Depth (ft bgs)USCS GraphicPID (ppmv)
Sample ID
Sample Analyzed
Boring/Well
Construction
Details
Lithologic Description
Sample IntervalUSCS
3.25 SVP-20
Surveyed Location:
Well Construction Information
NA
NA
Monument Type: NA
Unique Well ID: NA
Filter Pack: Ground Surface Elevation (ft): NA
Y:
NA
Boring Abandonment:
Casing Diameter (in): Surface Seal: NA NA
Screen Slot Size (in): Annular Seal:
Screened Interval (ft bgs):
NA
1/4" Nylaflow
4 NA NA
Top of Casing Elevation (ft):
X:
Hydrated #8
Bentonite
Dry #8
Bentonite
#3 Sand
Pack with
Vapor Probe
SVP-20
0.2 0.3
0 5
10 0.0-0.3': Asphalt. Hand auger to 4.5' bgs
0.3-4.5': Silty fine SAND (SM), brown (10YR 5/3), estimated loose, moist, no odor.
3.5': Trace medium sand
4.5': End of boring.
AC
SM
3330
Client:
Project: 5355 Airport Drive
Prologis Inc
% Recovery
Farallon PN:
Logged By:
Reviewed By:
Nate Montoy
Jared Eudell
1071-080
Date/Time Completed: 12/9/22 Boring Diameter (in):
Location: Ontario, California
Sampler Type:
Drilling Operator:
Drilling Equipment:
Drilling Method:
Drilling Company:
Date/Time Started:
NA
Andrew
Hand Auger
Hand Auger
Millenium
12/9/22
Constructed Well Depth (ft bgs):
Total Boring Depth (ft bgs):
Depth to Water ATD (ft bgs): NE
4.5 4
Log of Boring:
Depth (ft bgs)USCS GraphicPID (ppmv)
Sample ID
Sample Analyzed
Boring/Well
Construction
Details
Lithologic Description
Sample IntervalUSCS
3.25 SVP-21
Surveyed Location:
Well Construction Information
NA
NA
Monument Type: NA
Unique Well ID: NA
Filter Pack: Ground Surface Elevation (ft): NA
Y:
NA
Boring Abandonment:
Casing Diameter (in): Surface Seal: NA NA
Screen Slot Size (in): Annular Seal:
Screened Interval (ft bgs):
NA
1/4" Nylaflow
4 NA NA
Top of Casing Elevation (ft):
X:
Hydrated #8
Bentonite
Dry #8
Bentonite
#3 Sand
Pack with
Vapor Probe
SVP-21
0.4 0
5 10
0.0-1.2': Concrete. Hand auger to 4.5' bgs
1.2-4.5': Silty fine SAND (SM), brown (10YR 5/3), estimated loose, moist, no odor.
4.5': End of boring.
AC
SM
3331
Client:
Project: 5355 Airport Drive
Prologis Inc
% Recovery
Farallon PN:
Logged By:
Reviewed By:
Nate Montoy
Jared Eudell
1071-080
Date/Time Completed: 12/9/22 Boring Diameter (in):
Location: Ontario, California
Sampler Type:
Drilling Operator:
Drilling Equipment:
Drilling Method:
Drilling Company:
Date/Time Started:
NA
Andrew
Hand Auger
Hand Auger
Millenium
12/9/22
Constructed Well Depth (ft bgs):
Total Boring Depth (ft bgs):
Depth to Water ATD (ft bgs): NE
4.5 4
Log of Boring:
Depth (ft bgs)USCS GraphicPID (ppmv)
Sample ID
Sample Analyzed
Boring/Well
Construction
Details
Lithologic Description
Sample IntervalUSCS
3.25 SVP-22
Surveyed Location:
Well Construction Information
NA
NA
Monument Type: NA
Unique Well ID: NA
Filter Pack: Ground Surface Elevation (ft): NA
Y:
NA
Boring Abandonment:
Casing Diameter (in): Surface Seal: NA NA
Screen Slot Size (in): Annular Seal:
Screened Interval (ft bgs):
NA
1/4" Nylaflow
4 NA NA
Top of Casing Elevation (ft):
X:
Hydrated #8
Bentonite
Dry #8
Bentonite
#3 Sand
Pack with
Vapor Probe
SVP-22
0.1 0.3
0 5
10 0.0-0.4': Concrete: Hand auger to 4.5' bgs
0.4-4.5': Silty fine SAND (SM), with trace medium sand, brown (10YR 5/3), estimated loose, moist, no odor.
3.0': Becomes brown (10YR 5/4), no medium sand.
4.5': End of boring.
AC
SM
3332
Client:
Project: 5355 Airport Drive
Prologis Inc
% Recovery
Farallon PN:
Logged By:
Reviewed By:
Nate Montoy
Jared Eudell
1071-080
Date/Time Completed: 12/9/22 Boring Diameter (in):
Location: Ontario, California
Sampler Type:
Drilling Operator:
Drilling Equipment:
Drilling Method:
Drilling Company:
Date/Time Started:
NA
Andrew
Hand Auger
Hand Auger
Millenium
12/9/22
Constructed Well Depth (ft bgs):
Total Boring Depth (ft bgs):
Depth to Water ATD (ft bgs): NE
4.5 4
Log of Boring:
Depth (ft bgs)USCS GraphicPID (ppmv)
Sample ID
Sample Analyzed
Boring/Well
Construction
Details
Lithologic Description
Sample IntervalUSCS
3.25 SVP-23
Surveyed Location:
Well Construction Information
NA
NA
Monument Type: NA
Unique Well ID: NA
Filter Pack: Ground Surface Elevation (ft): NA
Y:
NA
Boring Abandonment:
Casing Diameter (in): Surface Seal: NA NA
Screen Slot Size (in): Annular Seal:
Screened Interval (ft bgs):
NA
1/4" Nylaflow
4 NA NA
Top of Casing Elevation (ft):
X:
Hydrated #8
Bentonite
Dry #8
Bentonite
#3 Sand
Pack with
Vapor Probe
SVP-23
0.4 0.2
0 5
10 0.0-0.3': Asphalt. Hand auger to 4.5' bgs
0.3-4.5': Silty fine SAND (SM) with trace sub-angular gravel, brown (10YR 5/3), estimated loose, moist, no odor.
3.0': Becomes brown (10YR 5/4)
4.5': End of boring.
AC
SM
3333
Client:
Project: 5355 Airport Drive
Prologis Inc
% Recovery
Farallon PN:
Logged By:
Reviewed By:
Nate Montoy
Jared Eudell
1071-080
Date/Time Completed: 12/9/22 Boring Diameter (in):
Location: Ontario, California
Sampler Type:
Drilling Operator:
Drilling Equipment:
Drilling Method:
Drilling Company:
Date/Time Started:
NA
Andrew
Hand Auger
Hand Auger
Millenium
12/9/22
Constructed Well Depth (ft bgs):
Total Boring Depth (ft bgs):
Depth to Water ATD (ft bgs): NE
4.5 4
Log of Boring:
Depth (ft bgs)USCS GraphicPID (ppmv)
Sample ID
Sample Analyzed
Boring/Well
Construction
Details
Lithologic Description
Sample IntervalUSCS
3.25 SVP-24
Surveyed Location:
Well Construction Information
NA
NA
Monument Type: NA
Unique Well ID: NA
Filter Pack: Ground Surface Elevation (ft): NA
Y:
NA
Boring Abandonment:
Casing Diameter (in): Surface Seal: NA NA
Screen Slot Size (in): Annular Seal:
Screened Interval (ft bgs):
NA
1/4" Nylaflow
4 NA NA
Top of Casing Elevation (ft):
X:
Hydrated #8
Bentonite
Dry #8
Bentonite
#3 Sand
Pack with
Vapor Probe
SVP-24
0.5 0.4
0 5
10 0.0-0.7': Asphalt. Hand auger to 4.5' bgs
0.7-4.5': Silty fine SAND (SM) with sub-angular gravel, brown (10YR 5/3), estimated loose, moist, no odor.
4.5': End of boring.
AC
SM
3334
Client:
Project: 5355 Airport Drive
Prologis Inc
% Recovery
Farallon PN:
Logged By:
Reviewed By:
Nate Montoy
Jared Eudell
1071-080
Date/Time Completed: 12/9/22 Boring Diameter (in):
Location: Ontario, California
Sampler Type:
Drilling Operator:
Drilling Equipment:
Drilling Method:
Drilling Company:
Date/Time Started:
NA
Andrew
Hand Auger
Hand Auger
Millenium
12/9/22
Constructed Well Depth (ft bgs):
Total Boring Depth (ft bgs):
Depth to Water ATD (ft bgs): NE
4.5 4
Log of Boring:
Depth (ft bgs)USCS GraphicPID (ppmv)
Sample ID
Sample Analyzed
Boring/Well
Construction
Details
Lithologic Description
Sample IntervalUSCS
3.25 SVP-25
Surveyed Location:
Well Construction Information
NA
NA
Monument Type: NA
Unique Well ID: NA
Filter Pack: Ground Surface Elevation (ft): NA
Y:
NA
Boring Abandonment:
Casing Diameter (in): Surface Seal: NA NA
Screen Slot Size (in): Annular Seal:
Screened Interval (ft bgs):
NA
1/4" Nylaflow
4 NA NA
Top of Casing Elevation (ft):
X:
Hydrated #8
Bentonite
Dry #8
Bentonite
#3 Sand
Pack with
Vapor Probe
SVP-25
0.9 0.4
0 5
10 0.0-0.4': Concrete. Hand auger to 4.5' bgs
0.4-4.5': Silty fine SAND (SM) with sub-angular gravel, brown (10YR 5/4), estimated loose, moist, no odor.
4.5': End of boring.
AC
SM
3335
Client:
Project: 5355 Airport Drive
Prologis Inc
% Recovery
Farallon PN:
Logged By:
Reviewed By:
Nate Montoy
Jared Eudell
1071-080
Date/Time Completed: 12/9/22 Boring Diameter (in):
Location: Ontario, California
Sampler Type:
Drilling Operator:
Drilling Equipment:
Drilling Method:
Drilling Company:
Date/Time Started:
NA
Andrew
Hand Auger
Hand Auger
Millenium
12/9/22
Constructed Well Depth (ft bgs):
Total Boring Depth (ft bgs):
Depth to Water ATD (ft bgs): NE
4.5 4
Log of Boring:
Depth (ft bgs)USCS GraphicPID (ppmv)
Sample ID
Sample Analyzed
Boring/Well
Construction
Details
Lithologic Description
Sample IntervalUSCS
3.25 SVP-26
Surveyed Location:
Well Construction Information
NA
NA
Monument Type: NA
Unique Well ID: NA
Filter Pack: Ground Surface Elevation (ft): NA
Y:
NA
Boring Abandonment:
Casing Diameter (in): Surface Seal: NA NA
Screen Slot Size (in): Annular Seal:
Screened Interval (ft bgs):
NA
1/4" Nylaflow
4 NA NA
Top of Casing Elevation (ft):
X:
Hydrated #8
Bentonite
Dry #8
Bentonite
#3 Sand
Pack with
Vapor Probe
SVP-26
0.6 1.0
0 5
10 0.0-0.4': Concrete. Hand auger to 4.5' bgs
0.4-4.5': Silty fine SAND (SM), brown (10YR 5/3), estimated loose, moist, no odor.
4.5': End of boring.
AC
SM
3336
P:\1071 Prologis\1071080 2021 SoCal Due Diligence II\002 5355 E Airport Dr\Deliverables\2023 Soil Gas Report\2023.02.14_5355 E. Airport Dr_Soil Gas Report_Farallon.docx
APPENDIX B
LABORATORY ANALYTICAL REPORTS
SOIL GAS INVESTIGATION REPORT
5355 East Airport Drive
Ontario, California
Farallon PN: 1071-080 (Task 2)
3337
Logo
22 December 2022
Kathy Lehnus
Farallon Consulting
27 Mauchly Suite 213
Irvine, CA 92618
Re: 5355 E. Airport Drive
Enclosed are the results of analyses for samples received by the laboratory on 12/16/22. If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Colby Wakeman
Lab Director
3338
11007 FOREST PLACE
SANTA FE SPRINGS, CA 90670
714-449-9937 PHONE
562-646-1611 FAX
Project Manager: Kathy Lehnus
Farallon Consulting
27 Mauchly Suite 213
Irvine, CA 92618
Project Number: 1071-080
Project: 5355 E. Airport Drive
Reported
12/22/22 11:54
ANALYTICAL REPORT FOR SAMPLES
Sample ID Laboratory ID Matrix Date Sampled Date Received SVP-20 JEI220368-01 Soil Gas 12/16/2022 08:51 12/16/2022 15:16 SVP-21 JEI220368-02 Soil Gas 12/16/2022 09:26 12/16/2022 15:16 SVP-22 JEI220368-03 Soil Gas 12/16/2022 10:07 12/16/2022 15:16 SVP-23 JEI220368-04 Soil Gas 12/16/2022 10:46 12/16/2022 15:16 SVP-24 JEI220368-05 Soil Gas 12/16/2022 11:35 12/16/2022 15:16 SVP-26 JEI220368-06 Soil Gas 12/16/2022 12:07 12/16/2022 15:16 SVP-25 JEI220368-07 Soil Gas 12/16/2022 12:39 12/16/2022 15:16 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.
Jones Environmental, Inc.
Colby Wakeman
Lab Director
3339
11007 FOREST PLACE
SANTA FE SPRINGS, CA 90670
714-449-9937 PHONE
562-646-1611 FAX
Project Manager: Kathy Lehnus
Farallon Consulting
27 Mauchly Suite 213
Irvine, CA 92618
Project Number: 1071-080
Project: 5355 E. Airport Drive
Reported
12/22/22 11:54
DETECTIONS SUMMARY
Sample ID: SVP-20 Laboratory ID: JEI220368-01
Analyte Result
Reporting
Limit Units Method Notes
Cyclohexane 1.8 1.0 µg/m3 EPA TO-15
Ethylbenzene 1.0 1.0 µg/m3 EPA TO-15
Freon 11 3.2 1.0 µg/m3 EPA TO-15
Freon 12 2.3 1.0 µg/m3 EPA TO-15
Toluene 2.9 1.0 µg/m3 EPA TO-15
m+p-Xylene 4.7 1.0 µg/m3 EPA TO-15
Sample ID: SVP-21 Laboratory ID: JEI220368-02
Analyte Result
Reporting
Limit Units Method Notes
Freon 11 2.6 1.0 µg/m3 EPA TO-15
Freon 12 2.6 1.0 µg/m3 EPA TO-15
Tetrachloroethene 3.5 1.0 µg/m3 EPA TO-15
Toluene 1.6 1.0 µg/m3 EPA TO-15
m+p-Xylene 3.0 1.0 µg/m3 EPA TO-15
o-Xylene 1.4 1.0 µg/m3 EPA TO-15
Sample ID: SVP-22 Laboratory ID: JEI220368-03
Analyte Result
Reporting
Limit Units Method Notes
Cyclohexane 19.0 1.0 µg/m3 EPA TO-15
Ethylbenzene 2.6 1.0 µg/m3 EPA TO-15
Freon 11 1.3 1.0 µg/m3 EPA TO-15
Freon 12 2.5 1.0 µg/m3 EPA TO-15
Tetrachloroethene 2.6 1.0 µg/m3 EPA TO-15
Toluene 4.9 1.0 µg/m3 EPA TO-15
m+p-Xylene 11.5 1.0 µg/m3 EPA TO-15
The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.
Jones Environmental, Inc.
Colby Wakeman
Lab Director
3340
11007 FOREST PLACE
SANTA FE SPRINGS, CA 90670
714-449-9937 PHONE
562-646-1611 FAX
Project Manager: Kathy Lehnus
Farallon Consulting
27 Mauchly Suite 213
Irvine, CA 92618
Project Number: 1071-080
Project: 5355 E. Airport Drive
Reported
12/22/22 11:54
DETECTIONS SUMMARY
Sample ID: SVP-23 Laboratory ID: JEI220368-04
Analyte Result
Reporting
Limit Units Method Notes
Cyclohexane 1.3 1.0 µg/m3 EPA TO-15
Freon 11 1.3 1.0 µg/m3 EPA TO-15
Freon 12 2.1 1.0 µg/m3 EPA TO-15
Toluene 1.6 1.0 µg/m3 EPA TO-15
1,2,4-Trimethylbenzene 4.6 1.0 µg/m3 EPA TO-15
m+p-Xylene 4.1 1.0 µg/m3 EPA TO-15
Sample ID: SVP-24 Laboratory ID: JEI220368-05
Analyte Result
Reporting
Limit Units Method Notes
Freon 11 1.1 1.0 µg/m3 EPA TO-15
Freon 12 2.8 1.0 µg/m3 EPA TO-15
Tetrachloroethene 5.7 1.0 µg/m3 EPA TO-15
Sample ID: SVP-26 Laboratory ID: JEI220368-06
Analyte Result
Reporting
Limit Units Method Notes
Carbon Disulfide 1.5 1.0 µg/m3 EPA TO-15
Cyclohexane 2.8 1.0 µg/m3 EPA TO-15
Ethylbenzene 1.8 1.0 µg/m3 EPA TO-15
Freon 11 1.1 1.0 µg/m3 EPA TO-15
Freon 12 8.9 1.0 µg/m3 EPA TO-15
Tetrachloroethene 60.2 1.0 µg/m3 EPA TO-15
Toluene 4.4 1.0 µg/m3 EPA TO-15
m+p-Xylene 6.6 1.0 µg/m3 EPA TO-15
o-Xylene 3.2 1.0 µg/m3 EPA TO-15
Sample ID: SVP-25 Laboratory ID: JEI220368-07
Analyte Result
Reporting
Limit Units Method Notes
The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.
Jones Environmental, Inc.
Colby Wakeman
Lab Director
3341
11007 FOREST PLACE
SANTA FE SPRINGS, CA 90670
714-449-9937 PHONE
562-646-1611 FAX
Project Manager: Kathy Lehnus
Farallon Consulting
27 Mauchly Suite 213
Irvine, CA 92618
Project Number: 1071-080
Project: 5355 E. Airport Drive
Reported
12/22/22 11:54
DETECTIONS SUMMARY
Sample ID: SVP-25 Laboratory ID: JEI220368-07
Analyte Result
Reporting
Limit Units Method Notes
Cyclohexane 1.0 1.0 µg/m3 EPA TO-15
Freon 11 1.1 1.0 µg/m3 EPA TO-15
Freon 12 4.7 1.0 µg/m3 EPA TO-15
Tetrachloroethene 13.0 1.0 µg/m3 EPA TO-15
m+p-Xylene 1.4 1.0 µg/m3 EPA TO-15
The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.
Jones Environmental, Inc.
Colby Wakeman
Lab Director
3342
11007 FOREST PLACE
SANTA FE SPRINGS, CA 90670
714-449-9937 PHONE
562-646-1611 FAX
Project Manager: Kathy Lehnus
Farallon Consulting
27 Mauchly Suite 213
Irvine, CA 92618
Project Number: 1071-080
Project: 5355 E. Airport Drive
Reported
12/22/22 11:54
SVP-20
JEI220368-01(Soil Gas)
Result
Reporting
Analyte Limit Units Dilution Batch Prepared Analyzed Method Notes Volatile Organic Compounds by EPA TO-15
Benzene ND 1.0 µg/m3 1 QC2212085 12/19/22 EPA TO-15
Bromodichloromethane ND 1.0 µg/m3 " " " "
Bromoform ND 1.0 µg/m3 " " " "
1,3-Butadiene ND 1.0 µg/m3 " " " "
n-Butylbenzene ND 1.0 µg/m3 " " " "
sec-Butylbenzene ND 1.0 µg/m3 " " " "
tert-Butylbenzene ND 1.0 µg/m3 " " " "
Carbon tetrachloride ND 1.0 µg/m3 " " " "
Chlorobenzene ND 1.0 µg/m3 " " " "
Chloroform ND 1.0 µg/m3 " " " "
Carbon Disulfide ND 1.0 µg/m3 " " " "
Cyclohexane 1.8 1.0 µg/m3 " " " "
Dibromochloromethane ND 1.0 µg/m3 " " " "
1,2-Dibromoethane (EDB) ND 1.0 µg/m3 " " " "
1,4-Dioxane ND 1.0 µg/m3 " " " "
1,2- Dichlorobenzene ND 1.0 µg/m3 " " " "
1,3-Dichlorobenzene ND 1.0 µg/m3 " " " "
1,4-Dichlorobenzene ND 1.0 µg/m3 " " " "
1,1-Dichloroethane ND 1.0 µg/m3 " " " "
1,2-Dichloroethane ND 1.0 µg/m3 " " " "
1,1-Dichloroethene ND 1.0 µg/m3 " " " "
cis-1,2-Dichloroethene ND 1.0 µg/m3 " " " "
trans-1,2-Dichloroethene ND 1.0 µg/m3 " " " "
Ethyl Acetate ND 1.0 µg/m3 " " " "
Ethylbenzene 1.0 1.0 µg/m3 " " " "
Freon 11 3.2 1.0 µg/m3 " " " "
Freon 12 2.3 1.0 µg/m3 " " " "
Freon 113 ND 1.0 µg/m3 " " " "
Isopropylbenzene ND 1.0 µg/m3 " " " "
4-Isopropyltoluene ND 2.5 µg/m3 " " " "
Methylene chloride ND 1.0 µg/m3 " " " "
Naphthalene ND 1.0 µg/m3 " " " "
n-Propylbenzene ND 1.0 µg/m3 " " " "
Styrene ND 1.0 µg/m3 " " " "
1,1,1,2-Tetrachloroethane ND 1.0 µg/m3 " " " "
1,1,2,2-Tetrachloroethane ND 1.0 µg/m3 " " " "
Tetrachloroethene ND 1.0 µg/m3 " " " "
Toluene 2.9 1.0 µg/m3 " " " "
The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.
Jones Environmental, Inc.
Colby Wakeman
Lab Director
3343
11007 FOREST PLACE
SANTA FE SPRINGS, CA 90670
714-449-9937 PHONE
562-646-1611 FAX
Project Manager: Kathy Lehnus
Farallon Consulting
27 Mauchly Suite 213
Irvine, CA 92618
Project Number: 1071-080
Project: 5355 E. Airport Drive
Reported
12/22/22 11:54
SVP-20
JEI220368-01(Soil Gas)
Result
Reporting
Analyte Limit Units Dilution Batch Prepared Analyzed Method Notes Volatile Organic Compounds by EPA TO-15
1,1,1-Trichloroethane ND 1.0 µg/m3 1 QC2212085 12/19/22 EPA TO-15 1,1,2-Trichloroethane ND 1.0 µg/m3 " " " "
Trichloroethene ND 1.0 µg/m3 " " " "
1,2,4-Trimethylbenzene ND 1.0 µg/m3 " " " "
1,3,5-Trimethylbenzene ND 1.0 µg/m3 " " " "
Vinyl Chloride ND 1.0 µg/m3 " " " "
m+p-Xylene 4.7 1.0 µg/m3 " " " "
o-Xylene ND 1.0 µg/m3 " " " "
MTBE ND 1.0 µg/m3 " " " "
Ethyl-tert-butylether ND 1.0 µg/m3 " " " "
Di-isopropylether ND 1.0 µg/m3 " " " "
tert-amylmethylether ND 1.0 µg/m3 " " " "
Surrogate: 4-Bromofluorobenzene 100.68 % 80 - 120
The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.
Jones Environmental, Inc.
Colby Wakeman
Lab Director
1,1-DFA (LCC) ND 10.0 µg/m3 " " " "
3344
11007 FOREST PLACE
SANTA FE SPRINGS, CA 90670
714-449-9937 PHONE
562-646-1611 FAX
Project Manager: Kathy Lehnus
Farallon Consulting
27 Mauchly Suite 213
Irvine, CA 92618
Project Number: 1071-080
Project: 5355 E. Airport Drive
Reported
12/22/22 11:54
SVP-21
JEI220368-02(Soil Gas)
Result
Reporting
Analyte Limit Units Dilution Batch Prepared Analyzed Method Notes Volatile Organic Compounds by EPA TO-15
Benzene ND 1.0 µg/m3 1 QC2212085 12/19/22 EPA TO-15
Bromodichloromethane ND 1.0 µg/m3 " " " "
Bromoform ND 1.0 µg/m3 " " " "
1,3-Butadiene ND 1.0 µg/m3 " " " "
n-Butylbenzene ND 1.0 µg/m3 " " " "
sec-Butylbenzene ND 1.0 µg/m3 " " " "
tert-Butylbenzene ND 1.0 µg/m3 " " " "
Carbon tetrachloride ND 1.0 µg/m3 " " " "
Chlorobenzene ND 1.0 µg/m3 " " " "
Chloroform ND 1.0 µg/m3 " " " "
Carbon Disulfide ND 1.0 µg/m3 " " " "
Cyclohexane ND 1.0 µg/m3 " " " "
Dibromochloromethane ND 1.0 µg/m3 " " " "
1,2-Dibromoethane (EDB) ND 1.0 µg/m3 " " " "
1,4-Dioxane ND 1.0 µg/m3 " " " "
1,2- Dichlorobenzene ND 1.0 µg/m3 " " " "
1,3-Dichlorobenzene ND 1.0 µg/m3 " " " "
1,4-Dichlorobenzene ND 1.0 µg/m3 " " " "
1,1-Dichloroethane ND 1.0 µg/m3 " " " "
1,2-Dichloroethane ND 1.0 µg/m3 " " " "
1,1-Dichloroethene ND 1.0 µg/m3 " " " "
cis-1,2-Dichloroethene ND 1.0 µg/m3 " " " "
trans-1,2-Dichloroethene ND 1.0 µg/m3 " " " "
Ethyl Acetate ND 1.0 µg/m3 " " " "
Ethylbenzene ND 1.0 µg/m3 " " " "
Freon 11 2.6 1.0 µg/m3 " " " "
Freon 12 2.6 1.0 µg/m3 " " " "
Freon 113 ND 1.0 µg/m3 " " " "
Isopropylbenzene ND 1.0 µg/m3 " " " "
4-Isopropyltoluene ND 2.5 µg/m3 " " " "
Methylene chloride ND 1.0 µg/m3 " " " "
Naphthalene ND 1.0 µg/m3 " " " "
n-Propylbenzene ND 1.0 µg/m3 " " " "
Styrene ND 1.0 µg/m3 " " " "
1,1,1,2-Tetrachloroethane ND 1.0 µg/m3 " " " "
1,1,2,2-Tetrachloroethane ND 1.0 µg/m3 " " " "
Tetrachloroethene 3.5 1.0 µg/m3 " " " "
Toluene 1.6 1.0 µg/m3 " " " "
The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.
Jones Environmental, Inc.
Colby Wakeman
Lab Director
3345
11007 FOREST PLACE
SANTA FE SPRINGS, CA 90670
714-449-9937 PHONE
562-646-1611 FAX
Project Manager: Kathy Lehnus
Farallon Consulting
27 Mauchly Suite 213
Irvine, CA 92618
Project Number: 1071-080
Project: 5355 E. Airport Drive
Reported
12/22/22 11:54
SVP-21
JEI220368-02(Soil Gas)
Result
Reporting
Analyte Limit Units Dilution Batch Prepared Analyzed Method Notes Volatile Organic Compounds by EPA TO-15
1,1,1-Trichloroethane ND 1.0 µg/m3 1 QC2212085 12/19/22 EPA TO-15 1,1,2-Trichloroethane ND 1.0 µg/m3 " " " "
Trichloroethene ND 1.0 µg/m3 " " " "
1,2,4-Trimethylbenzene ND 1.0 µg/m3 " " " "
1,3,5-Trimethylbenzene ND 1.0 µg/m3 " " " "
Vinyl Chloride ND 1.0 µg/m3 " " " "
m+p-Xylene 3.0 1.0 µg/m3 " " " "
o-Xylene 1.4 1.0 µg/m3 " " " "
MTBE ND 1.0 µg/m3 " " " "
Ethyl-tert-butylether ND 1.0 µg/m3 " " " "
Di-isopropylether ND 1.0 µg/m3 " " " "
tert-amylmethylether ND 1.0 µg/m3 " " " "
Surrogate: 4-Bromofluorobenzene 100.71 % 80 - 120
The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.
Jones Environmental, Inc.
Colby Wakeman
Lab Director
1,1-DFA (LCC) ND 10.0 µg/m3 " " " "
3346
11007 FOREST PLACE
SANTA FE SPRINGS, CA 90670
714-449-9937 PHONE
562-646-1611 FAX
Project Manager: Kathy Lehnus
Farallon Consulting
27 Mauchly Suite 213
Irvine, CA 92618
Project Number: 1071-080
Project: 5355 E. Airport Drive
Reported
12/22/22 11:54
SVP-22
JEI220368-03(Soil Gas)
Result
Reporting
Analyte Limit Units Dilution Batch Prepared Analyzed Method Notes Volatile Organic Compounds by EPA TO-15
Benzene ND 1.0 µg/m3 1 QC2212085 12/19/22 EPA TO-15
Bromodichloromethane ND 1.0 µg/m3 " " " "
Bromoform ND 1.0 µg/m3 " " " "
1,3-Butadiene ND 1.0 µg/m3 " " " "
n-Butylbenzene ND 1.0 µg/m3 " " " "
sec-Butylbenzene ND 1.0 µg/m3 " " " "
tert-Butylbenzene ND 1.0 µg/m3 " " " "
Carbon tetrachloride ND 1.0 µg/m3 " " " "
Chlorobenzene ND 1.0 µg/m3 " " " "
Chloroform ND 1.0 µg/m3 " " " "
Carbon Disulfide ND 1.0 µg/m3 " " " "
Cyclohexane 19.0 1.0 µg/m3 " " " "
Dibromochloromethane ND 1.0 µg/m3 " " " "
1,2-Dibromoethane (EDB) ND 1.0 µg/m3 " " " "
1,4-Dioxane ND 1.0 µg/m3 " " " "
1,2- Dichlorobenzene ND 1.0 µg/m3 " " " "
1,3-Dichlorobenzene ND 1.0 µg/m3 " " " "
1,4-Dichlorobenzene ND 1.0 µg/m3 " " " "
1,1-Dichloroethane ND 1.0 µg/m3 " " " "
1,2-Dichloroethane ND 1.0 µg/m3 " " " "
1,1-Dichloroethene ND 1.0 µg/m3 " " " "
cis-1,2-Dichloroethene ND 1.0 µg/m3 " " " "
trans-1,2-Dichloroethene ND 1.0 µg/m3 " " " "
Ethyl Acetate ND 1.0 µg/m3 " " " "
Ethylbenzene 2.6 1.0 µg/m3 " " " "
Freon 11 1.3 1.0 µg/m3 " " " "
Freon 12 2.5 1.0 µg/m3 " " " "
Freon 113 ND 1.0 µg/m3 " " " "
Isopropylbenzene ND 1.0 µg/m3 " " " "
4-Isopropyltoluene ND 2.5 µg/m3 " " " "
Methylene chloride ND 1.0 µg/m3 " " " "
Naphthalene ND 1.0 µg/m3 " " " "
n-Propylbenzene ND 1.0 µg/m3 " " " "
Styrene ND 1.0 µg/m3 " " " "
1,1,1,2-Tetrachloroethane ND 1.0 µg/m3 " " " "
1,1,2,2-Tetrachloroethane ND 1.0 µg/m3 " " " "
Tetrachloroethene 2.6 1.0 µg/m3 " " " "
Toluene 4.9 1.0 µg/m3 " " " "
The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.
Jones Environmental, Inc.
Colby Wakeman
Lab Director
3347
11007 FOREST PLACE
SANTA FE SPRINGS, CA 90670
714-449-9937 PHONE
562-646-1611 FAX
Project Manager: Kathy Lehnus
Farallon Consulting
27 Mauchly Suite 213
Irvine, CA 92618
Project Number: 1071-080
Project: 5355 E. Airport Drive
Reported
12/22/22 11:54
SVP-22
JEI220368-03(Soil Gas)
Result
Reporting
Analyte Limit Units Dilution Batch Prepared Analyzed Method Notes Volatile Organic Compounds by EPA TO-15
1,1,1-Trichloroethane ND 1.0 µg/m3 1 QC2212085 12/19/22 EPA TO-15 1,1,2-Trichloroethane ND 1.0 µg/m3 " " " "
Trichloroethene ND 1.0 µg/m3 " " " "
1,2,4-Trimethylbenzene ND 1.0 µg/m3 " " " "
1,3,5-Trimethylbenzene ND 1.0 µg/m3 " " " "
Vinyl Chloride ND 1.0 µg/m3 " " " "
m+p-Xylene 11.5 1.0 µg/m3 " " " "
o-Xylene ND 1.0 µg/m3 " " " "
MTBE ND 1.0 µg/m3 " " " "
Ethyl-tert-butylether ND 1.0 µg/m3 " " " "
Di-isopropylether ND 1.0 µg/m3 " " " "
tert-amylmethylether ND 1.0 µg/m3 " " " "
Surrogate: 4-Bromofluorobenzene 98.16 % 80 - 120
The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.
Jones Environmental, Inc.
Colby Wakeman
Lab Director
1,1-DFA (LCC) ND 10.0 µg/m3 " " " "
3348
11007 FOREST PLACE
SANTA FE SPRINGS, CA 90670
714-449-9937 PHONE
562-646-1611 FAX
Project Manager: Kathy Lehnus
Farallon Consulting
27 Mauchly Suite 213
Irvine, CA 92618
Project Number: 1071-080
Project: 5355 E. Airport Drive
Reported
12/22/22 11:54
SVP-23
JEI220368-04(Soil Gas)
Result
Reporting
Analyte Limit Units Dilution Batch Prepared Analyzed Method Notes Volatile Organic Compounds by EPA TO-15
Benzene ND 1.0 µg/m3 1 QC2212085 12/19/22 EPA TO-15
Bromodichloromethane ND 1.0 µg/m3 " " " "
Bromoform ND 1.0 µg/m3 " " " "
1,3-Butadiene ND 1.0 µg/m3 " " " "
n-Butylbenzene ND 1.0 µg/m3 " " " "
sec-Butylbenzene ND 1.0 µg/m3 " " " "
tert-Butylbenzene ND 1.0 µg/m3 " " " "
Carbon tetrachloride ND 1.0 µg/m3 " " " "
Chlorobenzene ND 1.0 µg/m3 " " " "
Chloroform ND 1.0 µg/m3 " " " "
Carbon Disulfide ND 1.0 µg/m3 " " " "
Cyclohexane 1.3 1.0 µg/m3 " " " "
Dibromochloromethane ND 1.0 µg/m3 " " " "
1,2-Dibromoethane (EDB) ND 1.0 µg/m3 " " " "
1,4-Dioxane ND 1.0 µg/m3 " " " "
1,2- Dichlorobenzene ND 1.0 µg/m3 " " " "
1,3-Dichlorobenzene ND 1.0 µg/m3 " " " "
1,4-Dichlorobenzene ND 1.0 µg/m3 " " " "
1,1-Dichloroethane ND 1.0 µg/m3 " " " "
1,2-Dichloroethane ND 1.0 µg/m3 " " " "
1,1-Dichloroethene ND 1.0 µg/m3 " " " "
cis-1,2-Dichloroethene ND 1.0 µg/m3 " " " "
trans-1,2-Dichloroethene ND 1.0 µg/m3 " " " "
Ethyl Acetate ND 1.0 µg/m3 " " " "
Ethylbenzene ND 1.0 µg/m3 " " " "
Freon 11 1.3 1.0 µg/m3 " " " "
Freon 12 2.1 1.0 µg/m3 " " " "
Freon 113 ND 1.0 µg/m3 " " " "
Isopropylbenzene ND 1.0 µg/m3 " " " "
4-Isopropyltoluene ND 2.5 µg/m3 " " " "
Methylene chloride ND 1.0 µg/m3 " " " "
Naphthalene ND 1.0 µg/m3 " " " "
n-Propylbenzene ND 1.0 µg/m3 " " " "
Styrene ND 1.0 µg/m3 " " " "
1,1,1,2-Tetrachloroethane ND 1.0 µg/m3 " " " "
1,1,2,2-Tetrachloroethane ND 1.0 µg/m3 " " " "
Tetrachloroethene ND 1.0 µg/m3 " " " "
Toluene 1.6 1.0 µg/m3 " " " "
The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.
Jones Environmental, Inc.
Colby Wakeman
Lab Director
3349
11007 FOREST PLACE
SANTA FE SPRINGS, CA 90670
714-449-9937 PHONE
562-646-1611 FAX
Project Manager: Kathy Lehnus
Farallon Consulting
27 Mauchly Suite 213
Irvine, CA 92618
Project Number: 1071-080
Project: 5355 E. Airport Drive
Reported
12/22/22 11:54
SVP-23
JEI220368-04(Soil Gas)
Result
Reporting
Analyte Limit Units Dilution Batch Prepared Analyzed Method Notes Volatile Organic Compounds by EPA TO-15
1,1,1-Trichloroethane ND 1.0 µg/m3 1 QC2212085 12/19/22 EPA TO-15 1,1,2-Trichloroethane ND 1.0 µg/m3 " " " "
Trichloroethene ND 1.0 µg/m3 " " " "
1,2,4-Trimethylbenzene 4.6 1.0 µg/m3 " " " "
1,3,5-Trimethylbenzene ND 1.0 µg/m3 " " " "
Vinyl Chloride ND 1.0 µg/m3 " " " "
m+p-Xylene 4.1 1.0 µg/m3 " " " "
o-Xylene ND 1.0 µg/m3 " " " "
MTBE ND 1.0 µg/m3 " " " "
Ethyl-tert-butylether ND 1.0 µg/m3 " " " "
Di-isopropylether ND 1.0 µg/m3 " " " "
tert-amylmethylether ND 1.0 µg/m3 " " " "
Surrogate: 4-Bromofluorobenzene 100.82 % 80 - 120
The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.
Jones Environmental, Inc.
Colby Wakeman
Lab Director
1,1-DFA (LCC) ND 10.0 µg/m3 " " " "
3350
11007 FOREST PLACE
SANTA FE SPRINGS, CA 90670
714-449-9937 PHONE
562-646-1611 FAX
Project Manager: Kathy Lehnus
Farallon Consulting
27 Mauchly Suite 213
Irvine, CA 92618
Project Number: 1071-080
Project: 5355 E. Airport Drive
Reported
12/22/22 11:54
SVP-24
JEI220368-05(Soil Gas)
Result
Reporting
Analyte Limit Units Dilution Batch Prepared Analyzed Method Notes Volatile Organic Compounds by EPA TO-15
Benzene ND 1.0 µg/m3 1 QC2212085 12/19/22 EPA TO-15
Bromodichloromethane ND 1.0 µg/m3 " " " "
Bromoform ND 1.0 µg/m3 " " " "
1,3-Butadiene ND 1.0 µg/m3 " " " "
n-Butylbenzene ND 1.0 µg/m3 " " " "
sec-Butylbenzene ND 1.0 µg/m3 " " " "
tert-Butylbenzene ND 1.0 µg/m3 " " " "
Carbon tetrachloride ND 1.0 µg/m3 " " " "
Chlorobenzene ND 1.0 µg/m3 " " " "
Chloroform ND 1.0 µg/m3 " " " "
Carbon Disulfide ND 1.0 µg/m3 " " " "
Cyclohexane ND 1.0 µg/m3 " " " "
Dibromochloromethane ND 1.0 µg/m3 " " " "
1,2-Dibromoethane (EDB) ND 1.0 µg/m3 " " " "
1,4-Dioxane ND 1.0 µg/m3 " " " "
1,2- Dichlorobenzene ND 1.0 µg/m3 " " " "
1,3-Dichlorobenzene ND 1.0 µg/m3 " " " "
1,4-Dichlorobenzene ND 1.0 µg/m3 " " " "
1,1-Dichloroethane ND 1.0 µg/m3 " " " "
1,2-Dichloroethane ND 1.0 µg/m3 " " " "
1,1-Dichloroethene ND 1.0 µg/m3 " " " "
cis-1,2-Dichloroethene ND 1.0 µg/m3 " " " "
trans-1,2-Dichloroethene ND 1.0 µg/m3 " " " "
Ethyl Acetate ND 1.0 µg/m3 " " " "
Ethylbenzene ND 1.0 µg/m3 " " " "
Freon 11 1.1 1.0 µg/m3 " " " "
Freon 12 2.8 1.0 µg/m3 " " " "
Freon 113 ND 1.0 µg/m3 " " " "
Isopropylbenzene ND 1.0 µg/m3 " " " "
4-Isopropyltoluene ND 2.5 µg/m3 " " " "
Methylene chloride ND 1.0 µg/m3 " " " "
Naphthalene ND 1.0 µg/m3 " " " "
n-Propylbenzene ND 1.0 µg/m3 " " " "
Styrene ND 1.0 µg/m3 " " " "
1,1,1,2-Tetrachloroethane ND 1.0 µg/m3 " " " "
1,1,2,2-Tetrachloroethane ND 1.0 µg/m3 " " " "
Tetrachloroethene 5.7 1.0 µg/m3 " " " "
Toluene ND 1.0 µg/m3 " " " "
The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.
Jones Environmental, Inc.
Colby Wakeman
Lab Director
3351
11007 FOREST PLACE
SANTA FE SPRINGS, CA 90670
714-449-9937 PHONE
562-646-1611 FAX
Project Manager: Kathy Lehnus
Farallon Consulting
27 Mauchly Suite 213
Irvine, CA 92618
Project Number: 1071-080
Project: 5355 E. Airport Drive
Reported
12/22/22 11:54
SVP-24
JEI220368-05(Soil Gas)
Result
Reporting
Analyte Limit Units Dilution Batch Prepared Analyzed Method Notes Volatile Organic Compounds by EPA TO-15
1,1,1-Trichloroethane ND 1.0 µg/m3 1 QC2212085 12/19/22 EPA TO-15 1,1,2-Trichloroethane ND 1.0 µg/m3 " " " "
Trichloroethene ND 1.0 µg/m3 " " " "
1,2,4-Trimethylbenzene ND 1.0 µg/m3 " " " "
1,3,5-Trimethylbenzene ND 1.0 µg/m3 " " " "
Vinyl Chloride ND 1.0 µg/m3 " " " "
m+p-Xylene ND 1.0 µg/m3 " " " "
o-Xylene ND 1.0 µg/m3 " " " "
MTBE ND 1.0 µg/m3 " " " "
Ethyl-tert-butylether ND 1.0 µg/m3 " " " "
Di-isopropylether ND 1.0 µg/m3 " " " "
tert-amylmethylether ND 1.0 µg/m3 " " " "
Surrogate: 4-Bromofluorobenzene 100.49 % 80 - 120
The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.
Jones Environmental, Inc.
Colby Wakeman
Lab Director
1,1-DFA (LCC) ND 10.0 µg/m3 " " " "
3352
11007 FOREST PLACE
SANTA FE SPRINGS, CA 90670
714-449-9937 PHONE
562-646-1611 FAX
Project Manager: Kathy Lehnus
Farallon Consulting
27 Mauchly Suite 213
Irvine, CA 92618
Project Number: 1071-080
Project: 5355 E. Airport Drive
Reported
12/22/22 11:54
SVP-26
JEI220368-06(Soil Gas)
Result
Reporting
Analyte Limit Units Dilution Batch Prepared Analyzed Method Notes Volatile Organic Compounds by EPA TO-15
Benzene ND 1.0 µg/m3 1 QC2212085 12/19/22 EPA TO-15
Bromodichloromethane ND 1.0 µg/m3 " " " "
Bromoform ND 1.0 µg/m3 " " " "
1,3-Butadiene ND 1.0 µg/m3 " " " "
n-Butylbenzene ND 1.0 µg/m3 " " " "
sec-Butylbenzene ND 1.0 µg/m3 " " " "
tert-Butylbenzene ND 1.0 µg/m3 " " " "
Carbon tetrachloride ND 1.0 µg/m3 " " " "
Chlorobenzene ND 1.0 µg/m3 " " " "
Chloroform ND 1.0 µg/m3 " " " "
Carbon Disulfide 1.5 1.0 µg/m3 " " " "
Cyclohexane 2.8 1.0 µg/m3 " " " "
Dibromochloromethane ND 1.0 µg/m3 " " " "
1,2-Dibromoethane (EDB) ND 1.0 µg/m3 " " " "
1,4-Dioxane ND 1.0 µg/m3 " " " "
1,2- Dichlorobenzene ND 1.0 µg/m3 " " " "
1,3-Dichlorobenzene ND 1.0 µg/m3 " " " "
1,4-Dichlorobenzene ND 1.0 µg/m3 " " " "
1,1-Dichloroethane ND 1.0 µg/m3 " " " "
1,2-Dichloroethane ND 1.0 µg/m3 " " " "
1,1-Dichloroethene ND 1.0 µg/m3 " " " "
cis-1,2-Dichloroethene ND 1.0 µg/m3 " " " "
trans-1,2-Dichloroethene ND 1.0 µg/m3 " " " "
Ethyl Acetate ND 1.0 µg/m3 " " " "
Ethylbenzene 1.8 1.0 µg/m3 " " " "
Freon 11 1.1 1.0 µg/m3 " " " "
Freon 12 8.9 1.0 µg/m3 " " " "
Freon 113 ND 1.0 µg/m3 " " " "
Isopropylbenzene ND 1.0 µg/m3 " " " "
4-Isopropyltoluene ND 2.5 µg/m3 " " " "
Methylene chloride ND 1.0 µg/m3 " " " "
Naphthalene ND 1.0 µg/m3 " " " "
n-Propylbenzene ND 1.0 µg/m3 " " " "
Styrene ND 1.0 µg/m3 " " " "
1,1,1,2-Tetrachloroethane ND 1.0 µg/m3 " " " "
1,1,2,2-Tetrachloroethane ND 1.0 µg/m3 " " " "
Tetrachloroethene 60.2 1.0 µg/m3 " " " "
Toluene 4.4 1.0 µg/m3 " " " "
The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.
Jones Environmental, Inc.
Colby Wakeman
Lab Director
3353
11007 FOREST PLACE
SANTA FE SPRINGS, CA 90670
714-449-9937 PHONE
562-646-1611 FAX
Project Manager: Kathy Lehnus
Farallon Consulting
27 Mauchly Suite 213
Irvine, CA 92618
Project Number: 1071-080
Project: 5355 E. Airport Drive
Reported
12/22/22 11:54
SVP-26
JEI220368-06(Soil Gas)
Result
Reporting
Analyte Limit Units Dilution Batch Prepared Analyzed Method Notes Volatile Organic Compounds by EPA TO-15
1,1,1-Trichloroethane ND 1.0 µg/m3 1 QC2212085 12/19/22 EPA TO-15 1,1,2-Trichloroethane ND 1.0 µg/m3 " " " "
Trichloroethene ND 1.0 µg/m3 " " " "
1,2,4-Trimethylbenzene ND 1.0 µg/m3 " " " "
1,3,5-Trimethylbenzene ND 1.0 µg/m3 " " " "
Vinyl Chloride ND 1.0 µg/m3 " " " "
m+p-Xylene 6.6 1.0 µg/m3 " " " "
o-Xylene 3.2 1.0 µg/m3 " " " "
MTBE ND 1.0 µg/m3 " " " "
Ethyl-tert-butylether ND 1.0 µg/m3 " " " "
Di-isopropylether ND 1.0 µg/m3 " " " "
tert-amylmethylether ND 1.0 µg/m3 " " " "
Surrogate: 4-Bromofluorobenzene 99.26 % 80 - 120
The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.
Jones Environmental, Inc.
Colby Wakeman
Lab Director
1,1-DFA (LCC) ND 10.0 µg/m3 " " " "
3354
11007 FOREST PLACE
SANTA FE SPRINGS, CA 90670
714-449-9937 PHONE
562-646-1611 FAX
Project Manager: Kathy Lehnus
Farallon Consulting
27 Mauchly Suite 213
Irvine, CA 92618
Project Number: 1071-080
Project: 5355 E. Airport Drive
Reported
12/22/22 11:54
SVP-25
JEI220368-07(Soil Gas)
Result
Reporting
Analyte Limit Units Dilution Batch Prepared Analyzed Method Notes Volatile Organic Compounds by EPA TO-15
Benzene ND 1.0 µg/m3 1 QC2212085 12/19/22 EPA TO-15
Bromodichloromethane ND 1.0 µg/m3 " " " "
Bromoform ND 1.0 µg/m3 " " " "
1,3-Butadiene ND 1.0 µg/m3 " " " "
n-Butylbenzene ND 1.0 µg/m3 " " " "
sec-Butylbenzene ND 1.0 µg/m3 " " " "
tert-Butylbenzene ND 1.0 µg/m3 " " " "
Carbon tetrachloride ND 1.0 µg/m3 " " " "
Chlorobenzene ND 1.0 µg/m3 " " " "
Chloroform ND 1.0 µg/m3 " " " "
Carbon Disulfide ND 1.0 µg/m3 " " " "
Cyclohexane 1.0 1.0 µg/m3 " " " "
Dibromochloromethane ND 1.0 µg/m3 " " " "
1,2-Dibromoethane (EDB) ND 1.0 µg/m3 " " " "
1,4-Dioxane ND 1.0 µg/m3 " " " "
1,2- Dichlorobenzene ND 1.0 µg/m3 " " " "
1,3-Dichlorobenzene ND 1.0 µg/m3 " " " "
1,4-Dichlorobenzene ND 1.0 µg/m3 " " " "
1,1-Dichloroethane ND 1.0 µg/m3 " " " "
1,2-Dichloroethane ND 1.0 µg/m3 " " " "
1,1-Dichloroethene ND 1.0 µg/m3 " " " "
cis-1,2-Dichloroethene ND 1.0 µg/m3 " " " "
trans-1,2-Dichloroethene ND 1.0 µg/m3 " " " "
Ethyl Acetate ND 1.0 µg/m3 " " " "
Ethylbenzene ND 1.0 µg/m3 " " " "
Freon 11 1.1 1.0 µg/m3 " " " "
Freon 12 4.7 1.0 µg/m3 " " " "
Freon 113 ND 1.0 µg/m3 " " " "
Isopropylbenzene ND 1.0 µg/m3 " " " "
4-Isopropyltoluene ND 2.5 µg/m3 " " " "
Methylene chloride ND 1.0 µg/m3 " " " "
Naphthalene ND 1.0 µg/m3 " " " "
n-Propylbenzene ND 1.0 µg/m3 " " " "
Styrene ND 1.0 µg/m3 " " " "
1,1,1,2-Tetrachloroethane ND 1.0 µg/m3 " " " "
1,1,2,2-Tetrachloroethane ND 1.0 µg/m3 " " " "
Tetrachloroethene 13.0 1.0 µg/m3 " " " "
Toluene ND 1.0 µg/m3 " " " "
The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.
Jones Environmental, Inc.
Colby Wakeman
Lab Director
3355
11007 FOREST PLACE
SANTA FE SPRINGS, CA 90670
714-449-9937 PHONE
562-646-1611 FAX
Project Manager: Kathy Lehnus
Farallon Consulting
27 Mauchly Suite 213
Irvine, CA 92618
Project Number: 1071-080
Project: 5355 E. Airport Drive
Reported
12/22/22 11:54
SVP-25
JEI220368-07(Soil Gas)
Result
Reporting
Analyte Limit Units Dilution Batch Prepared Analyzed Method Notes Volatile Organic Compounds by EPA TO-15
1,1,1-Trichloroethane ND 1.0 µg/m3 1 QC2212085 12/19/22 EPA TO-15 1,1,2-Trichloroethane ND 1.0 µg/m3 " " " "
Trichloroethene ND 1.0 µg/m3 " " " "
1,2,4-Trimethylbenzene ND 1.0 µg/m3 " " " "
1,3,5-Trimethylbenzene ND 1.0 µg/m3 " " " "
Vinyl Chloride ND 1.0 µg/m3 " " " "
m+p-Xylene 1.4 1.0 µg/m3 " " " "
o-Xylene ND 1.0 µg/m3 " " " "
MTBE ND 1.0 µg/m3 " " " "
Ethyl-tert-butylether ND 1.0 µg/m3 " " " "
Di-isopropylether ND 1.0 µg/m3 " " " "
tert-amylmethylether ND 1.0 µg/m3 " " " "
Surrogate: 4-Bromofluorobenzene 100.81 % 80 - 120
The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.
Jones Environmental, Inc.
Colby Wakeman
Lab Director
1,1-DFA (LCC) ND 10.0 µg/m3 " " " "
3356
11007 FOREST PLACE
SANTA FE SPRINGS, CA 90670
714-449-9937 PHONE
562-646-1611 FAX
Project Manager: Kathy Lehnus
Farallon Consulting
27 Mauchly Suite 213
Irvine, CA 92618
Project Number: 1071-080
Project: 5355 E. Airport Drive
Reported
12/22/22 11:54
Volatile Organic Compounds by EPA TO-15 - Quality Control Result
Reporting
Analyte Limit Units RPD Notes
Spike
Level
Source
Result %REC
%REC
Limits
%REC
Limits
Batch QC2212085 - EPA TO-15
LCS 1
Benzene 0.472 1.0 % 0.5 94 70 - 130
Chlorobenzene 0.453 1.0 % 0.5 91 70 - 130
1,1-Dichloroethene 0.427 1.0 % 0.5 85 70 - 130
cis-1,2-Dichloroethene 0.540 1.0 % 0.5 108 70 - 130
Ethylbenzene 0.469 1.0 % 0.5 94 70 - 130
Tetrachloroethene 0.504 1.0 % 0.5 101 70 - 130
Toluene 0.451 1.0 % 0.5 90 70 - 130
1,1,1-Trichloroethane 0.453 1.0 % 0.5 91 70 - 130
Trichloroethene 0.497 1.0 % 0.5 99 70 - 130
1,2,4-Trimethylbenzene 0.506 1.0 % 0.5 101 70 - 130
Vinyl chloride 0.476 1.0 % 0.5 95 70 - 130
Surrogate: 4-Bromofluorobenzene 97.10 % 80 - 120
LCSD 1
Benzene 0.474 1.0 % 0.5 95 0.42
Chlorobenzene 0.476 1.0 % 0.5 95 4.92
1,1-Dichloroethene 0.434 1.0 % 0.5 87 1.81
cis-1,2-Dichloroethene 0.551 1.0 % 0.5 110 2.05
Ethylbenzene 0.452 1.0 % 0.5 90 3.69
Tetrachloroethene 0.570 1.0 % 0.5 114 12.29
Toluene 0.456 1.0 % 0.5 91 0.95
1,1,1-Trichloroethane 0.449 1.0 % 0.5 90 0.86
Trichloroethene 0.494 1.0 % 0.5 99 0.61
1,2,4-Trimethylbenzene 0.456 1.0 % 0.5 91 10.40
Vinyl chloride 0.433 1.0 % 0.5 87 9.64
Surrogate: 4-Bromofluorobenzene 98.48 % 80 - 120
Method Blank 1
Benzene ND 1.0 µg/m3
Bromodichloromethane ND 1.0 µg/m3
The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.
Jones Environmental, Inc.
Colby Wakeman
Lab Director
3357
11007 FOREST PLACE
SANTA FE SPRINGS, CA 90670
714-449-9937 PHONE
562-646-1611 FAX
Project Manager: Kathy Lehnus
Farallon Consulting
27 Mauchly Suite 213
Irvine, CA 92618
Project Number: 1071-080
Project: 5355 E. Airport Drive
Reported
12/22/22 11:54
Volatile Organic Compounds by EPA TO-15 - Quality Control Result
Reporting
Analyte Limit Units RPD Notes
Spike
Level
Source
Result %REC
%REC
Limits
%REC
Limits
Batch QC2212085 - EPA TO-15
Method Blank 1
Bromoform ND 1.0 µg/m3
1,3-Butadiene ND 1.0 µg/m3
n-Butylbenzene ND 1.0 µg/m3
sec-Butylbenzene ND 1.0 µg/m3
tert-Butylbenzene ND 1.0 µg/m3
Carbon tetrachloride ND 1.0 µg/m3
Chlorobenzene ND 1.0 µg/m3
Chloroform ND 1.0 µg/m3
Carbon Disulfide ND 1.0 µg/m3
Cyclohexane ND 1.0 µg/m3
Dibromochloromethane ND 1.0 µg/m3
1,2-Dibromoethane (EDB) ND 1.0 µg/m3
1,4-Dioxane ND 1.0 µg/m3
1,2- Dichlorobenzene ND 1.0 µg/m3
1,3-Dichlorobenzene ND 1.0 µg/m3
1,4-Dichlorobenzene ND 1.0 µg/m3
1,1-Dichloroethane ND 1.0 µg/m3
1,2-Dichloroethane ND 1.0 µg/m3
1,1-Dichloroethene ND 1.0 µg/m3
cis-1,2-Dichloroethene ND 1.0 µg/m3
trans-1,2-Dichloroethene ND 1.0 µg/m3
Ethyl Acetate ND 1.0 µg/m3
Ethylbenzene ND 1.0 µg/m3
Freon 11 ND 1.0 µg/m3
Freon 12 ND 1.0 µg/m3
Freon 113 ND 1.0 µg/m3
Isopropylbenzene ND 1.0 µg/m3
4-Isopropyltoluene ND 2.5 µg/m3
Methylene chloride ND 1.0 µg/m3
Naphthalene ND 1.0 µg/m3
n-Propylbenzene ND 1.0 µg/m3
Styrene ND 1.0 µg/m3
1,1,1,2-Tetrachloroethane ND 1.0 µg/m3
1,1,2,2-Tetrachloroethane ND 1.0 µg/m3
Tetrachloroethene ND 1.0 µg/m3
Toluene ND 1.0 µg/m3
1,1,1-Trichloroethane ND 1.0 µg/m3
The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.
Jones Environmental, Inc.
Colby Wakeman
Lab Director
3358
11007 FOREST PLACE
SANTA FE SPRINGS, CA 90670
714-449-9937 PHONE
562-646-1611 FAX
Project Manager: Kathy Lehnus
Farallon Consulting
27 Mauchly Suite 213
Irvine, CA 92618
Project Number: 1071-080
Project: 5355 E. Airport Drive
Reported
12/22/22 11:54
Volatile Organic Compounds by EPA TO-15 - Quality Control Result
Reporting
Analyte Limit Units RPD Notes
Spike
Level
Source
Result %REC
%REC
Limits
%REC
Limits
Batch QC2212085 - EPA TO-15
Method Blank 1
1,1,2-Trichloroethane ND 1.0 µg/m3
Trichloroethene ND 1.0 µg/m3
1,2,4-Trimethylbenzene ND 1.0 µg/m3
1,3,5-Trimethylbenzene ND 1.0 µg/m3
Vinyl Chloride ND 1.0 µg/m3
m+p-Xylene ND 1.0 µg/m3
o-Xylene ND 1.0 µg/m3
MTBE ND 1.0 µg/m3
Ethyl-tert-butylether ND 1.0 µg/m3
Di-isopropylether ND 1.0 µg/m3
tert-amylmethylether ND 1.0 µg/m3
Surrogate: 4-Bromofluorobenzene 100.85 % 80 - 120
The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.
Jones Environmental, Inc.
Colby Wakeman
Lab Director
1,1-DFA (LCC) ND 10.0 µg/m3
3359
11007 FOREST PLACE
SANTA FE SPRINGS, CA 90670
714-449-9937 PHONE
562-646-1611 FAX
Project Manager: Kathy Lehnus
Farallon Consulting
27 Mauchly Suite 213
Irvine, CA 92618
Project Number: 1071-080
Project: 5355 E. Airport Drive
Reported
12/22/22 11:54
Notes and Definitions
Analyte DETECTED
Analyte NOT DETECTED at or above the reporting limit
Not Reported
Sample results reported on a dry
Relative Percent Difference
DET
ND
NR
dry
RPD
E Estimated Concentration; concentration exceeds calibration range.
LCC Leak Check Compound
MDL Compound Reported to Method Detection Limit
The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.
Jones Environmental, Inc.
Colby Wakeman
Lab Director
3360
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MEDIA MANAGEMENT PLAN
5355 East Airport Drive
Ontario, California 91761
Submitted by:
Farallon Consulting, L.L.C.
27 Mauchly, Suite 213
Irvine, California 92618
Farallon PN: 1071-080 (Task 2)
For:
Prologis, L.P.
Pier 1, Bay 1
San Francisco, California 94111
February 23, 2023
Prepared by:
Jared Eudell
Associate Scientist
Reviewed by:
Kathy Lehnus, P.G.
Senior Geologist
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TABLE OF CONTENTS
ACRONYMS AND ABBREVIATIONS .................................................................................. iii
1.0 INTRODUCTION.............................................................................................. 1-1
2.0 SITE DESCRIPTION AND BACKGROUND ................................................ 2-1
2.1 SITE DESCRIPTION AND HISTORICAL USE ................................... 2-1
2.2 GENERAL SITE SETTING .................................................................... 2-2
2.3 REGIONAL GEOLOGY AND HYDROGEOLOGY ............................. 2-2
3.0 KNOWN ENVIRONMENTAL CONDITIONS ............................................. 3-1
3.1 PREVIOUS ENVIRONMENTAL INVESTIGATIONS ........................ 3-1
3.2 DEFINING REGULATIONS .................................................................. 3-3
3.3 AREAS OF CONCERN AND CONSTITUENTS OF CONCERN
EXCEEDING DEFINING REGULATIONS .......................................... 3-3
4.0 MEDIA MANAGEMENT PLAN ..................................................................... 4-1
4.1 PROJECT CONTACTS........................................................................... 4-1
4.2 COMMUNICATION REQUIREMENTS ............................................... 4-2
4.3 HEALTH AND SAFETY REQUIREMENTS ........................................ 4-2
4.4 SOIL MANAGEMENT ........................................................................... 4-3
4.4.1 Site Access ................................................................................... 4-4
4.4.2 Soil Excavation ............................................................................ 4-4
4.4.3 Soil Confirmation Sampling ........................................................ 4-4
4.4.4 Soil Stockpiling ............................................................................ 4-4
4.4.5 On-Site Reuse of Soil and Off-Site Disposal of Soil ................... 4-4
4.4.6 Off-Site Reuse of Soil .................................................................. 4-5
4.4.7 Imported Fill Material .................................................................. 4-5
4.4.8 Dust Control ................................................................................. 4-5
4.5 GROUNDWATER MANAGEMENT .................................................... 4-5
4.6 STORMWATER MANAGEMENT ........................................................ 4-5
4.7 UNANTICIPATED SUBSURFACE CONDITIONS ............................. 4-6
4.8 MEDIA MANAGEMENT PLAN REPORTING REQUIREMENTS .... 4-7
5.0 MODIFICATIONS TO THE MEDIA MANAGEMENT PLAN .................. 5-1
6.0 SCOPE, REPRESENTATIONS, AND LIMITATIONS ................................ 6-1
7.0 REFERENCES ................................................................................................... 7-1 3363
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FIGURES
Figure 1 Site Vicinity Map
Figure 2 Site Plan and Areas of Concern
Figure 3 PCE in Soil Gas
APPENDICES
Appendix A Previous Environmental Investigations and Regulatory Documents (Excerpts) Appendix B DTSC Information Advisory Clean Imported Fill Material Fact Sheet Appendix C South Coast Air Quality Management District South Coast AQMD Rule Book, Rule 403, Fugitive Dust
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ACRONYMS AND ABBREVIATIONS
2016 Phase I ESA
Report
Phase I Environmental Site Assessment Report, The Scoular Company, 5355 East Airport Drive, Ontario, California 91761 dated August 18, 2016, prepared by Partner Engineering and Science, Inc. (Partner) 2016 Phase II Report Phase II Subsurface Investigation Report, 5355 East Airport Drive, Ontario, California 91761 dated August 16, 2016, prepared by Partner 2022 Phase I ESA
Report
Phase I Environmental Site Assessment Report, 5355 East Airport Drive Ontario, California 91761 dated January 31, 2022, prepared by Farallon Consulting, L.L.C. (Farallon)
2022 Phase I/II Report Phase I/Phase II Environmental Site Assessment Report, 5355 East Airport Drive, Ontario, California 91761 dated March 30, 2022, prepared by Farallon
2022 Additional
Subsurface
Investigation Report
Additional Subsurface Investigation Report, 5355 East Airport Drive, Ontario, California dated December 13, prepared by Farallon 2023 Soil Gas Report Soil Gas Investigation Report, 5355 East Airport Drive, Ontario, California dated February 14, 2023, prepared by Farallon ACM asbestos-containing material
AST aboveground storage tank
bgs below ground surface
CCR California Code of Regulations
COCs constituents of concern
Contractor the party appointed by Prologis, L.P. or by another party(ies) to conduct Site improvements or redevelopment
CREC controlled recognized environmental condition
cVOCs chlorinated volatile organic compounds
DTSC California Department of Toxic Substances Control
DTSC-SLs California-Modified Regional Screening Levels developed by the California Department of Toxic Substances Control Human and Ecological Risk Office in the Human Health Risk Assessment (HHRA) Note Number 3, DTSC-modified Screening Levels (DTSC-SLs) dated June 2020
Environmental
Professional
the engineer or environmental consultant appointed by Prologis, L.P. and/or the Contractor (the party appointed by Prologis, L.P. or by 3365
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another party(ies) to conduct Site improvements or redevelopment) to assist in monitoring environmental conditions or activities EPA RSLs U.S. Environmental Protection 2021 Agency Regional Screening Levels EPA U.S. Environmental Protection Agency
ESA Environmental Site Assessment
Farallon Farallon Consulting, L.L.C.
HASP Health and Safety Plan
HREC historical recognized environmental condition
mg/kg milligrams per kilogram
MMP Media Management Plan
Partner Partner Engineering and Science, Inc.
PID photoionization detector
potentially
contaminated soil
soils exhibiting visual and/or olfactory evidence of impacts, elevated photoionization detector readings, or other evidence of impacts Prologis Prologis, L.P.
Proposition 65 California Safe Drinking Water and Toxic Enforcement Act of 1986 Subject Property the property at 5355 East Airport Drive, Ontario, California TPHd total petroleum hydrocarbons as diesel-range organics TPHg total petroleum hydrocarbons as gasoline-range organics TPHmo total petroleum hydrocarbons as motor oil-range organics UST underground storage tank
ug/m3 micrograms per cubic meter
VOCs volatile organic compounds
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1.0 INTRODUCTION
Farallon Consulting, L.L.C. (Farallon) has prepared this Media Management Plan (MMP) on behalf of Prologis, L.P. (Prologis) for the property at 5355 East Airport Drive in Ontario, California (herein referred to as the Subject Property) (Figure 1). The purpose of this MMP is to provide protocols for managing confirmed and potentially contaminated media that may be encountered during future improvement activities involving subsurface work at the Subject Property.
According to the Prologis development team and a November 16, 2021 Preliminary Site Plan – Scheme 01, the Subject Property will be redeveloped with an approximately 250,000-square-foot (footprint) warehouse that will occupy the northern and central portions of the Subject Property.
This document has been organized into the following sections:
• Section 2, Site Description and Background, provides a description of the Subject Property and its historical use, the general site setting, regional geology and hydrogeology, and the Subject Property regulatory status.
• Section 3, Known Environmental Conditions, summarizes environmental investigations previously conducted at the Subject Property, the defining regulations applicable to the Subject Property, the constituents of concern (COCs), and the areas where COCs have been detected at or are presumed to be present at concentrations exceeding the defining regulations.
• Section 4, Media Management Plan, presents the details of this MMP, including the requirements for communication, health and safety, and reporting; and management of soil, groundwater, stormwater, and unanticipated subsurface features/conditions. • Section 5, Modifications to the Media Management Plan, presents the conditions under which modifications to this MMP may be required.
• Section 6, Scope, Representations, and Limitations, provides the details of these subjects under this MMP.
• Section 7, References, lists the documents cited in this MMP. 3367
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2.0 SITE DESCRIPTION AND BACKGROUND
This section provides a description of the Subject Property and its historical use, the general site setting, regional geology and hydrogeology, and the Subject Property regulatory status.
2.1 SITE DESCRIPTION AND HISTORICAL USE
The Subject Property consists of San Bernardino County Assessor’s Parcel Numbers 0238-052- 20-0000 (Eastern Parcel) and 0238-052-29-0000 (Western Parcel), totaling 14.2 acres of land.
According to previous environmental investigations for the Subject Property (described in Section
3.1), a review of historical information for the Subject Property suggested that it was primarily undeveloped through at least the late-1930s until being used for agricultural purposes between the late 1930s through the early 1970s. The Subject Property was developed as a grain processing facility in 1973. The Scoular Company (Scoular) and Verhoeven Grain Company (Verhoeven) have occupied the Subject Property since 2006 and 2008, respectively.
The Eastern Parcel is occupied by Verhoeven, a grain processing company, and contains grain storage silos, a grain mill area, and five buildings. An office and warehouse building, referred to as “Building A,” is located on the southern portion of the Subject Property. The warehouse portion on the northeastern side of Building A contains a service shop for the repair of machinery related to the grain mill. Wastes stored in this area include motor oil, hydraulic oil, and gear oil, primarily related to tractor and forklift operation. A maintenance and repair shop, referred to as “Building B,” is used for light tractor and forklift service. New and waste vehicle fluids are stored in a hazardous substance storage area on the southwestern interior border of Building B. Additional structures on the Eastern Parcel consist of a warehouse referred to as “Building C” on the northcentral portion, used for assorted storage; and two grain storage structures on the southeastern and southwestern portions of the parcel, referred to as Buildings D and E. The property is primarily asphalt-paved, with some gravel-paved areas on the western portion of the parcel. Access to the Subject Property is gained from East Airport Drive, south of the Subject Property.
The Western Parcel is occupied by Scoular, a corn storage and distribution facility. The Scoular portion of the Subject Property contains exterior grain storage, and an office trailer that contains a small hazardous substance storage area on secondary containment used for the storage of lubrication oils and greases for equipment.
A vehicle wash-down area is present on the northeastern portion of the Subject Property, and three to four septic systems are associated with the Subject Property: two or three on the Eastern Parcel, and one on the Western Parcel. The location of the septic system on the Western Parcel could not be determined from the records reviewed. At the time of Farallon’s Phase I Environmental Site Assessment activities (in 2022), a 499-gallon propane aboveground storage tank (AST), two 250- gallon diesel fuel ASTs, and a 220-gallon hydraulic oil AST were present on the Eastern Parcel.
Two 12,000-gallon “fuel-storage” underground storage tanks (USTs) formerly were located on the north-central portion of the Subject Property near the grain mill area. A 12,000-gallon diesel fuel 3368
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UST formerly was located southeast of Building C. The area west of Building B was identified as the former location of one or more additional USTs.
The locations of applicable Subject Property features are shown on Figure 2.
2.2 GENERAL SITE SETTING
The Subject Property is at an elevation of approximately 980 feet above mean sea level. The Subject Property topography slopes gently to the south. Regional topography generally is sloped to the south.
2.3 REGIONAL GEOLOGY AND HYDROGEOLOGY
The Subject Property is situated within the San Bernadino Valley of the Peninsular Ranges Geomorphic Province in Southern California. The Peninsular Range Province extends into lower California and is bounded by the Colorado Desert to the east, the Pacific Ocean to the west and the San Gabriel and San Bernardino mountains to the north. The San Bernardino Mountains are located approximately 7-miles north of the Subject Property.
According to the Phase II Subsurface Investigation Report, 5355 East Airport Drive, Ontario, California 91761 dated August 16, 2016 prepared by Partner, soil beneath the Site generally consists of very fine-grained silty sand from the surface to a depth of approximately 20 feet bgs (below ground surface) and transitions to very fine- to coarse-grained poorly graded sand between depths of 20 and 25 feet bgs. Groundwater was not encountered during Partner’s investigation.
Soil encountered during Farallon’s previous subsurface investigations was described as silty fine to medium sand to the total explored depth of 4 to 10 feet bgs, with an apparent coarse sand and gravel layer at a depth of 10 feet bgs (and as shallow as 5 feet bgs on the eastern portion of the Site at boring SB-2), and intermittent clayey sand to clay lenses approximately 1 foot thick at a depth of between 6 and 7 feet bgs (borings SVP-16 and SVP-19) and 10 to 11 feet bgs (borings SVP-12 and SVP-16). Groundwater was not encountered during drilling.
Site-specific groundwater direction and depth information was not available in the records reviewed. Based on information obtained from the previous reports and California State Water Resources Control Board (2022) GeoTracker database and topographic interpretation, groundwater beneath the Site is anticipated to be encountered at a depth of approximately 250 feet bgs, and is estimated to flow to the south.
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3.0 KNOWN ENVIRONMENTAL CONDITIONS
This section summarizes environmental investigations previously conducted at the Subject Property, the defining regulations applicable to the Subject Property, the COCs and the areas where COCs have been detected or are presumed to be present at concentrations exceeding the defining regulations.
3.1 PREVIOUS ENVIRONMENTAL INVESTIGATIONS
This section summarizes the most recent and pertinent documents related to environmental assessments previously prepared for the Subject Property, including the following (pertinent portions of the reports attached in Appendix A):
• Phase I Environmental Site Assessment Report, The Scoular Company, 5355 East Airport Drive, Ontario, California 91761 dated August 18, 2016 prepared by Partner Engineering and Science, Inc. (Partner) (2016 Phase I ESA Report);
• Phase II Subsurface Investigation Report, 5355 East Airport Drive, Ontario, California 91761 dated August 16, 2016 prepared by Partner (2016 Phase II Report); • Phase I Environmental Site Assessment Report, 5355 East Airport Drive Ontario, California 91761 dated January 31, 2022, prepared by Farallon (2022 Phase I ESA Report); • Phase I/Phase II Environmental Site Assessment Report, 5355 East Airport Drive, Ontario, California 91761 dated March 30, 2022, prepared by Farallon (2022 Farallon Phase I/II Report);
• Subsurface Investigation Report, 5355 East Airport Drive, Ontario, California dated December 13, 2022, prepared by Farallon (2022 Subsurface Investigation Report); and • Soil Gas Investigation Report, 5355 East Airport Drive, Ontario, California dated February 14, 2023, prepared by Farallon (2023 Soil Gas Report).
The 2016 Phase I ESA Report findings identified four recognized environmental conditions (RECs), two historical RECs (HRECs), and four environmental issues. The four RECs relate to the status of a potential unknown UST; surficial degradation and staining of asphalt around two 250-gallon diesel fuel ASTs; staining and historical use of petroleum products and hazardous materials in maintenance areas within Buildings A and B; and potential impacts associated with the vehicle wash-down area and drainage system. The two HRECs are related to the following: the two former 12,000-gallon diesel USTs, which were removed in 1989 and received a No Further Action (NFA) determination; and one former 12,000-gallon diesel UST and associated dispenser, which were removed in 2002 and also received an NFA determination. The four environmental issues identified relate to unknown locations of two septic systems; grain processing equipment and subsurface grain conveyance systems requiring lubrication oil; railroad spurs extending onto the Subject Property that may have impacted the Subject Property with pesticides, herbicides, and oils; and potential asbestos-containing materials associated with the age of the buildings. 3370
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According to the Partner 2016 Phase II Report, 26 borings were advanced to depths between 1 and 25 feet bgs for the collection of soil and/or soil gas samples. Analytical results of soil gas samples indicated detections of volatile organic compounds (VOCs), including tetrachloroethene (PCE), trichloroethene (TCE), toluene, ethylbenzene, and xylenes. Based on tabulated data, the concentrations of these detectable results were less than the residential and commercial/industrial calculated soil gas screening levels (SGSLs) at the time of the report beneath and west of Building B; however, the concentrations of PCE and ethylbenzene exceed current commercial/industrial calculated SGSLs, as discussed in Section 3.3.
RECs identified in the Farallon 2022 Phase I ESA Report included the use of hazardous materials and a known release of VOCs at Building B, possible releases to the Building B septic system, and two former petroleum USTs at the grain mill, reported as closed by regulatory authorities with impacts left in-place. HRECs identified during the 2022 Phase I ESA included a former UST area located east of Building B (investigated in 2016 with no petroleum releases detected), and a 12,000-gallon UST and fuel dispenser located southeast of Building C (closed with regulatory oversight in 2002 with minor petroleum impacts noted in backfilled soil). The 2022 Phase I ESA Report also identified the following de minimis conditions: a vehicle wash-down area on the northeastern portion of the Subject Property, reportedly used for washing truck exteriors; two or three septic systems that received only domestic water; petroleum ASTs with secondary containment and/or no evidence of leaking; rail spurs within or along the northern property boundary; transformers with no evidence of leaking; underground grain conveyance systems; and a former brine pond located on or just north of the Subject Property that was reportedly decommissioned in 1998 with no residual pH impacts.
As part of its Phase I/II due diligence investigation, Farallon conducted soil and soil gas sampling at the Subject property in March 2022, focusing on assessing former UST areas, septic systems, and the footprint of a proposed building to evaluate the potential for vapor intrusion. The scope of work for the Phase II Environmental Site Assessment portion of the investigation included advancement of 12 borings, installation of two subslab gas probes, and installation of 10 temporary soil gas probe locations with single- or multi-depth nested gas points for collection of soil and soil gas samples. Petroleum hydrocarbons and VOCs were not detected at a concentration exceeding laboratory reporting limits in the soil samples. According to soil gas data, PCE was present at concentrations exceeding calculated industrial screening levels using the 0.03 attenuation factor in soil gas samples collected in the eastern portion of the Subject Property (proximate to Building B, former diesel UST, and vehicle washdown area with sump), and in the north-central portion of the Subject Property (proximate to two former USTs). Low concentrations of naturally occurring metals, including barium, cadmium, cobalt, chromium, copper, nickel, lead, vanadium, and zinc, were detected in two soil samples submitted for analysis; these concentrations were considerably less than screening levels.
Farallon conducted additional soil gas investigations in September and December 2022 to delineate soil gas in the footprint for the proposed building and assist with design mitigation measures for PCE in soil gas that may impact indoor air. PCE was not detected at a concentration exceeding the laboratory reporting limit in September. Although PCE was detected in December, 3371
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the maximum concentration of 60.2 micrograms per cubic meter (μg/m3) proximate to Building B did not exceed the calculated industrial screening level of 67 μg/m3. The previously detected maximum concentration near this location was 247 μg/m3 (SVP-7, March 11, 2022).
Although PCE has been documented in soil gas in the vicinity of Building B at concentrations exceeding calculated screening levels, these concentrations could not be confirmed with additional sampling rounds. Further, it is anticipated that shallow soils at the Subject Property will be reworked during redevelopment activities, potentially mitigating the potential for vapor intrusion conditions to exist.
Farallon recommended preparation of a MMP for use during redevelopment to address any unexpected impacts to soil associated with historical activities, and to address any issues related to the former brine pond, underground grain conveyance systems, septic systems, and former USTs at the Subject Property.
The locations of the features and findings discussed above are depicted on Figure 2. Pertinent portions of previous environmental investigation documents are provided in Appendix A.
3.2 DEFINING REGULATIONS
The published regulatory guidelines considered applicable to the Subject Property for evaluating COCs in soil are the June 2020 California-Modified Regional Screening Levels for soil developed by the California Department of Toxic Substances Control Office of Human and Ecological Risk modified in May 2022 (DTSC-SLs) or the U.S. Environmental Protection Agency (EPA) November 2022 Regional Screening Levels (EPA RSLs) if a DTSC-SL has not been developed for a COC.
The disposition of soil removed from the Subject Property should be performed in accordance with the procedures discussed in Section 4.4, Soil Management.
3.3 AREAS OF CONCERN AND CONSTITUENTS OF CONCERN EXCEEDING
DEFINING REGULATIONS
Soil gas and subslab soil gas data indicate that soil gas beneath the slab at Building B, proximate to former UST areas and to the vehicle wash down area with sump, may contain PCE approaching or exceeding the calculated SGSL of 67 μg/m3 using the 0.03 attenuation factor for industrial properties. PCE also was detected throughout the central portion of the Subject Property at concentrations less than the calculated industrial SGSL in the shallow zones assessed. One elevated concentration of PCE was detected at a depth of 10 feet bgs, which was collected on March 11, 2022 from the vicinity of the two former 12,000-gallon USTs north of the grain mill area; the shallow soil gas sample collected from this boring at 4 feet bgs did not contain PCE above the SGSL during the March or December 2022 sampling events. Soil gas data are presented on Figure 3.
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Additionally, based on Farallon’s review of data in the Partner 2016 Phase II Report, ethylbenzene was detected in soil gas at a concentration exceeding the EPA RSL of 160 µg/m3 in a sample collected in the vicinity of Building B on the eastern portion of the Subject Property at a depth of 5 feet bgs. The presence of ethylbenzene in soil gas is likely related to incidental releases associated with the industrial use and appears to be isolated in nature.
Due to the historical USTs, septic systems, and underground features associated with the Subject Property, and use of petroleum products and hazardous materials, VOCs related to automotive fluids and total petroleum hydrocarbons (TPH) as gasoline range organics (TPHg), diesel-range organics (TPHd), and/or motor oil-range organics (TPHmo) may be present at the Subject Property.
Additionally, due to the current and/or historical presence of railroad tracks, a brine pond and a subsurface grain conveyance system, the potential exists for identification of additional areas of soil impacts and/or unknown subgrade features. Section 4.0 describes best practices for handling media and addressing undocumented conditions during redevelopment at the Subject Property. 3373
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4.0 MEDIA MANAGEMENT PLAN
This section presents the details of this MMP. This MMP was developed to provide protocols for managing media that are known to be or potentially are chemically impacted that may be encountered during future improvements or redevelopment activities conducted at the Subject Property. This MMP is applicable to all earthwork activities performed at the Subject Property.
Elements of this MMP include:
• Project contacts;
• Communication requirements;
• Health and safety requirements;
• Soil management;
• Groundwater management;
• Stormwater management;
• Unanticipated subsurface conditions; and
• MMP reporting requirements.
The objective of this MMP is to minimize risk to human health, and to ensure protection of the environment during activities associated with improvements or redevelopment of the Subject Property. Before any earthwork activities commence at the Subject Property, this MMP should be made available to workers to address possible environmental risks associated with chemically impacted soil or unanticipated subsurface conditions.
4.1 PROJECT CONTACTS
The personnel associated with the Subject Property investigation and development of this MMP are provided in the table below. When communication pertaining to this MMP is warranted, Prologis will be contacted first.
TITLE
NAME CONTACT INFORMATION
Prologis Environmental Contact
Gavin Polite Fisco
Office: (415) 733-9410
Email: [email protected]
Prologis Development Contact
John Carter
Office: (562) 345-9237
Email: [email protected]
Farallon Project Manager
Kathy Lehnus
Mobile: (657) 247-1304
Email: [email protected]
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4.2 COMMUNICATION REQUIREMENTS
Chemical- and petroleum-impacted soil encountered under anticipated conditions during subsurface activities conducted at the Subject Property should be managed in accordance with the procedures described in this MMP. In the event unanticipated conditions are encountered, earthwork should be stopped, and Prologis will be notified within 24 hours of discovery of such conditions; Prologis will subsequently notify the Environmental Professional. Any reuse of potentially contaminated soil to backfill excavations on the Subject Property requires prior laboratory analysis, as outlined in Section 4.4.5, On-Site Reuse of Soil and Off-Site Disposal of Soil, and subsequent written approval by Prologis. Reporting requirements related to earthwork activities are described in Section 4.8, Media Management Plan Reporting Requirements.
4.3 HEALTH AND SAFETY REQUIREMENTS
The Contractor or the Environmental Professional is responsible for preparing a Health and Safety Plan (HASP) for all tasks performed that require subsurface work at the Subject Property, with the exclusion of general maintenance activities (e.g., landscaping). The HASP will provide the following information:
• The health and safety considerations for the specific COCs detected or potentially present at the Subject Property;
• Personal protective equipment and monitoring requirements; and • The physical hazards associated with the planned tasks.
The HASP will detail all planned construction activities and will describe standard safety precautions (e.g., protective gear for workers, proper soil handling techniques, etc). The HASP will describe the minimum safety measures to be implemented at the Subject Property during all activities. The Contractor or the Environmental Professional is responsible for ensuring that the safety precautions detailed in the HASP are implemented and monitored during all activities at the Subject Property.
The Contractor and the Environmental Professional will abide by all applicable federal, state, and local regulations and codes relating to health and safety and will adhere to all California Occupational Safety and Health Administration regulations contained in Title 8 of the California Code of Regulations (8 CCR), as they apply to the Subject Property activities. Applicable regulations may include but are not limited to the following:
• Injury and Illness Prevention Program (8 CCR 1509 and 3202); • Hazardous Waste Operations and Emergency Response (8 CCR 5192); • Hazard Communication (8 CCR 5194);
• Personal Protective Equipment (8 CCR 10);
• Respiratory Protective Equipment (8 CCR 5144);
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• Control of Noise Exposure (8 CCR 5095 through 5100);
• Excavations (8 CCR 1503 and 1539 through 1547);
• Fire Prevention and Suppression Procedures (8 CCR 4848); • Portable Fire Extinguishers (8 CCR 6151);
• Cleaning, Repairing, Servicing, and Adjusting Prime Movers, Machinery, and Equipment Lockout/Tagout (8 CCR 3314); and
• Medical Services and First Aid (8 CCR 3400).
Detected and potential chemicals in soil at the Subject Property have been identified under the California Safe Drinking Water and Toxic Enforcement Act of 1986 (Proposition 65) and are known to cause cancer and reproductive toxicity. Proposition 65 warnings are required if the estimated exposure to a person exceeds the California Office of Environmental Health Hazard Assessment “safe harbor level.” The safe harbor level terms for carcinogens and chemicals with reproductive end points are “no significant risk levels” and “maximum allowable dose levels,” respectively. The Contractor or Environmental Professional is responsible for conducting an independent evaluation to determine the need for Proposition 65 notifications for their workers.
If physical indications of potential contamination in soil (e.g., odor, staining) are observed during earthwork, a photoionization detector (PID) should be used to monitor air and soil for VOCs in the area where work is performed. Action levels will be established in the HASP by the Contractor or Environmental Professional. In accordance with South Coast Air Quality Management District Rule 1166, any soils exhibiting VOC concentrations exceeding 50 parts per million, as measured using a PID, will be treated as potentially contaminated soil and managed in accordance with the procedures described in this MMP.
Any equipment that has been in contact with known or potentially contaminated soil or groundwater during work conducted at the Subject Property requires decontamination before being used at another location at the Subject Property or before being removed from the Subject Property.
It is recommended that dedicated equipment be used for earthwork activities conducted at the Subject Property to minimize decontamination procedures. The exterior of any vehicle that has been exposed to potentially contaminated soil requires decontamination using brooms or brushes to remove loose soil. If soil remains after brushing, the contaminated surfaces should be washed.
4.4 SOIL MANAGEMENT
This section describes the procedures for handling soil during earthwork activities conducted at the Subject Property. These procedures do not apply to routine maintenance activities such as landscaping.
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4.4.1 Site Access
A fence, k-rail, or other appropriate means should be used to surround and limit access to construction areas or soil stockpiles where potentially contaminated soil is exposed.
4.4.2 Soil Excavation
A HASP prepared by the Contractor or the Environmental Professional is required for all earthwork activities conducted at the Subject Property, as specified in Section 4.3, Health and Safety Requirements. If contaminated soil is brought to the surface by grading, excavation, or trenching, provisions stipulated in California State and/or federal law will be followed. Any stockpiling or on-site reuse of excavated soil must be performed in accordance with the procedures described in this section.
4.4.3 Soil Confirmation Sampling
Soil confirmation sampling is defined as collecting soil samples at the limits of an excavation for laboratory analysis. Soil confirmation sampling typically is performed to document removal of chemically impacted soil to a specific cleanup level.
4.4.4 Soil Stockpiling
Stockpiled soil originating at the Subject Property that is suspected to be contaminated based on physical indications (e.g., odor, staining) or elevated PID readings is required to be covered at the end of each workday. Practical considerations (e.g., the size of the stockpile, weather conditions, the length of time the stockpile will remain) will be used in determining the appropriate covering method. Soil in the stockpile exhibiting physical indications (e.g., odor, staining) or elevated PID readings, will be presumed to be chemically impacted, and therefore the stockpile will be placed on an impermeable layer (e.g., Visqueen plastic sheeting), fenced, and otherwise protected and sampled as noted in Section 4.4.5, On-Site Reuse of Soil and Off-Site Disposal of Soil. Stormwater management regarding sediment runoff will be consistent with local, state, and federal rules and regulations, including those set forth by San Bernardino County. Additional measures must be taken to prevent runoff from entering storm drains leading to local creeks, rivers, and other water bodies, as outlined in Section 4.6, Stormwater Management.
4.4.5 On-Site Reuse of Soil and Off-Site Disposal of Soil Soil stockpiled on the Subject Property that was noted with visual and/or olfactory impacts or elevated PID readings requires laboratory analysis prior to reuse at the Subject Property or off-site disposal. The frequency and specific laboratory analyses to be conducted will be established by the Environmental Professional on a case-by-case basis and approved by Prologis.
The laboratory analyses will likely include, but not be limited to, VOCs by EPA Method 8260 and TPHg, TPHd, and TPHmo by EPA Method 8015. Samples will be additionally analyzed for any additional constituents requested by the receiving facility, if applicable. Following analysis, if COCs are detected at concentrations less than the DTSC-SLs and EPA RSLs, the soil may be reused on the Subject Property at the discretion of the Environmental Professional. Soil containing 3377
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COCs at concentrations exceeding DTSC-SLs and EPA RSLs will be disposed of at a facility permitted to receive the soil for disposal.
4.4.6 Off-Site Reuse of Soil
Written approval from Prologis is required for any off-site reuse of soil generated from earthwork activities or excavated at the Subject Property. Soil intended for off-site reuse must be sampled and meet the characterization requirements outlined in Section 4.4.5, On-Site Reuse of Soil and Off-Site Disposal of Soil. The sampling frequency for soil being removed from the Subject Property will be determined by the Environmental Professional on a case-by-case basis, and by the receiving facility.
4.4.7 Imported Fill Material
Written approval from Prologis is required for any importation of fill material to the Subject Property. All imported fill is required to meet the minimum profile requirements outlined in the Department of Toxic Substances Control Information Advisory, Clean Imported Fill Material dated October 2001 and provided in Appendix B. The origin of and any analytical data for imported fill material must be provided to Prologis for review and approval prior to importation of fill material.
4.4.8 Dust Control
Implementation of dust-control measures to minimize dust generation is required during earthwork activities conducted at the Subject Property. Basic dust-control measures described in the Rule 403 Dust Control Information dated May 7, 1976, amended June 3, 2005, prepared by the South Coast Air Quality Management District, must be followed. It is the responsibility of the Contractor to ensure that the presence of dust is minimized during construction activities, and that all applicable local and state dust-control requirements are met. Should construction activities result in observable dust at the boundary of the Subject Property, enhanced control measures will be performed by the Contractor.
4.5 GROUNDWATER MANAGEMENT
Because the depth to groundwater is approximately 250 feet bgs, it is unlikely that groundwater will be encountered during foreseeable future development at the Subject Property. If groundwater is encountered, it should be presumed to be contaminated and managed accordingly unless analytical testing determines otherwise. Any contact, suspected contact, or proposed contact with the water table, must be reported to Prologis, which will subsequently report it to the Environmental Professional.
4.6 STORMWATER MANAGEMENT
Stormwater management regarding sediment runoff will be consistent with local, state, and federal rules and regulations. As outlined in Section 4.4.4, Soil Stockpiling, applicable stormwater pollution control measures will be implemented to prevent runoff of sediment in stormwater from flowing to nearby storm drains and from entering local creeks, rivers, and other water bodies. The 3378
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Contractor is required to obtain all necessary stormwater permits, and to implement best management practices during construction activities conducted at the Subject Property.
4.7 UNANTICIPATED SUBSURFACE CONDITIONS
It is unknown whether the locations of all utilities at the Subject Property have been identified and marked. Unknown historical features or other structures also may be present at the Subject Property and may be encountered during construction activities. Unanticipated subsurface features or conditions that may be present at the Subject Property include:
• USTs;
• Concrete vaults or slabs;
• Septic systems;
• Former oil-water separators;
• Underground piping containing chemicals;
• Buried brine pond;
• Underground equipment related to grain conveyance; and • Chemically impacted soil.
If the Contractor encounters an unanticipated condition, the Contractor will stop work, secure the work area, and notify Prologis within 24 hours of discovery of the condition. Prologis will identify and contact the appropriate entity to respond to the unanticipated condition. The procedures that will be followed in the event that an unanticipated subsurface structure is discovered are summarized below:
• A licensed Contractor or an Environmental Professional will remove and containerize any observed residual liquid, sludge, or sediment in the subsurface structure, and will characterize the residual material(s) as required by the waste-receiving facility(ies); • The Contractor will remove the subsurface structure in compliance with applicable laws and regulations, and under permit from and oversight by the applicable regulatory agency, if required;
• Soil removal actions will be performed in accordance with the procedures outlined in this MMP; and
• The area will be cleared after any required regulatory authorization has been obtained from the permitting agency, so work may proceed.
The Contractor will ensure that the health and safety requirements detailed in Section 4.3, Health and Safety Requirements, are met at all times, which will prepare workers for encountering unanticipated conditions during construction activities. 3379
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4.8 MEDIA MANAGEMENT PLAN REPORTING REQUIREMENTS
Any earthwork that involves chemically impacted soil, intersects groundwater, or leads to the discovery of any unanticipated condition will be documented and reported to Prologis, which will subsequently report it to the Environmental Professional. After MMP implementation activities are conducted, the Environmental Professional may document activities and prepare a report, if requested by Prologis. Minimum reporting requirements will consist of tabulated analytical results compared to unrestricted land use objectives, scaled site plans depicting sampling locations, disposal manifests, and descriptions of methods used. All activities involving removal of chemically impacted soil will be performed under the management of a California State Professional Geologist or Professional Engineer.
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5.0 MODIFICATIONS TO THE MEDIA MANAGEMENT PLAN
This section presents the conditions under which modifications to this MMP may be required.
This MMP has been developed based on currently known environmental conditions at the Subject Property and current applicable regulations. This MMP may require modification for reasons including but not limited to the following:
• A change in site use;
• Receipt of additional information pertaining to environmental conditions; • Intrusive activity not addressed by this MMP;
• Updated chemical toxicity information for contaminants detected at the Subject Property; and
• New legal or regulatory requirements applicable to the Subject Property. 3381
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6.0 SCOPE, REPRESENTATIONS, AND LIMITATIONS
This section discusses the scope, representations, and limitations of this MMP.
This MMP was developed exclusively to address the chemical constituents identified or potentially present during environmental investigations of the Subject Property, as summarized in Section 3.0, Known Environmental Conditions. Other chemicals or media that may be encountered or generated during construction projects (e.g., demolition and construction debris, asphalt, concrete, asbestos-containing materials, lead-based paint) are not addressed in this MMP. If hazardous construction materials are encountered or generated, it is the responsibility of the Contractor to ensure the proper handling and disposal of such materials.
Current site conditions, laws, policies, and regulations were used to develop this MMP. No representation is made to any present or future developer or owner of the Subject Property or portions of the Subject Property with respect to future site conditions, other than those specifically identified in this document.
This MMP was prepared for the sole use of Prologis and its authorized contractors. Unless specifically agreed to in writing, all other such use is unauthorized. Any use or interpretation of or reliance on this MMP is at the sole risk of the unauthorized user, for which Farallon will bear no liability to any party, including any present or future developer, owner, Contractor, agent, occupant, consultant, Environmental Professional, or any other party owning or visiting the Subject Property or portions of the Subject Property based on or arising out of implementation of this MMP. It is expressly understood that although this MMP is intended to provide guidance and establish a framework for management of residual chemicals at the Subject Property to protect human health and the environment, it in no way creates any warranties or obligations by Farallon as to the implementation, adequacy, or success of protective measures under this MMP. 3382
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7.0 REFERENCES
California Department of Toxic Substances Control (DTSC). 2001. Information Advisory, Clean Imported Fill Material. October.
———. 2020. Human and Ecological Risk Office (HERO). Human Health Risk Assessment (HHRA) Note Number 3, DTSC-modified Screening Levels (DTSC-SLs). June.
Farallon Consulting, L.L.C. 2021. Phase I Environmental Site Assessment Report, 5355 East Airport Drive Ontario, California 91761. Prepared for Prologis, L.P. January 31. ———. 2022. Phase I/Phase II Environmental Site Assessment Report, 5355 East Airport Drive, Ontario, California 91761. Prepared for Prologis, L.P. March 30. ———. 2022. Subsurface Investigation Report, 5355 East Airport Drive, Ontario, California.
Prepared for Prologis, L.P. December 13, 2022.
———. 2023. Soil Gas Investigation Report, 5355 East Airport Drive, Ontario, California.
Prepared for Prologis, L.P. February 14.
Partner Engineering and Science, Inc. 2016a. Phase II Subsurface Investigation Report, 5355 East Airport Drive, Ontario, California 91761. Prepared for Prologis, L.P. August 16. ———. 2016b. Phase I Environmental Site Assessment Report, The Scoular Company, 5355 East Airport Drive, Ontario, California 91761. Prepared for Prologis, L.P. August 18.
U.S. Environmental Protection Agency (EPA). 2022. Regional Screening Levels (RSLs) – Generic Tables <Regional Screening Levels (RSLs) - Generic Tables | US EPA>. (May.) 3383
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FIGURES
MEDIA MANAGEMENT PLAN
5355 East Airport Drive
Ontario, California
Farallon PN: 1071-080 (Task 2)
3384
Checked By: PS Disc Reference:
FARALLON PN: 1071-080-002
³ SITE VICINITY MAP
5355 EAST AIRPORT DRIVE
ONTARIO, CALIFORNIA
Washington
Issaquah | Bellingham | Seattle
Oregon
Portland | Baker City
California
CONSULTING Oakland | Irvine
Your Challenges. Our Priority. | farallonconsulting.com Farallon
Drawn By: lmurock Date: 10/5/2022
Q:\Projects\1071 Prologis\080 2021 SoCal Due Diligence II\002 Airport Dr\Mapfiles\SSI_2022-10\Figure-01_SiteVicinity.mxd FIGURE 1
REFERENCE: 7.5 MINUTE USGS QUADRANGLE GUASTI, CALIFORNIA, DATED 2013 0 5,000
SCALE IN FEET
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Checked By: KL Disc Reference:
FIGURE 2
SITE PLAN AND AREAS OF CONCERN
5355 EAST AIRPORT DRIVE
ONTARIO, CALIFORNIA
Your Challenges. Our Priority. | farallonconsulting.com Farallon
0 100
SCALE IN FEET
Washington
Issaquah | Bellingham | Seattle
Oregon
Portland | Baker City
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Drawn By: lmurock Date: 2/17/2023
Q:\Projects\1071 Prologis\080 2021 SoCal Due Diligence II\002 Airport Dr\Mapfiles\MMP_2023-02\Figure-02_SitePlan_AOC.mxd FARALLON PN: 1071-080-002
LEGEND
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(ESTIMATED)
SV-24
7/29/2016|5.0'|<100
SV-22
7/29/2016|5.0'|<100 SV-26
7/29/2016|5.0'|<100
SV-19
7/29/2016|5.0'|<100
SV-23
7/29/2016|5.0'|<100
B4
7/21/2016|5.0'|<350
SVP-9
3/11/2022|4.0'|24
SV-25
7/29/2016|5.0'|<100
B7
7/21/2016|5.0'|<6.9
B3
7/21/2016|5.0'|<350
SV-13
7/29/2016|5.0'|<100
SV-21
7/29/2016|5.0'|<100
B8
7/21/2016|5.0'|44
SVP-18
9/20/2022|4.0'|<25
9/20/2022|10.0'|<25 SVP-25
12/16/2022|4.0'|13.0
B5
7/21/2016|5.0'|100
SV-17
7/29/2016|5.0'|<100
SVP-20
12/16/2022|4.0'|<1.0
SVP-15
9/20/2022|4.0'|<25
9/20/2022|10.0'|<25
SVP-19
9/20/2022|4.0'|<25
9/20/2022|10.0'|<25
SVP-8
3/11/2022|4.0'|232
SS-2
3/11/2022|0.5'|194
SVP-2
3/11/2022|4.0'|27 SVP-3
3/11/2022|4.0'|<20
SV-20
7/29/2016|5.0'|<100
SVP-24
12/16/2022|4.0'|5.7 SVP-7
3/11/2022|4.0'|247 B6
7/21/2016|5.0'|68 SV-16
7/29/2016|4.0'|180
SVP-26
12/16/2022|4.0'|60.2
SV-14
7/29/2016|4.0'|230
SS-1
3/11/2022|0.5'|220
SVP-5
3/11/2022|4.0'|70
3/11/2022|10.0'|234 SV-15
7/29/2016|5.0'|120
SVP-23
12/16/2022|4.0'|<1.0
SVP-10
3/11/2022|4.0'|31
3/11/2022|8.0'|63
SVP-22
12/16/2022|4.0'|2.6
SV-18
7/29/2016|5.0'|<100
SVP-6
3/11/2022|4.0'|97
3/11/2022|8.0'|34
SVP-14
9/20/2022|4.0'|<25
9/20/2022|10.0'|<25 SVP-21
12/16/2022|4.0'|3.5
SVP-4
3/11/2022|4.0'|62
SVP-16
9/20/2022|4.0'|<25
9/20/2022|10.0'|<25
SVP-1
3/11/2022|4.0'|31
3/11/2022|10.0'|157
SVP-17
9/20/2022|4.0'|<25
9/20/2022|10.0'|<25
CONSULTING
Checked By: KL Disc Reference:
FIGURE 3
PCE IN SOIL GAS
5355 EAST AIRPORT DRIVE
ONTARIO, CALIFORNIA
Your Challenges. Our Priority. | farallonconsulting.com Farallon
Washington
Issaquah | Bellingham | Seattle
Oregon
Portland | Baker City
California
Oakland | Irvine
Drawn By: lmurock Date: 2/1/2023
Q:\Projects\1071 Prologis\080 2021 SoCal Due Diligence II\002 Airport Dr\Mapfiles\SSI_2022-12\Figure-03_SoilGas-PCE.mxd ALL LOCATIONS ARE APPROXIMATE. FARALLON PN: 1071-080-004 FIGURES WERE PRODUCED IN COLOR.
GRAYSCALE COPIES MAY NOT
REPRODUCE ALL ORIGINAL INFORMATION.
³ 0 60
SCALE IN FEET
LEGEND
R") SOIL GAS PROBE (FARALLON, DECEMBER 2022)
R"" SOIL GAS PROBE (FARALLON, SEPTEMBER 2022)
R"" SOIL GAS PROBE (FARALLON, MARCH 2022)
!( SUBSLAB SOIL GAS PROBE (FARALLON, MARCH 2022)
!P SOIL GAS PROBE (PARTNER, 2016)
")T TRANSFORMER
FORMER SITE FEATURE
OBSERVED SEPTIC TANK LOCATION
GROUND-PENETRATING RADAR SCAN AREA
PROPOSED BUILDING FOOTPRINT
SITE BOUNDARY
SAN BERNARDINO COUNTY PARCEL BOUNDARY
AST =
GPR =
UST =
GPR SURVEY AREA - 2022 (NO UST FOUND)
ABOVEGROUND STORAGE TANK
GROUND-PENETRATING RADAR
UNDERGROUND STORAGE TANK
NOTES:
SAMPLE DATE, DEPTH, AND ANALYTICAL RESULTS AS:
SAMPLE DATE | SAMPLE DEPTH IN FEET BELOW GROUND SURFACE | PCE SOIL GAS ANALYTICAL RESULTS IN MICROGRAMS PER CUBIC METER.
BOLD =
< =
PCE =
DENOTES CONCENTRATIONS THAT EXCEED THE COMMERCIAL
SUBSLAB/SOIL GAS VAPOR INTRUSION ENVIRONMENTAL
SCREENING LEVEL.
DENOTES ANALYTE NOT DETECTED AT OR EXCEEDING THE
LISTED REPORTING LIMIT.
TETRACHLOROETHENE
3387
P:\1071 Prologis\1071080 2021 SoCal Due Diligence II\002 5355 E Airport Dr\Deliverables\2023 MMP\2022.02.23_5355E.AirportDr_Ontario_Media Management Plan_Farallon.docx
APPENDIX A
PREVIOUS ENVIRONMENTAL INVESTIGATIONS (EXPERPTS)
MEDIA MANAGEMENT PLAN
5355 East Airplane Drive
Ontario, California
Farallon PN: 1071-080 (Task 2)
3388
Engineers who understand your business
PHASE II SUBSURFACE
INVESTIGATION REPORT
5355 East Airport Drive
Ontario, California 91761
August 16, 2016
Partner Project Number: 16-163550.2
Prepared for:
Prologis
Pier 1, Bay 1
San Francisco, California 94111
3389
Table 1: Summary of Investigation Scope
5355 E. Airport Drive
Ontario, California 91761
Partner Project Number 16-163550.2
August 2016
Boring
Identification Location
Terminal
Depth
(feet bgs)
Matrix
Sampled
Sampling
Depths*
(feet bgs)
Target Analytes
B1 East of ASTs 1 Soil 1 TPH-cc, VOCs
B2
West of Hazardous Waste
Storage in Building B
1 Soil 1 TPH-cc, VOCs
Soil Gas 5 VOCs
Soil
5, 10, 15 ,
20, 25
TPH-cc, VOCs
Soil Gas 5 VOCs
Soil 5, 10 , 15, 20 TPH-cc, VOCs
Soil Gas 5 VOCs
Soil
5, 10, 15 ,
20, 25
TPH-cc, VOCs
Soil Gas 5 VOCs
Soil
5, 10 , 15,
20, 25
TPH-cc, VOCs
Soil Gas 5 VOCs
Soil 5, 10 , 15 TPH-cc, VOCs
Soil Gas 5 VOCs
Soil 5, 10 , 15 TPH-cc, VOCs
B9
North-Central Interior of
Building A Maintenance Area
1 Soil 1 TPH-cc, VOCs
B10 East of Conveyor Belt 1 Soil 1 TPH-cc, VOCs
B11
West-Central Area of Vehicle
Wash Down Area
1 Soil 1 TPH-cc, VOCs
B12
Southeast Area of Railroad
Spur
1 Soil 1 TPH-cc, VOCs
SV-13 Southeast of Former USTs 5 Soil Gas 5 VOCs
SV-14 Northeast of Former USTs 4** Soil Gas 4 VOCs
SV-15
North-Central Interior of
Building B Maintenance Area
5 Soil Gas 5 VOCs
SV-16 Central Interior of Building B 4** Soil Gas 5 VOCs SV-17
Northeast of Hazardous Waste
Storage in Building B 5 Soil Gas 5 VOCs
SV-18
East-Central Area of Vehicle
Wash Down Area
5 Soil Gas 5 VOCs
SV-19 Southeast of ASTs 5 Soil Gas 5 VOCs
SV-20 Northwest of Septic System 5 Soil Gas 5 VOCs
SV-21 West of Septic Septic System 5 Soil Gas 5 VOCs
SV-22
West-Central Exterior Area of
Building A
5 Soil Gas 5 VOCs
SV-23
Northeast Interior Area of
Building A
5 Soil Gas 5 VOCs
SV-24
Southeast Interior Area of
Building A
5 Soil Gas 5 VOCs
SV-25 Northwest Interior of Maintenance
Area in Building A 5 Soil Gas 5 VOCs
SV-26
Southeast Interior of Maintenance Area in
Building A; West of Hazardous Waste
Storage
5 Soil Gas 5 VOCs
Notes:
25 B7 East of Septic System 15
B8 Northwest of Septic System 15
AST =aboveground storage tank
UST = underground storage tank
bgs = below ground surface
B3 Southwest of Former USTs 25
B4 West of Former USTs 20**
*Depths in bold analyzed for carbon chain total petroleum hydrocarbons (TPH-cc) in accordance with United States Environmental Protection Agency (EPA) Method 8015M. Depths in italics analyzed for volatile organic compounds (VOCs) in accordance with EPA Method 8260B (soil) or EPA Method TO-15 (soil gas).
**Refusal encountered at the terminal depth
B5 East of Former USTs 25
B6 North of Former USTs
3390
Table 2: Soil Sample TPH-cc Laboratory Results
5355 E. Airport Drive
Ontario, California 91761
Partner Project Number 16-163550.2
August 2016
EPA Method
Units
Analyte Maximum SSL B1-1 B2-1 B3-15 B4-10 B5-15 B6-10 B7-10 B8-10 B9-1 B10-1 B11-1 B12-1 TPH-g 1,000 < 10 < 10 < 10 < 10 < 10 < 10 < 10 < 10 < 10 < 10 < 10 < 10TPH-d 10,000 < 10 < 10 < 10 < 10 < 10 < 10 < 10 < 10 < 10 < 10 < 10 < 10 TPH-o 50,000 < 10 < 10 < 10 < 10 < 10 < 10 < 10 < 10 < 10 < 10 < 10 < 10 Notes:TPH-cc = carbon chain total petroleum hydrocarbonsEPA = United States Environmental Protection AgencyTPH-g = total petroleum hydrocarbons as gasolineTPH-d = total petroleum hydrocarbons as dieselTPH-o = total petroleum hydrocarbons as oilmg/kg = milligrams per kilogram< = not detected above indicated laboratory Reporting Limit (RL)SSLs = Soil-screening levels (Los Angeles Regional Water Quality Control Board - April 27, 2004) for groundwater at a depth of between 250 and 350 feet.
VOCs via 8026B
mg/kg
3391
Table 3: Soil Sample VOCs Laboratory Results
5355 E. Airport Drive
Ontario, California 91761
Partner Project Number 16-163550.2
August 2016
EPA Method
Units
Analyte Residential Soil RSL Commercial /Industrial Soil RSL B1-1 B2-1 B3-15 B4-10 B5-15 B6-10 B7-10 B8-10 B9-1 B10-1 B11-1 B12-1 Benzene 0.097 420 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 Toluene 310 1300 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 Xylenes* 58 250 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 PCE 0.6 2.7 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 TCE* 0.94 6 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 Other VOCs NA NA ND ND ND ND ND ND ND ND ND ND ND ND
Notes:VOCs = volatile organic compounds
EPA = United States Environmental Protection Agencymg/kg = milligrams per kilogram< = not detected above indicated laboratory Reporting Limit (RL)NA = not applicableND = not detected above laboratory RLs VOCs via 8260B
(mg/kg)
RSL = June 2016 Department of Toxic Substances Control (DTSC) Regional Screening Levels (RSLs). If DTSC RSLs do not exist, May 2016 EPA Region 9 RSLs were utilized, as denoted by *.PCE = tetrachloroetheneTCE = trichloroethene 3392
Table 4: Soil Gas Sample VOCs Laboratory Results
5355 E. Airport Drive
Ontario, California 91761
Partner Project Number 16-163550.2
August 2016
EPA Method
Units
Sample
Identification Date Sampled PCE TCE* Toluene Ethylbenzene* m,p-Xylene* o-Xylene* Other VOCs B3-SG 7/21/2016 < 6.9 < 5.5 < 3.8 < 4.4 460 < 4.4 NDB4-SG 7/21/2016 < 6.9 < 5.5 < 3.8 280 1,100 400 NDB5-SG 7/21/2016 100 < 5.5 < 3.8 < 4.4 12 < 4.4 NDB6-SG 7/21/2016 68 26 4 < 4.4 19 4.6 NDB7-SG 7/21/2016 < 6.9 < 5.5 4.9 11 73 19 NDB8-SG 7/21/2016 44 13 13 21 140 38 ND SV-13-5' 7/29/2016 < 100 < 100 < 1000 < 400 < 1000 < 1000 NDSV-14-4' 7/29/2016 230 < 100 < 1000 < 400 < 1000 < 1000 NDSV-15-5' 7/29/2016 120 < 100 < 1000 < 400 < 1000 < 1000 NDSV-16-4' 7/29/2016 180 < 100 < 1000 < 400 < 1000 < 1000 NDSV-17-5' 7/29/2016 < 100 < 100 < 1000 < 400 < 1000 < 1000 NDSV-18-5' 7/29/2016 < 100 < 100 < 1000 < 400 < 1000 < 1000 NDSV-19-5' 7/29/2016 < 100 < 100 < 1000 < 400 < 1000 < 1000 NDSV-20-5' 7/29/2016 < 100 < 100 < 1000 < 400 < 1000 < 1000 NDSV-21-5' 7/29/2016 < 100 < 100 < 1000 < 400 < 1000 < 1000 NDSV-22-5' 7/29/2016 < 100 < 100 < 1000 < 400 < 1000 < 1000 NDSV-23-5' 7/29/2016 < 100 < 100 < 1000 < 400 < 1000 < 1000 NDSV-24-5' 7/29/2016 < 100 < 100 < 1000 < 400 < 1000 < 1000 NDSV-25-5' 7/29/2016 < 100 < 100 < 1000 < 400 < 1000 < 1000 NDSV-26-5' 7/29/2016 < 100 < 100 < 1000 < 400 < 1000 < 1000 ND SV-26-5' Dup 7/29/2016 < 100 < 100 < 1000 < 400 < 1000 < 1000 ND 240 240 155,000 550 50,000 50,000 NA
2,100 3,000 1,300,000 4,900 440,000 440,000 NA
Notes:VOCs = volatile organic compoundsEPA = United States Environmental Protection Agencyµg/m3 = micrograms per cubic meter< = not detected above indicated laboratory Reporting Limit (RL)ND = not detected above laboratory RLsValues in bold exceed laboratory RLs VOCs via TO-15 (7/21/2016) or 8260B (7/29/2016)
Dup = replicate analysis (duplicate)^Calculated soil gas screening levels (SGSLs) for soil gas concentrations were derived by dividing the June 2016 Department of Toxic Substances Control (DTSC) or May 2016 United States Environmental Protection Agency (EPA) Regional Screening Level (RSL) with an attenuation factor of 0.05 for sub-slab samples or with an attenuation factor of 0.002 for residential settings and 0.001 for commercial/industrial settings for soil gas samples deeper than sub-slab samples. DTSC RSLs are provided in the June 2016 DTSC Human and Ecological Risk Office (HERO) Human Health Risk Assessment (HHRA) Note 3. Where DTSC RSLs were not available, EPA Region 9 RSLs were utilized as denoted by *.PCE = tetrachloroetheneTCE = trichloroethene (µg/m3)
Residential SGSL^
Commercial/Industrial SGSL^
3393
FIGURES
3394
5355 East Airport Drive
Building B
Building A
Building C
Building D
Grain Mill
ASTs
Septic System
Vehicle
Wash-Down
Area
Maintenance
Area
Conveyor Belt
Railroad Spur
Hazardous
Waste
Storage
Maintenance
Area
Hazardous
Waste
Storage
Former USTs
B1 B2
B3
B4 B5
B6
B11
B8
B7
B9
B10
B12
SV-13 SV-17
SV-16
SV-15 SV-14
SV-18
SV-20
SV-21
SV-25
SV-23
SV-19
SV-22
SV-26
SV-24
Project Number: 16-163550.2
Sample Location Map
3 5355 East Airport Drive
Ontario, California 91761
N B. Godbois August 2016
Subject Site
Boring Location
50 30 15 6030
Legend
Figure Date
Approximate Scale: 1” = 60’
Prepared By
2154 Torrance Boulevard, Suite 200
Torrance, California 90501
3395
Subject
Property
Project Number: 16-163550.2
Topographic Map
2 5355 East Airport Drive
Ontario, California 91761
N B. Godbois August 2016
USGS Guasti, California
Quadrangle
Version: 1978 Current as of: 1981
2154 Torrance Boulevard, Suite 200
Torrance, California 90501
Legend
Figure Prepared By Date
3396
Railroad
East Airport Drive
5355 East Airport Drive
Commercial
Commercial
Commercial Commercial
Area shown in Figure 3
Building A
Building C Grain Mill
Grain Storage
Building B
Building D
Building E
2154 Torrance Boulevard, Suite 200
Torrance, California 90501
Figure Date
Project Number: 16-163550.2
Site Plan
1 5355 East Airport DriveOntario, California 91761
August 2016 N B. Godbois
Prepared By
Approximate Scale: 1” = 160’
80’ 40’ 0 80’ 160’
Legend
Subject Site
3397
PHASE I ENVIRONMENTAL
SITE ASSESSMENT REPORT
The Scoular Company
5355 East Airport Drive
Ontario, California 91761
Report Date: August 18, 2016
Partner Project No. 16-163550.1
Prepared for:
Prologis
Pier 1, Bay 1
San Francisco, CA 94111
3398
2154 Torrance Blvd., Suite 200, Torrance, CA 90501 ◊ Phone 800-419-4923 ◊ Fax 866-928-7418 August 18, 2016
Janet Frentzel
Prologis
Pier 1, Bay 1
San Francisco, CA 94111
Subject: Phase I Environmental Site Assessment
The Scoular Company
5355 East Airport Drive
Ontario, California 91761
Partner Project No. 16-163550.1
Dear Ms. Frentzel:
Partner Engineering and Science, Inc. (Partner) is pleased to provide the results of the Phase I Environmental Site Assessment (Phase I ESA) report of the abovementioned address (the “subject property”). This assessment was performed in general conformance with the scope and limitations as detailed in the ASTM Practice E1527-13 Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process.
This assessment included a site reconnaissance as well as research and interviews with representatives of the public, property ownership, site manager, and regulatory agencies. An assessment was made, conclusions stated, and recommendations outlined.
We appreciate the opportunity to provide environmental services to you. If you have any questions concerning this report, or if we can assist you in any other matter, please contact me at (818) 337-1203.
Sincerely,
Misty Vazquez Ponce
Principal
3399
Phase I Environmental Site Assessment
Project No. 16-163550.1
August 18, 2016
Page i
EXECUTIVE SUMMARY
Partner Engineering and Science, Inc. (Partner) has performed a Phase I Environmental Site Assessment (ESA) in general accordance with the scope of work and limitations of ASTM Standard Practice E1527-13, the Environmental Protection Agency Standards and Practices for All Appropriate Inquiries (AAI) (40 CFR Part 312) and as set forth by the Master Services Agreement between Prologis and Partner dated April 18, 2013 for the property located at 5355 East Airport Drive in the City of Ontario, San Bernardino County, California (the “subject property”). The Phase I Environmental Site Assessment is designed to provide Prologis with an assessment concerning environmental conditions (limited to those issues identified in the report) as they exist at the subject property.
Property Description
The subject property is located on the north side of East Airport Drive, approximately 2,700 feet west of the intersection of Etiwanda Avenue and Airport Drive, and southeast of the Interstates 10 and 15 Interchange. The subject property is located within a mixed commercial and industrial area of the City of Ontario in San Bernardino County. Please refer to the table below for further description of the subject property:
Subject Property Data
Address: 5355 East Airport Drive, Ontario, California
Historical Address: Before development Airport Drive was known as “Slover Avenue” Property Use: Commercial/Industrial
Land Acreage (Ac): 14.2 Ac
Number of Buildings: 5
Number of Floors: 1
Gross Building Area (SF): 17,000 square foot (SF) (Office/Warehouse); 7,000 SF (Truck Repair Shop); 1,600 SF (Warehouse);
3,600 SF (Grain Storage-East); and 9,000 (Grain Storage-West)* Net Rentable Area (SF): See above
Date of Construction: Between 1965 and 1973
Assessor’s Parcel
Numbers (APNs):
0238-052-020 (Parcel A); 0238-052-022 (Parcel B); 0238-052-029 (Parcel C)
Type of Construction: Office/Warehouse- Wood-Framed (Offices & Maintenance Area) Truck Repair Shop - Concrete Block (Maintenance Building) Warehouse - Concrete Block (Warehouse)
Grain Storage-East - Wood-Framed Corrugated Metal (Retail Grain Distribution)
Grain Storage-West - Wood-Framed Corrugated Metal (Wholesale Grain Distribution)
Current Tenants: The Scoular Company, with a sub-lease on the subject property to Verhoeven Grain Company
Site Assessment Performed By: Janet Tentler of Partner
Site Assessment Conducted On: June 29, 2016
*Square footage was estimated from Google Earth
3400
Phase I Environmental Site Assessment
Project No. 16-163550.1
August 18, 2016
Page ii
The subject property is a grain processing facility that has been in operation since at least 1973. Onsite operations consist of loading and unloading of multiple types of grain from trucks or the adjacent railyard and storing, milling, and processing for bulk and retail sale. Grain from the adjacent rail yard is off-loaded from the southern-most adjacent railroad spur and transported in an underground grain screw conveyor system to the centrally-located grain mill for processing, or to the grain silos for storage. The raw materials are steamed, rolled, and flattened into finish products. In addition to the current structures, the subject property is also improved with bulk storage silos, a vehicle wash-down area, and associated sheds.
Maintenance areas are located within the Office/Warehouse and Truck Repair Shop buildings. One service pit was observed within the Truck Repair Shop building, in the maintenance area.
According to available historical sources, the subject property was formerly undeveloped as early as 1938; developed as agricultural land between 1938 and circa 1970; and developed with the current structures circa 1973. Previous owners have included Robertson Farm’s Company (1946-1956) and Southern Pacific Grain Company (1956-1976), although aerial photographs indicate that no buildings/operations were present/conducted on the site until circa 1973. Since building construction, the following occupants have been located at the subject property: United Dairyman’s Association (1976-1978), Chino Grain Company (1978-1985); Coast Grain Company (1985-2003); J.B. Heiskell & Co. (2008); The Scoular Company (2006- Present); and Verhoeven Grain Company (2008-Present).
The immediately surrounding properties consist of commercial warehouses to the north across the railroad tracks (Emser Tile Company at 5300 Shea Center Drive and Dorel Juvenile Group at 5400 Shea Center Drive); Kmart Distribution Center (5600 East Airport Drive) to the south across Airport Drive; Praxair (5735 East Airport Drive) to the east; and a commercial building to the west (5351 East Airport Drive).
According to a nearby investigation report (on GeoTracker), a well located approximately 4 miles to the east of the subject property contained groundwater at approximately 300 feet below ground surface (bgs). Based on topography is anticipated to flow toward the south.
Findings
A recognized environmental condition (REC) refers to the presence or likely presence of any hazardous substances or petroleum products in, on, or at a property: due to release to the environment; under conditions indicative of a release to the environment; or under conditions that pose a material threat of a future release to the environment. The following was identified during the course of this assessment:
Based on information provided in the Environmental Data Resources, Inc. (EDR) regulatory database report, five former petroleum underground storage tanks (USTs) were located at the subject property since 1988; however, there are inconsistencies on the number and status of the USTs found in other documentation. Partner was able to identify removal/closure records for three of the USTS. Regulatory closure letters address the removal of the three 12,000-gallon diesel USTs (discussed as HRECs below). Separately, at least one UST was suspected to be adjacent to west of the Truck Repair Building. Partner observed evidence of concrete cuts for a possible fuel dispenser in this area. Records for the fifth possible UST were not clear. Based on 3401
Phase I Environmental Site Assessment
Project No. 16-163550.1
August 18, 2016
Page iii
the lack of information regarding the status of at least two former suspect USTs at this facility, the former USTs are considered a REC.
The subject property is currently equipped with two 250-gallon aboveground storage tanks (ASTs) containing diesel fuel. The original installation date is unknown. Diesel fuel is used to maintain the yard equipment, such as the front-end loaders, forklifts, and the bobcats. Minor to moderate staining was observed on the asphalt surface immediately surrounding the ASTs. The asphalt appeared to be in fair to poor condition with cracks observed in the area of the staining. Based on the lack of information regarding the age and installation dates of these ASTs at this facility and site observations, the ASTs are considered a REC.
Maintenance areas and storage of automotive-related fluids such as motor oil, waste motor oil, and antifreeze was observed in the two central buildings (Office/Warehouse and Truck Repair Shop). Petroleum staining was observed on the concrete floor within these buildings and the condition of the concrete floor was pitted in some areas. In addition, minor staining was observed adjacent to a parts washer. Based on the long-term use of these buildings for maintenance, the usage of petroleum products and hazardous materials and evidence of staining, the historical operations in these areas are considered a REC. A former vehicle wash-down area was observed north of the Truck Repair Shop. Partner observed a sump and pump in this area, however, were reportedly no longer in use. According to the site contact, when the vehicle wash-down area was in use, water would collect into the associated sump and “wastewater was pumped into a tank and then stored in 55-gallon drums for off-site disposal.” Previous reports indicated a violation was issued by the Regional Water Quality Control Board (RWQCB), which included truck wash water flowing into the parking lot.
According to an inspection report from the RWQCB based on an inspection conducted on August 16, 2001, it was noted that housekeeping at the subject property was poor and that boiler blowdown water was being used for dust control. In April 2001, the RWQCB received an anonymous compliant stating that employees at the subject property were routinely pouring used oil into a drain located outside of the Truck Repair Shop. The RWQCB re-inspected the subject property and was told that water from the truck wash down area discharges through a filter and is pumped from a sump into a 2,810-gallon AST. Employees at the subject property stated that the tank had never been emptied. The subject property was cited with several violations at the time including:
truck wash water flowing into the parking lot; storm water exceedances (December 2001); and condensate from the boiler room at the mill discharging onto the ground. Based on the use of this area as a truck wash and reported violations for past housekeeping practices, the historical operations in this area are considered a REC.
A controlled recognized environmental condition (CREC) refers to a REC resulting from a past release of hazardous substances or petroleum products that has been addressed to the satisfaction of the applicable regulatory authority, with hazardous substances or petroleum products allowed to remain in place subject to the implementation of required controls.
3402
Phase I Environmental Site Assessment
Project No. 16-163550.1
August 18, 2016
Page iv
Partner did not identify controlled recognized environmental conditions during the course of this assessment.
A historical recognized environmental condition (HREC) refers to a past release of any hazardous substances or petroleum products that has occurred in connection with the property and has been addressed to the satisfaction of the applicable regulatory authority or meeting unrestricted use criteria established by a regulatory authority, without subjecting the property to any required controls. The following was identified during the course of this assessment:
Two 12,000 gallon USTs identified as containing diesel were removed from the subject property in July 1989; available file information maps these USTs north of the mill building. In a letter dated September 4, 1998 by the San Bernardino County Fire Department, Hazardous Materials Division (SBCFD), a report prepared by Babcock & Sons, Inc. and dated July 25, 1989 was reviewed by the SBCFD. The letter indicated the “contamination remaining in the excavation is below that which is generally considered a problem and further investigation is not warranted at this time.” Based on the reported sampling conducted subsequent issuance of a No Further Action (NFA) letter by SBCFD, the two former 12,000 gallon USTs removed in 1989 are considered an HREC. One 12,000 gallon diesel fuel UST and associated dispenser was removed from the area north of the main office/warehouse building in December 2002. Confirmation sampling was conducted beneath the UST and the stockpiled soil which was re-used for backfill of the excavation. Residual petroleum impacts were identified in the stockpiled soil. The SBCFD issued an NFA letter on January 8, 2003 for the removal of the UST and associated dispenser. Based on the removal and subsequent issue of the NFA, the former 12,000 gallon diesel UST located north of the main office building (east of the ”former vegetable oil processing center”) is considered an HREC.
An environmental issue refers to environmental concerns identified by Partner, which do not qualify as RECs; however, warrant further discussion. The following was identified during the course of this assessment:
The site contact indicated sanitary discharges from the restrooms in the office/warehouse and truck repair shop buildings are directed to on-site septic systems. The site contact was not aware of where the septic systems were located and Partner did not observe any evidence of the septic system during the site visit. Previous reports identified two potential areas of the septic systems on a site figure; however, the prior reports also indicated the location of the septic systems were unknown. No service sinks or floor drains, other than those located in the restrooms, were observed on the subject property. Septic systems are typically of environmental concern due to the potential discharge of petroleum products or hazardous substances; however, since there were no floor drains or evidence of discharges to the septic systems other than for domestic use, the septic system(s) do not appear to be a significant environmental concern. The grain processing mill has been in operation since circa 1973. The processing equipment within the mill and underground conveyor systems require lubrication oil; however, no leaking or 3403
Phase I Environmental Site Assessment
Project No. 16-163550.1
August 18, 2016
Page v
other indications of a release were observed during the site reconnaissance. Based on site observations, the equipment use does not appear to be a significant environmental concern. The area north of the subject property includes several railroad lines, including rail road spurs which extend onto the subject property. Railroad lines may be of environmental concern due to the use of pesticides, herbicides and oils used for the maintenance of the rail lines, regulated railroad bedding material (slag, gravel, etc.) or chemicals leaching from treated railroad crossties.
Based on the commercial nature of the subject property, the presence of the rail lines do not appear to be a significant environmental concern.
Due to the age of the subject property buildings, there is a potential that asbestos-containing material (ACM) is present. Overall, suspect ACMs were observed in good condition and do not pose a health and safety concern to the occupants of the subject property at this time.
Conclusions, Opinions and Recommendations
Partner has performed a Phase I Environmental Site Assessment in conformance with the scope and limitations of ASTM Practice E1527-13 of 5355 East Airport Drive in the City of Ontario, San Bernardino County, California (the “subject property”). Any exceptions to, or deletions from, this practice are described in Section 1.5 of this report.
This assessment has revealed evidence of recognized environmental conditions and/or environmental issues in connection with the subject property. Based on the conclusions of this assessment, Partner recommends the following:
A limited subsurface investigation should be conducted in order to determine the presence or absence of soil and/or groundwater contamination due to the historical use of the subject property.
An Operations and Maintenance (O&M) Program should be implemented in order to safely manage the suspect ACMs located at the subject property. 3404
FIGURES
1 SITE LOCATION MAP
2 SITE PLAN
3 TOPOGRAPHIC MAP
3405
FIGURE
1:SITE LOCATION MAP
Project No. 16-163550.1 KEY: Subject Site 3406
FIGURE 2: SITE PLAN
Project No.16-163550.1 KEY: Subject Site GROUNDWATER
FLOW
Grain Storage
Grain Mill
Former UST(s)
location under canopy Haz Waste Storage
Grain Storage
Grain Storage 2x250-gallon diesel ASTs
Building E
Building A
Building C
Building B
Building D
Transformers (2)
Vehicle Wash-Down Area
Haz Waste Storage
3407
FIGURE
3:TOPOGRAPHIC MAP
Project No.16-163550.1
USGS 7.5 Minute Guasti, California Quadrangle Created: 1981 3408
APPENDIX A: SITE PHOTOGRAPHS
3409
APPENDIX A: SITE PHOTOGRAPHS
Project No. 16-163550.1
1. View of Main Building (Building A) 2. View of Warehouse Building (Building C)
3. View of Main Building (Building A) 4. View of Milling Area
5. View of Storage Silos 6. View of Grain Receiving Transfer Conveyor 3410
APPENDIX A: SITE PHOTOGRAPHS
Project No. 16-163550.1
7. View of Grain Receiving Transfer Conveyor 8. View of Storage Silos
9. View of Grain Storage (Building E) 10. View of Grain Storage (Building D)
11. View of Propane near Warehouse Building (Building C) 12. View of Diesel ASTs and Hydraulic Oil AST near Main Building (Building A)
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APPENDIX A: SITE PHOTOGRAPHS
Project No. 16-163550.1
13. View of Trash Dumpsters 14. View of Former Vehicle Wash-Down Area
15. View of Interior of Main Building (Building A)
Maintenance Area
16. View of Interior of Main Building (Building A) Maintenance Area
17. View of Interior of Main Building (Building A)
Maintenance Area
18. View of reported Former UST area near Maintenance
Building (Building B)
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APPENDIX A: SITE PHOTOGRAPHS
Project No. 16-163550.1
19. View of Service Pit within Building B 20. View of Waste Oil Storage within Building B
21. View of Maintenance Area within Building B 22. View of Interior Parking/Garage area within Main building (Building A)
23. View of 1 of 2 SCE Pad-Mounted Transformer labeled with No PCBs
24. View of 2 of 2 SCE Pad-Mounted Transformer labeled with No PCBs
3413
APPENDIX B: HISTORICAL/REGULATORY DOCUMENTATION
3414
Washington
Issaquah | Bellingham | Seattle
Oregon
Portland | Baker City
California
Oakland | Irvine
Your Challenges. Our Priority. | farallonconsulting.com
PHASE I/PHASE II
ENVIRONMENTAL SITE ASSESSMENT REPORT
5355 East Airport Drive
Ontario, California
Submitted by:
Farallon Consulting, L.L.C.
27 Mauchly, Suite 213
Irvine, California 92618
Farallon PN: 1071-080 (Task 2)
For:
Prologis, Inc.
Pier 1, Bay 1
San Francisco, California 94111
March 31, 2022
Prepared by:
Brant Rotnem
Staff Geologist
Kathy Lehnus, L.E.P., P.G.
Senior Geologist
Reviewed by:
Scott Allin, R.E.P.A.
Principal Environmental Scientist
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TABLE OF CONTENTS
ENVIRONMENTAL PROFESSIONALS’ STATEMENT ......................................... iii EXECUTIVE SUMMARY ............................................................................................. iv
1.0 INTRODUCTION.............................................................................................. 1-1 PROJECT AUTHORIZATION ............................................................... 1-1 PROFESSIONAL QUALIFICATIONS .................................................. 1-1 PROJECT PURPOSE AND OBJECTIVE .............................................. 1-1 PROJECT SCOPE OF SERVICES ......................................................... 1-2 DEVIATIONS ......................................................................................... 1-3 LIMITING CONDITIONS ...................................................................... 1-3 DATA GAPS ........................................................................................... 1-3
2.0 SITE OVERVIEW ............................................................................................. 2-1 SITE LOCATION .................................................................................... 2-1 SITE DESCRIPTION .............................................................................. 2-1 SITE OPERATIONS ............................................................................... 2-2 ADJACENT AND SURROUNDING LAND USE ................................ 2-3
3.0 PHYSICAL SETTING ...................................................................................... 3-1 TOPOGRAPHY ....................................................................................... 3-1 GEOLOGY AND HYDROGEOLOGY .................................................. 3-1 OIL AND GAS RECORDS ..................................................................... 3-2 SENSITIVE RECEPTORS ...................................................................... 3-2
4.0 USER-PROVIDED INFORMATION ............................................................. 4-1 TITLE AND LIEN RECORDS ............................................................... 4-1 EXPERIENCE AND SPECIALIZED KNOWLEDGE........................... 4-1 COMMONLY KNOWN INFORMATION ............................................ 4-1
PHASE I ENVIRONMENTAL SITE ASSESSMENT REPORT
USERS ..................................................................................................... 4-1 PREVIOUS ENVIRONMENTAL STUDIES ......................................... 4-1
5.0 SITE BACKGROUND AND HISTORY ......................................................... 5-1 SITE ......................................................................................................... 5-1 ADJACENT PROPERTIES .................................................................... 5-1
6.0 REGULATORY REVIEW ............................................................................... 6-1 ON-SITE LISTINGS ............................................................................... 6-1 ADJACENT AND OTHER FACILITY LISTINGS ............................... 6-2 UNMAPPABLE LISTINGS .................................................................... 6-3
7.0 INTERVIEWS.................................................................................................... 7-1 3416
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INTERVIEW WITH SOUTH COAST AIR QUALITY
MANAGEMENT DISTRICT .................................................................. 7-3
INTERVIEW WITH REGIONAL WATER QUALITY CONTROL
BOARD.................................................................................................... 7-4
8.0 SITE RECONNAISSANCE .............................................................................. 8-1 SITE RECONNAISSANCE METHODOLOGY .................................... 8-1 SITE RECONNAISSANCE OBSERVATIONS ..................................... 8-1 Interior Observations ................................................................... 8-1 Interior Observation Comments ................................................... 8-2 Exterior Observations .................................................................. 8-3 Exterior Observation Comments.................................................. 8-4
9.0 ADDITIONAL ENVIRONMENTAL SERVICES ......................................... 9-1 WETLANDS............................................................................................ 9-1 ASBESTOS.............................................................................................. 9-1 LEAD-BASED PAINT ............................................................................ 9-1 WATER SUPPLY/LEAD IN DRINKING WATER .............................. 9-1 RADON ................................................................................................... 9-1 WATER INTRUSION ............................................................................. 9-2
10.0 PHASE II ESA ................................................................................................. 10-1 PERMITTING ....................................................................................... 10-1 HEALTH AND SAFETY ...................................................................... 10-1 GEOPHYSICAL SURVEY ................................................................... 10-1 BORING LOCATIONS AND SAMPLING RATIONALE.................. 10-1 BORING ADVANCEMENT AND SOIL SAMPLING ....................... 10-2 SOIL VAPOR PROBE CONSTRUCTION AND SAMPLING ........... 10-2 SUMMARY OF SOIL SAMPLING RESULTS ................................... 10-3 SUMMARY OF SOIL VAPOR SAMPLING RESULTS..................... 10-3 WASTE HANDLING DISPOSAL........................................................ 10-4
11.0 SUMMARY AND CONCLUSIONS .............................................................. 11-1
12.0 REFERENCES ................................................................................................. 12-1
13.0 LIMITATIONS ................................................................................................ 13-1 GENERAL LIMITATIONS .................................................................. 13-1 LIMITATION ON RELIANCE BY THIRD PARTIES ....................... 13-1 3417
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FIGURES
Figure 1 Site Vicinity Map
Figure 2 Site Plan and Sampling Locations
Figure 3 PCE in Soil Vapor
TABLES
Table 1 Sample Rationale
Table 2 Summary of Volatile Organic Compounds in Soil
Table 3 Summary of Total Petroleum Hydrocarbons in Soil Table 4 Summary of Metals in Soil
Table 5 Summary of Volatile Organic Compounds in Soil Vapor
APPENDICES
Appendix A Professional Qualifications
Appendix B Site Photographs
Appendix C User Questionnaire
Appendix D Historical Documentation
Appendix E Environmental Database Report
Appendix F Boring Logs
Appendix G Laboratory Analytical Reports
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We declare that, to the best of our professional knowledge and belief, we meet the definition of Environmental Professional as established in Part 312.10 of Title 40 of the Code of Federal Regulations (40 CFR 312.10) and we have the specific qualifications based on education, training, and experience to assess a property of the nature, history, and setting of the subject property. We have developed and performed all appropriate inquiries in conformance with the standards and practices set forth in 40 CFR 312.
Name Brant Rotnem Name Kathy Lehnus, L.E.P., P.G.
Title Staff Geologist Title Senior Geologist
Name Scott Allin, R.E.P.A.
Title Principal Environmental Scientist
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EXECUTIVE SUMMARY
Farallon Consulting, L.L.C. (Farallon) has prepared this Phase I/Phase II Environmental Site Assessment (Phase I/II ESA) Report for the property at 5355 East Airport Drive in Ontario, California (herein referred to as the Site). The Phase I/II ESA was conducted by Brant Rotnem and was reviewed and approved by Kathy Lehnus and Scott Allin. All are experienced Environmental Professionals in the field of Phase I/II ESAs and related environmental investigations.
This Phase I/II ESA Report was prepared for Prologis, L.P., and its subsidiaries, affiliates, related parties (specifically including any 1031 exchange entities), successors, and assigns (Prologis) in accordance the letter regarding Proposal for Phase I Environmental Site Assessment and Media Management Plan dated December 10, 2021, from Kathy Lehnus and Scott Allin of Farallon to Julia Smith of Prologis; and the letter regarding Proposal for Subsurface Investigation, 5355 East Airport Drive, Ontario, California dated February 14, 2022, from Kathy Lehnus and Scott Allin of Farallon to Julia Smith of Prologis. The scope of work for this Phase I/II ESA is consistent with ASTM International Standard E1527-13 and E1527-21, Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process (ASTM E1527-13 and -21). ASTM E1527-13 is intended to assist the user in satisfying one of the requirements to qualify for protection from potential liability under the Comprehensive Environmental Response, Compensation, and Liability Act as the innocent landowner, contiguous property owner, or bona fide prospective purchaser. ASTM E1527-13 constitutes “all appropriate inquiry” into the previous ownership, uses, and environmental conditions of a property consistent with good commercial or customary practice, as defined in Section 9601(35)(B) of Title 42 of the U.S. Code.
There were no deviations from ASTM E1527-13 or -21 during this Phase I/II ESA, with the exception of additional environmental services requested by Prologis. Limiting conditions encountered during the Phase I/II ESA were the presence of vehicles parked on exterior portions of the Site that prevented Farallon from observing the entire ground surface of the Site, and the presence of equipment in the Site buildings that prevented Farallon from observing the entire interior floor surfaces. Based on information obtained from the Site representative, historical records, previous reports, and data obtained during the subsurface investigation conducted in March 2022, these limiting conditions are not expected to alter the conclusions of this report.
The purpose of the Phase I/II ESA was to identify, as practicable, recognized environmental conditions on the Site or proximate to the Site that have caused and/or may cause an adverse environmental condition. This Phase I/II ESA Report provides the results of investigation into past and present ownership and uses of the Site, consistent with good commercial and/or customary practice.
The Site consists of two parcels totaling 14.2 acres: Assessor Parcel No. 0238-052-20 (Eastern Parcel), and Assessor Parcel No. 0238-052-29 (Western Parcel). The Site is occupied by George Verhoeven Grain Inc. (dba Verhoeven Grain Inc.) and The Scoular Company, grain processing companies. Operations consist of the processing of raw grain, which is received by truck or by rail from the rail line north of the Site. The exact location of the rail line and associated spurs with 3420
vi P:\1071 Prologis\1071080 2021 SoCal Due Diligence II\002 5355 E Airport Dr\Deliverables\2022 Ph I & II ESA\2022.03.31_5355 E. Airport Dr_Phase I and II ESA_Farallon.docx Your Challenges. Our Priority. | farallonconsulting.com respect to the northern Site boundary could not be confirmed in available files. The raw materials are off-loaded, weighed, and transported to grain storage silos or other storage areas either by an underground auger conveyance or by dedicated on-Site vehicles. Raw grain processing operations occur at the grain mill Area, located in the north-central portion of the Site. After production, the processed grain is weighed, packaged, and loaded onto trucks for distribution.
The Site includes five buildings on the Eastern Parcel, consisting of Building A, used for office and warehouse space; Building B, used for facility maintenance with a vehicle repair shop; Building C, used as a warehouse; and Buildings D and E, used for grain storage. In addition, an office trailer with a small hazardous materials storage area is present on the southern portion of the Western Parcel. On-Site buildings are reportedly connected to septic systems; septic tanks are reportedly located southeast of Building E and potentially east of Building B, and one septic system is reportedly located on the western portion of the Site (location unknown). In 2016, a suspected septic system appears to have been located with ground-penetrating radar north of Building A, which could be in addition to or instead of previously reported septic systems. A vehicle washdown area with sump leading to an empty 10,000-gallon wash water aboveground storage tank (AST) is located north of Building B; this system is no longer used. Historical features associated with previous operations on the Site include two former “fuel storage” 12,000-gallon underground storage tanks (USTs) at the grain mill area, one former 12,000-gallon diesel UST east of Building C, and a former UST area containing an unspecified number of former USTs west of Building B.
These USTs are discussed further below. Access to the Site is gained from East Airport Drive, south of the Site. According to the San Bernardino County Assessor’s Office, the Site owner is Prologis Exchange 5355.
Historically, the Site was used as agricultural or grazing land from at least the late 1930s to the early 1970s. By 1973, the Eastern Parcel was developed with small grain storage silos and other features associated with milling operations in the grain mill area. In the 1975 aerial photograph, grain appeared to be stockpiled in the southwestern portion of the Site in Buildings A through C.
By 1985, the grain storage structures, Buildings D and E, were developed. By 2002, the Site appeared in its existing configuration. The 2002 aerial photograph shows grain processing operations had expanded at the Site to the Western Parcel, which included the development of three large grain storage silos. The Site has been occupied by Verhoeven Grain Inc. from 1973 to the present; Chino Grain and Milling, Inc. in 1985; Coast Grain Company between 1990 and 2003; The Scoular Company between 2004 and the present; and JD Heistell and Company in 2009.
Adjacent properties at the time of Farallon’s site reconnaissance included a rail line to the north followed by industrial buildings occupied by home furnishing businesses Emser Tile at 5300 Shea Center Drive and Dorel Home Furnishings at 5400 Shea Center Drive; Praxair, Inc. to the east at 5735 East Airport Drive; East Airport Drive to the south followed by industrial buildings occupied by distribution businesses K-Mart Distributions at 5600 East Airport Drive and XPO Logistics, Inc. at 5200 East Airport Drive; and a Verizon facility to the west at 5351 East Airport Drive.
Historically, adjacent properties consisted primarily of undeveloped and/or agricultural land.
Railroad tracks were present on the north-adjacent property from at least the early 1900s through the 1960s, when the east-adjacent property was developed with the existing industrial facility. By 3421
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A brine disposal pond owned by the Union Pacific Railroad Company and used by the Coast Grain Company for boiler blow-down water was installed in 1969 and removed in 1998 to allow for the addition of a rail line north of the grain mill area. According to the letter regarding Approval of Closure Report for the Brine Disposal Pond, Coast Grain Company, Ontario, California dated September 24, 1999, from the Santa Ana Regional Water Quality Control Board (Water Board), the closure of the pond included the removal of approximately 7,500 cubic yards of saltcontaminated soil and placement of a 40-mil high-density polyethylene liner. Miscellaneous analytical data available in the Water Board file indicated that soil was analyzed for pH, with no elevated readings noted. Based on mapping provided in the Water Board file, the pond was located south of the Southern Pacific Railroad Main Line between two sets of rail spurs; it appears to be just north of the current property line. However, a survey would be required to understand the northern property line in relation to the former brine disposal pond; this is considered a data gap for this report.
The EDR Radius Map Report with GeoCheck prepared for the Site by Environmental Data Resources, Inc. (EDR) dated December 9, 2021 (EDR Report) identified the Site address in several databases. The Site listings generally relate to hazardous material management, air quality permit requirements associated with grain processing equipment and operations, and historical USTs.
Database listings did not indicate records of a release at the Site. Farallon searched the California State Water Resources Control Board online GeoTracker database and the California Department of Toxic Substances Control online EnviroStor database for records related to the Site, but found no listings.
Farallon reviewed a Phase I ESA report dated August 18, 2016, and a Phase II Subsurface Investigation report dated August 16, 2016, prepared by Partner Engineering and Science, Inc. (Partner) for the Site (Partner 2016 Phase I Report and Partner 2016 Phase II Report, respectively).
According to the Partner 2016 Phase I Report, as many as five petroleum USTs were formerly in use at the Site, which was considered a recognized environmental condition, along with truck maintenance operations, ASTs, a vehicle wash-down area, conveyor belts, and at least one septic system. According to the Partner 2016 Phase II Report, 26 borings were advanced at depths between 1 and 25 feet below ground surface for the collection of soil and/or soil gas samples. Soil samples were analyzed for total petroleum hydrocarbons (TPH) carbon chain C6-C40 by U.S.
Environmental Protection Agency (EPA) Method 8015C and volatile organic compounds (VOCs) by EPA Method 8260B; and soil gas samples were analyzed for VOCs by EPA Methods TO-15 and 8260B. No detectable concentrations of VOCs or TPH carbon chain C6-C40 were present in soil samples. Analytical results of soil gas samples indicated detections of VOCs including tetrachloroethene, trichloroethene, toluene, ethylbenzene, and xylenes. The concentrations of these detectable results were less than the residential and commercial/industrial calculated soil gas screening levels (SGSL) at the time of the report beneath and west of Building B; however, concentrations of tetrachloroethene (PCE) detected in soil vapor samples collected from beneath 3422
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The EDR Report identified several facilities adjacent or proximate to the Site in the regulatory databases. Several of these facilities have known or suspected releases of hazardous substances to soil and/or groundwater. Based on their current regulatory status, depth to groundwater, topographic location relative to the Site, and/or relative distance from the Site, these facilities do not represent recognized environmental conditions in connection with the Site.
Prologis provided Farallon with a Preliminary Site Plan – Scheme 01, 5355 E. Airport Drive, City of Ontario by RGA Office of Architectural Design dated November 16, 2021, which depicted a proposed building on the northern and central portions of the Site. In March 2022, Farallon conducted soil and soil vapor sampling at the Site to assess former UST areas and septic systems, and the new building footprint for the potential for vapor intrusion issues. The scope of work for the Phase II ESA portion of this assessment included the advancement of 12 borings and installation of 10 temporary soil vapor probe locations with single- or multi-depth nested vapor points for the collection of soil and soil vapor samples. The Phase II ESA portion of this assessment was conducted on March 4 and 11, 2022.
No TPH or VOCs were detected exceeding laboratory detection limits in the soil samples collected from the Site. Low concentrations of naturally occurring metals including barium, cadmium, cobalt, chromium, copper, nickel, lead, vanadium, and zinc were detected in two soil samples submitted for analysis; these concentrations were considerably less than screening levels.
Based on subslab soil vapor data, soil vapor beneath the slab at Building B contains PCE exceeding calculated screening levels. PCE is present west of Building B at concentrations exceeding current calculated industrial screening levels using the 0.03 attenuation factor, but less than screening levels using the less conservative attenuation factors. PCE was also detected in soil vapor in central and eastern portions of the Site at concentrations less than the calculated screening levels in the shallow zones that were assessed. One concentration of PCE was detected exceeding calculated screening levels in a deeper soil vapor sample collected from the vicinity of two former 12,000- gallon USTs north of the grail mill area; the shallow soil vapor sample collected from this boring did not contain PCE exceeding calculated screening levels. The extent of PCE in soil vapor was not fully characterized.
Based on review of the Site history, including subsurface investigation reports, interviews with persons knowledgeable about the Site, reconnaissance of the Site, review of regulatory agency lists, and the completion of subsurface investigation at the Site, this Phase I/II ESA identified the following recognized environmental condition in connection with the Site:
• PCE impacts potentially associated with the use and storage of hazardous materials at Building B could contribute to vapor intrusion conditions on the Site. 3423
ix P:\1071 Prologis\1071080 2021 SoCal Due Diligence II\002 5355 E Airport Dr\Deliverables\2022 Ph I & II ESA\2022.03.31_5355 E. Airport Dr_Phase I and II ESA_Farallon.docx Your Challenges. Our Priority. | farallonconsulting.com In addition, Farallon identified the following historical recognized environmental conditions in association with the Site:
• Previous environmental reports note that one or more USTs were historically located west of Building B. Farallon was not able to find information regarding the UST in regulatory files, but did find some information regarding three to four diesel and unleaded gasoline USTs ranging in capacity from 4,000 to 10,000 gallons at unspecified locations at the Site preceding the presence of the three known 12,000-gallon USTs (noted in the grain mill area and southeast of Building C). In 2016, Partner conducted a subsurface investigation in this area and did not identify evidence of a petroleum release. • In 2002, Tank Specialists of California removed a 12,000-gallon diesel steel UST and fuel dispenser mapped southeast of Building C. According to the letter regarding Soil Sampling Following the Removal of an Underground Storage Tank – Coast Grain Co., 5355 E.
Airport Drive, Ontario, California dated December 18, 2002, from Advanced GeoEnvironmental, Inc., three confirmatory soil samples were collected beneath the bottom of the UST after removal, and soil samples were collected from stockpiles. The soil samples were analyzed for TPH as diesel; benzene, toluene, ethylbenzene, and xylenes; and methyl tertiary-butyl ether. Minor petroleum impacts were noted in stockpiled soil (800 milligrams per kilogram of TPH as diesel), which was reportedly used as backfill for the excavation. No constituents of concern were detected in the confirmatory soil samples collected from beneath the UST. Advanced GeoEnvironmental, Inc. recommended that San Bernardino County Fire Department (SBCFD) Hazardous Materials Division issue closure of the UST; and the letter regarding Removal of One Underground Storage Tank at Coast Grain Inc., Located at 5355 E. Airport Drive, Ontario, California dated January 8, 2002, from SBCFD was issued indicating that further investigation was not warranted. • Based on sampling conducted as part of this Phase I/II ESA, no release was found in connection with the two 12,000-gallon “fuel storage” USTs historically located at the grain mill, which were removed from the Site in 1998. A No Further Action determination issued by SBCFD indicated that residual impacts were present, although “below that which is generally considered a problem.”
The vehicle wash-down area located north of Building B was used for washing trucks (including molasses transportation trucks) and is no longer used. According to Site personnel, only truck exteriors were washed (not engines). Given the nature of use and that wash water was routed to an AST, with no discharge, the vehicle wash-down area is considered a de minimis condition for the Site. No release was found in the vicinity of the septic tanks located east of Building B, which provides a disposal pathway for a building that is known to have used chlorinated solvents and vehicular fluids.
Because two or three potential on-Site septic systems on the Western Parcel, located north of Building A and southeast of Building E, appear to be used for domestic sewer, with limited hazardous material use in the proximity that could be introduced to the septic systems as a release pathway, the presence of those septic systems is considered a de minimis condition for the Site.
Additionally, the presence of petroleum ASTs with secondary containment and/or no evidence of 3424
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At the request of Prologis, Farallon has included additional opinions and recommendations for the Site beyond those specified in ASTM E1527-13 and -21 for de minimis and recognized environmental conditions.
Based on the findings from this Phase I/II ESA, Farallon recommends preparation of a Media Management Plan for use during Site redevelopment to address any unexpected impacts to soil associated with historical activities at the Site, and to address any issues related to the former brine pond, underground grain conveyance systems, septic systems, and former USTs at the Site.
Additionally, because PCE has been documented in soil vapor in the vicinity of Building B at concentrations exceeding calculated screening levels, and PCE was detected in shallow soil vapor at concentrations less than the calculated RSLs in other soil gas samples collected at the Site, the potential for vapor intrusion into the planned new Site building should be addressed. Additional investigation and characterization are recommended to delineate and design mitigation measures for PCE in soil vapor that may impact indoor air in the future building.
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1.0 INTRODUCTION
This Phase I/II Environmental Site Assessment (Phase I/II ESA) Report was prepared by Farallon Consulting, L.L.C. (Farallon) for the property at 5355 East Airport Drive in Ontario, California (herein referred to as the Site) (Figure 1). This section discusses the project authorization, and the qualifications of the Environmental Professionals conducting and reviewing the Phase I/II ESA work. Also included in this section are the project purpose, objective, scope of services, deviations, limiting conditions, and data gaps.
PROJECT AUTHORIZATION
This Phase I/II ESA Report was prepared for Prologis, L.P., and its subsidiaries, affiliates, related parties (specifically including any 1031 exchange entities), successors, and assigns (Prologis) in accordance with the letter regarding Proposal for Phase I Environmental Site Assessment and Media Management Plan dated December 10, 2021, from Kathy Lehnus and Scott Allin of Farallon to Julia Smith of Prologis; and the letter regarding Proposal for Subsurface Investigation, 5355 East Airport Drive, Ontario, California dated February 14, 2022, from Kathy Lehnus and Scott Allin of Farallon to Julia Smith of Prologis. The scope of work for this Phase I/II ESA is consistent with ASTM International Standard E1527-13 and E1527-21, Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process (ASTM E1527- 13 and -21).
PROFESSIONAL QUALIFICATIONS
The Phase I/II ESA was conducted by Brant Rotnem and was reviewed and approved by Kathy Lehnus and Scott Allin. All have an understanding of surface and subsurface environmental conditions and the processes used to evaluate these conditions, and the ability to develop opinions regarding conditions indicative of a release or threatened release of hazardous substances and petroleum products. These Environmental Professionals have developed and performed all appropriate inquiry, in conformance with the standards and practices set forth in Part 312 of Title 40 of the Code of Federal Regulations. The professional qualifications of Brant Rotnem, Kathy Lehnus, and Scott Allin are provided in Appendix A.
PROJECT PURPOSE AND OBJECTIVE
The purpose of the Phase I/II ESA was to identify, as practicable, recognized environmental conditions on the Site and within the appropriate study area that have caused and/or may cause an adverse environmental impact. ASTM E1527-13 is intended to permit a user to satisfy one of the requirements to qualify for protection from potential liability under the Comprehensive Environmental Response, Compensation, and Liability Act as the innocent landowner, contiguous property owner, or bona fide prospective purchaser. ASTM E1527-13 constitutes “all appropriate inquiry” into the previous ownership, uses, and environmental conditions of a property consistent with good commercial or customary practice, as defined in Section 9601(35)(B) of Title 42 of the U.S. Code.
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For the purpose of this Phase I/II ESA Report, the term “recognized environmental condition” is defined as the presence or likely presence of any hazardous substance or petroleum product in, on, or at the Site due to releases to the environment, under conditions indicative of a release to the environment, or under conditions that pose a material threat of a future release to the environment.
The term is not intended to include “de minimis conditions” that generally do not present a threat to human health or the environment and that generally would not be the subject of an enforcement action if brought to the attention of the applicable governmental agencies.
The term “controlled recognized environmental condition” is defined as a recognized environmental condition resulting from a past release of a hazardous substance or petroleum product that has been addressed to the satisfaction of the applicable regulatory authority, with hazardous substances or petroleum products allowed to remain in-place subject to implementation of required controls.
The term “historical recognized environmental condition” is defined as a past release of any hazardous substance or petroleum product that has occurred in connection with the Site and has been addressed to the satisfaction of the applicable regulatory authority, without subjecting the Site to any required controls.
PROJECT SCOPE OF SERVICES
This Phase I/II ESA Report was prepared for Prologis, L.P., and its subsidiaries, affiliates, related parties (specifically including any 1031 exchange entities), successors, and assigns (Prologis) in accordance with the letter regarding Proposal for Phase I Environmental Site Assessment and Media Management Plan dated December 10, 2021, from Kathy Lehnus and Scott Allin of Farallon to Julia Smith of Prologis; and the letter regarding Proposal for Subsurface Investigation, 5355 East Airport Drive, Ontario, California dated February 14, 2022, from Kathy Lehnus and Scott Allin of Farallon to Julia Smith of Prologis. In addition, this work was conducted in accordance with the Master Services Agreement between Prologis and Farallon dated August 4, 2011.
The scope of work for this Phase I/II ESA included a records review, literature research and review, site reconnaissance, interviews with individuals familiar with the Site, interviews with local governmental officials, an investigation of soil and soil vapor, and preparation of this report.
At the request of Prologis, Farallon provided additional environmental services and recommendations for further action based on the findings of the Phase I/II ESA. These services are considered non-scope items and are not required to satisfy ASTM E1527-13 and -21. 3427
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DEVIATIONS
There were no deviations from ASTM E1527-13 or -21 during this Phase I/II ESA, with the exception of additional environmental services requested by Prologis.
LIMITING CONDITIONS
Limiting conditions encountered during this Phase I/II ESA were the presence of vehicles parked on exterior portions of the Site that prevented Farallon from observing the entire ground surface of the Site, and the presence of equipment in the Site buildings that prevented Farallon from observing the entire interior floor surfaces. Based on information obtained from the Site representative, historical records, previous reports, and data obtained during the subsurface investigation conducted in March 2022, these limiting conditions are not expected to alter the conclusions of this report.
DATA GAPS
Data gaps may affect the ability to identify recognized environmental conditions and Farallon’s ability to render opinions and conclusions for presentation in the Phase I/II ESA Report. The following data gap was identified during this Phase I/II ESA:
• George Verhoeven Grain Inc., dba Verhoeven Grain Inc. (Verhoeven), receives raw grain via a rail line north of the Site. The exact location of the rail line in relation to the northern property line has not been established in available records; part of the rail line could be located on portions of the Site. This constitutes a data gap for the Site. A land survey would be required to determine whether the rail spurs and/or a former brine pond in the area are present on the Site. If found to be located on the Site, further evaluation regarding the possible environmental issues related to rail lines, transportation of materials, and brine water disposal should be assessed.
Farallon did not identify other data gaps during this Phase I/II ESA. 3428
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2.0 SITE OVERVIEW
This section includes an overview of the Site location, improvements, and operations.
A description of adjacent and surrounding land use also is provided.
SITE LOCATION
The Site is approximately 0.5 mile west of the intersection of Etiwanda Avenue and East Airport Drive, located at 5355 East Airport Drive in Ontario, San Bernardino County, California (Figure 1). The location is in an industrial area approximately 40 miles east of downtown Los Angeles and approximately 7 miles south of the San Bernardino Mountains. The nearest residential community is 1.8 mile southeast of the Site.
SITE DESCRIPTION
The Site consists of two parcels totaling 14.2 acres: Assessor Parcel No. 0238-052-20 (Eastern Parcel), and Assessor Parcel No. 0238-052-29 (Western Parcel).
The Eastern Parcel is occupied by Verhoeven, a grain processing company, and contains grain storage silos, a grain mill area, and five buildings. An office and warehouse building, referred to as “Building A,” is located on the southern portion of the Site. The warehouse portion on the northeastern side of Building A contains a service shop for the repair of machinery related to the grain mill. Wastes stored in this area include motor oil, hydraulic oil, and gear oil, primarily related to tractor and forklift operation. A maintenance and repair shop, referred to as “Building B,” is present on the eastern portion of the Site, and is used for light tractor and forklift service. New and waste vehicle fluids are stored in a hazardous substance storage area on the southwestern interior border of Building B. Additional structures on the Eastern Parcel consist of a warehouse referred to as “Building C” on the north-central portion, used for assorted storage; and two grain storage structures on the southeastern and southwestern portions of the parcel, referred to as Buildings D and E. The property is primarily asphalt-paved, with some gravel-paved areas on the western portion of the parcel. Access to the Site is gained from East Airport Drive, south of the Site.
The Western Parcel is occupied by The Scoular Company (Scoular), a corn storage and distribution facility. The Scoular portion of the Site contains exterior grain storage, with an office trailer that contains a small hazardous substance storage area on secondary containment used for the storage of lubrication oils and greases for equipment.
A vehicle wash-down area is present on the northeastern portion of the Site, and three to four septic systems are associated with the Site: two or three on the Eastern Parcel, and one on the Western Parcel. The location of the septic system on the Western Parcel could not be determined from the records reviewed. Additionally, aboveground storage tanks (ASTs) and three areas with former underground storage tank (USTs) are associated with the Site (detailed in Section 4.5). 3429
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SITE OPERATIONS
According to the San Bernardino County Assessor’s Office, the Site owner is Prologis Exchange 5355. Verhoeven has operated the Eastern Parcel as a grain processing facility since development in 1973. Raw grain, including corn and barley, is received at the facility via a rail line north of the Site (Assessor Parcel No. 0238-052-22) and distributed via conveyor belt from grain silos to Scoular on the Western Parcel; the exact location of the rail line in relation to the northern property line has not been established in the records reviewed. Raw grain product is transferred via conveyor from the Western Parcel or transloaded from rail cars via underground piping to four large storage silos in the grain mill on the Eastern Parcel.
In the grain mill, the raw grain is fed through a cleaner silo, which removes chaff, cobb pieces, and other excess matter with a water wash. The cleaned grain is gravity-fed through steam jackets, which use natural-gas-fired, boiler-generated steam to soften the product before fan-drying. After processing, the product is stored in silos for off-Site transfer via truck.
In addition to product processing at the grain mill, operations at Verhoeven consist of light tractor and forklift service in Building B. A 4- to 5-foot-deep repair pit is located in Building B that is not in use by Verhoeven. Service on tractors and forklifts includes minor repairs with use of a petroleum-based parts cleaner, and tire changes. The fleet of grain distribution trucks is not serviced on the Site, with the exception of oil changes performed by an external service technician, who reportedly collects and removes the waste oil from the Site.
A bermed truck-washing area equipped with an underground sump leading to an empty 10,000- gallon wash water AST is located north of Building B. Personnel reported that it is no longer in use, only truck exteriors were washed in this area, and no undercarriage/chassis or engine washing was conducted on the Site.
Scoular operates the Western Parcel as a grain storage and distribution facility. Raw grain product is brought onto the Site via rail to the north, and either off-loaded into trucks for direct distribution, or transloaded via underground piping to one of three grain storage silos. The storage silos use hydraulic augers to transfer the grain onto a conveyor system for processing at the Verhoeven grain mill. In addition to the storage silos, the Scoular parcel is developed with a mobile office trailer and a gravel-paved yard.
At the time of the site reconnaissance, Farallon observed hazardous materials in the warehouse in the northeastern portion of Building A, an aboveground fueling area northeast of Building A (consisting of two 250-gallon diesel ASTs and one 220-gallon hydraulic oil AST), and in Building B. Materials stored in these areas consisted of diesel, motor oil, waste oil, gasoline, grease, lubricant, gear oil, transmission oil, and parts cleaning solution. Hazardous materials consisting of 3430
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Historical features associated with previous operations on the Site include two former petroleum 12,000-gallon USTs at the grain mill area, one former 12,000-gallon diesel UST east of Building C, and a former UST Area west of Building B. Historical operations, features, and reported septic systems are discussed further in Section 4.5. Figure 2 presents the locations of on-Site buildings and historical features.
ADJACENT AND SURROUNDING LAND USE
Adjacent properties at the time of Farallon’s site reconnaissance included a rail line to the north followed by industrial buildings occupied by home furnishing businesses Emser Tile at 5300 Shea Center Drive and Dorel Home Furnishings at 5400 Shea Center Drive; Praxair, Inc. to the east at 5735 East Airport Drive; East Airport Drive to the south followed by industrial buildings occupied by distribution businesses K-Mart Distributions at 5600 East Airport Drive and XPO Logistics, Inc. at 5200 East Airport Drive; and a Verizon facility to the west at 5351 East Airport Drive.
No visual evidence of recognized environmental conditions was observed on abutting or nearby properties during the site reconnaissance. Observations were restricted to areas readily observable from the Site.
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3.0 PHYSICAL SETTING
The physical setting of the Site, including topography, geology, and hydrogeology, is described in this section. Farallon’s assessment of sensitive receptors in the area also is discussed.
TOPOGRAPHY
Farallon reviewed the U.S. Geological Survey (USGS) topographic maps for Guasti, California, dated 2018 and provided by Environmental Data Resources, Inc. (EDR). The maps depict the Site at an elevation of approximately 980 feet above mean sea level. Site topography slopes gently to the south. Regional topography generally is sloped to the south.
GEOLOGY AND HYDROGEOLOGY
The Site is situated within the San Bernadino Valley of the Peninsular Ranges Geomorphic Province in Southern California. The Peninsular Range Province extends into lower California, and is bounded by the Colorado Desert to the east, the Pacific Ocean to the west and the San Gabriel and San Bernardino mountains to the north. The San Bernardino Mountains are located approximately 7 miles north of the Site. According to The EDR Radius Map Report with GeoCheck prepared for the Site by EDR dated December 9, 2021 (EDR Report), surface soil at the Site consists primarily of Delhi fine sand, which is somewhat excessively well drained.
According to the Phase II Subsurface Investigation Report dated August 16, 2016 by Partner Engineering and Science, Inc. (Partner) for the Site (Partner 2016 Phase II Report), soil beneath the Site generally consists of very fine grained, silty sand from the surface to depths of approximately 20 feet below ground surface (bgs) and transitions to very fine to coarse grained, poorly graded sand between depths of 20 and 25 feet bgs. Groundwater was not encountered during Partner’s investigation.
Soil encountered during the Phase II ESA investigation portion of this scope of work was described as silty fine to medium sand to a total explored depth of 10 feet bgs, with an apparent coarse sand and gravel layer at 10 feet bgs (and as shallow as 5 feet bgs on the eastern portion of the Site at boring SB-2). Boring logs are attached in Appendix F. Groundwater was not encountered during drilling.
Site-specific groundwater direction and depth information was not available in the records reviewed. Based on information obtained from the California State Water Resources Control Board GeoTracker database (GeoTracker database) and topographic interpretation, groundwater beneath the Site is anticipated at a depth of approximately 250 bgs and is estimated to flow to the south.
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OIL AND GAS RECORDS
According to the California Department of Conservation, Geologic Energy Management Division Well Finder online database, there are no permitted oil or gas wells on the Site or at adjacent properties.
SENSITIVE RECEPTORS
Farallon conducted a limited assessment of sensitive receptors on or in the vicinity of the Site that was confined to visually apparent features such as surface water bodies (e.g., low-lying wet areas, streams, ponds) and residential and recreational areas. Farallon’s assessment of sensitive receptors included a review of readily ascertainable information relating to the presence of private, semiprivate, public, and industrial water-supply wells.
According to the EDR Report, a groundwater monitoring well maintained by the San Bernardino County Water Resources Division is located between 0.125 and 0.25 mile of the Site, and groundwater monitoring wells maintained by the San Bernardino County Water Resources Division and Department of Public Health are located within 0.25 and 0.5 mile of the Site. In addition, a public drinking water well is located within 0.25 and 0.5 mile of the Site. No wetlands are mapped on the Site, and the Site is not mapped in a floodplain. The major water body nearest the Site was identified as the Santa Ana River, located approximately 6 miles south of the Site. 3433
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4.0 USER-PROVIDED INFORMATION
Farallon understands that the user of this report, Prologis, is seeking to follow the standards set forth in ASTM E1527-13 and -21 to complete an environmental assessment of the Site. The user has specific responsibilities for fulfilling ASTM E1527-13 and -21 requirements to help identify the possibility of recognized environmental conditions in connection with the Site. These responsibilities do not require the technical expertise of an Environmental Professional, and were not performed by the Environmental Professional who conducted the Phase I ESA at the Site.
To facilitate fulfillment of the ASTM E1527-13 and -21 requirements identified below, Farallon provided Prologis with a copy of the Phase I ESA User Questionnaire (User Questionnaire) to complete. The User Questionnaire is provided in Appendix C of this Phase I ESA Report.
TITLE AND LIEN RECORDS
Prologis indicated that it was not aware of environmental liens against the Site.
EXPERIENCE AND SPECIALIZED KNOWLEDGE
Prologis indicated that it has no experience or specialized knowledge regarding the Site.
COMMONLY KNOWN INFORMATION
Prologis indicated that it is not aware of commonly known information that would lead to identification of recognized environmental conditions in connection with the Site.
PHASE I ENVIRONMENTAL SITE ASSESSMENT REPORT USERS
Prologis will rely on this Phase I ESA Report.
PREVIOUS ENVIRONMENTAL STUDIES
Farallon was provided with the following environmental documents prepared for the Site:
• Phase I Environmental Site Assessment Report, The Scoular Company, 5355 East Airport Drive, Ontario, California 91761 dated August 18, 2016, prepared by Partner Engineering and Science, Inc. (Partner 2016 Phase I Report); and
• Phase II Subsurface Investigation Report, 5355 East Airport Drive, Ontario, California 91761 dated August 16, 2016, prepared by Partner (Partner 2016 Phase II Report).
At the time of the Partner 2016 Phase I Report, the Site was developed as it is today and occupied by grain processing companies. Facility features and operations included the same buildings and grain processing equipment and procedures discussed in Section 2.3. Other features observed at the Site included bulk storage silos, a vehicle wash-down area with associated sheds in the northeastern portion of the Site, two subsurface grain conveyance systems in the northern portion 3434
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Previous investigations discussed in the Partner 2016 Phase I Report included four previous Phase I ESAs, three of which were prepared by Terracon Consultants, Inc. (Terracon), dated May 3, 2016, January 19, 2010, and May 5, 2009; and one of which was prepared by SECOR International Incorporated (SECOR), dated October 8, 2003 (SECOR 2003 Phase I Report). Only one of these reports was attached for Farallon’s review: the 2016 Phase I Report by Terracon. Terracon did not identify recognized environmental conditions or controlled recognized environmental conditions in connection with the Site; however, a historical recognized environmental condition associated with total petroleum hydrocarbon (TPH) concentrations remaining in-place from a former UST was identified, based on a review of SECOR’s 2003 Phase I Report. The SECOR 2003 Phase I Report was not included as an attachment in Terracon’s report. The following information regarding SECOR’s observations and findings was summarized in the Terracon 2016 Phase I Report. According to Terracon, SECOR did not identify recognized environmental conditions or historical recognized environmental conditions but noted several environmental concerns, including former USTs, the use of petroleum-impacted material as backfill following the removal of a UST, septic systems, and various wastewater and stormwater violations.
SECOR reported that four USTs were removed from the Site, including two 12,000-gallon USTs located north of the mill area, one 12,000-gallon UST located east of the former vegetable oil processing area, and one UST of unknown size located west of the former truck shop building (assumed as present-day Building B). This area was screened with ground-penetrating radar by Partner in 2016, and an assumed UST grave was identified beneath the overhang west of Building B.
Based on SECOR’s review of records maintained by the San Bernardino County Fire Department (SBCFD), two 12,000-gallon USTs located north of the mill area were removed in 1989, and a letter issued by SBCFD on September 4, 1998 indicated “contamination remaining in the excavation is below that which is generally considered a problem and further investigation is not warranted.” SECOR reported previous investigations were completed by Grisanti and Associates. 3435
4-3 P:\1071 Prologis\1071080 2021 SoCal Due Diligence II\002 5355 E Airport Dr\Deliverables\2022 Ph I & II ESA\2022.03.31_5355 E. Airport Dr_Phase I and II ESA_Farallon.docx Your Challenges. Our Priority. | farallonconsulting.com Soil samples were collected in the vicinity of a 12,000-gallon diesel UST located east of the “former vegetable oil processing” center, which was speculated by Partner to be located in the northern-central portion of the Site. Analytical results of soil samples indicated concentrations of TPH as diesel (TPH-d) up to 4,500 parts per million at a depth of 16 feet bgs. The 12,000-gallon diesel UST was removed in December 2002 and was granted regulatory closure from SBCFD on January 8, 2003.
During SECOR’s site reconnaissance, a former fueling island was reportedly observed west of the truck repair shop (Building B). According to SECOR, no records were available regarding this former UST. However, an undated permit application for two 4,000-gallon diesel USTs was found on file with SBCFD. Additionally, a permit to operate five USTs, dated February 25, 1988, included a handwritten note indicating that the “number of tanks was amended from five to four per signed-off job card.” In 2002, this area was investigated by Grisanti and Associates, who found concentrations of TPH-d at 11 parts per million at a depth of 15 feet bgs, and no detectable concentrations at a depth of 20 feet bgs. Farallon assumes that these tank graves were the anomalies identified by Partner under the Building B awning in 2016.
Based on a review of Santa Ana Regional Water Quality Control Board, SECOR found that stormwater discharge from the Site exceeded discharge permit limits in 2001 for pH, total suspended solids, oil and grease, total organic carbon, total Kjeldahl nitrogen, biological oxygen demand, copper, and/or zinc. A violation was issued by the Santa Ana Regional Water Quality Control Board in 2001 for the absence of a Storm Water Pollution Prevention Plan and a Storm Water Management Plan.
The Partner 2016 Phase I findings identified four recognized environmental conditions, two historical recognized environmental conditions, and four environmental issues. The four recognized environmental conditions relate to the statuses of a fourth or fifth UST located on the Site, based on conflicting database information and a lack of historical records available regarding the status and location of the USTs; surficial degradation and staining of asphalt around two 250- gallon diesel fuel ASTs; staining and historical use of petroleum products and hazardous materials in maintenance areas within Buildings A and B; and potential impacts associated with the vehicle wash-down area and drainage system, based on reported violations relating to wastewater runoff, poor housekeeping, and an anonymous complaint regarding the routine pouring of used oil into a drain in the vicinity of the vehicle wash-down area. The two historical recognized environmental conditions identified related to the following: the two former 12,000-gallon diesel USTs, which were removed in 1989 and received a No Further Action (NFA) determination issued by SBCFD; and one former 12,000-gallon diesel UST and associated dispenser, which were removed in 2002 and received an NFA determination issued by SBCFD. The four environmental issues identified relate to unknown locations of two on-Site septic systems; grain processing equipment and subsurface grain conveyance systems requiring lubrication oil; railroad spurs extending onto the Site that may have impacted the Site with pesticides, herbicides, and oils from rail line maintenance and/or construction; and potential asbestos-containing materials associated with the age of the buildings. Recommendations regarding these findings included a limited subsurface investigation to determine the presence or absence of soil and/or groundwater contamination due to the historical 3436
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The Partner 2016 Phase II Report investigation completed at the Site included an assessment to identify former on-Site USTs or associated features, reported septic systems, and soil and soil gas sampling to assess for indications of a release from historical Site activities. A geophysical survey was completed to identify USTs remaining in-place, backfilled tankholds, septic tanks, and/or associated features, and to clear boring locations of utilities. One large anomaly, indicative of a backfilled excavation, was located under the western canopy of Building B, which generally corresponded to the location of the former USTs. There were no large metallic features identified, so Partner concluded that the USTs in this area had been removed. One large anomaly resembling a septic system was located north of Building A.
As part of the soil and soil gas investigation, 26 borings were advanced between depths of 1 and 25 feet bgs for the collection of soil and/or soil gas samples. Soil samples were analyzed for TPH carbon chain C6-C40 (TPH-cc) by U.S. Environmental Protection Agency (EPA) Method 8015C and volatile organic compounds (VOCs) by EPA Method 8260B; and soil gas samples were analyzed for VOCs by EPA Methods TO-15 and 8260B. No detectable concentrations of VOCs or TPH-cc were present in soil samples. Analytical results of soil gas samples indicated detections of VOCs including tetrachloroethene (PCE), trichloroethene, toluene, ethylbenzene, and xylenes.
The concentrations of these detectable results were less than the residential and commercial/industrial calculated soil gas screening levels (SGSLs) at the time of the report.
Partner concluded that there did not appear to be a discernable vapor intrusion condition to the Site, and the detections of VOCs in soil gas did not represent a threat to human health or the environment. Partner recommended no further investigation with respect to the on-Site grain handling facility at the time of the report.
Although the reported concentrations were less than regulatory criteria at the time of the report, the California Department of Toxic Substances Control Human Health Risk Assessment Note Number 3 was updated in April 2020 to include the use of a more conservative attenuation factor of 0.03 in SGSL calculations. The 0.03 attenuation factor can be used to develop “low” level screening levels and can be used in conjunction with previously approved attenuation factors published in 2011 (known as “high” level screening levels). In comparison with the “low level” PCE SGSL, the PCE concentrations in soil vapor samples collected from five locations in 2016 exceeded the calculated soil gas commercial/industrial screening level of 67 micrograms per cubic meter (µg/m3). Additionally, in comparison with the “low level” ethylbenzene SGSL, the ethylbenzene concentration in one soil vapor sample exceeded the calculated soil gas commercial/industrial screening level of 163 µg/m3. These samples were located within and adjacent to Building B at a depth of 5 feet bgs.
No other reports were provided to Farallon for review.
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5.0 SITE BACKGROUND AND HISTORY
Farallon reviewed the following historical sources as part of this Phase I/II ESA:
• Aerial photographs of the Ontario, California area dated 1938, 1948, 1953, 1959, 1966, 1975, 1985, 1990, 1994, 2002, 2005, 2009, 2012, and 2016 obtained from EDR; • Cole Information Services, GTE, and Haines and Digital Business Directories of Ontario, California dated 1985, 1990, 1995, 1999, 2003, 2004, 2008, 2009, 2014, and 2017 obtained from EDR; and
• USGS topographic maps of Guasti, California dated 1897, 1900, 1903, 1941, 1944, 1953, 1954, 1966, 1973, 1976, 1981, 2012, 2015, and 2018 obtained from EDR.
A search for fire insurance maps resulted in notification that there was no coverage for the Site.
Farallon is not responsible for the accuracy or completeness of the historical sources reviewed.
The historical sources documented were reasonably ascertainable and practically reviewable during this Phase I ESA. Historical sources are provided in Appendix D.
SITE
Topographic maps between 1897 and 1903 did not include significant detail regarding the Site.
The Site was used as agricultural or grazing land from at least the late 1930s to the early 1970s.
By 1973, the Eastern Parcel was developed with small grain storage silos and other features associated with milling operations in the grain mill area. In the 1975 aerial photograph, grain appeared to be stockpiled in the southwestern portion of the Site in Buildings A through C. Based on 1953, 1966, and 1981 topographic maps, Airport Drive was previously known as “Slover Avenue.” By 1985, the grain storage structures, Buildings D and E, were developed. By 2002, the Site appeared in its existing configuration. The 2002 aerial photograph shows grain processing operations had expanded at the Site to the Western Parcel, which included the development of three large grain storage silos. The Site has been occupied by Verhoeven from 1973 to the present; Chino Grain and Milling, Inc. in 1985; Coast Grain Company between 1990 and 2003; Scoular between 2004 and the present; and JD Heistell and Company in 2009.
Additional information regarding the Site history is provided in Section 6.1, On-Site Listings, and Section 7.0, Interviews.
ADJACENT PROPERTIES
The Site is bound by industrial properties to the north beyond the railroad tracks, industrial properties to the east and west, and industrial properties to the south across East Airport Drive.
Adjacent properties consisted primarily of undeveloped and/or agricultural land. Railroad tracks were present on the north-adjacent property from at least the early 1900s through the 1960s, when the east-adjacent property was developed with the existing industrial facility. By the early 1990s, 3438
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Additional information regarding adjacent properties is provided in Section 6.2, Adjacent and Other Facility Listings.
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6.0 REGULATORY REVIEW
EDR conducted a review of environmental regulatory agency database listings to identify reported environmental issues related to the Site and facilities in the Site vicinity. Farallon used the greater of each approximate minimum search distance from the Site for each of the referenced federal and state environmental databases, as specified in ASTM E1527-13 and -21.
Farallon reviewed the results from the EDR Report prepared for the Site to note reported facilities in the vicinity of the Site that were considered to have a potential to adversely impact the Site (i.e., are known to have resulted in or are expected to result in a recognized environmental condition).
Reported facilities identified in the EDR Report were evaluated with respect to the nature and extent of a given release, the distance of the reported facility from the Site, the stratigraphy of soil, the expected soil permeability, and the location of a reported facility with respect to known or expected local and/or regional groundwater flow direction.
The descriptions of the databases searched, the complete database names for the abbreviations used in this Phase I/II ESA Report, and the associated search distances from the Site are provided in the EDR Report presented in Appendix E.
ON-SITE LISTINGS
JD Heiskell Holdings LLC, former occupant of the Site, was identified on HAZNET, HWTS, CA FID UST, EMI, CIWQS, CERS, and WDS databases. The listings relate to hazardous material management, air quality permits, records of USTs, and industrial stormwater permits associated with livestock feed manufacturing operations. Hazardous wastes listed as being disposed of between 2003 and 2010 consisted of waste oil and mixed oil, aqueous solution with total organic residues less than 10 percent, other organic solvents, and asbestos-containing waste. No violations were identified in the listings. The listings for the USTs did not provide new information regarding contents, locations, and removal dates of the first-generation USTs.
George Verhoeven Grain Inc., located on the Site, was identified on FINDS, ECHO, RCRA NonGen/NLR, EMI, and CIWQS databases. George Verhoeven Grain Inc. was identified in the CERS, AST, CERS HAZ WASTE, CERS TANKS, NPDES, and San Bern. Co. Permit databases (listed in the EDR Report under “Coast Grain Inc.).” The listings relate to hazardous material management, air quality permits, ASTs, and industrial stormwater permits associated with grain processing operations. The CERS TANKS listings indicated records of aboveground petroleum storage. No other information regarding ASTs was provided in the EDR database listings. The CERS listing indicated some administrative violations during inspections; however, there were no violations indicating a spill or a release occurred at the Site. 3440
6-2 P:\1071 Prologis\1071080 2021 SoCal Due Diligence II\002 5355 E Airport Dr\Deliverables\2022 Ph I & II ESA\2022.03.31_5355 E. Airport Dr_Phase I and II ESA_Farallon.docx Your Challenges. Our Priority. | farallonconsulting.com The Scoular Company, located on the Site, was identified as “John Powell,” a manager of Scoular, based on information obtained online, in the HAZNET and HWTS databases. The listings related to hazardous material management between 2006 and 2010. Hazardous wastes in the listing included other organic solids, waste oil and mixed oil, unspecified aqueous solution, and unspecified organic liquid mixture. No violations were identified in the listings.
Coast Grain Inc./Coast Grain Company, former occupant of the Site, was identified on UST, CERS HAZ WASTE, SWEEPS UST, WDS, EMI, HAZNET, and HWTS databases. The listings related to records of USTs, industrial stormwater permits, air quality permits, and hazardous waste management associated with grain processing operations. The SWEEPS UST listing indicated the Site had five registered USTs. No specific information regarding the ASTs or USTs, including tank capacity, contents, or status, was provided in the listings. See Sections 4.5 and 7.3 for further discussion regarding USTs at the Site. Hazardous wastes in the listing between 2002 and 2003 included tank bottom waste with halogenated organics.
G&R Transportation, a freight shipping and trucking company, according to online resources, was listed as being associated with the Site address and identified in the HAULERS database. No pertinent information or violations were identified in the listing. No current or historical information regarding tenants at the Site has indicated G&R Transportation occupied the Site, and this listing may be incorrectly associated with the Site.
Farallon searched the GeoTracker database and the California Department of Toxic Substances Control online EnviroStor database (EnviroStor database) for records related to the Site, but found no listings. Additional information regarding the Site is provided in Section 7.5, Interview with Regional Water Quality Control Board.
ADJACENT AND OTHER FACILITY LISTINGS
Reported facilities within 0.25 mile up-gradient, 0.125 mile cross-gradient, or adjacent down-gradient of the Site with respect to the assumed groundwater flow direction are considered to have a potential to have impacted the Site. Facilities that were listed in the EDR Report but not identified as a reported facility (e.g., a facility listed as a hazardous waste generator but not as having had a release), and facilities that were listed as “Closed” were not considered to have a potential to have impacted the Site.
Praxair, Inc./Union Carbide Corp./Linde Inc./Kenan Advantage Group/Old Dominion Freight Line, at 5735 and 5705 East Airport Drive, east-adjacent to and cross-gradient of the Site with respect to assumed groundwater flow direction, were identified in the San Bern. Co. Permit, HIST UST, EMI, RCRA NonGen/NLR, UST, RCRA-SQG, LUST, CERS HAZ WASTE, CERS TANKS, TRIS, Cortese, NPDES, CIWQS, CERS, HWTS, AST, SWEEPS UST, CA FID UST, HIST CORTESE, NPDES, WDS, and/or CPS-SLIC databases. The listings relate to records of ASTs, USTs, industrial stormwater permits and discharge, air quality permits, hazardous materials management, and a leaking UST case that was granted case closure status in 1988. The LUST listing under Union Carbide Corp indicated solvents from a leaking UST had impacted soil. The listing indicated a case closure status as of September 7, 1988. HIST UST listings associated with 3441
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K-Mart Distribution Center/Ontario Distribution Center/Costco Wholesale/Costco Logistics, at 5600 East Airport Drive, located beyond Airport Drive, south-adjacent to and downgradient of the Site with respect to assumed groundwater flow direction, was identified in the LUST, SWEEPS UST, HIST UST, Cortese, HIST CORTESE, CERS, CA FID UST, EMI, NPDES, WDS, CIWQS, RCRA NonGen/NLR, AST, HAZNET, San Bern. Co. Permit, HWTS, RCRA-SQG, and RCRA-LQG databases. The listings relate to records of USTs, ASTs, industrial stormwater permits, hazardous materials management, and a leaking UST case. According to the SWEEPS UST and HIST UST listings, three USTs were installed on the property, including two 15,000-gallon diesel USTs and one 2,000-gallon unleaded fuel UST. Information obtained from the GeoTracker database indicated a leaking UST containing diesel fuel impacted soil at the property in 1992. The case was granted case closure status in 1993. Based on the status, depth to groundwater, and location of the property at a down-gradient direction from the Site, this property does not represent a recognized environmental condition in connection with the Site.
UNMAPPABLE LISTINGS
EDR identified six facilities as “unplottable” that EDR was unable to map due to inaccurate or inadequate address information. Farallon did not identify any of the unplottable facilities in the immediate vicinity of the Site. Therefore, the unplottable facilities located do not represent a recognized environmental condition in connection with the Site. 3442
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7.0 INTERVIEWS
Farallon conducted interviews with individuals familiar with the Site and contacted relevant local governmental agencies to obtain additional Site information. The responses from the parties contacted are provided below.
INTERVIEW WITH SITE REPRESENTATIVE
During the site reconnaissance, Farallon interviewed Randy Verhoeven of Verhoeven, and Steve Schennum of Scoular on January 13, 2022. The following information was obtained from this interview:
• No known USTs are present at the Site;
• Hazardous materials on the Site generally consist of diesel fuel, hydraulic fluid, gear oil, transmission oil, waste oil, and cleaning solvent;
• Utilities and natural gas are provided by the local municipality and gas company; and • The maintenance area inside the truck repair shop (Building B) included a subsurface service pit for vehicle repairs; this pit was not observed during the Site visit due to the presence of stored equipment, but reported by the Site contact to be 4 feet wide by 25 to 30 feet long and between 4 and 5 feet deep.
Randy Verhoeven and Steve Schennum stated that they had not been made aware of any pending, threatened, or past:
• Litigation relevant to hazardous substances or petroleum products in, on, or from the Site; • Administrative proceedings relevant to hazardous substances or petroleum products in, on, or from the Site; or
• Notices from a governmental entity regarding violations of environmental laws or liability relating to hazardous substances or petroleum products.
INTERVIEW WITH CITY
Farallon submitted a written information request to the City of Ontario on December 23, 2021 to inquire whether records of inspections, notices of violations and/or reported hazardous spills, building files, permits, wastewater discharge permits, and/or USTs for the Site were on file. On January 26, 2022, the City of Ontario provided Farallon with over 150 pages of files for the Site address related to building permits, City fire department inspections (for signage/fire safety violations), stormwater, and tenant improvement information. No information related to processing or storage locations, septic systems, or hazardous material use for the Site was found in the file.
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INTERVIEW WITH THE COUNTY
Farallon submitted a written information request for records from SBCFD on December 16, 2021.
SBCFD is the Certified Unified Program Agency for San Bernardino County, and maintains most records pertaining to hazardous substance use, storage, and waste generation; USTs and ASTs; hazardous substance inspections, and unauthorized releases. SBCFD allowed Farallon to copy files for Cast Grain Milling, Verhoeven, and Scoular at the Site addresses. In general, files were related to generator/handler information, USTs, and permit information. Pertinent files are summarized below.
Cast Grain Milling
In the letter regarding Removal of Two Underground Storage Tanks at 5355 Airport, Ontario dated September 4, 1998, from SBCFD, it was noted that a July 25, 1989 Babcock & Sons, Inc. report was reviewed by SBCFD and that contamination remaining after excavation is “below that which is generally considered a problem and further investigation is not warranted.” No further information was in the file regarding the USTs and locations; however, Farallon has determined that SBCFD is likely referring to the two 12,000-gallon fueling USTs noted in previous reports as formerly located north of the grain mill.
A 2001 SBCFD inspection indicated similar quantities of automotive fluids and oils generated as wastes at the Site. It was also noted that a “parts washer” was present in the “Vehicle Maintenance Division,” but the solvent used was not noted. It was also noted that molasses silos were in use at the Site, and a molasses storage tank was noted in the vicinity of the truck-washing area (containing molasses truck rinse water used as pig feed). A hazardous waste inventory dated 2001 noted perchloroethylene and trichloroethylene related to the parts washer, but volumes and locations were not noted.
In 2002, Tank Specialists of California removed a 12,000-gallon diesel steel UST and fuel dispenser mapped southeast of Building C. According to the letter regarding Soil Sampling Following the Removal of an Underground Storage Tank – Coast Grain Co., 5355 E. Airport Drive, Ontario, California dated December 18, 2002, from Advanced GeoEnvironmental, Inc., three confirmatory soil samples were collected beneath the bottom of the UST after removal, and soil samples were collected from stockpiles. The soil samples were analyzed for TPH-d; benzene, toluene, ethylbenzene, and xylenes; and methyl tertiary-butyl ether. Minor petroleum impacts were noted in stockpiled soil (800 milligrams per kilogram of TPH-d), which was reportedly used as backfill for the excavation. No constituents of concern were detected in the confirmatory soil samples collected from beneath the UST. Advanced GeoEnvironmental, Inc. recommended that SBCFD Hazardous Materials Division issue closure of the UST, and the letter regarding Removal of One Underground Storage Tank at Coast Grain Inc., Located at 5355 E. Airport Drive, Ontario, California dated January 8, 2002, from SBCFD was issued indicating that further investigation was not warranted. Farallon considers this UST a historical recognized environmental condition for the Site.
George Verhoeven Grain Inc.
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Hazardous waste inventories noted oils and welding gases; no solvents were noted.
The Scoular Company
Generator files dated 2010 were maintained with SBCFD that noted the use and generation of automotive fluids and wastes on the Site. No violations were noted. Operations were noted as discontinued in 2011 (although Farallon noted Scoular active at the Site during the 2022 site reconnaissance).
INTERVIEW WITH SOUTH COAST AIR QUALITY MANAGEMENT
DISTRICT
Farallon accessed online records available from South Coast Air Quality Management District on January 26, 2022. South Coast Air Quality Management District maintains records for five facilities associated with the Site address: Chino Grain & Milling Inc. (ID 3037); Coast Grain Company (ID 52930); Unicorn, LLC (ID 131542); George Verhoeven Grain Inc. (ID 163123); and The Scoular Company (ID 17251). A summary of the files is provided below.
Chino Grain & Milling Inc. (ID 3037)
The online file indicates that the Chino Grain & Milling Inc. facility is out of business, and contained equipment for storage and dispensing of gasoline and milling operations including amine regeneration, livestock feed rolling, cyclone, bulk loading of trucks, and livestock feed pelletizing. No violations were noted, and no documents could be found related to the storage or dispensing of gasoline in the online files.
Coast Grain Company (ID 52930)
The online file indicates that the Chino Grain Company facility was sold, and contained equipment for livestock feed rolling, cyclone, bulk loading of trucks, livestock feed pelletizing, storage tank livestock feed, service station storage and dispensing of gasoline, afterburner, boiler, baghouse, and emission reduction. No violations were noted, and no documents could be found related to the storage or dispensing of gasoline in the online files.
Unicorn, LLC (ID 131542)
The online file indicates that the Unicorn LLC facility was sold, and contained equipment for railroad car unloading grains. No violations were noted.
George Verhoeven Grain Inc. (ID 163123)
The online file indicates that the Verhoeven facility was active, and contained equipment for livestock feed rolling, cyclone, bulk loading of trucks, and a boiler. One violation was noted on September 4, 2012 that was in compliance by September 19, 2012; the nature of the violation was not captured in the record.
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The online file indicates that the Scoular facility was active, and contained equipment for rail car unloading. No violations were noted.
INTERVIEW WITH REGIONAL WATER QUALITY CONTROL BOARD
Farallon received files available from the Santa Ana Regional Water Quality Control Board (Water Board) on December 27, 2021. Water Board records included information regarding a former brine disposal pond associated with the boilers at the grain mill area. A summary of files is provided below.
A brine disposal pond owned by the Union Pacific Railroad Company and used by the Coast Grain Company for boiler blow-down water was installed in 1969 and removed in 1998 to allow for the addition of a rail line north of the grain mill area. According to the letter regarding Approval of Closure Report for the Brine Disposal Pond, Coast Grain Company, Ontario, California dated September 24, 1999, from the Water Board, the closure of the pond included the removal of approximately 7,500 cubic yards of salt-contaminated soil and placement of a 40-mil high-density polyethylene liner. Miscellaneous analytical data available in the Water Board file indicated that soil was analyzed for pH, with no elevated readings noted. Based on mapping provided in the Water Board file, the pond was located south of the Southern Pacific Railroad Main Line between two sets of rail spurs; it appears to be just north of the current property line. However, a survey would be required to understand the northern property line in relation to the former brine disposal pond. Based on the location and nature of use (boiler blow-down), and the location of the former brine pond in the vicinity of the northern property line, this is considered a data gap for this report.
In the event that the former brine pond is located off-Site, it would be considered a de minimis condition for the Site.
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8.0 SITE RECONNAISSANCE
Farallon conducted a site reconnaissance on January 13, 2022 to observe the Site for physical evidence of recognized environmental conditions. The methodology used for the site reconnaissance and the observations made during the reconnaissance are discussed below.
A description of the Site is provided in Section 2.2, Site Description. Photographs taken during the site reconnaissance are presented in Appendix B.
SITE RECONNAISSANCE METHODOLOGY
Farallon completed a walk around the entire perimeter of the Site and viewed interior operations.
There were no deviations from ASTM E1527-13 or -21 during the Phase I ESA, with the exception of additional environmental services requested by Prologis.
Limiting conditions encountered during this Phase I ESA were the presence of active and decommissioned equipment and vehicles on exterior portions of the Site that prevented Farallon from observing the entire ground surface of the Site, and the presence of equipment in the Site buildings that prevented Farallon from observing entire interior floor surfaces. Based on information obtained from the Site representative, historical records, previous reports, and data obtained during the subsurface investigation conducted in March 2022, these limiting conditions are not expected to alter the conclusions of this report.
SITE RECONNAISSANCE OBSERVATIONS
Weather conditions at the time of the reconnaissance were overcast, with a temperature of approximately 70 degrees Fahrenheit. No weather-related Site-access restrictions were encountered during the reconnaissance. Operations at the Site at the time of the reconnaissance were observed to be consistent with operations as described in Section 2.3, Site Operations.
Interior Observations
Farallon’s observations of the interior of the Site buildings during the site reconnaissance are documented in the table below. Comments pertaining to notable interior observations follow in Section 8.2.2. Photographs taken during the site reconnaissance are provided in Appendix B.
INTERIOR OBSERVATIONS YES NO
Odor X
Heating/Cooling System X
Drain(s) and/or Sump(s) X
Staining and/or Corrosion X
Storage Tank(s), Vent Pipe(s), Fuel Port(s), and/or Fill Pipe(s) X 3447
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INTERIOR OBSERVATIONS YES NO
Clarifier(s) X
Discharge Area X
Drum(s) and/or Other Container(s) X
Pool(s) of Liquid X
Automobile Lift(s) X
Monitoring Well(s) X
Hazardous Material(s) and/or Petroleum Product(s) X
Hazardous Waste X
Other X
Interior Observation Comments
Heating/Cooling System
The Site buildings are primarily unconditioned. Electrical window air-conditioning units were observed in select office/administrative areas.
A natural-gas-powered boiler unit is present within the grain mill, and provides steam for the steam jackets. The grain mill is also equipped with a fan-cooled cooling area. No other heating systems were observed in the buildings.
Hazardous Material(s) and/or Petroleum Product(s)
Hazardous substances stored within the Building A warehouse on the Eastern Parcel included small quantities of oils and automotive fluids. The materials were observed to be stored on pallets, with no staining or other evidence of a significant release.
Hazardous substances stored within Building B on the Eastern Parcel included two 55-gallon used oil drums; two 25-gallon grease carts; and a parts washer attached to a 55-gallon drum of Shellsol D43, a petroleum hydrocarbon-based mineral spirit. The materials were observed to be stored on pallets, with no staining or other evidence of a significant release.
Hazardous substances within a fire cabinet in the Western Parcel office trailer included two 5- gallon gasoline canisters. Additional materials stored outside of the fire cabinet included ten 5- gallon pails containing truck lubricants, gear oil, and hydraulic oil; one 25-gallon grease cart; and one 5-gallon pail containing grease. The materials were observed to be stored on pallets, with no staining or other evidence of a significant release.
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Hazardous wastes stored within the Building A warehouse on the Eastern Parcel included four 55- gallon drums of waste oil, five 25-gallon drums of waste oil, and approximately 20 five-gallon waste oil pails. The materials were observed to be stored on pallets, with no staining or other evidence of a significant release.
Other
The maintenance area inside the truck repair shop (Building B) included a subsurface service pit for vehicle repairs; this pit was not observed during the Site visit due to the presence of stored equipment, but reported by the Site contact to be 4 feet wide by 25 to 30 feet long and between 4 and 5 feet deep.
Exterior Observations
Farallon’s observations of the exterior of the Site during the site reconnaissance are documented in the table below. Comments pertaining to notable exterior observations follow in Section 8.2.4.
Photographs taken during the site reconnaissance are provided in Appendix B.
EXTERIOR OBSERVATIONS YES NO
Odor X
Staining and/or Corrosion X
Storage Tank(s), Vent Pipe(s), and/or Fuel Port(s) X
Drum(s) and/or Other Container(s) X
Pool(s) of Liquid X
Hazardous Material(s) and/or Petroleum Product(s) X
Hazardous Waste X
Pit(s), Pond(s), and/or Lagoon(s) X
Stressed Vegetation X
Solid (Nonhazardous) Waste—Evidence of Dumping X
Wastewater X
Domestic Water X
Water Well(s) X
Septic/Sewer System X
Stormwater X
Transformer(s) X
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EXTERIOR OBSERVATIONS YES NO
Significant Amount of Fill Material X
Other X
Exterior Observation Comments
Staining and/or Corrosion
Farallon observed incidental petroleum staining on several areas of the Site, generally near petroleum product storage areas. No drains, sumps, clarifiers, or other potential subsurface conduits were observed in these areas. The staining is considered de minimis and does not constitute a recognized environmental condition.
Storage Tank(s), Vent Pipe(s), and/or Fuel Port(s)
Four ASTs were present on the Site:
• Two 250-gallon, reportedly double-walled diesel ASTs within secondary containment.
These ASTs are located on the northeastern exterior border of Building A and are used for fueling tractors and forklift equipment. One of the ASTs is used by Verhoeven, and the other by Scoular.
• One 220-gallon, reportedly double-walled hydraulic oil AST located on the northeastern exterior border of Building A. This AST is used to provide new hydraulic oil for equipment operation and maintenance.
• One 499-gallon, single-walled propane AST located east of Building C.
The ASTs were observed to be in good condition with de minimis staining to nearby concrete pads, and no evidence of a significant release.
Domestic Water
Domestic water is supplied to the Site buildings by the City of Ontario.
Septic/Sewer System
Sanitary sewage generated at the Site discharges to three or four on-Site septic systems, two or three of which are located on the Eastern Parcel and one of which is located on the Western Parcel.
The estimated locations of the septic tanks and leach fields on the Eastern Parcel are identified on Figure 2. Property personnel on the Western Parcel were unaware of the location of the septic systems.
Because on-Site septic systems appear to be used for domestic sewer, with limited hazardous material use in the proximity that could be introduced to the septic systems as a release pathway, the presence of the septic systems at Building E, Building A, and on the Western Parcel is considered a de minimis condition for the Site. Because the septic system east of Building B is 3450
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Stormwater
Stormwater is removed from the Site via direct permeation through gravel-paved surfaces, and via concrete swale and paved surfaces to Airport Boulevard.
Transformer(s)
Three pad-mounted transformers were observed on the Site on the Western Parcel. No staining or leakage was observed in the vicinity of the transformers. Based on the good condition of the equipment, the transformers are not expected to represent a significant environmental concern.
An underground grain conveyance system is located within the grain mill area. Details of the underground system, including how grain is moved or whether hydraulic systems are present, was not provided to Farallon.
The presence of transformers, with no evidence or report of leaking, and underground grain conveyance systems are considered de minimis conditions for the Site. In the event that the conveyance systems are hydraulic and determined to have leaked, this conclusion should be reevaluated.
Other
The Eastern Parcel is equipped with a vehicle wash-down area with sump north of Building B, which is asphalt-paved and bermed, and was previously used for truck washing. Property personnel report that truck exteriors were washed in this area on an infrequent basis, and no undercarriage/chassis or engine washing was conducted on the Site. The wash area is equipped with a lined sump connected to an approximately 10,000-gallon AST via underground piping. The AST was empty at the time of the Site visit. Personnel report that the water tank has not been used in at least 11 years. Given the nature of use and that wash water was routed to an AST with no discharge, the vehicle wash-down area is considered a de minimis condition for the Site.
Rail spurs are present along the northern property boundary. Based on available mapping, it cannot be confirmed whether the rail spurs are located on the Site or to the north, which is a data gap for this report. Because of the nature of the conveyance of the rail spurs (for moving grain), the presence of rail spurs within or along the northern property boundary is considered a de minimis condition for the Site. If the spurs are determined to be on the Site, this conclusion should be reevaluated, as creosote and oils in rail spurs can lead to surficial releases to soil. 3451
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9.0 ADDITIONAL ENVIRONMENTAL SERVICES
At the request of Prologis, Farallon conducted environmental services in addition to those specified in ASTM E1527-13 and -21. These services are considered non-scope items, and are not required to satisfy ASTM E1527-13 and -21.
WETLANDS
Wetlands are defined jointly by EPA and the U.S. Army Corps of Engineers as “those areas that are inundated or saturated by surface or groundwater for a duration and frequency sufficient to support and under normal circumstances do support a prevalence of vegetation adapted for life in saturated soil conditions.” According to the EDR Report, wetlands are not present on the Site.
ASBESTOS
In June 1978, EPA initiated a ban on the use of asbestos-containing material in spray application products such as structural fireproofing and acoustic ceilings, pipe lagging, joint compounds, and spackles. Based on the construction date of the Site buildings of approximately 1973, asbestoscontaining materials may be present at the Site.
LEAD-BASED PAINT
In 1978, EPA initiated a ban on the manufacture and use of lead-based paints. Based on the construction date of the Site buildings of approximately 1973, lead-based paint may be present at the Site.
WATER SUPPLY/LEAD IN DRINKING WATER
Based on the Site buildings’ construction date of approximately 1973, it is possible that lead solder was used during construction of plumbing fixtures.
RADON
Radon is a colorless, tasteless, radioactive gas with an EPA-specified action level of 4.0 picocuries per liter of air. Radon gas has a short half-life of 3.8 days. The health risk potential of radon is associated with its rate of accumulation within confined areas, particularly those near or in the ground such as basements, where vapors can readily transfer from the ground to indoor air through foundation cracks or other pathways.
According to the EDR Report, the Site is in EPA Radon Zone 2, with predicted average indoor screening levels of between 2.0 and 4.0 picocuries per liter. The EPA zone designation reflects the average short-term radon measurement that can be expected to be measured in a building without implementation of radon-control methods. Based on the EPA designation, radon is unlikely to pose an environmental concern to Site occupants.
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WATER INTRUSION
Farallon inspected visually accessible building materials for evidence of water damage during the site reconnaissance. No visible evidence of water-damaged building materials was observed.
Farallon did not detect high-humidity areas in the buildings that would suggest moisture concerns. 3453
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10.0 PHASE II ESA
In March 2022, Farallon conducted soil and soil vapor sampling at the Site to assess former UST areas and septic systems, and the new building footprint for the potential for vapor intrusion issues.
The scope of work for the Phase II ESA portion of this assessment included the advancement of 12 borings and installation of 10 temporary soil vapor probe locations with single- or multi-depth nested vapor points for the collection of soil and soil vapor samples.
The general scope of work was proposed and authorized in the letter regarding Proposal for Subsurface Investigation, 5355 East Airport Drive, Ontario, California dated February 14, 2022, from Kathy Lehnus and Scott Allin of Farallon to Julia Smith of Prologis.
Sample locations are provided on Figures 2 and 3, with limited analytical data presented on Figure
3. Sampling rationale and analytical data from the sampling are included in Tables 1 through 5.
PERMITTING
No permitting was required for this work.
HEALTH AND SAFETY
Prior to conducting field investigation activities, a health and safety plan compliant with the requirements of the Occupational Safety and Health Act of 1970 and 8 CCR 3203 was prepared.
Additionally, in accordance with Farallon health and safety policy, personal protection equipment precautions related to COVID-19 were implemented for field personnel during field activities.
Prior to commencement of drilling activities, Farallon marked the proposed boring locations at the Site and contacted Dig Alert for public utility notice. Farallon also engaged a private utility location service to screen the proposed boring locations for utilities that may be encountered during advancement with hand tools and direct-push drilling.
GEOPHYSICAL SURVEY
Farallon oversaw the completion of a geophysical survey at several areas at the Site to attempt to locate former UST areas and reported septic tank areas. No underground structures were found in the survey areas, with the exception of two connected septic tanks northeast of Building B: one north of the building and one east of the building. A vapor point was advanced at the northern septic tank (SVP-10). The septic system east of the building was not accessible (in fenced area). It could not be determined whether the two septic tanks were connected.
BORING LOCATIONS AND SAMPLING RATIONALE
Borings SB-1 and SVP-1 were advanced in the vicinity of the two former 12,000-gallon petroleum USTs on the northern portion of the Site to confirm conditions at the former USTs and assess soil vapor beneath the proposed building footprint. Borings SVP-2, SVP-3, and SVP-4 were advanced 3454
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Borings SB-2 and SVP-5 were advanced in the vicinity of the former 12,000-gallon petroleum USTs on the central-eastern portion of the Site to confirm conditions at the former UST and assess soil vapor beneath the proposed building footprint. Boring SVP-6 was advanced at the vehicle wash-down area with sump to assess this area and the soil vapor beneath the proposed building footprint. Borings SVP-7, SVP-8, and SVP-9 were advanced west of Building B, and sub-slab points SS-1 and SS-2 were advanced beneath Building B to assess former PCE impacts encountered in soil vapor in these areas. Boring SVP-10 was advanced to the northwest of Building B to assess the likely location of the septic system associated with the building. Boring locations and rationale are presented in Table 1.
BORING ADVANCEMENT AND SOIL SAMPLING
For health and safety reasons, the borings were advanced using a hand auger to a depth of 5 feet bgs and subsequently completed to target (or attainable) depths with a direct-push drill rig.
Concrete and asphalt coverings were cored prior to advancing the borings. Soil encountered during the investigation was described as silty fine to medium sand to a total explored depth of 10 feet bgs, with an apparent coarse sand and gravel layer at 10 feet bgs (and as shallow as 5 feet bgs on the eastern portion of the Site at boring SB-2). Groundwater was not encountered during drilling.
The soils were visually inspected and screened by a Farallon Scientist using a photoionization detector and were described and logged using the United Soil Classification System (Modified).
No elevated photoionization detector readings or visual or olfactory evidence of a release were documented during the sampling activities.
Select soil samples were submitted under standard chain-of-custody protocols to Jones Environmental, Inc. of Santa Fe Springs, California for analysis of VOCs by EPA Method 8260 and TPH as gasoline (TPH-g) by EPA Method 8015M using EPA Method 5035 for preservation.
In addition, select soil samples were analyzed for the presence of TPH as diesel (TPH-d) and TPH as oil (TPH-o) by EPA Method 8015M, and for California Administration Manual metals by EPA Method 6010B. The full soil sampling schedule is provided in Table 1.
SOIL VAPOR PROBE CONSTRUCTION AND SAMPLING
A total of 14 soil temporary soil vapor probes were installed in 10 soil vapor borings at locations SVP-1 through SVP-10. In general, soil vapor probes were installed at a depth of 4 feet bgs throughout the proposed building footprint, with some deeper probes installed at depths of 8 and 10 feet bgs to assess targeted deeper potential source areas. Soil vapor probe final installation depths are provided in Table 1.
On March 11, 2022, soil gas probe installation was performed in accordance with the Advisory:
Active Soil Gas Investigations dated July 2015, prepared by the California Environmental Protection Agency (Soil Gas Advisory). The probes consisted of an Airstone microporous vapor implant (or equivalent) connected to 0.25-inch-outside-diameter Nylaflow tubing, finished at the surface with temporary plugs. The annulus around the vapor implant was backfilled with 3455
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The soil gas probes were allowed to equilibrate for 1 week prior to sample collection. Farallon contracted with Jones Environmental Inc. of Santa Fe Springs, California to perform soil gas sampling and analyze samples with its on-Site mobile laboratory. Prior to sample collection, a shut-in test was conducted in accordance with Section 4.2.1 of the Soil Gas Advisory; purging was conducted in accordance with Section 4.2.3 of the Soil Gas Advisory.
The soil vapor samples were collected into glass syringes at a rate of no more than 200 milliliters per minute. A mixture of n-pentane, n-hexane, and n-heptane was used as tracer compounds, which was applied to rags and set at each sample fitting during sample collection; the tracer compounds were not detected in the sub-slab soil vapor samples.
SUMMARY OF SOIL SAMPLING RESULTS
Soil analytical results are summarized below with a comparison with the Los Angeles Regional Water Quality Control Board Maximum Soil Screening Levels for properties with groundwater at a depth greater than 150 feet bgs (for TPH in soil), and with the California Department of Toxic Substances Control (DTSC) CA-Modified Regional Screening Levels (RSLs) and EPA RSLs (in the event that DTSC CA-Modified RSLs are not available) for industrial soil (for metals in soil).
Soil sampling results are summarized as follows:
• No TPH or VOCs were detected exceeding laboratory detection limits in the soil samples collected from the Site.
• Low concentrations of naturally occurring metals including barium, cadmium, cobalt, chromium, copper, nickel, lead, vanadium, and zinc were detected in two soil samples submitted for analysis (location SVP-6 from depths of 4 and 8 feet bgs). These concentrations were considerably less than screening levels.
Soil analytical results are tabulated in Tables 2 through 4. Soil analytical reports are attached in Appendix G.
SUMMARY OF SOIL VAPOR SAMPLING RESULTS
Soil vapor analytical results from the Phase II ESA are summarized below. These results were compared with DTSC calculated SGSLs using CA-Modified RSLs or EPA RSLs for indoor air with an attenuation factor of 0.03 or 0.001 for commercial/industrial settings, with an attenuation factor of 0.05 used for sub-slab soil vapor samples.
• PCE was detected in several of the soil vapor samples collected from the Site, as indicated below:
o PCE was detected in sub-slab soil vapor at concentrations of 220 and 170 μg/m3 ,
exceeding calculated screening levels.
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o PCE was detected in shallow soil vapor in central and eastern portions of the planned building slab area at concentrations less than calculated screening levels. o The soil vapor sample collected from a depth of 10 feet bgs at SVP-1 at the two former 12,000-gallon diesel USTs at the grain mill area contained PCE at a concentration of 157 μg/m3, exceeding the calculated screening level using the 0.03 attenuation factor (but less than the less conservative attenuation factor). Shallow soil vapor from this area contained PCE at considerably less concentrations than the calculated screening level using the 0.03 attenuation factor. • A trace concentration of dichlorodifluromethane was detected exceeding laboratory reporting limits in soil vapor sample SVP-10-8; however, this concentration (60 µg/m3) did not exceed the Industrial SGSL and was not found in other samples. • Low concentrations of toluene were detected at concentrations exceeding laboratory reporting limits in the soil vapor samples collected at the Site; however, none of these concentrations exceeded the Industrial SGSL for toluene (as high as 1,300,000 µg/m3). The maximum toluene concentration was reported as 106 µg/m3. • No other VOCs were detected at concentrations exceeding laboratory reporting limits.
The results for the soil gas samples are considered valid because the tracer compounds were not detected in the samples.
Based on the sampling results, PCE has been documented in soil vapor in the vicinity of Building B at concentrations exceeding screening levels, and PCE is also present in central and eastern portions of the Site in shallow zones at concentrations less than calculated screening levels.
Soil vapor analytical results are summarized in Table 5. Soil vapor analytical reports are attached in Appendix G.
WASTE HANDLING DISPOSAL
Soil cuttings and decontamination water were accumulated into one 55-gallon drum. The drum was sampled and is currently being profiled for disposal. Waste disposal information can be forwarded when available.
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11.0 SUMMARY AND CONCLUSIONS
Farallon conducted a Phase I/II ESA for 5355 East Airport Drive in Ontario, California in conformance with the scope and limitations of ASTM E1527-13 and -21. Any exceptions to or deletions from this practice are described in Section 1.5, Deviations.
The Phase I ESA indicated that the Site consists of two parcels totaling 14.2 acres: Assessor Parcel No. 0238-052-20 (Eastern Parcel), and Assessor Parcel No. 0238-052-29 (Western Parcel). The Site is occupied by George Verhoeven Grain Inc. (dba Verhoeven Grain Inc.) and The Scoular Company, grain processing companies. Operations consist of the processing of raw grain, which is received by truck or by rail from the rail line north of the Site. The exact location of the rail line and associated spurs with respect to the northern Site boundary could not be confirmed in available files. Former petroleum USTs in two areas, former and active septic systems, and a vehicle maintenance garage (Building B) were found in association with the Site during the Phase I ESA portion of this assessment.
According to the Partner 2016 Phase II Report, 26 borings were advanced at depths between 1 and 25 feet bgs for the collection of soil and/or soil gas samples. Analytical results of soil gas samples indicated detections of VOCs including tetrachloroethene, trichloroethene, toluene, ethylbenzene, and xylenes. The concentrations of these detectable results were less than the residential and commercial/industrial calculated SGSLs at the time of the report beneath and west of Building B.
However, the concentrations of PCE detected in five of the six soil gas samples contained PCE exceeding current commercial/industrial calculated SGSLs; these samples were collected from beneath and west of building B. Additionally, in comparison with the “low level” ethylbenzene SGSL, the ethylbenzene concentration in one soil vapor sample from this area exceeded the calculated soil gas commercial/industrial screening level of 163 µg/m3.
In March 2022, Farallon conducted soil and soil vapor sampling at the Site to assess former UST areas and septic systems, and the new building footprint for the potential for vapor intrusion issues.
No underground structures were found in the survey, with the exception of the two septic tanks northeast of Building B. The scope of work for the Phase II ESA portion of this assessment included the advancement of 12 soil borings and installation of 10 temporary soil vapor probe locations with single- or multi-depth nested vapor points and two sub-slab soil vapor sampling points for the collection of soil and/or soil vapor samples. The Phase II ESA portion of this assessment was conducted on March 4 and 11, 2022.
No TPH or VOCs were detected exceeding laboratory detection limits in the soil samples collected from the Site. Low concentrations of naturally occurring metals including barium, cadmium, cobalt, chromium, copper, nickel, lead, vanadium, and zinc were detected in two soil samples submitted for analysis; these concentrations were considerably less than screening levels.
Based on sub-slab soil vapor data, soil vapor beneath the slab at Building B contains PCE exceeding calculated screening levels. PCE is present west of Building B at concentrations exceeding current calculated industrial screening levels using the 0.03 attenuation factor, but less than screening levels using the less conservative attenuation factors. PCE was also detected in 3458
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Based on review of the Site history, including subsurface investigation reports, interviews with persons knowledgeable about the Site, reconnaissance of the Site, review of regulatory agency lists, and the completion of subsurface investigation at the Site, this Phase I/II ESA identified the following recognized environmental condition in connection with the Site:
• PCE impacts potentially associated with the use and storage of hazardous materials at Building B could contribute to vapor intrusion conditions on the Site.
In addition, Farallon identified the following historical recognized environmental conditions in association with the Site:
• Previous environmental reports note that one or more USTs were historically located west of Building B. Farallon was not able to find information regarding the UST in regulatory files, but did find some information regarding three to four diesel and unleaded gasoline USTs ranging in capacity from 4,000 to 10,000 gallons at unspecified locations at the Site preceding the presence of the three known 12,000-gallon USTs (noted in the grain mill area and southeast of Building C). In 2016, Partner conducted a subsurface investigation in this area and did not identify evidence of a petroleum release. • In 2002, Tank Specialists of California removed a 12,000-gallon diesel steel UST and fuel dispenser mapped southeast of Building C. According to the letter regarding Soil Sampling Following the Removal of an Underground Storage Tank – Coast Grain Co., 5355 E.
Airport Drive, Ontario, California dated December 18, 2002, from Advanced GeoEnvironmental, Inc., three confirmatory soil samples were collected beneath the bottom of the UST after removal, and soil samples were collected from stockpiles. The soil samples were analyzed for TPH as diesel; benzene, toluene, ethylbenzene, and xylenes; and methyl tertiary-butyl ether. Minor petroleum impacts were noted in stockpiled soil (800 milligrams per kilogram of TPH as diesel), which was reportedly used as backfill for the excavation. No constituents of concern were detected in the confirmatory soil samples collected from beneath the UST. Advanced GeoEnvironmental, Inc. recommended that SBCFD Hazardous Materials Division issue closure of the UST; and the letter regarding Removal of One Underground Storage Tank at Coast Grain Inc., Located at 5355 E. Airport Drive, Ontario, California dated January 8, 2002, from SBCFD was issued indicating that further investigation was not warranted.
• Based on sampling conducted as part of this Phase I/II ESA, no release was found in connection with the two 12,000-gallon “fuel storage” USTs historically located at the grain mill, which were removed from the Site in 1998. A No Further Action determination issued by SBCFD indicated that residual impacts were present, although “below that which is 3459
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The vehicle wash-down area located north of Building B was used for washing trucks (including molasses transportation trucks) and is no longer used. According to Site personnel, only truck exteriors were washed (not engines). Given the nature of use and that wash water was routed to an AST, with no discharge, the vehicle wash-down area is considered a de minimis condition for the Site. No release was found in the vicinity of the septic tanks located east of Building B, which provides a disposal pathway for a building that is known to have used chlorinated solvents and vehicular fluids.
Because two or three potential on-Site septic systems on the Western Parcel, located north of Building A and southeast of Building E, appear to be used for domestic sewer, with limited hazardous material use in the proximity that could be introduced to the septic systems as a release pathway, the presence of those septic systems is considered a de minimis condition for the Site.
Additionally, the presence of petroleum ASTs with secondary containment and/or no evidence of leaking, rail spurs within or along the northern property boundary, transformers with no evidence of leaking, and underground grain conveyance systems are considered de minimis conditions for the Site. Further, based on the location and nature of use (boiler blow-down), the former brine pond located in the vicinity of the northern property line is also considered a de minimis condition for the Site.
At the request of Prologis, Farallon has included additional opinions and recommendations for the Site beyond those specified in ASTM E1527-13 and -21 for de minimis and recognized environmental conditions.
Based on the findings from this Phase I/II ESA, Farallon recommends preparation of a Media Management Plan for use during Site redevelopment to address any unexpected impacts to soil associated with historical activities at the Site, and to address any issues related to the former brine pond, underground grain conveyance systems, septic systems, and former USTs at the Site.
Additionally, because PCE has been documented in soil vapor in the vicinity of Building B at concentrations exceeding calculated screening levels, and PCE was detected at concentrations in shallow soil vapor less than the calculated RSLs in other soil gas samples collected at the Site, the potential for vapor intrusion issues into the planned new Site building should be addressed.
Additional investigation and characterization are recommended to delineate and design mitigation measures for PCE in soil vapor that may impact indoor air in the future building. 3460
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12.0 REFERENCES
Advanced GeoEnvironmental, Inc. 2002. Letter Regarding Soil Sampling Following the Removal of an Underground Storage Tank – Coast Grain Co., 5355 E. Airport Drive, Ontario, California. From Robert D. Loeffler, Project Geologist. To Dave Hopper of Tank Specialists of California. December 18.
California Department of Toxic Substances Control. 2020. Human Health Risk Assessment Note Number 3. April.
——— 2021. EnviroStor Database Search. <https://www.envirostor.dtsc.ca.gov/public/>. (December).
California State Water Resources Control Board. 2022. GeoTracker Database Search. <http://geotracker.waterboards.ca.gov>. (January 26, 2022.) City of Ontario. 2021. Electronic Record Request. <https://www.ontario.ca/page/how-makefreedom-information-request>. (December 23, 2021.) Environmental Data Resources, Inc. 2021. Certified Sanborn Map Report. 5355 East Airport Drive, Ontario, California 91761. December 9.
———. 2021. The EDR Aerial Photo Decade Package. 5355 East Airport Drive, Ontario, California 91761. December 9.
———. 2021. EDR Historical Topo Map Report with QuadMatch. 5355 East Airport Drive, Ontario, California 91761. December 9.
———. 2021. The EDR Radius Map Report with GeoCheck. 5355 East Airport Drive, Ontario, California 91761. December 9.
———. 2021. EDR Summary Radius Map Report. 5355 East Airport Drive, Ontario, California 91761. December 9.
———. 2021. The EDR-City Directory Abstract. 5355 East Airport Drive, Ontario, California 91761. December 10.
Farallon Consulting, L.L.C. 2021. Letter Regarding Proposal for Phase I Environmental Site Assessment and Media Management Plan. From Kathy Lehnus and Scott Allin. To Julia Smith of Prologis. December 10.
———. 2021. Phase I ESA User Questionnaire. Completed by Prologis. December 15. 3461
12-2 P:\1071 Prologis\1071080 2021 SoCal Due Diligence II\002 5355 E Airport Dr\Deliverables\2022 Ph I & II ESA\2022.03.31_5355 E. Airport Dr_Phase I and II ESA_Farallon.docx Your Challenges. Our Priority. | farallonconsulting.com ———. 2021. Interview Regarding Permits for Aboveground and Underground Storage Tanks, Notices of Violations, and Hazardous Spills Between a Representative of Farallon and a Representative of the San Bernardino County Fire Department. December 16. ———. 2021. Interview Regarding Permits for Aboveground and Underground Storage Tanks, Notices of Violations, and Hazardous Spills Between a Representative of Farallon and a Representative of the City of Ontario. December 23.
———. 2022. Interview Regarding the Site Between a Representative of Farallon and Randy Verhoeven and Steve Schennum, Representatives of the Site. January 13. ———. 2022. Letter Regarding Proposal for Subsurface Investigation, 5355 East Airport Drive, Ontario, California. From Kathy Lehnus and Scott Allin. To Julia Smith of Prologis.
February 14.
Partner Engineering and Science, Inc. 2016. Phase II Subsurface Investigation Report, 5355 East Airport Drive, Ontario, California 91761. Prepared for Prologis. August 16. ———. 2016. Phase I Environmental Site Assessment Report, The Scoular Company, 5355 East Airport Drive, Ontario, California 91761. Prepared for Prologis. August 18.
Prologis, Inc. 2011. Master Services Agreement. Between Farallon and Prologis. August 4.
RGA Office of Architectural Design. 2021. Preliminary Site Plan – Scheme 01, 5355 E. Airport Drive, City of Ontario. November 16.
San Bernardino County Assessor’s Office. 2021. Search Property Information for Assessor Parcel Nos. 0238-052-20 and 0238-052-29.
<http://www.sbcounty.gov/assessor/pims/(S(srgaqmjgoouk5mz1th1dmdxg))/recaptcha.as px>. (December 9, 2021.)
San Bernardino County Fire Department. 1998. Letter Regarding Removal of Two Underground Storage Tanks at 5355 Airport, Ontario. From Susan Williams, Hazardous Materials Field Services. To Elmer J. Wood, Inc. September 4.
———. 2002. Letter Regarding Removal of One Underground Storage Tank at Coast Grain Inc., Located at 5355 E. Airport Drive, Ontario, California. From Catherine B. Richards, Environmental Health Specialist II. To Coast Grain Inc., Attention John Stellingworth.
January 8.
Santa Ana Regional Water Quality Control Board. 1999. Letter Regarding Approval of Closure Report for the Brine Disposal Pond, Coast Grain Company, Ontario, California. From Ann E. Sturdivant, Associate Engineering Geologist. To Barry Koca of Coast Grain Company, Citrus Division. September 24.
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Online Records Search. <https://xappprod.aqmd.gov/find>. January 26. 3463
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13.0 LIMITATIONS
GENERAL LIMITATIONS
The conclusions contained in this report/assessment are based on professional opinions with regard to the subject matter. These opinions have been arrived at in accordance with currently accepted hydrogeologic and engineering standards and practices applicable to this location. The conclusions contained herein are subject to the following inherent limitations:
• Accuracy of Information. Farallon obtained, reviewed, and evaluated certain information used in this report/assessment from sources that were believed to be reliable. Farallon’s conclusions, opinions, and recommendations are based in part on such information.
Farallon’s services did not include verification of its accuracy or authenticity. Should the information upon which Farallon relied prove to be inaccurate or unreliable, Farallon reserves the right to amend or revise its conclusions, opinions, and/or recommendations. • Reconnaissance and/or Characterization. Farallon performed a reconnaissance and/or characterization of the Site that is the subject of this report/assessment to document current conditions. Farallon focused on areas deemed more likely to exhibit hazardous materials conditions. Contamination may exist in other areas of the Site that were not investigated or were inaccessible. Site activities beyond Farallon’s control could change at any time after the completion of this report/assessment.
For the foregoing reasons, Farallon cannot and does not warrant or guarantee that the Site is free of hazardous or potentially hazardous substances or conditions, or that latent or undiscovered conditions will not become evident in the future. Farallon’s observations, findings, and opinions can be considered valid only as of the date of the report.
This report/assessment has been prepared in accordance with the contract for services between Farallon and Prologis, Inc. and currently accepted industry standards. No other warranties, representations, or certifications are made.
LIMITATION ON RELIANCE BY THIRD PARTIES
Reliance by third parties is prohibited. This report/assessment has been prepared for the exclusive use of Prologis, Inc. to address the unique needs of Prologis, Inc. at the Site at a specific point in time.
This is not a general grant of reliance. No one other than Prologis, Inc. may rely on this report unless Farallon agrees in advance to such reliance in writing. Any unauthorized use, interpretation, or reliance on this report/assessment is at the sole risk of that party, and Farallon will have no liability for such unauthorized use, interpretation, or reliance. 3464
P:\1071 Prologis\1071080 2021 SoCal Due Diligence II\002 5355 E Airport Dr\Deliverables\2022 Ph I & II ESA\2022.03.31_5355 E. Airport Dr_Phase I and II ESA_Farallon.docx
FIGURES
PHASE I/PHASE II
ENVIRONMENTAL SITE ASSESSMENT REPORT
5355 East Airport Drive
Ontario, California
Farallon PN: 1071-080 (Task 2)
3465
Checked By: HH Disc Reference:
FARALLON PN: 1071-080-002
³ SITE VICINITY MAP
5355 EAST AIRPORT DRIVE
ONTARIO, CALIFORNIA
Washington
Issaquah | Bellingham | Seattle
Oregon
Portland | Baker City
California
CONSULTING Oakland | Irvine
Your Challenges. Our Priority. | farallonconsulting.com Farallon
Drawn By: sgaynier Date: 12/23/2021
Q:\Projects\1071 Prologis\080 2021 SoCal Due Diligence II\002 Airport Dr\Mapfiles\Ph1\Figure-01_SiteVicinity.mxd FIGURE 1
REFERENCE: 7.5 MINUTE USGS QUADRANGLE GUASTI, CALIFORNIA, DATED 2013 0 2,000
SCALE IN FEET
!(
ONTARIO
SITE LOCATION
3466
Service Layer Credits: Source: Esri, Maxar,
GeoEye, Earthstar Geographics,
CNES/Airbus DS, USDA, USGS, AeroGRID,
IGN, and the GIS User Community
"/
"/
"/
")T
!(
!(
")T
")T
!
!
! !
!
!
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!
!
! !
!!
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!
!
!!
!
!
!
!
!
!
P
P
P P
P
P
P
P
P
P
P P
PP
P
P
P
P
P
P
PP P
P
P
P
P
P !
!
(
(
"
" "
" "
"
"
"
"
"
"
" "
" "
"
"
"
"
"
R
R R
R R
R
R
R
R
R
SV-24
SV-22
SV-26
B9
SV-23
SV-25 B1
SV-19
B3
SV-13 B2
SV-21 B8
B7 SVP-9
B4 B5
SV-17
SV-20
SVP-8
B6
SS-2
SV-16
SVP-2 SVP-3
SVP-5
SVP-7
SV-14
SS-1
SB-2 SVP-10
SV-15
B10
B11 SV-18
SVP-4 SVP-6
SB-1
SVP-1
B12
EAST AIRPORT DRIVE
G
OFFICE
TRAILER
G
BUILDING E;
GRAIN STORAGE
G
POSSIBLE
SEPTIC TANK
LOCATION
G
BUILDING A;
OFFICES/WAREHOUSE
G
TWO 250-GALLON DIESEL ASTs
AND 220-GALLON HYDRAULIC OIL AST
WESTERN PARCEL EASTERN PARCEL
G
BUILDING D;
GRAIN STORAGE
VERIZON
INDUSTRIAL BUILDING
5351 EAST AIRPORT DRIVE
G
POSSIBLE SEPTIC TANK
LOCATION AS FOUND
WITH GPR IN 2016
PRAXAIR, INC
5735 EAST AIRPORT DRIVE
G
BUILDING B;
MAINTENANCE/
VEHICLE REPAIR SHOP
G
FORMER UST AREA
G
OBSERVED SEPTIC
TANK LOCATION
GRAIN
STORAGE
GRAIN MILL
AREA
G
FORMER 12,000-GALLON
DIESEL UST (REMOVED)
G
BUILDING C;
WAREHOUSE
G
499-GALLON
PROPANE AST
G
VEHICLE WASH DOWN
AREA WITH SUMP
G
10,000-GALLON
WASH WATER AST
G
TWO FORMER
12,000-GALLON USTs
(REMOVED) G
FORMER
BRINE POND
(ESTIMATED)
RAIL LINE
³ CONSULTING
Checked By: KL Disc Reference:
FIGURE 2
SITE PLAN AND SAMPLING LOCATIONS
5355 EAST AIRPORT DRIVE
ONTARIO, CALIFORNIA
Your Challenges. Our Priority. | farallonconsulting.com Farallon
0 100
SCALE IN FEET
Washington
Issaquah | Bellingham | Seattle
Oregon
Portland | Baker City
California
Oakland | Irvine
Drawn By: jjones Date: 3/24/2022
Q:\Projects\1071 Prologis\080 2021 SoCal Due Diligence II\002 Airport Dr\Mapfiles\Ph1\Figure-02_SitePlan_SampleLocs.mxd FARALLON PN: 1071-080-002
LEGEND
R"" SOIL VAPOR PROBE (FARALLON, 2022)
!( GRAB SAMPLE (FARALLON, 2022)
!P BORING (FARALLON, 2022)
!P BORING (PARTNER, 2016)
"/ HAZARDOUS MATERIALS STORAGE AREA
!( SEPTIC TANK
")T TRANSFORMER
FORMER SITE FEATURE
OBSERVED TANK LOCATION
GROUND-PENETRATING RADAR SCAN AREA
PROPOSED BUILDING FOOTPRINT
SITE BOUNDARY
SAN BERNARDINO COUNTY PARCEL BOUNDARY
NOTES:
1. ALL LOCATIONS ARE APPROXIMATE.
2. FIGURES WERE PRODUCED IN COLOR.
GRAYSCALE COPIES MAY NOT REPRODUCE
ALL ORIGINAL INFORMATION.
GPR SURVEY AREA - 2022 (NO UST FOUND)
GPR = GROUND-PENETRATING RADAR
UST = UNDERGROUND STORAGE TANK
AST = ABOVEGROUND STORAGE TANK
3467
Service Layer Credits: Source: Esri, Maxar,
GeoEye, Earthstar Geographics,
CNES/Airbus DS, USDA, USGS, AeroGRID,
IGN, and the GIS User Community
"/
"/
"/
")T
")T
")T
!
!
! !
!
!
!
!
!
!
! !
!!
!
!
!
!
!
!
!!
!
!
!
!
!
!
P
P
P P
P
P
P
P
P
P
P P
PP
P
P
P
P
P
P
PP P
P
P
P
P
P !
!
(
(
"
" "
" "
"
"
"
"
"
R
R R
R R
R
R
R
R
R
G
EAST AIRPORT DRIVE
G
OFFICE
TRAILER
G
BUILDING E;
GRAIN STORAGE
G
POSSIBLE
SEPTIC TANK
LOCATION
G
BUILDING A;
OFFICES/WAREHOUSE
G
TWO 250-GALLON DIESEL ASTs
AND 220-GALLON HYDRAULIC OIL AST
WESTERN PARCEL EASTERN PARCEL
G
BUILDING D;
GRAIN STORAGE
VERIZON
INDUSTRIAL BUILDING
5351 EAST AIRPORT DRIVE
G
POSSIBLE SEPTIC TANK
LOCATION AS FOUND
WITH GPR IN 2016
PRAXAIR, INC
5735 EAST AIRPORT DRIVE
G
BUILDING B;
MAINTENANCE/
VEHICLE REPAIR SHOP
G
FORMER UST AREA
G
OBSERVED SEPTIC
TANK LOCATION
GRAIN
STORAGE
GRAIN MILL
AREA
G
FORMER 12,000-GALLON
DIESEL UST (REMOVED)
G
BUILDING C;
WAREHOUSE
G
499-GALLON
PROPANE AST
G
VEHICLE WASH DOWN
AREA WITH SUMP
G
10,000-GALLON
WASH WATER AST
G
TWO FORMER
12,000-GALLON USTs
(REMOVED) G
FORMER
BRINE POND
(ESTIMATED)
RAIL LINE
SV-24
SV-26
SV-22
SV-19
SVP-9
4.0'|24
SV-25 B9
SV-23
B1
B2
SV-21 B8 B7
SVP-8
4.0'|232
B4
B3
SV-13 SV-17
SV-20
SVP-5
4.0'|70
10.0'|234
SVP-7
4.0'|247
B5
B6 SV-16
SS-2
0.5'|194
SVP-2
4.0'|27
SVP-3
4.0'|<20 SV-14 SS-1
0.5'|220
SB-2
SV-15
SVP-10
4.0'|31
8.0'|63
B10
B11 SV-18
SVP-1
4.0'|31
10.0'|157 SVP-4
4.0'|62
SVP-6
4.0'|97
8.0'|34
SB-1
B12
³ CONSULTING
Checked By: KL Disc Reference:
FIGURE 3
PCE IN SOIL VAPOR
5355 EAST AIRPORT DRIVE
ONTARIO, CALIFORNIA
Your Challenges. Our Priority. | farallonconsulting.com Farallon
0 100
SCALE IN FEET
Washington
Issaquah | Bellingham | Seattle
Oregon
Portland | Baker City
California
Oakland | Irvine
Drawn By: jjones Date: 3/24/2022
Q:\Projects\1071 Prologis\080 2021 SoCal Due Diligence II\002 Airport Dr\Mapfiles\Ph1\Figure-03_PCE_SV.mxd FARALLON PN: 1071-080-002
LEGEND
R" SOIL VAPOR PROBE (FARALLON, 2022)
!( GRAB SAMPLE (FARALLON, 2022)
!P BORING (FARALLON, 2022)
!P BORING (PARTNER, 2016)
"/
HAZARDOUS MATERIALS STORAGE AREA
")T TRANSFORMER
FORMER SITE FEATURE
PROPOSED BUILDING FOOTPRINT
OBSERVED TANK LOCATION
GROUND-PENETRATING RADAR SCAN AREA
SITE BOUNDARY
SAN BERNARDINO COUNTY PARCEL BOUNDARY
NOTES:
1. ALL LOCATIONS ARE APPROXIMATE.
2. FIGURES WERE PRODUCED IN COLOR.
GRAYSCALE COPIES MAY NOT REPRODUCE
ALL ORIGINAL INFORMATION.
NOTES:
SAMPLE DEPTH AND ANALYTICAL RESULTS AS:
DEPTH IN FEET BELOW GROUND SURFACE | PCE
SOIL GAS ANALYTICAL RESULTS IN MICROGRAMS PER CUBIC METER.
BOLD =
< =
PCE =
DENOTES CONCENTRATIONS THAT EXCEED THE COMMERCIAL
SUBSLAB/SOIL GAS VAPOR INTRUSION ENVIRONMENTAL
SCREENING LEVEL.
DENOTES ANALYTE NOT DETECTED AT OR EXCEEDING THE
LISTED REPORTING LIMIT.
TETRACHLOROETHENE
GPR SURVEY AREA - 2022 (NO UST FOUND)
GPR = GROUND-PENETRATING RADAR
UST = UNDERGROUND STORAGE TANK
AST = ABOVEGROUND STORAGE TANK
3468
P:\1071 Prologis\1071080 2021 SoCal Due Diligence II\002 5355 E Airport Dr\Deliverables\2022 Ph I & II ESA\2022.03.31_5355 E. Airport Dr_Phase I and II ESA_Farallon.docx TABLES
PHASE I/PHASE II
ENVIRONMENTAL SITE ASSESSMENT REPORT
5355 East Airport Drive
Ontario, California
Farallon PN: 1071-080 (Task 2)
3469
Table 1
Sampling Rationale
5355 East Airport Road
Ontario, California
Farallon PN: 1071-080-002
Sample ID Location Rationale Matrix
Sampled
Boring Depth
(feet bgs)
Sample Depth and Analysis
(feet bgs)
SB-1 Soil 10 feet VOCs, TPH
Soil 10 feet VOCs, TPH
Soil Vapor 4 feet VOCs, TPH-g
10 feet VOCs, TPH-g
Soil 4 feet VOCs, TPH-g
Soil Vapor 4 feet VOCs, TPH-g
Soil 4 feet VOCs, TPH-g
Soil Vapor 4 feet VOCs, TPH-g
Soil 4 feet VOCs, TPH-g
Soil Vapor 4 feet VOCs, TPH-g
SB-2 Soil 10 10 feet VOCs, TPH
Soil 10 feet VOCs, TPH
Soil Vapor 4 feet VOCs, TPH-g
10 feet VOCs, TPH-g
Soil 4 feet VOCs, TPH, Metals
8 feet VOCs, TPH, Metals
Soil Vapor 4 feet VOCs, TPH-g
8 feet VOCs, TPH-g
Soil 4 feet VOCs, TPH
Soil Vapor 4 feet VOCs, TPH-g
Soil 4 feet VOCs, TPH
Soil Vapor 4 feet VOCs, TPH-g
Soil 4 feet VOCs, TPH
Soil Vapor 4 feet VOCs, TPH-g
Soil 8 feet VOCs, TPH
Soil Vapor 4 feet VOCs, TPH-g
8 feet VOCs, TPH-g
SS-1 Former PCE impacts Soil Vapor SS 0.5 foot VOCs, TPH-g SS-2 Former PCE impacts Soil Vapor SS 0.5 foot VOCs, TPH-g NOTES: VOCs = volatile organic compounds
SS = subslab bgs = below ground surface
TPH = total petroleum hydrocarbons PCE = tetrachloroethene TPH-g = total petroleum hydrocarbons as gasoline
UST = underground storage tank
Assess current subslab conditions
under Building B and to assess the
potential for soil vapor under the
future building
SVP-10 Building B Septic
System
Assess the Building B Septic
System
SVP-8 Former PCE impacts Assess the potential for soil vapor under the future building
8 Former 12,000-gallon
diesel UST east of
Building C
To assess the former UST and
assess the potential for soil vapor
under the future building
SVP-9 Former PCE impacts Assess the potential for soil vapor under the future building 4
10 SVP-7 Former PCE impacts Assess the potential for soil vapor under the future building
SVP-6 Vehicle wash-down area
with sump
To assess the vehicle wash-down
area with sump and assess the
potential for soil vapor under the
future building
8 4
4 SVP-1
Former 12,000-gallon
petroleum USTs (two)*
To assess former USTs and assess
the potential for soil vapor under
the future building
10 SVP-5
4 4
SVP-2 4
SVP-4
SVP-3 Assess the potential for soil vapor
under the future building
Planned New Building
Footprint
P:\1071 Prologis\1071080 2021 SoCal Due Diligence II\002 5355 E Airport Dr\Working Folder\Tables\1071-080_5355EAirportDr_Tables_2022-03-22_rev1 1 of 1 3470
Table 2
Summary of Volatile Organic Compounds in Soil
5355 East Airport Road
Ontario, California
Farallon PN: 1071-080-002 Tetrachloroethene Benzene
TolueneEthylbenzeneTotal XylenesOther VOCs
SB-1 SB-1-10' 10.0 3/4/2022 < 1.0 < 1.0 < 1.0 < 1.0 < 3.0 ND SB-2 SB-1-10' 10.0 3/4/2022 < 1.0 < 1.0 < 1.0 < 1.0 < 3.0 ND SVP-1 SVP-1-10' 10.0 3/4/2022 < 1.0 < 1.0 < 1.0 < 1.0 < 3.0 ND SVP-2 SVP-2-4' 4.0 3/4/2022 < 1.0 < 1.0 < 1.0 < 1.0 < 3.0 ND SVP-3 SVP-3-4' 4.0 3/4/2022 < 1.0 < 1.0 < 1.0 < 1.0 < 3.0 ND SVP-4 SVP-4-4' 4.0 3/4/2022 < 1.0 < 1.0 < 1.0 < 1.0 < 3.0 ND SVP-5 SVP-5-10' 10.0 3/4/2022 < 1.0 < 1.0 < 1.0 < 1.0 < 3.0 ND SVP-6-4' 4.0 3/4/2022 < 1.0 < 1.0 < 1.0 < 1.0 < 3.0 ND
SVP-6-8' 8.0 3/4/2022 < 1.0 < 1.0 < 1.0 < 1.0 < 3.0 ND
SVP-7 SVP-7-4' 4.0 3/4/2022 < 1.0 < 1.0 < 1.0 < 1.0 < 3.0 ND SVP-8 SVP-8-4' 4.0 3/4/2022 < 1.0 < 1.0 < 1.0 < 1.0 < 3.0 ND SVP-9 SVP-9-4' 4.0 3/4/2022 < 1.0 < 1.0 < 1.0 < 1.0 < 3.0 ND SVP-10 SVP-10-8' 8.0 3/4/2022 < 1.0 < 1.0 < 1.0 < 1.0 < 3.0 ND 2,700 1,400 5.3E+06 25,000 2.5E+06 NA
NOTES:
NA = not applicable
ND = not detected above the laboratory reporting limit
< denotes analyte not detected at or exceeding the reporting limit listed. NE = not established 1 Depth in feet below ground surface. RSL = Regional Screening Level VOCs = volatile organic compounds 2
Analyzed by U.S. Environmental Protection Agency (EPA) Method 8260B. Only detected VOCs shown in table; see lab report for full list of analytes. 3 June 2020 Department of Toxic Substances Control (DTSC) Regional Screening Levels (RSLs). If DTSC RSLs do not exist, April 2020 EPA RSLs were used and noted in blue text.
Results in bold and highlighted yellow denote concentrations exceeding applicable RSLs for the current property use (industrial/commercial).
Analytical Results (micrograms per kilogram)2
Commercial/Industrial Soil RSL3
Sample
Location
Sample
Identification
Sample
Depth
(feet)1 Sample Date
SVP-6
P:\1071 Prologis\1071080 2021 SoCal Due Diligence II\002 5355 E Airport Dr\Working Folder\Tables\1071‐080_5355EAirportDr_Tables_2022‐03‐22_rev1 1 of 1
3471
Table 3
Summary of Total Petroleum Hydrocarbons in Soil
5355 East Airport Road
Ontario, California
Farallon PN: 1071-080-002
TPH-g
(C4 - C12)
TPH-d
(C13 - C22)
TPH-o
(C23 - C40)
SB-1 SB-1-10' 10.0 3/4/2022 < 0.20 < 10.0 < 10.0
SB-2 SB-1-10' 10.0 3/4/2022 < 0.20 < 10.0 < 10.0
SVP-1 SVP-1-10' 10.0 3/4/2022 < 0.20 < 10.0 < 10.0
SVP-2 SVP-2-4' 4.0 3/4/2022 < 0.20 --- ---
SVP-3 SVP-3-4' 4.0 3/4/2022 < 0.20 --- ---
SVP-4 SVP-4-4' 4.0 3/4/2022 < 0.20 --- ---
SVP-5 SVP-5-10' 10.0 3/4/2022 < 0.20 < 10.0 < 10.0
SVP-6-4' 4.0 3/4/2022 < 0.20 < 10.0 < 10.0
SVP-6-8' 8.0 3/4/2022 < 0.20 < 10.0 < 10.0
SVP-7 SVP-7-4' 4.0 3/4/2022 < 0.20 < 10.0 < 10.0
SVP-8 SVP-8-4' 4.0 3/4/2022 < 0.20 < 10.0 < 10.0
SVP-9 SVP-9-4' 4.0 3/4/2022 < 0.20 < 10.0 < 10.0
SVP-10 SVP-10-8' 8.0 3/4/2022 < 0.20 < 10.0 < 10.0
100 100 1,000
500 1,000 10,000
1,000 10,000 50,000
NOTES:
C = carbon range (number of carbons)
MSSL = maximum soil screening level
< denotes analyte not detected at or exceeding the reporting limit listed. TPH-d = total petroleum hydrocarbons as diesel --- denotes sample not analyzed. TPH-g = total petroleum hydrocarbons as gasoline 1 Depth in feet below ground surface. TPH-o = total petroleum hydrocarbons as oil 2 Analyzed by U.S. Environmental Protection Agency (EPA) Method 8015M.
MSSL (20-150 feet Above Groundwater)3
MSSL ( > 150 feet Above Groundwater)3
Results in bold and highlighted yellow denote concentrations exceeding applicable RSLs for the current property use (industrial/commercial).
3 Los Angeles Regional Water Quality Control Board April 27, 2004 MSSLs for groundwater at depths of less than 20 feet, 20 to 150 feet, and greater than 150 feet below ground surface.
Sample
Location
Sample
Identification
Sample
Depth
(feet)1 Sample Date
Analytical Results (milligrams per kilogram)2
MSSL ( < 20 feet Above Groundwater)3
SVP-6
Table 4
Summary of Metals in Soil
5355 East Airport Road
Ontario, California
Farallon PN: 1071-080-002
Barium Cadmium Chromium Cobalt Copper Lead Nickel Vanadium Zinc Other
Metals
SVP-6-4' 4.0 3/4/2022 61.2 0.9 8.2 5.2 5.9 1.1 5.2 24.6 26.5 ND SVP-6-8' 8.0 3/4/2022 59.6 0.9 8.5 5.2 6.0 1.2 5.2 23.1 27.0 ND 15,000 2,100 NE 23 3,100 80 15,000 390 23,000 Various
220,000 9,300 NE 350 47,000 320 64,000 1,000 350,000 Various NOTES:Results in bold and highlighted yellow denote concentrations exceeding applicable RSLs for the current property use (industrial/commercial).< denotes analyte not detected at or exceeding the reporting limit listed.--- denotes sample not analyzed. 1Depth in feet below ground surface.2California Administrative Manual (CAM) Priority Pollutant List (PPL) 17 metals analyzed by U.S. Environmental Protection Agency (EPA) Method 6010B by 3050B; mercury analyzed by EPA Method 7471A. 3June 2020 Department of Toxic Substances Control (DTSC) Regional Screening Levels (RSLs). If DTSC RSLs do not exist, May 2020 EPA RSLs were used and noted in blue text.
Residential Soil RSL3Industrial Soil RSL3
Sample
Location
Sample
Identification
Sample
Depth
(feet) 1 Sample Date
SVP-6
Analytical Results (milligrams per kilogram)2
P:\1071 Prologis\1071080 2021 SoCal Due Diligence II\002 5355 E Airport Dr\Working Folder\Tables\1071‐080_5355EAirportDr_Tables_2022‐03‐22_rev1 1 of 1
3473
Table 5
Summary of Volatile Organic Compounds in Soil Vapor
5355 East Airport Road
Ontario, California
Farallon PN: 1071-080-002
PCE
Dichloro
difluoromethane Toluene TPH-gOther
VOCs
SS-1 SS-1 0.5 3/11/2022 --- 220 < 40 < 20 < 5,000 ND
SS-2 SS-2 0.5 3/11/2022 --- 194 < 40 < 20 < 5,000 ND
0.05 40 8800 26000 50000 Varies
SVP-1-4' 4.0 3/11/2022 --- 31 < 40 21 < 5,000 ND
SVP-1-10' 10.0 3/11/2022 --- 157 < 40 21 < 5,000 ND
SVP-2 SVP-2-4' 4.0 3/11/2022 --- 27 < 40 34 < 5,000 ND
SVP-3-4' 4.0 3/11/2022 --- < 20 < 40 78 < 5,000 ND
SVP-3-4'REP 4.0 3/11/2022 --- < 20 < 40 45 < 5,000 ND
SVP-4-4' 4.0 3/11/2022 --- 62 < 40 80 < 5,000 ND
SVP-4-4'REP 4.0 3/11/2022 --- 57 < 40 46 < 5,000 ND
SVP-5-4' 4.0 3/11/2022 --- 70 < 40 83 < 5,000 ND
SVP-5-10' 10.0 3/11/2022 --- 234 < 40 < 20 < 5,000 ND
SVP-6-4' 4.0 3/11/2022 --- 97 < 40 106 < 5,000 ND
SVP-6-8' 8.0 3/11/2022 --- 34 < 40 65 < 5,000 ND
SVP-7 SVP-7-4' 4.0 3/11/2022 --- 247 < 40 91 < 5,000 ND SVP-8 SVP-8-4' 4.0 3/11/2022 --- 232 < 40 89 < 5,000 ND SVP-9 SVP-9-4' 4.0 3/11/2022 --- 24 < 40 87 < 5,000 ND
SVP-10-4' 4.0 3/11/2022 --- 31 < 40 60 < 5,000 ND
SVP-10-8' 8.0 3/11/2022 --- 63 60 47 < 5,000 ND
0.001 2000 440000 1,300,000 2,600,000 Varies
0.03 67 14667 43,333 86,667 Varies
NOTES:
ND = not detected at or above the laboratory reporting limit PCE = Tetrachloroethylene
AF = Attenuation Factor
< denotes analyte not detected at or exceeding the reporting limit listed. --- denotes not applicable
1 Depth in feet below ground surface.
Analytical Results (micrograms per cubic meter)2
Sample
Location
Sample
Identification
Sample
Depth
(feet)1
Sample
Date AF
2 Analyzed by U.S. Environmental Protection Agency (EPA) Method 8260B. Only detected VOCs shown in table; see lab report for full list of analytes. 3 Calculated soil gas screening levels (SGSLs) were derived by dividing the April 2020 Department of Toxic Substances Control (DTSC) or June 2021 EPA Regional Screening Levels (shown in blue) for VOCs, and January 2019 SFBWQCB Environmental Screening Levels (ESLs) for TPH-g for indoor air by the noted attenuation factor.
Industrial SGSL For Sub-Slab3
Industrial SGSL For Soil Vapor3
SVP-3
SVP-1
Sub-slab Samples
Soil Vapor Samples
Results in bold denote concentrations detected above the laboratory reporting limit.
Results in bold and highlighted yellow denote concentrations exceeding applicable RSLs for the current property use (industrial/commercial).
Calculated SGSL with 2015 Attenuation Factor
(Industrial)
3 SVP-10
SVP-6
SVP-5
SVP-4
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APPENDIX A
PROFESSIONAL QUALIFICATIONS
PHASE I/PHASE II
ENVIRONMENTAL SITE ASSESSMENT REPORT
5355 East Airport Drive
Ontario, California
Farallon PN: 1071-080 (Task 2)
3475
Washington
Issaquah | Bellingham | Seattle
Oregon
Portland | Baker City
California
Oakland | Irvine
Your Challenges. Our Priority. | farallonconsulting.com
BRANT ROTNEM
Staff Geologist
BA Environmental Policy
13 years' experience
Brant Rotnem is an Environmental Professional with over 13 years of experience in the environmental consulting industry. Professional experience includes project management, site inspection in support of environmental due diligence, and preparation of over 1,000 Phase I Environmental Site Assessment Reports. Brant also has prepared Transaction Screen Analyses, Limited Environmental Site Assessments, database reviews, peer reviews, and additional due diligence scopes.
KATHY LEHNUS, L.E.P., P.G.
Senior Geologist
BSc Environmental Science
MSc Applied Geology
24 years' experience
Kathy Lehnus has 24 years of experience in the environmental consulting industry. Her professional experience includes conducting Phase I and Phase II Environmental Site Assessments, managing investigation and remediation projects led by the California Department of Toxic Substances Control and California Regional Water Quality Control Boards, investigating environmental impacts on investment portfolios, and providing oversight for soil and groundwater assessments. Kathy’s key skills include preparation of investigation and remediation work plans, regulatory navigation, and project quality and process improvement, including developing new policies and updating standard operating procedures.
SCOTT ALLIN, R.E.P.A.
Principal Environmental Scientist
BS Physical Science (Hydrology)
30 years' experience
Scott Allin has 30 years of project and program management experience in the evaluation and reporting of environmental liability associated with the sale or Brownfield redevelopment of impaired properties. He has supported the needs of developers and others in the acquisition of Cost Cap and Finite Risk environmental insurance to manage long-term environmental risks. He has provided clients with value-added due diligence services for single properties and large multimillion-dollar mixed-use portfolios, both nationally and internationally. Scott has provided guidance for evaluating environmental risks during complex mergers and acquisitions; and management services for implementation of remedial actions, asbestos abatement, environmental audit programs, and environmentally sensitive property improvements. 3476
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APPENDIX B
SITE PHOTOGRAPHS
PHASE I/PHASE II
ENVIRONMENTAL SITE ASSESSMENT REPORT
5355 East Airport Drive
Ontario, California
Farallon PN: 1071-080 (Task 2)
3477
Washington
Issaquah | Bellingham | Seattle
Oregon
Portland | Baker City
California
Oakland | Irvine
1 Your Challenges. Our Priority. | farallonconsulting.com
SITE PHOTOGRAPHS
Phase I Environmental Site Assessment Report
5355 East Airport Drive
Ontario, California
Farallon PN: 1071-080 (Task 2)
Photograph 1: Verhoeven grain mill.
Photograph 2: Wash water storage tank by truck-washing area.
Photograph 3: Bermed truck-washing area by Building B.
Photograph 4: Sump in truck-washing area.
Photograph 5: Diesel fueling area by Building A.
Photograph 6: Former underground storage tank area by Building B.
Photograph 7: Former underground storage tank area by Verhoeven Building C.
Photograph 8: Former underground storage tank area north of grain mill.
Photograph 9: Hydraulic augers at Scoular grain storage silos.
Photograph 10: Scoular grain storage silos.
Photograph 11: Septic tank location by Building A.
Photograph 12: Rail transloading area.
Photograph 13: Railway offloading area.
Photograph 14: Scoular hazardous materials storage area.
Photograph 15: Verhoeven equipment service area in Building A.
Photograph 16: Hazardous materials storage in Verhoeven equipment service area in Building A.
Photograph 17: Automotive service area in Verhoeven Building B.
Photograph 18: Parts washing equipment in Building B.
Photograph 19: Waste oil storage in Building B.
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SITE PHOTOGRAPHS (continued)
Phase I Environmental Site Assessment Report
5355 East Airport Drive
Ontario, California
2 Your Challenges. Our Priority. | farallonconsulting.com Photograph 1: Verhoeven grain mill.
Photograph 2: Wash water storage tank by truck-washing area. 3479
SITE PHOTOGRAPHS (continued)
Phase I Environmental Site Assessment Report
5355 East Airport Drive
Ontario, California
3 Your Challenges. Our Priority. | farallonconsulting.com Photograph 3: Bermed truck-washing area by Building B.
Photograph 4: Sump in truck-washing area.
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SITE PHOTOGRAPHS (continued)
Phase I Environmental Site Assessment Report
5355 East Airport Drive
Ontario, California
4 Your Challenges. Our Priority. | farallonconsulting.com Photograph 5: Diesel fueling area by Building A.
Photograph 6: Former underground storage tank area by Building B. 3481
SITE PHOTOGRAPHS (continued)
Phase I Environmental Site Assessment Report
5355 East Airport Drive
Ontario, California
5 Your Challenges. Our Priority. | farallonconsulting.com Photograph 7: Former underground storage tank area by Verhoeven Building C.
Photograph 8: Former underground storage tank area north of grain mill. 3482
SITE PHOTOGRAPHS (continued)
Phase I Environmental Site Assessment Report
5355 East Airport Drive
Ontario, California
6 Your Challenges. Our Priority. | farallonconsulting.com Photograph 9: Hydraulic augers at Scoular grain storage silos.
Photograph 10: Scoular grain storage silos.
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SITE PHOTOGRAPHS (continued)
Phase I Environmental Site Assessment Report
5355 East Airport Drive
Ontario, California
7 Your Challenges. Our Priority. | farallonconsulting.com Photograph 11: Septic tank location by Building A.
Photograph 12: Rail transloading area.
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SITE PHOTOGRAPHS (continued)
Phase I Environmental Site Assessment Report
5355 East Airport Drive
Ontario, California
8 Your Challenges. Our Priority. | farallonconsulting.com Photograph 13: Railway offloading area.
Photograph 14: Scoular hazardous materials storage area. 3485
SITE PHOTOGRAPHS (continued)
Phase I Environmental Site Assessment Report
5355 East Airport Drive
Ontario, California
9 Your Challenges. Our Priority. | farallonconsulting.com Photograph 15: Verhoeven equipment service area in Building A.
Photograph 16: Hazardous materials storage in Verhoeven equipment service area in Building A. 3486
SITE PHOTOGRAPHS (continued)
Phase I Environmental Site Assessment Report
5355 East Airport Drive
Ontario, California
10 Your Challenges. Our Priority. | farallonconsulting.com Photograph 17: Automotive service area in Verhoeven Building B.
Photograph 18: Parts washing equipment in Building B.
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SITE PHOTOGRAPHS (continued)
Phase I Environmental Site Assessment Report
5355 East Airport Drive
Ontario, California
11 Your Challenges. Our Priority. | farallonconsulting.com Photograph 19: Waste oil storage in Building B.
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SOIL GAS INVESTIGATION REPORT
5355 East Airport Drive
Ontario, California
Submitted by:
Farallon Consulting, L.L.C.
27 Mauchly, Suite 213
Irvine, California 92618
Farallon PN: 1071-080 (Task 2)
For:
Prologis, L.P.
Pier 1, Bay 1
San Francisco, California 94111
February 14, 2023
Prepared by:
Peter Sims, P.G.
Associate Geologist
Jared Eudell
Associate Scientist
Reviewed by:
Kathy Lehnus, P.G.
Senior Geologist
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TABLE OF CONTENTS
1.0 INTRODUCTION.................................................................................................... 1-1
2.0 SITE BACKGROUND ......................................................................................... 2-1
2.1 SITE DESCRIPTION .................................................................................. 2-1
2.2 SITE HISTORY .......................................................................................... 2-1
2.3 PREVIOUS INVESTIGATIONS ................................................................... 2-2
3.0 PHYSICAL SETTING .......................................................................................... 3-1
3.1 TOPOGRAPHY .......................................................................................... 3-1
3.2 GEOLOGY AND HYDROGEOLOGY ........................................................... 3-1
4.0 SOIL GAS INVESTIGATION ................................................................................ 4-1
4.1 SCOPE OF WORK ..................................................................................... 4-1
4.1.1 Health and Safety Plan Preparation .......................................... 4-1
4.1.2 Underground Utility Clearance ................................................... 4-1
4.1.3 Boring Advancement ................................................................... 4-1
4.1.4 Soil Gas Probe Installation and Sampling ................................. 4-2
4.2 SUMMARY OF ANALYTICAL RESULTS FOR SOIL GAS ............................ 4-2
4.3 INVESTIGATION-DERIVED WASTE........................................................... 4-4
5.0 CONCLUSIONS AND RECOMMENDATIONS ..................................................... 5-1
6.0 REFERENCES ................................................................................................... 6-1
7.0 LIMITATIONS .................................................................................................... 7-1
7.1 GENERAL LIMITATIONS ........................................................................... 7-1
7.2 LIMITATION ON RELIANCE BY THIRD PARTIES ...................................... 7-1
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FIGURES
Figure 1 Site Vicinity Map
Figure 2 Site Plan and Sampling Locations
Figure 3 PCE in Soil Gas
TABLES
Table 1 Sampling Rationale
Table 2 Cumulative Summary of Volatile Organic Compounds in Soil Table 3 Cumulative Summary of Petroleum Hydrocarbons in Soil Table 4 Cumulative Summary of Metals in Soil
Table 5 Cumulative Summary of Volatile Organic Compounds in Soil Gas
APPENDICES
Appendix A Boring Logs
Appendix B Laboratory Analytical Report
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1.0 INTRODUCTION
Farallon Consulting, L.L.C. (Farallon) has prepared this Soil Gas Investigation Report (Soil Gas Report) for Prologis, L.P. (Prologis) to present a summary of results from the soil gas investigation conducted in December 2022 at the property at 5355 East Airport Drive in Ontario, California (herein referred to as the Site) (Figure 1). The soil gas investigation was conducted to provide additional assessment of the potential for vapor intrusion related to tetrachloroethene (PCE), which was detected inconsistently in soil gas during subsurface investigations conducted by Partner Engineering and Science, Inc (Partner) in July 2016 and Farallon in February and September 2022. The scope of work for the historical investigations was based on the recognized environmental conditions and subsurface investigation findings identified in the Partner Phase II Subsurface Investigation Report (2016 SI Report),1 the Farallon Phase I/Phase II Environmental Site Assessment Report (Phase I/II Report),2 and the Farallon Additional Subsurface Investigation Report.3 The potential for constituents of concern (COCs) to be present in Site subsurface media was identified as recognized environmental conditions due to petroleum underground storage tanks (USTs) formerly present in three areas, former and active septic systems, and a vehicle maintenance garage ("Building B"). These features are depicted on Figure 2.
According to the 2016 SI Report, the Phase I/II Report, and the Additional Subsurface Investigation Report, tetrachloroethene (PCE) was detected at concentrations exceeding calculated industrial screening levels using a 0.03 attention factor in soil gas in several areas during the July 2016 and March 2022 sampling events, but not during the September 2022 sampling event. Additional investigation was recommended to address the potential for vapor intrusion conditions at the warehouse proposed for construction at the Site. This soil gas investigation was conducted to provide that additional investigation. Additionally, Prologis requested that methane be screened during the soil gas investigation. The scope of work for the soil gas investigation was presented in Work Change Order 1071-080-002-WCO 0044 and the general locations, depths, rationale for the borings, and analytes are shown in Table 1.
Sample locations at the Site are shown on Figure 2.
This Soil Gas Report has been organized into the following sections:
• Section 2, Site Background, provides a description of the Site, and summarizes pertinent background information regarding its history and previous investigations conducted at the Site.
1 Phase II Subsurface Investigation Report, 5355 East Airport Drive, Ontario, California dated August 16, 2016, prepared for Prologis, Inc. by Partner (2016). 2 Phase I/Phase II Environmental Site Assessment Report, 5355 East Airport Drive, Ontario, California dated March 31, 2022 prepared by Farallon (2022a) for Prologis. 3 Additional Subsurface Investigation Report, 5355 East Airport Drive, Ontario, California dated December 13, 2022 prepared for Prologis, Inc. by Farallon (2022c). 4 Work Change Order 1071-080-002-WCO 004, Master Services Agreement, Farallon Consulting, L.L.C. and Prologis, Inc. dated December 5, 2022 between Gavin Polite Fisco of Prologis and Scott Allin of Farallon (2022b).
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• Section 3, Physical Setting, describes the topography, geology, and hydrogeology of the Site.
• Section 4, Soil Gas Investigation, provides a description of the scope of work conducted as part of the additional soil gas investigation, and a summary of soil gas analytical results.
• Section 5, Conclusions and Recommendations, presents Farallon’s conclusions from the additional subsurface investigation, and recommendations based on the results. • Section 6, References, provides a list of the documents cited in this Soil Gas Report. • Section 7, Limitations, presents Farallon’s standard limitations applicable to this Soil Gas Report.
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2.0 SITE BACKGROUND
This section provides a description of the Site and summarizes pertinent background information regarding its history and previous investigations conducted at the Site.
2.1 SITE DESCRIPTION
The Site consists of two parcels totaling 14.2 acres of land: San Bernardino County Assessor Parcel Nos. 0238-052-20 (Eastern Parcel), and 0238-052-29 (Western Parcel). The Eastern Parcel is occupied by Verhoeven, a grain-processing company, and is developed with five buildings, grain storage silos, and a grain mill area. An office and warehouse building, referred to as “Building A,” is located on the southern portion of the Site. The warehouse portion on the northeastern side of Building A contains a service shop used to repair machinery related to the grain mill. A maintenance shop, referred to as “Building B,” is present on the eastern portion of the Site, and is used for light tractor and forklift services. Additional structures on the Eastern Parcel consist of a warehouse referred to as “Building C” on the north-central portion, used for assorted storage, and two grain storage structures on the southeastern and southwestern portions of the parcel, referred to as Buildings D and E, respectively.
The Western Parcel is occupied by The Scoular Company, a corn storage and distribution facility. The Western Parcel contains exterior grain storage areas, and an office trailer that contains a small hazardous substances storage area on secondary containment.
The Site is primarily asphalt-paved, with some gravel-paved areas on the western parcel.
Access to the Site is gained from East Airport Drive, south of the Site.
A vehicle wash-down area with a sump is present on the northeastern portion of the Eastern Parcel. Three or four septic systems are associated with the Site: two or three on the Eastern Parcel, and one on the Western Parcel. The location of the septic system on the Western Parcel could not be determined from the records reviewed. A 499-gallon propane aboveground storage tank (AST), two 250-gallon diesel fuel ASTs, and a 220-gallon hydraulic oil AST are present on the Eastern Parcel. Two 12,000-gallon “fuel-storage” USTs formerly were located on the north-central portion of the Site near the grain mill area. A 12,000-gallon diesel fuel UST formerly was located southeast of Building C. The area west of Building B was identified as the former location of one or more additional USTs.
2.2 SITE HISTORY
The Site was used as agricultural or grazing land from at least the late 1930s to the early 1970s. By 1973, the Eastern Parcel was developed with small grain storage silos and other features associated with milling operations in the grain mill area. By 1975, grain appeared to be stockpiled in Buildings A through C, located on the southwestern portion of the Site. By 1985 grain storage structures Buildings D and E had been developed. By 2002, grain processing operations at the Site had expanded to the Western Parcel, which included the 3494
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development of three large grain storage silos. The Site has appeared in its current configuration since 2002.
Site occupants have consisted of Verhoeven from 1973 to the present; Chino Grain and Milling, Inc. in 1985; Coast Grain Company from 1990 to 2003; The Scoular Company between 2004 and the present; and JD Heistell and Company in 2009.
2.3 PREVIOUS INVESTIGATIONS
Partner’s 2016 SI Report documented an investigation conducted at the Site. The scope of work consisted of a geophysical survey to identify former on-Site USTs or associated features and reported septic systems, and soil and soil gas sampling to assess for indications of a release from historical Site activities. The geophysical survey identified one large anomaly indicative of a backfilled UST excavation beneath the western canopy of Building B, which generally corresponds to the location of a former UST area. No large metallic features were identified, so Partner concluded that USTs formerly present in the area had been removed.
One large anomaly resembling a septic system was identified north of Building A.
Partner advanced 26 borings with total depths ranging from 1 to 25 feet below ground surface (bgs) for collection of soil and/or soil gas samples. Soil samples were analyzed for total petroleum hydrocarbon carbon chain C6-C40 (TPH-cc) by U.S. Environmental Protection Agency (EPA) Method 8015C and for volatile organic compounds (VOCs) by EPA Method 8260B. Soil gas samples were analyzed for VOCs by either EPA Methods TO-14, TO-15, or 8260B. VOCs and TPH-cc were not detected in soil samples at concentrations exceeding laboratory reporting limits (Tables 2 and 3). VOCs, consisting of PCE, trichloroethene, toluene, ethylbenzene, and xylenes, were detected in soil gas samples at concentrations less than residential and industrial calculated soil gas screening levels in effect at the time the report was completed. Partner concluded that a discernable vapor intrusion condition did not appear to exist at the Site, and that the detections of VOCs in soil gas did not represent a threat to human health or the environment. Partner recommended no further investigation with respect to the on-Site grain-handling facility at the time of the report.
Although the reported concentrations of VOCs in soil gas were less than soil gas screening levels (SGSLs) in effect in 2016 at the time the Partner report was prepared, in April 2020, California Department of Toxic Substances Control (DTSC) Human and Ecological Risk Office (2022) Human Health Risk Assessment Note Number 3 (HHRA Note 3) was updated with the recommendation to use a more-conservative attenuation factor of 0.03 in screening level calculations. PCE concentrations ranging from 68 to 230 micrograms per cubic meter (µg/m3) in soil gas samples collected by Partner in 2016 from sampling locations B5, B6, and SV-14 through SV-16 exceeded the calculated industrial SGSL of 67 µg/m3 using the 0.03 attenuation factor. Additionally, the ethylbenzene concentration of 280 µg/m3 in soil gas sample B4-SG, located west of Building B, exceeded the calculated industrial SGSL of 163 µg/m3 using the 0.03 attenuation factor. These samples were collected west of and beneath Building B at a depth of 4 to 5 feet bgs. Soil gas results from Partner’s 2016 SI Report and 3495
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calculated SGSLs using the 2020 HHRA Note 3 attenuation faction of 0.03 are presented in Table 5.
As part of its Phase I/II due diligence investigation, Farallon conducted soil and soil gas sampling at the Site in March 2022, focusing on assessing former UST areas and septic systems, and the proposed new building footprint for the potential for vapor intrusion issues.
At the time of the assessment, Farallon was informed that an approximately 259,000-squarefoot warehouse would be constructed on the north-central portion of the Site (Figure 2). The scope of work for the Phase II Environmental Site Assessment portion of the investigation included advancement of 12 borings, installation of two subslab gas probes, and installation of 10 temporary soil gas probe locations with single- or multi-depth nested gas points for collection of soil and soil gas samples.
VOCs and TPH-cc were not detected at concentrations exceeding laboratory reporting limits (Tables 2 and 3) in soil samples. Metals were either not detected in soil samples at concentrations exceeding laboratory reporting limits, or at concentrations less than screening levels (Table 4). Soil gas data indicated that PCE was present at concentrations exceeding calculated industrial SGSLs using the 0.03 attenuation factor in soil gas samples collected west of and beneath Building B (samples SS-1, SS-2, SVP-7, and SVP-8), proximate to the location of the former 12,000-gallon diesel fuel UST (sample SVP-5), proximate to the location of the two former 12,000-gallon USTs (sample SVP-1), and proximate to the vehicle washdown area with sump (sample SVP-6) as presented in Table 5. These locations were mapped beneath the planned new building footprint. PCE also was detected at concentrations less than the calculated industrial SGSLs in soil gas in other soil gas samples collected at the Site.
The extent of PCE in soil gas was not fully characterized.
In September 2022, to further assess soil gas beneath the planned building footprint, Farallon advanced nine borings, designated SVP-11 through SVP-19, at the Site within the planned new building footprint. Dual-nested soil gas probes were constructed in each boring to investigate the potential presence of VOCs in soil gas beneath the planned new building. PCE was not detected at concentrations exceeding the laboratory reporting limit of 25 μg/m3 in the soil gas samples collected from the soil gas probes. Ethylbenzene and total xylenes were detected at concentrations less than calculated industrial SGSLs. Because some of the soil gas samples collected in September 2022 were proximate to areas that showed impacts in March 2022, but no impacts were detected in September 2022, Farallon worked with the original analytical laboratory to conduct a data quality review of both analytical data sets. No anomalies in the data sets were found to render the data from either event unusable. Farallon recommended that the areas of highest impacts previously encountered under the proposed building slab be resampled to aid in the determination of whether mitigation measures would be recommended for the proposed building.
PCE in soil gas results are shown on Figure 3.
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3.0 PHYSICAL SETTING
The topography, geology, and hydrogeology of the Site are described in this section.
3.1 TOPOGRAPHY
Farallon reviewed the U.S. Geological Survey topographic map for Guasti, California dated 2018 provided by Environmental Data Resources, Inc. The map depicts the Site at an elevation of approximately 980 feet above mean sea level. Site topography slopes gently downward to the south. Regional topography generally is sloped downward to the south.
3.2 GEOLOGY AND HYDROGEOLOGY
The Site is situated in the San Bernadino Valley of the Peninsular Ranges Geomorphic Province in Southern California. The Peninsular Ranges Province is bounded by the San Gabriel and San Bernardino mountains to the north and the Colorado Desert to the east, extends into lower California beyond the Mexican border to the south, and is bound by the Pacific Ocean to the west. The San Bernardino Mountains are approximately 7 miles north of the Site.
According to the 2016 SI Report, soil beneath the Site generally consists of very fine-grained silty sand from the surface to a depth of approximately 20 feet bgs and transitions to very fine- to coarse-grained poorly graded sand between depths of 20 and 25 feet bgs.
Groundwater was not encountered during Partner’s investigation.
Soil encountered during Farallon’s previous subsurface investigations was described as silty fine to medium sand to the total explored depth of 4 to 10 feet bgs, with an apparent coarse sand and gravel layer at a depth of 10 feet bgs (and as shallow as 5 feet bgs on the eastern portion of the Site at boring SB-2), and intermittent clayey sand to clay lenses approximately 1 foot thick at a depth of between 6 and 7 feet bgs (borings SVP-16 and SVP-19) and 10 to 11 feet bgs (borings SVP-12 and SVP-16). Groundwater was not encountered during drilling.
Soil observed during the December 2022 sampling round can be generally described as silty fine sand with trace medium sand with some sub-angular gravel to the exploration depth of
4.5 feet bgs. Boring logs are provided in Appendix A.
Site-specific groundwater direction and depth information was not available in the records reviewed. Based on information obtained from the previous reports and California State Water Resources Control Board (2022) GeoTracker database and topographic interpretation, groundwater beneath the Site is anticipated to be encountered at a depth of approximately 250 feet bgs, and is estimated to flow to the south.
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4.0 SOIL GAS INVESTIGATION
This section presents the scope of work for the soil gas investigation conducted at the Site in December 2022 and summarizes the results from this and prior soil gas sampling events.
4.1 SCOPE OF WORK
Before field work was initiated, the Site-specific Health and Safety Plan (HASP) was updated, and underground utilities were cleared. Field work consisted of advancing borings and collecting soil gas samples at the Site to provide a better understanding of soil gas impacts detected during previous subsurface investigations. The following sections detail this scope of work.
4.1.1 Health and Safety Plan Preparation
A Site-specific HASP was required under Section 3202 of Title 8 of the California Code of Regulations (8 CCR 3202) for all field activities due to the potential for exposure to hazardous substances. Prior to commencement of field activities, Farallon updated the HASP compliant with the requirements of the Occupational Safety and Health Act of 1970 and 8 CCR 3203.
Personal protection equipment precautions related to COVID-19 were implemented for Farallon personnel during field activities in accordance with Farallon health and safety policy.
4.1.2 Underground Utility Clearance
Prior to commencement of drilling activities, Farallon marked the proposed boring locations at the Site and contacted Dig Alert for public utility notice. Farallon also engaged a private utility location service to pre-screen the proposed boring locations for utilities that may be encountered during advancement using hand tools.
4.1.3 Boring Advancement
Seven borings, designated SVP-20 through SVP-26, were advanced at the Site on December 9, 2022 to investigate the potential presence of VOCs in soil gas beneath the planned new building footprint. The boring locations are shown on Figure 2 and were generally evenly distributed across the planned new building footprint, with select borings placed in previously identified impacted areas. Borings SVP-20, SVP-21, SVP-22, SVP-24, SVP-25, and SVP-26 were advanced proximate to previous locations SVP-2, SVP-1, SVP-4, SVP-5, SVP-8, and SVP7, respectively, to evaluate previous detections of PCE in soil gas. Borings were advanced in exterior locations paved with asphalt or concrete which required coring to access the subsurface. The borings were advanced using a hand-auger to a depth of 4.5 feet bgs to install soil gas probes at 4 feet bgs as described in Section 4.1.4, Soil Gas Probe Installation and Sampling. The general locations, depths, rationale for the borings, and analytes are shown in Table 1.
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The displaced soil was visually inspected and screened by a Farallon geologist using a photoionization detector and was described and logged using the United Soil Classification System (Modified). Physical evidence of soil impacts, including staining and odors, was not observed; photoionization detector readings ranged from 0.1 to 1.0 parts per million. Boring logs with soil descriptions are provided in Appendix A.
4.1.4 Soil Gas Probe Installation and Sampling
Following completion of boring advancement, Farallon converted the borings to temporary soil gas probes. Borings SVP-20 through SVP-26 were constructed with soil gas probes at a depth of 4 feet bgs.
Soil gas probe installation was performed in accordance with the Advisory: Active Soil Gas Investigations dated July 2015 prepared by the California Environmental Protection Agency et al. (2015) (Soil Gas Advisory). The probes consisted of an Airstone microporous gas implant or equivalent connected to 0.25-inch-outside-diameter Nylaflow tubing, finished at the surface with temporary plugs. The annulus around the gas implant was backfilled with approximately 1 foot of screen-washed No. 3 sand, followed by 1 foot of dry #8 granular bentonite, and completed with hydrated #8 granular bentonite to create a seal from the top of the dry granular bentonite to near surface. Soil gas probe construction is illustrated in the boring logs provided in Appendix A; their locations are shown on Figure 2.
The temporary soil gas probes were allowed to equilibrate for 7 days prior to sample collection on December 16, 2022. Soil gas sampling, including observance of equilibration times, performance of shut-in tests, and purging activities, was conducted in accordance with the Soil Gas Advisory. Seven soil gas samples were collected into 1-liter Summa canisters at a rate of 200 milliliters per minute or less. The tracer gas 1,1-difluoroethane (1,1-DFA) was introduced to ambient air surrounding the sampling train by soaking a cotton swab with liquid 1,1-DFA and placing it at the location where the soil gas probe tubing exited the ground.
Upon completion of sample collection at each location, a 1-liter Tedlar bag was filled with soil gas by a syringe from the probe tubing at each soil gas location. Each Tedlar bag was then connected to a calibrated Landtec Gem5000 landfill gas monitor for on-site methane evaluation.
The Summa canisters were transported under chain-of-custody protocols to a Californiacertified laboratory, and were analyzed for VOCs by EPA Method TO-15. The soil gas probes were then abandoned by extracting as much tubing as practical, filling the boring with bentonite grout and restoring the surface to match surrounding conditions.
4.2 SUMMARY OF ANALYTICAL RESULTS FOR SOIL GAS
The soil gas analytical results were compared to DTSC Screening Levels for indoor air, EPA Regional Screening Levels for indoor air, and the San Francisco Water Quality Control Board Environmental Screening Levels for TPH-g, which were adjusted using suggested attenuation factors provided in the Vapor Intrusion Guidance prepared by DTSC and the California 3499
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Environmental Protection Agency (2011). The attenuation factor used for this comparison was
0.03 published in HHRA Note 3. The methane screening results were obtained in percent, and compared to the DTSC screening level for methane of 0.5 percent by volume5 (10 percent of the lower explosive limit for methane).
A summary of soil gas analytical results from December 2022 is provided in Table 5 and PCE in soil gas results are shown on Figure 3. In order to provide a comprehensive understanding of analytical results for the Site, PCE in soil gas from previous investigations is also shown on Figure 3, and analytical results from previous investigations are included in the attached data tables.
Soil gas analytical and methane screening results from the December 2022 sampling event are summarized below. A written summary of previous results can be found in each related previous report.
• PCE was not detected at a concentration exceeding the laboratory reporting limit of
0.1 μg/m3 in soil gas samples collected from locations SVP-20 or SVP-23 on the southwestern and central portions of the planned building, respectively. • PCE was detected at concentrations of 3.5 ug/m3 in SVP-21, 2.6 ug/m3 in SVP-22, 5.7 ug/m3 in SVP-24, 13.0 ug/m3 in SVP-25, and 60.2 ug/m3 in SVP-26, which are less than the calculated industrial SGSL of 67 ug/m3 using the 0.03 attenuation factor.
These samples were collected from beneath the north-central and east-central portions of the planned building. Borings SVP-24, SVP-25, and SVP-26 were located in the immediate vicinity of former borings that contained elevated concentrations of PCE in the soil gas samples collected at a depth of 4 feet bgs in March 2022: 70 ug/m3 in SVP-5, 232 ug/m3 in SVP-8, and 247 ug/m3 in SVP-7, respectively. • Trace concentrations of cyclohexane, trichlorofluoromethane (Freon 11), dichlorodifluoro-methane (Freon 12), ethylbenzene, toluene, total xylenes, 1,2,4- trimethyl-benzene, and carbon disulfide were detected in soil gas samples collected from various locations at concentrations exceeding their laboratory reporting limit of
1.0 μg/m3, but well below their respective calculated industrial SGSLs using the 0.03 attenuation factor;
• Methane was not detected at concentrations exceeding the detection level of 0.1 percent in soil gas samples collected from locations SVP-20 through SVP-26 using a Landtec Gem5000 landfill gas monitor for methane evaluation. • The tracer gas 1,1-DFA was not detected at a concentration exceeding the laboratory reporting limit in the soil gas samples collected from locations SVP-20 through SVP26. 5 Advisory on Methane Assessment and Common Remedies at School Sites dated June 16, 2005, prepared by Department of Toxic Substances Control (2005).
3500
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4.3 INVESTIGATION-DERIVED WASTE
Investigation-derived waste generated during this sampling event consisted of a small amount of excess soil removed from each boring. The excess soil did not display evidence of chemical impact based on visual, olfactory inspection, or photoionization detector screening. Previous soil sample analytical results indicate that Site soil is suitable for on-Site reuse. Excess soil was reused at the Site.
3501
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5.0 CONCLUSIONS AND RECOMMENDATIONS
Farallon conducted a soil gas investigation in December 2022 to further investigate impacts of VOCs previously identified in soil gas beneath the planned new building footprint at the Site.
Previous soil gas data indicated that PCE was present at concentrations exceeding calculated industrial screening levels using the 0.03 attenuation factor in soil gas samples collected beneath and proximate to the planned new building footprint, specifically west of and beneath Building B; proximate to the former location of the 12,000-gallon diesel fuel UST; proximate to the former location of two 12,000 gallon USTs; and proximate to the vehicle washdown area with sump. PCE also was detected at concentrations less than the calculated industrial screening levels in soil gas in other soil gas samples collected at the Site.
For the December 2022 soil gas investigation, seven borings were advanced in the planned new building footprint. Soil gas probes were generally evenly distributed across the planned new building footprint, with selected probes placed proximate to areas previously identified as impacted by PCE. The borings were converted to temporary soil gas probes at a depth of 4 feet bgs and soil gas samples were collected and analyzed for VOCs and methane.
PCE was detected in five of the seven soil gas samples at concentrations exceeding the laboratory reporting limit of 0.1 ug/m3. PCE detections in four of the soil gas samples ranged from 3.5 ug/m3 to 13.0 ug/m3; however, one detection of PCE (60.2 ug/m3 in SVP-26) approached the calculated industrial SGSL of 67 ug/m3 using a 0.3 attenuation factor. The detections of PCE in soil gas samples, which were collocated with soil gas samples collected during previous investigations, were less than detections of PCE in soil gas samples collected in 2016 by Partner and March 2022 by Farallon.
Other VOCs were not found during this investigation to be present in soil gas samples at concentrations approaching applicable screening levels. Methane was not detected in the soil gas samples.
Soil gas sampling at the Site has provided evidence of fluctuating concentrations of PCE. PCE concentrations detected in soil gas samples collected by Partner in July 2016 and by Farallon in March 2022 exceeded the calculated SGSL using a 0.03 attenuation factor at select locations. PCE was not detected above the laboratory reporting limit in soil gas samples collected by Farallon in September 2022. PCE was not detected at concentrations above the laboratory reporting limit or was detected at concentrations less than the calculated SGSL using a 0.03 attenuation factor in soil gas samples collected by Farallon in December 2022.
The variability of reported concentrations of PCE in soil gas between the four soil gas sampling events suggests that PCE concentrations in soil gas may be influenced by variables such as seasonal changes. Because PCE detections in soil gas from the September and December 2022 investigations either were not detected above laboratory reporting limits or were less than the calculated SGSL using a 0.03 attenuation factor, and sampling locations were chosen in areas of known impacts, sampling data from the last two sampling rounds has not established the potential for an unacceptable vapor intrusion risk in the planned future building footprint. Based on the industrial nature of the use of the Site, Farallon recommends 3502
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implementation of a Media Management Plan to address any soil impacts associated with historical activities at the Site that may be encountered during Site redevelopment. 3503
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6.0 REFERENCES
California Department of Toxic Substances Control. 2005. Advisory on Methane Assessment and Common Remedies at School Sites. June 16.
California Department of Toxic Substances Control, Human and Ecological Risk Office. 2022.
Human Health Risk Assessment (HHRA) Note Number 3, DTSC-modified Screening Levels (DTSC-SLs). May.
California Department of Toxic Substances Control, and California Environmental Protection Agency. 2011. Guidance for the Evaluation and Mitigation of Subsurface Vapor Intrusion to Indoor Air (Vapor Intrusion Guidance), Final. October.
California Environmental Protection Agency, Department of Toxic Substances Control, Los Angeles Regional Water Quality Control Board, and San Francisco Regional Water Quality Control Board. 2015. Advisory: Active Soil Gas Investigations. July.
California State Water Resources Control Board. 2022. GeoTracker Database Search. <GeoTracker (ca.gov)>. (November 2022.)
Farallon Consulting, L.L.C. (Farallon). 2022a. Phase I/Phase II Environmental Site Assessment Report, 5355 East Airport Drive, Ontario, California. Prepared for Prologis, Inc. March 31.
———. 2022b. Work Change Order 1071-080-002-WCO 004, Master Services Agreement, Farallon Consulting, L.L.C. and Prologis, Inc. Between Gavin Polite Fisco, Prologis, Inc. and Scott Allin, Farallon Consulting, L.L.C. December 5. ———. 2022c. Additional Subsurface Investigation Report, 5355 East Airport Drive, Ontario, California. Prepared for Prologis, Inc. December 13.
Partner Engineering and Science, Inc. 2016. Phase II Subsurface Soil Gas Report, 5355 East Airport Drive, Ontario, California 91761. Prepared for Prologis. August 16.
U.S. Environmental Protection Agency. 2022. Regional Screening Level Summary Table. <https://www.epa.gov/risk/regional-screening-levels-rsls-generic-tables>. November. 3504
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7.0 LIMITATIONS
7.1 GENERAL LIMITATIONS
The conclusions contained in this report/assessment are based on professional opinions with regard to the subject matter. These opinions have been arrived at in accordance with currently accepted hydrogeologic and engineering standards and practices applicable to this location.
The conclusions contained herein are subject to the following inherent limitations:
• Accuracy of Information. Farallon obtained, reviewed, and evaluated certain information used in this report/assessment from sources that were believed to be reliable. Farallon’s conclusions, opinions, and recommendations are based in part on such information. Farallon’s services did not include verification of its accuracy or authenticity. Should the information upon which Farallon relied prove to be inaccurate or unreliable, Farallon reserves the right to amend or revise its conclusions, opinions, and/or recommendations.
• Reconnaissance and/or Characterization. Farallon performed a reconnaissance and/or characterization of the Site that is the subject of this report/assessment to document current conditions. Farallon focused on areas deemed more likely to exhibit hazardous materials conditions. Contamination may exist in other areas of the Site that were not investigated or were inaccessible. Site activities beyond Farallon’s control could change at any time after the completion of this report/assessment.
For the foregoing reasons, Farallon cannot and does not warrant or guarantee that the Site is free of hazardous or potentially hazardous substances or conditions, or that latent or undiscovered conditions will not become evident in the future. Farallon’s observations, findings, and opinions can be considered valid only as of the date of the report.
This report/assessment has been prepared in accordance with the contract for services between Farallon and Prologis, L.P. and currently accepted industry standards. No other warranties, representations, or certifications are made.
7.2 LIMITATION ON RELIANCE BY THIRD PARTIES
Reliance by third parties is prohibited. This report/assessment has been prepared for the exclusive use of Prologis, L.P. to address the unique needs of Prologis, L.P. at the Site at a specific point in time.
This is not a general grant of reliance. No one other than Prologis, L.P. may rely on this report unless Farallon agrees in advance to such reliance in writing. Any unauthorized use, interpretation, or reliance on this report/assessment is at the sole risk of that party, and Farallon will have no liability for such unauthorized use, interpretation, or reliance. 3505
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FIGURES
SOIL GAS INVESTIGATION REPORT
5355 East Airport Drive
Ontario, California
Farallon PN: 1071-080 (Task 2)
3506
Checked By: PS Disc Reference:
FARALLON PN: 1071-080-004
SITE VICINITY MAP
5355 EAST AIRPORT DRIVE
ONTARIO, CALIFORNIA
Washington
Issaquah | Bellingham | Seattle
Oregon
Portland | Baker City
California
CONSULTING Oakland | Irvine
Your Challenges. Our Priority. | farallonconsulting.com Farallon
Drawn By: jjones Date: 12/29/2022
Q:\Projects\1071 Prologis\080 2021 SoCal Due Diligence II\002 Airport Dr\Mapfiles\SSI_2022-12\Figure-01_SiteVicinity.mxd FIGURE 1
REFERENCE: 7.5 MINUTE USGS QUADRANGLE GUASTI, CALIFORNIA, DATED 2013 0 5,000
SCALE IN FEET
ONTARIO
SITE LOCATION
3507
Service Layer Credits: Source: Esri, Maxar,
Earthstar Geographics, and the GIS User
Community
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" "
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"
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R
R
R R
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EAST AIRPORT DRIVE
G
BUILDING E;
GRAIN STORAGE
G
BUILDING A;
OFFICES/WAREHOUSE
WESTERN PARCEL EASTERN PARCEL
GBUILDING D:
GRAIN STORAGE
G
BUILDING B;
MAINTENANCE/VEHICLE
REPAIR SHOP
G
FORMER UST AREA
GRAIN
STORAGE
G
BUILDING C;
WAREHOUSE
G
FORMER 12,000-GALLON
DIESEL UST (REMOVED)
G
VEHICLE WASH DOWN
AREA WITH SUMP G
TWO FORMER
12,000-GALLON USTs
(REMOVED)
RAIL LINE
SV-24
SV-22
SV-26
SVP-13
SV-23 SV-19
SV-25
B9
B1
B2
SV-21 B8
B7
SVP-18
SVP-25 B3
SVP-9
SV-13
SV-17
SVP-2
SVP-20
SVP-15 SV-20
SVP-8
SVP-19 B4
B6
B5 SS-2
SV-16
SVP-12 SVP-3
SVP-24 SVP-7
SV-14
SVP-26
SS-1
SVP-23
SVP-5
SB-2
SV-15
SVP-10
SVP-11
B10
B11 SV-18
SVP-14
SVP-4
SVP-22
SVP-16
SVP-6
SB-1
SVP-1
SVP-21
SVP-17
B12
CONSULTING
Checked By: KL Disc Reference:
FIGURE 2
SITE PLAN AND SAMPLING LOCATIONS
5355 EAST AIRPORT DRIVE
ONTARIO, CALIFORNIA
Your Challenges. Our Priority. | farallonconsulting.com Farallon
Washington
Issaquah | Bellingham | Seattle
Oregon
Portland | Baker City
California
Oakland | Irvine
Drawn By: lmurock Date: 2/1/2023
Q:\Projects\1071 Prologis\080 2021 SoCal Due Diligence II\002 Airport Dr\Mapfiles\SSI_2022-12\Figure-02_SitePlan.mxd ALL LOCATIONS ARE APPROXIMATE. FARALLON PN: 1071-080-004 FIGURES WERE PRODUCED IN COLOR.
GRAYSCALE COPIES MAY NOT
REPRODUCE ALL ORIGINAL INFORMATION.
³ 0 100
SCALE IN FEET
LEGEND
R") SOIL GAS PROBE (FARALLON, DECEMBER 2022)
R"" SOIL GAS PROBE (FARALLON, SEPTEMBER 2022)
R"" SOIL GAS PROBE (FARALLON, MARCH 2022)
!( SUBSLAB SOIL GAS PROBE (FARALLON, MARCH 2022)
!P BORING (FARALLON, MARCH 2022)
!P SOIL GAS PROBE (PARTNER, 2016)
")T TRANSFORMER
FORMER SITE FEATURE
OBSERVED SEPTIC TANK LOCATION
GROUND-PENETRATING RADAR SCAN AREA
PROPOSED BUILDING FOOTPRINT
SITE BOUNDARY
SAN BERNARDINO COUNTY PARCEL BOUNDARY
G
FIGURE 3 EXTENT
AST =
GPR =
UST =
GPR SURVEY AREA - 2022 (NO UST FOUND)
ABOVEGROUND STORAGE TANK
GROUND-PENETRATING RADAR
UNDERGROUND STORAGE TANK
3508
Service Layer Credits: Source: Esri, Maxar,
Earthstar Geographics, and the GIS User
Community
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R
R
R R
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R
R
EASTERN PARCEL
BUILDING A;
OFFICES/WAREHOUSE
G
BUILDING D:
GRAIN STORAGE
BUILDING E;
GRAIN STORAGE
G
BUILDING B;
MAINTENANCE/VEHICLE
REPAIR SHOP
G
FORMER UST AREA
BUILDING C;
WAREHOUSE G
FORMER 12,000-GALLON
DIESEL UST (REMOVED)
G
VEHICLE WASH DOWN
AREA WITH SUMP
G
TWO FORMER
12,000-GALLON USTs
(REMOVED)
G
FORMER BRINE POND
(ESTIMATED)
SV-24
7/29/2016|5.0'|<100
SV-22
7/29/2016|5.0'|<100 SV-26
7/29/2016|5.0'|<100
SV-19
7/29/2016|5.0'|<100
SV-23
7/29/2016|5.0'|<100
B4
7/21/2016|5.0'|<350
SVP-9
3/11/2022|4.0'|24
SV-25
7/29/2016|5.0'|<100
B7
7/21/2016|5.0'|<6.9
B3
7/21/2016|5.0'|<350
SV-13
7/29/2016|5.0'|<100
SV-21
7/29/2016|5.0'|<100
B8
7/21/2016|5.0'|44
SVP-18
9/20/2022|4.0'|<25
9/20/2022|10.0'|<25 SVP-25
12/16/2022|4.0'|13.0
B5
7/21/2016|5.0'|100
SV-17
7/29/2016|5.0'|<100
SVP-20
12/16/2022|4.0'|<1.0
SVP-15
9/20/2022|4.0'|<25
9/20/2022|10.0'|<25
SVP-19
9/20/2022|4.0'|<25
9/20/2022|10.0'|<25
SVP-8
3/11/2022|4.0'|232
SS-2
3/11/2022|0.5'|194
SVP-2
3/11/2022|4.0'|27 SVP-3
3/11/2022|4.0'|<20
SV-20
7/29/2016|5.0'|<100
SVP-24
12/16/2022|4.0'|5.7 SVP-7
3/11/2022|4.0'|247 B6
7/21/2016|5.0'|68 SV-16
7/29/2016|4.0'|180
SVP-26
12/16/2022|4.0'|60.2
SV-14
7/29/2016|4.0'|230
SS-1
3/11/2022|0.5'|220
SVP-5
3/11/2022|4.0'|70
3/11/2022|10.0'|234 SV-15
7/29/2016|5.0'|120
SVP-23
12/16/2022|4.0'|<1.0
SVP-10
3/11/2022|4.0'|31
3/11/2022|8.0'|63
SVP-22
12/16/2022|4.0'|2.6
SV-18
7/29/2016|5.0'|<100
SVP-6
3/11/2022|4.0'|97
3/11/2022|8.0'|34
SVP-14
9/20/2022|4.0'|<25
9/20/2022|10.0'|<25 SVP-21
12/16/2022|4.0'|3.5
SVP-4
3/11/2022|4.0'|62
SVP-16
9/20/2022|4.0'|<25
9/20/2022|10.0'|<25
SVP-1
3/11/2022|4.0'|31
3/11/2022|10.0'|157
SVP-17
9/20/2022|4.0'|<25
9/20/2022|10.0'|<25
CONSULTING
Checked By: KL Disc Reference:
FIGURE 3
PCE IN SOIL GAS
5355 EAST AIRPORT DRIVE
ONTARIO, CALIFORNIA
Your Challenges. Our Priority. | farallonconsulting.com Farallon
Washington
Issaquah | Bellingham | Seattle
Oregon
Portland | Baker City
California
Oakland | Irvine
Drawn By: lmurock Date: 2/1/2023
Q:\Projects\1071 Prologis\080 2021 SoCal Due Diligence II\002 Airport Dr\Mapfiles\SSI_2022-12\Figure-03_SoilGas-PCE.mxd ALL LOCATIONS ARE APPROXIMATE. FARALLON PN: 1071-080-004 FIGURES WERE PRODUCED IN COLOR.
GRAYSCALE COPIES MAY NOT
REPRODUCE ALL ORIGINAL INFORMATION.
³ 0 60
SCALE IN FEET
LEGEND
R") SOIL GAS PROBE (FARALLON, DECEMBER 2022)
R"" SOIL GAS PROBE (FARALLON, SEPTEMBER 2022)
R"" SOIL GAS PROBE (FARALLON, MARCH 2022)
!( SUBSLAB SOIL GAS PROBE (FARALLON, MARCH 2022)
!P SOIL GAS PROBE (PARTNER, 2016)
")T TRANSFORMER
FORMER SITE FEATURE
OBSERVED SEPTIC TANK LOCATION
GROUND-PENETRATING RADAR SCAN AREA
PROPOSED BUILDING FOOTPRINT
SITE BOUNDARY
SAN BERNARDINO COUNTY PARCEL BOUNDARY
AST =
GPR =
UST =
GPR SURVEY AREA - 2022 (NO UST FOUND)
ABOVEGROUND STORAGE TANK
GROUND-PENETRATING RADAR
UNDERGROUND STORAGE TANK
NOTES:
SAMPLE DATE, DEPTH, AND ANALYTICAL RESULTS AS:
SAMPLE DATE | SAMPLE DEPTH IN FEET BELOW GROUND SURFACE | PCE SOIL GAS ANALYTICAL RESULTS IN MICROGRAMS PER CUBIC METER.
BOLD =
< =
PCE =
DENOTES CONCENTRATIONS THAT EXCEED THE COMMERCIAL
SUBSLAB/SOIL GAS VAPOR INTRUSION ENVIRONMENTAL
SCREENING LEVEL.
DENOTES ANALYTE NOT DETECTED AT OR EXCEEDING THE
LISTED REPORTING LIMIT.
TETRACHLOROETHENE
3509
P:\1071 Prologis\1071080 2021 SoCal Due Diligence II\002 5355 E Airport Dr\Deliverables\2023 Soil Gas Report\2023.02.14_5355 E. Airport Dr_Soil Gas Report_Farallon.docx TABLES
SOIL GAS INVESTIGATION REPORT
5355 East Airport Drive
Ontario, California
Farallon PN: 1071-080 (Task 2)
3510
Table 1
Sampling Rationale
5355 East Airport Road
Ontario, California
Farallon PN: 1071-080-004
Sample ID Location Rationale Boring Depth
(feet bgs)
Sample Depth
(feet bgs)
Matrix
to be
Sampled
Analysis
SVP-20 Planned New Building
Footprint
Assess the potential for soil gas
at former soil vapor point SVP-2 4.5 4 Soil Gas VOCs via TO-15 Methane
SVP-21 Planned New Building
Footprint
Assess the potential for soil gas
at former soil vapor point SVP-1 4.5 4 Soil Gas VOCs via TO-15 Methane
SVP-22 Planned New Building
Footprint
Assess the potential for soil gas
at former soil vapor point SVP-4 4.5 4 Soil Gas VOCs via TO-15 Methane
SVP-23 Planned New Building
Footprint
Assess the potential for soil gas
under the future building 4.5 4 Soil Gas VOCs via TO-15 Methane
SVP-24 Planned New Building
Footprint
Assess the potential for soil gas
at former soil vapor point SVP-5 4.5 4 Soil Gas VOCs via TO-15 Methane
SVP-25 Planned New Building
Footprint
Assess the potential for soil gas
at former soil vapor point SVP-8 4.5 4 Soil Gas VOCs via TO-15 Methane
SVP-26 Planned New Building
Footprint
Assess the potential for soil gas
at former soil vapor point SVP-7 4.5 4 Soil Gas VOCs via TO-15 Methane
NOTES:
bgs = below ground surface
VOC = volatile organic compound
TO-15 = US Environmental Protection Agency Method TO-15 \\EDGEFS02\Projects\1071 Prologis\1071080 2021 SoCal Due Diligence II\002 5355 E Airport Dr\Deliverables\2023 Soil Gas Report\Tables\1071-080_5355-EAirportDr_Tables_2023-02-03 1 of 1
3511
Table 2
Cumulative Summary of Volatile Organic Compounds in Soil 5355 East Airport Road
Ontario, California
Farallon PN: 1071-080-002 PCE Benzene
TolueneEthylbenzeneTotal XylenesOther VOCs
B1 Partner B1-1 1.0 7/21/2016 < 0.0050 < 0.0050 < 0.0050 < 0.0050 < 0.015 ND B2 Partner B2-1 1.0 7/21/2016 < 0.0044 < 0.0044 < 0.0044 < 0.0044 < 0.0131 ND B3 Partner B3-15 15.0 7/21/2016 < 0.0043 < 0.0043 < 0.0043 < 0.0043 < 0.0129 ND B4 Partner B4-10 10.0 7/21/2016 < 0.0044 < 0.0044 < 0.0044 < 0.0044 < 0.0132 ND B5 Partner B5-15 15.0 7/21/2016 < 0.0041 < 0.0041 < 0.0041 < 0.0041 < 0.0123 ND B6 Partner B6-10 10.0 7/21/2016 < 0.0050 < 0.0050 < 0.0050 < 0.0050 < 0.015 ND B7 Partner B7-10 10.0 7/21/2016 < 0.0043 < 0.0043 < 0.0043 < 0.0043 < 0.013 ND B8 Partner B8-10 10.0 7/21/2016 < 0.0044 < 0.0044 < 0.0044 < 0.0044 < 0.0133 ND B9 Partner B9-1 1.0 7/21/2016 < 0.0050 < 0.0050 < 0.0050 < 0.0050 < 0.015 ND B10 Partner B10-1 1.0 7/21/2016 < 0.0050 < 0.0050 < 0.0050 < 0.0050 < 0.015 ND B11 Partner B11-1 1.0 7/21/2016 < 0.0050 < 0.0050 < 0.0050 < 0.0050 < 0.015 ND B12 Partner B12-1 1.0 7/21/2016 < 0.0050 < 0.0050 < 0.0050 < 0.0050 < 0.015 ND SB-1 Farallon SB-1-10' 10.0 3/4/2022 < 0.0010 < 0.0010 < 0.0010 < 0.0010 < 0.0030 ND SB-2 Farallon SB-1-10' 10.0 3/4/2022 < 0.0010 < 0.0010 < 0.0010 < 0.0010 < 0.0030 ND SVP-1 Farallon SVP-1-10' 10.0 3/4/2022 < 0.0010 < 0.0010 < 0.0010 < 0.0010 < 0.0030 ND SVP-2 Farallon SVP-2-4' 4.0 3/4/2022 < 0.0010 < 0.0010 < 0.0010 < 0.0010 < 0.0030 ND SVP-3 Farallon SVP-3-4' 4.0 3/4/2022 < 0.0010 < 0.0010 < 0.0010 < 0.0010 < 0.0030 ND SVP-4 Farallon SVP-4-4' 4.0 3/4/2022 < 0.0010 < 0.0010 < 0.0010 < 0.0010 < 0.0030 ND SVP-5 Farallon SVP-5-10' 10.0 3/4/2022 < 0.0010 < 0.0010 < 0.0010 < 0.0010 < 0.0030 ND Farallon SVP-6-4' 4.0 3/4/2022 < 0.0010 < 0.0010 < 0.0010 < 0.0010 < 0.0030 ND Farallon SVP-6-8' 8.0 3/4/2022 < 0.0010 < 0.0010 < 0.0010 < 0.0010 < 0.0030 ND SVP-7 Farallon SVP-7-4' 4.0 3/4/2022 < 0.0010 < 0.0010 < 0.0010 < 0.0010 < 0.0030 ND SVP-8 Farallon SVP-8-4' 4.0 3/4/2022 < 0.0010 < 0.0010 < 0.0010 < 0.0010 < 0.0030 ND SVP-9 Farallon SVP-9-4' 4.0 3/4/2022 < 0.0010 < 0.0010 < 0.0010 < 0.0010 < 0.0030 ND SVP-10 Farallon SVP-10-8' 8.0 3/4/2022 < 0.0010 < 0.0010 < 0.0010 < 0.0010 < 0.0030 ND
2.7 1.4 5,300 25 2,500 Various
NOTES:
< denotes analyte not detected at or exceeding the reporting limit listed. Farallon = Farallon Consulting, LLC 1 Depth in feet below ground surface. ND = not detected at or above the laboratory reporting limit Partner = Partner Engineering and Science, Inc.
PCE = Tetrachloroethene
RSL = Regional Screening Level
VOCs = volatile organic compounds
SVP-6
Commercial/Industrial Soil RSL3
2 Analyzed by U.S. Environmental Protection Agency (EPA) Method 8260B. Only select VOCs shown in table; see lab reports for full list of analytes.
3 June 2020 (Revised May 2022) Department of Toxic Substances Control (DTSC) Regional Screening Levels (RSLs). If DTSC RSLs do not exist, November 2022 EPA RSLs were used and noted in blue text.
Analytical Results (milligrams per kilogram)2
Sample
Location Sampled By
Sample
Identification
Sample
Depth
(feet)1 Sample Date
\\EDGEFS02\Projects\1071 Prologis\1071080 2021 SoCal Due Diligence II\002 5355 E Airport Dr\Deliverables\2023 Soil Gas Report\Tables\1071-080_5355-EAirportDr_Tables_2023-02-03 1 of 1
3512
Table 3
Cumulative Summary of Total Petroleum Hydrocarbons in Soil 5355 East Airport Road
Ontario, California
Farallon PN: 1071-080-002
TPH-g
(C4 - C12)
TPH-d
(C13 - C22)
TPH-o
(C23 - C40)
B1 Partner B1-1 1.0 7/21/2016 < 10 < 10 < 10
B2 Partner B2-1 1.0 7/21/2016 < 10 < 10 < 10
B3 Partner B3-15 15.0 7/21/2016 < 10 < 10 < 10
B4 Partner B4-10 10.0 7/21/2016 < 10 < 10 < 10
B5 Partner B5-15 15.0 7/21/2016 < 10 < 10 < 10
B6 Partner B6-10 10.0 7/21/2016 < 10 < 10 < 10
B7 Partner B7-10 10.0 7/21/2016 < 10 < 10 < 10
B8 Partner B8-10 10.0 7/21/2016 < 10 < 10 < 10
B9 Partner B9-1 1.0 7/21/2016 < 10 < 10 < 10
B10 Partner B10-1 1.0 7/21/2016 < 10 < 10 < 10
B11 Partner B11-1 1.0 7/21/2016 < 10 < 10 < 10
B12 Partner B12-1 1.0 7/21/2016 < 10 < 10 < 10
SB-1 Farallon SB-1-10' 10.0 3/4/2022 < 0.20 < 10.0 < 10.0 SB-2 Farallon SB-1-10' 10.0 3/4/2022 < 0.20 < 10.0 < 10.0 SVP-1 Farallon SVP-1-10' 10.0 3/4/2022 < 0.20 < 10.0 < 10.0 SVP-2 Farallon SVP-2-4' 4.0 3/4/2022 < 0.20 --- ---
SVP-3 Farallon SVP-3-4' 4.0 3/4/2022 < 0.20 --- ---
SVP-4 Farallon SVP-4-4' 4.0 3/4/2022 < 0.20 --- ---
SVP-5 Farallon SVP-5-10' 10.0 3/4/2022 < 0.20 < 10.0 < 10.0 Farallon SVP-6-4' 4.0 3/4/2022 < 0.20 < 10.0 < 10.0
Farallon SVP-6-8' 8.0 3/4/2022 < 0.20 < 10.0 < 10.0
SVP-7 Farallon SVP-7-4' 4.0 3/4/2022 < 0.20 < 10.0 < 10.0 SVP-8 Farallon SVP-8-4' 4.0 3/4/2022 < 0.20 < 10.0 < 10.0 SVP-9 Farallon SVP-9-4' 4.0 3/4/2022 < 0.20 < 10.0 < 10.0 SVP-10 Farallon SVP-10-8' 8.0 3/4/2022 < 0.20 < 10.0 < 10.0 100 100 1,000
500 1,000 10,000
1,000 10,000 50,000
NOTES:
< denotes analyte not detected at or exceeding the reporting limit listed. C = carbon range (number of carbons) --- denotes sample not analyzed. Farallon = Farallon Consulting, LLC 1 Depth in feet below ground surface. MSSL = maximum soil screening level Partner = Partner Engineering and Science, Inc.
TPH-d = total petroleum hydrocarbons as diesel
TPH-g = total petroleum hydrocarbons as gasoline
TPH-o = total petroleum hydrocarbons as oil
Analytical Results (milligrams per kilogram)2
MSSL ( < 20 feet Above Groundwater)3
SVP-6
3 Los Angeles Regional Water Quality Control Board April 27, 2004 MSSLs for groundwater at depths of less than 20 feet, 20 to 150 feet, and greater than 150 feet below ground surface.
Sampled By
2 Analyzed by U.S. Environmental Protection Agency (EPA) Method 8015M (2022 samples) or 8015C (2016 samples).
MSSL (20-150 feet Above Groundwater)3
MSSL ( > 150 feet Above Groundwater)3
Sample
Location
Sample
Identification
Sample
Depth
(feet)1 Sample Date