ACTIVITIES DURING REPORTING PERIOD

Transcription

1 June 30, 2017 Mr. Ed Jones, Project Manager State Department of Ecology th venue Southeast Bellevue, BY E-MIL ONLY RE: PRORESS REPORT, PRIL THROUH JUNE 2017 REMEDIL INVESTITION MONITORIN ND FESIBILITY STUDY, SETTLE, WSHINTON REED ORDER NO. DE FRLLON PN: Dear Mr. Jones: Farallon Consulting, L.L.C. (Farallon) has prepared this progress report on behalf of Capital Industries, Inc. (Capital) to summarize the activities conducted during the second quarter of 2017, pril through June, as part of the ongoing Remedial Investigation (RI) monitoring and Feasibility Study (FS) being conducted at the Capital Site at rd venue South in Seattle,. This progress report has been prepared in accordance with greed Order No. DE entered into by potential liable persons that include Capital; rt Brass Plating, Inc.; Blaser Die Casting Co.; and PSC Environmental Services, LLC (Burlington Environmental, LLC is a wholly owned subsidiary of PSC Environmental Services, LLC, which is a wholly owned subsidiary of Stericycle Environmental Solutions, Inc.); and also with the State Department of Ecology (Ecology) dated pril 23, 2014 (greed Order). Capital and the other potentially liable persons listed above are referred to collectively as the West of 4 th roup. The West of 4 th roup site under the greed Order consists of Site Unit 1 (SU1) and Site Unit 2 (SU2) as depicted on the site diagram provided as ttachment. The Capital Site is located within SU2. CTIVITIES DURIN REPORTIN PERIOD ctivities completed during this progress reporting period included: Continuing operation of vapor intrusion mitigation subslab depressurization systems (SSDSs) at the Pacific Foods Systems North Building at th venue South and at the Olympic Medical Facility at 5900 First venue South in Seattle,. This work included periodic inspection of system operations. Processing data from the semiannual groundwater monitoring and sampling event conducted in March 2017 for select SU2 monitoring wells. Negotiating a scope of work and schedule for conducting a pilot study that uses an in-situ chemical reduction as a remedial technology to reduce or eliminate chlorinated volatile organic compounds in groundwater. The in-situ chemical reaction was groundwater \\edgefs02\projects\457 Capital Indust\ Feasibility Study\Reports\Progress Reports\2017 Q2\ Progress Rpt Q docx

2 State Department of Ecology June 30, 2017 Page 2 remediation technology proposed in the West of Fourth Site Unit 2 Feasibility Study, Seattle dated ugust 11, 2016, prepared by Pacific roundwater roup. Negotiating implementing an interim action at the Capital Plant 4 Building that will result in cleanup of soil contamination that is a current source of impacts to the groundwater and vapor intrusion pathways. The interim action will consist of application of in-situ chemical oxidation and was proposed in the West of Fourth Site Unit 2 Feasibility Study, Seattle dated ugust 11, 2016, prepared by Pacific roundwater roup. These activities are summarized in the sections that follow. VPOR INTRUSION MITITION The SSDS applied vacuum has been maximized at the Pacific Food Systems North Building since the third quarter of 2016 to assess whether concentrations of tetrachloroethene (PCE) and trichloroethene (TCE) in indoor air can be further reduced. The average applied vacuum has been between 6 and 7 inches of water (IOW) with corresponding flow rates ranging from 17 to 24 standard cubic feet per minute. During the winter months of the first quarter of 2017, water accumulated in the system piping, reducing efficiency. The water accumulation has decreased in the second quarter of 2017, suggesting that maximizing the applied vacuum resulted in the system pulling water from subsurface soil pore spaces during wetter seasonal conditions. Decreasing the applied vacuum during wetter seasonal conditions to maintain subslab depressurization, and/or addition of a small knockout tank to drain water from the system are being considered as potential remedies. The SSDS continues to operate continuously and is being checked monthly to evaluate operating conditions and optimize performance. Indoor air sampling will be conducted in July 2017 to evaluate system performance. The results will be reported to Ecology in ugust If the results continue to indicate that PCE and TCE are persistent in indoor air, a third-party evaluation of the SSDS will occur. The SSDS at the Olympic Medical Facility operated continuously during the second quarter of Farallon conducted an inspection of the SSDS in pril The SSDS was operating in accordance with standard operating conditions. The SSDS at Olympic Medical Facility operation will continue and be monitored quarterly. ROUNDWTER MONITORIN ND SMPLIN roundwater monitoring and sampling was performed in March 2017 in accordance with the memorandum regarding FINL West of 4th roundwater Monitoring Program Plan 2017 through Draft Cleanup ction Plan, W4 Joint Deliverable greed Order No. DE dated March 21, 2017, from Ms. Janet Knox of Pacific roundwater roup to Mr. Ed Jones of Ecology. roundwater analytical results have been validated and are summarized to evaluate plume stability and potential for natural attenuation within each of the three groundwater zones. The groundwater data are included on summary figures provided in ttachment B. \\edgefs02\projects\457 Capital Indust\ Feasibility Study\Reports\Progress Reports\2017 Q2\ Progress Rpt Q docx

3 State Department of Ecology June 30, 2017 Page 3 roundwater data on the summary figures herein (ttachment B, Figures 1 through 3 and 1 through 3) are compared to the most current preliminary cleanup levels. The preliminary cleanup levels for the shallowest groundwater in the Water Table Zone are based on protection of air quality. The preliminary cleanup levels for the Shallow and Intermediate Zones are based on the most recent and conservative values for protection of human health and the environment as established in the letter regarding EP s Partial pproval/partial Disapproval of s Human Health Water Quality Criteria and Implementation Tools dated November 15, 2016, from Mr. Daniel D. Opalski of the U.S. Environmental Protection gency to Ms. Maia Bellon of Ecology. This letter includes the most recent standards for protection of water quality approved by the U.S. Environmental Protection gency. The West of 4 th roup continues to work with Ecology to establish appropriate cleanup levels for all media of concern presented in the Feasibility Study Reports for SU1 and SU2. The cleanup standards and cleanup levels will be finalized during preparation of the Cleanup ction Plan. The groundwater data continue to fluctuate slightly, with an overall stable to decreasing trend across SU2 (ttachment B, Figures 1 through 3). The groundwater flow direction continues to be to the southwest toward the Slip 2 area on the Cal Portland Property at 5975 East Marginal Way South. Evaluation of groundwater geochemistry and the potential for natural attenuation of the chlorinated solvents in groundwater continues to indicate that biodegradation of PCE and TCE is occurring in all three groundwater zones as is evident by the full suite of degradation compounds through vinyl chloride. Biodegradation rates are slowest in the Water Table Zone but appear to increase in the lower zones, which are more anaerobic. Elevated concentrations of ethene, a final degradation product of the biodegradation of PCE and TCE, are present at various monitoring wells on the northwestern portion of the plume(s), coinciding with areas of elevated TCE and vinyl chloride (ttachment B, Figures 2 and 3). FESIBILITY STUDY REPORT Ecology and the West of 4 th roup agreed to evaluate the feasibility of select cleanup technologies via bench and/or field-scale pilot testing that reduce the time frame for cleanup and protect the Lower Duwamish Waterway. In June, the West of 4 th roup concurred that changes to the SU2 pilot study location, the reduced scope of work, and the 1-year time frame to complete the pilot study would not achieve the objectives for reducing the contaminant mass in groundwater and providing data to improve the FS cleanup alternative evaluation. The West of 4 th roup proposed conducting pilot studies at SU1 and eliminating the SU2 pilot study. In the letter regarding West of 4 th Site Feasibility Study dated June 27, 2017, from Mr. Jones of Ecology to Messrs. Mike Merryfield, Ronald S. Taylor, Kevin Callan, and ndy Maloy of the West of 4 th roup, Ecology summarizes its position regarding the elimination of the SU2 pilot study and provides an alternative proposal to conduct an interim action at the Capital Plant 4 Building while the SU1 pilot studies are being conducted. Copies of historical deliverables and comments received from Ecology are available on the West of 4 th website ( \\edgefs02\projects\457 Capital Indust\ Feasibility Study\Reports\Progress Reports\2017 Q2\ Progress Rpt Q docx

4 State Department of Ecology June 30, 2017 Page 4 INTERIM MESURES No interim measures were implemented during this reporting period. However, Capital is considering Ecology s proposition to conduct the cleanup work proposed in the FS for the Capital Plant 4 Building as an interim action. If the proposal is accepted and a scope of work agreed upon with Ecology in July 2017, Capital will proceed with the interim action concurrently with the SU1 pilot study work. The cleanup action proposed in the FS consists of treatment of soil and groundwater at the Capital Plant 4 Building using in-situ chemical oxidation. Capital will provide Ecology with a draft Interim ction Work Plan for review and comment by July 25, PUBLIC COMMUNICTIONS No public communication activities were completed by Capital during this period. NTICIPTED WORK IN THE NEXT QURTER Work anticipated to be performed during the third quarter of 2017, July through September, is summarized below. VPOR INTRUSION Indoor and outdoor ambient air samples will be collected at the Pacific Food Systems North Building for laboratory analysis to continue monitoring the performance of the SSDS. Periodic monitoring of the SSDS at the Olympic Medical Facility will be performed. MONITORIN ND SMPLIN CTIVITIES groundwater monitoring and sampling event will be scheduled for September The purpose of the ongoing groundwater monitoring is to evaluate the stability of the plumes, monitor the ongoing natural attenuation processes to refine the time frame for achieving cleanup levels, evaluate existing and potential vapor intrusion risk, and provide data to refine evaluation of the cleanup alternatives presented in FS. FESIBILITY STUDY WORK The revised versions of the SU1 and SU2 Feasibility Study Reports comprising the West of 4 th roup Feasibility Study will be considered final versions of these reports. Following completion of the pilot study, an addendum to the Feasibility Study Reports will be prepared and a final remedial alternative will be proposed for approval by Ecology. Draft Cleanup ction Plan will be prepared for SU1 and SU2 upon concurrence of the West of 4 th roup and Ecology regarding the selected remedial alternative. n amendment to the greed Order that includes the SU1 pilot study work and interim action at the Capital Plant 4 Building will be prepared by Ecology. \\edgefs02\projects\457 Capital Indust\ Feasibility Study\Reports\Progress Reports\2017 Q2\ Progress Rpt Q docx

5 State Department of Ecology June 30, 2017 Page 5 INTERIM MESURES Capital will prepare a draft Interim ction Work Plan for Ecology s review and comment by July 25, If both parties agree on a scope of work for the interim action, Capital will proceed with implementing the interim action in the third or fourth quarter of PUBLIC COMMUNICTIONS The project website ( will be updated with an electronic copy of this progress report. The next progress report will summarize activities completed from July through September 2017 and will be submitted on or before September 8, CLOSIN Farallon trusts that this quarterly progress report provides sufficient information for Ecology needs. If you have questions regarding this project, please contact the undersigned at (425) Sincerely, Farallon Consulting, L.L.C. Jeffrey Kaspar, L.., L.H.. Principal eologist ttachments: ttachment, Site Diagram ttachment B, roundwater nalytical Results cc: Ron Taylor, Capital Industries, Inc. (by ) Donald Verfurth, ordon and Rees, L.L.P. (by ) with link to electronic copy on project website: Janet Knox, Pacific roundwater roup Dana Cannon, spect Consulting Bill Carroll, rrow Environmental Bill Beck, PSC Environmental Services, LLC JK/:mm \\edgefs02\projects\457 Capital Indust\ Feasibility Study\Reports\Progress Reports\2017 Q2\ Progress Rpt Q docx

6 TTCHMENT SITE DIRM PRORESS REPORT, PRIL THROUH JUNE 2017 Capital Industries, Inc. Seattle, Farallon PN: \\edgefs02\projects\457 Capital Indust\ Feasibility Study\Reports\Progress Reports\2017 Q2\ Progress Rpt Q docx

7 S PERL ST OHIO VENUE SOUTH UTH VENUE SOUTH SITE UNIT #1 (SU1) SOUTH DWSON STREET SOUTH BENNETT STREET SOUTH BRNDON STREET 3RD VENUE SOUTH RT BRSS PLTIN, INC. STERICYCLE ENVIRONMENTL SOLUTIONS, INC. BLSER DIE CSTIN CO. IRPORT WY SOUTH SOUTH FINDLY STREET I-5 FREEWY SOUTH LUCILE STREET S DWSON ST I-5 FWY SOUTH MED STREET DUWMISH RIVER SOUTH FIDLO STREET SOUTH HOMER STREET WEST MRINL WY SOUTHWEST TERMINL 115 LEEND RT BRSS PLTIN, INC. BLSER DIE CSTIN CO. STERICYCLE ENVIRONMENTL SOLUTIONS, INC. SITE UNIT BOUNDRY SLIP #2 EST MRINL WY SOUTH 1ST VENUE SOUTH SR 99 SITE UNIT #2 (SU2) 4TH VENUE SOUTH 5TH VENUE SOUTH SOUTH FRONT STREET Drawn By: tperrin 6TH VENUE SOUTH 7TH VENUE SOUTH Checked By: JK SOUTH MICHIN STREET SOUTH ORCS STREET CORSON VENUE SOUTH CRLETON VENUE SOUTH FRLLON PN: SOUTH DORIS STREET SOUTH NEBRSK STREET SOUTH VLE STREET SOUTH HRNEY STREET FLOR VENUE SOUTH S BILEY ST S EDDY ST Source: Esri, Digitallobe, eoeye, Earthstar eographics, CNES/irbus DS, USD, USS, erorid, IN, and the IS User Community ³ FIURE 1 SITE DIRM WEST OF 4TH VENUE ROUP SITE UNIT 2 Farallon SETTLE, WSHINTON CONSULTIN SCLE IN FEET Date: 4/27/2017 Disc Reference: Document Path: Q:\Projects\457 CapitalIndust\009 Feasibility\Figure1_FeasPilotrea_Sitemap.mxd ELLIS VE S 12TH VE S

8 TTCHMENT B ROUNDWTER NLYTICL RESULTS PRORESS REPORT, PRIL THROUH JUNE 2017 Capital Industries, Inc. Seattle, Farallon PN: \\edgefs02\projects\457 Capital Indust\ Feasibility Study\Reports\Progress Reports\2017 Q2\ Progress Rpt Q docx

9 CI-12-WT CI-19-WT DUWMISH RIVER CI-18-WT CI-13-WT CI-17-WT OHIO VENUE SOUTH < < DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/22/ U 0.20 U 0.20 U 0.20 U 0.20 U CI-19-WT NOT SMPLED 3/30/ U 0.20 U 0.20 U 0.20 U 0.20 U CI-19-WT (4.35) DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/22/ U 0.20 U 0.20 U 0.20 U 0.20 U NOT CI-18-WT SMPLED 0.20 U 0.20 U 0.20 U 0.20 U 0.20 U DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/23/2016 NOT SMPLED 0.20 U CI-13-WT 0.20 U 0.20 U 0.20 U 0.20 U U 0.20 U DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/22/ U 0.95 CI-17-WT 0.20 U U U 0.94 WTER TBLE ZONE MONITORIN WELL SITE UNIT BOUNDRY ROUNDWTER SURFCE ELEVTION CONTOUR (DSHED WHERE INFERRED) PPROXIMTE DIRECTION OF ROUNDWTER FLOW (6.56) ROUNDWTER LEVEL ELEVTION NVD BDC-6-WT MW-5 BDC-11-WT C-137-WT MW-3 DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/23/2016 NOT SMPLED CI-12-WT NOT SMPLED NOT SMPLED LEEND DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/25/ U U U BDC-6-WT DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/22/ U /22/2016 NOT SMPLED MW-5 NOT SMPLED DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 0.02 U 0.02 U U 0.02 U 9/19/ U BDC-11-WT U 0.02 U NOT SMPLED DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/23/ U C-137-WT 0.40 U NOT SMPLED DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/23/ U MW-3 9/22/2016 NOT SMPLED 0.20 U U 0.20 U C-141-WT NOT SMPLED SOUTH FIDLO STREET KPSTONE CONTINER CORPORTION 6.00 SITE UNIT 1 SITE UNIT 2 DCE PCE TCE VC BOLD U 7.00 < CERTINTEED YPSUM INC C-140-WT < CI-18-WT (6.56) < FRY EQUIPMENT COMPNY CI-12-WT (NOT MESURED) CL PORTLND SLIP 2 EST MRINL WY SOUTH BDC-2-WT < < CI-13-WT (6.56) CI-17-WT (5.95) < DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 0.02 U BDC-2-WT /19/ U U DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/23/ U SOUTH 5.9 MED STREET 1.5 9/22/ U 1.0 U U MW U 9.00 C-141-WT (8.80) OTT REL ESTTE PROPERTY (JCK IN THE BOX) ST VENUE SOUTH < CI-14-WT (8.01) NORTHWEST SLES ROUP PLNT 5 LL NLYTICL RESULTS IN MICRORMS PER LITER, SMPLE DTES LISTED = DICHLOROETHENE = TETRCHLOROETHENE = TRICHLOROETHENE = VINYL CHLORIDE = INDICTES CONCENTRTIONS EXCEED WEST OF FOURTH ROUNDWTER PRELIMINRY CLENUP LEVELS FOR PROTECTION OF IR = INDICTES CONCENTRTIONS NOT DETECTED BOVE THE STTED LBORTORY PRCTICL QUNTITTION LIMIT MW-2 SMPLE CI-16-WT ROUNDWTER LEVEL WS NOT USED FOR CONTOURIN. CITY LIHT ELECTRICL SUPPLY < STONE CRFT < CI-10-WT (8.66) BECKWITH ND KUFFEL BUILDIN PLNT 1 < DRFT < MW-2 FORMER "WTERFLL" C-137-WT PINT STTION (9.78) (9.66) LOCTION MW-4 (9.85) MW-3 (9.43) OLYMPIC MEDICL BUILDIN MULTI-TENNT WREHOUSE MRTIN SIN FBRICTION < < CI-11-WT (6.67) < < < < CI-16-WT (7.04) CI-16-WT < BDC-1-WT (10.69) < < CI-9-WT (9.66) < Farallon < < CONSULTIN < MW-6 (10.36) MW-7 (10.29) < < < MULTI- TENNT WREHOUSE DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/23/ U U CI-14-WT 0.20 U U 0.20 U FITTINS U INC COMPNY DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/23/ U 0.20 U U 0.61 NOT SMPLED CI-11-WT NOT SMPLED CI-9-WT CI-9-WT CI-10-WT CI-10-WT DTE PCE TCE cis-1,2-dce trans-1,2-dce VC NOT SMPLED 0.02 U BDC-1-WT U 0.02 U NOT SMPLED ROUNDWTER NLYTICL RESULTS FOR WTER TBLE ZONE: REMEDIL INVESTITION SETTLE, WSHINTON FRLLON PN: Drawn By: tperrin Checked By: JK Date: 6/30/2017 Disc Reference: Document Path: Q:\Projects\457 CapitalIndust\007 RemInvMonitoring\2017Q1_W\Fig1_201706_WHVOC WaterTableZone.mxd MW-6 MW-7 MW-4 MW-4 DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 0.02 BDC-4-WT U 0.02 U U 0.02 U 0.02 U U 0.02 U NOT SMPLED BDC-4-WT (NOT MESURED) DTE PCE TCE cis-1,2-dce trans-1,2-dce VC BLSER DIE CSTIN FCILITY 0.02 U BDC-3-WT BDC-3-WT BDC-3-WT 0.02 U (10.61) NOT SMPLED BDC-2-WT DTE PCE TCE cis-1,2-dce trans-1,2-dce VC (NOT MESURED) NOT SMPLED MED BUILDIN C-136-WT C-136-WT 9/19/ BDC-11-WT (10.82) NOT SMPLED (10.08) BDC-6-WT C-136-WT (10.25) DTE PCE TCE cis-1,2-dce trans-1,2-dce VC MW-8 NOT SMPLED CI-MW-1-WT MW-5 CI-MW-1-WT (10.76) CI-MW-1-WT (NOT MESURED) (10.33) NOT SMPLED PLNT 2 PLNT 2 STORE CNOPY YRD THRIFT STORE MW-8 FORMER CHEMICL & PLNT 3 NOT SMPLED PINT STORE RE CHINESE RESTURNT 2ND VENUE SOUTH SOUTH ORCS STREET SOUTH FIDLO STREET MOBILE CRNE OFFICE BUILDIN MOBILE CRNE COMPNY MULTI-TENNT WREHOUSE ³ SCLE IN FEET 7.00 B & OI CI-14-WT CI-11-WT FORMER DRUM STORE RE FORMER DERESER LOCTION ULL INDUSTRIES BUILDIN 9.00 PCIFIC LMP SUPPLY PLNT CHRISTFERSON RDER & KIEF BUILDIN DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/23/ U 0.20 U 0.20 U 0.20 U 0.20 U NOT SMPLED NOT SMPLED BUCKNER WETHERBY BUILDIN 4TH VENUE SOUTH BDC-1-WT BDC-4-WT PCIFIC FOOD SYSTEMS NORTH BUILDIN PCIFIC FOOD SYSTEMS SOUTH BUILDIN DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/22/ U 0.20 U 0.20 U 9/22/2016 3/30/ NOT SMPLED U 0.20 U DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/22/ U 0.20 U U U 0.20 U DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 0.20 U U 0.20 U 9/22/ U U 0.20 U NOT SMPLED DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/23/ U 0.20 U U 0.20 U U 0.20 U DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 0.20 U U 0.40 U U 0.20 U FIURE 1 SOUTH FRONT STREET 6TH VENUE SOUTH

10 DUWMISH RIVER CI-12-WT CI-19-WT OHIO VENUE SOUTH MW-2 MW-3 DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/23/ < < C-137-WT < < 0.50 C-137-WT < 0.50 NOT SMPLED DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/22/ N 0.3 N N N N CI-19-WT NOT SMPLED 3/30/ N N N N N N CI-19-WT DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/23/ N 3.0 N N N N 9/22/ N 1.5 N N N N N N N N N MW-3 N DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/23/ < /22/2016 NOT SMPLED N N N N N MW-3 N DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE N 6 N N N N N N BDC-11-WT 9/19/2016 N -39 N N N N N N _ NOT SMPLED SOUTH FIDLO STREET KPSTONE CONTINER CORPORTION DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/23/2016 NOT SMPLED NOT SMPLED CI-12-WT NOT SMPLED SITE UNIT 1 SITE UNIT 2 DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/22/ N < 0.2 N N N N CI-18-WT CI-18-WT NOT SMPLED N N N N N N DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/23/2016 NOT SMPLED CI-13-WT CI-13-WT < < 0.50 < 0.50 < N < 0.2 N N N N MW-5 BDC-3-WT DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/22/ < < < < 0.50 NOT SMPLED _ CERTINTEED YPSUM INC DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE N -17 N N N N N N N -16 N N N N N MW-5 N NOT SMPLED DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE N 15 N N N N N N BDC-2-WT 9/19/2016 N 39 N N N N N MW-5 N N N N N N N C-141-WT NOT SMPLED CI-12-WT CI-18-WT FRY EQUIPMENT COMPNY OTT REL ESTTE PROPERTY (JCK IN THE BOX) CL PORTLND EST MRINL WY SOUTH CI-13-WT C-141-WT 1ST VENUE SOUTH CI-14-WT NORTHWEST SLES ROUP PLNT 5 CITY LIHT ELECTRICL SUPPLY STONE CRFT CI-10-WT BECKWITH ND KUFFEL BUILDIN PLNT 1 MULTI-TENNT WREHOUSE OLYMPIC MEDICL BUILDIN MRTIN SIN FBRICTION 2ND VENUE SOUTH SOUTH MED STREET BDC-11-WT MW-5 C-137-WT MW-3 SOUTH FIDLO STREET CI-11-WT MED BUILDIN MW-4 BDC-1-WT BDC-2-WT C-136-WT BDC-6-WT CI-MW-1-WT CI-9-WT BDC-3-WT PLNT 2 PLNT 2 CNOPY FORMER CHEMICL & PINT STORE RE PLNT 3 MW-2 MOBILE CRNE OFFICE BUILDIN MOBILE CRNE COMPNY MULTI-TENNT WREHOUSE SOUTH ORCS STREET FORMER "WTERFLL" PINT STTION LOCTION B & OI 3RD VENUE SOUTH FORMER DRUM STORE RE FORMER DERESER LOCTION BDC-4-WT BLSER DIE CSTIN FCILITY STORE YRD PLNT 4 MW-6 MW-7 ULL INDUSTRIES BUILDIN PCIFIC LMP SUPPLY MULTI- TENNT WREHOUSE FITTINS INC COMPNY MW-8 BUCKNER WETHERBY BUILDIN CHRISTFERSON RDER & KIEF BUILDIN 4TH VENUE SOUTH BDC-1-WT MW-5 BDC-4-WT MW-5 BDC-6-WT mw8 C-136-WT mw8 DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE NOT SMPLED CI-MW-1-WT N 23 N N N N N N mw8 NOT SMPLED mw8 MW-8 THRIFT STORE CHINESE RESTURNT PCIFIC FOOD SYSTEMS NORTH BUILDIN PCIFIC FOOD SYSTEMS SOUTH BUILDIN MW-6 MW-6 MW-4 DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/23/ < < 0.74 < 0.50 CI-9-WT CI-9-WT < 1.5 < N N N N N N DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE < < 0.50 < 0.50 CI-10-WT < < N N N N N N DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/23/ < 0.50 < 0.50 CI-14-WT < 0.50 < N < 0.50 < 0.50 DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/23/ N 1.5 N N N N CI-11-WT NOT SMPLED NOT SMPLED 5TH VENUE SO DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE N 95 N N NOT SMPLED N N N N NOT SMPLED DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE N 36 N N N N N N N 18 N N N N N N NOT SMPLED DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/25/2016 N 7 N N N N N N N 37 N N N N N N N N N N N N DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 9/19/2016 N 127 N N NOT SMPLED N N N N NOT SMPLED DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/22/ < < 0.50 < < 0.50 < 0.50 NOT SMPLED DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/22/ N 1 N N N N 9/22/2016 3/30/ N N NOT SMPLED N N N N DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/22/ < 0.50 MW-7 MW < N N N N N N DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE < < 0.50 < /22/ < 0.50 NOT SMPLED SOUTH FRONT STREET 6TH VENUE SOUTH CI-17-WT DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/22/ < < 250 < < 5.0 7,700 CI-17-WT < 66 < N N N N N N WTER TBLE ZONE MONITORIN WELL SITE UNIT BOUNDRY PPROXIMTE DIRECTION OF ROUNDWTER FLOW LEEND SLIP 2 CI-17-WT CI-16-WT FERROUS IRON, NITRTE ND SULFTE IN MILLIRMS PER LITER UNITS METHNE, ETHNE, ND ETHENE IN MICRORMS PER LITER UNITS DO ORP IE N < = DISSOLVED OXYEN (MILLIRMS PER LITER) = OXIDTION REDUCTION POTENTIL (MILLIVOLTS) = INSTRUMENT ERROR = NOT NLYZED = NLYTE NOT DETECTED T OR EXCEEDIN THE REPORTIN LIMIT LISTED DRFT ³ SCLE IN FEET DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/23/ N 2.3 N N N N CI-16-WT NOT SMPLED NOT SMPLED Farallon CONSULTIN FIURE 1 NTURL TTENUTION PRMETER RESULTS FOR WTER TBLE ZONE: REMEDIL INVESTITION SETTLE, WSHINTON FRLLON PN: Drawn By: tperrin Checked By: JK Date: 6/30/2017 Disc Reference: Document Path: Q:\Projects\457 CapitalIndust\007 RemInvMonitoring\2017Q1_W\Fig1_Update_Natttenu WaterTableZone_Update-0617.mxd

11 CI CI DUWMISH RIVER OHIO VENUE SOUTH C C CI DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/23/ U 0.40 U 0.40 U 0.40 U 50 C /22/ U 0.40 U 0.40 U 0.40 U 34 NOT SMPLED DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 0.20 U 0.20 U U 20 C U 1.0 U U U 1.0 U U 130 DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 0.20 U 0.20 U U U 0.20 U CI U 0.81 NOT SMPLED DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/22/ U 0.20 U U U 0.20 U CI U 1.7 NOT SMPLED DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/22/ U 0.20 U U 1.1 CI U 0.20 U U /30/ U 0.20 U U CI (3.50) KPSTONE CONTINER CORPORTION 5.00 SITE UNIT 1 SITE UNIT 2 SOUTH FIDLO STREET 6.00 C C CERTINTEED YPSUM INC BDC-6-30 BDC DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/25/ U BDC U NOT SMPLED DTE PCE TCE cis-1,2-dce trans-1,2-dce VC BDC NORTHWEST 0.02 U 0.02 U SLES 9/19/ U 0.02 U 3.41 ROUP 0.02 U STONE 33.6 CRFT 0.02 U FRY EQUIPMENT COMPNY EST MRINL WY SOUTH CI (NOT MESURED) OTT REL ESTTE PROPERTY (JCK IN THE BOX) C (8.81) 9.00 CI (8.47) 1ST VENUE SOUTH CI (7.98) PLNT 5 BDC OLYMPIC MEDICL BUILDIN CI (8.61) BECKWITH ND KUFFEL BUILDIN DTE PCE TCE cis-1,2-dce trans-1,2-dce VC NOT SMPLED BDC /19/ U 0.2 U U CITY LIHT ELECTRICL SUPPLY PLNT 1 MRTIN SIN FBRICTION SOUTH MED STREET SOUTH FIDLO STREET BDC (9.99) C (9.70) SOUTH ORCS STREET BDC (NOT MESURED) MED BUILDIN BDC-6-30 (10.24) CI CI CI-9-40 (9.66) BDC-3-40 (10.60) C (10.20) CI-MW-1-40 (10.30) PLNT 2 PLNT 2 CNOPY FORMER CHEMICL & PINT STORE RE PLNT 3 FORMER "WTERFLL" PINT STTION LOCTION MOBILE CRNE OFFICE BUILDIN MOBILE CRNE COMPNY MULTI-TENNT WREHOUSE B & OI 3RD VENUE SOUTH FORMER DRUM STORE RE FORMER DERESER LOCTION STORE YRD PLNT 4 CI-7-40 (10.28) ULL INDUSTRIES BUILDIN BDC (10.92) BLSER DIE CSTIN FCILITY MULTI- CI-8-40 (NOT MESURED) DTE PCE TCE cis-1,2-dce TENNT trans-1,2-dce VC CI /23/ U 14 WREHOUSE CI U U 0.20 U 0.40 U BUCKNER WETHERBY BUILDIN PCIFIC LMP SUPPLY DTE PCE CHRISTFERSON RDER & KIEF TCE BUILDIN cis-1,2-dce trans-1,2-dce VC 0.20 U U U TH VENUE SOUTH THRIFT STORE CHINESE RESTURNT PCIFIC FOOD SYSTEMS NORTH BUILDIN PCIFIC FOOD SYSTEMS SOUTH BUILDIN DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/25/2016 NOT SMPLED BDC U 0.02 U NOT SMPLED DTE PCE TCE cis-1,2-dce trans-1,2-dce VC BDC U 0.02 U BDC U NOT SMPLED DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/25/2016 NOT SMPLED C C U 0.02 U U 5.82 NOT SMPLED CI-8-40 CI-8-40 DTE PCE TCE cis-1,2-dce trans-1,2-dce VC CI /22/ U 0.20 U U 0.96 CI U 0.20 U 0.20 U 0.20 U /30/2017 NOT SMPLED CI TH VENUE SOU DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/25/2016 NOT SMPLED CI-MW-1-40 CI-MW U U NOT SMPLED DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/22/ U 0.20 U U 10 3/30/2017 NOT SMPLED NOT SMPLED DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/23/ U 0.20 U U /30/2017 NOT SMPLED NOT SMPLED 6TH VENUE SOUTH CI DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/22/ U 0.20 U 0.20 U CI U 0.20 U NOT SMPLED 0.20 U 0.20 U 0.20 U 0.20 U 0.20 U DTE PCE TCE cis-1,2-dce trans-1,2-dce VC CI /22/ U CI NOT SMPLED 0.40 U CI (6.39) CL PORTLND CI (6.55) MULTI-TENNT WREHOUSE CI (7.81) 7.00 FITTINS INC COMPNY DTE PCE TCE cis-1,2-dce trans-1,2-dce VC CI /23/ U 0.20 U U 1.0 CI /22/2016 NOT SMPLED NOT SMPLED SOUTH FRONT STREET (6.56) CI DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/22/ U 0.20 U 0.20 U 0.20 U 0.38 CI NOT SMPLED 0.20 U 0.20 U 0.20 U 0.20 U 0.72 CPITL INDUSTRIES SHLLOW WTER- BERIN ZONE WELL SITE UNIT BOUNDRY ROUNDWTER SURFCE ELEVTION CONTOUR (DSHED WHERE INFERRED) PPROXIMTE DIRECTION OF ROUNDWTER FLOW ROUNDWTER LEVEL ELEVTION NVD88 LEEND LL NLYTICL RESULTS IN MICRORMS PER LITER, SMPLE DTES LISTED DCE PCE TCE VC BOLD U 5.00 SLIP 2 CI (5.89) CI (5.88) = DICHLOROETHENE = TETRCHLOROETHENE = TRICHLOROETHENE = VINYL CHLORIDE = INDICTES CONCENTRTIONS EXCEED WEST OF FOURTH ROUNDWTER PRELIMINRY CLENUP LEVELS FOR PROTECTION OF SURFCE WTER = INDICTES CONCENTRTIONS NOT DETECTED BOVE THE STTED LBORTORY PRCTICL QUNTITTION LIMIT 6.00 DRFT ³ SCLE IN FEET DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/23/ U 0.20 U 0.20 U 0.20 U 0.20 U CI CI NOT SMPLED NOT SMPLED Farallon CONSULTIN FIURE 2 ROUNDWTER NLYTICL RESULTS FOR SHLLOW ZONE: REMEDIL INVESTITION SETTLE, WSHINTON FRLLON PN: Drawn By: tperrin Checked By: JK Date: 6/30/2017 Disc Reference: Document Path: Q:\Projects\457 CapitalIndust\007 RemInvMonitoring\2017Q1_W\Fig2_201706_WHVOC ShallowZone.mxd

12 DUWMISH RIVER CI BDC DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE NOT SMPLED 9/19/2016 N -63 N N N N N CI-8-40 N N N N N N N OHIO VENUE SOUTH DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE N -24 N N N N N N BDC CI /19/2016 N -54 N N N N N N N N N N N N DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/23/ < < 5.0 1, C /22/ < < 5.0 2,000 C NOT SMPLED DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE < ,300 < C < ,000 C < N N N N N N CI DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE N 4.0 N N N N N 1.5 N N NCI NOT SMPLED SOUTH FIDLO STREET PSC-C PSC-C NOT SMPLED DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/22/ < 50 < 0.50 KPSTONE CONTINER CORPORTION CI < < 0.50 NOT SMPLED PSC-C PSC-C CI FRY EQUIPMENT COMPNY OTT REL ESTTE PROPERTY (JCK IN THE BOX) EST MRINL WY SOUTH 1ST VENUE SOUTH C CI NORTHWEST SLES ROUP PLNT 5 CITY LIHT ELECTRICL SUPPLY STONE CRFT CI BECKWITH ND KUFFEL BUILDIN PLNT 1 OLYMPIC MEDICL BUILDIN MRTIN SIN FBRICTION SOUTH MED STREET 2ND VENUE SOUTH SOUTH ORCS STREET BDC MED BUILDIN PLNT 2 PLNT 2 CNOPY FORMER CHEMICL & PINT STORE RE PLNT 3 C FORMER "WTERFLL" PINT STTION LOCTION SOUTH FIDLO STREET MOBILE CRNE OFFICE BUILDIN MOBILE CRNE COMPNY BDC BDC-6-30 B & OI 3RD VENUE SOUTH BDC-3-40 CI-9-40 BLSER DIE CSTIN FCILITY C CI-MW-1-40 FORMER DRUM STORE RE FORMER DERESER LOCTION CI-7-40 STORE YRD PLNT 4 ULL INDUSTRIES BUILDIN BUCKNER WETHERBY BUILDIN PCIFIC LMP SUPPLY BDC CI-8-40 DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/25/2016 NOT SMPLED BDC CI-8-40 N -42 N N N N N N NOT SMPLED DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE N -56 N N N N N N BDC-3-40 CI-8-40 N -57 N N N N N N NOT SMPLED DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/25/2016 N -9 N N N N N N BDC-6-30 CI-8-40 N -4 N N N N N N NOT SMPLED DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE NOT SMPLED C CI-8-40 N -53 N N N N N N NOT SMPLED DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE CI-8-40 NOT SMPLED CI-MW-1-40 N -57 N N N N N N NOT SMPLED CI-8-40 THRIFT STORE CHINESE RESTURNT PCIFIC FOOD SYSTEMS NORTH BUILDIN PCIFIC FOOD SYSTEMS SOUTH BUILDIN DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/22/ < < 25 4, < < 10 6, /30/2017 NOT SMPLED DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE CI-7-403/22/2016 IE N 5.0 N N N N CI N N N N N N 3/30/2017 NOT SMPLED DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/23/ < < 13 < 1.2 CI < < 9.1 < 1.6 3/30/2017 NOT SMPLED DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE N 5.0 N N N N CI N N N N N N N N N N N N 6TH VENUE SOUTH DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/22/ < ,200 < 130 < 2.1 CI < ,200 < 20 < 1.7 CI /30/ N N N N N N CI SITE UNIT 1 SITE UNIT 2 CERTINTEED YPSUM INC CI MULTI-TENNT WREHOUSE CHRISTFERSON RDER & KIEF BUILDIN MULTI- TENNT WREHOUSE 4TH VENUE SOUTH DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/23/ < 0.50 CI CI < < < < 0.57 CI CI DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/22/ < < 5.0 < 0.50 CI < ,100 < 68 < N N N N N N DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/22/ N < 0.2 N N CI-13-30N NOT SMPLED < < 3.9 < 0.68 CI CL PORTLND CI MULTI-TENNT WREHOUSE CI FITTINS INC COMPNY DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE CI /23/ < < 25 7,400 < 100 < 12 CI < < 25 7,000 < 110 < 12 NOT SMPLED SOUTH FRONT STREET CI DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/22/ N 2.0 N N N N NOT SMPLED CI N N N N N N SLIP 2 CI CI DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/23/ N 2.5 N N N N CI CI NOT SMPLED NOT SMPLED SHLLOW WTER-BERIN ZONE WELL SITE UNIT BOUNDRY PPROXIMTE DIRECTION OF ROUNDWTER FLOW LEEND FERROUS IRON, NITRTE ND SULFTE IN MILLIRMS PER LITER UNITS METHNE, ETHNE, ND ETHENE IN MICRORMS PER LITER UNITS DO ORP IE N < = DISSOLVED OXYEN (MILLIRMS PER LITER) = OXIDTION REDUCTION POTENTIL (MILLIVOLTS) = INSTRUMENT ERROR = NOT NLYZED = NLYTE NOT DETECTED T OR EXCEEDIN THE REPORTIN LIMIT LISTED DRFT SCLE IN FEET Farallon CONSULTIN FIURE 2 NTURL TTENUTION PRMETER RESULTS FOR SHLLOW ZONE: REMEDIL INVESTITION SETTLE, WSHINTON FRLLON PN: Drawn By: jjones Checked By: JK Date: 6/30/2017 Disc Reference: Document Path: \\edgefs02\is\projects\457 CapitalIndust\007 RemInvMonitoring\2017Q1_W\Fig2_Update_Natttenu ShallowZone_Update mxd

13 OHIO VENUE SOUTH C CI C DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 1.0 U 1.0 U 1.0 U 1.0 U U 1.0 U 1.0 U C U U 1.0 U 1.0 U 1.0 U 140 DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 1.0 U 1.0 U 1.0 U 1.0 U U 1.0 U 1.0 U 1.0 UCI U 0.40 U 0.40 U 0.40 U 63 BDC-6-60 BDC DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/23/ U 0.20 U 0.20 U 0.20 U 1.6 C U 0.20 U 0.20 U 0.20 U 3.1 NOT SMPLED 9.00 FRY EQUIPMENT COMPNY DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/25/ U 0.02 U U U 0.02 U 0.02 U 0.02 U BDC-6-60 NOT SMPLED < OTT REL ESTTE PROPERTY (JCK IN THE BOX) DTE PCE TCE cis-1,2-dce trans-1,2-dce VC NOT SMPLED 9/19/ U 0.02 U 0.02 U 0.02 BDC U 1.44 NOT SMPLED C (8.81) CITY LIHT ELECTRICL SUPPLY NORTHWEST SLES ROUP PLNT 5 STONE CRFT MRTIN SIN FBRICTION PLNT 1 2ND VENUE SOUTH < BDC (10.00) MED BUILDIN < BDC-6-60 (10.40) SOUTH MED STREET FORMER "WTERFLL" PINT STTION LOCTION < C SOUTH FIDLO STREET (9.68) MOBILE CRNE OFFICE BUILDIN < < BDC-3-60 (10.58) CI-MW-1-60 (10.39) PLNT 2 PLNT 2 CNOPY FORMER CHEMICL & PINT STORE RE PLNT 3 SOUTH ORCS STREET BLSER DIE CSTIN FCILITY FORMER DRUM STORE RE STORE YRD PLNT 4 FORMER DERESER LOCTION CI-7-60 < (10.19) BDC (10.99) < (10.60) < THRIFT STORE CHINESE RESTURNT PCIFIC FOOD SYSTEMS NORTH BUILDIN PCIFIC FOOD SYSTEMS SOUTH BUILDIN DTE PCE TCE cis-1,2-dce trans-1,2-dce VC NOT SMPLED BDC U 0.02 U NOT SMPLED DTE PCE TCE cis-1,2-dce trans-1,2-dce VC BDC U 0.02 U U 0.77 BDC U U 4.54 NOT SMPLED DTE PCE TCE cis-1,2-dce trans-1,2-dce VC CI-MW /25/2016 NOT SMPLED CI-MW U U NOT SMPLED CI-7-60 CI-7-60 DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/22/ U 0.20 U 0.20 U 0.20 U 0.20 U NOT SMPLED NOT SMPLED DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/22/ U 0.20 U 0.20 U 0.20 U 0.20 U NOT SMPLED NOT SMPLED CI SOUTH FIDLO STREET DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/23/ U 0.20 U 0.20 U 0.20 U 0.20 U 6/28/ U 0.20 U 0.20 U 0.20 U 0.20 U 0.20 U 0.20 U 0.20 U CI U 0.20 U NOT SMPLED < < CI (8.07) CI (8.39) 1ST VENUE SOUTH OLYMPIC MEDICL BUILDIN < CI (8.47) BECKWITH ND KUFFEL BUILDIN MOBILE CRNE COMPNY CI-9-70 (9.50) < ULL INDUSTRIES BUILDIN BUCKNER WETHERBY BUILDIN CI-9-70 DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/23/ U 0.20 U 0.20 U 0.20 U 0.25 NOT SMPLED NOT SMPLED DUWMISH RIVER KPSTONE CONTINER CORPORTION SITE UNIT 1 SITE UNIT 2 CI NOT SMPLED CERTINTEED YPSUM INC CI (NOT MESURED) < EST MRINL WY SOUTH CI (7.84) < MULTI-TENNT WREHOUSE MULTI-TENNT WREHOUSE B & OI CI PCIFIC LMP SUPPLY DTE PCE TCE cis-1,2-dce trans-1,2-dce VC CI U 0.20 U U 1.9 CI NOT SMPLED NOT SMPLED CHRISTFERSON RDER & KIEF BUILDIN MULTI- TENNT WREHOUSE DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/23/ U 0.20 U U U 0.20 U NOT SMPLED U TH VENUE SOUTH CI DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/22/ U 0.20 U 0.20 U 0.20 U 0.20 U NOT SMPLED CI U 0.20 U 0.20 U 0.20 U 0.20 U CI (5.23) < CL PORTLND < CI (7.42) CI CI FITTINS INC COMPNY DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/23/ U 0.20 U 0.20 U 0.20 U 0.67 NOT SMPLED NOT SMPLED SOUTH FRONT STREET < CPITL INDUSTRIES INTERMEDITE WTER-BERIN ZONE WELL SITE UNIT BOUNDRY ROUNDWTER SURFCE ELEVTION CONTOUR (DSHED WHERE INFERRED) PPROXIMTE DIRECTION OF ROUNDWTER FLOW (6.56) ROUNDWTER LEVEL ELEVTION NVD88 LEEND DCE PCE TCE VC BOLD U SLIP 2 LL NLYTICL RESULTS IN MICRORMS PER LITER, SMPLE DTES LISTED CI (7.31) < = DICHLOROETHENE = TETRCHLOROETHENE = TRICHLOROETHENE = VINYL CHLORIDE = INDICTES CONCENTRTIONS EXCEED WEST OF FOURTH ROUNDWTER PRELIMINRY CLENUP LEVELS FOR PROTECTION OF SURFCE WTER = INDICTES CONCENTRTIONS NOT DETECTED BOVE THE STTED LBORTORY PRCTICL QUNTITTION LIMIT DTE PCE TCE cis-1,2-dce trans-1,2-dce VC 3/23/ U 0.20 U 0.20 U 0.20 U 0.20 U CI NOT SMPLED NOT SMPLED ³ Farallon CONSULTIN DRFT SCLE IN FEET 4TH VENUE SOUTH FIURE 3 ROUNDWTER NLYTICL RESULTS FOR INTERMEDITE ZONE: REMEDIL INVESTITION SETTLE, WSHINTON FRLLON PN: Drawn By: tperrin Checked By: JK Date: 6/30/2017 Disc Reference: Document Path: Q:\Projects\457 CapitalIndust\007 RemInvMonitoring\2017Q1_W\Fig3_201706_WHVOC IntermedZone.mxd

14 DUWMISH RIVER BDC C C CI CI OHIO VENUE SOUTH DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE NOT SMPLED 9/19/2016 N -70 N N N N N N NOT SMPLED DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/23/ < < 5.0 5,000 < < < 5.0 5,600 < 79C NOT SMPLED DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE ,700 C < < ,900 < N N N N N N DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE < < 5.0 3,500 < < ,100 < 120CI N N N N N N DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/23/ N 1.0 N N N N N 0.5 N N CI N N NOT SMPLED KPSTONE CONTINER CORPORTION SOUTH FIDLO STREET SITE UNIT 1 SITE UNIT 2 CI NOT SMPLED FRY EQUIPMENT COMPNY CI OTT REL ESTTE PROPERTY (JCK IN THE BOX) CI ST VENUE SOUTH C CI NORTHWEST SLES ROUP PLNT 5 CI CITY LIHT ELECTRICL SUPPLY STONE CRFT OLYMPIC MEDICL BUILDIN BECKWITH ND KUFFEL BUILDIN PLNT 1 SOUTH FIDLO STREET CI MRTIN SIN FBRICTION SOUTH MED STREET 2ND VENUE SOUTH SOUTH ORCS STREET BDC MED BUILDIN PLNT 2 PLNT 2 CNOPY FORMER CHEMICL & PINT STORE RE PLNT 3 C FORMER "WTERFLL" PINT STTION LOCTION MOBILE CRNE OFFICE BUILDIN MOBILE CRNE COMPNY BDC-6-60 B & OI 3RD VENUE SOUTH CI-9-70 BDC-3-60 CI-MW-1-60 FORMER DRUM STORE RE FORMER DERESER LOCTION BLSER DIE CSTIN FCILITY STORE YRD PLNT 4 CI-7-60 ULL INDUSTRIES BUILDIN PCIFIC LMP SUPPLY BUCKNER WETHERBY BUILDIN CHRISTFERSON RDER & KIEF BUILDIN BDC BDC BDC-3-60 BDC-6-60 CI-MW-1-60 THRIFT STORE CHINESE RESTURNT PCIFIC FOOD SYSTEMS NORTH BUILDIN PCIFIC FOOD SYSTEMS SOUTH BUILDIN CI-7-60 DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE N -53 N N NOT SMPLED N N N N NOT SMPLED 5TH VENUE SOUTH DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE N -67 N N N N N N N -51 N N N N N N NOT SMPLED DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/25/2016 N -53 N N N N N N N -44 N N N N N N NOT SMPLED DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE N -50 N N NOT SMPLED N N N N NOT SMPLED DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/22/ N 2.0 N N N N NOT SMPLED NOT SMPLED DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/22/ < < 5.0 4,800 < NOT SMPLED NOT SMPLED DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/23/ N 2.0 N N N N CI-9-70 CI-9-70 NOT SMPLED NOT SMPLED DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE < < 5.0 6,700 < 100 < 7.8 CI < < 5.0 9,100 < 110 < 7.3 NOT SMPLED DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/23/ N < 0.2 N N N N CI NOT SMPLED < < 5.0 4,400 < 110 < 17 6TH VENUE SOUTH CI CERTINTEED YPSUM INC DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/22/ N 0.5 N N CI N N NOT SMPLED < < ,000 < 280 < 34 CL PORTLND EST MRINL WY SOUTH CI MULTI-TENNT WREHOUSE CI MULTI-TENNT WREHOUSE MULTI- TENNT WREHOUSE FITTINS INC COMPNY 4TH VENUE SOUTH DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE SOUTH FRONT STREET 3/23/ < < ,000 < 330 < 22 CI CI NOT SMPLED NOT SMPLED SLIP 2 CI DTE DO ORP NITRTE FERROUS IRON SULFTE METHNE ETHNE ETHENE 3/23/ N 2.0 N N N N CI CI NOT SMPLED NOT SMPLED INTERMEDITE WTER-BERIN ZONE WELL SITE UNIT BOUNDRY PPROXIMTE DIRECTION OF ROUNDWTER FLOW LEEND FERROUS IRON, NITRTE ND SULFTE IN MILLIRMS PER LITER UNITS METHNE, ETHNE, ND ETHENE IN MICRORMS PER LITER UNITS DO ORP IE N < = DISSOLVED OXYEN (MILLIRMS PER LITER) = OXIDTION REDUCTION POTENTIL (MILLIVOLTS) = INSTRUMENT ERROR = NOT NLYZED = NLYTE NOT DETECTED T OR EXCEEDIN THE REPORTIN LIMIT LISTED DRFT SCLE IN FEET Farallon CONSULTIN FIURE 3 NTURL TTENUTION PRMETER RESULTS FOR INTERMEDITE ZONE: REMEDIL INVESTITION SETTLE, WSHINTON FRLLON PN: Drawn By: jjones Checked By: JK Date: 6/30/2017 Disc Reference: Document Path: \\edgefs02\is\projects\457 CapitalIndust\007 RemInvMonitoring\2017Q1_W\Fig3_Update_NatttenuIntermedZone_10-5_Update-0617.mxd