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Table B-1
<br />Historical Groundwater Monitorine Data
<br />Notes:
<br />MTBE = Methyl tert-butyl ether; DIPE = Di -Isopropyl ether; ETBE = Ethyl tert-butyl ether; TAME = tert-Amyl methyl ether; TBA = cert -Butyl alcohol
<br />EDB = Ethylene dibromide; 1,2 -DCA = 1,2-Dichloroethane; TBA = tert-Butyl alcohol; ETOH = Ethanol; MEOH = Methanol
<br />µg(L = micrograms per liter = parts per billion (ppb)
<br />TOC Elev. = Top of Casing Elevation; DTW = Depth to Water
<br />NA = not Analyzed
<br />'Analysis for EDB, 1,2 -DCA, ETOH, and MEOH discontinued beginning September 30, 2016
<br />'Site well MW -1 elevation was surveyed by Erik Ohlson, PLS #8375, on November 22, 2013 along with off-site well MW -I 1. Off-site wells MW -2, MW -3, MW4, MW -5, and
<br />MW -6 are associated with adjacent Site (Stallworth Auto Sales) and surveyed by Morrow Surveying on March 6, 2006. The wellhead elevations for the off-site wells were
<br />normalized (+0.21 R) to Site well MW -I using the difference between the surveys for off-site well MW -11. Actual survey data available from Geotracker database.
<br />'Chromatogram not typical of diesel
<br />X:\Project\5000_rrj\5960 S1C LIST RFQ\5960B County of San Joaquin - Records Center\5960B4 Records Center\Reports\2018QI\Tables A and B.As
<br />Analytical Constituents-.
<br />Total Petroleum H drocarbons
<br />_ c
<br />c o
<br />t - �
<br />e
<br />('
<br />r
<br />� %'
<br />a
<br />u
<br />aDB,
<br />7
<br />Gasoline Oxygenates/Additives
<br />ETBE, TAME,
<br />1,2 -DCA,
<br />=MTBEEH, MEOW
<br />Reporting
<br />t'nits-.
<br />t �'L.
<br />ie I.
<br />t JL.
<br />t L
<br />tw"L
<br />t */L
<br />t ,/L ttr•1.
<br />te:'l.
<br />te/L
<br />NFell lDGround
<br />TOC Elev.-
<br />[)ate
<br />1)'ll1'
<br />Nater Elev.
<br />SITE WELL.
<br />MW -1
<br />12 03 13
<br />2831
<br />-14.17
<br />200
<br /><200
<br /><1,000
<br />29,000
<br />220
<br />5,600
<br />760 5,900
<br />-40
<br />-20
<br /><20-<2,000
<br />14 14
<br />03/31/14
<br />25.95
<br />-11.81
<br /><50
<br /><50
<br /><250
<br />13,000
<br />27
<br />600
<br />810 2,300
<br />300
<br /><5.0
<br /><5.0 - <500
<br />06/13/14
<br />26.10
<br />-11.96
<br /><50
<br /><50
<br /><250
<br />8,700
<br /><25
<br />480
<br />590 1,700
<br />100
<br />QS
<br /><25 - <2,500
<br />09/10/14
<br />27.01
<br />-12.87
<br /><50
<br /><50
<br /><250
<br />7,300
<br /><25
<br />550
<br />210 550
<br />130
<br /><25
<br /><5.0 - <2,500
<br />12/23/14
<br />27.31
<br />-13.17
<br /><50
<br /><50
<br /><250
<br />6,100
<br />23
<br />200
<br />140 470
<br />31
<br /><0.5
<br /><0.5-<50
<br />06/24/15
<br />28.15
<br />-14.01
<br /><100
<br />570
<br /><500
<br />16,000
<br />360
<br />2,500
<br />320 1,100
<br />130
<br /><10
<br />28 TAME
<br />03/04/16
<br />29.39
<br />-15.25
<br />NA
<br />NA
<br />NA
<br />14 000
<br />440
<br />3,6001
<br />410 1 700
<br /><50
<br /><25
<br /><25 - <2,500
<br />09/30/16
<br />29.68
<br />-15.54
<br />NA14,800'
<br />NA
<br />8,000
<br />300
<br />3,000
<br />360 1 600
<br />64
<br />1 <0.50
<br /><0.50 - <10
<br />10/11/16
<br />29.77
<br />-15.63
<br />Not sampled
<br />03/10/17
<br />25.95
<br />-11.81
<br />NA
<br />9 300NA
<br />13,000
<br />25
<br />250
<br />1 900 1 2,500
<br />310
<br /><1, l
<br /><1.I - <94
<br />09/15/17
<br />23.84
<br />9.70
<br />NA
<br />11,300
<br />NA
<br />10 000
<br />Q.5
<br />25
<br />150 480
<br />130
<br />Q.5
<br /><2.5 - <50
<br />03/19/18
<br />22.85
<br />-8.71
<br />NA
<br />1 630,NA
<br />8,600
<br />0.31
<br />JI 46
<br />1 150 1 610
<br />88
<br /><I.0
<br /><I.0-<20
<br />STALI.NOR111 At 1-0 NII.Ls'
<br />MW -2
<br />03/04/16
<br />NA
<br />NA
<br />Not sampled
<br />13.94
<br />10/11/16
<br />29.05
<br />-15.11
<br />Not sampled
<br />03/10/17
<br />25.19
<br />-11.25
<br />Not sampled
<br />09/15/17
<br />23.20
<br />-9.26
<br />Not sampled
<br />03/19/18
<br />2233
<br />-8.39
<br />Not sampled
<br />MW -3
<br />03/31/14
<br />26.61
<br />-11.76
<br />Not sampled
<br />14.85
<br />06/13/14
<br />26.73
<br />-11.88
<br />Not sampled
<br />09/10/14
<br />27.60
<br />-12.75
<br />Not sampled
<br />12/23/14
<br />27.89
<br />-13.04
<br />Not sampled
<br />06/24/15
<br />28.70
<br />-13.85
<br />Not sampled
<br />03/04/16
<br />29.95
<br />-15.10
<br />Not sampled
<br />10/11/16
<br />30.32
<br />-15.47
<br />Not sampled
<br />03/10/17
<br />26.59
<br />-11.74
<br />Not sampled
<br />09/15/17
<br />24.52
<br />-9.67
<br />Not sampled
<br />03/19/18
<br />23.53
<br />8.68
<br />Not satn led
<br />MWA
<br />03/04/16
<br />NA
<br />NA
<br />Not stun pled
<br />13.72
<br />10/11/16
<br />29.09
<br />-15.37
<br />Not sampled
<br />03/10/17
<br />2530
<br />-11.58
<br />Not sampled
<br />09/15/17
<br />23.28
<br />-9.56
<br />Not sampled
<br />03/19/18
<br />22.29
<br />-8.57
<br />Not sampled
<br />N9\,\'-5
<br />03/31/14
<br />25.76
<br />-11 50
<br />Not sampled
<br />14.26
<br />06/13/14
<br />25.95
<br />-11.69
<br />Not sampled
<br />09/10/14
<br />26.76
<br />-12.50
<br />Not sampled
<br />12/23/14
<br />27.00
<br />-12.74
<br />Not sampled
<br />06/24/15
<br />27.85
<br />-13.59
<br />Not sampled
<br />03/04/16
<br />29.12
<br />-14.86
<br />Not sampled
<br />10/11/16
<br />29.50
<br />-15.24
<br />Not sampled
<br />03/10/17
<br />25.64
<br />-11.38
<br />Not sampled
<br />09/15/17
<br />23.67
<br />-9.41
<br />Not sampled
<br />03'19 IR
<br />1_2.71
<br />-845
<br />Not smipled
<br />MW -6
<br />03/04/16
<br />NA
<br />NA
<br />Not sampled
<br />14.53
<br />10/11/16
<br />30.02
<br />-15.49
<br />Not sampled
<br />03/10/17
<br />26.25
<br />-11.72
<br />Not sampled
<br />09/15/17
<br />24.19
<br />-9.66
<br />Not sampled
<br />03/19/18
<br />23'20
<br />-8 67
<br />Not stun led
<br />MW -I I
<br />14. 7!{
<br />No Data, well head used for elevation reference only.
<br />Notes:
<br />MTBE = Methyl tert-butyl ether; DIPE = Di -Isopropyl ether; ETBE = Ethyl tert-butyl ether; TAME = tert-Amyl methyl ether; TBA = cert -Butyl alcohol
<br />EDB = Ethylene dibromide; 1,2 -DCA = 1,2-Dichloroethane; TBA = tert-Butyl alcohol; ETOH = Ethanol; MEOH = Methanol
<br />µg(L = micrograms per liter = parts per billion (ppb)
<br />TOC Elev. = Top of Casing Elevation; DTW = Depth to Water
<br />NA = not Analyzed
<br />'Analysis for EDB, 1,2 -DCA, ETOH, and MEOH discontinued beginning September 30, 2016
<br />'Site well MW -1 elevation was surveyed by Erik Ohlson, PLS #8375, on November 22, 2013 along with off-site well MW -I 1. Off-site wells MW -2, MW -3, MW4, MW -5, and
<br />MW -6 are associated with adjacent Site (Stallworth Auto Sales) and surveyed by Morrow Surveying on March 6, 2006. The wellhead elevations for the off-site wells were
<br />normalized (+0.21 R) to Site well MW -I using the difference between the surveys for off-site well MW -11. Actual survey data available from Geotracker database.
<br />'Chromatogram not typical of diesel
<br />X:\Project\5000_rrj\5960 S1C LIST RFQ\5960B County of San Joaquin - Records Center\5960B4 Records Center\Reports\2018QI\Tables A and B.As
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