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Attachment 3.8.1 - Appendix H1 Phase I Environmental Site Assessment Parcel A.pdf

Chula Vista City Council
November 18, 2025

Document
Attachment 3.8.1 - Appendix H1 Phase I Environmental Site Assessment Parcel A.pdf
Meeting
November 18, 2025
Body
Chula Vista City Council
Pages
172
Original file
66.3 MB
Text extracted from the city's file for reading and search. Open the original on pub-chulavista.escribemeetings.com. That file is the official record.

Map ID
(see Figure 2)
Areas or Features of Potential
Environmental Concern
Location/
Building No.

Size
(gallons unless
otherwise
specified)
Status
Potential Chemicals
Associated with
Feature/Area
Previous Soil
Assessment Summary
COPCs Above
GPLs and/or
Comm/Ind
DTSC‐SLs in
Soil
Soil
Characterized?
Proper COPCs
And Depths
Analyzed?
Comments References
3‐09598 Machining Coolant UST (Blanchard Grinder) 29 1,345 closed TPH, VOCs Closure sampling, UT‐22, B29‐V19, PW‐14 NYY The Blanchard Grinder was a machine that sat above a concrete sump that served as a reservoir for coolant that was ciruclated through it while operating.ABC ‐ Active in 1998
URS ‐ Closed on 6/15/99 based on TRPH results
ABC Plate 9, URS Phase I,
H&A Phase I, URS Phase II,
H&A Vapor Survey
204 Wastewater Clarifier 29 U inactive TPH, VOCs, Metals B29‐17, PW‐16 N Y Y No issues in B29‐17. VOCs detected did not exceed their respective Vapor ESLs. H&A Phase I, H&A Phase II 200 Clarifier/Sump 100 U inactive TPH, VOCs, Metals UT‐03, B99‐02, B100‐V03, PW‐01B NYY H&A reported in Phase I "uncertain if it remains present." Soil samples collected at 1 and 5 feet. No VOCs or PCBs detected. TPH detected at 1 foot at 170 mg/kg.

Identified as a REC in H&A Phase I because groundwater was not sampled. No VOCs in soil vapor exceeding their respective Vapor ESLs.

URS Phase II, H&A Phase II,
H&A Vapor Survey, GSI Phase II
T‐29‐1 (201) Photo Lab Collection AST 29 1,100 removed TPH, Metals B29‐04 N Y Y Polyethylene wastewater collection tank from Photo Lab H&A Phase I, H&A Phase II, H&A Vapor Survey T‐29‐2 (202) R&D Lab Collection AST 29 500 removed TPH, Metals B29‐06 N Y Y Polyethylene wastewater collection tank from R&D Labs H&A Phase I, H&A Phase II T‐29‐(HTS 1) (203) HTSD Line (4 ASTs) 29 163 each removed None No soil samples collected near feature. NNN
Consisted of 4 ASTs: alkaline cleaning, hot water seal, rinse and wastewater. No issues in downgradient groundwater at UT‐19. A soil vapor sample could not be collected at PW‐10 due to no‐flow conditions.

The line was moved from the South Campus to this location in about 2000. the line was secondarily contained, showed no evidence of leakage, contained no hazardous materials and was infrequently used.

For these reasons, there is no data gap.

H&A Phase I, URS Phase II,
GSI Phase II
226 LPG Tanks (2) 29 436 each removed/ inactive None NA N NA NA LPG tanks do not require investigation. URS Phase I, H&A Phase I 161 Former Paint Booth (two locations) 29 U removed VOCs, Metals UT‐25, B29‐10, B29‐V13
(north location)
B29‐15, B29‐V16
(south location)
NYY
ABC ‐ Active in 1998
URS ‐  North location not accessible; UT‐25 advanced down gradient and outside building to evaluate potential effects on groundwater.

URS ‐ Removed in 2013. Relocated to southern part of Building 29, then relocated to Building 1 south of Machine Shop.

H&A ‐ Certain VOCs exceeded their respective Vapor ESLs at south location.

ABC Plate 9, URS Phase I,
H&A Phase I, URS Phase II,
H&A Phase II,
H&A Vapor Survey,
GSI Phase II
Aboveground Storage Tanks/ Paint Booths
Underground Storage Tanks/Underground Vessels
HALEY & ALDRICH, INC.
2021_04_HAI_Table 1_Hist Features Parcel A_F.xlsx APRIL 2021 TABLE 1

HISTORICAL ENVIRONMENTAL FEATURES
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 2 of 4 ends

Map ID
(see Figure 2)
Areas or Features of Potential
Environmental Concern
Location/
Building No.

Size
(gallons unless
otherwise
specified)
Status
Potential Chemicals
Associated with
Feature/Area
Previous Soil
Assessment Summary
COPCs Above
GPLs and/or
Comm/Ind
DTSC‐SLs in
Soil
Soil
Characterized?
Proper COPCs
And Depths
Analyzed?
Comments References
300 Small Degreaser 29 U removed VOCs
B29‐V03, B29‐V04,
B29‐24, B29‐26,
PW‐03, PW‐06

TCE N Y
There was a small degreasing unit located in the northern portion of Building 29 in the Former Maintenance Department. Certain VOCs in soil vapor exceed their respective Vapor ESLs. There is a data gap for the degreaser. Further delineation can be conducted as needed when the new Owner excavates soil to construct a new loading dock.

H&A Data Gap Assessment, GSI
Phase II
301 Cold Solvent Degreaser 29 U closed VOCs B29‐17, PW‐16 N Y Y Graymills Model T4330F Parts Washer
H&A noted in Phase I "Obtained from retired APCD permit, 1998." Recent discussion with Rohr personnel indicates that this degreaser was in the southern portion of Building 29 in small tool repair.

VOCs detected did not exceed their respective Vapor ESLs.

H&A Phase I and IIs,
GSI Phase II
304A Defiance Boring Mill (Col. F17) 29 NA removed VOCs, PCBs B29‐V06, B29‐32A, ‐32B, ‐ 32C NYY H&A reported in the Phase I that photographs of the mills and lathes in the tooling area showed fluid on the floor surface.

H&A Phase I, H&A Phase II,
H&A Vapor Survey,
H&A Data Gap Assessment,
GSI Phase II
304B Froriep Vertical Turret Lathe (Col. L4) 29 NA removed VOCs, PCBs PW‐14, B29‐33A, ‐33B, ‐ 33C NYY H&A reported in the Phase I that photographs of the mills and lathes in the tooling area showed fluid on the floor surface. VOCs in soil vapor exceed Vapor ESLs in PW‐14. H&A Phase I, H&A Phase II, H&A Vapor Survey, H&A Data Gap Assessment, GSI Phase II 304C King Vertical Turret Lathe (Col. I4) 29 NA removed VOCs, PCBs B29‐V17, B29‐34A, ‐34B, ‐ 34C NYY H&A reported in the Phase I that photographs of the mills and lathes in the tooling area showed fluid on the floor surface.

H&A Phase I, H&A Phase II,
H&A Vapor Survey,
H&A Data Gap Assessment,
GSI Phase II
304D
Herbert Devleig Jig Mill, Moore
Vertical Jig Borer, Oerlikon Jig
Boring and Pratt & Whitney Jig
Boring (Col. L3)
29 NA removed VOCs, PCBs B29‐V19, B29‐35A, ‐35B and ‐35C NYY H&A reported in the Phase I that photographs of the mills and lathes in the tooling area showed fluid on the floor surface. VOCs in soil vapor exceed Vapor ESLs in B29‐V19.

H&A Phase I, H&A Phase II,
H&A Vapor Survey,
H&A Data Gap Assessment,
GSI Phase II
See Map Label Former Maintenance Department 29 NA NA TPH, VOCs Downgradient
(UT‐23, UT‐24), B29‐V03
through ‐V08 and ‐V10,
B29‐22 through ‐29,
PW‐02 through‐07

TCE N Y
H&A Phase I reported that oils and potentially solvents were histroically used in a portion of Building 29. Certain VOCs in soil vapor exceed their respective Vapor ESLs. The former Maintenance Department is a data gap. Further delineation can be conducted as needed when the new Owner excavates soil to construct a new loading dock.

H&A Phase I, URS Phase II,
H&A Vapor Survey,
H&A Data Gap Assessment,
GSI Phase II
DegreasersOther Operations/Equipment
HALEY & ALDRICH, INC.
2021_04_HAI_Table 1_Hist Features Parcel A_F.xlsx APRIL 2021 TABLE 1

HISTORICAL ENVIRONMENTAL FEATURES
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 3 of 4 ends

Map ID
(see Figure 2)
Areas or Features of Potential
Environmental Concern
Location/
Building No.

Size
(gallons unless
otherwise
specified)
Status
Potential Chemicals
Associated with
Feature/Area
Previous Soil
Assessment Summary
COPCs Above
GPLs and/or
Comm/Ind
DTSC‐SLs in
Soil
Soil
Characterized?
Proper COPCs
And Depths
Analyzed?
Comments References
See Map Label Lead‐ and Petroleum Hydrocarbon‐ containing Soil 350‐360 Bay Boulevard NA NA TPH, Pb DEH‐related Assessment and Remediation, BB‐14, ‐15 and ‐16 YYY TPH‐ and lead‐containing soil investigated and remediated under DEH VAP oversight. See report text for additional details. DEH VAP issued and NFA letter in 2001. WCC Data Compilation Report, H&A Phase I, H&A Phase II, Partner Phase I 145 Unleaded Gasoline UST 99/100 10,000 closed TPHg, BTEX B99‐01, B100‐V01 N Y Y URS reported this feature as closed prior to Rohr ownership. No VOCs present in soil vapor above their respective Vapor ESLs. ABC Plate 9, URS Phase I, H&A Phase I, H&A Phase II, H&A Vapor Survey 146 Diesel Fuel UST 99/100 10,000 closed TPHd B99‐01, B100‐V01 N Y Y URS reported this feature as closed prior to Rohr ownership. No VOCs present in soil vapor above their respective Vapor ESLs. ABC Plate 9, URS Phase I, H&A Phase I, H&A Phase II, H&A Vapor Survey 147 Waste Oil UST 99/100 1,000 closed TPH, Metals B99‐01, B100‐V01 N Y Y URS reported this feature as closed prior to Rohr ownership. No VOCs present in soil vapor above their respective Vapor ESLs. ABC Plate 9, URS Phase I, H&A Phase I, H&A Phase II, H&A Vapor Survey 148 Waste Solvent UST 99/100 100 closed VOCs, TPH B99‐01, B100‐V01 NYY URS reported this feature as closed prior to Rohr ownership. No VOCs present in soil vapor above their respective Vapor ESLs. ABC Plate 9, URS Phase I, H&A Phase I, H&A Phase II, H&A Vapor Survey See Map Label, Gray
Shading Possible Former Lumber Yard 29 NA NA Phenols B29‐08 through ‐11, PW‐ 11, PW‐12 B29‐V11, B29‐V13
NYY
H&A reported in the Phase I that historical documents and photos suggested a lumber yard occupied a portion of the Building 29 Area in the late 1940s and may have engaged in wood treating prior to Rohr's ownership. No phenols detected. VOCs exceed soil vapor ESLs in PW‐11 and PW‐12. This is a data gap for soil vapor.

H&A Phase I, H&A Phase II
See Map Stippling
and Label Former Shallow Swale 29 NA NA VOCs
B15, UT‐23, UT‐24,
B29‐01, ‐03, ‐05, ‐07,
B29‐V06, ‐V08 & V10,
PW‐07
NYY
H&A reported in the Phase I that 1948 aerial photograph showed a shallow depression filled with debris on the southern and western perimeter of the northern quarter of the Building 29 Area that may be current location of storm drain. Investigated through data gap assessment in former Maintenance Department.

H&A Phase I, H&A Phase II,H&A Data Gap Assessment
Pre‐Rohr Features
HALEY & ALDRICH, INC.
2021_04_HAI_Table 1_Hist Features Parcel A_F.xlsx APRIL 2021 TABLE 1

HISTORICAL ENVIRONMENTAL FEATURES
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 4 of 4 ends

Map ID
(see Figure 2)
Areas or Features of Potential
Environmental Concern
Location/
Building No.

Size
(gallons unless
otherwise
specified)
Status
Potential Chemicals
Associated with
Feature/Area
Previous Soil
Assessment Summary
COPCs Above
GPLs and/or
Comm/Ind
DTSC‐SLs in
Soil
Soil
Characterized?
Proper COPCs
And Depths
Analyzed?
Comments References
See Map Label Former Truck Engine Repair with potential hydraulic lifts 100 NA NA TPH, VOCs UT‐03, B99‐02, B100‐V01, ‐V02, ‐V03, PW‐01B NYY H&A reported in the Phase I that Building 100 contained three bays. The bays were used for truck repair. URS indicated that there was a 30‐inch deep work pit in the bays. No VOCs in soil vapor exceeded their respective Vapor ESLs.

URS Phase I and IIs,
H&A Phase I and IIs,
H&A Vapor Survey,
GSI Phase II
See Map Label Western Drainage Swale 29, 99, and 100 NA NA Metals, VOCs, PCBs, PAHs UT‐03, UT‐18,
UT‐19, UT‐20, UT‐21,
UT‐66
NYY
Certain PAHs exceeded commercial/industrial screening criteria in soil associated with railroad right‐of‐way. This is not Rohr property. URS Phase I and IIs See Map Label,
Tan Shading Former Agricultural Property Use
350, 360, 364
and 368 Bay
Boulevard, 29,
99,
and 100
NA NA Metals, OCPs
BB‐14 through ‐24,
B99‐01 through ‐04,
and B29‐01 through ‐07
with associated step‐out
borings
As Y Y
H&A reported vacant land was previously used for agricultural purposes for citrus and row crops prior to 1950s and identified agricultural property use as a REC. H&A evaluated OCPs and arsenic in surface soil during Phase IIs. Only arsenic present above site‐specific background at Building 29. Partner identified the ongoing investigation under SDRWQCB oversight as a REC for vacant parcels (350, 360, 364 and 368 Bay Boulevard) , but did not specifically identify former agricultural property use as a REC.

URS Phase I and IIs,
H&A Phase I and IIs,
H&A Data Gap Assessment
Partner Phase I
UST ‐ Underground storage tank VOCs ‐ volatile organic compounds AST ‐ Aboveground storage tank Metals ‐Title 22 metals
UV ‐ Underground vessel TCE ‐ trichloroethene
Y ‐ Yes OCPs ‐ organochlorine pesticides
N ‐ No TPH ‐ total petroleum hydrocarbons
NA ‐ Not applicable PAHs ‐ Polynuclear Aromatic Hydrocarbons U ‐ Unknown TPHd ‐ TPH diesel range organics
µg/kg ‐ micrograms per kilogram TPHg ‐ TPH gasoline range organics µg/L ‐ micrograms per liter PCBs ‐ Polychlorinated biphenyls bgs ‐ below ground surface BTEX ‐ Benzene, toluene, ethylbenzene and xylenes DEH ‐ San Diego County Department of Environmental Health As ‐ Arsenic SDRWQCB ‐ San Diego Regional Water Quality Control Board Map ID is the Rohr tank number or number assigned by Adrian Brown Consultants (1998) or URS Corporation (2013) or Haley & Aldrich (2020). The Map IDs are noted on Figure 2.

1. Adrian Brown Consultants, Inc. 1998. ASTM Phase I Site Assessment, B.F. Goodrich Aerospace, Foot of H Street, Chula Vista, California. June 4.

2. Woodward‐Clyde International‐Americas. 1998. Data Compilation and Evaluation Report, Volume I, Rohr, Inc. Chula Vista, California. May 27.

3. URS Corporation. 2013. Phase I Environmental Site Assessment, UTAS ‐ Chula Vista, Chula Vista, California. April 2.

4. URS Corporation. 2015. Supplemental Remedial Investigation Report, Rohr, Inc. – North Campus, 850 Lagoon Drive, Chula Vista, California. May 1.

5. Haley & Aldrich Inc. 2016. ASTM Phase I Environmental Site Assessment, Rohr, Inc., Property IDs 7 and 15, Chula Vista, California. July 21.

6. Haley & Aldrich, Inc. 2018. Phase II Environmental Site Assessment, Buildings 99 and 29, 850 Lagoon Drive, Chula Vista, California, GeoTracker Global ID# T10000011095. January 11.

7. Haley & Aldrich, Inc. 2018. Sub‐slab and Focused Soil Vapor Survey Report, Rohr, Inc. – Eastern Parcels, Buildings 29, 99 and 100, Chula Vista, California. September 6.

8. Haley & Aldrich Inc. 2020. Data Gap Assessment Report, Rohr, Inc. ‐ Parcel A, Building 29, Chula Vista, California. February 18.

9. GSI Environmental Inc. 2020. Limited Phase II Screening Site Investigation, Rohr, Inc, a Collins Aerospace Company, Parcel A North Campus, 850 Lagoon Drive and 390 Bay Boulevard. Chula Vista, California. September 11.

10. Partner Engineering and Science, Inc. 2020. Phase I Environmental Site Assessment Report, Bay Boulevard – Parcel A, 350, 360. 364 and 368 Bay Boulevard, Chula Vista, CA 91910. December 28.

Notes and Abbreviations:

Other Operations/Equipment
HALEY & ALDRICH, INC.
2021_04_HAI_Table 1_Hist Features Parcel A_F.xlsx APRIL 2021 TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 1 of 102 ends

Location B11 B12 B15 B29‐01 B29‐01 B29‐02 B29‐02 B29‐02A B29‐02A B29‐02B Sample Name B11‐2.5 B12‐2.5 OMPPA‐B15‐5 B29‐01‐1 B29‐01‐2 B29‐02‐1 B29‐02‐2 B29‐02A‐010 B29‐02A‐030 B29‐02B‐010 Sample Date 7/26/2005 7/26/2005 9/13/2005 6/27/2016 6/27/2016 6/27/2016 6/27/2016 1/9/2020 1/9/2020 1/9/2020 Sample Depth 2.5 (ft) 2.5 (ft) 5 (ft) 0.5 ‐ 1 (ft) 1.5 ‐ 2 (ft) 0.5 ‐ 1 (ft) 1.5 ‐ 2 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) Metals (mg/kg) GPL DTSC TTLC
Antimony 7.84 ‐ 500 ‐‐‐ < 0.145 < 0.155 < 0.147 < 0.147 ‐‐‐ Arsenic 24.3 0.36/82 500 ‐‐‐ 4.23 1.89 23.3 1.37 < 0.46 3.04 < 0.46 Barium 43000 ‐ 10,000 ‐‐‐ 72.5 58.4 154 123 ‐‐‐
Beryllium ‐ 6,900 75 ‐‐‐ 0.329 0.359 0.415 0.343 ‐‐‐
Cadmium 970 4,000 100 ‐‐‐ 0.438 J 0.348 J 0.251 J 0.288 J ‐‐‐ Chromium 660 ‐ 2,500 ‐‐‐ 14.3 15.9 8.06 16.1 ‐‐‐
Chromium VI (Hexavalent) 30 6.2 500
Cobalt ‐‐ 8,000 ‐‐‐ 9 11.7 2.83 9.67 ‐‐‐
Copper 5600 ‐ 2,500 ‐‐‐ 19.8 9.28 6.4 9.05 ‐‐‐
Lead 232 320 1,000 ‐‐‐ 9.55 4.33 9.21 4.42 ‐‐‐
Mercury 2.1 4.4 20 ‐‐‐ < 0.00618 0.00919 J < 0.00607 < 0.00568 ‐‐‐ Molybdenum ‐‐ 3,500 ‐‐‐ < 0.128 < 0.137 0.346 < 0.131 ‐‐‐ Nickel 3400 64,000 2,000 ‐‐‐ 8.17 7.63 4.26 7.1 ‐‐‐
Selenium ‐‐ 100 ‐‐‐ < 0.291 < 0.312 0.706 J < 0.297 ‐‐‐ Silver ‐‐ 500 ‐‐‐ < 0.0832 < 0.0893 0.106 J < 0.0849 ‐‐‐ Thallium ‐‐ 700 ‐‐‐ < 0.147 < 0.158 0.439 J < 0.15 ‐‐‐
Vanadium ‐‐ 2,400 ‐‐‐ 41.4 49.3 18 54.5 ‐‐‐
Zinc ‐‐ 5,000 ‐‐‐ 35.1 26.6 32.8 27.9 ‐‐‐
‐
PCBs (mg/kg)
Aroclor‐1016 (PCB‐1016) ‐ 17 ‐‐ ‐ ‐ < 0.021 < 0.021 < 0.021 < 0.021 ‐‐‐ Aroclor‐1221 (PCB‐1221) ‐ 0.53 ‐‐ ‐ ‐ < 0.043 < 0.043 < 0.042 < 0.043 ‐‐‐ Aroclor‐1232 (PCB‐1232) ‐ 0.49 ‐‐ ‐ ‐ < 0.025 < 0.025 < 0.025 < 0.025 ‐‐‐ Aroclor‐1242 (PCB‐1242) ‐ 0.58 ‐‐ ‐ ‐ < 0.037 < 0.037 < 0.037 < 0.037 ‐‐‐ Aroclor‐1248 (PCB‐1248) ‐ 0.58 ‐‐ ‐ ‐ < 0.032 < 0.032 < 0.032 < 0.032 ‐‐‐ Aroclor‐1254 (PCB‐1254) ‐ 0.59 ‐‐ ‐ ‐ < 0.032 < 0.032 < 0.032 < 0.032 ‐‐‐ Aroclor‐1260 (PCB‐1260) ‐ 0.6 ‐‐ ‐ ‐ < 0.031 < 0.031 < 0.03 < 0.031    ‐ ‐ Aroclor‐1262 (PCB‐1262) ‐‐‐ ‐ ‐ ‐ < 0.035 < 0.035 < 0.035 < 0.035 ‐‐‐ Aroclor‐1268 (PCB‐1268) ‐‐‐ ‐ ‐ ‐ < 0.034 < 0.034 < 0.033 < 0.034 ‐‐‐ Total PCBs 130 0.58 50 ‐‐‐ < 0.043 < 0.043 < 0.042 < 0.043 ‐‐‐ ‐
PEST (mg/kg)
4,4'‐DDD ‐ 6.2 1.0 ‐‐‐‐‐ < 0.0024 ‐‐‐‐
4,4'‐DDE ‐ 9.3 1.0 ‐‐‐‐‐ < 0.0022 ‐‐‐‐
4,4'‐DDT ‐ 7.1 1.0 ‐‐‐‐‐ < 0.0022 ‐‐‐‐
Aldrin ‐ 0.18 1.4 ‐‐‐‐‐ < 0.0022 ‐‐‐‐
alpha‐BHC ‐ 0.24 ‐‐ ‐ ‐ ‐ ‐ < 0.0037 ‐‐‐‐
beta‐BHC ‐ 0.82 ‐‐ ‐ ‐ ‐ ‐ < 0.0025 ‐‐‐‐
Chlordane ‐ 6.1 2.5 ‐‐‐‐‐ < 0.026 ‐‐‐‐
delta‐BHC ‐‐‐ ‐ ‐ ‐ ‐ ‐ < 0.0044 ‐‐‐‐
Dieldrin ‐ 0.093 8.0 ‐‐‐‐‐ < 0.0022 ‐‐‐‐
Endosulfan I ‐ 6,000 ‐‐ ‐ ‐ ‐ ‐ < 0.002 ‐‐‐‐
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 2 of 102 ends

Location B11 B12 B15 B29‐01 B29‐01 B29‐02 B29‐02 B29‐02A B29‐02A B29‐02B Sample Name B11‐2.5 B12‐2.5 OMPPA‐B15‐5 B29‐01‐1 B29‐01‐2 B29‐02‐1 B29‐02‐2 B29‐02A‐010 B29‐02A‐030 B29‐02B‐010 Sample Date 7/26/2005 7/26/2005 9/13/2005 6/27/2016 6/27/2016 6/27/2016 6/27/2016 1/9/2020 1/9/2020 1/9/2020 Sample Depth 2.5 (ft) 2.5 (ft) 5 (ft) 0.5 ‐ 1 (ft) 1.5 ‐ 2 (ft) 0.5 ‐ 1 (ft) 1.5 ‐ 2 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
PEST (mg/kg) ‐
Endosulfan II ‐ 6,000 ‐‐ ‐ ‐ ‐ ‐ < 0.0024 ‐‐‐‐
Endosulfan sulfate ‐ 11,000 ‐‐ ‐ ‐ ‐ ‐ < 0.0026 ‐‐‐‐
Endrin ‐ 160 0.2 ‐‐‐‐‐ < 0.0024 ‐‐‐‐
Endrin aldehyde ‐‐‐ ‐ ‐ ‐ ‐ ‐ < 0.003 ‐‐‐‐Endrin ketone ‐‐‐ ‐ ‐ ‐ ‐ ‐ < 0.0025 ‐‐‐‐ gamma‐BHC (Lindane) ‐ 2 4.0 ‐‐‐‐‐ < 0.0022 ‐‐‐‐
Heptachlor ‐ 0.63 4.7 ‐‐‐‐‐ < 0.0022 ‐‐‐‐
Heptachlor epoxide ‐ 0.33 ‐‐ ‐ ‐ ‐ ‐ < 0.0037 ‐‐‐‐
Methoxychlor ‐ 2600 100 ‐‐‐‐‐ < 0.0027 ‐‐‐‐
Toxaphene ‐ 1.2 5 ‐‐‐‐‐ < 0.045 ‐‐‐‐
‐
SVOCs (mg/kg)
1,2,4‐Trichlorobenzene 0.818 35 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
1,2‐Dichlorobenzene 28 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
1,3‐Dichlorobenzene ‐‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
1,4‐Dichlorobenzene 0.23 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
1‐Methylnaphthalene ‐ 30 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
2,2'‐oxybis(2‐Chloropropane) ‐‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
2,4,5‐Trichlorophenol ‐ 53,000 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
2,4,6‐Trichlorophenol ‐ 21 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
2,4‐Dichlorophenol ‐ 1,600 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
2,4‐Dimethylphenol ‐ 11,000 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
2,4‐Dinitrophenol ‐ 1,100 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
2,4‐Dinitrotoluene ‐‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
2,6‐Dichlorophenol ‐ 4.7 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
2,6‐Dinitrotoluene ‐ 0.99 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
2‐Chloronaphthalene ‐ 27,000 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
2‐Chlorophenol ‐ 3,900 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
2‐Methylnaphthalene ‐ 1,300 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
2‐Methylphenol (o‐Cresol) ‐ 26,000 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 2‐Nitroaniline ‐ 5,200 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
2‐Nitrophenol ‐‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐3,3'‐Dichlorobenzidine ‐ 0.93 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 3‐Nitroaniline ‐‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
4,6‐Dinitro‐2‐methylphenol ‐ 42 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
4‐Bromophenyl phenyl ether ‐‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
4‐Chloro‐3‐methylphenol ‐ 53,000 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
4‐Chloroaniline ‐ 7.4 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
4‐Chlorophenyl phenyl ether ‐‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
4‐Nitroaniline ‐ 74 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
4‐Nitrophenol ‐‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 3 of 102 ends

Location B11 B12 B15 B29‐01 B29‐01 B29‐02 B29‐02 B29‐02A B29‐02A B29‐02B Sample Name B11‐2.5 B12‐2.5 OMPPA‐B15‐5 B29‐01‐1 B29‐01‐2 B29‐02‐1 B29‐02‐2 B29‐02A‐010 B29‐02A‐030 B29‐02B‐010 Sample Date 7/26/2005 7/26/2005 9/13/2005 6/27/2016 6/27/2016 6/27/2016 6/27/2016 1/9/2020 1/9/2020 1/9/2020 Sample Depth 2.5 (ft) 2.5 (ft) 5 (ft) 0.5 ‐ 1 (ft) 1.5 ‐ 2 (ft) 0.5 ‐ 1 (ft) 1.5 ‐ 2 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
SVOCs (mg/kg) ‐
Acenaphthene ‐ 23,000 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
Acenaphthylene ‐‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐Aniline ‐ 260 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ Anthracene ‐ 130,000 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
Azobenzene ‐‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐Benzidine ‐ 0.003 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ Benzo(a)anthracene ‐ 12 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
Benzo(a)pyrene 14 1.3 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐Benzo(b)fluoranthene ‐ 13 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ Benzo(g,h,i)perylene ‐‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐Benzo(k)fluoranthene ‐ 210,000 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ Benzoic acid ‐ 2,100,000 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
Benzyl Alcohol ‐ 53,000 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
bis(2‐Chloroethoxy)methane ‐ 1,600 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ bis(2‐Chloroethyl)ether ‐ 0.47 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
bis(2‐Ethylhexyl)phthalate 57 110 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
Butyl benzylphthalate ‐ 780 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
Chrysene ‐ 1,300 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
Dibenz(a,h)anthracene ‐ 0.31 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
Dibenzofuran ‐ 650 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
Diethyl phthalate ‐ 420,000 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐Dimethyl phthalate ‐‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ Di‐n‐butylphthalate ‐ 53,000 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
Di‐n‐octyl phthalate ‐ 5,300 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐Fluoranthene ‐ 18,000 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ Fluorene ‐ 17,000 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
Hexachlorobenzene ‐ 0.86 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
Hexachlorobutadiene ‐ 5.3 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
Hexachlorocyclopentadiene ‐‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐Hexachloroethane ‐‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐Indeno(1,2,3‐cd)pyrene ‐ 13 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ Isophorone ‐ 1,600 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
m,p‐Cresols ‐‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
Naphthalene ‐ 6.5 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
Nitrobenzene ‐‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐N‐Nitrosodimethylamine ‐ 0.53 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ N‐Nitrosodi‐n‐propylamine ‐ 0.21 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
N‐Nitrosodiphenylamine ‐ 300 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
Pentachlorophenol 0.0717 2 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐Phenanthrene ‐‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐Phenol ‐ 160,000 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ Pyrene ‐ 13,000 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
Pyridine ‐ 530 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 4 of 102 ends

Location B11 B12 B15 B29‐01 B29‐01 B29‐02 B29‐02 B29‐02A B29‐02A B29‐02B Sample Name B11‐2.5 B12‐2.5 OMPPA‐B15‐5 B29‐01‐1 B29‐01‐2 B29‐02‐1 B29‐02‐2 B29‐02A‐010 B29‐02A‐030 B29‐02B‐010 Sample Date 7/26/2005 7/26/2005 9/13/2005 6/27/2016 6/27/2016 6/27/2016 6/27/2016 1/9/2020 1/9/2020 1/9/2020 Sample Depth 2.5 (ft) 2.5 (ft) 5 (ft) 0.5 ‐ 1 (ft) 1.5 ‐ 2 (ft) 0.5 ‐ 1 (ft) 1.5 ‐ 2 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
TPH (mg/kg)
PHC as Gasoline 5,400 97 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
Total Petroleum Hydrocarbons (C6) ‐‐‐ ‐ ‐ ‐ < 1.2 < 1.3 < 1.3 < 1.3 ‐‐‐ Total Petroleum Hydrocarbons (C7) ‐‐‐ ‐ ‐ ‐ < 1.2 < 1.3 < 1.3 < 1.3 ‐‐‐ Total Petroleum Hydrocarbons (C8) ‐‐‐ ‐ ‐ ‐ < 1.2 < 1.3 < 1.3 < 1.3 ‐‐‐ Total Petroleum Hydrocarbons (C9‐C10) ‐‐‐ ‐ ‐ ‐ < 1.2 < 1.3 < 1.3 < 1.3 ‐‐‐ Total Petroleum Hydrocarbons (C11‐C12) ‐‐‐ ‐ ‐ ‐ < 1.2 < 1.3 < 1.3 < 1.3 ‐‐‐ Total Petroleum Hydrocarbons (C13‐C14) ‐‐‐ ‐ ‐ ‐ < 1.2 < 1.3 < 1.3 < 1.3 ‐‐‐ Total Petroleum Hydrocarbons (C15‐C16) ‐‐‐ ‐ ‐ ‐ < 1.2 < 1.3 < 1.3 < 1.3 ‐‐‐ Total Petroleum Hydrocarbons (C17‐C18) ‐‐‐ ‐ ‐ ‐ < 1.2 < 1.3 < 1.3 < 1.3 ‐‐‐ Total Petroleum Hydrocarbons (C19‐C20) ‐‐‐ ‐ ‐ ‐ < 1.2 < 1.3 < 1.3 < 1.3 ‐‐‐ Total Petroleum Hydrocarbons (C21‐C22) ‐‐‐ ‐ ‐ ‐ < 1.2 < 1.3 1.4 J < 1.3 ‐‐‐ Total Petroleum Hydrocarbons (C23‐C24) ‐‐‐ ‐ ‐ ‐ < 1.2 < 1.3 4.3 J < 1.3 ‐‐‐ Total Petroleum Hydrocarbons (C25‐C28) ‐‐‐ ‐ ‐ ‐ 1.5 J < 1.3 5.3 < 1.3 ‐‐‐ Total Petroleum Hydrocarbons (C29‐C32) ‐‐‐ ‐ ‐ ‐ 6.5 < 1.3 27 < 1.3 ‐‐‐ Total Petroleum Hydrocarbons (C33‐C36) ‐‐‐ ‐ ‐ ‐ 5.1 < 1.3 33 < 1.3 ‐‐‐ Total Petroleum Hydrocarbons (C37‐C40) ‐‐‐ ‐ ‐ ‐ < 1.2 < 1.3 < 1.3 < 1.3 ‐‐‐ Total Petroleum Hydrocarbons (C41‐C44) ‐‐‐ ‐ ‐ ‐ < 1.2 < 1.3 < 1.3 < 1.3 ‐‐‐ Total Petroleum Hydrocarbons (C6‐C44) ‐‐‐ ‐ ‐ ‐ 13 < 1.3 71 < 1.3 ‐‐‐ Total Petroleum Hydrocarbons (C10‐C28) Diesel ‐‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ Total Petroleum Hydrocarbons (C10‐C28) DRO ‐‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ Total Petroleum Hydrocarbons (>C28‐C44) ‐‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ Gasoline C6‐C8 (calculated) 2,900 ‐‐ ‐ ‐ ‐ < 1.2 < 1.3 < 1.3 < 1.3 ‐‐‐ Diesel C9‐C16 (calculated) 5,400 97 ‐‐ ‐ ‐ < 1.2 < 1.3 < 1.3 < 1.3 ‐‐‐ Oil C17‐C32 (calculated) 7,300 2,400 ‐‐ ‐ ‐ 8 < 1.3 38 < 1.3 ‐‐‐ ‐
VOCs (mg/kg)
1,1,1,2‐Tetrachloroethane ‐ 8.8 ‐ < 0.005 < 0.005 < 0.005 < 0.00025 < 0.00024 < 0.00024 < 0.00025 ‐‐‐ 1,1,1‐Trichloroethane 1.7 7,200 ‐ < 0.005 < 0.005 < 0.005 < 0.00023 < 0.00023 < 0.00022 < 0.00024 ‐‐‐ 1,1,2,2‐Tetrachloroethane ‐ 2.7 ‐ < 0.005 < 0.005 < 0.005 < 0.00035 < 0.00035 < 0.00034 < 0.00036 ‐‐‐ 1,1,2‐Trichloroethane 0.04 ‐‐ < 0.005 < 0.005 < 0.005 < 0.00036 < 0.00036 < 0.00035 < 0.00037 ‐‐‐ 1,1‐Dichloroethane 0.56 16 ‐ < 0.005 < 0.005 < 0.005 < 0.00022 < 0.00021 < 0.00021 < 0.00022 ‐‐‐ 1,1‐Dichloroethene 0.071 350 ‐ < 0.005 < 0.005 < 0.005 < 0.00035 < 0.00035 < 0.00034 < 0.00036 ‐‐‐ 1,1‐Dichloropropene ‐‐‐ < 0.005 < 0.005 < 0.005 < 0.00034 < 0.00033 < 0.00033 < 0.00034 ‐‐‐1,2,3‐Trichlorobenzene ‐ 300 ‐ < 0.01 < 0.01 < 0.01 < 0.00093 < 0.00092 < 0.00091 < 0.00096 ‐‐‐ 1,2,3‐Trichloropropane ‐ 0.021 ‐ < 0.005 < 0.005 < 0.005 < 0.00085 < 0.00084 < 0.00083 < 0.00087 ‐‐‐ 1,2,3‐Trimethylbenzene ‐‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
1,2,4‐Trichlorobenzene 0.818 35 ‐ < 0.005 < 0.005 < 0.005 < 0.00032 < 0.00031 < 0.00031 < 0.00032 ‐‐‐ 1,2,4‐Trimethylbenzene ‐‐‐ < 0.005 < 0.005 < 0.005 < 0.0006 < 0.00059 < 0.00058 < 0.00061 ‐‐‐ 1,2‐Dibromo‐3‐chloropropane (DBCP) ‐ 0.057 ‐ < 0.01 < 0.01 < 0.01 < 0.0018 < 0.0017 < 0.0017 < 0.0018 ‐‐‐ 1,2‐Dibromoethane (Ethylene Dibromide) ‐ 0.16 ‐ < 0.005 < 0.005 < 0.005 < 0.00026 < 0.00026 < 0.00025 < 0.00027 ‐‐‐1,2‐Dichlorobenzene 28 ‐‐ < 0.005 < 0.005 < 0.005 < 0.00023 < 0.00023 < 0.00023 < 0.00024 ‐‐‐ 1,2‐Dichloroethane 0.0028 ‐‐ < 0.005 < 0.005 < 0.005 < 0.00032 < 0.00032 < 0.00031 < 0.00033 ‐‐‐1,2‐Dichloropropane ‐‐‐ < 0.005 < 0.005 < 0.005 < 0.00045 < 0.00044 < 0.00044 < 0.00046 ‐‐‐ HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 5 of 102 ends

Location B11 B12 B15 B29‐01 B29‐01 B29‐02 B29‐02 B29‐02A B29‐02A B29‐02B Sample Name B11‐2.5 B12‐2.5 OMPPA‐B15‐5 B29‐01‐1 B29‐01‐2 B29‐02‐1 B29‐02‐2 B29‐02A‐010 B29‐02A‐030 B29‐02B‐010 Sample Date 7/26/2005 7/26/2005 9/13/2005 6/27/2016 6/27/2016 6/27/2016 6/27/2016 1/9/2020 1/9/2020 1/9/2020 Sample Depth 2.5 (ft) 2.5 (ft) 5 (ft) 0.5 ‐ 1 (ft) 1.5 ‐ 2 (ft) 0.5 ‐ 1 (ft) 1.5 ‐ 2 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
VOCs (mg/kg) ‐
1,3,5‐Trimethylbenzene ‐‐‐ < 0.005 < 0.005 < 0.005 < 0.00056 < 0.00055 < 0.00055 < 0.00057 ‐‐‐ 1,3‐Dichlorobenzene ‐‐‐ < 0.005 < 0.005 < 0.005 < 0.00018 < 0.00018 < 0.00018 < 0.00018 ‐‐‐ 1,3‐Dichloropropane ‐ 2,200 ‐ < 0.005 < 0.005 < 0.005 < 0.00026 < 0.00025 < 0.00025 < 0.00026 ‐‐‐ 1,4‐Dichloro‐2‐butene ‐‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
1,4‐Dichlorobenzene 0.23 ‐‐ < 0.005 < 0.005 < 0.005 < 0.00023 < 0.00022 < 0.00022 < 0.00023 ‐‐‐ 2,2‐Dichloropropane ‐‐‐ < 0.005 < 0.005 < 0.005 < 0.00034 < 0.00033 < 0.00033 < 0.00035 ‐‐‐ 2‐Butanone (Methyl Ethyl Ketone) ‐‐‐ < 0.05 < 0.05 < 0.05 < 0.0039 < 0.0038 < 0.0037 < 0.0039 ‐‐‐ 2‐Chlorotoluene ‐ 2,500 ‐ < 0.005 < 0.005 < 0.005 < 0.00024 < 0.00023 < 0.00023 < 0.00024 ‐‐‐ 2‐Hexanone ‐‐‐ < 0.05 < 0.05 < 0.05 < 0.0018 < 0.0018 < 0.0018 < 0.0018 ‐‐‐ 2‐Phenylbutane (sec‐Butylbenzene) ‐ 12,000 ‐ < 0.005 < 0.005 < 0.005 < 0.00059 < 0.00058 < 0.00057 < 0.0006 ‐‐‐ 4‐Chlorotoluene ‐ 2,300 ‐ < 0.005 < 0.005 < 0.005 < 0.00022 < 0.00021 < 0.00021 < 0.00022 ‐‐‐ 4‐Methyl‐2‐Pentanone (Methyl Isobutyl Ketone) ‐‐‐ < 0.05 < 0.05 < 0.05 < 0.0044 < 0.0043 < 0.0043 < 0.0045 ‐‐‐ Acetone ‐‐‐ < 0.05 < 0.05 < 0.05 < 0.0064 < 0.0063 < 0.0062 < 0.0065 ‐‐‐ Acrylonitrile ‐‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐Allyl chloride ‐‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ Benzene 0.019 1.4 ‐ < 0.005 < 0.005 < 0.005 < 0.00013 < 0.00013 < 0.00013 < 0.00014 ‐‐‐ Bromobenzene ‐‐‐ < 0.005 < 0.005 < 0.005 < 0.00021 < 0.00021 < 0.00021 < 0.00022 ‐‐‐ Bromodichloromethane ‐ 1.3 ‐ < 0.005 < 0.005 < 0.005 < 0.00024 < 0.00023 < 0.00023 < 0.00024 ‐‐‐ Bromoform ‐ 86 ‐ < 0.005 < 0.005 < 0.005 < 0.00081 < 0.0008 < 0.00079 < 0.00083 ‐‐‐ Bromomethane (Methyl Bromide) ‐‐‐ < 0.025 < 0.025 < 0.025 < 0.0096 < 0.0095 < 0.0094 < 0.0099 ‐‐‐ Carbon disulfide ‐‐‐ < 0.05 < 0.05 < 0.05 < 0.00031 < 0.00031 < 0.0003 < 0.00032 ‐‐‐Carbon tetrachloride ‐ 2.9 ‐ < 0.005 < 0.005 < 0.005 < 0.00029 < 0.00028 < 0.00028 < 0.0003 ‐‐‐ Chlorobenzene 2 ‐‐ < 0.005 < 0.005 < 0.005 < 0.00023 < 0.00023 < 0.00022 < 0.00023 ‐‐‐ Chlorobromomethane ‐ 4.1 ‐ < 0.005 < 0.005 < 0.005 < 0.00071 < 0.00069 < 0.00069 < 0.00072 ‐‐‐ Chloroethane ‐‐‐ < 0.005 < 0.005 < 0.005 < 0.0015 < 0.0015 < 0.0015 < 0.0016 ‐‐‐ Chloroform (Trichloromethane) ‐‐‐ < 0.005 < 0.005 < 0.005 < 0.00024 < 0.00024 < 0.00024 < 0.00025 ‐‐‐ Chloromethane (Methyl Chloride) ‐‐‐ < 0.025 < 0.025 < 0.025 < 0.00031 < 0.00031 < 0.0003 < 0.00032 ‐‐‐ cis‐1,2‐Dichloroethene 4.9 84 ‐ < 0.005 < 0.005 < 0.005 < 0.00029 < 0.00028 < 0.00028 < 0.00029 ‐‐‐ cis‐1,3‐Dichloropropene ‐‐‐ < 0.005 < 0.005 < 0.005 < 0.00026 < 0.00026 < 0.00025 < 0.00027 ‐‐‐ cis‐1,4‐Dichloro‐2‐butene ‐‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
Cymene (p‐Isopropyltoluene) ‐ 1,600 ‐ < 0.005 < 0.005 < 0.005 < 0.00064 < 0.00063 < 0.00063 < 0.00066 ‐‐‐ Dibromochloromethane ‐‐‐ < 0.005 < 0.005 < 0.005 < 0.00058 < 0.00057 < 0.00057 < 0.0006 ‐‐‐ Dibromomethane ‐‐‐ < 0.005 < 0.005 < 0.005 < 0.00079 < 0.00078 < 0.00077 < 0.00081 ‐‐‐ Dichlorodifluoromethane (CFC‐12) ‐‐‐ < 0.005 < 0.005 < 0.005 < 0.00045 < 0.00045 < 0.00044 < 0.00046 ‐‐‐ Diisopropyl ether (DIPE) ‐‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
Ethylbenzene 7.7 ‐‐ < 0.005 < 0.005 < 0.005 < 0.00015 < 0.00015 < 0.00015 < 0.00016 ‐‐‐ Hexachlorobutadiene ‐ 5.3 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
Isopropylbenzene (Cumene) ‐‐‐ < 0.005 < 0.005 < 0.005 < 0.00056 < 0.00055 < 0.00054 < 0.00057 ‐‐‐ m,p‐Xylenes 6 ‐‐ < 0.005 < 0.005 < 0.005 < 0.00027 < 0.00027 < 0.00027 < 0.00028 ‐‐‐ Methyl Tert Butyl Ether ‐‐‐ < 0.005 < 0.005 < 0.005 < 0.0003 < 0.0003 < 0.00029 < 0.00031 ‐‐‐Methylene chloride 0.019 26 ‐ < 0.05 < 0.05 < 0.05 < 0.0014 < 0.0013 < 0.0013 < 0.0014 ‐‐‐ Naphthalene ‐ 6.5 ‐ < 0.05 < 0.05 < 0.05 < 0.00083 < 0.00082 < 0.00081 < 0.00085 ‐‐‐ n‐Butylbenzene ‐‐‐ < 0.005 < 0.005 < 0.005 < 0.00016 < 0.00016 < 0.00016 < 0.00016 ‐‐‐ HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 6 of 102 ends

Location B11 B12 B15 B29‐01 B29‐01 B29‐02 B29‐02 B29‐02A B29‐02A B29‐02B Sample Name B11‐2.5 B12‐2.5 OMPPA‐B15‐5 B29‐01‐1 B29‐01‐2 B29‐02‐1 B29‐02‐2 B29‐02A‐010 B29‐02A‐030 B29‐02B‐010 Sample Date 7/26/2005 7/26/2005 9/13/2005 6/27/2016 6/27/2016 6/27/2016 6/27/2016 1/9/2020 1/9/2020 1/9/2020 Sample Depth 2.5 (ft) 2.5 (ft) 5 (ft) 0.5 ‐ 1 (ft) 1.5 ‐ 2 (ft) 0.5 ‐ 1 (ft) 1.5 ‐ 2 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
VOCs (mg/kg) ‐
n‐Propylbenzene ‐‐‐ < 0.005 < 0.005 < 0.005 < 0.00051 < 0.0005 < 0.0005 < 0.00052 ‐‐‐ o‐Xylene 6 ‐‐ < 0.005 < 0.005 < 0.005 < 0.00057 < 0.00056 < 0.00055 < 0.00058 ‐‐‐ PHC as Gasoline 5,400 97 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
Styrene ‐ 32,000 ‐ < 0.005 < 0.005 < 0.005 < 0.00062 < 0.00061 < 0.0006 < 0.00063 ‐‐‐ Tert‐Amyl Methyl Ether (TAME) ‐‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
Tert‐Butyl Alcohol (tert‐Butanol) ‐‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ Tert‐Butyl Ethyl Ether (ETBE) ‐‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐tert‐Butylbenzene ‐‐‐ < 0.005 < 0.005 < 0.005 < 0.00015 < 0.00015 < 0.00015 < 0.00016 ‐‐‐ Tetrachloroethene 2.1 2.7 ‐ < 0.005 < 0.005 < 0.005 < 0.00021 < 0.00021 < 0.00021 < 0.00022 ‐‐‐Toluene 0.44 5,300 ‐ < 0.005 < 0.005 < 0.005 < 0.00053 < 0.00052 < 0.00051 < 0.00054 ‐‐‐trans‐1,2‐Dichloroethene 0.17 600 ‐ < 0.005 < 0.005 < 0.005 < 0.00052 < 0.00051 < 0.0005 < 0.00053 ‐‐‐ trans‐1,3‐Dichloropropene ‐‐‐ < 0.005 < 0.005 < 0.005 < 0.00062 < 0.00061 < 0.0006 < 0.00063 ‐‐‐ Trichloroethene 27 63 2,040 < 0.005 < 0.005 < 0.005 < 0.00031 < 0.0003 < 0.0003 < 0.00031 ‐‐‐ Trichlorofluoromethane (CFC‐11) ‐ 5,400 ‐ < 0.05 < 0.05 < 0.05 < 0.00038 < 0.00038 < 0.00037 < 0.00039 ‐‐‐ Trifluorotrichloroethane (Freon 113) 6.4 ‐‐ < 0.05 < 0.05 < 0.05 < 0.00036 < 0.00035 < 0.00035 < 0.00037 ‐‐‐ Vinyl acetate ‐‐‐ < 0.05 < 0.05 < 0.05 < 0.0049 < 0.0048 < 0.0047 < 0.005 ‐‐‐ Vinyl chloride 13 0.15 ‐ < 0.005 < 0.005 < 0.005 < 0.00051 < 0.00051 < 0.0005 < 0.00053 ‐‐‐ Xylene (total) 6 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
Notes and Abbreviations:

BOLD = concentration detected at or above
reported detection limit.

No COPC in soil exceeded its Total Threshold Limit Concentration (TTLC). < = analyte not detected above the indicated
reporting limit.B = compound detected in the associated blank J = estimated concentration.‐ = not analyzed or not applicable. mg/kg = milligrams per kilogram.
bgs = below ground surface.

GPL: Groundwater Protection Level (Haley & Aldrich 2014a, 2014b) TTLC: Total Threshold Limit Concentration, CCR Title 22 Section 66261.24 1 Cancer Endpoint. If there is no Cancer Endpoint, the Noncancer Endpoint is noted.2 Site background3 U.S. EPA Region 9 Remediation Screening Level DTSC‐SL: Commercial/Industrial Department of Toxic Substances Control‐Screening Level, HHRA Note 3, June 2020.

HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 7 of 102 ends

LocationSample Name
Sample Date
Sample Depth
Metals (mg/kg) GPL DTSC TTLC
Antimony 7.84 ‐ 500
Arsenic 24.3 0.36/82 500
Barium 43000 ‐ 10,000
Beryllium ‐ 6,900 75
Cadmium 970 4,000 100Chromium 660 ‐ 2,500
Chromium VI (Hexavalent) 30 6.2 500
Cobalt ‐‐ 8,000
Copper 5600 ‐ 2,500
Lead 232 320 1,000Mercury 2.1 4.4 20Molybdenum ‐‐ 3,500 Nickel 3400 64,000 2,000Selenium ‐‐ 100Silver ‐‐ 500Thallium ‐‐ 700Vanadium ‐‐ 2,400 Zinc ‐‐ 5,000
‐
PCBs (mg/kg)
Aroclor‐1016 (PCB‐1016) ‐ 17 ‐
Aroclor‐1221 (PCB‐1221) ‐ 0.53 ‐
Aroclor‐1232 (PCB‐1232) ‐ 0.49 ‐
Aroclor‐1242 (PCB‐1242) ‐ 0.58 ‐
Aroclor‐1248 (PCB‐1248) ‐ 0.58 ‐
Aroclor‐1254 (PCB‐1254) ‐ 0.59 ‐
Aroclor‐1260 (PCB‐1260) ‐ 0.6 ‐
Aroclor‐1262 (PCB‐1262) ‐‐‐
Aroclor‐1268 (PCB‐1268) ‐‐‐
Total PCBs 130 0.58 50
‐
PEST (mg/kg)
4,4'‐DDD ‐ 6.2 1.0
4,4'‐DDE ‐ 9.3 1.04,4'‐DDT ‐ 7.1 1.0
Aldrin ‐ 0.18 1.4
alpha‐BHC ‐ 0.24 ‐
beta‐BHC ‐ 0.82 ‐
Chlordane ‐ 6.1 2.5
delta‐BHC ‐‐‐
Dieldrin ‐ 0.093 8.0
Endosulfan I ‐ 6,000 ‐
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
B29‐02B B29‐02C B29‐02C B29‐03 B29‐03 B29‐03A B29‐03A B29‐03B B29‐03B B29‐04 B29‐02B‐030 B29‐02C‐010 B29‐02C‐030 B29‐03‐01 B29‐03‐03 B29‐03A‐010 B29‐03A‐030 B29‐03B‐010 B29‐03B‐030 B29‐04‐1 1/9/2020 1/9/2020 1/9/2020 6/28/2016 6/28/2016 1/10/2020 1/10/2020 1/10/2020 1/10/2020 6/27/2016

2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) ‐‐‐ < 0.147 < 0.154 ‐‐‐‐ < 0.145
< 0.46 < 0.46 < 0.46 19.6 2.64 20.4 1.44 J 21.9 1.1 J 2.7 ‐‐‐ 182 371 ‐‐‐‐ 71.6
‐‐‐ 0.434 0.546 ‐‐‐‐ 0.269
‐‐‐ 0.235 J 0.33 J ‐‐‐‐ 0.37 J
‐‐‐ 5.09 14.9 ‐‐‐‐ 13.7‐‐‐ 2.94 9.37 ‐‐‐‐ 8.77‐‐‐ 6.58 6.51 ‐‐‐‐ 17.1‐‐‐ 7.69 5.03 ‐‐‐‐ 7.6‐‐‐ < 0.00618 < 0.00578 ‐‐‐‐ 0.0133 J ‐‐‐ 0.324 < 0.136 ‐‐‐‐ < 0.128
‐‐‐ 5.19 7.79 ‐‐‐‐ 6.27‐‐‐ 0.364 J < 0.309 ‐‐‐‐ 0.387 J ‐‐‐ < 0.0844 < 0.0884 ‐‐‐‐ < 0.0832
‐‐‐ 0.328 J < 0.156 ‐‐‐‐ < 0.147
‐‐‐ 17.2 43.2 ‐‐‐‐ 40.5‐‐‐ 33.2 28.3 ‐‐‐‐ 25.6‐‐‐ < 0.021 < 0.021 ‐‐‐‐ < 0.021 ‐‐‐ < 0.043 < 0.042 ‐‐‐‐ < 0.042
‐‐‐ < 0.025 < 0.025 ‐‐‐‐ < 0.025
‐‐‐ < 0.037 < 0.037 ‐‐‐‐ < 0.037
‐‐‐ < 0.032 < 0.032 ‐‐‐‐ < 0.032
‐‐‐ < 0.032 < 0.032 ‐‐‐‐ < 0.032
‐‐‐ < 0.031 < 0.03 ‐‐‐‐ < 0.03
‐‐‐ < 0.035 < 0.035 ‐‐‐‐ < 0.035
‐‐‐ < 0.034 < 0.033 ‐‐‐‐ < 0.033
‐‐‐ < 0.043 < 0.042 ‐‐‐‐ < 0.042
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 8 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
PEST (mg/kg) ‐
Endosulfan II ‐ 6,000 ‐
Endosulfan sulfate ‐ 11,000 ‐
Endrin ‐ 160 0.2
Endrin aldehyde ‐‐‐
Endrin ketone ‐‐‐
gamma‐BHC (Lindane) ‐ 2 4.0
Heptachlor ‐ 0.63 4.7
Heptachlor epoxide ‐ 0.33 ‐
Methoxychlor ‐ 2600 100
Toxaphene ‐ 1.2 5
‐
SVOCs (mg/kg)
1,2,4‐Trichlorobenzene 0.818 35 ‐
1,2‐Dichlorobenzene 28 ‐‐
1,3‐Dichlorobenzene ‐‐‐
1,4‐Dichlorobenzene 0.23 ‐‐
1‐Methylnaphthalene ‐ 30 ‐
2,2'‐oxybis(2‐Chloropropane) ‐‐‐
2,4,5‐Trichlorophenol ‐ 53,000 ‐
2,4,6‐Trichlorophenol ‐ 21 ‐
2,4‐Dichlorophenol ‐ 1,600 ‐
2,4‐Dimethylphenol ‐ 11,000 ‐
2,4‐Dinitrophenol ‐ 1,100 ‐
2,4‐Dinitrotoluene ‐‐‐
2,6‐Dichlorophenol ‐ 4.7 ‐
2,6‐Dinitrotoluene ‐ 0.99 ‐
2‐Chloronaphthalene ‐ 27,000 ‐
2‐Chlorophenol ‐ 3,900 ‐
2‐Methylnaphthalene ‐ 1,300 ‐
2‐Methylphenol (o‐Cresol) ‐ 26,000 ‐
2‐Nitroaniline ‐ 5,200 ‐
2‐Nitrophenol ‐‐‐3,3'‐Dichlorobenzidine ‐ 0.93 ‐
3‐Nitroaniline ‐‐‐
4,6‐Dinitro‐2‐methylphenol ‐ 42 ‐
4‐Bromophenyl phenyl ether ‐‐‐
4‐Chloro‐3‐methylphenol ‐ 53,000 ‐
4‐Chloroaniline ‐ 7.4 ‐
4‐Chlorophenyl phenyl ether ‐‐‐
4‐Nitroaniline ‐ 74 ‐
4‐Nitrophenol ‐‐‐
B29‐02B B29‐02C B29‐02C B29‐03 B29‐03 B29‐03A B29‐03A B29‐03B B29‐03B B29‐04 B29‐02B‐030 B29‐02C‐010 B29‐02C‐030 B29‐03‐01 B29‐03‐03 B29‐03A‐010 B29‐03A‐030 B29‐03B‐010 B29‐03B‐030 B29‐04‐1 1/9/2020 1/9/2020 1/9/2020 6/28/2016 6/28/2016 1/10/2020 1/10/2020 1/10/2020 1/10/2020 6/27/2016

2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ < 0.3 ‐‐‐‐‐‐ ‐‐‐ < 0.32 ‐‐‐‐‐‐
‐‐‐ < 0.37 ‐‐‐‐‐‐
‐‐‐ < 0.38 ‐‐‐‐‐‐
‐‐‐ < 0.28 ‐‐‐‐‐‐
‐‐‐ < 0.29 ‐‐‐‐‐‐
‐‐‐ < 0.32 ‐‐‐‐‐‐
‐‐‐ < 0.38 ‐‐‐‐‐‐
‐‐‐ < 0.29 ‐‐‐‐‐‐
‐‐‐ < 1.3 ‐‐‐‐‐‐
‐‐‐ < 1.7 ‐‐‐‐‐‐
‐‐‐ < 0.33 ‐‐‐‐‐‐
‐‐‐ < 0.47 ‐‐‐‐‐‐
‐‐‐ < 0.36 ‐‐‐‐‐‐
‐‐‐ < 0.3 ‐‐‐‐‐‐
‐‐‐ < 0.33 ‐‐‐‐‐‐
‐‐‐ < 0.3 ‐‐‐‐‐‐
‐‐‐ < 0.43 ‐‐‐‐‐‐
‐‐‐ < 0.26 ‐‐‐‐‐‐
‐‐‐ < 0.34 ‐‐‐‐‐‐
‐‐‐ < 1.8 ‐‐‐‐‐‐
‐‐‐ < 0.35 ‐‐‐‐‐‐
‐‐‐ < 3.2 ‐‐‐‐‐‐
‐‐‐ < 0.31 ‐‐‐‐‐‐
‐‐‐ < 0.33 ‐‐‐‐‐‐
‐‐‐ < 0.33 ‐‐‐‐‐‐
‐‐‐ < 0.32 ‐‐‐‐‐‐
‐‐‐ < 0.33 ‐‐‐‐‐‐
‐‐‐ < 0.27 ‐‐‐‐‐‐
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 9 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
SVOCs (mg/kg) ‐
Acenaphthene ‐ 23,000 ‐
Acenaphthylene ‐‐‐Aniline ‐ 260 ‐
Anthracene ‐ 130,000 ‐
Azobenzene ‐‐‐Benzidine ‐ 0.003 ‐
Benzo(a)anthracene ‐ 12 ‐
Benzo(a)pyrene 14 1.3 ‐Benzo(b)fluoranthene ‐ 13 ‐
Benzo(g,h,i)perylene ‐‐‐Benzo(k)fluoranthene ‐ 210,000 ‐ Benzoic acid ‐ 2,100,000 ‐
Benzyl Alcohol ‐ 53,000 ‐
bis(2‐Chloroethoxy)methane ‐ 1,600 ‐
bis(2‐Chloroethyl)ether ‐ 0.47 ‐
bis(2‐Ethylhexyl)phthalate 57 110 ‐
Butyl benzylphthalate ‐ 780 ‐
Chrysene ‐ 1,300 ‐
Dibenz(a,h)anthracene ‐ 0.31 ‐
Dibenzofuran ‐ 650 ‐
Diethyl phthalate ‐ 420,000 ‐Dimethyl phthalate ‐‐‐
Di‐n‐butylphthalate ‐ 53,000 ‐
Di‐n‐octyl phthalate ‐ 5,300 ‐Fluoranthene ‐ 18,000 ‐
Fluorene ‐ 17,000 ‐
Hexachlorobenzene ‐ 0.86 ‐
Hexachlorobutadiene ‐ 5.3 ‐
Hexachlorocyclopentadiene ‐‐‐Hexachloroethane ‐‐‐Indeno(1,2,3‐cd)pyrene ‐ 13 ‐ Isophorone ‐ 1,600 ‐
m,p‐Cresols ‐‐‐
Naphthalene ‐ 6.5 ‐
Nitrobenzene ‐‐‐N‐Nitrosodimethylamine ‐ 0.53 ‐
N‐Nitrosodi‐n‐propylamine ‐ 0.21 ‐
N‐Nitrosodiphenylamine ‐ 300 ‐
Pentachlorophenol 0.0717 2 ‐Phenanthrene ‐‐‐Phenol ‐ 160,000 ‐ Pyrene ‐ 13,000 ‐
Pyridine ‐ 530 ‐
B29‐02B B29‐02C B29‐02C B29‐03 B29‐03 B29‐03A B29‐03A B29‐03B B29‐03B B29‐04 B29‐02B‐030 B29‐02C‐010 B29‐02C‐030 B29‐03‐01 B29‐03‐03 B29‐03A‐010 B29‐03A‐030 B29‐03B‐010 B29‐03B‐030 B29‐04‐1 1/9/2020 1/9/2020 1/9/2020 6/28/2016 6/28/2016 1/10/2020 1/10/2020 1/10/2020 1/10/2020 6/27/2016

2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) ‐‐‐ < 0.004 ‐‐‐‐‐‐
‐‐‐ < 0.0042 ‐‐‐‐‐‐
‐‐‐ < 0.3 ‐‐‐‐‐‐
‐‐‐ < 0.002 ‐‐‐‐‐‐
‐‐‐ < 0.27 ‐‐‐‐‐‐
‐‐‐ < 4.1 ‐‐‐‐‐‐
‐‐‐ < 0.0025 ‐‐‐‐‐‐
‐‐‐ 0.01 ‐‐‐‐‐‐
‐‐‐ 0.024 ‐‐‐‐‐‐
‐‐‐ < 0.0018 ‐‐‐‐‐‐
‐‐‐ 0.032 ‐‐‐‐‐‐
‐‐‐ < 2.5 ‐‐‐‐‐‐
‐‐‐ < 0.33 ‐‐‐‐‐‐
‐‐‐ < 0.28 ‐‐‐‐‐‐
‐‐‐ < 2 ‐‐‐‐‐‐
‐‐‐ < 0.27 ‐‐‐‐‐‐
‐‐‐ < 0.27 ‐‐‐‐‐‐
‐‐‐ 0.0045 J ‐‐‐‐‐‐
‐‐‐ < 0.0029 ‐‐‐‐‐‐
‐‐‐ < 0.3 ‐‐‐‐‐‐
‐‐‐ < 0.29 ‐‐‐‐‐‐
‐‐‐ < 0.57 ‐‐‐‐‐‐
‐‐‐ < 0.3 ‐‐‐‐‐‐
‐‐‐ < 0.5 ‐‐‐‐‐‐
‐‐‐ < 0.0021 ‐‐‐‐‐‐
‐‐‐ < 0.0017 ‐‐‐‐‐‐
‐‐‐ < 0.33 ‐‐‐‐‐‐
‐‐‐ < 0.32 ‐‐‐‐‐‐
‐‐‐ < 2.5 ‐‐‐‐‐‐
‐‐‐ < 0.39 ‐‐‐‐‐‐
‐‐‐ < 0.0022 ‐‐‐‐‐‐
‐‐‐ < 0.28 ‐‐‐‐‐‐
‐‐‐ < 0.81 ‐‐‐‐‐‐
‐‐‐ < 0.004 ‐‐‐‐‐‐
‐‐‐ < 1.6 ‐‐‐‐‐‐
‐‐‐ < 0.24 ‐‐‐‐‐‐
‐‐‐ < 0.42 ‐‐‐‐‐‐
‐‐‐ < 0.68 ‐‐‐‐‐‐
‐‐‐ < 1.9 ‐‐‐‐‐‐
‐‐‐ < 0.0021 ‐‐‐‐‐‐
‐‐‐ < 0.24 ‐‐‐‐‐‐
‐‐‐ < 0.0029 ‐‐‐‐‐‐
‐‐‐ < 0.27 ‐‐‐‐‐‐
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 10 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
TPH (mg/kg)
PHC as Gasoline 5,400 97 ‐
Total Petroleum Hydrocarbons (C6) ‐‐‐
Total Petroleum Hydrocarbons (C7) ‐‐‐
Total Petroleum Hydrocarbons (C8) ‐‐‐
Total Petroleum Hydrocarbons (C9‐C10) ‐‐‐
Total Petroleum Hydrocarbons (C11‐C12) ‐‐‐
Total Petroleum Hydrocarbons (C13‐C14) ‐‐‐
Total Petroleum Hydrocarbons (C15‐C16) ‐‐‐
Total Petroleum Hydrocarbons (C17‐C18) ‐‐‐
Total Petroleum Hydrocarbons (C19‐C20) ‐‐‐
Total Petroleum Hydrocarbons (C21‐C22) ‐‐‐
Total Petroleum Hydrocarbons (C23‐C24) ‐‐‐
Total Petroleum Hydrocarbons (C25‐C28) ‐‐‐
Total Petroleum Hydrocarbons (C29‐C32) ‐‐‐
Total Petroleum Hydrocarbons (C33‐C36) ‐‐‐
Total Petroleum Hydrocarbons (C37‐C40) ‐‐‐
Total Petroleum Hydrocarbons (C41‐C44) ‐‐‐
Total Petroleum Hydrocarbons (C6‐C44) ‐‐‐
Total Petroleum Hydrocarbons (C10‐C28) Diesel ‐‐‐
Total Petroleum Hydrocarbons (C10‐C28) DRO ‐‐‐
Total Petroleum Hydrocarbons (>C28‐C44) ‐‐‐
Gasoline C6‐C8 (calculated) 2,900 ‐‐
Diesel C9‐C16 (calculated) 5,400 97 ‐
Oil C17‐C32 (calculated) 7,300 2,400 ‐
‐
VOCs (mg/kg)
1,1,1,2‐Tetrachloroethane ‐ 8.8 ‐
1,1,1‐Trichloroethane 1.7 7,200 ‐
1,1,2,2‐Tetrachloroethane ‐ 2.7 ‐
1,1,2‐Trichloroethane 0.04 ‐‐
1,1‐Dichloroethane 0.56 16 ‐
1,1‐Dichloroethene 0.071 350 ‐
1,1‐Dichloropropene ‐‐‐
1,2,3‐Trichlorobenzene ‐ 300 ‐
1,2,3‐Trichloropropane ‐ 0.021 ‐
1,2,3‐Trimethylbenzene ‐‐‐
1,2,4‐Trichlorobenzene 0.818 35 ‐
1,2,4‐Trimethylbenzene ‐‐‐
1,2‐Dibromo‐3‐chloropropane (DBCP) ‐ 0.057 ‐
1,2‐Dibromoethane (Ethylene Dibromide) ‐ 0.16 ‐
1,2‐Dichlorobenzene 28 ‐‐
1,2‐Dichloroethane 0.0028 ‐‐
1,2‐Dichloropropane ‐‐‐
B29‐02B B29‐02C B29‐02C B29‐03 B29‐03 B29‐03A B29‐03A B29‐03B B29‐03B B29‐04 B29‐02B‐030 B29‐02C‐010 B29‐02C‐030 B29‐03‐01 B29‐03‐03 B29‐03A‐010 B29‐03A‐030 B29‐03B‐010 B29‐03B‐030 B29‐04‐1 1/9/2020 1/9/2020 1/9/2020 6/28/2016 6/28/2016 1/10/2020 1/10/2020 1/10/2020 1/10/2020 6/27/2016

2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) ‐‐‐‐‐‐‐‐‐‐‐‐‐ < 6.4 < 1.3 ‐‐‐‐ < 1.3
‐‐‐ < 6.4 < 1.3 ‐‐‐‐ < 1.3
‐‐‐ < 6.4 < 1.3 ‐‐‐‐ < 1.3
‐‐‐ < 6.4 < 1.3 ‐‐‐‐ < 1.3
‐‐‐ < 6.4 < 1.3 ‐‐‐‐ < 1.3
‐‐‐ < 6.4 < 1.3 ‐‐‐‐ < 1.3‐‐‐ < 6.4 < 1.3 ‐‐‐‐ < 1.3
‐‐‐ < 6.4 < 1.3 ‐‐‐‐ < 1.3
‐‐‐ < 6.4 < 1.3 ‐‐‐‐ < 1.3
‐‐‐ < 6.4 1.6 J ‐‐‐‐ < 1.3
‐‐‐ 14 J 2.2 J ‐‐‐‐ < 1.3
‐‐‐ 33 2.7 J ‐‐‐‐ < 1.3
‐‐‐ 110 4 J ‐‐‐‐ 4.5 J
‐‐‐ 120 5.8 ‐‐‐‐ 7.5
‐‐‐ 120 3.6 J ‐‐‐‐ < 1.3
‐‐‐ 76 < 1.3 ‐‐‐‐ < 1.3
‐‐‐ 470 20 ‐‐‐‐ 12‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ < 6.4 < 1.3 ‐‐‐‐ < 1.3 ‐‐‐ < 6.4 < 1.3 ‐‐‐‐ < 1.3‐‐‐ 157 10.5 ‐‐‐‐ 4.5
‐‐‐ < 0.00025 < 0.00024 ‐‐‐‐ < 0.00024
‐‐‐ < 0.00023 < 0.00023 ‐‐‐‐ < 0.00022
‐‐‐ < 0.00036 < 0.00035 ‐‐‐‐ < 0.00034
‐‐‐ < 0.00037 < 0.00036 ‐‐‐‐ < 0.00035
‐‐‐ < 0.00022 < 0.00022 ‐‐‐‐ < 0.00021
‐‐‐ < 0.00036 < 0.00035 ‐‐‐‐ < 0.00034
‐‐‐ < 0.00034 < 0.00033 ‐‐‐‐ < 0.00033
‐‐‐ < 0.00095 < 0.00093 ‐‐‐‐ < 0.0009
‐‐‐ < 0.00086 < 0.00085 ‐‐‐‐ < 0.00082
‐‐‐‐‐‐‐‐‐‐‐‐‐ < 0.00032 < 0.00032 ‐‐‐‐ < 0.00031
‐‐‐ < 0.00061 < 0.0006 ‐‐‐‐ < 0.00058
‐‐‐ < 0.0018 < 0.0018 ‐‐‐‐ < 0.0017
‐‐‐ < 0.00026 < 0.00026 ‐‐‐‐ < 0.00025
‐‐‐ < 0.00024 < 0.00023 ‐‐‐‐ < 0.00023
‐‐‐ < 0.00033 < 0.00032 ‐‐‐‐ < 0.00031
‐‐‐ < 0.00045 < 0.00045 ‐‐‐‐ < 0.00043
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 11 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
VOCs (mg/kg) ‐
1,3,5‐Trimethylbenzene ‐‐‐
1,3‐Dichlorobenzene ‐‐‐
1,3‐Dichloropropane ‐ 2,200 ‐
1,4‐Dichloro‐2‐butene ‐‐‐
1,4‐Dichlorobenzene 0.23 ‐‐
2,2‐Dichloropropane ‐‐‐
2‐Butanone (Methyl Ethyl Ketone) ‐‐‐
2‐Chlorotoluene ‐ 2,500 ‐
2‐Hexanone ‐‐‐2‐Phenylbutane (sec‐Butylbenzene) ‐ 12,000 ‐ 4‐Chlorotoluene ‐ 2,300 ‐
4‐Methyl‐2‐Pentanone (Methyl Isobutyl Ketone) ‐‐‐
Acetone ‐‐‐Acrylonitrile ‐‐‐Allyl chloride ‐‐‐
Benzene 0.019 1.4 ‐Bromobenzene ‐‐‐Bromodichloromethane ‐ 1.3 ‐ Bromoform ‐ 86 ‐
Bromomethane (Methyl Bromide) ‐‐‐
Carbon disulfide ‐‐‐
Carbon tetrachloride ‐ 2.9 ‐
Chlorobenzene 2 ‐‐Chlorobromomethane ‐ 4.1 ‐
Chloroethane ‐‐‐Chloroform (Trichloromethane) ‐‐‐
Chloromethane (Methyl Chloride) ‐‐‐
cis‐1,2‐Dichloroethene 4.9 84 ‐
cis‐1,3‐Dichloropropene ‐‐‐
cis‐1,4‐Dichloro‐2‐butene ‐‐‐Cymene (p‐Isopropyltoluene) ‐ 1,600 ‐ Dibromochloromethane ‐‐‐Dibromomethane ‐‐‐Dichlorodifluoromethane (CFC‐12) ‐‐‐ Diisopropyl ether (DIPE) ‐‐‐
Ethylbenzene 7.7 ‐‐Hexachlorobutadiene ‐ 5.3 ‐
Isopropylbenzene (Cumene) ‐‐‐
m,p‐Xylenes 6 ‐‐
Methyl Tert Butyl Ether ‐‐‐
Methylene chloride 0.019 26 ‐
Naphthalene ‐ 6.5 ‐
n‐Butylbenzene ‐‐‐
B29‐02B B29‐02C B29‐02C B29‐03 B29‐03 B29‐03A B29‐03A B29‐03B B29‐03B B29‐04 B29‐02B‐030 B29‐02C‐010 B29‐02C‐030 B29‐03‐01 B29‐03‐03 B29‐03A‐010 B29‐03A‐030 B29‐03B‐010 B29‐03B‐030 B29‐04‐1 1/9/2020 1/9/2020 1/9/2020 6/28/2016 6/28/2016 1/10/2020 1/10/2020 1/10/2020 1/10/2020 6/27/2016

2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) ‐‐‐ < 0.00057 < 0.00056 ‐‐‐‐ < 0.00054
‐‐‐ < 0.00018 < 0.00018 ‐‐‐‐ < 0.00017
‐‐‐ < 0.00026 < 0.00026 ‐‐‐‐ < 0.00025
‐‐‐‐‐‐‐‐‐‐‐‐‐ < 0.00023 < 0.00023 ‐‐‐‐ < 0.00022
‐‐‐ < 0.00034 < 0.00034 ‐‐‐‐ < 0.00033
‐‐‐ < 0.0039 < 0.0038 ‐‐‐‐ < 0.0037
‐‐‐ < 0.00024 < 0.00024 ‐‐‐‐ < 0.00023
‐‐‐ < 0.0018 < 0.0018 ‐‐‐‐ < 0.0017
‐‐‐ < 0.0006 < 0.00059 ‐‐‐‐ < 0.00057
‐‐‐ < 0.00022 < 0.00022 ‐‐‐‐ < 0.00021
‐‐‐ < 0.0045 < 0.0044 ‐‐‐‐ < 0.0043
‐‐‐ < 0.0065 < 0.0064 ‐‐‐‐ < 0.0062
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ < 0.00013 < 0.00013 ‐‐‐‐ < 0.00013 ‐‐‐ < 0.00022 < 0.00021 ‐‐‐‐ < 0.00021
‐‐‐ < 0.00024 < 0.00024 ‐‐‐‐ < 0.00023
‐‐‐ < 0.00082 < 0.00081 ‐‐‐‐ < 0.00079
‐‐‐ < 0.0098 < 0.0096 ‐‐‐‐ < 0.0093
‐‐‐ < 0.00032 < 0.00031 ‐‐‐‐ < 0.0003
‐‐‐ < 0.00029 < 0.00029 ‐‐‐‐ < 0.00028
‐‐‐ < 0.00023 < 0.00023 ‐‐‐‐ < 0.00022
‐‐‐ < 0.00071 < 0.0007 ‐‐‐‐ < 0.00068
‐‐‐ < 0.0015 < 0.0015 ‐‐‐‐ < 0.0015
‐‐‐ < 0.00025 < 0.00024 ‐‐‐‐ < 0.00024
‐‐‐ < 0.00031 < 0.00031 ‐‐‐‐ < 0.0003
‐‐‐ < 0.00029 < 0.00028 ‐‐‐‐ < 0.00028
‐‐‐ < 0.00026 < 0.00026 ‐‐‐‐ < 0.00025
‐‐‐‐‐‐‐‐‐‐‐‐‐ < 0.00065 < 0.00064 ‐‐‐‐ < 0.00062
‐‐‐ < 0.00059 < 0.00058 ‐‐‐‐ < 0.00056
‐‐‐ < 0.0008 < 0.00079 ‐‐‐‐ < 0.00077
‐‐‐ < 0.00046 < 0.00045 ‐‐‐‐ < 0.00044
‐‐‐‐‐‐‐‐‐‐‐‐‐ < 0.00016 < 0.00015 ‐‐‐‐ < 0.00015
‐‐‐‐‐‐‐‐‐‐‐‐‐ < 0.00057 < 0.00056 ‐‐‐‐ < 0.00054
‐‐‐ < 0.00028 < 0.00027 ‐‐‐‐ < 0.00027
‐‐‐ < 0.00031 < 0.0003 ‐‐‐‐ < 0.00029
‐‐‐ < 0.0014 < 0.0014 ‐‐‐‐ < 0.0013
‐‐‐ < 0.00084 < 0.00083 ‐‐‐‐ < 0.00081
‐‐‐ < 0.00016 < 0.00016 ‐‐‐‐ < 0.00015
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 12 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
VOCs (mg/kg) ‐
n‐Propylbenzene ‐‐‐
o‐Xylene 6 ‐‐
PHC as Gasoline 5,400 97 ‐
Styrene ‐ 32,000 ‐
Tert‐Amyl Methyl Ether (TAME) ‐‐‐
Tert‐Butyl Alcohol (tert‐Butanol) ‐‐‐
Tert‐Butyl Ethyl Ether (ETBE) ‐‐‐tert‐Butylbenzene ‐‐‐
Tetrachloroethene 2.1 2.7 ‐
Toluene 0.44 5,300 ‐trans‐1,2‐Dichloroethene 0.17 600 ‐ trans‐1,3‐Dichloropropene ‐‐‐
Trichloroethene 27 63 2,040
Trichlorofluoromethane (CFC‐11) ‐ 5,400 ‐
Trifluorotrichloroethane (Freon 113) 6.4 ‐‐
Vinyl acetate ‐‐‐
Vinyl chloride 13 0.15 ‐
Xylene (total) 6 ‐‐
Notes and Abbreviations:

BOLD = concentration detected at or above
reported detection limit.

No COPC in soil exceeded its Total Threshold Limit Concentration (TTLC). < = analyte not detected above the indicated
reporting limit.B = compound detected in the associated blank J = estimated concentration.‐ = not analyzed or not applicable. mg/kg = milligrams per kilogram.
bgs = below ground surface.

GPL: Groundwater Protection Level (Haley & Aldrich 2014a, 2014b) TTLC: Total Threshold Limit Concentration, CCR Title 22 Section 66261.24 1 Cancer Endpoint. If there is no Cancer Endpoint, the Noncancer Endpoint is noted.2 Site background3 U.S. EPA Region 9 Remediation Screening Level DTSC‐SL: Commercial/Industrial Department of Toxic Substances Control‐Screening Level, HHRA Note 3, June 2020.

B29‐02B B29‐02C B29‐02C B29‐03 B29‐03 B29‐03A B29‐03A B29‐03B B29‐03B B29‐04 B29‐02B‐030 B29‐02C‐010 B29‐02C‐030 B29‐03‐01 B29‐03‐03 B29‐03A‐010 B29‐03A‐030 B29‐03B‐010 B29‐03B‐030 B29‐04‐1 1/9/2020 1/9/2020 1/9/2020 6/28/2016 6/28/2016 1/10/2020 1/10/2020 1/10/2020 1/10/2020 6/27/2016

2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) ‐‐‐ < 0.00052 < 0.00051 ‐‐‐‐ < 0.0005
‐‐‐ < 0.00058 < 0.00057 ‐‐‐‐ < 0.00055
‐‐‐‐‐‐‐‐‐‐‐‐‐ < 0.00063 < 0.00062 ‐‐‐‐ < 0.0006
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ < 0.00016 < 0.00015 ‐‐‐‐ < 0.00015 ‐‐‐ < 0.00022 < 0.00021 ‐‐‐‐ < 0.00021
‐‐‐ < 0.00053 < 0.00052 ‐‐‐‐ < 0.00051
‐‐‐ < 0.00052 < 0.00052 ‐‐‐‐ < 0.0005
‐‐‐ < 0.00063 < 0.00062 ‐‐‐‐ < 0.0006
‐‐‐ < 0.00031 0.00064 J ‐‐‐‐ < 0.0003
‐‐‐ < 0.00039 < 0.00038 ‐‐‐‐ < 0.00037
‐‐‐ < 0.00036 < 0.00036 ‐‐‐‐ < 0.00035
‐‐‐ < 0.0049 < 0.0048 ‐‐‐‐ < 0.0047
‐‐‐ < 0.00052 < 0.00051 ‐‐‐‐ < 0.0005
‐‐‐‐‐‐‐‐‐‐
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 13 of 102 ends

LocationSample Name
Sample Date
Sample Depth
Metals (mg/kg) GPL DTSC TTLC
Antimony 7.84 ‐ 500
Arsenic 24.3 0.36/82 500
Barium 43000 ‐ 10,000
Beryllium ‐ 6,900 75
Cadmium 970 4,000 100Chromium 660 ‐ 2,500
Chromium VI (Hexavalent) 30 6.2 500
Cobalt ‐‐ 8,000
Copper 5600 ‐ 2,500
Lead 232 320 1,000Mercury 2.1 4.4 20Molybdenum ‐‐ 3,500 Nickel 3400 64,000 2,000Selenium ‐‐ 100Silver ‐‐ 500Thallium ‐‐ 700Vanadium ‐‐ 2,400 Zinc ‐‐ 5,000
‐
PCBs (mg/kg)
Aroclor‐1016 (PCB‐1016) ‐ 17 ‐
Aroclor‐1221 (PCB‐1221) ‐ 0.53 ‐
Aroclor‐1232 (PCB‐1232) ‐ 0.49 ‐
Aroclor‐1242 (PCB‐1242) ‐ 0.58 ‐
Aroclor‐1248 (PCB‐1248) ‐ 0.58 ‐
Aroclor‐1254 (PCB‐1254) ‐ 0.59 ‐
Aroclor‐1260 (PCB‐1260) ‐ 0.6 ‐
Aroclor‐1262 (PCB‐1262) ‐‐‐
Aroclor‐1268 (PCB‐1268) ‐‐‐
Total PCBs 130 0.58 50
‐
PEST (mg/kg)
4,4'‐DDD ‐ 6.2 1.0
4,4'‐DDE ‐ 9.3 1.04,4'‐DDT ‐ 7.1 1.0
Aldrin ‐ 0.18 1.4
alpha‐BHC ‐ 0.24 ‐
beta‐BHC ‐ 0.82 ‐
Chlordane ‐ 6.1 2.5
delta‐BHC ‐‐‐
Dieldrin ‐ 0.093 8.0
Endosulfan I ‐ 6,000 ‐
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
B29‐04 B29‐05 B29‐05 B29‐05A B29‐05A B29‐05B B29‐05B B29‐05C B29‐05C B29‐06 B29‐04‐5 B29‐05‐2 B29‐05‐5 B29‐05A‐020 B29‐05A‐030 B29‐05B‐020 B29‐05B‐030 B29‐05C‐020 B29‐05C‐030 B29‐06‐1 6/27/2016 6/28/2016 6/28/2016 1/10/2020 1/10/2020 1/10/2020 1/10/2020 1/10/2020 1/10/2020 6/29/2016

4.5 ‐ 5 (ft) 1.5 ‐ 2 (ft) 4.5 ‐ 5 (ft) 1.5 ‐ 2 (ft) 2.5 ‐ 3 (ft) 1.5 ‐ 2 (ft) 2.5 ‐ 3 (ft) 1.5 ‐ 2 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) < 0.154 1.18 < 0.156 ‐‐‐‐‐‐ < 0.145

5.07 4.59 2.85 ‐‐‐‐‐‐ 2.0266.2 50.4 44.5 ‐‐‐‐‐‐ 71.6

0.295 0.168 J 0.335 ‐‐‐‐‐‐ 0.395

0.333 J 0.401 J 0.287 J ‐‐‐‐‐‐ 0.306 J

9.24 8.14 12.3 ‐‐‐‐‐‐ 165.93 4.55 8.81 ‐‐‐‐‐‐ 9.8710.9 23.8 10.7 ‐‐‐‐‐‐ 8.324.82 17.5 6.34 ‐‐‐‐‐‐ 4.92 < 0.00559 0.0198 J 0.0132 J ‐‐‐‐‐‐ 0.00779 J

0.352 0.851 < 0.138 ‐‐‐‐‐‐ < 0.128

7.78 7.18 6.32 ‐‐‐‐‐‐ 8.88
< 0.31 < 0.3 0.643 J ‐‐‐‐‐‐ < 0.291
< 0.0888 < 0.0857 < 0.0897 ‐‐‐‐‐‐ < 0.0832
< 0.157 < 0.152 < 0.159 ‐‐‐‐‐‐ < 0.147

32.3 19.5 37.9 ‐‐‐‐‐‐ 46.430.5 30.7 23.9 ‐‐‐‐‐‐ 31
< 0.021 < 0.021 < 0.021 < 0.0035 < 0.0035 < 0.0035 < 0.0035 < 0.0035 < 0.0035 < 0.021 < 0.042 < 0.042 < 0.043 < 0.00537 < 0.00537 < 0.00537 < 0.00537 < 0.00537 < 0.00537 < 0.042 < 0.025 < 0.025 < 0.025 < 0.00417 < 0.00417 < 0.00417 < 0.00417 < 0.00417 < 0.00417 < 0.025 < 0.037 < 0.037 < 0.037 < 0.00318 < 0.00318 < 0.00318 < 0.00318 < 0.00318 < 0.00318 < 0.037 < 0.032 < 0.032 < 0.032 < 0.00315 < 0.00315 < 0.00315 < 0.00315 < 0.00315 < 0.00315 < 0.032 < 0.032 < 0.032 < 0.032 < 0.00472 < 0.00472 < 0.00472 < 0.00472 < 0.00472 < 0.00472 < 0.032 < 0.03 1.3 < 0.031 0.0997 0.00566 J 0.127 < 0.00494 0.0132 J 0.0129 J < 0.03 < 0.035 < 0.035 < 0.035 ‐‐‐‐‐‐ < 0.035
< 0.033 < 0.033 < 0.034 ‐‐‐‐‐‐ < 0.033
< 0.042 1.3 < 0.043 0.0997 0.00566 0.127 < 0.00537 0.0132 0.0129 < 0.042 ‐ < 0.0024 ‐‐‐‐‐‐‐‐
‐ < 0.0022 ‐‐‐‐‐‐‐‐
‐ 0.021 ‐‐‐‐‐‐‐‐
‐ < 0.0022 ‐‐‐‐‐‐‐‐
‐ < 0.0037 ‐‐‐‐‐‐‐‐
‐ < 0.0025 ‐‐‐‐‐‐‐‐
‐ < 0.026 ‐‐‐‐‐‐‐‐
‐ < 0.0044 ‐‐‐‐‐‐‐‐
‐ < 0.0022 ‐‐‐‐‐‐‐‐
‐ < 0.002 ‐‐‐‐‐‐‐‐
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 14 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
PEST (mg/kg) ‐
Endosulfan II ‐ 6,000 ‐
Endosulfan sulfate ‐ 11,000 ‐
Endrin ‐ 160 0.2
Endrin aldehyde ‐‐‐
Endrin ketone ‐‐‐
gamma‐BHC (Lindane) ‐ 2 4.0
Heptachlor ‐ 0.63 4.7
Heptachlor epoxide ‐ 0.33 ‐
Methoxychlor ‐ 2600 100
Toxaphene ‐ 1.2 5
‐
SVOCs (mg/kg)
1,2,4‐Trichlorobenzene 0.818 35 ‐
1,2‐Dichlorobenzene 28 ‐‐
1,3‐Dichlorobenzene ‐‐‐
1,4‐Dichlorobenzene 0.23 ‐‐
1‐Methylnaphthalene ‐ 30 ‐
2,2'‐oxybis(2‐Chloropropane) ‐‐‐
2,4,5‐Trichlorophenol ‐ 53,000 ‐
2,4,6‐Trichlorophenol ‐ 21 ‐
2,4‐Dichlorophenol ‐ 1,600 ‐
2,4‐Dimethylphenol ‐ 11,000 ‐
2,4‐Dinitrophenol ‐ 1,100 ‐
2,4‐Dinitrotoluene ‐‐‐
2,6‐Dichlorophenol ‐ 4.7 ‐
2,6‐Dinitrotoluene ‐ 0.99 ‐
2‐Chloronaphthalene ‐ 27,000 ‐
2‐Chlorophenol ‐ 3,900 ‐
2‐Methylnaphthalene ‐ 1,300 ‐
2‐Methylphenol (o‐Cresol) ‐ 26,000 ‐
2‐Nitroaniline ‐ 5,200 ‐
2‐Nitrophenol ‐‐‐3,3'‐Dichlorobenzidine ‐ 0.93 ‐
3‐Nitroaniline ‐‐‐
4,6‐Dinitro‐2‐methylphenol ‐ 42 ‐
4‐Bromophenyl phenyl ether ‐‐‐
4‐Chloro‐3‐methylphenol ‐ 53,000 ‐
4‐Chloroaniline ‐ 7.4 ‐
4‐Chlorophenyl phenyl ether ‐‐‐
4‐Nitroaniline ‐ 74 ‐
4‐Nitrophenol ‐‐‐
B29‐04 B29‐05 B29‐05 B29‐05A B29‐05A B29‐05B B29‐05B B29‐05C B29‐05C B29‐06 B29‐04‐5 B29‐05‐2 B29‐05‐5 B29‐05A‐020 B29‐05A‐030 B29‐05B‐020 B29‐05B‐030 B29‐05C‐020 B29‐05C‐030 B29‐06‐1 6/27/2016 6/28/2016 6/28/2016 1/10/2020 1/10/2020 1/10/2020 1/10/2020 1/10/2020 1/10/2020 6/29/2016

4.5 ‐ 5 (ft) 1.5 ‐ 2 (ft) 4.5 ‐ 5 (ft) 1.5 ‐ 2 (ft) 2.5 ‐ 3 (ft) 1.5 ‐ 2 (ft) 2.5 ‐ 3 (ft) 1.5 ‐ 2 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) ‐ < 0.0024 ‐‐‐‐‐‐‐‐
‐ < 0.0026 ‐‐‐‐‐‐‐‐
‐ < 0.0024 ‐‐‐‐‐‐‐‐
‐ < 0.003 ‐‐‐‐‐‐‐‐
‐ < 0.0025 ‐‐‐‐‐‐‐‐
‐ < 0.0022 ‐‐‐‐‐‐‐‐
‐ < 0.0022 ‐‐‐‐‐‐‐‐
‐ < 0.0037 ‐‐‐‐‐‐‐‐
‐ < 0.0027 ‐‐‐‐‐‐‐‐
‐ < 0.045 ‐‐‐‐‐‐‐‐
‐ < 0.29 ‐‐‐‐‐‐‐‐
‐ < 0.32 ‐‐‐‐‐‐‐‐
‐ < 0.36 ‐‐‐‐‐‐‐‐
‐ < 0.37 ‐‐‐‐‐‐‐‐
‐ < 0.28 ‐‐‐‐‐‐‐‐
‐ < 0.29 ‐‐‐‐‐‐‐‐
‐ < 0.32 ‐‐‐‐‐‐‐‐
‐ < 0.38 ‐‐‐‐‐‐‐‐
‐ < 0.29 ‐‐‐‐‐‐‐‐
‐ < 1.3 ‐‐‐‐‐‐‐‐
‐ < 1.7 ‐‐‐‐‐‐‐‐
‐ < 0.33 ‐‐‐‐‐‐‐‐
‐ < 0.46 ‐‐‐‐‐‐‐‐
‐ < 0.36 ‐‐‐‐‐‐‐‐
‐ < 0.29 ‐‐‐‐‐‐‐‐
‐ < 0.33 ‐‐‐‐‐‐‐‐
‐ < 0.3 ‐‐‐‐‐‐‐‐
‐ < 0.43 ‐‐‐‐‐‐‐‐
‐ < 0.26 ‐‐‐‐‐‐‐‐
‐ < 0.34 ‐‐‐‐‐‐‐‐
‐ < 1.8 ‐‐‐‐‐‐‐‐
‐ < 0.35 ‐‐‐‐‐‐‐‐
‐ < 3.1 ‐‐‐‐‐‐‐‐
‐ < 0.3 ‐‐‐‐‐‐‐‐
‐ < 0.33 ‐‐‐‐‐‐‐‐
‐ < 0.32 ‐‐‐‐‐‐‐‐
‐ < 0.32 ‐‐‐‐‐‐‐‐
‐ < 0.32 ‐‐‐‐‐‐‐‐
‐ < 0.27 ‐‐‐‐‐‐‐‐
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 15 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
SVOCs (mg/kg) ‐
Acenaphthene ‐ 23,000 ‐
Acenaphthylene ‐‐‐Aniline ‐ 260 ‐
Anthracene ‐ 130,000 ‐
Azobenzene ‐‐‐Benzidine ‐ 0.003 ‐
Benzo(a)anthracene ‐ 12 ‐
Benzo(a)pyrene 14 1.3 ‐Benzo(b)fluoranthene ‐ 13 ‐
Benzo(g,h,i)perylene ‐‐‐Benzo(k)fluoranthene ‐ 210,000 ‐ Benzoic acid ‐ 2,100,000 ‐
Benzyl Alcohol ‐ 53,000 ‐
bis(2‐Chloroethoxy)methane ‐ 1,600 ‐
bis(2‐Chloroethyl)ether ‐ 0.47 ‐
bis(2‐Ethylhexyl)phthalate 57 110 ‐
Butyl benzylphthalate ‐ 780 ‐
Chrysene ‐ 1,300 ‐
Dibenz(a,h)anthracene ‐ 0.31 ‐
Dibenzofuran ‐ 650 ‐
Diethyl phthalate ‐ 420,000 ‐Dimethyl phthalate ‐‐‐
Di‐n‐butylphthalate ‐ 53,000 ‐
Di‐n‐octyl phthalate ‐ 5,300 ‐Fluoranthene ‐ 18,000 ‐
Fluorene ‐ 17,000 ‐
Hexachlorobenzene ‐ 0.86 ‐
Hexachlorobutadiene ‐ 5.3 ‐
Hexachlorocyclopentadiene ‐‐‐Hexachloroethane ‐‐‐Indeno(1,2,3‐cd)pyrene ‐ 13 ‐ Isophorone ‐ 1,600 ‐
m,p‐Cresols ‐‐‐
Naphthalene ‐ 6.5 ‐
Nitrobenzene ‐‐‐N‐Nitrosodimethylamine ‐ 0.53 ‐
N‐Nitrosodi‐n‐propylamine ‐ 0.21 ‐
N‐Nitrosodiphenylamine ‐ 300 ‐
Pentachlorophenol 0.0717 2 ‐Phenanthrene ‐‐‐Phenol ‐ 160,000 ‐ Pyrene ‐ 13,000 ‐
Pyridine ‐ 530 ‐
B29‐04 B29‐05 B29‐05 B29‐05A B29‐05A B29‐05B B29‐05B B29‐05C B29‐05C B29‐06 B29‐04‐5 B29‐05‐2 B29‐05‐5 B29‐05A‐020 B29‐05A‐030 B29‐05B‐020 B29‐05B‐030 B29‐05C‐020 B29‐05C‐030 B29‐06‐1 6/27/2016 6/28/2016 6/28/2016 1/10/2020 1/10/2020 1/10/2020 1/10/2020 1/10/2020 1/10/2020 6/29/2016

4.5 ‐ 5 (ft) 1.5 ‐ 2 (ft) 4.5 ‐ 5 (ft) 1.5 ‐ 2 (ft) 2.5 ‐ 3 (ft) 1.5 ‐ 2 (ft) 2.5 ‐ 3 (ft) 1.5 ‐ 2 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) ‐ < 0.0041 ‐‐‐‐‐‐‐ 0.028
‐ < 0.0042 ‐‐‐‐‐‐‐ 0.015 J
‐ < 0.3 ‐‐‐‐‐‐‐‐
‐ 0.0075 J ‐‐‐‐‐‐‐ < 0.002
‐ < 0.27 ‐‐‐‐‐‐‐‐
‐ < 4.1 ‐‐‐‐‐‐‐‐
‐ 0.008 J ‐‐‐‐‐‐‐ < 0.0024
‐ 0.016 ‐‐‐‐‐‐‐ 0.02
‐ 0.018 ‐‐‐‐‐‐‐ 0.017
‐ < 0.0018 ‐‐‐‐‐‐‐ 0.014
‐ 0.025 ‐‐‐‐‐‐‐ 0.11
‐ < 2.5 ‐‐‐‐‐‐‐‐
‐ < 0.33 ‐‐‐‐‐‐‐‐
‐ < 0.28 ‐‐‐‐‐‐‐‐
‐ < 2 ‐‐‐‐‐‐‐‐
‐ < 0.27 ‐‐‐‐‐‐‐‐
‐ < 0.27 ‐‐‐‐‐‐‐‐
‐ 0.016 ‐‐‐‐‐‐‐ 0.0025 J
‐ < 0.003 ‐‐‐‐‐‐‐ < 0.0029
‐ < 0.3 ‐‐‐‐‐‐‐‐
‐ < 0.29 ‐‐‐‐‐‐‐‐
‐ < 0.56 ‐‐‐‐‐‐‐‐
‐ < 0.3 ‐‐‐‐‐‐‐‐
‐ < 0.5 ‐‐‐‐‐‐‐‐
‐ 0.12 ‐‐‐‐‐‐‐ < 0.0021
‐ < 0.0017 ‐‐‐‐‐‐‐ 0.0034 J
‐ < 0.33 ‐‐‐‐‐‐‐‐
‐ < 0.31 ‐‐‐‐‐‐‐‐
‐ < 2.5 ‐‐‐‐‐‐‐‐
‐ < 0.39 ‐‐‐‐‐‐‐‐
‐ < 0.0022 ‐‐‐‐‐‐‐ < 0.0022
‐ < 0.28 ‐‐‐‐‐‐‐‐
‐ < 0.81 ‐‐‐‐‐‐‐‐
‐ < 0.0041 ‐‐‐‐‐‐‐ < 0.004
‐ < 1.6 ‐‐‐‐‐‐‐‐
‐ < 0.23 ‐‐‐‐‐‐‐‐
‐ < 0.42 ‐‐‐‐‐‐‐‐
‐ < 0.68 ‐‐‐‐‐‐‐‐
‐ < 1.9 ‐‐‐‐‐‐‐‐
‐ 0.045 ‐‐‐‐‐‐‐ < 0.0021
‐ < 0.24 ‐‐‐‐‐‐‐‐
‐ 0.029 ‐‐‐‐‐‐‐ 0.01
‐ < 0.27 ‐‐‐‐‐‐‐‐
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 16 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
TPH (mg/kg)
PHC as Gasoline 5,400 97 ‐
Total Petroleum Hydrocarbons (C6) ‐‐‐
Total Petroleum Hydrocarbons (C7) ‐‐‐
Total Petroleum Hydrocarbons (C8) ‐‐‐
Total Petroleum Hydrocarbons (C9‐C10) ‐‐‐
Total Petroleum Hydrocarbons (C11‐C12) ‐‐‐
Total Petroleum Hydrocarbons (C13‐C14) ‐‐‐
Total Petroleum Hydrocarbons (C15‐C16) ‐‐‐
Total Petroleum Hydrocarbons (C17‐C18) ‐‐‐
Total Petroleum Hydrocarbons (C19‐C20) ‐‐‐
Total Petroleum Hydrocarbons (C21‐C22) ‐‐‐
Total Petroleum Hydrocarbons (C23‐C24) ‐‐‐
Total Petroleum Hydrocarbons (C25‐C28) ‐‐‐
Total Petroleum Hydrocarbons (C29‐C32) ‐‐‐
Total Petroleum Hydrocarbons (C33‐C36) ‐‐‐
Total Petroleum Hydrocarbons (C37‐C40) ‐‐‐
Total Petroleum Hydrocarbons (C41‐C44) ‐‐‐
Total Petroleum Hydrocarbons (C6‐C44) ‐‐‐
Total Petroleum Hydrocarbons (C10‐C28) Diesel ‐‐‐
Total Petroleum Hydrocarbons (C10‐C28) DRO ‐‐‐
Total Petroleum Hydrocarbons (>C28‐C44) ‐‐‐
Gasoline C6‐C8 (calculated) 2,900 ‐‐
Diesel C9‐C16 (calculated) 5,400 97 ‐
Oil C17‐C32 (calculated) 7,300 2,400 ‐
‐
VOCs (mg/kg)
1,1,1,2‐Tetrachloroethane ‐ 8.8 ‐
1,1,1‐Trichloroethane 1.7 7,200 ‐
1,1,2,2‐Tetrachloroethane ‐ 2.7 ‐
1,1,2‐Trichloroethane 0.04 ‐‐
1,1‐Dichloroethane 0.56 16 ‐
1,1‐Dichloroethene 0.071 350 ‐
1,1‐Dichloropropene ‐‐‐
1,2,3‐Trichlorobenzene ‐ 300 ‐
1,2,3‐Trichloropropane ‐ 0.021 ‐
1,2,3‐Trimethylbenzene ‐‐‐
1,2,4‐Trichlorobenzene 0.818 35 ‐
1,2,4‐Trimethylbenzene ‐‐‐
1,2‐Dibromo‐3‐chloropropane (DBCP) ‐ 0.057 ‐
1,2‐Dibromoethane (Ethylene Dibromide) ‐ 0.16 ‐
1,2‐Dichlorobenzene 28 ‐‐
1,2‐Dichloroethane 0.0028 ‐‐
1,2‐Dichloropropane ‐‐‐
B29‐04 B29‐05 B29‐05 B29‐05A B29‐05A B29‐05B B29‐05B B29‐05C B29‐05C B29‐06 B29‐04‐5 B29‐05‐2 B29‐05‐5 B29‐05A‐020 B29‐05A‐030 B29‐05B‐020 B29‐05B‐030 B29‐05C‐020 B29‐05C‐030 B29‐06‐1 6/27/2016 6/28/2016 6/28/2016 1/10/2020 1/10/2020 1/10/2020 1/10/2020 1/10/2020 1/10/2020 6/29/2016

4.5 ‐ 5 (ft) 1.5 ‐ 2 (ft) 4.5 ‐ 5 (ft) 1.5 ‐ 2 (ft) 2.5 ‐ 3 (ft) 1.5 ‐ 2 (ft) 2.5 ‐ 3 (ft) 1.5 ‐ 2 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) ‐‐‐‐‐‐‐‐‐‐
< 1.3 < 13 < 1.2 ‐‐‐‐‐‐ < 12
< 1.3 < 13 < 1.2 ‐‐‐‐‐‐ < 12
< 1.3 < 13 < 1.2 ‐‐‐‐‐‐ < 12
< 1.3 < 13 < 1.2 ‐‐‐‐‐‐ < 12
< 1.3 < 13 < 1.2 ‐‐‐‐‐‐ < 12
< 1.3 < 13 < 1.2 ‐‐‐‐‐‐ < 12
< 1.3 < 13 < 1.2 ‐‐‐‐‐‐ < 12

1.3 J < 13 < 1.2 ‐‐‐‐‐‐ < 12

4.8 J < 13 < 1.2 ‐‐‐‐‐‐ < 12
8 < 13 < 1.2 ‐‐‐‐‐‐ < 12

2.4 J 26 J < 1.2 ‐‐‐‐‐‐ < 12
< 1.3 49 J 1.6 J ‐‐‐‐‐‐ 35 J
81 110 4.4 J ‐‐‐‐‐‐ 140
110 130 13 ‐‐‐‐‐‐ 160

5.3 160 1.7 J ‐‐‐‐‐‐ 67
12 85 2.9 J ‐‐‐‐‐‐ < 12
220 560 24 ‐‐‐‐‐‐ 400
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
< 1.3 < 13 < 1.2 ‐‐‐‐‐‐ < 12
< 1.3 < 13 < 1.2 ‐‐‐‐‐‐ < 12

97.5 185 6 ‐‐‐‐‐‐ 175
< 0.00024 < 0.00025 < 0.00024 ‐‐‐‐‐‐ < 0.00024
< 0.00023 < 0.00023 < 0.00023 ‐‐‐‐‐‐ < 0.00023
< 0.00035 < 0.00036 < 0.00035 ‐‐‐‐‐‐ < 0.00035
< 0.00036 < 0.00036 < 0.00036 ‐‐‐‐‐‐ < 0.00036
< 0.00021 < 0.00022 < 0.00021 ‐‐‐‐‐‐ < 0.00021
< 0.00035 < 0.00036 < 0.00035 ‐‐‐‐‐‐ < 0.00035
< 0.00033 < 0.00034 < 0.00033 ‐‐‐‐‐‐ < 0.00033
< 0.00092 < 0.00094 < 0.00092 ‐‐‐‐‐‐ < 0.00093
< 0.00083 < 0.00085 < 0.00084 ‐‐‐‐‐‐ < 0.00084
‐‐‐‐‐‐‐‐‐‐
< 0.00031 < 0.00032 < 0.00031 ‐‐‐‐‐‐ < 0.00032
< 0.00059 < 0.0006 < 0.00059 ‐‐‐‐‐‐ < 0.0006
< 0.0017 < 0.0018 < 0.0018 ‐‐‐‐‐‐ < 0.0018
< 0.00026 < 0.00026 < 0.00026 ‐‐‐‐‐‐ < 0.00026
< 0.00023 < 0.00024 < 0.00023 ‐‐‐‐‐‐ < 0.00023
< 0.00032 < 0.00032 < 0.00032 ‐‐‐‐‐‐ < 0.00032
< 0.00044 < 0.00045 < 0.00044 ‐‐‐‐‐‐ < 0.00045
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 17 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
VOCs (mg/kg) ‐
1,3,5‐Trimethylbenzene ‐‐‐
1,3‐Dichlorobenzene ‐‐‐
1,3‐Dichloropropane ‐ 2,200 ‐
1,4‐Dichloro‐2‐butene ‐‐‐
1,4‐Dichlorobenzene 0.23 ‐‐
2,2‐Dichloropropane ‐‐‐
2‐Butanone (Methyl Ethyl Ketone) ‐‐‐
2‐Chlorotoluene ‐ 2,500 ‐
2‐Hexanone ‐‐‐2‐Phenylbutane (sec‐Butylbenzene) ‐ 12,000 ‐ 4‐Chlorotoluene ‐ 2,300 ‐
4‐Methyl‐2‐Pentanone (Methyl Isobutyl Ketone) ‐‐‐
Acetone ‐‐‐Acrylonitrile ‐‐‐Allyl chloride ‐‐‐
Benzene 0.019 1.4 ‐Bromobenzene ‐‐‐Bromodichloromethane ‐ 1.3 ‐ Bromoform ‐ 86 ‐
Bromomethane (Methyl Bromide) ‐‐‐
Carbon disulfide ‐‐‐
Carbon tetrachloride ‐ 2.9 ‐
Chlorobenzene 2 ‐‐Chlorobromomethane ‐ 4.1 ‐
Chloroethane ‐‐‐Chloroform (Trichloromethane) ‐‐‐
Chloromethane (Methyl Chloride) ‐‐‐
cis‐1,2‐Dichloroethene 4.9 84 ‐
cis‐1,3‐Dichloropropene ‐‐‐
cis‐1,4‐Dichloro‐2‐butene ‐‐‐Cymene (p‐Isopropyltoluene) ‐ 1,600 ‐ Dibromochloromethane ‐‐‐Dibromomethane ‐‐‐Dichlorodifluoromethane (CFC‐12) ‐‐‐ Diisopropyl ether (DIPE) ‐‐‐
Ethylbenzene 7.7 ‐‐Hexachlorobutadiene ‐ 5.3 ‐
Isopropylbenzene (Cumene) ‐‐‐
m,p‐Xylenes 6 ‐‐
Methyl Tert Butyl Ether ‐‐‐
Methylene chloride 0.019 26 ‐
Naphthalene ‐ 6.5 ‐
n‐Butylbenzene ‐‐‐
B29‐04 B29‐05 B29‐05 B29‐05A B29‐05A B29‐05B B29‐05B B29‐05C B29‐05C B29‐06 B29‐04‐5 B29‐05‐2 B29‐05‐5 B29‐05A‐020 B29‐05A‐030 B29‐05B‐020 B29‐05B‐030 B29‐05C‐020 B29‐05C‐030 B29‐06‐1 6/27/2016 6/28/2016 6/28/2016 1/10/2020 1/10/2020 1/10/2020 1/10/2020 1/10/2020 1/10/2020 6/29/2016

4.5 ‐ 5 (ft) 1.5 ‐ 2 (ft) 4.5 ‐ 5 (ft) 1.5 ‐ 2 (ft) 2.5 ‐ 3 (ft) 1.5 ‐ 2 (ft) 2.5 ‐ 3 (ft) 1.5 ‐ 2 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) < 0.00055 < 0.00056 < 0.00056 ‐‐‐‐‐‐ < 0.00056
< 0.00018 < 0.00018 < 0.00018 ‐‐‐‐‐‐ < 0.00018
< 0.00025 < 0.00026 < 0.00026 ‐‐‐‐‐‐ < 0.00026
‐‐‐‐‐‐‐‐‐‐
< 0.00022 < 0.00023 < 0.00022 ‐‐‐‐‐‐ < 0.00023
< 0.00033 < 0.00034 < 0.00033 ‐‐‐‐‐‐ < 0.00034
< 0.0038 < 0.0039 < 0.0038 ‐‐‐‐‐‐ < 0.0038
< 0.00023 < 0.00024 < 0.00023 ‐‐‐‐‐‐ < 0.00024
< 0.0018 < 0.0018 < 0.0018 ‐‐‐‐‐‐ < 0.0018
< 0.00058 < 0.00059 < 0.00058 ‐‐‐‐‐‐ < 0.00059
< 0.00021 < 0.00022 < 0.00022 ‐‐‐‐‐‐ < 0.00022
< 0.0043 < 0.0044 < 0.0044 ‐‐‐‐‐‐ < 0.0044
< 0.0063 < 0.0064 < 0.0063 ‐‐‐‐‐‐ < 0.0063
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
< 0.00013 < 0.00013 < 0.00013 ‐‐‐‐‐‐ < 0.00013
< 0.00021 < 0.00022 < 0.00021 ‐‐‐‐‐‐ < 0.00021
< 0.00023 < 0.00024 < 0.00024 ‐‐‐‐‐‐ < 0.00024
< 0.0008 < 0.00082 < 0.0008 ‐‐‐‐‐‐ < 0.00081
< 0.0095 < 0.0097 < 0.0095 ‐‐‐‐‐‐ < 0.0096
< 0.00031 < 0.00031 < 0.00031 ‐‐‐‐‐‐ < 0.00031
< 0.00028 < 0.00029 < 0.00029 ‐‐‐‐‐‐ < 0.00029
< 0.00022 < 0.00023 < 0.00023 ‐‐‐‐‐‐ < 0.00023
< 0.00069 < 0.00071 < 0.0007 ‐‐‐‐‐‐ < 0.0007
< 0.0015 < 0.0015 < 0.0015 ‐‐‐‐‐‐ < 0.0015
< 0.00024 0.0005 J 0.00079 J ‐‐‐‐‐‐ < 0.00024
< 0.00031 < 0.00031 < 0.00031 ‐‐‐‐‐‐ < 0.00031
< 0.00028 < 0.00029 < 0.00028 ‐‐‐‐‐‐ < 0.00028
< 0.00026 < 0.00026 < 0.00026 ‐‐‐‐‐‐ < 0.00026
‐‐‐‐‐‐‐‐‐‐
< 0.00063 < 0.00065 < 0.00064 ‐‐‐‐‐‐ < 0.00064
< 0.00057 < 0.00059 < 0.00058 ‐‐‐‐‐‐ < 0.00058
< 0.00078 < 0.0008 < 0.00078 ‐‐‐‐‐‐ < 0.00079
< 0.00045 < 0.00046 < 0.00045 ‐‐‐‐‐‐ < 0.00045
‐‐‐‐‐‐‐‐‐‐
< 0.00015 < 0.00016 < 0.00015 ‐‐‐‐‐‐ < 0.00015
‐‐‐‐‐‐‐‐‐‐
< 0.00055 < 0.00056 < 0.00055 ‐‐‐‐‐‐ < 0.00056
< 0.00027 < 0.00028 < 0.00027 ‐‐‐‐‐‐ < 0.00027
< 0.0003 < 0.0003 < 0.0003 ‐‐‐‐‐‐ < 0.0003
< 0.0013 < 0.0014 < 0.0014 ‐‐‐‐‐‐ < 0.0014
< 0.00082 < 0.00084 < 0.00082 ‐‐‐‐‐‐ < 0.00083
< 0.00016 < 0.00016 < 0.00016 ‐‐‐‐‐‐ < 0.00016
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 18 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
VOCs (mg/kg) ‐
n‐Propylbenzene ‐‐‐
o‐Xylene 6 ‐‐
PHC as Gasoline 5,400 97 ‐
Styrene ‐ 32,000 ‐
Tert‐Amyl Methyl Ether (TAME) ‐‐‐
Tert‐Butyl Alcohol (tert‐Butanol) ‐‐‐
Tert‐Butyl Ethyl Ether (ETBE) ‐‐‐tert‐Butylbenzene ‐‐‐
Tetrachloroethene 2.1 2.7 ‐
Toluene 0.44 5,300 ‐trans‐1,2‐Dichloroethene 0.17 600 ‐ trans‐1,3‐Dichloropropene ‐‐‐
Trichloroethene 27 63 2,040
Trichlorofluoromethane (CFC‐11) ‐ 5,400 ‐
Trifluorotrichloroethane (Freon 113) 6.4 ‐‐
Vinyl acetate ‐‐‐
Vinyl chloride 13 0.15 ‐
Xylene (total) 6 ‐‐
Notes and Abbreviations:

BOLD = concentration detected at or above
reported detection limit.

No COPC in soil exceeded its Total Threshold Limit Concentration (TTLC). < = analyte not detected above the indicated
reporting limit.B = compound detected in the associated blank J = estimated concentration.‐ = not analyzed or not applicable. mg/kg = milligrams per kilogram.
bgs = below ground surface.

GPL: Groundwater Protection Level (Haley & Aldrich 2014a, 2014b) TTLC: Total Threshold Limit Concentration, CCR Title 22 Section 66261.24 1 Cancer Endpoint. If there is no Cancer Endpoint, the Noncancer Endpoint is noted.2 Site background3 U.S. EPA Region 9 Remediation Screening Level DTSC‐SL: Commercial/Industrial Department of Toxic Substances Control‐Screening Level, HHRA Note 3, June 2020.

B29‐04 B29‐05 B29‐05 B29‐05A B29‐05A B29‐05B B29‐05B B29‐05C B29‐05C B29‐06 B29‐04‐5 B29‐05‐2 B29‐05‐5 B29‐05A‐020 B29‐05A‐030 B29‐05B‐020 B29‐05B‐030 B29‐05C‐020 B29‐05C‐030 B29‐06‐1 6/27/2016 6/28/2016 6/28/2016 1/10/2020 1/10/2020 1/10/2020 1/10/2020 1/10/2020 1/10/2020 6/29/2016

4.5 ‐ 5 (ft) 1.5 ‐ 2 (ft) 4.5 ‐ 5 (ft) 1.5 ‐ 2 (ft) 2.5 ‐ 3 (ft) 1.5 ‐ 2 (ft) 2.5 ‐ 3 (ft) 1.5 ‐ 2 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) < 0.0005 < 0.00052 < 0.00051 ‐‐‐‐‐‐ < 0.00051
< 0.00056 < 0.00057 < 0.00056 ‐‐‐‐‐‐ < 0.00057
‐‐‐‐‐‐‐‐‐‐
< 0.00061 < 0.00062 < 0.00061 ‐‐‐‐‐‐ < 0.00061
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
< 0.00015 < 0.00016 < 0.00015 ‐‐‐‐‐‐ < 0.00015
< 0.00021 < 0.00022 < 0.00021 ‐‐‐‐‐‐ < 0.00021
< 0.00052 < 0.00053 < 0.00052 ‐‐‐‐‐‐ < 0.00052
< 0.00051 < 0.00052 < 0.00051 ‐‐‐‐‐‐ < 0.00051
< 0.00061 < 0.00062 < 0.00061 ‐‐‐‐‐‐ < 0.00062
< 0.0003 0.015 0.014 ‐‐‐‐‐‐ < 0.00031
< 0.00038 < 0.00039 < 0.00038 ‐‐‐‐‐‐ < 0.00038
< 0.00035 < 0.00036 < 0.00036 ‐‐‐‐‐‐ < 0.00036
< 0.0048 < 0.0049 < 0.0048 ‐‐‐‐‐‐ < 0.0048
< 0.00051 < 0.00052 < 0.00051 ‐‐‐‐‐‐ < 0.00051
‐‐‐‐‐‐‐‐‐‐
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 19 of 102 ends

LocationSample Name
Sample Date
Sample Depth
Metals (mg/kg) GPL DTSC TTLC
Antimony 7.84 ‐ 500
Arsenic 24.3 0.36/82 500
Barium 43000 ‐ 10,000
Beryllium ‐ 6,900 75
Cadmium 970 4,000 100Chromium 660 ‐ 2,500
Chromium VI (Hexavalent) 30 6.2 500
Cobalt ‐‐ 8,000
Copper 5600 ‐ 2,500
Lead 232 320 1,000Mercury 2.1 4.4 20Molybdenum ‐‐ 3,500 Nickel 3400 64,000 2,000Selenium ‐‐ 100Silver ‐‐ 500Thallium ‐‐ 700Vanadium ‐‐ 2,400 Zinc ‐‐ 5,000
‐
PCBs (mg/kg)
Aroclor‐1016 (PCB‐1016) ‐ 17 ‐
Aroclor‐1221 (PCB‐1221) ‐ 0.53 ‐
Aroclor‐1232 (PCB‐1232) ‐ 0.49 ‐
Aroclor‐1242 (PCB‐1242) ‐ 0.58 ‐
Aroclor‐1248 (PCB‐1248) ‐ 0.58 ‐
Aroclor‐1254 (PCB‐1254) ‐ 0.59 ‐
Aroclor‐1260 (PCB‐1260) ‐ 0.6 ‐
Aroclor‐1262 (PCB‐1262) ‐‐‐
Aroclor‐1268 (PCB‐1268) ‐‐‐
Total PCBs 130 0.58 50
‐
PEST (mg/kg)
4,4'‐DDD ‐ 6.2 1.0
4,4'‐DDE ‐ 9.3 1.04,4'‐DDT ‐ 7.1 1.0
Aldrin ‐ 0.18 1.4
alpha‐BHC ‐ 0.24 ‐
beta‐BHC ‐ 0.82 ‐
Chlordane ‐ 6.1 2.5
delta‐BHC ‐‐‐
Dieldrin ‐ 0.093 8.0
Endosulfan I ‐ 6,000 ‐
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
B29‐06 B29‐07 B29‐07 B29‐07A B29‐07A B29‐07B B29‐07B B29‐08 B29‐08 B29‐09 B29‐06‐5 B29‐07‐1 B29‐07‐3 B29‐07A‐010 B29‐07A‐030 B29‐07B‐010 B29‐07B‐030 B29‐08‐1 B29‐08‐5 B29‐09‐1 6/29/2016 6/29/2016 6/29/2016 1/10/2020 1/10/2020 1/10/2020 1/10/2020 6/28/2016 6/28/2016 6/29/2016

4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) < 0.145 < 0.143 < 0.145 ‐‐‐‐ < 0.144 < 0.147 0.208 J

4.86 21.8 2.86 24.6 1.98 J 22 1.63 J 2.16 4.56 5.76

48.8 130 73.1 ‐‐‐‐ 55.4 37.3 37.2

0.257 0.404 0.401 ‐‐‐‐ 0.364 0.407 0.228 J

0.473 J 0.262 J 0.385 J ‐‐‐‐ 0.236 J 0.295 J 0.398 J

11.8 7 16 ‐‐‐‐ 11.3 13.5 11.26.88 2.71 5.5 ‐‐‐‐ 8.91 6.27 6.53

21.8 6.97 8.18 ‐‐‐‐ 5.75 10.2 23.1

12.5 7.82 3.58 ‐‐‐‐ 4.93 8.29 13

0.0357 J < 0.00587 0.0102 J ‐‐‐‐ 0.0203 J 0.0168 J 0.0233 J

0.219 J 0.221 J < 0.129 ‐‐‐‐ < 0.128 < 0.13 0.143 J

6.35 4.59 6.28 ‐‐‐‐ 8.18 6.84 4.67

0.516 J 0.753 < 0.292 ‐‐‐‐ < 0.289 < 0.295 < 0.295
< 0.0832 < 0.0824 < 0.0836 ‐‐‐‐ < 0.0828 < 0.0844 < 0.0844 < 0.147 0.338 J 0.376 J ‐‐‐‐ 0.168 J 0.173 J 0.488 J

32.8 16.6 44.5 ‐‐‐‐ 33.3 34.3 27.247.5 33.9 29.4 ‐‐‐‐ 20.8 25.4 31.8 < 0.021 < 0.021 < 0.021 ‐‐‐‐ < 0.021 < 0.021 < 0.021
< 0.042 < 0.042 < 0.042 ‐‐‐‐ < 0.042 < 0.042 < 0.042
< 0.025 < 0.025 < 0.025 ‐‐‐‐ < 0.025 < 0.025 < 0.025
< 0.037 < 0.037 < 0.037 ‐‐‐‐ < 0.037 < 0.037 < 0.037
< 0.032 < 0.032 < 0.032 ‐‐‐‐ < 0.032 < 0.032 < 0.032
< 0.032 < 0.032 < 0.031 ‐‐‐‐ < 0.031 < 0.032 < 0.031
< 0.03 < 0.03 < 0.03 ‐‐‐‐ 0.17 0.036 J < 0.03
< 0.035 < 0.035 < 0.034 ‐‐‐‐ < 0.034 < 0.035 < 0.034
< 0.033 < 0.033 < 0.033 ‐‐‐‐ < 0.033 < 0.033 < 0.033
< 0.042 < 0.042 < 0.042 ‐‐‐‐ 0.17 0.036 < 0.042
‐ < 0.0024 ‐‐‐‐‐‐‐ < 0.0023
‐ < 0.0022 ‐‐‐‐‐‐‐ < 0.0022
‐ < 0.0022 ‐‐‐‐‐‐‐ < 0.0022
‐ < 0.0022 ‐‐‐‐‐‐‐ < 0.0022
‐ < 0.0037 ‐‐‐‐‐‐‐ < 0.0037
‐ < 0.0025 ‐‐‐‐‐‐‐ < 0.0025
‐ < 0.026 ‐‐‐‐‐‐‐ < 0.026
‐ < 0.0044 ‐‐‐‐‐‐‐ < 0.0044
‐ < 0.0022 ‐‐‐‐‐‐‐ < 0.0022
‐ < 0.002 ‐‐‐‐‐‐‐ < 0.002
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 20 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
PEST (mg/kg) ‐
Endosulfan II ‐ 6,000 ‐
Endosulfan sulfate ‐ 11,000 ‐
Endrin ‐ 160 0.2
Endrin aldehyde ‐‐‐
Endrin ketone ‐‐‐
gamma‐BHC (Lindane) ‐ 2 4.0
Heptachlor ‐ 0.63 4.7
Heptachlor epoxide ‐ 0.33 ‐
Methoxychlor ‐ 2600 100
Toxaphene ‐ 1.2 5
‐
SVOCs (mg/kg)
1,2,4‐Trichlorobenzene 0.818 35 ‐
1,2‐Dichlorobenzene 28 ‐‐
1,3‐Dichlorobenzene ‐‐‐
1,4‐Dichlorobenzene 0.23 ‐‐
1‐Methylnaphthalene ‐ 30 ‐
2,2'‐oxybis(2‐Chloropropane) ‐‐‐
2,4,5‐Trichlorophenol ‐ 53,000 ‐
2,4,6‐Trichlorophenol ‐ 21 ‐
2,4‐Dichlorophenol ‐ 1,600 ‐
2,4‐Dimethylphenol ‐ 11,000 ‐
2,4‐Dinitrophenol ‐ 1,100 ‐
2,4‐Dinitrotoluene ‐‐‐
2,6‐Dichlorophenol ‐ 4.7 ‐
2,6‐Dinitrotoluene ‐ 0.99 ‐
2‐Chloronaphthalene ‐ 27,000 ‐
2‐Chlorophenol ‐ 3,900 ‐
2‐Methylnaphthalene ‐ 1,300 ‐
2‐Methylphenol (o‐Cresol) ‐ 26,000 ‐
2‐Nitroaniline ‐ 5,200 ‐
2‐Nitrophenol ‐‐‐3,3'‐Dichlorobenzidine ‐ 0.93 ‐
3‐Nitroaniline ‐‐‐
4,6‐Dinitro‐2‐methylphenol ‐ 42 ‐
4‐Bromophenyl phenyl ether ‐‐‐
4‐Chloro‐3‐methylphenol ‐ 53,000 ‐
4‐Chloroaniline ‐ 7.4 ‐
4‐Chlorophenyl phenyl ether ‐‐‐
4‐Nitroaniline ‐ 74 ‐
4‐Nitrophenol ‐‐‐
B29‐06 B29‐07 B29‐07 B29‐07A B29‐07A B29‐07B B29‐07B B29‐08 B29‐08 B29‐09 B29‐06‐5 B29‐07‐1 B29‐07‐3 B29‐07A‐010 B29‐07A‐030 B29‐07B‐010 B29‐07B‐030 B29‐08‐1 B29‐08‐5 B29‐09‐1 6/29/2016 6/29/2016 6/29/2016 1/10/2020 1/10/2020 1/10/2020 1/10/2020 6/28/2016 6/28/2016 6/29/2016

4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) ‐ < 0.0024 ‐‐‐‐‐‐‐ < 0.0023
‐ < 0.0026 ‐‐‐‐‐‐‐ < 0.0026
‐ < 0.0024 ‐‐‐‐‐‐‐ < 0.0023
‐ < 0.003 ‐‐‐‐‐‐‐ < 0.003
‐ < 0.0025 ‐‐‐‐‐‐‐ < 0.0025
‐ < 0.0022 ‐‐‐‐‐‐‐ < 0.0022
‐ < 0.0022 ‐‐‐‐‐‐‐ < 0.0021
‐ < 0.0037 ‐‐‐‐‐‐‐ < 0.0037
‐ < 0.0027 ‐‐‐‐‐‐‐ < 0.0027
‐ < 0.045 ‐‐‐‐‐‐‐ < 0.044
‐ < 0.29 ‐‐‐‐‐‐ < 0.3 < 0.059
‐ < 0.32 ‐‐‐‐‐‐ < 0.32 < 0.064
‐ < 0.36 ‐‐‐‐‐‐ < 0.37 < 0.073
‐ < 0.37 ‐‐‐‐‐‐ < 0.38 < 0.075
‐ < 0.28 ‐‐‐‐‐‐ < 0.28 < 0.056
‐ < 0.29 ‐‐‐‐‐‐ < 0.29 < 0.057
‐ < 0.32 ‐‐‐‐‐‐ < 0.32 < 0.064
‐ < 0.38 ‐‐‐‐‐‐ < 0.38 < 0.077
‐ < 0.29 ‐‐‐‐‐‐ < 0.29 < 0.058
‐ < 1.3 ‐‐‐‐‐‐ < 1.3 < 0.27
‐ < 1.7 ‐‐‐‐‐‐ < 1.7 < 0.34
‐ < 0.33 ‐‐‐‐‐‐ < 0.33 < 0.067
‐ < 0.46 ‐‐‐‐‐‐ < 0.47 < 0.093
‐ < 0.36 ‐‐‐‐‐‐ < 0.36 < 0.073
‐ < 0.29 ‐‐‐‐‐‐ < 0.3 < 0.059
‐ < 0.33 ‐‐‐‐‐‐ < 0.33 < 0.067
‐ < 0.3 ‐‐‐‐‐‐ < 0.3 < 0.06
‐ < 0.43 ‐‐‐‐‐‐ < 0.43 < 0.087
‐ < 0.26 ‐‐‐‐‐‐ < 0.26 < 0.052
‐ < 0.34 ‐‐‐‐‐‐ < 0.34 < 0.067
‐ < 1.8 ‐‐‐‐‐‐ < 1.8 < 0.36
‐ < 0.35 ‐‐‐‐‐‐ < 0.35 < 0.07
‐ < 3.1 ‐‐‐‐‐‐ < 3.2 < 0.63
‐ < 0.3 ‐‐‐‐‐‐ < 0.31 < 0.061
‐ < 0.33 ‐‐‐‐‐‐ < 0.33 < 0.066
‐ < 0.32 ‐‐‐‐‐‐ < 0.33 < 0.065
‐ < 0.32 ‐‐‐‐‐‐ < 0.32 < 0.064
‐ < 0.32 ‐‐‐‐‐‐ < 0.33 < 0.065
‐ < 0.27 ‐‐‐‐‐‐ < 0.27 < 0.054
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 21 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
SVOCs (mg/kg) ‐
Acenaphthene ‐ 23,000 ‐
Acenaphthylene ‐‐‐Aniline ‐ 260 ‐
Anthracene ‐ 130,000 ‐
Azobenzene ‐‐‐Benzidine ‐ 0.003 ‐
Benzo(a)anthracene ‐ 12 ‐
Benzo(a)pyrene 14 1.3 ‐Benzo(b)fluoranthene ‐ 13 ‐
Benzo(g,h,i)perylene ‐‐‐Benzo(k)fluoranthene ‐ 210,000 ‐ Benzoic acid ‐ 2,100,000 ‐
Benzyl Alcohol ‐ 53,000 ‐
bis(2‐Chloroethoxy)methane ‐ 1,600 ‐
bis(2‐Chloroethyl)ether ‐ 0.47 ‐
bis(2‐Ethylhexyl)phthalate 57 110 ‐
Butyl benzylphthalate ‐ 780 ‐
Chrysene ‐ 1,300 ‐
Dibenz(a,h)anthracene ‐ 0.31 ‐
Dibenzofuran ‐ 650 ‐
Diethyl phthalate ‐ 420,000 ‐Dimethyl phthalate ‐‐‐
Di‐n‐butylphthalate ‐ 53,000 ‐
Di‐n‐octyl phthalate ‐ 5,300 ‐Fluoranthene ‐ 18,000 ‐
Fluorene ‐ 17,000 ‐
Hexachlorobenzene ‐ 0.86 ‐
Hexachlorobutadiene ‐ 5.3 ‐
Hexachlorocyclopentadiene ‐‐‐Hexachloroethane ‐‐‐Indeno(1,2,3‐cd)pyrene ‐ 13 ‐ Isophorone ‐ 1,600 ‐
m,p‐Cresols ‐‐‐
Naphthalene ‐ 6.5 ‐
Nitrobenzene ‐‐‐N‐Nitrosodimethylamine ‐ 0.53 ‐
N‐Nitrosodi‐n‐propylamine ‐ 0.21 ‐
N‐Nitrosodiphenylamine ‐ 300 ‐
Pentachlorophenol 0.0717 2 ‐Phenanthrene ‐‐‐Phenol ‐ 160,000 ‐ Pyrene ‐ 13,000 ‐
Pyridine ‐ 530 ‐
B29‐06 B29‐07 B29‐07 B29‐07A B29‐07A B29‐07B B29‐07B B29‐08 B29‐08 B29‐09 B29‐06‐5 B29‐07‐1 B29‐07‐3 B29‐07A‐010 B29‐07A‐030 B29‐07B‐010 B29‐07B‐030 B29‐08‐1 B29‐08‐5 B29‐09‐1 6/29/2016 6/29/2016 6/29/2016 1/10/2020 1/10/2020 1/10/2020 1/10/2020 6/28/2016 6/28/2016 6/29/2016

4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) ‐ < 0.004 ‐‐‐‐‐‐ < 0.32 < 0.063
‐ < 0.0042 ‐‐‐‐‐‐ < 0.3 < 0.06
‐ < 0.3 ‐‐‐‐‐‐ < 0.3 < 0.06
‐ < 0.002 ‐‐‐‐‐‐ < 0.32 < 0.063
‐ < 0.27 ‐‐‐‐‐‐ < 0.27 < 0.054
‐ < 4.1 ‐‐‐‐‐‐ < 4.1 < 0.83
‐ < 0.0025 ‐‐‐‐‐‐ < 0.28 < 0.057
‐ 0.011 ‐‐‐‐‐‐ < 0.27 < 0.054
‐ 0.01 ‐‐‐‐‐‐ < 0.32 < 0.064
‐ 0.026 ‐‐‐‐‐‐ < 0.28 < 0.055
‐ 0.032 ‐‐‐‐‐‐ < 0.32 < 0.065
‐ < 2.5 ‐‐‐‐‐‐ < 2.5 < 0.5
‐ < 0.33 ‐‐‐‐‐‐ < 0.33 < 0.066
‐ < 0.28 ‐‐‐‐‐‐ < 0.28 < 0.056
‐ < 2 ‐‐‐‐‐‐ < 2< 0.41
‐ < 0.27 ‐‐‐‐‐‐ < 0.27 < 0.053
‐ < 0.27 ‐‐‐‐‐‐ < 0.27 < 0.054
‐ < 0.0021 ‐‐‐‐‐‐ < 0.32 < 0.064
‐ < 0.0029 ‐‐‐‐‐‐ < 0.23 < 0.046
‐ < 0.3 ‐‐‐‐‐‐ < 0.3 < 0.06
‐ < 0.29 ‐‐‐‐‐‐ < 0.29 < 0.058
‐ < 0.56 ‐‐‐‐‐‐ < 0.57 < 0.11
‐ < 0.3 ‐‐‐‐‐‐ < 0.3 < 0.06
‐ < 0.5 ‐‐‐‐‐‐ < 0.5 < 0.1
‐ < 0.0021 ‐‐‐‐‐‐ < 0.31 < 0.062
‐ < 0.0017 ‐‐‐‐‐‐ < 0.32 < 0.063
‐ < 0.33 ‐‐‐‐‐‐ < 0.33 < 0.067
‐ < 0.31 ‐‐‐‐‐‐ < 0.32 < 0.063
‐ < 2.5 ‐‐‐‐‐‐ < 2.5 < 0.5
‐ < 0.39 ‐‐‐‐‐‐ < 0.39 < 0.078
‐ < 0.0022 ‐‐‐‐‐‐ < 0.27 < 0.053
‐ < 0.28 ‐‐‐‐‐‐ < 0.28 < 0.057
‐ < 0.81 ‐‐‐‐‐‐ < 0.81 < 0.16
‐ < 0.004 ‐‐‐‐‐‐ < 0.29 < 0.059
‐ < 1.6 ‐‐‐‐‐‐ < 1.6 < 0.32
‐ < 0.23 ‐‐‐‐‐‐ < 0.24 < 0.047
‐ < 0.42 ‐‐‐‐‐‐ < 0.42 < 0.084
‐ < 0.68 ‐‐‐‐‐‐ < 0.68 < 0.14
‐ < 1.9 ‐‐‐‐‐‐ < 1.9 < 0.39
‐ < 0.0021 ‐‐‐‐‐‐ < 0.34 < 0.069
‐ < 0.24 ‐‐‐‐‐‐ < 0.24 < 0.048
‐ < 0.0029 ‐‐‐‐‐‐ < 0.38 < 0.077
‐ < 0.27 ‐‐‐‐‐‐ < 0.27 < 0.055
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 22 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
TPH (mg/kg)
PHC as Gasoline 5,400 97 ‐
Total Petroleum Hydrocarbons (C6) ‐‐‐
Total Petroleum Hydrocarbons (C7) ‐‐‐
Total Petroleum Hydrocarbons (C8) ‐‐‐
Total Petroleum Hydrocarbons (C9‐C10) ‐‐‐
Total Petroleum Hydrocarbons (C11‐C12) ‐‐‐
Total Petroleum Hydrocarbons (C13‐C14) ‐‐‐
Total Petroleum Hydrocarbons (C15‐C16) ‐‐‐
Total Petroleum Hydrocarbons (C17‐C18) ‐‐‐
Total Petroleum Hydrocarbons (C19‐C20) ‐‐‐
Total Petroleum Hydrocarbons (C21‐C22) ‐‐‐
Total Petroleum Hydrocarbons (C23‐C24) ‐‐‐
Total Petroleum Hydrocarbons (C25‐C28) ‐‐‐
Total Petroleum Hydrocarbons (C29‐C32) ‐‐‐
Total Petroleum Hydrocarbons (C33‐C36) ‐‐‐
Total Petroleum Hydrocarbons (C37‐C40) ‐‐‐
Total Petroleum Hydrocarbons (C41‐C44) ‐‐‐
Total Petroleum Hydrocarbons (C6‐C44) ‐‐‐
Total Petroleum Hydrocarbons (C10‐C28) Diesel ‐‐‐
Total Petroleum Hydrocarbons (C10‐C28) DRO ‐‐‐
Total Petroleum Hydrocarbons (>C28‐C44) ‐‐‐
Gasoline C6‐C8 (calculated) 2,900 ‐‐
Diesel C9‐C16 (calculated) 5,400 97 ‐
Oil C17‐C32 (calculated) 7,300 2,400 ‐
‐
VOCs (mg/kg)
1,1,1,2‐Tetrachloroethane ‐ 8.8 ‐
1,1,1‐Trichloroethane 1.7 7,200 ‐
1,1,2,2‐Tetrachloroethane ‐ 2.7 ‐
1,1,2‐Trichloroethane 0.04 ‐‐
1,1‐Dichloroethane 0.56 16 ‐
1,1‐Dichloroethene 0.071 350 ‐
1,1‐Dichloropropene ‐‐‐
1,2,3‐Trichlorobenzene ‐ 300 ‐
1,2,3‐Trichloropropane ‐ 0.021 ‐
1,2,3‐Trimethylbenzene ‐‐‐
1,2,4‐Trichlorobenzene 0.818 35 ‐
1,2,4‐Trimethylbenzene ‐‐‐
1,2‐Dibromo‐3‐chloropropane (DBCP) ‐ 0.057 ‐
1,2‐Dibromoethane (Ethylene Dibromide) ‐ 0.16 ‐
1,2‐Dichlorobenzene 28 ‐‐
1,2‐Dichloroethane 0.0028 ‐‐
1,2‐Dichloropropane ‐‐‐
B29‐06 B29‐07 B29‐07 B29‐07A B29‐07A B29‐07B B29‐07B B29‐08 B29‐08 B29‐09 B29‐06‐5 B29‐07‐1 B29‐07‐3 B29‐07A‐010 B29‐07A‐030 B29‐07B‐010 B29‐07B‐030 B29‐08‐1 B29‐08‐5 B29‐09‐1 6/29/2016 6/29/2016 6/29/2016 1/10/2020 1/10/2020 1/10/2020 1/10/2020 6/28/2016 6/28/2016 6/29/2016

4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) ‐‐‐‐‐‐‐‐‐‐
< 13 < 6.3 < 1.3 ‐‐‐‐ < 25 < 25 < 1.3
< 13 < 6.3 < 1.3 ‐‐‐‐ < 25 < 25 < 1.3
< 13 < 6.3 < 1.3 ‐‐‐‐ < 25 < 25 < 1.3
< 13 < 6.3 < 1.3 ‐‐‐‐ < 25 < 25 < 1.3
< 13 < 6.3 < 1.3 ‐‐‐‐ < 25 < 25 < 1.3
< 13 < 6.3 < 1.3 ‐‐‐‐ < 25 < 25 < 1.3
< 13 < 6.3 < 1.3 ‐‐‐‐ < 25 < 25 < 1.3
29 J < 6.3 < 1.3 ‐‐‐‐ < 25 < 25 < 1.3
21 J < 6.3 < 1.3 ‐‐‐‐ < 25 < 25 < 1.3
43 J < 6.3 < 1.3 ‐‐‐‐ < 25 < 25 < 1.3
55 < 6.3 1.4 J ‐‐‐‐ < 25 < 25 < 1.3
69 7.1 J 2.6 J ‐‐‐‐ 26 J 31 J < 1.3
200 140 3.4 J ‐‐‐‐ 140 160 6.2
130 170 2.5 J ‐‐‐‐ 130 160 4.2 J
140 6.5 J < 1.3 ‐‐‐‐ 86 J 110 5.2
< 13 18 J < 1.3 ‐‐‐‐ 36 J 42 J < 1.3
690 340 9.9 ‐‐‐‐ 420 510 16
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
< 13 < 6.3 < 1.3 ‐‐‐‐ < 25 < 25 < 1.3
< 13 < 6.3 < 1.3 ‐‐‐‐ < 25 < 25 < 1.3
417 147.1 7.4 ‐‐‐‐ 166 191 6.2
< 0.00023 < 0.00025 < 0.00025 ‐‐‐‐ < 0.00024 < 0.00025 < 0.00024 < 0.00022 < 0.00023 < 0.00023 ‐‐‐‐ < 0.00023 < 0.00024 < 0.00022 < 0.00034 < 0.00035 < 0.00036 ‐‐‐‐ < 0.00035 < 0.00036 < 0.00034 < 0.00034 < 0.00036 < 0.00037 ‐‐‐‐ < 0.00036 < 0.00037 < 0.00035 < 0.00021 < 0.00022 < 0.00022 ‐‐‐‐ < 0.00021 < 0.00022 < 0.00021 < 0.00034 < 0.00035 < 0.00036 ‐‐‐‐ < 0.00035 < 0.00036 < 0.00034 < 0.00032 < 0.00034 < 0.00034 ‐‐‐‐ < 0.00033 < 0.00034 < 0.00033 < 0.00089 < 0.00093 < 0.00095 ‐‐‐‐ < 0.00092 < 0.00096 < 0.00091 < 0.00081 < 0.00085 < 0.00086 ‐‐‐‐ < 0.00084 < 0.00087 < 0.00082 ‐‐‐‐‐‐‐‐‐‐
< 0.0003 < 0.00032 < 0.00032 ‐‐‐‐ < 0.00031 < 0.00033 < 0.00031 < 0.00057 < 0.0006 < 0.00061 ‐‐‐‐ < 0.00059 < 0.00061 < 0.00058 < 0.0017 < 0.0018 < 0.0018 ‐‐‐‐ < 0.0018 < 0.0018 < 0.0017 < 0.00025 < 0.00026 < 0.00026 ‐‐‐‐ < 0.00026 < 0.00027 < 0.00025 < 0.00022 < 0.00023 < 0.00024 ‐‐‐‐ < 0.00023 < 0.00024 < 0.00023 < 0.0003 < 0.00032 < 0.00033 ‐‐‐‐ < 0.00032 < 0.00033 < 0.00031 < 0.00043 < 0.00045 < 0.00045 ‐‐‐‐ < 0.00044 < 0.00046 < 0.00043 HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 23 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
VOCs (mg/kg) ‐
1,3,5‐Trimethylbenzene ‐‐‐
1,3‐Dichlorobenzene ‐‐‐
1,3‐Dichloropropane ‐ 2,200 ‐
1,4‐Dichloro‐2‐butene ‐‐‐
1,4‐Dichlorobenzene 0.23 ‐‐
2,2‐Dichloropropane ‐‐‐
2‐Butanone (Methyl Ethyl Ketone) ‐‐‐
2‐Chlorotoluene ‐ 2,500 ‐
2‐Hexanone ‐‐‐2‐Phenylbutane (sec‐Butylbenzene) ‐ 12,000 ‐ 4‐Chlorotoluene ‐ 2,300 ‐
4‐Methyl‐2‐Pentanone (Methyl Isobutyl Ketone) ‐‐‐
Acetone ‐‐‐Acrylonitrile ‐‐‐Allyl chloride ‐‐‐
Benzene 0.019 1.4 ‐Bromobenzene ‐‐‐Bromodichloromethane ‐ 1.3 ‐ Bromoform ‐ 86 ‐
Bromomethane (Methyl Bromide) ‐‐‐
Carbon disulfide ‐‐‐
Carbon tetrachloride ‐ 2.9 ‐
Chlorobenzene 2 ‐‐Chlorobromomethane ‐ 4.1 ‐
Chloroethane ‐‐‐Chloroform (Trichloromethane) ‐‐‐
Chloromethane (Methyl Chloride) ‐‐‐
cis‐1,2‐Dichloroethene 4.9 84 ‐
cis‐1,3‐Dichloropropene ‐‐‐
cis‐1,4‐Dichloro‐2‐butene ‐‐‐Cymene (p‐Isopropyltoluene) ‐ 1,600 ‐ Dibromochloromethane ‐‐‐Dibromomethane ‐‐‐Dichlorodifluoromethane (CFC‐12) ‐‐‐ Diisopropyl ether (DIPE) ‐‐‐
Ethylbenzene 7.7 ‐‐Hexachlorobutadiene ‐ 5.3 ‐
Isopropylbenzene (Cumene) ‐‐‐
m,p‐Xylenes 6 ‐‐
Methyl Tert Butyl Ether ‐‐‐
Methylene chloride 0.019 26 ‐
Naphthalene ‐ 6.5 ‐
n‐Butylbenzene ‐‐‐
B29‐06 B29‐07 B29‐07 B29‐07A B29‐07A B29‐07B B29‐07B B29‐08 B29‐08 B29‐09 B29‐06‐5 B29‐07‐1 B29‐07‐3 B29‐07A‐010 B29‐07A‐030 B29‐07B‐010 B29‐07B‐030 B29‐08‐1 B29‐08‐5 B29‐09‐1 6/29/2016 6/29/2016 6/29/2016 1/10/2020 1/10/2020 1/10/2020 1/10/2020 6/28/2016 6/28/2016 6/29/2016

4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) < 0.00053 < 0.00056 < 0.00057 ‐‐‐‐ < 0.00055 < 0.00058 < 0.00054 < 0.00017 < 0.00018 < 0.00018 ‐‐‐‐ < 0.00018 < 0.00018 < 0.00017 < 0.00025 < 0.00026 < 0.00026 ‐‐‐‐ < 0.00026 < 0.00026 < 0.00025 ‐‐‐‐‐‐‐‐‐‐
< 0.00022 < 0.00023 < 0.00023 ‐‐‐‐ < 0.00022 < 0.00023 < 0.00022 < 0.00032 < 0.00034 < 0.00034 ‐‐‐‐ < 0.00033 < 0.00035 < 0.00033 < 0.0037 < 0.0039 < 0.0039 ‐‐‐‐ < 0.0038 < 0.004 < 0.0037 < 0.00022 < 0.00024 < 0.00024 ‐‐‐‐ < 0.00023 < 0.00024 < 0.00023 < 0.0017 < 0.0018 < 0.0018 ‐‐‐‐ < 0.0018 < 0.0018 < 0.0017 < 0.00056 < 0.00059 < 0.0006 ‐‐‐‐ < 0.00058 < 0.00061 < 0.00057 < 0.00021 < 0.00022 < 0.00022 ‐‐‐‐ < 0.00022 < 0.00022 < 0.00021 < 0.0042 < 0.0044 < 0.0045 ‐‐‐‐ < 0.0044 < 0.0045 < 0.0043 < 0.0061 < 0.0064 < 0.0065 ‐‐‐‐ < 0.0063 < 0.0065 < 0.0062 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
< 0.00013 < 0.00013 < 0.00013 ‐‐‐‐ < 0.00013 < 0.00014 < 0.00013 < 0.0002 < 0.00021 < 0.00022 ‐‐‐‐ < 0.00021 < 0.00022 < 0.00021 < 0.00023 < 0.00024 < 0.00024 ‐‐‐‐ < 0.00024 < 0.00024 < 0.00023 < 0.00077 < 0.00081 < 0.00082 ‐‐‐‐ < 0.0008 < 0.00083 < 0.00079 < 0.0091 < 0.0096 < 0.0098 ‐‐‐‐ < 0.0095 < 0.0099 < 0.0093 < 0.0003 < 0.00031 < 0.00032 ‐‐‐‐ < 0.00031 < 0.00032 < 0.0003 < 0.00027 < 0.00029 < 0.00029 ‐‐‐‐ < 0.00029 < 0.0003 < 0.00028 < 0.00022 < 0.00023 < 0.00023 ‐‐‐‐ < 0.00023 < 0.00023 < 0.00022 < 0.00067 < 0.00071 < 0.00072 ‐‐‐‐ < 0.0007 < 0.00072 < 0.00068 < 0.0014 < 0.0015 < 0.0015 ‐‐‐‐ < 0.0015 < 0.0016 < 0.0015 < 0.00023 < 0.00024 < 0.00025 ‐‐‐‐ < 0.00024 < 0.00025 < 0.00024 < 0.0003 < 0.00031 < 0.00032 ‐‐‐‐ < 0.00031 < 0.00032 < 0.0003 < 0.00027 < 0.00029 < 0.00029 ‐‐‐‐ < 0.00028 < 0.00029 < 0.00028 < 0.00025 < 0.00026 < 0.00026 ‐‐‐‐ < 0.00026 < 0.00027 < 0.00025 ‐‐‐‐‐‐‐‐‐‐
< 0.00061 < 0.00064 < 0.00065 ‐‐‐‐ < 0.00064 < 0.00066 < 0.00062 < 0.00055 < 0.00058 < 0.00059 ‐‐‐‐ < 0.00058 < 0.0006 < 0.00057 < 0.00075 < 0.00079 < 0.0008 ‐‐‐‐ < 0.00078 < 0.00081 < 0.00077 < 0.00043 < 0.00045 < 0.00046 ‐‐‐‐ < 0.00045 < 0.00046 < 0.00044 ‐‐‐‐‐‐‐‐‐‐
< 0.00015 < 0.00015 < 0.00016 ‐‐‐‐ < 0.00015 < 0.00016 < 0.00015 ‐‐‐‐‐‐‐‐‐‐
< 0.00053 < 0.00056 < 0.00057 ‐‐‐‐ < 0.00055 < 0.00057 < 0.00054 < 0.00026 < 0.00027 < 0.00028 ‐‐‐‐ < 0.00027 < 0.00028 < 0.00027 < 0.00029 < 0.0003 < 0.00031 ‐‐‐‐ < 0.0003 < 0.00031 < 0.00029 < 0.0013 < 0.0014 < 0.0014 ‐‐‐‐ < 0.0014 < 0.0014 < 0.0013 < 0.00079 < 0.00083 < 0.00084 ‐‐‐‐ < 0.00082 < 0.00085 < 0.00081 < 0.00015 < 0.00016 < 0.00016 ‐‐‐‐ < 0.00016 < 0.00016 < 0.00016 HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 24 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
VOCs (mg/kg) ‐
n‐Propylbenzene ‐‐‐
o‐Xylene 6 ‐‐
PHC as Gasoline 5,400 97 ‐
Styrene ‐ 32,000 ‐
Tert‐Amyl Methyl Ether (TAME) ‐‐‐
Tert‐Butyl Alcohol (tert‐Butanol) ‐‐‐
Tert‐Butyl Ethyl Ether (ETBE) ‐‐‐tert‐Butylbenzene ‐‐‐
Tetrachloroethene 2.1 2.7 ‐
Toluene 0.44 5,300 ‐trans‐1,2‐Dichloroethene 0.17 600 ‐ trans‐1,3‐Dichloropropene ‐‐‐
Trichloroethene 27 63 2,040
Trichlorofluoromethane (CFC‐11) ‐ 5,400 ‐
Trifluorotrichloroethane (Freon 113) 6.4 ‐‐
Vinyl acetate ‐‐‐
Vinyl chloride 13 0.15 ‐
Xylene (total) 6 ‐‐
Notes and Abbreviations:

BOLD = concentration detected at or above
reported detection limit.

No COPC in soil exceeded its Total Threshold Limit Concentration (TTLC). < = analyte not detected above the indicated
reporting limit.B = compound detected in the associated blank J = estimated concentration.‐ = not analyzed or not applicable. mg/kg = milligrams per kilogram.
bgs = below ground surface.

GPL: Groundwater Protection Level (Haley & Aldrich 2014a, 2014b) TTLC: Total Threshold Limit Concentration, CCR Title 22 Section 66261.24 1 Cancer Endpoint. If there is no Cancer Endpoint, the Noncancer Endpoint is noted.2 Site background3 U.S. EPA Region 9 Remediation Screening Level DTSC‐SL: Commercial/Industrial Department of Toxic Substances Control‐Screening Level, HHRA Note 3, June 2020.

B29‐06 B29‐07 B29‐07 B29‐07A B29‐07A B29‐07B B29‐07B B29‐08 B29‐08 B29‐09 B29‐06‐5 B29‐07‐1 B29‐07‐3 B29‐07A‐010 B29‐07A‐030 B29‐07B‐010 B29‐07B‐030 B29‐08‐1 B29‐08‐5 B29‐09‐1 6/29/2016 6/29/2016 6/29/2016 1/10/2020 1/10/2020 1/10/2020 1/10/2020 6/28/2016 6/28/2016 6/29/2016

4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) < 0.00049 < 0.00051 < 0.00052 ‐‐‐‐ < 0.00051 < 0.00053 < 0.0005 < 0.00054 < 0.00057 < 0.00058 ‐‐‐‐ < 0.00056 < 0.00058 < 0.00055 ‐‐‐‐‐‐‐‐‐‐
< 0.00059 < 0.00062 < 0.00063 ‐‐‐‐ < 0.00061 < 0.00063 < 0.0006 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
< 0.00015 < 0.00015 < 0.00016 ‐‐‐‐ < 0.00015 < 0.00016 < 0.00015 < 0.0002 < 0.00021 < 0.00022 ‐‐‐‐ < 0.00021 < 0.00022 < 0.00021 < 0.0005 < 0.00053 < 0.00053 ‐‐‐‐ < 0.00052 < 0.00054 < 0.00051 < 0.00049 < 0.00052 < 0.00052 ‐‐‐‐ < 0.00051 < 0.00053 < 0.0005 < 0.00059 < 0.00062 < 0.00063 ‐‐‐‐ < 0.00061 < 0.00064 < 0.0006 < 0.00029 < 0.00031 < 0.00031 ‐‐‐‐ < 0.0003 < 0.00032 < 0.0003 < 0.00036 < 0.00038 < 0.00039 ‐‐‐‐ < 0.00038 < 0.00039 < 0.00037 < 0.00034 < 0.00036 < 0.00037 ‐‐‐‐ < 0.00036 < 0.00037 < 0.00035 < 0.0046 < 0.0049 < 0.0049 ‐‐‐‐ < 0.0048 < 0.005 < 0.0047 < 0.00049 < 0.00051 < 0.00052 ‐‐‐‐ < 0.00051 < 0.00053 < 0.0005 ‐‐‐‐‐‐‐‐‐‐
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 25 of 102 ends

LocationSample Name
Sample Date
Sample Depth
Metals (mg/kg) GPL DTSC TTLC
Antimony 7.84 ‐ 500
Arsenic 24.3 0.36/82 500
Barium 43000 ‐ 10,000
Beryllium ‐ 6,900 75
Cadmium 970 4,000 100Chromium 660 ‐ 2,500
Chromium VI (Hexavalent) 30 6.2 500
Cobalt ‐‐ 8,000
Copper 5600 ‐ 2,500
Lead 232 320 1,000Mercury 2.1 4.4 20Molybdenum ‐‐ 3,500 Nickel 3400 64,000 2,000Selenium ‐‐ 100Silver ‐‐ 500Thallium ‐‐ 700Vanadium ‐‐ 2,400 Zinc ‐‐ 5,000
‐
PCBs (mg/kg)
Aroclor‐1016 (PCB‐1016) ‐ 17 ‐
Aroclor‐1221 (PCB‐1221) ‐ 0.53 ‐
Aroclor‐1232 (PCB‐1232) ‐ 0.49 ‐
Aroclor‐1242 (PCB‐1242) ‐ 0.58 ‐
Aroclor‐1248 (PCB‐1248) ‐ 0.58 ‐
Aroclor‐1254 (PCB‐1254) ‐ 0.59 ‐
Aroclor‐1260 (PCB‐1260) ‐ 0.6 ‐
Aroclor‐1262 (PCB‐1262) ‐‐‐
Aroclor‐1268 (PCB‐1268) ‐‐‐
Total PCBs 130 0.58 50
‐
PEST (mg/kg)
4,4'‐DDD ‐ 6.2 1.0
4,4'‐DDE ‐ 9.3 1.04,4'‐DDT ‐ 7.1 1.0
Aldrin ‐ 0.18 1.4
alpha‐BHC ‐ 0.24 ‐
beta‐BHC ‐ 0.82 ‐
Chlordane ‐ 6.1 2.5
delta‐BHC ‐‐‐
Dieldrin ‐ 0.093 8.0
Endosulfan I ‐ 6,000 ‐
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
B29‐09 B29‐10 B29‐10 B29‐11 B29‐11 B29‐12 B29‐12 B29‐13 B29‐13 B29‐14 B29‐09‐5 B29‐10‐1 B29‐10‐5 B29‐11‐1 B29‐11‐5 B29‐12‐1 B29‐12‐5 B29‐13‐4 B29‐13‐5 B29‐14‐1.5 6/29/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016 6/29/2016

4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 3.5 ‐ 4 (ft) 4.5 ‐ 5 (ft) 1 ‐ 1.5 (ft) < 0.154 < 0.143 < 0.15 < 0.154 < 0.148 0.226 J < 0.145 < 0.154 < 0.154 < 0.147

1.27 5.81 2.25 2.12 4.59 1.45 1.75 3.85 3.16 1.2952.1 58.9 197 96.1 26.5 57.8 72 143 54.3 30.9

0.227 J 0.232 J 0.494 0.391 0.183 J 0.154 J 0.526 0.352 0.399 0.276

0.175 J 0.908 0.283 J 0.278 J 0.252 J 0.215 J 0.264 J 0.372 J 0.327 J 0.245 J

8.04 10.7 14.7 12.1 8.02 6.5 13.2 12.4 14.5 10

5.7 6.21 7.95 7.98 5.28 6.2 8.32 7.11 6.24 4.97

3.05 35.4 6.49 5.97 12.6 5.9 6.56 4.83 5.56 2.83.02 21.7 4.57 4.79 9.33 4.97 5.28 2.45 3.57 2.25 < 0.00559 0.0515 J 0.0114 J 0.00706 J 0.0115 J 0.0065 J 0.0181 J 0.0122 J 0.00769 J < 0.00559 < 0.137 0.275 < 0.133 < 0.137 < 0.131 0.201 J < 0.129 < 0.137 < 0.137 < 0.131

4.33 7.41 7.73 8.08 3.56 7.28 8.53 6.24 6.25 4.12

0.334 J < 0.287 < 0.301 < 0.31 0.4 J < 0.3 < 0.292 0.804 < 0.31 0.307 J < 0.0888 < 0.082 < 0.0861 < 0.0888 < 0.0853 < 0.0857 < 0.0836 < 0.0888 < 0.0888 < 0.0849

0.172 J < 0.145 0.409 J < 0.157 < 0.151 < 0.152 0.314 J 0.248 J < 0.157 < 0.15

26.7 26.9 39.3 35.6 20.2 29.7 34.9 39.1 41 39.413.7 53.1 28.9 24.1 16 24.5 28.1 20.3 23.8 27 < 0.021 < 0.021 < 0.021 < 0.021 < 0.021 < 0.021 < 0.021 < 0.021 < 0.021 < 0.021 < 0.042 < 0.042 < 0.042 < 0.042 < 0.042 < 0.042 < 0.042 < 0.042 < 0.042 < 0.042 < 0.025 < 0.025 < 0.025 < 0.025 < 0.025 < 0.025 < 0.025 < 0.025 < 0.025 < 0.025 < 0.037 < 0.037 < 0.037 < 0.037 < 0.037 < 0.037 < 0.037 < 0.037 < 0.037 < 0.037 < 0.032 < 0.032 < 0.032 < 0.032 < 0.032 < 0.032 < 0.032 < 0.032 < 0.032 < 0.032 < 0.032 < 0.031 < 0.032 < 0.031 < 0.032 < 0.031 < 0.032 < 0.032 < 0.032 < 0.031 < 0.03 < 0.03 < 0.03 < 0.03 < 0.03 < 0.03 < 0.03 < 0.03 < 0.03 < 0.03 < 0.035 < 0.034 < 0.035 < 0.034 < 0.035 < 0.034 < 0.035 < 0.035 < 0.035 < 0.034 < 0.033 < 0.033 < 0.033 < 0.033 < 0.033 < 0.033 < 0.033 < 0.033 < 0.033 < 0.033 < 0.042 < 0.042 < 0.042 < 0.042 < 0.042 < 0.042 < 0.042 < 0.042 < 0.042 < 0.042 ‐‐‐‐‐ < 0.0023 ‐ < 0.0024 ‐ < 0.0023
‐‐‐‐‐ < 0.0022 ‐ < 0.0022 ‐ < 0.0022
‐‐‐‐‐ < 0.0022 ‐ < 0.0022 ‐ < 0.0022
‐‐‐‐‐ < 0.0022 ‐ < 0.0022 ‐ < 0.0022
‐‐‐‐‐ < 0.0037 ‐ < 0.0037 ‐ < 0.0037
‐‐‐‐‐ < 0.0025 ‐ < 0.0025 ‐ < 0.0025
‐‐‐‐‐ < 0.026 ‐ < 0.026 ‐ < 0.026
‐‐‐‐‐ < 0.0044 ‐ < 0.0044 ‐ < 0.0044
‐‐‐‐‐ < 0.0022 ‐ < 0.0022 ‐ < 0.0022
‐‐‐‐‐ < 0.002 ‐ < 0.002 ‐ < 0.002
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 26 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
PEST (mg/kg) ‐
Endosulfan II ‐ 6,000 ‐
Endosulfan sulfate ‐ 11,000 ‐
Endrin ‐ 160 0.2
Endrin aldehyde ‐‐‐
Endrin ketone ‐‐‐
gamma‐BHC (Lindane) ‐ 2 4.0
Heptachlor ‐ 0.63 4.7
Heptachlor epoxide ‐ 0.33 ‐
Methoxychlor ‐ 2600 100
Toxaphene ‐ 1.2 5
‐
SVOCs (mg/kg)
1,2,4‐Trichlorobenzene 0.818 35 ‐
1,2‐Dichlorobenzene 28 ‐‐
1,3‐Dichlorobenzene ‐‐‐
1,4‐Dichlorobenzene 0.23 ‐‐
1‐Methylnaphthalene ‐ 30 ‐
2,2'‐oxybis(2‐Chloropropane) ‐‐‐
2,4,5‐Trichlorophenol ‐ 53,000 ‐
2,4,6‐Trichlorophenol ‐ 21 ‐
2,4‐Dichlorophenol ‐ 1,600 ‐
2,4‐Dimethylphenol ‐ 11,000 ‐
2,4‐Dinitrophenol ‐ 1,100 ‐
2,4‐Dinitrotoluene ‐‐‐
2,6‐Dichlorophenol ‐ 4.7 ‐
2,6‐Dinitrotoluene ‐ 0.99 ‐
2‐Chloronaphthalene ‐ 27,000 ‐
2‐Chlorophenol ‐ 3,900 ‐
2‐Methylnaphthalene ‐ 1,300 ‐
2‐Methylphenol (o‐Cresol) ‐ 26,000 ‐
2‐Nitroaniline ‐ 5,200 ‐
2‐Nitrophenol ‐‐‐3,3'‐Dichlorobenzidine ‐ 0.93 ‐
3‐Nitroaniline ‐‐‐
4,6‐Dinitro‐2‐methylphenol ‐ 42 ‐
4‐Bromophenyl phenyl ether ‐‐‐
4‐Chloro‐3‐methylphenol ‐ 53,000 ‐
4‐Chloroaniline ‐ 7.4 ‐
4‐Chlorophenyl phenyl ether ‐‐‐
4‐Nitroaniline ‐ 74 ‐
4‐Nitrophenol ‐‐‐
B29‐09 B29‐10 B29‐10 B29‐11 B29‐11 B29‐12 B29‐12 B29‐13 B29‐13 B29‐14 B29‐09‐5 B29‐10‐1 B29‐10‐5 B29‐11‐1 B29‐11‐5 B29‐12‐1 B29‐12‐5 B29‐13‐4 B29‐13‐5 B29‐14‐1.5 6/29/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016 6/29/2016

4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 3.5 ‐ 4 (ft) 4.5 ‐ 5 (ft) 1 ‐ 1.5 (ft) ‐‐‐‐‐ < 0.0023 ‐ < 0.0023 ‐ < 0.0023
‐‐‐‐‐ < 0.0026 ‐ < 0.0026 ‐ < 0.0026
‐‐‐‐‐ < 0.0023 ‐ < 0.0023 ‐ < 0.0023
‐‐‐‐‐ < 0.003 ‐ < 0.003 ‐ < 0.003
‐‐‐‐‐ < 0.0025 ‐ < 0.0025 ‐ < 0.0025
‐‐‐‐‐ < 0.0022 ‐ < 0.0022 ‐ < 0.0022‐‐‐‐‐ < 0.0021 ‐ < 0.0022 ‐ < 0.0021‐‐‐‐‐ < 0.0037 ‐ < 0.0037 ‐ < 0.0037 ‐‐‐‐‐ < 0.0027 ‐ < 0.0027 ‐ < 0.0027
‐‐‐‐‐ < 0.044 ‐ < 0.045 ‐ < 0.044
‐ < 0.29 ‐ < 0.059 ‐‐‐‐‐‐
‐ < 0.32 ‐ < 0.064 ‐‐‐‐‐‐
‐ < 0.36 ‐ < 0.073 ‐‐‐‐‐‐
‐ < 0.37 ‐ < 0.075 ‐‐‐‐‐‐
‐ < 0.28 ‐ < 0.056 ‐‐‐‐‐‐
‐ < 0.28 ‐ < 0.057 ‐‐‐‐‐‐
‐ < 0.31 ‐ < 0.063 ‐‐‐‐‐‐
‐ < 0.38 ‐ < 0.076 ‐‐‐‐‐‐
‐ < 0.29 ‐ < 0.058 ‐‐‐‐‐‐
‐ < 1.3 ‐ < 0.26 ‐‐‐‐‐‐
‐ < 1.7 ‐ < 0.34 ‐‐‐‐‐‐
‐ < 0.33 ‐ < 0.066 ‐‐‐‐‐‐
‐ < 0.46 ‐ < 0.093 ‐‐‐‐‐‐
‐ < 0.36 ‐ < 0.072 ‐‐‐‐‐‐
‐ < 0.29 ‐ < 0.059 ‐‐‐‐‐‐
‐ < 0.33 ‐ < 0.066 ‐‐‐‐‐‐
‐ < 0.3 ‐ < 0.06 ‐‐‐‐‐‐
‐ < 0.43 ‐ < 0.086 ‐‐‐‐‐‐
‐ < 0.26 ‐ < 0.052 ‐‐‐‐‐‐
‐ < 0.33 ‐ < 0.067 ‐‐‐‐‐‐
‐ < 1.8 ‐ < 0.36 ‐‐‐‐‐‐
‐ < 0.35 ‐ < 0.069 ‐‐‐‐‐‐
‐ < 3.1 ‐ < 0.63 ‐‐‐‐‐‐
‐ < 0.3 ‐ < 0.061 ‐‐‐‐‐‐
‐ < 0.33 ‐ < 0.066 ‐‐‐‐‐‐
‐ < 0.32 ‐ < 0.065 ‐‐‐‐‐‐
‐ < 0.32 ‐ < 0.064 ‐‐‐‐‐‐
‐ < 0.32 ‐ < 0.065 ‐‐‐‐‐‐
‐ < 0.27 ‐ < 0.054 ‐‐‐‐‐‐
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 27 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
SVOCs (mg/kg) ‐
Acenaphthene ‐ 23,000 ‐
Acenaphthylene ‐‐‐Aniline ‐ 260 ‐
Anthracene ‐ 130,000 ‐
Azobenzene ‐‐‐Benzidine ‐ 0.003 ‐
Benzo(a)anthracene ‐ 12 ‐
Benzo(a)pyrene 14 1.3 ‐Benzo(b)fluoranthene ‐ 13 ‐
Benzo(g,h,i)perylene ‐‐‐Benzo(k)fluoranthene ‐ 210,000 ‐ Benzoic acid ‐ 2,100,000 ‐
Benzyl Alcohol ‐ 53,000 ‐
bis(2‐Chloroethoxy)methane ‐ 1,600 ‐
bis(2‐Chloroethyl)ether ‐ 0.47 ‐
bis(2‐Ethylhexyl)phthalate 57 110 ‐
Butyl benzylphthalate ‐ 780 ‐
Chrysene ‐ 1,300 ‐
Dibenz(a,h)anthracene ‐ 0.31 ‐
Dibenzofuran ‐ 650 ‐
Diethyl phthalate ‐ 420,000 ‐Dimethyl phthalate ‐‐‐
Di‐n‐butylphthalate ‐ 53,000 ‐
Di‐n‐octyl phthalate ‐ 5,300 ‐Fluoranthene ‐ 18,000 ‐
Fluorene ‐ 17,000 ‐
Hexachlorobenzene ‐ 0.86 ‐
Hexachlorobutadiene ‐ 5.3 ‐
Hexachlorocyclopentadiene ‐‐‐Hexachloroethane ‐‐‐Indeno(1,2,3‐cd)pyrene ‐ 13 ‐ Isophorone ‐ 1,600 ‐
m,p‐Cresols ‐‐‐
Naphthalene ‐ 6.5 ‐
Nitrobenzene ‐‐‐N‐Nitrosodimethylamine ‐ 0.53 ‐
N‐Nitrosodi‐n‐propylamine ‐ 0.21 ‐
N‐Nitrosodiphenylamine ‐ 300 ‐
Pentachlorophenol 0.0717 2 ‐Phenanthrene ‐‐‐Phenol ‐ 160,000 ‐ Pyrene ‐ 13,000 ‐
Pyridine ‐ 530 ‐
B29‐09 B29‐10 B29‐10 B29‐11 B29‐11 B29‐12 B29‐12 B29‐13 B29‐13 B29‐14 B29‐09‐5 B29‐10‐1 B29‐10‐5 B29‐11‐1 B29‐11‐5 B29‐12‐1 B29‐12‐5 B29‐13‐4 B29‐13‐5 B29‐14‐1.5 6/29/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016 6/29/2016

4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 3.5 ‐ 4 (ft) 4.5 ‐ 5 (ft) 1 ‐ 1.5 (ft) ‐ < 0.31 ‐ < 0.063 ‐ < 0.004 ‐ < 0.004 ‐‐
‐ < 0.3 ‐ < 0.059 ‐ < 0.0042 ‐ < 0.0041 ‐‐
‐ < 0.3 ‐ < 0.059 ‐‐‐‐‐‐
‐ < 0.31 ‐ < 0.063 ‐ < 0.002 ‐ < 0.002 ‐‐
‐ < 0.27 ‐ < 0.054 ‐‐‐‐‐‐
‐ < 4.1 ‐ < 0.82 ‐‐‐‐‐‐
‐ < 0.28 ‐ < 0.057 ‐ < 0.0025 ‐ < 0.0024 ‐‐
‐ < 0.27 ‐ < 0.054 ‐ 0.048 ‐ < 0.002 ‐‐
‐ < 0.32 ‐ < 0.063 ‐ 0.071 ‐ < 0.0021 ‐‐
‐ < 0.27 ‐ < 0.055 ‐ 0.025 ‐ < 0.0018 ‐‐
‐ < 0.32 ‐ < 0.065 ‐ 0.065 ‐ < 0.0017 ‐‐
‐ < 2.5 ‐ < 0.49 ‐‐‐‐‐‐
‐ < 0.33 ‐ < 0.066 ‐‐‐‐‐‐
‐ < 0.28 ‐ < 0.056 ‐‐‐‐‐‐
‐ < 2 ‐ < 0.4 ‐‐‐‐‐‐
‐ < 0.26 ‐ < 0.053 ‐‐‐‐‐‐
‐ < 0.27 ‐ < 0.054 ‐‐‐‐‐‐
‐ < 0.32 ‐ < 0.064 ‐ < 0.0021 ‐ < 0.002 ‐‐
‐ < 0.23 ‐ < 0.046 ‐ 0.63 ‐ < 0.0029 ‐‐
‐ < 0.3 ‐ < 0.06 ‐‐‐‐‐‐
‐ < 0.29 ‐ < 0.058 ‐‐‐‐‐‐
‐ < 0.56 ‐ 0.25 J ‐‐‐‐‐‐
‐ < 0.3 ‐ < 0.06 ‐‐‐‐‐‐
‐ < 0.5 ‐ < 0.1 ‐‐‐‐‐‐
‐ < 0.31 ‐ < 0.062 ‐ < 0.0021 ‐ < 0.0021 ‐‐
‐ < 0.31 ‐ < 0.063 ‐ < 0.0017 ‐ < 0.0017 ‐‐
‐ < 0.33 ‐ < 0.066 ‐‐‐‐‐‐
‐ < 0.31 ‐ < 0.063 ‐‐‐‐‐‐
‐ < 2.5 ‐ < 0.5 ‐‐‐‐‐‐
‐ < 0.39 ‐ < 0.078 ‐‐‐‐‐‐
‐ < 0.26 ‐ < 0.053 ‐ 0.72 ‐ < 0.0022 ‐‐
‐ < 0.28 ‐ < 0.057 ‐‐‐‐‐‐
‐ < 0.81 ‐ < 0.16 ‐‐‐‐‐‐
‐ < 0.29 ‐ < 0.058 ‐ < 0.004 ‐ < 0.004 ‐‐
‐ < 1.6 ‐ < 0.32 ‐‐‐‐‐‐
‐ < 0.23 ‐ < 0.047 ‐‐‐‐‐‐
‐ < 0.41 ‐ < 0.083 ‐‐‐‐‐‐
‐ < 0.68 ‐ < 0.14 ‐‐‐‐‐‐
‐ < 1.9 ‐ < 0.38 ‐‐‐‐‐‐
‐ < 0.34 ‐ < 0.068 ‐ 0.0063 J ‐ < 0.0021 ‐‐
‐ < 0.24 ‐ < 0.048 ‐‐‐‐‐‐
‐ < 0.38 ‐ < 0.076 ‐ 0.017 ‐ < 0.0029 ‐‐
‐ < 0.27 ‐ < 0.054 ‐‐‐‐‐‐
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 28 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
TPH (mg/kg)
PHC as Gasoline 5,400 97 ‐
Total Petroleum Hydrocarbons (C6) ‐‐‐
Total Petroleum Hydrocarbons (C7) ‐‐‐
Total Petroleum Hydrocarbons (C8) ‐‐‐
Total Petroleum Hydrocarbons (C9‐C10) ‐‐‐
Total Petroleum Hydrocarbons (C11‐C12) ‐‐‐
Total Petroleum Hydrocarbons (C13‐C14) ‐‐‐
Total Petroleum Hydrocarbons (C15‐C16) ‐‐‐
Total Petroleum Hydrocarbons (C17‐C18) ‐‐‐
Total Petroleum Hydrocarbons (C19‐C20) ‐‐‐
Total Petroleum Hydrocarbons (C21‐C22) ‐‐‐
Total Petroleum Hydrocarbons (C23‐C24) ‐‐‐
Total Petroleum Hydrocarbons (C25‐C28) ‐‐‐
Total Petroleum Hydrocarbons (C29‐C32) ‐‐‐
Total Petroleum Hydrocarbons (C33‐C36) ‐‐‐
Total Petroleum Hydrocarbons (C37‐C40) ‐‐‐
Total Petroleum Hydrocarbons (C41‐C44) ‐‐‐
Total Petroleum Hydrocarbons (C6‐C44) ‐‐‐
Total Petroleum Hydrocarbons (C10‐C28) Diesel ‐‐‐
Total Petroleum Hydrocarbons (C10‐C28) DRO ‐‐‐
Total Petroleum Hydrocarbons (>C28‐C44) ‐‐‐
Gasoline C6‐C8 (calculated) 2,900 ‐‐
Diesel C9‐C16 (calculated) 5,400 97 ‐
Oil C17‐C32 (calculated) 7,300 2,400 ‐
‐
VOCs (mg/kg)
1,1,1,2‐Tetrachloroethane ‐ 8.8 ‐
1,1,1‐Trichloroethane 1.7 7,200 ‐
1,1,2,2‐Tetrachloroethane ‐ 2.7 ‐
1,1,2‐Trichloroethane 0.04 ‐‐
1,1‐Dichloroethane 0.56 16 ‐
1,1‐Dichloroethene 0.071 350 ‐
1,1‐Dichloropropene ‐‐‐
1,2,3‐Trichlorobenzene ‐ 300 ‐
1,2,3‐Trichloropropane ‐ 0.021 ‐
1,2,3‐Trimethylbenzene ‐‐‐
1,2,4‐Trichlorobenzene 0.818 35 ‐
1,2,4‐Trimethylbenzene ‐‐‐
1,2‐Dibromo‐3‐chloropropane (DBCP) ‐ 0.057 ‐
1,2‐Dibromoethane (Ethylene Dibromide) ‐ 0.16 ‐
1,2‐Dichlorobenzene 28 ‐‐
1,2‐Dichloroethane 0.0028 ‐‐
1,2‐Dichloropropane ‐‐‐
B29‐09 B29‐10 B29‐10 B29‐11 B29‐11 B29‐12 B29‐12 B29‐13 B29‐13 B29‐14 B29‐09‐5 B29‐10‐1 B29‐10‐5 B29‐11‐1 B29‐11‐5 B29‐12‐1 B29‐12‐5 B29‐13‐4 B29‐13‐5 B29‐14‐1.5 6/29/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016 6/29/2016

4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 3.5 ‐ 4 (ft) 4.5 ‐ 5 (ft) 1 ‐ 1.5 (ft) ‐‐‐‐‐‐‐‐‐‐
< 1.3 < 13 < 1.3 < 1.2 < 1.2 < 38 < 1.2 < 1.3 < 1.3 < 1.2 < 1.3 < 13 < 1.3 < 1.2 < 1.2 < 38 < 1.2 < 1.3 < 1.3 < 1.2 < 1.3 < 13 < 1.3 < 1.2 < 1.2 < 38 < 1.2 < 1.3 < 1.3 < 1.2 < 1.3 < 13 < 1.3 < 1.2 < 1.2 < 38 < 1.2 < 1.3 < 1.3 < 1.2 < 1.3 < 13 < 1.3 < 1.2 < 1.2 < 38 < 1.2 < 1.3 < 1.3 < 1.2 < 1.3 < 13 < 1.3 < 1.2 < 1.2 < 38 < 1.2 < 1.3 < 1.3 < 1.2 < 1.3 < 13 < 1.3 < 1.2 < 1.2 < 38 < 1.2 < 1.3 < 1.3 < 1.2 < 1.3 < 13 < 1.3 < 1.2 < 1.2 < 38 < 1.2 < 1.3 < 1.3 < 1.2 < 1.3 < 13 < 1.3 < 1.2 < 1.2 < 38 < 1.2 < 1.3 < 1.3 < 1.2 < 1.3 < 13 < 1.3 < 1.2 < 1.2 < 38 < 1.2 < 1.3 < 1.3 < 1.2 < 1.3 < 13 < 1.3 < 1.2 < 1.2 < 38 < 1.2 < 1.3 2 J < 1.2 < 1.3 < 13 < 1.3 1.6 J < 1.2 61 J < 1.2 < 1.3 3.7 J < 1.2 < 1.3 82 2.2 J 10 < 1.2 280 4.2 J < 1.3 3.5 J 6.7
< 1.3 86 2.8 J 10 < 1.2 260 3.9 J < 1.3 < 1.3 8.3
< 1.3 61 < 1.3 3.6 J < 1.2 120 J 2.5 J < 1.3 < 1.3 < 1.2 < 1.3 15 J < 1.3 < 1.2 < 1.2 < 38 < 1.2 < 1.3 < 1.3 < 1.2 < 1.3 240 5 26 < 1.3 720 11 < 1.3 9.2 15
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
< 1.3 < 13 < 1.3 < 1.2 < 1.2 < 38 < 1.2 < 1.3 < 1.3 < 1.2 < 1.3 < 13 < 1.3 < 1.2 < 1.2 < 38 < 1.2 < 1.3 < 1.3 < 1.2 < 1.3 82 2.2 11.6 < 1.2 341 4.2 < 1.3 9.2 6.7
< 0.00024 < 0.00025 < 0.00024 < 0.00024 < 0.00025 < 0.00025 < 0.00024 < 0.00025 < 0.00025 < 0.00024 < 0.00022 < 0.00023 < 0.00023 < 0.00022 < 0.00023 < 0.00023 < 0.00022 < 0.00023 < 0.00023 < 0.00023 < 0.00034 < 0.00036 < 0.00035 < 0.00034 < 0.00036 < 0.00036 < 0.00035 < 0.00036 < 0.00036 < 0.00035 < 0.00035 < 0.00037 < 0.00036 < 0.00035 < 0.00037 < 0.00037 < 0.00035 < 0.00036 < 0.00037 < 0.00036 < 0.00021 < 0.00022 < 0.00021 < 0.00021 < 0.00022 < 0.00022 < 0.00021 < 0.00022 < 0.00022 < 0.00021 < 0.00034 < 0.00036 < 0.00035 < 0.00034 < 0.00036 < 0.00036 < 0.00035 < 0.00036 < 0.00036 < 0.00035 < 0.00033 < 0.00034 < 0.00033 < 0.00032 < 0.00034 < 0.00034 < 0.00033 < 0.00034 < 0.00034 < 0.00033 < 0.00091 < 0.00095 < 0.00092 < 0.0009 < 0.00095 < 0.00095 < 0.00091 < 0.00094 < 0.00095 < 0.00093 < 0.00082 < 0.00086 < 0.00084 < 0.00082 < 0.00086 < 0.00086 < 0.00083 < 0.00085 < 0.00086 < 0.00084 ‐‐‐‐‐‐‐‐‐‐
< 0.00031 < 0.00032 < 0.00031 < 0.00031 < 0.00032 < 0.00032 < 0.00031 < 0.00032 < 0.00032 < 0.00031 < 0.00058 < 0.00061 < 0.00059 < 0.00058 < 0.00061 < 0.00061 < 0.00059 < 0.0006 < 0.00061 < 0.00059 < 0.0017 < 0.0018 < 0.0017 < 0.0017 < 0.0018 < 0.0018 < 0.0017 < 0.0018 < 0.0018 < 0.0018 < 0.00025 < 0.00026 < 0.00026 < 0.00025 < 0.00026 < 0.00026 < 0.00025 < 0.00026 < 0.00027 < 0.00026 < 0.00023 < 0.00024 < 0.00023 < 0.00023 < 0.00024 < 0.00024 < 0.00023 < 0.00024 < 0.00024 < 0.00023 < 0.00031 < 0.00033 < 0.00032 < 0.00031 < 0.00033 < 0.00033 < 0.00031 < 0.00032 < 0.00033 < 0.00032 < 0.00043 < 0.00045 < 0.00044 < 0.00043 < 0.00045 < 0.00045 < 0.00044 < 0.00045 < 0.00046 < 0.00044 HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 29 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
VOCs (mg/kg) ‐
1,3,5‐Trimethylbenzene ‐‐‐
1,3‐Dichlorobenzene ‐‐‐
1,3‐Dichloropropane ‐ 2,200 ‐
1,4‐Dichloro‐2‐butene ‐‐‐
1,4‐Dichlorobenzene 0.23 ‐‐
2,2‐Dichloropropane ‐‐‐
2‐Butanone (Methyl Ethyl Ketone) ‐‐‐
2‐Chlorotoluene ‐ 2,500 ‐
2‐Hexanone ‐‐‐2‐Phenylbutane (sec‐Butylbenzene) ‐ 12,000 ‐ 4‐Chlorotoluene ‐ 2,300 ‐
4‐Methyl‐2‐Pentanone (Methyl Isobutyl Ketone) ‐‐‐
Acetone ‐‐‐Acrylonitrile ‐‐‐Allyl chloride ‐‐‐
Benzene 0.019 1.4 ‐Bromobenzene ‐‐‐Bromodichloromethane ‐ 1.3 ‐ Bromoform ‐ 86 ‐
Bromomethane (Methyl Bromide) ‐‐‐
Carbon disulfide ‐‐‐
Carbon tetrachloride ‐ 2.9 ‐
Chlorobenzene 2 ‐‐Chlorobromomethane ‐ 4.1 ‐
Chloroethane ‐‐‐Chloroform (Trichloromethane) ‐‐‐
Chloromethane (Methyl Chloride) ‐‐‐
cis‐1,2‐Dichloroethene 4.9 84 ‐
cis‐1,3‐Dichloropropene ‐‐‐
cis‐1,4‐Dichloro‐2‐butene ‐‐‐Cymene (p‐Isopropyltoluene) ‐ 1,600 ‐ Dibromochloromethane ‐‐‐Dibromomethane ‐‐‐Dichlorodifluoromethane (CFC‐12) ‐‐‐ Diisopropyl ether (DIPE) ‐‐‐
Ethylbenzene 7.7 ‐‐Hexachlorobutadiene ‐ 5.3 ‐
Isopropylbenzene (Cumene) ‐‐‐
m,p‐Xylenes 6 ‐‐
Methyl Tert Butyl Ether ‐‐‐
Methylene chloride 0.019 26 ‐
Naphthalene ‐ 6.5 ‐
n‐Butylbenzene ‐‐‐
B29‐09 B29‐10 B29‐10 B29‐11 B29‐11 B29‐12 B29‐12 B29‐13 B29‐13 B29‐14 B29‐09‐5 B29‐10‐1 B29‐10‐5 B29‐11‐1 B29‐11‐5 B29‐12‐1 B29‐12‐5 B29‐13‐4 B29‐13‐5 B29‐14‐1.5 6/29/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016 6/29/2016

4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 3.5 ‐ 4 (ft) 4.5 ‐ 5 (ft) 1 ‐ 1.5 (ft) < 0.00054 < 0.00057 < 0.00055 < 0.00054 < 0.00057 < 0.00057 < 0.00055 < 0.00056 < 0.00057 < 0.00056 < 0.00017 < 0.00018 < 0.00018 < 0.00017 < 0.00018 < 0.00018 < 0.00018 < 0.00018 < 0.00018 < 0.00018 < 0.00025 < 0.00026 < 0.00025 < 0.00025 < 0.00026 < 0.00026 < 0.00025 < 0.00026 < 0.00026 < 0.00026 ‐‐‐‐‐‐‐‐‐‐
< 0.00022 < 0.00023 < 0.00022 < 0.00022 < 0.00023 < 0.00023 < 0.00022 < 0.00023 < 0.00023 < 0.00023 < 0.00033 < 0.00034 < 0.00033 < 0.00033 < 0.00034 < 0.00034 < 0.00033 < 0.00034 < 0.00034 < 0.00034 < 0.0037 < 0.0039 < 0.0038 < 0.0037 < 0.0039 < 0.0039 < 0.0038 < 0.0039 < 0.0039 < 0.0038 < 0.00023 < 0.00024 < 0.00023 < 0.00023 < 0.00024 < 0.00024 < 0.00023 < 0.00024 < 0.00024 < 0.00023 < 0.0017 < 0.0018 < 0.0018 < 0.0017 < 0.0018 < 0.0018 < 0.0018 < 0.0018 < 0.0018 < 0.0018 < 0.00057 < 0.0006 < 0.00058 < 0.00057 < 0.0006 < 0.0006 < 0.00058 < 0.00059 < 0.0006 < 0.00059 < 0.00021 < 0.00022 < 0.00021 < 0.00021 < 0.00022 < 0.00022 < 0.00021 < 0.00022 < 0.00022 < 0.00022 < 0.0043 < 0.0045 < 0.0043 < 0.0043 < 0.0045 < 0.0045 < 0.0043 < 0.0044 < 0.0045 < 0.0044 < 0.0062 < 0.0065 < 0.0063 < 0.0062 < 0.0065 < 0.0065 < 0.0062 < 0.0064 < 0.0065 0.012 J ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
< 0.00013 < 0.00013 < 0.00013 < 0.00013 < 0.00013 < 0.00013 < 0.00013 < 0.00013 < 0.00013 < 0.00013 < 0.00021 < 0.00022 < 0.00021 < 0.00021 < 0.00022 < 0.00022 < 0.00021 < 0.00022 < 0.00022 < 0.00021 < 0.00023 < 0.00024 < 0.00023 < 0.00023 < 0.00024 < 0.00024 < 0.00023 < 0.00024 < 0.00024 < 0.00024 < 0.00079 < 0.00082 < 0.0008 < 0.00078 < 0.00082 < 0.00082 < 0.00079 < 0.00082 < 0.00083 < 0.00081 < 0.0093 < 0.0098 < 0.0095 < 0.0093 < 0.0098 < 0.0098 < 0.0094 < 0.0097 < 0.0098 < 0.0096 < 0.0003 < 0.00032 < 0.00031 < 0.0003 < 0.00032 < 0.00032 < 0.00031 < 0.00031 < 0.00032 < 0.00031 < 0.00028 < 0.00029 < 0.00028 < 0.00028 < 0.00029 < 0.00029 < 0.00028 < 0.00029 < 0.00029 < 0.00029 < 0.00022 < 0.00023 < 0.00023 < 0.00022 < 0.00023 < 0.00023 < 0.00022 < 0.00023 < 0.00023 < 0.00023 < 0.00068 < 0.00072 < 0.00069 < 0.00068 < 0.00071 < 0.00071 < 0.00069 < 0.00071 < 0.00072 < 0.0007 < 0.0015 < 0.0015 < 0.0015 < 0.0015 < 0.0015 < 0.0015 < 0.0015 < 0.0015 < 0.0016 < 0.0015 < 0.00024 < 0.00025 < 0.00024 < 0.00024 < 0.00025 < 0.00025 < 0.00024 < 0.00025 < 0.00025 < 0.00024 < 0.0003 < 0.00032 < 0.00031 < 0.0003 < 0.00031 < 0.00031 < 0.0003 < 0.00031 < 0.00032 < 0.00031 < 0.00028 < 0.00029 < 0.00028 < 0.00028 < 0.00029 < 0.00029 < 0.00028 < 0.00029 < 0.00029 0.00032 J < 0.00025 < 0.00026 < 0.00026 < 0.00025 < 0.00026 < 0.00026 < 0.00025 < 0.00026 < 0.00026 < 0.00026 ‐‐‐‐‐‐‐‐‐‐
< 0.00062 < 0.00065 < 0.00063 < 0.00062 < 0.00065 < 0.00065 < 0.00063 < 0.00065 < 0.00065 < 0.00064 < 0.00057 < 0.00059 < 0.00057 < 0.00056 < 0.00059 < 0.00059 < 0.00057 < 0.00059 < 0.00059 < 0.00058 < 0.00077 < 0.0008 < 0.00078 < 0.00077 < 0.0008 < 0.0008 < 0.00077 < 0.0008 < 0.00081 < 0.00079 < 0.00044 < 0.00046 < 0.00045 < 0.00044 < 0.00046 < 0.00046 < 0.00044 < 0.00046 < 0.00046 < 0.00045 ‐‐‐‐‐‐‐‐‐‐
< 0.00015 < 0.00016 < 0.00015 < 0.00015 < 0.00016 < 0.00016 < 0.00015 < 0.00016 < 0.00016 < 0.00015 ‐‐‐‐‐‐‐‐‐‐
< 0.00054 < 0.00057 < 0.00055 < 0.00054 < 0.00057 < 0.00057 < 0.00055 < 0.00056 < 0.00057 < 0.00055 < 0.00027 < 0.00028 < 0.00027 < 0.00026 < 0.00028 < 0.00028 < 0.00027 < 0.00028 < 0.00028 < 0.00027 < 0.00029 < 0.00031 < 0.0003 < 0.00029 < 0.00031 < 0.00031 < 0.00029 < 0.0003 < 0.00031 < 0.0003 < 0.0013 < 0.0014 < 0.0013 < 0.0013 < 0.0014 < 0.0014 < 0.0013 < 0.0014 < 0.0014 < 0.0014 < 0.00081 < 0.00084 < 0.00082 < 0.0008 < 0.00084 < 0.00084 < 0.00081 < 0.00084 < 0.00085 < 0.00083 < 0.00016 < 0.00016 < 0.00016 < 0.00015 < 0.00016 < 0.00016 < 0.00016 < 0.00016 < 0.00016 < 0.00016 HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 30 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
VOCs (mg/kg) ‐
n‐Propylbenzene ‐‐‐
o‐Xylene 6 ‐‐
PHC as Gasoline 5,400 97 ‐
Styrene ‐ 32,000 ‐
Tert‐Amyl Methyl Ether (TAME) ‐‐‐
Tert‐Butyl Alcohol (tert‐Butanol) ‐‐‐
Tert‐Butyl Ethyl Ether (ETBE) ‐‐‐tert‐Butylbenzene ‐‐‐
Tetrachloroethene 2.1 2.7 ‐
Toluene 0.44 5,300 ‐trans‐1,2‐Dichloroethene 0.17 600 ‐ trans‐1,3‐Dichloropropene ‐‐‐
Trichloroethene 27 63 2,040
Trichlorofluoromethane (CFC‐11) ‐ 5,400 ‐
Trifluorotrichloroethane (Freon 113) 6.4 ‐‐
Vinyl acetate ‐‐‐
Vinyl chloride 13 0.15 ‐
Xylene (total) 6 ‐‐
Notes and Abbreviations:

BOLD = concentration detected at or above
reported detection limit.

No COPC in soil exceeded its Total Threshold Limit Concentration (TTLC). < = analyte not detected above the indicated
reporting limit.B = compound detected in the associated blank J = estimated concentration.‐ = not analyzed or not applicable. mg/kg = milligrams per kilogram.
bgs = below ground surface.

GPL: Groundwater Protection Level (Haley & Aldrich 2014a, 2014b) TTLC: Total Threshold Limit Concentration, CCR Title 22 Section 66261.24 1 Cancer Endpoint. If there is no Cancer Endpoint, the Noncancer Endpoint is noted.2 Site background3 U.S. EPA Region 9 Remediation Screening Level DTSC‐SL: Commercial/Industrial Department of Toxic Substances Control‐Screening Level, HHRA Note 3, June 2020.

B29‐09 B29‐10 B29‐10 B29‐11 B29‐11 B29‐12 B29‐12 B29‐13 B29‐13 B29‐14 B29‐09‐5 B29‐10‐1 B29‐10‐5 B29‐11‐1 B29‐11‐5 B29‐12‐1 B29‐12‐5 B29‐13‐4 B29‐13‐5 B29‐14‐1.5 6/29/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016 6/29/2016

4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 3.5 ‐ 4 (ft) 4.5 ‐ 5 (ft) 1 ‐ 1.5 (ft) < 0.0005 < 0.00052 < 0.0005 < 0.0005 < 0.00052 < 0.00052 < 0.0005 < 0.00052 < 0.00052 < 0.00051 < 0.00055 < 0.00058 < 0.00056 < 0.00055 < 0.00058 < 0.00058 < 0.00056 < 0.00057 < 0.00058 < 0.00056 ‐‐‐‐‐‐‐‐‐‐
< 0.0006 < 0.00063 < 0.00061 < 0.0006 < 0.00063 < 0.00063 < 0.0006 < 0.00062 < 0.00063 < 0.00061 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
< 0.00015 < 0.00016 < 0.00015 < 0.00015 < 0.00016 < 0.00016 < 0.00015 < 0.00016 < 0.00016 < 0.00015 < 0.00021 < 0.00022 < 0.00021 < 0.00021 < 0.00022 < 0.00022 < 0.00021 < 0.00022 < 0.00022 < 0.00021 < 0.00051 < 0.00053 < 0.00052 < 0.00051 < 0.00053 < 0.00053 < 0.00051 < 0.00053 < 0.00054 < 0.00052 < 0.0005 < 0.00052 < 0.00051 < 0.0005 < 0.00052 < 0.00052 < 0.0005 < 0.00052 < 0.00053 < 0.00051 < 0.0006 < 0.00063 < 0.00061 < 0.0006 < 0.00063 < 0.00063 < 0.0006 < 0.00062 < 0.00063 < 0.00061 < 0.0003 < 0.00031 < 0.0003 < 0.0003 < 0.00031 < 0.00031 < 0.0003 < 0.00031 < 0.00031 0.0042 J < 0.00037 < 0.00039 < 0.00038 < 0.00037 < 0.00039 < 0.00039 < 0.00037 < 0.00039 < 0.00039 < 0.00038 < 0.00035 < 0.00037 < 0.00035 < 0.00035 < 0.00036 < 0.00036 < 0.00035 < 0.00036 < 0.00037 < 0.00036 < 0.0047 < 0.0049 < 0.0048 < 0.0047 < 0.0049 < 0.0049 < 0.0047 < 0.0049 < 0.0049 < 0.0048 < 0.0005 < 0.00052 < 0.00051 < 0.0005 < 0.00052 < 0.00052 < 0.0005 < 0.00052 < 0.00052 < 0.00051 ‐‐‐‐‐‐‐‐‐‐
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 31 of 102 ends

LocationSample Name
Sample Date
Sample Depth
Metals (mg/kg) GPL DTSC TTLC
Antimony 7.84 ‐ 500
Arsenic 24.3 0.36/82 500
Barium 43000 ‐ 10,000
Beryllium ‐ 6,900 75
Cadmium 970 4,000 100Chromium 660 ‐ 2,500
Chromium VI (Hexavalent) 30 6.2 500
Cobalt ‐‐ 8,000
Copper 5600 ‐ 2,500
Lead 232 320 1,000Mercury 2.1 4.4 20Molybdenum ‐‐ 3,500 Nickel 3400 64,000 2,000Selenium ‐‐ 100Silver ‐‐ 500Thallium ‐‐ 700Vanadium ‐‐ 2,400 Zinc ‐‐ 5,000
‐
PCBs (mg/kg)
Aroclor‐1016 (PCB‐1016) ‐ 17 ‐
Aroclor‐1221 (PCB‐1221) ‐ 0.53 ‐
Aroclor‐1232 (PCB‐1232) ‐ 0.49 ‐
Aroclor‐1242 (PCB‐1242) ‐ 0.58 ‐
Aroclor‐1248 (PCB‐1248) ‐ 0.58 ‐
Aroclor‐1254 (PCB‐1254) ‐ 0.59 ‐
Aroclor‐1260 (PCB‐1260) ‐ 0.6 ‐
Aroclor‐1262 (PCB‐1262) ‐‐‐
Aroclor‐1268 (PCB‐1268) ‐‐‐
Total PCBs 130 0.58 50
‐
PEST (mg/kg)
4,4'‐DDD ‐ 6.2 1.0
4,4'‐DDE ‐ 9.3 1.04,4'‐DDT ‐ 7.1 1.0
Aldrin ‐ 0.18 1.4
alpha‐BHC ‐ 0.24 ‐
beta‐BHC ‐ 0.82 ‐
Chlordane ‐ 6.1 2.5
delta‐BHC ‐‐‐
Dieldrin ‐ 0.093 8.0
Endosulfan I ‐ 6,000 ‐
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
B29‐14 B29‐15 B29‐15 B29‐16 B29‐16 B29‐17 B29‐17 B29‐18 B29‐18 B29‐19 B29‐14‐3 B29‐15‐1 B29‐15‐3 B29‐16‐1 B29‐16‐3 B29‐17‐1 B29‐17‐3 B29‐18‐1.5 B29‐18‐3 B29‐19‐2 6/29/2016 6/29/2016 6/29/2016 6/28/2016 6/28/2016 6/29/2016 6/29/2016 6/29/2016 6/29/2016 6/29/2016

2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 1 ‐ 1.5 (ft) 2.5 ‐ 3 (ft) 1.5 ‐ 2 (ft)

0.294 J < 0.148 < 0.146 < 0.152 < 0.144 < 0.148 < 0.147 < 0.143 0.221 J 0.352 J

2.31 5.18 2.39 2.73 1.25 2.96 2.58 1.5 1.56 2.0934.4 18.4 43.9 56 36.8 55.1 43.5 32.6 35.8 26.8

0.564 < 0.136 0.523 0.253 J 0.161 J 0.242 J 0.627 0.273 0.501 0.6

0.285 J 0.356 J 0.263 J 0.3 J 0.172 J 0.275 J 0.336 J 0.215 J 0.239 J 0.283 J 16 5.92 15.9 11.4 7.17 10.2 15.3 9.26 12.6 14.2

6.94 18 8.14 5.79 3.94 5.02 9.08 6.41 8.37 6.45.78 9.26 42.1 4.62 4.76 5.37 5.74 6.02 5.38 5.435.48 1.87 4.84 2.53 1.98 5.65 5.95 6.95 5.78 5.29

0.00897 J 0.00562 J 0.0161 J < 0.00597 < 0.00597 0.00586 J 0.0177 J 0.0168 J 0.02 J 0.0233 J < 0.13 < 0.131 < 0.129 < 0.135 < 0.128 < 0.131 < 0.13 < 0.127 < 0.128 < 0.131

8.93 3.02 9.46 4.54 2.94 4.03 9.63 7.75 7.58 8.09
< 0.295 0.885 < 0.294 < 0.306 < 0.289 < 0.298 0.389 J < 0.288 < 0.291 < 0.297 < 0.0844 0.414 < 0.084 < 0.0875 < 0.0828 < 0.0853 < 0.0844 < 0.0824 < 0.0832 < 0.0849 < 0.149 0.285 J 0.358 J 0.243 J < 0.147 < 0.151 0.39 J < 0.146 0.21 J < 0.15

37.5 21.9 40.9 37.8 25.9 33.7 36.4 24.5 34.4 35.8
29 36.5 34.5 29.3 14.2 27.7 27.3 17.8 23.6 28.6
< 0.021 < 0.021 < 0.021 < 0.021 < 0.021 < 0.021 < 0.021 < 0.021 < 0.021 < 0.021 < 0.042 < 0.042 < 0.043 < 0.042 < 0.043 < 0.042 < 0.042 < 0.042 < 0.042 < 0.042 < 0.025 < 0.025 < 0.025 < 0.025 < 0.025 < 0.025 < 0.025 < 0.025 < 0.025 < 0.025 < 0.037 < 0.037 < 0.037 < 0.037 < 0.038 < 0.037 < 0.037 < 0.037 < 0.037 < 0.037 < 0.032 < 0.032 < 0.032 < 0.032 < 0.032 < 0.032 < 0.032 < 0.032 < 0.032 < 0.032 < 0.032 < 0.032 < 0.032 < 0.032 < 0.032 < 0.031 < 0.032 < 0.032 < 0.031 < 0.032 < 0.03 < 0.03 < 0.031 < 0.03 < 0.031 < 0.03 < 0.03 < 0.03 < 0.03 < 0.03 < 0.035 < 0.035 < 0.035 < 0.035 < 0.035 < 0.034 < 0.035 < 0.035 < 0.034 < 0.035 < 0.033 < 0.033 < 0.034 < 0.033 < 0.034 < 0.033 < 0.033 < 0.033 < 0.033 < 0.033 < 0.042 < 0.042 < 0.043 < 0.042 < 0.043 < 0.042 < 0.042 < 0.042 < 0.042 < 0.042 ‐‐‐‐‐‐‐ < 0.0024 ‐ < 0.0024
‐‐‐‐‐‐‐ < 0.0022 ‐ < 0.0022
‐‐‐‐‐‐‐ < 0.0022 ‐ < 0.0022
‐‐‐‐‐‐‐ < 0.0022 ‐ < 0.0022
‐‐‐‐‐‐‐ < 0.0037 ‐ < 0.0037
‐‐‐‐‐‐‐ < 0.0025 ‐ < 0.0025
‐‐‐‐‐‐‐ < 0.026 ‐ < 0.026
‐‐‐‐‐‐‐ < 0.0044 ‐ < 0.0044
‐‐‐‐‐‐‐ < 0.0022 ‐ < 0.0022
‐‐‐‐‐‐‐ < 0.002 ‐ < 0.002
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 32 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
PEST (mg/kg) ‐
Endosulfan II ‐ 6,000 ‐
Endosulfan sulfate ‐ 11,000 ‐
Endrin ‐ 160 0.2
Endrin aldehyde ‐‐‐
Endrin ketone ‐‐‐
gamma‐BHC (Lindane) ‐ 2 4.0
Heptachlor ‐ 0.63 4.7
Heptachlor epoxide ‐ 0.33 ‐
Methoxychlor ‐ 2600 100
Toxaphene ‐ 1.2 5
‐
SVOCs (mg/kg)
1,2,4‐Trichlorobenzene 0.818 35 ‐
1,2‐Dichlorobenzene 28 ‐‐
1,3‐Dichlorobenzene ‐‐‐
1,4‐Dichlorobenzene 0.23 ‐‐
1‐Methylnaphthalene ‐ 30 ‐
2,2'‐oxybis(2‐Chloropropane) ‐‐‐
2,4,5‐Trichlorophenol ‐ 53,000 ‐
2,4,6‐Trichlorophenol ‐ 21 ‐
2,4‐Dichlorophenol ‐ 1,600 ‐
2,4‐Dimethylphenol ‐ 11,000 ‐
2,4‐Dinitrophenol ‐ 1,100 ‐
2,4‐Dinitrotoluene ‐‐‐
2,6‐Dichlorophenol ‐ 4.7 ‐
2,6‐Dinitrotoluene ‐ 0.99 ‐
2‐Chloronaphthalene ‐ 27,000 ‐
2‐Chlorophenol ‐ 3,900 ‐
2‐Methylnaphthalene ‐ 1,300 ‐
2‐Methylphenol (o‐Cresol) ‐ 26,000 ‐
2‐Nitroaniline ‐ 5,200 ‐
2‐Nitrophenol ‐‐‐3,3'‐Dichlorobenzidine ‐ 0.93 ‐
3‐Nitroaniline ‐‐‐
4,6‐Dinitro‐2‐methylphenol ‐ 42 ‐
4‐Bromophenyl phenyl ether ‐‐‐
4‐Chloro‐3‐methylphenol ‐ 53,000 ‐
4‐Chloroaniline ‐ 7.4 ‐
4‐Chlorophenyl phenyl ether ‐‐‐
4‐Nitroaniline ‐ 74 ‐
4‐Nitrophenol ‐‐‐
B29‐14 B29‐15 B29‐15 B29‐16 B29‐16 B29‐17 B29‐17 B29‐18 B29‐18 B29‐19 B29‐14‐3 B29‐15‐1 B29‐15‐3 B29‐16‐1 B29‐16‐3 B29‐17‐1 B29‐17‐3 B29‐18‐1.5 B29‐18‐3 B29‐19‐2 6/29/2016 6/29/2016 6/29/2016 6/28/2016 6/28/2016 6/29/2016 6/29/2016 6/29/2016 6/29/2016 6/29/2016

2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 1 ‐ 1.5 (ft) 2.5 ‐ 3 (ft) 1.5 ‐ 2 (ft) ‐‐‐‐‐‐‐ < 0.0024 ‐ < 0.0023
‐‐‐‐‐‐‐ < 0.0026 ‐ < 0.0026
‐‐‐‐‐‐‐ < 0.0024 ‐ < 0.0023
‐‐‐‐‐‐‐ < 0.003 ‐ < 0.003
‐‐‐‐‐‐‐ < 0.0025 ‐ < 0.0025
‐‐‐‐‐‐‐ < 0.0022 ‐ < 0.0022
‐‐‐‐‐‐‐ < 0.0022 ‐ < 0.0022
‐‐‐‐‐‐‐ < 0.0037 ‐ < 0.0037
‐‐‐‐‐‐‐ < 0.0027 ‐ < 0.0027
‐‐‐‐‐‐‐ < 0.045 ‐ < 0.045
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 33 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
SVOCs (mg/kg) ‐
Acenaphthene ‐ 23,000 ‐
Acenaphthylene ‐‐‐Aniline ‐ 260 ‐
Anthracene ‐ 130,000 ‐
Azobenzene ‐‐‐Benzidine ‐ 0.003 ‐
Benzo(a)anthracene ‐ 12 ‐
Benzo(a)pyrene 14 1.3 ‐Benzo(b)fluoranthene ‐ 13 ‐
Benzo(g,h,i)perylene ‐‐‐Benzo(k)fluoranthene ‐ 210,000 ‐ Benzoic acid ‐ 2,100,000 ‐
Benzyl Alcohol ‐ 53,000 ‐
bis(2‐Chloroethoxy)methane ‐ 1,600 ‐
bis(2‐Chloroethyl)ether ‐ 0.47 ‐
bis(2‐Ethylhexyl)phthalate 57 110 ‐
Butyl benzylphthalate ‐ 780 ‐
Chrysene ‐ 1,300 ‐
Dibenz(a,h)anthracene ‐ 0.31 ‐
Dibenzofuran ‐ 650 ‐
Diethyl phthalate ‐ 420,000 ‐Dimethyl phthalate ‐‐‐
Di‐n‐butylphthalate ‐ 53,000 ‐
Di‐n‐octyl phthalate ‐ 5,300 ‐Fluoranthene ‐ 18,000 ‐
Fluorene ‐ 17,000 ‐
Hexachlorobenzene ‐ 0.86 ‐
Hexachlorobutadiene ‐ 5.3 ‐
Hexachlorocyclopentadiene ‐‐‐Hexachloroethane ‐‐‐Indeno(1,2,3‐cd)pyrene ‐ 13 ‐ Isophorone ‐ 1,600 ‐
m,p‐Cresols ‐‐‐
Naphthalene ‐ 6.5 ‐
Nitrobenzene ‐‐‐N‐Nitrosodimethylamine ‐ 0.53 ‐
N‐Nitrosodi‐n‐propylamine ‐ 0.21 ‐
N‐Nitrosodiphenylamine ‐ 300 ‐
Pentachlorophenol 0.0717 2 ‐Phenanthrene ‐‐‐Phenol ‐ 160,000 ‐ Pyrene ‐ 13,000 ‐
Pyridine ‐ 530 ‐
B29‐14 B29‐15 B29‐15 B29‐16 B29‐16 B29‐17 B29‐17 B29‐18 B29‐18 B29‐19 B29‐14‐3 B29‐15‐1 B29‐15‐3 B29‐16‐1 B29‐16‐3 B29‐17‐1 B29‐17‐3 B29‐18‐1.5 B29‐18‐3 B29‐19‐2 6/29/2016 6/29/2016 6/29/2016 6/28/2016 6/28/2016 6/29/2016 6/29/2016 6/29/2016 6/29/2016 6/29/2016

2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 1 ‐ 1.5 (ft) 2.5 ‐ 3 (ft) 1.5 ‐ 2 (ft) ‐ < 0.004 < 0.004 ‐‐‐‐ < 0.004 ‐‐
‐ < 0.0041 < 0.0042 ‐‐‐‐ < 0.0042 ‐‐
‐‐‐‐‐‐‐‐‐‐‐ < 0.002 < 0.002 ‐‐‐‐ < 0.002 ‐‐
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ < 0.0024 < 0.0025 ‐‐‐‐ < 0.0025 ‐‐ ‐ < 0.002 < 0.002 ‐‐‐‐ 0.015 ‐‐
‐ < 0.0021 < 0.0021 ‐‐‐‐ 0.015 ‐‐
‐ < 0.0018 < 0.0018 ‐‐‐‐ 0.018 ‐‐
‐ < 0.0017 < 0.0017 ‐‐‐‐ 0.031 ‐‐
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ < 0.002 < 0.0021 ‐‐‐‐ < 0.0021 ‐‐ ‐ < 0.0029 < 0.0029 ‐‐‐‐ 0.19 ‐‐
‐‐‐‐‐‐‐‐‐‐
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ < 0.0021 < 0.0021 ‐‐‐‐ < 0.0021 ‐‐ ‐ < 0.0017 < 0.0017 ‐‐‐‐ < 0.0017 ‐‐
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ < 0.0022 < 0.0022 ‐‐‐‐ 0.33 ‐‐ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ < 0.004 < 0.004 ‐‐‐‐ < 0.004 ‐‐
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ 0.0022 J < 0.0021 ‐‐‐‐ < 0.0021 ‐‐ ‐‐‐‐‐‐‐‐‐‐‐ < 0.0029 < 0.0029 ‐‐‐‐ 0.0037 J ‐‐
‐‐‐‐‐‐‐‐‐‐
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 34 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
TPH (mg/kg)
PHC as Gasoline 5,400 97 ‐
Total Petroleum Hydrocarbons (C6) ‐‐‐
Total Petroleum Hydrocarbons (C7) ‐‐‐
Total Petroleum Hydrocarbons (C8) ‐‐‐
Total Petroleum Hydrocarbons (C9‐C10) ‐‐‐
Total Petroleum Hydrocarbons (C11‐C12) ‐‐‐
Total Petroleum Hydrocarbons (C13‐C14) ‐‐‐
Total Petroleum Hydrocarbons (C15‐C16) ‐‐‐
Total Petroleum Hydrocarbons (C17‐C18) ‐‐‐
Total Petroleum Hydrocarbons (C19‐C20) ‐‐‐
Total Petroleum Hydrocarbons (C21‐C22) ‐‐‐
Total Petroleum Hydrocarbons (C23‐C24) ‐‐‐
Total Petroleum Hydrocarbons (C25‐C28) ‐‐‐
Total Petroleum Hydrocarbons (C29‐C32) ‐‐‐
Total Petroleum Hydrocarbons (C33‐C36) ‐‐‐
Total Petroleum Hydrocarbons (C37‐C40) ‐‐‐
Total Petroleum Hydrocarbons (C41‐C44) ‐‐‐
Total Petroleum Hydrocarbons (C6‐C44) ‐‐‐
Total Petroleum Hydrocarbons (C10‐C28) Diesel ‐‐‐
Total Petroleum Hydrocarbons (C10‐C28) DRO ‐‐‐
Total Petroleum Hydrocarbons (>C28‐C44) ‐‐‐
Gasoline C6‐C8 (calculated) 2,900 ‐‐
Diesel C9‐C16 (calculated) 5,400 97 ‐
Oil C17‐C32 (calculated) 7,300 2,400 ‐
‐
VOCs (mg/kg)
1,1,1,2‐Tetrachloroethane ‐ 8.8 ‐
1,1,1‐Trichloroethane 1.7 7,200 ‐
1,1,2,2‐Tetrachloroethane ‐ 2.7 ‐
1,1,2‐Trichloroethane 0.04 ‐‐
1,1‐Dichloroethane 0.56 16 ‐
1,1‐Dichloroethene 0.071 350 ‐
1,1‐Dichloropropene ‐‐‐
1,2,3‐Trichlorobenzene ‐ 300 ‐
1,2,3‐Trichloropropane ‐ 0.021 ‐
1,2,3‐Trimethylbenzene ‐‐‐
1,2,4‐Trichlorobenzene 0.818 35 ‐
1,2,4‐Trimethylbenzene ‐‐‐
1,2‐Dibromo‐3‐chloropropane (DBCP) ‐ 0.057 ‐
1,2‐Dibromoethane (Ethylene Dibromide) ‐ 0.16 ‐
1,2‐Dichlorobenzene 28 ‐‐
1,2‐Dichloroethane 0.0028 ‐‐
1,2‐Dichloropropane ‐‐‐
B29‐14 B29‐15 B29‐15 B29‐16 B29‐16 B29‐17 B29‐17 B29‐18 B29‐18 B29‐19 B29‐14‐3 B29‐15‐1 B29‐15‐3 B29‐16‐1 B29‐16‐3 B29‐17‐1 B29‐17‐3 B29‐18‐1.5 B29‐18‐3 B29‐19‐2 6/29/2016 6/29/2016 6/29/2016 6/28/2016 6/28/2016 6/29/2016 6/29/2016 6/29/2016 6/29/2016 6/29/2016

2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 1 ‐ 1.5 (ft) 2.5 ‐ 3 (ft) 1.5 ‐ 2 (ft) ‐‐‐‐‐‐‐‐‐‐
< 1.2 < 1.3 < 1.2 < 1.2 < 1.3 < 1.2 < 1.3 < 13 < 1.3 < 1.2 < 1.2 < 1.3 < 1.2 < 1.2 < 1.3 < 1.2 < 1.3 < 13 < 1.3 < 1.2 < 1.2 < 1.3 < 1.2 < 1.2 < 1.3 < 1.2 < 1.3 < 13 < 1.3 < 1.2 < 1.2 < 1.3 < 1.2 < 1.2 < 1.3 < 1.2 < 1.3 < 13 < 1.3 < 1.2 < 1.2 < 1.3 < 1.2 < 1.2 < 1.3 < 1.2 < 1.3 < 13 < 1.3 < 1.2 < 1.2 < 1.3 < 1.2 < 1.2 < 1.3 < 1.2 < 1.3 < 13 < 1.3 < 1.2 < 1.2 < 1.3 < 1.2 < 1.2 < 1.3 < 1.2 < 1.3 < 13 < 1.3 < 1.2 < 1.2 < 1.3 < 1.2 < 1.2 < 1.3 < 1.2 < 1.3 < 13 < 1.3 < 1.2 < 1.2 < 1.3 < 1.2 < 1.2 1.8 J 1.5 J < 1.3 < 13 < 1.3 < 1.2 < 1.2 < 1.3 < 1.2 < 1.2 2.6 J 1.6 J < 1.3 < 13 < 1.3 < 1.2 < 1.2 2.8 J < 1.2 1.4 J 3.1 J 2.2 J < 1.3 < 13 < 1.3 < 1.2 < 1.2 3 J < 1.2 2.8 J 5.5 4.2 J < 1.3 21 J < 1.3 < 1.2
< 1.2 4.2 J < 1.2 4.1 J 8.8 10 < 1.3 150 2.2 J 3.2 J
< 1.2 < 1.3 < 1.2 < 1.2 12 4.9 J < 1.3 150 2.4 J2 J
< 1.2 < 1.3 < 1.2 < 1.2 < 1.3 < 1.2 < 1.3 44 J < 1.3 < 1.2 < 1.2 < 1.3 < 1.2 < 1.2 < 1.3 < 1.2 < 1.3 39 J < 1.3 < 1.2 < 1.3 10 < 1.3 8.3 34 25 < 1.3 400 4.5 J 5.3
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
< 1.2 < 1.3 < 1.2 < 1.2 < 1.3 < 1.2 < 1.3 < 13 < 1.3 < 1.2 < 1.2 < 1.3 < 1.2 < 1.2 < 1.3 < 1.2 < 1.3 < 13 < 1.3 < 1.2 < 1.2 10 < 1.2 8.3 21.8 19.5 < 1.3 171 2.2 3.2
< 0.00023 < 0.00024 < 0.00024 < 0.00025 < 0.00024 < 0.00024 < 0.00024 < 0.00024 < 0.00024 < 0.00024 < 0.00022 < 0.00022 < 0.00022 < 0.00023 < 0.00022 < 0.00023 < 0.00023 < 0.00022 < 0.00022 < 0.00023 < 0.00033 < 0.00034 < 0.00034 < 0.00036 < 0.00034 < 0.00035 < 0.00035 < 0.00034 < 0.00034 < 0.00035 < 0.00034 < 0.00035 < 0.00035 < 0.00036 < 0.00035 < 0.00036 < 0.00036 < 0.00035 < 0.00035 < 0.00036 < 0.0002 < 0.00021 < 0.00021 < 0.00022 < 0.00021 < 0.00021 < 0.00021 < 0.00021 < 0.00021 < 0.00021 < 0.00033 < 0.00034 < 0.00034 < 0.00036 < 0.00034 < 0.00035 < 0.00035 < 0.00034 < 0.00034 < 0.00035 < 0.00031 < 0.00032 < 0.00033 < 0.00034 < 0.00032 < 0.00033 < 0.00033 < 0.00032 < 0.00032 < 0.00033 < 0.00087 < 0.0009 < 0.00091 < 0.00094 < 0.0009 < 0.00092 < 0.00093 < 0.0009 < 0.0009 < 0.00093 < 0.00079 < 0.00082 < 0.00083 < 0.00086 < 0.00081 < 0.00083 < 0.00084 < 0.00081 < 0.00082 < 0.00084 ‐‐‐‐‐‐‐‐‐‐
< 0.0003 < 0.00031 < 0.00031 < 0.00032 < 0.0003 < 0.00031 < 0.00032 < 0.0003 < 0.00031 < 0.00032 < 0.00056 < 0.00058 < 0.00058 < 0.0006 < 0.00057 < 0.00059 < 0.0006 < 0.00057 < 0.00058 < 0.0006 < 0.0017 < 0.0017 < 0.0017 < 0.0018 < 0.0017 < 0.0017 < 0.0018 < 0.0017 < 0.0017 < 0.0018 < 0.00024 < 0.00025 < 0.00025 < 0.00026 < 0.00025 < 0.00026 < 0.00026 < 0.00025 < 0.00025 < 0.00026 < 0.00022 < 0.00023 < 0.00023 < 0.00024 < 0.00022 < 0.00023 < 0.00023 < 0.00022 < 0.00023 < 0.00023 < 0.0003 < 0.00031 < 0.00031 < 0.00032 < 0.00031 < 0.00032 < 0.00032 < 0.00031 < 0.00031 < 0.00032 < 0.00042 < 0.00043 < 0.00044 < 0.00045 < 0.00043 < 0.00044 < 0.00045 < 0.00043 < 0.00043 < 0.00045 HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 35 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
VOCs (mg/kg) ‐
1,3,5‐Trimethylbenzene ‐‐‐
1,3‐Dichlorobenzene ‐‐‐
1,3‐Dichloropropane ‐ 2,200 ‐
1,4‐Dichloro‐2‐butene ‐‐‐
1,4‐Dichlorobenzene 0.23 ‐‐
2,2‐Dichloropropane ‐‐‐
2‐Butanone (Methyl Ethyl Ketone) ‐‐‐
2‐Chlorotoluene ‐ 2,500 ‐
2‐Hexanone ‐‐‐2‐Phenylbutane (sec‐Butylbenzene) ‐ 12,000 ‐ 4‐Chlorotoluene ‐ 2,300 ‐
4‐Methyl‐2‐Pentanone (Methyl Isobutyl Ketone) ‐‐‐
Acetone ‐‐‐Acrylonitrile ‐‐‐Allyl chloride ‐‐‐
Benzene 0.019 1.4 ‐Bromobenzene ‐‐‐Bromodichloromethane ‐ 1.3 ‐ Bromoform ‐ 86 ‐
Bromomethane (Methyl Bromide) ‐‐‐
Carbon disulfide ‐‐‐
Carbon tetrachloride ‐ 2.9 ‐
Chlorobenzene 2 ‐‐Chlorobromomethane ‐ 4.1 ‐
Chloroethane ‐‐‐Chloroform (Trichloromethane) ‐‐‐
Chloromethane (Methyl Chloride) ‐‐‐
cis‐1,2‐Dichloroethene 4.9 84 ‐
cis‐1,3‐Dichloropropene ‐‐‐
cis‐1,4‐Dichloro‐2‐butene ‐‐‐Cymene (p‐Isopropyltoluene) ‐ 1,600 ‐ Dibromochloromethane ‐‐‐Dibromomethane ‐‐‐Dichlorodifluoromethane (CFC‐12) ‐‐‐ Diisopropyl ether (DIPE) ‐‐‐
Ethylbenzene 7.7 ‐‐Hexachlorobutadiene ‐ 5.3 ‐
Isopropylbenzene (Cumene) ‐‐‐
m,p‐Xylenes 6 ‐‐
Methyl Tert Butyl Ether ‐‐‐
Methylene chloride 0.019 26 ‐
Naphthalene ‐ 6.5 ‐
n‐Butylbenzene ‐‐‐
B29‐14 B29‐15 B29‐15 B29‐16 B29‐16 B29‐17 B29‐17 B29‐18 B29‐18 B29‐19 B29‐14‐3 B29‐15‐1 B29‐15‐3 B29‐16‐1 B29‐16‐3 B29‐17‐1 B29‐17‐3 B29‐18‐1.5 B29‐18‐3 B29‐19‐2 6/29/2016 6/29/2016 6/29/2016 6/28/2016 6/28/2016 6/29/2016 6/29/2016 6/29/2016 6/29/2016 6/29/2016

2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 1 ‐ 1.5 (ft) 2.5 ‐ 3 (ft) 1.5 ‐ 2 (ft) < 0.00052 < 0.00054 < 0.00055 < 0.00057 < 0.00054 < 0.00055 < 0.00056 < 0.00054 < 0.00054 < 0.00056 < 0.00017 < 0.00017 < 0.00018 < 0.00018 < 0.00017 < 0.00018 < 0.00018 < 0.00017 < 0.00017 < 0.00018 < 0.00024 < 0.00025 < 0.00025 < 0.00026 < 0.00025 < 0.00025 < 0.00026 < 0.00025 < 0.00025 < 0.00026 ‐‐‐‐‐‐‐‐‐‐
< 0.00021 < 0.00022 < 0.00022 < 0.00023 < 0.00022 < 0.00022 < 0.00023 < 0.00022 < 0.00022 < 0.00023 < 0.00032 < 0.00033 < 0.00033 < 0.00034 < 0.00032 < 0.00033 < 0.00034 < 0.00032 < 0.00033 < 0.00034 < 0.0036 < 0.0037 < 0.0038 < 0.0039 < 0.0037 < 0.0038 < 0.0038 < 0.0037 < 0.0037 < 0.0038 < 0.00022 < 0.00023 < 0.00023 < 0.00024 < 0.00023 < 0.00023 < 0.00024 < 0.00023 < 0.00023 < 0.00024 < 0.0017 < 0.0017 < 0.0018 < 0.0018 < 0.0017 < 0.0018 < 0.0018 < 0.0017 < 0.0017 < 0.0018 < 0.00055 < 0.00057 < 0.00058 < 0.0006 < 0.00057 < 0.00058 < 0.00059 < 0.00057 < 0.00057 < 0.00059 < 0.0002 < 0.00021 < 0.00021 < 0.00022 < 0.00021 < 0.00021 < 0.00022 < 0.00021 < 0.00021 < 0.00022 < 0.0041 < 0.0043 < 0.0043 < 0.0045 < 0.0042 < 0.0043 < 0.0044 < 0.0042 < 0.0043 < 0.0044 < 0.006 0.01 J < 0.0062 < 0.0064 < 0.0061 < 0.0063 0.0069 J < 0.0061 < 0.0062 < 0.0063 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
< 0.00012 < 0.00013 < 0.00013 < 0.00013 < 0.00013 < 0.00013 < 0.00013 < 0.00013 < 0.00013 < 0.00013 < 0.0002 < 0.00021 < 0.00021 < 0.00022 < 0.00021 < 0.00021 < 0.00021 < 0.00021 < 0.00021 < 0.00021 < 0.00022 < 0.00023 < 0.00023 < 0.00024 < 0.00023 < 0.00023 < 0.00024 < 0.00023 < 0.00023 < 0.00024 < 0.00076 < 0.00078 < 0.00079 < 0.00082 < 0.00078 < 0.0008 < 0.00081 < 0.00078 < 0.00078 < 0.00081 < 0.009 < 0.0093 < 0.0094 < 0.0097 < 0.0092 < 0.0095 < 0.0096 < 0.0092 < 0.0093 < 0.0096 < 0.00029 < 0.0003 < 0.0003 < 0.00032 < 0.0003 < 0.00031 < 0.00031 < 0.0003 < 0.0003 < 0.00031 < 0.00027 < 0.00028 < 0.00028 < 0.00029 < 0.00028 < 0.00028 < 0.00029 < 0.00028 < 0.00028 < 0.00029 < 0.00021 < 0.00022 < 0.00022 < 0.00023 < 0.00022 < 0.00022 < 0.00023 < 0.00022 < 0.00022 < 0.00023 < 0.00066 < 0.00068 < 0.00069 < 0.00071 < 0.00068 < 0.00069 < 0.0007 < 0.00068 < 0.00068 < 0.0007 < 0.0014 < 0.0015 < 0.0015 < 0.0015 < 0.0015 < 0.0015 < 0.0015 < 0.0015 < 0.0015 < 0.0015 < 0.00023 < 0.00024 < 0.00024 < 0.00025 < 0.00023 < 0.00024 < 0.00024 < 0.00023 < 0.00024 < 0.00024 < 0.00029 < 0.0003 < 0.0003 < 0.00031 < 0.0003 < 0.00031 < 0.00031 < 0.0003 < 0.0003 < 0.00031

0.00047 J < 0.00028 < 0.00028 < 0.00029 < 0.00027 < 0.00028 < 0.00028 < 0.00027 < 0.00028 < 0.00028 < 0.00024 < 0.00025 < 0.00025 < 0.00026 < 0.00025 < 0.00026 < 0.00026 < 0.00025 < 0.00025 < 0.00026 ‐‐‐‐‐‐‐‐‐‐
< 0.0006 < 0.00062 < 0.00063 < 0.00065 < 0.00062 < 0.00063 < 0.00064 < 0.00062 < 0.00062 < 0.00064 < 0.00055 < 0.00056 < 0.00057 < 0.00059 < 0.00056 < 0.00057 < 0.00058 < 0.00056 < 0.00056 < 0.00058 < 0.00074 < 0.00077 < 0.00077 < 0.0008 < 0.00076 < 0.00078 < 0.00079 < 0.00076 < 0.00077 < 0.00079 < 0.00042 < 0.00044 < 0.00044 < 0.00046 < 0.00043 < 0.00045 < 0.00045 < 0.00043 < 0.00044 < 0.00045 ‐‐‐‐‐‐‐‐‐‐
< 0.00014 < 0.00015 < 0.00015 < 0.00016 < 0.00015 < 0.00015 < 0.00015 < 0.00015 < 0.00015 < 0.00015 ‐‐‐‐‐‐‐‐‐‐
< 0.00052 < 0.00054 < 0.00054 < 0.00056 < 0.00054 < 0.00055 < 0.00056 < 0.00054 < 0.00054 < 0.00056 < 0.00026 < 0.00026 < 0.00027 < 0.00028 < 0.00026 < 0.00027 < 0.00027 < 0.00026 < 0.00026 < 0.00027 < 0.00028 < 0.00029 < 0.00029 < 0.0003 < 0.00029 < 0.0003 < 0.0003 < 0.00029 < 0.00029 < 0.0003 < 0.0013 < 0.0013 < 0.0013 < 0.0014 < 0.0013 < 0.0013 < 0.0014 < 0.0013 < 0.0013 < 0.0014 < 0.00078 < 0.0008 < 0.00081 < 0.00084 < 0.0008 < 0.00082 < 0.00083 < 0.0008 < 0.0008 < 0.00083 < 0.00015 < 0.00015 < 0.00016 < 0.00016 < 0.00015 < 0.00016 < 0.00016 < 0.00015 < 0.00015 < 0.00016 HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 36 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
VOCs (mg/kg) ‐
n‐Propylbenzene ‐‐‐
o‐Xylene 6 ‐‐
PHC as Gasoline 5,400 97 ‐
Styrene ‐ 32,000 ‐
Tert‐Amyl Methyl Ether (TAME) ‐‐‐
Tert‐Butyl Alcohol (tert‐Butanol) ‐‐‐
Tert‐Butyl Ethyl Ether (ETBE) ‐‐‐tert‐Butylbenzene ‐‐‐
Tetrachloroethene 2.1 2.7 ‐
Toluene 0.44 5,300 ‐trans‐1,2‐Dichloroethene 0.17 600 ‐ trans‐1,3‐Dichloropropene ‐‐‐
Trichloroethene 27 63 2,040
Trichlorofluoromethane (CFC‐11) ‐ 5,400 ‐
Trifluorotrichloroethane (Freon 113) 6.4 ‐‐
Vinyl acetate ‐‐‐
Vinyl chloride 13 0.15 ‐
Xylene (total) 6 ‐‐
Notes and Abbreviations:

BOLD = concentration detected at or above
reported detection limit.

No COPC in soil exceeded its Total Threshold Limit Concentration (TTLC). < = analyte not detected above the indicated
reporting limit.B = compound detected in the associated blank J = estimated concentration.‐ = not analyzed or not applicable. mg/kg = milligrams per kilogram.
bgs = below ground surface.

GPL: Groundwater Protection Level (Haley & Aldrich 2014a, 2014b) TTLC: Total Threshold Limit Concentration, CCR Title 22 Section 66261.24 1 Cancer Endpoint. If there is no Cancer Endpoint, the Noncancer Endpoint is noted.2 Site background3 U.S. EPA Region 9 Remediation Screening Level DTSC‐SL: Commercial/Industrial Department of Toxic Substances Control‐Screening Level, HHRA Note 3, June 2020.

B29‐14 B29‐15 B29‐15 B29‐16 B29‐16 B29‐17 B29‐17 B29‐18 B29‐18 B29‐19 B29‐14‐3 B29‐15‐1 B29‐15‐3 B29‐16‐1 B29‐16‐3 B29‐17‐1 B29‐17‐3 B29‐18‐1.5 B29‐18‐3 B29‐19‐2 6/29/2016 6/29/2016 6/29/2016 6/28/2016 6/28/2016 6/29/2016 6/29/2016 6/29/2016 6/29/2016 6/29/2016

2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 1 ‐ 1.5 (ft) 2.5 ‐ 3 (ft) 1.5 ‐ 2 (ft) < 0.00048 < 0.0005 < 0.0005 < 0.00052 < 0.00049 < 0.0005 < 0.00051 < 0.00049 < 0.0005 < 0.00051 < 0.00053 < 0.00055 < 0.00055 < 0.00057 < 0.00055 < 0.00056 < 0.00057 < 0.00055 < 0.00055 < 0.00057 ‐‐‐‐‐‐‐‐‐‐
< 0.00058 < 0.0006 < 0.0006 < 0.00062 < 0.00059 < 0.00061 < 0.00061 < 0.00059 < 0.0006 < 0.00061 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
< 0.00014 < 0.00015 < 0.00015 < 0.00016 < 0.00015 < 0.00015 < 0.00015 < 0.00015 < 0.00015 < 0.00015 < 0.0002 < 0.00021 < 0.00021 < 0.00022 < 0.00021 < 0.00021 < 0.00021 < 0.00021 < 0.00021 < 0.00021 < 0.00049 < 0.00051 < 0.00051 < 0.00053 < 0.00051 < 0.00052 < 0.00052 < 0.00051 < 0.00051 < 0.00052 < 0.00048 < 0.0005 < 0.0005 < 0.00052 < 0.0005 < 0.00051 < 0.00051 < 0.0005 < 0.0005 < 0.00051 < 0.00058 < 0.0006 < 0.0006 < 0.00062 < 0.00059 < 0.00061 < 0.00062 < 0.00059 < 0.0006 < 0.00062

0.002 J < 0.0003 0.0018 J < 0.00031 < 0.00029 < 0.0003 < 0.00031 < 0.00029 < 0.0003 < 0.00031 < 0.00036 < 0.00037 < 0.00037 < 0.00039 < 0.00037 < 0.00038 < 0.00038 < 0.00037 < 0.00037 < 0.00038 < 0.00034 < 0.00035 < 0.00035 < 0.00036 < 0.00035 < 0.00035 < 0.00036 < 0.00035 < 0.00035 < 0.00036 < 0.0045 < 0.0047 < 0.0047 < 0.0049 < 0.0047 < 0.0048 < 0.0048 < 0.0047 < 0.0047 < 0.0048 < 0.00048 < 0.0005 < 0.0005 < 0.00052 < 0.00049 < 0.00051 < 0.00051 < 0.00049 < 0.0005 < 0.00051 ‐‐‐‐‐‐‐‐‐‐
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 37 of 102 ends

LocationSample Name
Sample Date
Sample Depth
Metals (mg/kg) GPL DTSC TTLC
Antimony 7.84 ‐ 500
Arsenic 24.3 0.36/82 500
Barium 43000 ‐ 10,000
Beryllium ‐ 6,900 75
Cadmium 970 4,000 100Chromium 660 ‐ 2,500
Chromium VI (Hexavalent) 30 6.2 500
Cobalt ‐‐ 8,000
Copper 5600 ‐ 2,500
Lead 232 320 1,000Mercury 2.1 4.4 20Molybdenum ‐‐ 3,500 Nickel 3400 64,000 2,000Selenium ‐‐ 100Silver ‐‐ 500Thallium ‐‐ 700Vanadium ‐‐ 2,400 Zinc ‐‐ 5,000
‐
PCBs (mg/kg)
Aroclor‐1016 (PCB‐1016) ‐ 17 ‐
Aroclor‐1221 (PCB‐1221) ‐ 0.53 ‐
Aroclor‐1232 (PCB‐1232) ‐ 0.49 ‐
Aroclor‐1242 (PCB‐1242) ‐ 0.58 ‐
Aroclor‐1248 (PCB‐1248) ‐ 0.58 ‐
Aroclor‐1254 (PCB‐1254) ‐ 0.59 ‐
Aroclor‐1260 (PCB‐1260) ‐ 0.6 ‐
Aroclor‐1262 (PCB‐1262) ‐‐‐
Aroclor‐1268 (PCB‐1268) ‐‐‐
Total PCBs 130 0.58 50
‐
PEST (mg/kg)
4,4'‐DDD ‐ 6.2 1.0
4,4'‐DDE ‐ 9.3 1.04,4'‐DDT ‐ 7.1 1.0
Aldrin ‐ 0.18 1.4
alpha‐BHC ‐ 0.24 ‐
beta‐BHC ‐ 0.82 ‐
Chlordane ‐ 6.1 2.5
delta‐BHC ‐‐‐
Dieldrin ‐ 0.093 8.0
Endosulfan I ‐ 6,000 ‐
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
B29‐19 B29‐20 B29‐20 B29‐21 B29‐22 B29‐22 B29‐23 B29‐23 B29‐24 B29‐24 B29‐19‐5 B29‐20‐1 B29‐20‐2 B29‐21‐1 B29‐22‐010 B29‐22‐050 B29‐23‐010 B29‐23‐050 B29‐24‐010 B29‐24‐050 6/29/2016 6/27/2016 6/27/2016 6/28/2016 1/10/2020 1/10/2020 1/10/2020 1/10/2020 1/14/2020 1/14/2020

4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 1.5 ‐ 2 (ft) 0.5 ‐ 1 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) < 0.148 < 0.155 < 0.143 < 0.148 ‐‐‐‐‐‐

1.49 1.41 1.61 7.59 ‐‐‐‐‐‐52.7 77.4 38.8 40.7 ‐‐‐‐‐‐

0.358 0.211 J 0.241 0.152 J ‐‐‐‐‐‐

0.163 J 0.406 J 0.158 J 0.424 J ‐‐‐‐‐‐

9.39 8.11 7.29 9.37 ‐‐‐‐‐‐5.38 4.37 4.48 6.2 ‐‐‐‐‐‐4.57 7.17 4.2 12.8 ‐‐‐‐‐‐3.54 41 5.14 2.02 ‐‐‐‐‐‐

0.0108 J 0.0359 J < 0.00559 0.00898 J ‐‐‐‐‐‐
< 0.131 < 0.137 < 0.126 0.271 ‐‐‐‐‐‐

5.63 3.61 4.37 3.41 ‐‐‐‐‐‐
< 0.298 < 0.312 < 0.287 1.14 ‐‐‐‐‐‐
< 0.0853 < 0.0893 < 0.082 0.114 J ‐‐‐‐‐‐
< 0.151 0.197 J < 0.145 < 0.151 ‐‐‐‐‐‐
26 20.8 22.8 27.8 ‐‐‐‐‐‐

18.5 255 29.6 41.3 ‐‐‐‐‐‐
< 0.021 < 0.021 < 0.021 < 0.021 ‐‐‐‐‐‐
< 0.042 < 0.042 < 0.042 < 0.043 ‐‐‐‐‐‐
< 0.025 < 0.025 < 0.025 < 0.025 ‐‐‐‐‐‐
< 0.037 < 0.037 < 0.037 < 0.037 ‐‐‐‐‐‐
< 0.032 < 0.032 < 0.032 < 0.032 ‐‐‐‐‐‐
< 0.032 < 0.032 < 0.032 < 0.032 ‐‐‐‐‐‐
< 0.03 < 0.03 < 0.03 < 0.031 ‐‐‐‐‐‐
< 0.035 < 0.035 < 0.035 < 0.035 ‐‐‐‐‐‐
< 0.033 < 0.033 < 0.033 < 0.034 ‐‐‐‐‐‐
< 0.042 < 0.042 < 0.042 < 0.043 ‐‐‐‐‐‐
‐ < 0.0024 ‐ < 0.0024 ‐‐‐‐‐‐
‐ < 0.0022 ‐ < 0.0022 ‐‐‐‐‐‐
‐ < 0.0022 ‐ < 0.0022 ‐‐‐‐‐‐
‐ < 0.0022 ‐ < 0.0022 ‐‐‐‐‐‐
‐ < 0.0037 ‐ < 0.0037 ‐‐‐‐‐‐
‐ < 0.0025 ‐ < 0.0025 ‐‐‐‐‐‐
‐ < 0.026 ‐ < 0.026 ‐‐‐‐‐‐
‐ < 0.0044 ‐ < 0.0044 ‐‐‐‐‐‐
‐ < 0.0022 ‐ < 0.0022 ‐‐‐‐‐‐
‐ < 0.002 ‐ < 0.002 ‐‐‐‐‐‐
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 38 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
PEST (mg/kg) ‐
Endosulfan II ‐ 6,000 ‐
Endosulfan sulfate ‐ 11,000 ‐
Endrin ‐ 160 0.2
Endrin aldehyde ‐‐‐
Endrin ketone ‐‐‐
gamma‐BHC (Lindane) ‐ 2 4.0
Heptachlor ‐ 0.63 4.7
Heptachlor epoxide ‐ 0.33 ‐
Methoxychlor ‐ 2600 100
Toxaphene ‐ 1.2 5
‐
SVOCs (mg/kg)
1,2,4‐Trichlorobenzene 0.818 35 ‐
1,2‐Dichlorobenzene 28 ‐‐
1,3‐Dichlorobenzene ‐‐‐
1,4‐Dichlorobenzene 0.23 ‐‐
1‐Methylnaphthalene ‐ 30 ‐
2,2'‐oxybis(2‐Chloropropane) ‐‐‐
2,4,5‐Trichlorophenol ‐ 53,000 ‐
2,4,6‐Trichlorophenol ‐ 21 ‐
2,4‐Dichlorophenol ‐ 1,600 ‐
2,4‐Dimethylphenol ‐ 11,000 ‐
2,4‐Dinitrophenol ‐ 1,100 ‐
2,4‐Dinitrotoluene ‐‐‐
2,6‐Dichlorophenol ‐ 4.7 ‐
2,6‐Dinitrotoluene ‐ 0.99 ‐
2‐Chloronaphthalene ‐ 27,000 ‐
2‐Chlorophenol ‐ 3,900 ‐
2‐Methylnaphthalene ‐ 1,300 ‐
2‐Methylphenol (o‐Cresol) ‐ 26,000 ‐
2‐Nitroaniline ‐ 5,200 ‐
2‐Nitrophenol ‐‐‐3,3'‐Dichlorobenzidine ‐ 0.93 ‐
3‐Nitroaniline ‐‐‐
4,6‐Dinitro‐2‐methylphenol ‐ 42 ‐
4‐Bromophenyl phenyl ether ‐‐‐
4‐Chloro‐3‐methylphenol ‐ 53,000 ‐
4‐Chloroaniline ‐ 7.4 ‐
4‐Chlorophenyl phenyl ether ‐‐‐
4‐Nitroaniline ‐ 74 ‐
4‐Nitrophenol ‐‐‐
B29‐19 B29‐20 B29‐20 B29‐21 B29‐22 B29‐22 B29‐23 B29‐23 B29‐24 B29‐24 B29‐19‐5 B29‐20‐1 B29‐20‐2 B29‐21‐1 B29‐22‐010 B29‐22‐050 B29‐23‐010 B29‐23‐050 B29‐24‐010 B29‐24‐050 6/29/2016 6/27/2016 6/27/2016 6/28/2016 1/10/2020 1/10/2020 1/10/2020 1/10/2020 1/14/2020 1/14/2020

4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 1.5 ‐ 2 (ft) 0.5 ‐ 1 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) ‐ < 0.0023 ‐ < 0.0024 ‐‐‐‐‐‐
‐ < 0.0026 ‐ < 0.0026 ‐‐‐‐‐‐
‐ < 0.0023 ‐ < 0.0024 ‐‐‐‐‐‐
‐ < 0.003 ‐ < 0.003 ‐‐‐‐‐‐
‐ < 0.0025 ‐ < 0.0025 ‐‐‐‐‐‐
‐ < 0.0022 ‐ < 0.0022 ‐‐‐‐‐‐
‐ < 0.0022 ‐ < 0.0022 ‐‐‐‐‐‐
‐ < 0.0037 ‐ < 0.0037 ‐‐‐‐‐‐
‐ < 0.0027 ‐ < 0.0027 ‐‐‐‐‐‐
‐ < 0.045 ‐ < 0.045 ‐‐‐‐‐‐
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 39 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
SVOCs (mg/kg) ‐
Acenaphthene ‐ 23,000 ‐
Acenaphthylene ‐‐‐Aniline ‐ 260 ‐
Anthracene ‐ 130,000 ‐
Azobenzene ‐‐‐Benzidine ‐ 0.003 ‐
Benzo(a)anthracene ‐ 12 ‐
Benzo(a)pyrene 14 1.3 ‐Benzo(b)fluoranthene ‐ 13 ‐
Benzo(g,h,i)perylene ‐‐‐Benzo(k)fluoranthene ‐ 210,000 ‐ Benzoic acid ‐ 2,100,000 ‐
Benzyl Alcohol ‐ 53,000 ‐
bis(2‐Chloroethoxy)methane ‐ 1,600 ‐
bis(2‐Chloroethyl)ether ‐ 0.47 ‐
bis(2‐Ethylhexyl)phthalate 57 110 ‐
Butyl benzylphthalate ‐ 780 ‐
Chrysene ‐ 1,300 ‐
Dibenz(a,h)anthracene ‐ 0.31 ‐
Dibenzofuran ‐ 650 ‐
Diethyl phthalate ‐ 420,000 ‐Dimethyl phthalate ‐‐‐
Di‐n‐butylphthalate ‐ 53,000 ‐
Di‐n‐octyl phthalate ‐ 5,300 ‐Fluoranthene ‐ 18,000 ‐
Fluorene ‐ 17,000 ‐
Hexachlorobenzene ‐ 0.86 ‐
Hexachlorobutadiene ‐ 5.3 ‐
Hexachlorocyclopentadiene ‐‐‐Hexachloroethane ‐‐‐Indeno(1,2,3‐cd)pyrene ‐ 13 ‐ Isophorone ‐ 1,600 ‐
m,p‐Cresols ‐‐‐
Naphthalene ‐ 6.5 ‐
Nitrobenzene ‐‐‐N‐Nitrosodimethylamine ‐ 0.53 ‐
N‐Nitrosodi‐n‐propylamine ‐ 0.21 ‐
N‐Nitrosodiphenylamine ‐ 300 ‐
Pentachlorophenol 0.0717 2 ‐Phenanthrene ‐‐‐Phenol ‐ 160,000 ‐ Pyrene ‐ 13,000 ‐
Pyridine ‐ 530 ‐
B29‐19 B29‐20 B29‐20 B29‐21 B29‐22 B29‐22 B29‐23 B29‐23 B29‐24 B29‐24 B29‐19‐5 B29‐20‐1 B29‐20‐2 B29‐21‐1 B29‐22‐010 B29‐22‐050 B29‐23‐010 B29‐23‐050 B29‐24‐010 B29‐24‐050 6/29/2016 6/27/2016 6/27/2016 6/28/2016 1/10/2020 1/10/2020 1/10/2020 1/10/2020 1/14/2020 1/14/2020

4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 1.5 ‐ 2 (ft) 0.5 ‐ 1 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 40 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
TPH (mg/kg)
PHC as Gasoline 5,400 97 ‐
Total Petroleum Hydrocarbons (C6) ‐‐‐
Total Petroleum Hydrocarbons (C7) ‐‐‐
Total Petroleum Hydrocarbons (C8) ‐‐‐
Total Petroleum Hydrocarbons (C9‐C10) ‐‐‐
Total Petroleum Hydrocarbons (C11‐C12) ‐‐‐
Total Petroleum Hydrocarbons (C13‐C14) ‐‐‐
Total Petroleum Hydrocarbons (C15‐C16) ‐‐‐
Total Petroleum Hydrocarbons (C17‐C18) ‐‐‐
Total Petroleum Hydrocarbons (C19‐C20) ‐‐‐
Total Petroleum Hydrocarbons (C21‐C22) ‐‐‐
Total Petroleum Hydrocarbons (C23‐C24) ‐‐‐
Total Petroleum Hydrocarbons (C25‐C28) ‐‐‐
Total Petroleum Hydrocarbons (C29‐C32) ‐‐‐
Total Petroleum Hydrocarbons (C33‐C36) ‐‐‐
Total Petroleum Hydrocarbons (C37‐C40) ‐‐‐
Total Petroleum Hydrocarbons (C41‐C44) ‐‐‐
Total Petroleum Hydrocarbons (C6‐C44) ‐‐‐
Total Petroleum Hydrocarbons (C10‐C28) Diesel ‐‐‐
Total Petroleum Hydrocarbons (C10‐C28) DRO ‐‐‐
Total Petroleum Hydrocarbons (>C28‐C44) ‐‐‐
Gasoline C6‐C8 (calculated) 2,900 ‐‐
Diesel C9‐C16 (calculated) 5,400 97 ‐
Oil C17‐C32 (calculated) 7,300 2,400 ‐
‐
VOCs (mg/kg)
1,1,1,2‐Tetrachloroethane ‐ 8.8 ‐
1,1,1‐Trichloroethane 1.7 7,200 ‐
1,1,2,2‐Tetrachloroethane ‐ 2.7 ‐
1,1,2‐Trichloroethane 0.04 ‐‐
1,1‐Dichloroethane 0.56 16 ‐
1,1‐Dichloroethene 0.071 350 ‐
1,1‐Dichloropropene ‐‐‐
1,2,3‐Trichlorobenzene ‐ 300 ‐
1,2,3‐Trichloropropane ‐ 0.021 ‐
1,2,3‐Trimethylbenzene ‐‐‐
1,2,4‐Trichlorobenzene 0.818 35 ‐
1,2,4‐Trimethylbenzene ‐‐‐
1,2‐Dibromo‐3‐chloropropane (DBCP) ‐ 0.057 ‐
1,2‐Dibromoethane (Ethylene Dibromide) ‐ 0.16 ‐
1,2‐Dichlorobenzene 28 ‐‐
1,2‐Dichloroethane 0.0028 ‐‐
1,2‐Dichloropropane ‐‐‐
B29‐19 B29‐20 B29‐20 B29‐21 B29‐22 B29‐22 B29‐23 B29‐23 B29‐24 B29‐24 B29‐19‐5 B29‐20‐1 B29‐20‐2 B29‐21‐1 B29‐22‐010 B29‐22‐050 B29‐23‐010 B29‐23‐050 B29‐24‐010 B29‐24‐050 6/29/2016 6/27/2016 6/27/2016 6/28/2016 1/10/2020 1/10/2020 1/10/2020 1/10/2020 1/14/2020 1/14/2020

4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 1.5 ‐ 2 (ft) 0.5 ‐ 1 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) ‐‐‐‐‐‐‐‐‐‐
< 1.3 < 1.3 < 12 < 1.2 ‐‐‐‐‐‐
< 1.3 < 1.3 < 12 < 1.2 ‐‐‐‐‐‐
< 1.3 < 1.3 < 12 < 1.2 ‐‐‐‐‐‐
< 1.3 < 1.3 < 12 < 1.2 ‐‐‐‐‐‐
< 1.3 < 1.3 < 12 < 1.2 ‐‐‐‐‐‐
< 1.3 < 1.3 < 12 < 1.2 ‐‐‐‐‐‐
< 1.3 < 1.3 < 12 < 1.2 ‐‐‐‐‐‐
< 1.3 < 1.3 < 12 1.9 J ‐‐‐‐‐‐
< 1.3 < 1.3 < 12 9 ‐‐‐‐‐‐
< 1.3 < 1.3 < 12 6.2 ‐‐‐‐‐‐
< 1.3 < 1.3 20 J 21 ‐‐‐‐‐‐

2.5 J 2.4 J 50 24 ‐‐‐‐‐‐3.2 J 6.5 140 27 ‐‐‐‐‐‐

1.8 J 8.1 180 28 ‐‐‐‐‐‐
< 1.3 7.6 260 < 1.2 ‐‐‐‐‐‐
< 1.3 2.1 J 88 < 1.2 ‐‐‐‐‐‐

7.5 27 740 120 ‐‐‐‐‐‐
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
< 1.3 < 1.3 < 12 < 1.2 ‐‐‐‐‐‐
< 1.3 < 1.3 < 12 < 1.2 ‐‐‐‐‐‐

5.7 8.9 210 89.1 ‐‐‐‐‐‐
< 0.00025 < 0.00023 < 0.00024 < 0.00024 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.00023 < 0.00022 < 0.00022 < 0.00023 < 0.000275 < 0.000275 < 0.000275 < 0.000275 < 0.000275 < 0.000275 < 0.00036 < 0.00033 < 0.00034 < 0.00035 < 0.00039 < 0.00039 < 0.00039 < 0.00039 < 0.00039 < 0.00039 < 0.00037 < 0.00034 < 0.00035 < 0.00036 < 0.000883 < 0.000883 < 0.000883 < 0.000883 < 0.000883 < 0.000883 < 0.00022 < 0.0002 < 0.00021 < 0.00021 < 0.000575 < 0.000575 < 0.000575 < 0.000575 < 0.000575 < 0.000575 < 0.00036 < 0.00033 < 0.00034 < 0.00035 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.00034 < 0.00032 < 0.00032 < 0.00033 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.00095 < 0.00088 < 0.0009 < 0.00092 < 0.000625 < 0.000625 < 0.000625 < 0.000625 < 0.000625 < 0.000625 < 0.00086 < 0.0008 < 0.00082 < 0.00083 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 ‐‐‐‐ < 0.00115 < 0.00115 < 0.00115 < 0.00115 < 0.00115 < 0.00115 < 0.00032 < 0.0003 < 0.00031 < 0.00031 < 0.00482 < 0.00482 < 0.00482 < 0.00482 < 0.00482 < 0.00482 < 0.00061 < 0.00057 < 0.00058 0.0052 < 0.00116 < 0.00116 < 0.00116 < 0.00116 0.00117 J < 0.00116 < 0.0018 < 0.0017 < 0.0017 < 0.0017 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.00026 < 0.00025 < 0.00025 < 0.00026 < 0.000525 < 0.000525 < 0.000525 < 0.000525 < 0.000525 < 0.000525 < 0.00024 < 0.00022 < 0.00022 < 0.00023 < 0.00145 < 0.00145 < 0.00145 < 0.00145 < 0.00145 < 0.00145 < 0.00033 < 0.0003 < 0.00031 < 0.00032 < 0.000475 < 0.000475 < 0.000475 < 0.000475 < 0.000475 < 0.000475 < 0.00045 < 0.00042 < 0.00043 < 0.00044 < 0.00127 < 0.00127 < 0.00127 < 0.00127 < 0.00127 < 0.00127 HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 41 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
VOCs (mg/kg) ‐
1,3,5‐Trimethylbenzene ‐‐‐
1,3‐Dichlorobenzene ‐‐‐
1,3‐Dichloropropane ‐ 2,200 ‐
1,4‐Dichloro‐2‐butene ‐‐‐
1,4‐Dichlorobenzene 0.23 ‐‐
2,2‐Dichloropropane ‐‐‐
2‐Butanone (Methyl Ethyl Ketone) ‐‐‐
2‐Chlorotoluene ‐ 2,500 ‐
2‐Hexanone ‐‐‐2‐Phenylbutane (sec‐Butylbenzene) ‐ 12,000 ‐ 4‐Chlorotoluene ‐ 2,300 ‐
4‐Methyl‐2‐Pentanone (Methyl Isobutyl Ketone) ‐‐‐
Acetone ‐‐‐Acrylonitrile ‐‐‐Allyl chloride ‐‐‐
Benzene 0.019 1.4 ‐Bromobenzene ‐‐‐Bromodichloromethane ‐ 1.3 ‐ Bromoform ‐ 86 ‐
Bromomethane (Methyl Bromide) ‐‐‐
Carbon disulfide ‐‐‐
Carbon tetrachloride ‐ 2.9 ‐
Chlorobenzene 2 ‐‐Chlorobromomethane ‐ 4.1 ‐
Chloroethane ‐‐‐Chloroform (Trichloromethane) ‐‐‐
Chloromethane (Methyl Chloride) ‐‐‐
cis‐1,2‐Dichloroethene 4.9 84 ‐
cis‐1,3‐Dichloropropene ‐‐‐
cis‐1,4‐Dichloro‐2‐butene ‐‐‐Cymene (p‐Isopropyltoluene) ‐ 1,600 ‐ Dibromochloromethane ‐‐‐Dibromomethane ‐‐‐Dichlorodifluoromethane (CFC‐12) ‐‐‐ Diisopropyl ether (DIPE) ‐‐‐
Ethylbenzene 7.7 ‐‐Hexachlorobutadiene ‐ 5.3 ‐
Isopropylbenzene (Cumene) ‐‐‐
m,p‐Xylenes 6 ‐‐
Methyl Tert Butyl Ether ‐‐‐
Methylene chloride 0.019 26 ‐
Naphthalene ‐ 6.5 ‐
n‐Butylbenzene ‐‐‐
B29‐19 B29‐20 B29‐20 B29‐21 B29‐22 B29‐22 B29‐23 B29‐23 B29‐24 B29‐24 B29‐19‐5 B29‐20‐1 B29‐20‐2 B29‐21‐1 B29‐22‐010 B29‐22‐050 B29‐23‐010 B29‐23‐050 B29‐24‐010 B29‐24‐050 6/29/2016 6/27/2016 6/27/2016 6/28/2016 1/10/2020 1/10/2020 1/10/2020 1/10/2020 1/14/2020 1/14/2020

4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 1.5 ‐ 2 (ft) 0.5 ‐ 1 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) < 0.00057 < 0.00053 < 0.00054 0.0018 J < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00018 < 0.00017 < 0.00017 < 0.00018 < 0.0017 < 0.0017 < 0.0017 < 0.0017 < 0.0017 < 0.0017 < 0.00026 < 0.00024 < 0.00025 < 0.00025 < 0.00175 < 0.00175 < 0.00175 < 0.00175 < 0.00175 < 0.00175 ‐‐‐‐‐‐‐‐‐‐
< 0.00023 < 0.00021 < 0.00022 < 0.00022 < 0.00197 < 0.00197 < 0.0394 < 0.00197 < 0.00197 < 0.00197 < 0.00034 < 0.00032 < 0.00033 < 0.00033 < 0.000793 < 0.000793 < 0.000793 < 0.000793 < 0.000793 < 0.000793 < 0.0039 < 0.0036 < 0.0037 < 0.0038 0.0339 0.0355 0.0308 0.0304 0.0197 J 0.0229 J < 0.00024 < 0.00022 < 0.00023 < 0.00023 < 0.00092 < 0.00092 < 0.00092 < 0.00092 < 0.00092 < 0.00092 < 0.0018 < 0.0017 < 0.0017 < 0.0018 ‐‐‐‐‐‐
< 0.0006 < 0.00056 < 0.00057 < 0.00058 < 0.00253 < 0.00253 < 0.00253 < 0.00253 < 0.00253 < 0.00253 < 0.00022 < 0.00021 < 0.00021 < 0.00021 < 0.00113 < 0.00113 < 0.00113 < 0.00113 < 0.00113 < 0.00113 < 0.0045 < 0.0042 < 0.0043 < 0.0043 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.0065 < 0.006 < 0.0061 0.015 J < 0.0137 < 0.0137 < 0.0137 < 0.0137 < 0.0137 < 0.0137 ‐‐‐‐ < 0.0019 < 0.0019 < 0.0019 < 0.0019 < 0.0019 < 0.0019 ‐‐‐‐‐‐‐‐‐‐
< 0.00013 < 0.00013 < 0.00013 < 0.00013 < 0.0004 < 0.0004 < 0.0004 < 0.0004 < 0.0004 < 0.0004 < 0.00022 < 0.0002 < 0.00021 < 0.00021 < 0.00105 < 0.00105 < 0.00105 < 0.00105 < 0.00105 < 0.00105 < 0.00024 < 0.00022 < 0.00023 < 0.00023 < 0.000788 < 0.000788 < 0.000788 < 0.000788 < 0.000788 < 0.000788 < 0.00082 < 0.00077 < 0.00078 < 0.0008 < 0.00598 < 0.00598 < 0.00598 < 0.00598 < 0.00598 < 0.00598 < 0.0098 < 0.0091 < 0.0093 < 0.0095 < 0.0037 < 0.0037 < 0.0037 < 0.0037 < 0.0037 < 0.0037 < 0.00032 < 0.0003 < 0.0003 < 0.00031 ‐‐‐‐‐‐
< 0.00029 < 0.00027 < 0.00028 < 0.00028 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00023 < 0.00022 < 0.00022 < 0.00022 < 0.000573 < 0.000573 < 0.000573 < 0.000573 < 0.000573 < 0.000573 < 0.00072 < 0.00067 < 0.00068 < 0.00069 ‐‐‐‐‐‐
< 0.0015 < 0.0014 < 0.0015 < 0.0015 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00025 < 0.00023 < 0.00024 < 0.00024 0.00425 < 0.000415 0.0102 < 0.000415 0.019 J 0.00255 J < 0.00032 < 0.00029 < 0.0003 < 0.00031 < 0.00139 < 0.00139 < 0.00139 < 0.00139 < 0.00139 < 0.00139 < 0.00029 < 0.00027 < 0.00028 < 0.00028 < 0.00069 < 0.00069 0.00153 J < 0.00069 < 0.00069 < 0.00069 < 0.00026 < 0.00025 < 0.00025 < 0.00026 < 0.000678 < 0.000678 < 0.000678 < 0.000678 < 0.000678 < 0.000678 ‐‐‐‐‐‐‐‐‐‐
< 0.00065 < 0.00061 < 0.00062 0.00066 J < 0.00233 < 0.00233 < 0.00233 < 0.00233 < 0.00233 < 0.00233 < 0.00059 < 0.00055 < 0.00056 < 0.00057 < 0.00045 < 0.00045 < 0.00045 < 0.00045 < 0.00045 < 0.00045 < 0.0008 < 0.00075 < 0.00076 < 0.00078 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.00046 < 0.00043 < 0.00044 < 0.00045 < 0.000818 < 0.000818 < 0.000818 < 0.000818 < 0.000818 < 0.000818 ‐‐‐‐ < 0.00035 < 0.00035 < 0.00035 < 0.00035 < 0.00035 < 0.00035 < 0.00016 < 0.00015 < 0.00015 < 0.00015 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 ‐‐‐‐ < 0.0127 < 0.0127 < 0.0127 < 0.0127 < 0.0127 < 0.0127 < 0.00057 < 0.00053 < 0.00054 < 0.00055 < 0.000863 < 0.000863 < 0.000863 < 0.000863 < 0.000863 < 0.000863 < 0.00028 < 0.00026 < 0.00026 < 0.00027 ‐‐‐‐‐‐
< 0.00031 < 0.00029 < 0.00029 < 0.0003 < 0.000295 < 0.000295 < 0.000295 < 0.000295 < 0.000295 < 0.000295 < 0.0014 < 0.0013 < 0.0013 < 0.0013 < 0.00664 < 0.00664 < 0.00664 < 0.00664 < 0.00664 < 0.00664 < 0.00084 < 0.00079 < 0.0008 < 0.00082 < 0.00312 < 0.00312 < 0.00312 < 0.00312 < 0.00312 < 0.00312 < 0.00016 < 0.00015 < 0.00015 0.00067 J < 0.00384 < 0.00384 < 0.00384 < 0.00384 < 0.00384 < 0.00384 HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 42 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
VOCs (mg/kg) ‐
n‐Propylbenzene ‐‐‐
o‐Xylene 6 ‐‐
PHC as Gasoline 5,400 97 ‐
Styrene ‐ 32,000 ‐
Tert‐Amyl Methyl Ether (TAME) ‐‐‐
Tert‐Butyl Alcohol (tert‐Butanol) ‐‐‐
Tert‐Butyl Ethyl Ether (ETBE) ‐‐‐tert‐Butylbenzene ‐‐‐
Tetrachloroethene 2.1 2.7 ‐
Toluene 0.44 5,300 ‐trans‐1,2‐Dichloroethene 0.17 600 ‐ trans‐1,3‐Dichloropropene ‐‐‐
Trichloroethene 27 63 2,040
Trichlorofluoromethane (CFC‐11) ‐ 5,400 ‐
Trifluorotrichloroethane (Freon 113) 6.4 ‐‐
Vinyl acetate ‐‐‐
Vinyl chloride 13 0.15 ‐
Xylene (total) 6 ‐‐
Notes and Abbreviations:

BOLD = concentration detected at or above
reported detection limit.

No COPC in soil exceeded its Total Threshold Limit Concentration (TTLC). < = analyte not detected above the indicated
reporting limit.B = compound detected in the associated blank J = estimated concentration.‐ = not analyzed or not applicable. mg/kg = milligrams per kilogram.
bgs = below ground surface.

GPL: Groundwater Protection Level (Haley & Aldrich 2014a, 2014b) TTLC: Total Threshold Limit Concentration, CCR Title 22 Section 66261.24 1 Cancer Endpoint. If there is no Cancer Endpoint, the Noncancer Endpoint is noted.2 Site background3 U.S. EPA Region 9 Remediation Screening Level DTSC‐SL: Commercial/Industrial Department of Toxic Substances Control‐Screening Level, HHRA Note 3, June 2020.

B29‐19 B29‐20 B29‐20 B29‐21 B29‐22 B29‐22 B29‐23 B29‐23 B29‐24 B29‐24 B29‐19‐5 B29‐20‐1 B29‐20‐2 B29‐21‐1 B29‐22‐010 B29‐22‐050 B29‐23‐010 B29‐23‐050 B29‐24‐010 B29‐24‐050 6/29/2016 6/27/2016 6/27/2016 6/28/2016 1/10/2020 1/10/2020 1/10/2020 1/10/2020 1/14/2020 1/14/2020

4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 1.5 ‐ 2 (ft) 0.5 ‐ 1 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) < 0.00052 < 0.00048 < 0.00049 < 0.0005 < 0.00118 < 0.00118 < 0.00118 < 0.00118 < 0.00118 < 0.00118 < 0.00058 < 0.00054 < 0.00055 < 0.00056 ‐‐‐‐‐‐
‐‐‐‐‐‐‐‐‐‐
< 0.00063 < 0.00058 < 0.0006 < 0.00061 < 0.00273 < 0.00273 < 0.00273 < 0.00273 < 0.00273 < 0.00273 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
< 0.00016 < 0.00015 < 0.00015 < 0.00015 < 0.00155 < 0.00155 < 0.00155 < 0.00155 < 0.00155 < 0.00155 < 0.00022 < 0.0002 < 0.00021 0.00054 J < 0.0007 < 0.0007 0.00117 J < 0.0007 0.00163 J < 0.0007 < 0.00053 < 0.0005 < 0.00051 < 0.00052 < 0.00125 < 0.00125 < 0.00125 < 0.00125 < 0.00125 < 0.00125 < 0.00052 < 0.00049 < 0.0005 < 0.00051 < 0.00143 < 0.00143 0.0018 J < 0.00143 < 0.00143 < 0.00143 < 0.00063 < 0.00058 < 0.0006 < 0.00061 < 0.00153 < 0.00153 < 0.0306 < 0.00153 < 0.00153 < 0.00153 < 0.00031 < 0.00029 < 0.0003 0.00079 J 1.33 0.0474 37.8 0.0502 7.83 0.0925 < 0.00039 < 0.00036 < 0.00037 < 0.00038 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.00037 < 0.00034 < 0.00035 < 0.00035 < 0.000675 < 0.000675 < 0.000675 < 0.000675 < 0.000675 < 0.000675 < 0.0049 < 0.0046 < 0.0047 < 0.0048 ‐‐‐‐‐‐
< 0.00052 < 0.00049 < 0.0005 < 0.00051 < 0.000683 < 0.000683 < 0.000683 < 0.000683 < 0.000683 < 0.000683 ‐‐‐‐ < 0.00478 < 0.00478 < 0.00478 < 0.00478 < 0.00478 < 0.00478 HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 43 of 102 ends

LocationSample Name
Sample Date
Sample Depth
Metals (mg/kg) GPL DTSC TTLC
Antimony 7.84 ‐ 500
Arsenic 24.3 0.36/82 500
Barium 43000 ‐ 10,000
Beryllium ‐ 6,900 75
Cadmium 970 4,000 100Chromium 660 ‐ 2,500
Chromium VI (Hexavalent) 30 6.2 500
Cobalt ‐‐ 8,000
Copper 5600 ‐ 2,500
Lead 232 320 1,000Mercury 2.1 4.4 20Molybdenum ‐‐ 3,500 Nickel 3400 64,000 2,000Selenium ‐‐ 100Silver ‐‐ 500Thallium ‐‐ 700Vanadium ‐‐ 2,400 Zinc ‐‐ 5,000
‐
PCBs (mg/kg)
Aroclor‐1016 (PCB‐1016) ‐ 17 ‐
Aroclor‐1221 (PCB‐1221) ‐ 0.53 ‐
Aroclor‐1232 (PCB‐1232) ‐ 0.49 ‐
Aroclor‐1242 (PCB‐1242) ‐ 0.58 ‐
Aroclor‐1248 (PCB‐1248) ‐ 0.58 ‐
Aroclor‐1254 (PCB‐1254) ‐ 0.59 ‐
Aroclor‐1260 (PCB‐1260) ‐ 0.6 ‐
Aroclor‐1262 (PCB‐1262) ‐‐‐
Aroclor‐1268 (PCB‐1268) ‐‐‐
Total PCBs 130 0.58 50
‐
PEST (mg/kg)
4,4'‐DDD ‐ 6.2 1.0
4,4'‐DDE ‐ 9.3 1.04,4'‐DDT ‐ 7.1 1.0
Aldrin ‐ 0.18 1.4
alpha‐BHC ‐ 0.24 ‐
beta‐BHC ‐ 0.82 ‐
Chlordane ‐ 6.1 2.5
delta‐BHC ‐‐‐
Dieldrin ‐ 0.093 8.0
Endosulfan I ‐ 6,000 ‐
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
B29‐25 B29‐25 B29‐26 B29‐26 B29‐27 B29‐27 B29‐28 B29‐28 B29‐29 B29‐29 B29‐25‐010 B29‐25‐050 B29‐26‐10 B29‐26‐050 B29‐27‐010 B29‐27‐050 B29‐28‐010 B29‐28‐050 B29‐29‐010 B29‐29‐050 1/9/2020 1/9/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020

0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 44 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
PEST (mg/kg) ‐
Endosulfan II ‐ 6,000 ‐
Endosulfan sulfate ‐ 11,000 ‐
Endrin ‐ 160 0.2
Endrin aldehyde ‐‐‐
Endrin ketone ‐‐‐
gamma‐BHC (Lindane) ‐ 2 4.0
Heptachlor ‐ 0.63 4.7
Heptachlor epoxide ‐ 0.33 ‐
Methoxychlor ‐ 2600 100
Toxaphene ‐ 1.2 5
‐
SVOCs (mg/kg)
1,2,4‐Trichlorobenzene 0.818 35 ‐
1,2‐Dichlorobenzene 28 ‐‐
1,3‐Dichlorobenzene ‐‐‐
1,4‐Dichlorobenzene 0.23 ‐‐
1‐Methylnaphthalene ‐ 30 ‐
2,2'‐oxybis(2‐Chloropropane) ‐‐‐
2,4,5‐Trichlorophenol ‐ 53,000 ‐
2,4,6‐Trichlorophenol ‐ 21 ‐
2,4‐Dichlorophenol ‐ 1,600 ‐
2,4‐Dimethylphenol ‐ 11,000 ‐
2,4‐Dinitrophenol ‐ 1,100 ‐
2,4‐Dinitrotoluene ‐‐‐
2,6‐Dichlorophenol ‐ 4.7 ‐
2,6‐Dinitrotoluene ‐ 0.99 ‐
2‐Chloronaphthalene ‐ 27,000 ‐
2‐Chlorophenol ‐ 3,900 ‐
2‐Methylnaphthalene ‐ 1,300 ‐
2‐Methylphenol (o‐Cresol) ‐ 26,000 ‐
2‐Nitroaniline ‐ 5,200 ‐
2‐Nitrophenol ‐‐‐3,3'‐Dichlorobenzidine ‐ 0.93 ‐
3‐Nitroaniline ‐‐‐
4,6‐Dinitro‐2‐methylphenol ‐ 42 ‐
4‐Bromophenyl phenyl ether ‐‐‐
4‐Chloro‐3‐methylphenol ‐ 53,000 ‐
4‐Chloroaniline ‐ 7.4 ‐
4‐Chlorophenyl phenyl ether ‐‐‐
4‐Nitroaniline ‐ 74 ‐
4‐Nitrophenol ‐‐‐
B29‐25 B29‐25 B29‐26 B29‐26 B29‐27 B29‐27 B29‐28 B29‐28 B29‐29 B29‐29 B29‐25‐010 B29‐25‐050 B29‐26‐10 B29‐26‐050 B29‐27‐010 B29‐27‐050 B29‐28‐010 B29‐28‐050 B29‐29‐010 B29‐29‐050 1/9/2020 1/9/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020

0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 45 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
SVOCs (mg/kg) ‐
Acenaphthene ‐ 23,000 ‐
Acenaphthylene ‐‐‐Aniline ‐ 260 ‐
Anthracene ‐ 130,000 ‐
Azobenzene ‐‐‐Benzidine ‐ 0.003 ‐
Benzo(a)anthracene ‐ 12 ‐
Benzo(a)pyrene 14 1.3 ‐Benzo(b)fluoranthene ‐ 13 ‐
Benzo(g,h,i)perylene ‐‐‐Benzo(k)fluoranthene ‐ 210,000 ‐ Benzoic acid ‐ 2,100,000 ‐
Benzyl Alcohol ‐ 53,000 ‐
bis(2‐Chloroethoxy)methane ‐ 1,600 ‐
bis(2‐Chloroethyl)ether ‐ 0.47 ‐
bis(2‐Ethylhexyl)phthalate 57 110 ‐
Butyl benzylphthalate ‐ 780 ‐
Chrysene ‐ 1,300 ‐
Dibenz(a,h)anthracene ‐ 0.31 ‐
Dibenzofuran ‐ 650 ‐
Diethyl phthalate ‐ 420,000 ‐Dimethyl phthalate ‐‐‐
Di‐n‐butylphthalate ‐ 53,000 ‐
Di‐n‐octyl phthalate ‐ 5,300 ‐Fluoranthene ‐ 18,000 ‐
Fluorene ‐ 17,000 ‐
Hexachlorobenzene ‐ 0.86 ‐
Hexachlorobutadiene ‐ 5.3 ‐
Hexachlorocyclopentadiene ‐‐‐Hexachloroethane ‐‐‐Indeno(1,2,3‐cd)pyrene ‐ 13 ‐ Isophorone ‐ 1,600 ‐
m,p‐Cresols ‐‐‐
Naphthalene ‐ 6.5 ‐
Nitrobenzene ‐‐‐N‐Nitrosodimethylamine ‐ 0.53 ‐
N‐Nitrosodi‐n‐propylamine ‐ 0.21 ‐
N‐Nitrosodiphenylamine ‐ 300 ‐
Pentachlorophenol 0.0717 2 ‐Phenanthrene ‐‐‐Phenol ‐ 160,000 ‐ Pyrene ‐ 13,000 ‐
Pyridine ‐ 530 ‐
B29‐25 B29‐25 B29‐26 B29‐26 B29‐27 B29‐27 B29‐28 B29‐28 B29‐29 B29‐29 B29‐25‐010 B29‐25‐050 B29‐26‐10 B29‐26‐050 B29‐27‐010 B29‐27‐050 B29‐28‐010 B29‐28‐050 B29‐29‐010 B29‐29‐050 1/9/2020 1/9/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020

0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 46 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
TPH (mg/kg)
PHC as Gasoline 5,400 97 ‐
Total Petroleum Hydrocarbons (C6) ‐‐‐
Total Petroleum Hydrocarbons (C7) ‐‐‐
Total Petroleum Hydrocarbons (C8) ‐‐‐
Total Petroleum Hydrocarbons (C9‐C10) ‐‐‐
Total Petroleum Hydrocarbons (C11‐C12) ‐‐‐
Total Petroleum Hydrocarbons (C13‐C14) ‐‐‐
Total Petroleum Hydrocarbons (C15‐C16) ‐‐‐
Total Petroleum Hydrocarbons (C17‐C18) ‐‐‐
Total Petroleum Hydrocarbons (C19‐C20) ‐‐‐
Total Petroleum Hydrocarbons (C21‐C22) ‐‐‐
Total Petroleum Hydrocarbons (C23‐C24) ‐‐‐
Total Petroleum Hydrocarbons (C25‐C28) ‐‐‐
Total Petroleum Hydrocarbons (C29‐C32) ‐‐‐
Total Petroleum Hydrocarbons (C33‐C36) ‐‐‐
Total Petroleum Hydrocarbons (C37‐C40) ‐‐‐
Total Petroleum Hydrocarbons (C41‐C44) ‐‐‐
Total Petroleum Hydrocarbons (C6‐C44) ‐‐‐
Total Petroleum Hydrocarbons (C10‐C28) Diesel ‐‐‐
Total Petroleum Hydrocarbons (C10‐C28) DRO ‐‐‐
Total Petroleum Hydrocarbons (>C28‐C44) ‐‐‐
Gasoline C6‐C8 (calculated) 2,900 ‐‐
Diesel C9‐C16 (calculated) 5,400 97 ‐
Oil C17‐C32 (calculated) 7,300 2,400 ‐
‐
VOCs (mg/kg)
1,1,1,2‐Tetrachloroethane ‐ 8.8 ‐
1,1,1‐Trichloroethane 1.7 7,200 ‐
1,1,2,2‐Tetrachloroethane ‐ 2.7 ‐
1,1,2‐Trichloroethane 0.04 ‐‐
1,1‐Dichloroethane 0.56 16 ‐
1,1‐Dichloroethene 0.071 350 ‐
1,1‐Dichloropropene ‐‐‐
1,2,3‐Trichlorobenzene ‐ 300 ‐
1,2,3‐Trichloropropane ‐ 0.021 ‐
1,2,3‐Trimethylbenzene ‐‐‐
1,2,4‐Trichlorobenzene 0.818 35 ‐
1,2,4‐Trimethylbenzene ‐‐‐
1,2‐Dibromo‐3‐chloropropane (DBCP) ‐ 0.057 ‐
1,2‐Dibromoethane (Ethylene Dibromide) ‐ 0.16 ‐
1,2‐Dichlorobenzene 28 ‐‐
1,2‐Dichloroethane 0.0028 ‐‐
1,2‐Dichloropropane ‐‐‐
B29‐25 B29‐25 B29‐26 B29‐26 B29‐27 B29‐27 B29‐28 B29‐28 B29‐29 B29‐29 B29‐25‐010 B29‐25‐050 B29‐26‐10 B29‐26‐050 B29‐27‐010 B29‐27‐050 B29‐28‐010 B29‐28‐050 B29‐29‐010 B29‐29‐050 1/9/2020 1/9/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020

0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ < 0.0005 < 0.000505 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.000275 < 0.000278 < 0.000275 < 0.000275 < 0.000275 < 0.000275 < 0.000275 < 0.000275 < 0.000275 < 0.000275 < 0.00039 < 0.000394 < 0.00039 < 0.00039 < 0.00039 < 0.00039 < 0.00039 < 0.00039 < 0.00039 < 0.00039 < 0.000883 < 0.000892 < 0.000883 < 0.000883 < 0.000883 < 0.000883 < 0.000883 < 0.000883 < 0.000883 < 0.000883 < 0.000575 < 0.000581 < 0.000575 < 0.000575 < 0.000575 < 0.000575 < 0.000575 < 0.000575 < 0.000575 < 0.000575 < 0.0005 < 0.000505 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005< 0.0007 < 0.000707 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.000625 < 0.000631 < 0.000625 < 0.000625 < 0.000625 < 0.000625 < 0.000625 < 0.000625 < 0.000625 < 0.000625 < 0.0051 < 0.00515 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.00115 < 0.00116 0.00125 J < 0.00115 < 0.00115 < 0.00115 < 0.00115 < 0.00115 < 0.00115 < 0.00115 < 0.00482 < 0.00487 < 0.00482 < 0.00482 < 0.00482 < 0.00482 < 0.00482 < 0.00482 < 0.00482 < 0.00482 < 0.00116 < 0.00117 0.00303 J < 0.00116 < 0.00116 < 0.00116 0.00155 J < 0.00116 < 0.00116 < 0.00116 < 0.0051 < 0.00515 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.000525 < 0.00053 < 0.000525 < 0.000525 < 0.000525 < 0.000525 < 0.000525 < 0.000525 < 0.000525 < 0.000525 < 0.00145 < 0.00146 < 0.00145 < 0.00145 < 0.00145 < 0.00145 < 0.00145 < 0.00145 < 0.00145 < 0.00145 < 0.000475 < 0.00048 < 0.000475 < 0.000475 < 0.000475 < 0.000475 < 0.000475 < 0.000475 < 0.000475 < 0.000475 < 0.00127 < 0.00128 < 0.00127 < 0.00127 < 0.00127 < 0.00127 < 0.00127 < 0.00127 < 0.00127 < 0.00127 HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 47 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
VOCs (mg/kg) ‐
1,3,5‐Trimethylbenzene ‐‐‐
1,3‐Dichlorobenzene ‐‐‐
1,3‐Dichloropropane ‐ 2,200 ‐
1,4‐Dichloro‐2‐butene ‐‐‐
1,4‐Dichlorobenzene 0.23 ‐‐
2,2‐Dichloropropane ‐‐‐
2‐Butanone (Methyl Ethyl Ketone) ‐‐‐
2‐Chlorotoluene ‐ 2,500 ‐
2‐Hexanone ‐‐‐2‐Phenylbutane (sec‐Butylbenzene) ‐ 12,000 ‐ 4‐Chlorotoluene ‐ 2,300 ‐
4‐Methyl‐2‐Pentanone (Methyl Isobutyl Ketone) ‐‐‐
Acetone ‐‐‐Acrylonitrile ‐‐‐Allyl chloride ‐‐‐
Benzene 0.019 1.4 ‐Bromobenzene ‐‐‐Bromodichloromethane ‐ 1.3 ‐ Bromoform ‐ 86 ‐
Bromomethane (Methyl Bromide) ‐‐‐
Carbon disulfide ‐‐‐
Carbon tetrachloride ‐ 2.9 ‐
Chlorobenzene 2 ‐‐Chlorobromomethane ‐ 4.1 ‐
Chloroethane ‐‐‐Chloroform (Trichloromethane) ‐‐‐
Chloromethane (Methyl Chloride) ‐‐‐
cis‐1,2‐Dichloroethene 4.9 84 ‐
cis‐1,3‐Dichloropropene ‐‐‐
cis‐1,4‐Dichloro‐2‐butene ‐‐‐Cymene (p‐Isopropyltoluene) ‐ 1,600 ‐ Dibromochloromethane ‐‐‐Dibromomethane ‐‐‐Dichlorodifluoromethane (CFC‐12) ‐‐‐ Diisopropyl ether (DIPE) ‐‐‐
Ethylbenzene 7.7 ‐‐Hexachlorobutadiene ‐ 5.3 ‐
Isopropylbenzene (Cumene) ‐‐‐
m,p‐Xylenes 6 ‐‐
Methyl Tert Butyl Ether ‐‐‐
Methylene chloride 0.019 26 ‐
Naphthalene ‐ 6.5 ‐
n‐Butylbenzene ‐‐‐
B29‐25 B29‐25 B29‐26 B29‐26 B29‐27 B29‐27 B29‐28 B29‐28 B29‐29 B29‐29 B29‐25‐010 B29‐25‐050 B29‐26‐10 B29‐26‐050 B29‐27‐010 B29‐27‐050 B29‐28‐010 B29‐28‐050 B29‐29‐010 B29‐29‐050 1/9/2020 1/9/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020

0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) < 0.00108 < 0.00109 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.0017 < 0.00172 < 0.0017 < 0.0017 < 0.0017 < 0.0017 < 0.0017 < 0.0017 < 0.0017 < 0.0017 < 0.00175 < 0.00177 < 0.00175 < 0.00175 < 0.00175 < 0.00175 < 0.00175 < 0.00175 < 0.00175 < 0.00175 ‐‐‐‐‐‐‐‐‐‐
< 0.00197 < 0.00199 < 0.00197 < 0.00197 < 0.00197 < 0.00197 < 0.00197 < 0.00197 < 0.00197 < 0.00197 < 0.000793 < 0.000801 < 0.000793 < 0.000793 < 0.000793 < 0.000793 < 0.000793 < 0.000793 < 0.000793 < 0.000793

0.037 0.0455 0.029 0.0235 J 0.0235 J 0.0267 0.0264 0.0227 J 0.0273 0.0303 < 0.00092 < 0.000929 < 0.00092 < 0.00092 < 0.00092 < 0.00092 < 0.00092 < 0.00092 < 0.00092 < 0.00092 ‐‐‐‐‐‐‐‐‐‐
< 0.00253 < 0.00256 < 0.00253 < 0.00253 < 0.00253 < 0.00253 < 0.00253 < 0.00253 < 0.00253 < 0.00253 < 0.00113 < 0.00114 < 0.00113 < 0.00113 < 0.00113 < 0.00113 < 0.00113 < 0.00113 < 0.00113 < 0.00113 < 0.01 < 0.0101 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.0137 < 0.0138 < 0.0137 < 0.0137 < 0.0137 < 0.0137 < 0.0137 < 0.0137 < 0.0137 < 0.0137 < 0.0019 < 0.00192 < 0.0019 < 0.0019 < 0.0019 < 0.0019 < 0.0019 < 0.0019 < 0.0019 < 0.0019 ‐‐‐‐‐‐‐‐‐‐
< 0.0004 < 0.000404 < 0.0004 < 0.0004 < 0.0004 < 0.0004 0.0004 J < 0.0004 < 0.0004 < 0.0004 < 0.00105 < 0.00106 < 0.00105 < 0.00105 < 0.00105 < 0.00105 < 0.00105 < 0.00105 < 0.00105 < 0.00105 < 0.000788 < 0.000796 < 0.000788 < 0.000788 < 0.000788 < 0.000788 < 0.000788 < 0.000788 < 0.000788 < 0.000788 < 0.00598 < 0.00604 < 0.00598 < 0.00598 < 0.00598 < 0.00598 < 0.00598 < 0.00598 < 0.00598 < 0.00598 < 0.0037 < 0.00374 < 0.0037 < 0.0037 < 0.0037 < 0.0037 < 0.0037 < 0.0037 < 0.0037 < 0.0037 ‐‐‐‐‐‐‐‐‐‐
< 0.00108 < 0.00109 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.000573 < 0.000579 < 0.000573 < 0.000573 < 0.000573 < 0.000573 < 0.000573 < 0.000573 < 0.000573 < 0.000573 ‐‐‐‐‐‐‐‐‐‐
< 0.00108 < 0.00109 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.000415 < 0.000419 0.00333 J 0.00095 J 0.00193 J < 0.000415 0.0155 < 0.000415 < 0.000415 < 0.000415 < 0.00139 < 0.0014 < 0.00139 < 0.00139 < 0.00139 < 0.00139 < 0.00139 < 0.00139 < 0.00139 < 0.00139 < 0.00069 < 0.000697 < 0.00069 < 0.00069 < 0.00069 < 0.00069 < 0.00069 < 0.00069 < 0.00069 < 0.00069 < 0.000678 < 0.000685 < 0.000678 < 0.000678 < 0.000678 < 0.000678 < 0.000678 < 0.000678 < 0.000678 < 0.000678 ‐‐‐‐‐‐‐‐‐‐
< 0.00233 < 0.00235 < 0.00233 < 0.00233 < 0.00233 < 0.00233 < 0.00233 < 0.00233 < 0.00233 < 0.00233 < 0.00045 < 0.000455 < 0.00045 < 0.00045 < 0.00045 < 0.00045 < 0.00045 < 0.00045 < 0.00045 < 0.00045 < 0.001 < 0.00101 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.000818 < 0.000826 < 0.000818 < 0.000818 < 0.000818 < 0.000818 < 0.000818 < 0.000818 < 0.000818 < 0.000818 < 0.00035 < 0.000353 < 0.00035 < 0.00035 < 0.00035 < 0.00035 < 0.00035 < 0.00035 < 0.00035 < 0.00035 < 0.00053 < 0.000535 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.0127 < 0.0128 < 0.0127 < 0.0127 < 0.0127 < 0.0127 < 0.0127 < 0.0127 < 0.0127 < 0.0127 < 0.000863 < 0.000872 < 0.000863 < 0.000863 < 0.000863 < 0.000863 < 0.000863 < 0.000863 < 0.000863 < 0.000863 ‐‐‐‐‐‐‐‐‐‐
< 0.000295 < 0.000298 < 0.000295 < 0.000295 < 0.000295 0.000675 J < 0.000295 < 0.000295 < 0.000295 < 0.000295 < 0.00664 < 0.00671 < 0.00664 < 0.00664 < 0.00664 < 0.00664 < 0.00664 < 0.00664 < 0.00664 0.0104 J < 0.00312 < 0.00315 < 0.00312 < 0.00312 < 0.00312 < 0.00312 < 0.00312 < 0.00312 < 0.00312 < 0.00312 < 0.00384 < 0.00388 < 0.00384 < 0.00384 < 0.00384 < 0.00384 < 0.00384 < 0.00384 < 0.00384 < 0.00384 HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 48 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
VOCs (mg/kg) ‐
n‐Propylbenzene ‐‐‐
o‐Xylene 6 ‐‐
PHC as Gasoline 5,400 97 ‐
Styrene ‐ 32,000 ‐
Tert‐Amyl Methyl Ether (TAME) ‐‐‐
Tert‐Butyl Alcohol (tert‐Butanol) ‐‐‐
Tert‐Butyl Ethyl Ether (ETBE) ‐‐‐tert‐Butylbenzene ‐‐‐
Tetrachloroethene 2.1 2.7 ‐
Toluene 0.44 5,300 ‐trans‐1,2‐Dichloroethene 0.17 600 ‐ trans‐1,3‐Dichloropropene ‐‐‐
Trichloroethene 27 63 2,040
Trichlorofluoromethane (CFC‐11) ‐ 5,400 ‐
Trifluorotrichloroethane (Freon 113) 6.4 ‐‐
Vinyl acetate ‐‐‐
Vinyl chloride 13 0.15 ‐
Xylene (total) 6 ‐‐
Notes and Abbreviations:

BOLD = concentration detected at or above
reported detection limit.

No COPC in soil exceeded its Total Threshold Limit Concentration (TTLC). < = analyte not detected above the indicated
reporting limit.B = compound detected in the associated blank J = estimated concentration.‐ = not analyzed or not applicable. mg/kg = milligrams per kilogram.
bgs = below ground surface.

GPL: Groundwater Protection Level (Haley & Aldrich 2014a, 2014b) TTLC: Total Threshold Limit Concentration, CCR Title 22 Section 66261.24 1 Cancer Endpoint. If there is no Cancer Endpoint, the Noncancer Endpoint is noted.2 Site background3 U.S. EPA Region 9 Remediation Screening Level DTSC‐SL: Commercial/Industrial Department of Toxic Substances Control‐Screening Level, HHRA Note 3, June 2020.

B29‐25 B29‐25 B29‐26 B29‐26 B29‐27 B29‐27 B29‐28 B29‐28 B29‐29 B29‐29 B29‐25‐010 B29‐25‐050 B29‐26‐10 B29‐26‐050 B29‐27‐010 B29‐27‐050 B29‐28‐010 B29‐28‐050 B29‐29‐010 B29‐29‐050 1/9/2020 1/9/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020

0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) < 0.00118 < 0.00119 < 0.00118 < 0.00118 < 0.00118 < 0.00118 < 0.00118 < 0.00118 < 0.00118 < 0.00118 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
< 0.00273 < 0.00276 < 0.00273 < 0.00273 < 0.00273 < 0.00273 < 0.00273 < 0.00273 < 0.00273 < 0.00273 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
< 0.00155 < 0.00157 < 0.00155 < 0.00155 < 0.00155 < 0.00155 < 0.00155 < 0.00155 < 0.00155 < 0.00155 < 0.0007 < 0.000707 0.0309 < 0.0007 0.0325 < 0.0007 1.26 0.00117 J 0.216 0.0115 < 0.00125 < 0.00126 < 0.00125 < 0.00125 < 0.00125 < 0.00125 < 0.00125 < 0.00125 < 0.00125 < 0.00125 < 0.00143 < 0.00144 < 0.00143 < 0.00143 < 0.00143 < 0.00143 < 0.00143 < 0.00143 < 0.00143 < 0.00143 < 0.00153 < 0.00155 < 0.00153 < 0.00153 < 0.00153 < 0.00153 < 0.00153 < 0.00153 < 0.00153 < 0.00153 < 0.0004 < 0.000404 0.737 0.0186 0.275 0.00273 1.43 0.00228 0.0779 0.00313 < 0.0005 < 0.000505 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.000675 < 0.000682 < 0.000675 < 0.000675 < 0.000675 < 0.000675 < 0.000675 < 0.000675 < 0.000675 < 0.000675 ‐‐‐‐‐‐‐‐‐‐
< 0.000683 < 0.00069 < 0.000683 < 0.000683 < 0.000683 < 0.000683 < 0.000683 < 0.000683 < 0.000683 < 0.000683 < 0.00478 < 0.00483 < 0.00478 < 0.00478 < 0.00478 < 0.00478 < 0.00478 < 0.00478 < 0.00478 < 0.00478 HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 49 of 102 ends

LocationSample Name
Sample Date
Sample Depth
Metals (mg/kg) GPL DTSC TTLC
Antimony 7.84 ‐ 500
Arsenic 24.3 0.36/82 500
Barium 43000 ‐ 10,000
Beryllium ‐ 6,900 75
Cadmium 970 4,000 100Chromium 660 ‐ 2,500
Chromium VI (Hexavalent) 30 6.2 500
Cobalt ‐‐ 8,000
Copper 5600 ‐ 2,500
Lead 232 320 1,000Mercury 2.1 4.4 20Molybdenum ‐‐ 3,500 Nickel 3400 64,000 2,000Selenium ‐‐ 100Silver ‐‐ 500Thallium ‐‐ 700Vanadium ‐‐ 2,400 Zinc ‐‐ 5,000
‐
PCBs (mg/kg)
Aroclor‐1016 (PCB‐1016) ‐ 17 ‐
Aroclor‐1221 (PCB‐1221) ‐ 0.53 ‐
Aroclor‐1232 (PCB‐1232) ‐ 0.49 ‐
Aroclor‐1242 (PCB‐1242) ‐ 0.58 ‐
Aroclor‐1248 (PCB‐1248) ‐ 0.58 ‐
Aroclor‐1254 (PCB‐1254) ‐ 0.59 ‐
Aroclor‐1260 (PCB‐1260) ‐ 0.6 ‐
Aroclor‐1262 (PCB‐1262) ‐‐‐
Aroclor‐1268 (PCB‐1268) ‐‐‐
Total PCBs 130 0.58 50
‐
PEST (mg/kg)
4,4'‐DDD ‐ 6.2 1.0
4,4'‐DDE ‐ 9.3 1.04,4'‐DDT ‐ 7.1 1.0
Aldrin ‐ 0.18 1.4
alpha‐BHC ‐ 0.24 ‐
beta‐BHC ‐ 0.82 ‐
Chlordane ‐ 6.1 2.5
delta‐BHC ‐‐‐
Dieldrin ‐ 0.093 8.0
Endosulfan I ‐ 6,000 ‐
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
B29‐30 B29‐30 B29‐31 B29‐31 B29‐32A B29‐32A B29‐32B B29‐32B B29‐32C B29‐32C B29‐30‐010 B29‐30‐050 B29‐31‐010 B29‐31‐050 B29‐32A‐010 B29‐32A‐050 B29‐32B‐010 B29‐32B‐050 B29‐32C‐010 B29‐32C‐050 1/9/2020 1/9/2020 1/9/2020 1/9/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020

0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ < 0.0035 < 0.0035 < 0.0035 < 0.0035 < 0.0035 < 0.0035 ‐‐‐‐ < 0.00537 < 0.00537 < 0.00537 < 0.00537 < 0.00537 < 0.00537 ‐‐‐‐ < 0.00417 < 0.00417 < 0.00417 < 0.00417 < 0.00417 < 0.00417 ‐‐‐‐ < 0.00318 < 0.00318 < 0.00318 < 0.00318 < 0.00318 < 0.00318 ‐‐‐‐ < 0.00315 < 0.00315 < 0.00315 < 0.00315 < 0.00315 < 0.00315 ‐‐‐‐ < 0.00472 < 0.00472 < 0.00472 < 0.00472 < 0.00472 < 0.00472‐‐‐‐ < 0.00494 < 0.00494 < 0.00494 < 0.00494 < 0.00494 < 0.00494 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ < 0.00537 < 0.00537 < 0.00537 < 0.00537 < 0.00537 < 0.00537‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 50 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
PEST (mg/kg) ‐
Endosulfan II ‐ 6,000 ‐
Endosulfan sulfate ‐ 11,000 ‐
Endrin ‐ 160 0.2
Endrin aldehyde ‐‐‐
Endrin ketone ‐‐‐
gamma‐BHC (Lindane) ‐ 2 4.0
Heptachlor ‐ 0.63 4.7
Heptachlor epoxide ‐ 0.33 ‐
Methoxychlor ‐ 2600 100
Toxaphene ‐ 1.2 5
‐
SVOCs (mg/kg)
1,2,4‐Trichlorobenzene 0.818 35 ‐
1,2‐Dichlorobenzene 28 ‐‐
1,3‐Dichlorobenzene ‐‐‐
1,4‐Dichlorobenzene 0.23 ‐‐
1‐Methylnaphthalene ‐ 30 ‐
2,2'‐oxybis(2‐Chloropropane) ‐‐‐
2,4,5‐Trichlorophenol ‐ 53,000 ‐
2,4,6‐Trichlorophenol ‐ 21 ‐
2,4‐Dichlorophenol ‐ 1,600 ‐
2,4‐Dimethylphenol ‐ 11,000 ‐
2,4‐Dinitrophenol ‐ 1,100 ‐
2,4‐Dinitrotoluene ‐‐‐
2,6‐Dichlorophenol ‐ 4.7 ‐
2,6‐Dinitrotoluene ‐ 0.99 ‐
2‐Chloronaphthalene ‐ 27,000 ‐
2‐Chlorophenol ‐ 3,900 ‐
2‐Methylnaphthalene ‐ 1,300 ‐
2‐Methylphenol (o‐Cresol) ‐ 26,000 ‐
2‐Nitroaniline ‐ 5,200 ‐
2‐Nitrophenol ‐‐‐3,3'‐Dichlorobenzidine ‐ 0.93 ‐
3‐Nitroaniline ‐‐‐
4,6‐Dinitro‐2‐methylphenol ‐ 42 ‐
4‐Bromophenyl phenyl ether ‐‐‐
4‐Chloro‐3‐methylphenol ‐ 53,000 ‐
4‐Chloroaniline ‐ 7.4 ‐
4‐Chlorophenyl phenyl ether ‐‐‐
4‐Nitroaniline ‐ 74 ‐
4‐Nitrophenol ‐‐‐
B29‐30 B29‐30 B29‐31 B29‐31 B29‐32A B29‐32A B29‐32B B29‐32B B29‐32C B29‐32C B29‐30‐010 B29‐30‐050 B29‐31‐010 B29‐31‐050 B29‐32A‐010 B29‐32A‐050 B29‐32B‐010 B29‐32B‐050 B29‐32C‐010 B29‐32C‐050 1/9/2020 1/9/2020 1/9/2020 1/9/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020

0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 51 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
SVOCs (mg/kg) ‐
Acenaphthene ‐ 23,000 ‐
Acenaphthylene ‐‐‐Aniline ‐ 260 ‐
Anthracene ‐ 130,000 ‐
Azobenzene ‐‐‐Benzidine ‐ 0.003 ‐
Benzo(a)anthracene ‐ 12 ‐
Benzo(a)pyrene 14 1.3 ‐Benzo(b)fluoranthene ‐ 13 ‐
Benzo(g,h,i)perylene ‐‐‐Benzo(k)fluoranthene ‐ 210,000 ‐ Benzoic acid ‐ 2,100,000 ‐
Benzyl Alcohol ‐ 53,000 ‐
bis(2‐Chloroethoxy)methane ‐ 1,600 ‐
bis(2‐Chloroethyl)ether ‐ 0.47 ‐
bis(2‐Ethylhexyl)phthalate 57 110 ‐
Butyl benzylphthalate ‐ 780 ‐
Chrysene ‐ 1,300 ‐
Dibenz(a,h)anthracene ‐ 0.31 ‐
Dibenzofuran ‐ 650 ‐
Diethyl phthalate ‐ 420,000 ‐Dimethyl phthalate ‐‐‐
Di‐n‐butylphthalate ‐ 53,000 ‐
Di‐n‐octyl phthalate ‐ 5,300 ‐Fluoranthene ‐ 18,000 ‐
Fluorene ‐ 17,000 ‐
Hexachlorobenzene ‐ 0.86 ‐
Hexachlorobutadiene ‐ 5.3 ‐
Hexachlorocyclopentadiene ‐‐‐Hexachloroethane ‐‐‐Indeno(1,2,3‐cd)pyrene ‐ 13 ‐ Isophorone ‐ 1,600 ‐
m,p‐Cresols ‐‐‐
Naphthalene ‐ 6.5 ‐
Nitrobenzene ‐‐‐N‐Nitrosodimethylamine ‐ 0.53 ‐
N‐Nitrosodi‐n‐propylamine ‐ 0.21 ‐
N‐Nitrosodiphenylamine ‐ 300 ‐
Pentachlorophenol 0.0717 2 ‐Phenanthrene ‐‐‐Phenol ‐ 160,000 ‐ Pyrene ‐ 13,000 ‐
Pyridine ‐ 530 ‐
B29‐30 B29‐30 B29‐31 B29‐31 B29‐32A B29‐32A B29‐32B B29‐32B B29‐32C B29‐32C B29‐30‐010 B29‐30‐050 B29‐31‐010 B29‐31‐050 B29‐32A‐010 B29‐32A‐050 B29‐32B‐010 B29‐32B‐050 B29‐32C‐010 B29‐32C‐050 1/9/2020 1/9/2020 1/9/2020 1/9/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020

0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 52 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
TPH (mg/kg)
PHC as Gasoline 5,400 97 ‐
Total Petroleum Hydrocarbons (C6) ‐‐‐
Total Petroleum Hydrocarbons (C7) ‐‐‐
Total Petroleum Hydrocarbons (C8) ‐‐‐
Total Petroleum Hydrocarbons (C9‐C10) ‐‐‐
Total Petroleum Hydrocarbons (C11‐C12) ‐‐‐
Total Petroleum Hydrocarbons (C13‐C14) ‐‐‐
Total Petroleum Hydrocarbons (C15‐C16) ‐‐‐
Total Petroleum Hydrocarbons (C17‐C18) ‐‐‐
Total Petroleum Hydrocarbons (C19‐C20) ‐‐‐
Total Petroleum Hydrocarbons (C21‐C22) ‐‐‐
Total Petroleum Hydrocarbons (C23‐C24) ‐‐‐
Total Petroleum Hydrocarbons (C25‐C28) ‐‐‐
Total Petroleum Hydrocarbons (C29‐C32) ‐‐‐
Total Petroleum Hydrocarbons (C33‐C36) ‐‐‐
Total Petroleum Hydrocarbons (C37‐C40) ‐‐‐
Total Petroleum Hydrocarbons (C41‐C44) ‐‐‐
Total Petroleum Hydrocarbons (C6‐C44) ‐‐‐
Total Petroleum Hydrocarbons (C10‐C28) Diesel ‐‐‐
Total Petroleum Hydrocarbons (C10‐C28) DRO ‐‐‐
Total Petroleum Hydrocarbons (>C28‐C44) ‐‐‐
Gasoline C6‐C8 (calculated) 2,900 ‐‐
Diesel C9‐C16 (calculated) 5,400 97 ‐
Oil C17‐C32 (calculated) 7,300 2,400 ‐
‐
VOCs (mg/kg)
1,1,1,2‐Tetrachloroethane ‐ 8.8 ‐
1,1,1‐Trichloroethane 1.7 7,200 ‐
1,1,2,2‐Tetrachloroethane ‐ 2.7 ‐
1,1,2‐Trichloroethane 0.04 ‐‐
1,1‐Dichloroethane 0.56 16 ‐
1,1‐Dichloroethene 0.071 350 ‐
1,1‐Dichloropropene ‐‐‐
1,2,3‐Trichlorobenzene ‐ 300 ‐
1,2,3‐Trichloropropane ‐ 0.021 ‐
1,2,3‐Trimethylbenzene ‐‐‐
1,2,4‐Trichlorobenzene 0.818 35 ‐
1,2,4‐Trimethylbenzene ‐‐‐
1,2‐Dibromo‐3‐chloropropane (DBCP) ‐ 0.057 ‐
1,2‐Dibromoethane (Ethylene Dibromide) ‐ 0.16 ‐
1,2‐Dichlorobenzene 28 ‐‐
1,2‐Dichloroethane 0.0028 ‐‐
1,2‐Dichloropropane ‐‐‐
B29‐30 B29‐30 B29‐31 B29‐31 B29‐32A B29‐32A B29‐32B B29‐32B B29‐32C B29‐32C B29‐30‐010 B29‐30‐050 B29‐31‐010 B29‐31‐050 B29‐32A‐010 B29‐32A‐050 B29‐32B‐010 B29‐32B‐050 B29‐32C‐010 B29‐32C‐050 1/9/2020 1/9/2020 1/9/2020 1/9/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020

0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.000275 < 0.000275 < 0.000275 < 0.000275 < 0.000275 < 0.000275 < 0.000275 < 0.000275 0.000525 J < 0.000275 < 0.00039 < 0.00039 < 0.00039 < 0.00039 < 0.00039 < 0.00039 < 0.00039 < 0.00039 < 0.00039 < 0.00039 < 0.000883 < 0.000883 < 0.000883 < 0.000883 < 0.000883 < 0.000883 < 0.000883 < 0.000883 < 0.000883 < 0.000883 < 0.000575 < 0.000575 < 0.000575 < 0.000575 < 0.000575 < 0.000575 < 0.000575 < 0.000575 < 0.000575 < 0.000575 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.000625 < 0.000625 < 0.000625 < 0.000625 < 0.000625 < 0.000625 < 0.000625 < 0.000625 < 0.000625 < 0.000625 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051

0.00124 J < 0.00115 < 0.00115 < 0.00115 < 0.00115 < 0.00115 < 0.00115 < 0.00115 < 0.00115 < 0.00115 < 0.00482 < 0.00482 < 0.00482 < 0.00482 < 0.00482 < 0.00482 < 0.00482 < 0.00482 < 0.00482 < 0.00482

0.00139 J < 0.00116 < 0.00116 < 0.00116 < 0.00116 < 0.00116 < 0.00116 < 0.00116 < 0.00116 < 0.00116 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.000525 < 0.000525 < 0.000525 < 0.000525 < 0.000525 < 0.000525 < 0.000525 < 0.000525 < 0.000525 < 0.000525 < 0.00145 < 0.00145 < 0.00145 < 0.00145 < 0.00145 < 0.00145 < 0.00145 < 0.00145 < 0.00145 < 0.00145 < 0.000475 < 0.000475 < 0.000475 < 0.000475 < 0.000475 < 0.000475 < 0.000475 < 0.000475 < 0.000475 < 0.000475 < 0.00127 < 0.00127 < 0.00127 < 0.00127 < 0.00127 < 0.00127 < 0.00127 < 0.00127 < 0.00127 < 0.00127 HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 53 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
VOCs (mg/kg) ‐
1,3,5‐Trimethylbenzene ‐‐‐
1,3‐Dichlorobenzene ‐‐‐
1,3‐Dichloropropane ‐ 2,200 ‐
1,4‐Dichloro‐2‐butene ‐‐‐
1,4‐Dichlorobenzene 0.23 ‐‐
2,2‐Dichloropropane ‐‐‐
2‐Butanone (Methyl Ethyl Ketone) ‐‐‐
2‐Chlorotoluene ‐ 2,500 ‐
2‐Hexanone ‐‐‐2‐Phenylbutane (sec‐Butylbenzene) ‐ 12,000 ‐ 4‐Chlorotoluene ‐ 2,300 ‐
4‐Methyl‐2‐Pentanone (Methyl Isobutyl Ketone) ‐‐‐
Acetone ‐‐‐Acrylonitrile ‐‐‐Allyl chloride ‐‐‐
Benzene 0.019 1.4 ‐Bromobenzene ‐‐‐Bromodichloromethane ‐ 1.3 ‐ Bromoform ‐ 86 ‐
Bromomethane (Methyl Bromide) ‐‐‐
Carbon disulfide ‐‐‐
Carbon tetrachloride ‐ 2.9 ‐
Chlorobenzene 2 ‐‐Chlorobromomethane ‐ 4.1 ‐
Chloroethane ‐‐‐Chloroform (Trichloromethane) ‐‐‐
Chloromethane (Methyl Chloride) ‐‐‐
cis‐1,2‐Dichloroethene 4.9 84 ‐
cis‐1,3‐Dichloropropene ‐‐‐
cis‐1,4‐Dichloro‐2‐butene ‐‐‐Cymene (p‐Isopropyltoluene) ‐ 1,600 ‐ Dibromochloromethane ‐‐‐Dibromomethane ‐‐‐Dichlorodifluoromethane (CFC‐12) ‐‐‐ Diisopropyl ether (DIPE) ‐‐‐
Ethylbenzene 7.7 ‐‐Hexachlorobutadiene ‐ 5.3 ‐
Isopropylbenzene (Cumene) ‐‐‐
m,p‐Xylenes 6 ‐‐
Methyl Tert Butyl Ether ‐‐‐
Methylene chloride 0.019 26 ‐
Naphthalene ‐ 6.5 ‐
n‐Butylbenzene ‐‐‐
B29‐30 B29‐30 B29‐31 B29‐31 B29‐32A B29‐32A B29‐32B B29‐32B B29‐32C B29‐32C B29‐30‐010 B29‐30‐050 B29‐31‐010 B29‐31‐050 B29‐32A‐010 B29‐32A‐050 B29‐32B‐010 B29‐32B‐050 B29‐32C‐010 B29‐32C‐050 1/9/2020 1/9/2020 1/9/2020 1/9/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020

0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.0017 < 0.0017 < 0.0017 < 0.0017 < 0.0017 < 0.0017 < 0.0017 < 0.0017 < 0.0017 < 0.0017 < 0.00175 < 0.00175 < 0.00175 < 0.00175 < 0.00175 < 0.00175 < 0.00175 < 0.00175 < 0.00175 < 0.00175 ‐‐‐‐‐‐‐‐‐‐
< 0.00197 < 0.00197 < 0.00197 < 0.00197 < 0.00197 < 0.00197 < 0.00197 < 0.00197 < 0.00197 < 0.00197 < 0.000793 < 0.000793 < 0.000793 < 0.000793 < 0.000793 < 0.000793 < 0.000793 < 0.000793 < 0.000793 < 0.000793

0.0487 0.0481 0.0497 0.0391 0.0183 J 0.0193 J 0.016 J 0.0177 J < 0.0125 0.0158 J < 0.00092 < 0.00092 < 0.00092 < 0.00092 < 0.00092 < 0.00092 < 0.00092 < 0.00092 < 0.00092 < 0.00092 ‐‐‐‐‐‐‐‐‐‐
< 0.00253 < 0.00253 < 0.00253 < 0.00253 < 0.00253 < 0.00253 < 0.00253 < 0.00253 < 0.00253 < 0.00253 < 0.00113 < 0.00113 < 0.00113 < 0.00113 < 0.00113 < 0.00113 < 0.00113 < 0.00113 < 0.00113 < 0.00113 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.0137 < 0.0137 < 0.0137 < 0.0137 < 0.0137 < 0.0137 < 0.0137 < 0.0137 < 0.0137 < 0.0137 < 0.0019 < 0.0019 < 0.0019 < 0.0019 < 0.0019 < 0.0019 < 0.0019 < 0.0019 < 0.0019 < 0.0019 ‐‐‐‐‐‐‐‐‐‐
< 0.0004 < 0.0004 < 0.0004 < 0.0004 < 0.0004 < 0.0004 < 0.0004 < 0.0004 0.000725 J < 0.0004 < 0.00105 < 0.00105 < 0.00105 < 0.00105 < 0.00105 < 0.00105 < 0.00105 < 0.00105 < 0.00105 < 0.00105 < 0.000788 < 0.000788 < 0.000788 < 0.000788 < 0.000788 < 0.000788 < 0.000788 < 0.000788 < 0.000788 < 0.000788 < 0.00598 < 0.00598 < 0.00598 < 0.00598 < 0.00598 < 0.00598 < 0.00598 < 0.00598 < 0.00598 < 0.00598 < 0.0037 < 0.0037 < 0.0037 < 0.0037 < 0.0037 < 0.0037 < 0.0037 < 0.0037 < 0.0037 < 0.0037 ‐‐‐‐‐‐‐‐‐‐
< 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.000573 < 0.000573 < 0.000573 < 0.000573 < 0.000573 < 0.000573 < 0.000573 < 0.000573 < 0.000573 < 0.000573 ‐‐‐‐‐‐‐‐‐‐
< 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108

0.000916 J < 0.000415 < 0.000415 < 0.000415 < 0.000415 < 0.000415 < 0.000415 < 0.000415 < 0.000415 < 0.000415 < 0.00139 < 0.00139 < 0.00139 < 0.00139 < 0.00139 < 0.00139 < 0.00139 < 0.00139 < 0.00139 < 0.00139 < 0.00069 < 0.00069 < 0.00069 < 0.00069 < 0.00069 < 0.00069 < 0.00069 < 0.00069 < 0.00069 < 0.00069 < 0.000678 < 0.000678 < 0.000678 < 0.000678 < 0.000678 < 0.000678 < 0.000678 < 0.000678 < 0.000678 < 0.000678 ‐‐‐‐‐‐‐‐‐‐
< 0.00233 < 0.00233 < 0.00233 < 0.00233 < 0.00233 < 0.00233 < 0.00233 < 0.00233 < 0.00233 < 0.00233 < 0.00045 < 0.00045 < 0.00045 < 0.00045 < 0.00045 < 0.00045 < 0.00045 < 0.00045 < 0.00045 < 0.00045 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.000818 < 0.000818 < 0.000818 < 0.000818 < 0.000818 < 0.000818 < 0.000818 < 0.000818 < 0.000818 < 0.000818 < 0.00035 < 0.00035 < 0.00035 < 0.00035 < 0.00035 < 0.00035 < 0.00035 < 0.00035 < 0.00035 < 0.00035 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.0127 < 0.0127 < 0.0127 < 0.0127 < 0.0127 < 0.0127 < 0.0127 < 0.0127 < 0.0127 < 0.0127 < 0.000863 < 0.000863 < 0.000863 < 0.000863 < 0.000863 < 0.000863 < 0.000863 < 0.000863 < 0.000863 < 0.000863 ‐‐‐‐‐‐‐‐‐‐
< 0.000295 < 0.000295 < 0.000295 < 0.000295 < 0.000295 < 0.000295 < 0.000295 < 0.000295 < 0.000295 < 0.000295 < 0.00664 < 0.00664 < 0.00664 < 0.00664 < 0.00664 0.00953 J < 0.00664 < 0.00664 < 0.00664 0.00913 J < 0.00312 < 0.00312 < 0.00312 < 0.00312 < 0.00312 < 0.00312 < 0.00312 < 0.00312 < 0.00312 < 0.00312 < 0.00384 < 0.00384 < 0.00384 < 0.00384 < 0.00384 < 0.00384 < 0.00384 < 0.00384 < 0.00384 < 0.00384 HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 54 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
VOCs (mg/kg) ‐
n‐Propylbenzene ‐‐‐
o‐Xylene 6 ‐‐
PHC as Gasoline 5,400 97 ‐
Styrene ‐ 32,000 ‐
Tert‐Amyl Methyl Ether (TAME) ‐‐‐
Tert‐Butyl Alcohol (tert‐Butanol) ‐‐‐
Tert‐Butyl Ethyl Ether (ETBE) ‐‐‐tert‐Butylbenzene ‐‐‐
Tetrachloroethene 2.1 2.7 ‐
Toluene 0.44 5,300 ‐trans‐1,2‐Dichloroethene 0.17 600 ‐ trans‐1,3‐Dichloropropene ‐‐‐
Trichloroethene 27 63 2,040
Trichlorofluoromethane (CFC‐11) ‐ 5,400 ‐
Trifluorotrichloroethane (Freon 113) 6.4 ‐‐
Vinyl acetate ‐‐‐
Vinyl chloride 13 0.15 ‐
Xylene (total) 6 ‐‐
Notes and Abbreviations:

BOLD = concentration detected at or above
reported detection limit.

No COPC in soil exceeded its Total Threshold Limit Concentration (TTLC). < = analyte not detected above the indicated
reporting limit.B = compound detected in the associated blank J = estimated concentration.‐ = not analyzed or not applicable. mg/kg = milligrams per kilogram.
bgs = below ground surface.

GPL: Groundwater Protection Level (Haley & Aldrich 2014a, 2014b) TTLC: Total Threshold Limit Concentration, CCR Title 22 Section 66261.24 1 Cancer Endpoint. If there is no Cancer Endpoint, the Noncancer Endpoint is noted.2 Site background3 U.S. EPA Region 9 Remediation Screening Level DTSC‐SL: Commercial/Industrial Department of Toxic Substances Control‐Screening Level, HHRA Note 3, June 2020.

B29‐30 B29‐30 B29‐31 B29‐31 B29‐32A B29‐32A B29‐32B B29‐32B B29‐32C B29‐32C B29‐30‐010 B29‐30‐050 B29‐31‐010 B29‐31‐050 B29‐32A‐010 B29‐32A‐050 B29‐32B‐010 B29‐32B‐050 B29‐32C‐010 B29‐32C‐050 1/9/2020 1/9/2020 1/9/2020 1/9/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020 1/14/2020

0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) < 0.00118 < 0.00118 < 0.00118 < 0.00118 < 0.00118 < 0.00118 < 0.00118 < 0.00118 < 0.00118 < 0.00118 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
< 0.00273 < 0.00273 < 0.00273 < 0.00273 < 0.00273 < 0.00273 < 0.00273 < 0.00273 < 0.00273 < 0.00273 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
< 0.00155 < 0.00155 < 0.00155 < 0.00155 < 0.00155 < 0.00155 < 0.00155 < 0.00155 < 0.00155 < 0.00155 < 0.0007 < 0.0007 < 0.0007 < 0.0007 0.0117 < 0.0007 0.00818 < 0.0007 0.173 0.00268 < 0.00125 < 0.00125 < 0.00125 < 0.00125 < 0.00125 < 0.00125 < 0.00125 < 0.00125 < 0.00125 < 0.00125 < 0.00143 < 0.00143 < 0.00143 < 0.00143 < 0.00143 < 0.00143 < 0.00143 < 0.00143 < 0.00143 < 0.00143 < 0.00153 < 0.00153 < 0.00153 < 0.00153 < 0.00153 < 0.00153 < 0.00153 < 0.00153 < 0.00153 < 0.00153

0.0229 < 0.0004 0.0011 < 0.0004 < 0.0004 < 0.0004 < 0.0004 < 0.0004 < 0.0004 < 0.0004 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.000675 < 0.000675 < 0.000675 < 0.000675 < 0.000675 < 0.000675 < 0.000675 < 0.000675 < 0.000675 < 0.000675 ‐‐‐‐‐‐‐‐‐‐
< 0.000683 < 0.000683 < 0.000683 < 0.000683 < 0.000683 < 0.000683 < 0.000683 < 0.000683 < 0.000683 < 0.000683 < 0.00478 < 0.00478 < 0.00478 < 0.00478 < 0.00478 < 0.00478 < 0.00478 < 0.00478 < 0.00478 < 0.00478 HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 55 of 102 ends

LocationSample Name
Sample Date
Sample Depth
Metals (mg/kg) GPL DTSC TTLC
Antimony 7.84 ‐ 500
Arsenic 24.3 0.36/82 500
Barium 43000 ‐ 10,000
Beryllium ‐ 6,900 75
Cadmium 970 4,000 100Chromium 660 ‐ 2,500
Chromium VI (Hexavalent) 30 6.2 500
Cobalt ‐‐ 8,000
Copper 5600 ‐ 2,500
Lead 232 320 1,000Mercury 2.1 4.4 20Molybdenum ‐‐ 3,500 Nickel 3400 64,000 2,000Selenium ‐‐ 100Silver ‐‐ 500Thallium ‐‐ 700Vanadium ‐‐ 2,400 Zinc ‐‐ 5,000
‐
PCBs (mg/kg)
Aroclor‐1016 (PCB‐1016) ‐ 17 ‐
Aroclor‐1221 (PCB‐1221) ‐ 0.53 ‐
Aroclor‐1232 (PCB‐1232) ‐ 0.49 ‐
Aroclor‐1242 (PCB‐1242) ‐ 0.58 ‐
Aroclor‐1248 (PCB‐1248) ‐ 0.58 ‐
Aroclor‐1254 (PCB‐1254) ‐ 0.59 ‐
Aroclor‐1260 (PCB‐1260) ‐ 0.6 ‐
Aroclor‐1262 (PCB‐1262) ‐‐‐
Aroclor‐1268 (PCB‐1268) ‐‐‐
Total PCBs 130 0.58 50
‐
PEST (mg/kg)
4,4'‐DDD ‐ 6.2 1.0
4,4'‐DDE ‐ 9.3 1.04,4'‐DDT ‐ 7.1 1.0
Aldrin ‐ 0.18 1.4
alpha‐BHC ‐ 0.24 ‐
beta‐BHC ‐ 0.82 ‐
Chlordane ‐ 6.1 2.5
delta‐BHC ‐‐‐
Dieldrin ‐ 0.093 8.0
Endosulfan I ‐ 6,000 ‐
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
B29‐33A B29‐33A B29‐33B B29‐33B B29‐33C B29‐33C B29‐34A B29‐34A B29‐34B B29‐34B B29‐33A‐010 B29‐33A‐050 B29‐33B‐010 B29‐33B‐050 B29‐33C‐010 B29‐33C‐050 B29‐34A‐010 B29‐34A‐050 B29‐34B‐010 B29‐34B‐050 1/8/2020 1/8/2020 1/9/2020 1/9/2020 1/9/2020 1/9/2020 1/8/2020 1/8/2020 1/8/2020 1/8/2020

0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 1.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ < 0.0035 < 0.0035 < 0.0035 < 0.0035 < 0.0035 < 0.0035 < 0.0035 < 0.0035 < 0.0035 < 0.0035 < 0.00537 < 0.00537 < 0.00537 < 0.00537 < 0.00537 < 0.00537 < 0.00537 < 0.00537 < 0.00537 < 0.00537 < 0.00417 < 0.00417 < 0.00417 < 0.00417 < 0.00417 < 0.00417 < 0.00417 < 0.00417 < 0.00417 < 0.00417 < 0.00318 < 0.00318 < 0.00318 0.148 < 0.00318 < 0.00318 < 0.00318 < 0.00318 < 0.00318 < 0.00318 < 0.00315 < 0.00315 < 0.00315 < 0.00315 < 0.00315 < 0.00315 < 0.00315 < 0.00315 < 0.00315 < 0.00315 < 0.00472 < 0.00472 < 0.00472 0.077 < 0.00472 < 0.00472 < 0.00472 < 0.00472 < 0.00472 < 0.00472 < 0.00494 < 0.00494 < 0.00494 < 0.00494 < 0.00494 < 0.00494 < 0.00494 < 0.00494 < 0.00494 < 0.00494 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
< 0.00537 < 0.00537 < 0.00537 0.225 < 0.00537 < 0.00537 < 0.00537 < 0.00537 < 0.00537 < 0.00537 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 56 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
PEST (mg/kg) ‐
Endosulfan II ‐ 6,000 ‐
Endosulfan sulfate ‐ 11,000 ‐
Endrin ‐ 160 0.2
Endrin aldehyde ‐‐‐
Endrin ketone ‐‐‐
gamma‐BHC (Lindane) ‐ 2 4.0
Heptachlor ‐ 0.63 4.7
Heptachlor epoxide ‐ 0.33 ‐
Methoxychlor ‐ 2600 100
Toxaphene ‐ 1.2 5
‐
SVOCs (mg/kg)
1,2,4‐Trichlorobenzene 0.818 35 ‐
1,2‐Dichlorobenzene 28 ‐‐
1,3‐Dichlorobenzene ‐‐‐
1,4‐Dichlorobenzene 0.23 ‐‐
1‐Methylnaphthalene ‐ 30 ‐
2,2'‐oxybis(2‐Chloropropane) ‐‐‐
2,4,5‐Trichlorophenol ‐ 53,000 ‐
2,4,6‐Trichlorophenol ‐ 21 ‐
2,4‐Dichlorophenol ‐ 1,600 ‐
2,4‐Dimethylphenol ‐ 11,000 ‐
2,4‐Dinitrophenol ‐ 1,100 ‐
2,4‐Dinitrotoluene ‐‐‐
2,6‐Dichlorophenol ‐ 4.7 ‐
2,6‐Dinitrotoluene ‐ 0.99 ‐
2‐Chloronaphthalene ‐ 27,000 ‐
2‐Chlorophenol ‐ 3,900 ‐
2‐Methylnaphthalene ‐ 1,300 ‐
2‐Methylphenol (o‐Cresol) ‐ 26,000 ‐
2‐Nitroaniline ‐ 5,200 ‐
2‐Nitrophenol ‐‐‐3,3'‐Dichlorobenzidine ‐ 0.93 ‐
3‐Nitroaniline ‐‐‐
4,6‐Dinitro‐2‐methylphenol ‐ 42 ‐
4‐Bromophenyl phenyl ether ‐‐‐
4‐Chloro‐3‐methylphenol ‐ 53,000 ‐
4‐Chloroaniline ‐ 7.4 ‐
4‐Chlorophenyl phenyl ether ‐‐‐
4‐Nitroaniline ‐ 74 ‐
4‐Nitrophenol ‐‐‐
B29‐33A B29‐33A B29‐33B B29‐33B B29‐33C B29‐33C B29‐34A B29‐34A B29‐34B B29‐34B B29‐33A‐010 B29‐33A‐050 B29‐33B‐010 B29‐33B‐050 B29‐33C‐010 B29‐33C‐050 B29‐34A‐010 B29‐34A‐050 B29‐34B‐010 B29‐34B‐050 1/8/2020 1/8/2020 1/9/2020 1/9/2020 1/9/2020 1/9/2020 1/8/2020 1/8/2020 1/8/2020 1/8/2020

0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 1.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 57 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
SVOCs (mg/kg) ‐
Acenaphthene ‐ 23,000 ‐
Acenaphthylene ‐‐‐Aniline ‐ 260 ‐
Anthracene ‐ 130,000 ‐
Azobenzene ‐‐‐Benzidine ‐ 0.003 ‐
Benzo(a)anthracene ‐ 12 ‐
Benzo(a)pyrene 14 1.3 ‐Benzo(b)fluoranthene ‐ 13 ‐
Benzo(g,h,i)perylene ‐‐‐Benzo(k)fluoranthene ‐ 210,000 ‐ Benzoic acid ‐ 2,100,000 ‐
Benzyl Alcohol ‐ 53,000 ‐
bis(2‐Chloroethoxy)methane ‐ 1,600 ‐
bis(2‐Chloroethyl)ether ‐ 0.47 ‐
bis(2‐Ethylhexyl)phthalate 57 110 ‐
Butyl benzylphthalate ‐ 780 ‐
Chrysene ‐ 1,300 ‐
Dibenz(a,h)anthracene ‐ 0.31 ‐
Dibenzofuran ‐ 650 ‐
Diethyl phthalate ‐ 420,000 ‐Dimethyl phthalate ‐‐‐
Di‐n‐butylphthalate ‐ 53,000 ‐
Di‐n‐octyl phthalate ‐ 5,300 ‐Fluoranthene ‐ 18,000 ‐
Fluorene ‐ 17,000 ‐
Hexachlorobenzene ‐ 0.86 ‐
Hexachlorobutadiene ‐ 5.3 ‐
Hexachlorocyclopentadiene ‐‐‐Hexachloroethane ‐‐‐Indeno(1,2,3‐cd)pyrene ‐ 13 ‐ Isophorone ‐ 1,600 ‐
m,p‐Cresols ‐‐‐
Naphthalene ‐ 6.5 ‐
Nitrobenzene ‐‐‐N‐Nitrosodimethylamine ‐ 0.53 ‐
N‐Nitrosodi‐n‐propylamine ‐ 0.21 ‐
N‐Nitrosodiphenylamine ‐ 300 ‐
Pentachlorophenol 0.0717 2 ‐Phenanthrene ‐‐‐Phenol ‐ 160,000 ‐ Pyrene ‐ 13,000 ‐
Pyridine ‐ 530 ‐
B29‐33A B29‐33A B29‐33B B29‐33B B29‐33C B29‐33C B29‐34A B29‐34A B29‐34B B29‐34B B29‐33A‐010 B29‐33A‐050 B29‐33B‐010 B29‐33B‐050 B29‐33C‐010 B29‐33C‐050 B29‐34A‐010 B29‐34A‐050 B29‐34B‐010 B29‐34B‐050 1/8/2020 1/8/2020 1/9/2020 1/9/2020 1/9/2020 1/9/2020 1/8/2020 1/8/2020 1/8/2020 1/8/2020

0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 1.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 58 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
TPH (mg/kg)
PHC as Gasoline 5,400 97 ‐
Total Petroleum Hydrocarbons (C6) ‐‐‐
Total Petroleum Hydrocarbons (C7) ‐‐‐
Total Petroleum Hydrocarbons (C8) ‐‐‐
Total Petroleum Hydrocarbons (C9‐C10) ‐‐‐
Total Petroleum Hydrocarbons (C11‐C12) ‐‐‐
Total Petroleum Hydrocarbons (C13‐C14) ‐‐‐
Total Petroleum Hydrocarbons (C15‐C16) ‐‐‐
Total Petroleum Hydrocarbons (C17‐C18) ‐‐‐
Total Petroleum Hydrocarbons (C19‐C20) ‐‐‐
Total Petroleum Hydrocarbons (C21‐C22) ‐‐‐
Total Petroleum Hydrocarbons (C23‐C24) ‐‐‐
Total Petroleum Hydrocarbons (C25‐C28) ‐‐‐
Total Petroleum Hydrocarbons (C29‐C32) ‐‐‐
Total Petroleum Hydrocarbons (C33‐C36) ‐‐‐
Total Petroleum Hydrocarbons (C37‐C40) ‐‐‐
Total Petroleum Hydrocarbons (C41‐C44) ‐‐‐
Total Petroleum Hydrocarbons (C6‐C44) ‐‐‐
Total Petroleum Hydrocarbons (C10‐C28) Diesel ‐‐‐
Total Petroleum Hydrocarbons (C10‐C28) DRO ‐‐‐
Total Petroleum Hydrocarbons (>C28‐C44) ‐‐‐
Gasoline C6‐C8 (calculated) 2,900 ‐‐
Diesel C9‐C16 (calculated) 5,400 97 ‐
Oil C17‐C32 (calculated) 7,300 2,400 ‐
‐
VOCs (mg/kg)
1,1,1,2‐Tetrachloroethane ‐ 8.8 ‐
1,1,1‐Trichloroethane 1.7 7,200 ‐
1,1,2,2‐Tetrachloroethane ‐ 2.7 ‐
1,1,2‐Trichloroethane 0.04 ‐‐
1,1‐Dichloroethane 0.56 16 ‐
1,1‐Dichloroethene 0.071 350 ‐
1,1‐Dichloropropene ‐‐‐
1,2,3‐Trichlorobenzene ‐ 300 ‐
1,2,3‐Trichloropropane ‐ 0.021 ‐
1,2,3‐Trimethylbenzene ‐‐‐
1,2,4‐Trichlorobenzene 0.818 35 ‐
1,2,4‐Trimethylbenzene ‐‐‐
1,2‐Dibromo‐3‐chloropropane (DBCP) ‐ 0.057 ‐
1,2‐Dibromoethane (Ethylene Dibromide) ‐ 0.16 ‐
1,2‐Dichlorobenzene 28 ‐‐
1,2‐Dichloroethane 0.0028 ‐‐
1,2‐Dichloropropane ‐‐‐
B29‐33A B29‐33A B29‐33B B29‐33B B29‐33C B29‐33C B29‐34A B29‐34A B29‐34B B29‐34B B29‐33A‐010 B29‐33A‐050 B29‐33B‐010 B29‐33B‐050 B29‐33C‐010 B29‐33C‐050 B29‐34A‐010 B29‐34A‐050 B29‐34B‐010 B29‐34B‐050 1/8/2020 1/8/2020 1/9/2020 1/9/2020 1/9/2020 1/9/2020 1/8/2020 1/8/2020 1/8/2020 1/8/2020

0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 1.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.000275 < 0.000275 < 0.000275 < 0.000275 < 0.000275 < 0.000275 < 0.000275 < 0.000275 < 0.000275 < 0.000275 < 0.00039 < 0.00039 < 0.00039 < 0.00039 < 0.00039 < 0.00039 < 0.00039 < 0.00039 < 0.00039 < 0.00039 < 0.000883 < 0.000883 < 0.000883 < 0.000883 < 0.000883 < 0.000883 < 0.000883 < 0.000883 < 0.000883 < 0.000883 < 0.000575 < 0.000575 < 0.000575 < 0.000575 < 0.000575 < 0.000575 < 0.000575 < 0.000575 < 0.000575 < 0.000575 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.000625 < 0.000625 < 0.000625 < 0.000625 < 0.000625 < 0.000625 < 0.000625 < 0.000625 < 0.000625 < 0.000625 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.00115 < 0.00115 < 0.00115 0.00788 < 0.00115 < 0.00115 < 0.00115 < 0.00115 < 0.00115 < 0.00115 < 0.00482 < 0.00482 < 0.00482 < 0.00482 < 0.00482 < 0.00482 < 0.00482 < 0.00482 < 0.00482 < 0.00482 < 0.00116 < 0.00116 < 0.00116 0.00473 J < 0.00116 < 0.00116 < 0.00116 < 0.00116 < 0.00116 < 0.00116 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.000525 < 0.000525 < 0.000525 < 0.000525 < 0.000525 < 0.000525 < 0.000525 < 0.000525 < 0.000525 < 0.000525 < 0.00145 < 0.00145 < 0.00145 < 0.00145 < 0.00145 < 0.00145 < 0.00145 < 0.00145 < 0.00145 < 0.00145 < 0.000475 < 0.000475 < 0.000475 < 0.000475 < 0.000475 < 0.000475 < 0.000475 < 0.000475 < 0.000475 < 0.000475 < 0.00127 < 0.00127 < 0.00127 < 0.00127 < 0.00127 < 0.00127 < 0.00127 < 0.00127 < 0.00127 < 0.00127 HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 59 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
VOCs (mg/kg) ‐
1,3,5‐Trimethylbenzene ‐‐‐
1,3‐Dichlorobenzene ‐‐‐
1,3‐Dichloropropane ‐ 2,200 ‐
1,4‐Dichloro‐2‐butene ‐‐‐
1,4‐Dichlorobenzene 0.23 ‐‐
2,2‐Dichloropropane ‐‐‐
2‐Butanone (Methyl Ethyl Ketone) ‐‐‐
2‐Chlorotoluene ‐ 2,500 ‐
2‐Hexanone ‐‐‐2‐Phenylbutane (sec‐Butylbenzene) ‐ 12,000 ‐ 4‐Chlorotoluene ‐ 2,300 ‐
4‐Methyl‐2‐Pentanone (Methyl Isobutyl Ketone) ‐‐‐
Acetone ‐‐‐Acrylonitrile ‐‐‐Allyl chloride ‐‐‐
Benzene 0.019 1.4 ‐Bromobenzene ‐‐‐Bromodichloromethane ‐ 1.3 ‐ Bromoform ‐ 86 ‐
Bromomethane (Methyl Bromide) ‐‐‐
Carbon disulfide ‐‐‐
Carbon tetrachloride ‐ 2.9 ‐
Chlorobenzene 2 ‐‐Chlorobromomethane ‐ 4.1 ‐
Chloroethane ‐‐‐Chloroform (Trichloromethane) ‐‐‐
Chloromethane (Methyl Chloride) ‐‐‐
cis‐1,2‐Dichloroethene 4.9 84 ‐
cis‐1,3‐Dichloropropene ‐‐‐
cis‐1,4‐Dichloro‐2‐butene ‐‐‐Cymene (p‐Isopropyltoluene) ‐ 1,600 ‐ Dibromochloromethane ‐‐‐Dibromomethane ‐‐‐Dichlorodifluoromethane (CFC‐12) ‐‐‐ Diisopropyl ether (DIPE) ‐‐‐
Ethylbenzene 7.7 ‐‐Hexachlorobutadiene ‐ 5.3 ‐
Isopropylbenzene (Cumene) ‐‐‐
m,p‐Xylenes 6 ‐‐
Methyl Tert Butyl Ether ‐‐‐
Methylene chloride 0.019 26 ‐
Naphthalene ‐ 6.5 ‐
n‐Butylbenzene ‐‐‐
B29‐33A B29‐33A B29‐33B B29‐33B B29‐33C B29‐33C B29‐34A B29‐34A B29‐34B B29‐34B B29‐33A‐010 B29‐33A‐050 B29‐33B‐010 B29‐33B‐050 B29‐33C‐010 B29‐33C‐050 B29‐34A‐010 B29‐34A‐050 B29‐34B‐010 B29‐34B‐050 1/8/2020 1/8/2020 1/9/2020 1/9/2020 1/9/2020 1/9/2020 1/8/2020 1/8/2020 1/8/2020 1/8/2020

0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 1.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) < 0.00108 < 0.00108 < 0.00108 0.00183 J < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.0017 < 0.0017 < 0.0017 < 0.0017 < 0.0017 < 0.0017 < 0.0017 < 0.0017 < 0.0017 < 0.0017 < 0.00175 < 0.00175 < 0.00175 < 0.00175 < 0.00175 < 0.00175 < 0.00175 < 0.00175 < 0.00175 < 0.00175 ‐‐‐‐‐‐‐‐‐‐
< 0.00197 < 0.00197 < 0.00197 < 0.00197 < 0.00197 < 0.00197 < 0.00197 < 0.00197 < 0.00197 < 0.00197 < 0.000793 < 0.000793 < 0.000793 < 0.000793 < 0.000793 < 0.000793 < 0.000793 < 0.000793 < 0.000793 < 0.000793

0.0461 0.046 0.0366 0.0631 < 0.0125 0.0357 0.041 0.0438 0.0427 0.0472 < 0.00092 < 0.00092 < 0.00092 < 0.00092 < 0.00092 < 0.00092 < 0.00092 < 0.00092 < 0.00092 < 0.00092 ‐‐‐‐‐‐‐‐‐‐
< 0.00253 < 0.00253 < 0.00253 < 0.00253 < 0.00253 < 0.00253 < 0.00253 < 0.00253 < 0.00253 < 0.00253 < 0.00113 < 0.00113 < 0.00113 < 0.00113 < 0.00113 < 0.00113 < 0.00113 < 0.00113 < 0.00113 < 0.00113 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.0137 < 0.0137 < 0.0137 0.0675 < 0.0137 < 0.0137 < 0.0137 < 0.0137 < 0.0137 < 0.0137 < 0.0019 < 0.0019 < 0.0019 < 0.0019 < 0.0019 < 0.0019 < 0.0019 < 0.0019 < 0.0019 < 0.0019 ‐‐‐‐‐‐‐‐‐‐
< 0.0004 < 0.0004 < 0.0004 < 0.0004 < 0.0004 < 0.0004 < 0.0004 < 0.0004 < 0.0004 < 0.0004 < 0.00105 < 0.00105 < 0.00105 < 0.00105 < 0.00105 < 0.00105 < 0.00105 < 0.00105 < 0.00105 < 0.00105 < 0.000788 < 0.000788 < 0.000788 < 0.000788 < 0.000788 < 0.000788 < 0.000788 < 0.000788 < 0.000788 < 0.000788 < 0.00598 < 0.00598 < 0.00598 < 0.00598 < 0.00598 < 0.00598 < 0.00598 < 0.00598 < 0.00598 < 0.00598 < 0.0037 < 0.0037 < 0.0037 < 0.0037 < 0.0037 < 0.0037 < 0.0037 < 0.0037 < 0.0037 < 0.0037 ‐‐‐‐‐‐‐‐‐‐
< 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.000573 < 0.000573 < 0.000573 < 0.000573 < 0.000573 < 0.000573 < 0.000573 < 0.000573 < 0.000573 < 0.000573 ‐‐‐‐‐‐‐‐‐‐
< 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.000415 < 0.000415 < 0.000415 < 0.000415 < 0.000415 < 0.000415 < 0.000415 0.000441 J < 0.000415 < 0.000415 < 0.00139 < 0.00139 < 0.00139 < 0.00139 < 0.00139 < 0.00139 < 0.00139 < 0.00139 < 0.00139 < 0.00139 < 0.00069 < 0.00069 < 0.00069 < 0.00069 < 0.00069 < 0.00069 < 0.00069 < 0.00069 < 0.00069 < 0.00069 < 0.000678 < 0.000678 < 0.000678 < 0.000678 < 0.000678 < 0.000678 < 0.000678 < 0.000678 < 0.000678 < 0.000678 ‐‐‐‐‐‐‐‐‐‐
< 0.00233 < 0.00233 < 0.00233 < 0.00233 < 0.00233 < 0.00233 < 0.00233 < 0.00233 < 0.00233 < 0.00233 < 0.00045 < 0.00045 < 0.00045 < 0.00045 < 0.00045 < 0.00045 < 0.00045 < 0.00045 < 0.00045 < 0.00045 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.000818 < 0.000818 < 0.000818 < 0.000818 < 0.000818 < 0.000818 < 0.000818 < 0.000818 < 0.000818 < 0.000818 < 0.00035 < 0.00035 < 0.00035 < 0.00035 < 0.00035 < 0.00035 < 0.00035 < 0.00035 < 0.00035 < 0.00035 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.0127 < 0.0127 < 0.0127 < 0.0127 < 0.0127 < 0.0127 < 0.0127 < 0.0127 < 0.0127 < 0.0127 < 0.000863 < 0.000863 < 0.000863 < 0.000863 < 0.000863 < 0.000863 < 0.000863 < 0.000863 < 0.000863 < 0.000863 ‐‐‐‐‐‐‐‐‐‐
< 0.000295 < 0.000295 < 0.000295 < 0.000295 < 0.000295 < 0.000295 < 0.000295 < 0.000295 < 0.000295 < 0.000295 < 0.00664 < 0.00664 < 0.00664 < 0.00664 < 0.00664 < 0.00664 < 0.00664 < 0.00664 < 0.00664 < 0.00664 < 0.00312 < 0.00312 < 0.00312 0.0113 J < 0.00312 < 0.00312 < 0.00312 < 0.00312 < 0.00312 < 0.00312 < 0.00384 < 0.00384 < 0.00384 < 0.00384 < 0.00384 < 0.00384 < 0.00384 < 0.00384 < 0.00384 < 0.00384 HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 60 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
VOCs (mg/kg) ‐
n‐Propylbenzene ‐‐‐
o‐Xylene 6 ‐‐
PHC as Gasoline 5,400 97 ‐
Styrene ‐ 32,000 ‐
Tert‐Amyl Methyl Ether (TAME) ‐‐‐
Tert‐Butyl Alcohol (tert‐Butanol) ‐‐‐
Tert‐Butyl Ethyl Ether (ETBE) ‐‐‐tert‐Butylbenzene ‐‐‐
Tetrachloroethene 2.1 2.7 ‐
Toluene 0.44 5,300 ‐trans‐1,2‐Dichloroethene 0.17 600 ‐ trans‐1,3‐Dichloropropene ‐‐‐
Trichloroethene 27 63 2,040
Trichlorofluoromethane (CFC‐11) ‐ 5,400 ‐
Trifluorotrichloroethane (Freon 113) 6.4 ‐‐
Vinyl acetate ‐‐‐
Vinyl chloride 13 0.15 ‐
Xylene (total) 6 ‐‐
Notes and Abbreviations:

BOLD = concentration detected at or above
reported detection limit.

No COPC in soil exceeded its Total Threshold Limit Concentration (TTLC). < = analyte not detected above the indicated
reporting limit.B = compound detected in the associated blank J = estimated concentration.‐ = not analyzed or not applicable. mg/kg = milligrams per kilogram.
bgs = below ground surface.

GPL: Groundwater Protection Level (Haley & Aldrich 2014a, 2014b) TTLC: Total Threshold Limit Concentration, CCR Title 22 Section 66261.24 1 Cancer Endpoint. If there is no Cancer Endpoint, the Noncancer Endpoint is noted.2 Site background3 U.S. EPA Region 9 Remediation Screening Level DTSC‐SL: Commercial/Industrial Department of Toxic Substances Control‐Screening Level, HHRA Note 3, June 2020.

B29‐33A B29‐33A B29‐33B B29‐33B B29‐33C B29‐33C B29‐34A B29‐34A B29‐34B B29‐34B B29‐33A‐010 B29‐33A‐050 B29‐33B‐010 B29‐33B‐050 B29‐33C‐010 B29‐33C‐050 B29‐34A‐010 B29‐34A‐050 B29‐34B‐010 B29‐34B‐050 1/8/2020 1/8/2020 1/9/2020 1/9/2020 1/9/2020 1/9/2020 1/8/2020 1/8/2020 1/8/2020 1/8/2020

0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 1.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) < 0.00118 < 0.00118 < 0.00118 < 0.00118 < 0.00118 < 0.00118 < 0.00118 < 0.00118 < 0.00118 < 0.00118 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
< 0.00273 < 0.00273 < 0.00273 < 0.00273 < 0.00273 < 0.00273 < 0.00273 < 0.00273 < 0.00273 < 0.00273 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
< 0.00155 < 0.00155 < 0.00155 < 0.00155 < 0.00155 < 0.00155 < 0.00155 < 0.00155 < 0.00155 < 0.00155 < 0.0007 < 0.0007 < 0.0007 0.00153 J < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.00125 < 0.00125 < 0.00125 < 0.00125 < 0.00125 < 0.00125 < 0.00125 < 0.00125 < 0.00125 < 0.00125 < 0.00143 < 0.00143 < 0.00143 < 0.00143 < 0.00143 < 0.00143 < 0.00143 < 0.00143 < 0.00143 < 0.00143 < 0.00153 < 0.00153 < 0.00153 < 0.00153 < 0.00153 < 0.00153 < 0.00153 < 0.00153 < 0.00153 < 0.00153 < 0.0004 0.00725 < 0.0004 0.323 0.000925 J < 0.0004 < 0.0004 < 0.0004 < 0.0004 < 0.0004 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.000675 < 0.000675 < 0.000675 < 0.000675 < 0.000675 < 0.000675 < 0.000675 < 0.000675 < 0.000675 < 0.000675 ‐‐‐‐‐‐‐‐‐‐
< 0.000683 < 0.000683 < 0.000683 < 0.000683 < 0.000683 < 0.000683 < 0.000683 < 0.000683 < 0.000683 < 0.000683 < 0.00478 < 0.00478 < 0.00478 < 0.00478 < 0.00478 < 0.00478 < 0.00478 < 0.00478 < 0.00478 < 0.00478 HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 61 of 102 ends

LocationSample Name
Sample Date
Sample Depth
Metals (mg/kg) GPL DTSC TTLC
Antimony 7.84 ‐ 500
Arsenic 24.3 0.36/82 500
Barium 43000 ‐ 10,000
Beryllium ‐ 6,900 75
Cadmium 970 4,000 100Chromium 660 ‐ 2,500
Chromium VI (Hexavalent) 30 6.2 500
Cobalt ‐‐ 8,000
Copper 5600 ‐ 2,500
Lead 232 320 1,000Mercury 2.1 4.4 20Molybdenum ‐‐ 3,500 Nickel 3400 64,000 2,000Selenium ‐‐ 100Silver ‐‐ 500Thallium ‐‐ 700Vanadium ‐‐ 2,400 Zinc ‐‐ 5,000
‐
PCBs (mg/kg)
Aroclor‐1016 (PCB‐1016) ‐ 17 ‐
Aroclor‐1221 (PCB‐1221) ‐ 0.53 ‐
Aroclor‐1232 (PCB‐1232) ‐ 0.49 ‐
Aroclor‐1242 (PCB‐1242) ‐ 0.58 ‐
Aroclor‐1248 (PCB‐1248) ‐ 0.58 ‐
Aroclor‐1254 (PCB‐1254) ‐ 0.59 ‐
Aroclor‐1260 (PCB‐1260) ‐ 0.6 ‐
Aroclor‐1262 (PCB‐1262) ‐‐‐
Aroclor‐1268 (PCB‐1268) ‐‐‐
Total PCBs 130 0.58 50
‐
PEST (mg/kg)
4,4'‐DDD ‐ 6.2 1.0
4,4'‐DDE ‐ 9.3 1.04,4'‐DDT ‐ 7.1 1.0
Aldrin ‐ 0.18 1.4
alpha‐BHC ‐ 0.24 ‐
beta‐BHC ‐ 0.82 ‐
Chlordane ‐ 6.1 2.5
delta‐BHC ‐‐‐
Dieldrin ‐ 0.093 8.0
Endosulfan I ‐ 6,000 ‐
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
B29‐34C B29‐34C B29‐35A B29‐35A B29‐35B B29‐35B B29‐35C B29‐35C B99‐01 B99‐01 B29‐34C‐010 B29‐34C‐050 B29‐35A‐010 B29‐35A‐050 B29‐35B‐010 B29‐35B‐050 B29‐35C‐010 B29‐35C‐050 B99‐01‐1 B99‐01‐5 1/8/2020 1/8/2020 1/8/2020 1/8/2020 1/8/2020 1/8/2020 1/8/2020 1/8/2020 6/27/2016 6/27/2016

0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) ‐‐‐‐‐‐‐‐ < 0.153 < 0.142
‐‐‐‐‐‐‐‐ 3.62 0.661 J
‐‐‐‐‐‐‐‐ 73 80.8‐‐‐‐‐‐‐‐ 0.266 0.394
‐‐‐‐‐‐‐‐ 0.454 J 0.365 J
‐‐‐‐‐‐‐‐ 14.8 18.3‐‐‐‐‐‐‐‐ 9.09 11.3‐‐‐‐‐‐‐‐ 24.2 11.7‐‐‐‐‐‐‐‐ 12.5 4.29‐‐‐‐‐‐‐‐ 0.00722 J < 0.00559 ‐‐‐‐‐‐‐‐ 0.174 J < 0.126
‐‐‐‐‐‐‐‐ 7.58 9.51‐‐‐‐‐‐‐‐ < 0.307 0.395 J
‐‐‐‐‐‐‐‐ < 0.0879 < 0.0816
‐‐‐‐‐‐‐‐ < 0.156 < 0.144
‐‐‐‐‐‐‐‐ 43.4 61‐‐‐‐‐‐‐‐ 39.8 36.5
< 0.0035 < 0.0035 < 0.0035 < 0.0035 < 0.0035 < 0.0035 < 0.0035 < 0.0035 < 0.021 < 0.021 < 0.00537 < 0.00537 < 0.00537 < 0.00537 < 0.00537 < 0.00537 < 0.00537 < 0.00537 < 0.042 < 0.042 < 0.00417 < 0.00417 < 0.00417 < 0.00417 < 0.00417 < 0.00417 < 0.00417 < 0.00417 < 0.025 < 0.025 < 0.00318 < 0.00318 < 0.00318 < 0.00318 < 0.00318 < 0.00318 < 0.00318 < 0.00318 < 0.037 < 0.037 < 0.00315 < 0.00315 < 0.00315 < 0.00315 < 0.00315 < 0.00315 < 0.00315 < 0.00315 < 0.032 < 0.032 < 0.00472 < 0.00472 < 0.00472 < 0.00472 < 0.00472 < 0.00472 < 0.00472 < 0.00472 < 0.032 < 0.032 < 0.00494 < 0.00494 < 0.00494 < 0.00494 < 0.00494 < 0.00494 < 0.00494 < 0.00494 < 0.03 < 0.03 ‐‐‐‐‐‐‐‐ < 0.035 < 0.035
‐‐‐‐‐‐‐‐ < 0.033 < 0.033
< 0.00537 < 0.00537 < 0.00537 < 0.00537 < 0.00537 < 0.00537 < 0.00537 < 0.00537 < 0.042 < 0.042 ‐‐‐‐‐‐‐‐ < 0.012 ‐
‐‐‐‐‐‐‐‐ 0.81 ‐
‐‐‐‐‐‐‐‐ 0.1 ‐
‐‐‐‐‐‐‐‐ < 0.011 ‐
‐‐‐‐‐‐‐‐ < 0.019 ‐
‐‐‐‐‐‐‐‐ < 0.012 ‐
‐‐‐‐‐‐‐‐ < 0.13 ‐
‐‐‐‐‐‐‐‐ < 0.022 ‐
‐‐‐‐‐‐‐‐ < 0.011 ‐
‐‐‐‐‐‐‐‐ < 0.0099 ‐
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 62 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
PEST (mg/kg) ‐
Endosulfan II ‐ 6,000 ‐
Endosulfan sulfate ‐ 11,000 ‐
Endrin ‐ 160 0.2
Endrin aldehyde ‐‐‐
Endrin ketone ‐‐‐
gamma‐BHC (Lindane) ‐ 2 4.0
Heptachlor ‐ 0.63 4.7
Heptachlor epoxide ‐ 0.33 ‐
Methoxychlor ‐ 2600 100
Toxaphene ‐ 1.2 5
‐
SVOCs (mg/kg)
1,2,4‐Trichlorobenzene 0.818 35 ‐
1,2‐Dichlorobenzene 28 ‐‐
1,3‐Dichlorobenzene ‐‐‐
1,4‐Dichlorobenzene 0.23 ‐‐
1‐Methylnaphthalene ‐ 30 ‐
2,2'‐oxybis(2‐Chloropropane) ‐‐‐
2,4,5‐Trichlorophenol ‐ 53,000 ‐
2,4,6‐Trichlorophenol ‐ 21 ‐
2,4‐Dichlorophenol ‐ 1,600 ‐
2,4‐Dimethylphenol ‐ 11,000 ‐
2,4‐Dinitrophenol ‐ 1,100 ‐
2,4‐Dinitrotoluene ‐‐‐
2,6‐Dichlorophenol ‐ 4.7 ‐
2,6‐Dinitrotoluene ‐ 0.99 ‐
2‐Chloronaphthalene ‐ 27,000 ‐
2‐Chlorophenol ‐ 3,900 ‐
2‐Methylnaphthalene ‐ 1,300 ‐
2‐Methylphenol (o‐Cresol) ‐ 26,000 ‐
2‐Nitroaniline ‐ 5,200 ‐
2‐Nitrophenol ‐‐‐3,3'‐Dichlorobenzidine ‐ 0.93 ‐
3‐Nitroaniline ‐‐‐
4,6‐Dinitro‐2‐methylphenol ‐ 42 ‐
4‐Bromophenyl phenyl ether ‐‐‐
4‐Chloro‐3‐methylphenol ‐ 53,000 ‐
4‐Chloroaniline ‐ 7.4 ‐
4‐Chlorophenyl phenyl ether ‐‐‐
4‐Nitroaniline ‐ 74 ‐
4‐Nitrophenol ‐‐‐
B29‐34C B29‐34C B29‐35A B29‐35A B29‐35B B29‐35B B29‐35C B29‐35C B99‐01 B99‐01 B29‐34C‐010 B29‐34C‐050 B29‐35A‐010 B29‐35A‐050 B29‐35B‐010 B29‐35B‐050 B29‐35C‐010 B29‐35C‐050 B99‐01‐1 B99‐01‐5 1/8/2020 1/8/2020 1/8/2020 1/8/2020 1/8/2020 1/8/2020 1/8/2020 1/8/2020 6/27/2016 6/27/2016

0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) ‐‐‐‐‐‐‐‐ < 0.012 ‐
‐‐‐‐‐‐‐‐ < 0.013 ‐
‐‐‐‐‐‐‐‐ < 0.012 ‐
‐‐‐‐‐‐‐‐ < 0.015 ‐
‐‐‐‐‐‐‐‐ < 0.013 ‐
‐‐‐‐‐‐‐‐ < 0.011 ‐
‐‐‐‐‐‐‐‐ < 0.011 ‐
‐‐‐‐‐‐‐‐ 0.022 J ‐
‐‐‐‐‐‐‐‐ < 0.014 ‐
‐‐‐‐‐‐‐‐ < 0.22 ‐
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 63 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
SVOCs (mg/kg) ‐
Acenaphthene ‐ 23,000 ‐
Acenaphthylene ‐‐‐Aniline ‐ 260 ‐
Anthracene ‐ 130,000 ‐
Azobenzene ‐‐‐Benzidine ‐ 0.003 ‐
Benzo(a)anthracene ‐ 12 ‐
Benzo(a)pyrene 14 1.3 ‐Benzo(b)fluoranthene ‐ 13 ‐
Benzo(g,h,i)perylene ‐‐‐Benzo(k)fluoranthene ‐ 210,000 ‐ Benzoic acid ‐ 2,100,000 ‐
Benzyl Alcohol ‐ 53,000 ‐
bis(2‐Chloroethoxy)methane ‐ 1,600 ‐
bis(2‐Chloroethyl)ether ‐ 0.47 ‐
bis(2‐Ethylhexyl)phthalate 57 110 ‐
Butyl benzylphthalate ‐ 780 ‐
Chrysene ‐ 1,300 ‐
Dibenz(a,h)anthracene ‐ 0.31 ‐
Dibenzofuran ‐ 650 ‐
Diethyl phthalate ‐ 420,000 ‐Dimethyl phthalate ‐‐‐
Di‐n‐butylphthalate ‐ 53,000 ‐
Di‐n‐octyl phthalate ‐ 5,300 ‐Fluoranthene ‐ 18,000 ‐
Fluorene ‐ 17,000 ‐
Hexachlorobenzene ‐ 0.86 ‐
Hexachlorobutadiene ‐ 5.3 ‐
Hexachlorocyclopentadiene ‐‐‐Hexachloroethane ‐‐‐Indeno(1,2,3‐cd)pyrene ‐ 13 ‐ Isophorone ‐ 1,600 ‐
m,p‐Cresols ‐‐‐
Naphthalene ‐ 6.5 ‐
Nitrobenzene ‐‐‐N‐Nitrosodimethylamine ‐ 0.53 ‐
N‐Nitrosodi‐n‐propylamine ‐ 0.21 ‐
N‐Nitrosodiphenylamine ‐ 300 ‐
Pentachlorophenol 0.0717 2 ‐Phenanthrene ‐‐‐Phenol ‐ 160,000 ‐ Pyrene ‐ 13,000 ‐
Pyridine ‐ 530 ‐
B29‐34C B29‐34C B29‐35A B29‐35A B29‐35B B29‐35B B29‐35C B29‐35C B99‐01 B99‐01 B29‐34C‐010 B29‐34C‐050 B29‐35A‐010 B29‐35A‐050 B29‐35B‐010 B29‐35B‐050 B29‐35C‐010 B29‐35C‐050 B99‐01‐1 B99‐01‐5 1/8/2020 1/8/2020 1/8/2020 1/8/2020 1/8/2020 1/8/2020 1/8/2020 1/8/2020 6/27/2016 6/27/2016

0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) ‐‐‐‐‐‐‐‐ < 0.004 ‐
‐‐‐‐‐‐‐‐ < 0.0042 ‐
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ < 0.002 ‐
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ < 0.0025 ‐
‐‐‐‐‐‐‐‐ < 0.002 ‐
‐‐‐‐‐‐‐‐ < 0.0021 ‐
‐‐‐‐‐‐‐‐ < 0.0018 ‐
‐‐‐‐‐‐‐‐ < 0.0017 ‐
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ < 0.0021 ‐ ‐‐‐‐‐‐‐‐ < 0.003 ‐
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ < 0.0021 ‐ ‐‐‐‐‐‐‐‐ < 0.0017 ‐
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ < 0.0022 ‐ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ < 0.004 ‐
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ < 0.0021 ‐ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ < 0.0029 ‐
‐‐‐‐‐‐‐‐‐‐
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 64 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
TPH (mg/kg)
PHC as Gasoline 5,400 97 ‐
Total Petroleum Hydrocarbons (C6) ‐‐‐
Total Petroleum Hydrocarbons (C7) ‐‐‐
Total Petroleum Hydrocarbons (C8) ‐‐‐
Total Petroleum Hydrocarbons (C9‐C10) ‐‐‐
Total Petroleum Hydrocarbons (C11‐C12) ‐‐‐
Total Petroleum Hydrocarbons (C13‐C14) ‐‐‐
Total Petroleum Hydrocarbons (C15‐C16) ‐‐‐
Total Petroleum Hydrocarbons (C17‐C18) ‐‐‐
Total Petroleum Hydrocarbons (C19‐C20) ‐‐‐
Total Petroleum Hydrocarbons (C21‐C22) ‐‐‐
Total Petroleum Hydrocarbons (C23‐C24) ‐‐‐
Total Petroleum Hydrocarbons (C25‐C28) ‐‐‐
Total Petroleum Hydrocarbons (C29‐C32) ‐‐‐
Total Petroleum Hydrocarbons (C33‐C36) ‐‐‐
Total Petroleum Hydrocarbons (C37‐C40) ‐‐‐
Total Petroleum Hydrocarbons (C41‐C44) ‐‐‐
Total Petroleum Hydrocarbons (C6‐C44) ‐‐‐
Total Petroleum Hydrocarbons (C10‐C28) Diesel ‐‐‐
Total Petroleum Hydrocarbons (C10‐C28) DRO ‐‐‐
Total Petroleum Hydrocarbons (>C28‐C44) ‐‐‐
Gasoline C6‐C8 (calculated) 2,900 ‐‐
Diesel C9‐C16 (calculated) 5,400 97 ‐
Oil C17‐C32 (calculated) 7,300 2,400 ‐
‐
VOCs (mg/kg)
1,1,1,2‐Tetrachloroethane ‐ 8.8 ‐
1,1,1‐Trichloroethane 1.7 7,200 ‐
1,1,2,2‐Tetrachloroethane ‐ 2.7 ‐
1,1,2‐Trichloroethane 0.04 ‐‐
1,1‐Dichloroethane 0.56 16 ‐
1,1‐Dichloroethene 0.071 350 ‐
1,1‐Dichloropropene ‐‐‐
1,2,3‐Trichlorobenzene ‐ 300 ‐
1,2,3‐Trichloropropane ‐ 0.021 ‐
1,2,3‐Trimethylbenzene ‐‐‐
1,2,4‐Trichlorobenzene 0.818 35 ‐
1,2,4‐Trimethylbenzene ‐‐‐
1,2‐Dibromo‐3‐chloropropane (DBCP) ‐ 0.057 ‐
1,2‐Dibromoethane (Ethylene Dibromide) ‐ 0.16 ‐
1,2‐Dichlorobenzene 28 ‐‐
1,2‐Dichloroethane 0.0028 ‐‐
1,2‐Dichloropropane ‐‐‐
B29‐34C B29‐34C B29‐35A B29‐35A B29‐35B B29‐35B B29‐35C B29‐35C B99‐01 B99‐01 B29‐34C‐010 B29‐34C‐050 B29‐35A‐010 B29‐35A‐050 B29‐35B‐010 B29‐35B‐050 B29‐35C‐010 B29‐35C‐050 B99‐01‐1 B99‐01‐5 1/8/2020 1/8/2020 1/8/2020 1/8/2020 1/8/2020 1/8/2020 1/8/2020 1/8/2020 6/27/2016 6/27/2016

0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ < 1.3 < 1.3
‐‐‐‐‐‐‐‐ < 1.3 < 1.3‐‐‐‐‐‐‐‐ < 1.3 < 1.3‐‐‐‐‐‐‐‐ < 1.3 < 1.3 ‐‐‐‐‐‐‐‐ < 1.3 < 1.3‐‐‐‐‐‐‐‐ < 1.3 < 1.3‐‐‐‐‐‐‐‐ < 1.3 < 1.3 ‐‐‐‐‐‐‐‐ < 1.3 < 1.3
‐‐‐‐‐‐‐‐ < 1.3 < 1.3
‐‐‐‐‐‐‐‐ < 1.3 < 1.3‐‐‐‐‐‐‐‐ < 1.3 < 1.3‐‐‐‐‐‐‐‐ < 1.3 < 1.3‐‐‐‐‐‐‐‐ 5.9 1.3 J ‐‐‐‐‐‐‐‐ 4.6 J < 1.3
‐‐‐‐‐‐‐‐ < 1.3 < 1.3
‐‐‐‐‐‐‐‐ < 1.3 < 1.3
‐‐‐‐‐‐‐‐ 11 1.3 J
‐‐‐‐‐‐‐‐‐‐
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ < 1.3 < 1.3
‐‐‐‐‐‐‐‐ < 1.3 < 1.3‐‐‐‐‐‐‐‐ 5.9 1.3
< 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.00024 < 0.00024 < 0.000275 < 0.000275 < 0.000275 < 0.000275 < 0.000275 < 0.000275 < 0.000275 < 0.000275 < 0.00023 < 0.00022 < 0.00039 < 0.00039 < 0.00039 < 0.00039 < 0.00039 < 0.00039 < 0.00039 < 0.00039 < 0.00035 < 0.00034 < 0.000883 < 0.000883 < 0.000883 < 0.000883 < 0.000883 < 0.000883 < 0.000883 < 0.000883 < 0.00036 < 0.00035 < 0.000575 < 0.000575 < 0.000575 < 0.000575 < 0.000575 < 0.000575 < 0.000575 < 0.000575 < 0.00021 < 0.00021 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.00035 < 0.00034 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.00033 < 0.00033 < 0.000625 < 0.000625 < 0.000625 < 0.000625 < 0.000625 < 0.000625 < 0.000625 < 0.000625 < 0.00092 < 0.0009 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.00084 < 0.00082 < 0.00115 < 0.00115 < 0.00115 < 0.00115 < 0.00115 < 0.00115 < 0.00115 < 0.00115 ‐‐ < 0.00482 < 0.00482 < 0.00482 < 0.00482 < 0.00482 < 0.00482 < 0.00482 < 0.00482 < 0.00031 < 0.00031 < 0.00116 < 0.00116 < 0.00116 < 0.00116 < 0.00116 < 0.00116 < 0.00116 < 0.00116 < 0.00059 < 0.00058 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0051 < 0.0018 < 0.0017 < 0.000525 < 0.000525 < 0.000525 < 0.000525 < 0.000525 < 0.000525 < 0.000525 < 0.000525 < 0.00026 < 0.00025 < 0.00145 < 0.00145 < 0.00145 < 0.00145 < 0.00145 < 0.00145 < 0.00145 < 0.00145 < 0.00023 < 0.00023 < 0.000475 < 0.000475 < 0.000475 < 0.000475 < 0.000475 < 0.000475 < 0.000475 < 0.000475 < 0.00032 < 0.00031 < 0.00127 < 0.00127 < 0.00127 < 0.00127 < 0.00127 < 0.00127 < 0.00127 < 0.00127 < 0.00044 < 0.00043 HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 65 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
VOCs (mg/kg) ‐
1,3,5‐Trimethylbenzene ‐‐‐
1,3‐Dichlorobenzene ‐‐‐
1,3‐Dichloropropane ‐ 2,200 ‐
1,4‐Dichloro‐2‐butene ‐‐‐
1,4‐Dichlorobenzene 0.23 ‐‐
2,2‐Dichloropropane ‐‐‐
2‐Butanone (Methyl Ethyl Ketone) ‐‐‐
2‐Chlorotoluene ‐ 2,500 ‐
2‐Hexanone ‐‐‐2‐Phenylbutane (sec‐Butylbenzene) ‐ 12,000 ‐ 4‐Chlorotoluene ‐ 2,300 ‐
4‐Methyl‐2‐Pentanone (Methyl Isobutyl Ketone) ‐‐‐
Acetone ‐‐‐Acrylonitrile ‐‐‐Allyl chloride ‐‐‐
Benzene 0.019 1.4 ‐Bromobenzene ‐‐‐Bromodichloromethane ‐ 1.3 ‐ Bromoform ‐ 86 ‐
Bromomethane (Methyl Bromide) ‐‐‐
Carbon disulfide ‐‐‐
Carbon tetrachloride ‐ 2.9 ‐
Chlorobenzene 2 ‐‐Chlorobromomethane ‐ 4.1 ‐
Chloroethane ‐‐‐Chloroform (Trichloromethane) ‐‐‐
Chloromethane (Methyl Chloride) ‐‐‐
cis‐1,2‐Dichloroethene 4.9 84 ‐
cis‐1,3‐Dichloropropene ‐‐‐
cis‐1,4‐Dichloro‐2‐butene ‐‐‐Cymene (p‐Isopropyltoluene) ‐ 1,600 ‐ Dibromochloromethane ‐‐‐Dibromomethane ‐‐‐Dichlorodifluoromethane (CFC‐12) ‐‐‐ Diisopropyl ether (DIPE) ‐‐‐
Ethylbenzene 7.7 ‐‐Hexachlorobutadiene ‐ 5.3 ‐
Isopropylbenzene (Cumene) ‐‐‐
m,p‐Xylenes 6 ‐‐
Methyl Tert Butyl Ether ‐‐‐
Methylene chloride 0.019 26 ‐
Naphthalene ‐ 6.5 ‐
n‐Butylbenzene ‐‐‐
B29‐34C B29‐34C B29‐35A B29‐35A B29‐35B B29‐35B B29‐35C B29‐35C B99‐01 B99‐01 B29‐34C‐010 B29‐34C‐050 B29‐35A‐010 B29‐35A‐050 B29‐35B‐010 B29‐35B‐050 B29‐35C‐010 B29‐35C‐050 B99‐01‐1 B99‐01‐5 1/8/2020 1/8/2020 1/8/2020 1/8/2020 1/8/2020 1/8/2020 1/8/2020 1/8/2020 6/27/2016 6/27/2016

0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00055 < 0.00054 < 0.0017 < 0.0017 < 0.0017 < 0.0017 < 0.0017 < 0.0017 < 0.0017 < 0.0017 < 0.00018 < 0.00017 < 0.00175 < 0.00175 < 0.00175 < 0.00175 < 0.00175 < 0.00175 < 0.00175 < 0.00175 < 0.00026 < 0.00025 ‐‐‐‐‐‐‐‐‐‐
< 0.00197 < 0.00197 < 0.00197 < 0.00197 < 0.00197 < 0.00197 < 0.00197 < 0.00197 < 0.00022 < 0.00022 < 0.000793 < 0.000793 < 0.000793 < 0.000793 < 0.000793 < 0.000793 < 0.000793 < 0.000793 < 0.00033 < 0.00033

0.0485 0.0437 0.046 0.0466 0.0453 0.0457 0.0398 0.0535 < 0.0038 < 0.0037 < 0.00092 < 0.00092 < 0.00092 < 0.00092 < 0.00092 < 0.00092 < 0.00092 < 0.00092 < 0.00023 < 0.00023 ‐‐‐‐‐‐‐‐ < 0.0018 < 0.0017
< 0.00253 < 0.00253 < 0.00253 < 0.00253 < 0.00253 < 0.00253 < 0.00253 < 0.00253 < 0.00058 < 0.00057 < 0.00113 < 0.00113 < 0.00113 < 0.00113 < 0.00113 < 0.00113 < 0.00113 < 0.00113 < 0.00022 < 0.00021 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.0044 < 0.0043 < 0.0137 < 0.0137 < 0.0137 < 0.0137 < 0.0137 < 0.0137 < 0.0137 < 0.0137 < 0.0063 < 0.0062 < 0.0019 < 0.0019 < 0.0019 < 0.0019 < 0.0019 < 0.0019 < 0.0019 < 0.0019 ‐‐ ‐‐‐‐‐‐‐‐‐‐
< 0.0004 < 0.0004 < 0.0004 < 0.0004 < 0.0004 < 0.0004 < 0.0004 < 0.0004 < 0.00013 < 0.00013 < 0.00105 < 0.00105 < 0.00105 < 0.00105 < 0.00105 < 0.00105 < 0.00105 < 0.00105 < 0.00021 < 0.00021 < 0.000788 < 0.000788 < 0.000788 < 0.000788 < 0.000788 < 0.000788 < 0.000788 < 0.000788 < 0.00024 < 0.00023 < 0.00598 < 0.00598 < 0.00598 < 0.00598 < 0.00598 < 0.00598 < 0.00598 < 0.00598 < 0.0008 < 0.00079 < 0.0037 < 0.0037 < 0.0037 < 0.0037 < 0.0037 < 0.0037 < 0.0037 < 0.0037 < 0.0095 < 0.0093 ‐‐‐‐‐‐‐‐ < 0.00031 < 0.0003
< 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00029 < 0.00028 < 0.000573 < 0.000573 < 0.000573 < 0.000573 < 0.000573 < 0.000573 < 0.000573 < 0.000573 < 0.00023 < 0.00022 ‐‐‐‐‐‐‐‐ < 0.0007 < 0.00068
< 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.00108 < 0.0015 < 0.0015 < 0.000415 < 0.000415 < 0.000415 < 0.000415 < 0.000415 < 0.000415 < 0.000415 < 0.000415 < 0.00024 < 0.00024 < 0.00139 < 0.00139 < 0.00139 < 0.00139 < 0.00139 < 0.00139 < 0.00139 < 0.00139 < 0.00031 < 0.0003 < 0.00069 < 0.00069 < 0.00069 < 0.00069 < 0.00069 < 0.00069 < 0.00069 0.0274 < 0.00028 < 0.00028 < 0.000678 < 0.000678 < 0.000678 < 0.000678 < 0.000678 < 0.000678 < 0.000678 < 0.000678 < 0.00026 < 0.00025 ‐‐‐‐‐‐‐‐‐‐
< 0.00233 < 0.00233 < 0.00233 < 0.00233 < 0.00233 < 0.00233 < 0.00233 < 0.00233 < 0.00064 < 0.00062 < 0.00045 < 0.00045 < 0.00045 < 0.00045 < 0.00045 < 0.00045 < 0.00045 < 0.00045 < 0.00058 < 0.00056 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.00078 < 0.00077 < 0.000818 < 0.000818 < 0.000818 < 0.000818 < 0.000818 < 0.000818 < 0.000818 < 0.000818 < 0.00045 < 0.00044 < 0.00035 < 0.00035 < 0.00035 < 0.00035 < 0.00035 < 0.00035 < 0.00035 < 0.00035 ‐‐ < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00015 < 0.00015 < 0.0127 < 0.0127 < 0.0127 < 0.0127 < 0.0127 < 0.0127 < 0.0127 < 0.0127 ‐‐ < 0.000863 < 0.000863 < 0.000863 < 0.000863 < 0.000863 < 0.000863 < 0.000863 < 0.000863 < 0.00055 < 0.00054 ‐‐‐‐‐‐‐‐ < 0.00027 < 0.00027
< 0.000295 < 0.000295 < 0.000295 < 0.000295 < 0.000295 < 0.000295 < 0.000295 < 0.000295 < 0.0003 < 0.00029 < 0.00664 < 0.00664 < 0.00664 < 0.00664 < 0.00664 < 0.00664 < 0.00664 < 0.00664 < 0.0014 < 0.0013 < 0.00312 < 0.00312 < 0.00312 < 0.00312 < 0.00312 < 0.00312 < 0.00312 < 0.00312 < 0.00082 < 0.00081 < 0.00384 < 0.00384 < 0.00384 < 0.00384 < 0.00384 < 0.00384 < 0.00384 < 0.00384 < 0.00016 < 0.00015 HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 66 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
VOCs (mg/kg) ‐
n‐Propylbenzene ‐‐‐
o‐Xylene 6 ‐‐
PHC as Gasoline 5,400 97 ‐
Styrene ‐ 32,000 ‐
Tert‐Amyl Methyl Ether (TAME) ‐‐‐
Tert‐Butyl Alcohol (tert‐Butanol) ‐‐‐
Tert‐Butyl Ethyl Ether (ETBE) ‐‐‐tert‐Butylbenzene ‐‐‐
Tetrachloroethene 2.1 2.7 ‐
Toluene 0.44 5,300 ‐trans‐1,2‐Dichloroethene 0.17 600 ‐ trans‐1,3‐Dichloropropene ‐‐‐
Trichloroethene 27 63 2,040
Trichlorofluoromethane (CFC‐11) ‐ 5,400 ‐
Trifluorotrichloroethane (Freon 113) 6.4 ‐‐
Vinyl acetate ‐‐‐
Vinyl chloride 13 0.15 ‐
Xylene (total) 6 ‐‐
Notes and Abbreviations:

BOLD = concentration detected at or above
reported detection limit.

No COPC in soil exceeded its Total Threshold Limit Concentration (TTLC). < = analyte not detected above the indicated
reporting limit.B = compound detected in the associated blank J = estimated concentration.‐ = not analyzed or not applicable. mg/kg = milligrams per kilogram.
bgs = below ground surface.

GPL: Groundwater Protection Level (Haley & Aldrich 2014a, 2014b) TTLC: Total Threshold Limit Concentration, CCR Title 22 Section 66261.24 1 Cancer Endpoint. If there is no Cancer Endpoint, the Noncancer Endpoint is noted.2 Site background3 U.S. EPA Region 9 Remediation Screening Level DTSC‐SL: Commercial/Industrial Department of Toxic Substances Control‐Screening Level, HHRA Note 3, June 2020.

B29‐34C B29‐34C B29‐35A B29‐35A B29‐35B B29‐35B B29‐35C B29‐35C B99‐01 B99‐01 B29‐34C‐010 B29‐34C‐050 B29‐35A‐010 B29‐35A‐050 B29‐35B‐010 B29‐35B‐050 B29‐35C‐010 B29‐35C‐050 B99‐01‐1 B99‐01‐5 1/8/2020 1/8/2020 1/8/2020 1/8/2020 1/8/2020 1/8/2020 1/8/2020 1/8/2020 6/27/2016 6/27/2016

0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 4.5 ‐ 5 (ft) < 0.00118 < 0.00118 < 0.00118 < 0.00118 < 0.00118 < 0.00118 < 0.00118 < 0.00118 < 0.00051 < 0.0005 ‐‐‐‐‐‐‐‐ < 0.00056 < 0.00055
‐‐‐‐‐‐‐‐‐‐
< 0.00273 < 0.00273 < 0.00273 < 0.00273 < 0.00273 < 0.00273 < 0.00273 < 0.00273 < 0.00061 < 0.0006 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
< 0.00155 < 0.00155 < 0.00155 < 0.00155 < 0.00155 < 0.00155 < 0.00155 < 0.00155 < 0.00015 < 0.00015 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.00021 < 0.00021 < 0.00125 < 0.00125 < 0.00125 < 0.00125 < 0.00125 < 0.00125 < 0.00125 < 0.00125 < 0.00052 < 0.00051 < 0.00143 < 0.00143 < 0.00143 < 0.00143 < 0.00143 < 0.00143 < 0.00143 < 0.00143 < 0.00051 < 0.0005 < 0.00153 < 0.00153 < 0.00153 < 0.00153 < 0.00153 < 0.00153 < 0.00153 < 0.00153 < 0.00061 < 0.0006 < 0.0004 < 0.0004 < 0.0004 < 0.0004 < 0.0004 < 0.0004 < 0.0004 0.00553 < 0.0003 < 0.0003 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.00038 < 0.00037 < 0.000675 < 0.000675 < 0.000675 < 0.000675 < 0.000675 < 0.000675 < 0.000675 < 0.000675 < 0.00036 < 0.00035 ‐‐‐‐‐‐‐‐ < 0.0048 < 0.0047
< 0.000683 < 0.000683 < 0.000683 < 0.000683 < 0.000683 < 0.000683 < 0.000683 < 0.000683 < 0.00051 < 0.0005 < 0.00478 < 0.00478 < 0.00478 < 0.00478 < 0.00478 < 0.00478 < 0.00478 < 0.00478 ‐‐ HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 67 of 102 ends

LocationSample Name
Sample Date
Sample Depth
Metals (mg/kg) GPL DTSC TTLC
Antimony 7.84 ‐ 500
Arsenic 24.3 0.36/82 500
Barium 43000 ‐ 10,000
Beryllium ‐ 6,900 75
Cadmium 970 4,000 100Chromium 660 ‐ 2,500
Chromium VI (Hexavalent) 30 6.2 500
Cobalt ‐‐ 8,000
Copper 5600 ‐ 2,500
Lead 232 320 1,000Mercury 2.1 4.4 20Molybdenum ‐‐ 3,500 Nickel 3400 64,000 2,000Selenium ‐‐ 100Silver ‐‐ 500Thallium ‐‐ 700Vanadium ‐‐ 2,400 Zinc ‐‐ 5,000
‐
PCBs (mg/kg)
Aroclor‐1016 (PCB‐1016) ‐ 17 ‐
Aroclor‐1221 (PCB‐1221) ‐ 0.53 ‐
Aroclor‐1232 (PCB‐1232) ‐ 0.49 ‐
Aroclor‐1242 (PCB‐1242) ‐ 0.58 ‐
Aroclor‐1248 (PCB‐1248) ‐ 0.58 ‐
Aroclor‐1254 (PCB‐1254) ‐ 0.59 ‐
Aroclor‐1260 (PCB‐1260) ‐ 0.6 ‐
Aroclor‐1262 (PCB‐1262) ‐‐‐
Aroclor‐1268 (PCB‐1268) ‐‐‐
Total PCBs 130 0.58 50
‐
PEST (mg/kg)
4,4'‐DDD ‐ 6.2 1.0
4,4'‐DDE ‐ 9.3 1.04,4'‐DDT ‐ 7.1 1.0
Aldrin ‐ 0.18 1.4
alpha‐BHC ‐ 0.24 ‐
beta‐BHC ‐ 0.82 ‐
Chlordane ‐ 6.1 2.5
delta‐BHC ‐‐‐
Dieldrin ‐ 0.093 8.0
Endosulfan I ‐ 6,000 ‐
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
B99‐02 B99‐02 B99‐03 B99‐03 B99‐04 B99‐04 BB‐14 BB‐14 BB‐15 BB‐15 B99‐02‐1 B99‐02‐4 B99‐03‐1 B99‐03‐4 B99‐04‐1 B99‐04‐3 BB‐14‐05 BB‐14‐01 BB‐15‐01 BB‐15‐03 6/27/2016 6/27/2016 6/27/2016 6/27/2016 6/27/2016 6/27/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016

0.5 ‐ 1 (ft) 3.5 ‐ 4 (ft) 0.5 ‐ 1 (ft) 3.5 ‐ 4 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) < 0.155 < 0.148 < 0.145 < 0.151 < 0.145 0.276 J < 0.725 < 0.773 < 0.758 < 0.728

3.06 2.62 2.26 1.47 2.5 2.94 3.11 4.73 3.07 3.44

72.5 394 54 59.1 68.8 136 68.2 80.6 62.1 66.2

0.289 0.434 0.225 J 0.333 0.338 0.462 0.315 0.258 J 0.25 J 0.28

0.481 J 0.411 J 0.298 J 0.309 J 0.368 J 0.429 J 0.449 J 0.438 J 1.03 0.734

16.6 21.1 12.5 16.9 19.6 22.2 16.9 16.6 11.4 14.9
‐‐‐‐

8.87 15 6.44 9.29 9.44 11 9.21 3.84 6.04 7.51

22.2 12.5 3.88 8.35 18 14.3 18.7 8.82 9.2 27.9

33.9 14.5 2.7 3.52 9.95 4 10.7 13.5 11.1 21.3

0.027 J < 0.00578 < 0.00568 < 0.00597 0.0131 J 0.00821 J 0.03 J 0.0000374 J 0.0153 J 0.044 J < 0.137 < 0.131 < 0.129 < 0.134 < 0.129 < 0.126 0.136 J 0.58 0.351 0.201 J

7.98 9.51 4.75 7.72 13.3 10.8 7.64 7.75 6.96 8.2
< 0.312 < 0.298 < 0.292 < 0.304 < 0.292 < 0.285 0.334 J < 0.773 < 0.758 < 0.728 < 0.0893 < 0.0853 < 0.0836 < 0.087 < 0.0836 < 0.0816 < 0.242 < 0.258 < 0.253 < 0.243 < 0.158 < 0.151 < 0.148 0.196 J < 0.148 < 0.144 < 0.725 0.503 J < 0.758 < 0.728 43 67.8 47.3 53.5 52.8 65.6 48.8 29 29.1 40.4
66 46.2 30.7 26.3 54.6 43.9 39.1 B 39.5 B 39.2 61.3 B
< 0.021 < 0.021 < 0.021 < 0.021 < 0.021 < 0.021 < 0.05 < 0.05 < 0.05 < 0.05 < 0.042 < 0.042 < 0.042 < 0.042 < 0.042 < 0.042 < 0.05 < 0.05 < 0.05 < 0.05 < 0.025 < 0.025 < 0.025 < 0.025 < 0.025 < 0.025 < 0.05 < 0.05 < 0.05 < 0.05< 0.037 < 0.037 < 0.037 < 0.037 < 0.037 < 0.037 < 0.05 < 0.05 < 0.05 < 0.05 < 0.032 < 0.032 < 0.032 < 0.032 < 0.032 < 0.032 < 0.05 < 0.05 < 0.05 < 0.05 < 0.031 < 0.032 < 0.031 < 0.032 < 0.031 < 0.032 < 0.05 0.16 0.094 < 0.05 < 0.03 < 0.03 < 0.03 < 0.03 < 0.03 < 0.03 < 0.05 0.11 < 0.05 < 0.05 < 0.034 < 0.035 < 0.034 < 0.035 < 0.034 < 0.035 < 0.05 < 0.05 < 0.05 < 0.05 < 0.033 < 0.033 < 0.033 < 0.033 < 0.033 < 0.033 < 0.05 < 0.05 < 0.05 < 0.05 < 0.042 < 0.042 < 0.042 < 0.042 < 0.042 < 0.042 < 0.05 0.27 0.094 < 0.05 ‐‐ 0.0031 J ‐ 0.031 ‐ ‐‐ < 0.005 ‐
‐‐ 0.024 ‐ 0.18 ‐ ‐‐ < 0.005 ‐
‐‐ 0.0027 J ‐ 0.031 ‐ ‐‐ 0.0027 J ‐
‐‐ < 0.0022 ‐ < 0.0022 ‐ ‐‐ < 0.005 ‐
‐‐ < 0.0037 ‐ < 0.0037 ‐ ‐‐ < 0.01 ‐
‐‐ < 0.0025 ‐ < 0.0025 ‐ ‐‐ < 0.005 ‐
‐‐ < 0.026 ‐ < 0.026 ‐ ‐‐ < 0.05 ‐
‐‐ < 0.0044 ‐ < 0.0044 ‐ ‐‐ < 0.01 ‐
‐‐ < 0.0022 ‐ < 0.0022 ‐ ‐‐ < 0.005 ‐
‐‐ < 0.002 ‐ < 0.002 ‐ ‐‐ < 0.005 ‐
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 68 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
PEST (mg/kg) ‐
Endosulfan II ‐ 6,000 ‐
Endosulfan sulfate ‐ 11,000 ‐
Endrin ‐ 160 0.2
Endrin aldehyde ‐‐‐
Endrin ketone ‐‐‐
gamma‐BHC (Lindane) ‐ 2 4.0
Heptachlor ‐ 0.63 4.7
Heptachlor epoxide ‐ 0.33 ‐
Methoxychlor ‐ 2600 100
Toxaphene ‐ 1.2 5
‐
SVOCs (mg/kg)
1,2,4‐Trichlorobenzene 0.818 35 ‐
1,2‐Dichlorobenzene 28 ‐‐
1,3‐Dichlorobenzene ‐‐‐
1,4‐Dichlorobenzene 0.23 ‐‐
1‐Methylnaphthalene ‐ 30 ‐
2,2'‐oxybis(2‐Chloropropane) ‐‐‐
2,4,5‐Trichlorophenol ‐ 53,000 ‐
2,4,6‐Trichlorophenol ‐ 21 ‐
2,4‐Dichlorophenol ‐ 1,600 ‐
2,4‐Dimethylphenol ‐ 11,000 ‐
2,4‐Dinitrophenol ‐ 1,100 ‐
2,4‐Dinitrotoluene ‐‐‐
2,6‐Dichlorophenol ‐ 4.7 ‐
2,6‐Dinitrotoluene ‐ 0.99 ‐
2‐Chloronaphthalene ‐ 27,000 ‐
2‐Chlorophenol ‐ 3,900 ‐
2‐Methylnaphthalene ‐ 1,300 ‐
2‐Methylphenol (o‐Cresol) ‐ 26,000 ‐
2‐Nitroaniline ‐ 5,200 ‐
2‐Nitrophenol ‐‐‐3,3'‐Dichlorobenzidine ‐ 0.93 ‐
3‐Nitroaniline ‐‐‐
4,6‐Dinitro‐2‐methylphenol ‐ 42 ‐
4‐Bromophenyl phenyl ether ‐‐‐
4‐Chloro‐3‐methylphenol ‐ 53,000 ‐
4‐Chloroaniline ‐ 7.4 ‐
4‐Chlorophenyl phenyl ether ‐‐‐
4‐Nitroaniline ‐ 74 ‐
4‐Nitrophenol ‐‐‐
B99‐02 B99‐02 B99‐03 B99‐03 B99‐04 B99‐04 BB‐14 BB‐14 BB‐15 BB‐15 B99‐02‐1 B99‐02‐4 B99‐03‐1 B99‐03‐4 B99‐04‐1 B99‐04‐3 BB‐14‐05 BB‐14‐01 BB‐15‐01 BB‐15‐03 6/27/2016 6/27/2016 6/27/2016 6/27/2016 6/27/2016 6/27/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016

0.5 ‐ 1 (ft) 3.5 ‐ 4 (ft) 0.5 ‐ 1 (ft) 3.5 ‐ 4 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) ‐‐ < 0.0023 ‐ < 0.0023 ‐ ‐‐ < 0.005 ‐
‐‐ < 0.0026 ‐ < 0.0026 ‐ ‐‐ < 0.005 ‐
‐‐ < 0.0023 ‐ < 0.0023 ‐ ‐‐ < 0.005 ‐
‐‐ < 0.003 ‐ < 0.003 ‐ ‐‐ < 0.005 ‐
‐‐ < 0.0025 ‐ < 0.0025 ‐ ‐‐ < 0.005 ‐
‐‐ < 0.0022 ‐ < 0.0022 ‐ ‐‐ < 0.005 ‐
‐‐ < 0.0022 ‐ < 0.0022 ‐ ‐‐ < 0.005 ‐
‐‐ < 0.0037 ‐ < 0.0037 ‐ ‐‐ < 0.01 ‐
‐‐ < 0.0027 ‐ < 0.0027 ‐ ‐‐ < 0.005 ‐
‐‐ < 0.045 ‐ < 0.045 ‐ ‐‐‐‐
‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐ HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 69 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
SVOCs (mg/kg) ‐
Acenaphthene ‐ 23,000 ‐
Acenaphthylene ‐‐‐Aniline ‐ 260 ‐
Anthracene ‐ 130,000 ‐
Azobenzene ‐‐‐Benzidine ‐ 0.003 ‐
Benzo(a)anthracene ‐ 12 ‐
Benzo(a)pyrene 14 1.3 ‐Benzo(b)fluoranthene ‐ 13 ‐
Benzo(g,h,i)perylene ‐‐‐Benzo(k)fluoranthene ‐ 210,000 ‐ Benzoic acid ‐ 2,100,000 ‐
Benzyl Alcohol ‐ 53,000 ‐
bis(2‐Chloroethoxy)methane ‐ 1,600 ‐
bis(2‐Chloroethyl)ether ‐ 0.47 ‐
bis(2‐Ethylhexyl)phthalate 57 110 ‐
Butyl benzylphthalate ‐ 780 ‐
Chrysene ‐ 1,300 ‐
Dibenz(a,h)anthracene ‐ 0.31 ‐
Dibenzofuran ‐ 650 ‐
Diethyl phthalate ‐ 420,000 ‐Dimethyl phthalate ‐‐‐
Di‐n‐butylphthalate ‐ 53,000 ‐
Di‐n‐octyl phthalate ‐ 5,300 ‐Fluoranthene ‐ 18,000 ‐
Fluorene ‐ 17,000 ‐
Hexachlorobenzene ‐ 0.86 ‐
Hexachlorobutadiene ‐ 5.3 ‐
Hexachlorocyclopentadiene ‐‐‐Hexachloroethane ‐‐‐Indeno(1,2,3‐cd)pyrene ‐ 13 ‐ Isophorone ‐ 1,600 ‐
m,p‐Cresols ‐‐‐
Naphthalene ‐ 6.5 ‐
Nitrobenzene ‐‐‐N‐Nitrosodimethylamine ‐ 0.53 ‐
N‐Nitrosodi‐n‐propylamine ‐ 0.21 ‐
N‐Nitrosodiphenylamine ‐ 300 ‐
Pentachlorophenol 0.0717 2 ‐Phenanthrene ‐‐‐Phenol ‐ 160,000 ‐ Pyrene ‐ 13,000 ‐
Pyridine ‐ 530 ‐
B99‐02 B99‐02 B99‐03 B99‐03 B99‐04 B99‐04 BB‐14 BB‐14 BB‐15 BB‐15 B99‐02‐1 B99‐02‐4 B99‐03‐1 B99‐03‐4 B99‐04‐1 B99‐04‐3 BB‐14‐05 BB‐14‐01 BB‐15‐01 BB‐15‐03 6/27/2016 6/27/2016 6/27/2016 6/27/2016 6/27/2016 6/27/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016

0.5 ‐ 1 (ft) 3.5 ‐ 4 (ft) 0.5 ‐ 1 (ft) 3.5 ‐ 4 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) ‐‐ < 0.004 ‐ < 0.004 ‐ ‐ < 0.015 ‐ ‐
‐‐ < 0.0042 ‐ < 0.0042 ‐ ‐ < 0.03 ‐ ‐
‐‐‐‐‐‐ ‐‐‐‐‐‐ < 0.002 ‐ < 0.002 ‐ ‐ < 0.01 ‐ ‐
‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐ < 0.0025 ‐ < 0.0025 ‐ ‐ 0.0058 J ‐‐ ‐‐ < 0.002 ‐ < 0.002 ‐ ‐ 0.023 ‐‐
‐‐ < 0.0021 ‐ < 0.0021 ‐ ‐ 0.031 ‐‐
‐‐ < 0.0018 ‐ < 0.0018 ‐ ‐ 0.023 ‐‐
‐‐ < 0.0017 ‐ < 0.0017 ‐ ‐ 0.012 ‐‐
‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐ < 0.0021 ‐ < 0.0021 ‐ ‐ 0.013 ‐‐‐‐ < 0.003 ‐ < 0.0029 ‐ ‐ 0.047 ‐‐ ‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐ < 0.0021 ‐ < 0.0021 ‐ ‐ 0.017 ‐‐‐‐ < 0.0017 ‐ < 0.0017 ‐ ‐ < 0.01 ‐ ‐ ‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐ < 0.0022 ‐ < 0.0022 ‐ ‐ 0.083 ‐‐ ‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐ < 0.004 ‐ < 0.004 ‐ ‐ < 0.015 ‐ ‐ ‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐ < 0.0021 ‐ < 0.0021 ‐ ‐ 0.011 ‐‐ ‐‐‐‐‐‐ ‐‐‐‐‐‐ < 0.0029 ‐ < 0.0029 ‐ ‐ 0.018 ‐‐
‐‐‐‐‐‐ ‐‐‐‐
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 70 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
TPH (mg/kg)
PHC as Gasoline 5,400 97 ‐
Total Petroleum Hydrocarbons (C6) ‐‐‐
Total Petroleum Hydrocarbons (C7) ‐‐‐
Total Petroleum Hydrocarbons (C8) ‐‐‐
Total Petroleum Hydrocarbons (C9‐C10) ‐‐‐
Total Petroleum Hydrocarbons (C11‐C12) ‐‐‐
Total Petroleum Hydrocarbons (C13‐C14) ‐‐‐
Total Petroleum Hydrocarbons (C15‐C16) ‐‐‐
Total Petroleum Hydrocarbons (C17‐C18) ‐‐‐
Total Petroleum Hydrocarbons (C19‐C20) ‐‐‐
Total Petroleum Hydrocarbons (C21‐C22) ‐‐‐
Total Petroleum Hydrocarbons (C23‐C24) ‐‐‐
Total Petroleum Hydrocarbons (C25‐C28) ‐‐‐
Total Petroleum Hydrocarbons (C29‐C32) ‐‐‐
Total Petroleum Hydrocarbons (C33‐C36) ‐‐‐
Total Petroleum Hydrocarbons (C37‐C40) ‐‐‐
Total Petroleum Hydrocarbons (C41‐C44) ‐‐‐
Total Petroleum Hydrocarbons (C6‐C44) ‐‐‐
Total Petroleum Hydrocarbons (C10‐C28) Diesel ‐‐‐
Total Petroleum Hydrocarbons (C10‐C28) DRO ‐‐‐
Total Petroleum Hydrocarbons (>C28‐C44) ‐‐‐
Gasoline C6‐C8 (calculated) 2,900 ‐‐
Diesel C9‐C16 (calculated) 5,400 97 ‐
Oil C17‐C32 (calculated) 7,300 2,400 ‐
‐
VOCs (mg/kg)
1,1,1,2‐Tetrachloroethane ‐ 8.8 ‐
1,1,1‐Trichloroethane 1.7 7,200 ‐
1,1,2,2‐Tetrachloroethane ‐ 2.7 ‐
1,1,2‐Trichloroethane 0.04 ‐‐
1,1‐Dichloroethane 0.56 16 ‐
1,1‐Dichloroethene 0.071 350 ‐
1,1‐Dichloropropene ‐‐‐
1,2,3‐Trichlorobenzene ‐ 300 ‐
1,2,3‐Trichloropropane ‐ 0.021 ‐
1,2,3‐Trimethylbenzene ‐‐‐
1,2,4‐Trichlorobenzene 0.818 35 ‐
1,2,4‐Trimethylbenzene ‐‐‐
1,2‐Dibromo‐3‐chloropropane (DBCP) ‐ 0.057 ‐
1,2‐Dibromoethane (Ethylene Dibromide) ‐ 0.16 ‐
1,2‐Dichlorobenzene 28 ‐‐
1,2‐Dichloroethane 0.0028 ‐‐
1,2‐Dichloropropane ‐‐‐
B99‐02 B99‐02 B99‐03 B99‐03 B99‐04 B99‐04 BB‐14 BB‐14 BB‐15 BB‐15 B99‐02‐1 B99‐02‐4 B99‐03‐1 B99‐03‐4 B99‐04‐1 B99‐04‐3 BB‐14‐05 BB‐14‐01 BB‐15‐01 BB‐15‐03 6/27/2016 6/27/2016 6/27/2016 6/27/2016 6/27/2016 6/27/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016

0.5 ‐ 1 (ft) 3.5 ‐ 4 (ft) 0.5 ‐ 1 (ft) 3.5 ‐ 4 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) ‐‐‐‐‐‐ ‐‐‐‐
< 1.2 < 1.3 < 1.2 < 1.2 < 1.2 < 1.3 < 5 < 25 < 5 < 5
< 1.2 < 1.3 < 1.2 < 1.2 < 1.2 < 1.3 < 5 < 25 < 5 < 5
< 1.2 < 1.3 < 1.2 < 1.2 < 1.2 < 1.3 < 5 < 25 < 5 < 5
< 1.2 < 1.3 < 1.2 < 1.2 < 1.2 < 1.3 < 5 < 25 3.4 J < 5
< 1.2 < 1.3 < 1.2 < 1.2 < 1.2 < 1.3 < 5 < 25 1.5 J < 5
< 1.2 < 1.3 < 1.2 < 1.2 < 1.2 < 1.3 < 5 < 25 < 5 < 5
< 1.2 < 1.3 < 1.2 < 1.2 < 1.2 < 1.3 < 5 < 25 < 5 < 5
< 1.2 < 1.3 < 1.2 < 1.2 < 1.2 < 1.3 < 5 < 25 < 5 < 5
< 1.2 < 1.3 < 1.2 < 1.2 < 1.2 < 1.3 < 5 < 25 1.4 J < 5
2 J < 1.3 < 1.2 < 1.2 1.4 J < 1.3 < 5 < 25 3.3 J < 5
< 1.2 < 1.3 1.3 J < 1.2 1.4 J 1.6 J < 5 < 25 < 5 < 5
16 1.4 J 2.6 J < 1.2 2.4 J 1.9 J < 5 < 25 4.4 J < 5
43 1.7 J 6.4 < 1.2 6.5 3 J < 5 38 26 3.3 J
59 < 1.3 9.3 < 1.2 28 2.4 J < 5 38 34 < 5
54 < 1.3 7.6 < 1.2 4.3 J 12 < 5 33 41 < 5
39 < 1.3 < 1.2 < 1.2 6.9 < 1.3 < 5 12 J 24 < 5
210 3.1 J 27 < 1.3 51 21 < 5 120 140 3.3 J
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐
< 1.2 < 1.3 < 1.2 < 1.2 < 1.2 < 1.3 < 5 < 25 < 5 < 5
< 1.2 < 1.3 < 1.2 < 1.2 < 1.2 < 1.3 < 5 < 25 4.9 < 5
61 3.1 10.3 < 1.2 11.7 6.5 < 5 38 35.1 3.3
< 0.00024 < 0.00025 < 0.00025 < 0.00024 < 0.00025 < 0.00024 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00023 < 0.00023 < 0.00023 < 0.00022 < 0.00023 < 0.00023 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00035 < 0.00035 < 0.00036 < 0.00034 < 0.00036 < 0.00035 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00036 < 0.00036 < 0.00037 < 0.00035 < 0.00036 < 0.00035 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00021 < 0.00022 < 0.00022 < 0.00021 < 0.00022 < 0.00021 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00035 < 0.00035 < 0.00036 < 0.00034 < 0.00036 < 0.00035 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00033 < 0.00034 < 0.00034 < 0.00033 < 0.00034 < 0.00033 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00092 < 0.00093 < 0.00095 < 0.00091 < 0.00094 < 0.00091 < 0.01 < 0.0098 < 0.01 < 0.01 < 0.00084 < 0.00085 < 0.00086 < 0.00083 < 0.00085 < 0.00083 < 0.0052 < 0.0049 < 0.0051 < 0.005 ‐‐‐‐‐‐ ‐‐‐‐
< 0.00031 < 0.00032 < 0.00032 < 0.00031 < 0.00032 < 0.00031 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00059 < 0.0006 < 0.00061 < 0.00058 < 0.0006 < 0.00059 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.0017 < 0.0018 < 0.0018 < 0.0017 < 0.0018 < 0.0017 < 0.01 < 0.0098 < 0.01 < 0.01 < 0.00026 < 0.00026 < 0.00027 < 0.00025 < 0.00026 < 0.00026 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00023 < 0.00023 < 0.00024 < 0.00023 < 0.00024 < 0.00023 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00032 < 0.00032 < 0.00033 < 0.00031 < 0.00032 < 0.00031 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00044 < 0.00045 < 0.00046 < 0.00044 < 0.00045 < 0.00044 < 0.0052 < 0.0049 < 0.0051 < 0.005 HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 71 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
VOCs (mg/kg) ‐
1,3,5‐Trimethylbenzene ‐‐‐
1,3‐Dichlorobenzene ‐‐‐
1,3‐Dichloropropane ‐ 2,200 ‐
1,4‐Dichloro‐2‐butene ‐‐‐
1,4‐Dichlorobenzene 0.23 ‐‐
2,2‐Dichloropropane ‐‐‐
2‐Butanone (Methyl Ethyl Ketone) ‐‐‐
2‐Chlorotoluene ‐ 2,500 ‐
2‐Hexanone ‐‐‐2‐Phenylbutane (sec‐Butylbenzene) ‐ 12,000 ‐ 4‐Chlorotoluene ‐ 2,300 ‐
4‐Methyl‐2‐Pentanone (Methyl Isobutyl Ketone) ‐‐‐
Acetone ‐‐‐Acrylonitrile ‐‐‐Allyl chloride ‐‐‐
Benzene 0.019 1.4 ‐Bromobenzene ‐‐‐Bromodichloromethane ‐ 1.3 ‐ Bromoform ‐ 86 ‐
Bromomethane (Methyl Bromide) ‐‐‐
Carbon disulfide ‐‐‐
Carbon tetrachloride ‐ 2.9 ‐
Chlorobenzene 2 ‐‐Chlorobromomethane ‐ 4.1 ‐
Chloroethane ‐‐‐Chloroform (Trichloromethane) ‐‐‐
Chloromethane (Methyl Chloride) ‐‐‐
cis‐1,2‐Dichloroethene 4.9 84 ‐
cis‐1,3‐Dichloropropene ‐‐‐
cis‐1,4‐Dichloro‐2‐butene ‐‐‐Cymene (p‐Isopropyltoluene) ‐ 1,600 ‐ Dibromochloromethane ‐‐‐Dibromomethane ‐‐‐Dichlorodifluoromethane (CFC‐12) ‐‐‐ Diisopropyl ether (DIPE) ‐‐‐
Ethylbenzene 7.7 ‐‐Hexachlorobutadiene ‐ 5.3 ‐
Isopropylbenzene (Cumene) ‐‐‐
m,p‐Xylenes 6 ‐‐
Methyl Tert Butyl Ether ‐‐‐
Methylene chloride 0.019 26 ‐
Naphthalene ‐ 6.5 ‐
n‐Butylbenzene ‐‐‐
B99‐02 B99‐02 B99‐03 B99‐03 B99‐04 B99‐04 BB‐14 BB‐14 BB‐15 BB‐15 B99‐02‐1 B99‐02‐4 B99‐03‐1 B99‐03‐4 B99‐04‐1 B99‐04‐3 BB‐14‐05 BB‐14‐01 BB‐15‐01 BB‐15‐03 6/27/2016 6/27/2016 6/27/2016 6/27/2016 6/27/2016 6/27/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016

0.5 ‐ 1 (ft) 3.5 ‐ 4 (ft) 0.5 ‐ 1 (ft) 3.5 ‐ 4 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) < 0.00055 < 0.00056 < 0.00057 < 0.00055 < 0.00056 < 0.00055 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00018 < 0.00018 < 0.00018 < 0.00018 < 0.00018 < 0.00018 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00025 < 0.00026 < 0.00026 < 0.00025 < 0.00026 < 0.00025 < 0.0052 < 0.0049 < 0.0051 < 0.005 ‐‐‐‐‐‐ ‐‐‐‐
< 0.00022 < 0.00023 < 0.00023 < 0.00022 < 0.00023 < 0.00022 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00033 < 0.00034 < 0.00034 < 0.00033 < 0.00034 < 0.00033 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.0038 < 0.0039 < 0.0039 < 0.0037 < 0.0039 < 0.0038 < 0.052 < 0.049 < 0.051 < 0.05 < 0.00023 < 0.00024 < 0.00024 < 0.00023 < 0.00024 < 0.00023 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.0018 < 0.0018 < 0.0018 < 0.0018 < 0.0018 < 0.0018 < 0.052 < 0.049 < 0.051 < 0.05 < 0.00058 < 0.00059 < 0.0006 < 0.00057 < 0.00059 < 0.00058 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00021 < 0.00022 < 0.00022 < 0.00021 < 0.00022 < 0.00021 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.0043 < 0.0044 < 0.0045 < 0.0043 < 0.0044 < 0.0043 < 0.052 < 0.049 < 0.051 < 0.05 < 0.0063 < 0.0064 < 0.0065 < 0.0062 < 0.0064 < 0.0062 < 0.13 0.015 J < 0.13 < 0.13 ‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐
< 0.00013 < 0.00013 < 0.00014 < 0.00013 < 0.00013 < 0.00013 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00021 < 0.00021 < 0.00022 < 0.00021 < 0.00022 < 0.00021 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00023 < 0.00024 < 0.00024 < 0.00023 < 0.00024 < 0.00023 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.0008 < 0.00081 < 0.00083 < 0.00079 < 0.00082 < 0.00079 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.0095 < 0.0096 < 0.0098 < 0.0094 < 0.0097 < 0.0094 < 0.026 < 0.025 < 0.026 < 0.025 < 0.00031 < 0.00031 < 0.00032 < 0.0003 < 0.00031 < 0.00031 < 0.052 < 0.049 < 0.051 < 0.05 < 0.00028 < 0.00029 < 0.00029 < 0.00028 < 0.00029 < 0.00028 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00023 < 0.00023 < 0.00023 < 0.00022 < 0.00023 < 0.00022 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00069 < 0.00071 < 0.00072 < 0.00069 < 0.00071 < 0.00069 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.0015 < 0.0015 < 0.0016 < 0.0015 < 0.0015 < 0.0015 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00024 < 0.00024 < 0.00025 < 0.00024 < 0.00025 < 0.00024 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00031 < 0.00031 < 0.00032 < 0.0003 < 0.00031 < 0.0003 < 0.026 < 0.025 < 0.026 < 0.025 < 0.00028 < 0.00029 < 0.00029 < 0.00028 < 0.00029 < 0.00028 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00026 < 0.00026 < 0.00027 < 0.00025 < 0.00026 < 0.00025 < 0.0052 < 0.0049 < 0.0051 < 0.005 ‐‐‐‐‐‐ ‐‐‐‐
< 0.00063 < 0.00064 < 0.00066 < 0.00063 < 0.00065 < 0.00063 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00057 < 0.00058 < 0.00059 < 0.00057 < 0.00059 < 0.00057 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00078 < 0.00079 < 0.00081 < 0.00077 < 0.0008 < 0.00077 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00045 < 0.00045 < 0.00046 < 0.00044 < 0.00046 < 0.00044 < 0.0052 < 0.0049 < 0.0051 < 0.005 ‐‐‐‐‐‐ ‐‐‐‐
< 0.00015 < 0.00015 < 0.00016 < 0.00015 < 0.00016 < 0.00015 < 0.0052 < 0.0049 < 0.0051 < 0.005 ‐‐‐‐‐‐ ‐‐‐‐
< 0.00055 < 0.00056 < 0.00057 < 0.00054 < 0.00056 < 0.00055 < 0.0052 < 0.0049 < 0.0051 < 0.005

0.00076 J < 0.00027 < 0.00028 < 0.00027 < 0.00028 < 0.00027 < 0.0052 0.00082 J 0.00045 J < 0.005 < 0.0003 < 0.0003 < 0.00031 < 0.00029 < 0.0003 < 0.0003 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.0013 < 0.0014 < 0.0014 < 0.0013 < 0.0014 < 0.0013 < 0.052 < 0.049 0.0019 J < 0.05 < 0.00082 < 0.00083 < 0.00085 < 0.00081 < 0.00084 < 0.00081 < 0.052 < 0.049 < 0.051 < 0.05 < 0.00016 < 0.00016 < 0.00016 < 0.00016 < 0.00016 < 0.00016 < 0.0052 < 0.0049 < 0.0051 < 0.005 HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

Page 72 of 102 ends

LocationSample Name
Sample Date
Sample Depth
GPL
(mg/kg)
Comm/Ind
DTSC‐
SL1(mg/kg)
TTLC
(mg/kg)
VOCs (mg/kg) ‐
n‐Propylbenzene ‐‐‐
o‐Xylene 6 ‐‐
PHC as Gasoline 5,400 97 ‐
Styrene ‐ 32,000 ‐
Tert‐Amyl Methyl Ether (TAME) ‐‐‐
Tert‐Butyl Alcohol (tert‐Butanol) ‐‐‐
Tert‐Butyl Ethyl Ether (ETBE) ‐‐‐tert‐Butylbenzene ‐‐‐
Tetrachloroethene 2.1 2.7 ‐
Toluene 0.44 5,300 ‐trans‐1,2‐Dichloroethene 0.17 600 ‐ trans‐1,3‐Dichloropropene ‐‐‐
Trichloroethene 27 63 2,040
Trichlorofluoromethane (CFC‐11) ‐ 5,400 ‐
Trifluorotrichloroethane (Freon 113) 6.4 ‐‐
Vinyl acetate ‐‐‐
Vinyl chloride 13 0.15 ‐
Xylene (total) 6 ‐‐
Notes and Abbreviations:

BOLD = concentration detected at or above
reported detection limit.

No COPC in soil exceeded its Total Threshold Limit Concentration (TTLC). < = analyte not detected above the indicated
reporting limit.B = compound detected in the associated blank J = estimated concentration.‐ = not analyzed or not applicable. mg/kg = milligrams per kilogram.
bgs = below ground surface.

GPL: Groundwater Protection Level (Haley & Aldrich 2014a, 2014b) TTLC: Total Threshold Limit Concentration, CCR Title 22 Section 66261.24 1 Cancer Endpoint. If there is no Cancer Endpoint, the Noncancer Endpoint is noted.2 Site background3 U.S. EPA Region 9 Remediation Screening Level DTSC‐SL: Commercial/Industrial Department of Toxic Substances Control‐Screening Level, HHRA Note 3, June 2020.

B99‐02 B99‐02 B99‐03 B99‐03 B99‐04 B99‐04 BB‐14 BB‐14 BB‐15 BB‐15 B99‐02‐1 B99‐02‐4 B99‐03‐1 B99‐03‐4 B99‐04‐1 B99‐04‐3 BB‐14‐05 BB‐14‐01 BB‐15‐01 BB‐15‐03 6/27/2016 6/27/2016 6/27/2016 6/27/2016 6/27/2016 6/27/2016 6/28/2016 6/28/2016 6/28/2016 6/28/2016

0.5 ‐ 1 (ft) 3.5 ‐ 4 (ft) 0.5 ‐ 1 (ft) 3.5 ‐ 4 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) 4.5 ‐ 5 (ft) 0.5 ‐ 1 (ft) 0.5 ‐ 1 (ft) 2.5 ‐ 3 (ft) < 0.0005 < 0.00051 < 0.00052 < 0.0005 < 0.00052 < 0.0005 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00056 < 0.00057 < 0.00058 < 0.00055 < 0.00057 < 0.00056 < 0.0052 < 0.0049 < 0.0051 < 0.005 ‐‐‐‐‐‐‐‐‐‐
< 0.00061 < 0.00062 < 0.00063 < 0.0006 < 0.00062 < 0.0006 < 0.0052 < 0.0049 < 0.0051 < 0.005 ‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐
< 0.00015 < 0.00015 < 0.00016 < 0.00015 < 0.00016 < 0.00015 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00021 < 0.00021 < 0.00022 < 0.00021 < 0.00022 < 0.00021 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00052 < 0.00053 < 0.00054 < 0.00051 < 0.00053 < 0.00052 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00051 < 0.00052 < 0.00053 < 0.0005 < 0.00052 < 0.00051 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00061 < 0.00062 < 0.00063 < 0.0006 < 0.00062 < 0.00061 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.0003 < 0.00031 < 0.00031 < 0.0003 < 0.00031 < 0.0003 < 0.0052 < 0.0049 < 0.0051 < 0.005 < 0.00038 < 0.00038 < 0.00039 < 0.00037 < 0.00039 < 0.00038 < 0.052 < 0.049 < 0.051 < 0.05 < 0.00035 < 0.00036 < 0.00037 < 0.00035 < 0.00036 < 0.00035 < 0.052 < 0.049 < 0.051 < 0.05 < 0.0048 < 0.0049 < 0.0049 < 0.0047 < 0.0049 < 0.0047 < 0.052 < 0.049 < 0.051 < 0.05 < 0.00051 < 0.00051 < 0.00052 < 0.0005 < 0.00052 < 0.0005 < 0.0052 < 0.0049 < 0.0051 < 0.005 ‐‐‐‐‐‐ ‐‐‐‐
HALEY & ALDRICH, INC.
2021_04_HAI_Table 2_Soil Summary_F.xlsx APRIL 2021
TABLE 2

SUMMARY OF VADOSE ZONE SOIL DATA
ROHR, INC. ‐ PARCEL A

CHULA VISTA, CALIFORNIA

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