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HomeMy WebLinkAboutPW18-357 - Change Order - #3 - Road Construction Northwest, Inc. - S 228th St UPRR Underground Utilities - 01/12/2019 Records M ENe T � sd �aR o Document: CONTRACT COVER SHEET This is to be completed by the Contract Manager prior to submission to City Clerks Office. All portions are to be completed. If you have questions, please contact City Clerk's Office. Vendor Name: Road Construction Northwest Inc. Vendor Number: JD Edwards Number Contract Number: PW18-357 - oow This is assigned by City Clerk's Office Project Name: S. 2281h St. Union Pacific Railroad Underground Utilities Description: ❑ Interlocal Agreement ® Change Order ❑ Amendment ❑ Contract ❑ Other: Contract Effective Date: 9/13/2018 Termination Date: eo working Days Contract Renewal Notice (Days): Number of days required notice for termination or renewal or amendment Contract Manager: Susanne Smith Department: PW Engineering Contract Amount: $1,923,20,25 Approval y: ( ) ( p pp oval Authority: CIRCLE ONE De artment Director Mayor City Council Detail: (i.e. address, location, parcel number, tax id, etc.): Change Order #3 As of 08/27/14 KE4T w = , .o CHANGE ORDER NO. #3 NAME OF CONTRACTOR: Road Construction Northwest Inc, ("Contractor") CONTRACT NAME & PROJECT NUMBER: S. 228x" St Union Pacific Railroad Underground Utilities ORIGINAL CONTRACT DATE: September 13, 2018 This Change Order amends the above-referenced contract; all other provisions of the contract that are not inconsistent with this Change Order shall remain in effect. For valuable consideration and by mutual consent of the parties, the project contract is modified as follows: 1. Section I of the Agreement, entitled "Description of Work," is hereby modified to add additional work or revise existing work as follows: In addition to work required under the original Agreement and any prior Amendments, Contractor shall provide all labor, materials, and equipment necessary to: Employ specialty subcontractor to sample soil and water in the existing 72" CMP that was suspected to be contaminated. 2. The contract amount and time for performance provisions of Section II "Time of Completion," and Section III, "Compensation," are hereby modified as follows: Original Contract Sum, $1,923,246.25 (including applicable alternates and WSST) Net Change by Previous Change Orders $29,583.92 (incl. applicable WSST) Current Contract Amount $1,952,830.17 (incl. Previous Change Orders) Current Change Order $6,482.13 Applicable WSST Tax on this Change $0.00 Order Revised Contract Sum $1,959,312.30 CHANGE ORDER - 1 OF 3 _....._.........................._........ _ -- _...._ __.._..-- Original Time for Completion 60 working days (insert date) Revised Time for Completion under 0 working days prior Change Orders (insert date) Days Required (f) for this Change Order 0 calendar days Revised Time for Completion 60 working days (insert date) In accordance with Sections 1-04.4 and 1-04.5 of the Kent and WSDOT Standard Specifications, and Section VII of the Agreement, the Contractor accepts all requirements of this Change Order by signing below. Also, pursuant to the above-referenced contract, Contractor agrees to waive any protest it may have regarding this Change Order and acknowledges and accepts that this Change Order constitutes final settlement of all claims of any kind or nature arising from or connected with any work either covered or affected by this Change Order, including, without limitation, claims related to contract time, contract acceleration, onsite or home office overhead, or lost profits. This Change Order, unless otherwise provided, does not relieve the Contractor from strict compliance with the guarantee and warranty provisions of the original contract, particularly those pertaining to substantial completion date. All acts consistent with the authority of the Agreement, previous Change Orders (if any), and this Change Order, prior to the effective date of this Change Order, are hereby ratified and affirmed, and the terms of the Agreement, previous Change Orders (if any), and this Change Order shall be deemed to have applied. The parties whose names appear below swear under penalty of perjury that they are authorized to enter into this contract modification, which is binding on the parties of this contract. 3. The Contractor will adjust the amount of its performance bond (if any) for this project to be consistent with the revised contract sum shown in section 2, above. IN WITNESS, the parties below have executed this Agreement, which will become effective on the last date written be ow. , CONTRACTOR: l C Tl= 4tENT: By: By: a (signature) Print Namr . M' Kanyer Pant Name: Timothv ]. LaPorte. P.E. Its P It§`/" ("/Public Works Director (title) (title) DATE: 12-21-18 DATE: / -/7-1q, CHANGE ORDER - 2 OF 3 ATTEST: APPROVED AS TO FORM: (applicable if Mayor's signature required) Kent City Clerk Kent Law Department [In this field,you may enter the electronic filepath where the contrail has been saved] CHANGE ORDER - 3 OF 3 (CENT FILE NO: 200.2 CHANGE ORDER WORKSHEET NO® 3 o _ nt Division - Public Works Pro ect: S. 22$ St UPRR Underground ..� � �„ Construction lgn ana Projecteme No.: 07-3022C—---- -... -� � Utilities Project Engineer: Mark Madfai Fed-Aid No.: N/A Owners Rep Jas„„..„„. „ . ad � p• on Barry Contraator• Road Construction NW Date: 12/10/18 I. PROPOSED CHANGE Employ specialty subcontractor to sample soil and water in the existing 72" CMP that was sus ected to be contaminated. II. REASON AND BACKGROUND FOR CHANGE While attempting entry into the existing 72" CMP air monitoring equipment alarm ,-indicating potentially harmful air quality. To enure the appropriate actions are taken to work in, and around, this environment the soil and water in the CMP had to be tested for contaminants. The results of this testing will help us determine the appropriate safety measures needed to complete the work in addition to helping us determine the appropriate disposal methods for the potentially contaminated soil and water that must be removed from the piEe. III. METHOD OF PAYMENT NEW PAY ITEM(S) Not Applicable Change Order No. - FOR ACCOUNTING USE ONLY _._ 'Description _ a __. ... .. .._.....,..._......,_--___ - _.....__.... ...._............. -__....__. Sch No. Item Descri tion Total Qty this Unit � �Unit Price Total Estimated Cost of Est. city PE I Item IV Soil & Water Sampling and 1 1.00 LS $6,482.13 $6,48213 Testing i ........ — -_ - -�_..._ _ ..,.,.... .... . .__...... - REOUIRED based of actual ITEM erforbmedement to be made ® PAY THIS PAY S PAY ESTIMATE Independent Estimate Attached - Wla-tgriaQ Submit¢.als Re uir..-d ... 4 ....-. ._. -.... 1....... ,.,... , 5t �� C• t<..anstrivati�rn.-C�+Q-rdrIa FQr New Sub Reqrd? No DELETE EXISTING PAY ITEM(S) per 1-09.5 Z Not Applicable Change Order No. - FOR ACCOUNTING USE ONLY — . ..._ ....._ u._.. _ ........ _ _ Sch. No EI.I. No. i Item Description Qty Unit Unit Price Cost of Item i I i 1_ ...... _.... -......i ..._ Independent Estimate Attached - REQUIRED INCREASE/DECREASE TO EXISTING PAY ITEM(S) Not Applicable Change Order No. I - r FOR ACCOUNTING USE ONLY 1 REV. DATE: 1/10j18 w FILE NO: 200.2 KENT __. . ._. _. , _..._n __ Sch. No. B I. No. I Item... Descption. Qty Unit r Unit rice Cost of.Item Independent Estimate Attached -REQUIRED ' TOTAL ESTIMATED COST OF CHANGE ORDER * 614$2 13 *Total of the Cost of Item Columns THIS PAY ESTIMATE IV. WORKING DAYS Original Contract 60 ` Due This Change Order* - Previous Total 60 DATE: ..DATE: _... _._ _.. * '.. Exola nation/Justification Reouired: TOTAL WORKING DAYS* _ 60 *This Change Order + Previous Total All work, materials and measurements to be in accordance with the Standard Specifications and Contract Special Provisions for the type of work described. Prepared By: {;,., ,� ..w,._. . ' Date ] 5Ppn Barry Construction Supervisor: Date. Paul Kuehne .. Construction Manager: " +. ,&..—= r.�.Z. -'._......._........ Date: _ ✓ �/f/7f"{, :i c Connor 2 REV. DATE: 1/10/18 ROAD CONSTRUCTION NORTHWEST, INC. Force Account Request for Payment F.A.# 99-003 Bid Item# Job DATE 10/25/18 NAME: Kent S 228th UPR REMARKS: oalloway FnVifonmental Take Water and Soil Samples out of Pipe LABOR FORCE Classification Name Hours Rate of Pay TaxeslFringe Gross Rate Total Foreman Chad Van Wieringen 2 $ 47,00 $ 21,08 $ 68,08 $ 136.16 $ $ $ Subtotal $ 136.16 Contractor MN @ 29% 39 49 Total $ 175.66 EQUIPMENT FORCE Equipment# Class Type Hours Gross Rate Total $ - S $ $ Subtotal $ Contractor MN @ 21% - Total $ MATERIALS/ Si SERVICES Description Vendor UDM count Cost Total g - _ Tax on material ......... Subtotal $ - Contractor MN @ 21% -,-; Total $ SUBCONTRACTORS CXassificatl0p Vendor Date Quantity cost Total Soil Testing Gallaway Environmental 25-Oct 1 $ 5,630 79 $ 5,630.79 $ Subtotal $ 5,630.79 Contractor MlU @ 12°/ _ 67569 Total $ 6,306.48 Total labor,equipment,material,subcontractors $ 6,482.13 ReceivedlAccepterl by IOwnap Submitted by IRCNWI Data Phone (425)254-9999 PO Box 2228, Renton WA 98057 Fax(425)254-1334 vv a,i. ..............,o r i pW0%-,Na ICE ox'N"', six)W 0, Stri�i< ,ef ate' ��' k�„` �Ceaa�t i ta ' �wwrmmrcaWMwwpµryapypp,�wfNamnimmrvmmm�mwwrnrnwKuw n�+�mummmmmmn mw a r aniuww�re uwr,rx �� �. m.osnix � v of j w+wnHahawvJnm�wwxrcauw, , ® er ��.. .. r r✓ww /j P �r�IfifA�Ci»l A'6kazrx �Awwv a ov r� a :.�roorw r ao.E.r„��r+».w•,....,.•.�._...,m ,..�..r ......,a .. ..., ����,.....•.,., aa.�wu�,�w,�. r,�.x a��«.�,a rw. ..�. -.,�,u�u��,�,�„wa».wwww,.,..�._, w r�mbru MATULUL, 47D l7" now ` " nw sY6.' d � ,Urw" , .�Y.IjI !l�r r, fir, '` 6H9V YVlf rrY/IN N'M rSrW m•rW(5NJ Itl/2Y l' ,/O/ y�pyryp�µry yervry4WµM�Vuy '�M.mHWpSyyAGmiµwuwwuwwYmuuuxw wummmmrv✓.r✓�/�p�Na�wRupm�r- /r�'^�-/'y—,' .rrrya py��.-'-�*v*---q�ry�++rw Iwurtv ..Am'-n.e.:b'-r rnun Yuu bun w0oo f4WW� pY,Yp � m,n4 4a rovxx gMmw�VY� �i.iww yryup� ww�uuwArvmmrvMOWwu'Awnurnrv�4ba'Nanmmmx�.w��YwWMbkM �.mmnmew+ a f eWiaiuNnmN/wpwux^au^M � �p +' FF��yy$$�� d mnn. HMpo umruwYvwxa•Wxa ww*'+x'+au vwui rvdrvn rss�uwwywrxFWm✓a...mmmmr mlTwmaN'm'piUlWa{rnwraytip/HHYN upripy„vr/.Yua onw w�'ww'wuu m/VdMnmrc�wuuUwwNwwwuw ra, aw�+�'u'wwm+ ^wwrNNorww+ 3 u.,uwa�Mnr��uemrrte�'Wwimmnw.wa'nw✓unr�tianmmrw++.+ r ��w cwvmmry NbMWw rx�rr „r G .awwV'. ,..�,�.-..��" .r�•^-.•' 4��:dS 14 "�M,fir °"� „ >mraamw�. .> rya a� r x _ llr �. i�jN�`r.�•"ram� _.. .._. GALLOWAY ENVIRONMENTAL, INC 15600 NE 6°1 Street,Suite B4,617 (425)894-8607 IIelLevue,WA 98008 w.... €�llYn, 4p( vlfirwn,OrZFni�iro—aitul.coin a November 2, 2018 Invoice Number 3837 GEI Project Number 38023 George Tucker Road Construction Northwest, Inc. PO Box 2228 Renton, WA 98056 E-mailed to. Georae(c rcnw.com Protect Sediment and Water Sampling &Analysis, S. 22811 Street Union Pacific Railroad Underground Utilities Project, Kent, Washington; Contract No. 07-3022 Vendor. GALLOWAY ENVIRONMENTAL, INC. 15600 NE 811 Street, Suite B1, 617 Bellevue, WA 98008 Contract Type; Time & Materials, as per GEI Proposal #2810.04, dated October 23, 2018. Original budget was $4,440.56. Actual costs exceed the original budget due to laboratory surcharges for expedited analyses. Date Completed: Complete Percent Complete: 100% Professional Services. General Environmental Services Dates of Services: October 25, 2018 through October 31, 2018 FEE See attached Cost Breakdown - $5,630.79 TOTAL BALANCE DUE $5,630.79 Thank You! GALLOWAY ENVIRONMENTAL, INC. Dylan Galloway, REA President Enclosures: Cost Breakdown Subcontractor Invoices RCNW Kent Site Environmental Support Invoice Cost Breakdown LABOR COSTS Principal Field Technician Auto CAD Clerical Support Total $90/hr $65/hr $70/hr $45 fhr Task Task 1 -Field tasks(sample collection&submittal-10/25/18) 4.5 0 $405.00 Task 2-Report preparation 10/31/18) 7 $630.00 Total Hours 7 0 0 0 Subtotal Labor Costs. $1,035.00 SUBCONTRACTOR COSTS Subcontractors p Sediment samples(3 samples) &Water sample(1 sample) $3,788.00 Subtotal Subcontractor Costs 33,788.00 EXPENSES Mileage 50 miles @ $0.545(mile $27.25 Tolls/Parking 0 days @$11 /day $0.00 Auto Rental 0 days @$50/day $0.00 Airfare 0 trips @$300/trip $D.00 Per Diem D days @$100/day $0.00 Reproduction 0 pages @$0.09/page $0.00 PID/Combustible gas/Oxygen,CO rental 1 days @$75/day $75,00 Equipment Rental 0 days @$100/day $0,00 5035 Kit 0 samples @$15/sample $0.00 Supplies/Safety Equipment 0 days @$100/day $0.00 Delivery Charges 0 shpmts @$20/shpmt $0.00 Computer Time 0 hours @$3/hour $0.00 Computer Time(formula) 0 hours @$0/hour $0.00 Telephone ld)�0%of Labor $0.00 Suhtotal E':x: eases $102.25 u total Costs $4,925.25 Mark up @ 15.0% of Subcontractor Costs $568.20 Bonds @ 0.0% of Total Costs $0.00 Insurance @ 2.5% of Total Costs $137.34 Excise Tax @ 0.0% of Total Costs $0.00 TOTAL COST $5,630.79 GEI Invoice#3837 November 2,2018 Page 1 k �nSite Enviromental inc. 14648 NE 95" Street, Redmond,WA 98052 a(425) 883-3881 INVOICE NUMBER: 1810-317 Dylan Galloway Galloway Environmental, Inc. 15600 NE 8th Street, Suite B1, 617 Bellevue, WA 98008 ATTENTION: ACCOUNTS PAYABLE Credit terms are net 30 days. Please include the invoice number with your remittance. Invoices are due in full by the due date, unless specifically contracted otherwise. OnSite Environmental, Inc. Federal Tax ID Number is 91-1550636. Past Due Accounts: 1.5%interest per month Date of Report: October 30, 2018 Samples Submitted: October 25, 2018 Project: 38023 Quantity Analysis Turnaround Unit Price Amount 4 NWTPH-Gx/BTEX 3 Days 105.00 $ 420.00 4 NWTPH-Dx 3 Days 105.00 420.00 4 Semivolatiles EPA 8270D/SIM 3 Days 576.00 2,304.00 3 Total Metals EPA 6010D/7471 B 3 Days 154.00 462.00 1 Total Metals EPA 200.8/7470A 3 Days 182.00 182.00 Total Due $3,788.00 ------- ........---- .......-... _..._..... OnSrte Environmental, Inc 14648 NE 95`"Street, Redmond,WA 98052 (425) 883-3881 This report pertains Io the samples analyzed in accordance with the chain of custody, and is intended only for the use of the individual or company to wham it Is addressed. GALLOWAY ENVIRONMENTAL. lNC 15600 NE 8°i Sheet Suite Bl,617 (42.5)SW-8607 Be11et u WA 98008 T1 iu�Y1wv 11{P:4�^ux vv/v avv)rkcav_t v,!y_aru November 2 2018 Invoice Number 3837 GEI Project Number 38023 George Tucker Road Construction Northwest, Inc. PO Box 2228 Renton, WA 98056 E-mailed to: Geore ea)rcnw.com Proiect: Sediment and Water Sampling &Analysis; S. 228t1 Street Union Pacific Railroad Underground Utilities Project, Kent, Washington, Contract No. 07-3022 Vendor: GALLOWAY ENVIRONMENTAL, INC 15600 NE 8" Street, Suite B1, 617 Bellevue, WA 98008 Contract Type: Time& Materials, as per GEI Proposal#2810.04, dated October 23, 2018. Original budget was $4,440,56. Actual costs exceed the original budget due to laboratory surcharges for expedited analyses. Date Complefed: Complete Percent Complete: 100% Professional Services: General Environmental Services Dates of Services October 25, 2018 through October 31, 2018 FEE See attached Cost Breakdown = $5,630.79 TOTAL BALANCE DUE _ $5 630 79 Thank You! GALLOWAY ENVIRONMENTAL, INC. Dylan Galloway, REA President Enclosures', Cost Breakdown Subcontractor Invoices RCNW Kent Site Environmental Support Invoice Cost Breakdown LABOR COSTS Principal Field Technician Auto CAD Clencal Support Total $907hr $651hr $70/hr $45/hr Task Task 1 -Field tasks(sample collection&submittal-10/25/18) 4,5 0 $405.00 Task 2-Report preparation(10/31/18) 7 $630.00 Total Hours 7 0 0 0 Subtotal Labor Costs'. $1,035,00 SUBCONTRACTOR COSTS Subcontractors p Sediment samples(3 samples)&Water sample(1 sample) $3,788.00 Subtotal ubcontraclof Costs $3,758,00 EXPENSES Mileage 50 miles @$0.545/mile $27.25 Tolls/Parking 0 days @$11 /day $0.00 Auto Rental 0 days @$50/day $0,00 Airfare 0 trips @$300/trip WOO Per Diem 0 days @$100/day $0.00 Reproduction 0 pages @$0.09/page $0.00 PID/Combustible gas/Oxygen,CO rental 1 days @$75/day $75.00 Equipment Rental 0 days @$100/day $0.00 5035 Kit 0 samples (P$15/sample $0.00 Supplies/Safely Equipment 0 days @$100/day $0.00 Delivery Charges 0 shpmts @$20/shpmt $0,00 Computer Time 0 hours @$3/hour $0.00 Computer Time(formula) 0 hours @$0/hour $0.00 Telephone 0%of Labor $0.00 Subtotal Expenses $102,25 Subtotal Costs $4,925.25 Mark up @ 15.0% of Subcontractor Costs $568.20 Bonds @ 0.0% of Total Costs $0.00 Insurance @ 2.5% of Total Costs $137.34 Excise Tax Cc!)0.0% of Total Costs $0.00 TOTAL COST $5,630.79 GEI Invoice#3837 November 2,2018 Page 1 OnSite Environmental Inc. 14648 NE 95" Street, Redmond, WA 98052 . (425) 883-3881 INVOICE NUMBER: 1810-317 Dylan Galloway Galloway Environmental, Inc. 15600 NE Sth Street, Suite B1, 617 Bellevue, WA 98008 ATTENTION: ACCOUNTS PAYABLE Credit terms are net 30 days. Please include the invoice number with your remittance. Invoices are due in full by the due date, unless specifically contracted otherwise. OnSite Environmental, Inc. Federal Tax ID Number is 91-1550636. Past Due Accounts: 1.5%interest per month Date of Report: October 30, 2018 Samples Submitted: October 25, 2018 Project: 38023 Quantity Analysis Turnaround Unit Price Amount 4 NWTPH-Gx/BTEX 3 Days 105.00 $420.00 4 NWTPH-Dx 3 Days 105.00 420.00 4 Semivolatiles EPA 8270D/SIM 3 Days 576.00 2,304.00 3 Total Metals EPA 6010D/7471 B 3 Days 154.00 462.00 1 Total Metals EPA 200.8/7470A 3 Days 182.00 182.00 Total Due $3,788.00 OnSite Environmental, Inc. 14648 NE 95'"Street, Redmond,WA 98052 (425)883-3881 This report pertains to the samples analyzed in accordance with the chain of custody, and is intended only for the use of the individual or company to wham it is addressed. FA Sheet No.: Independent Cost Estimate r� 4 Project Name. S 228th St UPRR Underground Utilities Project No: 07 3022C Item No.: Date: 10/26/2018 Employ a sepcialty subcontractor to sample and test soil and water in the existing 72" CMP Description of Work that was suspected to be contaminated. Work by Subcontractor?: x (mark"x"dyes) Prime Contractor Sub-Contractor: LABOR STRAIGHTTIME OVERTIME DOLLAR LABOR DESCRIPTION HOURS WWR HOURS WWR AMOUNT Operator Labroer $ - Truck Driver $ Foreman 4 $ 68.08 $ 272.32 SUBTOTAL-LABOR. $ 272,32 LABOR OVERHEAD& PROFIT @ 29% $ 78.97 LABOR TOTAL $ 351.29 • HOURS HOURS ADJUSTED STANDBY DOLLAR EQUIPMENT AND ATTACHMENTS WORKING STANDBY RATE RATE AMOUNT Foreman Truck- F550 4 $ 57.60 $ 230.40 Excavator $ Dump Truck $ $ e SUBTOTAL-EQUIPMENT $ 230.40 EQUIPMENT OVERHEAD& PROFIT @ 21% $ 48.38 EQUIPMENT TOTAL $ 278.78 SUBCONTRACTOR SERVICE MATERIALS/SERVICE DESCRIPTION QUANTITY (JNIT =$ 5,630.79. Subcontractor-Galloway Environmental 1 LS SUBTOTAL-MATERIALS $ - MATERIALS OVERHEAD&PROFIT @ 21% $ - SUBCONTRACTOR TOTAL $ 5,630.79 Verification of Hours Worked: TOTAL. $ 6,260.87 .. .-. ......_.._._........._ 12% MARKUP(for prime when subcontract work) $ 675.69 Contractor's Representative(/v,rirrlud ndmel - SHEET TOTAL: $ 6,936.56 ----- ......... ConVaclor's Representative Signature Date `r P owners Representffiive(printed name) - o' uu,tvx° Prime Markup: <$25, Subcontractor: 0,000 Owngrs 6va Rgpresenta 5/onature Date 12% 000 10% O to rl Pay Estimate Entered: 7/°, >$100,000 t6 Date: ❑ oy: 1 of 1 P-13 (Rev. 7/12) Submittal 010 ANALYTICAL RESULTS FOR SEDIMENT AND WATER SAMPLES City of Kent King County, Washington S. 22 th St. Union Pacific railroad Underground Utilities Project Number: 07-3022 October 2018 Prepared By Road Construction Northwest, Inc. GALLOWAY ENVIRONMENTAL, INC 1,5600 NE 811 Street,S me B1,617 (425)894-8607 or(425)688-8852 BeBe,u WA 98008 �tli4Vy\44,n iIQf.rn,,nta!,_ rll November 1, 2018 Brian Menard Road Construction Northwest, Inc, PO Box 2228 Renton, WA 98056 E-mad ed to Brian@rcnw.cotn. G'eor(ge vcnw.coni, rind Mat0ricrimcora SUBJECT. ANALYTICAL RESULTS FOR SEDIMENT AND WATER SAMPLES COLLECTED AT THE S 228TH ST UNION PACIFIC RAILROAD UNDERGROUND UTILITIES PROJECT IN KENT, WASHINGTON, CONTRACT NO. 07-3022 Brian, George, and Matt: Galloway Environmental, Inc. (GEI) is pleased to provide you with this letter report presenting the analytical results of a recent sediment and water sampling at South 2281h Street Union Pacific Railroad Underground Utilities Project, located along South 22811 Street in Kent, Washington (the"Site") Background and Purpose As part of ongoing construction at the site, Road Construction Northwest, Inc. (RCNW) contracted GEI to collect and analyze samples of sediment and water from within an existing underground storm sewer to determine proper management and disposal of these materials. Sampling On October 25, 2018, GEI collected three discrete sediment samples and one composite water sample for laboratory analyses (see Site Photos—Attachment A) Each sample was collected directly from the the existing storm sewer using new dedicated sampling equipment. Upon retrieving the samples, they were placed into laboratory-supplied containers, pending submittal to OnSite Environmental Laboratory(OnSite). The containers utilized for each sediment sample consisted of one 8-ounce, wide mouth, glass jar and one pre-weighed, 40 milliliter(mL) volatile organic analysis (VOA) vial. The containers utilized for the water sample consisted of four 500 mL amber glass bottles (two with a hydrochloric acid [HCl] preservative, and two without), three 40 mL VOA vials with an HCI preservative, two 500 mL polyethylene bottles with a nitric acid preservative. Handling, storage and shipment Upon completion of sample collection, the sample containers were labeled and immediately placed into a cooler with ice to keep the samples at a temperature of approximately four degrees Celsius (°C), The samples were delivered to an OnSite under proper chain-of-custody procedures Eguipment Decontamination The samples were collected at each sample location using procedures designed to minimize the risk of cross contamination of the samples. Each sample was collected with dedicated disposable sampling equipment to minimize the possibility of cross contamination LABORATORY ANALYTICAL RESULTS Laboratory analytical results are summarized below and tabulated in Table 1 (Attachment B). The laboratory analytical report is provided in Attachment C. RCNW S 228'^St. Union Pacific Railroad Underground Utilities Sample Letter Report GEI Project#38023, November 1, 2018 Petroleum SIJ/7mary Laboratory analysis of all three sediment samples resulted in the detections of lube oil-range organics at concentrations ranging from 1,800 milligrams per kilogram (mg/kg) to 2,800 mg/kg. The detections exceeding the Washington State Model Toxics Control Act(MTCA) Method A Cleanup Level for lube oil-range organics of 2,000 mg/kg were associated with sample number KENT-2 (5,000 mg/kg) and KENT-3 (2,800 mg/kg). Laboratory analysis of the water sample resulted in the detection of lube oil-range organics at a concentration of 1,700 micrograms per liter(µg/L), exceeding the MTCA Method A Cleanup Level of 500 µg/L as groundwater. No other petroleum hydrocarbon was detected at concentrations equal to, or exceeding, their respective laboratory practical quantitation limits (PQLs). Petroleum constituents (benzene, toluene, ethylbenzene, and xylenes) were not detected at concentrations equal to, or exceeding, their respective laboratory PQLs in any of the samples analyzed, PolycLgfic Aromatic Hydrocarbon Summary Nineteen polycyclic aromatic hydrocarbons (PAHs) were detected in at least one of the sediment samples. Of these, three PAHs (i.e., benzo[b]fluoranthene, benzo[a]pyrene, and dibenz[a,h]anthracene) exceeded their MTCA Cleanup Levels. Benzo[b]fluoranthene was detected in sample numbers KENT-1 and KENT-3 at concentrations of 1.7 mg/kg and 1.8 mg/kg, respectively, exceeding its MTCA Method B Cleanup Level of 1.37 mg/kg. Benzo[a]pyrene was detected in all sediment samples at concentrations ranging from 0.77 mg/kg to 1.2 mg/kg, exceeding its MTCA Method A Cleanup Level of 0.10 mg/kg. Dibenz[a,h]a nth racene was detected in sample numbers KENT-1 and KENT-3 at concentrations of 020 mg/kg and 0.22 mg/kg, respectively, exceeding the MTCA Method A Cleanup Level of 0.137 mg/kg. Twelve PAHs were detected in the water sample. Of these, four PAHs (i.e., benzo[b]fluoranthene, benzo[a]pyrene, indeno[1,2,3-c,d]pyrene, and dibenz[a,h]anthracene) exceeded their MTCA Cleanup Levels as groundwater. Benzo[b]fluoranthene was detected at a concentration of 020 µg/L, exceeding its MTCA Method B Cleanup Level of 0.12 µg/L, but below the MTCA Cleanup Level for Surface Water of 0,296 µg/L Benzo[a]pyrene was detected at a concentration of 0.12 µg/L, exceeding its MTCA Method A Cleanup Level of 0.10 µg/L Indeno[1,2,3-c,d]pyrene was detected at a concentration of 0.13 µg/L, exceeding its MTCA Method B Cleanup Level of 0.12 µg/L, but below the MTCA Cleanup Level for Surface Water of 0,296 µg/L Dibenz[a,h]anthracene was detected at a concentration of 0.021 µg/L, exceeding its MTCA Method 8 Cleanup Level of 0.012 µg/L, but below the MTCA Cleanup Level for Surface Water of 0.0296 µg/L . It should be noted that there currently are no MTCA Method A Cleanup Levels established for indeno[1,2,3-c,d]pyrene or dibenz[a,h]anth racene All other PAHs were either non-detect or were detected, but at concentrations below their respective MTCA Cleanup Levels. lylefafs Summary Five metals were detected in at least one of the sediment samples. Arsenic was detected in sample number KENT-2 at a concentration of 20 mg/kg, equal to, but not exceeding, the MTCA Method A Cleanup Level of 20 mg/kg. Barium was detected in each of the three sediment samples at concentrations ranging from 98 mg/kg to 110 mg/kg, below its MTCA Method B Cleanup Level of 16,000 mg/kg. Cadmium was detected in sample number KENT-3 at a concentration of 0.95 mg/kg, below its MTCA Method A Cleanup Level of 2.0 mg/kg. Chromium was detected in each of the three sediment samples at concentrations ranging from 19 mg/kg to 33 mg/kg, below its MTCA Method A Cleanup Level of 2,000 ni (as chromium III). Lead was detected in each of the three sediment samples at concentrations ranging from 28 mg/kg to 43 mg/kg, below its MTCA Method A Cleanup Level of 250 mg/kg. Four metals were detected in the water sample. Arsenic was detected at a concentration of 18 µg/L, exceeding the MTCA Method A Cleanup Level of 5 µg/L as groundwater. Barium was detected at a concentration of 68 µg/L, below its MTCA Method B Cleanup Level of 3,200 µg/L as groundwater. Chromium was detected at a concentration of 31 µg/L, below its MTCA Method A Cleanup Level of 50 µg/L as groundwater. Lead was detected at a concentration of 15 µg/L, equal to, but not exceeding its MTCA Method A Cleanup Level of 15 µg/L as groundwater. i S 2281h St. Union Pacific Railroad Underground Utilities Sample Letter Report GEI Project#38023, November 1, 2C18 CONCLUSIONS Based on field observations and laboratory analyses, the sediment was confirmed to be contaminated with tube oil range petroleum hydrocarbons and one PAH. The water was confirmed to be contaminated with lube oil range petroleum hydrocarbons, three PAHs, and one metal_ As such, these materials should be disposed at a permitted Subtitle D landfill. It should be noted that the landfill may require toxicity characteristic leaching procedure (TCLP) testing prior to disposal at the landfill DISCLAIMER Professional judgments expressed in the report are based on the facts currently available within the limits of the existing data, scope of work, budget and schedule. To the extent that more definitive conclusions are desired by the client than are warranted by the currently available facts, it is specifically GEI's intent that the conclusions stated in our report to be intended as guidance and not necessarily a firm course of action except where explicitly stated as such. WE MAKE NO WARRANTIES, EXPRESS OR IMPLIED INCLUDING WITHOUT LIMITATION, WARRANTIES AS TO MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. In addition, the information provided is not to be construed as legal advice. This letter report is based upon the application of scientific principles and professional judgment to certain facts with resultant subjective interpretations. Further, there can be no assurance that any sampling or inspection techniques employed will necessarily disclose all contaminants at the site due, among other things and without limitation, to such factors as a practical and economic limitation on the number and location of samples, sample depth, lack of current definition of a particular material as hazardous, and the like. Further we can assume no liability for existing conditions on the site. Should you have any questions regarding this report or if you would like to discuss our findings, please contact me at the addresses listed at the top of this letter. Respectfully submitted, GALLOWAY ENVIRONMENTAL, INC. Dylan Galloway, REA ATTACHMENT A SITE PHOTOS BRG: 13°N (M) POS: 47°23'50"N, 122014120"W ±16.4ft ALT: 67ft m_.__........._._.........._.._ ..._._..__..._..__ ._ ...... ................. ....................._..............__....._ Description Photo of main intersection of 228' & 76", facing north Photo 1 ProjectNo. —.. ._.. — - — - - - -----...--...-- -..--...-- ..........._.. Site Name S. 2281h Street Union Pacific Railroad Underground Utilities Project Photo Date 38023 October 25, Client RCNW 2018 e BRG: 292'W (M) POS: 47°23'50"N,12201412"W±16.4ft ALT: 66ft r a, i a Collection point for sediment sample number KENT-1 and partial Description Photo 2 f KENT l m f i collecton point o water sample number � acing west Project No. -__.—. y _ Site Name S 228" Street Union Pacific Railroad Underground Utilities Project Photo Date 38023 _. ... .,_ ._ .. . . ... _.. __.. ... ""� "' ' October 25, Client RCNW 2018 BRG: 160°S (M) POS: 47°23'51"N,122°14'26"W t32.8ft ALT: 29ft � 1r „✓,�rru� V ) it irr s!,ipi i. Hl �i " 1 fi �N,✓ f ✓rc,✓mi /�Jdwu i� '. Y °" ✓ A r rd f i i win � � �i l i ✓ ��li1 �y m °hNl" 'k 1 rill r '' 4 � G fir/✓i JF'+N"l�l rNlf/l f�i 5� ' g✓ ���✓�/ rm a ��� i ���WQ�� ✓�nwr„'�y (fj�,�e i S l rt� ��i7 N I/F u / �'�'Yµ�;'r f��",�✓✓ J p✓a r ri ., vi �''r > `79�¢d1�,,9 $ a'iN iryn� rCr fiWly� r/b e P ✓ ✓ P✓k, � � n �� / � Bi,�" ✓/ n i,/ ............................ ............................ Description Collection point for sediment sample number KENT-2 and partial Photo 3 collection point of water sample number KENT-4, facing SE Project No. 38023 Photo Date Site Name S. 228 Street Union Pacific Railroad Underground Utilities Project ._ _....._._ _..._._. ........ -- October 25, Client RCNW 2018 .e ,a BRG:66°NE (M) POS: 47°23'50"N,122°14'20"W±16.4ft ALT:61ft wi „niY Collection point for sediment sample number KENT-3 and partial Description collection point of water sample number KENT-4, facing NE Photo 4 Project No. ......................... ........mm.m.m...m..............._.. Site Name S, 2281" Street Union Pacific Railroad Underground Utilities Project Photo Date 38023 -..""....-- — " October 25, Client RCNW 2018 ATTACHMENT B TABLES & FIGURES Laboratory Analytical Results S 228tn St.Union Pacific OR Underground Utilities Samples Collected on 10/25/18 GEI Project M36023 1.11Idebofim A 3d11 Mien LavN wow,HMm ICI iNdlx adtfdd Lm+wl(ydJLb Wabr Action Laval 1pv>-1 ''... Analvfe kE1 KENTB KENT-J rmNtal NENT-0 4a Grou MwaAr as 9udMce V4abr PMkM ado dratarp00. TPH-G Ine NO<fi 9 ND 15 NO<B B 2000 ND I1.0 fiurl NVE IPH Di95el NO<290 N l O9n ND<45n 9 rNlll py}x3Wg SGII WE _ To, OJ 1 6n0 S WO 2 dp0 2,ped 1,Tod SOfI NV Pdkialla. 1C.dnatlEuddf MOla1 e'Gom ..Ad& iene rvD�a Opo WG e4+k2'A N[Y mfh02m V,m3 NO<ta do 22,7 " Tel ND<O CB9 rvb ao.x5 ND<G,Oa& —"' To rvD<io tlwmo 1e go0 Ftrwlba�,ane NC9<u.mPo¢ Nu<u is°'�" [Y N:098 so ND" ]mo eeez Y'Ianax NO<0.130 No<m.JY] Ni g.. MD cIe "One MyE Fdl d LIIE Abaci Led M1}Enrban. .. ..... .__"... _ _ vtYT mm3i s.d NC<010 -iqp____"...... .." . ',13"..._....__ 9 klglwl of-dene 0021 ND<o029 NO IT 020 32 ND<D10 32 WE 1-McNVInedMnalana 0026 NO<0 029 N0 10 020 '. 34.5° NO<n 1n Snn NVF AWntl XIM race P05 �•� U..G41 •••• P.V40 WE.._ ._.. NO 14,10NVE MVE Acenaon[hane D za n 11 n nH9 4,g00' NO<0 10 Sol ads Fluorena D2n 00]5 0.094 321N1' ND<0ID FAO° 34% Pllnna 1M1 29 0]9 14 WE 011 fi00' WE ......."..Ar .....:w: ....�. Anln a p40 016 030 21000' NO<f110 dfMMl° 25825 ............_• ....sue .._.......r .�.......v..."._......m...., DLnbutellohthal de ND<23 Nq<]a NO a s N at ]6 1 B0J° WE ...........n ""_.....__ �.... �.._— . Fluora tnena 3e ]d 99 3201Y 021 tH0° aB4 .....................:............ W ann. 3 2 t 2 2.3 2 400° 023 _ � 4B0° 2 592. Banzofa antnracen- ______ 11 063 12 18Y 0071 n1Y in 99a Cnrvaene 1 s o 14 1 a T3Y 2g 6 BenzalhIDuorentnena 11 092 1,a 1.3Y 020 o1Y�W 021M Ode,,rk YVu�xllMMpnu 0.56 0.38 0.51 WE OQS] NVE WE ®®. ""6enzal'elpvrene 11 1.2 ITT] 1.1 010 �.." .......__ P.tm. mIm O.,O —_ Inden0l123c tllwrane 079 nn] na4 137' W � 0.13 01Y 02W m6 m........m..".....,...."_.,"...."._ " _..._.. 0 benz[a,nentnrscene U_20 013 0.22.. 0.137 0021 0012, 00206 [Snrdx N.i a Idnd 0.79 m5i 661 NOR TOW of MoMoh, 11(sen¢ ND<14 gill......._ adtn wl9�_ ]m._......__ ......mm"....... ��m.�.�.� K adgm 100 110 95 18.00Y fig 32l%I' rvvE Cadrmum NO<0.09 ND<11 0.95 20 ND<dd 50 an Chrenrum 19 31 33 2 311 @0 _24 y3 065 I ead q3 3e 2e visit) 15 -- 1s WE MamurY ND<o 33 ND e054 ND<03m 20 ._....._ryi ......_......_ .... ....,._...._....._, .-..,. ....w_. N6'<0..5m1 ____ 2 ti FYV'E."..._ Selnium NO<16 on<11 ND<15 dfMY Silver ND<t 4 Nq_ <?? Nn_ a 5 100' ND<11 130' 125925 MMd5 mg/kg Micreema perkilaeram ,PQJLTPH Total find per tiler TPH Total petroleum ny ProtRCTection NDr, us Envderided.1 at Pr-comimn geanry Resource Conservation and Recovery Act WE Net de leaccal acpnhas beene9ual tpnd excaeaing the leboramry Pracfaal ouanl9alion Limit(FOC) WE No action level value nee been eslabllnnad 0.13 Highlighted and solNO SOLOED on signifies exceede;a pladande l.of applic level as groundwatervet asg 013 Highlighted Met and NOT SOLOED concentration to ion CA Met Method A Action of a of action lave)a3 groundwater,but not surface water a MICA Method B Action Level for Chromium 1p MTDA Chromium AAcOon Level not esleblisbed b MTCq Melnptl A Action Level for CM1romium as CM1lomium III Peg.1 of 1 Y A I M I 0. I1,�'Yat�4 , Na SI'TNo r � , 4 TWA ZVY 1 I Ch 11, 'y r Gy R#d,, rs rl Yr .Y A I wJ.. r✓+ � r p "�R F.c.�, r �.:. ,p iG. n ➢ry'�'` � ! _��., by ' ti�. ,D �l 0-1,0 pQi Y 4 4�Y'n 19 a 1 l pN++yX su o zs000 c n Map provided by MyTopo.com F FIGURE 4— SITE LO A 2ION MAPS N Sediment& Water Sampling S 22811 Union Pacific Railroad Underground Utilities Project, Kent, WA Source: mytopo.com, October2018 GEI Project 38023 'rrd' T KENT-1 & pa tial KENT-3 & Partial ncrement Partial increment of KENT-4 increment of KENT-4 of KENT-4 e e s 0 Y P B e ¢ S B N B e Y AI a 9 � y yy V CpI I�{III�`Y CI�il III iY�l ii N y 0 , 6 f r Y �. +V 4 FIGURE 2—SITE PLAN MAP WITH APPROXIMATE SAMPLE LOCATIONS Sediment & Water Sampling & 228" Union Pacific Railroad Underground Utilities Project, Kent, WA q Source. GoogleEarth May 13, 2018 - r GEI Project 38023 ATTACHMENT C LABORATORY REPORT OnSite Envifile mental Inc. 14648 NE 95"Street, Redmond,WA 98052 • (425) 883-3881 October 30,2018 Dylan Galloway Gallaway Environmental, Inc. 15600 NE 8th Street, Suite B1, 617 Bellevue,WA 98008 Re: Analytical Data for Project 38023 Laboratory Reference No. 1810-317 Dear Dylan: Enclosed are the analytical results and associated quality control data for samples submitted on October 25,2018. The standard policy of OnSite Environmental, Inc. is to store your samples for 30 days from the date of receipt. If you require longer storage, please contact the laboratory. We appreciate the opportunity to be of service to you on this project. If you have any questions concerning the data, or need additional information,please feel free to call me. Sincerely, David Baumeister Project Manager Enclosures --. ..._._..._... ......._ ...._.._......._�. OnSite Environmental, Inc. 14648 NE 95 Street, Redmond,WA 98052(425)883-3881 This report pertains to the samples analyzed in accordance with the chain of custody, and is intended only for the use of the individual or company to whom it is addressed. 2 Date of Report:October 30, 2018 Samples Submitted:October 25, 2018 Laboratory Reference: 1810-317 Project:38023 Case Narrative Samples were collected on October 25, 2018 and received by the laboratory on October 25, 2018. They were maintained at the laboratory at a temperature of 2°C to 6°C. Please note that any and all soil sample results are reported on a dry-weight basis, unless otherwise noted below. General QA/QC issues associated with the analytical data enclosed in this laboratory report will be indicated with a reference to a comment or explanation on the Data Qualifier page. More complex and involved CA/QC issues will be discussed in detail below. ............. ........._ .. OnSite Environmental, Inc. 14648 NE 95r�Street, Redmond,WA 98052(425) 883-3881 This report pertains to the samples analyzed in accordance with the chain of custody, and is intended only for the use of the individual or company to whom it is addressed. 3 Date of Report:October 30, 2018 Samples Submitted:October 25, 2018 Laboratory Reference: 1810-317 Project:38023 GASOLINE RANGE ORGANICS/BTEX NWTPH-Gx/EPA 8021 B Matrix: Sail Units: mg/kg (ppm) Date Date Analyte Result POL Method Prepared Analvzed Flaqs Client ID: KENT-1 Laboratory ID: 10-317-01 Benzene ND 0.020 EPA 8021B 10-25-18 10-25-18 Toluene NO 0.069 EPA 8021B 10-25-18 10-25-18 Ethyl Benzene NO 0.069 EPA 8021 B 10-25-18 10-25-18 m,p-Xylene ND 0.069 EPA 8021B 10-25-18 10-25-18 c-Xylene ND 0.069 EPA 8021 B 10-25-18 10-25-18 Gasoline ND 6.9 NWTPH-Gx 10-25-18 10-25-18 Sur .- ........ ....-____ .............. ..._....._... ........._..... ...-...- Surrogate Percent Recovery Control Limits Fluorobenzene 89 57-129 Client ID: KENT-2 Laboratory ID: 10-317-02 Benzene ND 0.029 EPA 8021E 10-25-18 10-25-18 Toluene NO 0.15 EPA 8021B 10-25-18 10-25-18 Ethyl Benzene NO 0.15 EPA 8021 B 10-25-18 10-25-18 m,p-Xylene NO 0.15 EPA 80215 10-25-18 10-25-18 o-Xylene ND 0.15 EPA 8021B 10-25-18 10-25-18 Gasoline ND 15 NWTPH-Gx 10-25-18 10-25-18 ..--- .......................m....... .........___ " Surrogate: Percent Recovery Control Limits Fluorobenzene 57 57-129 Client ID: KENT-3 Laboratory ID: 10-317-03 Benzene ND 0.020 EPA 8021B 10-25-18 10-25-18 Toluene NO 0.088 EPA 80213 10-25-18 10-25-18 Ethyl Benzene ND 0.088 EPA 8021 B 10-25-18 10-25-18 m,p-Xylene ND 0.088 EPA 80218 10-25-18 10-25-18 o-Xylene ND 0.088 EPA 8021 B 10-25-18 10-25-18 Gasoline NO 8.8 NWTPH-Gx 10-25-18 10-25-18 Surrogate: Percent Recovery Control Limits Fluorobenzene 85 57-129 OnSite Environmental, Inc. 14648 NE 95 Street, Redmond,WA 98052(425)883-3881 This report pertains to the samples analyzed in accordance with the chain of custody, and is intended only for the use of the individual or company to whom it is addressed. 4 Date of Report:October 30, 2018 Samples Submitted: October 25, 2018 Laboratory Reference: 1810-317 Project:38023 GASOLINE RANGE ORGANICS/BTEX NWTPH-Gx/EPA 8021 B QUALITY CONTROL Matrix: Soil Units: ri (ppm) Date Date Analyte Result PQL Method Prepared Analyzed Flags METHOD BLANK Laboratory ID: MB1025S1 Benzene NO 0.020 EPA 8021 B 10-25-18 10-25-18 Toluene NO 0.050 EPA 8021 B 10-25-18 10-25-18 Ethyl Benzene NO 0.050 EPA 8021 B 10-25-18 10-25-18 m,p-Xylene ND 0.050 EPA 8021E 10-25-18 10-25-18 o-Xylene ND 0.050 EPA 8021 B 10-25-18 10-25-18 Gasoline NO 5.0 NWTPH-Gx 10-25-18 10-25-18 ._..........,.___ ....................._ _.. ............... . Surrogate: Percent Recovery Control Limits Fluorobenzene 73 57-129 Source Percent Recovery RPD Analyte Result Spike Level Result Recovery Limits RPD Limit Flags DUPLICATE Laboratory ID: 10-318-01 ORIG DUE Benzene NO NO NA NA NA NA NA 30 Toluene NO NO NA NA NA NA NA 30 Ethyl Benzene ND NO NA NA NA NA NA 30 m,p-Xylene ND NO NA NA NA NA NA 30 o-Xylene NO NO NA NA NA NA NA 30 Gasoline NO ND NA NA NA NA NA 30 _..._........_t-e-: ....._ -....... -- ...... ......._ _...._..._.____w _. .. .. Surrogate: Fluorobenzene 78 76 57-129 SPIKE BLANKS Laboratory ID: SB1025S1 ............ ._.._........ ..... ......... ....—_ SB SBD SB SRD SB SBD Benzene 0.810 0.775 1.00 1.00 81 78 69-111 4 10 Toluene 0.793 0.758 1.00 1.00 79 76 70-114 5 11 Ethyl Benzene 0.788 0.754 1.00 1.00 79 75 70-115 4 10 m,p-Xylene 0.766 0.732 1.00 1.00 77 73 72-115 5 10 o-Xvlene 0.783 0.746 1.00 1.00 78 75 71-115 5 11 Surrogate: Fluorobenzene 77 73 57-129 _._ ®.................... ............... ........_._ OnSite Environmental, Inc. 14648 NE 95` Street, Redmond,WA 98052 (425)883-3881 This report pertains to the samples analyzed in accordance with the chain of custody, and is intended only for the use of the individual or company to whom it is addressed. 5 Date of Report:October 30, 2018 Samples Submitted. October 25, 2018 Laboratory Reference: 1810-317 Project: 38023 GASOLINE RANGE ORGANICS/BTEX NWTPH-Gx/EPA 8021 B Matrix: Water Units: ug/L(pi Date Date Analyte Result POL Method Prepared Analyzed Flaos Client ID: KENT-4 Laboratory ID: 10-317-04 Benzene ND 1.0 EPA 8021B 10-25-18 10-25-18 Toluene ND 1.0 EPA 8021 B 10-25-18 10-25-18 Ethyl Benzene ND 1.0 EPA 8021 B 10-25-18 10-25-18 m,p-Xylene ND 1.0 EPA 8021E 10-25-18 10-25-18 o-Xylene ND 1.0 EPA 8021 B 10-25-18 10-25-18 Gasoline ND 100 NWTPH-Gx 10-25-18 10-25-18 Surrogate: Percent Recovery controi Limits Fluorobenzone 87 66-117 OnSite Environmental, Inc. 14648 NE 95' Street,Recinnond,WA 98052(425)883-3881 This report pertains to the samples analyzed in accordance with the chain of custody, and is intended only for the use of the individual or company to whom it is addressed. 6 Date of Report: October 30,2018 Samples Submitted, October 25, 2018 Laboratory Reference: 1810-317 Project:38023 GASOLINE RANGE ORGANICS/BTEX NWTPH-Gx/EPA 8021 B QUALITY CONTROL Matrix: Water Units: ug/L (ppb) Date Date Analyte Result POL Method Prepared Analyzed Flags METHOD BLANK Laboratory ID. M81025W2 Benzene NO 1.0 EPA 8021B 10-25-18 10-25-18 Toluene ND 1.0 EPA 8021E 10-25-18 10-25-18 Ethyl Benzene ND 1.0 EPA 8021 B 10-25-18 10-25-18 m,p-Xylene ND 1.0 EPA 8021 B 10-25-18 10-25-18 o-Xylene NO 1.0 EPA 80218 10-25-18 10-25-18 Gasoline NO 100 NWTPH-Gx 10-25-18 10-25-18 Surrogates Percent Recovery Control Limits Fluorobenzene 89 66-117 Source Percent Recovery RPD Analvte Result Spike Level Result Recovery Limits RPD Limit Flags DUPLICATE Laboratory ID: 10-317-04 ORIG DUP _.................................. _..... NO ND NA NA NA NA NA 30 Toluene NO NO NA NA NA NA NA 30 Ethyl Benzene ND NO NA NA NA NA NA 30 m,p-Xylene ND NO NA NA NA NA NA 30 o-Xylene ND NO NA NA NA NA NA 30 Gasoline ND NO NA NA NA NA NA 30 Surrogate: Fluorobenzene 87 86 66-117 SPIKE BLANKS Laboratory ID: SB1025W1 SB SBD SB SBD SB SBD Benzene 47.5 48.4 50.0 50.0 95 97 82-122 2 11 Toluene 45.2 46.1 50.0 50.0 90 92 83-123 2 12 Ethyl Benzene 44.3 44.9 50.0 50.0 89 90 83-123 1 12 m,p-Xylene 43.3 44.0 50.0 50.0 87 88 83-123 2 12 c-Xylene 43.9 44.6 50.0 50.0 88 89 83-123 2 11 ------------------------- Surrogate: Fluorobenzene 91 93 66-117 ..............------.__-_. ...........T..........._................. ---- OnSite Environmental, Inc. 14648 NE 95 Street, Redmond,WA 98052 (425) 883-3881 This report pertains to the samples analyzed in accordance with the chain of custody, and is intended only for the use of the individual or company to whom it is addressed. 7 Date of Report:October 30, 2018 Samples Submitted: October 25, 2018 Laboratory Reference: 1810-317 Project:38023 DIESEL AND HEAVY OIL RANGE ORGANICS NWTPH-Dx Matrix: Soil Units: mg/Kg (ppm) Date Date Analvte Result POL Method Prepared Analyzed Fleas Client ID: KENT-1 Laboratory ID: 10-317-01 Diesel Range Organics ND 290 NWTPH-Dx 10-26-18 10-26-18 U1 Lube Of Pence Organics 1800 350 NWTPH-Dx 10-26-18 10-26-18 Surrogate: Percent Recovery_Control Limits o-Terphenyl 88 50-150 Client ID: KENT-2 Laboratory ID: 10-317-02 Diesel Range Organics ND 790 NWTPH-Dx 10-26-18 10-26-18 U1 Lube Oil Rance Organics 5000 1100 NWTPH-Dx 10-26-18 10-26-18 Surrogate: Percent Recovery Control Limits o-Terphenyl --- 50-150 S Client ID: KENT-3 Laboratory ID: 10-317-03 Diesel Range Organics NO 450 NWTPH-Dx 10-26-18 10-26-18 U1 Lube Oil Rance Ornanigg 2800 760 NWTPH-Dx 10-26-18 10-26-18 ......�__� ..._ ..._..._ ......._._.. Surrogate. Percent Recovery Control Limits o-Terphenyl -- 50-150 S OnSite Environmental, Inc. 14648 NE 95' Street, Redmond,WA 98052(425)883-3881 This report pertains to the samples analyzed in accordance with the chain of custody, and is intended only for the use of the individual or company to whom it is addressed. 8 Date of Report:October 30, 2018 Samples Submitted:October 25, 2018 Laboratory Reference: 1810-317 Project:38023 DIESEL AND HEAVY OIL RANGE ORGANICS NWTPH-Dx QUALITY CONTROL Matrix: Soil Units: mg/i(ppm) Date Date Analvte Result POL Method Prepared Analvzed Flags METHOD BLANK Laboratory ID'. M8102652 Diesel Range Organics ND 25 NWTPH-Dx 10-26-18 10-26-18 Lube Oil Rance Orcamcs NO 50 NWTPH-Dx 10-26-18 10-26-18 Surrogate: Percent Recovery Control Limits o-Terphenyl 101 50-150 Source Percent Recovery RPD Analvte Result Spike Level Result Recovery Limits RPD Limit Flags DUPLICATE Laboratory ID: 10-320-01 ORIG DUP Diesel Range ND ND NA NA NA NA NA NA Lube Oil Rance ND NO NA NA NA NA NA NA ------------ Surrogate: o-Terphenyl 95 104 50-150 r OnSit ironmental, Inc. 146 4 8 NE 95' Str Redmond,WA 98052 (425) 683-3881 This r eport pertains to the samples analyzed in accordance with the chain of custody, and is intended only for the use of the individual or company to whom it is addressed. 9 Date of Report:October 30, 2018 Samples Submitted: October 25,2018 Laboratory Reference: 1810-317 Project:38023 DIESEL AND HEAVY OIL RANGE ORGANICS NWTPH-Dx Matrix: Water Units: mg/L (ppm) Date Date Analvte Result POL Method Prepared Analyzed Flags Client ID: KENT-4 Laboratory ID: 10-317-04 Diesel Range Organics ND 0,34 NWTPH-Dx 10-26-18 10-26-18 U1 Lube Oil Rance Organics 1.7 0.41 NWTPH-Dx 10-26-18 10-26-18 ............. .m............m _.__._....... _ Surrogate: Percent Recovery Control Limits c-Terphenyl 88 50-150 OnSite Environmental, Inc. 14648 NE 95 Street, Redmond,WA 98052 (425)883-3881 This report pertains to the samples analyzed in accordance with the chain of custody, and is intended only for the use of the individual or company to whom it is addressed. 10 Date of Report: October 30, 2018 Samples Submitted:October 25, 2018 Laboratory Reference: 1810-317 Project: 38023 DIESEL AND HEAVY OIL RANGE ORGANICS NWTPH-Dx QUALITY CONTROL Matrix: Water Units: ri (ppm) Date Date Analvte Result PQL Method Preoared Analyzed Flaas METHOD BLANK Laboratory ID: M131026W1 Diesel Range Organics NO 0.25 NWTPH-Dx 10-26-18 10-26-18 Lube Oil Rance Organics NO 0.40 NWTPH-Dx 1,0-26 18 10 26 18 Surrogate: Percent Recovery Control Limits o-Terphenyl 95 50-150 Source Percent Recovery RPD Analvte Result Soike Level Result Recovery Limits RPD Limit Flags DUPLICATE Laboratory ID: 10-317-04 ORIG DUP Diesel Range ND ND NA NA NA NA NA NA U1 Lube Oil Range Organics 1.72 1.25 NA NA NA NA 32 NA _. ...._..._ ....................._ .._ ___.-...._.._....--- Surrogate: o-Terphenyl 88 82 50-150 _..., ..... ®.... ...... ....... OnSlte Environmental, Inc 14648 NE 95' Street, Redmond,WA 98052(425) 883-3881 This report pertains to the samples analyzed in accordance with the chain of custody, and is intended only for the use of the individual or company to whom it is addressed. 11 Date of Report: October 30, 2018 Samples Submitted: October 25, 2018 Laboratory Reference: 1810-317 Project:38023 SEMIVOLATILE ORGANICS EPA 82701 page 1 of 2 Matrix,: Soil Units: mg/Kg Date Date Anal a Result POE Method Prepared Analyzed Flags Client ID: KENT-1 LabcratorLID: _- _10.317-01 . .. .-._.__. ........................_ n-Nitrosodimethylamtne ND 0.466.........._ EPA 8270D 10 29-18 10-29-18 Pyridine ND 4.6 EPA 8270D 10-29-18 10-29-18 Phenol ND 0.46 EPA 8270D 10-29-18 10-29-18 Aniline ND 2.3 EPA 8270D 10-29-18 10-29-18 bis(2-Chloroethyl)ether ND 0.46 EPA 8270D 10-29-18 10-29-18 2-Chlorophenol ND 0.46 EPA 8270D 10-29-18 10-29-18 1,3-Dichlorobenzene ND 0.46 EPA 8270D 10-29-18 10-29-18 1,4-Dichlorobenzene ND 0.46 EPA 8270D 10-29-18 10-29-18 Beri alcohol ND 2.3 EPA 8270D 10-29-18 10-29-18 1,2-Dichlorobenzene ND 0.46 EPA 8270D 10-29-18 10-29-18 2-Methylphenol (o-Cresol) ND 0.46 EPA 8270D 10-29-18 10-29-18 bis(2-Chloroisopropyl)ether ND 0.46 EPA 8270D 10-29-18 10-29-18 (3+4)-Methylphenol(m,p-Cresol) NO 0.46 EPA 8270D 10-29-18 10-29-18 n-Nitroso-di-n-propylamine ND 0,46 EPA 8270D 10-29-18 10-29-18 Hexachloroethane ND 0.46 EPA 8270D 10-29-18 10-29-18 Nitrobenzene ND 0.46 EPA 8270D 10-29-18 10-29-18 sophorone ND 0.46 EPA 8270D 10-29-18 10-29-18 2-Nitrophenol ND 0.46 EPA 8270D 10-29-18 10-29-18 2,4-Dimethylphencl ND 0.46 EPA 8270D 10-29-18 10-29-18 bis(2-Chloroethoxy)methane ND 0.46 EPA 8270D 10-29-18 10-29-18 2,44-Dichlorophenol ND 0.46 EPA 8270D 10-29-18 10-29-18 1,2,4-Trichlorobenzene ND 0.46 EPA 8270D 10-29-18 10-29-18 Naphthalene 0.038 0.018 EPA 8270D/SIM 10-29-18 10-29-18 4-Chlorcaniline ND 2.3 EPA 8270D 10-29-18 10-29-18 Hexachlorobutadiene ND 0.46 EPA 8270D 10-29-18 10-29-18 4-Chloro-3-methylphenol ND 0.46 EPA 8270D 10-29-18 10-29-18 2-Methyl naphthalene 0.021 0.018 EPA 82701 10-29-18 10-29-18 1-Methylnaphthalene 0.028 0.018 EPA 82701 10-29-18 10-29-18 Hexachlorocyclopentadiene ND 0.46 EPA 8270D 10-29-18 10-29-18 2,4,6-Trichlorophenol ND 0.46 EPA 8270D 10-29-18 10-29-18 2,3-Dichlcroani line ND 0.46 EPA 8270D 10-29-18 10-29-18 2,4,5-Trichlorophenol ND 0.46 EPA 8270D 10-29-18 10-29-18 2-Chloronaphthalene ND 0.46 EPA 8270D 10-29-18 10-29-18 2-Nitroaniline ND 0.46 EPA 8270D 10-29-18 10-29-18 1,4-Dinitrobenzene ND 0.46 EPA 8270D 10-29-18 10-29-18 Dimethylphthalate ND 0.46 EPA 8270D 10-29-18 10-29-18 1,3-Dinitrobenzene ND 0.46 EPA 8270D 10-29-18 10-29-18 2,6-Dinitrotoluene ND 0.46 EPA 8270D 10-29-18 10-29-18 1,2-Dinitrobenzene ND 0.46 EPA 8270D 10-29-18 10-29-18 Acenaphthylene 0.050 0.018 EPA 52701 10-29-18 10-29-18 3-Nitroaniline NO 0.46 EPA 8270D 10-29-18 10-29-18 ....m........ .�. .. ..................... OnSite Environmental, Inc. 14648 NE 95_ �xStreet, Redmond, WA 98052(425)883-3881 This report pertains to the samples analyzed in accordance with the chain of custody, and is intended only for the use of the individual or company to whom it is addressed. 12 Date of Report: October 30, 2018 Samples Submitted: October 25,2018 Laboratory Reference: 1810-317 Project:38023 SEMIVOLATILE ORGANICS EPA 8270D/SIM page 2 of 2 Date Date Analvte Result POL Method Prevared Anal ed Flags Client ID: KENT-1 Laboratory ID: 10-317-01 2,4-Dinitrophenol ND 2.3 EPA 8270D 10-29-18 10-29-18 Acenaphthene 0.28 0.018 EPA 8270D/SIM 10-29-18 10-29-18 4-Nitrophenol NO 0,46 EPA 8270D 10-29-18 10-29-18 2,4-Dinitrotoluene NO 0.46 EPA 8270D 10-29-18 10-29-18 Dibenzofuran NO 0.46 EPA 8270D 10-29-18 10-29-18 2,3,5,6-Tetrachlorophenol ND 0.46 EPA 8270D 10-29-18 10-29-18 2,3,4,6-Tetrachlorophenol NO 0.46 EPA 8270D 10-29-18 10-29-18 Diethylphthalate NO 2.3 EPA 8270C 10-29-18 10-29-18 4-Chlorophenyl-phenylether NO 0.46 EPA 8270D 10-29-18 10-29-18 4-Nitroaniline NO 0.46 EPA 8270D 10-29-18 10-29-18 Fluorene 0.20 0,018 EPA 8270D/SIM 10-29-18 10-29-18 4,6-Dinitro-2-methylphenol NO 2.3 EPA 8270D 10-29-18 10-29-18 n-Nitrosodiphenylamine NO 0.46 EPA 8270D 10-29-18 10-29-18 1,2-Diphenylhydrazine NO 0.46 EPA 8270D 10-29-18 10-29-18 4-Bromophenyl-phenylether NO 0.46 EPA 8270D 10-29-18 10-29-18 Hexachlorobenzene NO 0,46 EPA 8270D 10-29-18 10-29-18 Pentachlorophenol ND 2.3 EPA 82700 10-29-18 10-29-18 Phenanthrene 2.9 0.46 EPA 8270D 10-29-18 10-29-18 Anthracene 0.48 0.018 EPA 8270D/SIM 10-29-18 10-29-18 Carbazole NO 0.46 EPA 8270❑ 10-29-18 10-29-18 Di-n-butylphthalate NO 2.3 EPA 8270D 10-29-18 10-29-18 Flucranthene 3.8 0.46 EPA 8270D 10-29-18 10-29-18 Benzidine NO 4.6 EPA 8270D 10-29-18 10-29-18 Pyrene 3.2 0.46 EPA 6270D 10-29-18 10-29-18 Butylbenzylphthalate NO 2.3 EPA 8270D 10-29-18 10-29-18 bis-2-Ethylhexylad i pate NO 2.3 EPA 8270D 10-29-18 10-29-18 3,3'-Dichlorobenzidine NO 2.3 EPA 8270D 10-29-18 10-29-18 Benzo[a]anthracene 1.1 0.46 EPA 8270D 10-29-18 10-29-18 Chrysene 1.5 0.46 EPA 8270D 10-29-18 10-29-18 bis(2-Ethylhexyl)phthalate NO 2.3 EPA 8270D 10-29-18 10-29-18 Di-n-octylphthalate NO 2.3 EPA 8270D 10-29-18 10-29-18 Benzo[bjfluoranthene 1.7 0A6 EPA 8270D 10-29-18 10-29-18 Benzo(j,k)fluoranthene 0.56 0.46 EPA 8270D 10-29-18 10-29-18 Benzo[a]pyrene 1.2 0.46 EPA 8270C 10-29-18 10-29-18 Indeno[1,2,3-cdjpyrene 0.79 0.46 EPA 8270D 10-29-18 10-29-18 Dibenz[a,hjanthracene 0.20 0,018 EPA 8270D/SIM 10-29-18 10-29-18 Benzofa.h.idoervlene 0.78 0.46 EPA 8270D 10-29-18 10-29-18 Surrogate: Percent Recovery Control Limits 2-Fluorophenol 62 19- 103 Phenol-d6 65 36- 103 NitrObenzBne-d5 78 27- 105 2-Fluorobiphenyl 69 36- 102 2,4,6-Tribromophenol 75 33- 110 Terphenyl-d14 70 38- 108 Or ite Environmental, Inc 14648 NE 95 Street, Redmond,WA 98052425 883-3881 This report pertains to the samples analyzed in accordance with the chain of custody, ww...... and is intended only for the use of the individual or company to whom it is addressed. 13 Date of Report:October 30, 2018 Samples Submitted: October 25, 2018 Laboratory Reference: 1810-317 Project:38023 SEMIVOLATILE ORGANICS EPA 82701 page 1 of 2 Matrix: Soil Units: ni Date Date Analvte Result POL Method Preoared Anal red Flags Client ID: KENT-2 Laboratory ID: 10-317-02 n-Nitrosodimethylamine NO 0.72 EPA 8270D 10-29-18 10-29-18 Pyridine ND 7.2 EPA 8270D 10-29-18 10-29-18 Phenol NO 0.72 EPA 8270D 10-29-18 10-29-18 Aniline NO 3.6 EPA 8270D 10-29-18 10-29-18 bis(2-Chloroethyl)ether NO 0.72 EPA 8270D 10-29-18 10-29-18 2-Chlorophenol NO 0.72 EPA 8270D 10-29-18 10-29-18 1,3-Dichlorobenzene ND 0.72 EPA 8270D 10-29-18 10-29-18 1,4-Dichlorobenzene NO 0.72 EPA 8270D 10-29-18 10-29-18 Benzyl alcohol ND 3.6 EPA 8270❑ 10-29-18 10-29-18 1,2-Dichlorobenzene NO 0.72 EPA 8270D 10-29-18 10-29-18 2-Methylphenol (o-Cresol) NO 0.72 EPA 8270D 10-29-18 10-29-18 bis(2-Chloroisopropyl)ether NO 0.72 EPA 8270D 10-29-18 10-29-18 (3+4)-Methylphenol (m,p-Cresol) ND 0.72 EPA 8270D 10-29-18 10-29-18 n-Nitroso-di-n-propylamine ND 0.72 EPA 8270D 10-29-18 10-29-18 Hexachloroethane NO 0.72 EPA 8270D 10-29-18 10-29-18 Nitrobenzene ND 0.72 EPA 8270D 10-29-18 10-29-18 Isophorone NO 0.72 EPA 8270D 10-29-18 10-29-18 2-Nitrophenol NO 0.72 EPA 8270D 10-29-18 10-29-18 2,4-Dimethylphenol ND 0.72 EPA 8270D 10-29-18 10-29-18 bis(2-Chlcroethoxy)methane NO 0.72 EPA 8270D 10-29-18 10-29-18 2,4-Dichlorophenol NO 0.72 EPA 8270D 10-29-18 10-29-18 1,2,4-Trichlorobenzene NO 0.72 EPA 8270D 10-29-18 10-29-18 Naphthalene ND 0.029 EPA 8270D/SIM 10-29-18 10-29-18 4-Chloroaniline NO 3.6 EPA 8270D 10-29-18 10-29-18 Hexachlorobutadiene NO 0.72 EPA 8270D 10-29-18 10-29-18 4-Chloro-3-methylphenol NO 0.72 EPA 8270D 10-29-18 10-29-18 2-Methylnaphthalene NO 0.029 EPA 8270 D/SIM 10-29-18 10-29-18 1-Met hylnaphthalene ND 0.029 EPA 8270D/SIM 10-29-18 10-29-18 Hexachlorocyclopentadiene NO 0.72 EPA 8270D 10-29-18 10-29-18 2,4,6-Trichlorophenol ND 0.72 EPA 8270D 10-29-18 10-29-18 2,3-Dichloroaniline NO 0.72 EPA 8270D 10-29-18 10-29-18 2,4,5-Trichlorophenol NO 0.72 EPA 8270D 10-29-18 10-29-18 2-Chlorcnaphthalene NO 0.72 EPA 8270D 10-29-18 10-29-18 2-Nitroaniline NO 0.72 EPA 8270D 10-29-18 10-29-18 1,4-Dinitrobenzene ND 0.72 EPA 8270D 10-29-18 10-29-18 Dimethylphthalate NO 0.72 EPA 82701) 10-29-18 10-29-18 1,3-Dinitrobenzene NO 0.72 EPA 8270D 10-29-18 10-29-18 2,6-Dinitrotoluene NO 0,72 EPA 8270D 10-29-18 10-29-18 1,2-Dinitrobenzene NO 0.72 EPA 8270D 10-29-18 10-29-18 Acenaphthylene 0.041 0.029 EPA 8270D/SIM 10-29-18 10-29-18 3-Nitroaniline NO 0.72 EPA 8270D 10-29-18 10-29-18 ...m.m..m.m.m... OnSite Environmental, Inc. 14648 NE 95"S rt eet, Redmond, WA 98052 (425)883-3881 I This report pertains to the samples analyzed in accordance with the chain of custody, and is intended only for the use of the individual or company to whom it is addressed. 14 Date of Report:October 30, 2018 Samples Submitted:October 25, 2018 Laboratory Reference: 1810-317 Project:38023 SEMIVOLATILE ORGANICS EPA 82701 page 2 of 2 Date Date Analvte Result POL Method Preoared Analyzed Flags Client ID: KENT-2 Laboratory ID: 10-317-02 .........._.....__ ......_ ...._.............. ....................._....... 2,4-Dinitrophenol ND 3.6 EPA 8270D 10-29-18 10-29-18 Acenaphthene 0.32 0.029 EPA 8270D/SIM 10-29-18 10-29-18 4-Nitrophencl ND 0.72 EPA 8270D 10-29-18 10-29-18 2,4-Dinitrotoluene ND 0.72 EPA 8270D 10-29-18 10-29-18 Dibenzofuran ND 0.72 EPA 8270D 10-29-18 10-29-18 2,3,5,6-Tetrachlorophenol NO 0.72 EPA 8270D 10-29-18 10-29-18 2,3,4,6-Tetrachlorophenol ND 0.72 EPA 8270D 10-29-18 10-29-18 Diethylphthalate ND 3.6 EPA 8270D 10-29-18 10-29-18 4-Chlorephenyl-phenylether ND 0.72 EPA 8270D 10-29-18 10-29-18 4-Nitroaniline ND 0.72 EPA 8270D 10-29-18 10-29-18 Fluorene 0.075 0.029 EPA 8270D/SIM 10-29-18 10-29-18 4,6-Dinitro-2-methylphenol NO 3.6 EPA 8270❑ 10-29-18 10-29-18 n-Nitrosediphenylamine NO 0.72 EPA 8270D 10-29-18 10-29-18 1,2-Diphenylhydrazine ND 0.72 EPA 8270D 10-29-18 10-29-18 4-Bromophenyl-phenylether ND 0.72 EPA 8270D 10-29-18 10-29-18 Hexachlorobenzene ND 0.72 EPA 8270D 10-29-18 10-29-18 Pentachlorophenol ND 3.6 EPA 8270D 10-29-18 10-29-18 Phenanthrene 0.74 0.72 EPA 8270D 10-29-18 10-29-18 Anthracene 0.14 0.029 EPA 8270D/SIM 10-29-18 10-29-18 Carbazole ND 0.72 EPA 8270D 10-29-18 10-29-18 Di-n-butylphthalate ND 3.6 EPA 8270D 10-29-18 10-29-18 Fluoranthene 1.4 0.72 EPA 8270D 10-29-18 10-29-18 Benzidine ND 7.2 EPA 82701) 10-29-18 10-29-18 Pyrene 1.2 0.72 EPA 82701) 10-29-18 10-29-18 Butylbenzylphthalate NO 3.6 EPA 8270D 10-29-16 10-29-18 bis-2-Ethylhexyladipate NO 3.6 EPA 8270D 10-29-18 10-29-18 3,3'-Dichlorobenzidine ND 3.6 EPA 8270D 10-29-18 10-29-18 Benzo[ajanthracene 0.63 0.029 EPA 8270D/SIM 10-29-16 10-29-18 Chrysene 0.74 0.72 EPA 8270D 10-29-18 10-29-18 bis(2-Ethyl hexyl)phth alate ND 3.6 EPA 8270D 10-29-18 10-29-18 Di-n-octylphthalate NO 3.6 EPA 8270D 10-29-18 10-29-18 Benzo[b]fluoranthene 0.92 0.72 EPA 8270D 10-29-18 10-29-18 Benzo(j,k)fluoranthene 0.36 0.029 EPA 8270D/SIM 10-29-18 10-29-18 Benzc[a]pyrene 0.77 0.029 EPA 827001 10-29-18 10-29-18 Indeno[1,2,3-cd]pyrene 0.67 0.029 EPA 8270D/SIM 10-29-18 10-29-18 Dibenz[a,h]anthracene 0.13 0.029 EPA 8270D/SIM 10-29-18 10-29-18 Benzolo,inj1perylene 0.57 0.029 EPA8270D/SIM 10-29-18 10-29-18 Surrogate Percent Recovery Control Limits 2-Flucrophenol 37 19- 103 Phenol-d6 38 30- 103 Nitrobenzene-r1.5 47 27- 105 2-Fluorobiphenyl 44 36- 102 2,4,6-Tribromophenol 43 33- 110 Terphenyl-d14 43 38- 108 .........,,,, ..... ........ ----- .._._ _................ OnSite Environmental, Inc. 14648 NE 95' Street, Redmond, WA 98052(425)883-3881 This report pertains to the samples analyzed in accordance with the chain of custody, and is intended only for the use of the individual or company to whom it is addressed. 15 Date of Report: October 30, 2018 Samples Submitted. October 25, 2018 Laboratory Reference: 1810-317 Project:38023 SEMIVOLATILE ORGANICS EPA 8270D/SIM page 1 of 2 Matrix: Soil Units: mg/Kg Date Date Analvte Result POL Method Prepared Analyzed Flags Client ID: KENT-3 Laboratory ID: 10-317-03 n-Nitrosodimethylamine NO 0.51 EPA 8270D 10-29-16 10-29-18 Pyridine NO 5.1 EPA 8270D 10-29-18 10-29-18 Phenol NO 0.51 EPA 8270D 10-29-18 10-29-18 Aniline NO 2.5 EPA 8270D 10-29-18 10-29-18 bis(2-Chloroethyl)ether NO 0.51 EPA 8270D 10-29-18 10-29-18 2-Chlorophenol ND 0.51 EPA 82701) 10-29-18 10-29-18 1,3-Dichlorobenzene ND 0.51 EPA 8270D 10-29-18 10-29-18 1,4-Dichlorobenzene NO 0.51 EPA 8270D 10-29-18 10-29-18 Benzyl alcohol NO 2.5 EPA 8270D 10-29-18 10-29-18 1,2-Dichlorobenzene NO 0.51 EPA 8270D 10-29-18 10-29-18 2-Methylphenol (o-Cresol) NO 0.51 EPA 8270D 10-29-18 10-29-18 bis(2-Chloroisopropyl)ether ND 0.51 EPA 8270D 10-29-18 10-29-18 (3+4)-Methylphenol (m,p-Cresol) ND 0.51 EPA 8270D 10-29-18 10-29-18 n-Nitroso-di-n-propylamine NO 0,51 EPA 82700 10-29-18 10-29-18 Hexachloroethane NO 0.51 EPA 8270D 10-29-18 10-29-18 Nitrobenzene NO 0.51 EPA 8270D 10-29-18 10-29-18 sophorone NO 0.51 EPA 8270D 10-29-18 10-29-18 2-Nitrophenol ND 0.51 EPA 8270D 10-29-18 10-29-18 2,4-Dimethylphenol ND 0.51 EPA 8270D 10-29-18 10-29-18 bis(2-Chloroethoxy)methane NO 0.51 EPA 8270D 10-29-18 10-29-18 2,4-Dichlorophenol NO 0.51 EPA 8270D 10-29-18 10-29-18 1,2,4-Trichlorobenzene NO 0,51 EPA 8270D 10-29-18 10-29-18 Naphthalene 0.037 0.020 EPA 8270 D/SIM 10-29-18 10-29-18 4-Chloroaniline ND 2.5 EPA 8270D 10-29-18 10-29-18 Hexachlorobutadiene ND 0.51 EPA 8270D 10-29-18 10-29-18 4-Chloro-3-methylphenol ND 0.51 EPA 8270D 10-29-18 10-29-18 2-Methyl naphthalene NO 0.020 EPA 8270D/SIM 10-29-18 10-29-18 1-Methylnaphthalene NO 0.020 EPA 8270D/SIM 10-29-18 10-29-18 Hexachlorocyclopentadiene NO 0.51 EPA 8270D 10-29-18 10-29-18 2,4,6-Trichlorophenol NO 0.51 EPA 8270D 10-29-18 10-29-18 2,3-Dich lorcani line NO 0.51 EPA 8270D 10-29-18 10-29-18 2,4,5-Trichlorophenol ND 0.51 EPA 8270D 10-29-18 10-29-18 2-Chloronaphthalene NO 0.51 EPA 8270D 10-29-18 10-29-18 2-Nitroaniline NO 0.51 EPA 8270D 10-29-18 10-29-18 1,4-Dinitrobenzene NO 0.51 EPA 8270D 10-29-18 10-29-18 Dimethylphthalate NO 0.51 EPA 8270D 10-29-18 10-29-18 1,3-Dinitrobenzene NO 0.51 EPA 8270D 10-29-18 10-29-18 2,6-Dinitrotoluene ND 0.51 EPA 8270D 10-29-18 10-29-18 1,2-Dinitrobenzene NO 0.51 EPA 8270D 10-29-18 10-29-18 Acenaphthylene 0.043 0.020 EPA 8270D/SIM 10-29-18 10-29-18 3-Nitroaniline NO 0.51 EPA 8270D 10-29-18 10-29-18 OnSlte Environmental, Inc. 14648 NE 95' Street, Redmond,WA 98052(425) 883-3881 This report pertains to the samples analyzed in accordance with the chain of custody, and is intended only for the use of the individual or company to wham it is addressed, 16 Date of Report:October 30, 2018 Samples Submitted:October 25, 2018 Laboratory Reference: 1810-317 Project: 38023 SEMIVOLATILE ORGANICS EPA 8270D/SIM page 2of2 Date Date Analvte Result POL Method Preoared Analvzed Flags Client ID: KENT•3 Laboratory ID: 10-317-03 2,4-Dinitrophenol NO 2.- EPA 8270D 10-29-18 10-29-18 Acenaphthene 0.069 0.020 EPA 8270D/SIM 10-29-18 10-29-18 4-Nitrophenol NO 0.51 EPA 8270D 10-29-18 10-29-18 2.4-Dinitrotoluene ND 0.51 EPA 8270D 10-29-18 10-29-18 Dibenzofuran ND 0.51 EPA 8270D 10-29-18 10-29-18 2,3,5,6-Tetrachloraphenol ND 0.51 EPA 8270D 10-29-18 10-29-18 2,3,4.6-Tetrachloraphenol NO 0.51 EPA 8270D 10-29-18 10-29-18 Diethylphthalate NO 2.5 EPA B270D 10-29-18 10-29-18 4-Chlorophenyl-phenylether NO 0.51 EPA 8270D 10-29-18 10-29-18 4-Nitroaniline ND 0,51 EPA 8270D 10-29-18 10-29-18 Fluorene 0.094 0.020 EPA 8270D/SIM 10-29-18 10-29-18 4,6-Dinitro-2-methylphenol NO 2.5 EPA 8270D 10-29-18 10-29-18 n-Nitroscdiphenylamine ND 0.51 EPA 8270D 10-29-18 10-29-18 1,2-Dipheny1hydrazine ND 0.51 EPA 8270D 10-29-15 10-29-18 4-Bromophenyl-phenylether NO 0.51 EPA 8270D 10-29-18 10-29-18 Hexachlorobenzene NO 0.51 EPA 8270D 10-29-18 10-29-18 Pentachlorophenol NO 2.5 EPA 8270D 10-29-18 10-29-18 Phenanthrene 1.4 0.51 EPA 8270D 10-29-18 10-29-18 Anthracene 0.30 0.020 EPA 8270D/SIM 10-29-18 10-29-18 Carbazole NO 0.51 EPA 8270D 10-29-18 10-29-18 Di-n-butylphthalate NO 2.5 EPA 8270D 10-29-18 10-29-18 Flucranthene 2.9 0.51 EPA 8270D 10-29-18 10-29-18 Benzidine ND 5.1 EPA 8270D 10-29-18 10-29-18 Pyrene 2.3 0.51 EPA 8270D 10-29-18 10-29-18 Butylbenzylphthalate NO 2.5 EPA B270D 10-29-18 10-29-18 bis-2-Ethyl hexyladi pate NO 2.5 EPA 8270D 10-29-18 10-29-18 3,3'-Dichlorober idine NO 2.5 EPA 8270D 10-29-18 10-29-18 Benzo[a]anthracene 1.2 0,51 EPA 8270D 10-29-18 10-29-18 Chrysene 1.4 0.51 EPA 8270D 10-29-18 10-29-18 bis(2-Ethylhexyl)phthalate ND 2.5 EPA 8270❑ 10-29-18 10-29-18 Di-n-octylphthalate NO 2.5 EPA 8270D 10-29-18 10-29-18 Benzo[b]fluoranthene 1.8 0.51 EPA 8270D 10-29-18 10-29-18 Benzo(j,k)fluoranthene 0.51 0.51 EPA 8270D 10-29-18 10-29-18 Benzo[a]pyrene 1.1 0.51 EPA 8270D 10-29-18 10-29-18 Indeno[1,213-cd]pyrene 0.84 0.51 EPA 8270D 10-29-18 10-29-18 Dibenz[a,h]anthracene 0.22 0.020 EPA 8270D/SIM 10-29-18 10-29-18 Benzoln,th,iliderylerre 0.81 0.51 EPA 8270D 10-29.18 10-29-18 Surrogate: Percent Recovery Control Limits 2-Fluorophenol 58 19- 103 Phenol-d6 61 30- 103 Nitrobenzene-d.5 70 27- 105 2-Fluorobiphenyl 62 36- 102 2,4,6-Tabromophenol 64 33- 110 Terphenyl-d14 64 38- 108 ....._...... .. ...... ._.. .... _-- ........_� OnSite Environmental, Inc. 14648 NE 95 th Street, Redmond,WA 98052(425)883-3881 This report pertains to the samples analyzed In accordance with the chain of custody, and is intended only for the use of the individual or company to whom it is addressed. 17 Date of Report: October 30, 2018 Samples Submitted: October 25, 2018 Laboratory Reference: 1810-317 Project: 38023 SEMIVOLATILE ORGANICS EPA 8270DISIM METHOD BLANK QUALITY CONTROL page 1 of 2 Matrix: Sail Units: mg/Kg Date Date Analyte Result PQL Method Prepared Analyzed Flaqs Laboratory ID: MB102951 n-Nitrosodimethylamine NET 0.033 EPA 8270D 10-29-18 10-29-18. Pyridine ND 0.33 EPA 8270D 10-29-18 10-29-18 Phenol ND 0.033 EPA 8270D 10-29-18 10-29-18 Aniline ND 0.17 EPA 8270D 10-29-18 10-29-18 bis(2-Chloroethyl)ether ND 0.033 EPA 8270D 10-29-18 10-29-18 2-Chlorophenol ND 0.033 EPA 8270D 10-29-18 10-29-18 1,3-Dichlorobenzene NO 0.033 EPA 8270D 10-29-18 10-29-18 1,4-Dichlorobenzene ND 0.033 EPA 8270D 10-29-18 10-29-18 Benzyl alcohol ND 0.17 EPA 8270D 10-29-18 10-29-18 1,2-Dichlorobenzene ND 0.033 EPA 8270D 10-29-18 10-29-18 2-Methylphenol (o-Cresol) ND 0,033 EPA 8270D 10-29-18 10-29-18 bis(2-Chloroisopropyl)ether ND 0.033 EPA 8270D 10-29-18 10-29-18 (3+4)-Methylphenol(m,p-Cresol) ND 0.033 EPA 8270D 10-29-18 10-29-18 n-Nitroso-di-n-propylamine ND 0.033 EPA 8270D 10-29-18 10-29-18 Hexachlorcethane ND 0.033 EPA 8270D 10-29-18 10-29-18 Nitrobenzene ND 0.033 EPA 8270D 10-29-18 10-29-18 Isophorone ND 0.033 EPA 8270D 10-29-18 10-29-18 2-Nitrophenol ND 0.033 EPA 8270D 10-29-18 10-29-18 2,4-Dimethylphenol ND 0.033 EPA 8270D 10-29-18 10-29-18 bis(2-Chloroethoxy)methane ND 0,033 EPA 8270D 10-29-18 10-29-18 2,4-Dichlorophenol ND 0.033 EPA 8270D 10-29-18 10-29-18 1,2,4-Trcchlorobenzene ND 0.033 EPA 8270D 10-29-18 10-29-18 Naphthalene NO 0.0067 EPA 8270D/SIM 10-29-18 10-29-18 4-Chloroaniline ND 0.17 EPA 8270D 10-29-18 10-29-18 Hexachlorobutadiene ND 0.033 EPA 8270D 10-29-18 10-29-18 4-Chloro-3-methylphenol ND 0.033 EPA 8270D 10-29-18 10-29-18 2-Methylnaphthalene ND 0.0067 EPA 8270 D/SIM 10-29-18 10-29-18 1-Methylnaphthalene ND 0,0067 EPA8270D/SIM 10-29-18 10-29-18 HexachIorocyc lope n led iene ND 0,033 EPA 8270D 10-29-18 10-29-18 2,4,6-Trich IorophenoI ND 0.033 EPA 8270D 10-29-18 10-29-18 2,3-Dichloroaniline ND 0,033 EPA 8270D 10-29-18 10-29-18 2,4,5-Trichlorophenol ND 0.033 EPA 8270D 10-29-18 10-29-18 2-Chloronaphthalene ND 0.033 EPA 8270D 10-29-18 10-29-18 2-Nitroaniline ND 0.033 EPA 8270D 10-29-18 10-29-18 1,4-Dinitrobenzene ND 0.033 EPA 8270D 10-29-18 10-29-18 ❑imethylphthalate ND 0.033 EPA 8270D 10-29-16 10-29-18 1,3-Dinitrobenzene ND 0,033 EPA 8270❑ 10-29-18 10-29-18 2,6-Dinitrotoluene ND 0.033 EPA 8270D 10-29-18 10-29-18 1,2-Dinitrobenzene NO 0.033 EPA 8270D 10-29-18 10-29-18 Acenaphthylene ND 0.0067 EPA 8270D/SIM 10-29-18 10-29-18 3-Nitroaniline ND 0.033 EPA 8270D 10-29-18 10-29-18 OnSite Environmental, Inc. 14648 NE 95' Street, Redmond,WA 98052(425)883-3881 This report pertains to the samples analyzed in accordance with the chain of custody, and is intended only for the use of the individual or company to whom it is addressed. 18 Date of Report:October 30, 2018 Samples Submitted: October 25,2018 Laboratory Reference: 1810-317 Project:38023 SEMIVOLATILE ORGANICS EPA 8270D/SIM METHOD BLANK QUALITY CONTROL page 2 of 2 Date Date Art Result POL Method Prepared Analvzed Flaas Laboratory ID: MB102951 2,4-Dinitrophenol ND 0.17 EPA 8270D 10-29-18 10-29-18 Acenaphthene ND 0.0067 EPA 8270D/SIM 10-29-18 10-29-18 4-Nitrophenol ND 0.033 EPA 8270D 10-29-18 10-29-18 2,4-Dinitrotoluene NO 0.033 EPA 8270D 10-29-18 10-29-18 Dibenzofuran NO 0.033 EPA 8270D 10-29-18 10-29-18 2,3,5,6-Tetrachlorophenol NO 0.033 EPA 8270D 10-29-18 10-29-18 2,3,4,6-Tetrachlorophenol ND 0,033 EPA 8270❑ 10-29-18 10-29-18 Diethylphthalate ND 0.17 EPA 827DD 10-29-18 10-29-18 4-Chlorophenyl-phenylether ND 0.033 EPA 827DD 10-29-18 10-29-18 4-Nitroaniline ND 0,033 EPA 8270D 10-29-18 10-29-18 Fluorene ND 0.0067 EPA 8270D/SIM 10-29-18 10-29-18 4,6-Dinitro-2-methylphenol ND 0.17 EPA 8270D 10-29-18 10-29-18 n-Nitrosodiphenylamine ND 0,033 EPA 8270D 10-29-18 10-29-18 1,2-Diphenylhydrazine ND 0.033 EPA 8270D 10-29-18 10-29-18 4-Bromophenyl-phenylether ND 0,033 EPA 8270D 10-29-18 10-29-18 Hexachlorobenzene ND 0.033 EPA 8270D 10-29-16 10-29-18 Pentachlorophencl ND 0.17 EPA 8270D 10-29-18 10-29-18 Phenanthrene ND 0.0067 EPA 8270D/SIM 10-29-18 10-29-18 Anthracene ND 0.0067 EPA 8270D/SIM 10-29-18 10-29-18 Carbazole ND 0.033 EPA 8270D 10-29-18 10-29-18 Di-n-butylphthalate ND 0.17 EPA 827DD 10-29-18 10-29-18 Flucranthene NO 0.0067 EPA 8270D/SIM 10-29-18 10-29-18 Benzidine NO 0.33 EPA 8270D 10-29-18 10-29-18 Pyrene NO 0.0067 EPA 8270D/SIM 10-29-18 10-29-18 Butylbenzylphthalate ND 0.17 EPA 8270D 10-29-18 10-29-18 bis-2-Ethylhexyladipate ND 0.17 EPA 8270D 10-29-18 10-29-18 3,3'-Dichlorobenzidine ND 0.17 EPA 8270D 10-29-18 10-29-18 Benzo[alanthracene ND 0.0067 EPA 8270D/SIM 10-29-18 10-29-18 Chrysene ND 0,0067 EPA 8270D/SIM 10-29-18 10-29-18 bis(2-Ethylhexyl)phthalate ND 0.17 EPA 8270D 10-29-18 10-29-18 Di-n-octylphthalate ND 0.17 EPA 8270D 10-29-18 10-29-18 Benzo[blfluoranthene ND 0,0067 EPA 8270D/SIM 10-29-18 10-29-18 Benzo(j,k)fluoranthene ND 0.0067 EPA 8270D/SIM 10-29-18 10-29-18 Benzo[alpyrene ND 0.0067 EPA 8270D/SIM 10-29-18 10-29-18 Indeno[1,2,3-cd]pyrene ND 0.0067 EPA 6270D/SIM 10-29-18 10-29-18 ❑ibenz[a,h]anthracene ND 0.0067 EPA 6270D/SIM 10-29-18 10-29-18 Benzo[o.h,ilperylene ND 0.0067 EPA 8270D/SIM 10-29 18 10-29-18 Surrogate: Percent Recovery Control Limits 2-Fluorophenol 64 19- 103 Phenol-d6 67 30- 103 Nitrobenzene-d5 76 27- 105 2-Fluorobiphenyl 67 36- 102 2,4,6-Tribromophenol 78 33- 110 Terphenyl-d 14 69 38- 108 OnSite Environmental, Inc. 14648 NE 95th Street, Redmond,WA 98052(425) 883-3881 This report pertains to the samples analyzed in accordance with the chain of custody, and is intended only for the use of the individual or company to whom it is addressed. 19 Date of Report:October 30, 2018 Samples Submitted:October 25, 2018 Laboratory Reference: 1810-317 Project:38023 SEMIVOLATILE ORGANICS EPA 8270D/SIM SB,/SBD QUALITY CONTROL Matrix: Soil Units: mg/Kg Percent Recovery RPD Analyte Result Spike Level Recovery Limits RPD Limit Flags SPIKE BLANKS Laboratory ID: SBI029SI SB SBD SB SBD SB SBD ...............� --- -- — .._..._...... ._. ... ...... _------- ._,..�.._......,.. Phenol 0.876 0.982 1.33 1.33 66 74 45-94 11 29 2-Chlorophenol 0.895 1.01 1.33 1.33 67 76 46-94 12 33 1 4-Dichlorobenzene 0.452 0.509 0.667 0.667 68 76 42-91 12 37 n-Nitroso-di-n-propylamine 0.530 0.603 0.667 0.667 79 90 45- 100 13 26 1,2,4-Trichlorobenzene 0.513 0.559 0.667 0.667 77 84 45- 100 9 32 4-Chloro-3-methylphenol 1.04 1.14 1 33 1.33 78 86 55-97 9 21 Acenaphthene 0.448 0.492 0.667 0.667 67 74 48-91 9 21 4-Nitrophenol 1.24 1.36 1.33 1.33 93 102 53- 102 9 20 2,4-Dinitrotoluene 0.449 0.490 0.667 0.667 67 73 47-96 9 19 Pentachlorophenol 1.35 1.54 1.33 1.33 102 116 35- 125 13 26 Pyrene 0.464 0.511 0,667 0.667 70 77 55- 110 10 17 Surrogate: ......................._._.� 2-Fluorophenol 61 65 19- 103 Phenol-d6 62 66 30- 103 Nitrobenzene-d5 71 79 27- 105 2-Fuorobiphenyl 63 67 36- 102 2,4,6-Tribromophenol 71 80 33- 110 Terphenyl-04 65 69 38- 108 OnSite Environmental, Inc. 14648 NE 95 Street, Redmond,WA 98052(425)883-3881 This report pertains to the samples analyzed in accordance with the chain of custody, and is intended only for the use of the individual or company to whom it is addressed. 20 Date of Report:October 30, 2018 Samples Submitted:October 25, 2018 Laboratory Reference: 1810-317 Project:38023 SEMIVOLATILE ORGANICS EPA 8270DISIM page 1 of 2 Matrix: Water Units: ug/L Date Date Analvte Result POL Method Prepared Analyzed Flaas Client ID: KENT-4 Laboratory ID: 10-317-04 ---Nltr.c _.____...�.... ....._______._. ............................_,.- n-Nitrosodimethylamine ND 1.0 EPA 8270D 10-29-18 10-29-18 Pyridine NO 1.0 EPA 8270D 10-29-18 10-29-18 Phenol NO 1.0 EPA 8270D 10-29-18 10-29-18 Aniline ND 5.2 EPA 8270D 10-29-18 10-29-18 bis(2-Chloroethyl)ether ND 1.0 EPA 8270D 10-29-18 10-29-18 2-Chlorophenol ND 1.0 EPA 827DD 10-29-18 10-29-18 1,3-Dichlorobenzene NO 1.0 EPA 8270D 10-29-18 10-29-18 1,4-Dichlorobenzene NO 1.0 EPA 8270D 10-29-18 10-29-18 Benzyl alcohol ND 1.0 EPA 8270D 10-29-18 10-29-18 1,2-Dichlorobenzene ND 1.0 EPA 8270D 10-29-18 10-29-18 2-Methylphenol (o-Cresol) ND 1.0 EPA 8270D 10-29-18 10-29-18 bts(2-Chlorcisopropyl)ether ND 1.0 EPA 8270D 10-29-18 10-29-18 (3+4)-Methylphenol(m,p-Cresop ND 1.0 EPA 8270D 10-29-18 10-29-18 n-Nitroso-di-n-propylamine NO 1.0 EPA 8270D 10-29-18 10-29-18 Hexachloroethane NO 1.0 EPA 8270D 10-29-18 10-29-18 Nitrobenzene NO 1.0 EPA 8270❑ 10-29-18 10-29-18 Isophorone NO 1.0 EPA 8270D 10-29-18 10-29-18 2-Nitrophenol ND 1.0 EPA 8270D 10-29-18 10-29-18 2,4-Dimethylphenol ND 1.0 EPA 8270D 10-29-18 10-29-18 bis(2-Chloroethoxy)methane ND 1_.0 EPA 8270D 10-29-18 10-29-18 2,4-Dichlorophenol NO 1.0 EPA 8270D 10-29-18 10-29-18 1,2,4-Trichlorobenzene ND 1.0 EPA 8270D 10-29-18 10-29-18 Naphthalene ND 0.10 EPA 8270D/SIM 10-29-18 10-29-18 4-Chloroaniline ND 1.0 EPA 8270D 10-29-18 10-29-18 Hexachlorobutadiene ND 1.0 EPA 8270D 10-29-18 10-29-18 4-Chlorc-3-methylphenol ND 1.0 EPA 8270D 10-29-18 10-29-18 2-Methyl naphthalene NO 0.10 EPA 8270D/SIM 10-29-18 10-29-18 1-Methylnaphthalene NO 0.10 EPA 8270D/SIM 10-29-18 10-29-18 Hexachlcrocycicpentad!one ND 1.0 EPA 8270D 10-29-18 10-29-18 2,4,6-Trichlorophenol ND 1.0 EPA 8270❑ 10-29-18 10-29-18 2,3-Dichloroaniline NO 1.0 EPA 8270D 10-29-18 10-29-1B 2,4,5-Trichlorophenol NO 1.0 EPA 8270D 10-29-18 10-29-18 2-Chloronaphthalene NO 1.0 EPA 8270D 10-29-18 10-29-18 2-Nitroaniline ND 1.0 EPA 8270D 10-29-18 10-29-18 1,4-Dinitrobenzene ND 1.0 EPA 8270D 10-29-18 10-29-18 Dimethylphthalate ND 1.0 EPA 8270D 10-29-18 10-29-18 1,3-Dinitrobenzene ND 1.a EPA 8270D 10-29-18 10-29-18 2,6-Dinitrotoluene NO 1,0 EPA 8270D 10-29-18 10-29-18 1,2-Dinitrobenzene NO 1.0 EPA 8270D 10-29-18 10-29-18 Acenaphthylene NO 0.10 EPA 8270D/SIM 10-29-18 10-29-18 3-Nitroaniline ND 1.0 EPA 8270D 10-29-18 10-29-18 o OnSite Environmental, Inc. 14648 NE 95' Street, Redmond,WA 98052(425)883-3881 mmm This report pertains to the samples analyzed in accordance with the chain of custody, and is intended only for the use of the individual or company to wham it is addressed. 21 Date of Report:October 30, 2018 Samples Submitted: October 25,2018 Laboratory Reference: 1810-317 Project:38023 SEMIVOLATILE ORGANICS EPA 6270D/SIM page 2 of 2 Date Date Analvte Result I Method Preoared Analvzed Flaas Client ID: KENT-4 Laboratory ID; 10-317-04 2,4-Dinitrophenol NO 5.2 EPA 8270D 1m0-2918...............10-29-18 Acenaphthene ND 0,10 EPA 8270D/SIM 10-29-18 10-29-18 4-Nitrophenol NO 5.2 EPA 8270D 10-29-18 10-29-18 2,4-Dinitrotoluene ND 1.0 EPA 8270D 10-29-18 10-29-18 Dibenzofuran ND 1.0 EPA 8270❑ 10-29-18 10-29-18 2,3,5,6-Tetrachlorophenol ND 1.0 EPA 8270D 10-29-18 10-29-18 2,3,4,6-Tetrachlcrophenol NO 1.0 EPA 8270D 10-29-18 10-29-18 Diethylphthalate ND 1.0 EPA 8270D 10-29-18 10-29-18 4-Chlorophenyl-phenylether ND 1.0 EPA 8270D 10-29-18 10-29-18 4-Nitroaniline ND 1.0 EPA 8270D 10-29-18 10-29-18 Fluorene NO 0.10 EPA 8270D/SIM 10-29-18 10-29-18 4,6-Dinitro-2-methylphenol ND 5.2 EPA 8270D 10-29-18 10-29-18 n-Nitrosodiphenylamine ND 1.0 EPA 8270D 10-29-18 10-29-18 1,2-Diphenylhydrazine NO 1.3 EPA 8270D 10-29-18 10-29-18 U1 4-Bromophenyl-phenylether ND 1.0 EPA 8270D 10-29-18 10-29-18 Hexachlorobenzene ND 1.0 EPA 8270D 10-29-18 10-29-18 Pentachlorophencl ND 5.2 EPA 8270D 10-29-18 10-29-18 Phenanthrene 0.11 0.10 EPA 8270D/SIM 10-29-18 10-29-18 Anthracene ND 0.10 EPA 8270D/SIM 10-29-18 10-29-18 Carbazole ND 1.0 EPA 8270D 10-29-18 10-29-18 Di-n-butylphthalate 7.6 5.2 EPA 8270D 10-29-18 10-29-18 Fluoranthene 0.21 0.10 EPA 8270D/SIM 10-29-18 10-29-18 Benzidine ND 5.2 EPA 82700 10-29-18 10-29-18 Pyrene 0.23 0.10 EPA 8270 D/SIM 10-29-18 10-29-18 Butylbenzylphthalate ND 1.0 EPA 8270D 10-29-18 10-29-18 bis-2-Ethyl hexylad ipate ND 5.2 EPA 8270D 10-29-18 10-29-18 3,3'-Dichlorobenzidine ND 1.0 EPA 8270D 10-29-18 10-29-18 Benzo[a]anth race ne 0.072 0.010 EPA 8270D/SIM 10-29-18 10-29-18 Chrysene 0.14 0.010 EPA 8270D/SIM 10-29-18 10-29-18 bis(2-Ethylhexyl)phthalate ND 5.2 EPA 8270D 10-29-18 10-29-18 Di-n-octylphthalate ND 1.0 EPA 8270D 10-29-18 10-29-18 Benzo[b]fluoranthene 0.20 0.010 EPA 8270 D/SIM 10-29-18 10-29-18 Benzc(j,k)fIuoranthene 0.067 0.010 EPA 8270D/SIM 10-29-18 10-29-18 Benzo[a]pyrene 0.12 0.010 EPA 8270D/SIM 10-29-18 10-29-18 Indeno[1,2,3-cd]pyrene 0.13 0.010 EPA 8270D/SIM 10-29-18 10-29-18 Dibenz[a,h]anthracene 0.021 0.010 EPA 8270D/SIM 10-29-1B 10-29-18 Benzofa.h.iloervlene 0.12 0.010 EPA 8270D/SIM 10-29-18 10-29-18 _ Surrogate: Percent Recovery Control Limits 2-Fluorophenol 12 12-80 Phenol-d6 15 10-82 Nitrobenzene-d5 51 30- 103 2-Fluorobiphenyl 54 33- 103 2,4,6-Tribromophenol 32 20- 121 Terphenyl-dl4 56 32- 113 t...._. OnSite Environmental, Inc. 14648 NE 95 ' Street, Redmond,WA 98052 (425) 883-3881 This report pertains to the samples analyzed in accordance with the chain of custody, and is intended only for the use of the individual or company to whom it is addressed, 22 Date of Report:October 30, 2018 Samples Submitted:October 25, 2018 Laboratory Reference: 1810-317 Project: 38023 SEMIVOLATILE ORGANICS EPA 8270D/SIM METHOD BLANK QUALITY CONTROL page 1 of 2 Matrix: Water Units: ug/L Date Date Analyte Result POL Method Prepared Analyzed Flags Laboratory I D: MB1029W1 n-Nitrosodimethylamine NO 1.0 EPA 8270D 10-29-18 10-29-18 Pyridine NO 1.0 EPA 8270D 10-29-18 10-29-18 Phenol NO 1.0 EPA 8270❑ 10-29-18 10-29-18 Aniline NO 5,0 EPA 8270D 10-29-18 10-29-18 bis(2-0hloroethyl)ether NO 1.0 EPA 8270D 10-29-18 10-29-18 2-Chlarophencl NO 1.0 EPA 8270D 10-29-18 10-29-18 1.3-Dichlorobenzene NO 1.0 EPA 8270D 10-29-18 10-29-18 1,4-Dichlorobenzene ND 1.0 EPA 8270D 10-29-18 10-29-18 Benzyl alcohol NO 1.0 EPA 8270D 10-29-18 10-29-18 1,2-Dichlorobenzene NO 1.0 EPA 8270D 10-29-18 10-29-18 2-Methylphenol (o-Cresol) NO 1.0 EPA 8270D 10-29-18 10-29-18 bis(2-Chloroisopropyl)ether NO 1.0 EPA 8270❑ 10-29-18 10-29-18 (3+4)-Methylphenol (m,p-Cresol) NO 1.0 EPA 8270D 10-29-18 10-29-18 n-Nitroso-di-n-propylamine NO 1.0 EPA 8270D 10-29-18 10-29-18 Hexachlorcethane NO 1,0 EPA 8270D 10-29-18 10-29-18 Nitrobenzene NO 1.0 EPA 8270D 10-29-18 10-29-18 Isophorone NO 1.0 EPA 8270D 10-29-18 10-29-18 2-Nitrophenol NO 1.0 EPA 8270D 10-29-18 10-29-18 2,4-Dimethylphenol ND 1.0 EPA 8270D in-29-tA 1n-29-18 bis(2-Chlorcethoxy)m ethane NO 1.0 EPA 8270D 10-29-18 10-29-18 2,4-Dichlorophencl NO 1.0 EPA 8270D 10-29-18 10-29-18 1,2,4-Trichlorobenzene NO 1.0 EPA 82700 10-29-18 10-29-18 Naphthalene NO 0.10 EPA 82701 10-29-18 10-29-18 4-Chlomaniline NO 1.0 EPA 8270D 10-29-18 10-29-18 Hexachlorobutadiene NO 1.0 EPA 82700 10-29-18 10-29-18 4-Chloro-3-methylphenol NO 1.0 EPA 8270D 10-29-18 10-29-18 2-Methylnaphthalene NO 0.10 EPA 8270D/SIM 10-29-18 10-29-18 1-Methylnaphthalene NO 0.10 EPA 8270D/SIM 10-29-18 10-29-18 Hexachlorocyclopentadiene NO 1.0 EPA 8270D 10-29-18 10-29-18 2,4,6-Trichlorophenol NO 1.0 EPA 8270D 10-29-18 10-29-18 2,3-Dichloroaniline NO 1.0 EPA 8270D 10-29-18 10-29-18 2,4,5-Trichlorophenol NO I'D EPA 8270D 10-29-18 10-29-18 2-Chloronaphthalene NO 1.0 EPA 8270D 10-29-18 10-29-18 2-Nitroaniline NO 1.0 EPA 8270D 10-29-18 10-29-18 1,4-Dinitrobenzene NO 1.0 EPA 8270D 10-29-18 10-29-18 Dimethylphthalate NO 1.0 EPA 8270D 10-29-16 10-29-18 1,3-Dinitrobenzene NO 1.0 EPA 8270D 10-29-18 10-29-18 2,6-Dinitrotoluene NO 1 0 FPA 8270n 10-29-18 10-29-18 1,2-Dinitrobenzene NO 1.0 EPA 8270D 10-29-18 10-29-18 Acenaphthylene NO 0.10 EPA 8270D/SIM 10-29-18 10-29-18 3-Nitroaniline NO 1.0 EPA 8270D 10-29-18 10-29-18 OnSite Environmental, Inc. 14648 NE95' Street, Redmond,WA 98052 (425) 883-3881 This report pertains to the samples analyzed in accordance with the chain of custody, and is intended only for the use of the individual or company to whom it is addressed. 23 Date of Report:October 30, 2018 Samples Submitted:October 25, 2018 Laboratory Reference: 1810-317 Project:38023 SEMIVOLATILE ORGANICS EPA 8270D/SIM METHOD BLANK QUALITY CONTROL page 2 of 2 Date Date Analyte Result POL Method Preoared Analyzed Flaqs Laboratory ID: MB1029WI ... p EP....................__ ......--- .....-.... ..........._...... 2,4-Dinitro phenol ND 5.0 EPA 8270D 10-29-18 10-29-18 Acenaphthene ND 0.10 EPA 8270D/SIM 10-29-18 10-29-18 4-Nitrophencl ND 5.0 EPA 8270D 10-29-18 10-29-18 2,4-Dinitrotcluene NO 1.0 EPA 8270D 10-29-18 10-29-18 Dibenzofuran ND 1.0 EPA 8270D 10-29-18 10-29-18 2,3,5,6-Tetrachlorophencl ND 1.0 EPA 8270D 10-29-18 10-29-18 2,3,4,6-Tetrachlorophenol NO 1.0 EPA 8270D 10-29-18 10-29-18 Diethylphthalate ND 1.0 EPA 8270D 10-29-18 10-29-18 4-Ch lorophenyl-phenyl ether ND 1.0 EPA 8270D 10-29-18 10-29-18 4-Nitroaniline NO 1.0 EPA 8270D 10-29-18 10-29-18 Fluorene ND 0.10 EPA 8270D/SIM 10-29-18 10-29-18 4,6-Din itro-2-methylphencl ND 5.0 EPA 8270D 10-29-18 10-29-18 n-Nitrosodiphenylamine ND 1.0 EPA 8270D 10-29-18 10-29-18 1,2-Diphenylhydrazine NO 1.0 EPA 8270D 10-29-18 10-29-18 4-Bromophenyl-phenylether ND 1.0 EPA 8270D 10-29-18 10-29-18 Hexachlorobenzene ND 1.0 EPA 8270D 10-29-18 10-29-18 Pentachlorophenol ND 5.0 EPA 8270D 10-29-18 10-29-18 Phenanthrene ND 0.10 EPA 8270D/SIM 10-29-18 10-29-18 Anthracene ND 0.10 EPA 8270D/SIM 10-29-18 10-29-18 Carbazole ND 1.0 EPA 8270D 10-29-18 10-29-18 Di-n-butylphthalate ND 5.0 EPA 8270D 10-29-18 10-29-18 Fluoranthene NO 0.10 EPA 8270D/SIM 10-29-18 10-29-18 Benzidine ND 5.0 EPA 8270D 10-29-18 10-29-18 Pyrene ND 0.10 EPA 8270D/SIM 10-29-18 10-29-18 Butylbenzylphthalate ND 1.0 EPA 8270D 10-29-18 10-29-18 bis-2-Ethylhexyladipate ND 5.0 EPA 8270D 10-29-18 10-29-18 3,3'-Dichlorobenzidine ND 1.0 EPA 8270D 10-29-18 10-29-18 Benzo[alanthracene ND 0.010 EPA 8270D/SIM 10-29-18 10-29-18 Chrysene NO 0.010 EPA 8270D/SIM 10-29-18 10-29-18 bis(2-Ethylhexyl)phthalate NO 5.0 EPA 8270D 10-29-18 10-29-18 Di-n-octylphthalate ND 1.0 EPA 8270D 10-29-18 10-29-18 Benzc[blfluoranthene ND 0.010 EPA8270D/SIM 10-29-18 10-29-18 Benzo(j,k)fluoranthene NO 0.010 EPA 8270D/SIM 10-29-18 10-29-18 Benzo[a]pyrene ND 0.010 EPA 8270D/SIM 10-29-18 10-29-18 Indeno[1,2,3-cdlpyrene NO 0.010 EPA 8270D/SIM 10-29-18 10-29-18 Dibenz[a,h]anthracene ND 0.010 EPA 8270D/SIM 10-29-18 10-29-18 Benzofa.h,iloervlene ND 0.010 EPA 8270D/SIM 10-29-18 10-29-18 ............_._. ._._. ......._. .... � ., .... ,, -- ._._---- —._....._ . ..... .... ........ Surrogate: Percent Recovery Control Lrmits 2-Fluorophenol 35 12-80 Phenol-d6 27 10-62 Nitrobenzene-d5 64 30- 103 2-Fluorobiphenyl 58 33- 103 2,4,6-Tribromophenol 67 20- 121 Terphenyl-d14 63 32- 113 OnSite Environmental, Inc. 14648 NE 95 Street, Redmond,WA 98052 425 883-3881 This report pertains to the samples analyzed in accordance with the chain of custody and is intended only for the use of the individual or company to whom it is addressed 24 Date of Report:October 30, 2018 Samples Submitted:October 25, 2018 Laboratory Reference: 1810-317 Project, 38023 SEMIVOLATILE ORGANICS EPA 8270D/SIM SB/SBD QUALITY CONTROL Matrix: Water Units: ug/L Percent Recovery RPD Analyte Result Spike Level Recovery Limits RPD Limit Flaps SPIKE BLANKS Laboratory ID: Si .. ._...... .... ..........�.._...._`_____ ... ......................... ........--............... ...... SB SBD SB SBD SB SBD ...._ .....� ......_ w__.......... .m.,..__- ......... ., __............ Phenol 14.5 12.4 40.0 40.0 36 31 24 52 16 28 2-Chlorophenol 26.0 23.3 40.0 40.0 65 58 44-91 11 30 1,4-Dichlorobenzene 12.3 11.7 20.0 20,0 62 59 36 - 82 5 33 n-Nitroso-di-n-propylamine 17.0 15.2 20.0 20.0 85 76 43-93 11 29 1,2,4-Trichlorobenzene 14.3 14.0 20.0 20.0 72 70 40-86 2 28 4-Chlorc-3-methylphenol 33.5 29.4 40.0 40.0 84 74 49-99 13 25 Acenaphthene 14.9 13.5 20.0 20.0 75 68 47-90 10 25 4-Nitrophenol 23.4 18.8 40.0 40.0 59 47 23 -61 22 30 2,4-Dinitrotoluene 15.6 13.6 20.0 20.0 78 68 42 - 97 14 26 Pentachlorophenol 42.5 39.3 40.0 40.0 106 98 39 - 115 8 29 Pvrene 16.2 14.5 20.0 20.0 81 73 51 - 100 11 22 ......._...._ -------------------------- Surrogate: 2-Fluorophenol 38 34 12-80 Phenol-d6 32 28 10-82 Nitrobenzene-d5 71 67 30- 103 2-Fluorobiphenyl 66 59 33- 103 2,4,6-Tribromophenol 73 64 20- 121 Terphenyl-d14 71 64 32- 113 ....................... _____------------. OnSite Environmental, Inc 14648 NE 95` Street, Redmond,WA 98052 (425) 883-3881 This report pertains to the samples analyzed in accordance with the chain of custody, and is intended only for the use of the individual or company to whom it is addressed. 25 Date of Report:October 30, 2018 Samples Submitted: October 25,2018 Laboratory Reference: 1810-317 Project: 38023 TOTAL METALS EPA 601 OD17471 B Matrix: Soil Units: mg/Kg (ppm) Date Date Analyte Result PQL Method Preoared Analyzed Flags Client ID: KENT-1 Laboratory ID: 10-317-01 Arsenic ND 14 EPA 6010❑ 10-26-15 10-26-18 Barium 100 3.5 EPA 6010D 10-26-18 10-26-18 Cadmium ND 0.69 EPA 6010D 10-26-18 10-26-18 Chromium 19 0.69 EPA 601 OD 10-26-18 10-26-18 Lead 43 6.9 EPA 60100 10-26-18 10-26-18 Mercury ND 0.35 EPA 7471 B 10-26-18 10-26-18 Selenium ND 14 EPA 6010D 10-26-18 10-26-18 Silver ND 1.4 EPA 6010D 10-26-18 10-26-18 Client ID: KENT-2 Laboratory IDr. 10-317-02 Arsenic 20 11 EPA 601 OD 10-26-18 10-26-18 Barium 110 5.4 EPA 601 OD 10-26-18 10-26-18 Cadmium ND 1.1 EPA 6010D 10-26-18 10-26-18 Chromium 31 1.1 EPA 601 OD 10-26-18 10-26-18 Lead 38 11 EPA 6010D 10-26-18 10-26-18 Mercury ND 0.54 EPA 7471B 10-26-18 10-26-18 Selenium ND 11 EPA 601 OD 10-26-18 10-26-18 Silver NO 2.2 EPA 601 CD 10-26-18 10-26-18 Client ID: KENT-3 Laboratory ID: 10-317-03 Arsenic ND 15 EPA 6010D 10-26-18 10-26-18 Barium 98 3.8 EPA 601 OD 10-26-18 10-26-18 Cadmium 0.95 0.76 EPA 6010D 10-26-18 10-26-18 Chromium 33 0.76 EPA 601 OD 10-26-18 10-26-18 Lead 28 7.6 EPA 601 OD 10-26-18 10-26-18 Mercury ND 0.38 EPA 74713 10-26-18 10-26-18 Selenium ND 15 EPA 6010D 10-26-18 10-26-18 Silver ND 1.5 EPA 6010D 10-26-18 10-26-18 ........ _...r.._...__............_._ m...._..__...�.-... OnSite Environmental, Inc. 14648 NE 95 Street, Redmond,WA 98052(425)883-3881 This report pertains to the samples analyzed in accordance with the chain of custody, and is intended only for the use of the individual or company to whom it is addressed. 26 Date of Report:October 30, 2018 Samples Submitted:October 25, 2018 Laboratory Reference: 1810-317 Project:38023 TOTAL METALS EPA 6010D/7471 B METHOD BLANK QUALITY CONTROL Matrix: Soil Units: mg/Kg (ppm) Date Date Analvte Result PQL Method Prepared Analyzed Fleas Laboratory ID: M61026SM1 Arsenic NO 5.0 EPA 6010D 10-26-18 10-26-18 Barium NO 2.5 EPA 6010D 10-26-18 10-26-18 Cadmium NO 0.50 EPA 6010D 10-26-18 10-26-18 Chromium NO 0.50 EPA 6010D 10-26-18 10-26-18 Lead NO 5.0 EPA 6010D 10-26-18 10-26-18 Selenium NO 5.0 EPA 6010D 10-26-18 10-26-18 Silver NO 1.0 EPA 6010D 10-26-18 10-26-18 Laboratory ID: MB1026SI Mercury NO 0.25 EPA 7471B 10-26-18 10-26-18 OnSite Environmental, Inc. 14648 NE 951Street, Redmond,WA 98052(425)883-3881 r This report pertains to the samples analyzed in accordance with the chain of custody, and is intended only for the use of the individual or company to whom it is addressed. 27 Date of Report:October 30, 2018 Samples Submitted: October 25,2018 Laboratory Reference: 1810-317 Project:38023 TOTAL METALS EPA 6010D/7471 B QUALITY CONTROL Matrix: Soil Units: mg/Kg(ppm) Source Percent Recovery RPD Analvte Result Spike Level Result Recovery Limits RPD Limit Flaqs DUPLICATE Laboratory ID: 10-309-02 ORIG DUP Arsenic NO NO NA NA NA NA NA 20 Barium 79.1 80.0 NA NA NA NA 1 20 Cadmium ND ND NA NA NA NA NA 20 Chromium 53.2 47.8 NA NA NA NA 11 20 Lead ND ND NA NA NA NA NA 20 Selenium NO NO NA NA NA NA NA 20 Silver NO NO NA NA NA NA NA 20 Laboratory ID: 10-309-02 Mercury NO NO NA NA NA NA NA 20 MATRIX SPIKES LabofatorvID: 10-309-02 MS MSD MS MSD MS MSD Arsenic 94.0 99.6 100 �100 ND 94 100 75-125 6 20 Barium 201 192 100 100 79.1 122 113 75-125 4 20 Cadmium 49.2 48.3 50.0 50.0 ND 98 97 75-125 2 20 Chromium 159 139 100 100 53.2 106 86 75-125 14 20 Lead 250 247 250 250 ND 100 99 75-125 1 20 Selenium 97.1 96.8 100 100 ND 97 97 75-125 0 20 Silver 23.3 22.9 25.0 25.0 ND 93 92 75-125 2 20 Laboratory ID: 10-309-02 Mercury 0.482 0.507 0.500 0,500 0.0194 93 98 80-120 5 20 ........... ._......... ...______..�......................_..._.. OnSite Environmental, Inc. 14648 NE 95' Street, Redmond,WA 98052 (425)883-3881 This report pertains to the samples analyzed in accordance with the chain of custody, and is intended only for the use of the individual or company to whom it is addressed. 28 Cate of Report:October 30, 2018 Samples Submitted: October 25, 2018 Laboratory Reference: 1810-317 Project:38023 TOTAL METALS EPA 200.8/7470A Matrix: Water Units: ug/L (ppb) Date Date Analvte Result PQL Method Prepared Analvzed Fleas Client ID: KENT-4 Laboratory IC: 10-317-04 Arsenic 18 3.3 EPA 200.8 10-26-18 10-26-18 Barium 68 28 EPA 200.8 10-26-18 10-26-18 Cadmium NO 4A EPA 200.8 10-26-18 10-26-18 Chromium 31 11 EPA 200.8 10-26-18 10-26-18 Lead 15 11 EPA 200.8 10-26-18 10-26-18 Mercury NO 0.50 EPA 7470A 10-30-18 10-30-18 Selenium NO 5.6 EPA 200.8 10-26-18 10-26-18 Silver NO 11 EPA 200.8 10-26-18 10-26-18 OnSite Environmental, Inc. 14648 NE 95 Street, Redmond,WA 98052(425)883-3881 This report pertains to the samples analyzed in accordance with the chain of custody, and is intended only for the use of the individual or company to whom it is addressed. 29 Date of Report:October 30,2018 Samples Submitted:October 25, 2C18 Laboratory Reference: 1810-317 Project: 38023 TOTAL METALS EPA 200.8/7470A QUALITY CONTROL Matrix: Water Units: ug/L (ppb) Date Date Analyte Result POL Method Pre ared Analyzed Flags METHOD BLANK Laboratory ID: MB1026WMI Arsenic NO 3.3 EPA 200.8 10-26-18 10-26-18 Barium NO 28 EPA 200.8 10-26-18 10-26-18 Cadmium NO 4.4 EPA 200.8 10-26-18 10-26-18 Chromium ND 11 EPA 200.8 10-26-18 10-26-18 Lead NO 1.1 EPA 200.8 10-26-18 10-26-18 Selenium ND 5.6 EPA 200.8 10-26-18 10-26-18 Silver ND 11 EPA 200.8 10-26-18 10-26-18 LaboratorylD: MB1030W1 Mercury ND 0.50 .EPA 7470A 10-30-18 10-30-18 Source Percent Recovery RPD Analvte Result Spike Level Result Recovery Limits RPD Limit Flags DUPLICATE Laboratory ID: 10-172-03 CRIG DUP Arsenic ND ND NA NA NA NA NA 20 Barium ND NO NA NA NA NA NA 20 Cadmium NO ND NA NA NA NA NA 20 Chromium ND NO NA NA NA NA NA 20 Lead NO NO NA NA NA NA NA 20 Selenium NO NO NA NA NA NA NA 20 Silver ND ND NA NA NA NA NA 20 Laboratory ID: 10-334-01 Mercury NO ND NA NA NA NA NA 20 MATRIX SPIKES Laboratory ID: 10-172-03 MS MSD MS MSD MS MSD Arsenic 246 249 222 222 ....ND 111 112 75125 Barium 237 247 222 222 ND 107 111 75-125 4 20 Cadmium 233 238 222 222 ND 105 107 75-125 2 20 Chromium 226 234 222 222 ND 102 106 75-125 4 20 Lead 230 241 222 222 ND 104 108 75-125 4 20 Selenium 248 258 222 222 N❑ 112 116 75-125 4 20 Silver 222 234 222 222 ND 100 105 75-125 5 20 Laboratory ID;. 10-334-01 Mercury 9.38 9.38 12.5 12.5 ND 75 75 75125 0 20 OnSite Environmental, Inc. 14648 NE 9 SStreet, Redmond,WA 98052 (425)883-3881 This report pertains to the samples analyzed in accordance with the chain of custody, and is intended only for the use of the individual or company to whom it is addressed. 30 Date of Report:October 30, 2018 Samples Submitted:October 25, 2018 Laboratory Reference: 1810-317 Project:38023 %MOISTURE Date Analyzed: 10-26-18 Client ID Lab ID % Moisture KENT-1 10-317-01 28 KENT-2 10-317-02 54 KENT-3 10-317-03 34 OnSite Environmental, Inc. 14648 NE 95 Street, Redmond,WA 98052(425)883-3881 This report pertains to the samples analyzed in accordance with the chain of custody, and is intended only for the use of the individual or company to whom it is addressed. 31 OnSfte &WpommilitalInc. Data Qualifiers and Abbreviations A- Due to a high sample concentration,the amount spiked is insufficient for meaningful MS/MSD recovery data. B-The analyte indicated was also found in the blank sample. C-The duplicate RPD is outside control limits due to high result variability when analyte concentrations are within five times the quantitation limit. E -The value reported exceeds the quantitation range and is an estimate. F-Surrogate recovery data is not available due to the high concentration of coeluting target compounds. H -The analyte indicated is a common laboratory solvent and may have been introduced during sample preparation,and be impacting the sample result. I - Compound recovery is outside of the control limits. J-The value reported was below the practical quantitation limit. The value is an estimate. K-Sample duplicate RPD is outside control limits due to sample inhomogeneity. The sample was re-extracted and re-analyzed with similar results. L-The RPD is outside of the control limits. M- Hydrocarbons in the gasoline range are impacting the diesel range result. M1 - Hydrocarbons in the gasoline range (toluene-naphthalene)are present in the sample. N- Hydrocarbons in the tube oil range are impacting the diesel range result. N1 - Hydrocarbons in diesel range are impacting lube oil range results. O- Hydrocarbons indicative of heavier fuels are present in the sample and are impacting the gasoline result. P-The RPD of the detected concentrations between the two columns is greater than 40. O-Surrogate recovery is outside of the control limits. S-Surrogate recovery data is not available due to the necessary dilution of the sample. T-The sample chromatogram is not similar to a typical U -The analyte was analyzed for, but was not detected above the reported sample quantitation limit. U1 -The practical quantitation limit is elevated due to interferences present in the sample. V-Matrix Spike/Matrix Spike Duplicate recoveries are outside control limits due to matrix effects. W- Matrix Spike/Matrix Spike Duplicate RPD are outside control limits due to matrix effects. X-Sample extract treated with a mercury cleanup procedure. X1-Sample extract treated with a sulfuric acid/silica gel cleanup procedure. Y-The calibration verification for this analyte exceeded the 20%drift specified in method 8260C, and therefore the reported result should be considered an estimate. The overall performance of the calibration verification standard met the acceptance criteria of the method. Z- ND -Not Detected at POL POL- Practical Quantitation Limit RPD- Relative Percent Difference OnSite Environmental, Inc. 14648 NE 9 S t, Redmond,WA 98052 (425) 883-3881 This repot pertains to the samples analyzed in accordance with the chain of custody, and is intended only for the use of the individual or company to whom it is addressed. a nLSIOW/ � L y m O > � V689 l(asea6 pun Ilol W3H m __.slaleW dl01 h cP a = w ... sIeleW tl01W legal m _ sleigh V6b)i Inlay. x ^I C seI 01110H PIsV PaleuPol90 GhT m WIS/OOLZO sepioglsad smoydsoydo1e6:0 N 3 8 L809 saplogsad auWo143oue6+0 m vzeo©-ODd x g Oanal mod)wlslooLze sHHd a E .. _..-......_—. Y o ipw (sygMfd genet-mol elilml L , i/ � to ifWIS/OoL28 salllnro�we5 �0^�' (Awo valep/J L LOB Vd3 riO3 . ..................')C7'37E1sIlArlaA Z .rllsrwas.nlwwel ....... ......... ..... --. --. ,....._ ___. _..,.,........... ])� W n-ueal��JS.i `.. ] _0 HdLiAta ` — _ `w Z- O (d �a J-Hd1MN ..✓ ✓ �. _. ... . ........ N x31e�D HdJMN J aI�H Hd1nnN s� ❑ { mun O qqpp v 41 rm ax .� � o fllU +mw w E ' uao 3v E a r u u w z 0 O m o 1 CMD < �a w � Road Construction Northwest, Inc. REQUEST FOR INFORMATION PO Box 2228 No. 006 Renton,VVA 98056 TITLE: Possible Contaminated Material in Existing Pipe DATE: 1 011 612 01 8 PROJECT: Kent S 228th St Union PRR Underground Utilities JOB: 1815 TO: Jason Barry STARTED: 1011808 COMPLETED: REQUEST: During our investigation of the existing 72''pipe, the readings on our safety systems indicate teat we may have contaminated materials to deal with during our cleaning and removal Please direct us how the city would like for us to proceed. Thank you Requested Byr Road Conu#nua+hvn Nhhthwi*51, Inc Date: 101113M8 mod" Signed ANSWER: -1 Q/24/18- Please take three representative samples of the sediment materials Within the existing pipe, one at each existing access point. Submit them to a certified testing lab for evaluation. Based on those submitted test report findings, disposal requirements will be determined. Sampling and testing costs will be reimbursed tracking costs under Force Account Guidelines. Based on results and necessary disposal/treatment needs to be determined, a Change Order will be created, say dollars/ton unit item, or other agreeable reimbursement method to dispose. Thank you. jzoti $arty