Agenda packet — Livermore City Council, August 20, 2026 (part 2 of 2)

ATTACHMENT 5
226 of 246 267
Pangea
Table C-1. Soil Analytical Data - Livermore Downtown Core Development, Livermore, California Boring / Sample IDDate Sampled
Sample Depth (ft
bgs)TPHg TPHdTPHmoBenzeneTolueneEthylbenzeneTotal XylenesPCETCECis-1,2-DCETrans-1,2-DCEVinyl ChlorideMethylene ChlorideOther VOCsArsenicTotal ChromiumChromium STLC (mg/L)LeadLead STLC (mg/L)NickelNickel STLC (mg/L)Other MetalsChlroinated HerbicidesAsbestosOrganochlorine Pesticides + PCBsBenzo (a) pyreneBenzo (b) fluorantheneBenzo (g,h,i) peryleneChryseneBis (2-ethylhexyl Phthalate)FluoranthenePhenolPyreneOther SVOCso-cresol am,p-cresol apentachrlorophenol Notes
%
100 230 5,100 0.044 2.9 1.4 2.3 0.42 0.46 0.19 0.67 0.0082 0.1 varies 0.067 -- -- 80 -- 86 -- varies varies -- varies 0.11 -- 2.5 2.2 0.8 0.69 0.16 45 varies -- -- 0.13 2,800 880 32,000 24 4,100 480 2,400 33 23 82 680 3.4 1.9 varies 0.98 -- -- 160 -- 86 -- varies varies -- varies 11 -- -- 9100 950 6700 98000 5000 varies -- -- 1 740 230 11,000 0.23 970 5.1 560 0.60 1.2 19 160 0.0082 490 varies 0.067 -- -- 80 -- 820 -- varies varies -- varies 0.11 -- -- 110 39 2400 23000 1800 varies -- -- 4 -- -- -- -- -- -- -- -- -- -- -- -- -- 11 1579 -- 97 -- 509 -- varies -- -- -- -- -- -- -- -- -- -- -- -- -- -- 1.7 mg/kgmg/kg
Tier 1 ESL:

Direct Exposure, Construction Worker ESL
Background Levels1:

Direct Exposure, Residential, Shallow Soil ESL:
8-12 -- -- -- ND ND ND ND <0.0043 ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 12-16 -- -- -- ND ND ND ND <0.0045 ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SB-5 9/15/2008 4-8 -- -- -- ND ND ND ND <0.0044 ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 8-12 -- -- -- ND ND ND ND <0.0043 ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 16-20 -- -- -- ND ND ND ND <0.0048 ND ND ND ND ND + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SB-6 9/16/2008 0-4 -- -- -- ND ND ND ND <0.0048 ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 4-8 -- -- -- ND ND ND ND <0.0046 ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SB-7 9/16/2008 0-4 -- -- -- ND ND ND ND <0.0045 ND ND ND ND ND + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 4-8 -- -- -- ND ND ND ND <0.0044 ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 8-9 -- -- -- ND ND ND ND <0.0044 ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SB-8 9/16/2008 4-8 -- -- -- ND ND ND ND 0.0050 ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 12-16 -- -- -- ND ND ND ND <0.0048 ND ND ND ND ND + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 16-20 -- -- -- ND ND ND ND <0.0047 ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SB-9 9/16/2008 4-8 -- -- -- ND ND ND ND <0.0042 ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 8-12 -- -- -- ND ND ND ND 0.0088 ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 16-20 -- -- -- ND ND ND ND <0.0042 ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SB-10 9/16/2008 0-4 -- -- -- ND ND ND ND 0.011 ND ND ND ND ND + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 8-12 -- -- -- ND ND ND ND <0.0042 ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 12-16 -- -- -- ND ND ND ND <0.0048 ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SB-11 9/16/2008 0-4 -- -- -- ND ND ND ND 0.013 ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 4-8 -- -- -- ND ND ND ND <0.0042 ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 12-16 -- -- -- ND ND ND ND <0.0049 ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- HA-1 2/12/2009 0.5 -- -- -- <0.0047 <0.0047 <0.0047<0.0094 0.040 <0.0047 <0.0047 <0.0047 <0.0093 ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- HA-2 2/12/2009 0.5 -- -- -- <0.0042 <0.0042 <0.0042<0.0084<0.0042 <0.0042 <0.0042 <0.0042 <0.0084 ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- HA-3 2/12/2009 0.5 -- -- -- <0.0042 <0.0042 <0.0042<0.0084 0.0083 <0.0042 <0.0042 <0.0042 <0.0084 ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- HA-4 2/12/2009 0.5 -- -- -- <0.0044 <0.0044 <0.0044<0.0088<0.0044 <0.0044 <0.0044 <0.0044 <0.0089 ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- HA-5 2/12/2009 0.5 -- -- -- <0.0045 <0.0045 <0.0045<0.0090<0.0045 <0.0045 <0.0045 <0.0045 <0.009 ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- HA-6 2/12/2009 0.5 -- -- -- <0.0048 <0.0048 <0.0048<0.0096<0.0048 <0.0048 <0.0048 <0.0048 <0.0096 ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- B-1 4/13/2018 0"-6" -- 5.4 70 -- -- -- -- -- -- -- -- -- -- -- 7.5 38 -- 56 1.8 81 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10"-16" -- 4.6 24 -- -- -- -- -- -- -- -- -- -- -- 6.2 39 -- 65 2.7 77 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- 18"-24" -- 13 60 -- -- -- -- -- -- -- -- -- -- -- 8.1 40 -- 100 a 3.9 74 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- B-2 4/13/2018 0"-6" -- 6.2 22 -- -- -- -- -- -- -- -- -- -- -- 2.8 30 -- 19 -- 68 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10"-16" -- 33 200 -- -- -- -- -- -- -- -- -- -- -- 55 13 -- 170 a 9.5 23 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- 18"-24" -- 16 78 -- -- -- -- -- -- -- -- -- -- -- 11 21 -- 93 a 2.1 46 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- B-3 4/13/2018 0"-6" -- 6.4 40 -- -- -- -- -- -- -- -- -- -- -- 20 41 -- 89 a 3.0 96 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10"-16" -- 4.7 32 -- -- -- -- -- -- -- -- -- -- -- 5.9 47 -- 120 a 1.6 120 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- 18"-24" -- 8.1 22 -- -- -- -- -- -- -- -- -- -- -- 8.4 37 -- 140 a 4.3 90 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- B-4 4/13/2018 0"-6" -- 4.6 23 -- -- -- -- -- -- -- -- -- -- -- 5.0 56 <0.50 58 2.1 110 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10"-16" -- 29 120 -- -- -- -- -- -- -- -- -- -- -- 28 30 -- 200 a 7.3 66 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- 18"-24" -- 2.3 <2.0 -- -- -- -- -- -- -- -- -- -- -- 6.4 36 -- 130 a 2.8 86 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- B-5 4/13/2018 0"-6" -- 60 280 -- -- -- -- -- -- -- -- -- -- -- 7.1 43 -- 41 -- 98 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10"-16" -- 3.9 24 -- -- -- -- -- -- -- -- -- -- -- 5.0 52 <0.50 22 -- 130 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- 18"-24" -- 4.6 16 -- -- -- -- -- -- -- -- -- -- -- 7.7 45 -- 27 -- 130 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- B-6 4/16/2018 0"-6" -- 3.0 18 -- -- -- -- -- -- -- -- -- -- -- 4.6 62 <0.50 11 -- 140 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10"-16" -- 9.0 24 -- -- -- -- -- -- -- -- -- -- -- 8.4 44 -- 43 -- 100 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- 18"-24" -- 11 34 -- -- -- -- -- -- -- -- -- -- -- 7.5 38 -- 41 -- 94 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- B-7 4/16/2018 0"-6" -- <1.0 7.5 -- -- -- -- -- -- -- -- -- -- -- 5.0 37 -- 19 -- 84 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10"-16" -- 13 44 -- -- -- -- -- -- -- -- -- -- -- 4.6 45 -- 130 a 14 110 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- 18"-24" -- 12 39 -- -- -- -- -- -- -- -- -- -- -- 4.0 44 -- 73 4.4 95 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- B-8 4/16/2018 0"-6" -- <1.0 <2.0 -- -- -- -- -- -- -- -- -- -- -- <2.5 18 -- <6.3 -- 17 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10"-16" -- 11 34 -- -- -- -- -- -- -- -- -- -- -- 8.2 39 -- 44 -- 80 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- 18"-24" -- 0.7 18 -- -- -- -- -- -- -- -- -- -- -- 5.4 34 -- 22 -- 85 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- B-9 4/16/2018 0"-6" -- 21 220 -- -- -- -- -- -- -- -- -- -- -- 4.3 38 -- 120 a 17 80 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10"-16" -- 20 190 -- -- -- -- -- -- -- -- -- -- -- 4.1 42 -- 110 a 9.3 83 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 18"-24" -- 11 95 -- -- -- -- -- -- -- -- -- -- -- 3.0 40 -- 50 1.3 98 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- B-10 4/16/2018 0"-6" -- 3.0 19 -- -- -- -- -- -- -- -- -- -- -- 2.6 32 -- <6.3 -- 43 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10"-16" -- <1.0 <2.0 -- -- -- -- -- -- -- -- -- -- -- 3.2 76 <0.20 8.8 -- 160 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 18"-24" -- 2.6 6.0 -- -- -- -- -- -- -- -- -- -- -- 3.0 57 <0.50 9.0 -- 370 1.9 + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- B-11 4/17/2018 0"-6" -- 17 120 -- -- -- -- -- -- -- -- -- -- -- 7.3 36 -- 63 1.6 74 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10"-16" -- 14 72 -- -- -- -- -- -- -- -- -- -- -- 5.1 30 -- 120 a 3.8 46 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 18"-24" -- 5.3 15 -- -- -- -- -- -- -- -- -- -- -- 3.6 18 -- 55 1.4 32 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- B-12 4/17/2018 0"-6" -- 6.1 53 -- -- -- -- -- -- -- -- -- -- -- 3.2 25 -- <6.3 -- 53 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10"-16" -- 37 130 -- -- -- -- -- -- -- -- -- -- -- 48 67 <0.50 7.3 -- 120 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 18"-24" -- 37 100 -- -- -- -- -- -- -- -- -- -- -- 18 52 <0.50 7.0 -- 140 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- B-13 4/17/2018 0"-6" -- 12 18 -- -- -- -- -- -- -- -- -- -- -- 2.6 30 -- <6.3 -- 55 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10"-16" -- <1.0 <2.0 -- -- -- -- -- -- -- -- -- -- -- 2.9 55 <0.50 9.0 -- 160 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 18"-24" -- 3.1 42 -- -- -- -- -- -- -- -- -- -- -- 3.4 52 <0.50 <6.3 -- 140 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- B-14 4/17/2018 0"-6" -- 3.8 28 -- -- -- -- -- -- -- -- -- -- -- 4.5 42 -- 38 -- 99 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10"-16" -- <1.0 <2.0 -- -- -- -- -- -- -- -- -- -- -- 4.4 45 -- 18 -- 120 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 18"-24" -- <1.0 <2.0 -- -- -- -- -- -- -- -- -- -- -- 2.7 50 -- <6.3 -- 120 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- B-15 4/17/2018 0"-6" -- <1.0 <2.0 -- -- -- -- -- -- -- -- -- -- -- 3.0 27 -- ND -- 45 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10"-16" -- 22 53 -- -- -- -- -- -- -- -- -- -- -- 7.4 41 -- 220 a 3.1 110 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 18"-24" -- 4.9 6.7 -- -- -- -- -- -- -- -- -- -- -- 4.9 44 -- 19 -- 130 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- B-16 4/17/2018 0"-6" -- 31 230 -- -- -- -- -- -- -- -- -- -- -- <2.5 19 -- <6.3 -- 36 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10"-16" -- 3.3 7.3 -- -- -- -- -- -- -- -- -- -- -- 3.3 62 <0.50 <6.3 -- 150 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 18"-24" -- 4.3 28 -- -- -- -- -- -- -- -- -- -- -- 3.1 47 -- <6.3 -- 150 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Various Addresses, BSK, April 2018
2093 Railroad Ave, Willdan, 2009

Page 2 of 4 ends

ATTACHMENT 5
227 of 246 268
Pangea
Table C-1. Soil Analytical Data - Livermore Downtown Core Development, Livermore, California Boring / Sample IDDate Sampled
Sample Depth (ft
bgs)TPHg TPHdTPHmoBenzeneTolueneEthylbenzeneTotal XylenesPCETCECis-1,2-DCETrans-1,2-DCEVinyl ChlorideMethylene ChlorideOther VOCsArsenicTotal ChromiumChromium STLC (mg/L)LeadLead STLC (mg/L)NickelNickel STLC (mg/L)Other MetalsChlroinated HerbicidesAsbestosOrganochlorine Pesticides + PCBsBenzo (a) pyreneBenzo (b) fluorantheneBenzo (g,h,i) peryleneChryseneBis (2-ethylhexyl Phthalate)FluoranthenePhenolPyreneOther SVOCso-cresol am,p-cresol apentachrlorophenol Notes
%
100 230 5,100 0.044 2.9 1.4 2.3 0.42 0.46 0.19 0.67 0.0082 0.1 varies 0.067 -- -- 80 -- 86 -- varies varies -- varies 0.11 -- 2.5 2.2 0.8 0.69 0.16 45 varies -- -- 0.13 2,800 880 32,000 24 4,100 480 2,400 33 23 82 680 3.4 1.9 varies 0.98 -- -- 160 -- 86 -- varies varies -- varies 11 -- -- 9100 950 6700 98000 5000 varies -- -- 1 740 230 11,000 0.23 970 5.1 560 0.60 1.2 19 160 0.0082 490 varies 0.067 -- -- 80 -- 820 -- varies varies -- varies 0.11 -- -- 110 39 2400 23000 1800 varies -- -- 4 -- -- -- -- -- -- -- -- -- -- -- -- -- 11 1579 -- 97 -- 509 -- varies -- -- -- -- -- -- -- -- -- -- -- -- -- -- 1.7 mg/kgmg/kg
Tier 1 ESL:

Direct Exposure, Construction Worker ESL
Background Levels1:

Direct Exposure, Residential, Shallow Soil ESL:

B-17 4/17/2018 0"-6" -- 16 150 -- -- -- -- -- -- -- -- -- -- -- 6.9 36 -- 33 -- 98 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10"-16" -- <1.0 <2.0 -- -- -- -- -- -- -- -- -- -- -- 3.4 51 <0.50 7.1 -- 120 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 18"-24" -- <1.0 <2.0 -- -- -- -- -- -- -- -- -- -- -- 3.6 62 <0.50 6.3 -- 140 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- B-18 4/23/2018 0"-6" -- 93 280 -- -- -- -- -- -- -- -- -- -- -- 4.2 40 -- 21 -- 64 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10"-16" -- 19 22 -- -- -- -- -- -- -- -- -- -- -- 10 42 -- 32 -- 100 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 18"-24" -- 28 <2.0 -- -- -- -- -- -- -- -- -- -- -- 9.5 34 -- 16 -- 64 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- B-19 4/26/2018 0"-6" -- 68 480 -- -- -- -- -- -- -- -- -- -- -- 7.0 45 -- 67 0.77 60 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10"-16" -- 17 150 -- -- -- -- -- -- -- -- -- -- -- 3.8 22 -- 17 -- 150 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 18"-24" -- 13 110 -- -- -- -- -- -- -- -- -- -- -- 3.5 32 -- 27 -- 110 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- B-20 4/26/2018 0"-6" -- 26 110 -- -- -- -- -- -- -- -- -- -- -- 8.4 47 -- 180 a 3.3 110 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10"-16" -- 17 73 -- -- -- -- -- -- -- -- -- -- -- 2.6 41 -- 63 3.9 73 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 18"-24" -- 35 130 -- -- -- -- -- -- -- -- -- -- -- 4.2 36 -- 120 a 4.1 130 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- B-21 4/26/2018 0"-6" -- 6.0 20 -- -- -- -- -- -- -- -- -- -- -- 3.3 37 -- 25 -- 20 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10"-16" -- 4.7 22 -- -- -- -- -- -- -- -- -- -- -- 5.8 51 <0.50 24 -- 22 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 18"-24" -- 6.3 29 -- -- -- -- -- -- -- -- -- -- -- 5.6 57 <0.50 33 -- 29 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- B-22 4/26/2018 0"-6" -- 4.1 36 -- -- -- -- -- -- -- -- -- -- -- 3.0 48 -- 48 -- 84 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10"-16" -- 4.8 9.2 -- -- -- -- -- -- -- -- -- -- -- 5.2 110 <0.50 470 a 20 160 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 18"-24" -- 3.3 10 -- -- -- -- -- -- -- -- -- -- -- 3.8 61 <0.50 120 5.5 150 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- B-23 4/26/2018 0"-6" -- 180 920 -- -- -- -- -- -- -- -- -- -- -- 4.5 46 -- 22 -- 88 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10"-16" -- 40 370 -- -- -- -- -- -- -- -- -- -- -- 4.3 52 <0.50 29 -- 110 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 18"-24" -- 17 120 -- -- -- -- -- -- -- -- -- -- -- 3.1 50 <0.50 23 -- 110 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- B-24 4/26/2018 0"-6" -- 8.1 58 -- -- -- -- -- -- -- -- -- -- -- 4.6 50 <0.50 22 -- 120 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10"-16" -- <1.0 48 -- -- -- -- -- -- -- -- -- -- -- 4.0 44 -- 15 -- 94 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 18"-24" -- <1.0 43 -- -- -- -- -- -- -- -- -- -- -- 2.9 36 -- 12 -- 84 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- B-25 5/22/2018 0"-6" -- 47 1000 -- -- -- -- -- -- -- -- -- -- -- 3.3 21 -- <6.3 -- 32 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10"-16" -- 30 580 -- -- -- -- -- -- -- -- -- -- -- 2.7 41 -- 11 -- 90 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 18"-24" -- <1.0 6.1 -- -- -- -- -- -- -- -- -- -- -- 3.7 50 <0.50 10 -- 120 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- B-26 5/22/2018 0"-6" -- 26 860 -- -- -- -- -- -- -- -- -- -- -- <2.5 15 -- <6.3 -- 27 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10"-16" -- 18 540 -- -- -- -- -- -- -- -- -- -- -- <2.5 50 <0.50 <6.3 -- 290 3.8 + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 18"-24" -- 4.2 110 -- -- -- -- -- -- -- -- -- -- -- <2.5 58 <0.50 <6.3 -- 330 3.0 + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- B-27 5/22/2018 0"-6" -- 7.8 120 -- -- -- -- -- -- -- -- -- -- -- <2.5 21 -- <6.3 -- 31 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10"-16" -- 4.6 18 -- -- -- -- -- -- -- -- -- -- -- 3.2 49 -- 8.8 -- 140 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 18"-24" -- 8.8 22 -- -- -- -- -- -- -- -- -- -- -- 2.8 100 <0.50 9.1 -- 270 1.2 + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- B-28 5/22/2018 0"-6" -- 8.4 260 -- -- -- -- -- -- -- -- -- -- -- 3.0 20 -- <6.3 -- 25 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10"-16" -- 6.5 150 -- -- -- -- -- -- -- -- -- -- -- <2.5 28 -- <6.3 -- 77 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 18"-24" -- 5.8 150 -- -- -- -- -- -- -- -- -- -- -- <2.5 31 -- <6.3 -- 140 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SG-4-3 6/20/2018 3.0 <1.0 <1.0 <5.0 -- -- -- -- -- -- -- -- -- -- -- 4.0 54 0.18 7.1 -- 140 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SG-4-6 6/20/2018 6.0 <1.0 <1.0 <5.0 -- -- -- -- -- -- -- -- -- -- -- 3.3 50 <0.10 4.7 -- 110 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SG-4-12 6/20/2018 12.0 <1.0 <1.0 <5.0 -- -- -- -- -- -- -- -- -- -- -- 4.3 48 -- 5.3 -- 120 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SG-15-3 6/20/2018 3.0 <1.0 <1.0 20 -- -- -- -- -- -- -- -- -- -- -- 3.2 73 0.47 4.9 -- 350 5.3 + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SG-15-6 6/20/2018 6.0 <1.0 <1.0 <5.0 -- -- -- -- -- -- -- -- -- -- -- 3.4 81 0.21 4.0 -- 420 2.7 + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SG-15-10 6/20/2018 10.0 <1.0 <1.0 <5.0 -- -- -- -- -- -- -- -- -- -- -- 3.9 47 -- 4.7 -- 140 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
SG-17-3 6/20/2018 3.0 1.8 <1.0 <5.0 -- -- -- -- -- -- -- -- -- -- -- 8.5 60 0.12 19 -- 150 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SG-17-6 6/20/2018 6.0 <1.0 <1.0 <5.0 -- -- -- -- -- -- -- -- -- -- -- 3.5 64 0.64 3.8 -- 280 2.5 + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SG-17-10 6/20/2018 10.0 <1.0 <1.0 <5.0 -- -- -- -- -- -- -- -- -- -- -- 3.2 34 -- 5.4 -- 88 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- L-1 6/18/2018 0.0-2.0 -- 14 74 -- -- -- -- -- -- -- -- -- -- -- 2.7 36 -- 110 1.9 90 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- L-2 6/18/2018 2.0-4.0 -- 53 27 -- -- -- -- -- -- -- -- -- -- -- 3.4 49 -- 5.1 -- 100 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- L-3 6/18/2018 4.0-6.0 -- 11 9.8 -- -- -- -- -- -- -- -- -- -- -- 3.7 47 -- 5.5 -- 110 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- L-4 6/18/2018 0.0-2.0 -- 2.5 11 -- -- -- -- -- -- -- -- -- -- -- 3.4 48 -- 7.8 -- 110 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- L-5 6/18/2018 2.0-4.0 -- 400 140 -- -- -- -- -- -- -- -- -- -- -- 3.0 60 -- 6.1 -- 190 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- L-6 6/18/2018 4.0-6.0 -- 39 19 -- -- -- -- -- -- -- -- -- -- -- 2.8 33 -- 3.6 -- 88 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- L-7 6/18/2018 0.0-2.0 -- 5.0 31 -- -- -- -- -- -- -- -- -- -- -- 4.0 52 -- 32 -- 110 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- L-8 6/18/2018 2.0-4.0 -- 2.6 15 -- -- -- -- -- -- -- -- -- -- -- 3.5 48 -- 13 -- 130 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- L-9 6/18/2018 4.0-6.0 -- 1.1 5.6 -- -- -- -- -- -- -- -- -- -- -- 3.5 45 -- 10 -- 120 -- + ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- SG-1A-2 8/2/2018 2.0 -- -- -- <0.0039 <0.0039 <0.0039<0.0078<0.0039 <0.0039 <0.0039 <0.0039 <0.0078 ND ND 3.4 62 0.30 37 -- 140 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SG-1A-4 8/2/2018 4.0 -- -- -- <0.0039 <0.0039 <0.0039<0.0078<0.0039 <0.0039 <0.0039 <0.0039 <0.0078 ND ND 2.9 71 0.27 9.7 -- 180 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SG-1A-8 8/2/2018 8.0 -- 1.4 <5.1 <0.0043 <0.0043 <0.0043<0.0086<0.0043 <0.0043 <0.0043 <0.0043 <0.0085 ND ND 3.3 110 0.37 4.9 -- 720 b 3.4 + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SG-1A-10 8/2/2018 10.0 -- -- -- <0.0040 <0.0040 <0.0040<0.0080<0.0039 <0.0040 <0.0040 <0.0040 <0.0080 ND ND 3.8 65 <0.25 6.0 -- 150 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SG-2A-2 8/2/2018 2.0 -- -- -- <0.0043 <0.0043 <0.0043<0.0086<0.0043 <0.0043 <0.0043 <0.0043 <0.0085 ND + 3.4 49 -- 230 10 110 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Acetone detected at 0.019 mg/kg SG-2A-8 8/2/2018 8.0 -- -- -- <0.0045 <0.0045 <0.0045<0.0090<0.0045 <0.0045 <0.0045 <0.0045 <0.0089 ND + 3.2 69 <0.25 5.2 -- 140 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Acetone detected at 0.022 mg/kg SG-2A-10 8/2/2018 10.0 -- -- -- <0.0043 <0.0043 <0.0043<0.0086<0.0043 <0.0043 <0.0043 <0.0043 <0.0087 ND ND 4.1 64 0.50 6.0 -- 200 2.7 + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SG-1-2 8/8/2018 2.0 -- -- -- <0.0036 <0.0036 <0.0036<0.0072 0.0072 <0.0036 <0.0036 <0.0036 <0.0073 ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SG-1-4 8/8/2018 4.0 -- -- -- <0.0048 <0.0048 <0.0048<0.0096<0.0048 <0.0048 <0.0048 <0.0048 <0.0095 ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SG-1-6 8/8/2018 6.0 -- -- -- <0.0053 <0.0053 <0.0053 <0.011 <0.0053 <0.0053 <0.0053 <0.0053 <0.011 ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SG-1-8 8/8/2018 8.0 -- -- -- <0.0046 <0.0046 <0.0046<0.0092<0.0046 <0.0046 <0.0046 <0.0046 <0.0092 ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SG-2-2 8/2/2018 2.0 -- -- -- <0.0033 <0.0033 <0.0033<0.0066<0.0033 <0.0033 <0.0033 <0.0033 <0.0067 ND + 3.2 67 <0.25 6.3 -- 140 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Acetone detected at 0.015 mg/kg SG-2-4 8/2/2018 4.0 -- -- -- <0.0047 <0.0047 <0.0047<0.0094<0.0047 <0.0047 <0.0047 <0.0047 <0.0093 ND ND 3.4 76 <0.25 5.1 -- 160 -- + -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SG-2-8 8/8/2018 8.0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Not analyzed -- -- -- -- -- -- -- -- -- -- -- -- -- --
2048 First St, Geosphere Consultants, June 2018
2048 First St, Pangea, November 2018
Various Addresses, Pangea, June 2018
2048 First St, Pangea, August 2018

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Table C-1. Soil Analytical Data - Livermore Downtown Core Development, Livermore, California Boring / Sample IDDate Sampled
Sample Depth (ft
bgs)TPHg TPHdTPHmoBenzeneTolueneEthylbenzeneTotal XylenesPCETCECis-1,2-DCETrans-1,2-DCEVinyl ChlorideMethylene ChlorideOther VOCsArsenicTotal ChromiumChromium STLC (mg/L)LeadLead STLC (mg/L)NickelNickel STLC (mg/L)Other MetalsChlroinated HerbicidesAsbestosOrganochlorine Pesticides + PCBsBenzo (a) pyreneBenzo (b) fluorantheneBenzo (g,h,i) peryleneChryseneBis (2-ethylhexyl Phthalate)FluoranthenePhenolPyreneOther SVOCso-cresol am,p-cresol apentachrlorophenol Notes
%
100 230 5,100 0.044 2.9 1.4 2.3 0.42 0.46 0.19 0.67 0.0082 0.1 varies 0.067 -- -- 80 -- 86 -- varies varies -- varies 0.11 -- 2.5 2.2 0.8 0.69 0.16 45 varies -- -- 0.13 2,800 880 32,000 24 4,100 480 2,400 33 23 82 680 3.4 1.9 varies 0.98 -- -- 160 -- 86 -- varies varies -- varies 11 -- -- 9100 950 6700 98000 5000 varies -- -- 1 740 230 11,000 0.23 970 5.1 560 0.60 1.2 19 160 0.0082 490 varies 0.067 -- -- 80 -- 820 -- varies varies -- varies 0.11 -- -- 110 39 2400 23000 1800 varies -- -- 4 -- -- -- -- -- -- -- -- -- -- -- -- -- 11 1579 -- 97 -- 509 -- varies -- -- -- -- -- -- -- -- -- -- -- -- -- -- 1.7 mg/kgmg/kg
Tier 1 ESL:

Direct Exposure, Construction Worker ESL
Background Levels1:

Direct Exposure, Residential, Shallow Soil ESL:

SB-1-0 11/19/2018 0.0 -- -- -- <0.0043 <0.0043 <0.0043<0.0086<0.0043 <0.0043 <0.0043 <0.0043 <0.0086 ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SB-1-2 11/19/2018 2.0 -- -- -- <0.0041 <0.0041 <0.0041<0.0082<0.0041 <0.0041 <0.0041 <0.0041 <0.0082 ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SB-1-4 11/19/2018 4.0 -- -- -- <0.0044 <0.0044 <0.0044<0.0088<0.0044 <0.0044 <0.0044 <0.0044 <0.0088 ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SB-2-0 11/19/2018 0.0 -- -- -- <0.0041 <0.0041 <0.0041<0.0082<0.0041 <0.0041 <0.0041 <0.0041 <0.0082 ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SB-2-2 11/19/2018 2.0 -- -- -- <0.0044 <0.0044 <0.0044<0.0087<0.0044 <0.0044 <0.0044 <0.0044 <0.0087 ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SB-2-4 11/19/2018 4.0 -- -- -- <0.0039 <0.0039 <0.0039<0.0077<0.0039 <0.0039 <0.0039 <0.0039 <0.0077 ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SB-2-7.5 11/19/2018 7.5 -- -- -- <0.0050 <0.0050 <0.0050 <0.010 <0.0050 <0.0050 <0.0050 <0.0050 <0.010 ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SB-3-0 11/19/2018 0.0 -- -- -- <0.0045 <0.0045 <0.0045<0.0089<0.0045 <0.0045 <0.0045 <0.0045 <0.0089 ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SB-3-2 11/19/2018 2.0 -- -- -- <0.0044 <0.0044 <0.0044<0.0089<0.0044 <0.0044 <0.0044 <0.0044 <0.0089 ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SB-3-4 11/19/2018 4.0 -- -- -- <0.0045 <0.0045 <0.0045<0.0090<0.0045 <0.0045 <0.0045 <0.0045 <0.0090 ND See Note -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Acetone detected at 0.025 mg/kg SB-3-5.5 11/19/2018 5.5 -- -- -- <0.0045 <0.0045 <0.0045<0.0090<0.0045 <0.0045 <0.0045 <0.0045 <0.0090 ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SGMF-2-23 11/14/2018 23.0 -- -- -- <3.8 <3.8 <3.8 <7.6 <3.8 <3.8 <3.8 <3.8 <3.8 ND <3.8 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SGMF-5-5 8/25/2021 5.0 -- -- -- <0.00079<0.00079<0.00079<0.0031<0.00079<0.00079<0.00079<0.00079<0.00039ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SGMF-6-5 8/25/2021 5.0 -- -- -- <0.00093<0.00093<0.00093<0.0037<0.00093<0.00093<0.00093<0.00093<0.00047ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SGMF-7-5 8/25/2021 5.0 -- -- -- <0.00091<0.00091<0.00091<0.0037<0.00091<0.00091<0.00091<0.00091<0.00046ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SGMF-8-5 8/23/2021 5.0 -- -- -- <0.00082<0.00082<0.00082<0.033<0.00082<0.00082<0.00082<0.00082<0.000410.0023 ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SGMF-8-15 8/24/2021 15.0 -- -- -- <0.00089<0.00089<0.00089<0.036<0.00089<0.00089<0.00089<0.00089<0.000440.0019 ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SGMF-9-5 8/23/2021 5.0 -- -- -- <0.00091<0.00091<0.00091<0.0037<0.00091<0.00091<0.00091<0.00091<0.000460.0022 ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SGMF-10-5 8/24/2021 5.0 -- -- -- <0.00088<0.00088<0.00088<0.035<0.00088<0.00088<0.00088<0.00088<0.00044ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SGMF-10-15 8/24/2021 15.0 -- -- -- <0.00084<0.00084<0.00084<0.0034<0.00084<0.00084<0.00084<0.00084<0.00042ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SGMF-11-5 8/26/2021 5.0 -- -- -- <0.00086<0.00086<0.00086<0.0034<0.00086<0.00086<0.00086<0.00086<0.00043ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- SGMF-12-5 8/26/2021 5.0 -- -- -- <0.00082<0.00082<0.00082<0.0033<0.00082<0.00082<0.00082<0.00082<0.00041ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- P1-4 8/26/2021 4.0 <1.0 <2.0 <10.0 <0.0050 <0.0050 <0.0050<0.0050<0.0050 <0.0050 <0.0050 <0.0050<0.00025ND 4.7 72 -- 5.2 -- 140 -- + -- ND ND <0.0025 <0.0025<0.0025<0.0025<0.0025 <0.05 <0.0025 ND <0.25 <0.25 <0.062 P1-8 8/26/2021 8.0 <1.0 <2.0 <10.0 <0.0050 <0.0050 <0.0050<0.0050<0.0050 <0.0050 <0.0050 <0.0050<0.00025ND ND 4.5 77 -- 5.0 -- 300 -- + -- ND + 0.0010 <0.00250.0021 <0.0025<0.0025 <0.05 <0.0025 ND <0.25 <0.25 <0.062 P1-12 8/26/2021 12.0 <1.0 <2.0 <10.0 <0.0050 <0.0050 <0.0050<0.0050<0.0050 <0.0050 <0.0050 <0.0050<0.00025ND ND 5.0 67 -- 9.4 -- 220 -- + -- ND ND <0.0025 <0.0025<0.0025<0.0025<0.0025 <0.05 <0.0025 ND <0.25 <0.25 <0.062 P2-4 8/26/2021 4.0 <1.0 <2.0 <10.0 <0.0050 <0.0050 <0.0050<0.0050<0.0050 <0.0050 <0.0050 <0.0050<0.00025ND ND 5.1 77 -- 7.2 -- 140 -- + -- ND ND <0.0025 <0.0025<0.0025<0.0025<0.0025 <0.05 <0.0025 ND <0.25 <0.25 <0.062 P2-8 8/26/2021 8.0 <1.0 <2.0 <10.0 <0.0050 <0.0050 <0.0050<0.0050<0.0050 <0.0050 <0.0050 <0.0050<0.00025ND ND 4.1 42 -- 3.8 -- 95 -- + -- ND ND <0.0025 <0.0025<0.0025<0.0025<0.0025 <0.05 <0.0025 ND <0.25 <0.25 <0.062 P2-12 8/26/2021 12.0 <1.0 <2.0 <10.0 <0.0050 <0.0050 <0.0050<0.0050<0.0050 <0.0050 <0.0050 <0.0050<0.00025ND ND 5.0 81 -- 6.4 -- 180 -- + -- ND ND <0.0025 <0.0025<0.0025<0.0025<0.0025 <0.05 <0.0025 ND <0.25 <0.25 <0.062 P3-4 8/26/2021 4.0 <1.0 <2.0 <10.0 <0.0050 <0.0050 <0.0050<0.0050<0.0050 <0.0050 <0.0050 <0.0050<0.00025ND ND 11.0 70 -- 16 -- 150 -- + -- ND ND <0.0025 <0.0025<0.0025<0.0025<0.0025 <0.05 <0.0025 ND <2 <2 <0.5 P3-8 8/26/2021 8.0 <1.0 <2.0 <10.0 <0.0050 <0.0050 <0.0050<0.0050<0.0050 <0.0050 <0.0050 <0.0050<0.00025ND ND 3.4 160 -- 2.6 -- 670 b -- + -- ND ND <0.0025 <0.0025<0.0025<0.0025<0.0025 <0.05 <0.0025 ND <0.25 <0.25 <0.062 P3-12 8/26/2021 12.0 <1.0 <2.0 <10.0 <0.0050 <0.0050 <0.0050<0.0050<0.0050 <0.0050 <0.0050 <0.0050<0.00025ND ND 4.9 47 -- 5.9 -- 150 -- + -- ND ND <0.0025 <0.0025<0.0025<0.0025<0.0025 <0.05 <0.0025 ND <0.25 <0.25 <0.062 P4-4 8/23/2021 4.0 <1.0 <2.0 <10.0 <0.0050 <0.0050 <0.0050<0.0050<0.0050 <0.0050 <0.0050 <0.0050<0.00025ND ND 4.1 69 -- 6.3 -- 130 -- + -- ND + <0.0025 <0.0025<0.00250.0280 0.0017 <0.05 <0.0025 ND <0.25 <0.25 <0.062 P4-8 8/24/2021 8.0 <1.0 <2.0 <10.0 <0.0050 <0.0050 <0.0050<0.0050<0.0050 <0.0050 <0.0050 <0.0050<0.00025ND ND 4.0 120 -- 4.2 -- 340 -- + -- ND + <0.0025 <0.0025<0.00250.0340 <0.0013 <0.05 <0.0025 ND <0.25 <0.25 <0.062 P4-12 8/24/2021 12.0 <1.0 <2.0 <10.0 <0.0050 <0.0050 <0.0050<0.0050<0.0050 <0.0050 <0.0050 <0.0050<0.00025ND ND 5.8 72 -- 5.2 -- 310 -- + -- ND + <0.0025 <0.0025<0.0025<0.0025<0.0013 0.054 <0.0025 ND <0.25 <0.25 <0.062 P5-4 8/24/2021 4.0 <1.0 <2.0 <10.0 <0.0050 <0.0050 <0.0050<0.0050<0.0050 <0.0050 <0.0050 <0.0050<0.00025ND ND 3.1 41 -- 6.7 -- 99 -- + -- ND + <0.0025 <0.0025<0.0025<0.00250.0390 <0.05 <0.0025 ND <0.25 <0.25 <0.062 P5-8 8/24/2021 8.0 <1.0 <2.0 <10.0 <0.0050 <0.0050 <0.0050<0.0050<0.0050 <0.0050 <0.0050 <0.0050<0.00025ND ND 4.6 51 -- 6.8 -- 490 -- + -- ND + 0.0031 0.0030 0.0028 <0.00250.0045 <0.05 0.0028 ND <0.25 <0.25 <0.062 P5-12 8/24/2021 12.0 <1.0 <2.0 <10.0 <0.0050 <0.0050 <0.0050<0.0050<0.0050 <0.0050 <0.0050 <0.0050<0.00025ND ND 6.0 80 -- 7.0 -- 160 -- + -- ND + <0.0025 <0.0025<0.0025<0.00250.0032 <0.05 <0.0025 ND <0.25 <0.25 <0.062 Notes and Abbreviations:

TPH = total petroleum hydrocarbons as gasoline (TPHg), diesel (TPHd), and/or motor oil (TPHmo) range PCE = tetrachloroethene
TCE = trichloroethene
DCE = dichloroethene
Other VOCs = volatile organic compounds not otherwise listed ft bgs = feet below ground surface
mg/kg = milligrams per kilogram
< n = Chemical not present at a concentration in excess of detection limit shown. + = chemicals detected at relatively low concentrations. See laboratory reports for details. -- = not applicable
ND = Not Detected at levels above laboratory reporting limits. Limits vary by constituent.

BOLD = Analyte detected above Tier 1 ESL, except total lead is bold above the residential human health direct exposure ESL of 80 mg/kg (and STLC > 5 mg/L).

GREY HIGHLIGHT = Analyte concentration exceeds construction worker ESL and background level if applicable (see notes a, b).

RED HIGHLIGHT = Analyte concentration exceeds criteria for waste soil classification as Class I Non-RCRA (California) hazardous waste. a = 95UCL concentration of lead (75 mg/kg for the April 2018 BSK data set, and 68 mg/kg in Old Train Depot specifc soil) is below the residential ESL for soil (80 mg/kg) and construction ESL for soil (160 mg/kg). b = Only two detected concentrations of nickel in soils exceeds background (509 mg/kg); the 95 UCL concentration of nickel in Old Train Depot site soil is 162 mg/kg.

ESL = Environmental Screening Levels. Established by the SFBRWQCB, Interim Final - Revised Feb 2016.

Data Gap Assessment 2021
1 = background levels (except arsenic) taken from Bradford (1996) "Background Concentrations of Trace and Major Elements in California Soils." Arsenic background taken from "Establishing Background Arsenic in Soil of the Urbanized San Francisco Bay Region," by Dylan Jacques Duverge (December 2011).

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Table C-2 - Groundwater Analytical Data - Livermore Downtown Core Development, Livermore, California Sample /
Boring ID
Date
Sampled
TOC
Elevation
(ft amsl)
Sample Depth /
Screened
Interval
(ft bgs)
Depth to
Water (feet
below TOC)
Groundwater
Elevation
(feet amsl)TPHgTPHdTPHmoBenzeneNaphthalenePCETCECis-1,2-DCETrans-1,2-DCEVinyl ChlorideChloroformOther VOCs Notes
µg/L
100 100 -- 0.42 0.17 0.64 1.2 6.0 10 0.0086 0.81 --
-- -- -- 5.0 17 5.0 5.0 70 100 2.0 -- --
MW-1 9/22/2021 487.49 55-60 52.00 435.49 <50 1,600 1,700 <0.2 <0.3 3.3 <0.50 <0.5 <0.5 <0.0050 0.14 -- MW-2 9/22/2021 486.26 60-72 51.57 434.69 <50 <100 <500 <0.2 <0.3 <0.20 0.98 0.63 0.83 0.086 <0.1 + 1,1-DCE detected at 0.047 µg/L MW-3 9/22/2021 484.50 60-72 50.53 433.97 <50 <100 <500 <0.2 <0.3 2.3 <0.5 <0.5 <0.5 0.65 <0.1 -- MW-4 9/22/2021 484.31 62-67 51.29 433.02 <50 <100 <500 <0.2 <0.3 5.6 <0.5 <0.5 <0.5 <0.0050 1.1 -- MWMF-5 9/22/2021 481.90 62-72 51.74 430.16 <50 <100 <500 <0.2 <0.3 7.5 <0.5 <0.5 <0.5 <0.0050 0.460 -- MWMF-6 9/22/2021 482.87 62-72 51.11 431.76 <50 <100 <500 <0.2 <0.3 5.8 <0.5 <0.5 <0.5 <0.0050 0.850 -- Dup 9/22/2021 482.87 62-72 51.11 431.76 <50 <100 <500 <0.2 <0.3 6.1 <0.5 <0.5 <0.5 <0.0050 0.860 -- MWMF-6-54 8/5/2021 -- 54 -- -- <50 <50 <250 <0.2 <0.3 8.1 <0.5 <0.5 <0.5 <.005 1.0 -- HP-5-MF54 9/8/2021 -- 54 -- -- -- -- -- <0.2 <0.3 7.4 <0.5 <0.5 <0.5 <.005 0.260 -- no TPH information in lab PDF HP-6-MF56 8/12/2021 -- 56 -- -- <50 <50 <250 <0.2 <0.3 8.9 <0.5 <0.5 <0.5 <.005 1.3 -- HP-7-MF54 8/5/2021 -- 54 -- -- <50 <50 <250 <0.5 <1.8 9.5 <0.21 <0.22 <0.24 <0.3 <0.18 -- HP-7-MF72 8/9/2021 -- 72 -- -- <50 <50 <250 <0.2 <0.3 8.8 <0.5 <0.5 <0.5 <.005 0.25 -- HP-8-MF71 8/18/2021 -- 71 -- -- <50 140 450 <0.2 <0.3 6.4 <0.5 <0.5 <0.5 <.005 0.30 -- HP-11-MF72 8/14/2021 -- 72 -- -- <50 64 <250 <0.2 <0.3 2.3 <0.5 <0.5 <0.5 <.005 0.29 -- HP-7-JC 8/18/2021 60-64 -- -- <50 <50 <250 <0.2 <0.3 1.2 <0.5 <0.5 <0.5 <0.005 1.1 -- HP-8-JC 8/18/2021 60-64 -- -- <50 94 310 <0.2 <0.3 3.0 <0.5 <0.5 <0.5 <0.005 1.2 -- MW-1 7/26/2018 487.49 55-60 37.03 43269.97 -- -- -- 0.613 0.146 3.05 <0.101 <0.114 <0.104 <0.129 + MW-2 7/26/2018 486.26 60-72 36.64 43270.36 -- -- -- <0.102 0.126 <0.157 0.920 1.29 1.67 <0.129 + MW-3 7/26/2018 484.50 60-72 35.56 43271.44 -- -- -- <0.102 0.202 0.303 0.391 1.02 2.33 4.14 + MW-4 7/26/2018 484.31 62-67 36.71 43270.29 -- -- -- <0.102 0.117 10.2 0.138 <0.114 <0.104 <0.129 + B-2 (MW-1) 6/18/2018 55-60 -- -- <50 96 <250 <0.50 <0.50 11 <0.50 <0.50 <0.50 <0.50 -- HP-1-QC ######## 62-70 46.90 -- -- -- -- <0.5 <2.0 7.0 <0.5 <0.5 <0.5 <0.5 + Up/crossgradient of site HP-2-QC 11/8/2018 56-68 45.80 -- -- -- -- <3.31 97.3 <3.72 <3.98 <2.60 <3.96 <2.59 + Upgradient of site HP-3-QC 11/8/2018 66-70 49.10 -- -- -- -- <0.331 <1.0 8.43 <0.398 <0.260 <0.396 <0.259 -- Downgradient of site HP-4-QC 11/8/2018 66-70 52.00 -- -- -- -- <0.331 <1.0 3.21 1.20 <0.260 <0.396 <0.259 -- Downgradient of site HP-5-QC ######## 66-70 45.30 -- -- -- -- <0.5 <2.0 7.6 <0.5 <0.5 <0.5 <0.5 + Downgradient of site Multifamily Grab Groundwater Samples, 2018
HP-1-MF ######## 66-70 50.10 -- -- -- -- <0.5 <2.0 16 <0.5 <0.5 <0.5 <0.5 + HP-2-MF ######## 66-70 46.80 -- -- -- -- <0.5 <0.5 4.6 <0.5 <0.5 <0.5 <0.5 + HP-3-MF ######## 62-70 52.00 -- -- -- -- <0.5 <0.5 10 <0.5 <0.5 <0.5 <0.5 + J Cleaners Grab Groundwater Samples, 2018
HP-1-JC ######## 58-64.2 47.20 -- -- -- -- <0.5 <2.0 <0.5 <0.5 <0.5 <0.5 <0.5 + HP-2-JC ######## 60-64 46.85 -- -- -- -- <0.5 <2.0 2.7 <0.5 <0.5 <0.5 <0.5 + HP-3-JC ######## 60-64 45.10 -- -- -- -- <0.5 <2.0 <0.5 <0.5 <0.5 <0.5 <0.5 + HP-4-JC ######## 60-64 45.55 -- -- -- -- <0.5 <2.0 <0.5 <0.5 <0.5 <0.5 <0.5 + HP-5-JC ######## 60-64 45.40 -- -- -- -- <0.5 <2.0 <0.5 <0.5 <0.5 <0.5 <0.5 + HP-6-JC ######## 60-64 44.90 -- -- -- -- <0.5 <2.0 0.7 <0.5 <0.5 <0.5 <0.5 + Tier 1 ESL:

Monitoring Wells, 2021
Grab Groundwater Samples, 2021
Monitoring Wells, 2018
Grab Groundwater Samples, 2018
MCL:

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B-1 5/2/2005 31-35 -- -- 160 <62 <62 <0.5 19 <0.5 <0.5 <0.5 <0.5 ND 5/2/2005 40-44 -- -- 160 330 480 <0.5 18 <0.5 <0.5 <0.5 <0.5 ND B-2 5/2/2005 31-35 -- -- <50 230 72 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 ND B-3 5/2/2005 31-35 -- -- 160 <56 <56 <0.5 6.8 <0.5 <0.5 <0.5 <0.5 ND B-4 5/2/2005 31-35 -- -- 170 <57 <57 <0.5 34 1.0 <0.5 <0.5 <0.5 ND B-6 5/2/2005 31-35 -- -- 170 <56 <56 <0.5 31 0.91 <0.5 <0.5 <0.5 + B-7 5/2/2005 31-35 -- -- 210 220 130 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 + A2-1 12/4/2007 54-56 -- -- -- -- -- -- 1.8 2.7 19 20 7.7 -- Duplicate-1(B-1)5/2/2005 31-35 -- -- 160 -- -- <0.5 21 <0.5 -- -- -- ND Duplicate-2(B-3)5/2/2005 31-35 -- -- 150 <54 56 <0.5 4.8 <0.5 -- -- -- ND Duplicate-3(B-4)5/2/2005 31-35 -- -- 160 <59 <59 <0.5 32 0.88 -- -- -- ND Notes & Abbreviations:

TOC Elevation - Top of casing elevation surveyed by City of Livermore contracted surveyors using NAVD 88 benchmark elevation.

TPH = total petroleum hydrocarbons as gasoline (TPHg), diesel (TPHd), and/or motor oil (TPHmo) range PCE = tetrachloroethene
TCE = trichloroethene
DCE = dichloroethene
Other VOCs = volatile organic compounds not otherwise listed ft bgs = feet below ground surface
µg/L = micrograms per Liter
< n = Chemical not present at a concentration in excess of detection limit shown. -- = not applicable
ND = Not Detected at levels above laboratory reporting limits. Limits vary by constituent.

BOLD = Analyte detected above Tier 1 ESL.

ESL = Environmental Screening Levels. Established by the SFBRWQCB, Interim Final - Revised 2019. 2009-2111 Railroad Ave, Fugro, May 2005
2044 & 2048 First St, Fugro, December 2007
Quality Control Samples
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Table C-3. Soil Gas Analytical Data - Livermore Downtown Core, Livermore, CA Boring / Sample ID Date Sampled
Sample Depth (ft
bgs)PCETCEcis-1,2-DCEtrans-1,2-DCEVinyl ChlorideBenzeneEthylbenzeneTPH (Low Fraction)2-Propanol (Leak Check)Other VOCs Notes
240 240 4,200 42,000 4.7 48 560 -- -- --
2,100 3,000 35,000 350,000 160 420 4,900 -- -- --
SG-4-20 9/14/2021 20 606 <1.07 <0.793 <0.793 <0.511 <0.639 1.66 <826 6.39 a SG-5-5 9/16/2021 5 49.5 <1.07 <0.793 <0.793 <0.511 <0.639 <0.867 <826 3.32 a SGMF-1-5 9/14/2021 5 183 <1.07 <0.793 <0.793 <0.511 <0.639 <0.867 <826 3.17 a SGMF-2-15 9/14/2021 15 451 1.24 <0.793 <0.793 <0.511 2.18 <0.867 1,060 5.58 a SGMF-3-15 9/16/2021 15 3,300 1.44 <0.793 <0.793 <0.511 <0.639 <0.867 2,260 14.30 a SGMF-3-25 9/16/2021 25 4,180 1.97 <0.793 <0.793 <0.511 <0.639 <0.867 3,020 20.00 a SGMF-3-25-DUP 9/16/2021 25 3,350 2.79 <0.793 <0.793 <0.511 <0.639 <0.867 2,290 36.40 a SGMF-4-5 9/14/2021 5 1,330 <1.07 <0.793 <0.793 <0.511 <0.639 <0.867 1,210 3.91 a SGMF-4-15 9/14/2021 15 767 <1.07 <0.793 <0.793 <0.511 <0.639 <0.867 1,100 5.68 a SGMF-4-15-DUP 9/14/2021 15 657 <1.07 <0.793 <0.793 <0.511 <0.639 <0.867 <826 5.28 a SGMF-5-5 9/16/2021 5 1,180 1.18 <0.793 <0.793 <0.511 <0.639 <0.867 1,320 <3.07 a SGMF-6-5 9/16/2021 5 621 <1.07 <0.793 <0.793 <0.511 <0.639 <0.867 946 <3.07 a SGMF-7-5 9/14/2021 5 454 <1.07 <0.793 <0.793 <0.511 0.850 <0.867 901 6.29 a SGMF-8-5 9/16/2021 5 612 <1.07 <0.793 <0.793 <0.511 <0.639 <0.867 <826 23.60 a SGMF-8-15 9/16/2021 15 1,190 4.20 <0.793 <0.793 <0.511 0.917 <0.867 1,070 15.20 a SGMF-9-5 9/16/2021 5 5,190 2.65 <0.793 <0.793 <0.511 <0.639 <0.867 2,160 60.00 a SGMF-10-5 9/16/2021 5 754 1.69 <0.793 <0.793 <0.511 <0.639 <0.867 1,280 25.80 a SGMF-10-15 9/16/2021 15 1,150 <1.07 <0.793 <0.793 <0.511 2.66 <0.867 1,260 9.29 a SGMF-11-5 9/16/2021 5 273 <1.07 <0.793 <0.793 <0.511 0.69 1.29 <826 3.44 a SGMF-12-15 9/16/2021 15 14.3 <1.07 <0.793 <0.793 <0.511 5.43 <0.867 <826 <3.07 a SHROUD 1 9/16/2021 -- -- -- -- -- -- -- -- -- 59500 --
SHROUD 2 9/16/2021 -- -- -- -- -- -- -- -- -- 102000 -- SGJC-1-5 11/27/2018 4.5-5.5 122 <1.07 <0.793 <0.793 <0.511 0.845 2.35 4.90 + SGJC-2-5 11/27/2018 4.5-5.5 322 <1.07 <0.793 <0.793 <0.511 <0.639 1.76 <3.07 + SGMF-1-5 11/27/2018 4.5-5.5 56.5 <1.07 <0.908 <0.908 <0.511 <0.639 2.18 <207 7.11 + SGMF-2-5 11/27/2018 4.5-5.5 108 <1.07 <0.793 <0.793 <0.511 <0.639 <0.867 <207 38.9 + SGMF-2-15 11/27/2018 14.5-15.5 809 <1.07 <0.793 <0.793 <0.511 2 <0.867 960 <3.07 + SGMF-2-25 11/27/2018 24.5-25.5 1,850 3.9 <0.793 <0.793 <0.511 58 1.10 3,870 8.23 + SGMF-3-15 11/28/2018 14.5-15.5 1,860 1.4 <0.793 <0.793 <0.511 2.1 <0.867 2,130 28.7 + SGMF-3-25 11/28/2018 24.5-25.5 5,340 7.2 <0.793 <0.793 <0.511 5.0 <0.867 3,680 4.86 + SGMF-4-5 11/28/2018 4.5-5.5 387 <1.07 <0.793 <0.793 <0.511 0.863 4.19 611 14.5 + SGMF-4-55 11/28/2018 14.5-15.5 1,070 <1.07 <0.793 <0.793 <0.511 3.55 10.60 1,540 96.1 + SGMF-4-25 11/28/2018 24.5-25.5 3,320 12.0 <0.793 0.826 <0.511 14.1 22.10 4,080 7.87 + SGQC-1-5 11/8/2018 4.5-5.5 380 <1.07 <0.793 <0.793 <0.511 14.3 3.19 811 25.9 + SGQC-2-5 11/8/2018 4.5-5.5 103 <1.07 <0.793 <0.793 <0.511 17.8 12.7 1,870 <3.30 + SGQC-2-15 11/8/2018 14.5-15.5 1,150 1.44 <0.793 <0.793 <0.511 18.2 3.30 2,080 15.4 + SGQC-3-5 11/8/2018 4.5-5.5 584 <1.07 <0.793 <0.793 <0.511 14 1.91 2,670 <3.07 + SGQC-3-15 11/8/2018 14.5-15.5 346 <1.07 <0.793 <0.793 <0.511 4.37 1.26 1,410 5.79 + SGQC-4-15 11/12/2018 14.5-15.5 2,010 <1.07 <0.793 <0.793 <0.511 2.02 <0.867 2,090 4.80 + SGQC-4-30 11/12/2018 29.5-30.5 1,270 <1.07 <0.793 <0.793 <0.511 3.25 8.43 3,570 <3.07 + SGQC-4-30 (REP) 11/12/2018 29.5-30.5 1,030 <1.07 <0.793 <0.793 <0.511 3.00 5.97 3,310 <3.07 + SGQC-5-5 11/9/2018 4.5-5.5 49.9 <1.07 <0.793 <0.793 <0.511 4.99 11.3 845 26.7 + SGQC-5-15 11/9/2018 14.5-15.5 313 1.29 <0.793 <0.793 <0.511 13.8 12.0 3,530 4.71 + SGQC-5-30 11/9/2018 29.5-30.5 157 1.56 <0.793 <0.793 <0.511 117 69.9 15,000 <3.07 + SGQC-6-5 11/9/2018 4.5-5.5 318 <1.07 <0.793 <0.793 <0.511 27.1 43.6 4,060 8.90 + SGQC-6-15 11/9/2018 14.5-15.5 111 <1.07 <0.793 <0.793 <0.511 115 115 10,200 160 + SGQC-6-30 11/9/2018 29.5-30.5 690 27.8 <0.793 4.39 0.802 86.5 110 8,890 <3.07 + SGQC-7-5 11/9/2018 4.5-5.5 100 <1.07 <0.793 <0.793 <0.511 2.65 3.01 360 9.12 + SGQC-7-15 11/9/2018 14.5-15.5 1,010 <1.07 <0.793 <0.793 <0.511 11.6 3.11 1,400 59.8 + SHROUD 11/12/2018 -- -- -- -- -- -- -- -- ####### --
SG-1-8 8/13/2018 7-8 5,630 2.41 <0.793 <0.793 <0.511 <0.639 <0.867 600 5.63 + SG-2-8 8/13/2018 7-8 780 <1.07 <0.793 <0.793 <0.511 2.90 2.31 632 <3.07 + SG-1A-10 8/13/2018 9-10 4,560 1.19 <0.793 <0.793 <0.511 2.03 1.01 678 4.21 + SG-2A-10 8/13/2018 9-10 778 <1.07 <0.793 <0.793 <0.511 2.07 <0.867 610 <3.07 + SS-1 8/2/2018 0.5 5,470 1.95 <0.793 <0.793 <0.511 <0.639 <0.867 1,040 361 + SS-2 8/2/2018 0.5 6,040 2.13 <0.793 <0.793 <0.511 <0.639 <0.867 863 1,570 + 1.1% IPA in sample, Naphthalene detected at 6.19 µg/m3 SS-3 8/2/2018 0.5 1,080 1.97 <0.793 <0.793 <0.511 <0.639 <0.867 894 415 + Naphthalene detected at 3.31 µg/m3 SS-3 8/2/2018 0.5 1,020 <1.07 <0.793 <0.793 <0.511 <0.639 <0.867 877 198 + Duplicate Sample µg/m3
Residential ESL for Vapor Intrusion Human Health Risk:

Commercial ESL for Vapor Intrusion Human Health Risk:

Pangea, September 2021
J Cleaners, Pangea, November 2018
MultiFamily, Pangea, November 2018
Sub-slab Gas Data
2048 First St, Pangea, August 2018
Soil Gas Data
2048 First St, Pangea, November 2018
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Table C-3. Soil Gas Analytical Data - Livermore Downtown Core, Livermore, CA Boring / Sample ID Date Sampled
Sample Depth (ft
bgs)PCETCEcis-1,2-DCEtrans-1,2-DCEVinyl ChlorideBenzeneEthylbenzeneTPH (Low Fraction)2-Propanol (Leak Check)Other VOCs Notes
240 240 4,200 42,000 4.7 48 560 -- -- --
2,100 3,000 35,000 350,000 160 420 4,900 -- -- --
µg/m3
Residential ESL for Vapor Intrusion Human Health Risk:

Commercial ESL for Vapor Intrusion Human Health Risk:

SS-4 8/2/2018 0.5 859 <1.07 <0.793 <0.793 <0.511 5.37 0.910 1,190 458 + Naphthalene detected at 4.66 µg/m3 SS-5 8/2/2018 0.5 317 <1.07 <0.793 <0.793 <0.511 <0.639 <0.867 729 223 + SG-4-5 6/22/2018 5.0 309 <1.07 <0.793 <0.793 <0.511 0.997 2.35 551 5.04 + SG-4-20 6/22/2018 20.0 420 <1.07 <0.793 <0.793 <0.511 2.70 0.954 1,900 <3.07 + SG-5-5 6/21/2018 5.0 34.6 <1.07 <0.793 <0.793 <0.511 0.676 <0.867 512 4.70 + SG-6-5 6/21/2018 5.0 168 <1.07 <0.793 <0.793 <0.511 <0.639 1.27 329 242 + SG-7-5 6/21/2018 5.0 73.2 <1.07 <0.793 <0.793 <0.511 2.29 8.53 731 4.16 + SG-8-5 6/21/2018 5.0 3,460 2.94 <0.793 <0.793 <0.511 2.34 16.6 2,480 16.8 + SG-9-5 6/22/2018 5.0 340 <1.07 <0.793 <0.793 <0.511 1.59 3.98 28.9 + Bromodichloromethane=1.91, Chloroform=3.98 SG-10-5 6/22/2018 5.0 14.4 <1.07 <0.793 <0.793 <0.511 <0.639 <0.867 255 <3.07 + SG-11-5 6/22/2018 5.0 1,700 <1.07 <0.793 <0.793 <0.511 1.18 7.10 2,170 54.4 + Methylene Chloride = 1.85 SG-12-5 6/22/2018 5.0 5.29 <1.07 <0.793 <0.793 <0.511 2.67 3.68 402 <3.07 + SG-13-5 6/22/2018 5.0 40.0 <1.07 <0.793 <0.793 <0.511 0.976 7.45 444 21.6 + SG-13-5 6/22/2018 5.0 46.2 <2.14 <1.59 <1.59 <1.02 <1.28 4.79 <413 11.1 + Replicate Sample SG-14-5 6/22/2018 5.0 10.6 <2.14 <1.59 <1.59 <1.02 <1.28 1.83 <413 117 + SG-15-10 6/22/2018 10.0 1.89 <1.07 <0.793 <0.793 <0.511 25.2 8.73 2,060 <3.07 + SG-17-10 6/22/2018 10.0 <1.36 <1.07 <0.793 <0.793 <0.511 1.05 <0.867 285 <3.07 + Shroud 6/22/2018 -- -- -- -- -- -- -- -- -- 219,000 --
8/2/2018 -- -- -- -- -- -- -- -- -- 135,000 --
8/13/2018 -- -- -- -- -- -- -- -- -- 215,000 --
11/28/2018 -- -- -- -- -- -- -- -- -- 150,000 --
Explanation:

PCE = Tetrachloroethene
TCE = Trichloroethene
DCA = Dichloroethane
DCE = Dichloroethene
TCA = Trichloroethane
Other VOCs = Volatile organic compounds by EPA Method TO-15 or EPA Method 8260 (8010 basic target list).

VLP = Various Location Permitted equipment with Bay Area Air Quality Management District µg/m3 = Micrograms per cubic meter of air results calculated by laboratory from parts per billion results using normal pressure and temperature (NPT). ft bgs = feet below ground surface.
< n = Chemical not present above laboratory detection limit. -- = Not analyzed
Bold = Concentrations above ESLs for Commercial Land Use for shallow soil gas (SG samples). + = chemicals detected at relatively low concentrations. See laboratory reports for details.

Shroud Sample Data
ESL = Environmental Screening Level, from California Regional Water Quality Control Board - San Francisco Bay Region, Screening for Environmental Concerns at Sites with Contaminated Soil and Groundwater, Interim Revised February 2016 (Revision 3).

Various Addresses, Pangea, June 2018
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APPENDIX D
Health and Safety Guidelines Fact Sheet
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Community Protection Measures Fact Sheet
Old Train Depot Site
2009 to 2073 Railroad Avenue, Livermore, CA
Spring 2022
________________________________________________________________________________________

Fact Sheet
Spring 2022
On behalf of t he City of Livermore , Eden Housing, Inc. and its contractors will be preparing the former Old Train Depot Site, located at 2009- 2073 Railroad Avenue, for development as part the larger Livermore Downtown Core d evelopment project. Work at the Site includes constructing two buildings with 130 unit s of affordable housing over underground parking.

Community Protection Measures
The San Francisco Regional Water Quality Control Board (Water Board) recently concurred with the finding that the project, as planned, will be protective of future site users. The Water Board also requested preparation of a Site Management Plan (SMP) to ensure protection of human health at the property by establishing procedures and protocols to be followed during construction and post-construction.

The SMP developed by the City of Livermore hel ps ensure that chemicals (e.g., petroleum an d metals) in soil and groundwater from historical site uses and uses at other nearby sites are safely managed and disposed of should they be encountered during site development. The SMP will also include protocols for confirmation testing to demonstrate that volatile organic compounds in soil gas (air in between soil particles) d o not pose a risk to future occupants . While it i s unlikely that groundwater will be encountered during construction, this contingency has been addressed, as well.

This plan has been reviewed and approved by the Water Board and includes procedures for the following:
• Safe handling, management and disposal of contaminated soil or groundwater; • Conducting real-time and perimeter air monitoring during all soil disturbing work; • Controlling dust and odors by using water, foam, and securely covering soil stockpiles; • Limiting vehicle speeds to 15 miles per hour on unpaved roads and minimizing idling times; • Cleaning truck-tires and undercarriages and using rumble strips to prevent track out of soil; • Controlling storm water runoff using various site controls including straw wattles and frequent inspections; • Following a City of Livermore approved truck route when removing soil from the Site; • Using flaggers and traffic signage to safely manage construction-related traffic; and • Installing fencing and signage with a number to call for more information.

Protecting Future Residents
The Water Board has confirmed that the residential buildings are designed to protect the environmental health of future site residents. This will be confirmed through pre-occupancy testing.

If the tests warrant additional evaluation, after verification contingency measures (such as increasing air flow rates in garage ventilation) may be implemented with oversight from the Water Board to ensure protection of human health. Pre- occupancy testing and development of contingency measures before residents move in is a standard best practice in these situations.

For More Information
For more information, please contact Tracy Craig at (510) 334-4866 (24/7) or [email protected].

Information on the proposed development project at the Site is also available at the City of Livermore website:
https://www.cityoflivermore.net/government/community-development/downtown-eden-housing-project.

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APPENDIX E
SFRWQCB Draft Import Fill Material Guidance
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Working Draft
Acceptable for External Sharing
Contacts: Ross Steenson, Keith Roberson

Fill Material Defns Attmt_20220422_ras (002) 1

REGIONAL WATER BOARD FILL MATERIAL DEFINITIONS
Scope of Guidance
The purpose of this document is to provide guidance regarding fill material import for use as fill in upland areas at cleanup sites and closed landfills under regulatory oversight by the Regional Water Board. This guidance does not apply to wetlands, sensitive environments, jurisdictional waters of the State or US, or areas with the potential presence of special status species/habitats without permits or additional considerations—even clean import fill material should not be placed in these types of environments without appropriate permits. For placement of fill material in aquatic environments, Regional Water Board’s Watershed Division staff should be consulted during initial planning prior to placement. The criteria for placement in aquatic environments likely will be different from upland placement. Potentially applicable criteria are in Staff Report – Beneficial Reuse of Dredged Materials: Sediment Screening and Testing Guidelines (Regional Water Board 2000).

Clean Import Soil
Clean import soil consists of natural materials (e.g., topsoil, clay, silt, sand, gravel, rock, or a mixture or combination of such materials) that have concentrations of naturally occurring chemicals (e.g., metals) at or below the native background soil concentrations at the receiving site while concentrations of manmade chemicals are absent (e.g., not detected at reasonable laboratory detection limits). Clean soil is also free of trash, debris, and construction material. Clean import soil does not include coal or other carbonaceous material. Clean import soil is suitable for unrestricted use at cleanup sites and closed landfills considering the scope of this guidance.

Acceptable Import Soil
The Regional Water Board recognizes that, in the Bay Area, it can be challenging to locate sources of import soil that meet the definition of “clean” due to manmade influences (e.g., aerial deposition of incomplete combustion of fuels from automobiles, agricultural pesticide applications). Therefore, the term “acceptable” has been developed to describe soil that has value for use as fill material and is not a waste. The levels of chemicals in acceptable soil affect how and where that soil can be used or placed. Acceptable soil quality spans a range from clean soil and soil with trace levels of chemicals suitable for placement with limited or no restrictions to marginally contaminated soil suitable for specifically defined uses where exposure pathways and ATTACHMENT 5
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environmental concerns are mitigated by institutional controls (e.g., soil management plan, deed restriction), defined placement (e.g., beneath hardscape buildings, away from buildings), and/or engineering controls (e.g., cover, engineered cap). The general characteristics of acceptable soil are described below along with two categories of acceptable soil.
 General Characteristics – Natural materials (e.g., soil, clay, silt, sand, gravel, rock, or a mixture or combination of such materials) free of contaminants that would classify it as a waste, visible signs of trash, debris, staining, liquids, or construction material.
 Exposure Pathways and Environmental Concerns – An import soil quality evaluation should be conducted that identifies relevant exposure pathways (e.g., human health direct exposure) or concerns (e.g., nuisance) and discusses whether a risk or threat is posed, respectively. Such evaluations typically consist of qualitative discussions, comparison to screening levels, other testing or mitigation measures/controls. The following is a list of potentially relevant exposure pathways and concerns that should be evaluated when developing and import fill plan. The list below additionally indicates whether the Soil Environmental Screening Levels (ESLs; Regional Water Board 2019a, b, c) could be used to evaluate fill import soil:
o Human health direct exposure (ingestion, inhalation, dermal contact) – Can be evaluated using the Soil Direct Exposure Human Health Risk ESLs o Ecological receptor direct exposure (ingestion, inhalation, dermal contact) – Can be evaluated using the Soil Terrestrial Habitat ESLs. o Nuisance – Can be evaluated using the Soil Odor Nuisance ESLs o Gross Contamination – Can be evaluated using the Soil Gross Contamination ESLs
o Chemical migration to a receptor or water body with beneficial uses for the following:
 Leaching/erosion into surface water – Cannot be evaluated using the Soil ESLs. It is commonly addressed by use of best management practices and/or placement beneath cover materials.
 Leaching/erosion into groundwater – Can be evaluated using the Soil Leaching to Groundwater ESLs for drinking water or non-drinking water exposures (i.e., ecological concerns, groundwater discharge to surface water). In some cases, the target groundwater pathways used in the ATTACHMENT 5
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calculation of the Leaching to Groundwater ESLs can be modified (e.g., if the soil is to be placed in an area with where there will be no enclosed structures, the values could be manually re-calculated to remove the Groundwater Vapor Intrusion Human Health Risk Levels). For metals for leaching and subsequent drinking water exposure, the USEPA Resident Soil to Groundwater RSLs can be used. An example alternative approach to the use of screening levels is leaching tests (e.g., Waste Extraction Test with deionized water).
 Vapor intrusion into buildings – Cannot be evaluated using the Soil ESLs.

It is typically addressed by evaluation of the import source property, review of any available soil gas data for that property, and either lack of detections or detections below the residential soil ESLs. It can also be addressed by in-situ soil gas sampling at the import source property. Soil containing volatile chemicals generally should not be placed beneath or close to buildings.
 Soil Quality and Use Categories – There are two categories of acceptable soil, Category 1 and Category 2.
o Category 1 (Surface Placement)
 Average concentrations (e.g., 95% upper confidence limit of the mean or 95UCL) of naturally occurring chemicals (e.g., metals) do not exceed regional background levels. Regional Water Board recommended regional background levels for metals except for arsenic are from Lawrence Berkeley National Laboratory (2002). For arsenic, the recommended regional background level of 11 milligrams per kilogram is from Duverge (2011).
 Average concentrations of manmade chemicals (except petroleum-motor oil) do not exceed Tier 1 ESLs.
 Average concentrations of petroleum-motor oil do not exceed 500 mg/kg.

The petroleum-motor oil value of 500 mg/kg is used instead of the Tier 1 ESL because: (1) the Tier 1 ESL is based on gross contamination (i.e., significantly contaminated); (2) total petroleum hydrocarbon oil range detections can result from oils picked up during handling or interferences to the analytical method from naturally occurring organic matter; and (3) this value is achievable based on our experience at cleanup sites under our oversight that have imported fill.

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o Category 2 (Subsurface Placement) – Category 2 soil is acceptable provided each pathway/concern listed in “Exposure Pathways and Environmental Concerns” is addressed by one of the following:
 The average concentrations (95UCL) of chemicals present in the soil do not exceed relevant ESLs for the exposure pathway/concern, or  The placement location, institutional controls (e.g., deed restriction, management plan), engineering controls and/or other relevant site conditions may mitigate the exposure pathway/concern. For example, rather than the soil leaching to groundwater pathway being addressed by meeting the leaching ESLs, the pathway is addressed because the import soil will be placed beneath a low-permeability cover that will limit infiltration, stormwater controls will limit runoff to surface water, the import soil placement location is documented, and a deed restriction and risk management plan will be in place. For volatile chemicals and the vapor intrusion pathway, placement beneath buildings actually raises rather than mitigates the level of concern. Placement of soil with detections of volatile chemicals is discouraged or, alternatively, warrants a detailed evaluation of risk.

Unacceptable Import Soil
Material with any of the following characteristics will be deemed unacceptable by the Regional Water Board for import:
 Is a waste considering the following:
o Meets the definition of a hazardous waste (state or federal) – The potential for inadvertent import of hazardous waste can be screened using a value of ten times the soluble limit threshold concentration (STLC) for a given chemical. o Meets the definition of “designated” waste under section 13173 of California Code of Regulations Title 27
o Exceeds the Criteria for Disposal of Contaminated Soils to Unlined Disposal Cells in Waste Discharge Requirements Order No. R2-2020-0023 o Contains free anthropogenic liquids based on visual inspection  Includes trash, debris (e.g., lumber, metal), or animal/human waste  Contains chemicals from human activity at concentrations that present significant threats for relevant ecological and human exposure pathways or concerns.

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Other Considerations
The following may be pertinent when selecting values:
 Lack of ESLs for a Chemical – The hierarchy for choosing screening levels based on availability for a given chemical should be (1) ESLs, (2) DTSC Soil SLs (residential or commercial/industrial, as appropriate), then (3) USEPA RSLs (residential or industrial, as appropriate).
 Laboratory Reporting Limits – Method detection limits and laboratory reporting limits for individual chemicals are not directly considered in development of the ESLs. See ESL User’s Guide Section 12.6.1 for options when the ESLs are below laboratory reporting limits.

References
Duvergé, D.J., 2011. Establishing Background Arsenic in Soil of the Urbanized San Francisco Bay Region. Master’s thesis, San Francisco State University Lawrence Berkeley National Laboratory. 2002 (Revised April 2009). Analysis of Background Distributions of Metals in the Soil at Lawrence Berkeley National Laboratory. Environmental Restoration Program (Prepared by D. Diamond, D.

Baskin, D. Brown, L. Lund, J. Najita and I. Javandel). June.

Regional Water Board. 2000. Draft Staff Report – Beneficial Reuse of Dredged Materials: Sediment Screening and Testing Guidelines – For Planning Purposes Only. California Environmental Protection Agency, Regional Water Board. (Prepared by E. Christian and F. Hetzel). May.

Regional Water Board. 2019a. Environmental Screening Levels (ESLs) Workbook, Revision 2. California Environmental Protection Agency, San Francisco Bay Regional Water Quality Control Board. July 25.

Regional Water Board. 2019b. Frequently Asked Questions (FAQs): Environmental Screening Levels (ESLs), 2019 Update (Revision 1). California Environmental Protection Agency, San Francisco Bay Regional Water Quality Control Board. July

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Regional Water Board. 2019c. User’s Guide. Derivation and Application of Environmental Screening Levels (ESLs), Revision 1. California Environmental Protection Agency, San Francisco Bay Regional Water Quality Control Board. July

25. Regional Water Board. 2020. Waste Discharge Requirements Order No. R2-2020-0023, Amendments to Waste Discharge Requirements for Disposal and Onsite Use of Non-Designated/Non-Hazardous Contaminated Soils and Related Wastes at Active Municipal Solid Waste Landfills. July 9. (link)

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APPENDIX F
SOP – Indoor Air Sampling

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1 SOP - INDOOR AIR SAMPLING
Procedures for collection of indoor air samples shall follow the guidance specified in the Department of Toxic Substances Control’s (DTSC) guidance document “Final Guidance for the Evaluation & Mitigation of Subsurface Vapor Intrusion to Indoor Air” (VIG), October 2011.

Refer to the full VIG document for all requirements; however, a summary is provided below:

Indoor air sampling should be conducted under conservative conditions. Ingress and egress activities within the space being sampled should be minimized. Two events should be performed: first with the Heating, ventilation, and air conditioning (HVAC) systems off, and second with the HVAC system operating normally for the season and time of day. During colder months, heating systems should be operating for at least twenty-four hours prior to the scheduled sampling event to maintain normal indoor temperatures above 65°F before and during sampling.

DTSC recommends the following when conducting indoor air sampling:

1) Sampling Duration. For the first sampling event, indoor air samples should be collected over a 24-hour period to ensure diurnal fluctuations in vapor intrusion and indoor air concentrations are included in the sampling period. After vapor intrusion is confirmed, sampling events should be conducted to produce representative concentrations of the monitored compounds over the anticipated daily exposure period for building occupants. Hence, air samples should be collected over a 24-hour period for residential structures, over an 8-hour period for non-residential structures, and over a typical school day for students. When feasible, 24-hour and 8-hour sampling may be conducted during the same sampling event.

2) Number of Sampling Events. One indoor air sampling event is not representative of continuous long- term exposure within a building. Multiple sampling events should be conducted to characterize exposure over the long-term. Numerous sampling events may be required within a building before DTSC would consider “no further action” for the exposure pathway. At a minimum, sampling data should be obtained over two seasons; late summer/early autumn and late winter/early spring. The data evaluation and contingency plan for the site should guide decisions regarding the objective and number of sampling events.

3) Number of Samples and Locations. All floors of a residential structure potentially subject to vapor intrusion should be sampled for indoor air quality. All occupied areas, as well as basements, should be sampled. Sampling devices should be located in the breathing zone, approximately 3 to 5 feet off the ground for adults. Samples should be collected in the center of the room, away from doors. When sampling an office building, the number and locations of samples should be based on site-specific conditions. In office buildings, samples should be collected from primary work areas and near the points of vapor entry (such as sumps, elevator shafts or floor drains) to help define the potential routes of entry.

4) Sampling Equipment. When sampling indoor air with evacuated canisters, extra canisters, pressure gauges, and flow regulators should be taken into the field in case the integrity of some of the canisters is compromised or if some flow regulators and pressure gauges malfunction. Each sampling canister should have a dedicated vacuum gauge. The gauge is needed to verify the canister is properly evacuated prior to initiation of sampling and to demonstrate that the canister is slightly depressurized upon completion of the sampling. Likewise, the gauge will indicate whether the canister’s flow regulator is functioning properly during sample collection. Flow regulators should be configured to produce a constant sampling rate.

Sampling canisters, along with all flow regulators and pressure gauges, should be certified clean to the laboratory’s method reporting limit.

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2 Indoor Air Sample Collection Procedures:
 For the indoor air sample, identify the sampling location(s) on a floor plan that also identifies locations of HVAC equipment, chemical storage areas, garages, doorways, stairways, sumps, drains, utility perforations, north direction, and separate footing sections. For the ambient air sample, select a location upwind of the building or other area that is being evaluated. If possible, select a location upwind or near the HVAC air intake for the building being sampled.  Use an evacuated Summa® passivated (or equivalent) stainless-steel canister to collect each sample. The canisters will be provided by the laboratory, along with flow controllers equipped with an in-line particulate filter and vacuum gauge. Each flow controller will be pre-calibrated by the laboratory for the desired flow rate or duration of sample collection (in this case, 24 hours).

The sampling flow rate should always be less than 0.2 liter per minute (lpm).  Place the canisters at the sampling locations. Samples should be collected from breathing height (e.g., 3 to 5 feet above ground). Either mount the canister on a stable platform or attach a length of inert tubing to the flow controller inlet and support it such that the sample inlets will be at the proper height. Measures should also be taken to avoid impact by weather events.  Remove the protective brass plug from each canister. Connect the pre-calibrated flow controller to each canister.
 Record the identification numbers for the canisters and flow controllers. Record the initial canister pressures on the vacuum gauge (check equipment-specific instructions for taking this measurement). Canisters with a significantly different pressure than originally recorded by the testing laboratory should not be used for sampling. Record these numbers and values on the chain- of-custody form for each sample.
 Completely open the valve on the vacuum pressure in each canister. Record the time that each valve was opened (beginning of sampling) and the canister pressure on the vacuum gauge.  Photograph each canister and the area surrounding the canisters. Additionally, for the ambient air sample, document on a field form an outdoor plot sketch that indicates the building being sampled, streets, sampling location, location of potential outdoor air sources, north direction and paved areas. Also record pertinent observations, such as, odors, readings from field instrumentation, and significant activities in the vicinity that result in air emissions.  Stop sample collection after the scheduled duration of sample collection (24 hours), but make sure that the canister still has a minimum amount of vacuum remaining. Check with the laboratory supplying the canister and flow controller for the ideal final vacuum pressure. Typically, the minimum vacuum is between 2 and 5 inches of mercury, but not zero. If there is no vacuum remaining, the sample will be rejected and should be collected again in a new canister.  Record the final vacuum pressure and close the canister valves. Record the date and time that sample collection was stopped.
 Remove the flow controller from each canister and replace the protective brass plugs.

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3  Attach labels/tags (sample name, time/date of sampling, etc.) to the canisters as directed by the laboratory.
 Place the canisters and other laboratory-supplied equipment in the packaging provided by the laboratory.
 Enter the information required for each sample on the chain-of-custody form, making sure to include the identification numbers for each canister and flow controller, and the initial and final canister pressures on the vacuum gauge.
 Include the required copies of the chain-of-custody form in the shipping packaging, as directed by the laboratory. The field crew should retain a copy of the chain-of-custody for the project file.  Deliver or ship the samples to the laboratory within one business day of sample collection and via overnight delivery (when shipping). If pressure reading of canister is “zero” when logged in by the laboratory the sample shall not be analyzed and will be recollected Ambient (Outdoor) Air Sample Collection Procedures:

Site-specific ambient (outdoor) air samples should be collected when indoor air sampling is conducted, with the realization that indoor and outdoor air samples will always have detectable concentrations of common air pollutants. When conducting a vapor intrusion assessment, site-specific ambient air data are used to interpret the measured indoor air concentrations, not to adjust the indoor air concentrations for risk assessment purposes.

Ambient air samples should be collected at locations that are not influenced by subsurface contamination.

Therefore, ambient air samplers should be located upwind of subsurface plumes. In addition, information on the types of industry in the neighborhood should be used when selecting ambient sample locations and interpreting the air data. The ambient air data can be used as a qualitative tool to provide information regarding outside influences on indoor air quality.

The following should be considered when collecting ambient air samples:
 Sampling devices should be located approximately six feet off the ground.  Ambient sampling should be conducted concurrent with the indoor air sampling.  Ambient samples should be collected in upwind locations.  Ambient samples should be located away from gasoline stations, automobiles, gasoline powered engines, fuel and oil storage tanks, chemical storage areas, and dry cleaners.  Sampling devices should be placed at least 10 feet beyond a tree’s drip line.  Ambient air samples should be collected on the upwind side of a building at a distance equal to twice the height of the building, when feasible.
 Three ambient samples, at a minimum, should be collected with each indoor air sampling event.

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1 RESOLUTION NO. ________

IN THE CITY COUNCIL OF THE CITY OF LIVERMORE, CALIFORNIA A RESOLUTION RESCINDING RESOLUTION NO. 2026-125 AND

AUTHORIZING A SUPPLEMENTAL APPROPRIATION OF LOW-
INCOME HOUSING FUNDS (FUND 200) IN THE AMOUNT OF $75,000; AUTHORIZING A BUDGET REDUCTION OF $75,000 FROM THE
HUMAN SERVICES FACILITY FEES FUND (FUND 290); AWARDING A CONTRACT TO BAY CITIES PAVING & GRADING, INC. FOR THE
LIVERMORE VILLAGE REMEDIATION PROJECT DR202118, IN THE
AMOUNT OF $2,285,985; FINDING THE PROJECT EXEMPT FROM

THE CALIFORNIA ENVIRONMENTAL QUALITY ACT (CEQA)
PURSUANT TO GOVERNMENT CODE SECTION 65457 AND CEQA
GUIDELINES SECTION 15182(c) AND WITHIN THE SCOPE OF THE 2004 SPECIFIC PLAN EIR, THE 2009 SUBSEQUENT EIR AND

ADDENDA IN ACCORDANCE WITH PUBLIC RESOURCES CODE
SECTION 21166 AND CEQA GUIDELINES SECTION 15162
The City of Livermore advertised and received bid proposals for the construction of the Livermore Village Remediation Project DR202118. Bay Cities Paving & Grading, Inc. (Bay Cities) submitted the lowest responsible and responsive B ase Bid Proposal in the amount of $932,235 that is acceptable to the City of Livermore.

A timely bid protest was received from Goodfellow Bros. California, LLC, the second lowest bidder, claiming that the bid proposal from Bay Cities Paving & Grading, Inc. w as non -responsive. After detailed review by staff in coordination with the City Attorney's Office, City staff ultimately determined that Bay Cities Paving & Grading, Inc.’s bid proposal is responsive.

Livermore Municipal Code section 2.68.570(C) requires that the award of contracts subject to formal bidding be awarded to the lowest responsive and responsible bidder. The bid submitted by Bay Cities Paving & Grading, Inc., meets this requirement and therefore, at the July 27, 2026, City Council Meeting, City staff recommended the City Council approve the award of a construction contract with Bay Cities Paving & Grading in the amount of $2,285,985 for Project DR202118.

On July 27, 2026, City Council adopted Resolution No. 2026-125 awarding and authorizing the City Manager to execute a construction contract with Bay Cities, the lowest responsible and responsive bidder, in an amount of $2,285,985 and authorizing a supplemental appropriation in the amount of $75,000 from the Low -Income Housing Fund (Fund 200) to replace Human Services Facility Fees (Fund 290).

On August 3, 2026, the City received a Ralph M. Brown Act Demand to Cure and Correct Under Government Code section 54960.1, related to the noticing of the July 27, 2026, Agenda Item No. 6.8, the Livermore Vi llage Remediation Project DR202118. The Demand alleged that the City violated the Brown Act, because the noticing did not identify the City’s proposed pathway for complying with CEQA along with the 288
2 RESOLUTION NO. ________
substantive actions the City Council was considering. Although the City maintains that the noticing for the agenda item was in substantial compliance with the Brown Act , for the avoidance of doubt and to promote transparency in the public process, staff revised the agenda description and recommend the City Council reconsider the item. To avoid confusion regarding the operative date of the construction contract, staff recommends the City Council rescind Resolution No. 2026-125.

The Base Bid scope of work involves removal of soil to a depth of two (2) feet below groun d surface. Bid Alternate 2 includes additional excavation to extend the depth of soil removal by three (3) feet to a total of five (5) feet below ground surface, with associated off haul, backfill, and compaction. Bay Cities submitted a Base Bid amount o f $932,235 with the Bid Alternate 2 work totaling $1,353,750. City Staff recommends re-awarding a contract totaling $2,285,985 for the Base Bid and Bid Alternate 2 to Bay Cities Paving & Grading, Inc. for the construction of the Livermore Village Remediation Project DR202118, which is necessary for the implementation of the Downtown Workforce Housing Project, and adding Bid Alternate 2 to the contract.

Given the uncertainty associated with underground conditions concerning this project, and the potential fo r encountering contaminated materials, a cumulative Change Order authorization of 10% is recommended.

Additionally, City staff recommends the City Council reauthorize a supplemental appropriation in the amount of $75,000 from the Low -Income Housing Fund (Fund 200) to replace Human Services Facility Fees (Fund 290).

NOW THEREFORE BE IT RESOLVED by the City Council of the City of Livermore that, based upon the City Council’s own independent review and considerations, the City Council has determined that the p roposed construction contract with Bay Cities is statutorily exempt from review under Government Code section 65457 and CEQA Guidelines 15182(c) and none of the events described in CEQA Guidelines section 15162 have occurred.

1. Findings. The Downtown Specific Plan was initially adopted and its EIR was certified in 2004, with a Downtown Specific Plan Amendment adopted and a subsequent EIR certified in 2009. The City adopted three addenda to the subsequent EIR in March 2019, August 25, 2020, and August 27, 2020 , respectively (the original EIR, subsequent EIR, and addenda are collectively referred to as the “EIR”). The Downtown Specific Plan designates the project site for the Downtown Workforce Housing Project, which includes 130 multifamily and the 2 -acre park kn own as Veterans Park. The City approved project-specific entitlements for the Downtown Workforce Housing Project on May 25, 2021, finding that the Project was exempt from further CEQA review because it is a residential project consistent with a Specific Plan for which an EIR was certified, and that none of the circumstances requiring further CEQA review had occurred. The current action regarding the soil excavation contract is a subsequent approval necessary to implement the Downtown Workforce Housing Proje ct, and the excavation activities were contemplated in the 289
3 RESOLUTION NO. ________
certified SEIR and MMRP. The City worked closely with the San Francisco Regional Water Quality Control Board to implement site cleanup consistent with the MMRP, which resulted in a Site Management Plan dated July 1, 2022 (“SMP”). The SMP includes, among other things, the construction of two multi-story, multi -family residential buildings over underground parking structures and offsite soil disposal. The SMP further acknowledges that the work will di sturb the upper approximate 20 ft of soil under Building A (North building), the upper 9 ft of soil under Building B (South building) and the upper 2 ft of soil in the remaining project area. These actions implement the SEIR’s MMRP and were anticipated i n connection with the City’s original approval of the Downtown Workforce Housing Project. As explained further below, therefore the approval of the soil excavation contract is not new information, change in circumstances, or a change in the project, and therefore the actions remain exempt from CEQA without the need for subsequent review under Government Code section 65457 and CEQA Guidelines section 15182(c).

2. Findings. No substantial changes are proposed which would require major revisions to the previous EIR, subsequent EIR, or addenda. The proposed work is for the soil excavation previously required under the MMRP adopted with the certified 2009 Subsequent Downtown Specific Plan EIR (SCH:
2008092085) and subsequently described in the SMP approved by the San Francisco Bay Area Regional Water Quality Control Board. Substantial changes in circumstances have not occurred requiring major revisions to the previous EIR, subsequent EIR or addenda as the excavation work is entirely consistent with the SMP. There is no new information of substantial importance that would result in new impacts not previously discussed, result in more severe impacts, or require modifications to the existing mitigation measures. For these reasons, no events described in CEQA section 15162 have occurred and therefore no further environmental review is required.

BE IT FURTHER RESOLVED , that the proposed work is entirely within the scope of the Specific Plan EIR, dated February 9, 2004 (SCH No.: 2003032038), the Specific Plan Subsequent EIR, dated March 30, 2009 (SCH No.: 2008092085), and the Specific Plan Subsequent EIR Addenda adopted by City Council on September 10, 2018, by Resolution 2018-153, May 13, 2019 by Resolution 2019 -064, and October 26, 2020 by Resolution 2020 -178. The environmental effects of the project were previously evaluated in the certified 2009 Subsequent Downtown Specific Plan EIR (SCH:
2008092085) and addenda in compliance with the adopted Mitigation Monitoring and Reporting Program (MMRP) and as set forth in the SMP approved by the San Francisco Bay Area Regional Water Quality Control Board. Since adoption of the Subsequent EIR and addenda , there have been no substantial changes in the project or in the circumstances under which the project is being undertaken which wo uld require changes in the Subsequent EIR and addenda, nor has any significant new information become available which would require changes in the Subsequent EIR and addenda.

Pursuant to Public Resources Code section 21166 and CEQA Guidelines section 15162, no further environmental review is required.
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The record of project approval is available to the General Public at: City of Livermore, 1052 South Livermore Avenue, Livermore, CA 94550.

BE IT FURTHER RESOLVED by the City Council of the City of Livermore, that it hereby:

1. Rescinds Resolution No. 2026-125 in its entirety;

2. Authorizes a supplemental appropriation of $75,000 from the Low -Income Housing Fund (Fund 200) to the budget for the Livermore Village Remediation Project DR202118;

3. Authorizes a budget reduction of $75,000 from the Human Services Facility Fees (Fund 290) to the budget for the Livermore Village Remediation Project DR202118;

4. Awards and authorizes the City Manager to execute a construction contract with Bay Cities Paving & Grading, Inc, attached hereto as Exhibit A and incorporated by this reference, in the amount of $2,285,985, for construction of the Livermore Village Remediation Project DR202118, pursuant to Livermore Municipal Code section 2.68.570 (C);

5. Rejects all other bids or proposals;

6. Authorizes the City Manager to approve and execute change orders up to a cumulative amount of ten percent of the construction contract value of $2,285,985; and

7. Authorizes the City Manager to take whatever actions are necessary and appropriate to carry out the purpose and intent of this resolution.

On motion of Council Member ______________________, seconded by Council Member ______________________, the foregoing resolution was passed and adopted on August 20, 2026, by the following vote:

AYES:

NOES:

ABSENT:

ABSTAIN:

ATTEST: APPROVED AS TO FORM:
/s/ Kimberly D. Cilley
Helena Graves Kimberly D. Cilley
Acting City Clerk City Attorney

Exhibit A – Bay Cities Paving & Grading, Inc. Contract
291

CONTRACT
This public works contract ("Contract") is entered into by and between the City of Livermore, a California Municipal Corporation ("City") and Bay Cities Paving & Grading, Inc., a California corporation ("Contractor") for Work on the Livermore Village Remediation, Project No. DR202118 ("Project").

The Parties Agree as FoUows:

1. Award of Contract.

In response to the Notice Inviting Bids, Contractor has submitted a Bid Proposal to perform Work on the Project, and on , 20_, as part of Resolution No. _ _ _____ _ , City authorized award of this Contract to Contractor for the amount of Contractor's bid.

2. Contract Documents .

This Contract consists of all of the written representations and submissions made by Contractor as part of the Bid process and the following numbered and un-numbered component documents , as detailed on the table of contents of this Contract:
a. Bidding requirements (consisting of the Notice Inviting Bids; Instructions to Bidders; Bid Proposal; Bid Schedule, Subcontractor List, Noncollusion Declaration, Bid Bond, Bidder's Questionnaire, Payment Bond, Performance Bond, Warranty Bond);
b. General Conditions;
C. Special Conditions;
d. Division One Technical Specifications ;
e. Appendix ;
f. Index of Defined Terms;
g. Project Drawings and Specifications;
h. Bid Addenda, if any;
i. Change Orders, if any;
j. ALB Notice;
k. Notice to Proceed;
I. City Standard Specifications and Details;
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m. And the following : No other documents.

3. Contractor's Obligations.

Contractor agrees to perform all of the Work required for the Project, as specified in the Contract Documents. Contractor must provide, furnish, and supply all things necessary and incidental for the timely performance and completion of the Work , including all necessary labor, materials , equipment, transportation , and utilities, unless otherwise specified in the Contract Documents. Contractor must use its best efforts to complete the Work in a professional and expeditious manner and to meet or exceed the performance standards required by the Contract Documents.

4. Payment.

As full and complete compensation for Contractor's timely performance and completion of the Work in strict accordance with the terms and conditions of the Contract Documents, City will pay Contractor two million two-hundred and eighty-five thousand nine-hundred and eighty-five Dollars ($2,285,985.00) (the "Contract Price"), in accordance with the payment provisions in the General Conditions .

The Contract Price includes the following amounts as itemized in the Contractor's executed Bid Schedule and Bid Proposal:
• Base Bid
• Add Alternate #2: Additional Excavation - Sitewide

5. Time for Completion.

5.1. Substantial Completion.

Contractor must achieve Substantial Completion , as that term is defined in the General Conditions , of the Project Work within eighty (80) Working Days from the commencement date stated in the Notice to Proceed. ("Substantial Completion Deadline."). For this project, the Contractor shall also incorporate five (5) inclement Weather Days into their bid estimate. Contractor shall be solely responsible for the extended overhead and profit for these weather days and shall not be compensated by the City in any way, reference Section 10.3 of the General Conditions and Section 013200-4.3 Contract Schedules for additional weather day information .

5.2. Final Completion.

Contractor must achieve Final Completion , as that term is defined in the General Conditions , of the Project Work within twenty (20) Working Days after the date of substantial completion . ("Final Completion Deadline.")

5.3. Early Completion.

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By signing below, Contractor expressly waives any claim for delayed early completion.

6. Liquidated Damages.

If Contractor fails to meet either the Substantial Completion Deadline or the Final Completion Deadline, City may assess liquidated damages according the provisions in the General Conditions of the Contract Documents in the following amounts for each day of Unexcused Delay, and the Contract Price shall be reduced accordingly .

6.1 . Substantial Completion Deadline: one thousand five hundred dollars ($1 ,500) per day.

6.2. Final Completion Deadline: one thousand one hundred dollars ($1 ,100) per day.

7. Labor Code Compliance.

This Contract is subject to all applicable requirements of Chapter 1 of Part 7 of Division 2 of the California Labor Code, including requirements pertaining to wages, working hours and workers' compensation insurance.

7.1. Prevailing Wages.

This Project is subject to the prevailing wage requirements applicable to the locality in which the Work is to be performed for each craft, classification or type of worker needed to perform the Work, including employer payments for health and welfare , pension, vacation, apprenticeship and similar purposes. The general prevailing wage rates for each craft, classification or type of covered work are available online at http://www.dir.ca.gov/DLSR.
7 .2. DIR Registration.

City will not accept a Bid Proposal from or enter into the Contract with a bidder without proof that the bidder and its Subcontractors are registered with the California Department of Industrial Relations to perform public work under Labor Code, Section 1725.5, subject to limited legal exceptions allowed by the Labor Code.

8. Workers' Compensation Certification.

Under Labor Code, Section 1861, by signing this Contract, Contractor certifies as follows:
"I am aware of the provisions of Labor Code, Section 3700 which require every employer to be insured against liability for workers' compensation or to undertake self-insurance in accordance with the provisions of that code, and I will comply with such provisions before commencing the performance of the Work on this Contract." The successful bidder previous to the entering of the contract to do the said work shall take out and maintain in full force and effect worker's compensation insurance with an insurance carrier authorized to transact business in the State of California, covering the bidder's full liability for compensation to any persons employed who may be injured in the Livermore Contract Documents , page 42
Contract

EXHIBIT A
3 of 6
294
carrying out of said contract or the dependents thereof. Evidence of such worker's compensation insurance shall be furnished to the City of Livermore by certificate and waiver of subrogation in the City's electronic insurance certificate tracking system (PINS) prior to the commencement of the work and said certificate shall contain a provision that the coverage thereunder will not be canceled until at least thirty (30) days prior written notice has been given to the City.

9. Notice.

Any notice, billing , or payment required by the Contract Documents must be made in writing , and sent to the other party by personal delivery , U.S. Mail, a reliable overnight delivery service, facsimile , or by email as a PDF (or comparable) file. Notice is deemed effective upon delivery unless otherwise specified . Notice for each party must be given as follows :
c ·t ltY C t t on rac or
Name City of Livermore Bay Cities Paving & Grading , Inc.

Community Development Dept
Engineering Division
Address 1052 South Livermore Avenue P.O. Box 6227
City/state/zip Livermore , CA 94550 Concord , CA 94524
Phone (925) 960-4500 (925) 687-6666
Fax (925) 960-4505
Attention City Engineer Vice President
· Email [email protected]
Copy to Li-Teck Lau
[email protected] --------- · -- ·-- -· -- -·-·------------·------- -·-

10. General Provisions.

The following items are repeated here as stated as part of Part 2, General Conditions , for emphasis :

10.1. Assignment and Successors.

Contractor may not assign its rights or obligations under this Contract , in part or in whole , without City's written consent. This Contract is binding on Contractor 's successors and permitted assigns. A consolidation or merger of Contrac tor or a change in ownership of twenty-five percent (25%) or more of Contractor's capital stock constitutes an assignment by Contractor requiring the City's written consent.

10.2. Third Party Beneficiaries.

There are no intended third party beneficiaries to this Contract except as expressly provided in the General Conditions or Special Conditions .

10.3. Governing Law and Venue.

Livermore Contract Documents , page 43
Contract

EXHIBIT A
4 of 6
295
This Contract will be governed by California law and venue will be in the Superior Court of the County in which the Project is located, and no other place.

10.4. Amendment.

No amendment or modification of this Contract will be binding unless it is in a writing duly authorized and signed by the parties to this Contract.

10.5. Integration; Severability.

This Contract and the Contract Documents incorporated herein, including authorized amendments or Change Orders thereto , constitute the final, complete , and exclusive terms of the agreement between City and Contractor . If any provision of the Contract Documents , or portion of a provision , is determined to be illegal, invalid, or unenforceable , the remaining provisions of the Contract Documents will remain in full force and effect.

Livermore Contract Documents , page 44
Contract

EXHIBIT A
5 of 6
296

11. Authorization.

Each individual signing below warrants that he or she is authorized to do so by the party that he or she represents , and that this Contract is legally binding on that party. If Contractor is a corporation , signatures from two officers of the corporation are required under California Corporation Code, Section 313.

The parties agree to this Contract as witnessed by the signatures below:

CITY
City of Livermore, a California
Municipal Corporation
sf - ------------
Marianna Burch, City Manager
Date: ------------
Approved as to form:

City of Livermore City Attorney

CONTRACTOR
Name: ~
Title: 'Se,p(,t,,,+M>{ J, re.A,$ •
Date: 8/ \C) / 1]:jUg
Contractor' s Calif. License Number(s)
Seal:

Expiration Date(s)

END OF DOCUMENT
Livermore Contract Documents , page 45
Contract

EXHIBIT A
6 of 6
297
Award Construction
Contract to Bay Cities
Paving & Grading for
City CIP No. DR202118
August 20, 2026
•Ju ATTACHMENT 8
1 OF 5
298
Project Description – CIP DR202118• One of three
Water Board Sites
Downtown
• Soil Removal to
Facilitate Park and
Housing
Construction
• Work Performed
in Compliance
with Water Board-
Approved Site
Management Plan
• Project Funded by
Department of
Toxic Substances
Control Equitable
Community
Revitalization
Grant
Major Activities:
• Perimeter Fence
• Remove Paving
and Utilities
• Excavate and
Direct-Load Soil
for Disposal at a
Class 2 Landfill
• Import and
Backfill with Clean
Water Board-
Approved Fill
Soil
Removal
Limits
ATTACHMENT 8
2 OF 5
299
Project Timeline
Jul 2022
•Site
• Management
•Plan
•Approved
Aug 2023
•DTSC
•Grant
•Term
•Begins
Dec 2025
•L Street
•Garage
•Complete
6/3/26 to
6/24/26
•Project
•Advertised
•and
•Bids
•Opened
7/27/26
•Project
•Awarded
7/31/26
•NOD
•and
•NOE
•Filed
8/3/26
•Brown Act
•Demand to
•Cure and
•Correct
•Received
Today
•Rescind
•and
•Readopt
•Recommended
Aug 2026
To
January 2027
•Soil
•Removal
Feb 2027
•DTSC
•Grant
•Term
•Ends
ATTACHMENT 8
3 OF 5
300
Project Benefits
Elevated lead concentrations. Lead, arsenic, and nickel exceed screening levels Possible public (park) and routine maintenance/construction worker exposure (landscaping & utilities)
Arsenic and nickel exceed screening levels
Possible routine maintenance/construction worker exposure (utilities)
Future work in this zone anticipated to be infrequent.

Shoring required for earthwork
Soil data indicate Class 2 landfill disposal due to heavy metals would not be required
Follow SMP procedures as needed at time of soil disturbance 0 to 2 feet
2 to 5 feet
More than
5 feet
• In general,
excavation in the
downtown area
shows elevated
heavy metals in
shallow soil.
• Excavation to a
depth of two feet
has required
Class2 landfill
disposal.
• Excavation to a
depth of five feet
will reduce
possible
exposure.

ATTACHMENT 8
4 OF 5
301
Recommended Action
•Rescind Resolution No. 2026-125;
•Adopt California Environmental Quality Act (CEQA) findings; •Authorize supplemental appropriation and budget reduction; •Award construction contract with Bay Cities Paving &
Grading, Inc.;
•Reject all other bids or proposals;
•Authorize ten percent (10%) change order allowance; and •Authorize the City Manager to take whatever actions are necessary and appropriate to carry out the purpose and
intent of this resolution.

ATTACHMENT 8
5 OF 5
302

CITY COUNCIL STAFF REPORT
ITEM NO. 5.2

3.1 Adopt a Resolution Appointing John Marchand to the Office of Mayor and Evan Branning to the Office of City Council Member, District 1 and Cancelling the November 3, 2026, Election for the uncontested seats in accordance with Elections Code Section 10229.

Material: PowerPoint Presentation

3.2 A resolution rescinding Resolution No. 2026-125 and authorizing a supplemental appropriation of Low-Income Housing Funds (Fund 200) in the amount of $75,000; authorizing a budget reduction of $75,000 from the Human Services Facility Fees (Fund 290) to replace Human Services Facility Fees; awarding a construction contract to Bay Cities Paving & Grading, Inc., in the amount of $2,285,985 for the Livermore Village Remediation Project DR202118.

Material: Revised Resolution, PowerPoint Presentation, Public Comment

DATE:

August 20, 2026
TO:

Honorable Mayor and City Council
FROM:

Marianna A. Burch, City Manager
SUBJECT:

Supplemental materials received prior to the meeting.

RECOMMENDED ACTION

SUMMARY
These materials were posted online and made available to the public at the same time that they were distributed to the City Council.

DISCUSSION

ATTACHMENTS

303

1. Supplemental Materials

Prepared by: Olivia Nashed
City Clerk

Approved by:
____________________________________
Marianna A. Burch
City Manager
Fiscal Review by:
____________________________________
Kristen Hilton
Acting Administrative Services Director
304
1 v
Appointment of Candidates and
Cancellation of Election – Mayor & District 1
August 20, 2026
Presented by: Olivia Nashed, City Clerk,
City Manager’s Office
Background
• The City of Livermore has three seats up for
election for the November 3, 2026 General
Municipal Election:

1. Mayor

2. District 1

3. District 2
• The nomination period was July 13 – August 7,
2026.
• All incumbents filed for their respective seat;
therefore, no extension was applicable.
1 2
Item 3.1
PowerPoint Presentation
305
2 Qualified Candidates
At the close of nomination period, the following
candidates qualified to be on the November 3, 2026
ballot:

1. Mayor – John Marchand

2. District 1 – Evan Branning

3. District 2 – Ben Barrientos
Narayan Tadimeti
Appointment and Cancellation of
Election
As there was only one candidate qualified for the
Mayoral race and one candidate qualified for the District 1 seat, pursuant to Elections Code Section 10229, the
City Council can take one of the following actions:

1. Appoint to the office the persons nominated – John
Marchand for Mayor and Evan Branning for District 1

2. Hold the election
If the City Council takes action per Option 1, the Mayoral and District 1 uncontested elections will be cancelled. 3 4
Item 3.1
PowerPoint Presentation
306
3 Financial Impacts
Based on 2024 General Election costs, staff
anticipates savings of at least $250,000 if the City
Council elects to appoint the qualified candidates
and cancel the Mayor and District 1 race in 2026.

Staff Recommendation
Due to the significant cost savings, reduction of City and Alameda County Registrar of Voters staff time and
operational efficiency, staff recommends that Council:

1. Appoint John Marchand to the office of Mayor for a
2-year term.

2. Appoint Evan Branning to the office of Council
Member, District 1 for a 4-year term.

3. Cancel the uncontested November 3, 2026, General
Municipal Elections for Mayor and District 1 seats.
5 6
Item 3.1
PowerPoint Presentation
307

INTEROFFICE MEMORANDUM
Date: August 20, 2026
To
: Honorable Mayor and City Council
F
rom: Kimberly Cilley
City Attorney
S
ubject: Item #3.2 – Bay Cities Paving & Grading Contract P
lease see the revised Resolution for the above-referenced item which includes the corrected dates for the adoption of the Addenda by the City Council.

TACHMENTS

3. 2 Supplemental Resolution – Redline

3.2 Supplemental Resolution – Final
Item 3.2
Supplemental Resolution
308
1 RESOLUTION NO. ________

IN THE CITY COUNCIL OF THE CITY OF LIVERMORE, CALIFORNIA A RESOLUTION RESCINDING RESOLUTION NO. 2026-125 AND

ADDENDA IN ACCORDANCE WITH PUBLIC RESOURCES CODE
SECTION 21166 AND CEQA GUIDELINES SECTION 15162
The City of Livermore advertised and received bid proposals for the construction of the Livermore Village Remediation Project DR202118. Bay Cities Paving & Grading, Inc. (Bay Cities) submitted the lowest responsible and responsive Base Bid Proposal in the amount of $932,235 that is acceptable to the City of Livermore.

A timely bid protest was received from Goodfellow Bros. California, LLC, the second lowest bidder, claiming that the bid proposal from Bay Cities Paving & Grading, Inc. was non-responsive. After detailed review by staff in coordination with the City Attorney's Office, City staff ultimately determined that Bay Cities Paving & Grading, Inc.’s bid proposal is responsive.

On July 27, 2026, City Council adopted Resolution No. 2026-125 awarding and authorizing the City Manager to execute a construction contract with Bay Cities, the lowest responsible and responsive bidder, in an amount of $2,285,985 and authorizing a supplemental appropriation in the amount of $75,000 from the Low-Income Housing Fund (Fund 200) to replace Human Services Facility Fees (Fund 290).

On August 3, 2026, the City received a Ralph M. Brown Act Demand to Cure and Correct Under Government Code section 54960.1, related to the noticing of the July 27, 2026, Agenda Item No. 6.8, the Livermore Village Remediation Project DR202118. The Demand alleged that the City violated the Brown Act, because the noticing did not identify the City’s proposed pathway for complying with CEQA along with the Item 3.2
Supplemental Resolution - Redline
309
2 RESOLUTION NO. ________
substantive actions the City Council was considering. Although the City maintains that the noticing for the agenda item was in substantial compliance with the Brown Act, for the avoidance of doubt and to promote transparency in the public process, staff revised the agenda description and recommend the City Council reconsider the item. To avoid confusion regarding the operative date of the construction contract, staff recommends the City Council rescind Resolution No. 2026-125.

The Base Bid scope of work involves removal of soil to a depth of two (2) feet below ground surface. Bid Alternate 2 includes additional excavation to extend the depth of soil removal by three (3) feet to a total of five (5) feet below ground surface, with associated off haul, backfill, and compaction. Bay Cities submitted a Base Bid amount of $932,235 with the Bid Alternate 2 work totaling $1,353,750. City Staff recommends re-awarding a contract totaling $2,285,985 for the Base Bid and Bid Alternate 2 to Bay Cities Paving & Grading, Inc. for the construction of the Livermore Village Remediation Project DR202118, which is necessary for the implementation of the Downtown Workforce Housing Project, and adding Bid Alternate 2 to the contract.

Given the uncertainty associated with underground conditions concerning this project, and the potential for encountering contaminated materials, a cumulative Change Order authorization of 10% is recommended.

Additionally, City staff recommends the City Council reauthorize a supplemental appropriation in the amount of $75,000 from the Low-Income Housing Fund (Fund 200) to replace Human Services Facility Fees (Fund 290).

NOW THEREFORE BE IT RESOLVED by the City Council of the City of Livermore that, based upon the City Council’s own independent review and considerations, the City Council has determined that the proposed construction contract with Bay Cities is statutorily exempt from review under Government Code section 65457 and CEQA Guidelines 15182(c) and none of the events described in CEQA Guidelines section 15162 have occurred.

1. Findings. The Downtown Specific Plan was initially adopted and its EIR was certified in 2004, with a Downtown Specific Plan Amendment adopted and a subsequent EIR certified in 2009. The City adopted three addenda to the subsequent EIR in September 2018, May 2019, and October 2020March 2019, August 25, 2020, and August 27, 2020 , respectively (the original EIR, subsequent EIR, and addenda are collectively referred to as the “EIR”). The Downtown Specific Plan designates the project site for the Downtown Workforce Housing Project, which includes 130 multifamily and the 2-acre park known as Veterans Park. The City approved project-specific entitlements for the Downtown Workforce Housing Project on May 25, 2021, finding that the Project was exempt from further CEQA review because it is a residential project consistent with a Specific Plan for which an EIR was certified, and that none of the circumstances requiring further CEQA review had occurred. The current action regarding the soil excavation contract is a subsequent approval necessary to implement the Downtown Workforce Housing Project, and the Item 3.2
Supplemental Resolution - Redline
310
3 RESOLUTION NO. ________
excavation activities were contemplated in the certified SEIR and MMRP. The City worked closely with the San Francisco Regional Water Quality Control Board to implement site cleanup consistent with the MMRP, which resulted in a Site Management Plan dated July 1, 2022 (“SMP”). The SMP includes, among other things, the construction of two multi-story, multi-family residential buildings over underground parking structures and offsite soil disposal. The SMP further acknowledges that the work will disturb the upper approximate 20 ft of soil under Building A (North building), the upper 9 ft of soil under Building B (South building) and the upper 2 ft of soil in the remaining project area. These actions implement the SEIR’s MMRP and were anticipated in connection with the City’s original approval of the Downtown Workforce Housing Project. As explained further below, therefore the approval of the soil excavation contract is not new information, change in circumstances, or a change in the project, and therefore the actions remain exempt from CEQA without the need for subsequent review under Government Code section 65457 and CEQA Guidelines section 15182(c).

BE IT FURTHER RESOLVED , that the proposed work is entirely within the scope of the Specific Plan EIR, dated February 9, 2004 (SCH No.: 2003032038), the Specific Plan Subsequent EIR, dated March 30, 2009 (SCH No.: 2008092085), and the Specific Plan Subsequent EIR Addenda adopted by City Council on September 10, 2018, by Resolution 2018-153, May 13, 2019 by Resolution 2019-064, and October 26, 2020 by Resolution 2020-178. The environmental effects of the project were previously evaluated in the certified 2009 Subsequent Downtown Specific Plan EIR (SCH:
2008092085) and addenda in compliance with the adopted Mitigation Monitoring and Reporting Program (MMRP) and as set forth in the SMP approved by the San Francisco Bay Area Regional Water Quality Control Board. Since adoption of the Subsequent EIR and addenda, there have been no substantial changes in the project or in the circumstances under which the project is being undertaken which would require changes in the Subsequent EIR and addenda, nor has any significant new information become available which would require changes in the Subsequent EIR and addenda.

Pursuant to Public Resources Code section 21166 and CEQA Guidelines section 15162, no further environmental review is required.

Item 3.2
Supplemental Resolution - Redline
311
4 RESOLUTION NO. ________
The record of project approval is available to the General Public at: City of Livermore, 1052 South Livermore Avenue, Livermore, CA 94550.

BE IT FURTHER RESOLVED by the City Council of the City of Livermore, that it hereby:

1. Rescinds Resolution No. 2026-125 in its entirety;

2. Authorizes a supplemental appropriation of $75,000 from the Low-Income Housing Fund (Fund 200) to the budget for the Livermore Village Remediation Project DR202118;

3. Authorizes a budget reduction of $75,000 from the Human Services Facility Fees (Fund 290) to the budget for the Livermore Village Remediation Project DR202118;

5. Rejects all other bids or proposals;

6. Authorizes the City Manager to approve and execute change orders up to a cumulative amount of ten percent of the construction contract value of $2,285,985; and

7. Authorizes the City Manager to take whatever actions are necessary and appropriate to carry out the purpose and intent of this resolution.

On motion of Council Member ______________________, seconded by Council Member ______________________, the foregoing resolution was passed and adopted on August 20, 2026, by the following vote:

AYES:

NOES:

ABSENT:

ABSTAIN:

ATTEST: APPROVED AS TO FORM:
/s/ Kimberly D. Cilley
Helena Graves Kimberly D. Cilley
Acting City Clerk City Attorney

Exhibit A – Bay Cities Paving & Grading, Inc. Contract
Item 3.2
Supplemental Resolution - Redline
312
1 RE SOLUTION NO. ________

IN THE CITY COUNCIL OF THE CITY OF LIVERMORE, CALIFORNIA A RESOLUTION RESCINDING RESOLUTION NO. 2026-125 AND

ADDENDA IN ACCORDANCE WITH PUBLIC RESOURCES CODE
SECTION 21166 AND CEQA GUIDELINES SECTION 15162
The City of Livermore advertised and received bid proposals for the construction of the Livermore Village Remediation Project DR202118. Bay Cities Paving & Grading, Inc. (Bay Cities) submitted the lowest responsible and responsive Base Bid Proposal in the amount of $932,235 that is acceptable to the City of Livermore.

A timely bid protest was received from Goodfellow Bros. California, LLC, the second lowest bidder, claiming that the bid proposal from Bay Cities Paving & Grading, Inc. was non-responsive. After detailed review by staff in coordination with the City Attorney's Office, City staff ultimately determined that Bay Cities Paving & Grading, Inc.’s bid proposal is responsive.

On July 27, 2026, City Council adopted Resolution No. 2026-125 awarding and authorizing the City Manager to execute a construction contract with Bay Cities, the lowest responsible and responsive bidder, in an amount of $2,285,985 and authorizing a supplemental appropriation in the amount of $75,000 from the Low-Income Housing Fund (Fund 200) to replace Human Services Facility Fees (Fund 290).

On August 3, 2026, the City received a Ralph M. Brown Act Demand to Cure and Correct Under Government Code section 54960.1, related to the noticing of the July 27, 2026, Agenda Item No. 6.8, the Livermore Village Remediation Project DR202118. The Demand alleged that the City violated the Brown Act, because the noticing did not identify the City’s proposed pathway for complying with CEQA along with the Item 3.2
Supplemental Resolution - Final
313
2 RESOLUTION NO. ________
substantive actions the City Council was considering. Although the City maintains that the noticing for the agenda item was in substantial compliance with the Brown Act, for the avoidance of doubt and to promote transparency in the public process, staff revised the agenda description and recommend the City Council reconsider the item. To avoid confusion regarding the operative date of the construction contract, staff recommends the City Council rescind Resolution No. 2026-125.

The Base Bid scope of work involves removal of soil to a depth of two (2) feet below ground surface. Bid Alternate 2 includes additional excavation to extend the depth of soil removal by three (3) feet to a total of five (5) feet below ground surface, with associated off haul, backfill, and compaction. Bay Cities submitted a Base Bid amount of $932,235 with the Bid Alternate 2 work totaling $1,353,750. City Staff recommends re-awarding a contract totaling $2,285,985 for the Base Bid and Bid Alternate 2 to Bay Cities Paving & Grading, Inc. for the construction of the Livermore Village Remediation Project DR202118, which is necessary for the implementation of the Downtown Workforce Housing Project, and adding Bid Alternate 2 to the contract.

Given the uncertainty associated with underground conditions concerning this project, and the potential for encountering contaminated materials, a cumulative Change Order authorization of 10% is recommended.

Additionally, City staff recommends the City Council reauthorize a supplemental appropriation in the amount of $75,000 from the Low-Income Housing Fund (Fund 200) to replace Human Services Facility Fees (Fund 290).

NOW THEREFORE BE IT RESOLVED by the City Council of the City of Livermore that, based upon the City Council’s own independent review and considerations, the City Council has determined that the proposed construction contract with Bay Cities is statutorily exempt from review under Government Code section 65457 and CEQA Guidelines 15182(c) and none of the events described in CEQA Guidelines section 15162 have occurred.

1. Findings. The Downtown Specific Plan was initially adopted and its EIR was certified in 2004, with a Downtown Specific Plan Amendment adopted and a subsequent EIR certified in 2009. The City adopted three addenda to the subsequent EIR in September 2018, May 2019, and October 2020, respectively (the original EIR, subsequent EIR, and addenda are collectively referred to as the “EIR”). The Downtown Specific Plan designates the project site for the Downtown Workforce Housing Project, which includes 130 multifamily and the 2-acre park known as Veterans Park. The City approved project-specific entitlements for the Downtown Workforce Housing Project on May 25, 2021, finding that the Project was exempt from further CEQA review because it is a residential project consistent with a Specific Plan for which an EIR was certified, and that none of the circumstances requiring further CEQA review had occurred. The current action regarding the soil excavation contract is a subsequent approval necessary to implement the Downtown Workforce Housing Project, and the excavation activities were contemplated in the Item 3.2
Supplemental Resolution - Final
314
3 RESOLUTION NO. ________
certified SEIR and MMRP. The City worked closely with the San Francisco Regional Water Quality Control Board to implement site cleanup consistent with the MMRP, which resulted in a Site Management Plan dated July 1, 2022 (“SMP”). The SMP includes, among other things, the construction of two multi-story, multi-family residential buildings over underground parking structures and offsite soil disposal. The SMP further acknowledges that the work will disturb the upper approximate 20 ft of soil under Building A (North building), the upper 9 ft of soil under Building B (South building) and the upper 2 ft of soil in the remaining project area. These actions implement the SEIR’s MMRP and were anticipated in connection with the City’s original approval of the Downtown Workforce Housing Project. As explained further below, therefore the approval of the soil excavation contract is not new information, change in circumstances, or a change in the project, and therefore the actions remain exempt from CEQA without the need for subsequent review under Government Code section 65457 and CEQA Guidelines section 15182(c).

BE IT FURTHER RESOLVED , that the proposed work is entirely within the scope of the Specific Plan EIR, dated February 9, 2004 (SCH No.: 2003032038), the Specific Plan Subsequent EIR, dated March 30, 2009 (SCH No.: 2008092085), and the Specific Plan Subsequent EIR Addenda adopted by City Council on September 10, 2018, by Resolution 2018-153, May 13, 2019 by Resolution 2019-064, and October 26, 2020 by Resolution 2020-178. The environmental effects of the project were previously evaluated in the certified 2009 Subsequent Downtown Specific Plan EIR (SCH:
2008092085) and addenda in compliance with the adopted Mitigation Monitoring and Reporting Program (MMRP) and as set forth in the SMP approved by the San Francisco Bay Area Regional Water Quality Control Board. Since adoption of the Subsequent EIR and addenda, there have been no substantial changes in the project or in the circumstances under which the project is being undertaken which would require changes in the Subsequent EIR and addenda, nor has any significant new information become available which would require changes in the Subsequent EIR and addenda.

Pursuant to Public Resources Code section 21166 and CEQA Guidelines section 15162, no further environmental review is required.

Item 3.2
Supplemental Resolution - Final
315
4 RESOLUTION NO. ________
The record of project approval is available to the General Public at: City of Livermore, 1052 South Livermore Avenue, Livermore, CA 94550.

BE IT FURTHER RESOLVED by the City Council of the City of Livermore, that it hereby:

1. Rescinds Resolution No. 2026-125 in its entirety;

2. Authorizes a supplemental appropriation of $75,000 from the Low-Income Housing Fund (Fund 200) to the budget for the Livermore Village Remediation Project DR202118;

3. Authorizes a budget reduction of $75,000 from the Human Services Facility Fees (Fund 290) to the budget for the Livermore Village Remediation Project DR202118;

5. Rejects all other bids or proposals;

6. Authorizes the City Manager to approve and execute change orders up to a cumulative amount of ten percent of the construction contract value of $2,285,985; and

7. Authorizes the City Manager to take whatever actions are necessary and appropriate to carry out the purpose and intent of this resolution.

On motion of Council Member ______________________, seconded by Council Member ______________________, the foregoing resolution was passed and adopted on August 20, 2026, by the following vote:

AYES:

NOES:

ABSENT:

ABSTAIN:

ATTEST: APPROVED AS TO FORM:
/s/ Kimberly D. Cilley
Helena Graves Kimberly D. Cilley
Acting City Clerk City Attorney

Exhibit A – Bay Cities Paving & Grading, Inc. Contract
Item 3.2
Supplemental Resolution - Final
316
1 v
Award Construction Contract to Bay
Cities Paving & Grading for
City CIP No. DR202118
August 20, 2026
Presented by: Rick Teczon, Assistant City Engineer
Community Development Department
Soil
Removal
Limits
1 2
Item 3.2
PowerPoint Presentation
317
2 Project Benefits
0 to 2 feet: Lead, Arsenic, Nickel
2 to 5 feet: Arsenic, Nickel
More than 5 feet: No Exposure
Recommended Action
• Rescind Resolution No. 2026-125;
• Adopt California Environmental Quality Act (CEQA) findings; • Authorize supplemental appropriation and budget reduction; • Award construction contract with Bay Cities Paving & Grading, Inc.;
• Reject all other bids or proposals;
• Authorize ten percent (10%) change order allowance; and • Authorize the City Manager to take whatever actions are necessary and appropriate to carry out the purpose and intent of this resolution.
3 4
Item 3.2
PowerPoint Presentation
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336

Livermore City CouncilAugust 20, 2026

Livermore City Council
August 20, 2026