Laguna Hills City Council
January 27, 2026

Topographic Map Symbols
US Topo Map Symbols
We have searched USGS collections of current topographic maps and historical topographic maps for the project property. Below is a list of maps found for the project property and adjacent area. Maps are from 7.5 and 15 minute topographic map series, if available.

Year Map Series

1942 15
1948 7.5
1949 7.5
1968 7.5
1974 7.5
1978 7.5
1981 7.5
2015 7.5
2018 7.5
2022 7.5

(1-1942)
1942 Aerial Photo Year: 1939
Source: USGS 15 Minute Topographic Map
Order No. 22082304257
0 0.125 0.25 0.5
Miles
Santiago Peak, CA(1-1942)
¯
Quadrangle(s):

(1-1948)
1948 Aerial Photo Year: 1946
Source: USGS 7.5 Minute Topographic Map
Order No. 22082304257
0 0.125 0.25 0.5
Miles
San Juan Capistrano, CA(1-1948)
¯
Quadrangle(s):

(1
-1949)
AerialPhotoYear:1946
(2-1949)
1949
AerialPhotoYear:1946
Source:USGS7.5MinuteTopographicMap
OrderNo.22082304257

00.1250.250.5M
iles
SanJuanCapistrano,CA
(1-1949)
ElToro,CA
(2-1949)
¯
Quadrangle(s):

(1
-1968)
AerialPhotoYear:1967
(2-1968)
1968
AerialPhotoYear:1967
Source:USGS7.5MinuteTopographicMap
OrderNo.22082304257

00.1250.250.5M
iles
SanJuanCapistrano,CA
(2-1968)
ElToro,CA
(1-1968)
¯
Quadrangle(s):

(1
-1974)
AerialPhotoYear:1974
(2-1974)
1974
AerialPhotoYear:1974
Source:USGS7.5MinuteTopographicMap
OrderNo.22082304257

00.1250.250.5M
iles
SanJuanCapistrano,CA
(2-1974)
ElToro,CA
(1-1974)
¯
Quadrangle(s):

(1
-1978)
AerialPhotoYear:1974
PhotoRevisionYear:1978
(2-1978)
AerialPhotoYear:1974
PhotoRevisionYear:1978
1978
Source:USGS7.5MinuteTopographicMap
OrderNo.22082304257

00.1250.250.5M
iles
SanJuanCapistrano,CA
(2-1978)
ElToro,CA
(1-1978)
¯
Quadrangle(s):

(1
-1981)
AerialPhotoYear:1978
PhotoRevisionYear:1981
(2-1981)
1981
AerialPhotoYear:1977
Source:USGS7.5MinuteTopographicMap
OrderNo.22082304257

00.1250.250.5M
iles
SanJuanCapistrano,CA
(2-1981)
ElToro,CA
(1-1981)
¯
Quadrangle(s):

2 015
Source:USGS7.5MinuteTopographicMap
OrderNo.22082304257

00.1250.250.5M
iles
SanJuanCapistrano,CA
LakeForest,CA
¯
Quadrangle(s):

2 018
Source:USGS7.5MinuteTopographicMap
OrderNo.22082304257

00.1250.250.5M
iles
SanJuanCapistrano,CA
LakeForest,CA
¯
Quadrangle(s):

2 022
Source:USGS7.5MinuteTopographicMap
OrderNo.22082304257

00.1250.250.5M
iles
SanJuanCapistrano,CA
LakeForest,CA
¯
Quadrangle(s):

Certificate of Use and Occupancy

CITY OF LAGUNA HILLS
24035 EL TORO ROAD  LAGUNA HILLS, CALIFORNIA 92653
(949) 707-2600
This Certificate issued pursuant to the requirements of Section 109 of the Uniform Building Code certifying that at the time of issuance this structure was in compliance with the various ordinances of the City regulating building construction or use, for the following Business Name: FAIRBANKS AND POWER PHYSICAL THERAPY CORP Address where business
will be conducted:

DBA PACIFIC PRO PHYSICAL THERAPY AND SPORTS MEDICINE 24422 AVENIDA DE LA CARLOTA STE 100 Business Owner: BRET FAIRBANKS Business Phone: (949)716-2730 Permit # : CO-0118-2020 Occupancy Group: B Type of Construction: I-B Occupancy Description: OUTPATIENT PHYSICAL THERAPY

PLANNING DEPARTMENT
Date Approved: 12/14/2020 By:

BUILDING DEPARTMENT
Date Approved: 12/14/2020 By:

Certificate of Use and Occupancy

CITY OF LAGUNA HILLS
24035 EL TORO ROAD  LAGUNA HILLS, CALIFORNIA 92653
(949) 707-2600
This Certificate issued pursuant to the requirements of Section 109 of the Uniform Building Code certifying that at the time of issuance this structure was in compliance with the various ordinances of the City regulating building construction or use, for the following Business Name: ORANGE COAST ORTHODONTICS/JUNGLE OF SMILES Address where business
will be conducted: 24422 AVENIDA DE LA CARLOTA # 120, LAGUNA HILLS, CA 92653 Business Owner: DR. BOBBY GHANDEHARI Business Phone: (949)305-0550 Permit # : COM-5-14-9186 Occupancy Group: B Type of Construction: I-B Occupancy Description: ORTHODONTICS; PEDIATRIC DENTISTRY

PLANNING DEPARTMENT
Date Approved: 02/02/2021 By:

BUILDING DEPARTMENT
Date Approved: 02/02/2021 By:

Site Report
AT&T Mobility - ALICIA PKWY/5 FWY
(USID12467)
24422 AVENIDA DE LA CARLOTA
LAGUNA HILLS, CA 92653
County Orange County
CalEnviroscreen 3.0 Percentile
Range
46-50%
SIC Codes
4812 Radiotelephone communications
NAICS Codes
Alternate IDs
Dun & Bradstreet Number 102026754
Facilities Explorer ID 555235
Facility Identifier FA0044241
Regulatory Programs
Description Source System Program Id Start Date End Date Chemical Storage Facilities California Environmental Reporting System10447036 07/10/2013 Site Contacts
Name Title Phone Address
AT&T EH&S Hotline - Option #1 308 S. Akard St., 17th Floor Dallas, TX 75202
CalEPA Regulated Site Portal | Site Report | AT&T Mobility - ALICIA PKWY/5 FWY (USID12467) | 08/23/2022

Name Title Phone Address
AT&T Mobility (800) 566-9347
Jeremy McGrue National EPCRA Manager
Mailing Address 308 S. Akard St., 17th Floor
Dallas, TX 75202
New Cingular Wireless PCS, LLC
dba AT&T Mobility
(214) 464-1712 308 S. Akard St., 17th Floor
Dallas, TX 75202
Orange County Env Health (714) 433-6406 1241 East Dyer RoadSuite 120 Santa Ana, CA 92705-5611
Peter Burnell, Sigma Consultants, Inc.

CalEPA Regulated Site Portal | Site Report | AT&T Mobility - ALICIA PKWY/5 FWY (USID12467) | 08/23/2022

9/7/22, 10:48 AM Hazardous Waste Tracking System: Handler Profile CAC002960004 https://hwts.dtsc.ca.gov/facility/CAC002960004 1/2
Home Search Handler Profile
CAC002960004 - KEYENCE CORPORTATION OF AMERICA Status: INACTIVE Handler Profile


Esri Community Maps Contributors, City of Irvine, County of Los Angeles, California State Parks, © OpenStreetMap, Microsoft, Esri, HERE, Garmin, SafeGraph, GeoTechnolog… Powered by Esri ID Number Profile
ID Number: CAC002960004
Facility Name: KEYENCE CORPORTATION OF AMERICA
Status: INACTIVE (expired: 8/2/2018)
ID Type: TEMPORARY
ID Category: STATE
Entity Types:

Issued Date: 5/2/2018
Last Updated: 8/2/2018
Facility Address
24422 AVENIDA DE LA
CARLOTA STE 200
LAGUNA BEACH, CA 92653
ORANGE County
(33.608654, -117.700554)
Mailing Address
669 RIVER DR STE 403
ELMWOOD PARK , NJ 88853
Owner

KEYENCE CORPORATION OF AMERICA
669 RIVER DR STE 403
ELMWOOD PARK , NJ 88853
(888) 539-3623
Contact

BRIAN GAEHRING
24422 AVENIDA DE LA CARLOTA STE 200
LAGUNA BEACH, CA 92653
(888) 539-3623
CalEnviroScreen 4.0 Results
Census Tract: 6059062647 (Population: 4553)
The results for each indicator range from 0-100 and represent the percentile ranking of census tract 6059062647 relative to other census tracts.

Overall Percentiles
CalEnviroScreen: 52
Pollution Burden: 69
Population Characteristics: 38
Environmental Effects
Cleanup Sites: 41
Groundwater Threats: 60
Hazardous Waste: 48
Solid Waste: 36
NAICS Codes
99999 Not Otherwise Specified
Annual ID Number Verification History
0 to 0 of 0 Page 0 of 0
Year Status Method VQ Number (eV No results found matching your search critera. Q) Completion Date Signed By Page Size: 10    

9/7/22, 10:48 AM Hazardous Waste Tracking System: Handler Profile CAC002960004 https://hwts.dtsc.ca.gov/facility/CAC002960004 2/2
Back to Top Disclaimer & Data Limitations Accessibility Contact Us Copyright ©  2022 State of California
Manifests 3
Manifest Per Year by Handler Type
2018
2019
0 0.5
1 1.5
2 Tonnage Handled Per Year by Handler Type
2018
2019
0 0.03

0.06 0.09

0.12 Manifest Counts and Total Tonnage
Export CSV
Generator Transporter TSDF
Year Count Tons Count Tons Count Tons
2019 1 0.0275 0 0 0 0
2018 2 0.1165 0 0 0 0
Waste CodeMatrix 5

9/7/22, 10:47 AM Hazardous Waste Tracking System: Handler Profile CAL000413079 https://hwts.dtsc.ca.gov/facility/CAL000413079 1/2
Home Search Handler Profile
CAL000413079 - KEYENCE CORPORATION OF AMERICA Status: ACTIVE Handler Profile


Esri Community Maps Contributors, City of Irvine, County of Los Angeles, California State Parks, Esri, HERE, Garmin, SafeGraph, GeoTechnologies, Inc, METI/NASA, USGS, B… Powered by Esri ID Number Profile
ID Number: CAL000413079
Facility Name: KEYENCE CORPORATION OF AMERICA
Status: ACTIVE
ID Type: PERMANENT
ID Category: STATE
Entity Types: GENERATOR
Issued Date: 12/9/2015
Last Updated: 8/30/2022
Facility Address
24422 AVENIDA DE LA
CARLOTA STE 200
LAGUNA HILLS, CA 92653
ORANGE County
(33.608012, -117.69945301)
Mailing Address
669 RIVER DR STE 403
ELMWOOD PARK, NJ 07407
Owner

KEYENCE CORP OF AMERICA
669 RIVER DR STE 403
ELMWOOD PARK, NJ 07407
(888) 539-3623
Contact

LEGAL DEPARTMENT
669 RIVER DR STE 403
ELMWOOD PARK, NJ 07407
(888) 539-3623
CalEnviroScreen 4.0 Results
Census Tract: 6059062647 (Population: 4553)
The results for each indicator range from 0-100 and represent the percentile ranking of census tract 6059062647 relative to other census tracts.

Overall Percentiles
CalEnviroScreen: 52
Pollution Burden: 69
Population Characteristics: 38
Environmental Effects
Cleanup Sites: 41
Groundwater Threats: 60
Hazardous Waste: 48
Solid Waste: 36
NAICS Codes
42183 Industrial Machinery and Equipment Wholesalers
Annual ID Number Verification History
Year Status Method VQ Number (eVQ) Completion Date
2022 COMPLETE eVQ 202278803 8/30/2022
2021 COMPLETE eVQ 202178803 8/2/2021

9/7/22, 10:47 AM Hazardous Waste Tracking System: Handler Profile CAL000413079 https://hwts.dtsc.ca.gov/facility/CAL000413079 2/2
Back to Top Disclaimer & Data Limitations Accessibility Contact Us Copyright ©  2022 State of California
1 to 5 of 5 Page 1 of 1
2020 COMPLETE eVQ 202078803 8/3/2020
2019 COMPLETE eVQ 201978803 9/6/2019
2018 COMPLETE eVQ 201878803 12/14/2018
Page Size: 10    
Manifests 3
Manifest Per Year by Handler Type
2016
2018201920212022
0 0.75

1.5 2.25
3 Tonnage Handled Per Year by Handler Type
2016
2018201920212022
0 0.045

0.09 0.135

0.18 Manifest Counts and Total Tonnage
Export CSV
Generator Transporter TSDF
Year Count Tons Count Tons Count Tons
2022 2 0.054 0 0 0 0
2021 2 0.085 0 0 0 0
2019 3 0.095 0 0 0 0
2018 1 0.005 0 0 0 0
2016 1 0.17 0 0 0 0
Waste CodeMatrix 5

9/7/22, 10:47 AM Hazardous Waste Tracking System: Handler Profile CAC002569841 https://hwts.dtsc.ca.gov/facility/CAC002569841 1/2
Home Search Handler Profile
CAC002569841 - SCHINDLER ELEVATOR CORP Status: INACTIVE Handler Profile


Esri Community Maps Contributors, City of Irvine, County of Los Angeles, California State Parks, © OpenStreetMap, Microsoft, Esri, HERE, Garmin, SafeGraph, GeoTechnolog… Powered by Esri ID Number Profile
ID Number: CAC002569841
Facility Name: SCHINDLER ELEVATOR CORP
Status: INACTIVE (expired: 6/22/2004)
ID Type: TEMPORARY
ID Category: STATE
Entity Types: GENERATOR
Issued Date: 9/8/2003
Last Updated: 9/8/2003
Facility Address
24422 AVENIDA DE LA

CARLOTA
LAGUNA HILLS, CA 92653
ORANGE County
(33.608654, -117.700554)
Mailing Address
18005 SKYPARK CIR #A&B
IRVINE, CA 92614
Owner

NIKI SCHINDLER
18005 SKYPARK CIR #A&B
IRVINE, CA 92614
(949) 251-8762
Contact

CAROL HOLT-MILLER/ACCT REP
18005 SKYPARK CIR #A&B
IRVINE, CA 92614
(949) 251-8762
CalEnviroScreen 4.0 Results
Census Tract: 6059062647 (Population: 4553)
The results for each indicator range from 0-100 and represent the percentile ranking of census tract 6059062647 relative to other census tracts.

Overall Percentiles
CalEnviroScreen: 52
Pollution Burden: 69
Population Characteristics: 38
Environmental Effects
Cleanup Sites: 41
Groundwater Threats: 60
Hazardous Waste: 48
Solid Waste: 36
NAICS Codes
Annual ID Number Verification History
0 to 0 of 0 Page 0 of 0
Year Status Method VQ Number (eV No results found matching your search critera. Q) Completion Date Signed By Page Size: 10    

9/7/22, 10:47 AM Hazardous Waste Tracking System: Handler Profile CAC002569841 https://hwts.dtsc.ca.gov/facility/CAC002569841 2/2
Back to Top Disclaimer & Data Limitations Accessibility Contact Us Copyright ©  2022 State of California
No Manifest Data for this ID Number.

Manifests 3
Waste CodeMatrix 5

9/7/22, 10:47 AM Hazardous Waste Tracking System: Handler Profile CAC002935118 https://hwts.dtsc.ca.gov/facility/CAC002935118 1/2
Home Search Handler Profile
CAC002935118 - KEYENCE CORPORTATION OF AMERICA Status: INACTIVE Handler Profile


Esri Community Maps Contributors, City of Irvine, County of Los Angeles, California State Parks, © OpenStreetMap, Microsoft, Esri, HERE, Garmin, SafeGraph, GeoTechnolog… Powered by Esri ID Number Profile
ID Number: CAC002935118
Facility Name: KEYENCE CORPORTATION OF AMERICA
Status: INACTIVE (expired: 2/2/2018)
ID Type: TEMPORARY
ID Category: STATE
Entity Types:

Issued Date: 11/2/2017
Last Updated: 2/2/2018
Facility Address
24422 AVENIDA DE LA
CARLOTA STE 200
LAGUNA BEACH, CA 92653
ORANGE County
(33.608654, -117.700554)
Mailing Address
669 RIVER DR STE 403
ELMWOOD PARK, NJ 88853
Owner

KEYENCE CORPORATION OF AMERICA
669 RIVER DR STE 403
ELMWOOD PARK, NJ 88853
(888) 539-3623
Contact

BRIAN GAEHRING
24422 AVENIDA DE LA CARLOTA STE 200
LAGUNA BEACH, CA 92653
(888) 539-3623
CalEnviroScreen 4.0 Results
Census Tract: 6059062647 (Population: 4553)
The results for each indicator range from 0-100 and represent the percentile ranking of census tract 6059062647 relative to other census tracts.

Overall Percentiles
CalEnviroScreen: 52
Pollution Burden: 69
Population Characteristics: 38
Environmental Effects
Cleanup Sites: 41
Groundwater Threats: 60
Hazardous Waste: 48
Solid Waste: 36
NAICS Codes
Annual ID Number Verification History
0 to 0 of 0 Page 0 of 0
Year Status Method VQ Number (eV No results found matching your search critera. Q) Completion Date Signed By Page Size: 10    

9/7/22, 10:47 AM Hazardous Waste Tracking System: Handler Profile CAC002935118 https://hwts.dtsc.ca.gov/facility/CAC002935118 2/2
Back to Top Disclaimer & Data Limitations Accessibility Contact Us Copyright ©  2022 State of California
Manifests 3
Manifest Per Year by Handler Type
2017
2018
0 0.5
1 1.5
2 Tonnage Handled Per Year by Handler Type
2017
2018
0 0.015

0.03 0.045

0.06 Manifest Counts and Total Tonnage
Export CSV
Generator Transporter TSDF
Year Count Tons Count Tons Count Tons
2018 2 0.029 0 0 0 0
2017 2 0.05 0 0 0 0
Waste CodeMatrix 5

9/7/22, 10:48 AM Hazardous Waste Tracking System: Handler Profile CAC002949233 https://hwts.dtsc.ca.gov/facility/CAC002949233 1/2
Home Search Handler Profile
CAC002949233 - KEYENCE CORPORATION OF AMERICA Status: INACTIVE Handler Profile


Esri Community Maps Contributors, City of Irvine, County of Los Angeles, California State Parks, © OpenStreetMap, Microsoft, Esri, HERE, Garmin, SafeGraph, GeoTechnolog… Powered by Esri ID Number Profile
ID Number: CAC002949233
Facility Name: KEYENCE CORPORATION OF AMERICA
Status: INACTIVE (expired: 5/26/2018)
ID Type: TEMPORARY
ID Category: STATE
Entity Types:

Issued Date: 2/20/2018
Last Updated: 5/26/2018
Facility Address
24422 AVENIDA DE LA
CARLOTA STE 200
LAGUNA BEACH, CA 92653
ORANGE County
(33.608654, -117.700554)
Mailing Address
669 RIVER DR STE 403
ELMWOOD PARK, NJ 88853
Owner

KEYENCE CORPORATION OF AMERICA
669 RIVER DR STE 403
ELMWOOD PARK, NJ 88853
(888) 539-3623
Contact

BRIAN GAEHRING
24422 AVENIDA DE LA CARLOTA STE 200
LAGUNA BEACH, CA 92653
(888) 539-3623
CalEnviroScreen 4.0 Results
Census Tract: 6059062647 (Population: 4553)
The results for each indicator range from 0-100 and represent the percentile ranking of census tract 6059062647 relative to other census tracts.

Overall Percentiles
CalEnviroScreen: 52
Pollution Burden: 69
Population Characteristics: 38
Environmental Effects
Cleanup Sites: 41
Groundwater Threats: 60
Hazardous Waste: 48
Solid Waste: 36
NAICS Codes
99999 Not Otherwise Specified
Annual ID Number Verification History
0 to 0 of 0 Page 0 of 0
Year Status Method VQ Number (eV No results found matching your search critera. Q) Completion Date Signed By Page Size: 10    

9/7/22, 10:48 AM Hazardous Waste Tracking System: Handler Profile CAC002949233 https://hwts.dtsc.ca.gov/facility/CAC002949233 2/2
Back to Top Disclaimer & Data Limitations Accessibility Contact Us Copyright ©  2022 State of California
Manifests 3
Manifest Per Year by Handler Type
2018
0 0.25

0.5 0.75
1 Tonnage Handled Per Year by Handler Type
2018
0 0.004

0.008

0.012

0.016
Manifest Counts and Total Tonnage
Export CSV
Generator Transporter TSDF
Year Count Tons Count Tons Count Tons
2018 1 0.015 0 0 0 0
Waste CodeMatrix 5

National Flood Hazard Layer FIRMette
0 250 500 1,000 1,500 2,000
Feet
Ü

SEE FIS REPORT FOR DETAILED LEGEND AND INDEX MAP FOR FIRM PANEL LAYOUT

SPECIAL FLOOD

HAZARD AREAS
Without Base Flood Elevation (BFE)
Zone A, V, A99
With BFE or DepthZone AE, AO, AH, VE, AR
Regulatory Floodway

0.2% Annual Chance Flood Hazard, Areas
of 1% annual chance flood with average
depth less than one foot or with drainage
areas of less than one square mileZone X
Future Conditions 1% Annual
Chance Flood HazardZone X
Area with Reduced Flood Risk due to
Levee. See Notes.Zone X
Area with Flood Risk due to LeveeZone D
NO SCREENArea of Minimal Flood Hazard Zone X
Area of Undetermined Flood HazardZone D
Channel, Culvert, or Storm Sewer
Levee, Dike, or Floodwall
Cross Sections with 1% Annual Chance

17.5 Water Surface Elevation
Coastal Transect
Coastal Transect Baseline
Profile Baseline
Hydrographic Feature
Base Flood Elevation Line (BFE)
Effective LOMRs
Limit of Study
Jurisdiction Boundary
Digital Data Available
No Digital Data Available
Unmapped
This map complies with FEMA's standards for the use of
digital flood maps if it is not void as described below.

The basemap shown complies with FEMA's basemap
accuracy standards
The flood hazard information is derived directly from the authoritative NFHL web services provided by FEMA. This map was exported on 9/2/2022 at 5:20 PM and does not
reflect changes or amendments subsequent to this date and time. The NFHL and effective information may change or
become superseded by new data over time.

This map image is void if the one or more of the following map elements do not appear: basemap imagery, flood zone labels, legend, scale bar, map creation date, community identifiers, FIRM panel number, and FIRM effective date. Map images for unmapped and unmodernized areas cannot be used for
regulatory purposes.

Legend

OTHER AREAS OF

FLOOD HAZARD

OTHER AREAS

GENERAL

STRUCTURES
OTHER

FEATURES

MAP PANELS
8 B

20.2 The pin displayed on the map is an approximate
point selected by the user and does not represent
an authoritative property location.
1:6,000
117°42'17"W 33°36'44"N
117°41'39"W 33°36'14"N
Basemap: USGS National Map: Orthoimagery: Data refreshed October, 2020

Database: LPCWEST Rent Roll Page: 1
Bldg Status: Active only AG-LO Oakbrook Owner LLC Date: 8/29/2022 8/29/2022 Time: 11:23 AM
GLA Monthly Annual Monthly Expense ------------------- Future Rent Increases -----------------------------------------------Monthly Bldg Id Suit Id Occupant Name Rent Start Expiration Sqft Base Rent Rate PSF Cost Recovery Stop Other Income Cat Date Monthly Amount PSF New Leases
24067 0270 Edward D Jones & Co 10/1/2022 2/29/2028 1,199 24067 0290 Abracon, LLC 2/1/2023 1/31/2025 2,650
Vacant Suites
24067 0101 Vacant 263
24067 0210 Vacant 1,241
24067 0225 Vacant 3,096
24067 0235 Vacant 5,287
24067 0272 Vacant 1,100
24067 0295 Vacant 1,140
24067 0310 Vacant 2,401
24067 0315 Vacant 2,378
24067 0320 Vacant 755
24067 0330 Vacant 2,395
24067 0350 Vacant 2,016
24067 0365 Vacant 6,831
24067 0370a Vacant 453
24067 0380 Vacant 1,714
24067 0420 Vacant 11,265
24067 99999 Vacant 277
Occupied Suites
24067 0100 Pacific Pro Physical Therapy 1/1/2021 5/31/2026 2,259 7,212.99 38.32 117.86 RNT 1/1/2023 7,429.38 39.47

Database: LPCWEST Rent Roll Page: 2
Bldg Status: Active only AG-LO Oakbrook Owner LLC Date: 8/29/2022 8/29/2022 Time: 11:23 AM
GLA Monthly Annual Monthly Expense ------------------- Future Rent Increases -----------------------------------------------Monthly Bldg Id Suit Id Occupant Name Rent Start Expiration Sqft Base Rent Rate PSF Cost Recovery Stop Other Income Cat Date Monthly Amount PSF RNT 1/1/2024 7,652.26 40.65
RNT 1/1/2025 7,881.83 41.87
RNT 1/1/2026 8,118.28 43.12
24067 0105 Hands on Hands Rehabilitation Center, Inc 2/1/2022 2/28/2027 1,501 2,436.75 19.48 117.86 CON 3/1/2023 -1,899.24 -15.18 RNT 3/1/2023 4,412.94 35.28
RNT 3/1/2024 4,533.02 36.24
RNT 3/1/2025 4,668.11 37.32
RNT 3/1/2026 4,818.21 38.52
24067 0110 OC Eye Institute 6/1/2018 5/31/2028 4,033 14,298.41 42.54 RNT 6/1/2023 14,727.36 43.82 RNT 6/1/2024 15,169.18 45.14
RNT 6/1/2025 15,624.26 46.49
RNT 6/1/2026 16,092.98 47.88
RNT 6/1/2027 16,575.77 49.32
24067 0120 OC Orthodontics, Jungle of Smiles 9/1/2014 8/31/2024 5,417 17,659.42 39.12 1,461.29 RNT 9/1/2022 18,201.12 40.32 RNT 9/1/2023 18,742.82 41.52
24067 0165 RehabCare Group East Inc 3/5/2012 6/30/2023 1,318 4,301.92 39.17 24067 0170 AT&T Wireless 6/1/1999 5/31/2024 400 4,231.39 126.94 RNT 6/1/2023 4,400.65 132.02 24067 0180 Woodard & Curran, Inc 2/1/2018 1/31/2023 5,148 15,341.04 35.76 168.83 24067 0190 Sensible Care LLC 11/1/2021 3/31/2027 3,601 9,145.00 30.47 RNT 11/1/2022 9,424.00 31.40 RNT 5/1/2023 11,271.13 37.56
RNT 11/1/2023 11,595.22 38.64
RNT 11/1/2024 11,955.32 39.84
RNT 11/1/2025 12,315.42 41.04
RNT 11/1/2026 12,675.52 42.24
24067 0200 Keyence Corporation of America 8/1/2022 4/30/2023 4,820 14,942.00 37.20 1,153.11 24067 0220 DDCM Incorporated 6/1/2022 5/31/2023 1,406 4,471.08 38.16 121.57 24067 0230 Krone Hearing Aid Center LLC 4/1/2022 3/31/2023 1,194 3,522.30 35.40 24067 0265 Ernie M Ellsworth 11/1/2021 11/30/2022 1,294 3,817.30 35.40 24067 0270 Edward D Jones & Co 8/1/2017 9/30/2022 1,199 3,441.13 34.44 103.68 24067 0275 Lance, Soll and Lunghard, LLP 1/1/2022 10/31/2025 2,232 7,011.83 37.70 RNT 11/1/2022 7,222.18 38.83 RNT 11/1/2023 7,438.85 39.99
RNT 11/1/2024 7,662.01 41.19
24067 0280 The FHL Financial Group 5/1/2022 10/31/2022 1,015 3,230.44 38.19

Database: LPCWEST Rent Roll Page: 3
Bldg Status: Active only AG-LO Oakbrook Owner LLC Date: 8/29/2022 8/29/2022 Time: 11:23 AM
GLA Monthly Annual Monthly Expense ------------------- Future Rent Increases -----------------------------------------------Monthly Bldg Id Suit Id Occupant Name Rent Start Expiration Sqft Base Rent Rate PSF Cost Recovery Stop Other Income Cat Date Monthly Amount PSF 24067 0285 Roehl & Glowacki, P.C. 8/1/2022 11/30/2025 1,889 5,572.55 35.40 264.65 CON 9/1/2022 -5,572.55 -35.40 CON 1/1/2023 0.00 0.00
RNT 8/1/2023 5,742.56 36.48
RNT 8/1/2024 5,912.57 37.56
RNT 8/1/2025 6,082.58 38.64
24067 0290 Abracon, LLC 10/1/2017 1/31/2023 2,650 8,215.00 37.20 229.14 RNT 10/1/2022 8,453.50 38.28 24067 0300 Coastal Kids 2/1/2022 8/31/2029 4,000 22,673.45 40.35 CON 3/1/2023 -6,583.68 -11.72 CON 4/1/2023 0.00 0.00
CON 3/1/2024 -6,781.80 -12.07
CON 4/1/2024 0.00 0.00
CON 2/1/2025 -6,972.30 -12.41
CON 3/1/2025 0.00 0.00
RNT 6/1/2023 23,317.27 41.50
RNT 6/1/2024 24,042.61 42.79
RNT 6/1/2025 24,746.24 44.04
RNT 6/1/2026 25,502.06 45.38
RNT 6/1/2027 26,250.26 46.72
RNT 6/1/2028 27,065.89 48.17
RNT 6/1/2029 27,812.94 49.50
Additional Space 24067 - 0130 2/1/2022 8/31/2029 2,743
Total 6,743 22,673.45 0.00 0.00
24067 0340 Van Cline & Associates Insurance 3/1/2022 8/31/2022 944 2,784.80 35.40 24067 0345 Schneyer Financial Services 11/1/2020 10/31/2022 1,223 3,716.09 36.46 113.61 24067 0360 Stix Holdings, LLC 2/1/2020 1/31/2025 2,554 11,380.12 53.47 CON 2/1/2023 -11,721.52 -55.07 CON 2/1/2024 -12,073.16 -56.73
RNT 2/1/2023 11,721.52 55.07
RNT 2/1/2024 12,073.16 56.73
Additional Space 24067 - 0335 2/1/2020 1/31/2025 963
Total 3,517 11,380.12 0.00 0.00
24067 0370 Karen Cheng & Corbett Williams 4/1/2018 3/31/2025 1,224 3,929.04 38.52 RNT 4/1/2023 4,051.44 39.72 RNT 4/1/2024 4,173.84 40.92
24067 0375 South OC Endocrinology 5/1/2022 7/31/2027 1,970 275.99 CON 9/1/2022 0.00 0.00 RNT 5/1/2023 5,988.80 36.48
RNT 5/1/2024 6,166.10 37.56
RNT 5/1/2025 6,343.40 38.64
RNT 5/1/2026 6,540.40 39.84

Database: LPCWEST Rent Roll Page: 4
Bldg Status: Active only AG-LO Oakbrook Owner LLC Date: 8/29/2022 8/29/2022 Time: 11:23 AM
GLA Monthly Annual Monthly Expense ------------------- Future Rent Increases -----------------------------------------------Monthly Bldg Id Suit Id Occupant Name Rent Start Expiration Sqft Base Rent Rate PSF Cost Recovery Stop Other Income Cat Date Monthly Amount PSF RNT 5/1/2027 6,737.40 41.04
24067 0400 Harvest Small Business Finance 5/1/2022 12/31/2029 15,988 CON 5/1/2023 45,246.04 33.96 RNT 5/1/2023 45,246.04 33.96
RNT 5/1/2024 46,684.96 35.04
RNT 5/1/2025 47,964.00 36.00
RNT 5/1/2026 49,562.80 37.20
RNT 5/1/2027 51,001.72 38.28
RNT 5/1/2028 52,440.64 39.36
RNT 5/1/2029 54,039.44 40.56
24067 0450 Vintage Real Estate Group, Inc 1/8/2018 12/31/2023 4,329 14,237.98 39.47 RNT 11/1/2022 14,373.37 39.84 RNT 4/1/2023 14,502.15 40.20
24067 ANTE Verizon Wireless 10/1/2003 9/30/2023 0 2,553.65 ANT 10/1/2022 2,630.26 0.00 24067 ANTE1 Royal St Communications LLC 3/22/2022 3/21/2032 0 2,737.58 ANT 3/22/2027 3,148.22 0.00 24067 ANTE2 Dish Wireless, LLC 5/1/2022 4/30/2027 0 2,250.00 ANT 8/1/2023 2,306.25 0.00 ANT 8/1/2024 2,363.91 0.00
ANT 8/1/2025 2,423.01 0.00
ANT 8/1/2026 2,483.59 0.00
Totals: Occupied Sqft: 64.47% 27 Units 77,314 187,572.03 3,958.76 7,710.06 Leased/Unoccupied Sqft: 0 Units 0
Vacant Sqft: 35.53% 16 Units 42,612
Total Sqft: 43 Units 119,926 187,572.03
Total AG-LO Oakbrook Owner LLC:

Occupied Sqft: 64.47% 27 Units 77,314 187,572.03 3,958.76 7,710.06 Leased/Unoccupied Sqft: 0 Units 0
Vacant Sqft: 35.53% 16 Units 42,612
Total Sqft: 43 Units 119,926 187,572.03
Grand Total:

Occupied Sqft: 64.47% 27 Units 77,314 187,572.03 3,958.76 7,710.06 Leased/Unoccupied Sqft: 0 Units 0
Vacant Sqft: 35.53% 16 Units 42,612
Total Sqft: 43 Units 119,926 187,572.03













 



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IJKLJMNOPQRONKQJPLNKSMRIJTULRVWXNIXVYRSNKKNKSNKZ[Z[VWNMMP\\RPUJKQUPNKNKSURIJUOLPL]^\NMM _UR`RKQNJKPKOaRL\JKLRbc


Remediation
Design and
Implementation
Programs

Groundwater,
Soil and Air
Compliance
Sampling and
Reporting

Phase I and II
Commercial and
Industrial Site
Assessments

Discharge
Permitting

Spill Prevention,
Countermeasures
and Control

Environmental
Health and Safety
Specialists

Feasibility and
Risk Analysis

Hazardous Waste
Management and
Monitoring

Since 1991
5122 Bolsa Avenue, Suite 107• Huntington Beach, CA 92649 • (P) 714.890.7129 • (F) 714.890.7149 www.atlasenvironmental.com • License Number A729641
April 11, 2022
Ms. Samantha Mak
Santa Ana Regional Water Quality Control Board
3737 Main Street, Suite 500
Riverside, California 92501-3348
RE: G&M Oil Company Station #40
(Former Wright Petroleum)
23991 El Toro Road
Laguna Hills, California 92606

QUARTERLY STATUS REPORT
4th Quarter 2021
SARWQCB Case # 083000580T
Dear Ms. Mak:

On behalf of G&M Oil Company, Inc., enclosed is the Quarterly Status Report – 4th Quarter 2021, dated April 11, 2022, and prepared by Atlas Environmental Engineering, Inc. (ATLAS).

The ozone sparge treatment system operations were initiated as the on-site remediation in February 2013 and operations have continued through the 4th Quarter 2019. From February 2013 to December 31, 2019, the treatment unit injected approximately 15,021 pounds (lbs) of ozone in all of the wells combined.

Treatment system operation data is summarized in Table 7 and graphically depicted on Figure 11. The treatment system was shut down at the end of December 2019 for post treatment groundwater monitoring. As of 4 th quarter 2021,
ATLAS has established 8 quarters of post rebound groundwater concentrations. A review of the 4th quarter 2021 groundwater data indicates the concentrations continue to meet the Low Threat Closure Policy (LTCP) criteria for site closure.

Based on this information, ATLAS would like to request the SARWQCB to consider this site for closure based on the LTCP criteria. However, a significant increase in the concentration of TPHd was reported in samples collected from wells AMW-12, AMW-13, and AMW-14. Current, historical, and additional analytical results are summarized in Tables 1 through 3, respectively, and the laboratory analytical report and associated chain of custody are included in Appendix B.

QUARTERLY STATUS REPORT Page 2 of 2
G&M Oil Company Station #40 April 11, 2022
Laguna Hills, California

5122 Bolsa Avenue, Suite 107• Huntington Beach, CA 92649 • (P) 714.890.7129 • (F) 714.890.7149 www.atlasenvironmental.com • License Number A729641
………….

As requested by the Santa Ana Regional Water Control Board (SARWQCB), ATLAS also included Chromium, Hexavalent Chromium, and Arsenic analysis as part of the groundwater monitoring program. The analytical results are summarized in Table 4 and the laboratory analytical report and associated chain of custody are included in Appendix B. ATLAS discontinued metals, general minerals and TDS analysis since Ozone treatment was discontinued for over a year and enough post treatment rebound data had been established. If you have any questions, please contact me at (714) 890-7129.

Sincerely,
ATLAS ENVIRONMENTAL ENGINEERING, INC.

Karl H. Kerner, P.E.

Senior Engineer/Project Manager
cc: Ms. Laura Lopez, G&M Oil Company (w/1 electronic)

SITE LOCATION: 23991 El Toro Road, Laguna Hills, CA
OWNER/OPERATOR: G&M Oil Co., 16868 A Lane, Huntington Beach, CA 92647 CONTACT: Ms. Laura Lopez
LEAD AGENCY: Santa Ana Regional Water Quality Control Board AGENCY CONTACT: Ms. Samantha Mak
SARWQCB CASE #: 083000580T
Site Activities this Quarter
= Quarterly groundwater monitoring and sampling were performed on November 17, 2021. = Approximately 661 gallons of groundwater were purged prior to sampling the wells using a vacuum truck equipped with a holding tank for subsequent proper disposal by the generator. = LPH was not observed in any of the wells during this event. = Ethanol was not detected at concentrations exceeding the laboratory detection limit. = Discontinued ozone sparge treatment system operation, maintenance and monitoring on December 31, 2019 for post treatment groundwater rebound monitoring. = Request SARWQCB to review site for closure under LTCP.

Future Site Activities
=
= Post treatment system rebound monitoring and site closure review. = Anticipate LTCP closure review and approval.
= Well abandonment and system decommissioning once closure is approved under LTCP.

Quarterly Summary
Total GW Monitoring Wells: 22
GW Wells Gauged: 22
GW Wells Sampled: 22
Wells with Liquid Phase Hydrocarbons(LPH): 0
Gallons of LPH Removed this Quarter: 0.0
Gallons of LPH Removed to Date: 2.0
Depth to Groundwater (feet): 10.82 to 23.27
Approximate Groundwater Elevation (feet): 37.63 to 345.77 Approximate Groundwater Gradient: 0.003
Approximate Groundwater Flow Direction: West/Southwest
Consistent with Last Quarter: Yes
Analytical Summary
Groundwater Analytical Results
TPHd Concentrations ( m g/L): <500 to 19,700
TPHg Concentrations ( m g/L): <50 to 3,120
Benzene Concentrations ( m g/L): <0.5 to 102.0
Toluene Concentrations ( m g/L): 1.5 to 323
Ethylbenzene Concentrations ( m g/L): 0.6J to 86.0
Total Xylenes Concentrations ( m g/L): 5 to 636
MTBE (EPA 8260B) Concentrations ( m g/L): <1 to 33.7
ETBE Concentrations ( m g/L): <1
DIPE Concentrations ( m g/L): <1
TAME Concentrations ( m g/L): <1
TBA Concentrations ( m g/L): <10 to 1,210
G&M OIL COMPANY STATION #40
4th QUARTER 2021
5122 Bolsa Avenue, Suite 107 • Huntington Beach, CA 92649 • (P) 714.890.7129 • (F) 714.890.7149 www.atlasenvironmental.com • License Number A729641
April 11, 2022
(FORMER WRIGHT PETROLEUM)

QUARTERLY STATUS REPORT
Quarterly groundwater monitoring & sampling of available wells during the 1st quarter of 2022. (Conducted on February 23, 2022.)
G40-Q421.xls Page 1 of 3

Remediation Summary
Method of Remediation Soil Vapor Extraction System / ATLAS GW MTU Soil Vapor Extraction System
Type of Treatment System: Thermal/Baker Model-500
Hours of Operation this Quarter: 0.00
Total Hours of Operation: 765.50
Inlet Vapor Concentrations (ppm-v): NA to NA
Flow Rate (cfm): NA
Hydrocarbon removed this quarter (lbs.): 0.00
Total Hydrocarbons Removed (lbs.): 532.94
In Compliance with AQMD Permit: Yes
Type of Treatment System: GAC
Groundwater Removed this Quarter (gal): 0.00
Total Groundwater Removed (gal): 5,675
Ozone Sparge Treatment System
Type of System: Ozone Injection
Number of Wells Operating this Quarter: 18
Total Hours of Operation this Quarter:

OSP-1 0.00 OSP-10 0.00
OSP-2 0.00 OSP-11 0.00
OSP-3 0.00 OSP-12 0.00
OSP-4 0.00 OSP-13 0.00
OSP-5 0.00 OSP-14 0.00
OSP-6 0.00 OSP-15 0.00
OSP-7 0.00 OSP-16 0.00
OSP-8 0.00 OSP-17 0.00
OSP-9 0.00 OSP-18 0.00
Total Hours of Operation To Date:

OSP-1 3356.83 OSP-10 3340.92
OSP-2 3304.42 OSP-11 3340.83
OSP-3 3344.00 OSP-12 3340.83
OSP-4 3344.00 OSP-13 3334.83
OSP-5 3344.00 OSP-14 3334.83
OSP-6 3340.92 OSP-15 3334.83
OSP-7 3340.92 OSP-16 3334.83
OSP-8 3340.92 OSP-17 3334.83
OSP-9 3340.92 OSP-18 3334.83
Total Pounds of Ozone this Quarter: 0.00
Total Pounds of Ozone to Date: 15021.96
In Compliance with Permit: Yes
Operational Period this Quarter
rebounding.

Groundwater System
5122 Bolsa Avenue, Suite 107 • Huntington Beach, CA 92649 • (P) 714.890.7129 • (F) 714.890.7149 shut down for post groundwater treatment
www.atlasenvironmental.com • License Number A729641
G40-Q421.xls Page 2 of 3

Prepared by:

Reviewed by:

Project Geobgist
Jasmine F. ray
Project Scientist
Attachments:

Figures
Figure 1 - Site Vlcinity Map
Figure 2 -Previous Site Plan. Monitoring Wells
Figure 3 - Current Site Plan, Monitoring Wells
Figure 4 - Groundwater Elevation Contour Map
Figure 5 -TPHg Concentrations in Groundwater
Figure 6 -TPHd Concentrations in GroiJndwater
Figure 7 - Benzene Concentrations in Groundwater
Figure 8 - MTBE Ccmcentrations in Groundwater
Figure 9 ~ TBA Concentrations in Groiindwater
Figure 10 - Hours, Concentration, and TPH Removed Graph FigiJre 11 - Hours of Operation (Ozone Sparge Treatment System) Tables
Table 1 - Cument Groundwater Monitoring Data
Table 2 - Historical Groundwater Monitoring Data
Table 3 -Additional Groundwater Analytical Resuts
Table 4 -Additional Groundwater Analytical Results (EPA Methods 6010B„470A, 7199) Table 5 - §oil Vapor Extraction & Treatment System Operating Data Table 6 - Inlet Soil Vapor Analytical Results
Table 7 -Ozone Spange Treatment System Ctoeratng Data
Table 8 -Well Construction Details
Table 9 - Groundwater Monitoh.ng and Sampling Plan
Appendix A
Project Status Repcrfs
Available Waste Manifests
Groundwater Sampling Procedures
Appendix 8
Laboratory Anapecal F`aports and ChainulLcilstody Docilmentation 5122 Bolsa Avenue, Suite 107 . Hunting[on Beach, CA 92649 . (P) 714.890 7129 . (F) 714.890 7149 w\^rtyv.at`asen\J!tonmentai..com . Li.cense Number A 729641 G40-CW21.xls Page 3 of 3

FIGURES

Map: 7.5’ USGS Topographic Map San Juan Capistrano Quadrangle Date: <1981> (photorevised 1989)
Scale: 1: 25000
5122 Bolsa Avenue
Suite 107
Huntington Beach, CA 92649
G&M OIL COMPANY STATION #40
23991 EL TORO ROAD

LAGUNA HILLS, CA

SITE VICINITY MAP
FIGURE 1

0 100
200
300
400
500
600
0 500
1,000
1,500
2,000
2,500
3,000
3,500
0 100 200 300 400 500 600 700 800 900
TPH Removed (lbs)
TPH Concentration (ppmv)
Hours of Operation
Figure 10 - Hours, Concentration, and TPH Removed
G&M OIL COMPANY STATION #40
Inlet Concentration (ppmv) TPH Removed (lbs.)

150,000
200,000250,000
10,00012,00014,00016,000
(In Minutes) njected (lbs)
Figure 11 - Ozone Sparge System Operations
G&M OIL COMPANY STATION #40
0 50,000100,000
0 2,0004,0006,0008,000
4/1/2012 8/14/2013 12/27/2014 5/10/2016 9/22/2017 2/4/2019 6/18/2020 Operation Time (
Total Ozone Inj
Date of Site Visit
Total Ozone Injected (lbs) Total Hours of Operation - OSP1 Total Hours of Operation - OSP2 Total Hours of Operation - OSP3 Total Hours of Operation - OSP4 Total Hours of Operation - OSP5Total Hours of Operation - OSP6 Total Hours of Operation - OSP7 Total Hours of Operation - OSP8 Total Hours of Operation - OSP9 Total Hours of Operation - OSP10 Total Hours of Operation - OSP11Total Hours of Operation - OSP12 Total Hours of Operation - OSP13 Total Hours of Operation - OSP14 Total Hours of Operation - OSP15 Total Hours of Operation - OSP16 Total Hours of Operation - OSP18

TABLES

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 1 - CURRENT GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-13 11/17/2021 388 0.8J 11.4 4.6 35.0 <1 <1 <1 <10 364.81 19.82 0.00 344.99 1270 -- <1BYA-31 11/17/2021 826 3.6 46.9 16.8 135 <1 <1 <1 <10 363.32 18.48 0.00 344.84 517J -- 2.7 MW-18 11/17/2021 1670 14.1 170 53.0 388 <1 <1 <1 <10 355.26 10.82 0.00 344.44 5570 -- 32.3MW-19 11/17/2021 1500 11.4 146 47.1 292 <1 <1 <1 <10 357.58 12.94 0.00 344.64 470 -- 161AMW-1 11/17/2021 39 1.4 19.8 6.4 47.9 <1 <1 <1 <10 360.90 15.14 0.00 345.76 <500 -- 4.0 AMW-2 11/17/2021 327 0.84J 17.2 7.1 59.0 <1 <1 <1 249 360.54 14.63 0.00 345.91 <500 -- <1AMW-3 11/17/2021 380 1.6 25.5 8.7 69.9 <1 <1 <1 1050 360.29 14.62 0.00 345.67 <500 -- 7.0 AMW-3I 11/17/2021 109 <0.5 5.9 2.5 18.4 <1 <1 <1 <10 361.20 15.40 0.00 345.80 <500 -- <1AMW-3D 11/17/2021 <50 <0.5 1.8 0.6J 5.0 <1 <1 <1 <10 361.12 17.13 0.00 343.99 <500 -- <1AMW-3DD 11/17/2021 <50 <0.5 1.5 0.6J 3.6 <1 <1 <1 <10 361.16 16.83 0.00 344.33 <500 -- <1AMW-3DDD 11/17/2021 260 1.0 16.4 6.1 46.8 <1 <1 <1 1210 360.90 23.27 0.00 337.63 <500 -- 3.5 AMW-4 11/17/2021 79.0J <0.5 5.0 1.7 12.8 <1 <1 <1 <10 360.64 15.36 0.00 345.28 <500 -- <1AMW-5 11/17/2021 3120 102 293 86.0 636 <1 <1 <1 123 358.83 13.22 0.00 345.61 <500 -- 6.6 AMW-6 11/17/2021 535 3.5 45.2 16.5 126 <1 <1 <1 119 359.17 13.40 0.00 345.77 1630 -- 6.0 AMW-7 11/17/2021 637 2.3 37.2 14.9 111 <1 <1 <1 85.2 362.04 16.70 0.00 345.34 <500 -- 1.0JAMW-8 11/17/2021 121 <0.5 2.1 0.9J 7.6 <1 <1 <1 <10 361.65 17.46 0.00 344.19 <500 -- <1AMW-9 11/17/2021 204 1.2 8.9 39 28.8 <1 <1 <1 <10 362.23 16.78 0.00 345.45 <500 -- 33.7 SWE - Surveyed Well Elevation Page 1 of 2DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 1 - CURRENT GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
AMW-10 11/17/2021 329 2.8 1.9 7.2 49.1 <1 <1 <1 165 364.26 19.25 0.00 345.01 <500 -- <1AMW-11 11/17/2021 580 9.3 323 24.6 110 <1 <1 <1 <10 362.69 17.68 0.00 345.01 688J -- 10.2AMW-12 11/17/2021 672 2.6 39.3 15.6 131 <1 <1 <1 <10 366.23 21.05 0.00 345.18 19700 -- 1.4JAMW-13 11/17/2021 1050 6.3 87.8 30.3 247 <1 <1 <1 <10 363.60 18.95 0.00 344.65 13800 -- <1AMW-14 11/17/2021 905 4.4 58.3 20.7 171 <1 <1 <1 <10 361.70 16.93 0.00 344.77 15300 -- <1 SWE - Surveyed Well Elevation Page 2 of 2DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-7 7/19/2005 1900 9.9 19.1 18.0 131 <2 <2 <2 190 360.88 9 .80 0.20 351.23 670 -- 5.1 BYA-7 10/3/2005 16000 752 462 1160 6200 <20 <20 <20 324 360.88 9 .88 0.00 351.00 2700 -- 98.6BYA-7 1/9/2006 698000 941 999 7600 36000 <200 <200 <200 <1000 360.88 11.10 0.00 349.78 60400 -- <200BYA-7 4/3/2006 9960 463 326 1030 4330 <10 <10 <10 <50 360.88 11.21 0.00 349.67 773 -- <10 BYA-7 7/10/2006 19000 628 250 1480 4930 <20 <20 <20 405 360.88 11.50 0.00 349.38 9740 -- 122BYA-7 10/9/2006 17600 604 263 1520 5860 <20 <20 <20 259 360.88 12.15 0.00 348.73 13300 -- 88.8BYA-7 1/8/2007 17800 616 168 1450 5870 <20 <20 <20 232 360.88 12.60 0.00 348.28 767 -- 78.9BYA-7 4/9/2007 13700 579 70.7 922 3570 <10 <10 <10 460 360.88 13.23 0.00 347.65 <500 - 94.2BYA-7 7/9/2007 26200 768 73.0 1160 4850 <10 <10 <10 307 360.88 13.40 0.00 347.48 <500 -- 78.7BYA-7 10/8/2007 13800 875 46.0 684 2970 <10 <10 <10 1260 360.88 13.26 0.00 347.62 <500 -- 130BYA-7 1/28/2008 <50 1.9 0.8J <0.5 3.5 <1 <1 <1 214 360.88 10.51 0.00 350.37 <500 -- 1.2JBYA-7 4/21/2008 195 2.5 <0.5 1.4J 4.8 <1 <1 <1 796 360.88 11.87 0.00 349.01 <500 -- 5.6 BYA-7 7/7/2008 873 3.8 <0.5 2.4 8.1 <1 <1 <1 2110 360.88 12.02 0.00 348.86 728 -- 14.3BYA-7 10/3/2008 147 8.3 <1 2.9 11.9 <2 <2 <2 3290 360.88 12.26 0.00 348.62 475 -- 13.1BYA-7 1/21/2009 375 5.1 <1 3.5 25.1 <2 <2 <2 2430 360.88 11.02 0.00 349.86 1780 -- 13.2BYA-7 4/2/2009 223 6.6 <0.5 5.2 15.7 <1 <1 <1 97.6 360.88 11.61 0.00 349.27 1010 -- 8.4 BYA-7 7/20/2009 -- -- -- -- -- -- -- -- -- 360.88 --. -- -- -- -- -- SWE - Surveyed Well Elevation Page 1 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-7 9/3/2009 -- -- -- -- -- -- -- -- -- ABAND. --. -- -- -- -- -- BYA-7R 2/9/2009 15300 4790 <10 854 700 <20 <20 <20 7290 NA 12.23 0.00 NA 1560 -- 1010 BYA-7R 4/2/2009 2080 64.1 <5 14.5 <10 <10 <10 <10 9850 NA 12.77 0.00 NA 804 -- 57.3BYA-7R 7/20/2009 501 78.8 <1.25 3.6 <2.5 <2.5 <2.5 <2.5 6960 NA 14.00 0.00 NA <500 -- 136BYA-7R 10/20/2009 -- -- -- -- -- -- -- -- -- NA NA -- NA -- -- -- BYA-7R 1/26/2010 564 95.8 <2.5 7.4 <5 <5 <5 <5 4430 NA 13.82 0.00 NA <500 -- 47.8 BYA-7R 4/7/2010 721 178 <2.5 14.5 <5 <5 <5 <5 9400 NA 13.30 0.00 NA <500 -- 107BYA-7R 7/7/2010 200 11.1 3.3J <2.5 <5 <5 <5 <5 9560 NA 13.71 0.00 NA <500 -- 14.4BYA-7R 10/18/2010 186 9.0J <5 <5 <10 <10 <10 <10 11200 NA 14.47 0.00 NA <500 -- 17.5JBYA-7R 1/13/2011 794 288 1.7J 24.5 6.6 <2 <2 <2 5800 NA 11.56 0.00 NA <500 -- 107BYA-7R 4/11/2011 301 11.9 <2.5 <2.5 <5 <5 <5 <5 6020 NA 11.34 0.00 NA <500 -- 17.8BYA-7R 7/12/2011 397 119 <2.5 14.5 7.8J <5 <5 <5 3610 NA 12.30 0.00 NA <500 -- 59.7BYA-7R 10/6/2011 692 286** 1.5J 15.4 9.4 <2 <2 <2 6130** N/A 12.46 0.00 NA <500 -- 83.5 BYA-8 7/19/2005 220 <1 6.4 1.7 14.4 <2 <2 <2 <10 363.20 11.52 0.00 351.68 <500 -- <2BYA-8 10/3/2005 <50 <1 1.3 <1 <2 <2 <2 <2 <10 363.20 12.08 0.00 351.12 <500 -- <2BYA-8 1/9/2006 <50 <1 1.1 <1 2.4 <2 <2 <2 <10 363.20 12.90 0.00 350.30 <500 -- <2BYA-8 4/3/2006 <50 <1 <1 <1 <2 <2 <2 <2 <10 363.20 13.12 0.00 350.08 <500 -- <2 SWE - Surveyed Well Elevation Page 2 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-8 7/10/2006 56.8 <1 <1 <1 <2 <2 <2 <2 <10 363.20 13.32 0.00 349.88 <500 -- <2BYA-8 10/9/2006 66.0 <1 <1 <1 <2 <2 <2 <2 <10 363.20 13.86 0.00 349.34 <500 -- <2BYA-8 1/8/2007 52.6 <1 <1 <1 <2 <2 <2 <2 <10 363.20 14.49 0.00 348.71 <500 -- <2BYA-8 4/9/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.20 14.72 0.00 348.48 <500 -- 2.2 BYA-8 7/9/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.20 14.84 0.00 348.36 <500 -- 1.8JBYA-8 10/8/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.20 14.77 0.00 348.43 <500 -- 1.6JBYA-8 1/28/2008 <50 <0.5 1.0 <0.5 3.3 <1 <1 <1 <10 363.20 14.90 0.00 348.30 <500 -- <1BYA-8 4/21/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.20 13.58 0.00 349.62 <500 -- <1BYA-8 7/7/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.20 13.65 0.00 349.55 <500 -- <1BYA-8 10/3/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.20 13.99 0.00 349.21 <500 -- <1BYA-8 1/21/2009 85 <0.5 <0.5 0.6J 4.4 <1 <1 <1 <10 363.20 13.20 0.00 350.00 <500 -- <1BYA-8 4/2/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.20 13.37 0.00 349.83 <500 -- <1BYA-8 7/20/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.20 14.16 0.00 349.04 <500 -- <1BYA-8 10/20/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.20 14.82 0.00 348.38 <500 -- <1BYA-8 1/26/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.20 14.22 0.00 348.98 <500 -- <1BYA-8 4/7/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.20 14.02 0.00 349.18 560J -- <1BYA-8 7/7/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.20 14.51 0.00 348.69 <500 -- <1 SWE - Surveyed Well Elevation Page 3 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-8 10/18/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.20 15.00 0.00 348.20 <500 -- <1BYA-8 1/13/2011 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.20 12.54 0.00 350.66 <500 -- <1BYA-8 4/11/2011 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.20 12.42 0.00 350.78 <500 -- <1BYA-8 7/12/2011 -- WELL -- REMOVED -- -- -- -- -- 363.20 NA 0.00 NA -- -- --BYA-9 7/19/2005 358 34.2 6.3 2.1 12.9 <2 <2 <2 4190 362.41 10.79 0.00 351.62 <500 -- 27.1BYA-9 10/3/2005 267 30.2 3.7 1.3J 4.9 <2 <2 <2 5760 362.41 11.35 0.00 351.06 <500 -- 80.6BYA-9 1/9/2006 137 3.9 <1 2.0 9.0 <2 <2 <2 1070 362.41 12.17 0.00 350.24 <500 -- <2BYA-9 4/3/2006 978 412* 3.4 3.9 8.9 <2 <2 <2 1690 362.41 12.28 0.00 350.13 <500 -- 19.1BYA-9 7/10/2006 582 227 <2 <2 <4 <4 <4 <4 868 362.41 12.60 0.00 349.81 <500 -- <4BYA-9 10/9/2006 582 262 <2 <2 <4 <4 <4 <4 475 362.41 12.91 0.00 349.50 <500 -- 19.5BYA-9 1/8/2007 564 60.8 <1 <1 <2 <2 <2 <2 362 362.41 13.55 0.00 348.86 <500 -- 18.0BYA-9 4/9/2007 525 156 1.6 1.1 2.6 <1 1.1J <1 175 362.41 13.83 0.00 348.58 635 -- 10.3BYA-9 7/9/2007 1080 122 2.2 1.5 3.4 <1 <1 <1 152 362.41 13.94 0.00 348.47 <500 -- 22.3BYA-9 10/8/2007 504 137 <0.5 <0.5 <1 <1 <1 <1 145 362.41 13.85 0.00 348.56 <500 -- 13.2BYA-9 1/28/2008 892 94.7 1.5 0.6J 2.9 <1 <1 <1 93.4 362.41 12.26 0.00 350.15 <500 -- 20.2BYA-9 4/21/2008 63 13.3 3.1 0.7J 6.0 <1 <1 <1 226 362.41 12.76 0.00 349.65 <500 -- 7.5 BYA-9 7/7/2008 64 5.2 <0.5 <0.5 <1 <1 <1 <1 145 362.41 12.80 0.00 349.61 <500 -- 2.8 SWE - Surveyed Well Elevation Page 4 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-9 10/3/2008 <50 3.4 <0.5 <0.5 <1 <1 <1 <1 303 362.41 13.10 0.00 349.31 <500 -- 5.4 BYA-9 1/21/2009 <50 1.3 <0.5 <0.5 3.3 <1 <1 <1 71.7 362.41 12.35 0.00 350.06 <500 -- 2.9 BYA-9 4/2/2009 <50 1.1 <0.5 <0.5 1.9J <1 <1 <1 43.8 362.41 12.58 0.00 349.83 <500 -- 8.9 BYA-9 7/20/2009 <50 1.2 <0.5 <0.5 <1 <1 <1 <1 77.3 362.41 13.35 0.00 349.06 <500 -- 3.8 BYA-9 10/20/2009 87J 0.7J <0.5 <0.5 1.0J <1 <1 <1 61.6 362.41 14.00 0.00 348.41 <500 -- 4.0 BYA-9 1/26/2010 <50 2.5 <0.5 <0.5 <1 <1 <1 <1 43.8 362.41 13.28 0.00 349.13 <500 -- 3.3 BYA-9 4/7/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 56.1 362.41 13.22 0.00 349.19 <500 -- 2.7 BYA-9 7/7/2010 <50 7.5 <0.5 <0.5 <1 <1 <1 <1 53.1 362.41 13.77 0.00 348.64 <500 -- 1.9JBYA-9 10/18/2010 <50 4.5 <0.5 <0.5 <1 <1 <1 <1 37.0 362.41 14.15 0.00 348.26 <500 -- 4.6 BYA-9 1/13/2011 52J 3.8 <0.5 <0.5 <1 <1 <1 <1 27.6 362.41 11.74 0.00 350.67 <500 -- 2.4 BYA-9 4/11/2011 56J 7.8 <0.5 <0.5 <1 <1 <1 <1 28.9 362.41 11.68 0.00 350.73 <500 -- 1.0JBYA-9 7/12/2011 -- WELL -- REMOVED -- -- -- -- -- 362.41 NA 0.00 NA -- -- --BYA-10 7/19/2005 -- -- -- -- -- -- -- -- -- 359.13 10.12 0.00 349.01 -- -- --BYA-10 10/3/2005 <50 <1 1.5 <1 2.6 <2 <2 <2 <10 359.13 10.60 0.00 348.53 <500 -- <2BYA-10 1/9/2006 <50 <1 <1 <1 <2 <2 <2 <2 <10 359.13 11.30 0.00 347.83 <500 -- <2BYA-10 4/3/2006 <50 <1 <1 <1 <2 <2 <2 <2 <10 359.13 12.50 0.00 346.63 <500 -- <2BYA-10 7/10/2006 <50 <1 <1 <1 <2 <2 <2 <2 <10 359.13 11.70 0.00 347.43 <500 -- <2 SWE - Surveyed Well Elevation Page 5 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-10 10/9/2006 -- -- -- -- -- -- -- -- -- 359.13 NA -- NA -- -- --BYA-10 1/8/2007 -- -- -- -- -- -- -- -- -- 359.13 NA -- NA -- -- --BYA-10 4/9/2007 -- -- -- -- -- -- -- -- -- 359.13 NA -- NA -- -- --BYA-10 10/8/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 359.13 12.96 0.00 346.17 <500 -- 1.2JBYA-10 1/28/2008 <50 <0.5 0.6J <0.5 2.2 <1 <1 <1 <10 359.13 12.26 0.00 346.87 <500 -- 1.1JBYA-10 4/22/2008 <50 <0.5 0.8J <0.5 1.2J <1 <1 <1 <10 359.13 11.98 0.00 347.15 <500 -- <1BYA-10 7/7/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 359.13 12.09 0.00 347.04 <500 -- 1.4JBYA-10 10/3/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 359.13 12.63 0.00 346.50 <500 -- 0.8JBYA-10 1/21/2009 -- -- -- -- -- -- -- -- -- 359.13 11.52 0.00 347.61 -- -- --BYA-10 4/2/2009 -- -- -- -- -- -- -- -- -- 359.13 11.80 0.00 347.33 -- -- --BYA-10 9/3/2009 -- -- -- -- -- -- -- -- -- ABAND. --. -- -- -- -- -- BYA-11 7/19/2005 458 14.3 15.3 6.8 32.9 <2 <2 <2 497 360.28 11.10 0.00 349.18 1400 -- 5.0 BYA-11 10/3/2005 79.1 7.2 2.3 1.8 3.4 <2 <2 <2 <10 360.28 11.52 0.00 348.76 <500 -- <2BYA-11 1/9/2006 200 2.0 1.0 <1 3.5 <2 <2 <2 <10 360.28 12.18 0.00 348.10 <500 -- <2BYA-11 4/3/2006 211 52.1 <1 1.8 <2 <2 <2 <2 <10 360.28 11.44 0.00 348.84 <500 -- <2BYA-13 7/19/2005 419 5.6 11.6 2.9 19.4 <2 <2 <2 175 365.38 13.80 FILM 351.58 7460 -- <2BYA-13 10/3/2005 2350 2.5 4.1 1.6 9.9 <2 <2 <2 107 365.38 14.75 0.00 350.63 24600 -- <2 SWE - Surveyed Well Elevation Page 6 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-13 1/9/2006 <50 <1 1.3 <1 2.7 <2 <2 <2 169 365.38 15.46 0.00 349.92 <500 -- <2BYA-13 4/3/2006 1970 329 <2 21.9 28.0 <4 <4 <4 116 365.38 15.63 0.00 349.75 8500 -- <4BYA-13 7/10/2006 3690 259 <4 18.3 13.7 <4 4 <4 53.4 365.38 15.78 0.00 349.60 18700 -- <4BYA-13 10/9/2006 101 2.3 <1 <1 <2 <2 <2 <2 84.2 365.38 16.56 0.00 348.82 571 -- 2.1 BYA-13 1/8/2007 128 17.1 <1 1.0 <2 <2 <2 <2 88.3 365.38 17.04 0.00 348.34 2340 -- <2BYA-13 4/9/2007 189 6.4 <0.5 0.8J <1 <1 <1 <1 123 365.38 16.56 0.00 348.82 1460 -- 1.8JBYA-13 7/9/2007 <50 0.4J <0.5 <0.5 <1 <1 <1 <1 58.6 365.38 17.93 0.03 347.47 942 -- 1.4JBYA-13 10/8/2007 2910 0.7J 0.6J <0.5 <1 <1 <1 <1 61.1 365.38 17.60 FILM 347.78 43300 -- 1.6JBYA-13 1/28/2008 7070 7.0 <1.25 <1.25 <2.5 <2.5 <2.5 <2.5 107 365.38 18.11 0.02 347.29 270000 -- 3.5JBYA-13 4/22/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 80.6 365.38 15.30 0.00 350.08 691 -- <1BYA-13 7/7/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 80.3 365.38 16.58 0.00 348.80 975 -- 1.4JBYA-13 10/3/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 60.8 365.38 16.72 0.00 348.66 705 -- 4.6 BYA-13 1/21/2009 <50 3.4 <0.5 <0.5 1.6J <1 <1 <1 28.6 365.38 16.26 0.00 349.12 2000 -- 1.4JBYA-13 4/2/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 25.4 365.38 16.06 0.00 349.32 <500 -- <1BYA-13 7/20/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 55.7 365.38 17.02 0.00 348.36 <500 -- 1.7JBYA-13 10/20/2009 LPH -- -- -- -- -- -- -- -- 365.38 17.84 0.04 347.57 -- -- --BYA-13 1/26/2010 89J <0.5 <0.5 <0.5 <1 <1 <1 <1 16.5J 365.38 18.45 0.00 346.93 4140 -- 1.8J SWE - Surveyed Well Elevation Page 7 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-13 4/7/2010 56J <0.5 <0.5 <0.5 <1 <1 <1 <1 13.1J 365.38 16.60 0.00 348.78 8090 -- 1.2JBYA-13 7/7/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 27.1 365.38 17.50 0.00 347.88 1150 -- 1.3JBYA-13 10/18/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 15.7J 365.38 17.97 0.02 347.43 1240 -- <1BYA-13 1/13/2011 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 365.38 15.08 0.00 350.30 <500 -- <1BYA-13 4/11/2011 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 365.38 14.91 0.00 350.47 <500 -- <1BYA-13 7/12/2011 <50 <0.5 <0.5 <0.5 2.2 <1 <1 <1 <10 365.38 15.62 0.00 349.76 552J -- <1BYA-13 10/6/2011 <50 0.5J <0.5 <0.5 3.6 <1 <1 <1 <10 365.38 16.40 0.00 348.98 552J -- <1BYA-13 1/23/2012 318 6.1 16.1 16.1 67.2 <1 <1 <1 29.2 365.38 17.10 0.00 348.28 2630 -- 2.0 BYA-13 4/10/2012 <100 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 365.38 17.38 0.00 348.00 1780 -- <1BYA-13 7/2/2012 <50 <0.5 <0.5 <0.5 2.4 <1 <1 <1 <10 364.81 17.55 0.00 347.26 1200 -- <1BYA-13 10/1/2012 <50 <0.5 1.7 0.6J 3.3 <1 <1 <1 <10 364.81 17.90 0.00 346.91 <500 -- <1BYA-13 1/21/2013 420 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 364.81 17.91 0.02 346.92 13800 -- <1BYA-13 4/9/2013 483 48.3 6.0 35.2 71.7 <1 <1 <1 <10 364.81 17.88 0.00 346.93 2240 -- <1BYA-13 7/11/2013 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 364.81 18.30 0.00 346.51 <500 -- <1BYA-13 10/18/2013 126 <0.5 <0.5 <0.5 2.4 <1 <1 <1 19.4J 364.81 18.86 0.00 345.95 <500 -- 1.0JBYA-13 1/17/2014 59J <0.5 <0.5 <0.5 <1 <1 <1 <1 17.9J 364.81 19.05 0.00 345.76 <500 -- <1BYA-13 6/12/2014 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 18.2J 364.81 19.35 0.00 345.46 582J -- <1 SWE - Surveyed Well Elevation Page 8 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-13 8/27/2014 91J <0.5 <0.5 <0.5 <1 <1 <1 <1 10.6J 364.81 19.55 0.00 345.26 2930 -- <1BYA-13 11/11/2014 <50 <0.5 <0.5 <0.5 2.3 <1 <1 <1 17.5J 364.81 19.44 0.00 345.37 <500 -- <1BYA-13 3/2/2015 91J 0.8J 7.6 1.8 13.6 <1 <1 <1 <10 364.81 19.00 0.00 345.81 4260 -- <1BYA-13 5/19/2015 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 364.81 19.21 0.00 345.60 2100 -- <1BYA-13 8/18/2015 306 1.2 9.1 2.8 21.5 <1 <1 <1 <10 364.81 19.85 0.00 344.96 1650 -- 5.4 BYA-13 11/24/2015 2690 <0.5 0.7J <0.5 1.5J <1 <1 <1 27.9 364.81 20.22 0.00 344.59 142000 -- 3.7 BYA-13 2/16/2016 102 1.1 3.6 0.8J 8.0 <1 <1 <1 <10 364.81 20.20 0.00 344.61 762 -- <1BYA-13 5/31/2016 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 364.81 20.65 0.00 344.16 <500 -- <1BYA-13 8/15/2016 <50 <0.5 1.5 <0.5 3.7 <1 <1 <1 <10 364.81 21.05 0.00 343.76 1690 -- <1BYA-13 11/30/2016 960 9.7 24 8.1 55 <1 <1 <1 <10 364.81 21.50 0.00 343.31 25300 -- <1BYA-13 2/14/2017 160 16 1.4 1.2 8.5 <1 <1 <1 <10 364.81 19.15 0.00 345.66 <400 -- <1BYA-13 5/31/2017 110 0.58 <0.5 <0.5 <1 <1 <1 <1 <10 364.81 18.47 0.00 346.34 <400 -- <1BYA-13 8/24/2017 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 364.81 19.05 0.00 345.76 <400 -- <1BYA-13 11/29/2017 <50 <0.5 <4.5 <0.5 <1 <1 <1 1.9J 17.8J 364.81 19.90 0.00 344.91 <500 -- <1BYA-13 2/13/2018 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 364.81 20.45 0.00 344.36 <500 -- <1BYA-13 5/30/2018 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 364.81 20.55 0.00 344.26 776J -- <1BYA-13 8/23/2018 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 364.81 20.17 0.00 344.64 <500 -- <1 SWE - Surveyed Well Elevation Page 9 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-13 11/28/2018 291 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 364.81 21.40 0.00 343.41 1320 -- <1BYA-13 2/12/2019 8980 2.8 1.6 0.7J 5.1 <1 <1 <1 <10 364.81 19.00 0.00 345.81 29800 -- <1BYA-13 5/29/2019 3300 72.7 <1 <1 <2 <2 <2 <2 <20 364.81 15.13 0.00 349.68 2200 -- <2BYA-13 8/6/2019 253 0.6J 0.5J 0.5J 3.8 <1 <1 <1 <10 364.81 17.85 0.00 346.96 1036 -- <1BYA-13 2/13/2020 205 0.64J 2.3 2.1 13.7 <1 <1 <1 <10 364.81 17.95 0.00 346.86 536J -- <1BYA-13 5/20/2020 1280 4.3 40.2 13.9 93.2 <1 <1 <1 <10 364.81 15.32 0.00 349.49 757J -- <1BYA-13 8/19/2020 622 2.6 12.8 5.4 41.9 <1 <1 <1 <10 364.81 17.23 0.00 347.58 757J -- <1BYA-13 11/16/2020 214 <0.5 2.6 3.2 23.8 <1 <1 <1 <10 364.81 18.11 0.00 346.70 <500 -- <1BYA-13 2/18/2021 402 0.5J 5.6 <0.5 19.7 <1 <1 <1 <10 364.81 18.82 0.00 345.99 3050 -- <1BYA-13 6/28/2021 168 0.6J 9.3 4.2 32.8 <1 <1 <1 <10 364.81 31.60 0.00 333.21 <500 -- <1BYA-13 9/30/2021 134 0.5J 7.1 2.8 21.2 <1 <1 <1 <10 364.81 19.55 0.00 345.26 1080 -- <1BYA-13 11/17/2021 388 0.8J 11.4 4.6 35.0 <1 <1 <1 <10 364.81 19.82 0.00 344.99 1270 -- <1BYA-14 7/19/2005 -- -- -- -- -- -- -- -- -- NA NA -- NA -- -- -- BYA-15 7/19/2005 -- -- -- -- -- -- -- -- -- NA NA -- NA -- -- -- BYA-21 7/19/2005 249 <1 10.6 2.7 20.2 <2 <2 <2 734 361.99 10.65 0.00 351.34 <500 -- 4.1 BYA-21 10/3/2005 <50 <1 <1 <1 <2 <2 <2 <2 1340 361.99 11.20 0.00 350.79 <500 -- <2BYA-21 1/9/2006 <50 <1 <1 <1 <2 <2 <2 <2 176 361.99 12.00 0.00 349.99 <500 -- 2.4 SWE - Surveyed Well Elevation Page 10 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-21 4/3/2006 <50 <1 <1 <1 <2 <2 <2 <2 257 361.99 12.12 0.00 349.87 <500 -- 9.0 BYA-21 7/10/2006 147 <1 <1 <1 <2 <2 <2 <2 188 361.99 12.32 0.00 349.67 632 -- 4.7 BYA-21 10/9/2006 400 <1 <1 <1 <2 <2 <2 <2 192 361.99 13.03 0.00 348.96 2480 -- 5.4 BYA-21 1/8/2007 <50 <1 <1 <1 <2 <2 <2 <2 92.2 361.99 13.66 0.00 348.33 <500 -- 3.3 BYA-21 4/9/2007 62.7 <0.5 <0.5 <0.5 <1 <1 <1 <1 80.1 361.99 14.12 0.00 347.87 <500 -- 2.2 BYA-21 7/9/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 73.8 361.99 14.16 0.00 347.83 <500 -- 1.6JBYA-21 10/8/2007 15700 <1 <1 <1 <2 <2 <2 <2 58.8 361.99 14.16 0.00 347.83 26200 -- 1.1JBYA-21 1/28/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 168 361.99 13.04 0.00 348.95 1150 -- <1BYA-21 4/22/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 82.6 361.99 12.78 0.00 349.21 <500 -- <1BYA-21 7/7/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 149 361.99 12.96 0.00 349.03 606 -- <1BYA-21 10/3/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 39.1 361.99 13.12 0.00 348.87 <500 -- <1BYA-21 1/21/2009 <50 <0.5 <0.5 0.7J 5.5 <1 <1 <1 177 361.99 12.06 0.00 349.93 754 -- <1BYA-21 4/2/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 156 361.99 12.55 0.00 349.44 1020 -- <1BYA-21 7/20/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 65.4 361.99 13.45 0.00 348.54 <500 -- <1BYA-21 10/20/2009 90J <0.5 <0.5 <0.5 <1 <1 <1 <1 79.5 361.99 14.50 0.00 347.49 <500 -- 6.2 BYA-21 1/26/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 26.8 361.99 13.50 0.00 348.49 <500 -- <1BYA-21 4/7/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 68.8 361.99 13.15 0.00 348.84 935 -- 2.0 SWE - Surveyed Well Elevation Page 11 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-21 7/7/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 94.5 361.99 13.65 0.00 348.34 <500 -- <1BYA-21 10/18/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 44.8 361.99 14.28 0.00 347.71 <500 -- <1BYA-21 1/13/2011 200 <0.5 <0.5 <0.5 <1 <1 <1 <1 47.9 361.99 11.55 0.00 350.44 9870 -- <1BYA-21 4/11/2011 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 73.9 361.99 11.50 0.00 350.49 <500 -- <1BYA-21 7/12/2011 <50 <0.5 <0.5 <0.5 2.2 <1 <1 <1 67.6 361.99 12.03 0.00 349.96 3240 -- <1BYA-21 10/6/2011 58J <0.5 <0.5 <0.5 2.0 <1 <1 <1 120 361.99 12.67 0.00 349.32 3240 -- <1BYA-22 7/19/2005 205 <1 <1 <1 2.4 <2 <2 <2 3000 361.70 11.15 0.00 350.55 <500 -- 3.3 BYA-22 10/3/2005 212 <1 <1 <1 2.0 <2 <2 <2 6170 361.70 11.95 0.00 349.75 <500 -- 3.7 BYA-22 1/9/2006 61.3 <1 <1 <1 <2 <2 <2 <2 1900 361.70 11.60 0.00 350.10 <500 -- <2BYA-22 4/3/2006 223 26.0 <1 <1 <2 <2 <2 <2 2790 361.70 11.52 0.00 350.18 <500 -- 25.7BYA-22 7/10/2006 322 9.6 <1 <1 <2 <2 <2 <2 1670 361.70 12.00 0.00 349.70 1810 -- 18.8BYA-22 10/9/2006 150 <1 <1 <1 <2 <2 <2 <2 1480 361.70 12.69 0.00 349.01 856 -- 13.5BYA-22 1/8/2007 227 <1 <1 <1 <2 <2 <2 <2 1930 361.70 13.22 0.00 348.48 <500 -- 12.1BYA-22 4/9/2007 344 7.5 <0.5 <0.5 <1 <1 <1 <1 72.3 361.70 13.80 0.00 347.90 <500 -- 8.5 BYA-22 7/9/2007 332 1.5 <0.5 <0.5 <1 <1 <1 <1 1180 361.70 13.78 0.00 347.92 <500 -- 10.2BYA-22 10/8/2007 533 1.3 <0.5 <0.5 <1 <1 <1 <1 1660 361.70 13.78 0.00 347.92 <500 -- 9.0 BYA-22 1/28/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 678 361.70 12.12 0.00 349.58 <500 -- <1 SWE - Surveyed Well Elevation Page 12 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-22 4/21/2008 <50 <0.5 1.0 <0.5 1.4J <1 <1 <1 1360 361.70 12.97 0.00 348.73 <500 -- 6.5 BYA-22 7/7/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 964 361.70 12.32 0.00 349.38 563 -- <1BYA-22 10/3/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 829 361.70 12.71 0.00 348.99 <500 -- <1BYA-22 1/21/2009 666 8.2 <0.5 2.2 3.8 <1 <1 <1 771 361.70 10.35 0.00 351.35 3420 -- 21.3BYA-22 4/2/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 578 361.70 12.14 0.00 349.56 <500 -- 9.5 BYA-22 7/20/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 589 361.70 13.06 0.00 348.64 <500 -- <1BYA-22 10/20/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 1240 361.70 13.66 0.00 348.04 <500 -- 6.2 BYA-22 1/26/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 263 361.70 12.35 0.00 349.35 <500 -- 2.9 BYA-22 4/7/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 453 361.70 12.80 0.00 348.90 <500 -- 4.1 BYA-22 7/7/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 284 361.70 13.15 0.00 348.55 <500 -- <1BYA-22 10/18/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 823 361.70 13.82 0.00 347.88 <500 -- <1BYA-22 1/13/2011 158 21.7 0.8J 7.3 19.0 <1 <1 <1 384 361.70 10.97 0.00 350.73 <500 -- 12.8BYA-22 4/11/2011 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 283 361.70 11.15 0.00 350.55 <500 -- 4.7 BYA-22 7/12/2011 62J <0.5 <0.5 <0.5 <1 <1 <1 <1 486 361.70 11.80 0.00 349.90 <500 -- 4.4 BYA-22 10/6/2011 <50 <0.5 <0.5 <0.5 2.0 <1 <1 <1 459 361.70 12.32 0.00 349.38 <500 -- 3.3 BYA-23 7/19/2005 3230 16.5 1.6 <1 18.7 <2 <2 <2 42700 361.40 10.87 0.00 350.53 <500 -- 44.7BYA-23 10/3/2005 3150 483 <20 47.7 276 <20 <20 <20 45400 361.40 11.32 0.00 350.08 37500 -- 131 SWE - Surveyed Well Elevation Page 13 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-23 1/9/2006 1300 209 <10 10.6 58.0 <20 <20 <20 44200 361.40 11.45 0.00 349.95 2180 -- 99.7BYA-23 4/3/2006 24200 16000* 216 600 2410* <20 <20 <20 157000* 361.40 11.48 0.00 349.92 689 -- 3020* BYA-23 7/10/2006 57700 12500 <50 549 820 <100 <100 <100 70400 361.40 11.81 0.00 349.59 8450 -- 1070 BYA-23 10/9/2006 9670 6140 <50 <50 <100 <100 <100 <100 55200 361.40 12.38 0.00 349.02 1350 -- 211BYA-23 1/8/2007 6660 2850** <10 34.0 50.9 <20 <20 <20 70700 361.40 12.92 0.00 348.48 <500 -- 101BYA-23 4/9/2007 4470 2210 <10 29.0 74.8 <20 <20 <20 52200 361.40 13.24 0.00 348.16 1040 -- 164BYA-23 7/9/2007 27300 11300** 30.0 433 77.2 <20 <20 <20 85600** 361.40 13.27 0.00 348.13 <500 -- 728**BYA-23 10/8/2007 32100 9300 321 <50 <100 <100 <100 <100 76200 361.40 17.30 0.00 344.10 2100 -- 200BYA-23 1/28/2008 1550 344 <25 <25 <50 <50 <50 <50 72400 361.40 12.10 0.00 349.30 1560 -- 97.0JBYA-23 4/21/2008 4480 312 <25 <25 <50 <50 <50 <50 137000 361.40 12.14 0.00 349.26 10700 -- 127BYA-23 7/7/2008 1450 <50 <50 <50 <100 <100 <100 <100 195000 361.40 11.92 0.00 349.48 1030 -- 74.0JBYA-23 10/3/2008 2130 56.0 <10 <10 <20 <20 <20 <20 114,000 361.40 11.98 0.00 349.42 680 -- 75.4BYA-23 1/21/2009 1300 63.2 <5 5.2J 20.3 <10 <10 <10 29200** 361.40 9 .92 0.00 351.48 1030 -- 58.4BYA-23 4/2/2009 615J 72.8 <10 <10 <20 <20 <20 <20 19600 361.40 11.85 0.00 349.55 14660 -- 34.2JBYA-23 7/20/2009 251 12.8 <5 <5 <10 <10 <10 <10 18900 361.40 12.76 0.00 348.64 <500 -- <10 BYA-23 10/20/2009 590 42.8 <5 <5 12.3J <10 <10 <10 14300 361.40 13.25 0.00 348.15 <500 -- 18.0JBYA-23 1/26/2010 731 109 <1.25 <1.25 10.6 <2.5 <2.5 <2.5 9410 361.40 11.76 0.00 349.64 545J -- 123 SWE - Surveyed Well Elevation Page 14 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-23 4/7/2010 375 17.8 <2.5 <2.5 <5 <5 <5 <5 14600** 361.40 12.50 0.00 348.90 <500 -- 11.2BYA-23 7/7/2010 448 12.7 <5 <5 <10 <10 <10 <10 16900 361.40 12.76 0.00 348.64 <500 -- <10 BYA-23 10/18/2010 392 15.4 <5 <5 <10 <10 <10 <10 20400** 361.40 13.45 0.00 347.95 941 -- <10 BYA-23 1/13/2011 3340 1260 267 30.0 76.1 <10 <10 <10 5210 361.40 10.84 0.00 350.56 1230 -- 304BYA-23 4/11/2011 4880 3940** 14.7 24.4 27.4 <10 <10 <10 10400 361.40 10.97 0.00 350.43 <500 -- 70.4BYA-23 7/12/2011 936 180 1.3J 1.5J 3.2 <2.5 <2.5 <2.5 6610** 361.40 11.55 0.00 349.85 <500 -- 41.8BYA-23 10/6/2011 1120 321** 1.3 3.0 6.0 <1 <1 <1 7890** 361.40 12.15 0.00 349.25 <500 -- 44.2BYA-24 7/19/2005 472 <1 1.4 <1 6.2 <2 <2 <2 6130 360.75 10.50 0.00 350.25 <500 -- 30.0BYA-24 10/3/2005 242 <2 2.6 <2 3.2J <4 <4 <4 13600 360.75 11.13 0.00 349.62 <500 -- 26.0BYA-24 1/9/2006 61.7 10.6 <1 <1 3.2 <2 <2 <2 3480 360.75 10.84 0.00 349.91 <500 -- 24.0BYA-24 4/3/2006 1340 449* 3.2 2.4 5.2 <2 <2 4.5 2140 360.75 10.86 0.00 349.89 <500 -- 176BYA-24 7/10/2006 618 86.8 1.2 <1 <2 <2 <2 2.4 6430 360.75 11.27 0.00 349.48 1840 -- 92.4BYA-24 10/9/2006 976 3.3 <2 <2 <4 <4 <4 <4 5840 360.75 11.76 0.00 348.99 787 -- 69.0BYA-24 1/8/2007 5340 2.3 <2 <2 <4 <4 <4 <4 2990 360.75 12.18 0.00 348.57 16500 -- 64.0BYA-24 4/9/2007 306 3.0 <1.25 <1.25 <2.5 <2.5 <2.5 <2.5 3300 360.75 12.53 0.00 348.22 602 -- 86.2BYA-24 7/9/2007 2060 45.3 <5 <5 <10 <10 <10 <10 7350 360.75 12.47 0.00 348.28 <500 -- 65.3BYA-24 10/8/2007 845 24.3 <2.5 <2.5 <5 <5 <5 <5 4750 360.75 12.34 0.00 348.41 3880 -- 30.4 SWE - Surveyed Well Elevation Page 15 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-24 1/28/2008 <50 16.0 <0.5 <0.5 <1 <1 <1 <1 1360 360.75 10.20 0.00 350.55 <500 -- 1.6JBYA-24 4/21/2008 221 8.6 1.1 1.2 2.2 <1 <1 <1 5750** 360.75 11.43 0.00 349.32 <500 -- 136.3BYA-24 7/7/2008 73.5 <2.5 <2.5 <2.5 <5 <5 <5 <5 9210 360.75 11.16 0.00 349.59 <500 -- 15.7BYA-24 10/3/2008 185 1.5J <1 <1 <2 <2 <2 <2 8490 360.75 11.34 0.00 349.41 1820 -- 7.1 BYA-24 1/21/2009 484 32.1 2.3 6.5 8.1 <2 <2 <2 1350 360.75 10.20 0.00 350.55 <500 -- 54.3BYA-24 4/2/2009 422 1.7 <0.5 1.1 <1 <1 <1 <1 1460 360.75 11.28 0.00 349.47 <500 -- 31.7BYA-24 7/20/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 1190 360.75 12.10 0.00 348.65 <500 -- 2.5 BYA-24 10/20/2009 117 2.5 <0.5 <0.5 <1 <1 <1 <1 833 360.75 12.55 0.00 348.20 <500 -- 10.1BYA-24 1/26/2010 <50 1.1 <0.5 <0.5 <1 <1 <1 <1 54.2 360.75 11.30 0.00 349.45 <500 -- 2.0 BYA-24 4/7/2010 162 <0.5 <0.5 <0.5 <1 <1 <1 <1 419 360.75 12.00 0.00 348.75 <500 -- 6.9 BYA-24 7/7/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 514 360.75 12.15 0.00 348.60 <500 -- 1.1JBYA-24 10/18/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 1050 360.75 12.80 0.00 347.95 <500 -- 13.3BYA-24 1/13/2011 298 83.5 4.7 3.0 14.3 <1 <1 <1 449 360.75 10.20 0.00 350.55 <500 -- 46.7BYA-24 4/11/2011 211 6.8 <0.5 <0.5 <1 <1 <1 <1 475 360.75 10.38 0.00 350.37 <500 -- 14.6BYA-24 7/12/2011 87J <0.5 1.5 0.9J 6.5 <1 <1 <1 769 360.75 11.00 0.00 349.75 <500 -- 5.5 BYA-24 10/6/2011 105 4.0 <0.5 <0.5 2.0 <1 <1 <1 842 360.75 11.47 0.00 349.28 <500 -- 6.2 BYA-25 7/19/2005 -- -- -- -- -- -- -- -- -- 366.50 14.75 0.00 351.75 -- -- -- SWE - Surveyed Well Elevation Page 16 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-25 10/3/2005 <50 <1 2.9 <1 7.1 <2 <2 <2 <10 366.50 14.41 0.00 352.09 <500 -- <2BYA-25 1/9/2006 <50 <1 2.9 <1 4.9 <2 <2 <2 <10 366.50 16.48 0.00 350.02 <500 -- <2BYA-25 4/3/2006 <50 <1 <1 <1 <2 <2 <2 <2 <10 366.50 16.68 0.00 349.82 <500 -- <2BYA-25 7/10/2006 <50 <1 <1 <1 <2 <2 <2 <2 <10 366.50 16.84 0.00 349.66 <500 -- <2BYA-25 10/9/2006 <50 <1 <1 <1 <2 <2 <2 <2 <10 366.50 17.66 0.00 348.84 <500 -- <2BYA-25 1/8/2007 <50 <1 <1 <1 <2 <2 <2 <2 <10 366.50 18.04 0.00 348.46 <500 -- <2BYA-25 4/9/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 366.50 18.66 0.00 347.84 <500 -- <1BYA-25 7/9/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 366.50 18.93 0.00 347.57 <500 -- <1BYA-25 10/8/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 366.50 18.73 0.00 347.77 <500 -- <1BYA-25 1/28/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 366.50 18.02 0.00 348.48 <500 -- <1BYA-25 4/22/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 366.50 17.34 0.00 349.16 <500 -- <1BYA-25 7/7/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 366.50 17.60 0.00 348.90 <500 -- <1BYA-25 10/3/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 366.50 17.81 0.00 348.69 <500 -- <1BYA-25 1/21/2009 -- -- -- -- -- -- -- -- -- 366.50 17.35 0.00 349.15 -- -- --BYA-25 4/2/2009 -- -- -- -- -- -- -- -- -- 366.50 17.11 0.00 349.39 -- -- --BYA-25 7/20/2009 -- -- -- -- -- -- -- -- -- 366.50 18.06 0.00 348.44 -- -- --BYA-25 10/20/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 366.50 18.85 0.00 347.65 <500 -- <1 SWE - Surveyed Well Elevation Page 17 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-25 1/26/2010 -- NO SAMPLE / -- 366.50 18.60 0.00 347.90 -- -- ANNUAL

SAMPLE POINT -- --
BYA-25 4/7/2010 -- -- -- -- -- -- -- -- -- 366.50 17.70 0.00 348.80 -- -- --BYA-25 7/7/2010 -- -- -- -- -- -- -- -- -- 366.50 18.20 0.00 348.30 -- -- --BYA-25 10/18/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 366.50 19.78 0.00 346.72 <500 -- <1BYA-25 1/13/2011 -- -- -- -- -- -- -- -- -- 366.50 16.22 0.00 350.28 -- -- --BYA-25 4/11/2011 -- -- -- -- -- -- -- -- -- 366.50 15.96 0.00 350.54 -- -- --BYA-25 7/12/2011 -- WELL -- REMOVED -- -- -- -- -- 366.50 NA 0.00 NA -- -- --BYA-26 7/19/2005 <50 <1 6.6 1.6 12.4 <2 <2 <2 16.6 366.27 14.94 0.00 351.33 <500 -- <2BYA-26 10/3/2005 <50 <1 6.1 1.3 10.1 <2 <2 <2 <10 366.27 15.47 0.00 350.80 <500 -- <2BYA-26 1/9/2006 74.0 <1 <1 <1 2.0 <2 <2 <2 145 366.27 16.48 0.00 349.79 <500 -- <2BYA-26 4/3/2006 212 <1 <1 <1 <2 <2 <2 <2 163 366.27 16.66 0.00 349.61 <500 -- <2BYA-26 7/10/2006 126 <1 <1 <1 <2 <2 <2 <2 72.1 366.27 17.81 0.00 348.46 <500 -- 8.8 BYA-26 10/9/2006 170 <1 <1 <1 <2 <2 <2 <2 53.2 366.27 17.45 0.00 348.82 <500 -- 3.1 BYA-26 1/8/2007 118 <1 <1 <1 <2 <2 <2 <2 50.1 366.27 18.09 0.00 348.18 <500 -- 3.7 BYA-26 4/9/2007 90.5 <0.5 <0.5 <0.5 <1 <1 <1 <1 50.8 366.27 18.70 0.00 347.57 <500 -- 4.2 BYA-26 7/9/2007 106 <0.5 <0.5 <0.5 <1 <1 <1 <1 26.0 366.27 18.93 0.00 347.34 <500 -- 3.5 BYA-26 10/8/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 14.9J 366.27 18.68 0.00 347.59 <500 -- 4.0 SWE - Surveyed Well Elevation Page 18 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-26 1/28/2008 <50 <0.5 0.6J <0.5 2.2 <1 <1 <1 12.8J 366.27 17.80 0.00 348.47 <500 -- 1.2JBYA-26 4/22/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 366.27 17.35 0.00 348.92 <500 -- <1BYA-26 7/7/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 366.27 17.64 0.00 348.63 <500 -- <1BYA-26 10/3/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 366.27 17.78 0.00 348.49 <500 -- 2.2 BYA-26 1/21/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 366.27 17.35 0.00 348.92 <500 -- <1BYA-26 4/2/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 366.27 17.08 0.00 349.19 <500 -- <1BYA-26 7/20/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 30.7 366.27 18.05 0.00 348.22 <500 -- <1BYA-26 10/20/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 366.27 18.90 0.00 347.37 <500 -- <1BYA-26 1/26/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 366.27 18.56 0.00 347.71 <500 -- <1BYA-26 4/7/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 366.27 17.60 0.00 348.67 <500 -- <1BYA-26 7/7/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 366.27 18.20 0.00 348.07 <500 -- <1BYA-26 10/18/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 366.27 18.95 0.00 347.32 <500 -- <1BYA-26 1/13/2011 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 366.27 16.13 0.00 350.14 <500 -- 1.4JBYA-26 4/11/2011 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 366.27 15.95 0.00 350.32 <500 -- <1BYA-26 7/12/2011 -- WELL -- REMOVED -- -- -- -- -- 366.27 NA 0.00 NA -- -- --BYA-27 7/19/2005 -- -- -- -- -- -- -- -- -- 366.70 15.40 0.00 351.30 -- -- --BYA-27 10/3/2005 318 <1 2.6 <1 4.4 <2 <2 <2 731 366.70 16.00 0.00 350.70 <500 -- <2 SWE - Surveyed Well Elevation Page 19 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-27 1/9/2006 <50 <1 1.6 <1 2.5 <2 <2 <2 <10 366.70 16.98 0.00 349.72 <500 -- <2BYA-27 4/3/2006 <50 <1 <1 <1 <2 <2 <2 <2 <10 366.70 17.19 0.00 349.51 <500 -- <2BYA-27 7/10/2006 <50 <1 <1 <1 <2 <2 <2 <2 <10 366.70 17.39 0.00 349.31 <500 -- <2BYA-27 10/9/2006 <50 <1 <1 <1 <2 <2 <2 <2 <10 366.70 18.03 0.00 348.67 <500 -- <2BYA-27 1/8/2007 <50 <1 <1 <1 <2 <2 <2 <2 <10 366.70 18.64 0.00 348.06 <500 -- <2BYA-27 4/9/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 366.70 19.24 0.00 347.46 <500 -- 1.7JBYA-27 7/9/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 366.70 19.36 0.00 347.34 <500 -- 1.9JBYA-27 10/8/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 366.70 19.21 0.00 347.49 <500 -- 1.9JBYA-27 1/28/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 366.70 18.29 0.00 348.41 <500 -- 7.1 BYA-27 4/22/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 366.70 17.88 0.00 348.82 <500 -- <1BYA-27 7/7/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 366.70 18.12 0.00 348.58 <500 -- 1.2JBYA-27 10/3/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 366.70 18.32 0.00 348.38 <500 -- 1.8JBYA-27 1/21/2009 -- -- -- -- -- -- -- -- -- 366.70 17.90 0.00 348.80 -- -- --BYA-27 4/2/2009 -- -- -- -- -- -- -- -- -- 366.70 17.64 0.00 349.06 -- -- --BYA-27 7/20/2009 -- -- -- -- -- -- -- -- -- 366.70 18.60 0.00 348.10 -- -- --BYA-27 10/20/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 366.70 19.40 0.00 347.30 <500 -- 1.5JBYA-27 1/26/2010 -- NO SAMPLE / -- 366.70 19.05 0.00 347.65 -- -- ANNUAL

SAMPLE POINT -- --
SWE - Surveyed Well Elevation Page 20 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-27 4/7/2010 -- -- -- -- -- -- -- -- -- 366.70 18.15 0.00 348.55 -- -- --BYA-27 7/7/2010 -- -- -- -- -- -- -- -- -- 366.70 18.71 0.00 347.99 -- -- --BYA-27 10/18/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 366.70 19.49 0.00 347.21 <500 -- <1BYA-27 1/13/2011 -- -- -- -- -- -- -- -- -- 366.70 16.68 0.00 350.02 -- -- --BYA-27 4/11/2011 -- -- -- -- -- -- -- -- -- 366.70 16.45 0.00 350.25 -- -- --BYA-27 7/12/2011 -- WELL -- REMOVED -- -- -- -- -- 366.70 NA 0.00 NA -- -- --BYA-28 7/19/2005 74.8 <1 9.8 1.8 19.0 <2 <2 <2 81.4 363.73 12.33 0.00 351.40 <500 -- <2BYA-28 10/3/2005 <50 <1 6.1 1.2 9.3 <2 <2 <2 200 363.73 12.97 0.00 350.76 <500 -- 6.9 BYA-28 1/9/2006 64.3 <1 1.4 <1 3.1 <2 <2 <2 <10 363.73 13.95 0.00 349.78 <500 -- <2BYA-28 4/3/2006 106 <1 <1 <1 <2 <2 <2 <2 <10 363.73 14.13 0.00 349.60 <500 -- 2.1 BYA-28 7/10/2006 226 <1 <1 <1 <2 <2 <2 <2 <10 363.73 14.30 0.00 349.43 908 -- 2.0 BYA-28 10/9/2006 100 <1 <1 <1 <2 <2 <2 <2 <10 363.73 15.07 0.00 348.66 <500 -- 5.3 BYA-28 1/8/2007 78.9 <1 <1 <1 <2 <2 <2 <2 <10 363.73 15.60 0.00 348.13 <500 -- 2.5 BYA-28 4/9/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.73 16.07 0.00 347.66 <500 -- 1.8JBYA-28 7/9/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.73 16.40 0.00 347.33 <500 -- 3.9 BYA-28 10/8/2007 55.0 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.73 16.22 0.00 347.51 <500 -- 3.2 BYA-28 1/28/2008 237 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.73 16.29 0.00 347.44 <500 -- 1.3J SWE - Surveyed Well Elevation Page 21 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-28 4/22/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.73 14.74 0.00 348.99 <500 -- <1BYA-28 7/7/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.73 15.05 0.00 348.68 <500 -- 1.7JBYA-28 10/3/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.73 15.23 0.00 348.50 <500 -- 4.6 BYA-28 1/21/2009 <50 <0.5 <0.5 <0.5 2.1 <1 <1 <1 <10 363.73 14.10 0.00 349.63 <500 -- 1.6JBYA-28 4/2/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.73 14.57 0.00 349.16 <500 -- 1.8JBYA-28 7/20/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.73 15.65 0.00 348.08 <500 -- 1.7JBYA-28 10/20/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.73 16.36 0.00 347.37 <500 -- 1.4JBYA-28 1/26/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.73 16.10 0.00 347.63 <500 -- 1.6JBYA-28 4/7/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.73 15.20 0.00 348.53 <500 -- <1BYA-28 7/7/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.73 15.65 0.00 348.08 <500 -- <1BYA-28 10/18/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.73 16.40 0.00 347.33 <500 -- <1BYA-28 1/13/2011 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.73 14.60 0.00 349.13 <500 -- 1.6JBYA-28 4/11/2011 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.73 13.50 0.00 350.23 <500 -- <1BYA-28 7/12/2011 -- WELL -- REMOVED -- -- -- -- -- 363.73 NA 0.00 NA -- -- --BYA-29 7/19/2005 -- -- -- -- -- -- -- -- -- 364.73 13.40 0.00 351.33 -- -- --BYA-29 10/3/2005 <50 <1 1.5 <1 2.1 <2 <2 <2 <10 364.73 14.05 0.00 350.68 <500 -- <2BYA-29 1/9/2006 <50 <1 <1 <1 2.0 <2 <2 <2 <10 364.73 15.02 0.00 349.71 <500 -- <2 SWE - Surveyed Well Elevation Page 22 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-29 4/3/2006 <50 <1 <1 <1 <2 <2 <2 <2 <10 364.73 15.20 0.00 349.53 <500 -- <2BYA-29 7/10/2006 <50 <1 <1 <1 <2 <2 <2 <2 <10 364.73 15.38 0.00 349.35 <500 -- <2BYA-29 10/9/2006 <50 <1 <1 <1 <2 <2 <2 <2 <10 364.73 16.12 0.00 348.61 <500 -- <2BYA-29 1/8/2007 <50 <1 <1 <1 <2 <2 <2 <2 <10 364.73 16.68 0.00 348.05 <500 -- <2BYA-29 4/9/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 364.73 17.27 0.00 347.46 <500 -- 1.9JBYA-29 7/9/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 364.73 17.60 0.00 347.13 <500 -- 4.7 BYA-29 10/8/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 364.73 17.20 0.00 347.53 <500 -- 10.3BYA-29 1/28/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 364.73 16.40 0.00 348.33 <500 -- 13.5BYA-29 4/22/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 364.73 15.86 0.00 348.87 <500 -- 1.3JBYA-29 7/7/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 364.73 16.19 0.00 348.54 <500 -- 1.9JBYA-29 10/3/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 364.73 16.35 0.00 348.38 <500 -- 8.4 BYA-29 1/21/2009 -- -- -- -- -- -- -- -- -- 364.73 15.86 0.00 348.87 -- -- --BYA-29 4/2/2009 -- -- -- -- -- -- -- -- -- 364.73 15.65 0.00 349.08 -- -- --BYA-29 7/20/2009 -- -- -- -- -- -- -- -- -- 364.73 16.64 0.00 348.09 -- -- --BYA-29 10/20/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 364.73 17.42 0.00 347.31 <500 -- 2.3 BYA-29 1/26/2010 -- NO SAMPLE / -- 364.73 17.05 0.00 347.68 -- -- ANNUAL

SAMPLE POINT -- --
BYA-29 4/7/2010 -- -- -- -- -- -- -- -- -- 364.73 16.16 0.00 348.57 -- -- -- SWE - Surveyed Well Elevation Page 23 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-29 7/7/2010 -- -- -- -- -- -- -- -- -- 364.73 16.71 0.00 348.02 -- -- --BYA-29 10/18/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 364.73 17.49 0.00 347.24 <500 -- <1BYA-29 1/13/2011 -- -- -- -- -- -- -- -- -- 364.73 14.65 0.00 350.08 -- -- --BYA-29 4/11/2011 -- -- -- -- -- -- -- -- -- 364.73 14.50 0.00 350.23 -- -- --BYA-29 7/12/2011 -- WELL -- REMOVED -- -- -- -- -- 364.73 NA 0.00 NA -- -- --BYA-30 7/19/2005 <50 5.1 2.1 <1 4.1 <2 <2 <2 <10 365.44 14.24 0.00 351.20 <500 -- <2BYA-30 10/3/2005 <50 5.0 1.5 <1 2.5 <2 <2 <2 48.8 365.44 14.85 0.00 350.59 <500 -- <2BYA-30 1/9/2006 <50 1.2 <1 <1 <2 <2 <2 <2 134 365.44 15.85 0.00 349.59 <500 -- <2BYA-30 4/3/2006 <50 <1 <1 <1 <2 <2 <2 <2 33.0 365.44 15.98 0.00 349.46 <500 -- 2.1 BYA-30 7/10/2006 390 66.2 <1 <1 <2 <2 <2 <2 241 365.44 16.18 0.00 349.26 <500 -- 2.0 BYA-30 10/9/2006 <50 <1 <1 <1 <2 <2 <2 <2 58.4 365.44 16.31 0.00 349.13 <500 -- 2.3 BYA-30 1/8/2007 <50 <1 <1 <1 <2 <2 <2 <2 58.0 365.44 17.46 0.00 347.98 <500 -- 3.5 BYA-30 4/9/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 8.1J 365.44 18.07 0.00 347.37 <500 -- 4.1 BYA-30 7/9/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 365.44 18.32 0.00 347.12 <500 -- 6.4 BYA-30 10/8/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 365.44 17.98 0.00 347.46 <500 -- 1.2JBYA-30 1/28/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 365.44 17.32 0.00 348.12 <500 -- <1BYA-30 4/22/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 365.44 16.61 0.00 348.83 <500 -- <1 SWE - Surveyed Well Elevation Page 24 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-30 7/7/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 365.44 16.93 0.00 348.51 <500 -- 1.0JBYA-30 10/3/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 365.44 17.13 0.00 348.31 <500 -- 1.6JBYA-30 1/21/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 27.2 365.44 16.72 0.00 348.72 <500 -- <1BYA-30 4/2/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 35.8 365.44 16.46 0.00 348.98 <500 -- <1BYA-30 7/20/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 31.6 365.44 17.37 0.00 348.07 <500 -- <1BYA-30 10/20/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 91.9 365.44 18.20 0.00 347.24 <500 -- <1BYA-30 1/26/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 28.6 365.44 17.31 0.00 348.13 <500 -- 1.4JBYA-30 4/7/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 29.4 365.44 17.00 0.00 348.44 <500 -- <1BYA-30 7/7/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 34.7 365.44 17.51 0.00 347.93 <500 -- <1BYA-30 10/18/2010 <50 0.6J <0.5 <0.5 <1 <1 <1 <1 37.8 365.44 18.29 0.00 347.15 <500 -- <1BYA-30 1/13/2011 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 365.44 15.43 0.00 350.01 <500 -- <1BYA-30 4/11/2011 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 365.44 15.25 0.00 350.19 <500 -- <1BYA-30 7/12/2011 -- WELL -- REMOVED -- -- -- -- -- 365.44 NA 0.00 NA -- -- --BYA-31 7/19/2005 -- -- -- -- -- -- -- -- -- 363.83 12.57 0.00 351.26 -- -- --BYA-31 10/3/2005 56.8 <1 3.7 <1 7.6 <2 <2 <2 31.1 363.83 13.21 0.00 350.62 <500 -- 5.8 BYA-31 1/9/2006 <50 <1 <1 <1 2.1 <2 <2 <2 70.5 363.83 14.19 0.00 349.64 <500 -- <2BYA-31 4/3/2006 <50 <1 <1 <1 <2 <2 <2 <2 166 363.83 14.35 0.00 349.48 <500 -- 12.3 SWE - Surveyed Well Elevation Page 25 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-31 7/10/2006 79.7 <1 <1 <1 <2 <2 <2 <2 97.3 363.83 15.53 0.00 348.30 <500 -- 3.3 BYA-31 10/9/2006 <50 <1 <1 <1 <2 <2 <2 <2 51.9 363.83 15.22 0.00 348.61 <500 -- 8.3 BYA-31 1/8/2007 <50 <1 <1 <1 <2 <2 <2 <2 11.8 363.83 15.80 0.00 348.03 <500 -- <2BYA-31 4/9/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 15.6J 363.83 16.40 0.00 347.43 <500 -- 16.2BYA-31 7/9/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.83 17.67 0.00 346.16 <500 -- 12.3BYA-31 10/8/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.83 16.32 0.00 347.51 <500 -- 11.0BYA-31 1/28/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 27.2 363.83 15.47 0.00 348.36 <500 -- 1.5JBYA-31 4/22/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.83 17.41 0.00 346.42 <500 -- 3.0 BYA-31 7/7/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.83 15.30 0.00 348.53 <500 -- 8.0 BYA-31 10/3/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.83 15.46 0.00 348.37 <500 -- 28.4BYA-31 1/21/2009 -- -- -- -- -- -- -- -- -- 363.83 14.98 0.00 348.85 -- -- --BYA-31 4/2/2009 -- -- -- -- -- -- -- -- -- 363.83 14.80 0.00 349.03 -- -- --BYA-31 7/20/2009 -- -- -- -- -- -- -- -- -- 363.83 15.76 0.00 348.07 -- -- --BYA-31 10/20/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 183 363.83 16.55 0.00 347.28 <500 -- 3.9 BYA-31 1/26/2010 -- NO SAMPLE / -- 363.83 16.20 0.00 347.63 -- -- ANNUAL

SAMPLE POINT -- --
BYA-31 4/7/2010 -- -- -- -- -- -- -- -- -- 363.83 15.30 0.00 348.53 -- -- --BYA-31 7/7/2010 -- -- -- -- -- -- -- -- -- 363.83 15.85 0.00 347.98 -- -- -- SWE - Surveyed Well Elevation Page 26 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-31 10/18/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 103 363.83 16.70 0.00 347.13 <500 -- 1.5JBYA-31 1/13/2011 -- -- -- -- -- -- -- -- -- 363.83 13.86 0.00 349.97 -- -- --BYA-31 4/11/2011 -- -- -- -- -- -- -- -- -- 363.83 13.55 0.00 350.28 -- -- --BYA-31 7/12/2011 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 135 363.83 14.38 0.00 349.45 <500 -- 4.4 BYA-31 10/6/2011 290 31.6 <0.5 <0.5 2.3 <1 <1 <1 128 363.83 15.12 0.00 348.71 <500 -- 8.4 BYA-31 1/23/2012 386 8.8 20.3 21.3 82.1 <1 <1 <1 241 363.83 15.98 0.00 347.85 <500 -- 36.2BYA-31 4/10/2012 110 1.5 <0.5 <0.5 <1 <1 <1 <1 105 363.32 16.12 0.00 347.20 <500 -- 20.0BYA-31 7/2/2012 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 131 363.32 16.27 0.00 347.05 <500 -- 30.2BYA-31 10/1/2012 <50 <0.5 1.6 0.5J 3.8 <1 <1 <1 73.4 363.32 16.62 0.00 346.70 <500 -- 3.2 BYA-31 1/21/2013 360 13.9 30.9 12.7 50.7 <1 <1 <1 221 363.32 16.66 0.00 346.66 <500 -- 26.6BYA-31 4/9/2013 208 8.3 <0.5 <0.5 1.1J <1 <1 <1 270 363.32 16.60 0.00 346.72 <500 -- 31.9BYA-31 7/11/2013 <50 <0.5 <0.5 <0.5 1.5J <1 <1 <1 140 363.32 17.00 0.00 346.32 <500 -- 6.8 BYA-31 10/18/2013 <50 <0.5 0.7J <0.5 2.2 <1 <1 <1 213 363.32 17.47 0.00 345.85 <500 -- 9.9 BYA-31 1/17/2014 88J 1.8 1.3 1.5 9.2 <1 <1 <1 193 363.32 17.80 0.00 345.52 <500 -- 13.8BYA-31 6/12/2014 <50 0.9J <0.5 <0.5 <1 <1 <1 <1 175 363.32 18.05 0.00 345.27 <500 -- 13.2BYA-31 8/27/2014 147 <0.5 <0.5 <0.5 <1 <1 <1 <1 294 363.32 18.15 0.00 345.17 <500 -- 4.2 BYA-31 11/11/2014 <50 <0.5 1.2 0.8J 7.7 <1 <1 <1 95.2 363.32 18.12 0.00 345.20 <500 -- 10.8 SWE - Surveyed Well Elevation Page 27 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-31 3/2/2015 93J 1.2 8.9 2.1 15.6 <1 <1 <1 100 363.32 17.90 0.00 345.42 <500 -- 4.0 BYA-31 5/19/2015 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.32 17.91 0.00 345.41 <500 -- 3.8 BYA-31 8/18/2015 202 1.3 12.1 3.9 29.3 <1 <1 <1 145 363.32 18.50 0.00 344.82 <500 -- 7.8 BYA-31 11/24/2015 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 51.6 363.32 19.09 0.00 344.23 <500 -- 2.2 BYA-31 2/16/2016 79J 0.9J 5.2 1.1 9.8 <1 <1 <1 10.9J 363.32 19.98 0.00 343.34 <500 -- 2.8 BYA-31 5/31/2016 <50 1.4 <0.5 <0.5 <1 <1 <1 1.0J 31.1 363.32 19.40 0.00 343.92 <500 -- 2.4 BYA-31 8/15/2016 <50 1.8 0.9J <0.5 4.2 <1 <1 <1 23.1 363.32 19.76 0.00 343.56 <500 -- 1.3JBYA-31 11/30/2016 540 4.1 21 9.6 60 <1 <1 <1 <10 363.32 20.21 0.00 343.11 <400 -- <1BYA-31 2/14/2017 320 5.9 0.72 1.2 7.9 <1 <1 <1 <10 363.32 17.95 0.00 345.37 <400 -- <1BYA-31 5/31/2017 86 3.6 0.61 <0.5 2.59 <1 <1 <1 52 363.32 17.18 0.00 346.14 <400 -- 1.9 BYA-31 8/24/2017 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 110 363.32 17.80 0.00 345.52 <400 -- 1.5 BYA-31 11/29/2017 <50 0.6J <0.5 <0.5 <1 <1 <1 <1 24.4 363.32 18.66 0.00 344.66 <500 -- 3.5 BYA-31 2/13/2018 270 11.8 <0.5 <0.5 <1 <1 <1 <1 101 363.32 19.20 0.00 344.12 <500 -- 7.0 BYA-31 5/30/2018 <50 0.7J <0.5 <0.5 <1 <1 <1 <1 20.4 363.32 19.30 0.00 344.02 <500 -- 2.96JBYA-31 8/23/2018 174 18.0 <0.5 <0.5 <1 <1 <1 <1 61.9 363.32 19.55 0.00 343.77 <500 -- 2.5 BYA-31 11/28/2018 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 11.4J 363.32 20.10 0.00 343.22 <500 -- 1.4JBYA-31 2/12/2019 91.2 1.8 1.0 <0.5 3.2 <1 <1 <1 14.1J 363.32 17.30 0.00 346.02 <500 -- <1 SWE - Surveyed Well Elevation Page 28 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-31 5/29/2019 320 16.2 <0.5 <0.5 <1 <1 <1 5.2 77.5 363.32 12.90 0.00 350.42 <500 -- 3.8 BYA-31 8/6/2019 54J <0.5 <0.5 <0.5 1.8J <1 <1 <1 <10 363.32 16.60 0.00 346.72 <500 -- 4.6 BYA-31 2/13/2020 115 0.7J 1.9 1.7 10.6 <1 <1 <1 <10 363.32 16.71 0.00 346.61 <500 -- 6.6 BYA-31 5/20/2020 278 2.4 21.1 6.5 46.9 <1 <1 <1 <10 363.32 15.26 0.00 348.06 <500 -- <1BYA-31 8/19/2020 258 1.3 8.8 3.9 33.2 <1 <1 <1 <10 363.32 16.00 0.00 347.32 <500 -- <1BYA-31 11/16/2020 133 <0.5 1.8 1.5 10.8 <1 <1 <1 <10 363.32 16.31 0.00 347.01 <500 -- 4.6 BYA-31 2/18/2021 642 2.5 32.6 12.9 89.5 <1 <1 <1 <10 363.32 17.60 0.00 345.72 <500 -- 4.3 BYA-31 6/28/2021 215 0.8J 11.6 5.0 36.9 <1 <1 <1 <10 363.32 17.66 0.00 345.66 <500 -- 4.7 BYA-31 9/30/2021 476 1.1 18.4 7.5 53.8 <1 <1 <1 <10 363.32 18.28 0.00 345.04 <500 -- 3.9 BYA-31 11/17/2021 826 3.6 46.9 16.8 135 <1 <1 <1 <10 344.02 18.48 0.00 325.54 517J -- 2.7 BYA-32 7/19/2005 -- -- -- -- -- -- -- -- -- 364.52 13.41 0.00 351.11 -- -- --BYA-32 10/3/2005 <50 <1 2.7 <1 4.5 <2 <2 <2 <10 364.52 14.05 0.00 350.47 <500 -- <2BYA-32 1/9/2006 <50 <1 <1 <1 <2 <2 <2 <2 <10 364.52 14.05 0.00 350.47 <500 -- <2BYA-32 4/3/2006 <50 <1 <1 <1 <2 <2 <2 <2 <10 364.52 15.17 0.00 349.35 <500 -- <2BYA-32 7/10/2006 <50 <1 <1 <1 <2 <2 <2 <2 <10 364.52 15.37 0.00 349.15 <500 -- <2BYA-32 10/9/2006 <50 <1 <1 <1 <2 <2 <2 <2 <10 364.52 16.02 0.00 348.50 <500 -- <2BYA-32 1/8/2007 <50 <1 <1 <1 <2 <2 <2 <2 21.8 364.52 16.60 0.00 347.92 <500 -- 15.6 SWE - Surveyed Well Elevation Page 29 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-32 4/9/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 364.52 17.15 0.00 347.37 <500 -- <1BYA-32 7/9/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 364.52 16.54 0.00 347.98 <500 -- 1.1JBYA-32 10/8/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 364.52 17.12 0.00 347.40 <500 -- 1.3JBYA-32 1/28/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 364.52 16.25 0.00 348.27 <500 -- 1.2JBYA-32 4/22/2008 <50 <0.5 1.1 <0.5 1.9J <1 <1 <1 <10 364.52 15.72 0.00 348.80 <500 -- 1.2JBYA-32 7/7/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 364.52 16.06 0.00 348.46 560 -- <1BYA-32 10/3/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 364.52 15.28 0.00 349.24 <500 -- 2.6 BYA-32 1/21/2009 -- -- -- -- -- -- -- -- -- 364.52 15.86 0.00 348.66 -- -- --BYA-32 4/2/2009 -- -- -- -- -- -- -- -- -- 364.52 15.59 0.00 348.93 -- -- --BYA-32 7/20/2009 -- -- -- -- -- -- -- -- -- 364.52 16.58 0.00 347.94 -- -- --BYA-32 10/20/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 364.52 17.35 0.00 347.17 <500 -- 3.9 BYA-32 1/26/2010 -- NO SAMPLE / -- 364.52 17.00 0.00 347.52 -- -- ANNUAL

SAMPLE POINT -- --
BYA-32 4/7/2010 -- -- -- -- -- -- -- -- -- 364.52 16.12 0.00 348.40 -- -- --BYA-32 7/7/2010 -- -- -- -- -- -- -- -- -- 364.52 16.70 0.00 347.82 -- -- --BYA-32 10/18/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 364.52 17.40 0.00 347.12 <500 -- <1BYA-32 1/13/2011 -- -- -- -- -- -- -- -- -- 364.52 14.61 0.00 349.91 -- -- --BYA-32 4/11/2011 -- -- -- -- -- -- -- -- -- 364.52 14.45 0.00 350.07 -- -- -- SWE - Surveyed Well Elevation Page 30 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-32 7/12/2011 -- WELL -- REMOVED -- -- -- -- -- 364.52 NA 0.00 NA -- -- --BYA-33 7/19/2005 -- -- -- -- -- -- -- -- -- 362.84 11.73 0.00 351.11 -- -- --BYA-33 10/3/2005 <50 <1 3.2 <1 4.4 <2 <2 <2 <10 362.84 12.30 0.00 350.54 <500 -- <2BYA-33 1/9/2006 <50 <1 1.1 <1 2.1 <2 <2 <2 <10 362.84 13.31 0.00 349.53 <500 -- <2BYA-33 4/3/2006 <50 <1 <1 <1 <2 <2 <2 <2 <10 362.84 13.42 0.00 349.42 <500 -- <2BYA-33 7/10/2006 <50 <1 <1 <1 <2 <2 <2 <2 <10 362.84 13.63 0.00 349.21 <500 -- <2BYA-33 10/9/2006 <50 <1 <1 <1 <2 <2 <2 <2 <10 362.84 14.20 0.00 348.64 <500 -- 2.0 BYA-33 1/8/2007 <50 <1 <1 <1 <2 <2 <2 <2 <10 362.84 14.80 0.00 348.04 <500 -- 2.1 BYA-33 4/9/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 362.84 15.35 0.00 347.49 <500 -- 1.3JBYA-33 7/9/2007 <50 1.8 <0.5 <0.5 <1 <1 <1 <1 <10 362.84 15.50 0.00 347.34 <500 -- 1.3JBYA-33 10/8/2007 <50 <0.5 <0.5 <0.5 <1 ,1 <1 <1 <10 362.84 15.32 0.00 347.52 <500 -- 0.6JBYA-33 1/28/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 362.84 14.36 0.00 348.48 <500 -- <1BYA-33 4/22/2008 <50 <0.5 0.7J <0.5 0.96J <1 <1 <1 <10 362.84 13.97 0.00 348.87 <500 -- <1BYA-33 7/7/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 362.84 14.65 0.00 348.19 <500 -- <1BYA-33 10/3/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 362.84 14.51 0.00 348.33 <500 -- <1BYA-33 1/21/2009 -- -- -- -- -- -- -- -- -- 362.84 14.00 0.00 348.84 -- -- --BYA-33 4/2/2009 -- -- -- -- -- -- -- -- -- 362.84 13.88 0.00 348.96 -- -- -- SWE - Surveyed Well Elevation Page 31 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-33 7/20/2009 -- -- -- -- -- -- -- -- -- 362.84 14.83 0.00 348.01 -- -- --BYA-33 10/20/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 362.84 15.55 0.00 347.29 <500 -- <1BYA-33 1/26/2010 -- NO SAMPLE / -- 362.84 15.15 0.00 347.69 -- -- ANNUAL

SAMPLE POINT -- --
BYA-33 4/7/2010 -- -- -- -- -- -- -- -- -- 362.84 14.40 0.00 348.44 -- -- --BYA-33 7/7/2010 -- -- -- -- -- -- -- -- -- 362.84 14.90 0.00 347.94 -- -- --BYA-33 10/18/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 47.6 362.84 15.70 0.00 347.14 <500 -- 1.7JBYA-33 1/13/2011 -- -- -- -- -- -- -- -- -- 362.84 12.91 0.00 349.93 -- -- --BYA-33 4/11/2011 -- -- -- -- -- -- -- -- -- 362.84 12.50 0.00 350.34 -- -- --BYA-33 7/12/2011 -- WELL -- REMOVED -- -- -- -- -- 362.84 NA 0.00 NA -- -- --BYA-34 7/19/2005 <50 <1 1.6 <1 3.1 <2 <2 <2 <10 363.75 12.90 0.00 350.85 <500 -- <2BYA-34 10/3/2005 <50 <1 2.0 <1 4.7 <2 <2 <2 <10 363.75 13.48 0.00 350.27 <500 -- <2BYA-34 1/9/2006 <50 <1 <1 <1 <2 <2 <2 <2 <10 363.75 14.45 0.00 349.30 <500 -- <2BYA-34 4/3/2006 <50 <1 <1 <1 <2 <2 <2 <2 <10 363.75 14.58 0.00 349.17 <500 -- <2BYA-34 7/10/2006 133 52.0 <1 2.5 <2 <2 <2 <2 <10 363.75 14.79 0.00 348.96 <500 -- <2BYA-34 10/9/2006 <50 <1 <1 <1 <2 <2 <2 <2 <10 363.75 15.38 0.00 348.37 <500 -- <2BYA-34 1/8/2007 <50 <1 <1 <1 <2 <2 <2 <2 <10 363.75 15.98 0.00 347.77 <500 -- <2BYA-34 4/9/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.75 16.49 0.00 347.26 <500 -- <1 SWE - Surveyed Well Elevation Page 32 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
BYA-34 7/9/2007 <50 4.1 <0.5 <0.5 <1 <1 <1 <1 <10 363.75 16.71 0.00 347.04 <500 -- <1BYA-34 10/8/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.75 16.52 0.00 347.23 <500 -- <1BYA-34 1/28/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.75 15.60 0.00 348.15 <500 -- <1BYA-34 4/22/2008 <50 <0.5 1.0 <0.5 1.7J <1 <1 <1 <10 363.75 15.15 0.00 348.60 <500 -- <1BYA-34 7/7/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.75 15.44 0.00 348.31 <500 -- <1BYA-34 10/3/2008 <50 6.8 <0.5 <0.5 <1 <1 <1 <1 <10 363.75 15.68 0.00 348.07 <500 -- <1BYA-34 1/21/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.75 15.29 0.00 348.46 832 -- <1BYA-34 4/2/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.75 15.00 0.00 348.75 <500 -- <1BYA-34 7/20/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.75 15.96 0.00 347.79 <500 -- <1BYA-34 10/20/2009 99J <0.5 <0.5 <0.5 1.3J <1 <1 <1 <10 363.75 16.70 0.00 347.05 <500 -- <1BYA-34 1/26/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.75 16.35 0.00 347.40 <500 -- <1BYA-34 4/7/2010 <50 <0.5 <0.5 <0.5 <0.5 <1 <1 <1 59.4 363.75 15.50 0.00 348.25 <500 -- <1BYA-34 7/7/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 34.2 363.75 16.00 0.00 347.75 <500 -- <1BYA-34 10/18/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 13.4J 363.75 16.74 0.00 347.01 <500 -- <1BYA-34 1/13/2011 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 10.2J 363.75 14.00 0.00 349.75 <500 -- <1BYA-34 4/11/2011 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 363.75 13.55 0.00 350.20 <500 -- <1BYA-34 7/12/2011 -- WELL -- REMOVED -- -- -- -- -- 363.75 NA 0.00 NA -- -- -- SWE - Surveyed Well Elevation Page 33 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
IT-1 7/19/2005 209 6.3 <1 <1 <2 <2 <2 <2 2870 360.85 9 .99 0.00 350.86 <500 -- 5.1 IT-1 10/3/2005 150 6.9 <2 <2 <4 <4 <4 <4 5010 360.85 10.48 0.00 350.37 <500 -- 5.1 IT-1 1/9/2006 208 4.6 <1 <1 <2 <2 <2 <2 1870 360.85 11.11 0.00 349.74 2000 -- 2.7 IT-1 4/3/2006 3240 3050* 6.3 39.5 6.0 <2 <2 <2 2450 360.85 11.09 0.00 349.76 <500 -- 54.2IT-1 7/10/2006 909 333 3.8 <1 <2 <4 <4 <4 2890 360.85 11.50 0.00 349.35 <500 -- 31.6IT-1 10/9/2006 2060 757** 4.4 <2 <4 <4 <4 <4 2610 360.85 12.07 0.00 348.78 <500 -- 20.4IT-1 1/8/2007 1340 435** 7.0 <2 <4 <4 <4 <4 4080 360.85 12.37 0.00 348.48 <500 -- 29.5IT-1 4/9/2007 734 180 1.6J <1.25 <2.5 <2.5 <2.5 <2.5 7100 360.85 12.71 0.00 348.14 <500 -- 28.8IT-1 7/9/2007 2160 480 5.9 <2.5 9.5 <5 <5 <5 2400 360.85 12.87 0.00 347.98 <500 -- 15.8IT-1 10/8/2007 1550 416 4.2J <2.5 <5 <5 <5 <5 3600 360.85 13.57 0.00 347.28 516 -- 17.8IT-1 1/28/2008 <50 2.8 <0.5 <0.5 <1 <1 <1 <1 2020 360.85 11.77 0.00 349.08 878 -- <1IT-1 4/21/2008 1720 1150** 2.6 23.9 2.9 <1 <1 <1 2420 360.85 11.65 0.00 349.20 <500 -- 26.5IT-1 7/7/2008 58 2.1 <0.5 <0.5 <1 <1 <1 <1 1870 360.85 11.40 0.00 349.45 1340 -- <1IT-1 10/3/2008 <50 1.1 <0.5 <0.5 <1 <1 <1 <1 319 360.85 11.41 0.00 349.44 <500 -- <1IT-1 1/21/2009 <50 0.6J <0.5 <0.5 2.0 <1 <1 <1 386 360.85 10.90 0.00 349.95 829 -- <1IT-1 4/2/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 414 360.85 11.43 0.00 349.42 3000 -- 3.2 IT-1 7/20/2009 <50 0.8J <0.5 <0.5 <1 <1 <1 <1 718 360.85 12.18 0.00 348.67 <500 -- 1.1J SWE - Surveyed Well Elevation Page 34 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
IT-1 10/20/2009 70J 1.0 <0.5 <0.5 <1 <1 <1 <1 470 360.85 12.66 0.00 348.19 <500 -- <1IT-1 1/26/2010 <50 3.4 <0.5 <0.5 <1 <1 <1 <1 208 360.85 11.50 0.00 349.35 <500 -- 1.0JIT-1 4/7/2010 <50 1.1 <0.5 <0.5 <1 <1 <1 <1 709 360.85 12.05 0.00 348.80 561J -- <1IT-1 7/7/2010 57J 0.9J <0.5 <0.5 <1 <1 <1 <1 1250 360.85 12.31 0.00 348.54 935 -- <1IT-1 10/18/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 999 360.85 12.92 0.00 347.93 <500 -- <1IT-1 1/13/2011 57J 1.2 <0.5 <0.5 <1 <1 <1 <1 227 360.85 10.35 0.00 350.50 <500 -- <1IT-1 4/11/2011 61J <0.5 <0.5 <0.5 <1 <1 <1 <1 126 360.85 10.55 0.00 350.30 <500 -- <1IT-1 7/12/2011 286 83.0 0.6J <0.5 <1 <1 <1 <1 419 360.85 11.25 0.00 349.60 1010 -- 12.5IT-1 10/6/2011 52J 1.7 <0.5 <0.5 2.2 <1 <1 <1 268 360.85 11.70 0.00 349.15 <500 -- 3.1 IT-2 7/19/2005 218 1.0 1.2 <1 3.1 <2 <2 <2 3240 361.83 10.22 0.00 351.61 1110 -- 4.1 IT-2 10/3/2005 79.9 <2 <2 <2 <4 <4 <4 <4 2490 361.83 10.89 0.00 350.94 <500 -- <4IT-2 1/9/2006 72.6 <1 <1 <1 <2 <2 <2 <2 3900 361.83 11.87 0.00 349.96 <500 -- <2IT-2 4/3/2006 336 68.0 <1 <1 <2 <2 <2 <2 1070 361.83 11.65 0.00 350.18 <500 -- 21.6IT-2 7/10/2006 400 56.7 <1 <1 <2 <2 <2 <2 1440 361.83 12.10 0.00 349.73 <500 -- 27.8IT-2 10/9/2006 421 55.5 <1 <1 <2 <2 <2 <2 1810 361.83 13.12 0.00 348.71 <500 -- 44.8IT-2 1/8/2007 502 38.0 <1 <1 <2 <2 <2 <2 2570 361.83 13.57 0.00 348.26 <500 -- 91.8IT-2 4/9/2007 509 58.2 <1 <1 <2 <2 <2 <2 3230 361.83 14.48 0.00 347.35 <500 -- 98.2 SWE - Surveyed Well Elevation Page 35 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
IT-2 7/9/2007 3290 53.3 <1 <1 <2 <2 <2 <2 1240 361.83 14.44 0.00 347.39 <500 -- 64.1IT-2 10/8/2007 55.6 <0.5 <0.5 <0.5 <1 <1 <1 <1 1800 361.83 14.33 0.00 347.50 717 -- 0.8JIT-2 1/28/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 361.83 11.40 0.00 350.43 <500 -- <1IT-2 4/21/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 121 361.83 12.92 0.00 348.91 <500 -- <1IT-2 7/7/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 64.6 361.83 12.53 0.00 349.30 936 -- <1IT-2 10/3/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 162 361.83 12.88 0.00 348.95 1010 -- <1IT-2 1/21/2009 201 <0.5 <0.5 1.6 12.3 <1 <1 <1 114 361.83 11.54 0.00 350.29 1020 -- <1IT-2 4/2/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 40.5 361.83 12.28 0.00 349.55 595 -- <1IT-2 7/20/2009 -- -- -- -- -- -- -- -- -- 361.83 NA -- NA -- -- --IT-2 10/20/2009 73J <0.5 <0.5 <0.5 <1 <1 <1 <1 258 361.83 14.25 0.00 347.58 694 -- <1IT-2 1/26/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 18.8J 361.83 12.99 0.00 348.84 <500 -- <1IT-2 4/7/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 28.6 361.83 13.10 0.00 348.73 701J -- <1IT-2 7/7/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 103 361.83 13.58 0.00 348.25 <500 -- <1IT-2 10/18/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 24.9 361.83 13.62 0.00 348.21 <500 -- <1IT-2 1/13/2011 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 21.1 361.83 11.10 0.00 350.73 <500 -- <1IT-2 4/11/2011 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 361.83 10.90 0.00 350.93 <500 -- <1IT-2 7/12/2011 <50 <0.5 <0.5 <0.5 1.9J <1 <1 <1 <10 361.83 12.04 0.00 349.79 <500 -- <1 SWE - Surveyed Well Elevation Page 36 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
IT-2 10/6/2011 <50 1.6 <0.5 <0.5 1.6J <1 <1 <1 19.7J 361.83 12.45 0.00 349.38 <500 -- <1IT-4 7/19/2005 56300 337 8510 2180 14300 <40 <40 <40 692 360.08 9 .07 0.00 351.01 2030 -- <40IT-4 10/3/2005 48900 460 2380 2320 14700 <50 <50 <50 325 360.08 9 .59 0.00 350.49 3660 -- <50IT-4 1/9/2006 18100 <5 18.8 42.2 367 <10 <10 <10 2460 360.08 10.32 0.00 349.76 9010 -- <10IT-4 4/3/2006 53300 <25 208 790 6710 <50 <50 <50 <250 360.08 8 .03 0.00 352.05 16300 -- 509IT-4 7/10/2006 24000 25.0 314 1050 7730 <20 <20 <20 <100 360.08 10.65 0.04 349.46 2850 -- <20IT-4 10/9/2006 47300 68.1 743** 1400** 10100** <20 <20 <20 <100 360.08 10.95 0.00 349.13 4460 -- <20IT-4 1/8/2007 36800 134 996 1360 9270 <40 <40 <40 <200 360.08 11.52 0.03 348.58 <500 -- <40 IT-4 4/9/2007 31900 83.5 825 2010 12900 <50 <50 <50 <500 360.08 11.73 0.00 348.35 2010 -- <50IT-4 7/9/2007 332000 610 4020 4730 37100 <50 <50 <50 2720 360.08 11.68 0.00 348.40 1050 -- <50IT-4 10/8/2007 35200 271 1350 1780 12900 <100 <100 <100 <1000 360.08 11.63 0.00 348.45 1820 -- <100IT-4 1/28/2008 28900 77.5 526 805 9000 <50 <50 <50 <500 360.08 3 .22 0.00 356.86 <500 -- <50 IT-4 4/21/2008 22000 263 178 711 8740 <50 <50 <50 <500 360.08 10.86 0.00 349.22 <500 -- <50 IT-4 7/7/2008 34900 735 483 883 9460 <50 <50 <50 <500 360.08 10.54 0.00 349.54 <500 -- <50 IT-4 10/3/2008 334 3.5 7.5 7.2 81.2 <1 <1 <1 <10 360.08 10.95 0.00 349.13 <500 -- <1IT-4 1/21/2009 842 <0.5 <0.5 3.1 29.1 <1 <1 <1 <10 360.08 7 .76 0.00 352.32 3050 -- <1IT-4 4/2/2009 678 0.9J <0.5 11.7 100 <1 <1 <1 <10 360.08 10.58 0.00 349.50 12200 -- <1 SWE - Surveyed Well Elevation Page 37 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
IT-4 7/20/2009 830 1.2 3.2 8.3 100 <1 <1 <1 <10 360.08 11.35 0.00 348.73 555 -- <1IT-4 10/20/2009 9070 32.0 402** 361** 2280** <1 <1 <1 <10 360.08 11.91 0.00 348.17 3060 -- <1IT-4 1/26/2010 -- NO SAMPLE / -- 360.08 9 .30 0.00 350.78 -- -- ANNUAL

SAMPLE POINT -- --
IT-4 4/7/2010 400 <0.5 <0.5 1.9 17.2 <1 <1 <1 <10 360.08 11.10 0.00 348.98 578J -- <1IT-4 7/7/2010 3150 <0.5 6.5 15.1 47.2 <1 <1 <1 <10 360.08 11.46 0.00 348.62 3670 -- <1IT-4 10/18/2010 1340 3.0 2.2 25.3 99.5 <2 <2 <2 <20 360.08 12.12 0.04 347.99 <500 -- <2IT-4 1/13/2011 103000 6.5 7.5 261 782** <2.5 <2.5 <2.5 <25 360.08 9 .48 0.00 350.60 59700 -- <2.5IT-4 4/11/2011 146000 <50 55.0J 813 6140 <100 <100 <100 <1000 360.08 9 .82 0.00 350.26 54500 -- <100IT-4 7/12/2011 30700 86.6 51.2 475 4420 <20 <20 <20 <200 360.08 10.23 0.00 349.85 10200 -- <20 IT-4 10/6/2011 30200 14.0 8.0 192 1670** <5 <5 <5 <50 360.08 9 .72 0.00 350.36 16300 -- <5IT-5 7/19/2005 <50 <1 2.7 <1 <2 <2 <2 <2 113 362.44 11.07 0.00 351.37 <500 -- <2IT-5 10/3/2005 <50 <1 <1 <1 <2 <2 <2 <2 104 362.44 11.55 0.00 350.89 1210 -- <2IT-5 1/9/2006 <50 <1 <1 <1 <2 <2 <2 <2 34.0 362.44 12.57 0.00 349.87 1280 -- <2IT-5 4/3/2006 <50 <1 <1 <1 <2 <2 <2 <2 51.2 362.44 12.45 0.00 349.99 1340 -- 5.8 IT-5 7/10/2006 583 <1 <1 <1 <2 <2 <2 <2 81.5 362.44 12.95 0.00 349.49 5170 -- 3.9 IT-5 10/9/2006 74.6 <1 <1 <1 <2 <2 <2 <2 61.2 362.44 13.61 0.00 348.83 <500 -- 3.7 IT-5 1/8/2007 79.1 <1 <1 <1 <2 <2 <2 <2 40.6 362.44 14.32 0.00 348.12 2140 -- 3.6 SWE - Surveyed Well Elevation Page 38 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
IT-5 4/9/2007 <50 <0.5 0.7J <0.5 1.1J <1 <1 <1 54.5 362.44 14.68 0.00 347.76 3650 -- 3.3 IT-5 7/9/2007 <50 <0.5 1.2 <0.5 <1 <1 <1 <1 23.3 362.44 14.99 0.00 347.45 621 -- 4.0 IT-5 10/8/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 20.7 362.44 15.00 0.00 347.44 2450 -- <1IT-5 1/28/2008 6980 <2.5 <2.5 <2.5 <5 <5 <5 <5 <50 362.44 13.40 0.00 349.04 19800 -- <5IT-5 4/21/2008 231 <0.5 <0.5 <0.5 <1 <1 <1 <1 93.9 362.44 13.36 0.00 349.08 3880 -- 2.9 IT-5 7/7/2008 868 <0.5 <0.5 <0.5 <1 <1 <1 <1 66.1 362.44 13.68 0.00 348.76 8730 -- 2.7 IT-5 10/3/2008 9290 <0.5 1.0 <0.5 <1 <1 <1 <1 68.0 362.44 13.90 0.00 348.54 115000 -- 1.4JIT-5 1/21/2009 69 <0.5 <0.5 0.7J 5.9 <1 <1 <1 28.2 362.44 13.14 0.00 349.30 4370 -- <1IT-5 4/2/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 23.7 362.44 13.16 0.00 349.28 871 -- <1IT-5 7/20/2009 -- -- -- -- -- -- -- -- -- 362.44 14.15 0.00 348.29 -- -- --IT-5 10/20/2009 -- -- -- -- -- -- -- -- -- 362.44 NA -- NA -- -- --IT-5 1/26/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 11.8J 362.44 14.80 0.00 347.64 1330 -- <1IT-5 4/7/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 20.4 362.44 13.80 0.00 348.64 2180 -- <1IT-5 7/7/2010 509 <0.5 <0.5 <0.5 <1 <1 <1 <1 10.4J 362.44 14.30 0.00 348.14 3690 -- <1IT-5 10/18/2010 2430 <1 <1 <1 <2 <1 <1 <1 39.3J 362.44 15.20 0.05 347.28 47900 -- <2IT-5 1/13/2011 205 <0.5 <0.5 <0.5 <1 .<1 <1 <1 48.7 362.44 12.26 0.00 350.18 10700 -- <1IT-5 4/11/2011 117 <0.5 <0.5 <0.5 <1 <1 <1 <1 47.7 362.44 12.03 0.00 350.41 <500 -- <1 SWE - Surveyed Well Elevation Page 39 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
IT-5 7/12/2011 1040 <1 <1 <1 3.6J <2 <2 <2 53.0 362.44 12.78 0.00 349.66 31900 -- <2IT-5 10/6/2011 108 <0.5 1.6 0.9J <1 <1 <1 <1 223 362.44 13.60 0.00 348.84 3750 -- <1IT-6 7/19/2005 426 23.7 <2 <2 6.8 <4 <4 <4 1660 361.98 10.12 0.00 351.86 2850 -- 243IT-6 10/3/2005 64.0 1.0 <1 <1 3.3 <2 <2 <2 422 361.98 10.68 0.00 351.30 15400 -- 32.0IT-6 1/9/2006 573 21.3 3.0 2.2 5.5 <2 <2 <2 384 361.98 11.60 0.00 350.38 4000 -- 94.2IT-6 4/3/2006 13600 15.4 1.8 3.8 5.7 <2 <2 <2 351 361.98 11.60 0.00 350.38 43200 -- 70.6IT-6 7/10/2006 1860 14.9 <1 1.0 2.0 <2 <2 <2 510 361.98 11.98 0.00 350.00 4780 -- 81.7IT-6 10/9/2006 2140 10.9 1.5 2.5 2.1 <2 <2 <2 521 361.98 12.83 0.00 349.15 55200 -- 73.8IT-6 1/8/2007 2880 3.3 1.3 2.4 <2 <2 <2 <2 783 361.98 13.45 0.00 348.53 36800 -- 62.6IT-6 4/9/2007 1530 1.7J 0.8J 1.8 1.0J <1 <1 2.0 855 361.98 14.01 0.00 347.97 13500 -- 75.6IT-6 7/9/2007 1070 1.0 0.6J 1.1 0.4J <1 <1 1.2J 324 361.98 14.18 0.00 347.80 18100 -- 59.5IT-6 10/8/2007 4540 1.2 <0.5 <0.5 <1 <1 <1 <1 669 361.98 14.11 0.00 347.87 137000 -- 55.1IT-6 1/28/2008 482 1.1 <0.5 1.1 <1 <1 <1 2.0 405 361.98 11.33 0.00 350.65 2810 -- 74.4IT-6 4/21/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 143 361.98 11.87 0.00 350.11 3370 -- 4.5 IT-6 7/7/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 197 361.98 12.38 0.00 349.60 3150 -- 2.6 IT-6 10/3/2008 572 <0.5 <0.5 <0.5 <1 <1 <1 <1 267 361.98 13.13 0.00 348.85 42500 -- 33.0IT-6 1/21/2009 690 <0.5 <0.5 2.2 16.6 <1 <1 <1 <10 361.98 10.79 0.00 351.19 11600 -- 1.1J SWE - Surveyed Well Elevation Page 40 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
IT-6 4/2/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 361.98 11.77 0.00 350.21 2580 -- 1.3JIT-6 7/20/2009 144 <0.5 <0.5 <0.5 <1 <1 <1 <1 1520 361.98 12.55 0.00 349.43 <500 -- 3.5 IT-6 10/20/2009 514 <0.5 0.8J 1.1J 6.7 <1 <1 <1 24.7 361.98 14.20 0.00 347.78 141000 -- 6.8 IT-6 1/26/2010 93J <0.5 <0.5 <0.5 <1 <1 <1 <1 55.6 361.98 12.20 0.00 349.78 560J -- 5.5 IT-6 4/7/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 10.6J 361.98 12.85 0.00 349.13 1250 -- <1IT-6 7/7/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 39.3 361.98 13.50 0.00 348.48 7960 -- <1IT-6 10/18/2010 1730 <0.5 <0.5 <0.5 <1 <1 <1 <1 306 361.98 13.90 0.00 348.08 9110 -- 8.5 IT-6 1/13/2011 51J <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 361.98 10.58 0.00 351.40 <500 -- <1IT-6 4/11/2011 252 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 361.98 10.90 0.00 351.08 <500 -- <1IT-6 7/12/2011 91J <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 361.98 11.80 0.00 350.18 <500 -- <1IT-6 10/6/2011 72J <0.5 <0.5 <0.5 2.3 <1 <1 <1 32.3 361.98 11.65 0.00 350.33 560J -- <1IT-7 7/19/2005 -- -- -- -- -- -- -- -- -- 362.21 10.60 0.00 351.61 -- -- --IT-7 10/3/2005 <50 <1 2.1 <1 6.0 <2 <2 <2 <10 362.21 11.10 0.00 351.11 <500 -- 3.1 IT-7 1/9/2006 <50 <1 <1 <1 <2 <2 <2 <2 <10 362.21 12.00 0.00 350.21 <500 -- <2IT-7 4/3/2006 65.7 <1 <1 <1 <2 <2 <2 <2 <10 362.21 12.20 0.00 350.01 <500 -- <2IT-7 7/10/2006 61.5 <1 <1 <1 <2 <2 <2 <2 <10 362.21 12.29 0.00 349.92 <500 -- <2IT-7 10/9/2006 67.9 <1 <1 <1 <2 <2 <2 <2 43.1 362.21 13.03 0.00 349.18 <500 -- <2 SWE - Surveyed Well Elevation Page 41 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
IT-7 1/8/2007 77.4 <1 <1 <1 <2 <2 <2 <2 43.2 362.21 13.56 0.00 348.65 <500 -- <2IT-7 4/9/2007 92.4 <0.5 <0.5 <0.5 <1 <1 <1 <1 72.9 362.21 13.95 0.00 348.26 <500 -- <1IT-7 7/9/2007 93.3 <0.5 <0.5 <0.5 <1 <1 <1 <1 118 362.21 14.10 0.00 348.11 <500 -- 2.4 IT-7 10/8/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 50.1 362.21 14.12 0.00 348.09 568 -- <1IT-7 1/28/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 362.21 17.90 0.00 344.31 <500 -- <1IT-7 4/21/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 362.21 12.70 0.00 349.51 <500 -- <1IT-7 7/7/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 362.21 15.25 0.00 346.96 <500 -- <1IT-7 10/3/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 362.21 13.50 0.00 348.71 <500 -- <1IT-7 1/21/2009 -- -- -- -- -- -- -- -- -- 362.21 12.06 0.00 350.15 -- -- --IT-7 4/2/2009 -- -- -- -- -- -- -- -- -- 362.21 12.47 0.00 349.74 -- -- --IT-7 7/20/2009 -- -- -- -- -- -- -- -- -- 362.21 13.50 0.00 348.71 -- -- --IT-7 10/20/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 362.21 14.10 0.00 348.11 <500 -- <1IT-7 1/26/2010 -- NO SAMPLE / -- 362.21 NA -- NA -- -- ANNUAL

SAMPLE POINT -- --
IT-7 4/7/2010 -- -- -- -- -- -- -- -- -- 362.21 13.25 0.00 348.96 -- -- --IT-7 7/7/2010 -- -- -- -- -- -- -- -- -- 362.21 13.61 0.00 348.60 -- -- --IT-7 10/18/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 362.21 14.29 0.00 347.92 <500 -- <1IT-7 1/13/2011 -- -- -- -- -- -- -- -- -- 362.21 11.95 0.00 350.26 -- -- -- SWE - Surveyed Well Elevation Page 42 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
IT-7 4/11/2011 -- -- -- -- -- -- -- -- -- 362.21 24.80 0.00 337.41 -- -- --IT-7 7/12/2011 -- -- -- -- -- -- -- -- -- 362.21 12.00 0.00 350.21 -- -- --IT-7 10/6/2011 200 <0.5 <0.5 <0.5 3.6 <1 <1 <1 <10 362.21 12.46 0.00 349.75 7120 -- <1IT-8 7/19/2005 208 3.6 5.9 1.5 11.6 <2 <2 <2 70.7 360.06 9 .38 0.00 350.68 <500 -- <2IT-8 10/3/2005 123 2.9 <1 <1 <2 <2 <2 <2 75.7 360.06 10.35 0.00 349.71 <500 -- <2IT-8 1/9/2006 <50 <1 <1 <1 <2 <2 <2 <2 26.2 360.06 10.99 0.00 349.07 <500 -- <2IT-8 4/3/2006 3830 335 13.2 13.1 28.0 <4 <4 <4 84.3 360.06 11.06 0.00 349.00 <500 -- <4IT-9 7/19/2005 274 13.3 48.7 11.0 83.7 <2 <2 <2 25.0 360.51 9 .98 0.00 350.53 <500 -- 8.4 IT-9 10/3/2005 89.8 2.0 1.2 <1 3.6 <2 <2 <2 <10 360.51 10.49 0.00 350.02 <500 -- 183IT-9 1/9/2006 <50 2.6 <1 <1 <2 <2 <2 <2 <10 360.51 11.10 0.00 349.41 <500 -- <2IT-9 4/3/2006 241 45.1 <1 <1 <2 <2 <2 <2 <10 360.51 11.20 0.00 349.31 <500 -- 92.2IT-10 7/19/2005 -- -- -- -- -- -- -- -- -- 360.27 9 .38 0.00 350.89 -- -- --IT-10 10/3/2005 <50 <1 <1 <1 <2 <2 <2 <2 <10 360.27 10.20 0.00 350.07 <500 -- <2IT-10 1/9/2006 <50 <1 <1 <1 <2 <2 <2 <2 <10 360.27 11.10 0.00 349.17 <500 -- <2IT-10 4/3/2006 <50 <1 <1 <1 <2 <2 <2 <2 15.5 360.27 11.18 0.00 349.09 <500 -- 2.0 IT-11 7/19/2005 2570 1.2 3.5 <1 8.1 <2 <2 <2 15.8 360.33 10.48 0.00 349.85 18200 -- <2IT-11 10/3/2005 <50 1.0 <1 <1 <2 <2 <2 <2 14.5 360.33 11.10 0.00 349.23 <500 -- <2 SWE - Surveyed Well Elevation Page 43 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
IT-11 1/9/2006 599 1.8 <1 <1 <2 <2 <2 <2 52.0 360.33 11.83 0.00 348.50 9230 -- <2IT-11 4/3/2006 786 109 2.5 1.0 <2 <2 <2 <2 47.5 360.33 11.96 0.00 348.37 <500 -- 2.2 IT-12 7/19/2005 -- -- -- -- -- -- -- -- -- 359.73 7 .20 0.00 352.53 -- -- --IT-12 10/3/2005 <50 <1 1.4 <1 2.0 <2 <2 <2 <10 359.73 8 .20 0.00 351.53 <500 -- <2IT-12 1/9/2006 <50 <1 4.3 1.4 12.0 <2 <2 <2 <10 359.73 10.37 0.00 349.36 <500 -- <2IT-12 4/3/2006 <50 <1 <1 <1 <2 <2 <2 <2 <10 359.73 10.04 0.00 349.69 <500 -- <2IT-13 7/19/2005 464 1.0 10.7 3.4 21.5 <2 <2 <2 13.2 359.64 10.17 0.00 349.47 <500 -- 9.9 IT-13 10/3/2005 <50 <1 <1 <1 2.4 <2 <2 <2 17.2 359.64 10.52 0.00 349.12 <500 -- 9.7 IT-13 1/9/2006 <50 <1 <1 <1 <2 <2 <2 <2 <10 359.64 11.18 0.00 348.46 <500 -- <2IT-13 4/3/2006 <50 <1 <1 <1 <2 <2 <2 <2 19.6 359.64 11.15 0.00 348.49 <500 -- 32.1KMW-14 7/19/2005 <50 <1 4.5 1.1 8.7 <2 <2 <2 56.4 361.69 10.20 0.00 351.49 <500 -- 25.9KMW-14 10/3/2005 116 <1 1.0 <1 2.1 <2 <2 <2 384 361.69 10.70 0.00 350.99 <500 -- 77.6KMW-14 1/9/2006 <50 <1 <1 <1 3.3 <2 <2 <2 83.4 361.69 11.55 0.00 350.14 <500 -- 2.1 KMW-14 4/3/2006 116 <1 <1 <1 <2 <2 <2 <2 91.2 361.69 11.55 0.00 350.14 <500 -- 54.4KMW-14 7/10/2006 220 <1 <1 <1 <2 <2 <2 <2 324 361.69 11.88 0.00 349.81 <500 -- 113KMW-14 10/9/2006 275 1.0 <1 <1 <2 <2 <2 <2 480 361.69 12.12 0.00 349.57 <500 -- 196KMW-14 1/8/2007 419 <1 <1 <1 <2 <2 <2 <2 723 361.69 12.82 0.00 348.87 <500 -- 300 SWE - Surveyed Well Elevation Page 44 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
KMW-14 4/9/2007 117 <0.5 <0.5 <0.5 <1 <1 <1 <1 211 361.69 13.02 0.00 348.67 <500 -- 80.3KMW-14 7/9/2007 54.9 <0.5 <0.5 <0.5 <1 <1 <1 <1 50.2 361.69 13.13 0.00 348.56 <500 -- 25.0KMW-14 10/8/2007 52.1 <0.5 <0.5 <0.5 <1 <1 <1 <1 57.3 361.69 13.15 0.00 348.54 <500 -- 22.7KMW-14 1/28/2008 <50 <0.5 0.8J <0.5 2.0 <1 <1 <1 <10 361.69 12.30 0.00 349.39 <500 -- <1KMW-14 4/22/2008 50 <0.5 0.5J <0.5 0.9J <1 <1 <1 465 361.69 12.06 0.00 349.63 <500 -- 41.1KMW-14 7/7/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 55.3 361.69 12.00 0.00 349.69 <500 -- 3.1 KMW-14 10/3/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 361.69 12.35 0.00 349.34 <500 -- <1KMW-14 1/21/2009 <50 <0.5 <0.5 <0.5 1.5J <1 <1 <1 315 361.69 11.63 0.00 350.06 <500 -- 16.9KMW-14 4/2/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 27.8 361.69 11.91 0.00 349.78 <500 -- 1.1JKMW-14 7/20/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 221 361.69 12.76 0.00 348.93 <500 -- 7.4 KMW-14 10/20/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 329 361.69 13.26 0.00 348.43 <500 -- 21.7KMW-14 1/26/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 361.69 12.50 0.00 349.19 <500 -- <1KMW-14 4/7/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 361.69 12.60 0.00 349.09 <500 -- <1KMW-14 7/7/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 19.1J 361.69 13.06 0.00 348.63 <500 -- <1KMW-14 10/18/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 22.5 361.69 13.50 0.00 348.19 <500 -- <1KMW-14 1/13/2011 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 21.5 361.69 11.14 0.00 350.55 <500 -- 2.6 KMW-14 4/11/2011 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 231 361.69 10.97 0.00 350.72 <500 -- 11.2 SWE - Surveyed Well Elevation Page 45 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
KMW-14 7/12/2011 -- WELL -- REMOVED -- -- -- -- -- 361.69 NA 0.00 NA -- -- --KMW-16 7/19/2005 96.5 1.0 11.3 3.2 24.7 <2 <2 <2 <10 360.50 11.58 0.00 348.92 <500 -- <2KMW-16 10/3/2005 <50 <1 <1 <1 <2 <2 <2 <2 <10 360.50 12.00 0.00 348.50 <500 -- <2KMW-16 1/9/2006 <50 <1 <1 <1 2.8 <2 <2 <2 <10 360.50 12.62 0.00 347.88 1120 -- <2KMW-16 4/3/2006 <50 <1 <1 <1 <2 <2 <2 <2 <10 360.50 12.68 0.00 347.82 <500 -- <2MW-18 7/19/2005 106 1.5 9.2 3.0 18.0 <2 <2 <2 <10 355.26 7 .57 0.00 347.69 <500 -- 17.7MW-18 10/3/2005 94.3 <1 1.4 <1 2.6 <2 <2 <2 <10 355.26 7 .89 0.00 347.37 <500 -- 56.1MW-18 1/9/2006 209 <1 9.1 5.5 25.8 <2 <2 <2 <10 355.26 8 .36 0.00 346.90 <500 -- 80.2MW-18 4/3/2006 583 <1 <1 29.6 8.4 <2 <2 <2 <10 355.26 8 .48 0.00 346.78 <500 -- 163MW-18 7/10/2006 251 <1 <1 <1 <2 <2 <2 <2 <10 355.26 8 .50 0.00 346.76 <500 -- 217MW-18 10/9/2006 -- -- -- -- -- -- -- -- -- 355.26 NA -- NA -- -- --MW-18 1/8/2007 350 <1 <1 <1 <2 <2 <2 <2 <10 355.26 9 .08 0.00 346.18 <500 -- 335MW-18 4/9/2007 398 <1 <1 <1 <2 <2 <2 <2 <10 355.26 9 .40 0.00 345.86 <500 -- 349MW-18 7/9/2007 349 <1 <1 <1 <2 <2 <2 <2 <20 355.26 9 .42 0.00 345.84 <500 -- 304MW-18 10/8/2007 307 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 355.26 9 .22 0.00 346.04 <500 -- 307MW-18 1/28/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 355.26 8 .19 0.00 347.07 <500 -- 43.9MW-18 4/22/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 355.26 8 .60 0.00 346.66 <500 -- 34.2 SWE - Surveyed Well Elevation Page 46 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
MW-18 7/7/2008 63 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 355.26 8 .49 0.00 346.77 <500 -- 63.1MW-18 10/3/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 355.26 8 .79 0.00 346.47 <500 -- 23.9MW-18 1/21/2009 12300 19.3 15.3 119 1340** <1 <1 <1 <10 355.26 8 .80 0.00 346.46 4390 -- <1MW-18 4/2/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 355.26 8 .44 0.00 346.82 <500 -- 64.3MW-18 7/20/2009 57J <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 355.26 8 .96 0.00 346.30 <500 -- 66.1MW-18 10/20/2009 57J <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 355.26 9 .35 0.00 345.91 <500 -- 64.2MW-18 1/26/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 33.8 355.26 8 .75 0.00 346.51 <500 -- 49.0MW-18 4/7/2010 168 <0.5 <0.5 <0.5 <1 <1 <1 <1 132 355.26 8 .71 0.00 346.55 <500 -- 193MW-18 7/7/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 19.7J 355.26 9 .00 0.00 346.26 <500 -- 43.6MW-18 10/18/2010 176 <0.5 <0.5 1.5 <1 <1 <1 <1 19.3J 355.26 9 .40 0.00 345.86 <500 -- 67.3MW-18 1/13/2011 52J <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 355.26 7 .90 0.00 347.36 <500 -- 42.5MW-18 4/11/2011 69J <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 355.26 7 .80 0.00 347.46 <500 -- 69.4MW-18 7/12/2011 87J <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 355.26 8 .22 0.00 347.04 <500 -- 129MW-18 10/6/2011 152 <0.5 <0.5 <0.5 2.8 <1 <1 <1 <10 355.26 8 .60 0.00 346.66 <500 -- 197MW-18 1/23/2012 472 9.9 24.8 20.7 81.1 <1 <1 <1 <10 355.26 9 .21 0.00 346.05 <500 -- 756**MW-18 4/10/2012 84J <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 355.26 9 .22 0.00 346.04 <500 -- 158MW-18 7/2/2012 550 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 355.26 9 .38 0.00 345.88 <500 -- 345 SWE - Surveyed Well Elevation Page 47 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
MW-18 10/1/2012 140 <0.5 7.7 1.7 10.9 <1 <1 <1 <10 355.26 9 .73 0.00 345.53 5270 -- 23.6MW-18 1/21/2013 392 14.2 31.5 11.5 49.6 <1 <1 <1 <10 355.26 9 .62 0.00 345.64 <500 -- 350MW-18 4/9/2013 144 <0.5 <0.5 <0.5 2.0 <1 <1 <1 319 355.26 9 .59 0.00 345.67 <500 -- 303MW-18 7/11/2013 498 <0.5 2.0 1.2 5.9 <1 <1 <1 <10 355.26 9 .80 0.00 345.46 <500 -- 125MW-18 10/18/2013 62J <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 355.26 10.03 0.00 345.23 <500 -- 127MW-18 1/17/2014 79J <0.5 0.6J <0.5 5.6 <1 <1 <1 <10 355.26 10.28 0.00 344.98 <500 -- 45.8MW-18 6/12/2014 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 355.26 10.26 0.00 345.00 <500 -- 79.7MW-18 8/27/2014 102 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 355.26 10.39 0.00 344.87 <500 -- 94.0MW-18 11/11/2014 <50 <0.5 0.5J <0.5 3.2 <1 <1 <1 <10 355.26 10.40 0.00 344.86 <500 -- 33.2MW-18 3/2/2015 228 2.6 24.3 5.0 41.0 <1 <1 <1 <10 355.26 10.13 0.00 345.13 <500 -- 88.8MW-18 5/19/2015 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 355.26 10.25 0.00 345.01 <500 -- 51.5MW-18 8/18/2015 243 1.2 12.0 4.6 37.0 <1 <1 <1 <10 355.26 10.59 0.00 344.67 <500 -- 58.0MW-18 11/24/2015 50J <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 355.26 10.93 0.00 344.33 <500 -- 63.4MW-18 2/16/2016 197 1.0 5.5 1.7 22.1 <1 <1 <1 <10 355.26 10.80 0.00 344.46 <500 -- 25.4MW-18 5/31/2016 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 30.8 355.26 11.07 0.00 344.19 <500 -- 65.5MW-18 8/15/2016 102 <0.5 3.7 <0.5 11.2 <1 <1 <1 <10 355.26 11.32 0.00 343.94 <500 -- 37.8MW-18 11/30/2016 2100 4.2 59 29 204 <1 <1 <1 <10 355.26 11.65 0.00 343.61 600 -- 17 SWE - Surveyed Well Elevation Page 48 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
MW-18 2/14/2017 910 <0.5 0.90 1.6 21.5 <1 <1 <1 <10 355.26 10.04 0.00 345.22 910 -- 17MW-18 5/31/2017 <50 <0.5 0.8 <0.5 2.11 <1 <1 <1 <10 355.26 10.00 0.00 345.26 <400 -- 16MW-18 8/24/2017 70 <0.5 <0.5 <0.5 0.63 <1 <1 <1 <10 355.26 10.56 0.00 344.70 <400 -- 29MW-18 11/29/2017 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 17.1J 355.26 11.10 0.00 344.16 <500 -- 14.2MW-18 2/13/2018 243 <0.5 <0.5 <0.5 <1 <1 <1 <1 13.8J 355.26 11.40 0.00 343.86 <500 -- 145MW-18 5/30/2018 87J <0.5 <0.5 <0.5 <1 <1 <1 <1 16.6J 355.26 11.40 0.00 343.86 <500 -- 57.7MW-18 8/23/2018 173 <0.5 <0.5 <0.5 1.2J <1 <1 <1 19.6 355.26 11.67 0.00 343.59 <500 -- 92.1MW-18 11/28/2018 85J <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 355.26 11.95 0.00 343.31 <500 -- 20.1MW-18 2/12/2019 217 <0.5 5.5 2.7 20.2 <1 <1 <1 <10 355.26 9 .78 0.00 345.48 <500 -- 25.7MW-18 5/29/2019 105 <0.5 1.8 1.2 8.4 <1 <1 <1 <10 355.26 9 .37 0.00 345.89 <500 -- 14.6MW-18 8/6/2019 222 <0.5 1.3 2.1 17.8 <1 <1 <1 <10 355.26 9 .80 0.00 345.46 <500 -- 45.3MW-18 2/13/2020 61J <0.5 0.7J 0.6J 4.5 <1 <1 <1 <10 355.26 9 .66 0.00 345.60 <500 -- 11.9MW-18 5/20/2020 593 5.3 50.1 14.0 106 <1 <1 <1 <10 355.26 8 .80 0.00 346.46 <500 -- 12.2MW-18 8/19/2020 865 4.7 49.3 20.6 153 <1 <1 <1 <10 355.26 9 .60 0.00 345.66 <500 -- 27MW-18 11/16/2020 245 <0.5 5.7 4.7 40.9 <1 <1 <1 <10 355.26 10.00 0.00 345.26 <500 -- 35.2MW-18 2/18/2021 262 1.2 14.3 5.3 31.1 <1 <1 <1 <10 355.26 10.20 0.00 345.06 <500 -- 4.6 MW-18 6/28/2021 366 1.8 27.2 10.5 78.6 <1 <1 <1 <10 355.26 10.33 0.00 344.93 <500 -- 17.7 SWE - Surveyed Well Elevation Page 49 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
MW-18 9/30/2021 1440 8.6 143 46.7 331 <1 <1 <1 <10 355.26 10.73 0.00 344.53 <500 -- 36.1MW-18 11/17/2021 1670 14.1 170 53.0 388 <1 <1 <1 <10 355.26 10.82 0.00 344.44 5570 -- 32.3MW-19 7/19/2005 113 <1 10.1 2.1 18.7 <2 <2 <2 34.3 357.58 9 .05 0.00 348.53 <500 -- 15.9MW-19 10/3/2005 61.1 <1 1.2 <1 2.9 <2 <2 <2 73.7 357.58 9 .46 0.00 348.12 <500 -- 19.8MW-19 1/9/2006 <50 <1 <1 <1 <2 <2 <2 <2 30.2 357.58 10.05 0.00 347.53 <500 -- 2.0 MW-19 4/3/2006 137 <1 <1 <1 <2 <2 <2 <2 79.2 357.58 10.05 0.00 347.53 <500 -- 14.1MW-19 7/10/2006 181 <1 <1 <1 <2 <2 <2 <2 68.4 357.58 10.20 0.00 347.38 <500 -- 9.4 MW-19 10/9/2006 160 <1 <1 <1 <2 <2 <2 <2 89.1 357.58 10.51 0.00 347.07 <500 -- 8.4 MW-19 1/8/2007 70.8 <1 <1 <1 <2 <2 <2 <2 93.4 357.58 10.95 0.00 346.63 <500 -- 12.7MW-19 7/9/2007 91.3 <0.5 <0.5 <0.5 <1 <1 <1 <1 47.0 357.58 11.26 0.00 346.32 <500 -- 34.1MW-19 10/8/2007 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 45.3 357.58 11.13 0.00 346.45 <500 -- 10.7MW-19 1/28/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 55.8 357.58 10.62 0.00 346.96 <500 -- <1MW-19 4/22/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 37.9 357.58 8 .60 0.00 348.98 <500 -- 1.6JMW-19 7/7/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 88.4 357.58 10.20 0.00 347.38 <500 -- 11.2MW-19 10/3/2008 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 48.2 357.58 10.60 0.00 346.98 <500 -- <1MW-19 1/21/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 357.58 10.32 0.00 347.26 <500 -- 53.0MW-19 4/2/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 70.9 357.58 10.18 0.00 347.40 <500 -- 7.7 SWE - Surveyed Well Elevation Page 50 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
MW-19 7/20/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 71.4 357.58 10.75 0.00 346.83 <500 -- 6.0 MW-19 10/20/2009 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 96.4 357.58 11.37 0.00 346.21 <500 -- 1.2JMW-19 1/26/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 90.5 357.58 10.74 0.00 346.84 <500 -- 2.3 MW-19 4/7/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 39.2 357.58 10.46 0.00 347.12 <500 -- 1.3JMW-19 7/7/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 46.1 357.58 9 .11 0.00 348.47 <500 -- 1.2JMW-19 10/18/2010 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 100 357.58 11.35 0.00 346.23 <500 -- 11.6MW-19 1/13/2011 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 74.8 357.58 7 .90 0.00 349.68 <500 -- 6.8 MW-19 4/11/2011 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 36.9 357.58 9 .55 0.00 348.03 <500 -- 2.5 MW-19 7/12/2011 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 32.9 357.58 9 .93 0.00 347.65 <500 -- 3.6 MW-19 10/6/2011 <50 <0.5 <0.5 <0.5 1.8J <1 <1 <1 139 357.58 10.40 0.00 347.18 <500 -- 9.0 MW-19 1/23/2012 379 7.5 19.5 17.8 71.6 <1 <1 <1 251 357.58 11.03 0.00 346.55 <500 -- 26.3MW-19 4/10/2012 106 <0.5 <0.5 <0.5 <1 <1 <1 <1 117 357.58 11.06 0.00 346.52 <500 -- 9.0 MW-19 7/2/2012 50J <0.5 <0.5 <0.5 <1 <1 <1 <1 81.0 357.58 11.22 0.00 346.36 <500 -- 18.9MW-19 10/1/2012 82J <0.5 16.2 3.9 26.4 <1 <1 <1 48.6 357.58 11.25 0.00 346.33 <500 -- <1MW-19 1/21/2013 478 37.7 59.5 18.3 77.0 <1 <1 <1 100 357.58 11.31 0.00 346.27 <500 -- 9.8 MW-19 4/9/2013 95J <0.5 0.7J <0.5 2.7 <1 <1 <1 140 357.58 11.45 0.00 346.13 <500 -- 23.3MW-19 7/11/2013 <50 <0.5 2.1 0.6J 6.3 <1 <1 <1 90.1 357.58 11.72 0.00 345.86 <500 -- 30.4 SWE - Surveyed Well Elevation Page 51 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
MW-19 10/18/2013 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 134 357.58 12.05 0.00 345.53 <500 -- 13.2MW-19 1/17/2014 <50 <0.5 <0.5 <0.5 3.3 <1 <1 <1 66.3 357.58 12.11 0.00 345.47 <500 -- 2.0 MW-19 6/12/2014 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 119 357.58 12.25 0.00 345.33 <500 -- 8.1 MW-19 8/27/2014 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 210 357.58 12.42 0.00 345.16 <500 -- 13.3MW-19 11/11/2014 <50 <0.5 <0.5 <0.5 2.0 <1 <1 <1 93.7 357.58 12.42 0.00 345.16 <500 -- 6.3 MW-19 3/2/2015 122 1.8 15.1 3.4 23.0 <1 <1 <1 48.2 357.58 12.13 0.00 345.45 <500 -- 18.3MW-19 5/19/2015 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 51.6 357.58 12.21 0.00 345.37 <500 -- 7.3 MW-19 8/18/2015 227 1.8 17.4 5.5 39.5 <1 <1 <1 311 357.58 12.65 0.00 344.93 <500 -- 34.2MW-19 11/24/2015 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 188 357.58 13.05 0.00 344.53 <500 -- 9.8 MW-19 2/16/2016 193 0.5J 5.1 1.2 13.7 <1 <1 <1 187 357.58 12.98 0.00 344.60 <500 -- 68.5MW-19 5/31/2016 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 80.3 357.58 13.26 0.00 344.32 <500 -- 15.6MW-19 8/15/2016 <50 <0.5 0.6J <0.5 <1 <1 <1 <1 136 357.58 13.55 0.00 344.03 <500 -- 10.5MW-19 11/30/2016 560 1.0 16 9.0 61 <1 <1 <1 57 357.58 13.91 0.00 343.67 <400 -- 7.4 MW-19 2/14/2017 540 <0.5 0.87 0.92 13.4 <1 <1 <1 110 357.58 12.26 0.00 345.32 <400 -- 27MW-19 5/31/2017 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 64 357.58 11.98 0.00 345.60 <400 -- 11MW-19 8/24/2017 84 <0.5 0.65 <0.5 1.98 <1 <1 <1 160 257.58 12.56 0.00 245.02 <400 -- 58MW-19 11/29/2017 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 70.2 357.58 13.22 0 344.36 <500 -- 16.5 SWE - Surveyed Well Elevation Page 52 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
MW-19 2/13/2018 384 <0.5 <0.5 <0.5 <1 <1 <1 <1 127 357.58 13.53 0.00 344.05 <500 -- 327MW-19 5/30/2018 59J <0.5 <0.5 <0.5 <1 <1 <1 <1 97.1 357.58 13.50 0.00 344.08 <500 -- 42.5MW-19 8/23/2018 355 <0.5 <0.5 <0.5 <1 <1 <1 <1 120 357.58 13.91 0.00 343.67 <500 -- 393MW-19 11/28/2018 59J <0.5 <0.5 <0.5 <1 <1 <1 <1 54.0 357.58 14.23 0.00 343.35 <500 -- 25.7MW-19 2/12/2019 134 <0.5 1.1 0.6J 5.2 <1 <1 <1 35.0 357.58 12.05 0.00 345.53 <500 -- 25.0MW-19 5/29/2019 71.2J <0.5 1.2 0.7J 5.4 <1 <1 <1 <10 357.58 10.29 0.00 347.29 <500 -- 4.3 MW-19 8/6/2019 <50 <0.5 <0.5 <0.5 1.3J <1 <1 <1 36.0 357.58 11.80 0.00 345.78 <500 -- 8.0 MW-19 2/13/2020 <50 <0.5 <0.5 <0.5 1J <1 <1 <1 <10 357.58 11.70 0.00 345.88 <500 -- 10.5MW-19 5/20/2020 244 2.1 17.5 4.9 36.7 <1 <1 <1 <10 357.58 10.91 0.00 346.67 <500 -- 6.7 MW-19 8/19/2020 622 3.8 37.5 13.2 99.0 <1 <1 <1 <10 357.58 11.45 0.00 346.13 <500 -- 27.5MW-19 11/16/2020 125 <0.5 17.5 0.8J 6.1 <1 <1 <1 <10 357.58 11.95 0.00 345.63 <500 -- 84.2MW-19 2/18/2021 561 4.3 41.2 12.6 89.5 <1 <1 <1 <10 357.58 12.25 0.00 345.33 <500 -- 116MW-19 6/28/2021 219 1.0 14.6 5.5 42.4 <1 <1 <1 <10 357.58 12.32 0.00 345.26 <500 -- 58.0MW-19 9/30/2021 156 0.6J 8.5 3.4 24.8 <1 <1 <1 <10 357.58 12.81 0.00 344.77 <500 -- 17.8MW-19 11/17/2021 1500 11.4 146 47.1 292 <1 <1 <1 <10 357.58 12.94 0.00 344.64 470 -- 161AMW-1 7/19/2005 -- -- -- -- -- -- -- -- -- NA NA -- NA -- -- -- AMW-1 7/2/2012 3950 1840** 8.7 210** 209 <1 <1 <1 101 360.90 13.17 0.00 347.73 <500 -- 170 SWE - Surveyed Well Elevation Page 53 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
AMW-1 10/1/2012 301 24.0 3.8 18.5 21.6 <1 <1 <1 77.2 360.90 12.90 0.00 348.00 <500 -- 6.5 AMW-1 1/21/2013 8670 2200** 30.8 813** 100 <1 <1 3.7 196 360.90 13.35 0.00 347.55 <500 -- 90.1AMW-1 4/9/2013 8160 1930 395 781 841 <10 <10 <10 247 360.90 13.42 0.00 347.48 <500 -- 83.1AMW-1 7/11/2013 80.8 18.4 1.4 3.6 6.2 <1 <1 <1 128 360.90 13.82 0.00 347.08 <500 -- 2.3 AMW-1 10/18/2013 <50 5.0 1.5 <0.5 2.8 <1 <1 <1 157 360.90 14.41 0.00 346.49 <500 -- 18.7AMW-1 1/17/2014 <50 <0.5 2.4 <0.5 7.7 <1 <1 <1 <10 360.90 14.69 0.00 346.21 <500 -- 15.0AMW-1 6/12/2014 94J <0.5 0.8J <0.5 31.7 <1 <1 <1 <10 360.90 14.55 0.00 346.35 <500 -- 12.5AMW-1 8/27/2014 131 <0.5 <0.5 <0.5 24.8 <1 <1 <1 160 360.90 14.70 0.00 346.20 <500 -- 11.8AMW-1 11/11/2014 <50 <0.5 <0.5 <0.5 15.5 <1 <1 <1 73.2 360.90 14.70 0.00 346.20 <500 -- 3.6 AMW-1 3/2/2015 145 1.1 2.2 0.8J 28.5 <1 <1 <1 39.0 360.90 14.47 0.00 346.43 <500 -- 6.2 AMW-1 5/19/2015 <50 <0.5 <0.5 <0.5 7.8 <1 <1 <1 23.5 360.90 14.70 0.00 346.20 <500 -- 1.5JAMW-1 8/18/2015 297 0.8J 7.3 2.4 74.9 <1 <1 <1 82.0 360.90 15.00 0.00 345.90 <500 -- 6.7 AMW-1 11/24/2015 <50 <0.5 <0.5 <0.5 3.0 <1 <1 <1 31.0 360.90 15.43 0.00 345.47 <500 -- 2.0 AMW-1 2/16/2016 <50 <0.5 1.5 <0.5 3.7 <1 <1 <1 50.5 360.90 15.55 0.00 345.35 <500 -- 2.1 AMW-1 5/31/2016 <50 <0.5 <0.5 <0.5 <1 <1 <1 2.0 55.9 360.90 15.71 0.00 345.19 <500 -- 4.0 AMW-1 8/15/2016 <50 <0.5 1.0 <0.5 1.0J <1 <1 2.2 63.9 360.90 16.00 0.00 344.90 <500 -- 4.1 AMW-1 11/30/2016 910 2.9 34 13 85 <1 <1 <1 25 360.90 16.41 0.00 344.49 <400 -- 5.0 SWE - Surveyed Well Elevation Page 54 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
AMW-1 2/14/2017 550 4.1 35 11 75 <1 <1 <1 63 360.90 14.42 0.00 346.48 <400 -- 9.3 AMW-1 5/31/2017 54 <0.5 <0.5 <0.5 <1 <1 <1 <1 42 360.90 14.18 0.00 346.72 <400 -- 2.5 AMW-1 8/24/2017 86 <0.5 <0.5 <0.5 0.7 <1 <1 <1 100 360.90 14.65 0.00 346.25 <400 -- 5.2 AMW-1 11/29/2017 <50 <0.5 <0.5 <0.5 1.6J <1 <1 1.6J 41.1 360.90 15.32 0.00 345.58 <500 -- 3.4 AMW-1 2/13/2018 <50 <0.5 <0.5 <0.5 1.6J <1 <1 <1 60.9 360.90 15.80 0.00 345.10 <500 -- 3.9 AMW-1 5/30/2018 52J <0.5 <0.5 <0.5 <1 <1 <1 2.3 77.2 360.90 15.74 0.00 345.16 <500 -- <1AMW-1 8/23/2018 175 <0.5 <0.5 <0.5 <1 <1 <1 6.6 95.7 360.90 16.23 0.00 344.67 <500 -- 23.7AMW-1 11/28/2018 109 <0.5 <0.5 <0.5 <1 <1 <1 5.6 87.4 360.90 16.61 0.00 344.29 <500 -- 7.2 AMW-1 2/12/2019 58.5J <0.5 <.0.5 <0.5 8.1 <1 <1 <1 34.3 360.90 14.10 0.00 346.80 <500 -- <1AMW-1 5/29/2019 75.9J <0.5 0.8J <0.5 3.3 <1 <1 3.0 203 360.90 13.25 0.00 347.65 <500 -- 5.0 AMW-1 8/6/2019 101 0.5J <0.5 <0.5 2.8 <1 <1 <1 64.0 360.90 13.90 0.00 347.00 <500 -- 8.6 AMW-1 2/13/2020 83 <0.5 <0.5 <0.5 2.0 <1 <1 <1 86.6 360.90 15.30 0.00 345.60 <500 -- 6.1 AMW-1 5/20/2020 156 2.7 16.8 3.6 24.9 <1 <1 <1 18.9J 360.90 12.95 0.00 347.95 <500 -- <1AMW-1 8/19/2020 76J 0.7J 2.7 1.2 9.3 <1 <1 <1 <10 360.90 13.10 0.00 347.80 <500 -- 2.4 AMW-1 11/16/2020 81J <0.5 1.2 1.2 7.5 <1 <1 <1 <10 360.90 13.80 0.00 347.1 <500 -- 4.6 AMW-1 2/18/2021 854 4.0 64.5 24.4 190 <1 <1 <1 <10 360.90 14.20 0.00 346.70 <500 -- 5.4 AMW-1 6/28/2021 61J <0.5 3.3 1.3 9.5 <1 <1 <1 <10 360.90 14.45 0.00 346.45 <500 -- 3.7 SWE - Surveyed Well Elevation Page 55 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
AMW-1 9/30/2021 114 0.6J 7.5 2.2 16.5 <1 <1 <1 <10 360.90 15.00 0.00 345.9 <500 -- 4.8 AMW-1 11/17/2021 39 1.4 19.8 6.4 47.9 <1 <1 <1 <10 360.90 15.14 0.00 345.76 <500 -- 4.0 AMW-2 7/2/2012 2330 88.2 8.7 48.6 17.4 <1 <1 <1 56.2 360.54 12.78 0.00 347.76 <500 -- 371AMW-2 10/1/2012 1980 95.9 113 78.2 232 <1 <1 <1 418 360.54 12.20 0.00 348.34 <500 -- 40.6AMW-2 1/21/2013 3920 250** 43.7 126 126 <1 <1 <1 1530 360.54 12.98 0.00 347.56 <500 -- 168AMW-2 4/9/2013 1350 201 68.4 24.6 30.1 <1 <1 <1 1070 360.54 12.93 0.00 347.61 <500 -- 79.7AMW-2 7/11/2013 109 12.5 18.1 <0.5 11.8 <1 <1 <1 203 360.54 13.32 0.00 347.22 <500 -- 5.6 AMW-2 10/18/2013 790 6.3 51.8 <0.5 260 <1 <1 2.2 82.8 360.54 13.88 0.00 346.66 <500 -- 163AMW-2 1/17/2014 113 <0.5 <0.5 <0.5 27.1 <1 <1 <1 15.4J 360.54 14.25 0.00 346.29 <500 -- 10.4AMW-2 6/12/2014 <50 <0.5 <0.5 <0.5 4.4 <1 <1 <1 11.3J 360.54 14.30 0.00 346.24 <500 -- 9.9 AMW-2 8/27/2014 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 47.3 360.54 14.28 0.00 346.26 <500 -- 8.7 AMW-2 11/11/2014 <50 <0.5 <0.5 <0.5 3.9 <1 <1 <1 85.4 360.54 14.80 0.00 345.74 <500 -- 7.7 AMW-2 3/2/2015 71J 1.9 4.3 1.4J 7.9 <1 <1 <1 123 360.54 13.92 0.00 346.62 <500 -- 5.2 AMW-2 5/19/2015 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 360.54 14.05 0.00 346.49 <500 -- 3.5 AMW-2 8/18/2015 103 0.6J 6.1 2.0 15.6 <1 <1 <1 40.0 360.54 14.45 0.00 346.09 <500 -- 11.1AMW-2 11/24/2015 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 25.7 360.54 14.93 0.00 345.61 <500 -- 2.0JAMW-2 2/16/2016 <50 <0.5 1.3 <0.5 3.7 <1 <1 <1 10.5J 360.54 14.86 0.00 345.68 <500 -- 1.7J SWE - Surveyed Well Elevation Page 56 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
AMW-2 5/31/2016 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 50.4 360.54 15.18 0.00 345.36 <500 -- 1.5JAMW-2 8/15/2016 <50 <0.5 0.6J <0.5 1.8J <1 <1 <1 38.9 360.54 15.45 0.00 345.09 <500 -- 1.4JAMW-2 11/30/2016 420 3.1 29 8.5 53 <1 <1 <1 <10 360.54 15.85 0.00 344.69 <400 -- <1AMW-2 2/14/2017 400 2.2 22 8.1 55 <1 <1 <1 72 360.54 13.82 0.00 346.72 <400 -- 3.0 AMW-2 5/31/2017 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 52 360.54 13.68 0.00 346.86 <400 -- <1AMW-2 8/24/2017 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 120 360.54 14.22 0.00 346.32 <400 -- <1AMW-2 11/29/2017 <50 <0.5 <0.5 <0.5 <1 <1 <1 2.0 27.3 360.54 14.89 0.00 345.65 <500 -- <1AMW-2 2/13/2018 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 55.7 360.54 15.18 0.00 345.36 <500 -- 8.2 AMW-2 5/30/2018 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 35.8 360.54 15.37 0.00 345.17 <500 -- <1AMW-2 8/23/2018 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 21.8 360.54 15.66 0.00 344.88 <500 -- 1.1JAMW-2 11/28/2018 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 12.8J 360.54 16.00 0.00 344.54 <500 -- 4.5JAMW-2 2/12/2019 66.8 <0.5 1.2 0.7J 5.7 <1 <1 <1 14.4J 360.54 13.35 0.00 347.19 <500 -- <1AMW-2 5/29/2019 122 <0.5 3.1 1.5 11.2 <1 <1 <1 172 360.54 12.77 0.00 347.77 <500 -- 1.8JAMW-2 8/6/2019 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 85 360.54 13.32 0.00 347.22 <500 -- <1AMW-2 2/13/2020 70 <0.5 0.8J 0.6J 3.9 <1 <1 <1 177 360.54 13.11 0.00 347.43 <500 -- 3.7 AMW-2 5/20/2020 <50 4.2 25.7 5.5 36.1 <1 <1 <1 121 360.54 12.05 0.00 348.49 <500 -- 1JAMW-2 8/19/2020 138 0.8J 4.2 1.7 13.5 <1 <1 <1 152 360.54 12.81 0.00 347.73 <500 -- <1 SWE - Surveyed Well Elevation Page 57 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
AMW-2 11/16/2020 107 <0.5 1.9 1.5 9.8 <1 <1 <1 300 360.54 13.41 0.00 347.13 <500 -- 2.0 AMW-2 2/18/2021 460 2.8 36.1 12.8 90.2 <1 <1 <1 281 360.54 13.80 0.00 346.74 <500 -- 5.7 AMW-2 6/28/2021 177 0.6J 10.6 4.4 34.0 <1 <1 <1 184 360.54 14.00 0.00 346.54 <500 -- 3.0 AMW-2 9/30/2021 218 0.8J 12.1 4.7 36.1 <1 <1 <1 210 360.54 14.43 0.00 346.11 <500 -- 1.6JAMW-2 11/17/2021 327 0.84J 17.2 7.1 59.0 <1 <1 <1 249 360.54 14.63 0.00 345.91 <500 -- <1AMW-3 7/2/2012 31700 346 53.4 1460** 7920** <2 <2 <2 15300** 360.29 12.69 0.00 347.60 629J -- 116AMW-3 10/1/2012 12100 23.2 24.9 369 1710 <10 <10 <10 <100 360.29 12.30 0.00 347.99 <500 -- <10 AMW-3 1/21/2013 29000 45.8 81.1 933 3040 <10 <10 <10 10600 360.29 12.93 0.00 347.36 <500 -- 168AMW-3 4/9/2013 14000 231 38.2 349 2490 <10 <10 <10 7050 360.29 12.98 0.00 347.31 569J -- 153AMW-3 7/11/2013 1590 24.8 <2.5 10.3 38.1 <5 <5 <5 11800** 360.29 13.39 0.00 346.90 <500 -- 24.0AMW-3 10/18/2013 3010 47.3 8.2J 18.7 130 <10 <10 <10 24800** 360.29 13.97 0.00 346.32 <500 -- 74.0AMW-3 1/17/2014 368 <2.5 <2.5 <2.5 <5 <5 <5 <5 15700 360.29 15.04 0.00 345.25 <500 -- <5AMW-3 6/12/2014 156 8.7 <1.25 <1.25 <2.5 <2.5 <2.5 <2.5 11800** 360.29 14.12 0.00 346.17 <500 -- 33.9AMW-3 8/27/2014 54J <2.5 <2.5 <2.5 <5 <5 <5 <5 16100** 360.29 14.37 0.00 345.92 <500 -- 18.9AMW-3 11/11/2014 126 <1 <1 <1 <2 <2 <2 <2 11100** 360.29 14.40 0.00 345.89 <500 -- <2AMW-3 3/2/2015 180 <1 4.8 <2 8.2 <2 <2 <2 4520** 360.29 13.90 0.00 346.39 <500 -- 22.4AMW-3 5/19/2015 109 <1 <1 <1 <2 <2 <2 <2 3650 360.29 13.95 0.00 346.34 <500 -- 10.9 SWE - Surveyed Well Elevation Page 58 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
AMW-3 8/18/2015 231 1.0 5.8 1.5J 12.8 <2 <2 <2 7160** 360.29 14.58 0.00 345.71 <500 -- 19.2AMW-3 11/24/2015 234 <1 <1 <1 <2 <2 <2 <2 3330** 360.29 14.87 0.00 345.42 <500 -- 5.3 AMW-3 2/16/2016 132 <1 1.6 <1 <2 <2 <2 <2 9800 360.29 15.20 0.00 345.09 <500 -- 11.5AMW-3 5/31/2016 132 <0.5 <0.5 <0.5 <1 <1 <1 <1 2450 360.29 15.10 0.00 345.19 <500 -- <1AMW-3 8/15/2016 149 <1 <1 <1 <2 <2 <2 <2 3990** 360.29 15.52 0.00 344.77 <500 -- 11.3AMW-3 11/30/2016 210 <1 2.7 1.4 9.2 <1 <1 <1 2800 360.29 16.08 0.00 344.21 <400 -- <1AMW-3 2/14/2017 250 2.7 1.4 1.1 8.7 <2 <2 <2 3700 360.29 13.60 0.00 346.69 <400 -- 13AMW-3 4/4/2017 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 238 360.29 13.64 0.00 346.65 <400 -- 10AMW-3 5/31/2017 <500 <5 <5 <5 <10 <10 <10 <10 3100 360.29 14.00 0.00 346.29 <400 -- 14AMW-3 8/24/2017 130 <0.5 <0.5 <0.5 <1 <1 <1 <1 8400 360.29 14.05 0.00 346.24 <400 -- 7.2 AMW-3 11/29/2017 <50 <1 <1 <1 <2 <2 <2 <2 3540 360.29 14.73 0.00 345.56 <500 -- 2.2JAMW-3 2/13/2018 444 8.5 <1 <1 <2 <2 <2 <2 12300 360.29 15.30 0.00 344.99 <500 -- 28.0AMW-3 5/30/2018 250 <1 <1 <1 <2 <2 <2 <2 5990 360.29 15.15 0.00 345.14 <500 -- 8.2JAMW-3 8/23/2018 322 <2.5 <2.5 <2.5 <5 <5 <5 <5 5820 360.29 15.55 0.00 344.74 <500 -- <5AMW-3 11/28/2018 496 <1.25 <1.25 <1.25 <2.5 <2.5 <2.5 <2.5 4300 360.29 15.84 0.00 344.45 <500 -- <2.5AMW-3 2/12/2019 190 <2 1.1J <1 2.9J <2 <2 <2 2000 360.29 13.60 0.00 346.69 <500 -- 3.5JAMW-3 5/29/2019 200 <0.5 1.0 0.7J 4.7 <1 <1 <1 3540 360.29 12.62 0.00 347.67 <500 -- 11.0 SWE - Surveyed Well Elevation Page 59 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled

Well Date TPHg Benzene Toluene E-Benz Xylenes ETBE DIPE MTBE TAME TBA (8260B)
(Concentration, g/L) 

LAGUNA HILLS, CA
G&M OIL CO. STATION #40
TABLE 2 - HISTORICAL GROUNDWATER MONITORING DATA
SWE DTW PT E-WATER TPHd MTBE
AMW-3 8/6/2019 162 <0.5 1.5 1.3 9.4 <1 <1 <1 2780* 360.29 13.11 0.00 347.18 <500 -- 9.0 AMW-3 2/13/2020 153 <0.5 1.3J 1.1 7.8 <1 <1 <1 1990 360.29 14.08 0.00 346.21 <500 -- 7.0 AMW-3 5/20/2020 206 2.4 14.3 3.3 17.5 <1 <1 <1 2200 360.29 12.18 0.00 348.11 <500 -- 7.0 AMW-3 8/19/2020 312 1.7 13.8 5.4 13.5 <1 <1 <1 975 360.29 12.62 0.00 347.67 <500 -- 4.0 AMW-3 11/16/2020 99.8J <0.5 1.3 <0.5 7.2 <1 <1 <1 1300 360.29 13.40 0.00 346.89 <500 -- 3.1 AMW-3 2/18/2021 268 1.2J 16.3 5.4 42.6 <1 <1 <1 974 360.29 13.66 0.00 346.63 <500 -- 7.8 AMW-3 6/28/2021 205 0.9J 15.1 5.2 36.3 <1 <1 1.4J 772 360.29 13.90 0.00 346.39 <500 -- 5.2 AMW-3 9/30/2021 123 <0.5 4.2 1.6J 11.8 <1 <1 <1 1170 360.29 14.33 0.00 345.96 <500 -- 1.6JAMW-3 11/17/2021 380 1.6 25.5 8.7 69.9 <1 <1 <1 1050 360.29 14.62 0.00 345.67 <500 -- 7.0 AMW-3I 11/24/2015 85J <0.5 <0.5 <0.5 2.0 <1 <1 <1 1250 361.20 15.37 0.00 345.83 <500 -- <1AMW-3I 2/16/2016 <50 <0.5 0.8J <0.5 1.9J <1 <1 <1 705 361.20 15.18 0.00 346.02 565J -- <1AMW-3I 5/31/2016 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 245 361.20 15.97 0.00 345.23 <500 -- <1AMW-3I 8/15/2016 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 41.0 361.20 16.20 0.00 345.00 <500 -- <1AMW-3I 11/30/2016 2500 3.6 61 33 224 <1 <1 <1 2100 361.20 16.60 0.00 344.60 7200 -- <1AMW-3I 2/14/2017 84 <0.5 <0.5 <0.5 2.09 <1 <1 <1 20 361.20 14.68 0.00 346.52 <400 -- <1AMW-3I 4/4/2017 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 361.20 14.27 0.00 346.93 <400 -- 4.8 AMW-3I 5/31/2017 <50 <0.5 <0.5 <0.5 <1 <1 <1 <1 <10 361.20 14.20 0.00 347.00 <400 -- <1 SWE - Surveyed Well Elevation Page 60 of 88DTW - Depth To WaterPT - Product Thickness (apparent)E-Water - Groundwater elevation TPHg - Total Petroleum Hydrocarbons (gasoline) EPA 8015MTPHd - Total Petroleum Hydrocarbons (diesel) EPA 8015MMTBE - Methyl tert-Butyl ether< - Less than laboratory detection limits -- - Not analyzed
NA - Not Available
g/L - Micrograms per Liter TAME - tert-Amyl Methyl ether DIPE - Di-isopropyl etherETBE - Ethyl tert-butyl etherTBA - tert-Butyl AlcoholLPH - Liquid-Phase Hydrocarbons* - Obtained from a Higher Dilution** - Sampled on a Different Date x - Gasoline range TPH are petroleum hydrocarbons in carbon range C-4C- J - Concentration is between the RL and the MDL; trace concentration c - Result confirmed by reanalysis
p or NP - pre-purge sample results NS - Not Sampled