Loading...
HomeMy WebLinkAbout1.07 General Application Materials_Part8Client Sample ID : Lab Sample ID : Date Collected : Date Received : Date Prepared : Date Analyzed : Percent Moisture : P3C6HSI 0l-6007-0lA tU0U200t tt/02t2001 tt/0612001 ty09l200t 28.51 Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-6021 Client Project ID : Unocal Parachute Lab Work Order : 01-6007 Sample Matrix : Soil Lab File ID : GCMSIl08\3001030.D Method Blank : MB-10506 Prep Factor : 333.11125976056 Effective Dilution : 6.99 Method: SW8270C 827OC Hazardous Substance List Units:us/Ks Analyte cAs #Concentration RL POL Acenaphthene Acenaphthylene Anthracene Benzo(b&k)fl uoranthene Benzo(a)anthracene 83-32-9 208-96-8 120-12-7 205-99-2+k 56-55-3 1600 2500 3900 7100 3900 12000 1 2000 12000 23000 1 2000 I Benzo(a)pyrene Benzo(g,h,i)perylene Benzoic acid Benzyl alcohol Bis(2-chlo roethyl)ether 50-32-8 191-24-2 65-85-0 100-51-6 111-44-4 4100 4000 1 3000 3600 3500 Bis(2-chloroeth oxy)meth ane Dichlorodiisopropyl ether Bis(2-ethylhexyl)phthalate 4-Bromophenyl phenyl ether Butyl benzyl phthalate 1 800 4500 4900 4600 4600 12000 12000 12000 12000 12000 111-91-1 1 08-60-1 117-81-7 I 01-55-3 85-68-7 4-Chloroanlline 4-Chlo ro-3-m ethylph enol 2-Chloronaphthalene 2-Chlorophenol 4-Chlorophenylphenyl ether 4400 5000 2400 3000 3500 12000 12000 I 2000 12000 12000 106-47-8 59-50-7 91-58-7 95-57-8 7005-72-3 Chrysene Dibenz(a, h)anthracene Dibenzofuran DFn-butylphthalate 1,2-Dichlorobenzene 3900 4500 2600 4300 31 00 12000 12000 12000 12000 12000 218-01-9 53-70-3 132-64-9 84-74-2 95-50-1 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 1,3-Dichlorobenzene 1,4-Dichlorobenzene 3, 3' -Dichlorobenzidine 2,4-Dichlorophenol Diethylphthalate 541-73-1 106-46-7 91-94-1 120-83-2 84-66-2 4400 31 00 14000 31 00 3600 12000 1 2000 23000 12000 12000 2,4-Dimethylphenol Dimethylphthalate 4,6-Dinitro-2-methylphen ol 2,4-Dinitrophenol 2,4-Dinitrotoluene 1 05-67-9 1 31-1 1-3 534-52-1 51-28-5 121-14-2 6600 4000 8700 12000 3200 12000 12000 12000 23000 12000 I 2,6-Dinitrotoluene Di-n-octylphthalate Fluoranthene Fluorene Hexachlorobenzene 606-20-2 117-84-0 206-44-O 86-73-7 118-74-1 5600 41 00 4000 2400 2100 12000 12000 12000 12000 1 2000 Hexachlorobutadiene 87-68-3 3900 '12000 U - Not Detected atlhe Reporting Limit (RL) J - Analyte detected below Practical Quantitation Limit (PQL) E - Extrapolated value. See rerun at dilution. B - Anallte detected in the associated Method Blank il- S - Spike Recovery outside accepted recovery limits | - Compound detecte.d above regulatory limit. X - Poor surrogate recovery due to high dilution. /< Qunlifiers: ffi"tyrt Approved I 1/09/2001 2:59 PM I 12000 12000 23000 12000 12000 I Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-6021 Client Sample ID : Lab Sample ID : Date Collected : Date Received : Date Prepared : Date Analyzed : Percent Moisfure : P3C6HSI 0l-6007-01A tr/01/2001 1710212001 tU06l200r tU09/2001 28.51 Client Project ID : Unocal Parachute Lab Work Order : 0l-6007 Sample Matrix : Soil Lab File ID : GCMSI108\3001030.D Method Blank : MB-10506 Prep Factor : 333.1 1125916056 Effective Dilution : 6.99 Method: SW8270C 827OC Hazardous Substance List Units: pS/KS Analyte CAS #Concentration RL POL H exachlorocyclo pentadiene Hexachloroethane lndeno( 1,2, 3-cd)pyrene lsophorone 77-47-4 67-72-1 1 93-39-5 78-59-1 31 00 3300 41 00 2300 1 2000 12000 12000 12000 2-Methylnaphthalene 2-Methylphenol 4-Methylphenol Naphthalene 2-Nitroaniline 2200 7700 5300 2600 4300 12000 12000 12000 12000 12000 91-57-6 95-48-7 106-44-5 91-20-3 88-74-4 U U U U U U U U U U U U U U U U U U U U U U U 3-Nitroaniline 4-Nitroaniline Nitrobenzene 2-Nitrophenol 4-Nitrophenol 99-09-2 100-01-6 98-95-3 88-75-5 100-02-7 51 00 4100 2600 3200 9300 12000 12000 12000 12000 12000 N-Nitrosodiph enylamin e N-Nitrosodipro pylamin e Pentachlorophenol Phenanthrene Phenol 4000 2200 7300 2600 2900 12000 12000 12000 12000 12000 86-30-6 621-64-7 87-86-5 85-01-8 1 08-95-2 Pyrene 1,2,4-Trichlorobenzene 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol 2900 3700 5600 4700 12000 12000 12000 12000 129-00-0 120-82-1 95-95-4 88-06-2 Surrogate Recovery 2-Fluorophenol Phenol-d6 Nitrobenzene-d5 2-Fluorobiphenyl 2,4,6-Tribromophenol Terphenyl-d14 124o/o o% 117% 99% 560/o 104% QC LimitsI - 119 11 - 115 18 - 120 26 - 115 7-129 7-125 SX SX X X X X I U - Not Detected atthe Reporting Limit (RL) J - Analyte detected below Practical Quantitation Limit (PQL) E - Extrapolated value. See rerun al dilution. B - Andvte detected in the associated Melhod Blankb S - Spike Recovery outside accepted recovery limits * - Compound detected above rogulatory limit. X - Poor surrogate recovery due to high dilution. /?,e/Q e.qtifiers: Analyst Approved 1l/09/2001 2:59PM Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-602t Client Sample ID : P3C6GL3 Lab Sample ID : 0l-6007-024 Date Collected : ll/0112001 Date Received : ll/02/2001 Date Prepared z ll/0612001 Date Analyzed : lll07/2001 Percent Moisture : 12.'71 Client Project ID : Unocal Parachute Lab Work Order : 0l-6007 Sample Matrix : Soil Lab Fite ID : GCMSIl0T\1301006.D Method Blank : MB-10506 Prep Factor : 33.178500331785 Effective Dilution : l.14 Method: SW8270C 827OC Hazardous Substance List Units: pg/Kg Analyte CAS #Concentration RL POL Acenaphthene Acenaphthylene Anthracene Benzo(b&k)fl uoranthene Benzo(a)anthracene 26 40 63 120 64 190 190 190 380 190 83-32-9 208-96-8 120-12-7 205-99-2+k 56-55-3 Benzo(a)pyrene Benzo(g,h,i)perylene Benzoic acid Benzyl alcohol Bis(2-chloroethyl)ether 50-32-8 191-24-2 65-85-0 100-51-6 111-44-4 67 66 210 59 57 190 190 380 190 190 Bis(2-chloroethoxy)methane Dlchlorodiisopropyl ether Bis(2-ethyl h exyl ) p hth alate 4-Bromophenyl phenyl ether Butyl benzyl phthalate 29 73 81 75 75 190 190 190 190 190 111-91-1 1 08-60-1 117-81-7 1 01-55-3 85-68-7 190 190 190 190 190 4-Chloroaniline 4-C hloro-3-methylphenol 2-Chloronaphthalene 2-Chlorophenol 4-Chlorophenylphenyl ether 10647-8 59-50-7 91-58-7 95-57-8 7005-72-3 71 82 39 48 56 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 218-01-9 53-70-3 132-64-9 84-74-2 95-50-1 64 t5 43 70 50 190 190 190 190 190 'l ,3-Dichlorobenzene 1 ,4-Dichlorobenzene 3, 3' -Dichlorobenzidine 2,4-Dichlorophenol Diethylphthalate 72 51 230 50 58 190 190 380 190 190 541-73-1 106-46-7 91-94-1 120-83-2 84-66-2 2,4-Dimethylphenol Dimethylphthalate 4,6-Dinitro-2-methylphenol 2,4-Dinitrophenol 2,4-Dinitrotoluene 110 65 140 200 53 190 190 190 380 190 1 05-67-9 131-11-3 534-52-1 51-28-5 121-14-2 2,6-Dinitrotoluene Di-n-octylphthalate Fluoranthene Fluorene Hexachlorobenzene 606-20-2 117-84-0 20644-O 86-73-7 118-74-1 92 66 66 39 34 190 190 190 190 190 Hexachlorobutadiene 87-68-3 64 190 U - Not Detected al the RepoAing Limit (RL) J - Analyte dstectod below Practical Quantitation Limit (PQL) E - Extrapolaled value. See rerun al dilution. B - Andyte detect€d inilre associated Method Blank S - Spike Recovery outside accepted recovery limits t - Compound delected above regulatory limit. X - Not Applicable. il* Quqlifters: Analyst 1 U042001 9:3i AM \ Chrysene Dibenz(a, h)anthracene Dibenzofuran Di-n-butylphthalate 1 ,2-Dichlorobenzene ,oa/< 'A[proved Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-6021 Client Sample ID : P3C6GL3 Lab Sample ID : 0l-6007-02A DateCollected : ll/01/2001 Date Received : ll/02/2001 Date Prepared : 11106/2001 Date Analyzed : lll07l200l Percent Moisture : 12.77 Client Project ID : Unocal Parachute Lab Work Order : 0l-6007 Sample Matrix : Soil Lab File ID : GCMSI107\1301006.D Method Blank : MB-10506 Prep Factor : 33.178500331785 Effective Dilution : 1.14 Method: SW8270C 8270C Hazardous Substance List Units: pg/KS Analyte cAs #Concentration RL PQL H exachlorocyclopentadiene Hexachloroethane lndeno( 1,2,3-cd)pyrene lsophorone 51 53 67 38 190 190 190 190 77-47-4 67-72-1 '193-39-5 78-59-1 2-Methylnaphthalene 2-Methylphenol 4-Methylphenol Naphthalene 2-Nitroaniline 91-57-6 95-48-7 10644-5 91-20-3 88-744 1 36 30 87 43 70 190 190 190 190 190 3-Nitroaniline 4-Nitroaniline Nitrobenzene 2-Nitrophenol 4-Nitrophenol 99-09-2 100-01-6 98-95-3 88-75-5 100-02-7 U U U U U U U U U U U U U U U U U U U U U U U 83 67 42 52 150 190 190 190 190 190 N-Nitrosodiph enylamine N-Nitrosodipropylamine Pentachlorophenol Phenanthrene Phenol 66 36 120 43 47 190 190 190 190 190 86-30-6 621-64-7 87-86-5 85-01-8 '108-95-2 Pyrene 1,2,4-Trichlorobenzene 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol 1 29-00-0 120-82-1 95-95-4 88-06-2 47 61 92 76 190 190 190 190 Surrogate Recovery 2-Fluorophenol Phenol-d6 Nitrobenzene-d5 2-Fluorobiphenyl 2,4,6-Tribromophenol Terphenyl-d14 60o/o 71% 65o/o 65% 58o/o 83% QC Limits 9 - 119 11 - 115 18 - 120 26 - 115 7-129 7-125 U - Not Detected a1lhe Reporting Limit (RL) J - Analyte detected below Prac'tical Quartilation Limil (PQL) E - E:<fapolafed value. See rerun at dilution. B - Analyte detectcd inthe associated Method Blank S - Spiko Recovery outside accepted recovery limits | - Compound detected above regulalory limit. X - Not fuplicable. F Qualiflers: Analyst Approved l1/0U2001 9: ji AM -t I Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-6021 Client Sample ID : P3Cl2GL5 Lab Sample ID : 016007-03A Date Collected : l1/01/2001 Date Received : lll02l200l Date Prepared : ll/06/2001 Date Analyzed : lll07/2007 Percent Moisture : 12.91 Client Project ID : Unocal Parachute Lab Work Order : 0l-6007 Sample Matrix : Soil Lab File ID : GCMSIl0T\1401007.D Method Blank : MB-10506 PrepFactor :33.3333333333333 Effective Dilution : l.14 Method: SW8270C 827OC Hazardous Substance List Units: pS/Kg Analyte CAS #Concentration RL POL Acenaphthene Acenaphthylene Anthracene Benzo( b&k)lluoranthene Benzo(a)anthracene 26 41 64 120 65 190 190 190 380 190 83-32-9 208-96-8 120-12-7 205-99-2+k 56-55-3 190 190 380 190 190 Benzo(a)pyrene Benzo(g,h,i)perylene Benzoic acid Benzyl alcohol Bis(2-chloroethyl)ether 50-32-8 191-24-2 65-85-0 100-51-6 111-444 67 66 t10 60 58 2 Bis(2-chloroethoxy)meth ane Dichlorodiisopropyl ether Bis(2-ethylhexyl)phthalate 4-Bromophenyl phenyl ether Butyl benzyl phthalate 29 74 81 75 75 190 190 190 190 190 111-91-1 108-60-1 117-81-7 101-55-3 85-68-7 4-Chloroaniline 4-Chloro-3-methylphenol 2-Chloronaphthalene 2-Chlorophenol 4-Chloropt enylphenyl ether '106-47-8 59-50-7 91-58-7 95-57-8 7005-72-3 72 83 39 49 57 190 190 190 190 190 Chrysene Dibenz(a, h )anthracene Dibenzofuran Di-n-butylphthalate 1,2-Dichlorobenzene 65 73 43 70 51 190 190 190 190 190 218-01-9 53-70-3 132-64-9 84-74-2 95-50-1 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 1,3-Dichlorobenzene 1,4-Dichlorobenzene 3,3' -Dichlorobenzidine 2,4-Dichlorophenol Diethylphthalate 541-73-1 106-46-7 91-94-1 120-83-2 84-66-2 73 51 230 50 59 190 190 380 190 190 2,4-Dimeth9phenol Dimethylphthalate 4,6-Dinitro-2-methylph enol 2,4-Dinitrophenol 2,4-Dinitrotoluene 10567-9 131-11-3 534-52-1 51-28-5 121-14-2 110 66 140 200 53 190 190 190 380 190 2,6-Dinitrotoluene Di-n-octylphthalate Fluoranthene Fluorene Hexachlorobenzene 606-20-2 117-84-0 20644-0 86-73-7 118-74-1 92 67 oo 39 35 190 190 190 190 190 Hexachlorobutadiene 87-68-3 65 190 U - Not Detec&d atthe Reporting Limit (RL) J - An lyte det€€ted bolow Praaical Quarnftation Limil (PQL) E - E:<trapolated value. See rerun at dilution. B - Andyt€ dstected in the associated Method Blank S - Spike Recovery outside accepted recovery limits * - Compound detected above regulatory limit. X - Not Applicable. ,EAKtL Q ''liffers: Analyst Approved 1 l/08/2001 9:33 AM \ t I Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-6021 Client $ample ID : Lab Sample ID : Date Collected : Date Received : Date Prepared : Date Analyzed : Percent Moisture: P3CI2GL5 0l-6007-03A lt/0r/2001 tu02t200t tt/06t2001 ty0'112001 12.91 Client Project ID : Unocal Parachute Lab Work Order : 0l-6007 Sample Matrix : Soil Lab File ID : GCMSI107\1401007.D Method Blank : MB-10506 Prep Factor : 33.3333333333333 Effective Dilution : 1.14 Method: SW8270C 8270C Hazardous Substance List Units: rc/Kg Analyte CAS #Concentration RL PQL Hexachlo rocyclo pentadiene Hexachloroethane lndeno( 1,2, 3-cd)pyrene lsophorone 77474 67-72-1 1 93-39-5 78-59-1 51 53 68 38 190 190 190 190 2-Methylnaphthalene 2-Methylphenol 4-Methylphenol Naphthalene 2-Nitroaniline 9'1-57-6 95-48-7 1 06-44-5 91-20-3 88-744 37 '130 87 43 71 190 190 '190 190 190 U U U U U U U U U U U U U U U U U U U U U U U 3-Nitroaniline 4-Nitroaniline Nitrobenzene 2-Nitrophenol 4-Nitrophenol 99-09-2 100-01€ 98-95-3 88-75-5 100-02-7 84 67 42 52 150 190 190 190 190 190 N-Nitrosodiphenylamine N-Nitrosodipropylamine Pentachlorophenol Phenanthrene Phenol 86-30-6 621-64-7 87-86-5 85-01-8 1 08-95-2 66 50 20 43 47 1 190 190 190 190 190 Pyrene 1,2,4-Trichlorobenzene 2, 4, 5-Trichlo ro ph en ol 2,4,6-Trichlorophen ol 129-00-0 120-82-1 95-95-4 88-06-2 47 61 92 77 190 190 190 190 Surrogate Recovery 2-Fluorophenol Phenol-d6 Nitrobenzene-d5 2-Fluorobiphenyl 2,4,6-Tribromophenol Terphenyl-d14 52% 60o/o 56% 63o/o 67o/o 76o/o QC Limits 9 - 119 11 - 115 18 - 120 26 - 115 7-129 7-125 U - Not Dctected atthe Reporting Limit (RL) J - Analyt€ dctected below Practical Quantitation Limit (PQL) E - Extrapolated value. Seo rerun at dilution B - Analvte detectcd in the associarcd Method Blark tb S - Spike Recovery outside accepted rccovery limits * - Compound detected above regulatory limit. X - Not Applicabie. Quqlilier:s: Analyst Approved 1 l/08/2001 9:33 AM Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-6021 Client Sample ID : P3Cl lHS2 Lab Sample ID : 0l-6007-04A DateCollected : ll/01/2001 Date Received : lll02l200l Date Prepared : 11106/2001 Date Analyzed : ll/09/200l Client Project ID : Unocal Parachute Lab Work Order : 0l-6007 Sample Matrix : Soil Lab File ID : GCMSll0S\3101031.D Method Blank : MB-10506 PrepFactor :333.333333333333 Effective Dilution : 6.08Percent Moisture : 17.85 Method: SW8270C 8270C Hazardous Substance List Units: pg/Kg Analyte CAS #Concentration RL POL Acenaphthene Acenaphthylene Anthracene Benzo(b&k)fl uoranthene Benzo(a)anthracene 1 400 2200 3400 6200 3400 1 0000 1 0000 1 0000 20000 1 0000 83-32-9 208-96-8 120-12-7 205-99-2+k 56-55-3 Benzo(a)pyrene Benzo(g,h,i)perylene Benzoic acid Benzyl alcohol 3600 3500 1 1000 3200 3100 1 0000 1 0000 20000 1 0000 1 0000Bis(2-chloro ethyl)ether 50-32-8 191-24-2 65-85-0 100-51-6 111-44-4 Bis(2-chloroeth oxy)methan e Dichlorodiisopropyl ether Bis(2-ethylheryl)phth alate 4-Bromophenyl phenyl ether Butyl benzyl phthalate 1 500 3900 4300 4000 4000 1 0000 1 0000 1 0000 1 0000 '10000 111-91-1 1 08-60-1 117-81-7 1 01 -55-3 85-68-7 4-Chloroaniline 4-Chloro-3-methylphenol 2-Chloronaphthalene 2-Chlorophenol 4-Chlorophenyl ether Chrysene Dibenz(a, h)anthracene Dibenzofuran Di-n-butylphthalate 1,2-Dichlorobenzene 3400 3900 2300 3700 2700 't0000 1 0000 1 0000 1 0000 1 0000 106-47-8 59-50-7 91-58-7 95-57-8 7005-72-3 218-01-9 53-70-3 132-64-9 84-74-2 95-50-'t 3800 4400 2100 2600 3000 1 0000 1 0000 '10000 1 0000 1 0000 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 1,3-Dichlorobenzene 1,4-Dichlorobenzene 3,3' -Dichlorobenzidine 2,4-Dichlorophenol Diethylphthalate 541-73-1 106-46-7 91-94-1 120-83-2 84-66-2 3900 2700 12000 2700 31 00 1 0000 1 0000 20000 1 0000 1 0000 2,4-Dimethylphenol Dimethylphthalate 4, 6-Dinitro-2-m ethylphenol 2,4-Dinitrophenol 2,4-Dinitrotoluene 5800 3500 7600 11000 2800 1 0000 1 0000 1 0000 20000 1 0000 1 05-67-9 1 31-1 'l -3 534-52-1 51-28-5 121-14-2 2,6-Dinitrotoluene Di-n-octylphthalate Fluoranthene Fluorene Hexachlorobenzene 4900 3500 3500 2100 1 800 1 0000 1 0000 1 0000 1 0000 1 0000 606-20-2 117-84-O 20644-0 86-73-7 118-74-1 Hexachlorobutadiene 87-68-3 3400 1 0000 U - Not Detected at the Reporting Limit (RL) J - Analyte detected below Practical Quantilation Limit (PQL) E - Extrapolated value. See rerun at dilution. B - Analle detected in the associaled Method Blank .h_ t,' S - Spike Recovery outside accepted recovery limits | - Compound detected above regulatory limit. X - Poor surrogate recovery due to high dilution. IPA,K Qualifiers: Analyst Approved 11/09/2001 3:10PM I \ I I Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-6021 Client Sample ID : P3CllHS2 Lab Sample ID : 01-6007-04A Date Collected : lll0ll200l Date Received : lll02l200l Date Prepared : 7110612001 Date Analyzed : 1110912001 Percent Moisture : 17.85 Client Project ID : Unocal Parachute Lab Work Order : 0l-6007 Sample Matrix : Soil Lab File ID : GCMSll08\3101031.D Method Blank : MB-10506 PrepFactor :333.333333333333 Effective Dilution : 6.08 Method: SW8270C 8270C Hazardous Substance List Units: pg/Kg Analyte CAS #Concentration RL PQL H exachlorocyclopentadiene Hexachloroethane lndeno( 1,2,3-cd)pyrene lsophorone 77-474 67-72-1 1 93-39-5 78-59-1 2700 2800 3600 2000 1 0000 1 0000 1 0000 1 0000 2-Methylnaphthalene 2-Methylphenol 4-Methylphenol Naphthalene 2-Nitroaniline 1 900 6700 4600 2300 3800 1 0000 1 0000 1 0000 1 0000 1 0000 91-57-6 95-48-7 1 06-44-5 91-20-3 88-74-4 U U U U U U U U U U U U U U U U U U U U U U U 3-Nitroaniline 4-Nitroaniline Nitrobenzene 2-Nitrophenol 4-Nitrophenol 99-09-2 100-01-6 98-95-3 88-75-5 100-02-7 4400 3600 2200 2800 81 00 1 0000 '10000 1 0000 1 0000 1 0000 N-Nitrosodiphenylamine N-Nitrosodipropylamin e Pentachlorophenol Phenanthrene Phenol 3500 1 900 6300 2300 2500 1 0000 1 0000 1 0000 1 0000 1 0000 86-30-6 621-64-7 87-86-5 85-0 1 -8 1 08-95-2 Pyrene 1,2,4-Trichlorobenzene 2,4,5-Trichlorophenol 129-00-0 120-82-1 95-95-4 88-06-2 2500 3200 4900 41 00 1 0000 1 0000 1 0000 1 0000,6-Trichlo enol Surrogate 2-Fluorophenol Phenol-d6 Nitrobenzene-d5 2-Fluorobiphenyl 2,4,6-Tribromophenol Terphenyl-d14 1O2o/o 0o/o 98% 97o/o 47% 98% X SX X X X X QC LimitsI - '119 11 - 115 18 - 120 26 - 115 7-129 7-125 U - Not Detected at rhe Reporting Limit (RL) J - Anelyte detecled below Practical Quanlilalion Limit (PQL) E - Extrapolated value. See rErun at dilution. B - Analyte detected inlhe associaled Metrod Blank h S - Spike Recovery outside accepted recovery limits * - Compound detected above regulatory limit. X - Poor surrogale recovery due to high dilution. nbK Qrrelifis13; Analyst Approved 11/09/2001 3:l0PM I Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-6021 Client Sample ID : P3CllGL8 Lab Sample ID : 0l-6007-054 DateCollected : ll/01/2001 Date Received : ll/02/2001 Date Prepared : ll/0612001 Date Analyzed : lll07l200l Percent Moisture : 13.02 Client Project ID : Unocal Parachute Lab Work Order : 0l-6007 Sample Matrix : Soil Lab File ID : GCMSI107\1601009.D Method Blank : MB-10506 Prep Factor : 33.0906684315023 Effective Dilution : 1.14 Method: SW8270C 827OC Hazardous Substance List Units:pg/Kg Analyte CAS #Concentration RL PQL t I .J Acenaphthene Acenaphthylene Anthracene Benzo(b&k)fl uoranthene Benzo(a)anthracene 26 40 63 120 64 190 190 190 380 190 83-32-9 208-96-8 120-12-7 205-99-2+k 56-5s-3 Benzo(a)pyrene Benzo(g,h,i)perylene Benzoic acid Benzyl alcohol Bis(2-chloroethyl)eth er 50-32-8 191-24-2 65-85-0 100-51-6 111-44-4 2 67 66 t10 59 57 190 190 380 190 190 Bis(2-chlo roethoxy)methan e Dichlorodiisopropyl ether Bis(2-ethylhexyl)phthalate 4-Bromophenyl phenyl ether Butyl benzyl phthalate 29 74 81 75 75 190 190 190 190 190 1 1 1-91-1 1 08-60-1 117-81-7 101-55-3 85-68-7 4-Chloroaniline 4-Chloro-3-methylphen ol 2-Chloronaphthalene 2-Chlorophenol 4-Chlorophenylphenyl ether 72 82 39 48 56 190 190 190 190 190 10647-8 59-50-7 91-58-7 95-57-8 7005-72-3 Chrysene Dibenz(a, h)anthracene Dibenzofuran Di-n-butylphthalate 1,2-Dichlorobenzene 64 73 43 70 50 190 190 190 190 '190 218-01-9 53-70-3 132-64-9 84-74-2 95-50-1 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U (r 1,3-Dichlorobenzene 1,4-Dichlorobenzene 3, 3' -Dichlorobenzidine 2,4-Dichlorophenol Diethylphthalate 72 51 230 50 58 190 190 380 190 190 541-73-1 106-46-7 91-94-1 120-83-2 84-66-2 2,4-Dimethylphenol Dimethylphthalate 4, 6-Dinitro-2-m ethylphenol 2,4-Dinitrophenol 2,4-Dinitrotoluene 110 65 140 200 53 190 190 190 380 190 1 05-67-9 131-1 1-3 534-52-1 51-28-5 121-14-2 2,6-Dinitrotoluene Di-n-oc$phthalate Fluoranthene Fluorene Hexachlorobenzene 606-20-2 117-84-0 20644-0 86-73-7 118-74-1 92 66 66 39 34 190 190 190 190 190 Hexachlorobutadiene 87-68-3 64 190 U - Not Dstlcted al the Reporting Limit (RL) J - Analyte detected below Practical Quantitation Limit (PQL) E - Extrapolated value. See rerun al dilution. B - tualyte dste*a i.ffi*iated MethodBlank S - Spike Recovery outside accepted recovery limits * - Compound detected above regulatory limit. X - Not Applicable. /ue Q.qtifiers: Analyst Approved I l/0U2001 9:33 AM I I Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 425-6021 Client Sample ID : Lab Sample ID : Date Collected : Date Received : Date Prepared : Date Analyzed : P3CI IGL8 0l-6007-05A tU0U200r tU02t200t tu06t200t 7t/07t2001 t3.02PercentMoisture: Client Project [D : Unocal Parachute Lab Work Order : 0l-6007 Sample Matrix : Soil Lab File ID : GCMSl107\1601009.D Method Blank : MB-10506 Prep Factor : 33.0906684315023 Effective Dilution : 1.14 Method: SW8270C 827OC Hazardous Substance List Units: pg/KS Analyte CAS #Concentration RL POL Hexachlo rocyclopentadien e Hexachloroethane lndeno( 1,2, 3-cd)pyrene lsophorone 77-474 67-72-1 1 93-39-5 78-59-1 51 53 ot 38 190 190 190 190 2-Methylnaphthalene 2-Methylphenol 4-Methylphenol Naphthalene 2-Nitroaniline 36 130 87 43 70 190 190 190 190 190 91-57-6 9548-7 10644-5 91-20-3 88-74-4 U U U U U U U U U U U U U U U U U U U U U U U 3-Nitroaniline 4-Nitroaniline Nitrobenzene 2-Nitrophenol 4-Nitrophenol 99-09-2 100-01-6 98-95-3 88-75-5 100-02-7 83 67 42 52 150 190 190 190 190 190 N-Nitrosodiphenylamin e N-Nitrosodipro pylamin e Pentachlorophenol Phenanthrene Phenol 86-30-6 621-64-7 87-86-5 85-01-8 1 08-95-2 bb 36 120 43 47 190 190 190 190 190 Pyrene 1,2,4-Trichlorobenzene 2,4, 5-Trichlorophenol 2,4,6-Trichlorophenol 129-00-0 120-82-1 95-95-4 88-06-2 47 61 92 76 190 190 190 190 Surrogate Recovery 2-Fluorophenol Phenol-d6 Nitrobenzene-d5 2-Fluorobiphenyl 2,4,6-Tribromophenol Terphenyl-d14 61o/o 64% 69o/o 67o/o 75% 83% QC Limits 9 - 119 11 - 115 18 - 120 26 - 115 7-129 7-125 l2 U - Not Detected atlhe Reporting Limit (RL) J - Analyte dct cted below Practical Quantitation Limit (PQL) E - Extrapolaled value. See rerun at dilution. B - Analyte detected the associated Method Blank S - Spike Recovery outside aocepted recovery limits I - Compound detecled above regulatory limit. X - Not Applicable. Qrrdiffels: Analyst Approved 11/0U2001 9:33 AM I P*r Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-6021 Client Sample ID : Lab Sample ID : Date Collected : Date Received : Date Prepared : Date Analyzed : Percent Moisture : P3CIOHS3 0l-6007-06A tU0U200l 1t/0212001 tt/06t2001 tU09l200r 17.05 Client Project ID : Unocal Parachute Lab Work Order : 0l-6007 Sample Matrix : Soil Lab File ID : GCMSIl08\3201032.D Method Blank : MB-10506 Prep Factor z 165.72754391'7199 Effective Dilution : 1.2 Method: SW8270C 827OC Hazardous Substance List Units: US/Kg Analyte CAS #Concentration RL PQL 130 210 330 610 340 Acenaphthene Acenaphthylene Anthracene Benzo(b&k)fl uoranthene Benzo(a)anthracene 83-32-9 208-96-8 120-12-7 205-99-2+k 56-5s-3 990 990 990 2000 990 Benzo(a)pyrene Benzo(g,h,i)perylene Benzoic acid Benzyl alcohol Bis(2-chlo roethyl)ether 50-32-8 191-24-2 65-85-0 100-51-6 111-444 350 350 1 100 310 300 990 990 2000 990 990 Bis(2-chlo roeth oxy)methane Dichlorodiisopropyl ether Bis(2-ethylh exyl)phthalate 4-Bromophenyl phenyl ether Butyl benzyl phthalate 111-91-1 1 08-60-1 117 -81-7 1 01 -55-3 85-68-7 990 990 990 990 990 150 390 420 390 390 4-Chloroaniline 4-Chlo ro-3-methyl phen ol 2-Chloronaphthalene 2-Chlorophenol 4-Chlorophenylphenyl ether 106-47-8 59-50-7 91-58-7 9s-57-8 7005-72-3 380 430 200 250 300 990 990 990 990 990 Chrysene Dlbenz(a, h)anth racene Dibenzofuran Di-n-butylphthalate 1,2-Dichlorobenzene 218-01-9 53-70-3 132-64-9 84-74-2 95-50-1 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 990 990 990 990 990 1,3-Dichlorobenzene 1,4-Dichlorobenzene 3, 3'-Dichlorobenzidine 2,4-Dichlorophenol Diethylphthalate 541-73-1 106-46-7 91 -94-1 120-83-2 84-66-2 380 270 1200 260 3'10 990 990 2000 990 990 2,4-Dimethylphenol Dimethylphthalate 4,6-Dinitro-2-m ethylphen ol 2,4-Dinitrophenol 2,4-Dinitrotoluene 1 05-67-9 1 31-1 1-3 534-52-1 51-28-5 121-14-2 570 340 750 1 100 280 990 990 990 2000 990 2,6-Dinitrotoluene Di-n-octylphthalate Fluoranthene Fluorene Hexachlorobenzene 480 350 350 200 180 990 990 990 990 990 606-20-2 117-84-0 20644-0 86-73-7 118-74-1 Hexachlorobutadiene 87-68-3 340 990 U - Not Detrctld at the Reporting Limit (RL) J - Analyte detected below Praclical Quantitation Limit (PQL) E - Extrapolated value. See rerun at dilution. B - Analvte det€cted inthe associated Method Blank't tb S - Spike Recovery outside accepted recovery limits * - Compound detected above regulatory limit. X - Not Applicable. N*tc Qualifiers: Analyst Approved 11/09/2001 4:01 PM 340 380 220 370 260 Client Sample ID : Lab Sample ID : Date Collected : Date Received : Date Prepared : Date Analyzed : Percent Moisture P3CIOHS3 0l-6007-064 tu0r/200t rU02t200t Lu06t200t tU09/2001 17.05 Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 425-6021 Client Project ID : Unocal Parachute Lab Work Order : 0l-6007 Sample Matrix : Soil Lab File ID : GCMSI108\3201032.D Method Blank : MB-10506 Prep Factor : 165.72'754391'7799 Effective Dilution : 1.2 ) Method: SW8270C 827OC Hazardous Substance List Units: pg/Kg Analyte CAS #Concentration RL POL Hexachlorocyclopentadien e Hexachloroethane lndeno( 1,2, 3-cd)pyrene lsophorone 77474 67-72-1 1 93-39-5 78-59-1 270 280 350 200 990 990 990 990 2-Methylnaphthalene 2-Methylphenol 4-Methylphenol Naphthalene 2-Nitroaniline 91-57-6 95-48-7 10644-5 91-20-3 88-74-4 I 190 660 460 220 370 990 990 990 990 990 3-Nitroaniline 4-Nitroaniline Nitrobenzene 2-Nitrophenol 4-Nitrophenol 99-09-2 100-01-6 98-95-3 88-75-5 100-02-7 U U U U U U U U U U U U U U U U U U U U U U U 990 990 990 990 990 440 350 220 270 800 N-Nitrosodiphenylamine N-Nitrosodipropylamine Pentachlorophenol Phenanthrene Phenol 340 190 620 230 240 990 990 990 990 990 86-30-6 621-64-7 87-86-5 85-01-8 1 08-95-2 Pyrene 1,2,4-Trichlorobenzene 2,4, 5-Trichlorophenol 2,4,6-Trichlorophenol 250 320 480 400 990 990 990 990 Surrogate Recovery 2-Fluorophenol Phenol-d6 Nitrobenzene-d5 2-Fluorobiphenyl 2,4,6-Tribromophenol Terphenyl-d14 87% 72% 91% 87% 67o/o 92o/o QG Limits 9 - 119 11 - 115 18 - 120 26 - 115 7-129 7-125 U - Not Detected at the Reporting Limit (RL) J - Analyte detected below Practical Quantitation Limit (PQL) E - Extrapolated value. See rerun at dilution. B - Arnlyte detected [p the associated Method Blark tA S - Spike Recovery outside accepted recovery limits * - Compound detected above regulalory limit. X - Not Applicable. ,,QA K Qualiliers: Analyst Approved 1 l/09/2001 4:01 PM I 129-00-0 120-82-1 95-95-4 88-06-2 Client Sample ID : P3C10GL3 Lab Sample ID : 0l{007-074 Date Collected : lll01/2001 Date Received : ll/02/2001 DatePrepared : 111061200l Date Analyzed : lll0'712001 Percent Moisture : 10.82 Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-6021 Client Project ID : Unocal Parachute Lab Work Order : 0l-6007 Sample Matrix : Soil Lab File ID : GCMSll0T\1801011.D Method Blank : MB-10506 Prep Factor : 33.255'736614566 Effective Dilution : l. 12 Method: SW8270C 827OC Hazardous Substance List Units: pg/KS Analyte CAS #Concentration RL PQL Acenaphthene Acenaphthylene Anthracene Benzo(b&k)fl uoranthene Benzo(a)anthracene 25 40 62 110 63 190 190 190 370 190 83-32-9 208-96-8 120-12-7 205-99-2+k 56-55-3 Benzo(a)pyrene Benzo(g,h,i)perylene Benzoic acid Benzyl alcohol Bis(2-chloroethyl)ether 50-32-8 191-24-2 65-85-0 100-51-6 111444 65 64 210 58 56 190 190 370 190 190 Bis(2-chloroeth oxy)methane Dichlorodiisopropyl ether Bis(2-ethylhexyl)phth alate 4-Bromophenyl phenyl ether Butyl benzyl phthalate 28 72 79 73 74 190 190 190 190 190 111-91-1 1 08-60-1 117-81-7 101-55-3 85-68-7 4-Chloroaniline 4-Chlo ro-3-methylphen ol 2-Chloronaphthalene 2-Chlorophenol 4-Chlorophenylphenyl ether 70 80 38 47 55 190 190 190 190 190 10647-8 59-50-7 91-58-7 95-57-8 7005-72-3 Chrysene Dibenz(a, h)anthracene Dibenzofuran Di-n-butylphthalate 1,2-Dichlorobenzene 63 71 42 68 49 190 190 190 190 190 218-01-9 53-70-3 132-64-9 84-74-2 95-50-1 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 1,3-Dichlorobenzene 1,4-Dichlorobenzene 3, 3' -Dichlorobenzidine 2,4-Dichlorophenol Diethylphthalate 71 50 220 49 57 190 190 370 190 190 541-73-1 106-46-7 91-94-1 120-83-2 84-66-2 2,4-Dimethylphenol Dimethylphthalate 4,6-Dinitro-2-methylphenol 2,4-Dinitrophenol 2,4-Dinitrotoluene 110 64 140 200 52 190 190 190 370 190 1 05-67-9 1 31-1 1-3 534-52-1 51-28-5 121-14-2 2,6-Dinitrotoluene Di-n-octylphthalate Fluoranthene Fluorene Hexachlorobenzene 606-20-2 117-84-O 206-44-0 86-73-7 118-74-1 90 65 65 38 34 190 190 190 190 190 Hexachlorobutadiene 87-68-3 63 190 U - Not Detecled allhe Reporting Limit (RL) J - Analyte detected below Practical Quantitation Limit (PQL) E - Extrapolaled value. See rerun at dilution. B - Analvte detected in the associaled Method Blank /" S - Spike Recovery outside accepted recovery limits * - Compound detected above regulatory limit X - Not Applicable. fifr-/t Quallffers: Analyst Approved l1/08/2001 9:334M I Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-6021 Client Sample ID : P3Cl0GL3 Lab Sample ID : 0l-6007-07A DateCollected : l1101/2001 Date Received : ll/02/2001 Date Prepared : 11106/2001 Date Analyzed : lll0'7/2001 Percent Moisture : 10.82 Client Project ID : Unocal Parachute Lab Work Order : 0l-6007 Sample Matrix : Soil Lab File ID : GCMSll0T\1801011.D Method Blank : MB-10506 PrepFactor :33.255736614566 Effective Dilution : l.12 Method: SW8270C 827OC Hazardous Substance List Unils: lrg/l S Analyte CAS #Goncentration RL IQL Hexachlorocyclopentadien e Hexachloroethane lndeno( 1,2,3-cd)pyrene lsophorone 7747-4 67-72-',1 1 93-39-5 78-59-1 50 52 66 37 90 90 90 90 .t 2-Methylnaphthalene 2-Methylphenol 4-Methylphenol Naphthalene 2-Nitroaniline 91-57-6 95-48-7 10644-5 91-20-3 88-744 36 120 85 42 69 i90 190 190 190 190 U U U U U U U U U U U U U U U U U U U U U U U 3-Nitroaniline 4-Nitroaniline Nitrobenzene 2-Nitrophenol 4-Nitrophenol 99-09-2 100-01-6 98-95-3 88-75-5 100-02-7 82 66 41 5'r 150 '190 190 190 190 190 N-Nitrosodiphenylamine N-Nitrosodipro pylamin e Pentachlorophenol Phenanthrene Phenol 86-30-6 621-64-7 87-86-5 85-01-8 1 08-9s-2 190 190 190 190 190 Pyrene 1,2,4-Trichlorobenzene 2,4, 5-Trichlorophenol 2,4,6-Trichlorophenol 1 29-00-0 120-82-1 95-95-4 88-06-2 46 59 90 75 190 190 190 190 Surrogate Recovery 2-Fluorophenol Phenol-d6 Nitrobenzene-d5 2-Fluorobiphenyl 2,4,6-Tribromophenol Terphenyl-d14 65% 72% 7 1o/o 73o/o 82o/o 92o/o QC Limits 9 - 119 11 - 115 18 - 120 26 - 115 7-129 7-125 U - Not Detected at thc Reporting Limit (RL) J - Analyte detected below Practical Quartitalion Limit (PQL) E - Extrapolated value. See renrn at dilution. S - Spike Recovery outside accepted recovery limils * - Compound detected above regulatory limi1. X - Not Applicable. QrrellIl6l3; B - Analyte detected in the associated Method Blank Approved 1 l/08/2001 9:33 AM I i l 64 35 120 42 46 I i lnalyst Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-6021 Client Sample ID : P3C8GL5 Lab Sample ID : 0l-6007-08A Date Collected : ll/0112001 Date Received : ll/0212001 Date Prepared : 11106/2001 Date Analyzed : ll/09/2001 Percent Moisture : 8.5 Client Project ID : Unocal Parachute Lab Work Order : 0l-6007 Sample Matrix : Soil Lab File ID : GCMS1108\1401014.D Method Blank : MB-10506 PrepFactor : 33.255736674566 Effective Dilution : 1.09 Method: SW8270C 8270C Hazardous Substance List Units: pg/Kg Analyte CAS #Concentration RL PQL Ir Acenaphthene Acenaphthylene Anthracene Benzo(b&k)fl uoranthene Benzo(a)anthracene 24 39 61 110 62 180 180 180 360 180 83-32-9 208-96-8 120-12-7 205-99-2+k 56-55-3 Benzo(a)pyrene Benzo(g,h,i)perylene Benzoic acid Benzyl alcohol Bis(2-chloroethyl)ether 50-32-8 191-24-2 65-85-0 'l 00-51 -6 111-44-4 64 63 200 57 55 Bis(2-chloroethoxy)methane Dichlorodiisopropyl ether Bis(2-ethylh exyl) phth alate 4-Bromophenyl phenyl ether Butyl benzyl phthalate 27 70 77 71 72 180 180 180 180 180 111-91-1 1 08-60-1 117-81-7 101-55-3 85-68-7 4-Chloroaniline 4-Chloro-3-m ethylphenol 2-Chloronaphthalene 2-Chlorophenol 4-Chlorophenylphenyl ether 106-47-8 59-50-7 91-58-7 95-57-8 7005-72-3 68 78 37 46 54 180 180 180 180 180 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Chrysene Dibenz(a, h)anthracene Dibenzofuran Di-n-butylphthalate 1,2-Dichlorobenzene 2'r8-01-9 53-70-3 132-64-9 84-74-2 95-50-1 61 69 41 66 48 180 180 180 180 180 I 1,3-Dichlorobenzene 1,4-Dichlorobenzene 3, 3' -Dichlorobenzidine 2,4-Dichlorophenol Diethylphthalate 69 49 220 48 56 180 180 360 180 180 541-73-1 106-46-7 91-94-1 120-83-2 84-66-2 2,4-Dimethylphenol Dimethylphthalate 4,6-Dinitro-2-m ethylphenol 2,4-Dinitrophenol 2,4-Dinitrotoluene 100 62 140 190 51 180 180 180 360 180 1 05-67-9 1 31-1 1-3 534-52-1 51-28-5 121-14-2 I 2,6-Dinitrotoluene Di-n-octylphthalate Fluoranthene Fluorene Hexachlorobenzene 606-20-2 117-84-O 206-44-0 86-73-7 118-74-1 88 63 63 37 33 '180 180 '180 180 180 Hexachlorobutadiene 87-68-3 62 180 U - Not Detected at the Reporting Limit (RL) J - Anallte del€cted below Practical Quantitalion Limit (PQL) E - Extrapolated value. See renrn at dilution. B - Analvte daected in f,re associated Melhod Blank' i/Lv S - Spike Recovery outside accepted recovery limits t - Compound detected above regulatory limit. X - Not Applicable. r€4lL Qualifters: Analyst Approved 1 l/09/2001 2:54 Ptl 180 180 360 180 180 ,l I I Client Sample ID : P3C8GL5 Lab Sample ID : 0l-6007-08A Date Collected : lll0l/20D1 Date Received : ll/02/2001 DatePrepared : 111061200l Date Analyzed : lll09/2001 Percent Moisture : 8.5 Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-6021 Client Project ID : Unocal Parachute Lab Work Order : 0l-6007 Sample Matrix : Soil Lab File ID : GCMSll08\1401014.D Method Blank : MB-10506 PrepFactor :33.255736614566 Effective Dilution : 1.09 Method: SW8270C 8270C Hazardous Substance List Units: lrS/KS CAS #Concentration RL PQL Hexachlorocyclopentadiene Hexachloroethane lndeno(1,2,3-cd)pyrene lsophorone 49 51 64 36 180 180 180 180 77-47-4 67-72-1 1 93-39-5 78-59-1 N 2-Methylnaphthalene 2-Methylphenol 4-Methylphenol Naphthalene 2-Nitroaniline 35 120 83 41 67 180 180 180 180 180 91-57-6 95-48-7 106-44-5 91-20-3 88-744 U U U U U U U U U U U U U U U U U U U U U U U 3-Nitroaniline 4-Nitroaniline Nitrobenzene 2-Nitrophenol 4-Nitrophenol 99-09-2 100-01-6 98-95-3 88-75-5 100-02-7 80 64 40 50 140 180 180 180 180 180 N-Nitrosodiph enylamine N-Nitrosodipropylamine Pentachlorophenol Phenanthrene Phenol 63 34 110 41 44 180 180 180 180 180 86-30-6 621-64-7 87-86-5 85-0'l-8 1 08-95-2 Pyrene 1,2,4-T richloro benzene 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol 45 58 88 73 180 180 180 180 129-00-0 120-82-1 95-95-4 88-06-2 Surrogate Recovery 2-Fluorophenol Phenol-d6 Nitrobenzene-d5 2-Fluorobiphenyl 2,4,6-Tribromophenol Terphenyl-d14 59% 79o/o 62% 67% 69% 87o/o QC Limits 9 - 119 11 - 115 18 - 120 26 - 115 7-129 7-125 \ i il U - Not Detected at the Reporting Limit (RL) J - Analyte detected below Practical Quarflitation Limit (PQL) E - Extrapolated value. See rerun at dilution. B - Analvte detectcd in the associa&d Method Blankt S - Spike Recovery outside accepted rocovery limits * - Compound detected above regulatory limit. X - Not Applioable. Qualiliers: Analyst Approved l1/09/2001 2:54 PM Analyte ,(*t< Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-6021 !Client Sample ID : P3C7GL7 Lab Sample ID : 0l-6007-09A Date Collected : lll0ll200l Date Received : ll/0212001 Date Prepared : 111061200l Date Analyzed : 11/0912001 Percent Moisture : I l.18 Client Project ID : Unocal Parachute Lab Work Order : 0l-6007 Sample Matrix : Soil Lab File ID : GCMSI108\1501015.D Method Blank : MB-10506 PrepFactor :33.255736614566 Effective Dilution : l.12 Method: SW8270C 8270C Hazardous Substance List Units: pg/Kg CAS #PQLConcentration Acenaphthene Acenaphthylene Anthracene Benzo(b&k)fl uoranthene Benzo(a)anthracene 25 40 62 110 63 190 190 190 370 190 83-32-9 208-96-8 120-12-7 205-99-2+k 56-55-3 Benzo(a)pyrene Benzo(g,h,i)perylene Benzoic acid Benzyl alcohol Bis(2-chloroethyl)eth er 50-32-8 191-24-2 65-85-0 100-51-6 111-44-4 66 65 10 59 56 2 190 '190 370 190 190 Bis(2-chlo roethoxy)methane Dichlorodiisopropyl ether Bis(2-ethylhexyl)phthalate 4-Bromophenyl phenyl ether Bu$ benzyl phthalate 111-91-1 1 08-60-1 117-81-7 101-55-3 85-68-7 28 72 80 73 74 190 190 190 190 190 4-Chloroaniline 4-C hloro-3-methylph enol 2-Chloronaphthalene 2-Chlorophenol 4-Chlorophenylphenyl ether 106-47-8 59-50-7 91-58-7 95-57-8 7005-72-3 70 81 38 47 55 190 190 190 190 190 Chrysene Dibenz(a, h)anthracene Dibenzofuran Di-n-butylphthalate 1,2-Dichlorobenzene 63 72 42 68 49 190 190 190 190 190 218-O1-9 53-70-3 132-64-9 84-74-2 9s-50-1 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U I { 1 ,3-Dichlorobenzene 1 ,4-Dichlorobenzene 3, 3'-Dichlorobenzidine 2,4-Dichlorophenol Diethylphthalate 190 190 370 190 190 541-73-1 106-46-7 91-94-1 120-83-2 84-66-2 2,4-Dimethylphenol Dimethylphthalate 4, 6-Dinitro-2-methylphen ol 2,4-Dinitrophenol 2,4-Dinitrotoluene 110 64 140 200 52 190 190 190 370 190 1 05-67-9 131-11-3 534-52-1 51-28-5 121-14-2 2,6-Dinitrotoluene Di-n-octylphthalate Fluoranthene Fluorene Hexachlorobenzene 606-20-2 117-84-0 20644-0 86-73-7 118-74-1 90 65 65 38 34 190 190 190 190 190 Hexachlorobutadiene 87-68-3 63 190 U - Not Detected at the Reporting Limit (RL) J - Analyte detected below Practical Quantitation Limil (PQL) E - Extrapolaled value. See rerun at dilution. B - Analvte detected in the associaled Method Blank't lI^I S - Spike Recovery outside accepted recovery limits r - Compound detected above regulatory limit. X - Not Applicable. Qualifiers: Analyst Approved 1 1/09/2001 2:54 PM 71 50 220 49 57 Client Sample ID : P3C7GL7 Lab Sample ID : 0l-6007-09A DateCollected : lll01/2001 Date Received : lll02/2001 Date Prepared : ll/06/2001 Date Analyzed : lll09l200l Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-6021 Client Project ID : Unocal Parachute Lab Work Order : 01-6007 Sample Matrix : Soil Lab F'ile ID : GCMSI108\1501015.D Method Blank : MB-10506PrepFactor :33.255736614566 Effective Dilution : L12Percent Moisture :11.18 Method: SW8270C 827OC Hazardous Substance List Units: Ig/Kg Analyte cAs #Concentration RL POL H exachlorocyclopentadiene Hexachloroethane lndeno( 1,2,3-cd)pyrene lsophorone 77-474 67-72-1 1 93-39-5 78-59-1 50 52 66 37 190 190 190 '190 U U U U 2-Methylnaphthalene 2-Methylphenol 4-Methylphenol Naphthalene 2-Nitroaniline 91-57-6 95-48-7 106-44-5 91-20-3 88-74-4 50 36 20 85 42 69 190 190 190 190 190 1 3-Nitroaniline 4-Nitroaniline Nitrobenzene 2-Nitrophenol 4-Nitrophenol 99-09-2 100-01-6 98-95-3 88-75-5 10a-02-7 J U U U U U U U U U U U U U U U U U U 82 66 41 51 150 190 190 190 190 190 N-Nitrosodiph enylamine N-Nitrosodipropylamine Pentachlorophenol Phenanthrene Phenol 86-30-6 621-64-7 87-86-5 85-01-8 1 08-95-2 65 35 120 42 46 190 190 190 190 190 Pyrene 1,2,4-Trichlorobenzene 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol 129-00-0 120-82-1 95-95-4 88-06-2 46 60 90 75 190 190 190 190 Surrogate Recovery 2-Fluorophenol Phenol-d6 Nitrobenzene-d5 2-Fluorobiphenyl 2,4,6-Tribromophenol Terphenyl-d14 62% 78% 66% 69% 64% 86% QC Limits 9 - 119 11 - 115 18 - 120 26 - 115 7-129 7-125 U - Not Delected at the Reporting Limit (RL) J - Analyte detected below Practical Quanlitalion Limit (PQL) E - Extrapolaled value. See rerun at dilution. B - Anallt detected in the associated Method Blank tl' S - Spike Recovery oulside accepted recovery limits t - Compound detected above regulalory limit X - No1 Applicable. trAK Qualiliers Analyst Approved 1 1/09/2001 2:51 PM D I i I Client Sample ID : Lab Sample ID : Date Collected i Date Received : Date Prepared : Date Analyzed : Percent Moisture : P3CIGL6 01-6007-t0A LU0y200t tU02l200t tU06t200t 1U0912001 I1.59 Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-6021 Client Proiect ID : Lab Work Order : Sample Matrix Lab File II) Method Blank Prep Factor : Effective Dilution : Unocal Parachute 0l-6007 Soil GCMSI108\1601016.D MB-10506 33.0906684315023 l. l3 Method: SW8270C 8270C Hazatdous Substance List Units: Fg/Kg Analyte CAS #Concentration RL PQL Acenaphthene Acenaphthylene Anthracene Benzo(b&k)fl uoranthene Benzo(a)anthracene 25 40 62 110 63 190 190 190 370 190 83-32-9 208-96-8 120-12-7 205-99-2+k 56-55-3 Benzo(a)pyrene Benzo(g,h,i)perylene Benzoic acid Benzyl alcohol Bis(2-chloroethyl)ether 50-32-8 191-24-2 65-85-0 100-51-6 111-44-4 66 65 210 58 56 190 190 370 190 190 Bis(2-chloroethoxy)methane Dichlorodiisopropyl ether Bis(2-ethylhexyl )phth alate 4-Bromophenyl phenyl ether Butyl benzyl phthalate 28 72 79 73 74 190 190 190 190 '190 111-91-1 1 08-60-1 117-81-7 101-55-3 85-68-7 4-Chloroaniline 4-Chloro-3-methylphen ol 2-Chloronaphthalene 2-Chlorophenol 4-Chlorophenylphenyl ether 70 81 38 47 55 190 190 190 190 190 106-47-8 59-50-7 91-58-7 95-57-8 7005-72-3 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Chrysene Dibenz(a, h)anthracene Dibenzofuran Di-n-butylphthalate 1,2-Dichlorobenzene 218-01-9 53-70-3 132-64-9 84-74-2 95-50-1 63 72 42 68 49 190 190 190 190 190 1,3-Dichlorobenzene 1,4-Dichlorobenzene 3,3'-Dichlorobenzidine 2,4-Dichlorophenol Diethylphthalate 71 50 220 49 57 190 190 370 190 190 541-73-1 106-46-7 91-94-1 120-83-2 84-66-2 2,4-Dimethylphenol Dimethylphthalate 4,6-Dinitro-2-methylphen ol 2,4-Dinitrophenol 2,4-Dinitrotoluene 110 64 140 200 52 190 190 190 370 190 105S7-9 131-1 1-3 534-52-1 51-28-5 121-14-2 2,6-Dinitrotoluene Di-n-octylphthalate Fluoranthene Fluorene Hexachlorobenzene 606-20-2 117-84-0 206-44-0 86-73-7 118-74-1 90 65 65 38 34 190 190 190 190 190 Hexachlorobutadiene 87-68-3 63 '190 U - Not Detected allhe Reporting Limit (RI) J - Analyte detected below Practical Quantitalion Limit (PQL) E - Exhapolated value. See rerun at dilution. B - Analyte delected the associated Method Blar* S - Spike Recovery outside accepted recovery limils * - Compound detesled above regulatory limit. X - Not Applicable. Enx Qualiliers: Analyst Approved 11/09/2001 2:54 PM Client Sample ID : P3C1GL6 Lab Sample ID : 0l-6007-l0A Date Collected : ll/0112001 Date Received : ll/02/2001 Date Prepared : ll/06/2001 Date Analyzed : ll/0912001 Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 425-6021 Client Project ID : Unocal Parachute Lab Work Order : 0l-6007 Sample Matrix : Soil Lab File ID : GCMSll08\1601016.D Method Blank : MB-10506 Prep Factor : 33.0906684375023 Effective Dilution : l. 13Percent Moisture : 11.59 Method: SW8270C 8270C Hazardous Substance List Units: pg/KS Analyte CAS #Concentration RL PQL Hexachlorocyclopentadiene Hexachloroethane lndeno( 1,2,3-cd)pyrene lsophorone 77-47-4 67-72-1 1 93-39-5 78-59-1 50 52 66 37 190 190 190 190 2-Methylnaphthalene 2-Methylphenol 4-Methylphenol Naphthalene 2-Nitroaniline 36 120 85 42 69 190 190 190 190 190 91-57-6 9548-7 106-44-5 91-20-3 88-744 U U U U U U U U U U U U U U U U U U U U U U U 3-Nitroaniline 4-Nitroaniline Nitrobenzene 2-Nitrophenol 4-Nitrophenol 99-09-2 100-01-6 98-95-3 88-75-5 100-02-7 82 66 41 51 150 190 190 190 190 190 N-Nitrosodiphenylamine N-Nitrosodipropylamine Pentachlorophenol Phenanthrene Phenol 86-30-6 621-64-7 87-86-5 85-01-8 1 08-95-2 65 35 120 42 46 190 190 190 190 190 Pyrene 1,2,4-Trichlorobenzene 2,4, 5-Trichlorophenol 2,4,6-Trichlorophenol 129-00-0 120-82-1 95-95-4 88-06-2 46 60 90 75 190 190 190 190 Surrogate Recovery 2-Fluorophenol Phenol-d6 Nitrobenzene-d5 2-Fluorobiphenyl 2,4,6-Tribromophenol Terphenyl-d14 684/o 81o/o 760/o 73% 64o/o 81% QC LimitsI - 119 11 - 115 18 - 120 26 - 115 7-129 7-125 U - Not De{ected al1he Reporring Limit (RL) J - Anal)'te daected below Practical Quantitation Limit (PQL) E - Extrapolated valuc. See rerun at dilution. B - Analyte detected inthe associated Method Blank S - Spike Recovery outside accepted recovery limits t - Compound detected above regulatory limit X - Not Applicable. 44K Qualiliers: Analyst Approved 1 1/09/2001 2:54 PM l- Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-602r Client Sample ID : P3C2GL9 Lab Sample ID : 0l-6007-llA DateCollected : ll/01/2001 Date Received : ll/02/2001 DatePrepared : ll/06/2001 Date Analyzed : ll/09/2001 Percent Moisture : 11.1 Client Project ID : Unocal Parachute Lab Work Order : 0l-6007 Sample Matrix : Soil Lab File ID : GCMSIl08Ul0l02l.D Method Blank : MB-10506 Prep Factor : 33.2336324360253 Effective Dilution : l.l2 Method: SW8270C 8270C Hazardous Substance List Units:Fg/Ks Analyte CAS #Concentration POLRL Acenaphthene Acenaphthylene Anthracene Benzo(b&k)fl uoranthene Benzo(a)anthracene 25 40 62 110 63 190 190 190 370 190 83-32-9 208-96-8 120-12-7 205-99-2+k 56-55-3 Benzo(a)pyrene Benzo(g,h,i)perylene Benzoic acid Benzyl alcohol Bis(2-chlo roethyl)ether 65 65 210 58 56 190 190 370 190 190 50-32-8 191-24-2 65-85-0 100-51-6 111-444 Bis(2-chloroeth oxy)meth an e Dichlorodiisopropyl ether Bis(2-ethylhexyl) phth alate 4-Bromophenyl phenyl ether Butyl benzyl phthalate 28 72 79 73 74 190 190 190 190 190 'l 1 1-91 -1 1 08-60-1 117-81-7 1 01 -55-3 85-68-7 4-Chloroaniline 4-Chlo ro-3-m ethylph enol 2-Chloronaphthalene 2-Chlorophenol 4-Chlorophenylphenyl ether 70 81 38 47 55 190 190 '190 190 190 106-47-A 59-50-7 91-58-7 9s-57-8 7005-72-3 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Chrysene Dibenz(a, h)anth racene Dibenzofuran Di-n-butylphthalate 1,2-Dichlorobenzene 218-01-9 53-70-3 132-64-9 84-74-2 95-50-1 o5 71 42 68 49 190 190 190 190 190 1,3-Dichlorobenzene 1,4-Dichlorobenzene 3, 3' -Dichlorobenzidine 2,4-Dichlorophenol Diethylphthalate 71 50 220 49 57 190 190 370 190 190 541-73-1 10646-7 91 -94-1 120-83-2 84-66-2 2,4-Dimethylphenol Dimethylphthalate 4, 6-Dinitro-2-m ethylphenol 2,4-Dinitrophenol 2,4-Dinitrotoluene 110 64 140 200 52 190 190 190 370 190 1 05-67-9 131-1 1-3 534-52-1 51-28-5 121-14-2 2,6-Dinitrotoluene Di-n-octylphthalate Fluoranthene Fluorene Hexachlorobenzene 90 65 65 38 34 190 190 190 190 190 606-20-2 117-84-0 206-44-0 86-73-7 118-74-1 Hexachlorobutadiene 87-68-3 63 190 U - Not Detected althe Reporting Limit (RL) J - Analyte detected below Practical Quantitalion Limit (PQL) E - Extrapolated value. See rerun at dilution. B - Analyte detected inthe associatod Method Blar& S - Spike Recovery outside accepted recovery limits | - Compound detected above regulatory limit X - Not Applicable. fid-/< Qualifiers: Approved I l/09/2001 2:54 PM l" 'Analyst Client Sample ID : P3C2GL9 Lab Sample ID : 0l-6007-llA Date Collected : ll/01/2001 Date Received : 1110212001 DatePrepared : l1106/2001 Date Analyzed : lll09l200l Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-6021 Client Project ID : Unocal Parachute Lab Work Order : 0l-6007 Sample Matrix : Soil Lab File ID : GCMSll08U10102l.D Method Blank : MB-10506PrepFactor :33.2336324360253 Effective Dilution : l.12Percent Moisture : ll.l Method: SW8270C 827OC Hazardous Substance List Units: pg/Kg Analyte CAS #Concentration RL PQL Hexachlorocyclopentadiene Hexachloroethane lndeno( 1,2,3-cd)pyrene lsophorone 77-47-4 67-72-1 1 93-39-5 78-59-1 50 52 66 37 190 '190 190 190 2-Methylnaphthalene 2-Methylphenol 4-Methylphenol Naphthalene 2-Nitroaniline 91-57-6 95-48-7 106-44-5 91-20-3 88-74-4 36 120 85 42 69 190 190 190 190 190 U U U U U U U U U U U U U U U U U U U U U U 3-Nitroaniline 4-Nitroanlline Nitrobenzene 2-Nitrophenol 4-Nitrophenol 99-09-2 100-01-6 98-95-3 88-75-5 100-02-7 82 66 41 51 150 190 190 '190 190 190 N-Nitrosodiphenylamine N-Nitrosodipropylamin e Pentachlorophenol Phenanthrene Phenol 86-30-6 621-64-7 87-86-5 85-01-8 108-95-2 65 35 20 42 46 1 190 190 190 190 190 Pyrene 1,2,4-Trichlorobenzene 2,4,5-Trichlorophenol 1 29-00-0 120-82-1 95-95-4 88-06-2 46 60 90 75 190 190 190 1902 Surrogate U 2-Fluorophenol Phenol-d6 Nitrobenzene-d5 2-Fluorobiphenyl 2,4,6-Tribromophenol Terphenyl-d14 63% 79% 70% 74o/o 67% 86% QC Limits 9 - 119 11 - 115 18 - 120 26 - 115 7-129 7-125 U - Not Det€cted at the Reporting Limit (RL) J - &ralyt€ detected below Practical Quantitation Limit (PQL) E - Extrapola&d value. See rerun al dilution. the associated Method Blark S - Spike Recovery outside accepted recovery limits | - Compound detecied above regulatory limit. X - Not Applicable. Queliflgrs; B - Analyte Analyst Approved 11/09/2001 2:54 PM Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-6021 Client Sample ID : P3C2GL9DUP Lab Sample tD : 0l-6007-12,{ Date Collected : ll/01/2001 Date Received : ll/0212001 Date Prepared : lll06l200L Date Analyzed : ll/09/2001 Percent Moisture : 13.51 Client Project ID : Unocal Parachute Lab Work Order : 0l-6007 Sample Matrix : Soil Lab File ID : GCMSI108U201022.D Method Blank : MB-I0506 PrepFactor :33.0797221303341 Effective Dilution : l.15 Method: SW8270C 827OC Hazardous Substance List Units: pg/KS Analyte CAS #Concentration RL PQL Acenaphthene Acenaphthylene Anthracene Benzo(b&k)fl uoranthene Benzo(a)anthracene 26 41 64 120 65 190 190 190 380 190 83-32-9 208-96-8 120-12-7 205-99-2+k 56-55-3 Benzo(a)pyrene Benzo(g,h,i)perylene Benzoic acid Benzyl alcohol Bis(2-chloroethyl)ether 50-32-8 191-24-2 65-85-0 100-51-6 111-44-4 67 66 10 60 58 2 190 190 380 190 190 Bis(2-chloroeth oxy) m ethane Dichlorodiisopropyl ether Bis(2-ethylhexyl) phthalate 4-Bromophenyl phenyl ether 29 74 81 75 75 190 190 190 190 190Eutyl benzyl phthalate 4-Chloroaniline 4-Chlo ro-3-methylphenol 2-Chloronaphthalene 2-Chlorophenol 4-Chlorophenylphenyl ether 106-47-8 59-50-7 91-58-7 95-57-8 7005-72-3 72 82 39 48 57 190 190 190 190 190 Chrysene Dibenz(a, h)anthracene Dibenzofuran Di-n-butylphthalate 1,2-Dichlorobenzene 65 73 43 70 51 190 190 190 190 190 218-01-9 53-70-3 132-64-9 84-74-2 95-50-1 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 1,3-Dichlorobenzene 1 ,4-Dichlorobenzene 3, 3' -Dichlorobenzidine 2,4-Dichlorophenol Diethylphthalate 73 51 230 50 58 190 190 380 190 190 541-73-1 106-46-7 91 -94-1 120-83-2 84-66-2 2,4-Dimethylphenol Dimethylphthalate 4,6-Dinitro-2-methylphenol 2,4-Dinitrophenol 2,4-Dinitrotoluene '110 66 140 200 53 190 190 190 380 190 105-67-9 131-1 1-3 534-52-1 51-28-5 121-14-2 2,6-Dinitrotoluene Di-n-octylphthalate Fluoranthene Fluorene Hexachlorobenzene 606-20-2 117-84-0 20644-0 86-73-7 118-74-1 92 67 66 39 35 190 190 '190 190 190 Hexachlorobutadiene 87-68-3 65 190 U - Not Detrcted atlhe Reporting Limit (RL) J - Andyt€ detected below Practical Quantitation Limit (PQL) E - Extrapolaled value. See rerun at dilution. B - Andyte detected. in rhe associated Method Blank A S - Spike Recovery outside accepted recovery limits | - Compound detected above regulatory limit. X - Not Applicable. /Q//-/< Qualiliers: Analyst Approved 1 1/09/2001 2:54 PM 111-91-'l 1 08-60-1 117-81-7 1 01-55-3 85€8-7 Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 425-6021 Client Sample ID : P3C2GL9DLIP Lab Sample ID : 0l-6007-l2A Date Collected : lll0l/2001 Date Received : lll02l200l Date Prepared : 111061200l Date Analyzed : ll/09/2001 Percent Moisture : 13.51 Client Project ID : Unocal Parachute Lab Work Order : 01-6007 Sample Matrix : Soil Lab File ID : GCMS1108U20l022.D Method Blank : MB-10506 Prep Factor : 33.0797221303341 Effective Dilution : l.15 Method: SW8270C 827OC Hazardous Substance List Units:pg/Kg Analyte CAS #Concentration RL PQL H exachlorocyclopentadiene Hexachloroethane lndeno( 1,2,3-cd)pyrene lsophorone 77-47-4 67-72-1 1 93-39-5 78-59-1 51 53 68 38 190 't90 190 190 2-Methylnaphthalene 2-Methylphenol 4-Methylphenol Naphthalene 2-Nitroaniline 37 '130 87 43 71 190 190 190 190 190 91-57-6 95-48-7 106-44-5 91-20-3 88-744 U U U U U U U U U U U U U U U U ll U U U U U U 3-Nitroaniline 4-Nitroaniline Nitrobenzene 2-Nitrophenol 4-Nitrophenol 99-09-2 100-01-6 98-95-3 88-75-5 100-02-7 84 67 42 52 150 190 190 190 190 190 N-Nitrosodiphenylamine N-Nitrosodipropylamine Pentachlorophenol Phenanthrene Phenol 86-30-6 621-64-7 87-86-5 85-0'l-8 1 o8-95-2 bb 36 120 43 47 190 190 190 190 190 Pyrene 1,2,4-Trichlorobenzene 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol 47 61 92 77 190 190 190 190 1 29-00-0 120-82-1 95-95-4 88-06-2 Surrogate Recovery 2-Fluorophenol Phenol-d6 Nitrobenzene-d5 2-Fluorobiphenyl 2,4,6-Tribromophenol Terphenyl-d14 620/o 760/o 70o/o 74% 72% 88% QC LimitsI - 119 11 - 115 18 - 120 26 - 115 7-129 7-125 U - Not Detected al the Reporting Limit (RL) J - Analyte detected below Practical Quantitation Limit (PQL) E - Exlrapolated value. See rerun at dilution. detected in the associated Melhod Blank S - Spike Recovery outside accepted recovery limits t - Compound detected above regulatory limit. X - Not Applicable. /?*/< Qurlillers: B - Analyte Analyst Approved 1)/09/2001 2:54 PM Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-6021 Client Sample ID : P3C3GL2 Lab Sample ID : 0l-6007-13A Date Collected : l1/01/2001 Date Received : ll/02/2001 Date Prepared : 1710612001 Date Analyzed : ll/09/2001 Percent Moisture : 6.94 Client Project ID : Unocal Parachute Lab Work Order : 0l-6007 Sample Matrix : Soil Lab File ID : GCMSI108U301023.D Method Blank : MB-10506PrepFactor :33.2005312084993 Effective Dilution : 1.07 Method: SW8270C 827OC Hazardous Substance List Units: pg/Kg Analyte CAS #PQLConcentration Acenaphthene Acenaphthylene Anthracene Benzo(b&k)fl uoranthene Benzo(a)anthracene 24 38 59 110 60 '180 180 180 360 180 83-32-9 208-96-8 120-12-7 205-99-2+k 56-55-3 Benzo(a)pyrene Benzo(g,h,i)perylene Benzoic acid Benzyl alcohol Bis(2-chlo roethyl)ether 50-32-8 191-24-2 65-85-0 100-51-6 111-44-4 62 62 200 56 54 180 180 360 180 180 Bis(2-chloroethoxy)meth ane Dichlorodiisopropyl ether Bis(2-ethylhexyl)phthalate 4-Bromophenyl phenyl ether Butyl benzyl phthalate 27 69 76 70 70 180 180 180 180 180 111-91-1 1 08-60-1 117 -81-7 1 01 -55-3 85-68-7 4-Chloroaniline 4-Chloro-3-methylphenol 2-Chloronaphthalene 2-Chlorophenol 4-Chlorophenylphenyl ether 106-47-8 59-50-7 91-58-7 95-57-8 7005-72-3 67 77 36 45 53 180 180 180 180 180 Chrysene Dibenz(a, h)anthracene Dibenzofuran Di-n-butylphthalate 1 ,2-Dichlorobenzene 60 68 40 65 47 180 180 180 180 180 218-01-9 53-70-3 132-64-9 84-74-2 95-50-1 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 1,3-Dichlorobenzene 1,4-Dichlorobenzene 3, 3' -Dichlorobenzidine 2,4-Dichlorophenol Diethylphthalate 541-73-1 106-46-7 91-94-1 120-83-2 84-66-2 68 48 210 47 55 180 180 360 180 180 2,4-Dimethylphenol Dimethylphthalate 4,6-Dinitro-2-methylphen ol 2,4-Dinitrophenol 2,4-Dinitrotoluene 105-67-9 131-11-3 534-52-1 51-28-5 121-14-2 100 61 130 '190 50 180 180 180 360 180 2,6-Dinitrotoluene Di-n-octylphthalate Fluoranthene Fluorene Hexachlorobenzene 606-20-2 117-84-0 20644-0 86-73-7 118-74-1 86 62 62 50 32 180 180 180 180 180 Hexachlorobutadiene 87-68-3 60 180 U - Not Detect€d atlhe Reporting Limit (RL) J - Analyte detected below Practical Quantitalion Limit (PQL) E - Extrapolated value. See rerun at dilution. B - Analyt€ detecte.d inlhe associated Method Blank A S - Spike Reoovery outside accepted recovery limits | - Compound detected above regulalory limit. X - Not Applioable. Quelifiers: Analyst Approved 1 1/09/2001 2:54 PM RL Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-6021 Client Sample ID : P3C3GL2 Lab Sample ID : 0l-6007-l3,{ Date Collected : ll/01/20O1 Date Received : ll/02/2001 Date Prepared : ll/0612001 Date Analyzed : lll09/2001 Percent Moisture : 6.94 Client Project ID : Unocal Parachute Lab Work Order : 0l-6007 Sample Matrix : Soil Lab File ID : GCMSll08U301023.D Method Blank : MB-10506 PrepFactor :33.2005312084993 Effective Dilution : 1.07 Method: SW8270C 827OC Hazardous Substance List Units:ps/Kg Analyte CAS #PQLRLConcentration Hexachlorocyclo pentadiene Hexachloroethane lndeno( 1,2,3-cd)pyrene lsophorone 77-474 67-72-1 1 93-39-5 78-59-1 48 50 63 35 180 180 180 180 2-Methylnaphthalene 2-Methylphenol 4-Methylphenol Naphthalene 2-Nitroaniline 91-57-6 95-48-7 106-44-5 91-20-3 88-74-4 34 120 81 40 66 180 180 '180 180 180 3-Nitroaniline 4-Nitroaniline Nitrobenzene 2-Nitrophenol 4-Nitrophenol 99-09-2 100-01-6 98-95-3 88-75-5 100-02-7 U U U U U U U U U U U U U U U U U U U U U U U 78 63 39 49 140 180 180 180 180 180 N-Nitrosodiphenylamine N-Nitrosodipro pylamine Pentachlorophenol Phenanthrene Phenol 86-30-6 621-64-7 87-86-5 85-01-8 1 08-95-2 62 34 110 40 44 '180 180 180 180 180 Pyrene 1,2,4-Trichlorobenzene 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol 129-00-0 120-82-1 95-954 88-06-2 44 57 86 72 180 180 180 180 Surrogate Recovery 2-Fluorophenol Phenol-d6 Nitrobenzene-d5 2-Fluorobiphenyl 2,4,6-Tribromophenol Terphenyl-d14 65o/o 80% 73% 76% 68% 860/o QC LimitsI - 119 11 - 115 18 - 120 26 - 115 7-129 7-125 U - Not Detected at the Reporting Limit (RL) J - Andyl€ deteded below Practical Quantitalion Limit (PQL) E - Extrapolafed value. See rerun at dilution. B - Analte detscted inthe associated Mahod Blank'l k- S - Spike Recovery outside accepted recovery limits + - Compound detected above regulatory limit. X - Not Applicable. Qurliffsrx; Analyst Approved 1 1/09/2001 2:54 PM pl Client Sample ID : Lab Sample ID : Date Collected : Date Received : Date Prepared i Date Analyzed : Percent Moisture : P3C9GL7 0l{007-l4A tt/0y2001 ty02t200t lt/0612001 tU09/2001 t2.35 Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-6021 Client Project ID : Unocal Parachute Lab Work Order : 0l-6007 Sample Matrix : Soil Lab File ID : GCMSll08U60l026.D Method Blank : MB-10506 Prep Factor : 33.3000333000333 Effective Dilution : l.14 Method: SW8270C 8270C Hazardous Substance List Unats: IS/KS Analyte CAS #Concentration RL PQL Acenaphthene Acenaphthylene Anthracene Benzo(b&k)fl uoranthene Benzo(a)anthracene 26 40 63 120 64 190 190 190 380 190 83-32-9 208-96-8 120-12-7 205-99-2+k 56-5s-3 Benzo(a)pyrene Benzo(g,h,i)perylene Benzoic acid Benzyl alcohol Bis(2-chloroethyl)ether 50-32-8 191-24-2 65-85-0 100-51-6 11144-4 66 66 210 59 57 190 190 380 190 190 Bis(2-chlo roethoxy)methane Dichlorodiisopropyl ether Bis(2-ethylhexyl)phthalate 4-Bromophenyl phenyl ether Butyl benzyl phthalate 111-91-1 1 08-60-1 117-81-7 1 01 -55-3 85-68-7 29 73 81 75 75 190 '190 190 190 '190 4-Chloroaniline 4-C hloro-3-methylphenol 2-Chloronaphthalene 2-Chlorophenol 4-Chlorophenylphenyl ether 10647-8 59-50-7 91-58-7 95-57-8 7005-72-3 71 82 39 48 56 190 190 190 190 190 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Chrysene Dibenz(a, h)anth racene Dibenzofuran Di-n-bu$phthalate 1,2-Dichlorobenzene 218-01-9 53-70-3 132-64-9 84-74-2 95-50-1 64 73 43 70 50 190 190 '190 190 190 1,3-Dichlorobenzene 1,4-Dichlorobenzene 3,3' -Dichlorobenzidine 2,4-Dichlorophenol Diethylphthalate 72 51 230 50 58 190 190 380 190 190 541-73-1 106-46-7 91-94-1 120-83-2 84-66-2 2,4-Dimethylphenol Dimethylphthalate 4,6-Dinitro-2-methylph enol 2,4-Dinitrophenol 2,4-Dinitrotoluene 110 65 140 200 53 '190 190 190 380 190 1 05-67-9 131-11-3 534-52-1 51-28-5 121-14-2 2,6-Dinitrotoluene Di-n-octylphthalate Fluoranthene Fluorene Hexachlorobenzene 92 66 bb 39 34 190 190 190 190 190 606-20-2 117-84-0 206-44-0 86-73-7 118-74-1 Hexachlorobutadiene 87-68-3 64 190 U - Not Detected at the Reporting Limit (RL) J - Analyte detEcted below Practical Quantitation Limit (PQL) E - Extapolated value. See rerun at dilution. B - Andyte detected inthe associated Method Blank /^ S - Spike Recovery outside accepled recovery limits * - Compound detected above regulatory limit. X - Not Applicable. Qualiliers: h"ty.t Approved I 1/09/2001 2:54 PM fttt< Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO E0033 (303) 42s-6021 Client Sample ID : P3C9GL7 Lab Sample ID : 0l-6007-14A Date Collected : lll0l/2001 Date Received : lll02/2001 Date Prepared : 71106/2001 Date Analyzed : ll/09/2001 Percent : 12.35 Client Project ID : Unocal Parachute Lab Work Order : 0l-6007 Sample Matrix : Soil Lab File ID : GCMSll08U60l026.D Method Blank : MB-10506 Prep Factor : 33.3000333000333 Effective Dilution : l.14 Method: SW8270C 827OC Hazardous Substance List Units:pg/Kg Analyte CAS #Concentration RL POL Hexachlo rocyclopentadien e Hexachloroethane lndeno( 1,2,3-cd)pyrene lsophorone 77-474 67-72-1 193-39-5 78-59-1 51 E2 67 38 190 190 190 190 2-Methylnaphthalene 2-Methylphenol 4-Methylphenol Naphthalene 2-Nitroaniline 36 130 87 43 70 190 190 190 190 190 91-57-6 95-48-7 1 06-44-5 91-20-3 88-74-4 U U U U U U U U U U U U U U U U U U U U 3-Nitroaniline 4-Nitroaniline Nitrobenzene 2-Nitrophenol 4-Nitrophenol 99-09-2 100-01-6 98-95-3 88-75-5 100-02-7 83 67 42 52 150 190 190 190 190 190 N-Nikosodiphenylamine N-Nitrosodipropylamine Pentachlorophenol Phenanthrene Phenol 86-30-6 621-64-7 87-86-5 85-01-8 1 08-95-2 66 36 120 43 47 190 190 190 190 190 Pyrene 1,2,4-Trichlorobenzene 2,4,5-Trichlorophenol 1 29-00-0 120-82-1 95-95-4 88-06-2 U U U 47 61 92 76 190 190 190 1902,4,6-Trichloro Surrogate Recovery 2-Fluorophenol Phenol-d6 Nitrobenzene-d5 2-Fluorobiphenyl , 2,4,6-Tribromophenol Terphenyl-d14 50% 60% 53% 57% 52o/o 66% QC Limits 9 - 119 11 - 115 18 - 120 26 - 115 7-129 7-125 U - Not Detected at the Reporting Limit (RL) J - Analyt detected below hactical Quantitation Limit (PQL) E - Extrapolated value. See rerun at dilution. B - Analyte detected in the associated Method Blank S - Spike Recovery outside accepted recovery limits * - Compound detected above regulatory limit. X - Not Applicable. Qualifiers: Analyst Approved l1/09/2001 2:54PM I Client Sample ID : P3C4GL4 Lab Sample ID : 0l-6007-l5A Date Collected : lll0l/2001 Date Received : lll02l200l Date Prepared : 111061200l Date Analyzed : lll09l200l Percent Moisture : 11.44 Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 425-602r Client Project ID : Unocal Parachute Lab Work Order : 0l-6007 Sample Matrix : Soil Lab File ID : GCMSll08U70l027.D Method Blank : MB-10506 PrepFactor :33.1345261762757 Effective Dilution : 1. 12 Method: SW8270C 8270C Hazardous Substance List Units: Ug/Kg Analyte CAS #Concentration Acenaphthene Acenaphthylene Anthracene Benzo(b&k)fl uoranthene Benzo(a)anthracene 83-32-9 208-96-8 120-12-7 205-99-2+k 56-55-3 25 40 62 110 63 '190 190 190 370 190 Benzo(a)pyrene Benzo(g,h,i)perylene Benzoic acid Benzyl alcohol Bis(2-chloroethyl)ether 50-32-8 191-24-2 65-85-0 100-51-6 111-44-4 65 65 210 58 56 190 190 370 190 190 Bis(2-chloroethoxy)m ethane Dichlorodiisopropyl ether Bis(2-ethylheryl)phth alate 4-Bromophenyl phenyl ether Butyl benzyl phthalate 190 190 190 190 190 111-91-1 1 08-60-1 117 -81-7 101-55-3 85-68-7 4-Chloroaniline 4-Chloro-3-methylphenol 2-Chloronaphthalene 2-Chlorophenol 4-Chlorophenylphenyl ether 70 81 38 47 55 190 190 190 190 190 106-47-8 59-50-7 91-58-7 95-57-8 7005-72-3 Chrysene Dibenz(a, h)anthracene Dibenzofuran Di-n-butylphthalate 'l ,2-Dichlorobenzene 72 42 68 49 190 190 190 190 190 218-01-9 53-70-3 132-64-9 84-74-2 95-50-1 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 63 1,3-Dichlorobenzene 1,4-Dichlorobenzene 3,3' -Dichlorobenzidine 2,4-Dichlorophenol Diethylphthalate 71 50 220 49 57 190 190 370 190 190 541-73-1 106-46-7 91-94-'l 120-83-2 84-66-2 2,4-Dimethylphenol Dimethylphthalate 4,6-Dinitro-2-methylphenol 2,4-Dinitrophenol 2,4-Dinitrotoluene 110 64 140 200 52 190 190 190 370 190 1 05-67-9 131-11-3 534-52-1 51-28-5 121-14-2 2,6-Dinitrotoluene Di-n-octylphthalate Fluoranthene Fluorene Hexachlorobenzene 606-20-2 117-84-0 206-44-0 86-73-7 118-74-1 90 65 65 38 34 190 190 190 190 190 Hexachlorobutadiene 87-68-3 63 190 U - Not Detected al the Reporting Limit (RL) J - Analyte detected below Practica.l Quantilation Umit (PQL) E - Extrapolated value. See rerun at dilution. B - Analyt€ detected in the associated Melhod Blank lL S - Spike Recovery oulside accepted recovery limits r - Compound detected above regulatory limil. X - Not Applicable. Qualiliers: Analyst Approved l1/09/2001 2:54 PM RL POL 28 72 79 73 74 rt Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-6021 Client Sample ID : P3C4GL4 Lab Sample ID : 0l-6007-15A Date Collected : lll0L/2001 Date Received : lll02l200l Date Prepared : 11106/2001 Date Analyzed : lll09l200l Percent Moisture : 11.44 Client Project ID : Unocal Parachute Lab Work Order : 0l-6007 Sample Matrix : Soil Lab File ID : GCMSI108U701027.D Method Blank : MB-10506PrepFactor :33.1345261762757 Effective Dilution : 1.12 Method: SW8270C 8270C Hazardous Substance List Units: llS/KS Analyte CAS #Concentration RL PQL Hexachlorocyclopentadiene Hexachloroethane lndeno( 1,2, 3-cd)pyrene lsophorone 77-47-4 67-72-1 1 93-39-5 78-59-1 50 52 66 37 190 190 190 190 2-Methylnaphthalene 2-Methylphenol 4-Methylphenol Naphthalene 2-Nitroaniline 91-57-6 95-48-7 106-44-5 91-20-3 88-744 1 36 20 85 42 69 190 '190 190 190 190 3-Nitroaniline 4-Nitroaniline Nitrobenzene 2-Nitrophenol 4-Nitrophenol 99-09-2 100-01-6 98-95-3 88-75-5 100-02-7 U U U U U U U U U U U U U U U U U U U U U U U 82 66 41 51 150 190 190 190 190 190 N-Nitrosodiphenylam ine N-Nitrosodipropylamine Pentachlorophenol Phenanthrene Phenol 86-30-6 621-64-7 87-86-5 85-01-8 1 08-95-2 65 35 120 42 46 190 190 190 190 190 Pyrene 1,2,4-Trichlorobenzene 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol 129-00-0 120-82-1 95-95-4 88-06-2 46 60 90 75 190 190 190 190 Surrogate Recovery 2-Fluorophenol Phenol-d6 Nitrobenzene-d5 2-Fluorobiphenyl 2,4,6-Tribromophenol Terphenyl-d14 65% 79% 72% 74% 71% 87% QC LimitsI - 119 11 - 115 18 - 120 26 - 115 7-129 7-125 U - No1 Detected at the Reporting Limit (RL) J - Analyte dstected below Practical Quartitation Limit (PQL) E - Extrapolated value. See rerun at dilution. B - Andyte detected inthe associated Method Blank S - Spike Recovery outside accepted recovery limits '- Compound detected above regulatory limit. X - Not Applicable. L Qualiffers: Analyst Approved 11/09/2001 2:54PM I I lt^k Client Sample ID : P3C5HS,| Lab Sample ID : 0l-6007-164 Date Collected : ll/01/2001 Date Received : lll02l200l DatePrepared : ll/0612001 Date Analyzed : ll/09/2001 Percent Moisture : 11.09 Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-6021 Client Project ID : Unocal Parachute Lab Work Order : 01-6007 Sample Matrix : Soil Lab File ID : GCMSI108\2801028.D Method Blank : MB-10506 PrepFactor :33.21155'76220525 Effective Dilution : 1.12 Method: SW8270C 8270C Hazardous Substance List Units: pS/KS Analyte CAS #Concentration RL PQL Acenaphthene Acenaphthylene Anthracene Benzo(b&k)fl uoranthen e Benzo(a)anthracene 25 40 62 110 63 190 190 190 370 190 83-32-9 208-96-8 120-12-7 205-99-2+k 56-55-3 Benzo(a)pyrene Benzo(g,h,i)perylene Benzoic acid Benzyl alcohol Bis(2-chloroethyl)ether 50-32-8 191-24-2 65-85-0 100-51-6 11144-4 65 65 r10 58 56 2 190 190 370 190 190 Bis(2-chlo roethoxy)methan e Dichlorodiisopropyl ether Bis(2-ethylhexyl)phthatate 4-Bromophenyl phenyl ether Butyl benzyl phthalate 28 72 79 73 74 190 190 190 190 190 111-91-1 1 08-60-1 117-81-7 101-55-3 85€8-7 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 4-Chloroaniline 4-Chloro-3-methylph enol 2-Chloronaphthalene 2-Chlorophenol 4-Chlorophenylphenyl ether 106-47-8 59-50-7 91-58-7 95-57-8 7005-72-3 70 8'1 38 47 55 190 190 190 190 190 Chrysene Dibenz(a, h)anthracene Dibenzofuran Di-n-butylphthalate 1,2-Dichlorobenzene 63 71 42 68 49 190 190 190 190 190 2't8-01-9 53-70-3 132-64-9 84-74-2 95-50-1 1,3-Dichlorobenzene 1,4-Dichlorobenzene 3,3' -Dichlorobenzidine 2,4-Dichlorophenol Diethylphthalate 71 50 220 49 57 190 190 370 190 190 541-73-1 10646-7 91-94-1 120-83-2 84-66-2 2,4-Dimethylphenol Dimethylphthalate 4,6-Dinitro-2-m ethylph enol 2,4-Dinitrophenol 2,4-Dinitrotoluene 1 05-67-9 131-1 1-3 534-52-1 51-28-5 121-14-2 110 64 140 200 52 190 190 190 370 190 2,6-Dinitrotoluene Di-n-octylphthalate Fluoranthene Fluorene Hexachlorobenzene 606-20-2 117-84-O 20644-0 86-73-7 118-7 4-1 U U U U U 90 65 65 38 34 190 190 190 190 '190 Hexachlorobutadiene 87-68-3 63 190 U - Not Deteoted at the Reporting Limit (RL) J - Anallte detected below Practical Quantitation Limit (PQL) E - Extrapolaled value. See rerun at dilution. B - Anallte detected in the associated Method Blank b S - Spike Recovery outside accepted recovery limits * - Compound detected above regulatory limit. X - Not Applicable. Qualifiers: Analyst Approved 11/09/2001 2:54PM n4L Evergreen Analytical, Inc. 4036 Younglield St., Wheat Ridge, CO 80033 (303) 42s-6021 Client Sample ID : P3C5HS4 Lab Sample ID : 01-6007-164 Date Collected : 1l/01/2001 Date Received : lll02l200l DatePrepared : ll/06/2001 Date Analyzed : ll/09/2001 Percent Moisture : 11.09 Client Project ID : Unocal Parachute Lab Work Order : 0l-6007 Sample Matrix : Soil Lab File ID : GCMSI108U801028.D Method Blank : MB-10506 PrepFactor :33.2115576220525 Effective Dilution : 1.12 Method: SW8270C 827OC Hazardous Substance List units: Pg/Kg Analyte CAS #Concentration PQLRL Hexachlorocyclopentadiene Hexachloroethane lndeno( 1,2, 3-cd)pyrene lsophorone 77-47-4 67-72-1 1 93-39-5 78-59-1 50 52 66 37 190 190 190 190 2-Methylnaphthalene 2-Methylphenol 4-Methylphenol Naphthalene 2-Nitroaniline 91-57-6 95-48-7 1 06-44-5 91-20-3 88-74-4 1 36 20 85 42 69 190 190 190 190 190 U U U U U U U U U U U U U U U U U U U U U U U 3-Nitroaniline 4-Nitroaniline Nitrobenzene 2-Nitrophenol 4-Nitrophenol 99-09-2 100-01-6 98-95-3 88-75-5 100-02-7 82 66 41 51 150 190 '190 190 190 190 N-Nitrosodiphenylamin e N-Nitrosodipro pylamine Pentachlorophenol Phenanthrene Phenol 86-30-6 621-64-7 87-86-5 85-01-8 108-95-2 64 35 120 42 46 190 190 190 190 190 Pyrene 1,2,4-Trichlorobenzene 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol 129-00-0 120-82-1 95-95-4 88-06-2 46 60 90 75 190 190 190 190 Surrogate Recovery 2-Fluorophenol Phenol-d6 Nitrobenzene-d5 2-Fluorobiphenyl 2,4,6-Tribromophenol Terphenyl-d14 58% 71% 65% 67% 620/o 72% QC Limits I - 119 11 - 115 18 - 120 26 - 115 7-129 7-125 U - Not Detected atthe Reporting Limit (RL) J - Arulyte detected below Practical Quantitalion Limit (PQL) E - E:<trapolated value. See rerun at dilution. B - Anatyte detected in the associated Method Blankll S - Spike Recovery outside accepted recovery limits r - Compound delected above regulatory limit. X - Not Applicable. Qualifiers: Analyst Approved I 1/09/2001 2:54 PM fr/&K Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 425-6021 Client Sample ID : P3C5GL6 Lab Sample ID : 0l-6007-17A Date Collected : ll/0112001 Date Received : lll02/2001 Date Prepared : ll/06/2001 Date Analyzed : ll/09/2001 Percent Moisture : 12.47 Client Project ID : Unocal Parachute Lab Work Order : 0l-6007 Sample Matrix : Soil Lab File ID : GCMSll08U90l029.D Method Blank : MB-10506 PrepFactor :33.2336324360253 Effective Dilution : l.14 Method: SW8270C 827OC Hazardous Substance List Units: pg/Kg Analyte CAS #POLRL Acenaphthene Acenaphthylene Anthracene Benzo(b&k)fl uoranthene Benzo(a)anthracene 83-32-9 208-96-8 120-12-7 205-99-2+k 56-55-3 26 40 63 20 64 1 190 190 190 380 190 Benzo(a)pyrene Benzo(g,h,i)perylene Benzoic acid Benzyl alcohol Bls(2-chloroethyl)eth er 50-32-8 191-24-2 65-85-0 100-51-6 111-44-4 66 oo 210 59 57 190 190 380 190 190 Bis(2-chloroethoxy)methan e Dichlorodiisopropyl ether Bis(2-ethylh exyl)phth alate 4-Bromophenyl phenyl ether Butyl benzyl phthalate 29 73 8'l 74 75 190 190 190 190 190 111-91-1 1 08-60-1 117-81-7 101-55-3 85-68-7 4-Chloroaniline 4-Chloro-3-methylphen ol 2-Chloronaphthalene 2-Chlorophenol 4-Chlorophenylphenyl ether 10647-8 59-50-7 91-58-7 95-57-8 7005-72-3 71 82 39 48 56 190 190 190 190 190 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Chrysene Dibenz(a, h)anthracene Dibenzofuran Di-n-butylphthalate 1,2-Dichlorobenzene 218-01-9 53-70-3 132-64-9 84-74-2 95-50-1 64 73 43 69 50 190 190 190 190 190 1,3-Dichlorobenzene 1,4-Dichlorobenzene 3,3' -Dichlorobenzidine 2,4-Dichlorophenol Diethylphthalate 72 51 230 50 58 190 190 380 190 190 541-73-1 10646-7 91-94-1 120-83-2 84-66-2 2,4-Dimethylphenol Dimethylphthalate 4,6-Dinitro-2-methylphenol 2,4-Dinitrophenol 2,4-Dinitrotoluene 110 65 140 200 53 190 190 190 380 190 1 05-67-9 13'l-11-3 534-52-1 51-28-5 121-14-2 2,6-Dinitrotoluene Di-n-octylphthalate Fluoranthene Fluorene Hexachlorobenzene 606-20-2 117-84-0 20644-0 86-73-7 118-74-1 92 66 66 39 34 190 190 190 190 190 Hexachlorobutadiene 87-68-3 64 190 U - Not Ddected at the Reporting Limit (RL) J - Analyte del€c'ted below Practical Quanlitation Limit (PQL) E - Extrapolated value. See rerun at dilution. B - Anallte detected in the associaled Method Blank A S - Spike Recovery outside acceped recovery limits | - Compound dctected above regulatory limit. X - Not Applicable. RAK Quelifiers: Analyst 6pr""d 1 1/09/2001 2:54 PM Concentration Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-6021 Client Sample ID : P3C5GL6 Lab Sample ID : 0l-6007-174 Date Collected : I l/0 l/2001 Date Received : 1l/02/2001 DatePrepared : 111061200l Date Analyzed : lll09/2001 Client Project ID : Unocal Parachute Lab Work Order : 0l-6007 Sample Matrix : Soil Lab File ID : GCMSIl08U901029.D Method Blank : MB-10506 PrepFactor :33.2336324360253 Effective Dilution : l.14Percent Moisture : 12.47 Method: SW8270C 827OC Hazardous Substance List Units: pg/Kg Analyte CAS #Concentration RL PQL Hexachlorocyclo pentadiene Hexachloroethane lndeno( 1,2,3-cd)pyrene lsophorone 51 53 67 38 190 190 190 190 77-47-4 67-72-1 1 93-39-5 78-59-1 2-Methylnaphthalene 2-Methylphenol 4-Methylphenol Naphthalene 2-Nitroaniline 36 130 87 43 70 190 190 190 190 190 91-57-6 95-48-7 106-44-5 91-20-3 88-74-4 U U U U U U U U U U U U U U U U U U U U U U U 3-Nitroaniline 4-Nitroaniline Nitrobenzene 2-Nitrophenol 4-Nitrophenol 99-09-2 100-01-6 98-95-3 88-75-5 100-02-7 83 67 42 52 '150 190 190 190 190 190 N-Nitrosodiphenylamine N-Nitrosodipro pylamine Pentachlorophenol Phenanthrene Phenol 86-30-6 621-64-7 87-86-5 85-01-8 1 08-95-2 66 36 20 43 46 1 Pyrene 1,2,4-Trichlorobenzene 2,4, 5-Trichlorophenol 2,4,6-Trichlorophenol 47 61 92 76 190 190 190 190 1 29-00-0 120-82-1 95-95-4 88-06-2 Surrogate Recovery 2-Fluorophenol Phenol-d6 Nitrobenzene-d5 2-Fluorobiphenyl 2,4,6-Tribromophenol Terphenyl-d14 63% 79% 73% 70% 65% 86% QC Limits 9 - '119 11 - 115 18 - 120 26 - 115 7-129 7-125 U - Not Detected al the Reporting Limit (RL) J - Analyte dsr€ded below Practical Quarnildion Limit (PQL) E - Extrapolatcd value. See renrn at dilution. B - Analyt! detected inthe associated Method Blank S - Spike Recovery outside accepted recovery limits r - Compound detected above regulatory limit. X - Not Applicable. It Qualifiers: ena$st Approved 1l/09/2001 2:54PM I 190 190 190 190 190 Lab Sample ID Date Prepared Date Analyzed MB-10506 tU06/2001 tt/07t2001 Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-602r Method Blank Report Client Project ID : Unocal Parachute Lab Work Order: 016007 Lab File ID : GCMSl107\1001003.D Prep Factor : 33.3333333333333 Effective Dilution : I Method: SW8270C SEMIVOLATILE ORGANICS 8270C Units: Ug/Kg Analyte CAS #Concentration RL POL Acenaphthene Acenaphthylene Anthracene Benzo(b&k)fl uoranthene Benzo(a)anthracene 22 35 56 100 56 170 170 170 330 170 83-32-9 208-96-8 120-12-7 205-99-2+k 56-55-3 Benzo(a)pyrene Benzo(g,h,i)perylene Benzoic acid Benzyl alcohol Bis(2-chloroethyl)eth er 50-32-8 191-24-2 65-85-0 100-s1-6 11144-4 58 58 80 52 50 170 170 330 170 170 Bis(2-chlo roethoxy)methane Dichlorodiisopropyl ether Bis(2-ethylhexyl)phthalate 4-Bromophenyl phenyl ether Butyl benzyl phthalate 111-91-1 1 08-60-1 117-81-7 1 01 -55-3 85-68-7 25 64 71 65 66 170 170 170 170 170 4-Chloroaniline 4-Chlo ro-3-methylphenol 2-Chloronaphthalene 2-Chlorophenol 4-Chlorophenylphenyl ether 106-47-8 59-50-7 91-58-7 95-57-8 7005-72-3 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 63 72 34 42 49 170 170 170 170 170 Chrysene Dibenz(a, h)anthracene Dibenzofuran Di-n-butylphthalate 1,2-Dichlorobenzene 56 64 37 61 44 170 170 170 170 170 218-01-9 53-70-3 132-64-9 84-74-2 95-50-1 1,3-Dichlorobenzene 1,4-Dichlorobenzene 3, 3' -Dichlorobenzidine 2,4-Dichlorophenol Diethylphthalate 541-73-1 10646-7 91-94-1 120-83-2 84-66-2 63 45 200 44 51 170 170 330 170 170 2,4-Dimethylphenol Dimethylphthalate 4,6-Dinitro-2-methylphenol 2,4-Dinitrophenol 2,4-Dinitrotoluene 95 57 120 180 46 170 170 170 330 170 105-67-9 131-1 1-3 534-52-1 51-28-5 121-14-2 2,6-Dinitrotoluene Di-n-octylphthalate Fluoranthene Fluorene Hexachlorobenzene 606-20-2 117-84-0 20644-0 86-73-7 118-74-1 80 58 58 34 30 170 170 170 170 170 U - Not Detected at the Reporting Limil (RL) J - Andyt€ detected below Practical Quanlitalion Limit (PQL) E - Extrapolated value. See rerun al dilution. B - Analyte dstocted in the associated Method Blark S - Spike Recovery outside accepted recovery limils X - Not fuplicable. fi&-/(*IL Qrrnlifi615; Analyst 6pr"*d 1Y0A2001 9:27 AM Lab Sample II) Date Prepared Date Analyzed MB-10506 tt/0612001 tv0'712001 Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-6021 Method Blank Repoft Client Project ID : Unocal Parachute Lab Work Order : 0l-6007 Lab File ID : GCMSll0T\1001003.D Prep Factor : 33.3333333333333 Effective Dilution : I Method: SW8270C SEMIVOLATILE ORGAN]CS 8270C Units: Ug/Kg Analyte CAS #Concentration RL PQL Hexachlorobutadiene H exachlo rocyclopentadiene Hexachloroethane lndeno('1,2, 3-cd)pyrene lsophorone 87-68-3 77-47-4 67-72-1 1 93-39-5 78-59-1 56 45 47 59 33 170 170 170 170 170 2-Methylnaphthalene 2-Methylphenol 4-Methylphenol Naphthalene 2-Nitroaniline 91-57-6 95-48-7 106-44-5 91-20-3 88-744 32 110 76 37 62 170 170 170 170 170 3-Nitroaniline 4-Nitroaniline Nitrobenzene 2-Nitrophenol 4-Nitrophenol 99-09-2 100-01-6 98-95-3 88-75-5 100-02-7 U U U U U U U U U U U U U U U U U U U U U U U U 73 59 37 45 130 170 170 170 170 170 N-Nitrosodiph enylamine N-Nitrosodipropylamine Pentachlorophenol Phenanthrene Phenol 58 31 100 38 41 170 170 170 170 170 86-30-6 621-64-7 87-86-5 85-01-8 108-95-2 Pyrene 1,2,4-Trichlorobenzene 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol 41 53 81 67 170 170 170 170 129-00-0 120-82-1 95-954 88-06-2 Surrogate Recovery 2-Fluorophenol Phenol-d6 Nitrobenzene-d5 2-Fluorobiphenyl 2,4,6-Tribromophenol Terphenyl-d14 65% 71% 67% 760 75% 94% QC Limits I - 119 11 - 115 18 - 120 26 - 115 7-129 7-125 U - Not Detectpd at the Reporting Limil (RL) J - Anallte dst€ct€d below Pras'tical Quantilalion Limil (PQL) E - Extrapolaled value. See rerun at dilution. B - Analyt€ dstBcted inlhe associated Method Blark S - Spike Recovery outside accepted recovery limits X - Not Applicable. Qrrnllft613; 11/0U2001 9:27AM R*k hliroved Client Sample ID : P3C6HSl Lab Sample ID : 0l-6169-0lA Date Collected : lll0l/2001 Date Received : llll2l200l DatePrepared : ll/1312001 Date Analyzed : llll3l200l Percent Moisture : 39.19 Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 425-602r Client Project ID : Unocal Parachute Lab Work Order : 0l-6169 Sample Matrix : Soil Lab File ID : VOA3I I l3\13915.D Method Blank : RBlll30l Prep F'actor : I Effective Dilution : 8.22 Method: SW8260B Hazardous Substance List - Volatile Organics Units: US/Kg Analyte CAS #Concentration PQLRL Acetone Benzene Bromodichloromethane Bromoform Bromomethane 67-64-1 71-43-2 75-27-4 75-25-2 74-83-9 2000 99 8.2 8.2 8.2 8.2 490 82 82 82 U U U U 41 2-Butanone Carbon disulfide Carbon tetrachloride Chlorobenzene Chloroethane 78-93-3 75-1 5-0 56-23-s 1 08-90-7 75-00-3 5001 74 8.2 8.2 8.2 25 410 82 82 82 120 2-C hloroethylvinyleth er Chloroform Chloromethane Dibromochloromethane 1 ,'1-Dichloroethane 1 10-75-8 67-66-3 74-87-3 12448-1 75-34-3 160 8.2 16 8.2 8.2 820 82 82 41 82 1,2-Dichloroethane 1 , 1-Dichloroethene cis-1,2-Dichloroethene trans-1,2-Dichloroethene 1 ,2-Dichloropropane 107-06-2 75-35-4 1 56-59-2 1 56-60-5 78-87-5 8.2 8.2 8.2 8.2 16 82 82 41 82 41 cis-1,3-Dichloropropene trans-1,3-Dichloropropene Ethylbenzene 2-Hexanone Methylene chloride 10061-01-5 10061-02€ 100-414 591-78-6 75-09-2 U U U U U U U U U U U U U U U U U U J U U U U U U U U U U U 8 16 16 8.2 16 8.2 82 82 82 160 82 4-Methyl-2-pentanone Styrene Tetrachloroethene 1,1,2,2-f et achlo roeth a n e Toluene 1 08-1 0-1 100-42-5 127-184 79-34-5 1 08-88-3 82 8.2 16 16 8.2 4 10 82 82 82 82 71-55-6 79-00-5 79-01-6 1 08-05-4 75-O1-4 8.2 16 16 16 16 82 82 82 82 82 Total Xylene 1330-20-7 33 160 Surrogate Recovery 1,2-Dichloroethane.d4 (SS-1 ) Toluen+dB (SS-2) 4-Bromofl uorobenzene (SS-3) 103o/o 95% 99o/o QC Limits 75 - 110 82 - 125 74 - 115 U - Not De(ected ar the Repo,rting Limil (RL) J - Analyte detected below Practical Quantitation Limit (PQL) E - Extrapolated value. See rerun at dilution. detected in the associated Method Blank S - Spike Recovery outside accepted recovery limits * - Compound detected above regulatory limit. X - Not Applicable. -?o Qualifiers: B- Analyst Approved l1/14/2001 l:44PM 1, 1, 1 -Trichloroethane 1, 1,2-Trichloroethane Trichloroethene Vinyl acetate Vinyl chloride Quantitation Report Dat.a File : c: \npcHEM\1\DATA\voA31113\1391s.DAcq On : 13 Nov 2001 7:25 pmSample : 01- 61-69 -01A DF=5Misc : SAMP 8260 S MS Integration Paramsl rteint.p Quant Time: Nov L4 13:38 2001 euant Vial-: Operator: f nst. : Multiplr: 27 Steve Tyson VOA3 1.00 MethodTitleLast Update Res se vl_a : c: \uecHEM\1\METHoDS\82501102.M (nrp: 8260: Fri Nov 02 15:03:01 2001: Initial Calibration Results File: 82601102.RF^ Integrator) TIC: 13915.D a>- N a)a Yo o 6F F o o c & Nl Eo E 11.00 12.OO 1 1 1 1 1 1 1 1 100000 1000000 o- U)a o o NIo o o Eo o o oNco o o Eo ?sq ) l- }. FrD E J N \^ -: d v @- o o 6 oo -9E,9o N. 900000 600000 400000 1 o o Eo -s 8C o6 F o o d} N o'coo F o! -9 (-) o _q o c 6 o 7 13915.D 82501102.M Wed Nov 14 13:39:08 2001 Page 2 Client Sample ID : Lab Sample ID : Date Collected : Date Received : Date Prepared : Date Analyzed : Percent Moisture P3C6GL3 0l-6169-02A tU0y200l rt/12t2001 tUt3/2001 tUt3t200t t3.77 Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 425-6021 Client Project ID : Unocal Parachute Lab Work Order : 0l-6169 Sample Matrix : Soil Lab File ID : VOA3I I l3\13895.D Method Blank : RBlll30l Prep Factor : I Effective Dilution : 5.79 Method: SW8260B Hazardous Substance List - Volatile Organics Units: pg/KS Analyte CAS #Concentration RL PQL Acetone Benzene Bromodichloromethane Bromoform Bromomethane 67$4-1 7143-2 75-27-4 75-25-2 74-83-9 35070 5.8 5.8 5.8 5.8 80 58 29 58 58 2-Butanone Carbon disulfide Carbon tetrachloride Chlorobenzene Chloroethane 78-93-3 75-15-O s6-23-5 1 08-90-7 75-00-3 290 58 58 58 87 52 5.8 5.8 5.8 17 J U U U U U U U U U U U U U U U U U U U U U U U 2-Chloroethylvinylether Chloroform Chloromethane Dibromochloromethane 1,1-Dichloroethane 110-75-8 67-66-3 74-87-3 12448-1 75-34-3 110 5.8 12 5.8 5.8 580 58 58 29 58 1,2-Dichloroethane 1,1-Dichloroethene cis-1,2-Dichloroethene trans- 1,2-Dichloroethene 1,2-Dichloropropane 107-06-2 75-354 1 56-59-2 156€0-5 78-87-5 5.8 5.8 5.8 5.8 12 29 58 58 29 58 cis-1, 3-Dichloropropene trans-1,3-Dichloropropene Ethylbenzene 2-Hexanone Methylene chloride 12 12 58 12 5.8 58 58 58 120 58 't 0061-01-5 10061-02-6 10041-4 591-78€ 75-09-2 8 4-MethyL2-pentanone Styrene Tetrachloroethene 1,1,2,2-f efi ach lo roeth a n e Toluene 1 08-1 0-1 100-42-5 127-184 79-34-5 1 08-88-3 58 5.8 12 12 5.8 290 58 58 58 58 1, 1, 1 -Trichloroethane 1, 1,2-Trichloroethane Trichloroethene Vinyl acetate Vinyl chloride 71-55-6 79-00-5 79-01-6 108-05-4 75-01-4 J U U U U U U U U U U U 5.8 12 12 12 12 58 58 58 58 58 TotalXylene 1330-20-7 23 120 Surrogate Recovery 1,2-Dichloroethane.d4 (SS-1 ) Toluene-d8 (SS-2) 4-Bromofl uorobenzene (SS-3) 105o/o 99% 960/" QC Limits 75 - 110 82 - 125 74 - 115 U - Not Daecled at the Reporting Limit (RL) J - Analyte detected below Practical Quantiration Limit (PQL) E - Efrapolated value. See rerun at dilution. S - Spike Recovery outside accepted recovery limirs ' - Compound detected above regulatory limit. X- NotApplicable. tu Qualifiers: B.detected in the associated Method Blank Approved l1/11/2001 10:55AM Client Sample ID : P3CI2GL5 Lab Sample ID : 0l-616943A Date Collected : lll01/2001 Date Received : ll/12/2O01 Date Prepared : llll3/2D01 Date Analyzed z ll/l3l2o0l Percent Moisture : 13.91 Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-6021 Client Project ID : Unocal Parachute Lab Work 0rder : 015169 Sample Matrix : Soil LabFileID : VOA3lll3\13916.D Method Blank : RBlll30l Prep tr'actor : I Effective Dilution : 5.8 Method: SW8260B Hazardous Substance List - Volatile Organics Units: pg/Kg Analyte cAs #Concentration RL PQL Acetone Benzene Bromodichloromethane Bromoform Bromomethane 67-64-1 71-43-2 75-274 75-25-2 74-83-9 70 5.8 5.8 5.8 5.8 58 29 58 58 350 2-Butanone Carbon disulfide Carbon tetrachloride Chlorobenzene Chloroethane 78-93-3 75-1 5-0 s6-23-5 108-90-7 75-00-3 52 5.8 5.8 5.8 17 290 58 58 58 87 2-Chloroethylvinylether Chloroform Chloromethane Dibromochloromethane 1,1-Dichloroethane 110-75-8 67-66-3 74-87-3 12448-1 75-34-3 110 5.8 12 5.8 5.8 580 58 58 29 58 1,2-Dichloroethane 1,1-Dichloroethene cis-1,2-Dichloroethene trans-1,2-Dichloroethene 1,2-Dichloropropane 107-06-2 75-35-4 1 56-59-2 156S0-5 78-87-5 U U U U U U U U U U U U U U U U U U U U U U U U J U U U U U U U U U U U 5.8 58 5.8 5.8 12 29 58 58 29 58 cis-1,3-Dichloropropene trans-1, 3-Dichloropropene Ethylbenzene 2-Hexanone Methylene chloride 10061-01-5 1006't-02-6 100-414 591-786 75-09-2 10 12 12 5.8 12 5.8 58 58 58 120 58 4-Methyl-2-pentanone Styrene Tetrachloroethene 1,1,2,2-T etr ach lo roeth a n e Toluene 1 08-1 0-1 100-42-5 127-184 79-34-5 1 08-88-3 290 58 58 58 58 58 5.8 12 12 5.8 1 ,1 , 1 -Trichloroethane 1,'1,2-Trichloroethane Trichloroethene Vinyl acetate Vinyl chloride 71-55-6 79-00-5 79-016 't08-05-4 75-01-4 5.8 12 12 12 12 58 58 58 58 58 Total Xylene 1330-20-7 23 120 Surrogate Recovery 1,2-Dichloroethane.d4 (SS-1 ) Toluene-d8 (SS-2) 4-Bromofl uorobenzene (SS-3) 106% 96% 95o/o QC Limits 75 - 110 82 - 125 74 - 115 U - Not Detected atthe Reponing Limit (RL) J - Analyte detected below Practical Quantitation Limit (PQL) E - Exlrapolated value. See rerun at dilution. B - Analvte^detected in the associated Method Blank )tufL S - Spike Recovery outside accepted recovery limits | - Compound detected above regulatory limit. X - Not Applicable. -Vu Qualifiers: y'*rt-t Approved ll/14/2001 I:52Plvt i Client Sample ID : P3Cl lHS2 Lab Sample ID : 01616944,{ Date Collected : l1/01/2001 Date Received : llll2l200l DatePrepared : ll/13/2001 Date Analyzed : llll3l200l Percent Moisture: 16 Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-602r Client Project ID : Unocal Parachute Lab Work Order : 01.6169 Sampte Matrix : Soil Lab File ID : VOA3lll3\13897.D Method Blank : RBlll30l Prep Factor : I Effective Dilution : 5.95 Method: SW8260B Hazardous Substance List - Volatile Organics Units: pg/KS Analyte CAS #Concentration RL PQL Acetone Benzene Bromodichloromethane Bromoform Bromomethane 67-64-1 71-43-2 75-27-4 75-25-2 74-83-9 36071 6 6 6 6 60 30 60 60 2-Butanone Carbon disulfide Carbon tetrachloride Chlorobenzene Chloroethane 78-93-3 75-1 5-0 56-23-5 1 08-90-7 75-00-3 54 300 60 60 60 89 6 o b 18 2-C hloroethylvinylether Chloroform Chloromethane Dibromochloromethane 1 ,1-Dichloroethane 110-75-8 67-66-3 74-87-3 124-48-1 75-34-3 110 600 60 60 30 60 6 12 o b U U U U U U U U U U U U U U U U U U U U U U U U J U U U U U U U U U U U 1 ,2-Dichloroethane 1 ,1-Dichloroethene cis-1,2-Dichloroethene trans-1,2-Dichloroethene 1,2-Dichloropropane 107-06-2 75-35-4 1 56-59-2 1 56-60-5 78-87-5 30 60 60 30 60 6 o b 6 12 cis-1,3-Dichloropropene trans- 1, 3-Dichloropropene Ethylbenzene 2-Hexanone Methylene chloride 12 12 b 12 6 60 60 60 120 60 10061-01-5 10061-02-6 100-414 591-78-6 75-09-2 4-Methyl-2-pentanone Sgrene Tetrachloroethene 1,1,2,2-f etachloroethane Toluene 1 08-1 0-1 100-42-5 127-18-4 79-34-5 1 08-88-3 60 6 12 12 6 300 60 60 60 60 1, 1, 1 -Trichloroethane 1, 1,2-Trichloroethane Trichloroethene Vinyl acetate Vinyl chlonde 71-556 79-00-5 79-01-6 108-054 75-01-4 6 12 12 12 12 60 60 60 60 60 Total Xylene 1330-20-7 24 120 Surrogate Recovery 1,2-Dichloroethane-d4 (SS-1 ) Toluen+.d8 (SS-2) 4-Bromofl uorobenzene (SS-3) 1O2o/o 98o/o 95% QC Limits 75 - 110 82 - 125 74 - 115 U - Not Daeded at the Reporting Limit (RL) J - AndytE d€tecled below hactical Quantitation Limit (PQL) E - Extrapolated value. See rerun at dilution. S - Spike Recovery outside accepted recovery limils | - Compound detected above regulatory limit. X - Not Applicable. -D-,- j-(._,/ Qualifiers: B - Analyte the associated Method Blank Approved I 1/14/2001 I 1:05 A,tl 8 Client Sample ID : P3Cl lGL8 Lab Sample ID : 0l-6169-05A DateCollected : ll/ol/2001 Date Received : llll2/2001 Date Prepared : ll/1312001 Date Analyzed : ll/13/2001 Percent Moisture : 12.49 Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-6021 Client Project ID : Unocal Parachute Lab Work Order : 0l-6169 Sample Matrix : Soil Lab File ID : VOA3lll3\13898.D Method Blank : RBlll30l Prep tr'actor : I Effective Dilution : 5.71 Method: SW8260B Hazardous Substance List - Volatile Organics Units:Fg/KS Analyte cAs #Concentration RL PQL Acetone Benzene Bromodichloromethane Bromoform Bromomethane 67$4-1 71-43-2 75-27-4 75-25-2 74-83-9 69 5.7 5.7 5.7 5.7 340 57 29 57 57 2-Butanone Carbon disulfide Carbon tetrachloride Chlorobenzene Chloroethane 78-93-3 75-15-0 56-23-5 1 08-90-7 75-00-3 51 5.7 5.7 5.7 17 290 57 57 57 86 2-Chloroethylvinylether Chloroform Chloromethane Dibromochloromethane 1,1-Dichloroethane 1 10-75-8 6766-3 74-87-3 12448-1 75-34-3 110 5.7 11 5.7 5.7 570 57 57 29 57 1,2-Dichloroethane 1,1-Dichloroethene cis-1,2-Dichloroethene trans-1,2-Dichloroethene 1,2-Dichloropropane 107-06-2 75-35-4 1 56-59-2 156€0-5 78-87-5 U U U U U U U U U U U U U U U U U U U U U U U U J U U U U U U U U U U U 57 5.7 57 5.7 11 29 57 57 29 57 cis-1, 3-Dichloropropene trans-1, 3-Dichloropropene Ethylbenzene 2-Hexanone Methylene chloride 10061-01-5 10061-02-6 100414 591-78-6 75-09-2 30 11 11 5.7 11 5.7 57 57 57 110 57 4-Methyl-2-pentanone Styrene Tetrachloroethene 1,1,2,2-T etr achloroeth an e Toluene I 08-1 0-1 10042-5 127-18-4 79-34-5 1 08-88-3 290 57 57 57 57 57 5.7 11 11 5.7 1 ,1 , 1-Trichloroethane 1, 1,2-Trichloroethane Trichloroethene Vinyl acetate Vinyl chloride 71-55-6 79-00-5 79-01-6 108-054 75-014 5.7 11 11 11 11 57 57 57 57 57 Total Xylene 1330-20-7 23 110 Surrogate Recovery 1,2-Dichloroethane-d4 (SS-1 ) Toluene-d8 (SS-2) 4-Bromofl uorobenzene (SS-3) 104o/o 101o/o 91o/o QC Limits 75 - 110 82 - 125 74 - 115 U - Not Detected atlhe Reporting Limit (RL) J - Analyte detecled b€low Practical Quantitation Limit (PQL) E - Extrapolated value. See rerun at dilution. S - Spike Recovery outside accepted recovery limits * - Compound deteaed above regulatory limit. X - Not Applicable.')o Quelillers: B - Analyte in the associated Method Blank Approved l1/14/2001 I1:134M i Client Sample ID : P3CI0HS3 Lab Sample ID : 0l-6169-06A Date Collected : lll0ll200l Date Received : ll/1212001 DatePrepared : ll/1312001 Date Analyzed : llll3l200l Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s{021 Client Project ID : Unocal Parachute Lab Work Order : 0l{169 Sample Matrix : Soil LabfileID : VOA3lll3\13917.D Method Blank : RBlll30l Prep Factor : I Effective Dilution : 6.8Percent Moisture :26.5'7 Analyte CAS #Concentration RL PQL Acetone Benzene Bromodichloromethane Bromoform Bromomethane 67-64-1 71-43-2 75-27-4 7s-25-2 74-83-9 40082 6.8 6.8 6.8 6.8 10 68 34 68 68 2-Butanone Carbon disulfide Carbon tetrachloride Chlorobenzene Chloroethane 78-93-3 75-1 5-0 56-23-5 1 08-90-7 75-00-3 61 6.8 6.8 6.8 20 340 68 68 68 100 2-Chloroethylvinylether Chloroform Chloromethane Dibromochloromethane 1,1-Dichloroethane 1 1 0-75-8 6766-3 74-87-3 124-48-1 75-34-3 130 6.8 14 6.8 6.8 680 68 68 34 68 1,2-Dichloroethane 1 , 1-Dichloroethene cis-1,2-Dichloroethene trans-1,2-Dichloroethene 1,2-Dichloropropane 107-06-2 75-354 1 56-59-2 15660-5 78-87-5 J U U U U U U U U U U U U U U U U U U U U U U U J U U U U U U U U U U U 6.8 6.8 6.8 6.8 14 34 68 68 34 68 cis-1, 3-Dichloropropene trans-1, 3-Dichloropropene Ethylbenzene 2-Hexanone Methylene chloride 14 14 6.8 14 6.8 68 68 68 140 68 10061-01-5 10061-02-6 10041-4 591-78-6 75-09-2 10 4-Methyl-2-pentanone Styrene Tetrachloroethene 1, 1,2,2-T elr ach lo roeth a n e Toluene 1 08-1 0-1 100-42-5 127-18-4 79-34-5 108-88-3 340 68 68 68 68 68 6.8 14 14 6.8 1, 1, 1 -Trichloroethane 1, 1,2-Trichloroethane Trichloroethene Vinyl acetate Vinyl chloride 71-55-6 79-00-5 79-01-6 1 08-05-4 75-01-4 6.8 14 14 14 14 68 68 68 68 68 Total Xylene 1330-20-7 27 140 Surrogate Recovery 1,2-Dichloroethane-d4 (SS-1 ) Toluene-d8 (SS-2) 4-Bromofl uorobenzene (SS-3) 1O4o/o 100o/o 96% QG Limits 75 - 110 82 - 125 74 - 115 U - Nol Detected atlhe Reporting Limit (RL) J - Analyte delected below Practical Quantitation Limit (PQL) E - Extrapolated value. See rerun at dilution. B - Analvte detecled in the associated Mahod Blankk!^ S - Spike Recovery outside accepted recovery limits t - Compound detected above regulatory limit. X - Not Applicable. Qualiliers: W Approved 1)/14/2001 l:58PM Method: SW8260B Hazardous Substance List - Volatile Organics Units: ps/Kg Client Sample ID : P3C10GL3 Lab Sample ID : 0l-6169-07A Date Collected : llloll200l Date Received : llll2l2O0l Date Prepared : ll/13/2001 Date Analyzed z llll3l2O0l Percent Moisturc z 12.44 Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 425-6021 Client Project ID : Unocal Parachute Lab Work Order : 0l.6169 Sample Matrix : Soil Lab File ID : VOA3I I l3\13902.D Method Blank : RBlll30l Prep Factor : I Effective Dilution : 5.71 Method: SW826OB Hazardous Substance List - Volatile Organics Units: pS/Kg Analyte CAS #Concentration RL PQL Acetone Benzene Bromodichloromethane Bromoform Bromomethane 67-64-1 71-43-2 75-27-4 75-25-2 74-83-9 3400069 5.7 5.7 5.7 5.7 57 29 57 57 2-Butanone Carbon disutfide Carbon tetrachloride Chlorobenzene Chloroethane 78-93-3 75-1 5-0 56-23-5 1 08-90-7 75-00-3 290 57 57 57 86 51 5.7 5.7 5.7 17 2-Chloroethylvinylether Chloroform Chloromethane Dibromochloromethane 'l , 1-Dichloroethane I 1 0-75-8 67-66-3 74-87-3 12448-1 75-34-3 110 5.7 11 5.7 5.7 570 57 57 29 57 J U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 1,2-Dichloroethane 1,1-Dichloroethene cis- 1,2-Dichloroethene trans-1,2-Dichloroethene 1,2-Dichloropropane 107-06-2 75-35-4 1 56-59-2 156-60-5 78-87-5 5.7 5.7 5.7 5.7 11 29 57 57 29 57 cis-1, 3-Dichloropropene trans-1, 3-Dichloropropene Ethylbenzene 2-Hexanone Methylene chloride 1 0061-01-5 10061-02-6 10041-4 591-78€ 75-09-2 11 11 5.7 11 57 57 57 57 110 57 4-Methyl-2-pentanone Styrene Tetrachloroethene 1,1,2,2-T etr ach lo roetha n e Toluene 1 08-1 0-1 100-42-5 127-184 79-34-5 1 08-88-3 290 57 57 57 57 57 5.7 11 11 5.7 1, 1, 1 -Trichloroethane 1, 1,2-Trichloroethane Trichloroethene Vinyl acetate Vinyl chloride 71-556 79-00-5 79-01-6 1 08-05-4 75-01-4 5.7 11 11 11 11 57 57 57 57 57 Total Xylene 1330-20-7 23 110 Surrogate Recovery 1,2-Dichloroethane-d4 (SS-1 ) Toluene-d8 (SS-2) 4-Bromofl uorobenzene (SS-3) 103oh 1O0o/o 98o/o QC Limits 75 - 110 82 - 125 74 - 115 U - Not kecled at the Reporting Limit (RL) J - Anal/e daected below Praclical Quamibtion Limit (PQL) E - Extrapolated value. See rerun at dilution. S - Spike Recoveryoutside acceptedrecovery limits * - Compound daected above regulatory limit. X - Not Applicable. -b Quelifien: B-detected in the associated Melhod Blank Approved 1|/t4/2001 l1:48AM I Client Sample ID : Lab Sample ID : Date Collected : Date Received : Date Prepared : Date Anallzed : Percent Moisture : P3C8GL5 016169-084 tU0U200t tt/12t200r rr/t31200t tllt31200t 9.94 Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-602r Client Project ID : Unocal Parachute Lab Work Order : 0l{169 Sample Matrix : Soil Lab File ID : VOA3I I l3\13903.D Method Blank : RBll l30l Prep Factor : I Effective Dilution : 5.55 Method: SW8260B Hazardous Substance List - Volatile Organics Units:rc/Kg Analyte cAs #Goncentration RL PQL Acetone Benzene Bromodichloromethane Bromoform Bromomethane 67-64-1 7143-2 75-274 75-25-2 74-83-9 330 56 28 56 56 67 5.6 5.6 5.6 5.6 2-Butanone Carbon disulfide Carbon tetrachloride Chlorobenzene Chloroethane 78-93-3 75-15-0 56-23-5 1 08-90-7 75-00-3 50 5.6 5.6 5.6 17 280 56 56 56 83 2-Chloroethylvinylether Chloroform Chloromethane Dibromochloromethane 1 , 1-Dichloroethane 110-75-8 67-66-3 74-87-3 12448-1 75-34-3 560 56 56 28 56 110 5.6 11 5.6 5.6 U U U U U U U U U U U U U U U U U U U U U U U U J U U U U U U U U U U U 'l ,2-Dichloroethane 1 , 1-Dichloroethene cis-1,2-Dichloroethene trans- 1,2-Dichlo roethene 1,2-Dichloropropane 107-06-2 75-354 I 56-59-2 156-60-5 78-87-5 5.6 5.6 5.6 5.6 11 28 56 56 28 56 cis-1,3-Dichloropropene trans-1,3-Dichloropropene Ethylbenzene 2-Hexanone Methylene chloride 11 11 5.6 11 5.6 56 56 56 110 56 10061-01-5 10061-026 100414 591-786 75-09-2 20 4-MethyL2-pentanone Styrene Tetrachloroethene 1,1,2,2-f et achloroeth a n e Toluene 1 08-1 0-1 10042-5 127-18-4 79-34-5 1 08-88-3 56 5.6 11 11 5.6 280 56 56 56 56 1 , 1 ,1-Trichloroethane 1, 1,2-Trichloroethane Trichloroethene Vinyl acetate Vinyl chloride 71-556 79-00-5 79-01€ 108-054 75-01-4 5.6 11 11 11 11 56 56 56 56 56 Total Xylene 1330-20-7 22 110 Surrogate Recovery 1,2-Dichloroethane-d4 (SS-1 ) Toluene-d8 (SS-2) 4-Bromofl uorobenzene (SS-3) 104% 101o/o 97% CIC Limits 75 - 110 82 - 125 74 - 115 U - Not Detected at the Reporting Limit (RI) J - Analyte ddected below Practical Quantitation Limit (PQL) E - Extrapolated value. See renrn at dilution.''w'*S - Spike Recovery outside accepted recovery limits | - Compound detected above regulatory limit. X - Not Applicable.> Quelifiers: z - / Analyst Approved I l/14/2001 11:56AM Client Sample ID : Lab Sample ID : Date Collected : Date Received . Date Prepared : Date Analyzed : Percent Moisture : P3C7GL7 0l-6169-09A lt/0U200t tUtzt200r rUt3/2001 tUt3t200t ll Tl Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-6021 Client Project ID : Unocal Parachute Lab Work Order : 016169 Sample Matrix : Soil Lab ['ile ID : VOA3lll3\13904.D Method Blank : RBlll30l Prep Factor : I Effective Dilution : 5.66 Method: SW8260B Hazardous Substance List - Volatile Organics Units: pS/Kg Analyte CAS #Concentration RL PQL 'Ptt Acetone Benzene Bromodichloromethane Bromoform Bromomethane 67-64-1 71-43-2 75-27-4 75-25-2 74-83-9 340 57 28 57 57 68 5.7 5.7 5.7 5.7 2-Butanone Carbon disulfide Carbon tetrachloride Chlorobenzene Chloroethane 78-93-3 75-15-0 56-23-5 1 08-90-7 75-00-3 51 5.7 5.7 5.7 17 280 57 57 57 85 2-Chloroethylvinylether Chloroform Chloromethane Dibromochloromethane 1,1-Dichloroethane 110-75-8 6766-3 74-87-3 124-48-1 75-34-3 110 5.7 11 5.7 5.7 570 57 57 28 57 1,2-Dichloroethane 1,1-Dichloroethene cis-1,2-Dichloroethene trans-1,2-Dichloroethene 1,2-Dichloropropane 107-06-2 75-354 1 56-59-2 1 56-60-5 78-87-5 U U U U U U U U U U U U U U U U U U U U U U U U J U U U U U U U U U U U 5.7 5.7 5.7 5.7 1',1 28 57 57 28 57 cis- 1, 3-Dichloropropene trans-1,3-Dichloropropene Ethylbenzene 2-Hexanone Methylene chloride 1 0061-01-5 10061-026 1 00-41 -4 591-786 75-09-2 20 11 11 5.7 11 5.7 57 57 57 110 57 4-Methyl-2-pentanone Styrene Tetrachloroethene 1,1,2,2-T elr ach lo roethan e Toluene 1 08-1 0-1 100-42-5 127-18-4 79-34-5 1 08-88-3 280 57 57 57 57 57 5.7 11 11 5.7 1 ,1 , 1-Trichloroethane 1, 1,2-Trichloroethane Trichloroethene Vinyl acetate Vinyl chloride 71-55-6 79-00-5 79-016 108-05-4 75-014 5.7 11 11 11 11 57 57 57 57 57 Total Xylene 1330-20-7 23 110 Surrogate Recovery 1,2-Dichloroethane-d4 (SS-1 ) Toluene-d8 (SS-2) 4-Bromofl uorobenzene (SS-3) 105o/o 98o/o 97o/o QC Limits 75 - 110 82 - 125 74 - 115 U - Not Detected at rhe Repo,r'ting Limit (RL) J - Analyte deleaed below Praaical Quantiation Limit (PQL) E - Extrapolated value. See rerun at dilution. B - Analrte detected in lhe associated Method Blank)RL S - Spike Recovery outside accepted recovery limits | - Compound dctecred above regulato,ry limit. X - Not Ap,plicable. D> Qudifiers: / arriyst Approved ll/14/2001 12:07PM I Evergreen Analytical, Inc. 4036 Youngfield St, Wheat Ridge, CO 80033 (303) 42s-6021 Client Sample ID : Lab Sample ID : Date Collected : Date Received : Date Prepared : Date Analyzed : Percent Moisture P3CIGL6 0l-6169-10A tU0v200l tUr2t200t lUt31200t tUt3t200t 11.64 Effective Dilution : 5.65 Client Project ID : Unocal Parachute Lab Work Order : 0l{169 Sample Matrix : Soil Lab File ID : VOA3ll l3\13907.D Method Blank : RBlll30l Prep Factor : I Method: SW826OB Hazardous Substance List - Volatile Organics Units: FS/KS Analyte CAS #Concentration RL PQL Acetone Benzene Bromodichloromethane Bromoform Bromomethane 67-64-1 71-43-2 75-27-4 75-25-2 74-83-9 68 5.7 5.7 5.7 5.7 57 28 57 57 340 ., 2-Butanone Carbon disulfide Carbon tetrachloride Chlorobenzene Chloroethane 78-93-3 75-1 5-0 56-23-5 1 08-90-7 75-00-3 51 5.7 5.7 5.7 17 280 57 57 57 85 2-Chloroethylvinylether Chloroform Chloromethane Dibromochloromethane 1 , 1-Dichloroethane 110-75-8 67€6-3 74-87-3 12448-1 75-34-3 110 5.7 11 5.7 5.7 570 57 57 28 57 1,2-Dichloroethane 1,1-Dichloroethene cis-1,2-Dichloroethene trans-1,2-Dichloroethene 1,2-Dichloropropane 107-06-2 75-354 1 56-59-2 1 56-60-5 78-87-5 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 5.7 5.7 57 5.7 11 28 57 57 28 57 cis-1, 3-Dichloropropene trans-1, 3-Dichloropropene Ethylbenzene 2-Hexanone Methylene chloride 10061-01-5 10061-02-6 100-414 591-78€ 75-09-2 11 11 5.7 11 5.7 57 57 57 110 57 4-Methyl-2-pentanone Styrene Tetrachloroethene 1,1,2,2-T etr ach lo roeth an e Toluene 1 08-1 0-1 10042-5 127-18-4 79-34-5 108-88-3 280 57 57 57 57 57 5.7 11 11 5.7 1, 1, 1 -Trichloroethane 1, 1,2-Trichloroethane Trichloroethene Vinyl acetate Vinyl chloride 71-556 79-00-5 79-01-6 108-05-4 75-014 57 11 11 11 11 57 57 57 57 57 Total Xylene 1330-20-7 110 Surrogate Recovery 1,2-Dichloroethane-d4 (SS-1 ) Toluene-d8 (SS-2) 4-Bromofl uorobenzene (SS-3) 104o/o 102o/o 960/o QC Limits 75 - 110 82 - 125 74 - 115 U - Not Detected al lhe Reporting Limit (RL) J - Analyte detected below Practical Quantitation Limit (PQL) E - Extrapolated value. See renrn at dilution. B - Analyte detected in the associated Mahod BlankHl/^_ S - Spike Recovery outside accepred recovery limits r - Compound detected above regulatory limit. Y - 1i161 4pplicable. 2<-- Qualifiers: darratyst Approved 1l/14/2OOl I2:38PM 23 4r Evergreen Analytical, Inc. 4036 Youngfield St, Wheat Ridge, CO E0033 (303) 42s{021 Client Sample ID : Lab Sample ID : Date Collected : Date Received : Date Prepared : Date Analyzed : Percent Moisture : P3C2GL9 0l-6169-l lA tt/0t/2001 lllt2l200l lUt3t200r tUt3t200t 884 Client Project ID : Unocal Parachute Lab Work Order : 016169 Sample Matrix : Soil Lab File ID : VOA3I I l3\13908.D Method Blank : RBlll30l Prep Factor : I Effective Dilution : 5.48 Method: SW8260B Hazardous Substance List - Volatile Organics Units: rc/KS Analyte CAS #Concentration RL POL Acetone Benzene Bromodichloromethane Bromoform Bromomethane 67-64-1 7143-2 75-274 75-25-2 74-83-9 66 5.5 5.5 5.5 5.5 55 27 55 55 330 2-Butanone Carbon disulfide Carbon tetrachloride Chlorobenzene Chloroethane 78-93-3 75-1 5-0 56-23-5 1 08-90-7 75-00-3 49 5.5 5.5 5.5 '16 270 55 55 55 82 2-Chloroethylvinylether Chloroform Chloromethane Dibromochloromethane 1,1-Dichloroethane 1 10-75-8 6766-3 74-87-3 12448-1 75-34-3 100 5.5 11 5.5 5.5 550 55 55 27 55 5.5 5.5 5.5 5.5 11 1,2-Dichloroethane 1,1-Dichloroethene cis-1,2-Dichloroethene trans- 1, 2-Dichloroethene 1,2-Dichloropropane 107-06-2 75-354 I 56-59-2 156€0-5 78-87-5 U U U U U U U U U U U U U U U U U U U U U U U U J U U U U U U U U U U U 27 55 55 27 55 cis-1, 3-Dichloropropene trans-1,3-Dichloropropene Ethylbenzene 2-Hexanone Methylene chloride 10061-0'l-5 10061-02-6 100414 591-786 75-09-2 11 11 5.5 11 5.5 55 55 55 110 55 4-Methyl-2-pentanone Styrene Tetrachloroethene 1,1,2,2-I elr ach lo roeth a n e Toluene 1 08-1 0-1 10042-5 127-184 79-34-s 1 08-88-3 55 5.5 11 11 5.5 270 55 55 55 55 1, 1, 1 -Trichloroethane 1, 1,2-Trichloroethane Trichloroethene Vinyl acetate Vinyl chloride 71-55€ 79-00-5 79-01-6 108-05-4 75-014 5.5 11 11 1',1 11 55 55 55 55 55 Total Xylene 1330-20-7 22 110 Surrogate Recovery 1,2-Dichloroethan+.d4 (SS-1 ) Toluene-d8 (SS-2) 4-Bromofl uorobenzene (SS-3) 101o/o 105% 91o/o CIC Limits 75 - 110 82 - 125 74 - 115 U - Not Detected at the Reporting Limit (RI) J - Analyte detected below Practical Quantitation Limit (PQL) E - Extrapolafed value. See rerun at dilution. B - Analvte detested in lhe associated Melhod Blank'0--L- - -) 2t+ )z-/t4-_ S - Spike Recovery outside accepted recovery limits t - Cornpound detected above regulatory limit. X - Not Applicable. D> Quallfiers: Arrtytt Approved 11/14/2OOl 12:15PM 20 I r Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s{021 Client Sample ID : P3C2GL9DUP Client Project ID : Unocal Parachute Lab Sample ID :01-6169-12A Lab Work Order : 0l-6169 Date Collected : Il/0112001 Sampte Matrix : Soil Date Received : ll/l2l200l Lab File ID : VOA3lll3\13909.D Date Prepared : I lll3/2001 Method Blank : RBI I l30l Date Analyzed : llll3l2O0l Prep Factor : I Percent Moisture : I l.l2 Effective Dilution : 5.62 Method: SW8260B Hazardous Substance List - Volatile Organics Units: pg/KS Analyte CAS #PQLRLConcentration Acetone Benzene Bromodichloromethane Bromoform Bromomethane 67s,4-1 7143-2 75-27-4 75-25-2 74-83-9 90 68 5.6 5.6 5.6 5.6 340 56 28 56 56 2-Butanone Carbon disulfide Carbon tetrachloride Chlorobenzene Chloroethane 78-93-3 75-15-0 56-23-5 1 08-90-7 75-00-3 51 5.6 5.6 5.6 17 280 56 56 56 84 2-Chloroethylvinylether Chloroform Chloromethane Dibromochloromethane 1,1-Dichloroethane 1 10-75-8 6766-3 74-87-3 12448-1 75-34-3 110 5.6 11 5.6 5.6 s60 56 56 28 56 1 ,2-Dichloroethane '1 ,1-Dichloroethene cis-1,2-Dichloroethene trans- 1,2-Dichloroethene 1 ,2-Dichloropropane 107-06-2 75-354 1 56-59-2 15660-5 78-87-5 28 56 56 28 56 J U U U U U U U U U U U U U U U U U U U U U U U J U U U U U U U U U U U 5.6 5.6 5.6 5.6 11 cis-1, 3-Dichloropropene trans-1,3-Dlchloropropene Ethylbenzene 2-Hexanone Methylene chloride 10061-01-5 10061-02€ 100414 591-78€ 7s-09-2 10 11 11 5.6 11 5.6 56 56 56 110 56 4-Methyl-2-pentanone Styrene Tetrachloroethene 1, 1,2,2-f etr ach loroeth a n e Toluene 1 08-1 0-1 10042-5 127-184 79-34-5 1 08-88-3 56 5.6 11 11 5.6 280 56 56 56 56 1 , 1 ,1 -Trichloroethane 1, 1,2-Trichloroethane Trichloroethene Vinyl acetate Vinylchloride 71-55$ 79-00-5 79-01-6 1 08-05-4 75-01-4 5.6 11 11 11 11 56 56 56 56 56 Total Xylene 1330-20-7 22 110 Surrogate Recovery 1,2-Dichloroethaned4 (SS-1 ) Toluene-d8 (SS-2) 4-Bromofl uorobenzene (SS-3) 107% 119% 83% QC Limits 75 - 110 82 - 125 74 - 115 U - Not Deteacd at the Reporting Limit (RL) J - Analyte detected below Praaical Quantitation Limit (PQL) E - Extrapolated value. See rerun ar dilution B - Analvte deteaed in the associared Method Blank-var S - Spike Recovery outside accepted recovery limits '- Compound detected above regulatory limit. a - IJs1 Applicable.> Qualifiers: /xaill-.Approved 1 1/14/200) 12:53 PM Client Sample ID : P3C3GL2 Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO E0033 (303) 425-6021 Client Project ID : Unocal Parachute Lab Work Order : 0l-6169 Sample Matrix : Soil Lab File ID : VOA3lll3\13910.D Method Blank : RBlll30l Prep tr'actor : I Effective Dilution: 5.4 Lab Sample II) Date Collected Date Received Date Prepared Date Analyzed : 0l-6169-l3A : lll0l/2001 : ll/12/2001 : ll/1312001 : ll/13/2001 Percent Moisture : 7.56 Method: SW8260B Hazardous Substance List - Volatile Organics Units: US/Kg Analyte CAS #Concentration RL PQL Acetone Benzene Bromodichloromethane Bromoform Bromomethane 67-64-1 71-43-2 75-27-4 75-25-2 74-83-9 65 5.4 5.4 5.4 5.4 54 27 54 54 320 2-Butanone Carbon disutfide Carbon tetrachloride Chlorobenzene Chloroethane 78-93-3 75-1 5-0 56-23-5 1 08-90-7 75-00-3 49 54 5.4 5.4 '16 270 54 54 54 8'r 2-Chloroethylvinyleth er Chloroform Chloromethane Dibromochloromethane 1 , 1-Dichloroethane 110-75-8 67-66-3 74-87-3 124-48-1 75-34-3 100 5.4 11 54 5.4 540 54 54 27 54 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 107-06-2 75-35-4 1 56-59-2 156€0-5 78-87-5 5.4 5.4 5.4 5.4 11 27 54 54 27 54 cis-1,3-Dichloropropene trans-1,3-Dichloropropene Ethylbenzene 2-Hexanone Methylene chloride 11 11 5.4 11 5.4 54 54 54 110 54 10061-01-5 10061-02-6 100-414 591-78-6 75-09-2 4-Methyl-2-pentanone Styrene Tetrachloroethene 1, 1,2,2-T etr ach lo ro eth a n e Toluene '108-10-1 100-42-5 127-184 79-34-5 1 08-88-3 270 54 54 54 54 54 5.4 11 11 5.4 1 , 1 ,1-Trichloroethane 1, 1,2-Trichloroethane Trichloroethene Vinyl acetate Vinyl chloride 71-55-6 79-00-5 79-01-6 108-054 75-01-4 5.4 11 11 11 11 54 54 54 54 54 Total Xylene 1330-20-7 22 110 Surrogate Recovery 1,2-Dichloroethane'd4 (SS-1 ) Toluene-d8 (SS-2) 4-Bromofl ugrobenzene (SS-3) 100% lOOo/o 9OVo QC Limits 75 - 110 82 - 125 74 - 115 U - Not Detected at the Reporting Limit (RL) J - Analyte detected below hactical Quantitation Limit (PQL) E - Extrapolated value. See rerun at dilution. detected in the associated Method Bla* S - Spike Recovery oulside accepted recovery limits t - Compound detected above regulatory limil. X - Not Applicable. Qualifiers: B. Analyst Approved 1 1/1 4/2001 I :03 PM 1 ,2-Dichloroethane 1 , 1-Dichloroethene cis-1,2-Dichloroethene trans-1,2-Dichloroethene 1 ,2-Dichloropropane Client Sample ID : Lab Sample ID : Date Collected : Date Received : Date Prepared : Date Analyzed : Percent Moisture P3C9GL7 0l-6169-l4A tU0t/200t tv12/2001 lt/t3/2001 tr/13/200t tt.32 Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s{021 Client Project ID : Unocal Parachute Lab Work Order : 0l-6169 Sample Matrix : Soil Lab File ID : VOA3lll3\l39ll.D Method Blank : RBlll30l Prep Factor : I Effective Dilution : 5.63 Method: SW8260B Hazardous Substance List - Volatile Organics Units: rc/KS Analyte CAS #Concentration RL PQL Acetone Benzene Bromodichloromethane Bromoform Bromomethane 67-64-1 71-43-2 75-27-4 75-25-2 74-83-9 340 56 28 56 56 68 5.6 5.6 5.6 5.6 2-Butanone Carbon disulfide Carbon tetrachloride Chlorobenzene Chloroethane 78-93-3 75-15-0 56-23-5 108-90-7 75-00-3 51 5.6 5.6 5.6 17 280 56 56 56 85 2-Chloroethylvinylether Chloroform Chloromethane Dibromochloromethane 1 ,1 -Dichloroethane 110-75-8 67-66-3 74-87-3 124-48-1 75-34-3 110 5.6 11 5.6 56 560 56 56 .28 56 U U U U U U U U U U U U U U U U U U U U U U U U J U U U U U U U U U U U '1 ,2-Dichloroethane 1,1-Dichloroethene cis-1,2-Dichloroethene trans-1,2-Dichloroethene 1 ,2-Dichloropropane 107-06-2 75-35-4 1 56-59-2 156$0-5 78-87-5 5.6 5.6 5.6 5.6 11 28 56 56 28 56 cis-1,3-Dichloropropene trans-1,3-Dichloropropene Ethylbenzene 2-Hexanone Methylene chloride 11 11 5.6 11 5.6 56 56 56 110 56 1 0061 -01 -5 10061-02-6 100-414 591-78€ 75-09-2 20 4-Methyl-2-pentanone Styrene Tetrachloroethene 1, 1,2,2-T etr ach I o roeth a n e Toluene 1 08-1 0-1 104-42-5 127-184 79-34-5 1 08-88-3 280 56 56 56 56 56 5.6 11 11 5.6 1 , 1 ,1-Trichloroethane 1, 1,2-Trichloroethane Trichloroethene Vinyl acetate Vinyl chloride 71-556 79-00-5 79-01-6 1 08-05-4 75-01-4 56 11 11 11 11 56 56 56 56 56 Total Xylene 1330-20-7 23 '1 10 Sunogate Recovery 1,2-Dichloroethane-d4 (SS-1 ) Toluene-d8 (SS-2) 4-Bromofl uorobenzene (SS-3) 1O1o/o 1O3o/o 9}Yo QC Limils 75 - 110 82 - 125 74 - 115 U - Not Detected al the Reporting Limit (RL) J - Analye deleaed below Practical Quantitation Limit (PQL) E - Extrapolaled value. See rerun at dilution. B - Analyte detected in the associated Method Blank S - Spike Recovery outside accepted recovery limits * - Compound detected above regulatory limit. X - Not Applicable.-2u-HAr Qualifiers: FrryT Approved ll/14/2001 1:lOPlvl Client Sample ID : P3C4GL4 Lab Sample ID : 0t-6169-l5A' Date Collected : lll0l/2O01 Date Received : llll2/2o01 Date Prepared : ll/13/2O01 Date Analyzed : lll13/2001 Percent Moisture : 12.01 Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO E0033 (303) 42s-6021 Client Project ID : Unocal Parachute Lab Work Order : 0l-6169 Sample Matrix : Soil Lab File ID : VOA3lll3\13912.D Method Blank : RBlll30l Prep Factor : I Effective Dilution : 5.68 Method: SW8260B Hazardous Substance List - Volatile Organics Units: pg/Kg Analyte CAS #PQLRLGoncentration Acetone Benzene Bromodichloromethane Bromoform Bromomethane 68 5.7 5.7 5.7 5.7 57 28 57 57 67-64-1 71-43-2 75-27-4 75-25-2 74-83-9 340 2-Butanone Carbon disulfide Carbon tetrachloride Chlorobenzene Chloroethane 78-93-3 75-15-0 56-23-5 1 08-90-7 75-00-3 51 5.7 5.7 5.7 17 280 57 57 57 85 2-C hloroethylvinylether Chloroform Chloromethane Dibromochloromethane 1 , 1-Dichloroethane 1 10-75-8 67-66-3 74-87-3 124-48-1 75-34-3 110 5.7 11 5.7 5.7 570 57 57 28 57 1 ,2-Dichloroethane I , 1-Dichloroethene cis-1,2-Dichloroethene trans-1,2-Dichloroethene 1,2-Dichloropropane U U U U U U U U U U U U U U U U U U U U U U U U J U U U U U U U U U U U 5.7 5.7 5.7 5.7 11 28 57 57 28 57 cis-1,3-Dichloropropene trans-1, 3-Dichloropropene Ethylbenzene 2-Hexanone Methylene chloride 11 11 5.7 11 5.7 57 57 57 110 57 10061-01-5 10061-02-6 100-414 591-78$ 75-09-2 20 4-Methyl-2-pentanone Styrene Tetrachloroethene 1,1,2,2-T elr ach lo roeth a n e Toluene 1 08-1 0-1 100-42-5 127-184 79-34-5 1 08-88-3 57 5.7 11 11 5.7 280 57 57 57 57 1 ,1 , 1-Trichloroethane 1, 1,2-Trichloroethane Trichloroethene Vinyl acetate Vinyl chloride 5.7 11 11 11 11 57 57 57 57 57 71-55-6 79-00-5 79-01€ 1 08-05-4 75-O1-4 Total Xylene 1330-20-7 23 110 Surrogate Recovery 1,2-Dichloroethane-d4 (SS-1 ) Toluene-d8 (SS-2) 4-Bromofl uorobenzene (SS-3) 102% 102% 93% QC Limits 75 - 110 82 - 125 74 - 115 U - Not Detec'ted at the Rcporting Limit (RL) J - Analle detected below Practical Quantitation Limit (PQL) E - E:<trapolared value. See rerun at dilution. S - Spike Recovery outside accepted recovery limits r - Compound detected above regulatory limit. X - Not Applicable. 72 Qualifiers: B - Analyte the mmiated Method Blank Approved l1/14/2001 1:17PM I 107-06-2 75-35-4 1 56-59-2 156€0-5 78-87-5 Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO E0033 (303) 42s-6021 Client Sample ID : P3C5HS4 Client Project ID : Unocal Parachute Lab Sample ID : 0l{169-16A Lab Work Order : 016169 Date Collected : I l/01/2001 Sample Matrix : Soil Date Received z ll/12/2001 Lab File ID : VOA3lll3\13913.D Date Prepared : I l/1312001 Method Blank : RBI I l30l Date Analyzed : llll3/2001 Prep Factor : I Percent Moisture : 12.3 Effective Dilution : 5.7 Method: SW8260B Hazardous Substance List - Volatile Organics Units: pg/Ks Analyte cAs #RL PQLGoncentration Acetone Benzene Bromodichloromethane Bromoform Bromomethane 67-64-1 7143-2 75-27-4 75-25-2 74-83-9 68 5.7 5.7 5.7 5.7 340 57 28 57 57 2-Butanone Carbon disulfide Carbon tetrachloride Chlorobenzene Chloroethane 51 5.7 5.7 5.7 17 280 57 57 57 86 78-93-3 75-1 5-0 56-23-5 108-90-7 75-00-3 2-C hloroethylvinylether Chloroform Chloromethane Dibromochloromethane 1 , 1-Dichloroethane 110-75-8 67-66-3 74-87-3 12448-1 75-34-3 110 5.7 11 5.7 5.7 570 57 57 28 57 1,2-Dichloroethane 1 ,1-Dichloroethene cis-1,2-Dichloroethene trans- 1,2-Dichloroethene 1 ,2-Dichloropropane 107-06-2 75-354 '156-59-2 156€0-5 78-87-5 28 57 57 28 57 U U U U U U U U U U U U U U U U U U U U U U U U J U U U U U U U U U U U 5.7 5.7 5.7 5.7 11 cis-1, 3-Dichloropropene trans-1, 3-Dichloropropene Ethylbenzene 2-Hexanone Methylene chloride 10061-01-5 10061-026 100414 591-786 75-09-2 0 11 11 5.7 11 5.7 57 57 57 110 57 4-Methyl-2-pentanone Styrene Tetrachloroethene 1,1,2,2-T elrachloroethane Toluene 1 08-1 0-1 100-42-5 127-184 79-34-5 1 08-88-3 57 57 11 11 5.7 280 57 57 57 57 1 ,'1 , 1-Trichloroethane 1, 1,2-Trichloroethane Trichloroethene Vinyl acetate Vinyl chloride 71-55-6 79-00-5 79-01-6 108-05-4 75-01-4 5.7 11 11 11 11 57 57 57 57 57 Total Xylene 1330-20-7 23 110 Surrogate Recovery 1,2-Dichloroethane-d4 (SS-1 ) Toluene-d8 (SS-2) 4-Bromofl uorobenzene (SS-3) 101o/o 102o/o 88o/o QC Limits 75 - 110 82 - 125 74 - 115 U - Not Detected at the Reporting Linit (RL) J - Analyte detected below Praclical Quantitation Limit (PQL) E - Extrapolated value. See rerun at dilution. the associated Method Blank S - Spike Recovery outside accepted recovery limits t - Compound detected above regulatory limit. X - Not epplicable. vo Qualifiers: B- Analyst Approved 11/14/2001 l:25PM i Client Sample ID : P3C5GL6 Lab Sample ID : 0l-6169-l7A DateCollected : ll/01/2001 Date Received : ll/12/2001 DatePrepared : ll/1312001 Date Analyzed : llll3/2O01 Percent Moisture : 12.85 Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 425-6021 Client Project ID : Unocal Parachute Lab Work Order : 015169 Sample Matrix : Soil Lab file ID : VOA3IIl3\139l4.D Method Blank : RBlll30l Prep Factor : I Effective Dilution : 5.73 Method: SW8260B Hazardous Substance List - Volatile Organics Units: pS/Kg Analyte CAS #Concentration RL PQL Acetone Benzene Bromodichloromethane Bromoform Bromomethane 67-64-1 7143-2 75-27-4 75-25-2 74-83-9 69 5.7 5.7 5.7 5.7 57 29 57 57 340 2-Butanone Carbon disulfide Carbon tetrachloride Chlorobenzene Chloroethane 78-93-3 75-15-0 56-23-5 108-90-7 75-00-3 52 5.7 5.7 5.7 17 290 57 57 57 86 2-C hloroethylvinylether Chloroform Chloromethane Dibromochloromethane 1,1-Dichloroethane 1 10-75-8 67-66-3 74-87-3 124-48-1 75-34-3 1'10 5.7 11 5.7 5.7 570 57 57 .29 57 1,2-Dichloroethane 1 ,1-Dichloroethene cis- 1,2-Dichloroethene trans-1,2-Dichloroethene 1,2-Dichloropropane 107-06-2 75-35-4 1 56-59-2 1 56-60-s 78-87-5 29 57 57 29 57 U U U U U U U U U U U U U U U U U U U U U U U U J U U U U U U U U U U U 5.7 5.7 5.7 5.7 11 cis-1, 3-Dichloropropene trans-1, 3-Dichloropropene Ethylbenzene 2-Hexanone Methylene chloride 10061-01-5 1 0061 -02-6 't00-414 591-78-6 75-09-2 8 11 11 5.7 11 5.7 57 57 57 110 57 4-Methyl-2-pentanone Styrene Tetrachloroethene 1,1,2,2-f et ach lo roeth ane Toluene 1 08-1 0-1 100-42-5 127-184 79-34-5 1 08-88-3 57 5.7 11 11 5.7 290 57 57 57 57 1, 1, 1 -Trichloroethane 1, 1,2-Trichloroethane Trichloroethene Vinyl acetate Vinyl chloride 71-55S 79-00-5 79-01-6 1 08-05-4 75-014 5.7 11 11 11 11 57 57 57 57 57 Total Xylene 1330-20-7 23 110 Surrogate Recovery 1,2-Dichloroethane-d4 (SS-1 ) Toluene-d8 (SS-2) 4-Bromofl uorobenzene (SS-3) 103o/o 99o/o 92o/o QC Limits 75 - 110 82 - 125 74 - 115 U - Not Detected at the Reporting Limit (RL) J - Analyte detected below Praaical Quantitation Limit (PQL) E - Extrapolated value. See renrn at dilution. in the associated Method Blank S - Spike Recovery outside accepted recovery limits | - Compound detected above regulatory limit. X - Not Applicable. tu Quallfiers: B. Analyst Approved ll/14/2001 I:3) PM I Lab Sample ID Date Prepared Date Analyzed RBI I l30l tUt3t200t tt/1312001 Evergreen Analytical, Inc. 4036 Youngfield St., Wheat Ridge, CO 80033 (303) 42s-6021 Method Blank Report Client Project ID : Unocal Parachute Lab Work Order: 0l-6169 Lab File ID : VOA3lll3\13893.D Prep Factor : I Effective Dilution : I Method: SW8260B voA 8260 Units: pg/Kg Analyte CAS #RLConcentration PQL Acetone Benzene Bromodichloromethane Bromoform Bromomethane 67-64-1 71-43-2 75-27-4 75-25-2 74-83-9 2 1 1 1 1 1 60 10 5 10 10 2-Butanone Carbon disulfide Carbon tetrachloride Chlorobenzene Chloroethane 78-93-3 75-15-0 56-23-5 1 08-90-7 75-00-3 I I 1 1 3 50 10 10 10 15 2-Chloroethylvinylether Chloroform Chloromethane Dibromochloromethane 1,'t-Dichloroethane 110-75-8 67€6-3 74-87-3 124-48-1 75-34-3 19 1 2 1 1 100 10 10 5 10 1,2-Dichloroethane 1 ,1-Dichloroethene cis-1,2-Dichloroethene trans-1, 2-Dichloroethene 1,2-Dichloropropane 107-06-2 75-354 156-59-2 1 56-60-5 78-87-5 5 10 10 5 10 1 1 1 1 2 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 10061-01-5 10061-02-6 100-41-4 591-78-6 75-09-2 2 2 1 2 1 10 10 10 20 10 4-Methyl-2-pentanone Styrene Tetrachloroethene 1, 1,2,2-T etr ach lo roeth ane Toluene 1 08-1 0-1 10042-5 127-18-4 79-34-5 1 08-88-3 10 1 2 2 1 50 10 10 10 10 1, 1, 1 -Trichloroethane 1, 1,2-Trichloroethane Trichloroethene Vinyl acetate Vinyl chloride 71-55-6 79-00-5 79-01-6 108-05-4 75-01-4 1 2 2 2 2 10 10 10 10 10 Total Xylene 1330-20-7 4 20 Surrogate Recovery 1,2-Dichloroethane-d4 (SS-1 ) Toluene-d8 (SS-2) 4-Bromofl uorobenzene (SS-3) 99o/o 97o/o 98% QC Limits 75 - 110 82 - 125 74 - 115 U - Not Derected at the Reporting Limit (RL) J - Analyte detected below hactical Quantitation Limit (PQL) E - Extrapolated value. See rerun at dilution. B - Analyte detected in lhe associated Method Blank S - Spike Recovery outside accepted recovery limits X - Not fuplicable. '-P---Klo, Qualiliers: /nr:rrtyst Approved 11/14/2001 10:55AM I cis-1,3-Dichloropropene trans-1, 3-Dichloropropene Ethylbenzene 2-Hexanone Methylene chloride Evergreen Analytical, Inc Dale: l4-Nov-2001 CLIENT: Work Order: Key Laboratories 0l-6169 Unocal Parachute QC SUMMARY REPORT Laboratory Control Spike - generic Sample lD: LCSl11301 Client lD: Analyte Matrix: Soil Test Code: SW8260B Batch lD: VOA-3_011113A PQL SPK value SPK Ref Val Run lD: VOAS_0l1113A Seq No: 3tl882il LowLimit HighLimit RPD Ref Val 202 12',1 1N 150 161 163 137 't24 't16 144 165 1Zi 137 132 127 1B 123 122 't21 1m 119 132 123 180 125 173 127 12'l 158 Prep Date: 13-Nov-2001 Analysis Date: 13-Nov-2001 1:02 PM %RPD RPDLimit Qual Units: pg/Kg %REC Acetone Benzene Bromodichloromethane Bromoform Bromomethane 2-Butanone Carbon disulfide Carbon tetrachloride Chlorobenzene Chloroethane 2-C hloroethylvinylether Chloroform Chloromethane Dibromochloromethane 1 ,1 -Dichloroethane 1 ,2-Dichloroethane I ,1-Dichloroethene cis-,l,2-Dichloroethene trans-1,2-Dichloroethene 1 ,2-Dichloropropane cis-1,3-Dichloropropene trans-1,3-Dichloropropene Ethylbenzene 2-Hexanone Methylene chloride utMethyl-2-pentanone Styrene Tekachloroethene 1, 1,2,2-Tetrachloroethane Result 47.94 49.28 47.49 40.88 47.14 43.99 52.57 6.24 48.98 52.72 4.O7 51 .92 44.05 45.77 53.3 51.26 55.11 52.76 55.01 49.45 49.43 47.'.t3 49.66 M.62 50.57 45.97 45.46 47.92 44.66 60 10 5 't0 10 50 10 10 10 15 100 10 10 5 10 5 10 10 5 10 10 10 10 20 10 50 10 10 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 24 79 79 67 38 69 6l 77 82 61 36 78 58 7E 76 79 75 77 76 81 81 82 69 60 75 62 77 71 62 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 53 47 50 50 50 50 50 50 50 95.9% 98.6% 95.0% 81.8% 94.3% 88.0% 105.1% 92.5% 98.0% 't05.4% 96.1% 103.8% 88.1% 91.5% 't06.6% 102.5% 110.2% 't05.5% 110.0% 98.9% 93.3% 100.3% 99.3% 89.2% 101.'t% 91.9% 90.9% 95.8% 89.3% J J J J ND - Not Detected at the Reporting Limit J - An.l)4e detected below quantilation limits i - Not applicable to matrix spikes or LCS. E - Analyte detected above calibration limits B - Analyte delected in the associated Method Blank S - Spike Recovery outside accepted recovery limils R - RPD outside acceped recovery limits Qualltler:: I of 3 MW Key Laboratories 2479 Rjver Road, Unit A Grand Junction, Colorado 8 1502 Phone (970) 243-5311 Fax (970) 243-6010 Lab Sample ID: Client Sample ID: Client Project ID: Date Sampled: Date Received: Date Reported: 0t-1264 P3C6HS1+I Pond #3 Closure l1l15/01 lll15/01 @ 10:10 r 1/l 5/01 soI UNOCAL Dick Brammer 546 Main St. #404 Grand Junction, CO 81501 UOC Phone: 241-7632, Fax: 241-0065 HLA Phone: 242-5784 Sample Matrix : Preservation: QAQC Number: Pre-Treatments/dig.: coc 2388 EPA 3O5IA EPA IVIethod Parameter Results RSD Units MDL Date MCL Metals 6020 Total Arsenic 6.83 0.7 mg/Kg 0.06 I l/15/01 Notes: RSD - Relative Standard Deviation, MDL - Method Detection Limit, MCL - Maximum Concentration Limit., nd - not detected. tt/ t5/0t Page 1 \ MW Key Laboratories 2479 Nver Road, Unit A Grand Junction, Colorado 81502 Phone (970) 243-5311 Fax (970) 243-6010 Lab Sample ID: Client Sample ID: Client Project ID: Date Sampled: Date Received: Date Reported: 0r-1265 P3C11HS2+1 Pond #3 Closure I t/15/01 lll15/01 @ 10:10 tutSt0t SOIL LINOCAL Dick Brammer 546 Main St. #404 Grand Junction, CO 81501 UOC Phone: 241-7632, Fax: 241-0065 HLA Phone: 242-5784 Sample Matrix : Preservation: QAQC Number: Pre-Treatrnents/dig. coc 2388 EPA 3O5IA l N ) EPA Method 6020 Parameter Metals Total Arsenic Results RSD Units MDL Date MCL 6.68 2.3 mg/Kg 0.06 tUtst}t Notes: RSD - Relative Standard Deviation, MDL - Method Detection Limit, MCL - Maximum Concentration Limit., nd - not detected. tt/ t5/01 Page 1 I i MW Key Laboratories 2479 River Road, Unit A Grand Junction, Colorado 81502 Phone (970) 243-5311 Fax (970) 243-6010 LINOCAL Dick Brammer 546 Main St. #404 Grand Junction, CO 81501 UOC Phone: 241-7632, Fax: 241-0065 HLA Phone: 242-5784 Lab Sample ID: Client Sample ID: Client Project ID: Date Sampled: Date Received: Date Reported: 0t-1266 P3ClOHS3+I Pond #3 Closure tUtSt0t ll/15/01 @ 10:10 tLnSt0l SOIL coc 2388 EPA 3O5IA Sample Matrix : Preservation: QAQC Number: Pre-Treaftnents/dig. 0 EPA Method Parameter Metals 6020 Total Arsenic Results RSD Units MDL Date MCL 5.89 2.6 mg/Kg 0.06 ttlts/Ot i Notes: RSD - Relative Standard Deviation, MDL - Method Detection Limit, MCL - Maximum Concentration Limit., nd - not detected 1,t/ 15/0t Page 1 MW Key Laboratories 2479 River Road, Unit A Grand Junction, Colorado 81502 Phone (970) 243-5311 Fax (970) 243-6010 UNOCAL Dick Brammer 546 Main St. #404 Grand Junction, CO 81501 UOC Phone: 241-7632, Fax: 241-0065 HLA Phone: 242-5784 EPA Method Parameter Metals 6020 Total Arsenic coc 2388 EPA 305 I Results RSD Units MDL Date MCL % RECOVERY 9s.78 l1l15l0t Lab Sample ID: Client Sample ID: Client Project ID: Date Sampled: Date Received: Date Reported: Sample Matrix : Preservation: QAQC Number: 0I-1266 SPIKE P3CIOHS3+1 Pond #3 Closure tUtSt0t 1l/15/01 @ 10:10 lutSt0t SOIL \ Notes: RSD - Relative Standard Deviation, MDL - Method Detection Limit, MCL - Maximum concentration Limit., nd - not detected. Lt/15/0r Page 1 ,i I ffi . rrrttr{r- tu I r..r ffi .i-.lffiffi: I WW Key Laboratories 2479 River Road, Unit A Grand Junction, Colorado 81502 Phone (970) 243-5311 Fax (970) 243-6010 Lab Sample ID: Client Sample ID Client Project ID: Date Sampled: Date Received: Date Reported: LAB BLANK Pond #3 Closure I 1/15/01 ttltsl0t @ 10:10 I 1/1 5/0 I WATER at' l LINOCAL Dick Brammer 546 Main St. #404 Grand Junction, CO 81501 UOC Phone: 241-7632, Fax: 241-0065 HLA Phone: 242-5784 Sample Matrix : Preservation: QAQC Number: Pre-Treatrnents/dig. : EPA Method Parameter Results RSD [Inits MDL Date MCL Metals 6020 Total Arsenic 0.00006 mglL 0.06 I l/15/01 Notes: RSD - Relative Standard Deviation, MDL - Method Detection Limit, MCL - Maximum Concentration Limit., nd - not detected. rt/t5/0t Page 1 JK*,"*", Appendix E AGENCY CORRESPONDENGE AND LETTERS 'ruL-22-Et? 13.51 FROU.HARDING LAwEoN ABaoc. ID.goa2E24ElGl 07/2ltgi 08:ll trlI S0ilTEgSlES CDff,E H^'rlT PAGE 2/2gogt STATEOFCOIOI(ADO Frybrcr,(hurrrir-skqft,harirBlcl f&d opct5rJ&rpfry*htsrrrdmrac* C lt p4 dM HA'ATDOIII ilmilXJ pw/l5rE tAIrOInII qu3(Il @ {IoECbrYord(f-A AnS.ChM.hllt2 Ocav:t A&ndc ffi2-1580 CnadjtnCq,Colcr&lr5m-Iln6ltlleBGlESL:lsm DlFatuDrartrSlf*tro$,tT$l' ld662aart5 JUlyZl,1997 Itilr. BiohsdL fucr, ldErtrr ttnmdCcportim P.O. Btr 9r, ttraeht, Cotsdo 81635.007 Hl{tFst{fr ttt qr5 F&t t Lp S"I^rrtrf oh*.r[+r,.E!. tFltt T'7gl49?,.597lD-'l{rs t[t BEt Clonur Plt fu Taporrry Birfu L 4 rod 3l rsil CImc PIll fu tto Courtmdim Crnt Eoet Du{ PrrM CtGkSd! OA Upp& Fidlily DE{ ifr. FrqIFrGr, ltr Coludo Uesrud of h$UE forlL d ErvtrmeA, Erartous filrtdrtr pd flese Melgmrrt, Divido (fu DtyHcr[ nndtd E eEaE .r i'g frE F&lic mo pciod sn ihe !bou. rr&urod CXolurt EIEs. fbcrtert, bd o E pveicns rrflifi oftto GbEE llas, wE tFouy rygrwe tn RCRA Ctoil. Ct'ruc HE fu Try E .irr l, 2. qd 3 Gd b AwsErdor Cqllloldhg Pqd. [f ytu hcrE ry grfrig rugrding lhcs trilm, plpre crll ua s CJO3) 692-3356- Ldrr PcmiEudcryllrethir Fcdut FriHicr ProFUI oq Erdr:ir,bB-Dsmdg CDPHEIIIIEMD ScUcDdr, EPA Addd CoW Dsft6lu of oanlopmt ILvidBmtrq AOO Jul-22-99 04:28pm From-HLA COI\ISTRUCTI0N DIV 07 /22/gg 15:36 Ef97028593al +303221 I 361 UNULAL AA\ T-583 P.02 F-183 UilOGAL@ Unocal Corporedoa OhrsEilied Businreses PO Eor 907 10705 Counry Road 215 Parachute. colorado E1 635 Telephone (grct 205-7600 Facsimile (s70) 245-9334 July'1, 1999 Bichard L Bmmmer R€Eidenl iarrrsEi Erwrloononret homgoiation Scrvioa Mr. Gregg R. Squire Colorado Department gf Natural Resources DMsion of Minerals and Geology 1313 Sherman Strest, Room 215 Denve( Golorado 80203 UnocalTamporary B.Fin No. 3 Salt Disposa! Project Parachute, Colorado Dear Gregg: The purpose of thls letter is to inform the Colorado Division of Minerals and Geology (DMG) of the Unocal Oil Company of Callbmia's (dba Unocal) intent to place certain uraste materials in tre Unocal Parachute Creek Shale Oll Project mine as part of the RetoruUpgmde dEcommissioning and closure activities atthe Unocalfacility near Paradrrrte. Colorado. The decommissioning and closure activitiEs ane scheduled for la6 summer 1999 and 2000. Unocalhas revlened state environmental prograrns and conesponding regulations that may affed the projec{. This letter describes horv waste materials willbe managed in aocordance with the applicable regulations and solicG DMG's comments on our proposed approacfi. Wasta Materials The Unocal Paracfiute Creek Shale Oll Project conslsted of a 13,500 ton-perday mine, a 10,000 barrel-perday abweground Rdort Facility. where oilshale was heated to recover raw shale oil, and a 10,000 barrel-perday Upgrade Facll3ty where raw shale oil uras @nvert'Ed lnto syncrude. Dudng the period of operations, a series of surf;ace impoundmenb at the Upgrade Facilfi received trcaEd nraters fiom process areas. Procgss waters floued fiom the Upgrade Facility production units through the oily water sewer lines, the API Separator, and lnto the Active/lnactive Basins. These waters were then eused to moisturize and cool retorted shale- \Mten watef production exceeded the amountthat could be reused, tfie waterwa's diverted from the Ac{iva/lnadive Basins through the Plant Effluent Llft Station to the Holding Pond and the three Temporary Basins located atthe Upgrade Facility. Jul-22-98 04:28pm From-HLA C0I{STRUCTI0N DIV o7 / 22/ SS t5 z 27 8S7 o2I593 34 +303221 I 361 UlvA! AItr T-583 P.03/tZ F-483 cregg Squire, (DMG) July 1, 1999 Page 2 of 3 Process waters stored in the Unocal Upgrade Facilrty basins from 1991 were characteristt'cally hazardous due to elevated concerrtrations of arsenlc and benzene and were regulated by the Hazardous Matedals and Waste Managemefi Division of CDPHE. Unocalbegan closure of the basins in 1994, and to date, the Astive Basin, lnactive Basin, Holding Pond, and Temporary. Basin Nos. 1 and 2 have approved clean dosure ceffications firom CDPHE. As part of closure, Unocaltreated approximately 25 miltion gallons of hazardous wastanrater to reduce the aeenic conoenhations to nonhazardous levels. Temporary Basin No. 3 is the last basin to be closed and contains approximately 10 million gallons qf nonhazardous wastewater. To compleE closure of Temporary Basin No. 3, Unocalwillevaponate the 10 milllon gallons to approrimately 2.5 million gallons of nonhazardous liquid and treat the water in a submerged quench evapomtor. Because the vrater is high in total dissolved solids (IDS), the finalteatnent willyield approximately 2000 tons of a nonhazardous salt materialthatwlll subscquently be solidffied wtth fly ash or cement klln dusL wttich wlll increase the amount of materialto about 4000 tonB. Based on bencfi scale tests, fie saft material is erpested to be nonhazardous. Unocal conducted pllot Esting of submerged quenc-tr evaporabr systems ln June 19e9. Atthattime, samples of the satt matErialwere collested fortesting to confirm that lt is indeed nonhazardots, ln addilion, Unocalwill colleet sampl* of the material when full scale operations begin in 2000 to confirm the characterization of the materials- AnalyticalresuJts of the salt materialfrom the pilottests and fullscale operation wtll be provlded fur your review. Unocalwill place the solidified nonhazardous material in an engineered rcpository in the Unocal Panactrute CreEk Shale Oil Project oil shale minE, as further described beloral. No hazardous wastes will be placed in the mine- Repository Design The repository will be located just inside the rnine in an unused heading orffthe Conveyor Drlft, as shonn in Figure 1. Access to the area wlll be through the Main Reftrm Airway and the 106 Drift, as shown in Figure 2- Figure 3 shovrrs a concepfual isomEtrlc of the rEposibry. ln general, a 1-fostthict sand base wlllbe placed in the repository and then werlain with a 60 mil HDPE llner or40 mil reirrforaed PP linerthat will be anchorsd irrto the ribs of thE heading. A z-foot protective layer of sand will be placed on top of the liner, as shorrn in Figurc 4. This portion of the mine is dry and no urater is erpec{ed b enbrthe heading. Nevertheless, the reposltory is deslgned to keep uraterftom entering and mntacting thE uraste mabrial, and to eliminac migration of liquids from the cell, if any. Therefore, once the solidified salt material has been placed in the repository, a @ver liner will be placed over thE materiat and welded to the boftom and vrrall liner as shown in I Ju l -22-99 01 r 28pn F o7/22/99 15:27 ron-HLA C0IISTRUCTI0N DIV +303221 I 361 A.ug - _-__ T-583 P.01/12 F-183 +!l_ey ESgzozss93J4 Gregg Squire, (DMG) July 1,'1999 Page 3 of 3 Figures 5 through 7. The heading wtth the totally-sealed reposltory willthen be bermed offto dbaltour any later traffic into the area. Regulatory Compliance The satt material that will be placed in the repository is a nonhazardous solid uraste resulting from the final treatment of wasfierreater stored in Ternporary Basin No. 3. As describEd above, the materialwill not be a characteristic or listed hazardous \i/aste according to the regulations in 6 CCR 1007{, part 261, and will not be regulated under the RCRA hazardoue waste regulations. Because the mlne and retort facility are regulated under the Colorado Division of Minenals and Geology (DMG) Permit M-78.263UG, the plaoement of the salt material in the mine is also exemptffom the stab solid waste regulatlons as stated at 6 GCR 1007-2, section 1.4.2. That section states that facilities for solid raraste disposal are exempt from the solid vnaste permifting provisions where a person "engaged in mining operations permitted by IDMGI performs solict waste disposal of mlning or other solid wastes generated by such operations wifrrin the permitted area for suott operatlons." No additional permits appear to be necessary for placement of the materials in the mine. Nonetheless, Unocal notified Ms. Donna Stoner (CDPHE) regarding solid urasb and Mr. Joe Sctrie{felin (GDPHE){razardous waste, regarding the mine permit, to confirm that the GDPHE ls in agreemEnt wtth the proPosed approach. A copy of Ms. Stone/s approrral letter dated June 18, 1999 is atached- Unocal will schadule contrac'tors to begin construstion of the reposibry later this summer and begin placement of material in the spring of 2000- This letbr is intended to inform you of the underground repository as we continue to decommission the Parachute Creek Shale Oil Shale Facilities and solicit any comments CDPHE may have with this proposed approaclr. Please call me al97U2E5-7600 exL?22 if yotl have any questons or wlsh to arrange yoursite vis'tt l'll be orfi of the office July 12-1S. Sincerely, Richard L. Brammer Asset Manager Attaoh. Jul-22-99 01:29pm From-HLA C0I\STRUCTIOiI DIV +303221 I 36t T-583 P.05/12 F-183 STATEOFCOLOTUDO Eif OilqrtGwnf |rnGEl5ltdr &qdrrCIrcca arft1d 5 p-mi*.ad i'rp.a,lqg d|a hoilf end cnviorrarrrr of drc popE of Cnd lusin RcrinelOfficr 2r:l 5. G.t 9- REIlrGradtndcr. @ AS0t-276! fer lgroa 2{8.7t9C Jfi 2 I lssg h\ CdoradoDuruntnr oftutEfkdA."'ardErvimnrna alune 18, L999 Ilti. Leon Pahlar, Ph.o-, senLoE Scient,ist MvLsor Unocal CorporatlonP.o. Box 9O?Paractrute co 81635 EE: Unocal. Teuporary Basin No.f salt Disposal Project Patraehute, Gartield Countsy, Colofado fhe C'olorado Delnz{oenE of Rrblic Health and, EnvironDen€, HazardousUaterials and Waste lttanageTerrt Division has reviewed the tenporarysasin #3 SaIt X"reatnent and Dlsposal Plan for ttre above referencedsite. The report tras subnitted for revier June Z, 1999. lthe Prrrpose of the t-reatuent and distrlosal activities is to coaplete ttreclosure of TeBEorary Basin No. 3. After carGful conslderation ve are pleased to grant an apprsvial ofttre t Eoposed treatment and dlsposal activitiea to be corrducted attlris site. Bouever, placement of the salt naterial ln the uinenust be in eoupliance with the Colorado Division of t(inerals andGeology reEu1atl,ons. Iour coSreration Ln dealing ;lroperly witlr tbis site ls a;rpreciated. Should you lrave any gue-stions concerning thls letter, fee)- free tocontact ue at 970-24A-7168. 0 Dorura Stoner enrlronnenta1 ProtectLon Specialist So],l.d Baete UnItempl:lance prograE :le l{r. ,foe SchlGftelln, CDEEE, Denver 8W GAR MTO 4EEiIe ^a.nf Aa rD lta1---^^-- r a tra rc2 rrt,t,E R E P o 6 YroFLoc4T Jul-22-89 01:29pn From-HLA C0IISTRUCTl0t{ DIV a.Jf, J +3032211361 a\ I T-583 P.06/12 F-183 I I a ! a,t aa a aa ata Io A/ a a {r i1 I I V + \. a a a a a aI aa a I a at tturl, colrtroe a J -;\- r-i\ rl I &i%Ft I a a aa a I t tj I .D.t ,tE I 1 hnCrr1lC + CFI CFI =, a \ HrrdnE lrwson Aseociabe Enoheerlm ano ErnTlmnmeitat Servhes EFim'--' "- .tog'riEnsEE-''ltl=u. {q3!91 iline Repository Locdion Unocal Gorporiation PandruE. Colorado FIO U RE 1 o^rE ' "' '''' qEviEd EiH 4t21Ets AP PEOVED -FioF6aa , oa or.ot earnIt^ lsrrxEYt CFI t T- 5 8 3 F- 1 8 3 P. 0 t /1 2 62- - HE B H= E E rI E B d * a r 6 -5 E c S He i e E r- l E - Ea i .r r cl t l ,r t < . ES P E = E6 6 6 t r , &i ? 7 a 6 +3 0 3 2 2 1 l3 6 l ss i F [ r lN 3 l { d n o 3 ra Y S H ol E 6 00 2 ) AV A U V rQ t n J ' : l u Nl v h Ju l - 2 2 - 8 0 04 : 2 O p m Fr o n - H L A C0 t t l S T R U C T I 0 I ' l D I V oz \\ tf z(fF_ ugI s PE E ff i t s r E EE i H s HE E f r E E ooz= g,oF]APE fi sG>wz z, < =d tE5 : eE 8 - ' a_ - t aoEH a ! o E; I Fg E % % Et ieEH F=ulEG.6Eou=o(, 4 oo i Ep B eE b = = 2e 2 a EE H F sH u E 2Lt TL=olr l j^ ?= e E 99 ' o l Eg E E {-8 =a=I .- - - - - - - - - - - . - - - lH l l iU r l tr i i II T- 5 8 3 P. 0 8 / 1 2 F- 1 8 3 +3 0 3 2 2 1 1 3 6 1 E !7 lo I o sl E l zt l-$ l l EO }F q EH E L I U5 ?l P I 3s ?[ | l* l UI Io l lr ot l s En l € r le ; l E. ; I I *; ; I I E 'E E= l () I o= l FI lJ r l =lolal -lul :l r, n l ol JIol LA.(ox9) IF tr J ,t 0 t: = -r fi FL ) ot lr ,zJ& xlr lotd(, l. loi: .jUFo.Jr{oN 6U1 !n)s tr 1d+l. tzF \< 6 s8uE o- < ou _. i i == ** of , gr { tr J anqfoo Ur>u , F? E@60EEx€Ef ; IEOdt> 'n j 5E LX U o- J Eo g, z t! aha/ l F - sZ . () Oo&<L *Jzz. lF IJxlr Joa2oN UJJF_xFot2Flo! 4)FxL. l Folr lotioCI o EE E HE 6 -E E ,t ! ll z ()u,FUJ -z,oqzo=E, tr Jo-o ut aL !r Ut an4q, :ae=Fo-l ddzlLo 6LJ EEHE (: l t :E I E jjot t (e 3 LJ IAE2o(, EFo.t6. 'r J>UEHEE l. t = (a C t Vl ah2 EP tf i EQ3s -r - Y \\ t-)E- / / / qlrt3u1 IN \ \ \ \ oo . q , , , i \ II T- 5 8 3 P 0e A 2 F- 1 8 3 +3 0 3 2 2 1 I 3 6 1 Ju l - 2 2 - 9 8 01 r 3 0 p m Fr o m - H L A CO N S T R U C T I 0 N DI V UqblEIr {T JEs UB AL :rE ordl t\ /+ LJ46[]oEd-c oE'Qod()OJ r= =- rl o )( o=E >a - o.l7l- |[ lEJ(fl-&UC'2ot ) toEEEg Ei I e: !: -t ct t E co E' i E ?F f = tn t ; IE ,/ I:GiEL) Eusgl r{c) (JUu6 ( st n EL< - Fi lr I Ct t Eo - E+ tE= 2lr l tr JL)5ilLIFa=IzIF() tr lU' cuo(,=h h2 \ o=d i.Fi7, &EP G6ooa{6r \ t '/ ' t t - ^l r . o T at / r ? l r n It IIIiI ! tI I T- 5 8 3 P. t 0 / 1 2 F- 4 8 3EI ' +3 0 3 2 2 1 I 36 t Ju l - 2 2 - 8 9 04 : 3 0 p m Fr o m - H L A CO N S T R U C T I 0 l t l DI V gDtr J{E JIEian.) (, LIh) 0 / _) .{ llago(. )o) r2 r\ (l HO =E1C 5 Irl IFrl trJ(,l.nut-oI k0a:clL !E (o-- l g\ l or tt II t ia a a-oIsG 'r . 3 =f i I Et J gt c EE E E. : tE . E Y a e' = - Li t i \ . ., , ' r { r ' . , * . -1 . . \ \ xlr l .;:l ,' t ,, t i:: fi ;-Eu il a =c z.o=E. J(JLLzo()z. l! Iz.oC) Il lUI E3wEoC)UIE frBq,2h I?rIIA:1 .qIIIIIIIII I:TultIaar i /\ \ -n1l \ uE6t, ^c . G t ae / ? 2 / r i ra c c a o t a , oi IIII I )E ( I T- 5 8 3 ? 11 / 1 2 F- 4 8 3 +3 0 3 2 2 1 I 35 t Ju l - 2 2 - 9 9 04 : 3 0 p m Fr o m - H L A C( ] N S T R U C T I 0 N DI V to lo ll J lstu14 , #r 9 FU6E519 Jatro Fo: IJlI E.cr r Ea \ -. .- - - d g . i . . S q , , . .. (li oo:N+ EE oI'aso()0t c. 2 rr l J 5P Za JE L oJ-FrlaJ(,FEIl(,Iot, E a€ooI$E, .E: I 3 EE EF f I{(l(l 4) lo ,G .&tEulCt IElE toau6 ( \. / [t :$:II i .; !c1i a.d19 N U. 6! gHH ,akG, f,C9,o(),tL I,ot-or- u6 \ |J ) c{o{ \ EuIUfrEdU3 oE iItrt{9FItIiIIIIIIIti,II:tIIIiiII! II4ai -' 1 I GE2t-. { (L&Vdo! (J-(,ooNot@ /\ \ \ Ur*+r za t D l r f i IT l. t rr j) I\ I za a a a a c a t oQ T- 5 8 3 P. t 2 / 1 2 F- 1 8 3 +3 0 3 2 2 l l 36 t Fl i 3(Lua; .l S' (o-oJL ,E{ r, =E 2 eH 8= F aoElIoisEa E p# E; : EE E EB ; 'tII!!IIIiiItr;. . . i' IIIIi(-s. t; IIIIIIIIIII Jts - lr JozoEvtz. (E)soEoo E5UUIGg(JUIAf; F1EIU(, lr@c.Io,sd6o5tn LJor!=ooE IIIIIIIL s' F i 5F ' ulEI 6tuIdB . 3E -- .r ' IItIIIIIIt ,/#)' g=l-g)L' tr JfiF G:l ,i l $ IIIIII .f i f f i hl dr i 6r - ul 'EI 6Ju= Jtr JoJ$oFGtr j z. lILo ;Es- - r. { Lktb(l E25 .:6ELBp- u. ,E,H6;0 '6 ' zqz51 , \ P\Iq a,t lr Ji I=(, JaLLJoftz.=AoF- -) I6la fi , n a o a rr t tr , i ga a r a a r a r a l l l ;\ i III D ( I I I \ \il ( l; II e IiI t UNOCAL@ Unoca! Corporatlon R€al Estate, Remediation Servicos, Mining Operations 546 Meln Sl. #404 Grand Junction, Colorado 81501 Telephone: (970) 241 -7632 Facsimile (970) 241 -0065 April 12,2001 Rlchard L Brammer Aros Manag€r Eastem Regbn Mr. Gregg R. Squire Division of Minerals and Geology Department of Natural Resources 1313 Sherman Street, Room 215 Denver, Colorado 80203 !lv: Richard Brammer N Dear Mr. Squire: Unocal would like to change the location in the Long Ridge Mine of the approved depository for the solidified salts recovered an the closure of Temporary Basin#3. The requested alternative location is within the ore storage gallery toward the south wall and beyond the draw down cone of any reclaim feeder. Being in a dead storage area the material would not be disturbed in any future activity if the mine were restarted. This location is dry and has a floor comprised of twenty feet thickness of concrete separating the storage area from the lower reclaim feeder tunnel. This dry, sealed area would preclude the need to contain the stabilized salts within a wrapping, as was the previous depository configuration. The materialwould be stacked on the floor; covered with the high-density polyethylene pond liner and guarded with concrete barriers so as to prevent future disturbance from any renewed activity. The bench testing has shown the solidified material to be wellwithin the parameters of safety as depicted by the Toxic Characteristic Leaching Procedure. The leaching limits of arsenic from Unocal's testing were 0.3 to 0.4 ppm. are below the RCRA hazardous limits. l- Ref: Permit number 78-263 Attachments: Map of location Laboratory data ..! L----l L----t L_.J L---l f"--it! 'l I I I I t tI '--l I I I I -----J L-- rI I I t I t I I I I I I I I L r I I iL_iI.-.,L [-L- |.- a J a I E-t' !- -- -'i3 2 E-t 1{ t L. IN 1{t{il -'l I I t- 3 lt J t5 3t 5 4_sr,o 9 o o d zoo' l*rmr ooA' a I LOiIG RIDGE }IIT{E l MW Key l:boratories 2479 River Road. Unir A Grand Junction, Colorado 8 l -502 Phone (970) 243-531I Fax (970) 24-1-60t0 UNOCAL Dick Brammer 546 Main St. #404 Grand Junction, CO 8l -501 UOC Phone: 241-7632. Far: 241-0065 HLA Phone: 242-5784 EPA ll{ethod Parameter I\{etals Lab Sanrple ID: Client Saurple ID: Client Project ID: Date Sampled: Dale Received: Date Reported: 0l-0156 uol-10 TINOCAL TEIT{P 3 3/13/01 3/13/01 @ 17:00 3n6t0r SOLIDS coc2208 TCLP EXTRACTION Sanrple Matrix : Preservation: QAQC Number: Pre-Treatmens/dig.: Results RSD Units MDL Date N{CL 6020 6020 TCLP Arsenic TCLP Selenium 0.30 nd 0.06 0.06 mg/L mg/L 3/t6t0t 3/t6/0t Notes: RSD - Relarive Standard Deviation, MDL - Merhod Detecrion Limir,MCL - Maximum Concentration Limit., nd - not detected. )/ 16/0t l':r.4c I A na lyst/l(cv icwcr 1.5 nd I mafrepoCI0 Key l"aboratories 2479 River Road. Uuit A Grand Jrurction. Colorado 8 1502 Phone (970) 241-53 I I Fax (970) 243-6010 UNOCAL Dick Branmrer 546 Main Sr. #404 Grand Junction, CO 81501 UOC Phone: 241-7632, Fax: 241-0065 HLA Phone: 242-5784 EPA I\Iethod ;, Parameteri_ _:::.:..::_i:. IUetals Results RSD Units MDL Date MCL Lab Sample ID: Client Sample ID Client Projecr ID: Date Sampled: Date Received: Date Reported: Sauple Mauix : Preservation: QAQC Number: Pre-Treatrnens/dig.: 0l-0155 uol-9 I.'NOCAL TEII{P 3 3/13/01 3/13/01 @ l7:00 3/16/01 SOLIDS coc2208 TCLP EXTRACTION 6020 6020 TCLP Arsenic TCLP Selenium 0.30 nd 0.7 nd mg/L mg/L 0.06 0.06 3n6t0t 3/16t01 Notes: RSD - Relative Standard Dcviation, MDL - Merhod Derecrion Limir, MCL - Maximum Conccntration Limit., nd - not dctccted 1/ 16/01 I':rgc I Analyst/ltcv icwcr I :r I I MW Key l-aboratories 2479 Rivcr Road. Unit A Grand Junction. Colorado 81502 Phone (970) 24-1-53I I Fax (970) 243-60l0 UNOCAL Dick Brammer 546 Main St. #404 Grand Junction, CO 81501 UOC Plrone: 241-7632, Fax: 241-0065 HLA Phone: 242-5184 Lab Saurple [D: Client Sample ID Client Proiecr ID: Date Sanpled: Date Received: Date Reported: Sanple Matrix : Presen,ation: QAQC Number: Pre-Treauuens/dig. 0l-0154 trol-7 TINOCAL TEI\{P 3 3/r3/0r 3/13/01 @ l7:00 3/16/01 SOLIDS coc2208 TCLP EXTRACTION Units I\{DL Date MCL 6020 6020 Metals TCLP Arsenic TCLP Selenium 0.40 nd mg/L0.3 nd mg/L 0.06 0.06 3tr6t0r 3n6/01 J Notes: RSD - Rclative Standard Deviation, MDL - Merhod Detection Limir, MCL - Maximum Concentration Limit., nd - not dctectcd. J/ t6/01 l'agc t s A nalyst-/l(cvicwcr :r EPA l\{ethod Parameter I I mdepom Key Laboratories 2479 Rivcr Road, Urrit A Grand Junction. Colorado 81502 Phone (970) 243-531 I Fax (970) 24-1-6010 UNOCAL Dick Brammer 546 Main Sr. #404 Grand Junction. CO 8l -501 UOC Phone: 241-7632, Fax: 241-006-5 HLA Phone: 242-5184 EPA l\{ethod Parameter Metals Lab Sample ID: Client Sample ID Client Proiect ID: Date Sampled: Date Received: Date Reported: Sample Matrix : Presen,ation: QAQC Number: Pre-Treatuents/dig. 0r{ls3 uol{ UNOCAL TEMP 3 3/13/01 3/13/01 @ l7:00 3/16/01 SOLIDS coc2208 TCLP EXTRACTION 3lt6t0r 3tr6/0t Results RSD Units MDL Date MCL 6020 6020 TCLP Arsenic TCLP Selenium 0.43 nd 0.06 0.06 0.6 nd mglL mg/L Noles: RSD - Relative Standard Dcviation, MDL - Mcthod Dctection Limit, MCL - Maximum Concenration Limit., nd - nor dctected J/ t6/01 l't,gc I a A na lyst/l{cv icwcr ii il rl t t ; MW Key l-aboratories 2479 River Road. Unir A Graud Junction. Colorado 81502 Phone (970) 24-1-5-11 I Fax (970) 243-6010 UNOCAL Dick Branurrer 546 Main St. #404 Grand Junction, CO 81501 UOC Plrone: 241-7632. Fax: 241-0065 HLA Phone: 242-5784 Lab Sarrple ID: Client Sample ID: Clieut Project ID: Date Sampled: Date Received: Date Reported: Saurple Matrix : Presen,ation: QAQC Number: Pre-Treatments/dig.: 0l-01s2 uor-3 UNOCAL TEI\{P 3 3/13/01 3/13/01 @ 17:00 3/16/0t SOLIDS coc2208 TCLP EXTRACTION r EPA l\Iethod Parameter Metals TCLP Arsenic TCLP Selenium 0.7 3.2 mg/L mg/L Results RSD Units MDL Date MCL 6020 6020 0.42 0.07 0.06 0.06 3t16t0l 3lt6/0r T Notcs: RSD - Relative Standard Deviation,MDL - Method Dctecrion Limit, MCL - Maximum conccntration Limir., nd - not detected 3/ t6/0t I'aiic I Analyst/ltc vic wcr I WW Kcy Laboratories 2479 River Road, Unir A Grand Junction. Colorado 81502 Phone (970) 243--53 I I Fax (970) 24-t-60 l0 TiNOCAL Dick Branuner 546 Main Sr. #404 Grand Junction, CO 8l 501 UOC Phone: 241-7632, Fax: 241-0065 HLA Phone: 242-5784 Parameter . :l -. r::: ::.=j j , -:::j :::j-.::--: : i,Units MDL Dare MCL li: :r EPA Method Results RSD Latr Sample ID: Client Sanrple ID: Client Proiecr ID: Date Sarrrpled: f)ate Received: Date Reported: Sanrple Matrix : Presen,ation: QAQC Number: Pre- 0l-0151 uol-2 IINOCAL TEI\{P 3 3/13/01 3/13/01 @ l7:00 3/16/01 SOLIDS coc2208 TCLP EXTRACTION 3lt6t0r 3/t6/01 6020 6020 I\Ietals TCLP Arsenic TCLP Selenium 0.32 nd 1.5 nd m-e/L mglL 0.06 0.06 Notcs: RSD - Relarive Standard De*iation, MDL - Merhod Detecrion Limit, MCL -Maxrmum Concentration Limit., nd - nol detected. 1/ t6/0t l'agc I I A rralyst/llcvicwcr I i : .:::.:_: ..j1. -_i :-: ..-j:::. r. .-_ STA|E OF COLORADO Bill Owens, Covernor Jane E. Norton, Executive Director Dedicated to protecting and improving the health and environment of the people of Colorado 4300 Cherry Creek Dr. S. Laboratory and Radiation Services Division Denver, Colorado 80246-1 530 8100 Lowry Blvd. Phone (303) 692-2000 Denver, Colorado 80230-5928 TDD Line $03) 691-77oo (303) 692-3090 Located in Clendale, Colorado http ://www. c d p h e. state. c o. u s Colorado Department of PublicHealth andEnvironment January 24,2002 Mr. Richard L. Brammer, Area Manager Unocal Corporation 546 Main Street, #404 Grand Junction, Colorado 81501 RE: Closure Verification and Certification and Closure Approval of Temporary Basin 3 at the Unocal Parachute Creek Upgrade Facility and Compliance Order #95-12-21-01 Close-out Dear Mr. Brammer, On December 17,2001, Kathryn Stewart and Joyce Williams, as hazardous waste inspectors for the Colorado Department of Public Health and Environment, Hazardous Materials and Waste Management Division (the Division), performed a closure verification inspection of Temporary Basin 3. At that time, all closure activities for Temporary Basin 3 had been completed with the exception of revegetation. Subsequent to the inspection, we have reviewed the Final Clean Closure Report for Temporary Basin 3 dated December 14, 1998. We have also received and reviewed the independent closure certification from Harding ESE, as well as the closure certification from Unocal for this same basin. After our inspection and review, which verified that Temporary Basin 3 had been backfilled, and graded, and review of the aforementioned information submitted by Unocal, we hereby approve the clean closure of Temporary Basin 3. In a separate letter from Unocal dated December 12,2007, Unocal requested termination of Compliance Order #95-12-21-01 and termination of ground water monitoring in the Holding Pond vicinity. In this letter, Unocal stated that all work required by the Compliance Order has been successfully completed. After reviewing the submitted information and information in our files, we concur with Unocal's request and hereby close-out and terminate Compliance Order #95-12-21-01. In addition, we concw with Unocal that ground water monitoring is no longer required around the soil repository in the vicinity of the Holding Pond and can be terminated. 2r/l, This brings to successful conclusion all hazardous waste activities and clean-up at the Unocal Parachute Creek facilities. It has been a long effort. We very much appreciate your efforts and the efforts of your staff over the years to accomplish these tasks. We also appreciate the workjng relationship we have shared with you, your staff, and your contractors. If you have any questions please feel free to call me at 303-692-3356. Sincerely, Joe Schieffelin, Unit Leader Hazardous Waste Compliance Unit cc Walter Avramenko, CDPHE Garfield County Department of Development Lrnocal parachute FaciIit"v/LrSO e{H'ifi#i".x,r*:,ttr;:,;rr#j,rili'ii,' PER/2.6. 1.1 ./6s ,,_,,,11!Jl I ll [ [ tt'ilttt"it tt tt SWMU# 0 <l-"c4\= B January 2023 Phase I ESA Phase I Environmental Site Assessment Wheeler Gulch Solar LLC Garfield County, Colorado Prepared for Caerus Operating LLC January 27, 2023 Wheeler Gulch Solar Project | Phase I Environmental Site Assessment TABLE OF CONTENTS i Table of Contents Executive Summary ....................................................................................................................................... 1 1.0 Introduction ..................................................................................................................................... 5 1.1 Purpose ......................................................................................................................... 5 1.2 Report Users ................................................................................................................. 6 1.3 Scope of Services, Significant Assumptions, and Limitations ....................................... 6 2.0 Site Description ................................................................................................................................ 8 2.1 Location and Legal Description .................................................................................... 8 2.2 Site and Vicinity Characteristics ................................................................................... 8 2.3 Description of Structures, Roads, and Other Site Improvements ................................ 8 2.4 Area Geology and Hydrogeology .................................................................................. 9 3.0 User-Provided Information ............................................................................................................ 12 4.0 Records Review .............................................................................................................................. 13 4.1 Environmental Records Review .................................................................................. 13 4.2 Additional Regulatory Information ............................................................................ 15 5.0 Historical Use Information ............................................................................................................. 16 5.1 Fire Insurance Maps ................................................................................................... 16 5.2 City Directory .............................................................................................................. 16 5.3 Historical Aerial Photographs ..................................................................................... 16 5.4 Historical Topographic Maps ...................................................................................... 17 5.5 Environmental Liens, AULs, and Additional Information ........................................... 17 5.6 Summary of Previous Environmental Investigations ................................................. 18 6.0 Interviews ...................................................................................................................................... 19 6.1 Landowner Interview ................................................................................................. 19 7.0 Site Reconnaissance ....................................................................................................................... 20 7.1 Utilities and PCBs ........................................................................................................ 20 8.0 Data Gap Analysis .......................................................................................................................... 21 9.0 Findings, Opinions, and Conclusions .............................................................................................. 22 9.1 Findings ...................................................................................................................... 22 9.2 Opinions ..................................................................................................................... 24 9.3 Conclusions ................................................................................................................. 24 10.0 Recommendations ......................................................................................................................... 25 Wheeler Gulch Solar Project | Phase I Environmental Site Assessment TABLE OF CONTENTS ii 11.0 Qualifications of Environmental Professionals .............................................................................. 26 11.1 Signatures and Qualifications ..................................................................................... 26 12.0 References ..................................................................................................................................... 27 Tables: Table 1. Property Identification Numbers .................................................................................................... 8 Table 2. Summary of Environmental Database Search Results .................................................................. 13 Table 3. Historical Aerial Summary ............................................................................................................. 16 Figures: Figure 1. Project Location ........................................................................................................................... 10 Figure 2. Project Detail ................................................................................................................................ 11 Figure 3 Government Database Map .......................................................................................................... 14 Appendices Appendix A – Governmental Database Search Results Appendix B – Historical Sources Appendix C – AUL and Environmental Lien Search Appendix D – Site Photographs Wheeler Gulch Solar Project | Phase I Environmental Site Assessment ACRONYMS iii List of Acronyms AAI All Appropriate Inquiry AST aboveground storage tank AUL activity and use limitation AST aboveground storage tank ASTM ASTM International AUL Activity Use Limitations BBL Barrel (bbl) is defined a non-SI Metric System Unit typically used to measure the volume of liquid hydrocarbons BGS below ground surface CDPHE Colorado Department of Public Health and Environment CERCLA Comprehensive Environmental Response, Compensation, and Liability Act COGCC Colorado Oil and Gas Conservation Commission CORRACTS Lists of Federal RCRA facilities undergoing Corrective Action. CREC controlled recognized environmental condition EPA Environmental Protection Agency ESA Environmental Site Assessment HREC historical recognized environmental condition LTANKS Active and Closed OPS Petroleum Release Events in Colorado. LUST Leaking Underground Storage Tank NFA No Further Action NPL National Priorities List NPMS National Pipeline Mapping System RCRA Resource Conservation Recovery Act REC recognized environmental condition USGS United States Geological Survey U.S.C. United States Code UST underground storage tank VOC volatile organic compound Note: A more complete acronym list is in the Governmental Database Report, Appendix A. Wheeler Gulch Solar Project | Phase I Environmental Site Assessment EXECUTIVE SUMMARY 1 Executive Summary HDR Engineering, Inc. (HDR) has completed a Phase I Environmental Site Assessment (Phase I ESA) of an 88-acre parcel located in Garfield County, Colorado. The parcel is the proposed site for a 10 megawatt (MW) solar energy system referred to as the Wheeler Gulch Solar Project. Caerus Oil and Gas LLC (“User”), current owner of the property for the proposed Wheeler Gulch Solar Project, has requested a Phase I ESA for permitting support to develop the Wheeler Gulch Solar Project. The property, referenced herein as the “Subject Property,” is an irregularly shaped lot (Parcel Identification Number [PIN] 217133100020). The Subject Property is bound by American Soda LLP, a soda ash manufacturing facility to the southeast and the Parachute Creek Natural Gas Plant to the northwest. Parachute Creek runs through the southern portion of the Subject Property, and County Road 215 runs through the northeast portion. The surrounding property land use consists of industrial facilities, open rangeland, and oil and gas infrastructure. Figures 1 and 2 provide further detail regarding the boundaries of the Subject Property. The purpose of this Phase I ESA is to identify Recognized Environmental Conditions (RECs) that may adversely affect the Subject Property. This Phase I ESA was conducted in accordance with the scope and limitations of ASTM International (ASTM) Standard Practice E1527-21. This report includes a summary of the site reconnaissance conducted on October 18, 2022, landowner interview, a review of environmental databases, and a review of historical data sources. Any exceptions to or deletions from these ASTM practices are described later in this report. Findings General findings of this assessment include the following: • The Subject Property is situated on the western flank of the Colorado Rocky Mountains within a river eroded basin. The local geology consists of Fluvial Deposits overlain by unconsolidated alluvial materials. The surficial geology of the Subject Property consists of deposits from the Wasatch Formation as well as the presence of deposits from intermountain lakes and related deposits of marlstone. Bedrock thickness at the Subject Property is approximately 1500 feet and soil at the site (Halaquepts) is classified as a clay loam with a very slow infiltration rate and is considered poorly drained. • Groundwater elevation data is not available for the Subject Property. However, nearby subsurface investigations indicated that the depth to water is shallow (approximately 40 feet below ground surface) and the groundwater flow direction is estimated to be southeastern toward Parachute Creek. The computerized environmental database search conducted by EDR identified 13 monitoring wells at depths ranging from 35 to 55 feet within the Subject Property. Three out of the ten wells were abandoned. Fifty well records were identified within 1-mile. • The environmental database search conducted by EDR revealed no listings for the Subject Property and three listings within the ASTM-designated search buffer (up to 1-mile). One orphan site was also found in the search. The following listings of potential concern were identified within the search buffer: o UNOCAL CORP (2717 GARFIELD CR 215, MAP ID 1). This property is located 0.46 miles downgradient of the Subject Property.  LTANKS/LUST– Records were found for a release on 5/10/1994. Limited details on the tank contents or capacity were provided. A No Further Action (NFA) letter was issued on 8/18/1994.  UST – One 4,018-gallon diesel underground storage tank (UST) and one 4,018- gallon gasoline UST were reported as permanently closed on 12/31/1993. o UNOCAL SHALE OIL FACILITY (2717 CNTY RD 215, MAP ID 2). This property is located 0.5 miles upgradient of the Subject Property. Wheeler Gulch Solar Project | Phase I Environmental Site Assessment EXECUTIVE SUMMARY 2  CORRACTS – This property was ranked as a medium corrective action (CA) priority facility in 1993. An investigation began in 1995 to due to groundwater contamination at active/inactive holding ponds, presence of oil in sewer water upstream of the API Separator and a need to upgrade the drum storage area. The investigation workplan was approved in 1997, remediation construction began in 2000 were complete as of 4/17/2000. This property was deferred to Resource Conservation and Recovery (RCRA) Subtitle C for storage of benzene and was not listed on the National Priorities List (NPL). • A review of historical aerials, topographic maps, and other information concluded that the Subject Property had historically been vacant up the late 1970s, early 1980s when two holding ponds and associated infrastructure, referred to as the Holding Pond and East Holding Pond, were used to support adjacent industrial facilities. o The Holding Pond was constructed in 1983 and closed in 1993. Arsenic contaminated soils exceeding natural background standards were identified. These soils were excavated and placed in an on-site repository north of the main holding pond. HDR was unable to locate the Closure Plan and associated regulatory approval documents. o The East Holding Pond was present in the 1993 historic aerial and was undergoing closure in the 1999 historic aerial. HDR was unable to locate documentation to identify the type of liquids managed in the East Holding Pond or any regulatory documentation supporting its closure. • A review of historical aerials and topographic maps identified gas and oil infrastructure have been present within the Subject Property, in the northwest and southeast corners, beginning in 2006. • An AUL, in the form of a Deed Restriction and Notification executed in November 1998, was identified on the site for the parcel where the soil repository containing arsenic contaminated soils is located. The Deed Restriction and Notification limits uses of the repository parcel and requires Colorado Department of Public Health and the Environment (CDPHE) notification before any modification or disturbance to the repository commences. • No lease documents or other contractual agreements were identified between the current Landowner and the Leasee(s) for the two oil/gas well pads. A Landowner Questionnaire was completed on December 5, 2022, by Mr. Jason Eckman, the Regulatory and Community Relations Lead for the current landowner, Caerus Oil and Gas LLC. Mr. Eckman stated that the property has been owned by Caerus Oil and Gas LLC for five years. Mr. Eckman sated the prior owners of the Subject Property used it to support oil shale development. He was aware of two producing oil/gas wells owned by Terra Energy Partners in the northwest and southeast portion of the Subject Property and a soil repository parcel containing excavated soil contaminated with arsenic from a holding pond in the northwest portion of the Subject Property. Mr. Eckman stated that the soil repository and two producing oil/gas well pads are excluded from the Wheeler Gulch Solar Project. • HDR conducted the site reconnaissance on October 18, 2022. The Subject Property is a primarily vacant, undeveloped parcel with mostly short herbaceous plants and some trees surrounding the location of a former holding pond and near the banks of Parachute Creek. A barbed wire fence was present around the majority of the Subject Property. Agricultural fields were present in the northeast portion of the Subject Property, northeast of Highway 215. Trash was present in the southwestern edge of the Subject Property including an old automobile, debris from a wooden structure, and scrap metal. A well-maintained access road was present in the south-central area of the Subject Property which led to an unfenced equipment storage yard containing a small shed and conex box, as well as generators, trailers, and other construction equipment. Other small areas of the property appeared to be leased to oil and gas businesses including some buildings on the southeast corner of the property and an access road on the eastern side of the property. • High voltage power lines transect the eastern portion of the Subject Property from north to south, crossing over the access road to the equipment yard. Abandoned power infrastructure is Wheeler Gulch Solar Project | Phase I Environmental Site Assessment EXECUTIVE SUMMARY 3 scattered through the western portion of the parcel with some active infrastructure at the very western edge. Opinions HDR has reviewed the stated data sources, which are part of the ASTM E1527-21 assessment protocol. Based upon the review of the data, HDR has developed the following professional opinions: • An equipment storage yard is present in the southern portion of the Subject Property. The equipment storage yard contains a small shed and conex box, as well as generators, trailers, and other construction equipment. Petroleum products for the generators may exist on site, but not likely in significant quantities. This site is not considered to be a REC. • A Holding Pond and settling ponds/aeration basins were located on the northeast Subject Property from 1981 to 1993. The holding pond was taken out of service in November 1993 and soils in the bottom of the holding pond were tested and shown to exceed the natural background arsenic levels. Soils exceeding a CDPHE established performance standard were excavated and placed in a soil repository parcel created out of the former aeration/settling basins immediately north of the holding pond. HDR was unable to locate the Closure Plan and associated regulatory approval documents. The soil repository is subject to a AUL that references the closure documents with CDPHE in the form of a November 1998 Deed Restriction and Notification. Based on this analysis, the soil repository parcel is considered a CREC and the footprint of the former holding pond is considered a REC. • The larger East Holding Pond was present in the 1993 historic aerial and remained on site in 1999, undergoing closure, after the adjacent Holding Pond facility had been closed. HDR was unable to locate documentation to identify the type of liquids managed in the East Holding Pond or any regulatory documentation supporting its closure. The East Holding Pond is considered a REC. • Oil and gas production in the northwest and southeast corners of the Subject Property has been present since at least the early 2000s. The lease agreements for the two oil/gas well pads were not available. No information was found regarding historical releases; however, a lack of an agreement between the two parties opens up the User to liability should a release occur. The oil/gas well pads are considered a business environmental risk due to a lack of documented agreement between the User and the leasing party. Conclusions Based upon the above-detailed Findings and Opinions, HDR concludes that RECs have not been identified in association with the Wheeler Gulch Solar Project, as summarized in the Opinions section above. The following statement is required by ASTM E1527-21 as a declaration that RECs were found: HDR has performed a Phase I ESA in conformance with the scope and limitations of ASTM E1527-21 of the proposed Wheeler Gulch Solar Project located at 3477 County Road 215 Parachute, CO 81652. Any exceptions to or deletions from these practices are described in following sections of this report. This report has revealed no indications of RECs in connection with the Subject Property. Recommendations Recommendations included in this report were developed through the investigative procedures described in the Scope of Services, Significant Assumptions, and Limitations sections of this report (See Section 2.3). These findings should be reviewed within the context of the limitations provided in the Limitations section. Based upon the identification of RECs in the Subject Property, HDR makes the following recommendations: Wheeler Gulch Solar Project | Phase I Environmental Site Assessment EXECUTIVE SUMMARY 4 Recommendation 1 HDR recommends a Phase II evaluation for soils in the footprint of the former Holding Pond and East Holding Pond focused on areas where disturbance is anticipated. The evaluation will potentially hazardous waste impacts and inform soil management needs during construction. Recommendation 2 HDR recommends that the Wheeler Gulch Solar Project avoid construction in the location of the arsenic soil repository and the operating oil and gas pads identified in Figure 2. If construction is anticipated in the location of the arsenic soil repository, per the Deed Restriction and Notification, the User must notify CDPHE before construction commences. Recommendation 3 HDR recommends that the User complete and maintain lease agreements (or other appropriate legal mechanism) with the operator(s) of the oil and gas pads to determine environmental liability should a release occur due to Leasee operations. Recommendation 4 HDR recommends that the User consider the “shelf life” of Phase I documents in determining risk. ASTM E 1527-21 states that a conforming “Phase I” report is valid for a period of 180 days and may be updated during the 180 days to 1-year timeframe. The report is valid for use in any of the CERCLA defenses ONLY if it is updated within this time frame. If greater than one year passes from the final report date, the Phase I effort would need to be repeated to remain in compliance with ASTM and the “All Appropriate Inquiry” protections. Report Viability Dates Phase I ESA Component Date Collected Database Search October 13, 2022 Interview(s) December 5, 2022 Site Reconnaissance October 18, 2022 Environmental Professional Declaration Report Date AUL and Environmental Lien Search December 5, 2022 Report Expiration *calculated from earliest collection date April 11, 2023 Wheeler Gulch Solar Project | Phase I Environmental Site Assessment INTRODUCTION 5 1.0 Introduction 1.1 Purpose The purpose of this Phase I ESA is to document the evaluation of the Subject Property for indications of “recognized environmental conditions,” as defined by ASTM International Practice E1527-21. This ASTM standard defines the following categories of REC: REC: (1) The presence of hazardous substances or petroleum products in, on, or at the Subject Property due to a release to the environment; (2) the likely presence of hazardous substances or petroleum products in, on, or at the Subject Property due to a release or likely release to the environment; or (3) the presence of hazardous substances or petroleum products in, on, or at the Subject Property under conditions that pose a material threat of a future release to the environment. ASTM E1527-21 defines release as a release of any hazardous substance or petroleum product shall have the same meaning as the definition of “release” in CERCLA 42 U.S.C. § 9601(22). There are a number of statutory exclusions from the definition of release that may impact the environmental professional’s opinions and conclusions, such as the normal application of fertilizer. Controlled REC (CREC): A recognized environmental condition affecting the Subject Property that has been addressed to the satisfaction of the applicable regulatory authority or authorities with hazardous substances or petroleum products allowed to remain in place subject to implementation of required controls (for example, activity and use limitations or other property use limitations). Additional conditions that are not included under the definitions of a REC, but are defined by ASTM Practice E1527-21 include: Historical REC (HREC): A previous release of hazardous substances or petroleum products affecting the Subject Property that has been addressed to the satisfaction of the applicable regulatory authority or authorities and meeting unrestricted use criteria established by the applicable regulatory authority or authorities without subjecting the Subject Property to any controls (for example, activity and use limitations or other property use limitations). A historical recognized environmental condition is not a recognized environmental condition. De minimis: A condition that generally does not present a threat to human health or the environment, and that generally would not be the subject of an enforcement action if brought to the attention of appropriate governmental agencies. Conditions determined to be de minimis conditions are not RECs, historical RECs nor CRECs. Business Environmental Risk: A risk which can have a material, environmental or environmentally-driven impact on the business associated with the current or planned use of a parcel of commercial real estate, not necessarily limited to those environmental issues required to be investigated in this practice. Consideration of business environmental risk issues may involve addressing one or more non-scope considerations. Wheeler Gulch Solar Project | Phase I Environmental Site Assessment INTRODUCTION 6 1.2 Report Users HDR received authorization from Caerus Oil and Gas LLC (User) to conduct a Phase I ESA of the Subject Property. The Subject Property is the proposed site for the Wheeler Gulch Solar Project (specific project limits are shown in Figures 1 and 2), located in Parachute, Garfield County, Colorado. This Phase I ESA has been prepared for Caerus Oil and Gas LLC, and only Caerus Oil and Gas LLC has the right to rely on the contents of this Phase I ESA without written authorization. 1.3 Scope of Services, Significant Assumptions, and Limitations The services provided for this project consisted of the following: • Provide a description of the Subject Property including current land uses (Section 2.2 and 2.3) • Provide a general description of the topography, soils, geology, and groundwater flow direction (Section 2.4) • Review reasonably ascertainable and reviewable regulatory information published by federal, state, local, tribal, health, and/or environmental agencies pertaining to the Subject Property (Section 4.0) • Review historical data sources for the Subject Property, including aerial photographs, topographic maps, fire insurance maps, city directories, and other readily available development data (Section 5.0) • Interview current owner of the Subject Property and interview other persons with knowledge of the development history of the Subject Property (Section 6.0) • Conduct an area reconnaissance and an environmental review—including a visual review of adjoining properties—with a focus on indications of hazardous substances, petroleum products, polychlorinated biphenyls (PCBs), wells, storage tanks, solid waste disposal pits and sumps, and utilities (Section 7.0) • Determine data gaps in the information obtained and comment on their significance in identifying RECs for the Subject Property (Section 8.0) • Prepare a written report of methods, findings, opinions, and conclusions (Section 9.0). The goal of this scope of services is to assist the user in identifying conditions in the Subject Property that may indicate risks regarding hazardous materials storage, disposal, or other impacts. The resulting report may qualify the user for relief from liabilities as one of three “defenses” identified in the 2002 Brownfields Amendments to the CERCLA Section 9607 (All Appropriate Inquiry subsections). These three defenses include: 1. The “innocent landowner” defense to potential liabilities under 42 United States Code [U.S.C.] § 9601 2. The “contiguous project corridor owner” defense pursuant to 42 U.S.C. § 9607q 3. The “bona fide prospective purchaser” defense pursuant to 42 U.S.C. §9607r Federal regulations at (42 U.S.C §9601(35)(A) & (B), §9607(b)(3), §9607(q), and §9607(r)), promulgated by the United States (U.S.) Environmental Protection Agency (EPA), require that liability release be based (in part) on completion of All Appropriate Inquiries (AAI) prior to purchase of a property. Those inquiries are documented by Phase I reports, or ESAs. EPA has agreed that the recently developed ASTM guidance (ASTM Practice E1527-21: 3.2.6) specifies and interprets AAI requirements. A user is defined by ASTM Practice E1527-21 as the party seeking to use Practice E1527 to complete an ESA of the Subject Property and may include a potential purchaser of land in the Subject Property, a potential tenant of the Subject Property, an owner of land in the Subject Property, a lender, or a project manager. Investigative areas not included in the standard ASTM ESA scope include asbestos, lead-based paint, lead in drinking water, radon or urea formaldehyde, wetland issues, regulatory compliance, cultural Wheeler Gulch Solar Project | Phase I Environmental Site Assessment INTRODUCTION 7 and historic resources, industrial hygiene, health and safety, ecological resources, endangered species, and high voltage power lines. Indoor air quality from sources such as mold and asbestos are not included in the ASTM standard, except to the extent that indoor air impacts are caused by releases of hazardous substances into subsurface soil or groundwater (vapor intrusion). The potential for vapor encroachment or intrusion into structures in the Subject Property is considered and identified from onsite or offsite sources based on the experience of the Environmental Professional. The scope of services for ESA projects also does not include the completion of soil borings, the installation of groundwater monitoring wells, or the collection of soil or groundwater samples. State and national policies and standards relevant to vapor intrusion are in flux and subject to change. HDR has made certain assumptions in preparing the scope of this assessment: • Data gathered from public information sources (e.g., libraries or public regulatory agencies) are accurate and reliable. • Site operations reflect site conditions relative to potential releases, and no intentional concealment of environmental conditions or releases has occurred. • Interview information is directly reported as gathered by the assessor and is limited by the accuracy of the interviewee’s recollection and experience. • Published geologic information and site observations made by the environmental professional are used to estimate likely contaminant migration pathways in the subsurface. These estimates by the environmental professional are limited in accuracy and are generally cross-referenced with existing information about similar sites and environmental releases in the area. • Regulatory information is limited to sites identified after the late 1980s, because reliable records were not kept by regulatory agencies prior to that time frame. The findings and conclusions presented in this report are based on the procedures described in ASTM Practice E1527-21, informal discussions with various agencies, a review of the available literature cited in this report, conditions noted at the time of this Phase I ESA, and HDR’s interpretation of the information obtained as part of this Phase I ESA. The findings and conclusions are limited to the specific project and properties described in this report, and by the accuracy and completeness of the information provided by others. An ESA cannot entirely eliminate uncertainty regarding the potential for RECs. Conducting this assessment is intended to reduce, but not eliminate, uncertainty regarding the potential for RECs in connection with a Subject Property within reasonable limits of time and cost. In conducting its services, HDR used a degree of care and skill ordinarily exercised under similar circumstances by reputable members of its profession practicing in the same locality. This Phase I ESA conforms to the level of documentation required in ASTM Practice E1527-21. However, HDR may omit discussion of certain records, i.e., sources deemed, in HDR’s professional opinion, to be inapplicable, or of limited value, to the specific needs of this client. In accordance with ASTM, however, if the lack of available documentation results in a data gap, this data gap is identified herein, and its significance is discussed. Wheeler Gulch Solar Project | Phase I Environmental Site Assessment SITE DESCRIPTION 8 2.0 Site Description 2.1 Location and Legal Description The property, referenced herein as the Subject Property, is the proposed location for the Wheeler Gulch Solar Project. The Subject Property is an irregularly shaped lot, approximately 88 acres in area, located at the addresses listed in Table 1 below, in the town of Parachute, Garfield County, Colorado. Table 1. Property Identification Numbers PIN Address Land Use Lot Size (acres) Listed Owner 217133100020 3477 County Road 215 Parachute, CO 81652 Agricultural/Rural 88 acres Caerus Operating LLC The Subject Property is bound by American Soda LLP, a sodium carbonate and sodium bicarbonate manufacturer to the southeast and Parachute Creek Natural Gas Plant to the northwest. Parachute Creek runs through the southern portion of the Subject Property, and County Road 215 runs through the northeast portion. Please refer to the Project Location and Project Detail Maps (Figures 1 and 2, respectively) for further details regarding project limits and location. 2.2 Site and Vicinity Characteristics The Subject Property lies within the southern half of Garfield County, in the town of Parachute, Colorado. The surrounding property land use consists of industrial facilities, open rangeland, and oil and gas infrastructure. According to the United States Geological Survey (USGS) 7.5-minute topographic map for Parachute, Colorado, the Subject Property lies within a creek bed and pitches south/southwest towards Parachute Creek. The elevation ranges from 5540 (ft) above mean sea level (amsl) in the northeast corner, to 5370 amsl in the southern portion of the Subject Property. Mountain ranges are located to the northeast and southwest of the Subject Property. 2.3 Description of Structures, Roads, and Other Site Improvements Two (2) high-pressure natural gas pipelines parallel the south side of County Road 215 and run through the northeast corner of the Subject Property. A third high-pressure natural gas pipeline was located 300 feet from the western boundary of the Subject Property (NPMS 2022). American Soda LLP, a soda ash manufacturing facility is located adjacent to the east boundary of the Subject Property. The Parachute Creek Natural Gas Plant is located adjacent to the northwest portion of the Subject Property. Thirteen (13) water wells are present within the Subject Property and are described further in section 2.4.2. Two (2) producing oil/gas wells are located in the northwest and southeast corner of the Subject Property. A soil repository cell containing arsenic contaminated soils from a former holding pond is located in the northwest portion of the Subject Property. An access road is present in the south-central area of the Subject Property leading to an unfenced equipment storage yard. Parachute Creek runs through the southern portion of the Subject Property and joins the Colorado River three miles to the southeast. County Road 215 and Garden Gulch Road run through the northeast corner of the Subject Property. Several transmission and distributions lines traverse the eastern portion of the Subject Property. Abandoned Wheeler Gulch Solar Project | Phase I Environmental Site Assessment SITE DESCRIPTION 9 power infrastructure is scattered through the western portion of the Subject Property with some active infrastructure along the western edge. 2.4 Area Geology and Hydrogeology 2.4.1 Geology The Subject Property is situated on the western flank of the Colorado Rocky Mountains. The local geology consists of Fluvial Deposits overlain by unconsolidated alluvial materials. The Subject Property lies within a river eroded basin. The surficial geology of the Subject Property consists of deposits from the Wasatch Formation, which are classified as fluvial deposits of claystone, sandstone, and conglomerate covered by unconsolidated gravels and alluviums. Deposits from intermountain lakes and related deposits of marlstone and shale are also present in the area (Tweto 1979). The underlying bedrock is the Wasatch Formation which the Molina and Atwell Gulch Members. Bedrock thickness at the Subject Property is approximately 1500ft (Donnell 1986). Soil at the site (Halaquepts) is classified as a clay loam with a very slow infiltration rate and is considered poorly drained (NCSS 2022). 2.4.2 Groundwater and Well Information According to the Colorado State Geological Survey, the underlying fluvial deposits and Wasatch formation bedrock are not considered major drinking water aquifers in the area. Higher yields are typically found in the deeply buried Mississippian Leadville Limestone. Groundwater elevation data is not available for the Subject Property. However, nearby subsurface investigations indicated that the depth to water is shallow (approximately 40 feet below ground surface) and the groundwater flow direction is estimated to be southeastern toward Parachute Creek. The well search conducted by EDR identified ten monitoring wells depths ranging from 35 to 55 feet and three abandoned monitoring wells within the Subject Property boundaries. Fifty well records were identified within 1-mile of the Subject Area. Wheeler Gulch Solar Project | Phase I Environmental Site Assessment SITE DESCRIPTION 10 Figure 1. Project Location Wheeler Gulch Solar Project | Phase I Environmental Site Assessment 11 O overview Figure 2. Project Detail Wheeler Gulch Solar Project | Phase I Environmental Site Assessment USER-PROVIDED INFORMATION 12 3.0 User-Provided Information Mr. Jason Eckman, on behalf of the User, Caerus Oil and Gas LLC, responded to requests for information on the Subject Property on December 5, 2022, and December 31, 2022. The User of the report stated: • The User found no identification of any environmental against the Subject Property based on the title commitments. • The User has knowledge of an environmental cleanup that occurred on the Subject Property described below: • One holding pond and aeration/settling basins were located on the Subject Property from 1987 to 1993. The holding pond was taken out of service in November 1993, and soils in the bottom of the pond were tested and shown to exceed the arsenic background levels. Soils exceeding the CDPHE-approved performance standard were excavated and placed in a soil repository parcel created out of the former aeration/settling basins immediately north of the holding pond. The CDPHE granted closure of the soil repository parcel in 1998. The parcel containing the repository will be excluded from the Wheeler Gulch Solar Project. • The User provided HDR with a Deed Restriction and Notification, dated November 1998, for the soil repository discussed above. • The User has specialized knowledge related to the Subject Property summarized below: • Two (2) privately owned producing oil/gas wells are located on the northwest and southeast areas of the Subject Property and will be excluded from the Wheeler Gulch Solar Project. • The User was unable to locate any lease or contractual agreements between the Landowner and the oil/gas pad Leasee(s). • Other than the arsenic-contaminated soils contained in the on-site repository discussed in the previous bullet, the User has no knowledge of the presence of contamination on the Subject Property. • The User has no knowledge of any spills or chemical releases on the Subject Property Wheeler Gulch Solar Project | Phase I Environmental Site Assessment RECORDS REVIEW 13 4.0 Records Review 4.1 Environmental Records Review EDR was contracted by HDR to complete a database search of federal, state, local, and tribal environmental records (as required by ASTM) for the Subject Property. A computerized environmental information database search was performed for the Subject Property by EDR on October 13, 2022. The databases searched included federal, state, local, tribal, and EDR proprietary databases for listings within the Subject Property, and a one-mile search buffer zone. The results of the Governmental database search are summarized in the following paragraphs. A complete copy of the Governmental database report and detailed map is included in Appendix A. Table 2. Summary of Environmental Database Search Results Database Description Subject Property ASTM Search Radius Standard Environmental Records CORRACTS Lists of Federal RCRA facilities undergoing Corrective Action. 0 1 LTANKS Active and Closed OPS Petroleum Release Events in Colorado. 0 1 LUST The Leaking Underground Storage Tank Incident Reports contain an inventory of reported leaking underground storage tank incidents. 0 1 TOTAL 0 3 Orphan Sites 1 The database search revealed no listings for the Subject Property and three listings within the ASTM- designated search buffer (up to 1-mile). One orphan site was also found in the search, but further investigation showed it was located over one-mile from the Subject Property. Figure 3 shows the Subject Property and search buffer used by EDR for the database search. Search Buffer Sites of Concern • UNOCAL CORP (2717 GARFIELD CR 215, MAP ID 1). This property is located 0.46 miles downgradient of the Subject Property. o LTANKS/LUST– Records were found for a release on 5/10/1994. Limited details on the tank contents or capacity were provided. A NFA letter was issued on 8/18/1994. o UST – One 4,018-gallon diesel UST and one 4,018-gallon gasoline UST were reported as permanently closed on 12/31/1993. • UNOCAL SHALE OIL FACILITY (2717 CNTY RD 215, MAP ID 2). This property is located 0.5 miles upgradient of the Subject Property. o CORRACTS – This property was ranked as a medium CA priority facility in 1993. An investigation began in 1995 to due to groundwater contamination at active/inactive basins, presence of oil in sewer water upstream of the API Separator and a need to upgrade the drum storage area. The investigation workplan was approved in 1997, remediation construction began in 2000 and the corrective action was terminated, and remedial activities were complete as of 4/17/2000. This property was deferred to RCRA Subtitle C for storage of benzene and was not listed on the NPL. Wheeler Gulch Solar Project | Phase I Environmental Site Assessment 14 Figure 3 Government Database Map Wheeler Gulch Solar Project | Phase I Environmental Site Assessment RECORDS REVIEW 15 4.2 Additional Regulatory Information 4.2.1 Online Sources COLORADO DEPARMTENT OF NATURAL RESOURCES Colorado Oil and Gas Conservation Commission (COGCC) A search for well records for the Subject Property and adjacent properties was conducted. No new listings in addition to those in the EDR database report were found. COLORADO PIPELINE AWARENESS National Pipeline Mapping System (NPMS) A search for gas and oil pipelines within the vicinity of the Subject Property and adjacent properties was conducted. The following information was collected: • Two high-pressure natural gas pipelines are located parallel to the south side of County Road 214, which runs through the northwest corner of the Subject Property. A second high-pressure natural gas pipeline was located 300 feet south of the Subject Property. • One hazardous liquid pipeline was located 500 feet west of the Subject Property. A release of 3.60 BBLs of flammable/toxic fluid occurred on 5/14/2020 as a result of equipment failure. 1.60 BBL were recovered. The area where the release occurred was on a concrete pad, adjacent to the east side of four ASTs, and surrounded by a soil berm. No records of the release flowing outside of the bermed area was reported. UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Cleanups In My Community A search for cleanup sites was conducted for the Subject Property and surrounding properties. No new listings in addition to those in the EDR database report were found. 4.2.2 Agency File Reviews No FOIA requests were made for listings identified in Section 4.1, due to: 1) the detailed information already provided in the EDR report, 2) the availability of additional information online (i.e., COGCC, NPMS), or 3) the relevant records being unavailable through this process. Wheeler Gulch Solar Project | Phase I Environmental Site Assessment HISTORICAL USE INFORMATION 16 5.0 Historical Use Information The objective of reviewing historical use information is to develop a history of previous land uses at, and in the vicinity of, the Subject Property, and to assess these uses for potential hazardous materials impacts that may affect the Subject Property. HDR reviewed those historical sources that were reasonably ascertainable and likely to provide useful information, as defined by the ASTM standard. 5.1 Fire Insurance Maps Fire insurance maps are produced by private fire insurance companies to indicate uses of properties within the Subject Property, originally to develop fire ratings for insurance companies. Sanborn fire insurance map coverage for the Subject Property was not available. 5.2 City Directory Historical City Directories were reviewed back to 1995 for the Subject Property address. No business has been listed at the Subject Property address (3477 County Road 215). The earliest record of a business adjacent to the Subject Property occurred in 1992. Additional coverage years included 1995, 2000, 2005, 2010, 2014 and 2017. The following were businesses adjacent to the Subject Property: • 3696 County Road 215 – Unocal Ranch (1992, 1995) • 4289 County Road 215 o 2000: Haystack Ranch/Parachute Creek Ranch o 2014: Williams Companies/ Williams Production P3 Gas Plant o 2017: Terra Energy Partners/ Williams Companies/ Williams Production P3 Gas Plant • 3555 County Road 215 – Williams Production RMT /National Oilwell Varco (2005, 2014, 2017) • 2717 County Road 215 o 1992: Texaco Trucking/Union Oil of California o 2000: Kvaerner Metals o 2005: America Soda Ash/Solvay Chemicals Inc o 2010: En Cana Oil & Gas USA Inc/Solvay Chemicals Inc o 2017: Solvay Chemicals Inc 5.3 Historical Aerial Photographs Historical aerial photographs are valuable for the environmental assessor to review features of the Subject Property and surrounding properties over a long period of time. HDR reviewed historical aerial photographs for the following years: 1945, 1955, 1960, 1979, 1983, 1993, 1999, 2006, 2009, 2017, and 2021. Copies of the historical aerial photographs are included in Appendix B. Table 3. Historical Aerial Summary Year Source Notable Feature or Change 1949 EDR The Subject Property was undeveloped. What appears to be a tree farm was located in the southeast corner. Several gravel roads were present in the western half of the Subject Property. County Road 215 and Garden Gulch Road were present in the northeast corner. A farmstead was present adjacent to the northeast corner of the Subject Property, east of Garden Gulch Road. Surrounding properties consisted of rural residential and agricultural land. Wheeler Gulch Solar Project | Phase I Environmental Site Assessment HISTORICAL USE INFORMATION 17 1955 and 1960 EDR The 1955 aerial image is incorrectly shifted south, but there were no significant changes to the Subject Property or adjacent properties. 1979 EDR The aerial image was not clear enough to observe any notable features or changes within the Subject Property. 1983 EDR The aerial image is incorrectly shifted north. A holding pond facility was present in the northern portion of the Subject Property by 1983 which included a main holding pond and three aeration/settling basins. Four buildings were present southeast of the Subject Property. Industrial development was present to the southeast. 1993 EDR A large holding pond was present east of the existing holding pond facility in 1993. The surrounding properties remained in industrial land use. 1999 EDR By 1999, only the large east holding pond was present within the Subject Property. 2006 EDR By 2006, the large east holding pond had been partially filled in. The rectangularly- shaped soil repository is slightly visible in the west central portion of the Subject Property in the footprint of the former aeration/settling basins. One oil/gas well pad was present in the northwest corner and one well pad was present in the southeast portion of the Subject Property. Industrial and oil and gas infrastructure including holding ponds, ASTs, oil/gas well pads and warehouses were present adjacent to the northwest and southeast boundary of the Subject Property by 2006. 2009 EDR By 2009, the well pad adjacent to the north boundary of the Subject Property had expanded in size. Three ASTs and four generators were clearly visible in the southeast corner of the Subject Property. 2017 EDR No significant changes within the Subject Property. 2021 Google Earth By 2021, what appears to be machinery and storage containers are stored in the southern portion of the Subject Property. 5.4 Historical Topographic Maps Historical topographic maps provide an overview of the area relative to potential previous land uses. HDR reviewed USGS 7.5-minute historical topographic maps of the Subject Property provided by EDR. The USGS 7.5-minute series topographic maps were reviewed for Parachute, Red Pinnacle, and Grand Valley for 1962, and Parachute, Red Pinnacle, Forked Gulch and Circle Dot Gulch for the years 2013, 2016 and 2019. These maps served to augment information that was gathered in the historic aerial photograph review. A review of the topographic maps concluded that the Subject Property had historically been vacant up the late 1970s/early 1980s when holding ponds used to support adjacent industrial facilities, and gas and oil infrastructure were present within the Subject Property. Copies of the historical topographic maps are included in Appendix B. 5.5 Environmental Liens, AULs, and Additional Information The User indicated that no Environmental Liens were found for the Subject Property. An AUL, in the form of a Deed Restriction and Notification, is present on the Subject Property for the parcel where the soil repository containing arsenic contaminated soils is located. The deed restriction was executed in November 1998 by Unocal, the owner of the real property at the time. The deed restriction provided a brief summary of the construction and closure of Unocal’s Construction Camp Holding Pond in Wheeler Gulch Solar Project | Phase I Environmental Site Assessment HISTORICAL USE INFORMATION 18 the northwest corner of the Subject Property. The Holding Pond, constructed in 1981, was originally designed for use as a polishing basin for a sewage treatment system but in 1987, Unocal was given permission by CDPHE to store treated process water in the Holding Pond until 1993 when it was taken out of service. Arsenic was present in the holding pond above background and 12,000 cubic yards of soil were excavated and consolidated in an on-site soil repository located in the footprint of the aeration/settling ponds. Refer to Figure 2 for the location of the soil repository and the former Holding Pond. The deed restriction and notice (Appendix C) limits uses of the repository as follows: “future use of the land contained in the Parcel must not disturb the soil repository controls implemented by Unocal. The controls are the graded and compressed cap and liner. Any future owner of the Parcel must notify CDPHE before any modification or disturbance to the existing control commences” 5.6 Summary of Previous Environmental Investigations The deed restriction and notice discussed in Section 5.5 described an investigation and closure plan for the former holding pond facility. HDR was unable to locate these reports to summarize the investigations. HDR was unaware of any other previous environmental investigations on the Subject Property at the time of this report. Wheeler Gulch Solar Project | Phase I Environmental Site Assessment INTERVIEWS 19 6.0 Interviews 6.1 Landowner Interview A Landowner Questionnaire was completed on December 5, 2022, by Mr. Jason Eckman, the Regulatory and Community Relations Lead for the current landowner, Caerus Operating LLC, who stated that the property has been owned by Caerus Operating LLC for five years. Mr. Eckman sated the prior owners of the Subject Property used it to support oil shale development. He was aware of two producing oil/gas wells owned by Terra Energy Partners in the northwest and southeast portion of the Subject Property and a soil repository containing excavated soil contaminated with arsenic from a holding pond in the northwest portion of the Subject Property. Mr. Eckman stated that the soil repository and two producing oil/gas well pads were excluded from the Wheeler Gulch Solar Project. Wheeler Gulch Solar Project | Phase I Environmental Site Assessment SITE RECONNAISSANCE 20 7.0 Site Reconnaissance HDR conducted the site reconnaissance on October 18, 2022. The site reconnaissance activities included a review of the Subject Property and surrounding area. The Subject Property was primarily vacant, undeveloped parcel with mostly short herbaceous plants and scrubby grasses, areas of tall grasses and shrubs, and some trees surrounding the location of a former drainage basin and near the banks of Parachute Creek. A barbed wire fence was present around the majority of the Subject Property. Agricultural fields were present northeast of Highway 215. Minor amounts of discarded trash were also present throughout the Subject Property. Larger pieces of trash were found in a ditch near the southwestern edge of the Subject Property. These items included: an old automobile, debris from a wooden structure, and scrap metal. A well-maintained access road was present in the south-central area of the Subject Property which led to an unfenced equipment storage yard. The equipment yard contained a small shed and conex box, as well as generators, trailers, and other construction equipment. Two producing gas wells were present in the northwest and southeast portions of the Subject Property. The surrounding properties were industrial oil and gas businesses to the northwest, southeast, and north. These businesses included large oil and gas processing buildings and equipment, and unpaved storage yards with large amounts of vehicles. Parachute Creek traversed the Subject Property in the westernmost section of the Subject Property. The creek was surrounded by dense vegetation and the water was high in silt content. Photographs taken during the site reconnaissance are provided in Appendix D. 7.1 Utilities and PCBs High voltage power lines transect the eastern portion of the Subject Property from north to south, crossing over the access road to the equipment yard. Abandoned power infrastructure is scattered through the western portion of the Subject Property with some active infrastructure along the western edge. Several mounted transformers were present on power poles throughout the Subject Property, and one abandoned transformer was present in the northwest corner of the Subject Property. No obvious signs of leaks were noted in association with any of the transformers. Wheeler Gulch Solar Project | Phase I Environmental Site Assessment DATA GAP ANALYSIS 21 8.0 Data Gap Analysis The ASTM E1527-21 standards require a listing of “data gaps,” including data failure, encountered during the investigative process that may affect the validity of the conclusions drawn by the environmental professional. The ASTM E1527-21: 12.7 standard also requires that the environmental professional estimate the relative importance of the data gaps. Generally, gaps in available data are related to the availability of historical data sources for specific sites of concern. The environmental professional uses multiple historical data sources as a method to provide coverage for data gaps. Historical information is collected on a recurring basis, and the passage of time between data sets may or may not constitute a significant gap in data coverage. For this project, the following significant data gaps, as defined by ASTM E1527-21, were identified: • The former Holding Pond and aeration basin/settling ponds were closed in 1998. The Deed Restriction and Notification indicated that the Pond closure was completed in accordance with a CDPHE-approved Closure Plan. HDR was unable to locate the Closure Plan and associated regulatory approval documents. Without these documents, it cannot be verified that this facility closure was completed in accordance with the plan, met the soil performance standards established for the closure, or was approved by CDPHE. • A second large holding pond was located east of the Holding Pond discussed in the previous bullet. This East Holding Pond (refer to Figure 2) was present in the 1993 historic aerial and remained on site in 1999, undergoing closure, after the adjacent Holding Pond facility had been closed. HDR was unable to locate documentation to identify the type of liquids managed in the East Holding Pond or any regulatory documentation supporting its closure. Without this information, HDR is unable to determine the potential hazardous materials impacts in this area of the Subject Property. Wheeler Gulch Solar Project | Phase I Environmental Site Assessment FINDINGS, OPINIONS, AND CONCLUSIONS 22 9.0 Findings, Opinions, and Conclusions HDR has completed a Phase I ESA of an 88-acre parcel located in Garfield County, Colorado, for a proposed 10 MW solar energy system. Caerus Oil and Gas LLC (“User”) has requested a Phase I ESA for permitting support to develop the Wheeler Gulch Solar Project. The purpose of this Phase I ESA is to identify Recognized Environmental Conditions (RECs) that may adversely affect the Subject Property. This Phase I ESA was conducted in accordance with the scope and limitations of ASTM International (ASTM) Standard Practice E1527-21. This report includes a summary of the site reconnaissance conducted on October 18, 2022, landowner interview, a review of environmental databases, and a review of historical data sources. Any exceptions to or deletions from these ASTM practices are described later in this report. 9.1 Findings General findings of this assessment include the following: • The Subject Property is situated on the western flank of the Colorado Rocky Mountains within a river eroded basin. The local geology consists of Fluvial Deposits overlain by unconsolidated alluvial materials. The surficial geology of the Subject Property consists of deposits from the Wasatch Formation as well as the presence of deposits from intermountain lakes and related deposits of marlstone. Bedrock thickness at the Subject Property is approximately 1500 feet and soil at the site (Halaquepts) is classified as a clay loam with a very slow infiltration rate and is considered poorly drained. • Groundwater elevation data is not available for the Subject Property. However, nearby subsurface investigations indicated that the depth to water is shallow (approximately 40 feet below ground surface) and the groundwater flow direction is estimated to be southeastern toward Parachute Creek. The computerized environmental database search conducted by EDR identified 13 monitoring wells at depths ranging from 35 to 55 feet within the Subject Property. Three out of the ten wells were abandoned. Fifty well records were identified within 1-mile. • The environmental database search conducted by EDR revealed no listings for the Subject Property and three listings within the ASTM-designated search buffer (up to 1-mile). One orphan site was also found in the search. The following listings of potential concern were identified within the search buffer: o UNOCAL CORP (2717 GARFIELD CR 215, MAP ID 1). This property is located 0.46 miles downgradient of the Subject Property.  LTANKS/LUST– Records were found for a release on 5/10/1994. Limited details on the tank contents or capacity were provided. A No Further Action (NFA) letter was issued on 8/18/1994.  UST – One 4,018-gallon diesel underground storage tank (UST) and one 4,018- gallon gasoline UST were reported as permanently closed on 12/31/1993. o UNOCAL SHALE OIL FACILITY (2717 CNTY RD 215, MAP ID 2). This property is located 0.5 miles upgradient of the Subject Property.  CORRACTS – This property was ranked as a medium corrective action (CA) priority facility in 1993. An investigation began in 1995 to due to groundwater contamination at active/inactive holding ponds, presence of oil in sewer water upstream of the API Separator and a need to upgrade the drum storage area. The investigation workplan was approved in 1997, remediation construction began in 2000 were complete as of 4/17/2000. This property was deferred to Resource Conservation and Recovery (RCRA) Subtitle C for storage of benzene and was not listed on the National Priorities List (NPL). • A review of historical aerials, topographic maps, and other information concluded that the Subject Wheeler Gulch Solar Project | Phase I Environmental Site Assessment FINDINGS, OPINIONS, AND CONCLUSIONS 23 Property had historically been vacant up the late 1970s, early 1980s when two holding ponds and associated infrastructure, referred to as the Holding Pond and East Holding Pond, were used to support adjacent industrial facilities. o The Holding Pond was constructed in 1983 and closed in 1993. Arsenic contaminated soils exceeding natural background standards were identified. These soils were excavated and placed in an on-site repository north of the main holding pond. HDR was unable to locate the Closure Plan and associated regulatory approval documents. o The East Holding Pond was present in the 1993 historic aerial and was undergoing closure in the 1999 historic aerial. HDR was unable to locate documentation to identify the type of liquids managed in the East Holding Pond or any regulatory documentation supporting its closure. • A review of historical aerials and topographic maps identified gas and oil infrastructure have been present within the Subject Property, in the northwest and southeast corners, beginning in 2006. • An AUL, in the form of a Deed Restriction and Notification executed in November 1998, was identified on the site for the parcel where the soil repository containing arsenic contaminated soils is located. The Deed Restriction and Notification limits uses of the repository parcel and requires Colorado Department of Public Health and the Environment (CDPHE) notification before any modification or disturbance to the repository commences. • No lease documents or other contractual agreements were identified between the current Landowner and the Leasee(s) for the two oil/gas well pads. A Landowner Questionnaire was completed on December 5, 2022, by Mr. Jason Eckman, the Regulatory and Community Relations Lead for the current landowner, Caerus Oil and Gas LLC. Mr. Eckman stated that the property has been owned by Caerus Oil and Gas LLC for five years. Mr. Eckman sated the prior owners of the Subject Property used it to support oil shale development. He was aware of two producing oil/gas wells owned by Terra Energy Partners in the northwest and southeast portion of the Subject Property and a soil repository parcel containing excavated soil contaminated with arsenic from a holding pond in the northwest portion of the Subject Property. Mr. Eckman stated that the soil repository and two producing oil/gas well pads are excluded from the Wheeler Gulch Solar Project. • HDR conducted the site reconnaissance on October 18, 2022. The Subject Property is a primarily vacant, undeveloped parcel with mostly short herbaceous plants and some trees surrounding the location of a former holding pond and near the banks of Parachute Creek. A barbed wire fence was present around the majority of the Subject Property. Agricultural fields were present in the northeast portion of the Subject Property, northeast of Highway 215. Trash was present in the southwestern edge of the Subject Property including an old automobile, debris from a wooden structure, and scrap metal. A well-maintained access road was present in the south-central area of the Subject Property which led to an unfenced equipment storage yard containing a small shed and conex box, as well as generators, trailers, and other construction equipment. Other small areas of the property appeared to be leased to oil and gas businesses including some buildings on the southeast corner of the property and an access road on the eastern side of the property. • High voltage power lines transect the eastern portion of the Subject Property from north to south, crossing over the access road to the equipment yard. Abandoned power infrastructure is scattered through the western portion of the parcel with some active infrastructure at the very western edge. Wheeler Gulch Solar Project | Phase I Environmental Site Assessment FINDINGS, OPINIONS, AND CONCLUSIONS 24 9.2 Opinions HDR has reviewed the stated data sources, which are part of the ASTM E1527-21 assessment protocol. Based upon the review of the data, HDR has developed the following professional opinions: • An equipment storage yard is present in the southern portion of the Subject Property. The equipment storage yard contains a small shed and conex box, as well as generators, trailers, and other construction equipment. Petroleum products for the generators may exist on site, but not likely in significant quantities. This site is not considered to be a REC. • A Holding Pond and settling ponds/aeration basins were located on the northeast Subject Property from 1981 to 1993. The holding pond was taken out of service in November 1993 and soils in the bottom of the holding pond were tested and shown to exceed the natural background arsenic levels. Soils exceeding a CDPHE established performance standard were excavated and placed in a soil repository parcel created out of the former aeration/settling basins immediately north of the holding pond. HDR was unable to locate the Closure Plan and associated regulatory approval documents. The soil repository is subject to a AUL that references the closure documents with CDPHE in the form of a November 1998 Deed Restriction and Notification. Based on this analysis, the soil repository parcel is considered a CREC and the footprint of the former holding pond is considered a REC. • The larger East Holding Pond was present in the 1993 historic aerial and remained on site in 1999, undergoing closure, after the adjacent Holding Pond facility had been closed. HDR was unable to locate documentation to identify the type of liquids managed in the East Holding Pond or any regulatory documentation supporting its closure. The East Holding Pond is considered a REC. • Oil and gas production in the northwest and southeast corners of the Subject Property has been present since at least the early 2000s. The lease agreements for the two oil/gas well pads were not available. No information was found regarding historical releases; however, a lack of an agreement between the two parties opens up the User to liability should a release occur. The oil/gas well pads are considered a business environmental risk due to a lack of documented agreement between the User and the leasing party. 9.3 Conclusions Based upon the above-detailed Findings and Opinions, HDR concludes that RECs have not been identified in association with the Wheeler Gulch Solar Project, as summarized in the Opinions section above. The following statement is required by ASTM E1527-21 as a declaration that RECs were found: HDR has performed a Phase I ESA in conformance with the scope and limitations of ASTM E1527-21 of the proposed Wheeler Gulch Solar Project located at 3477 County Road 215 Parachute, CO 81652. Any exceptions to or deletions from these practices are described in following sections of this report. This report has revealed no indications of RECs in connection with the Subject Property. Wheeler Gulch Solar Project | Phase I Environmental Site Assessment RECOMMENDATIONS 25 10.0 Recommendations Recommendations included in this report were developed through the investigative procedures described in the Scope of Services, Significant Assumptions, and Limitations sections of this report (See Section 2.3). These findings should be reviewed within the context of the limitations provided in the Limitations section. Based upon the identification of RECs in the Subject Property, HDR makes the following recommendation: Recommendation 1 HDR recommends a Phase II evaluation for soils in the footprint of the former Holding Pond and East Holding Pond focused on areas where disturbance is anticipated. The evaluation will potentially hazardous waste impacts and inform soil management needs during construction. Recommendation 2 HDR recommends that the Wheeler Gulch Solar Project avoid construction in the location of the arsenic soil repository and the operating oil and gas pads identified in Figure 2. If construction is anticipated in the location of the arsenic soil repository, per the Deed Restriction and Notification, the User must notify CDPHE before construction commences. Recommendation 3 HDR recommends that the User complete and maintain lease agreements (or other appropriate legal mechanism) with the operator(s) of the oil and gas pads to determine environmental liability should a release occur due to Leasee operations. Recommendation 4 HDR recommends that the User consider the “shelf life” of Phase I documents in determining risk. ASTM E 1527-21 states that a conforming “Phase I” report is valid for a period of 180 days and may be updated during the 180 days to 1-year timeframe. The report is valid for use in any of the CERCLA defenses ONLY if it is updated within this time frame. If greater than one year passes from the final report date, the Phase I effort would need to be repeated to remain in compliance with ASTM and the “All Appropriate Inquiry” protections. Report Viability Dates Phase I ESA Component Date Collected Database Search October 13, 2022 Interview(s) December 5, 2022 Site Reconnaissance October 18, 2022 Environmental Professional Declaration Report Date AUL and Environmental Lien Search December 5, 2022 Report Expiration *calculated from earliest collection date April 11, 2023 Wheeler Gulch Solar Project | Phase I Environmental Site Assessment QUALIFICATIONS OF ENVIRONMENTAL PROFESSIONALS 26 11.0 Qualifications of Environmental Professionals 11.1 Signatures and Qualifications We declare that, to the best of our professional knowledge and belief, we meet the definition of environmental professional as defined in Section 312.10 of 40 Code of Federal Regulations [C.F.R.] Part 312. We have the specific qualifications based on education, training, and experience to assess a property of the nature, history, and setting of the Subject Property. We have developed and performed the all appropriate inquires in conformance with standards and practices set forth in 40 CFR Part 312. Qualified Environmental Professional Qualified Environmental Professional Nicole Pahl Kate Garufi 11.1.1 Qualifications of Environmental Professionals This Phase I ESA was performed by the following HDR personnel: Mrs. Nicole Pahl is an Environmental Scientist with over 7 years of experience with environmental review documents and field reports. Over the last 5 years with HDR, Nicole has assisted qualified environmental professionals with Phase IESA reports and site reconnaissance for a variety of energy, water resources, and transportation development projects. Ms. Kate Garufi, PMP, has more than 17 years of experience in the assessment and remediation of impacted properties and compliance with environmental regulations. She has a B.S. in Chemical Engineering from Virginia Polytechnic Institute and State University and a Masters in Environmental Engineering from Johns Hopkins University. Ms. Garufi specializes in site investigation and remediation of hazardous waste sites and properties for public and private sector clients across the United States. As a former CERCLA regulator for the Environmental Protection Agency for 15 years, she is highly knowledgeable of federal and state regulations and standards. Wheeler Gulch Solar Project | Phase I Environmental Site Assessment REFERENCES 27 12.0 References ASTM Practice E 1527-21, 2021, Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process. COGCC. 2022. Colorado Oil and Gas Information System (COGIS). Accessed October 27, 2022. https://cogcc.state.co.us/data.html. Donnell, J.R., Yeend, W.E., and Smith, M.C., 1986, Preliminary geologic map of the Grand Valley quadrangle, Garfield County, Colorado, U.S. Geological Survey, Miscellaneous Field Studies Map MF-1883, 1:24,000. EDR. 2022a. The EDR Aerial Photo Decade Package. Wheeler Gulch Solar, 3477 County Road 215 Parachute, CO 81635. Inquiry number 7146432.8. Dated October 17, 2022. EDR. 2022b. The EDR City Directory Image Report. Wheeler Gulch Solar, 3477 County Road 215 Parachute, CO 81635. Inquiry number 7146432.5. Dated October 17, 2022. EDR. 2022c. The EDR Historical Topo Map Report. Wheeler Gulch Solar, 3477 County Road 215 Parachute, CO 81635. Inquiry number 7146432.4. Dated October 13, 2022 EDR. 2022d. The EDR Radius Map Report with GeoCheck. Wheeler Gulch Solar, 3477 County Road 215 Parachute, CO 81635. Inquiry number 7146432.2s. Dated October 13, 2022. NPMS. 2022. Public Viewer. Accessed November 1, 2022. https://co.pipeline- awareness.com/national_pipeline_mapping/. Tweto, O. (1979) Geologic Map of Colorado. United States Geological Survey Map (Scale 1:500,000). A Environmental Database Search Results FORM-LBC-SPM ®kcehCoeG htiw tropeR ™paM suidaR RDE ehT 6 Armstrong Road, 4th floor Shelton, CT 06484 Toll Free: 800.352.0050 www.edrnet.com Wheeler Gulch Solar 3477 County Road 215 Parachute, CO 81635 Inquiry Number: 7146432.2s October 13, 2022 TABLE OF CONTENTS SECTION PAGE Executive Summary ES1 Overview Map 2 Detail Map 3 Map Findings Summary 4 Map Findings 8 Orphan Summary 129 Government Records Searched/Data Currency Tracking GR-1 GEOCHECK ADDENDUM Physical Setting Source Addendum A-1 Physical Setting Source Summary A-2 Physical Setting SSURGO Soil Map A-5 Physical Setting Source Map A-18 Physical Setting Source Map Findings A-20 Physical Setting Source Records Searched PSGR-1 Thank you for your business. Please contact EDR at 1-800-352-0050 with any questions or comments. Disclaimer - Copyright and Trademark Notice This Report contains certain information obtained from a variety of public and other sources reasonably available to Environmental Data Resources, LLC. It cannot be concluded from this Report that coverage information for the target and surrounding properties does not exist from other sources. This Report is provided on an "AS IS", "AS AVAILABLE" basis. NO WARRANTY EXPRESS OR IMPLIED IS MADE WHATSOEVER IN CONNECTION WITH THIS REPORT. ENVIRONMENTAL DATA RESOURCES, LLC AND ITS SUBSIDIARIES, AFFILIATES AND THIRD PARTY SUPPLIERS DISCLAIM ALL WARRANTIES, OF ANY KIND OR NATURE, EXPRESS OR IMPLIED, ARISING OUT OF OR RELATED TO THIS REPORT OR ANY OF THE DATA AND INFORMATION PROVIDED IN THIS REPORT, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES REGARDING ACCURACY, QUALITY, CORRECTNESS, COMPLETENESS, COMPREHENSIVENESS, SUITABILITY, MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, NON-INFRINGEMENT, MISAPPROPRIATION, OR OTHERWISE. ALL RISK IS ASSUMED BY THE USER. IN NO EVENT SHALL ENVIRONMENTAL DATA RESOURCES, LLC OR ITS SUBSIDIARIES, AFFILIATES OR THIRD PARTY SUPPLIERS BE LIABLE TO ANYONE FOR ANY DIRECT, INCIDENTAL, INDIRECT, SPECIAL, CONSEQUENTIAL OR OTHER DAMAGES OF ANY TYPE OR KIND (INCLUDING BUT NOT LIMITED TO LOSS OF PROFITS, LOSS OF USE, OR LOSS OF DATA) INFORMATION PROVIDED IN THIS REPORT. Any analyses, estimates, ratings, environmental risk levels, or risk codes provided in this Report are provided for illustrative purposes only, and are not intended to provide, nor should they be interpreted as providing any facts regarding, or prediction or forecast of, any environmental risk for any property. Only an assessment performed by a qualified environmental professional can provide findings, opinions or conclusions regarding the environmental risk or conditions in, on or at any property. Copyright 2022 by Environmental Data Resources, LLC. All rights reserved. Reproduction in any media or format, in whole or in part, of any report or map of Environmental Data Resources, LLC, or its affiliates, is prohibited without prior written permission. EDR and its logos (including Sanborn and Sanborn Map) are trademarks of Environmental Data Resources, LLC or its affiliates. All other trademarks used herein are the property of their respective owners. TC7146432.2s Page 1 EXECUTIVE SUMMARY TC7146432.2s EXECUTIVE SUMMARY 1 A search of available environmental records was conducted by Environmental Data Resources, Inc (EDR). The report was designed to assist parties seeking to meet the search requirements of EPA’s Standards and Practices for All Appropriate Inquiries (40 CFR Part 312), the ASTM Standard Practice for Environmental Site Assessments (E1527-21), the ASTM Standard Practice for Environmental Site Assessments for Forestland or Rural Property (E 2247-16), the ASTM Standard Practice for Limited Environmental Due Diligence: Transaction Screen Process (E 1528-14) or custom requirements developed for the evaluation of environmental risk associated with a parcel of real estate. TARGET PROPERTY INFORMATION ADDRESS 3477 COUNTY ROAD 215 PARACHUTE, CO 81635 COORDINATES 39.4808000 - 39ˆ 28’ 50.88’’Latitude (North): 108.1032580 - 108ˆ 6’ 11.72’’Longitude (West): Zone 12Universal Tranverse Mercator: 749154.6UTM X (Meters): 4373931.0UTM Y (Meters): 5387 ft. above sea levelElevation: USGS TOPOGRAPHIC MAP ASSOCIATED WITH TARGET PROPERTY 14202419 PARACHUTE, COTarget Property Map: 2019Version Date: 14202333 FORKED GULCH, CONorth Map: 2019Version Date: 14202379 RED PINNACLE, COSouthwest Map: 2019Version Date: 14202313 CIRCLE DOT GULCH, CONorthwest Map: 2019Version Date: AERIAL PHOTOGRAPHY IN THIS REPORT 20150909, 20150828Portions of Photo from: USDASource: 7146432.2s Page 2 2 UNOCAL SHALE OIL FAC 2717 CNTY RD 215 SEMS-ARCHIVE, CORRACTS, RCRA-TSDF, RCRA-VSQG Higher 2889, 0.547, NNW 1 UNOCAL CORP 2717 GARFIELD CR 215 LTANKS, LUST, UST Lower 2477, 0.469, ESE MAPPED SITES SUMMARY Target Property Address: 3477 COUNTY ROAD 215 PARACHUTE, CO 81635 Click on Map ID to see full detail. MAP RELATIVE DIST (ft. & mi.) ID DATABASE ACRONYMS ELEVATION DIRECTIONSITE NAME ADDRESS EXECUTIVE SUMMARY TC7146432.2s EXECUTIVE SUMMARY 3 TARGET PROPERTY SEARCH RESULTS The target property was not listed in any of the databases searched by EDR. DATABASES WITH NO MAPPED SITES No mapped sites were found in EDR’s search of available ("reasonably ascertainable ") government records either on the target property or within the search radius around the target property for the following databases: STANDARD ENVIRONMENTAL RECORDS Lists of Federal NPL (Superfund) sites NPL National Priority List Proposed NPL Proposed National Priority List Sites NPL LIENS Federal Superfund Liens Lists of Federal Delisted NPL sites Delisted NPL National Priority List Deletions Lists of Federal sites subject to CERCLA removals and CERCLA orders FEDERAL FACILITY Federal Facility Site Information listing SEMS Superfund Enterprise Management System Lists of Federal CERCLA sites with NFRAP SEMS-ARCHIVE Superfund Enterprise Management System Archive Lists of Federal RCRA TSD facilities RCRA-TSDF RCRA - Treatment, Storage and Disposal Lists of Federal RCRA generators RCRA-LQG RCRA - Large Quantity Generators RCRA-SQG RCRA - Small Quantity Generators RCRA-VSQG RCRA - Very Small Quantity Generators (Formerly Conditionally Exempt Small Quantity Generators) Federal institutional controls / engineering controls registries LUCIS Land Use Control Information System US ENG CONTROLS Engineering Controls Sites List US INST CONTROLS Institutional Controls Sites List Federal ERNS list ERNS Emergency Response Notification System EXECUTIVE SUMMARY TC7146432.2s EXECUTIVE SUMMARY 4 Lists of state- and tribal hazardous waste facilities SHWS This state does not maintain a SHWS list. See the Federal CERCLIS list and Federal NPL list. Lists of state and tribal landfills and solid waste disposal facilities SWF/LF Solid Waste Sites & Facilities SHWF Solid Waste Information System Listing Lists of state and tribal leaking storage tanks LAST Leaking Aboveground Storage Tank Listing INDIAN LUST Leaking Underground Storage Tanks on Indian Land LUST TRUST RAP Site Listing Lists of state and tribal registered storage tanks FEMA UST Underground Storage Tank Listing UST Underground Storage Tank Database AST Aboveground Tank List INDIAN UST Underground Storage Tanks on Indian Land State and tribal institutional control / engineering control registries AUL Environmental Covenants and Environmental Use Restrictions List Lists of state and tribal voluntary cleanup sites INDIAN VCP Voluntary Cleanup Priority Listing VCP Voluntary Cleanup & Redevelopment Act Application Tracking Report Lists of state and tribal brownfield sites BROWNFIELDS Brownfields Sites Listing ADDITIONAL ENVIRONMENTAL RECORDS Local Brownfield lists US BROWNFIELDS A Listing of Brownfields Sites Local Lists of Landfill / Solid Waste Disposal Sites SWRCY Registered Recyclers Listing HIST LF Historical Landfill List INDIAN ODI Report on the Status of Open Dumps on Indian Lands ODI Open Dump Inventory DEBRIS REGION 9 Torres Martinez Reservation Illegal Dump Site Locations IHS OPEN DUMPS Open Dumps on Indian Land DENVER CO HISTORIC FILL Denver City & County Historic Fill Areas Local Lists of Hazardous waste / Contaminated Sites US HIST CDL Delisted National Clandestine Laboratory Register EXECUTIVE SUMMARY TC7146432.2s EXECUTIVE SUMMARY 5 CDL Meth Lab Locations US CDL National Clandestine Laboratory Register PFAS PFAS Information Listing AQUEOUS FOAM Class B Firefighting Foam Contaminating PFAS Listing Local Land Records LIENS 2 CERCLA Lien Information Records of Emergency Release Reports HMIRS Hazardous Materials Information Reporting System SPILLS Spills Database SPILLS 90 SPILLS 90 data from FirstSearch Other Ascertainable Records RCRA NonGen / NLR RCRA - Non Generators / No Longer Regulated FUDS Formerly Used Defense Sites DOD Department of Defense Sites SCRD DRYCLEANERS State Coalition for Remediation of Drycleaners Listing US FIN ASSUR Financial Assurance Information EPA WATCH LIST EPA WATCH LIST 2020 COR ACTION 2020 Corrective Action Program List TSCA Toxic Substances Control Act TRIS Toxic Chemical Release Inventory System SSTS Section 7 Tracking Systems ROD Records Of Decision RMP Risk Management Plans RAATS RCRA Administrative Action Tracking System PRP Potentially Responsible Parties PADS PCB Activity Database System ICIS Integrated Compliance Information System FTTS FIFRA/ TSCA Tracking System - FIFRA (Federal Insecticide, Fungicide, & Rodenticide Act)/TSCA (Toxic Substances Control Act) MLTS Material Licensing Tracking System COAL ASH DOE Steam-Electric Plant Operation Data COAL ASH EPA Coal Combustion Residues Surface Impoundments List PCB TRANSFORMER PCB Transformer Registration Database RADINFO Radiation Information Database HIST FTTS FIFRA/TSCA Tracking System Administrative Case Listing DOT OPS Incident and Accident Data CONSENT Superfund (CERCLA) Consent Decrees INDIAN RESERV Indian Reservations FUSRAP Formerly Utilized Sites Remedial Action Program UMTRA Uranium Mill Tailings Sites LEAD SMELTERS Lead Smelter Sites US AIRS Aerometric Information Retrieval System Facility Subsystem US MINES Mines Master Index File ABANDONED MINES Abandoned Mines FINDS Facility Index System/Facility Registry System UXO Unexploded Ordnance Sites DOCKET HWC Hazardous Waste Compliance Docket Listing ECHO Enforcement & Compliance History Information FUELS PROGRAM EPA Fuels Program Registered Listing EXECUTIVE SUMMARY TC7146432.2s EXECUTIVE SUMMARY 6 AIRS Permitted Facility & Emissions Listing ASBESTOS Asbestos Abatement & Demolition Projects METHANE SITE Methane Site Investigations - Jefferson County 1980 Methane Investigation Methane Gas & Swamp Findings DRYCLEANERS Drycleaner Facilities Financial Assurance Financial Assurance Information Listing LEAD LEAD MINES Permitted Mines Listing NPDES Permitted Facility Listing UIC Underground Injection Control UMTRA Uranium Mill Tailings Sites MINES MRDS Mineral Resources Data System EDR HIGH RISK HISTORICAL RECORDS EDR Exclusive Records EDR MGP EDR Proprietary Manufactured Gas Plants EDR Hist Auto EDR Exclusive Historical Auto Stations EDR Hist Cleaner EDR Exclusive Historical Cleaners EDR RECOVERED GOVERNMENT ARCHIVES Exclusive Recovered Govt. Archives RGA LF Recovered Government Archive Solid Waste Facilities List RGA LUST Recovered Government Archive Leaking Underground Storage Tank SURROUNDING SITES: SEARCH RESULTS Surrounding sites were identified in the following databases. Elevations have been determined from the USGS Digital Elevation Model and should be evaluated on a relative (not an absolute) basis. Relative elevation information between sites of close proximity should be field verified. Sites with an elevation equal to or higher than the target property have been differentiated below from sites with an elevation lower than the target property. Page numbers and map identification numbers refer to the EDR Radius Map report where detailed data on individual sites can be reviewed. Sites listed in bold italics are in multiple databases. Unmappable (orphan) sites are not considered in the foregoing analysis. STANDARD ENVIRONMENTAL RECORDS Lists of Federal RCRA facilities undergoing Corrective Action CORRACTS: CORRACTS is a list of handlers with RCRA Corrective Action Activity. This report shows which nationally-defined corrective action core events have occurred for every handler that has had corrective action activity. A review of the CORRACTS list, as provided by EDR, and dated 06/20/2022 has revealed that there is 1 EXECUTIVE SUMMARY TC7146432.2s EXECUTIVE SUMMARY 7 CORRACTS site within approximately 1 mile of the target property. PageMap IDDirection / Distance Address Equal/Higher Elevation ____________________ ________ ___________________ _____ _____ UNOCAL SHALE OIL FAC 2717 CNTY RD 215 NNW 1/2 - 1 (0.547 mi.) 2 9 EPA ID:: COD980718902 Lists of state and tribal leaking storage tanks LUST: The Leaking Underground Storage Tank Incident Reports contain an inventory of reported leaking underground storage tank incidents. The data come from the Department of Health’s Leaking Underground Storage Tank List. A review of the LUST list, as provided by EDR, and dated 03/01/2018 has revealed that there is 1 LUST site within approximately 0.5 miles of the target property. PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ ___________________ _____ _____ UNOCAL CORP 2717 GARFIELD CR 215 ESE 1/4 - 1/2 (0.469 mi.) 1 8 Facility Id: 1329 Status: Closed LTANKS: Active and Closed OPS Petroleum Release Events in Colorado. Includes the OPS Open Event locations, but also shows locations of closed events (releases that have been issued a No Further Action determination). A review of the LTANKS list, as provided by EDR, and dated 05/03/2022 has revealed that there is 1 LTANKS site within approximately 0.5 miles of the target property. PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ ___________________ _____ _____ UNOCAL CORP 2717 GARFIELD CR 215 ESE 1/4 - 1/2 (0.469 mi.) 1 8 EXECUTIVE SUMMARY TC7146432.2s EXECUTIVE SUMMARY 8 Due to poor or inadequate address information, the following sites were not mapped. Count: 1 records. Site Name Database(s)____________ ____________ MIDDLE FORK COMPRESSOR STATION SHWF