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1060 Colfax St.tifBLACK & VEATCH MEMORANDUM Centel Corporation Blair MGP Site Site Visit to Observe Adjacent Property Excavation To: Trey Pitts From: Barbara Butler B &V Project 143928.0150 B &V File A10A August 24, 2010 Doug Lade of Black & Veatch conducted a site visit on July 30, 2010, to observe and collect soil samples from a residential basement excavation on property located at 1060 Colfax Street, Blair ( "Property "). The Property is south of the lot that once housed the former manufactured gas plant ( "MGP "). The following sections present general historical information regarding the vicinity of the Property, observations during the site visit, and the analytical results for samples collected during the site visit compared to Nebraska Department of Environmental Quality (NDEQ) remediation goals. Property Background Information Bulk oil storage tanks were located on the Property. The bulk oil storage tanks likely stored fuel oil and other petroleum products. The MGP operated between 1908 and 1940 producing gas from coal for heating and lighting. It appears that railroad tracks also had been located on a portion of the Property. After natural gas became available to Midwest communities, most above grade gas plant components were demolished and removed, and below grade components were sometimes abandoned in place. These below grade structures often contained residual materials associated with the manufactured gas plant process. The substances generally associated with 0 sites ulk oil tanks, and historic railroad operations are aromatic hydrocarbons, including benzene; toluene, ethylbenzene, and total xylenes (BTEXs), and polynuclear aromatic hydrocarbons (PAHs). Attachment A contains historical maps of the area around MGP, showing the Property, the railroad tracks, and bulk oil storage facilities. Site Visit Doug met with Lee Coe of Lee Coe Construction and explained that he was there to observe the area excavated for the foundation. The approximate dimensions of the foundation excavation were 24 feet by 70 feet. The depth of the excavation varied from 6 feet to 6.5 feet, and was approximately 6 feet deep where the soil samples were collected. Concrete foundation forms were set up in the excavation so samples were collected from the ground surface using a hoe because the excavation could not be entered safely. The excavation is approximately 60 feet south of the boundary between the Property and the former MGP property. Blair Site Visit T0001 BKGO 8/2010 BLACK & VEATCH MEMORANDUM Centel Corporation Blair MGP Site Page 2 August 24, 2010 No indication of visibly contaminated soil was seen along any of the excavation walls. Soil removed from the excavation from the north wall for sampling contained no odor or discoloration. The soil was light brown in color and appeared to be silty clay. Four soil samples were collected: Soil sample SW01 was collected along the north wall, approximately 3 feet from the west wall and 2 feet below grade. Soil sample SW02 was collected along the north wall, approximately 3 feet from the west wall and 4 feet below grade. Soil sample SW03 was collected along the north wall, approximately 3 feet from the east wall and 2 feet below grade. Soil sample SW04 was collected along the north wall, approximately 3 feet from the east wall and 4 feet below grade. Soil samples were delivered to the Pace Analytical Laboratory of Lenexa, KS, on July 30 for analyses of BTEXs and PAHs. Attachment B contains photographs taken during the site visit. Comparison of Analytical Results with NDEQ Remediation Goals Table 1 on the following page summarizes the concentrations of BTEXs and PAHs detected in the four soil samples. The table also contains the NDEQ Voluntary Cleanup Program Remediation Goals for industrial and residential soil for comparison with the analytical results. Attachment C contains the complete laboratory analytical results. PAHs were detected in all of the soil samples. Toluene was detected in one soil sample. In general, the concentrations decreased with depth. Shallow sample SW01, collected from the northwest portion of the excavation wall, contained the overall highest PAH concentrations. All detections of benzo(a)pyrene exceed NDEQ's residential remediation goal. Samples SW01, SW02, and SW03 also exceed NDEQ's residential goals for benzo(a)anthracene and benzo(b)fluoranthene. Benzo(a)pyrene was detected in sample SW01 at a concentration (2.18 mg /kg) just above the remediation goal of 2.1 mg /kg. Blair Site Visit T0001BKG0 8/2010 BLACK & VEATCH MEMORANDUM Centel Corporation Blair MGP Site Substances Benzene Toluene Ethylbenzene Total Xylenes TABLE 1 BTEXS AND PAHS DETECTED IN SOIL SAMPLES VCP Remediation Goals (mg /kg) Soil Sample Results (mg /kg) Residential I Industrial SW -01 I SW -02 I SW -03 I SW -04 BTEXs 0.92 16 <0.0004 <0.00038 <0.00039 430 2700 0.0018 <0.00038 <0.00039 890 8500 <0.00048 <0.00046 <0.00048 180 1000 <0.0012 <0.0012 <0.0012 PAHs 1200 61000 0.0623 0.0054 NA NA 0.0719 0.0058 5900 100000 0.852 0.0653 0.62 21 1.56 0.209 0.062 2.1 2.18 0.262 0.62 21 3.69 0.634 NA NA 2.71 0.428 6.2 210 <0.026 <0.0053 62 2100 1.91 0.294 0.062 2.1 0.0312 0.0049 570 22000 6.81 0.57 780 41000 0.222 0.0186 0.62 21 1.78 0.285 36 220 0.296 0.0459 NA NA 5.96 0.374 590 31000 8.24 0.684 Acenaphthene Acenaphthylene Anthracene Benzo(a)anthracene Benzo(a)pyrene Benzo(b)fluoranthene Benzo(g,h,i)perylene Benzo(k)fluoranthene Chrysene Dibenzo(a,h)anthracene Fluoranthene Fluorene Indeno(1,2,3- cd)pyrene Naphthalene Phenanthrene Pyrene Notes: 1. Substances not detected in a sample are presented as less than ( " < ") the detection limit. 2. Green highlighted cells indicate concentrations exceeding residential standards. 3. Yellow highlighted cells indicate concentrations exceeding industrial standards. 4. VCP remediation goals are from http: / /www.deq.state.ne.us /, as of 8/23/2010. 0.0114 0.012 0.104 0.378 0.494 1.06 0.709 <0.0054 0.506 <0.0036 1.09 0.0223 0.478 0.0683 0.619 1.34 Page 3 August 24, 2010 <0.0004 <0.0004 <0.00049 <0.0012 Blair Site Visit T00010KGO 8/2010 0.0144 0.0153 0.0869 0.164 0.213 0.421 0.283 <0.0027 0.205 0.0033 0.555 0.0197 0.189 0.0294 0.487 0.689 ATTACHMENT A HISTORICAL MAPS 507 ar col • do in RN 4 R/4 P° .?..if WC 2'P 'S ..... 0°' ay are ar fr J • .1 2 V • H 50 'f 5 47- 53 Ira I rD 1 I 1 1 I 0 1 • it 1. .10• • tr • r as IS JO Jot af ri E. K A WS A 411 t GRANT 10 Oa. 0 Real q .ng a C •.1 Scan, of Not. • r J ACK SON ru. RIS 01 Ps I I I 32 • , fie ev, .•1 - - - - • 5 .•:• • ••• 1 ....IP • . A a p4 C' 74Y IV Sr 7. 7r• its Is no 7r7 ri I a .t• y • I / ; I . ■ I 5 WASHINGTON /71•1122 ii 30 Li LINCOLN GRANT ast ('so) NO TA trOor T n`ci: • Ltri: • r r L- 1.• 1r .4 52 0 1 (4, 15 Environmental Risk nformation & Inteiging 56 ces 1421 Prince Street, Suite 330, Alexandria, VA 22314 Tel 703 836-0402 Fax' 03 836-0460 .• r're 1 7 . 1 5Z 1 1■1 61 42 LINCOLN oon wide • i la_ 84 no •■••• •••. -Pr .I4 130 30 1 „, El LIU till TIM REPRODUCTION OF THIS SANBORN FIRE INSURANCE MAP HAS BEEN MADE BY PERMISSION OF SANBORN MAPPING & GEOGRAPHIC INFORMATION SERVICE, THE COPYRIGHT HOLDER, IN ACCORDANCE WITH THE TERMS AND CONDITIONS OF AN AGREEMENT BETWEEN ENVIRONI.MTFAL IUSK INFORMATION 6 IMAGING SERVICES AND SANBORN MAPPING & GEOGRAPHIC INFORMATION SERVICE DATED AUGUST 1, 1991. 0 Lia rs fl D0 9 8 7.01•1'Irr SIMJNHOr 1.4reir WASH NT ION SANBORN MAPSTM by E R .7/ p 1.•••45r011Al10r1 pfn,ri NO FRONT .1t Lp I. 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LINCOLN 0. & V s 7 a 52 Environment ®I Risk Information & Imaging Services 1421 Prince Street, Suite 390, Alexandria, VA 22314 Tel 703 836-0402 Fax 703836.0468 Es Ormffloseorm -- 1 r E, GRANT At? toc, ',eV/ 17 • (dr THE REPKODUCHON OF THIS SAN FIRE INSURANCE MAP HAS BERN MADE BY PERMISSION Of SANBORN NAPPING & GEOGRAPHIC INFORMATION SERVICE, THE COPYRIGHT HOLDER, IN ACCORDANCE WITH THE TERMS AND CONDITIONS OF AN AGREEMENT BETWEEN ENVIRONMENTAL RISK INFORMATION & IMAGING SERVICES AND SANBORN MAPPING & GEOGRAPHIC INFORMATION SERVICE DATED AUGUST 1, 1991. V] 1 04 Es 1M E-"" E 12 Mau GC9 7 Z 6:/ AX UMMuMNum I J r I TV R D .• I� L 12 Scale of foal 10' a�. to T 1ya ,.. w /. } r..� u q . Y C e' � a^-- ills iie e I I vu COLLEGE et TRIM/ TY SEM /NRRY O >/ .,54,0''.01< p' °11 9/YHA3 9∎3 1.1076 OO N O r r I e r e I♦ w r r r. • r 32 ILR /R CRr'N /NO CO CORN C'NNINO nElln , 30>1• (52) S/a E. LINCOLN Ne• Co RQO • O (a Is e • t • .r o E. WASHINGTON �YYiC� I ^"r ea Environmental Risk Information & Imaging Services 1421 Prince Street, Suite 330, Alexandria, VA 22319 Tel 703 836 Fax 703 836-0468 J76 D 10 ' 6 0 V ccv mar 1 v "'tom] o ! tF 3 t. !1.'6 CI r THE REPRODUCTION OF THIS SANBORN FIRE INSURANCE MAP HAS BEEN MADE BY PERMISSION OF SANBORN MAPPING & GEOGRAPHIC INFORMATION SERVICE, THE COPYRIGHT HOLDER. IN ACCORDANCE WITH THE TERMS AND CONDMONS OF AN AGREEMENT BETWEEN ENVIRONMENTAL RISK INFORMATION & IMAGING SERVICES AND SANBORN MAPPING & GEOGRAPHIC INFORMATION SERVICE DATED AUGUST I. 1991. 4 J / O 12 1" / �p •8 "" rwrep I I bit NISVK1N PS y cab' Nor P7140 Vi E. COLFAX Blair Site Visit 8/2010 ATTACHMENT B PHOTOGRAPHS T0001BKG0 Looking east along north wall of excavation Looking southeast at location of soil samples SW01 and SW02 Looking east along north wall of excavation Looking west at location of soil samples SW03 and SW04 Looking west at excavated soil pile and edge of north wall Looking south toward excavated soil pile and forms for foundation walls Looking southeast from intersection of Grant and 11 `" Streets toward MGP property Looking south from Grant Street toward MGP property and residence adjacent to excavation. ATTACHMENT C ANALYTICAL DATA aceAnalytical www.pacelabacom August 12, 2010 MARK MURPHY BLACK & VEATCH 8400 WARD PARKWAY Kansas City, MO 64114 RE: Project: BLAIR MGP SITE Pace Project No.: 6082987 Dear MARK MURPHY: Enclosed are the analytical results for sample(s) received by the laboratory on July 30, 2010. The results relate only to the samples included in this report. Results reported herein conform to the most current NELAC standards, where applicable, unless otherwise narrated in the body of the report. If you have any questions concerning this report, please feel free to contact me. Sincerely, Angie Brown Angie.Brown@pacelabs.com Project Manager Enclosures Pace Analytical Services, Inc. 9608 Loiret Blvd. Lenexa, KS 66219 (913)599 -5665 REPORT OF LABORATORY ANALYSIS Page 1 of 14 This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. aceAnalytical www.pacelabs.com Project: BLAIR MGP SITE Pace Project No.: 6082987 Kansas Certification IDs 9608 Loiret Boulevard, Lenexa, KS 66219 A2LA Certification #: 2456.01 Arkansas Certification #: 05 -008 -0 Illinois Certification #: 001191 Iowa Certification #: 118 Kansas /NELAP Certification #: E -10116 CERTIFICATIONS Louisiana Certification #: 03055 Nevada Certification #: KS000212008A Oklahoma Certification #: 9205/9935 Texas Certification #: T104704407 -08 -TX Utah Certification #: 9135995665 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. P.h Pace Analytical Services, Inc. 9608 Loiret Blvd. Lenexa, KS 66219 (913)599 -5665 Page 2 of 14 aaceAnalytical www.pecelabs.com Project: BLAIR MGP SITE Pace Project No.: 6082987 SAMPLE SUMMARY Lab ID Sample ID Matrix Date Collected Date Received 6082987001 BLSW01S01P Solid 07/30/10 11:40 07/30/10 17:42 6082987002 BLSWO2S01P Solid 07/30/10 11:50 07/30/10 17:42 6082987003 BLSWO3S01P Solid 07/30/10 11:55 07/30/10 17:42 6082987004 BLSWO4S01P Solid 07/30/10 12:00 07/30/10 17:42 6082987005 BLTB01W01P Solid 07/30/10 12:10 07/30/10 17:42 Pace Analytical Services, Inc. 9608 Loiret Blvd. Lenexa, KS 66219 (913)599 -5665 REPORT OF LABORATORY ANALYSIS Page 3 of 14 This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. 6 Project: BLAIR MGP SITE Pace Project No.: 6082987 Lab ID Sample ID 6082987001 BLSW01S01P 6082987002 BLSW02S01P 6082987003 BLSW03S01P 6082987004 BLSW04S01P 6082987005 BLTB01W01P SAMPLE ANALYTE COUNT Method Pace Analytical Services, Inc. 9608 Loiret Blvd. Lenexa, KS 66219 (913)599 -5665 Analytes Analysts Reported Laboratory REPORT OF LABORATORY ANALYSIS Page 4 of 14 This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. yo ' �__ EPA 8270 by SIM JTK 19 PASI -K EPA 8260 MAM 8 PASI -K ASTM D2974 -87 JHA 1 PAST -K EPA 8270 by SIM JTK 19 PAST -K EPA 8260 MAM 8 PASI -K ASTM D2974 -87 JHA 1 PAST -K EPA 8270 by SIM JTK 19 PAST -K EPA 8260 MAM 8 PASI -K ASTM D2974 -87 JHA 1 PASI -K EPA 8270 by SIM JTK 19 PASI -K EPA 8260 MAM 8 PAST -K ASTM D2974 -87 JHA 1 PASI -K EPA 8260 MAM 8 PASI -K aceAnalytical www,pacelabs.com Project: BLAIR MGP SITE Pace Project No.: 6082987 Sample: BLSW01S01P Lab ID: 6082987001 Collected: 07/30/10 11:40 Received: 07/30/10 17:42 Matrix: Solid Results reported on a "dry- weight" basis Parameters ANALYTICAL RESULTS Pace Analytical Services, Inc. 9608 Loiret Blvd. Lenexa, KS 66219 (913)599 -5665 Report Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 8270 MSSV PAH by SIM Analytical Method: EPA 8270 by SIM Preparation Method: EPA 3546 Acenaphthene 62.3J ug /kg 171 21.3 50 08/09/10 00:00 08/11/10 14:52 83 -32 -9 Acenaphthylene 71.9J ug /kg 171 17.1 50 08/09/10 00:00 08/11/10 14:52 208 -96 -8 Anthracene 852 ug /kg 171 23.4 50 08/09/10 00:00 08/11/10 14:52 120 -12 -7 Benzo(a)anthracene 1560 ug /kg 171 18.2 50 08/09/10 00:00 08/11/10 14:52 56 -55 -3 Benzo(a)pyrene 2180 ug /kg 171 16.1 50 08/09/10 00:00 08/11/10 14:52 50 -32 -8 Benzo(b)fluoranthene 3690 ug /kg 171 14.0 50 08/09/10 00:00 08/11/10 14:52 205 -99 -2 Benzo(g,h,i)perylene 2710 ug /kg 171 18.7 50 08/09/10 00:00 08/11/10 14:52 191 -24 -2 Benzo(k)fluoranthene ND ug /kg 171 26.0 50 08/09/10 00:00 08/11/10 14:52 207 -08 -9 Chrysene 1910 ug /kg 171 23.9 50 08/09/10 00:00 08/11/10 14:52 218 -01 -9 Dibenz(a,h)anthracene 31.2J ug /kg 171 17.7 50 08/09/10 00:00 08/11/10 14:52 53 -70 -3 Fluoranthene 6810 ug /kg 171 19.2 50 08/09/10 00:00 08/11/10 14:52 206 -44 -0 Fluorene 222 ug /kg 171 22.3 50 08/09/10 00:00 08/11/10 14:52 86 -73 -7 Indeno(1,2,3- cd)pyrene 1780 ug /kg 171 21.8 50 08/09/10 00:00 08/11/10 14:52 193 -39 -5 Naphthalene 296 ug /kg 171 24.4 50 08/09/10 00:00 08/11/10 14:52 91 -20 -3 Phenanthrene 5960 ug /kg 171 45.7 50 08/09/10 00:00 08/11/10 14:52 85 -01 -8 B Pyrene 8240 ug /kg 171 20.8 50 08/09/10 00:00 08/11/10 14:52 129 -00 -0 Nitrobenzene -d5 (S) 0 % 32 -111 50 08/09/10 00:00 08/11/10 14:52 4165 -60 -0 S4 2- Fluorobiphenyl (S) 0 % 49 -105 50 08/09/10 00:00 08/11/10 14:52 321 -60 -8 S4 Terphenyl -d14 (S) 0 % 38 -159 50 08/09/10 00:00 08/11/10 14:52 1718 -51 -0 S4 8260 MSV 5035A VOA Analytical Method: EPA 8260 Benzene ND ug /kg 5.2 0.40 1 08/06/10 16:10 71 -43 -2 Ethylbenzene ND ug /kg 5.2 0.48 1 08/06/10 16:10 100 -41 -4 Toluene 1.8J ug /kg 5.2 0.40 1 08/06/10 16:10 108 -88 -3 Xylene (Total) ND ug /kg 5.2 1.2 1 08/06/10 16:10 1330 -20 -7 Dibromofluoromethane (S) 92 % 68 -129 1 08/06/10 16:10 1868 -53 -7 Toluene -d8 (S) 104 % 81 -121 1 08/06/10 16:10 2037 -26 -5 4- Bromofluorobenzene (S) 100 % 75 -131 1 08/06/10 16:10 460 -00 -4 1,2- Dichloroethane -d4 (S) 110 % 77 -131 1 08/06/10 16:10 17060 -07 -0 Percent Moisture Analytical Method: ASTM D2974 -87 Percent Moisture Date: 08/12/2010 12:05 PM 4.3 % 0.50 0.50 1 08/06/10 00:00 REPORT OF LABORATORY ANALYSIS Page 5 of 14 This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. aceAnalytical www.pacelabs.com Project: BLAIR MGP SITE Pace Project No.: 6082987 Sample: BLSW02S01P Results reported on a "dry- weight " basis Parameters 8270 MSSV PAH by SIM Acenaphthene Acenaphthylene Anthracene Benzo(a)anthracene Benzo(a)pyrene Benzo(b)fluoranthene Benzo(g,h,i)perylene Benzo(k)fluoranthene Chrysene Dibenz(a,h)anthracene Fluoranthene Fluorene Indeno(1,2,3- cd)pyrene Naphthalene Phenanthrene Pyrene Nitrobenzene -d5 (S) 2- Fluorobiphenyl (S) Terphenyl -d14 (S) 8260 MSV 5035A VOA Benzene Ethylbenzene Toluene Xylene (Total) Dibromofluoromethane (S) Toluene -d8 (S) 4- Bromofluorobenzene (S) 1,2- Dichloroethane -d4 (S) Percent Moisture Percent Moisture Date: 08/12/2010 12:05 PM Results ANALYTICAL RESULTS Lab ID: 6082987002 Collected: 07/30/10 11:50 Received: Report Units Limit MDL DF Prepared 07/30/10 17:42 Matrix: Solid Analytical Method: EPA 8270 by SIM Preparation Method: EPA 3546 11.4J ug /kg 35.4 4.4 10 08/09/10 00:00 08/11/10 15:09 12.0J ug /kg 35.4 3.5 10 08/09/10 00:00 08/11/10 15:09 104 ug /kg 35.4 4.8 10 08/09/10 00:00 08/11/10 15:09 378 ug /kg 35.4 3.8 10 08/09/10 00:00 08/11/10 15:09 494 ug /kg 35.4 3.3 10 08/09/10 00:00 08/11/10 15:09 1060 ug /kg 35.4 2.9 10 08/09/10 00:00 08/11/10 15:09 709 ug /kg 35.4 3.9 10 08/09/10 00:00 08/11/10 15:09 ND ug /kg 35.4 5.4 10 08/09/10 00:00 08/11/10 15:09 506 ug /kg 35.4 4.9 10 08/09/10 00:00 08/11/10 15:09 ND ug /kg 35.4 3.6 10 08/09/10 00:00 08/11/10 15:09 1090 ug /kg 35.4 4.0 10 08/09/10 00:00 08/11/10 15:09 22.3J ug /kg 35.4 4.6 10 08/09/10 00:00 08/11/10 15:09 478 ug /kg 35.4 4.5 10 08/09/10 00:00 08/11/10 15:09 68.3 ug /kg 35.4 5.0 10 08/09/10 00:00 08/11/10 15:09 619 ug /kg 35.4 9.4 10 08/09/10 00:00 08/11/10 15:09 1340 ug /kg 35.4 4.3 10 08/09/10 00:00 08/11/10 15:09 0 % 32 -111 10 08/09/10 00:00 08/11/10 15:09 0 % 49 -105 10 08/09/10 00:00 08/11/10 15:09 0 % 38 -159 10 08/09/10 00:00 08/11/10 15:09 Analytical Method: EPA 8260 ND ug /kg 5.0 0.38 1 08/06/10 16:27 ND ug /kg 5.0 0.46 1 08/06/10 16:27 ND ug /kg 5.0 0.38 1. 08/06/10 16:27 ND ug /kg 5.0 1.2 1 08/06/10 16:27 92 % 68 -129 1 08/06/10 16:27 103 % 81 -121 1 08/06/10 16:27 102 % 75 -131 1 08/06/10 16:27 110 % 77 -131 1 08/06/10 16:27 Analytical Method: ASTM D2974 -87 6.9 % 0.50 0.50 1 08/06/10 00:00 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. Pace Analytical Services, Inc. 9608 Loiret Blvd. Lenexa, KS 66219 (913)599 -5665 Analyzed CAS No. Qual 83 -32 -9 208 -96 -8 120 -12 -7 56 -55 -3 50 -32 -8 205 -99 -2 191 -24 -2 207 -08 -9 218 -01 -9 53 -70 -3 206 -44 -0 86 -73 -7 193 -39 -5 91 -20 -3 85 -01 -8 129 -00 -0 4165 -60 -0 321 -60 -8 1718 -51 -0 71 -43 -2 100 -41 -4 108 -88 -3 1330 -20 -7 1868 -53 -7 2037 -26 -5 460 -00 -4 17060 -07 -0 S4 S4 S4 Page 6 of 14 Parameters Date: 08/12/2010 12:05 PM ANALYTICAL RESULTS Project: BLAIR MGP SITE Pace Project No.: 6082987 Sample: BLSWO3S01P Lab ID: 6082987003 Collected: 07/30/10 11:55 Received: 07/30/10 17:42 Matrix: Solid Results reported on a "dry- weight" basis Pace Analytical Services, Inc. 9608 Loiret Blvd. Lenexa, KS 66219 (913)599 -5665 Report Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 8270 MSSV PAH by SIM Analytical Method: EPA 8270 by SIM Preparation Method: EPA 3546 Acenaphthene 5.4J ug /kg 35.3 4.4 10 08/09/10 00:00 08/11/10 15:27 83 -32 -9 Acenaphthylene 5.8J ug /kg 35.3 3.5 10 08/09/10 00:00 08/11/10 15:27 208 -96 -8 Anthracene 65.3 ug /kg 35.3 4.8 10 08/09/10 00:00 08/11/10 15:27 120 -12 -7 Benzo(a)anthracene 209 ug /kg 35.3 3.7 10 08/09/10 00:00 08/11/10 15:27 56 -55 -3 Benzo(a)pyrene 262 ug /kg 35.3 3.3 10 08/09/10 00:00 08/11/10 15:27 50 -32 -8 Benzo(b)fluoranthene 634 ug /kg 35.3 2.9 10 08/09/10 00:00 08/11/10 15:27 205 -99 -2 Benzo(g,h,i)perylene 428 ug /kg 35.3 3.8 10 08/09/10 00:00 08/11/10 15:27 191 -24 -2 Benzo(k)fluoranthene ND ug /kg 35.3 5.3 10 08/09/10 00:00 08/11/10 15:27 207 -08 -9 Chrysene 294 ug /kg 35.3 4.9 10 08/09/10 00:00 08/11/10 15:27 218 -01 -9 Dibenz(a,h)anthracene 4.9J ug /kg 35.3 3.6 10 08/09/10 00:00 08/11/10 15:27 53 -70 -3 Fluoranthene 570 ug /kg 35.3 4.0 10 08/09/10 00:00 08/11/10 15:27 206 -44-0 Fluorene 18.6J ug /kg 35.3 4.6 10 08/09/10 00:00 08/11/10 15:27 86 -73 -7 Indeno(1,2,3- cd)pyrene 285 ug /kg 35.3 4.5 10 08/09/10 00:00 08/11/10 15:27 193 -39 -5 Naphthalene 45.9 ug /kg 35.3 5.0 10 08/09/10 00:00 08/11/10 15:27 91 -20 -3 Phenanthrene 374 ug /kg 35.3 9.4 10 08/09/10 00:00 08/11/10 15:27 85 -01 -8 Pyrene 684 ug /kg 35.3 4.3 10 08/09/10 00:00 08/11/10 15:27 129 -00 -0 Nitrobenzene -d5 (S) 0 % 32 -111 10 08/09/10 00:00 08/11/10 15:27 4165 -60 -0 S4 2- Fluorobiphenyl (S) 0 % 49 -105 10 08/09/10 00:00 08/11/10 15:27 321 -60 -8 S4 Terphenyl -d14 (S) 0 % 38 -159 10 08/09/10 00:00 08/11/10 15:27 1718 -51 -0 S4 8260 MSV 5035A VOA Analytical Method: EPA 8260 Benzene ND ug /kg 5.2 0.39 1 08/06/10 16:43 71 -43 -2 Ethylbenzene ND ug /kg 5.2 0.48 1 08/06/10 16:43 100 -41 -4 Toluene ND ug /kg 5.2 • 0.39 1 08/06/10 16:43 108 -88 -3 Xylene (Total) ND ug /kg 5.2 1.2 1 08/06/10 16:43 1330 -20 -7 Dibromofluoromethane (S) 92 % 68 -129 1 08/06/10 16:43 1868 -53 -7 Toluene -d8 (S) 104 % 81 -121 1 08/06/10 16:43 2037 -26 -5 4- Bromofluorobenzene (S) 102 % 75 -131 1 08/06/10 16:43 460 -00 -4 1,2- Dichloroethane -d4 (S) 110 % 77 -131 1 08/06/10 16:43 17060 -07 -0 Percent Moisture Analytical Method: ASTM D2974 -87 Percent Moisture 6.9 % 0.50 0.50 1 08/06/10 00:00 REPORT OF LABORATORY ANALYSIS Page 7 of 14 This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. Date: 08/12/2010 12:05 PM ANALYTICAL RESULTS Project: BLAIR MGP SITE Pace Project No.: 6082987 Sample: BLSWO4S01P Lab ID: 6082987004 Collected: 07/30/10 12:00 Received: 07/30/10 17:42 Matrix: Solid Results reported on a "dry- weight" basis Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 8270 MSSV PAH by SIM Analytical Method: EPA 8270 by SIM Preparation Method: EPA 3546 Acenaphthene 14.4J ug /kg 18.0 2.2 5 08/09/10 00:00 08/11/10 15:44 83 -32 -9 Acenaphthylene 15.3J ug /kg 18.0 1.8 5 08/09/10 00:00 08/11/10 15:44 208 -96 -8 Anthracene 86.9 ug /kg 18.0 2.5 5 08/09/10 00:00 08/11/10 15:44 120 -12 -7 Benzo(a)anthracene 164 ug /kg 18.0 1.9 5 08/09/10 08/11/10 15:44 56 -55 -3 Benzo(a)pyrene 213 ug /kg 18.0 1.7 5 08/09/10 00:00 08/11/10 15:44 50 -32 -8 Benzo(b)fluoranthene 421 ug /kg 18.0 1.5 5 08/09/10 00:00 08/11/10 15:44 205 -99 -2 Benzo(g,h,i)perylene 283 ug /kg 18.0 2.0 5 08/09/10 00:00 08/11/10 15:44 191 -24 -2 Benzo(k)fluoranthene ND ug /kg 18.0 2.7 5 08/09/10 00:00 08/11/10 15:44 207 -08 -9 Chrysene 205 ug /kg 18.0 2.5 5 08/09/10 00:00 08/11/10 15:44 218 -01 -9 Dibenz(a,h)anthracene 3.3J ug /kg 18.0 1.9 5 08/09/10 00:00 08/11/10 15:44 53 -70 -3 Fluoranthene 555 ug /kg 18.0 2.0 5 08/09/10 00:00 08/11/10 15:44 206 -44 -0 Fluorene 19.7 ug /kg 18.0 2.4 5 08/09/10 00:00 08/11/10 15:44 86 -73 -7 Indeno(1,2,3- cd)pyrene 189 ug /kg 18.0 2.3 5 08/09/10 00:00 08/11/10 15:44 193 -39 -5 Naphthalene 29.4 ug /kg 18.0 2.6 5 08/09/10 00:00 08/11/10 15:44 91 -20 -3 Phenanthrene 487 ug /kg 18.0 4.8 5 08/09/10 00:00 08/11/10 15:44 85 -01 -8 Pyrene 689 ug /kg 18.0 2.2 5 08/09/10 00:00 08/11/10 15:44 129 -00 -0 Nitrobenzene -d5 (S) 81 % 32 -111 5 08/09/10 00:00 08/11/10 15:44 4165 -60 -0 2- Fluorobiphenyl (S) 88 % 49 -105 5 08/09/10 00:00 08/11/10 15:44 321 -60 -8 Terphenyl -d14 (S) 89 % 38 -159 5 08/09/10 00:00 08/11/10 15:44 1718 -51 -0 8260 MSV 5035A VOA Analytical Method: EPA 8260 Benzene ND ug /kg 5.3 0.40 1 08/06/10 17:00 71 -43 -2 Ethylbenzene ND ug /kg 5.3 0.49 1 08/06/10 17:00 100 -41 -4 Toluene ND ug /kg 5.3 0.40 1 08/06/10 17:00 108 -88 -3 Xylene (Total) ND ug /kg 5.3 1.2 1 08/06/10 17:00 1330 -20 -7 Dibromofluoromethane (S) 94 % 68 -129 1 08/06/10 17:00 1868 -53 -7 Toluene -d8 (S) 104 % 81 -121 1 08/06/10 17:00 2037 -26 -5 4- Bromofluorobenzene (S) 103 % 75 -131 1 08/06/10 17:00 460 -00 -4 1,2- Dichloroethane -d4 (S) 111 % 77 -131 1 08/06/10 17:00 17060 -07 -0 Percent Moisture Analytical Method: ASTM D2974 -87 Percent Moisture 9.9 % 0.50 0.50 1 08/06/10 00:00 REPORT OF LABORATORY ANALYSIS Page 8 of 14 This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. ac Pace Analytical Services, Inc. 9608 Loiret Blvd. Lenexa, KS 66219 (913)599 -5665 aceAnalytical ® www.pacelabs.com Parameters Date: 08/12/2010 12:05 PM ANALYTICAL RESULTS Project: BLAIR MGP SITE Pace Project No.: 6082987 Sample: BLTB01W01P Lab ID: 6082987005 Collected: 07/30/10 12:10 Received: 07/30/10 17:42 Matrix: Solid Results reported on a "wet - weight" basis Report Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 8260 MSV 5035A VOA Analytical Method: EPA 8260 Benzene ND ug /kg 5.0 0.38 1 08/06/10 14:46 71 -43 -2 Ethylbenzene ND ug /kg 5.0 0.46 1 08/06/10 14:46 100 -41 -4 Toluene 1.2J ug /kg 5.0 0.38 1 08/06/10 14:46 108 -88 -3 Xylene (Total) 1.3J ug /kg 5.0 1.2 1 08/06/10 14:46 1330 -20 -7 Dibromofluoromethane (S) 97 % 68 -129 1 08/06/10 14:46 1868 -53 -7 Toluene -d8 (S) 102 % 81 -121 1 08/06/10 14:46 2037 -26 -5 4- Bromofluorobenzene (S) 100 % 75 -131 1 08/06/10 14:46 460 -00 -4 1,2- Dichloroethane -d4 (S) 103 % 77 -131 1 08/06/10 14:46 17060 -07 -0 REPORT OF LABORATORY ANALYSIS Page 9 of 14 This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. Pace Analytical Services, Inc. 9608 Loiret Blvd. Lenexa, KS 66219 (913)599 -5665 aceAnalytical wwwpacelabs.com Project: BLAIR MGP SITE Pace Project No.: 6082987 QC Batch: OEXT/24935 Analysis Method: EPA 8270 by SIM QC Batch Method: EPA 3546 Analysis Description: 8270/3546 MSSV PAH by SIM Associated Lab Samples: 6082987001, 6082987002, 6082987003, 6082987004 METHOD BLANK: 683423 Matrix: Solid Associated Lab Samples: Parameter Acenaphthene ug /kg ND 3.3 08/11/10 14:18 Acenaphthylene ug /kg ND 3.3 08/11/10 14:18 Anthracene ug /kg ND 3.3 08/11/10 14:18 Benzo(a)anthracene ug /kg ND 3.3 08/11/10 14:18 Benzo(a)pyrene ug /kg ND 3.3 08/11/10 14:18 Benzo(b)fluoranthene ug /kg ND 3.3 08/11/10 14:18 Benzo(g,h,i)perylene ug /kg ND 3.3 08/11/10 14:18 Benzo(k)fluoranthene ug /kg ND 3.3 08/11/10 14:18 Chrysene ug /kg ND 3.3 08/11/10 14:18 Dibenz(a,h)anthracene ug /kg ND 3.3 08/11/10 14:18 Fluoranthene ug /kg ND 3.3 08/11/10 14:18 Fluorene ug /kg ND 3.3 08/11/10 14:18 Indeno(1,2,3- cd)pyrene ug /kg ND 3.3 08/11/10 14:18 Naphthalene ug /kg ND 3.3 08/11/10 14:18 Phenanthrene ug /kg 1.3J 3.3 08/11/10 14:18 Pyrene ug /kg ND 3.3 08/11/10 14:18 2- Fluorobiphenyl (S) % 96 49 -105 08/11/10 14:18 Nitrobenzene -d5 (S) % 75 32 -111 08/11/10 14:18 Terphenyl -d14 (S) % 91 38 -159 08/11/10 14:18 LABORATORY CONTROL SAMPLE: 683424 QUALITY CONTROL DATA 6082987001, 6082987002, 6082987003, 6082987004 Blank Reporting Units Result Limit Analyzed Qualifiers Spike LCS LCS % Rec Parameter Units Conc. Result % Rec Limits Qualifiers Acenaphthene ug /kg 33.3 30.5 92 43 -113 Acenaphthylene ug /kg 33.3 31.8 96 39 -115 Anthracene ug /kg 33.3 31.1 93 39 -120 Benzo(a)anthracene ug /kg 33.3 31.5 95 43 -121 Benzo(a)pyrene ug /kg 33.3 31.2 94 44 -117 Benzo(b)fluoranthene ug /kg 33.3 32.7 98 45 -128 Benzo(g,h,i)perylene ug /kg 33.3 32.5 98 27 -123 Benzo(k)fluoranthene ug /kg 33.3 31.8 96 44 -128 Chrysene ug /kg 33.3 30.8 93 41 -121 Dibenz(a,h)anthracene ug /kg 33.3 32.2 97 35 -123 Fluoranthene ug /kg 33.3 30.8 93 40 -121 Fluorene ug /kg 33.3 30.7 92 43 -118 Indeno(1,2,3- cd)pyrene ug /kg 33.3 32.2 97 29 -124 Naphthalene ug /kg 33.3 24.1 72 44 -110 Phenanthrene ug /kg 33.3 33.1 99 38 -121 Pyrene ug /kg 33.3 31.2 94 42 -124 2- Fluorobiphenyl (S) % 102 49 -105 Nitrobenzene -d5 (S) % 81 32 -111 Date: 08/12/2010 12:05 PM Pace Analytical Services, Inc. 9608 Loiret Blvd. Lenexa, KS 66219 (913)599 -5665 REPORT OF LABORATORY ANALYSIS Page 10 of 14 This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. aceAnalytical 6 www.pacelabs.com Project: BLAIR MGP SITE Pace Project No.: 6082987 LABORATORY CONTROL SAMPLE: 683424 Terphenyl -d14 (S) Parameter Date: 08/12/2010 12:05 PM QUALITY CONTROL DATA Spike LCS LCS % Rec Units Conc. Result % Rec Limits Qualifiers 92 38 -159 Pace Analytical Services, Inc. 9608 Loiret Blvd. Lenexa, KS 66219 (913)599 -5665 REPORT OF LABORATORY ANALYSIS Page 11 of 14 This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. a aceAnalytical www.pacelabacom Project: BLAIR MGP SITE Pace Project No.: 6082987 QUALITY CONTROL DATA QC Batch: MSV/30876 Analysis Method: EPA 8260 QC Batch Method: EPA 8260 Analysis Description: 8260 MSV 5035A Volatile Organics Associated Lab Samples: 6082987001, 6082987002, 6082987003, 6082987004, 6082987005 METHOD BLANK: 682581 Matrix: Solid Associated Lab Samples: 6082987001, 6082987002, 6082987003, 6082987004, 6082987005 Blank Reporting Parameter Units Result Limit Analyzed Qualifiers Benzene ug /kg ND 5.0 08/06/10 11:58 Ethylbenzene ug /kg ND 5.0 08/06/10 11:58 Toluene ug /kg 1.3J 5.0 08/06/10 11:58 Xylene (Total) ug /kg 1.5J 5.0 08/06/10 11:58 1,2- Dichloroethane -d4 (S) % 104 77 -131 08/06/10 11:58 4- Bromofluorobenzene (S) % 101 75 -131 08/06/10 11:58 Dibromofluoromethane (S) % 89 68 -129 08/06/10 11:58 Toluene -d8 (S) % 104 81 -121 08/06/10 11:58 LABORATORY CONTROL SAMPLE: 682582 Spike LCS LCS % Rec Parameter Units Conc. Result % Rec Limits Qualifiers Benzene ug /kg 100 111 111 84 -119 Ethylbenzene ug /kg 100 113 113 80 -120 Toluene ug /kg 100 109 109 83 -117 X_ylene Total) ug /kg 300 r 336 ') 112 80 -120 - 6chloroethane -d4 (S) % ° 102 77 -131 4- Bromofluorobenzene (S) % 101 75 -131 Dibromofluoromethane (S) % 102 68 -129 Toluene -d8 (S) % 99 81 -121 Date: 08/12/2010 12:05 PM REPORT OF LABORATORY ANALYSIS Page 12 of 14 This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. ��fnelac,= Pace Analytical Services, Inc. 9608 Loiret Blvd. Lenexa, KS 66219 (913)599 -5665 aceAnalytical Project: Pace Project No.: www.pacelabs.com METHOD BLANK: 682963 Associated Lab Samples: Parameter Percent Moisture Parameter Date: 08/12/2010 12:05 PM BLAIR MGP SITE 6082987 QC Batch: PMST /5318 QC Batch Method: ASTM D2974 -87 Associated Lab Samples: 6082987001, 6082987002, SAMPLE DUPLICATE: 682964 6082987001,6082987002, Percent Moisture Units Units QUALITY CONTROL DATA Analysis Method: ASTM D2974 -87 Analysis Description: Dry Weight/Percent Moisture 6082987003, 6082987004 Matrix: Solid 6082987003,6082987004 Blank Result 6082809023 Result 18.0 Reporting Limit Analyzed ND 0.50 08/06/10 00:00 Dup Result 18.0 RPD REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. Qualifiers Max RPD 0 20 Pace Analytical Services, Inc. 9608 Loiret Blvd. Lenexa, KS 66219 (913)599 -5665 Qualifiers Page 13 of 14 aceAnalytical Project: BLAIR MGP SITE Pace Project No.: 6082987 DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to changes in sample preparation, dilution of the sample aliquot, or moisture content. ND - Not Detected at or above adjusted reporting limit. J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit MDL -Adjusted Method Detection Limit. S - Surrogate 1,2- Diphenylhydrazine (8270 listed analyte) decomposes to Azobenzene. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference U - Indicates the compound was analyzed for, but not detected. N- Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Pace Analytical is NELAP accredited. Contact your Pace PM for the current list of accredited analytes. LABORATORIES www.pacelabs.com PAST -K Pace Analytical Services - Kansas City ANALYTE QUALIFIERS B S4 Date: 08/12/2010 12:05 PM QUALIFIERS Analyte was detected in the associated method blank. Surrogate recovery not evaluated against control limits due to sample dilution. REPORT OF LABORATORY ANALYSIS Page 14 of 14 This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. Pace Analytical Services, Inc. 9608 Loiret Blvd. Lenexa, KS 66219 (913)599 -5665