:04:00 AM 7/7/2012 2:04:00 AM Analyst: PH 7/11/2012 3:53:00 AM 7/11/2012 3:53:00 AM 7/11/2012 3:53:00 AM 7/11/2012 3:53:00 AM 7/11/2012 3:53:00 AM 7/11/2012 3:53:00 AM 7/11/2012 3:53:00 AM 7/11/2012 3:53:00 AM 7/11/2012 3:53:00 AM 7/11/2012 3:53:00 AM 7/11/2012 3:53:00 AM 7/11/2012 3:53:00 AM Analyst: PH 58.7 pg /Kg -dry 1 7/9/2012 7:43:00 PM 58.7 pg /Kg -dry 1 7/9/2012 7:43:00 PM 58.7 pg /Kg -dry 1 7/9/2012 7:43:00 PM 58.7 pg /Kg -dry 1 7/9/2012 7:43:00 PM 58.7 pg /Kg -dry 1 7/9/2012 7:43:00 PM 58.7 pg /Kg -dry 1 7/9/2012 7:43:00 PM 58.7 pg /Kg -dry 1 7/9/2012 7:43:00 PM 58.7 pg /Kg -dry 1 7/9/2012 7:43:00 PM 58.7 pg /Kg -dry 1 7/9/2012 7:43:00 PM 58.7 pg /Kg -dry 1 7/9/2012 7:43:00 PM 58.7 pg /Kg -dry 1 7/9/2012 7:43:00 PM 58.7 pg /Kg -dry 1 7/9/2012 7:43:00 PM 58.7 pg /Kg -dry 1 7/9/2012 7:43:00 PM D Dilution was required H Holding times for preparation or analysis exceeded ND Not detected at the Reporting Limit S Spike recovery outside accepted recovery limits Page 16 of 49 1 15 13 Fremont SIB. 112E- f Client: PBS Engineering Environmental Collection Date: 7/5/2012 11:50:00 AM Project: City of Tukwila Lab ID: 1207019 -004 Matrix: Soil Client Sample ID: SS -4 Analyses Result RL Qual Units DF Date Analyzed Polvaromatic Hvdrocarbons by EPA Method 8270 (SIM) Batch ID: 2747 Analyst: PH Benzo(k)fluoranthene Benzo(a)pyrene Indeno(1,2,3- cd)pyrene Dibenz(a,h)anthracene Benzo(g,h,i)perylene Surr: 2- Fluorobi ph enyl Sum: Terphenyl -d14 (surr) ND ND ND ND ND 74.3 80.6 58.7 58.7 58.7 58.7 58.7 50.4 -142 48.8 -157 pg /Kg -dry 1 7/9/2012 7:43:00 PM pg /Kg -dry 1 7/9/2012 7:43:00 PM pg /Kg -dry 1 7/9/2012 7:43:00 PM pg /Kg -dry 1 7/9/2012 7:43:00 PM pg /Kg -dry 1 7/9/2012 7:43:00 PM %REC 1 7/9/2012 7:43:00 PM %REC 1 7/912012 7:43:00 PM Gasoline by NWTPH -Gx Gasoline Surr: 1,2- Dichloroethane -d4 Surr: Fluorobenzene ND 94.5 99.2 5.48 65 -135 65 -135 Analytical Report WO 1207019 Date Reported: 7/12/2012 Batch ID: R4944 Analyst: EM mg /Kg -dry 1 %REC 1 %REC 1 Volatile Oroanic Comaounds by EPA Method 8260 Dichlorodifluoromethane (CFC -12) Chloromethane Vinyl chloride Bromomethane Trichlorofluoromethane (CFC -11) Chloroethane 1,1- Dichloroethene Methylene chloride trans -1,2- Dichloroethene Methyl tert-butyl ether (MTBE) 1,1- Dichloroethane 2,2- Dichloropropane cis -1,2- Dichloroethene Chloroform 1,1,1 Trichloroethane (TCA) 1,1- Dichloropropene Carbon tetrachloride 1,2- Dichloroethane (EDC) Benzene ND ND ND ND ND ND ND 0.0543 ND ND ND ND ND ND ND ND ND ND ND Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range J Analyte detected below quantitation limits RL Reporting Limit Batch ID: 2759 7/9/2012 6:18:00 AM 7/9/2012 6:18:00 AM 7/9/2012 6:18:00 AM Analyst: EM 0.0658 mg /Kg -dry 1 7/9/2012 6:18:00 AM 0.0658 mg /Kg -dry 1 7/9/2012 6:18:00 AM 0.00219 mg /Kg -dry 1 7/9/2012 6:18:00 AM 0.0987 mg /Kg -dry 1 7/9/2012 6:18:00 AM 0.0548 mg /Kg -dry 1 7/9/2012 6:18:00 AM 0.0658 mg /Kg -dry 1 7/9/2012 6:18:00 AM 0.0548 mg /Kg -dry 1 7/9/2012 6:18:00 AM 0.0219 mg /Kg -dry 1 7/9/2012 6:18:00 AM 0.0219 mg /Kg -dry 1 7/9/2012 6:18:00 AM 0.0548 mg /Kg -dry 1 7/9/2012 6:18:00 AM 0.0219 mg /Kg -dry 1 7/9/2012 6:18:00 AM 0.0548 mg /Kg -dry 1 719/2012 6:18:00 AM 0.0219 mg /Kg -dry 1 7/9/2012 6:18:00 AM 0.0219 mg /Kg -dry 1 7/9/2012 6:18:00 AM 0.0219 mg /Kg -dry 1 7/9/2012 6:18:00 AM 0.0219 mg /Kg -dry 1 7/9/2012 6:18:00 AM 0.0219 mg /Kg -dry 1 7/9/2012 6:18:00 AM 0.0329 mg /Kg -dry 1 7/9/2012 6:18:00 AM 0.0219 mg /Kg -dry 1 7/9/2012 6:18:00 AM D Dilution was required H Holding times for preparation or analysis exceeded ND Not detected at the Reporting Limit S Spike recovery outside accepted recovery limits 116 Page 17 of 49 Cl Fremont :Ulf. 5 7 Analytical Report WO 1207019 Date Reported: 7/12/2012 Client: PBS Engineering Environmental Collection Date: 7/5/2012 11:50:00 AM Project: City of Tukwila Lab ID: 1207019 -004 Matrix: Soil Client Sample ID: SS -4 Analyses Result RL Qual Units DF Date Analyzed Volatile Organic Compounds by EPA Method 8260 Batch ID: 2759 Analyst: EM Trichloroethene (TCE) ND 0.0329 mg /Kg -dry 1 7/9/2012 6:18:00 AM 1,2- Dichloropropane ND 0.0219 mg /Kg -dry 1 7/9/2012 6:18:00 AM Bromodichloromethane ND 0.0219 mg /Kg -dry 1 7/9/2012 6:18:00 AM Dibromomethane ND 0.0439 mg /Kg -dry 1 7/9/2012 6:18:00 AM cis- 1,3- Dichloropropene ND 0.0219 mg /Kg -dry 1 7/9/2012 6:18:00 AM Toluene ND 0.0219 mg /Kg -dry 1 7/9/2012 6:18:00 AM trans -1,3- Dichloropropylene ND 0.0329 mg /Kg -dry 1 7/9/2012 6:18:00 AM 1,1,2 Trichloroethane ND 0.0329 mg /Kg -dry 1 7/9/2012 6:18:00 AM 1,3- Dichloropropane ND 0.0548 mg /Kg -dry 1 7/9/2012 6:18:00 AM Tetrachloroethene (PCE) ND 0.0219 mg /Kg -dry 1 7/9/2012 6:18:00 AM Dibromochloromethane ND 0.0329 mg /Kg -dry 1 7/9/2012 6:18:00 AM 1,2- Dibromoethane (EDB) ND 0.00548 mg /Kg -dry 1 71912012 6:18:00 AM Chlorobenzene ND 0.0219 mg /Kg -dry 1 7/9/2012 6:18:00 AM 1,1,1,2 Tetrachloroethane ND 0.0329 mg /Kg -dry 1 7/9/2012 6:18:00 AM Ethylbenzene ND 0.0329 mg /Kg -dry 1 7/9/2012 6:18:00 AM m,p- Xylene ND 0.0219 mg /Kg -dry 1 719/2012 6:18:00 AM o-Xylene ND 0.0219 mg /Kg -dry 1 7/9/2012 6:18:00 AM Styrene ND 0.0219 mg /Kg -dry 1 7/9/2012 6:18:00 AM Isopropylbenzene ND 0.0877 mg /Kg -dry 1 719/2012 6:18:00 AM Bromoform ND 0.0219 mg /Kg -dry 1 7/912012 6:18:00 AM 1,1,2,2 Tetrachloroethane ND 0.0219 mg /Kg -dry 1 7/9/2012 6:18:00 AM n- Propylbenzene ND 0.0219 mg /Kg -dry 1 7/9/2012 6:18:00 AM Bromobenzene ND 0.0329 mg /Kg -dry 1 7/9/2012 6:18:00 AM 1,3,5- Trimethylbenzene ND 0.0219 mg /Kg -dry 1 7/9/2012 6:18:00 AM 2- Chlorotoluene ND 0.0219 mg /Kg -dry 1 7/9/2012 6:18:00 AM 4- Chlorotoluene ND 0.0219 mg /Kg -dry 1 7/912012 6:18:00 AM tert- Butylbenzene ND 0.0219 mg /Kg -dry 1 719/2012 6:18:00 AM 1,2,3 Trichloropropane ND 0.0219 mg /Kg -dry 1 7/9/2012 6:18:00 AM 1,2,4 Trichlorobenzene ND 0.0548 mg /Kg -dry 1 7/9/2012 6:18:00 AM sec -Butyl benzene ND 0.0219 mg /Kg -dry 1 7/9/2012 6:18:00 AM 4- Isopropyltoluene ND 0.0219 mg /Kg -dry 1 719/2012 6:18:00 AM 1,3- Dichlorobenzene ND 0.0219 mg /Kg -dry 1 7/9/2012 6:18:00 AM 1,4- Dichlorobenzene ND 0.0219 mg /Kg -dry 1 7/9/2012 6:18:00 AM n- Butylbenzene ND 0.0219 mg /Kg -dry 1 7/9/2012 6:18:00 AM 1,2- Dichlorobenzene ND 0.0219 mg /Kg -dry 1 7/9/2012 6:18:00 AM Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits Page 18 of 49 117 Fremont ar4 Client: PBS Engineering Environmental Project: City of Tukwila Lab ID: 1207019 -004 Client Sample ID: SS -4 Analyses Res u It Analytical Report WO 1207019 Date Reported: 7112/2012 Collection Date: 7/5/2012 11:50:00 AM Matrix: Soil RL Qua[ Units D Date Analyzed Volatile Organic Compounds by EPA Method 8260 1,2- Dibromo-3- chloropropane ND 0.0329 1,2,4 Trimethylbenzene ND 0.0219 Hexachlorobutadiene ND 0.110 Naphthalene ND 0.0329 1,2,3 Trichlorobenzene ND 0.0219 Surr:1- Bromo-4- fluorobenzene 103 63.1 -141 Surr: Dibromofluoromethane 92.6 67.6 -119 Surr: Toluene -d8 101 78.5 -126 NOTES: 7/11/2012 12:55:53 AM mg /Kg -dry Methylene Chloride is a common laboratory solvent. 7/11/2012 12:55:53 AM mg /Kg -dry Total Metals by EPA Method 6020 7/11/2012 12:55:53 AM mg /Kg -dry Antimony ND 0.181 Arsenic 3.71 0.0904 Beryllium ND 0.181 Cadmium 0.227 0.181 Chromium 21.7 0.0904 Copper 10.4 0.181 Lead 8.93 0.181 Nickel 43.1 0.0904 Selenium ND 0.452 Silver ND 0.0904 Thallium ND 0.181 Zinc 72.3 0.361 Mercury by EPA Method 7471 Mercury ND 0.247 Sample Moisture (Percent Moisture) Percent Moisture 22.1 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range J Analyte detected below quantitation limits RL Reporting Limit Batch ID: 2759 Analyst: EM mg /Kg -dry 1 7/9/2012 6:18:00 AM mg /Kg -dry 1 7/9/2012 6:18:00 AM mg /Kg -dry 1 7/9/2012 6:18:00 AM mg /Kg -dry 1 7/9/2012 6:18:00 AM mg /Kg -dry 1 7/9/2012 6:18:00 AM %REC 1 7/9/2012 6:18:00 AM %REC 1 7/9/2012 6:18:00 AM %REC 1 7/9/2012 6:18:00 AM Batch ID: 2755 Analyst: BR mg /Kg -dry 1 7/11/2012 12:55:53 AM mg /Kg -dry 1 7/11/2012 12:55:53 AM mg /Kg -dry 1 7/11/2012 12:55:53 AM mg /Kg -dry 1 7/11/2012 12:55:53 AM mg /Kg -dry 1 7/11/2012 12:55:53 AM mg /Kg -dry 1 7/11/2012 12:55:53 AM mg /Kg -dry 1 7/11/2012 12:55:53 AM mg /Kg -dry 1 7/11/2012 12:55:53 AM mg /Kg -dry 1 7/11/2012 12:55:53 AM mg /Kg -dry 1 7/11/2012 12:55:53 AM mg /Kg -dry 1 7/11/2012 12:55:53 AM mg /Kg -dry 1 7/11/2012 12:55:53 AM Batch ID: 2760 Analyst: MC mg /Kg -dry 1 7/10/2012 1:10:58 PM Batch ID: R4883 Analyst: SC wt% 1 7/6/2012 4:59:40 PM D Dilution was required H Holding times for preparation or analysis exceeded ND Not detected at the Reporting Limit S Spike recovery outside accepted recovery limits Page 19 of 49 118 Fremont r Client: PBS Engineering Environmental Project: City of Tukwila Lab ID: 1207019 -005 Client Sample ID: SS -5 Analyses Result Analytical Report WO 1207019 Date Reported: 7/12/2012 Collection Date: 7/5/2012 12:45:00 PM Matrix: Soil RL Qual Units DF Date Analyzed Diesel and Heavv Oil by NWTPH -Dx/Dx Ext. Batch ID: 2746 Analyst: SG Diesel (Fuel Oil) ND 24.2 mg /Kg -dry 1 7/7/2012 3:02:00 AM Heavy Oil 100 60.4 mg /Kg -dry 1 7/7/2012 3:02:00 AM Surr: 2- Fluorobiphenyl 87.0 50 -150 %REC 1 7/7/2012 3:02:00 AM Surr: o-Terphenyl 85.2 50 -150 %REC 1 7/712012 3:02:00 AM Polvchlorinated Biohenvis (PCB) by EPA 8082 Batch ID: 2757 Analyst: PH Aroclor 1016 ND 0.108 mg /Kg -dry 1 7/11/2012 4:40:00 AM Aroclor 1221 ND 0.108 mg /Kg -dry 1 7/11/2012 4:40:00 AM Aroclor 1232 ND 0.108 mg /Kg -dry 1 7/11/2012 4:40:00 AM Aroclor 1242 ND 0.108 mg /Kg -dry 1 7/11/2012 4:40:00 AM Aroclor 1248 ND 0.108 mg /Kg -dry 1 7/11/2012 4:40:00 AM Aroclor 1254 ND 0.108 mg /Kg -dry 1 7/11/2012 4:40:00 AM Aroclor 1260 ND 0.108 mg /Kg -dry 1 7/11/2012 4:40:00 AM Aroclor 1262 ND 0.108 mg /Kg -dry 1 7/11/2012 4:40:00 AM Aroclor 1268 ND 0.108 mg /Kg -dry 1 7/11/2012 4:40:00 AM Total PCBs ND 0.108 mg /Kg -dry 1 7/11/2012 4:40:00 AM Surr: Decachlorobiphenyl 104 66.1 -145 %REC 1 7/11/2012 4:40:00 AM Surr: Tetrachloro-m xylene 106 67.2 -132 %REC 1 7/11/2012 4:40:00 AM Polvaromatic Hvdrocarbons by EPA Method 8270 (SIM) Batch ID: 2747 Analyst: PH Naphthalene ND 73.0 pg /Kg -dry 1 7/9/2012 9:23:00 PM 2- Methylnaphthalene ND 73.0 pg /Kg -dry 1 7/9/2012 9:23:00 PM 1- Methylnaphthalene ND 73.0 pg /Kg -dry 1 7/9/2012 9:23:00 PM Acenaphthylene ND 73.0 pg /Kg -dry 1 7/9/2012 9:23:00 PM Acenaphthene ND 73.0 pg /Kg -dry 1 7/9/2012 9:23:00 PM Fluorene ND 73.0 pg /Kg -dry 1 7/9/2012 9:23:00 PM Phenanthrene 98.8 73.0 pg /Kg -dry 1 7/9/2012 9:23:00 PM Anthracene ND 73.0 pg /Kg -dry 1 7/9/2012 9:23:00 PM Fluoranthene 202 73.0 pg /Kg -dry 1 7/9/2012 9:23:00 PM Pyrene 182 73.0 pg /Kg -dry 1 7/9/2012 9:23:00 PM Benz(a)anthracene 92.6 73.0 pg /Kg -dry 1 7/9/2012 9:23:00 PM Chrysene 107 73.0 pg /Kg -dry 1 7/9/2012 9:23:00 PM Benzo(b)fluoranthene 170 73.0 pg /Kg -dry 1 7/9/2012 9:23:00 PM Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits Page 20 of 49 119 Fremont Client: PBS Engineering Environmental Collection Date: 7/5/2012 12:45:00 PM Project: City of Tukwila Lab ID: 1207019 -005 Matrix: Soil Client Sample ID: SS -5 Analyses Result RL Qual Units DF Date Analyzed Polvaromatic Hvdrocarbons by EPA Method 8270 (SIM) Batch ID: 2747 Analyst: PH Benzo(k)fluoranthene Benzo(a)pyrene Indeno(1,2,3- ed)pyrene Di benz(a, h) anth racene Benzo(g,h,i)perylene Surr: 2- F I u o ro b i p h en yl Surr: Terphenyl -d14 (surr) 82.2 98.2 81.4 ND 118 75.1 84.7 73.0 73.0 73.0 73.0 73.0 50.4 -142 48.8 -157 pg /Kg -dry 1 7/9/2012 9:23:00 PM pg /Kg -dry 1 7/9/2012 9:23:00 PM pg /Kg -dry 1 7/9/2012 9:23:00 PM pg /Kg -dry 1 7/9/2012 9:23:00 PM pg /Kg -dry 1 7/9/2012 9:23:00 PM %REC 1 7/9/2012 9:23:00 PM %REC 1 7/9/2012 9:23:00 PM Gasoline by NWTPH -Gx Gasoline Surr: 1,2- Dichloroethane -d4 Surr: Fluorobenzene ND 95.2 99.8 8.72 65 -135 65 -135 Analytical Report WO 1207019 Date Reported: 7/1212012 Batch ID: R4944 Analyst: EM mg /Kg -dry 1 %REC 1 %REC 1 Volatile Organic Compounds by EPA Method 8260 Dichlorodifluoromethane (CFC -12) Chloromethane Vinyl chloride Bromomethane Trichlorofluoromethane (CFC -11) Chloroethane 1,1- Dichloroethene Methylene chloride trans- 1,2- Dichloroethene Methyl tert -butyl ether (MTBE) 1,1- Dichloroethane 2,2- Dichloropropane cis- 1,2- Dichloroethene Chloroform 1,1,1 Trichloroethane (TCA) 1,1- Dichloropropene Carbon tetrachloride 1,2- Dichloroethane (EDC) Benzene ND ND ND ND ND ND ND 0.111 ND ND ND ND ND ND ND ND ND ND ND Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range J Analyte detected below quantitation limits RL Reporting Limit Batch ID: 2759 7/9/2012 6:49:00 AM 7/9/2012 6:49:00 AM 7/9/2012 6:49:00 AM Analyst: EM 0.105 mg /Kg -dry 1 7/9/2012 6:49:00 AM 0.105 mg /Kg -dry 1 7/9/2012 6:49:00 AM 0.00349 mg /Kg -dry 1 7/9/2012 6:49:00 AM 0.157 mg /Kg -dry 1 7/9/2012 6:49:00 AM 0.0872 mg /Kg -dry 1 7/9/2012 6:49:00 AM 0.105 mg /Kg -dry 1 7/9/2012 6:49:00 AM 0.0872 mg /Kg -dry 1 7/9/2012 6:49:00 AM 0.0349 mg /Kg -dry 1 7/9/2012 6:49:00 AM 0.0349 mg /Kg -dry 1 7/9/2012 6:49:00 AM 0.0872 mg /Kg -dry 1 7/9/2012 6:49:00 AM 0.0349 mg /Kg -dry 1 7/9/2012 6:49:00 AM 0.0872 mg /Kg -dry 1 719/2012 6:49:00 AM 0.0349 mg /Kg -dry 1 7/9/2012 6:49:00 AM 0.0349 mg /Kg -dry 1 7/9/2012 6:49:00 AM 0.0349 mg /Kg -dry 1 7/9/2012 6:49:00 AM 0.0349 mg /Kg -dry 1 7/9/2012 6:49:00 AM 0.0349 mg /Kg -dry 1 7/9/2012 6:49:00 AM 0.0523 mg /Kg -dry 1 7/9/2012 6:49:00 AM 0.0349 mg /Kg -dry 1 7/9/2012 6:49:00 AM D Dilution was required H Holding times for preparation or analysis exceeded ND Not detected at the Reporting Limit S Spike recovery outside accepted recovery limits 120 Page 21 of 49 Fremont mmr mp Analytical Report WO 1207019 Date Reported: 7/12/2012 Client: PBS Engineering Environmental Collection Date: 7/5/2012 12:45:00 PM Project: City of Tukwila Lab ID: 1207019 -005 Matrix: Soil Client Sample ID: SS -5 Analyses Result RL Qual Units DF Date Analyzed Volatile Orqanic Compounds by EPA Method 8260 Batch ID: 2759 Analyst: EM Trichloroethene (TCE) ND 0.0523 mg /Kg -dry 1 7/9/2012 6:49:00 AM 1,2- Dichloropropane ND 0.0349 mg /Kg -dry 1 7/9/2012 6:49:00 AM Bromodichloromethane ND 0.0349 mg /Kg -dry 1 7/9/2012 6:49:00 AM Dibromomethane ND 0.0698 mg /Kg -dry 1 719/2012 6:49:00 AM cis -1,3- Dichloropropene ND 0.0349 mg /Kg -dry 1 7/9/2012 6:49:00 AM Toluene ND 0.0349 mg /Kg -dry 1 7/9/2012 6:49:00 AM trans -1,3- Dichloropropylene ND 0.0523 mg /Kg -dry 1 7/9/2012 6:49:00 AM 1,1,2 Trichloroethane ND 0.0523 mg /Kg -dry 1 7/9/2012 6:49:00 AM 1,3- Dichloropropane ND 0.0872 mg /Kg -dry 1 7/9/2012 6:49:00 AM Tetrachloroethene (PCE) ND 0.0349 mg /Kg -dry 1 7/9/2012 6:49:00 AM Dibromochloromethane ND 0.0523 mg /Kg -dry 1 7/9/2012 6:49:00 AM 1,2- Dibromoethane (EDB) ND 0.00872 mg /Kg -dry 1 7/9/2012 6:49:00 AM Chlorobenzene ND 0.0349 mg /Kg -dry 1 7/9/2012 6:49:00 AM 1,1,1,2 Tetrachloroethane ND 0.0523 mg /Kg -dry 1 7/9/2012 6:49:00 AM Ethylbenzene ND 0.0523 mg /Kg -dry 1 7/9/2012 6:49:00 AM m,p- Xylene ND 0.0349 mg /Kg -dry 1 719/2012 6:49:00 AM o-Xylene ND 0.0349 mg /Kg -dry 1 7/9/2012 6:49:00 AM Styrene ND 0.0349 mg /Kg -dry 1 7/9/2012 6:49:00 AM Isopropylbenzene ND 0.140 mg /Kg -dry 1 7/9/2012 6:49:00 AM Bromoform ND 0.0349 mg /Kg -dry 1 7/9/2012 6:49:00 AM 1,1,2,2 Tetrachloroethane ND 0.0349 mg /Kg -dry 1 7/9/20126:49: 00 AM n- Propylbenzene ND 0.0349 mg /Kg -dry 1 7/9/2012 6:49:00 AM Bromobenzene ND 0.0523 mg /Kg -dry 1 7/9/2012 6:49:00 AM 1,3,5- Trimethylbenzene ND 0.0349 mg /Kg -dry 1 7/9/2012 6:49:00 AM 2- Chlorotoluene ND 0.0349 mg /Kg -dry 1 7/9/2012 6:49:00 AM 4- Chlorotoluene ND 0.0349 mg /Kg -dry 1 719/2012 6:49:00 AM tert -Butyl benzene ND 0.0349 mg /Kg -dry 1 7/9/2012 6:49:00 AM 1,2,3 Trichloropropane ND 0.0349 mg /Kg -dry 1 7/9/2012 6:49:00 AM 1,2,4 Trichlorobenzene ND 0.0872 mg /Kg -dry 1 7/9/2012 6:49:00 AM sec Butylbenzene ND 0.0349 mg /Kg -dry 1 7/9/2012 6:49:00 AM 4- Isopropyltoluene ND 0.0349 mg /Kg -dry 1 7/9/2012 6:49:00 AM 1,3- Dichlorobenzene ND 0.0349 mg /Kg -dry 1 7/9/2012 6:49:00 AM 1,4- Dichlorobenzene ND 0.0349 mg /Kg -dry 1 719/2012 6:49:00 AM n- Butylbenzene ND 0.0349 mg /Kg -dry 1 7/9/2012 6:49:00 AM 1,2- Dichlorobenzene ND 0.0349 mg /Kg -dry 1 7/9/2012 6:49:00 AM Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits Page 22 of 49 Fremont mis Client: PBS Engineering Environmental Project: City of Tukwila Lab ID: 1207019 -005 Client Sample ID: SS -5 Analyses Res u It Volatile Oraanic Compounds by EPA Method 8260 Analytical Report WO 1207019 Date Reported: 7/12/2012 Collection Date: 7/5/2012 12:45:00 PM Matrix: Soil RL Qual Units D Date Analyzed 1,2- Dibromo-3- chloropropane ND 0.0523 1,2,4- Trimethylbenzene ND 0.0349 Hexachlorobutadiene ND 0.174 Naphthalene ND 0.0523 1,2,3 Trichlorobenzene ND 0.0349 Surr:1- Bromo-4- fluorobenzene 103 63.1 -141 Surr: Dibromofluoromethane 93.0 67.6 -119 Surr: Toluene -d8 100 78.5 -126 NOTES: 1 7/11/2012 1:06:11 AM Methylene Chloride is a common laboratory solvent. 1 7/11/2012 1:06:11 AM Total Metals by EPA Method 6020 1 7/11/2012 1:06:11 AM Antimony 0.702 0.257 Arsenic 8.91 0.128 Beryllium ND 0.257 Cadmium 1.96 0.257 Chromium 25.1 0.128 Copper 116 0.257 Lead 102 0.257 Nickel 35.2 0.128 Selenium ND 0.642 Silver 20.5 0.128 Thallium ND 0.257 Zinc 572 0.513 Mercury by EPA Method 7471 Mercury ND 0.297 Sample Moisture /Percent Moisturel Percent Moisture 38.2 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range J Analyte detected below quantitation limits RL Reporting Limit Batch ID: 2759 Analyst: EM mg /Kg -dry 1 7/9/2012 6:49:00 AM mg /Kg -dry 1 7/9/2012 6:49:00 AM mg /Kg -dry 1 7/9/2012 6:49:00 AM mg /Kg -dry 1 7/9/2012 6:49:00 AM mg /Kg -dry 1 7/9/2012 6:49:00 AM %REC 1 7/9/2012 6:49:00 AM %REC 1 719/2012 6:49:00 AM %REC 1 7/9/2012 6:49:00 AM Batch ID: 2755 Analyst: BR mg /Kg -dry 1 7/11/2012 1:06:11 AM mg /Kg -dry 1 7/11/2012 1:06:11 AM mg /Kg -dry 1 7/11/2012 1:06:11 AM mg /Kg -dry 1 7/11/2012 1:06:11 AM mg /Kg -dry 1 7/11/2012 1:06:11 AM mg /Kg -dry 1 7111/2012 1:06:11 AM mg /Kg -dry 1 7/11/2012 1:06:11 AM mg /Kg -dry 1 7/11/2012 1:06:11 AM mg /Kg -dry 1 7/11/2012 1:06:11 AM mg /Kg -dry 1 7/11/2012 1:06:11 AM mg /Kg -dry 1 7/11/2012 1:06:11 AM mg /Kg -dry 1 7/11/2012 1:06:11 AM Batch ID: 2760 Analyst: MC mg /Kg -dry 1 7/10/2012 1:14:04 PM Batch ID: R4883 Analyst: SC wt% 1 7/6/2012 4:59:40 PM D Dilution was required H Holding times for preparation or analysis exceeded ND Not detected at the Reporting Limit S Spike recovery outside accepted recovery limits 122 Page 23 of 49 Fremont nramsarnh Date: 7/12/2012 Work Order: CLIENT: Project: 1207019 PBS Engineering & Environmental City of Tukwila QC SUMMARY REPORT Total Metals by EPA Method 6020 Sample ID: MB -2755 SampType: MBLK Units: mg /Kg Prep Date: 7/9/2012 RunNo: 4909 Client ID: MBLKS Batch ID: 2755 Analysis Date: 7/10/2012 SeqNo: 94593 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Antimony Arsenic Beryllium Cadmium Chromium Copper Lead Nickel Selenium Silver Thallium Zinc ND ND ND ND ND ND ND ND ND ND ND ND 0.200 0.100 0.200 0.200 0.100 0.200 0.200 0.100 0.500 0.100 0.200 0.400 Sample ID: LCS -2755 SampType: LCS Units: mg /Kg Prep Date: 7/9/2012 RunNo: 4909 Client ID: LCSS Batch ID: 2755 Analysis Date: 7/10/2012 SeqNo: 94594 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Antimony Arsenic Beryllium Cadmium Chromium Copper Lead Nickel Selenium Silver Thallium 38.7 336 297 64.3 278 316 61.2 68.5 350 57.2 138 0.200 0.100 0.200 0.200 0.100 0.200 0.200 0.100 0.500 0.100 0.200 88.00 301.0 295.0 55.90 219.0 289.0 56.70 56.90 275.0 48.60 119.0 0 44.0 0 112 0 101 0 115 0 127 0 109 0 108 0 120 0 127 0 118 0 116 24.3 70.3 74.5 73.3 68 75.8 71.8 74.4 63.5 67.2 62.7 281.7 130.1 125.3 126.8 132.1 124.6 128.7 125.6 136.4 132.9 137.1 Qualifiers: B Analyte detected in the associated Method Blank H Holding times for preparation or analysis exceeded R RPD outside accepted recovery limits D Dilution was required J Analyte detected below quantitation limits RL Reporting Limit E Value above quantitation range ND Not detected at the Reporting Limit S Spike recovery outside accepted recovery limits Page 24 of 49 Fremont rangrfirwra Date: 7/12/2012 Work Order: CLIENT: Project: 1207019 PBS Engineering & Environmental City of Tukwila QC SUMMARY REPORT Total Metals by EPA Method 6020 Sample ID: LCS -2755 Client ID: LCSS Analyte SampType: LCS Units: mg /Kg Prep Date: 7/9/2012 RunNo: 4909 Batch ID: 2755 Analysis Date: 7/10/2012 SeqNo: 94594 Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Zinc 274 0.400 231.0 0 119 70 130 Sample ID: 1207027 -001AMS SampType: MS Units: mg /Kg-dry Prep Date: 7/9/2012 Client ID: BATCH Batch ID: 2755 Analysis Date: 7/10/2012 SeqNo: 94596 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual RunNo 4909 Antimony 0.515 0.264 Arsenic 91.9 0.132 Beryllium 4.15 0.264 Cadmium 4.56 0.264 Chromium 119 0.132 Copper 163 0.264 Lead 84.2 0.264 Nickel 141 0.132 Selenium 5.38 0.660 Silver 2.86 0.132 Thallium 1.79 0.264 Zinc 200 0.528 NOTES: 3.301 66.02 3.301 3.301 66.02 66.02 33.01 66.02 6.602 3.301 1.651 66.02 0.4165 16.48 0.7014 0.9588 45.74 87.76 50.81 78.07 0 0.3573 0.4464 120.8 2.98 114 105 109 111 114 101 95.1 81.5 75.7 81.1 120 75 75 75 75 75 75 75 75 75 75 75 75 S - Spike recovery indicates a possible matrix effect for Sb. The method is in control as indicated by the Laboratory Control Sample (LCS). 125 125 125 125 125 125 125 125 125 125 125 125 S Sample ID: 1207027 -001AMSD SampType: MSD Units: mg /Kg-dry Prep Date: 7/9/2012 RunNo: 4909 Client ID: BATCH Batch ID: 2755 Analysis Date: 7/10/2012 SeqNo: 94597 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Antimony Arsenic Beryllium 0.501 87.8 3.93 0.257 0.128 0.257 3.208 64.17 3.208 0.4165 16.48 0.7014 2.64 111 101 75 75 75 125 125 125 0.5150 91.91 4.152 2.70 30 S 4.55 30 5.52 30 Qualifiers: B Analyte detected in the associated Method Blank H Holding times for preparation or analysis exceeded R RPD outside accepted recovery limits D Dilution was required J Analyte detected below quantitation limits RL Reporting Limit E Value above quantitation range ND Not detected at the Reporting Limit S Spike recovery outside accepted recovery limits Page 25 of 49 Fremont wawa Date: 7/12/2012 Work Order: CLIENT: Project: 1207019 PBS Engineering & Environmental City of Tukwila QC SUMMARY REPORT Total Metals by EPA Method 6020 Sample ID: 1207027- 001AMSD SampType: MSD Units: mg /Kg-dry Prep Date: 7/9/2012 RunNo: 4909 Client ID: BATCH Batch ID: 2755 Analysis Date: 7/10/2012 SeqNo: 94597 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Cadmium 4.35 0.257 Chromium 116 0.128 Copper 154 0.257 Lead 80.4 0.257 Nickel 137 0.128 Selenium 4.89 0.642 Silver 2.80 0.128 Thallium 1.71 0.257 Zinc 193 0.513 NOTES: 3.208 64.17 64.17 32.08 64.17 6.417 3.208 1.604 64.17 0.9588 45.74 87.76 50.81 78.07 0 0.3573 0.4464 120.8 106 109 104 92.3 92.1 76.2 76.3 78.9 113 75 75 75 75 75 75 75 75 75 S - Spike recovery indicates a possible matrix effect for Sb. The method is in control as indicated by the Laboratory Control Sample (LCS). 125 125 125 125 125 125 125 125 125 4.558 119.3 162.7 84.20 140.8 5.380 2.857 1.786 199.7 4.78 3.26 5.19 4.60 2.64 9.49 1.84 4.18 3.29 30 30 30 30 30 30 30 30 30 Sample ID: 1207019- 005CDUP SampType: DUP Units: mg /Kg-dry Prep Date: 7/9/2012 RunNo: 4909 Client ID: SS -5 Batch ID: 2755 Analysis Date: 7/11/2012 SeqNo: 94624 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Antimony Arsenic Beryllium Cadmium Chromium Copper Lead Nickel Selenium Silver Thallium Zinc 0.590 9.96 ND 2.00 24.7 115 107 38.5 ND 18.1 ND 583 0.257 0.128 0.257 0.257 0.128 0.257 0.257 0.128 0.642 0.128 0.257 0.513 0.7023 8.908 0 1.961 25.09 115.6 101.9 35.21 0 20.46 0 571.6 17.4 11.2 0 1.90 1.43 0.178 5.27 8.93 0 12.5 0 2.03 30 30 30 30 30 30 30 30 30 30 30 30 Qualifiers: B Analyte detected in the associated Method Blank H Holding times for preparation or analysis exceeded R RPD outside accepted recovery limits D Dilution was required J Analyte detected below quantitation limits RL Reporting Limit E Value above quantitation range ND Not detected at the Reporting Limit S Spike recovery outside accepted recovery limits Page 26 of 49 Fremont Work Order: CLIENT: Project: i #r 1207019 PBS Engineering & Environmental City of Tukwila Date: 7/12/2012 QC SUMMARY REPORT Mercury by EPA Method 7471 Sample ID: MB -2760 Client ID: MBLKS Analyte SampType: MBLK Units: mg /Kg Prep Date: 7/10/2012 RunNo: 4908 Batch ID: 2760 Analysis Date: 7/10/2012 SeqNo: 94142 Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Mercury ND 0.250 Sample ID: LCS -2760 Client ID: LCSS Analyte SampType: LCS Units: mg /Kg Prep Date: 7/10/2012 RunNo: 4908 Batch ID: 2760 Analysis Date: 7/10/2012 SeqNo: 94143 Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Mercury 0.496 0.250 0.5000 0 99.2 85 115 Sample ID: 1207027- 001ADUP SampType: DUP Units: mg /Kg-dry Prep Date: 7/10/2012 RunNo: 4908 Client ID: BATCH Batch ID: 2760 Analysis Date: 7/10/2012 SeqNo: 94145 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Mercury ND 0.361 0 0 20 Sample ID: 1207027 -001AMS SampType: MS Units: mg /Kg -dry Prep Date: 7/10/2012 RunNo: 4908 Client ID: BATCH Batch ID: 2760 Analysis Date: 7/10/2012 SeqNo: 94146 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Mercury 0.926 0.391 0.7823 0.1096 104 70 130 Sample ID: 1207027- 001AMSD SampType: MSD Units: mg /Kg-dry Prep Date: 7/10/2012 RunNo: 4908 Client ID: BATCH Batch ID: 2760 Analysis Date: 7/10/2012 SeqNo: 94147 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Mercury 0.868 0.381 0.7615 0.1096 99.6 70 130 0.9263 6.49 20 Qualifiers: B Analyte detected in the associated Method Blank H Holding times for preparation or analysis exceeded R RPD outside accepted recovery limits D Dilution was required J Analyte detected below quantitation limits RL Reporting Limit E Value above quantitation range ND Not detected at the Reporting Limit S Spike recovery outside accepted recovery limits Page 27 of 49 Work Order: CLIENT: Project: 1207019 PBS Engineering & Environmental City of Tukwila Date: 7/12/2012 QC SUMMARY REPORT Diesel and Heavy Oil by NWTPH -Dx/Dx Ext. Sample ID: 1207027- 002ADUP SampType: DUP Units: mg /Kg-dry Prep Date: 7/6/2012 RunNo: 4900 Client ID: BATCH Batch ID: 2746 Analysis Date: 7/7/2012 SeqNo: 93866 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Diesel (Fuel Oil) Heavy Oil Surr: 2- Fluorobiphenyl Surr: o-Terphenyl ND ND 35.9 35.8 41.4 103 41.37 41.37 86.8 86.4 50 150 50 150 0 0 0 0 0 0 30 30 Sample ID: LCS -2746 SampType: LCS Units: mg /Kg Prep Date: 7/6/2012 RunNo: 4900 Client ID: LCSS Batch ID: 2746 Analysis Date: 7/6/2012 SeqNo: 93868 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Diesel (Fuel Oil) Surr: 2 -F l u orob i p henyl Surr: o-Terphenyl 392 19.9 20.6 20.0 500.0 20.00 20.00 0 78.4 99.5 103 65 50 50 135 150 150 Sample ID: MB -2746 SampType: MBLK Units: mg /Kg Prep Date: 7/6/2012 RunNo: 4900 Client ID: MBLKS Batch ID: 2746 Analysis Date: 7/6/2012 SeqNo: 93869 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Diesel (Fuel Oil) Heavy Oil Surr: 2 -F luorobi phenyl Surr: o-Terphenyl ND ND 17.9 18.1 20.0 50.0 20.00 20.00 89.4 90.6 50 150 50 150 Sample ID: CCV -2746 B SampType: CCV Units: mg /Kg Prep Date: 7/6/2012 RunNo: 4900 Client ID: CCV Batch ID: 2746 Analysis Date: 7/9/2012 SeqNo: 94001 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Diesel (Fuel Oil) 475 20.0 500.0 0 94.9 80 120 Qualifiers: B Analyte detected in the associated Method Blank H Holding times for preparation or analysis exceeded R RPD outside accepted recovery limits D Dilution was required J Analyte detected below quantitation limits RL Reporting Limit E Value above quantitation range ND Not detected at the Reporting Limit S Spike recovery outside accepted recovery limits Page 28 of 49 Fremont Date: 7/12/2012 Work Order: CLIENT: Project: 1207019 PBS Engineering & Environmental City of Tukwila QC SUMMARY REPORT Diesel and Heavy Oil by NWTPH -Dx/Dx Ext. Sample ID: CCV -2746 B SampType: CCV Units: mg /Kg Prep Date: 7/6/2012 RunNo: 4900 Client ID: CCV Batch ID: 2746 Analysis Date: 7/9/2012 SeqNo: 94001 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Surr: 2- Fluorobiphenyl Surr: o-Terphenyl 17.6 17.3 20.00 20.00 88.1 86.6 50 50 150 150 Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit R RPD outside accepted recovery limits RL Reporting Limit S Spike recovery outside accepted recovery limits Page 29 of 49 Fremont inamosium rrrniv Jim Jl Date: 7/12/2012 Work Order: 1207019 CLIENT: PBS Engineering & Environmental Project: City of Tukwila QC SUMMARY REPORT Polyaromatic Hydrocarbons by EPA Method 8270 (SIM) Sample ID: MB -2747 SampType: MBLK Units: pg /Kg Prep Date: 7/6/2012 RunNo: 4898 Client ID: MBLKS Batch ID: 2747 Analysis Date: 7/9/2012 SeqNo: 93857 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Naphthalene 2- Methylnaphthalene 1- Methylnaphthalene Acenaphthylene Acenaphthene Fluorene Phenanthrene Anthracene Fluoranthene Pyrene Benz(a)anthracene Chrysene Benzo(b)fluoranthene Benzo(k)fluoranthene Benzo(a)pyrene Indeno(1,2,3- cd)pyrene Dibenz(a,h)anthracene Benzo(g,h,i)perylene Surr: 2 -F luorobi phenyl Surr: Terphenyl -d14 (surr) ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 422 384 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 500.0 500.0 84.5 76.8 50.4 142 48.8 157 Sample ID: LCS -2747 SampType: LCS Units: pg /Kg Prep Date: 7/6/2012 RunNo: 4898 Client ID: LCSS Batch ID: 2747 Analysis Date: 7/9/2012 SeqNo: 93858 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Naphthalene 2- Methylnaphthalene 1- Methylnaphthalene 983 984 986 50.0 50.0 50.0 1,000 1,000 1,000 0 0 0 98.3 98.4 98.6 70 70 70 130 130 130 Qualifiers: B Analyte detected in the associated Method Blank H Holding times for preparation or analysis exceeded R RPD outside accepted recovery limits D Dilution was required J Analyte detected below quantitation limits RL Reporting Limit E Value above quantitation range ND Not detected at the Reporting Limit S Spike recovery outside accepted recovery limits Page 30 of 49 Date: 7/12/2012 Work Order: 1207019 CLIENT: PBS Engineering & Environmental Project: City of Tukwila QC SUMMARY REPORT Polyaromatic Hydrocarbons by EPA Method 8270 (SIM) Sample ID: LCS -2747 SampType: LCS Units: pg /Kg Prep Date: 7/6/2012 RunNo: 4898 Client ID: LCSS Batch ID: 2747 Analysis Date: 7/9/2012 SeqNo: 93858 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Acenaphthylene Acenaphthene Fluorene Phenanthrene Anthracene Fluoranthene Pyrene Benz(a)anthracene Chrysene Benzo(b)fluoranthene Benzo(k)fl uoranthen e Benzo(a)pyrene Indeno(1,2,3- cd)pyrene Dibenz(a,h)anthracene Benzo(g,h,i)perylene Surr: 2 -F luorobi phenyl Surr: Terphenyl -d14 (surr) 954 995 990 1,010 958 889 845 827 998 731 823 878 887 913 861 385 356 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 500.0 500.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 95.4 99.5 99.0 101 95.8 88.9 84.5 82.7 99.8 73.1 82.3 87.8 88.7 91.3 86.1 77.0 71.2 70 50.4 70 70 70 70 50.3 70 70 70 70 70 70 70 70 50.4 48.8 130 130 130 130 130 130 141 130 130 130 130 130 130 130 130 142 157 Sample ID: 1207027- 002ADUP SampType: DUP Units: pg /Kg-dry Prep Date: 7/6/2012 RunNo: 4898 Client ID: BATCH Batch ID: 2747 Analysis Date: 7/9/2012 SegNo: 93861 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Naphthalene 2- Methylnaphthalene 1- Methylnaphthalene Acenaphthylene Acenaphthene Fluorene ND ND ND ND ND ND 114 114 114 114 114 114 0 0 0 0 0 0 0 0 0 0 0 0 30 30 30 30 30 30 R R R R R Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit R RPD outside accepted recovery limits RL Reporting Limit S Spike recovery outside accepted recovery limits Page 31 of 49 Fremont r b Date: 7/12/2012 Work Order: 1207019 CLIENT: PBS Engineering & Environmental Project: City of Tukwila QC SUMMARY REPORT Polyaromatic Hydrocarbons by EPA Method 8270 (SIM) Sample ID: 1207027- 002ADUP SampType: DUP Units: pg /Kg -dry Prep Date: 7/6/2012 RunNo: 4898 Client ID: BATCH Batch ID: 2747 Analysis Date: 7/9/2012 SeqNo: 93861 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Phenanthrene Anthracene Fluoranthene Pyrene Benz(a)anthracene Chrysene Benzo(b)fluoranthene Benzo(k)fluoranthene Benzo(a)pyrene Indeno(1,2,3- cd)pyrene Dibenz(a,h)anthracene Benzo(g,h,i)perylene Surr: 2- Fluorobiphenyl Surr: Terphenyl -d14 (surr) NOTES: R - High RPD indicates matrix interference. The method is in control as indicated by the laboratory control sample (LCS). 543 141 671 742 367 396 431 226 309 197 ND 237 926 949 114 114 114 114 114 114 114 114 114 114 114 114 1,142 1,142 81.1 83.2 423.3 24.8 30 108.7 25.6 30 524.6 24.5 30 581.1 24.3 30 288.4 23.8 30 320.6 21.0 30 308.8 33.0 30 R 208.5 7.92 30 247.1 22.3 30 149.0 28.0 30 0 0 30 192.7 20.5 30 50.4 142 0 48.8 157 0 Sample ID: 1207019- 004CMS SampType: MS Units: pg /Kg-dry Prep Date: 7/6/2012 RunNo: 4898 Client ID: SS-4 Batch ID: 2747 Analysis Date: 7/9/2012 SeqNo: 94056 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Naphthalene 2- Methylnaphthalene 1- Methylnaphthalene Acenaphthylene Acenaphthene Fluorene Phenanthrene Anthracene 1,150 1,240 1,220 1,270 1,230 1,290 1,290 1,320 57.8 57.8 57.8 57.8 57.8 57.8 57.8 57.8 1,156 1,156 1,156 1,156 1,156 1,156 1,156 1,156 0 0 0 0 0 0 97.51 20.37 99.8 107 106 110 106 112 103 112 70 70 70 70 50.6 70 70 70 130 130 130 130 126 130 130 130 Qualifiers: B Analyte detected in the associated Method Blank H Holding times for preparation or analysis exceeded R RPD outside accepted recovery limits D Dilution was required J Analyte detected below quantitation limits RL Reporting Limit E Value above quantitation range ND Not detected at the Reporting Limit S Spike recovery outside accepted recovery limits Page 32 of 49 Date: 7/12/2012 Work Order: CLIENT: Project: 1207019 PBS Engineering & Environmental City of Tukwila QC SUMMARY REPORT Polyaromatic Hydrocarbons by EPA Method 8270 (SIM) Sample ID: 1207019- 004CMS SampType: MS Units: pg /Kg-dry Prep Date: 7/6/2012 RunNo: 4898 Client ID: SS-4 Batch ID: 2747 Analysis Date: 7/9/2012 SeqNo: 94056 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Fluoranthene Pyrene Benz(a)anthracene Chrysene Benzo(b)fluoranthene Benzo(k)fluoranthene Benzo(a)pyrene Indeno(1,2,3- cd)pyrene Dibenz(a,h)anthracene Benzo(g,h,i)perylene Surr: 2- Fluorobiphenyl Surr: Terphenyl -d14 (surr) 1,280 1,160 1,300 1,260 1,360 1,250 1,230 1,450 1,350 1,350 473 511 57.8 57.8 57.8 57.8 57.8 57.8 57.8 57.8 57.8 57.8 1,156 1,156 1,156 1,156 1,156 1,156 1,156 1,156 1,156 1,156 577.9 577.9 116.9 87.48 58.35 49.07 50.88 36.80 36.68 20.06 0 29.59 101 92.6 108 105 113 105 104 124 117 114 81.8 88.4 70 50.4 70 70 70 70 70 70 70 70 50.4 48.8 130 139 130 130 130 130 130 130 130 130 142 157 Sample ID: CCV-2747B SampType: CCV Units: pg /Kg Prep Date: 7/10/2012 RunNo: 4898 Client ID: CCV Batch ID: 2747 Analysis Date: 7/10/2012 SeqNo: 94063 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Phenanthrene Fluoranthene Pyrene Chrysene Benzo(b)fluoranthene Benzo(a)pyrene Surr: 2- Fluorobiphenyl Surr: Terphenyl -d14 (surr) 1,080 987 914 1,040 1,040 939 478 445 50.0 50.0 50.0 50.0 50.0 50.0 1,000 1,000 1,000 1,000 1,000 1,000 500.0 500.0 0 0 0 0 0 0 108 98.7 91.4 104 104 93.9 95.5 89.0 80 80 80 80 80 80 50.4 48.8 120 120 120 120 120 120 142 157 Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit R RPD outside accepted recovery limits RL Reporting Limit S Spike recovery outside accepted recovery limits Page 33 of 49 Date: 7/12/2012 Work Order: CLIENT: Project: 1207019 PBS Engineering & Environmental City of Tukwila QC SUMMARY REPORT Polyaromatic Hydrocarbons by EPA Method 8270 (SIM) Sample ID: LCSD -2747 SampType: LCSD Units: pg /Kg Prep Date: 7/6/2012 RunNo: 4898 Client ID: LCSSO2 Batch ID: 2747 Analysis Date: 7/9/2012 SegNo: 94067 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Naphthalene 2- Methylnaphthalene 1- Methylnaphthalene Acenaphthylene Acenaphthene Fluorene Phenanthrene Anthracene Fluoranthene Pyrene Benz(a)anthracene Chrysene Benzo(b)fluoranthene Benzo(k)fluoranthene Benzo(a)pyrene Indeno(1,2,3- cd)pyrene D i ben z(a, h) anth racen e Benzo(g,h,i)perylene Surr: 2-Fluorobiphenyl Surr: Terphenyl -d14 (surr) 925 976 972 964 963 990 964 983 916 864 958 965 982 864 897 1,070 1,000 982 401 393 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 50.0 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 500.0 500.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 92.5 97.6 97.2 96.4 96.3 99.0 96.4 98.3 91.6 86.4 95.8 96.5 98.2 86.4 89.7 107 100 98.2 80.3 78.5 70 70 70 70 50.4 70 70 70 70 50.3 70 70 70 70 70 70 70 70 50.4 48.8 130 130 130 130 130 130 130 130 130 141 130 130 130 130 130 130 130 130 142 157 982.6 983.7 986.1 954.2 994.7 989.8 1,006 957.7 889.2 844.9 827.0 998.0 730.7 822.7 877.6 887.0 912.9 861.3 6.02 0.767 1.47 1.07 3.24 0.0434 4.35 2.65 3.01 2.25 14.6 3.38 29.3 4.95 2.19 18.4 9.50 13.1 0 0 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 Qualifiers: B Analyte detected in the associated Method Blank H Holding times for preparation or analysis exceeded R RPD outside accepted recovery limits D Dilution was required J Analyte detected below quantitation limits RL Reporting Limit E Value above quantitation range ND Not detected at the Reporting Limit S Spike recovery outside accepted recovery limits Page 34 of 49 Fremont Date: 7/12/2012 Work Order: CLIENT: Project: 1207019 PBS Engineering & Environmental City of Tukwila QC SUMMARY REPORT Polychlorinated Biphenyls (PCB) by EPA 8082 Sample ID: MB -2757 SampType: MBLK Units: mg /Kg Prep Date: 7/9/2012 RunNo: 4942 Client ID: MBLKS Batch ID: 2757 Analysis Date: 7/11/2012 SegNo: 94737 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Aroclor 1016 Aroclor 1221 Aroclor 1232 Aroclor 1242 Aroclor 1248 Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268 Total PCBs Surr: Decachlorobiphenyl Surr: Tetrachloro-m - xylene ND ND ND ND ND ND ND ND ND ND 52.1 50.3 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 50.00 104 66.1 145 50.00 101 67.2 132 Sample ID: LCS -2757 SampType: LCS Units: mg /Kg Prep Date: 7/9/2012 RunNo: 4942 Client ID: LCSS Batch ID: 2757 Analysis Date: 7/11/2012 SegNo: 94738 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Aroclor 1254 Surr: Decachlorobiphenyl Surr: Tetrachloro-m - xylene 1.03 57.2 51.8 0.100 1.000 50.00 50.00 0 103 114 104 70.7 66.1 67.2 118 145 132 Sample ID: LCSD -2757 SampType: LCSD Units: mg /Kg Prep Date: 7/9/2012 RunNo: 4942 Client ID: LCSSO2 Batch ID: 2757 Analysis Date: 7/11/2012 SegNo: 94739 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Aroclor 1254 Surr: Decachlorobiphenyl Surr: Tetrachloro-m - xylene 0.982 52.8 50.1 0.100 1.000 50.00 50.00 0 98.2 106 100 70.7 66.1 67.2 118 145 132 1.032 4.97 0 0 30 Qualifiers: B Analyte detected in the associated Method Blank H Holding times for preparation or analysis exceeded R RPD outside accepted recovery limits D Dilution was required J Analyte detected below quantitation limits RL Reporting Limit E Value above quantitation range ND Not detected at the Reporting Limit S Spike recovery outside accepted recovery limits Page 35 of 49 Work Order: 1207019 CLIENT: PBS Engineering & Environmental Project: City of Tukwila Date: 7/12/2012 QC SUMMARY REPORT Polychlorinated Biphenyls (PCB) by EPA 8082 Sample ID: LCSD -2757 Client ID: LCSSO2 Analyte SampType: LCSD Batch ID: 2757 Result Units: mg /Kg Prep Date: 7/9/2012 RunNo: 4942 Analysis Date: 7/11/2012 SeqNo: 94739 RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Sample ID: 1207019- 004CDUP SampType: DUP Client ID: SS-4 Batch ID: 2757 Analyte Result Units: mg /Kg-dry Prep Date: 7/9/2012 RunNo: 4942 Analysis Date: 7/11/2012 SeqNo: 94744 RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Aroclor 1016 Aroclor 1221 Aroclor 1232 Aroclor 1242 Aroclor 1248 Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268 Total PCBs Surr: Decachlorobiphenyl Surr: Tetrachloro-m - xylene ND ND ND ND ND ND ND ND ND ND 41.3 38.2 0.0704 0.0704 0.0704 0.0704 0.0704 0.0704 0.0704 0.0704 0.0704 0.0704 35.21 117 66.1 145 35.21 108 67.2 132 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 30 30 30 30 30 30 30 30 30 30 Sample ID: 1207019 -004CMS SampType: MS Units: mg /Kg-dry Prep Date: 7/9/2012 RunNo: 4942 Client ID: SS-4 Batch ID: 2757 Analysis Date: 7/11/2012 SeqNo: 94745 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Aroclor 1254 Surr: Decachlorobiphenyl Surr: Tetrachloro-m - xylene 1.05 53.2 47.1 0.0897 0.8973 44.86 44.86 0 117 119 105 66.4 66.1 67.2 126 145 132 Qualifiers: B Analyte detected in the associated Method Blank H Holding times for preparation or analysis exceeded R RPD outside accepted recovery limits D Dilution was required E Value above quantitation range J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits Page 36 of 49 Work Order: CLIENT: Project: 1207019 PBS Engineering & Environmental City of Tukwila Date: 7/12/2012 QC SUMMARY REPORT Gasoline by NWTPH -Gx Sample ID: 1207029- 003ADUP SampType: DUP Units: mg /Kg -dry Prep Date: 7/8/2012 RunNo: 4944 Client ID: BATCH Batch ID: R4944 Analysis Date: 7/9/2012 SeqNo: 94767 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Gasoline Surr: 1,2- Dichloroethane -d4 Surr: Fluorobenzene ND 0.626 0.638 6.47 0.6470 0.6470 96.7 98.6 65 65 135 135 0 0 0 0 30 Sample ID: LCS -R4944 SampType: LCS Units: mg /Kg Prep Date: 7/8/2012 RunNo: 4944 Client ID: LCSS Batch ID: R4944 Analysis Date: 7/9/2012 SeqNo: 94777 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Gasoline Surr: 1,2- Dichloroethane -d4 Surr: Fluorobenzene 25.6 0.496 0.488 5.00 25.00 0.5000 0.5000 0 103 99.1 97.5 65 65 65 135 135 135 Sample ID: MB -R4944 SampType: MBLK Units: mg /Kg Prep Date: 7/8/2012 RunNo: 4944 Client ID: MBLKS Batch ID: R4944 Analysis Date: 7/8/2012 SeqNo: 94778 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Gasoline Surr: 1,2- Dichloroethane -d4 Surr: Fluorobenzene ND 0.483 0.480 5.00 0.5000 0.5000 96.5 96.1 65 135 65 135 Qualifiers: B Analyte detected in the associated Method Blank ID Dilution was required E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit R RPD outside accepted recovery limits RL Reporting Limit S Spike recovery outside accepted recovery limits Page 37 of 49 Fremont Date: 7/12/2012 Work Order: CLIENT: Project: 1207019 PBS Engineering & Environmental City of Tukwila QC SUMMARY REPORT Volatile Organic Compounds by EPA Method 8260 Sample ID: 1207027- 001BDUP SampType: DUP Units: mg /Kg-dry Prep Date: 7/8/2012 RunNo: 4895 Client ID: BATCH Batch ID: 2759 Analysis Date: 7/9/2012 SeqNo: 93831 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Dichlorodifluoromethane (CFC -12) Chloromethane Vinyl chloride Bromomethane Trichlorofluoromethane (CFC -11) Chloroethane 1,1- Dichloroethene Methylene chloride trans -1,2- Dichloroethene Methyl tert-butyl ether (MTBE) 1,1- Dichloroethane 2,2- Dichloropropane cis -1,2- Dichloroethene Chloroform 1,1,1 - Trichloroethane (TCA) 1,1- Dichloropropene Carbon tetrachloride 1,2- Dichloroethane (EDC) Benzene Trichloroethene (TCE) 1,2- Dichloropropane Bromodichloromethane Dibromomethane cis -1,3- Dichloropropene Toluene trans -1,3- Dichloropropylene 1,1,2- Trichloroethane 1,3- Dichloropropane Tetrachloroethene (PCE) ND ND ND ND ND ND ND 0.136 ND ND ND ND ND ND ND ND ND ND ND 0.0924 ND ND ND ND ND ND ND ND ND 0.126 0.126 0.00420 0.189 0.105 0.126 0.105 0.0420 0.0420 0.105 0.0420 0.105 0.0420 0.0420 0.0420 0.0420 0.0420 0.0630 0.0420 0.0630 0.0420 0.0420 0.0840 0.0420 0.0420 0.0630 0.0630 0.105 0.0420 0 0 0 0 0 0 0 0.1774 0 0 0 0 0 0 0 0 0 0 0 0.09763 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 26.1 0 0 0 0 0 0 0 0 0 0 0 5.52 0 0 0 0 0 0 0 0 0 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required - E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit R RPD outside accepted recovery limits RL Reporting Limit S Spike recovery outside accepted recovery limits Page 38 of 49 Fremont Date: 7/12/2012 Work Order: CLIENT: Project: 1207019 PBS Engineering & Environmental City of Tukwila QC SUMMARY REPORT Volatile Organic Compounds by EPA Method 8260 Sample ID: 1207027- 001BDUP SampType: DUP Units: mg /Kg-dry Prep Date: 7/8/2012 RunNo: 4895 Client ID: BATCH Batch ID: 2759 Analysis Date: 7/9/2012 SegNo: 93831 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Dibromochloromethane 1,2- Dibromoethane (EDB) Chlorobenzene 1,1,1,2- Tetrachloroethane Ethylbenzene m,p- Xylene o-Xylene Styrene Isopropylbenzene Bromoform 1,1,2,2 - Tetrachloroethane n- Propylbenzene Bromobenzene 1,3,5- Trimethylbenzene 2- Chlorotoluene 4- Chlorotoluene tert- Butylbenzene 1,2,3 - Trichloropropane 1,2,4 - Trichlorobenzene sec - Butylbenzene 4- Isopropyltoluene 1,3- Dichlorobenzene 1,4- Dichlorobenzene n- Butylbenzene 1, 2- Dichlorobenzene 1,2- Dibromo-3- chloropropane 1,2,4- Trimethylbenzene Hexachlorobutadiene Naphthalene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0630 0.0105 0.0420 0.0630 0.0630 0.0420 0.0420 0.0420 0.168 0.0420 0.0420 0.0420 0.0630 0.0420 0.0420 0.0420 0.0420 0.0420 0.105 0.0420 0.0420 0.0420 0.0420 0.0420 0.0420 0.0630 0.0420 0.210 0.0630 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit R RPD outside accepted recovery limits RL Reporting Limit S Spike recovery outside accepted recovery limits Page 39 of 49 Fremont Date: 7/12/2012 Work Order: CLIENT: Project: 1207019 PBS Engineering & Environmental City of Tukwila QC SUMMARY REPORT Volatile Organic Compounds by EPA Method 8260 Sample ID: 1207027- 001BDUP SampType: DUP Units: mg /Kg-dry Prep Date: 7/8/2012 RunNo: 4895 Client ID: BATCH Batch ID: 2759 Analysis Date: 7/9/2012 SeqNo: 93831 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual 1,2,3- Trichlorobenzene Surr: 1- Bromo -4- fluorobenzene Surr: Dibromofluoromethane Surr: Toluene -d8 NOTES: Methylene Chloride is a common laboratory solvent. ND 1.07 0.993 1.06 0.0420 1.050 1.050 1.050 102 94.6 101 63.1 67.6 78.5 141 119 126 0 0 0 0 0 30 Sample ID: 1207027- 002BMS SampType: MS Units: mg /Kg-dry Prep Date: 7/8/2012 RunNo: 4895 Client ID: BATCH Batch ID: 2759 Analysis Date: 7/9/2012 SeqNo: 93833 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Dichlorodifluoromethane (CFC -12) Chloromethane Vinyl chloride Bromomethane Trichlorofluoromethane (CFC -11) Chloroethane 1,1- Dichloroethene Methylene chloride trans -1,2- Dichloroethene Methyl tert -butyl ether (MTBE) 1,1- Dichloroethane 2,2- Dichloropropane cis -1,2- Dichloroethene Chloroform 1,1,1 - Trichloroethane (TCA) 1,1- Dichloropropene Carbon tetrachloride 1,2- Dichloroethane (EDC) 1.32 1.55 1.70 1.31 1.14 1.12 1.58 1.73 1.70 1.59 1.72 1.24 1.63 1.55 1.77 1.68 1.72 1.60 0.138 0.138 0.00460 0.207 0.115 0.138 0.115 0.0460 0.0460 0.115 0.0460 0.115 0.0460 0.0460 0.0460 0.0460 0.0460 0.0689 2.298 0 57.6 2.298 0 67.6 2.298 0 73.9 2.298 0 57.2 2.298 0 49.5 2.298 0 48.5 2.298 0 68.9 2.298 0.1804 67.5 2.298 0.01494 73.5 2.298 0 69.2 2.298 0 75.0 2.298 0 53.9 2.298 0.02528 70.0 2.298 0.01494 66.7 2.298 0 76.9 2.298 0 73.1 2.298 0 74.7 2.298 0 69.7 70 70 70 70 70 70 58.3 70 70 70 70 70 70 70 70 70 70 70 130 130 130 130 130 130 144 130 130 130 130 130 130 130 130 130 130 130 S S S S S S S S S S Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit R RPD outside accepted recovery limits RL Reporting Limit S Spike recovery outside accepted recovery limits Page 40 of 49 Work Order: CLIENT: Project: 1207019 PBS Engineering & Environmental City of Tukwila Date: 7/12/2012 QC SUMMARY REPORT Volatile Organic Compounds by EPA Method 8260 Sample ID: 1207027 -002BMS SampType: MS Units: mg /Kg-dry Prep Date: 7/8/2012 RunNo: 4895 Client ID: BATCH Batch ID: 2759 Analysis Date: 7/9/2012 SeqNo: 93833 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Benzene Trichloroethene (TCE) 1, 2- Dichloropropane B romodichlorometh ane Dibromomethane cis -1,3- Dichloropropene Toluene trans -1,3- Dichloropropylene 1,1,2- Trichloroethane 1,3- Dichloropropane Tetrachloroethene (PCE) Dibromochloromethane 1,2- Dibromoethane (EDB) Chlorobenzene 1,1,1,2 - Tetrachloroethane Ethylbenzene m,p- Xylene o-Xylene Styrene Isopropylbenzene Bromoform 1,1,2, 2- Tetrachlorcethane n- Propylbenzene Bromobenzene 1,3,5- Trimethylbenzene 2- Chlorotoluene 4- Chlorotoluene tert - Butylbenzene 1,2,3- Trichloropropane 1.70 1.70 1.67 1.59 1.54 1.45 1.83 1.45 1.49 1.57 1.39 1.55 1.56 1.61 1.64 1.80 3.54 1.79 1.67 1.73 1.50 1.39 1.63 1.53 1.67 1.61 1.57 1.73 1.67 0.0460 0.0689 0.0460 0.0460 0.0919 0.0460 0.0460 0.0689 0.0689 0.115 0.0460 0.0689 0.0115 0.0460 0.0689 0.0689 0.0460 0.0460 0.0460 0.184 0.0460 0.0460 0.0460 0.0689 0.0460 0.0460 0.0460 0.0460 0.0460 2.298 2.298 2.298 0 2.298 0 2.298 0 2.298 0 2.298 0.01723 2.298 0 2.298 0 2.298 0 2.298 0 2.298 0 2.298 0 2.298 0 2.298 0 2.298 0 4.595 0.01264 2.298 0.006893 2.298 2.298 2.298 2.298 2.298 2.298 2.298 2.298 2.298 2.298 2.298 0 0.1367 74.1 78 67.8 74.9 72.7 70 69.0 70 66.9 70 63.2 70 78.8 76.3 63.2 70 64.8 70 68.3 70 60.3 46.8 67.3 70 67.9 70 70.1 68.9 71.5 70 78.4 70 76.8 70 77.8 70 0 72.8 70 0 75.4 70 0 65.4 70 0 60.4 70 0 71.1 70 0 66.7 70 0 72.5 70 0 70.1 70 0 68.4 70 0 75.2 70 0 72.5 70 120 125 130 130 130 130 124 130 130 130 128 130 130 124 130 130 130 130 130 130 130 S 130 S 130 130 S 130 130 130 S 130 130 S S S S S S S S S S Qualifiers: B Analyte detected in the associated Method Blank H Holding times for preparation or analysis exceeded R RPD outside accepted recovery limits D Dilution was required E Value above quantitation range J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits Page 41 of 49 Fremont Date: 7/12/2012 Work Order: CLIENT: Project: 1207019 PBS Engineering & Environmental City of Tukwila QC SUMMARY REPORT Volatile Organic Compounds by EPA Method 8260 Sample ID: 1207027- 002BMS SampType: MS Units: mg /Kg-dry Prep Date: 7/8/2012 RunNo: 4895 Client ID: BATCH Batch ID: 2759 Analysis Date: 7/9/2012 SeqNo: 93833 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual 1,2,4 - Trichlorobenzene 1.42 0.115 sec - Butylbenzene 1.65 0.0460 4-lsopropyltoluene 1.59 0.0460 1,3- Dichlorobenzene 1.52 0.0460 1,4- Dichlorobenzene 1.52 0.0460 n- Butylbenzene 1.44 0.0460 1,2- Dichlorobenzene 1.51 0.0460 1,2- Dibromo-3- chloropropane 1.37 0.0689 1,2,4 - Trimethylbenzene 1.63 0.0460 Hexachlorobutadiene 1.52 0.230 Naphthalene 1.35 0.0689 1,2,3 - Trichlorobenzene 1.40 0.0460 Surr: 1- Bromo -4- fluorobenzene 1.19 Surr: Dibromofluoromethane 1.10 Surr: Toluene -d8 1.14 NOTES: 2.298 2.298 2.298 2.298 2.298 2.298 2.298 2.298 2.298 2.298 2.298 2.298 1.149 1.149 1.149 0 0 0 0 0 0 0 0 0 0 0.01494 0 62.0 71.8 69.2 66.2 66.2 62.7 65.5 59.7 70.8 66.2 58.0 61.1 103 95.7 98.9 70 70 70 70 70 70 70 70 70 70 70 70 63.1 67.6 78.5 S - Spike recovery indicates a possible matrix effect. The method is in control as indicated by the Laboratory Control Sample (LCS). 130 130 130 130 130 130 130 130 130 130 130 130 141 119 126 Sample ID: ICV -2759 SampType: ICV Units: mg /Kg Prep Date: 7/8/2012 RunNo: 4895 Client ID: ICV Batch ID: 2759 Analysis Date: 7/8/2012 SeqNo: 93835 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Tetrachloroethene (PCE) Surr: 1- Bromo- 4- fluorobenzene Surr: Dibromofluoromethane Surr: Toluene -d8 18.3 9.94 10.1 9.93 0.0200 20.00 10.00 10.00 10.00 0 91.7 99.4 101 99.3 70 63.1 67.6 78.5 130 141 119 126 Qualifiers: B Analyte detected in the associated Method Blank H Holding times for preparation or analysis exceeded R RPD outside accepted recovery limits D Dilution was required J Analyte detected below quantitation limits RL Reporting Limit E Value above quantitation range ND Not detected at the Reporting Limit S Spike recovery outside accepted recovery limits Page 42 of 49 Frernont Date: 7/12/2012 Work Order: CLIENT: Project: 1207019 PBS Engineering & Environmental City of Tukwila QC SUMMARY REPORT Volatile Organic Compounds by EPA Method 8260 Sample ID: LCS -2759 SampType: LCS Units: mg /Kg Prep Date: 7/8/2012 RunNo: 4895 Client ID: LCSS Batch ID: 2759 Analysis Date: 7/9/2012 SegNo: 93836 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val _ %RPD RPDLimit Qual Dichlorodifluoromethane (CFC -12) Chloromethane Vinyl chloride Bromomethane Trichlorofluoromethane (CFC -11) Chloroethane 1,1- Dichloroethene Methylene chloride trans -1,2- Dichloroethene Methyl tert -butyl ether (MTBE) 1,1- Dichloroethane 2,2- Dichloropropane cis -1,2- Dichloroethene Chloroform 1,1,1 - Trichloroethane (TCA) 1,1- Dichloropropene Carbon tetrachloride 1,2- Dichloroethane (EDC) Benzene Trichloroethene (TCE) 1,2- Dichloropropane Bromodichloromethane Dibromomethane cis -1,3- Dichloropropene Toluene trans -1,3- Dichloropropylene 1,1,2 -T richloroethane 1,3- Dichloropropane Tetrachloroethene (PCE) 1.02 0.972 1.08 1.15 1.08 0.980 1.11 1.18 1.11 1.08 1.12 0.832 1.05 1.02 1.14 1.12 1.15 1.09 1.10 1.16 1.11 1.12 1.09 1.06 1.17 1.06 1.04 1.08 1.38 0.0600 0.0600 0.00200 0.0900 0.0500 0.0600 0.0500 0.0200 0.0200 0.0500 0.0200 0.0500 0.0200 0.0200 0.0200 0.0200 0.0200 0.0300 0.0200 0.0300 0.0200 0.0200 0.0400 0.0200 0.0200 0.0300 0.0300 0.0500 0.0200 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 102 97.2 108 115 108 98.0 111 118 111 108 112 83.2 105 102 114 112 115 109 110 116 111 112 109 106 117 106 104 108 138 70 70 70 70 70 70 62.8 70 70 70 70 70 70 70 70 70 70 70 76.7 74.2 70 70 70 70 77.5 70 70 70 51.7 130 130 130 130 130 130 130 130 130 130 130 130 130 130 130 130 130 130 120 126 130 130 130 130 120 130 130 130 123 S Qualifiers: B Analyte detected in the associated Method Blank H Holding times for preparation or analysis exceeded R RPD outside accepted recovery limits D Dilution was required J Analyte detected below quantitation limits RL Reporting Limit E Value above quantitation range ND Not detected at the Reporting Limit S Spike recovery outside accepted recovery limits Page 43 of 49 Work Order: CLIENT: Project: 1207019 PBS Engineering & Environmental City of Tukwila Date: 7/12/2012 QC SUMMARY REPORT Volatile Organic Compounds by EPA Method 8260 Sample ID: LCS -2759 SampType: LCS Units: mg /Kg Prep Date: 7/8/2012 RunNo: 4895 Client ID: LCSS Batch ID: 2759 Analysis Date: 7/9/2012 SegNo: 93836 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Dibromochloromethane 1,2- Dibromoethane (EDB) Chlorobenzene 1,1,1,2- Tetrachloroethane Ethylbenzene m,p- Xylene o-Xylene Styrene Isopropylbenzene Bromoform 1,1,2,2- Tetrachloroethane n- Propylbenzene Bromobenzene 1, 3,5- Trimethylbenzene 2- Chlorotoluene 4- Chlorotoluene tert - Butylbenzene 1,2,3- Trichloropropane 1, 2,4- Trichlorobenzene sec - Butylbenzene 4- Isopropyltoluene 1,3- Dichlorobenzene 1,4- Dichlorobenzene n- Butylbenzene 1,2- Dichlorobenzene 1,2- Dibromo-3- chloropropane 1,2,4- Trimethylbenzene Hexachlorobutadiene Naphthalene 1.15 1.08 1.05 1.09 1.17 2.35 1.18 1.10 1.14 1.16 0.952 1.10 1.05 1.13 1.08 1.07 0.932 1.03 1.08 1.13 1.10 1.05 1.05 1.06 1.04 1.05 1.11 1.13 0.996 0.0300 0.00500 0.0200 0.0300 0.0300 0.0200 0.0200 0.0200 0.0800 0.0200 0.0200 0.0200 0.0300 0.0200 0.0200 0.0200 0.0200 0.0200 0.0500 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0300 0.0200 0.100 0.0300 1.000 1.000 1.000 1.000 1.000 2.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 0 115 0 108 0 105 0 109 0 117 0 118 0 118 0 110 0 114 0 116 0 95.2 0 110 0 105 0 113 0 108 0 107 0 93.2 0 103 0 108 0 113 0 110 0 105 0 105 0 106 0 104 0 105 0 111 0 113 0 99.6 70 70 75.6 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 130 130 120 130 130 130 130 130 130 130 130 130 130 130 130 130 130 130 130 130 130 130 130 130 130 130 130 130 130 Qualifiers: B Analyte detected in the associated Method Blank H Holding times for preparation or analysis exceeded R RPD outside accepted recovery limits D Dilution was required J Analyte detected below quantitation limits RL Reporting Limit E Value above quantitation range ND Not detected at the Reporting Limit S Spike recovery outside accepted recovery limits Page 44 of 49 Work Order: CLIENT: Project: 1207019 PBS Engineering & Environmental City of Tukwila Date: 7/12/2012 QC SUMMARY REPORT Volatile Organic Compounds by EPA Method 8260 Sample ID: LCS -2759 SampType: LCS Units: mg /Kg Prep Date: 7/8/2012 RunNo: 4895 Client ID: LCSS Batch ID: 2759 Analysis Date: 7/9/2012 SeqNo: 93836 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual 1,2,3- Trichlorobenzene Surr: 1- Bromo -4- fluorobenzene Surr: Dibromofluoromethane Surr: Toluene -d8 NOTES: S- Recovery for PCE read high (138.5 %) - High Bias. There were no detections in either of the samples. An Internal Calibration Verification (ICV) - 2nd source was included and was within range. 1.05 0.503 0.501 0.498 0.0200 1.000 0.5000 0.5000 0.5000 0 105 101 100 99.5 70 63.1 67.6 78.5 130 141 119 126 Sample ID: MB -2759 SampType: MBLK Units: mg /Kg Prep Date: 7/8/2012 RunNo: 4895 Client ID: MBLKS Batch ID: 2759 Analysis Date: 7/8/2012 SeqNo: 93837 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Dichlorodifluoromethane (CFC -12) Chloromethane Vinyl chloride Bromomethane Trichlorofluoromethane (CFC -11) Chloroethane 1,1- Dichloroethene Methylene chloride trans -1,2- Dichloroethene Methyl tert -butyl ether (MTBE) 1,1- Dichloroethane 2,2- Dichloropropane cis -1,2- Dichloroethene Chloroform 1,1,1 - Trichloroethane (TCA) 1,1- Dichloropropene Carbon tetrachloride 1,2- Dichloroethane (EDC) ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0600 0.0600 0.00200 0.0900 0.0500 0.0600 0.0500 0.0200 0.0200 0.0500 0.0200 0.0500 0.0200 0.0200 0.0200 0.0200 0.0200 0.0300 Qualifiers: B Analyte detected in the associated Method Blank H Holding times for preparation or analysis exceeded R RPD outside accepted recovery limits D Dilution was required E Value above quantitation range J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits Page 45 of 49 Work Order: CLIENT: Project: 1207019 PBS Engineering & Environmental City of Tukwila Date: 7/12/2012 QC SUMMARY REPORT Volatile Organic Compounds by EPA Method 8260 Sample ID: MB -2759 SampType: MBLK Units: mg /Kg Prep Date: 7/8/2012 RunNo: 4895 Client ID: MBLKS Batch ID: 2759 Analysis Date: 7/8/2012 SeqNo: 93837 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Benzene Trichloroethene (TCE) 1,2- Dichloropropane B romodichlorometh ane Dibromomethane cis -1,3- Dichloropropene Toluene trans -1,3- Dichloropropylene 1,1,2- Trichloroethane 1,3- Dichloropropane Tetrachloroethene (PCE) D i b rom och l orom eth ane 1,2- Dibromoethane (EDB) Chlorobenzene 1,1,1,2 - Tetrachloroethane Ethylbenzene m,p- Xylene o-Xylene Styrene Isopropylbenzene Bromoform 1,1,2,2 - Tetrachloroethane n- Propylbenzene Bromobenzene 1,3,5 - Trimethylbenzene 2- Chlorotoluene 4- Chlorotoluene tert- Butylbenzene 1,2,3- Trichloropropane ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0200 0.0300 0.0200 0.0200 0.0400 0.0200 0.0200 0.0300 0.0300 0.0500 0.0200 0.0300 0.00500 0.0200 0.0300 0.0300 0.0200 0.0200 0.0200 0.0800 0.0200 0.0200 0.0200 0.0300 0.0200 0.0200 0.0200 0.0200 0.0200 Qualifiers: 8 Analyte detected in the associated Method Blank H Holding times for preparation or analysis exceeded R RPD outside accepted recovery limits D Dilution was required J Analyte detected below quantitation limits RL Reporting Limit E Value above quantitation range ND Not detected at the Reporting Limit S Spike recovery outside accepted recovery limits Page 46 of 49 Fremont Date: 7/12/2012 Work Order: CLIENT: Project: 1207019 PBS Engineering & Environmental City of Tukwila QC SUMMARY REPORT Volatile Organic Compounds by EPA Method 8260 Sample ID: MB -2759 SampType: MBLK Units: mg /Kg Prep Date: 7/8/2012 RunNo: 4895 Client ID: MBLKS Batch ID: 2759 Analysis Date: 7/8/2012 SeqNo: 93837 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual 1,2,4 - Trichlorobenzene sec - Butylbenzene 4- Isopropyltoluene 1,3- Dichlorobenzene 1,4- Dichlorobenzene n- Butylbenzene 1,2- Dichlorobenzene 1,2- Dibromo-3- chloropropane 1,2,4- Trimethylbenzene Hexachlorobutadiene Naphthalene 1,2,3- Trichlorobenzene Surr: 1- Bromo- 4- fluorobenzene Surr: Dibromofluoromethane Surr: Toluene -d8 ND 0.0500 ND 0.0200 ND 0.0200 ND 0.0200 ND 0.0200 ND 0.0200 ND 0.0200 ND 0.0300 ND 0.0200 ND 0.100 ND 0.0300 ND 0.0200 0.511 0.5000 102 63.1 141 0.500 0.5000 99.9 67.6 119 0.510 0.5000 102 78.5 126 Qualifiers: B Analyte detected in the associated Method Blank H Holding times for preparation or analysis exceeded R RPD outside accepted recovery limits D Dilution was required E Value above quantitation range J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits Page 47 of 49 Fremont Sample Log -In Check List Client Name: PBS Work Order Number: 1207019 Date Received: 715/2012 1:30:00 PM Logged by: Clare Griggs Chain of Custodv 1 Were custodial seals present? Yes No 2 Is Chain of Custody complete? Yes No 3 How was the sample delivered? Client ❑d No Log In ❑d No 4. Coolers are present? Yes ❑d No 5 Was an attempt made to cool the samples? Yes ❑d No 6 Were all coolers received at a temperature of >0° C to 10.0 °C Yes No d❑ Collected and'delivered direct to lab (see COC). 7 Sample(s) in proper container(s)? Yes R] No 8 Sufficient sample volume for indicated test(s)? Yes 91 No 9. Are samples properly preserved? Yes No 10. Was preservative added to bottles? Yes No R] 11. Is there headspace present in VOA vials? 12. Did all sample containers arrive in good condition ?(unbroken) 13. Does paperwork match bottle labels? 14. Are matrices correctly identified on Chain of Custody? 15. Is it clear what analyses were requested? 16. Were all holding times able to be met? Special Handlin if a licable) 17 Was client notified of all discrepancies with this order? Person Notified: By Whom: Regarding: Client Instructions: 18 Additional remarks /Disrepancies Item Information Item Temp °C I Condition Cooler 1 11.5 Page 1 of 1 Yes No Yes No Yes No Yes No Yes ❑d No Yes ❑d No Not Required Not Present NA NA NA NA NA ❑d Yes No NA d❑ Date: Via: eMail Phone Fax In Person Page 48 of 49 147 chain of custody record -f Y City of Tukwila Comprehensive Plan Zoning Map "bpi o �M1r r 5� 1:. ..�ii�w axemzn.. "n dx i. ,e ii a�,u,e.zAe r. ANTI EXATION f• 11 N 1,W M ��,�eaaw�aA (ACC OV�,on xe „nx,w. n ao:aoo'I oeaas aoAae a e 1Mxe a e Izo ztes I zz:s 7 J Tnn;V VIII TI fic 04 W, �s 'A�RENrON n� h� F in �Ta A. EM i f._rr�� qtr sEATAC Legend LDR Low Density Re,,denlr.,l MDR Medium Density Re,1denlr.,l S I. F 7 1 HDR High Density Re,,denlr.,l F MUO Mixed Use O{ {ire >r 0 Off "e �RCC Residenel Co Cen NCC rve gli I d Cn nnerr .n Center lit}' 'iij RC Reyiuu,I Co ,RCM Regio ml Co M Use ra TUC Tukw 1.1 U11 l Cen CU Cnnneru.nLight Indrsln.n F_ LI Lighl lndminal HI Heavy Inanslrrn �r�l�I�rti MIaL Me, n{e rwr,y l,dnslr�.n ce,ler,Liyhu,dnslr�.n MIC1H Word rwr TVS Tukwila galley South Overlays and Sub Areas Pubhr Rel-11 ul OVedzly �1 TIB Urban Renewal OVerl:ry Dnlnll T kwla South Ov,,Izy Dnlrirl T kwtla Drbel Center Boundary 7 Mann {arwring,IndnswalCenter Boundary Attachment C TrIZ' City Lands Polenhal Annexation Areas I� Shor eline Overlay (Approximately 200 earh side of the river) 149 I Tukwila City Council Committee of the Whole Meeting City Hall Council Chambers June 25, 2012 7:00 P.M. MINUTES COMMITTEE OF THE WHOLE CALL TO ORDER/PLEDGE OF ALLEGIANCE Council President Seal called the Tukwila City Council meeting to order at 7:03 p.m. and led the audience in the Pledge of Allegiance. OFFICIALS Present were Verna Seal, Council President, Councilmembers Joe Duffie, Dennis Robertson, Allan Ekberg, Kathy Hougardy, De'Sean Quinn, Kate Kruller. CITY OFFICIALS Jim Haggerton, Mayor; David Cline, City Administrator; Bruce Linton, Assistant Police Chief; Dennis McOmber, Police Commander; Nick Olivas, Fire Chief; Steve Rydeen, Firefighter; Frank Iriarte, Public Works Deputy Director; Pat Brodin, Public Works Operations Manager; Jack Pace, Community Development Director; Minnie Dhaliwal, Planning Supervisor; Peggy McCarthy, Finance Director; Derek Speck, Economic Development Administrator; Mary Miotke, Information Technology Director; Kimberly Matej, Council Analyst; Melissa Hart, Deputy City Clerk. CITIZEN COMMENTS There were no citizen comments. PUBLIC HEARING a. Tukwila Potential Annexation Area (PAA) North Highline. Jack Pace, Community Development Director, explained a request for annexation was received on May 17, 2012 from the property owners representing at least 10% of the assessed value of the proposed annexation area. On May 21, 2012, the City Council accepted the 10% petition and authorized the circulation of the 60% petition. On June 5, 2012, the property owners representing at least 60% of the assessed value of the proposed annexation area (Tukwila's PAA) submitted their petition to commence annexation proceedings. The King County Assessor validated the petition on June 7, 2012. On June 11, 2012 the Council set the public hearing date for June 25, 2012. Minnie Dhaliwal, Planning Supervisor, explained there are several property owners who signed the petition in attendance this evening. Ms. Dhaliwal utilized a PowerPoint presentation to review the staff analysis and informational memorandum in the agenda packet (pages 3 -11). Highlights of the presentation included: The Potential Annexation area is approximately 166 acres, consisting of 25 parcels This area represents $97,616,700 in total assessed property value A marina is part of the potential annexation with 18 live- aboard residents This annexation involves the direct petition method The impacts of the annexation on government services: Potential revenue: Utility tax Storm Drainage Sales and Property Tax Business License and Revenue Generating Regulatory License fees Potential expenses: Attachment D 151 Tukwila City Council Committee of the Whole Minutes June 25, 2012 Page 2 of 6 o Road maintenance and storm drain catch basin clean -up o One -time expenses related to studying the extent of contamination (storm drain outfall testing) Simultaneous Adoption of Zoning o Current Comprehensive Plan designation of Manufacturing Industrial Center /Heavy (MIC /H) and Manufacturing Industrial Center /Light (MIC /L) Potential Risks and Liabilities o Environmental liabilities o LEOFF1 fire pension liability Next steps o Staff report back to Council 7:22 p.m. Council President Seal opened the Public Hearing. Jamie Durkan, 22403 Sweeney Road, Maple Valley, stated he is representing the Desimone Trust. He explained the Desimone family was contacted by City officials relating to the potential annexation of this area into Tukwila. They are in favor of the annexation as they like working with the Tukwila City Council. They do have some concerns with accepting Tukwila's MIC /H zoning for the proposed annexation area. He explained the property owners currently operate a marina in this area, and the City's current zoning does not list marinas. He said if the annexation moves forward, they will be requesting a letter of interpretation allowing the marina to remain. Upon final annexation, they will follow up with a code amendment request relating to marinas in the MIC /H zone. 7:24 p.m. Council President Seal closed the Public Hearing. SPECIAL ISSUES a. Tukwila Potential Annexation Area (PAA) North Highline. If the City Council concurs with the annexation, staff will prepare an annexation packet for submission to the King County Boundary Review Board (BRB). Analysis of how the proposed annexation complies with the Growth Management Act, County Wide Planning Policies, and BRB review criteria (RCW 36.93.170) is required to be submitted with the Notice of Intent to annex. Councilmember Ekberg asked about the current King County zoning for the area and what non- conforming uses would be inherited with the proposed annexation. Ms. Dhaliwal explained the light industrial areas are similar to the City's current Comprehensive Plan designation. There are special provisions in the Tukwila code relating to office establishments that were established prior to 1995. The proposed annexation area is designated in the City's Comprehensive Plan as MIC /H, and staff can research this issue if the Council so chooses. Comparing King County's and Tukwila's zoning is like comparing apples to oranges due to the differences in the list of allowable uses between the two codes. She clarified King County's current zoning generally allows the same type of uses as Tukwila's MIC /H zoning. Councilmember Robertson asked for clarification on the Fire Department information that is on page 6 of the agenda packet relating to response times, and how the Fire Department would respond to a marina fire. Additionally, he inquired whether the potential annexation area would increase the tax base for the Tukwila Metropolitan Park District (MPD). Nick Olivas, Fire Chief, explained Fire Department staff completed 2 trial runs to the proposed annexation area from station quarters. During the trial runs, staff did not use sirens and they stopped at the stop lights. After completing the 2 trial runs, it was determined an engine company in quarters could respond to a call in 5 minutes. Recent discussions with staff on the best approach to respond to a marina fire would be to use a portable pumper and request fire boat assistance from Seattle. 152 Tukwila City Council Committee of the Whole Minutes June 25, 2012 Page 3 of 6 Peggy McCarthy, Finance Director, clarified staff previously made inquiries about the taxing authority of the MPD in relation to the proposed annexation area. It is her understanding that an annexation area would be subject to the property tax for the MPD; however, she will follow up on her original information request and update the Council when she receives the information. Councilmember Kruller asked if staff could include the City's MIC zoning map in future agenda packets. Ms. Dhaliwal answered in the affirmative. Additionally, she inquired whether the proposed annexation area along the Duwamish River consists of a Super Fund site and any other potential liabilities for the City. Ms. Dhaliwal said it is her understanding that the area is in proximity to the Lower Duwamish Waterway clean -up location, and staff is in the process of doing additional review. Public Works staff has suggested the City undertake testing within the storm drains to identify any potential stormwater runoff issues. Mr. Pace stated that annexing the area into Tukwila does not eliminate the property owner's responsibility. Staff has been reviewing the infrastructure that Tukwila would be responsible for, such as roads and stormwater systems. Staff has met with the City Attorney, reviewed the current practices of King County relating to the area, and had conversations with the Department of Ecology. The main unknown at this time involves the stormwater issues. Councilmember Robertson asked how the proposed annexation area would be affected by the City's Shoreline Master Program. Mr. Pace stated the current uses in the annexation area along the Duwamish River match the City's Shoreline Master Program. The issues involve the current zoning versus the City's zoning code. Council President Seal announced staff will conclude their research on the items listed in the informational memorandum and return to a future Council meeting. b. A contract for the Alive and Free Program. Councilmember Quinn indicated this item was discussed at the Finance and Safety Committee meeting on June 19, 2012. The committee members were unanimous in recommending approval. Dennis McOmber, Police Commander, explained the Police Department and City Administration are seeking Council approval to sign a Memorandum of Understanding with the Valley Cities for implementation of the joint funding program known as "Alive and Free." In 2011, Tukwila Police staff met with other valley police agencies to explore a gang violence prevention program. "A Better Seattle" (a community relations program led by the Seattle Seahawks) and the YMCA of Greater Seattle Alive Free have partnered with the City. The proposed program hires and trains "Street Outreach Workers" to address youth gangs in south King County. The program is currently active in Seattle and used effectively in Los Angeles, Baltimore, Chicago, and Washington DC. The City's portion of this program totals $60,000, with half of it to be funded from "A Better Seattle," and staff recommends the other half be funded from the City's Drug Forfeiture Accounts for 2012. The Council exchanged comments and thanked staff for their work on this program. COUNCIL CONSENSUS EXISTED TO FORWARD THIS ITEM TO THE NEXT REGULAR MEETING. c. A resolution ratifying the amended and restated Cascade Water Alliance Interlocal Agreement. Councilmember Robertson indicated this item was discussed at the Utilities Committee meetings on May 15 and June 12, 2012. The committee members were unanimous in recommending approval. Cascade Water Alliance (CWA) has requested to change from a Watershed Management Partnership to a municipal corporation and become a Joint Municipal Utility Service Authority (JMUSA). Approval by resolution is needed from each of CWA's 8 members. The Council is being asked to approve the draft 153 Tukwila City Council Committee of the Whole Minutes June 25, 2012 Page 4 of 6 resolution which converts CWA into an authority under JMUSA and also converts the City's current Interlocal Agreement into a Cascade Water Alliance Joint Municipal Utility Services Agreement. Councilmember Robertson stated the Utilities Committee had questions relating to sections 4.7, "Budget, Dues; Financial Management," And 9.2, "Withdrawals, in the proposed agreement. He asked staff to clarify the costs associated with those two specific sections. Pat Brodin, Public Works Operations Manager, introduced Chuck Clarke, Chief Executive Officer of Cascade Water Alliance. Mr. Clarke explained section 4.7, "Budget, Dues; Financial Management," was originally crafted when CWA formed 13 years ago. The paragraph relating to dues (second paragraph of section 4.7) was based on the assumption of rapid and extensive growth in the cities of Covington, Issaquah and Sammamish. Due to this growth, those three cities would then be responsible for a higher share of CWA's administrative costs. It was discovered that all member cities were paying 5% of CWA's administrative costs, and those costs were not being charged to Covington, Issaquah and Sammamish. In 2011 the CWA board requested an amendment to the current interlocal agreement to correct that issue, and to raise the member cities dues from 5% to 9 Over the years, the administrative costs exceeded the established 5% and an increase was necessary. The final result of the change in dues structure requires all member cities to pay the 9% dues, rather than limiting dues to cities with water consumption. Section 9.2, "Withdrawals," clarifies that any member city that elects to withdraw from CWA will be responsible for their share of the CWA bonds and administrative costs so as not to burden the remaining member cities. The Council exchanged comments and asked clarifying questions of staff on the above topic. COUNCIL_ CONSENSUS EXISTED TO FORWARD THIS ITEM TO THE NEXT REGULAR MEETING. d. Tukwila Village library proposed deal terms. Derek Speck, Economic Development Administrator, explained City Administration and King County Library System (KCLS) have agreed on proposed deal terms for constructing a new library on the Tukwila Village site. The Council is being asked to consider and approve the proposed deal terms at the Special Meeting to follow the Committee of the Whole meeting. Mr. Speck utilized a PowerPoint presentation to provide an overview of the proposed key deal terms with the King County Library System. Highlights of the presentation included: 10,000 square foot library at a land price of $500,000. Conceptual site plan approval by KCLS and Tukwila Village Development Associates, LLC to be submitted within 45 days. King County Library System will submit the building permit application within 10 months of Tukwila Village Development Associates, LLC's submittal. King County Library System and the City will close escrow after building permits are ready (or the City can terminate the deal). Construction will commence within 6 months of escrow (or the City may repurchase the property at the current sale price). Complete construction within 2 years of commencement (or the City may repurchase the property at the current sale price). Bill Ptacek, Director of King County Library System, stated they are very excited for progress on an agreement, and KCLS has an architect that is ready to begin this week. KCLS is anxious to proceed with construction of the new Tukwila Library. The KCLS Foundation Board recently toured the Tukwila Village site, and they had a great presentation from Tukwila School District staff. He thanked the Council for their support during this long process. Jeanne Thorsen, King County Library System Foundation Executive Director, indicated the Foundation has 30 board members who are excited to begin fundraising for the new Tukwila Library. She said the Foundation will seek Council support and advice during the fundraising activities. 154 Tukwila City Council Committee of the Whole Minutes June 25, 2012 Page 5 of 6 Sharon Mann, 4452 South 160 Street, stated she is very happy to have the City and KCLS reach an agreement for the new Tukwila Library at the Tukwila Village site. She thanked KCLS, City staff and the Council for moving forward with the Tukwila Village vision. Marie Parrish, 4430 South 150 Street, expressed her appreciation for the continued negotiation efforts by the City Administrator and Economic Development Administrator. The Councilmembers thanked Mr. Ptacek, Ms. Thorsen and City staff for continuing to work through the issues associated with the project and voiced their support for moving forward with the construction of the new 10,000- square -foot Tukwila Library. Mr. Speck explained that if the Council approves the draft deal terms, the next step would be to have the City Attorney begin drafting the final agreement in conjunction with the King County Library System. Upon completion of the final agreement, staff would return to a future Council meeting for Council approval. COUNCIL CONSENSUS EXISTED TO FORWARD THIS ITEM TO THE SPECIAL MEETING THIS EVENING. REPORTS a. Mayor Mayor Haggerton announced the recent passing of two very active Tukwila residents, Paul Gully, who with his wife Betty was a long -time resident and former Tukwila Councilmember Dave Fenton. Mr.. Fenton's memorial will be held on July 1, 2012 from 1:00 -4:00 p.m. at Foster Golf Course. Mayor Haggerton attended the Association of Washington Cities (AWC) Annual Business Conference in Vancouver, WA June 19 -22, 2012. He briefed the Council on some of the top conference speakers and topics of discussion. b. City Council Councilmember Duffie announced the passing of Roy Watters, former Tukwila firefighter. He attended the Teen Kick -off Summer Event on June 22, 2012 at the Tukwila Community Center. On June 23, 2012 he attended the Touch -a -Truck event. Councilmember Ekberg attended the Touch -a -Truck event on June 23, 2012. Councilmember Hougardy attended the Touch -a -Truck event on June 23, 2012. Councilmember Quinn attended the Teen Summer Kick -off event on June 22, 2012 at the Tukwila Community Center. On June 23, 2012 he attended the Touch -a -Truck event. He thanked City staff who volunteered at the event, and congratulated Joyce Trantina, Executive Assistant, for her work on the Strategic Plan and the successful presentation she conducted at Foster High School. Councilmember Kruller attended the Association of Washington Cities Annual Business Conference in Vancouver, WA June 19 -22, 2012. She also attended the most recent State House Government Affairs meeting, and the June 23, 2012 Touch -a -Truck event. Later that afternoon she attended the floating movie event at the Tukwila Pool. Council President Seal attended an MPD marketing committee meeting on June 19, 2012. 155 Tukwila City Council Committee of the Whole Minutes June 25, 2012 Page 6 of 6 c. Staff David Cline, City Administrator, attended the Association of Washington Cities Annual Business Conference in Vancouver, WA June 19 -22, 2012. He thanked the City staff and volunteers for their work at the Teen Summer Kick -off event at the Tukwila Community Center and the Touch -a -Truck event. d. City Attorney The City Attorney's presence is not required at Committee of the Whole meetings. e. Intergovernmental Kimberly Matej, Council Analyst, commented on the number of volunteers and participants at the Touch a -Truck event. MISCELLANEOUS Councilmember Hougardy stated the Council recently approved the creation of a Tukwila Tree and Environment Advisory Committee (Resolution No. 1767), and one Councilmember is to be a member of the committee. She suggested Councilmember Ekberg be the Council's representative on the Tree Committee. Mayor Haggerton announced that he visited the Washington Municipal Clerks Association (WMCA) booth during the AWC Conference, where the Tukwila City Clerk's Office received accolades from the WMCA members. He stated the City has a very good City Clerk's Office and he congratulated the staff. ADJOURNMENT 8:50 p.m. OUNCIL PRESIDENT SEAL DECLARED THE COMMITTEE OF THE WHOLE MEETING ADJOUR D TO CONVENE A SPECIAL MEETING. r Verna Seal, Council President Melissa Hart, Deputy City Clerk APPROVED AND SIGNED BY THE COUNCIL PRESIDENT ON 07/09/2012 AVAILABLE ON THE CITY'S WEBSITE 07/1012012 156