San Mateo City Council
May 18, 2026

Contractor Name:

Date: 10/30/2007
Permit Type: MH
Description: Replace furnace(60 BTUs) and vent/duct work for retail space.

Permit Description: MECHANICAL
Work Class: Alteration, Remodel
Proposed Use: Retail sales, basement and ground floor
Permit Number: MH2007230087
Status: Finalled
Valuation: $6,900.00
Contractor Company:

Contractor Name:
6112727- 8 Page 202
DRAFT
5206 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 8/3/2000
Permit Type:

Description: TENANT INTERIOR IMPROVEMENT/ "KNORR ARCHITECTURE" SPACE (925 SQ.FT.) Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 202311
Status: Issued
Valuation: $28,100.00
Contractor Company:

Contractor Name:
254 S B ST
Date: 1/16/2003
Permit Type:

Description: INSTALL NEW SIGN FOR "TAQUERIA PUPSERIA" 1FT 18IN X 3FT 6IN Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 212302
Status: Finalled
Valuation: $1,000.00
Contractor Company:

Contractor Name:
6112727- 8 Page 203
DRAFT
5207 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 9/5/2002
Permit Type:

Description: INSTALLATION OF HOOD & DUCT FIRE SYSTEM IN RESTAURANT HOOD "SAN MATEO LIQUORS"
Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 210935
Status: Finalled
Valuation: $4,200.00
Contractor Company:

Contractor Name:

Date: 7/3/2002
Permit Type:

Description: INSTALL HOOD AND DUCT SYSTEM,A IR SUPPLY AND EXHAUST.

Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 207749
Status: Finalled
Valuation: $21,900.00
Contractor Company:

Contractor Name:

Date: 6/18/2002
Permit Type:

Description: TEMPORARY BANNER FOR "TAQUERIA PUPUSERIA"
Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 210025
Status: Issued
Valuation: $0.00
Contractor Company:

Contractor Name:
6112727- 8 Page 204
DRAFT
5208 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
255 S B ST
Date: 9/1/2011
Permit Type: FP
Description: Connect and monitor new fire alarm monitoring system Permit Description: FIRE
Work Class: Repair
Proposed Use: Restaurant
Permit Number: FP2011240599
Status: Finalled
Valuation: $2,195.00
Contractor Company:

Contractor Name:

Date: 8/24/2011
Permit Type: SP
Description: Pain new sign on existing awning (Kumon Math Readubg Syccess) 16sf Permit Description: SIGN
Work Class: Alteration, Remodel
Proposed Use: Retail sales, basement and ground floor
Permit Number: SP2011240719
Status: Issued
Valuation: $700.00
Contractor Company:

Contractor Name:

Date: 10/30/2007
Permit Type: PL
Description: Remove water heater and replace with electric water heater to retail space.

Permit Description: PLUMBING
Work Class: Alteration, Remodel
Proposed Use: Retail sales, basement and ground floor
Permit Number: PL2007230089
Status: Finalled
Valuation: $760.00
Contractor Company:

Contractor Name:
6112727- 8 Page 205
DRAFT
5209 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
270 S B ST
Date: 3/27/2003
Permit Type:

Description: T/O & INSTALL 1-PLY MODIFIED BASE SHEET, APPLY APP 160 AND 1-PLY APP 180 FR (66SQ)
Permit Description:

Work Class: Repair
Proposed Use: Offices
Permit Number: 213229
Status: Finalled
Valuation: $40,800.00
Contractor Company:

Contractor Name:

Date: 4/24/2000
Permit Type:

Description: DEMOLISH INTERIOR WALL PARTITI ONS(PREP. FOR TI)2,771 SQ.FT.

Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 201113
Status: Issued
Valuation: $3,700.00
Contractor Company:

Contractor Name:
6112727- 8 Page 206
DRAFT
5210 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
277 S B ST
Date: 6/13/2019
Permit Type: FR
Description: Modify (E) fire alarm system: Add 12 (N) devices and relocate 8 (E) devices. "Meet Fresh"
TI on BD2018-269089
Permit Description: FIRE
Work Class: Fire Alarm
Proposed Use: Fire Permit
Permit Number: FR-2019-271832
Status: Issued
Valuation: $0.00
Contractor Company:

Contractor Name: SAFCO SOUND & SECURITY INC
Date: 5/23/2019
Permit Type: SG
Description: Install (3) new illuminated wall channel letters signs at the front, side and back of the building for "Meet Fresh" (25SF each).

Permit Description: SIGN
Work Class: Permanent Sign
Proposed Use: Signs
Permit Number: SG-2019-271277
Status: Issued
Valuation: $9,000.00
Contractor Company:

Contractor Name: SIGNS EXPRESS MANUFACTURING COMPANY
6112727- 8 Page 207
DRAFT
5211 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 4/16/2019
Permit Type: FR
Description: Fire sprinkler permit for change of use from "HSBC BANK" to "MEET FRESH":

Modification to relocate and add 21 fire sprinkler heads. building permit#: 271146
Permit Description: FIRE
Work Class: Family
Proposed Use: Fire Permit - Fire Sprinkler - Comm / Multi Permit Number: FR-2019-271146
Status: Issued
Valuation: $4,500.00
Contractor Company:

Contractor Name: A D R FIRE PROTECTION
Date: 1/9/2019
Permit Type: BD
Description: RESTAURANT TI WITH CHANGE OF USE FROM "HSBC BANK" TO "MEET FRESH" (4773 SF). DEMO (E) OFFICES AND CLOSETS TO CREATE (N) WOMENS &

MENS RESTROOMS, KITCHEN, DINING AREA, SERVICE AREA, HALLWAY, WALK-IN -FREEZER, WALK-IN-CLOSET, AND STORAGE AREA. MEPs INCLUDED SIGNS, BARRICADE AND FIRE ALARM TO BE PULLED AS SEPARATE PERMITS. fire sprinkler#: FR-2019-271146
Permit Description: BUILDING
Work Class: TI (Office)
Proposed Use: Commercial (Alter)
Permit Number: BD-2018-269089
Status: Issued
Valuation: $300,000.00
Contractor Company:

Contractor Name: WIN POWER CONSTRUCTION AND ELECTRIC CORPORATION 6112727- 8 Page 208
DRAFT
5212 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 7/11/2016
Permit Type: EP
Description: Remove and replace 9 sf sidewalk to repair floor hydrant in front of HSBC Bank.

Must maintain pedestrian safety at all time.

Permit Description:

Work Class: General Construction
Proposed Use: PW - Encroachment Permit
Permit Number: EP-2016-000141
Status: Finaled
Valuation: $0.00
Contractor Company:

Contractor Name:

Date: 12/20/2007
Permit Type: sp
Description: Install Temporary Banner "Coming Soon" - 1 Banner Per Street Frontage (total of 2) to be displayed from 11-13-7 thru 12-13-7
RV#1-Extend temporary banner. Valid from 12/21/07 to 01/20/08 per BEP.cjn RV#2: Relocate sign D on building facade
Permit Description: SIGN
Work Class: Alteration, Remodel
Proposed Use: Bank
Permit Number: sp2007230201
Status: Finalled
Valuation: $600.00
Contractor Company:

Contractor Name:
6112727- 8 Page 209
DRAFT
5213 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 12/3/2007
Permit Type: BD
Description: Infill of (2) exterior wall openings at 277 South B Street, and separating the rear portion of the buildings at 253 South B Street. Final inspection of 277 South B Street is contingent upon the Final inspection of 253 South B Street (Project number BD2007-229459)
Permit Description: BUILDING
Work Class: Alteration, Remodel
Proposed Use: Bank
Permit Number: BD2007229361
Status: Finalled
Valuation: $45,000.00
Contractor Company:

Contractor Name:
301 S B ST
Date: 4/25/2013
Permit Type: BD
Description: Combining 2 vacant spaces. 1,750 square feet area combined. Proposed retaill space. Create wall opening between 2 2 tenant spaces.

Permit Description: BUILDING
Work Class: Alteration
Proposed Use: Commercial
Permit Number: BD2013245679
Status: Finaled
Valuation: $600.00
Contractor Company:

Contractor Name:
6112727- 8 Page 210
DRAFT
5214 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 3/28/2011
Permit Type: BD
Description: Remove 51 architectural knee braces(features) from existing building due to failing adhesives. Owner will install new decorative features(52) to replace those that have been removed by this permit.

Permit Description: BUILDING
Work Class: Alteration, Remodel
Proposed Use: Retail sales, basement and ground floor
Permit Number: BD2011239442
Status: Issued
Valuation: $4,500.00
Contractor Company:

Contractor Name:
307 S B ST
Date: 10/23/2018
Permit Type: BD
Description: CODE ENFORCEMENT: Commercial TI Office on 2nd floor (Units 1-8, 13-17) for "US Real Estate Investments" (1800sf). Remove (E) and install (N) non load bearing walls, in-fill (E) wall openings, and replace (E) doors at offices. Remodel 2 restrooms. Convert (E) office into (N) break room with cabinets, countertops, and sink. Remove (E) storage room. Install (N) electrical throughout. Install (N) ADA handrail at stairs.

Revision #1: Replace (E) 100amp sub-panel box at the stair well. (ISSUED 3/5/19).

Revision 2: Remove proposed insulation from Scope. Relocate proposed breakroom. Retain door layout for Office #3. Remove walls between 4 offices. Add 2nd break room. SUBMITTED 11/25/19
CE2018-000255
Permit Description: BUILDING
Work Class: TI (Office)
Proposed Use: Commercial (Alter)
Permit Number: BD-2018-266741
Status: Issued (Revision Pending)
Valuation: $94,020.00
Contractor Company:

Contractor Name: PACIFIC HEIGHTS CONSTRUCTION
6112727- 8 Page 211
DRAFT
5215 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 2/23/2015
Permit Type: PL
Description: Install sewer line cleanout valve outside the building foundation.

Permit Description: PLUMBING
Work Class: Converted
Proposed Use: Commercial (Repair)
Permit Number: PL2015252662
Status: Finaled
Valuation: $3,500.00
Contractor Company:

Contractor Name:

Date: 8/31/2011
Permit Type: BD
Description: Install new single ply roof system over existing roof (48sq) Permit Description: BUILDING
Work Class: Repair
Proposed Use: Retail sales, basement and ground floor
Permit Number: BD2011240772
Status: Finalled
Valuation: $18,000.00
Contractor Company:

Contractor Name:
6112727- 8 Page 212
DRAFT
5216 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
311 S B ST
Date: 1/25/2011
Permit Type: SP
Description: Install permanent sign to structure. Illuminated 22 square feet area wall sign. "ClickAway Computers & Networking"
Permit Description: SIGN
Work Class: Alteration, Remodel
Proposed Use: Retail sales, basement and ground floor
Permit Number: SP2011239013
Status: Finalled
Valuation: $6,675.00
Contractor Company:

Contractor Name:
313 S B ST
Date: 1/16/2009
Permit Type: SP
Description: Temporary Banner for "Verizon Wireless" to be placed for the Month's 1/15/09-- 2/15/09
Permit Description: SIGN
Work Class: Alteration, Remodel
Proposed Use: Retail sales, basement and ground floor
Permit Number: SP2009233561
Status: Finalled
Valuation: $200.00
Contractor Company:

Contractor Name:
6112727- 8 Page 213
DRAFT
5217 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 3/28/2007
Permit Type: BD
Description: Tear Off Existing Tar & Gravel Roof Down to Wood Deck - Re-Roof with Three (3) Layers Glass Ply IV Felt - 4 squares
Permit Description: BUILDING
Work Class: Repair
Proposed Use: Retail sales, basement and ground floor
Permit Number: BD2007228152
Status: Finalled
Valuation: $3,250.00
Contractor Company:

Contractor Name:

Date: 1/5/2004
Permit Type:

Description: TEAR OFF & RE-ROOF W/ TAR & GRAVEL. 3000SF Permit Description:

Work Class: Repair
Proposed Use: Offices
Permit Number: 216494
Status: Finalled
Valuation: $11,500.00
Contractor Company:

Contractor Name:
6112727- 8 Page 214
DRAFT
5218 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
314 S B ST
Date: 9/24/2018
Permit Type: SG
Description: New signage for Joe and the Juice - Installation of (1) illuminated wall signs of 20sf and (2) illuminated interior window signs of 6.7sf each TI Permit BD-2018-265833
Permit Description: SIGN
Work Class: Permanent Sign
Proposed Use: Signs
Permit Number: SG-2018-268945
Status: Expired Plan Check
Valuation: $7,000.00
Contractor Company:

Contractor Name:

Date: 7/10/2018
Permit Type: FIRE
Description: INSTALL A NEW FIRE ALARM SYSTEM TO MONITOR THE WET PIPE FIRE SPRINKLERS. TOTAL 5 DEVICES
Permit Description:

Work Class: Fire Alarm
Proposed Use: Fire Permit
Permit Number: FIRE-2018-267931
Status: Expired
Valuation: $3,000.00
Contractor Company:

Contractor Name: FOX SECURITY AND COMM INC
6112727- 8 Page 215
DRAFT
5219 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 5/21/2018
Permit Type: FS
Description: F1: Modify (E) fire sprinkler system - Add 27 (N) heads and relocate 3 (E) heads.

T.I. FOR "JOE AND THE JUICE" (1727 SF) [BD2018-265833]
Permit Description: FIRE SPRINKLER
Work Class: Alter, Non Residential
Proposed Use: Fire Sprinkler
Permit Number: FS-2018-267311
Status: Finaled
Valuation: $7,350.00
Contractor Company:

Contractor Name: TRAINOR COMMERCIAL CONSTRUCTION INC
Date: 5/15/2018
Permit Type: BD
Description: T.I. FOR "JOE AND THE JUICE" (1727 SF): (N) WALLS, DOORS, CASEWORK AND

KITCHEN EQUIPMENT, (N) CEILING AND LIGHTING, (N) HVAC, REPLACE (E)

FIXTURES IN RESTROOMS, CHANGE OF USE FROM RETAIL TO RESTAURANT DEFERRED SUBMITTALS: (N) SIGNAGE, FIRE SPRINKLERS, PATIO SEATING [OUTDOOR PATIO SEATING REMOVED FROM SCOPE OF WORK]
F1: Modify (E) fire sprinkler system - Add 27 (N) heads and relocate 3 (E) heads. [FS2018-267311]
FIRE ALARM PERMIT # FIRE-2018-267931
Permit Description: BUILDING
Work Class: TI (Restaurant)
Proposed Use: Commercial (Alter)
Permit Number: BD-2018-265833
Status: Finaled
Valuation: $350,000.00
Contractor Company:

Contractor Name: TRAINOR COMMERCIAL CONSTRUCTION INC
6112727- 8 Page 216
DRAFT
5220 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 7/19/2016
Permit Type: BD
Description: Conversion of hair salon to bridal shop. Alteration of rooms to create open area, MEP changes, 314 SF.

Permit Description: BUILDING
Work Class: TI (Retail)
Proposed Use: Commercial (Alter)
Permit Number: BD-2016-258909
Status: Finaled
Valuation: $16,139.60
Contractor Company:

Contractor Name:

Date: 3/10/2003
Permit Type:

Description: "SAN FRANCISCO FINE BAKERY"/ TI WORK/1,976 SQ.FT./NEW REST- ROOM/ Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 213041
Status: Finalled
Valuation: $197,000.00
Contractor Company:

Contractor Name:

Date: 7/9/2002
Permit Type:

Description: REMOVE PORTION OF BLDG AND STAIRWAY AND ADD NEW STEEL STAIRWAY Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 210167
Status: Issued
Valuation: $32,000.00
Contractor Company:

Contractor Name:
6112727- 8 Page 217
DRAFT
5221 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 4/9/2002
Permit Type:

Description: REVISION OF STRUCTURAL WORK
Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 206554
Status: Finalled
Valuation: $422,000.00
Contractor Company:

Contractor Name:
316 S B ST
Date: 9/22/2005
Permit Type:

Description: CHANGE OF US FOR "FUSION" MODERN DAY SPA" (1,660SF) Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 222620
Status: Finalled
Valuation: $82,000.00
Contractor Company:

Contractor Name:
6112727- 8 Page 218
DRAFT
5222 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
317 S B ST
Date: 7/2/2013
Permit Type: EL
Description: electrical; REPAIR ON 600 AMP SERVICE. PANEL UPGRADE Permit Description: ELECTRICAL
Work Class: Repair
Proposed Use: Commercial
Permit Number: el2013246671
Status: Issued
Valuation: $5,500.00
Contractor Company:

Contractor Name:

Date: 9/22/2008
Permit Type: SP
Description: COMMERCIAL SIGNAGE FOR "SCANDINAVIAN DESIGNS": 3-ILLUMINATED CHANNEL LETTER SIGNS (A: 59.5-SF, B: 33.38-SF, C: 68.87-SF) Permit Description: SIGN
Work Class: Alteration, Remodel
Proposed Use: Retail sales, basement and ground floor
Permit Number: SP2008232465
Status: Finalled
Valuation: $10,000.00
Contractor Company:

Contractor Name:
6112727- 8 Page 219
DRAFT
5223 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 9/20/2006
Permit Type: BD
Description: Remove & Replace Sheet Rock on First and Second Floor Ceilings and Walls Damaged by malfunctioning Fire Sprinklers - approx 7000 sq ft E1- Re-wire electrical conductors and relocate outlets and electrical box to code compliance.

Permit Description: BUILDING
Work Class: Repair
Proposed Use: Retail sales, upper floors
Permit Number: BD2006226161
Status: Finalled
Valuation: $24,000.00
Contractor Company:

Contractor Name:

Date: 5/10/2005
Permit Type:

Description: BUILD "DOG HOUSE: ABOVE ELEVATOR SHAFT TO MEET CODE REQUIREMENT Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 219633
Status: Finalled
Valuation: $11,500.00
Contractor Company:

Contractor Name:
6112727- 8 Page 220
DRAFT
5224 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 6/11/2003
Permit Type:

Description: REPLACEMENT OF GLASS & FRAMES SIZE FOR SIZE 15 OPENINGS Permit Description:

Work Class: Repair
Proposed Use: Offices
Permit Number: 214067
Status: Finalled
Valuation: $45,000.00
Contractor Company:

Contractor Name:
318 S B ST
Date: 12/5/2000
Permit Type:

Description: T/O;RE-ROOF W/ 1-PLY BASE; 1-PLY APP#160; &#180 ROOF MEMBRANE(58 SQ.) Permit Description:

Work Class: Repair
Proposed Use: Offices
Permit Number: 204234
Status: Finalled
Valuation: $26,000.00
Contractor Company:

Contractor Name:
6112727- 8 Page 221
DRAFT
5225 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
320 S B ST
Date: 1/5/2009
Permit Type: PL
Description: Replace/Repair existing sewer lateral line(4") on private and public property with encroachment permit. 5 feet in length.

Permit Description: PLUMBING
Work Class: Repair
Proposed Use: Restaurant
Permit Number: PL2009233467
Status: Finalled
Valuation: $4,500.00
Contractor Company:

Contractor Name:

Date: 10/31/2006
Permit Type: BD
Description: Interior TI for "B Street & Vine" for the Beer Service Area - Enclose Prep Area with a wall - Install pony wall
F1- Fire sprinklers. 11 heads. 1,900 square feet.

Permit Description: BUILDING
Work Class: Alteration, Remodel
Proposed Use: Retail sales, basement and ground floor
Permit Number: BD2006225913
Status: Finalled
Valuation: $51,794.00
Contractor Company:

Contractor Name:
6112727- 8 Page 222
DRAFT
5226 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
333 S B ST
Date: 10/4/2019
Permit Type: BD
Description: REROOF: Apply silicone white coating. 11,000 SF Permit Description: BUILDING
Work Class: Re-Roof
Proposed Use: Commercial (Repair)
Permit Number: BD-2019-273349
Status: Issued
Valuation: $45,000.00
Contractor Company:

Contractor Name: CALIFORNIA ROOF TECHNICIANS INC
Date: 3/22/2019
Permit Type: SG
Description: Install 1 (N) illuminated wall sign for "COREPOWER YOGA" (35.24sf).

Permit Description: SIGN
Work Class: Permanent Sign
Proposed Use: Signs
Permit Number: SG-2019-270681
Status: Issued
Valuation: $4,000.00
Contractor Company:

Contractor Name: ALPHA ARCHITECTURAL SIGNS AND LIGHTING 6112727- 8 Page 223
DRAFT
5227 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 7/23/2018
Permit Type: FA
Description: F1: INSTALL NEW FIRE ALARM SYSTEM (33 DEVICES).

Revision 1: Add 27 additional devices to system (total 60). ISSUED 3/14/19 T.I. REMODEL FOR 333-345 SOUTH B ST (BD-2017-262763).

Permit Description: FIRE ALARM
Work Class: System (New)
Proposed Use: Fire Alarm
Permit Number: FA-2018-266665
Status: Finaled
Valuation: $8,000.00
Contractor Company:

Contractor Name: B I C SECURITY
Date: 3/8/2018
Permit Type: SG
Description: Install temporary banner for "COREPOWER YOGA" (50sf). This shall be posted for 30 days, between 3/15/18 - 4/15/18
Permit Description: SIGN
Work Class: Temporary Banner
Proposed Use: Signs
Permit Number: SG-2018-266310
Status: Expired
Valuation: $500.00
Contractor Company:

Contractor Name:
6112727- 8 Page 224
DRAFT
5228 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 12/1/2017
Permit Type: BD
Description: NEW PAVING IN AT BACK OF 345 B ST. AND AROUND PERIMETER OF 360

RAILROAD AVE, SCOPE INCLUDES SCREENED-IN FENCE, LOCKING GATES FOR

TENANTS, BIKE PARKING AND DRIP IRRIGATION FOR LANDSCAPING, TREE

REMOVAL AT SOUTH SIDE OF BUILDING

DEFERRED SUBMITTAL FOR PLUMBING AND ELECTRICAL
Permit Description: BUILDING
Work Class: Surfacing
Proposed Use: Commercial (Repair) - Paving/Re
Permit Number: BD-2017-264681
Status: Expired
Valuation: $38,000.00
Contractor Company:

Contractor Name: DEACON CONSTRUCTION LLC
Date: 11/29/2017
Permit Type: BD
Description: T.I. REMODEL FOR 333-345 SOUTH B ST: FASÇADE REMODEL AT 2ND AND 3RD FLOORS INCLUDING FRONT PATIO BALCONIES AT 2ND FLR (APPROX. 387 SF) AND 3RD FLR (APPROX. 770 SF), (N) WINDOWS AT NORTH, SOUTH AND EAST FACADES; REMODEL ON 2ND FLOOR (10,343 SF), DEMO (E) MEZZANINE AND REPLACE WITH (N) 3RD FLR (4,999) IN EXISTING SHELL, (N) STAIRS AND ELEVATOR; MECHANICAL, ELECTRICAL AND PLUMBING INCLUDED ON 2ND AND 3RD FLOOR. PA-2016-0090. FIRE ALARM TO BE DEFERRED SUBMITTALS F1: Modify (E) fire sprinkler system with 86 (N) heads. [264323] SUBMITTED 9/21/17 REV#1: REVISED EAST EXIT STAIRS FOOTPRINT; FLOOR PLANS, STRUCTURAL

PLANS AND CALCULATIONS REVISED ACCORDINGLY, NO CHANGE IN EXITING AND EGRESS ANALYSIS, ADD (N) SHOWER ROOM AND MOTHER'S ROOM AT 2ND FLOOR (12/18/17)
REV #2: INSTALL TEMPORARY BARRIER FOR ALTER OF THE EXIT PATHWAY. (6/12/18).

Revision 3: Remove roof access ladder and hatch. Add exterior caged ladder at 3rd floor. (ISSUED 11/29/18)
REVISION #4: ADDED DRAFT CURTAINS AND CLOSELY SPACED SPRINKLER HEADS AT LOBBY STAIRS. (ISSUED 11/29/18).

Permit Description: BUILDING
Work Class: Addition/Alteration
Proposed Use: Commercial (Addition)
Permit Number: BD-2017-262763
Status: Issued
Valuation: $1,070,527.40
Contractor Company:

Contractor Name: DEACON CORP
6112727- 8 Page 225
DRAFT
5229 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 10/2/2017
Permit Type: FS
Description: F1: Modify (E) fire sprinkler system with 86 (N) heads.

REVISION #1: RELOCATE FIRE SPRINKLER RISER LOCATION ON 1ST, 2,D, AND 3RD FLOOR LOBBY AREA. ADD (3) ADDITIONAL PENDENT FIRE SPRINKLER AT 2ND FLOOR LOBBY. RELOCATE LINE PIPING ON 3RD FLOOR PATIO. REVISED CALCS TO REFLECT NEW CHANGES. (ISSUED 7/30/18).

TI Addition and remodel for 333-345 S B St [BD2017-262763] PA-2016-0090
Permit Description: FIRE SPRINKLER
Work Class: Alter, Non Residential
Proposed Use: Fire Sprinkler
Permit Number: FS-2017-264323
Status: Finaled
Valuation: $37,500.00
Contractor Company:

Contractor Name: CALIFORNIA FIRE SYSTEMS INC
Date: 9/7/2017
Permit Type: BD
Description: 2,645SF SOFT DEMO FOR OFFICE 333-345 S. B STREET: INTERIOR WALL DEMOLITION AT 2ND FLOOR; SOME INTERIOR WALL AND FLOOR FINISH REMOVAL AT 2ND FLOOR AND MEZZANINE.

BUILDING TI PERMIT#: BD-2017-262763
Permit Description: BUILDING
Work Class: TI (Soft Demo)
Proposed Use: Commercial (Alter)
Permit Number: BD-2017-263076
Status: Finaled
Valuation: $81,571.80
Contractor Company:

Contractor Name: DEACON CONSTRUCTION LLC
6112727- 8 Page 226
DRAFT
5230 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 10/13/2016
Permit Type: BD
Description: Remove and replace awning for change in color and add graphic lettering for "Corepower Yoga" 37sf
Permit Description: BUILDING
Work Class: Awning(s)
Proposed Use: Commercial (Alter)
Permit Number: BD-2016-259595
Status: Finaled
Valuation: $3,500.00
Contractor Company:

Contractor Name:

Date: 8/24/2016
Permit Type: FA
Description: T.I. for CorePower Yoga Studio. 2 (N) studio rooms, 2 (N) full mens and womens dressing room with full bathrooms, showers and lockers. (N) lobby retail area. *Change of Use. 4,091, (N) MECHANICAL ROOMS, (N) UTILITY ROOM, (N) OFFICE, (N) RETAIL STORAGE ROOM, (N) ROOFTOP EQUIPMENT F1 - FIRE SPRINKLERS, 27 HEADS (ISSUED 8/8/16) F2 - FIRE ALARM, 7 DEVICES (ISSUED 8/24/16) Permit Description: FIRE ALARM
Work Class: System (New)
Proposed Use: Fire Alarm
Permit Number: FA-2016-259453
Status: Expired
Valuation: $6,500.00
Contractor Company:

Contractor Name:
6112727- 8 Page 227
DRAFT
5231 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 8/8/2016
Permit Type: FS
Description: T.I. for CorePower Yoga Studio. 2 (N) studio rooms, 2 (N) full mens and womens dressing room with full bathrooms, showers and lockers. (N) lobby retail area. *Change of Use. 4,091, (N) MECHANICAL ROOMS, (N) UTILITY ROOM, (N) OFFICE, (N) RETAIL STORAGE ROOM, (N) ROOFTOP EQUIPMENT F1 - FIRE SPRINKLERS, 27 HEADS [BD-2016-256982]
Permit Description: FIRE SPRINKLER
Work Class: Alter, Non Residential
Proposed Use: Fire Sprinkler
Permit Number: FS-2016-259205
Status: Expired
Valuation: $2,000.00
Contractor Company:

Contractor Name:

Date: 7/14/2016
Permit Type: BD
Description: Voluntary Seismic Upgrade- Phase I: Work is limited to basement and ground floor in front tenant space (for future Phase II work). (Phase II is the 3rd floor addition and facade modifications - to be under separate permit).

Permit Description: BUILDING
Work Class: Foundation Repair
Proposed Use: Commercial (Repair)
Permit Number: BD-2016-257999
Status: Finaled
Valuation: $60,000.00
Contractor Company:

Contractor Name:
6112727- 8 Page 228
DRAFT
5232 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 6/2/2016
Permit Type: BD
Description: T.I. for CorePower Yoga Studio. 2 (N) studio rooms, 2 (N) full mens and womens dressing room with full bathrooms, showers and lockers. (N) lobby retail area. *Change of Use. 4,091, (N) MECHANICAL ROOMS, (N) UTILITY ROOM, (N) OFFICE, (N) RETAIL STORAGE ROOM, (N) ROOFTOP EQUIPMENT F1 - FIRE SPRINKLERS, 27 HEADS (ISSUED 8/8/16) F2 - FIRE ALARM, 7 DEVICES (ISSUED 8/24/16) Permit Description: BUILDING
Work Class: TI (Retail)
Proposed Use: Commercial (Alter)
Permit Number: BD-2016-256982
Status: Finaled
Valuation: $280,000.00
Contractor Company:

Contractor Name:

Date: 5/26/2016
Permit Type: BD
Description: Add 2 new guardrails for Mechanical equipment use. At south elevation, one at Lower roof level and one at Main roof level, total of 50 LF.

Permit Description: BUILDING
Work Class: Façade Improvement
Proposed Use: Commercial (Alter)
Permit Number: BD-2016-258198
Status: Finaled
Valuation: $1,000.00
Contractor Company:

Contractor Name:
6112727- 8 Page 229
DRAFT
5233 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 6/4/2015
Permit Type: FA
Description: T.I. remodel of ground floor - New offices, conference room, break room, trash room. 9,500 square feet area. Revision 1: Lower 1st floor and install sound ceiling.

Rv#2-Modifications to create a conference room in open office area and to convert storage room to office with wall alterations(nonstructural). Note: Agent for owner requested Revisions 1and 2 go under HG's Roofing & Building F1- FIRE SPRINKLER: INSTALL 20 (N) HEADS AND RELOCATE 20 (E) HEADS Fire AlarmUpgrade existing fire alarm system to bring TI to code.

Permit Description: FIRE ALARM
Work Class: System (New)
Proposed Use: Fire Alarm
Permit Number: FA-2015-253764
Status: Expired
Valuation: $5,000.00
Contractor Company:

Contractor Name:

Date: 4/9/2015
Permit Type: BD
Description: T.I. remodel of ground floor - New offices, conference room, break room, trash room. 9,500 square feet area. Revision 1: Lower 1st floor and install sound ceiling.

Rv#2-Modifications to create a conference room in open office area and to convert storage room to office with wall alterations(nonstructural). Note: Agent for owner requested Revisions 1and 2 go under HG's Roofing & Building F1- FIRE SPRINKLER: INSTALL 20 (N) HEADS AND RELOCATE 20 (E) HEADS Revision #3 - Change of contractor REVISION #4: ADA RAMP AND MECHANICAL SHAFT DETAIL (ISSUED 5/27/16)
Permit Description: BUILDING
Work Class: Converted
Proposed Use: Commercial (Alter)
Permit Number: BD2014250322
Status: Finaled
Valuation: $609,000.00
Contractor Company:

Contractor Name:
6112727- 8 Page 230
DRAFT
5234 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 11/13/2014
Permit Type: EL
Description: Interior basement improvement, and install a new electrical panel for entire building 333-345 S. B St. Refer to BD2013-246899.

Permit Description: ELECTRICAL
Work Class:

Proposed Use: Electrical
Permit Number: EL2013247128
Status: Finaled
Valuation: $60,000.00
Contractor Company:

Contractor Name:

Date: 9/12/2014
Permit Type: BD
Description: Create a new window opening in rear of building to include structural work Permit Description: BUILDING
Work Class: Alteration
Proposed Use: Commercial
Permit Number: BD2014249710
Status: Finaled
Valuation: $100,000.00
Contractor Company:

Contractor Name:
6112727- 8 Page 231
DRAFT
5235 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 10/29/2013
Permit Type: EL
Description: 11/13/14; Customer requested permit be cancelled. Work under #247128. Install 9 electrical sub-panels on 1st floor only. Refer and associated to BD2013-246899 for main TI work.

Permit Description: ELECTRICAL
Work Class: Repair
Proposed Use: Commercial
Permit Number: EL2013247857
Status: Withdrawn
Valuation: $20,000.00
Contractor Company:

Contractor Name:

Date: 6/4/2012
Permit Type: BD
Description: Interior tenant improvement work. Basement level work for electrical panel upgrade. Add gas meter at rear of building. "Asia Pacific Groups". 858 square area. "Shell Permit"
333-345 B St
F1; Install new fire sprinkler system (212 heads). Transfer sprinklers to BD2011- 239750 due to main permit.

F2; Install new fire alarm system (11 devices).

Permit Description: BUILDING
Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: BD2011241480
Status: Issued
Valuation: $72,500.00
Contractor Company:

Contractor Name:
6112727- 8 Page 232
DRAFT
5236 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 3/2/2012
Permit Type: BD
Description: Interior TI with Change of Use of 2nd floor space from retail & ballet studio use to general office use - 11,715 sf "Asia Pacific Groups".

RV-1; Revision to trash & recycling enclosure on the 1st floor & provide staging area. Construct new gate. Enlarged Conference room #203 (relocated double door). Provide Bike Parking area for office use on 2nd floor.

F1; Install new fire sprinkler system (212 heads). Refer to BD2011-241480 for sprinkler fees and review.

Rv#2-Modifications to trash enclosure.

Permit Description: BUILDING
Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: BD2011239750
Status: Finalled
Valuation: $489,500.00
Contractor Company:

Contractor Name:

Date: 10/18/2011
Permit Type: BD
Description: Install sub-floor for 2nd floor office T.I. work. Refer to BD2011-239750 Permit Description: BUILDING
Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: BD2011241151
Status: Finalled
Valuation: $30,000.00
Contractor Company:

Contractor Name:
6112727- 8 Page 233
DRAFT
5237 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 4/18/2011
Permit Type: BD
Description: Exterior facade remodel of ground floor building - Remove (e) store front and canopy and infill 2nd west windows, new store front and awning.

Permit Description: BUILDING
Work Class: Alteration, Remodel
Proposed Use: Retail sales, basement and ground floor
Permit Number: BD2011239244
Status: Finalled
Valuation: $84,300.00
Contractor Company:

Contractor Name:

Date: 3/17/2010
Permit Type: BD
Description: Install 6 skylights to office building.

Permit Description: BUILDING
Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: BD2010236564
Status: Finalled
Valuation: $7,000.00
Contractor Company:

Contractor Name:

Date: 11/21/2007
Permit Type: SP
Description: Install 2 temporary banners to structure. 1 banner is 30 sq.ft. and 1 banner is 20 sq.ft. Valid from 12/01/07 to 01/31/08.

Permit Description: SIGN
Work Class: Alteration, Remodel
Proposed Use: Retail sales, basement and ground floor
Permit Number: SP2007230270
Status: Issued
Valuation: $200.00
Contractor Company:

Contractor Name:
6112727- 8 Page 234
DRAFT
5238 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 5/7/2004
Permit Type:

Description: INTERIOR TI WORK/5,000 SF/ REMOVE PARTITION WALLS/VACANT ON 1ST AND 2ND FLR./NO STRUCT.

Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 217835
Status: Finalled
Valuation: $20,000.00
Contractor Company:

Contractor Name:

Date: 4/9/2004
Permit Type:

Description: INTERIOR SOFT DEMOLITION/NON- STRUCTURAL/2ND FLR./5,000 SF/ Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 217518
Status: Finalled
Valuation: $35,000.00
Contractor Company:

Contractor Name:
6112727- 8 Page 235
DRAFT
5239 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
345 S B ST
Date: 10/16/2018
Permit Type: FR
Description: F1: Modify (E) fire sprinkler system - Install 56 (N) heads.

TI BD2018-267547
Permit Description: FIRE
Work Class: Family
Proposed Use: Fire Permit - Fire Sprinkler - Comm / Multi Permit Number: FR-2018-269208
Status: Issued
Valuation: $18,400.00
Contractor Company:

Contractor Name: CALIFORNIA FIRE SYSTEMS INC
Date: 9/26/2018
Permit Type: BD
Description: Commercial TI Office at 2nd and 3rd floors for "FOSSIL" (12,908 sf). Install (N) partitions, finishes, and MEPs to create (N) open office area, labs, conference rooms, phone rooms, game room, reception, and copy rooms.

Fire sprinkler, fire alarm, and signs to be deferred.

See Revision #4 to BD-2017-262763 for deferred smoke/draft curtain and closely spaced sprinklers
Permit Description: BUILDING
Work Class: TI (Office)
Proposed Use: Commercial (Alter)
Permit Number: BD-2018-267547
Status: Finaled
Valuation: $663,471.20
Contractor Company:

Contractor Name: DEACON CONSTRUCTION LLC
6112727- 8 Page 236
DRAFT
5240 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 2/25/2015
Permit Type: SP
Description: Sign on wall at entrance, 6 SF. "Playphone" Permit Description: SIGN
Work Class: Converted
Proposed Use: Commercial (Alter)
Permit Number: SP2015252689
Status: Finaled
Valuation: $1,247.00
Contractor Company:

Contractor Name:
359 S B ST
Date: 4/15/2008
Permit Type: BD
Description: 359 - 365 SOUTH B STREET - RE-ROOF: TEAR-OFF EXISTING BUILT-UP ROOFING, INSTALL FLINTLASTIC SA ROOF w/PARAPET WALLS (4,000-SF)
Permit Description: BUILDING
Work Class: Alteration, Remodel
Proposed Use: Restaurant
Permit Number: bd2008231268
Status: Finalled
Valuation: $24,100.00
Contractor Company:

Contractor Name:
6112727- 8 Page 237
DRAFT
5241 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 10/11/2006
Permit Type: SP
Description: Install a Temporary Banner on Awning for Display 10-15-6 thru 11-15-6 Install temporary banner to structure.

Permit Description: SIGN
Work Class: Alteration, Remodel
Proposed Use: Retail sales, basement and ground floor
Permit Number: SP2006226742
Status: Issued
Valuation: $100.00
Contractor Company:

Contractor Name:

Date: 10/11/2006
Permit Type: SP
Description: Install Temporary Banner on Awning for Display From 11-15-6 thru 12-15-6 Install temporary banner to structure.

Permit Description: SIGN
Work Class: Alteration, Remodel
Proposed Use: Retail sales, basement and ground floor
Permit Number: SP2006226743
Status: Issued
Valuation: $100.00
Contractor Company:

Contractor Name:

Date: 5/20/2002
Permit Type:

Description: TEMPORARY BANNER FOR "BEAN STREET COFFEE"
Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 209703
Status: Issued
Valuation: $0.00
Contractor Company:

Contractor Name:
6112727- 8 Page 238
DRAFT
5242 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 4/5/2002
Permit Type:

Description: INTERIOR TI/"BEAN STREET COFFEE"/624 SQ.FT./COM.TI.

Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 208477
Status: Finalled
Valuation: $52,700.00
Contractor Company:

Contractor Name:
365 S B ST
Date: 10/19/2006
Permit Type: EL
Description: Install a Dedicated 20 amp 120 V for new Fire Alarm System Add/Replace/Repair sub-panel to structure.

Permit Description: ELECTRICAL
Work Class: Alteration, Remodel
Proposed Use: Restaurant
Permit Number: EL2006226831
Status: Finalled
Valuation: $800.00
Contractor Company:

Contractor Name:
6112727- 8 Page 239
DRAFT
5243 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 5/16/2005
Permit Type:

Description: INSTALLATION OF FIRE SPRINKLER SYSTEM IN BASEMENT AREA ONLY FOR "PANCHO VILLAS"
Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 221277
Status: Finalled
Valuation: $12,400.00
Contractor Company:

Contractor Name:

Date: 9/24/1998
Permit Type: BLD
Description: DEMOLITION, Demolition + removal of existing building Permit Description: Building Permit
Work Class: Building Permit
Proposed Use:

Permit Number: BLD98-1422
Status: Cancelled
Valuation: $0.00
Contractor Company:

Contractor Name: DOW BUILDERS
6112727- 8 Page 240
DRAFT
5244 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
401 S B ST
Date: 12/4/2014
Permit Type: BD
Description: Change of use from existing vacant space (formerly a retail furniture store) to restaurant use; 4,146sf "TOMATINA". PA13-009. Related to exterior work shown on BD2013-0248420. S1 - Sign Installation: Install 3 (N) illuminated signs - 2 wall signs (32.72 sq ft each) & 1 projecting sign (12.25 sq ft). F2 - Fire Alarm; Instal 6 (N) devices. F1-Fire sprinklers system. 44 heads. "Tomatina" F3-Fire suppression system.(UL300-hood and duct) "Tomatina"
Permit Description: BUILDING
Work Class: Alteration
Proposed Use: Commercial
Permit Number: BD2013248421
Status: Finaled
Valuation: $520,000.00
Contractor Company:

Contractor Name:

Date: 11/12/2014
Permit Type: PL
Description: Remove and replace gas manifold to 2 commercial spaces("Roosters" and "Tomatina"
Permit Description: PLUMBING
Work Class: Repair
Proposed Use: Commercial
Permit Number: PL2014251736
Status: Finaled
Valuation: $2,000.00
Contractor Company:

Contractor Name:
6112727- 8 Page 241
DRAFT
5245 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 7/17/2014
Permit Type: BD
Description: Exterior facade improvements including relocation of windows & doors, addition of sun shades, and extension of parapet. PA13-009. (Related to interior TI work in BD2013-248421.) Revision RV-1: New alcove for new gas meters in exterior wall.

New wood frame infill replacing existing non-structural masonry infill removed at existing opening.

Permit Description: BUILDING
Work Class: Alteration
Proposed Use: Commercial
Permit Number: BD2013248420
Status: Finaled
Valuation: $200,000.00
Contractor Company:

Contractor Name:

Date: 7/15/2009
Permit Type: BD
Description: Interior tenant improvement work. Interior demolition of walls Vacant space. 470 square feet area (Combining 302 4th Ave space with 401 So. B St.) Revision #1- Revise wall length and built new rampPermit Description: BUILDING Work Class: Alteration, Remodel
Proposed Use: Retail sales, basement and ground floor
Permit Number: BD2009233932
Status: Finalled
Valuation: $24,158.00
Contractor Company:

Contractor Name:
6112727- 8 Page 242
DRAFT
5246 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 3/1/2004
Permit Type:

Description: SIGN PERMIT FOR "BENEFICIAL" 2 SETS OF ILLUMINATED WALL LETTERS ON RACEWAYS 35SF/26SF
Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 216857
Status: Issued
Valuation: $18,900.00
Contractor Company:

Contractor Name:
405 S B ST
Date: 8/5/2014
Permit Type: FP
Description: Install fire sprinklers system for shell space and hair design spaces. 60 heads.

Install underground piping. Fire welding inspection included.

Permit Description: FIRE
Work Class: Alteration
Proposed Use: Commercial
Permit Number: FP2014250713
Status: Finaled
Valuation: $40,500.00
Contractor Company:

Contractor Name:
6112727- 8 Page 243
DRAFT
5247 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 11/15/2013
Permit Type: BD
Description: Interior tenant improvement; 1,126sf. "ROOSTERS Men's Grooming Center" RV1; REPLACING STEEL STUDS WITH WOOD STUDS. RV-2; Relocate electrical subpanel from restroom to hallway. "ROOSTER Men's Grooming Center".

Permit Description: BUILDING
Work Class: Alteration
Proposed Use: Commercial
Permit Number: BD2013247007
Status: Finaled
Valuation: $175,000.00
Contractor Company:

Contractor Name:
407 S B ST
Date: 12/21/2018
Permit Type: BD
Description: Commercial Facade Improvement/Window Replacement: Replace 12 (E) windows with 23 windows (11 new) with (N) structural. Replace 3 (E) doors, same sizes and locations.
407, 409, 411 S B St.

Permit Description: BUILDING
Work Class: Façade Improvement
Proposed Use: Commercial (Alter)
Permit Number: BD-2018-269925
Status: Expired Plan Check
Valuation: $35,000.00
Contractor Company:

Contractor Name:
6112727- 8 Page 244
DRAFT
5248 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 9/22/2015
Permit Type: BD
Description: Convert (E) Frozen Yogurt store into Hawaiian restaurant, "POKEATERY" (837 SF).

Replace (E) sink, associated Electrical and Plumbing. No facade improvements.

Permit Description: BUILDING
Work Class: TI (Restaurant)
Proposed Use: Commercial (Alter)
Permit Number: BD-2015-254693
Status: Finaled
Valuation: $50,000.00
Contractor Company:

Contractor Name:

Date: 1/31/2008
Permit Type: BD
Description: Interior tenant improvement work. 1,074 square feet. Office use to restaurant use (yogurt shop). "Yogurtouille"
R1: Revision to show Wet-Waste area, HC parking/exiting Permit Description: BUILDING
Work Class: Alteration, Remodel
Proposed Use: Restaurant
Permit Number: BD2007230486
Status: Finalled
Valuation: $60,000.00
Contractor Company:

Contractor Name:
6112727- 8 Page 245
DRAFT
5249 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 1/11/2008
Permit Type: EL
Description: UPGRADE MAIN ELECTRICAL PANEL TO 3, 200-AMP METERS FOR 407, 409, 411 B

ST BUSINESSES
Permit Description: ELECTRICAL
Work Class: Alteration, Remodel
Proposed Use: Retail sales, basement and ground floor
Permit Number: EL2008230584
Status: Finalled
Valuation: $10,000.00
Contractor Company:

Contractor Name:
409 S B ST
Date: 8/24/2006
Permit Type: BD
Description: Interior TI for "Susans Salon" 1300SF- On 1st and 2nd floor-INSTALL TWO (2) SHAMPOO AND FOUR (4) PEDICURE SPA WITH A NEW ADA ACCESSIBLE RESTROOM.

Permit Description: BUILDING
Work Class: Alteration, Remodel
Proposed Use: Retail sales, basement and ground floor
Permit Number: BD2006225723
Status: Finalled
Valuation: $55,770.00
Contractor Company:

Contractor Name:
6112727- 8 Page 246
DRAFT
5250 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 6/14/2006
Permit Type: MH
Description: Replace A/C unit. Replace Carrier 90,000 btu A/C unit Permit Description: MECHANICAL
Work Class: Repair
Proposed Use: Offices
Permit Number: MH2006225447
Status: Finalled
Valuation: $15,450.00
Contractor Company:

Contractor Name:
501 S B ST
Date: 2/2/2012
Permit Type: PL
Description: Install new backflow line on main water service line of commercial building.

Permit Description: PLUMBING
Work Class: Repair
Proposed Use: Retail sales, basement and ground floor
Permit Number: PL2012242075
Status: Finalled
Valuation: $2,150.00
Contractor Company:

Contractor Name:
6112727- 8 Page 247
DRAFT
5251 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
505 S B ST
Date: 9/23/2014
Permit Type: fp
Description: Install (N) Ansul System over (E) hood.

Permit Description: FIRE
Work Class: Alteration
Proposed Use: Commercial
Permit Number: fp2014251208
Status: Finaled
Valuation: $2,000.00
Contractor Company:

Contractor Name:

Date: 10/23/2013
Permit Type: MH
Description: Install a new exhaust duct & roof fan to the existing hood. "RAVIOLI HOUSE". 5/28/14: Owner requested extension (see letter dated 5/28/14) Permit Description: MECHANICAL
Work Class: Repair
Proposed Use: Commercial
Permit Number: MH2013247796
Status: Finaled
Valuation: $2,000.00
Contractor Company:

Contractor Name:
6112727- 8 Page 248
DRAFT
5252 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 9/14/2006
Permit Type: PL
Description: "Replace/Repair gas piping to structure. 1-1/4" line gas line. "Ravioli House" Permit Description: PLUMBING
Work Class: Alteration, Remodel
Proposed Use: Retail sales, basement and ground floor
Permit Number: PL2006226455
Status: Finalled
Valuation: $2,000.00
Contractor Company:

Contractor Name:
507 S B ST
Date: 4/4/2012
Permit Type: PL
Description: Install new Backflow device in front of building. (1.5"), (no encroachment permit).

May demo concrete on sidewalk and install a cage.

Permit Description: PLUMBING
Work Class: Repair
Proposed Use: Other
Permit Number: pl2012242570
Status: Finalled
Valuation: $4,045.00
Contractor Company:

Contractor Name:
6112727- 8 Page 249
DRAFT
5253 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
517 S B ST
Date: 11/5/2019
Permit Type: MEP
Description: Replace 1 (E) rooftop HVAC package unit and reconnect to (E) utilities.

Permit Description: COMBO
Work Class: Mechanical
Proposed Use:

Permit Number: MEP-2019-273815
Status: Issued
Valuation: $10,505.00
Contractor Company:

Contractor Name: BAYSIDE HEATING AND AIR COND INC
Date: 8/24/2009
Permit Type: SP
Description: Remove (E) face sign for Chiropractic Office of 5.5sf to new face sign of 5sf Permit Description: SIGN
Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: SP2009234422
Status: Issued
Valuation: $400.00
Contractor Company:

Contractor Name:

Date: 1/27/2006
Permit Type:

Description: FACE SIGN FOR "BACK IN SHAPE CHIROPRACTIC" SUITE A (5.5 SF) Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 223992
Status: Issued
Valuation: $600.00
Contractor Company:

Contractor Name:
6112727- 8 Page 250
DRAFT
5254 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 9/29/2005
Permit Type:

Description: T/O AND INSTALL INSTALL BUILT-UP ROOF, CAPS SHEET SURFACE, NO TORCHDOWN Permit Description:

Work Class: Repair
Proposed Use: Offices
Permit Number: 223053
Status: Finalled
Valuation: $7,500.00
Contractor Company:

Contractor Name:

Date: 4/7/2005
Permit Type:

Description: INSTALL SET OF NON ILLUMINATED CHANNEL LETTER SIGN FOR "CENTRAL MARKET"
Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 221199
Status: Issued
Valuation: $2,600.00
Contractor Company:

Contractor Name:

Date: 2/9/2005
Permit Type:

Description: INSTALL HOOD & DUCT SYSTEM/ 1 CYCLINDER/"CENTRAL MARKET" Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 218411
Status: Finalled
Valuation: $114,700.00
Contractor Company:

Contractor Name:
6112727- 8 Page 251
DRAFT
5255 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
521 S B ST
Date: 3/3/2020
Permit Type: BD
Description: Tenant Improvement for "Wheel Works"- remove (1) existing above ground automotive lift, and replace with (1) new above ground 2-post lift (approx 60 SF).

Permit Description: BUILDING
Work Class: TI (Retail)
Proposed Use: Commercial (Alter)
Permit Number: BD-2020-275249
Status: Under Review
Valuation: $5,700.00
Contractor Company:

Contractor Name: EDWARDS AND SONS EQUIPMENT SERVICE INC Date: 2/26/2001
Permit Type:

Description: REMOVE (E) BUR AND REPLACE WITH BUR, CAPSHEET (156SQ) Permit Description:

Work Class: Repair
Proposed Use: Offices
Permit Number: 205003
Status: Finalled
Valuation: $37,245.00
Contractor Company:

Contractor Name:
6112727- 8 Page 252
DRAFT
5256 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
601 S B ST
Date: 9/24/2001
Permit Type:

Description: T/O, REROOF W/ TAR AND GRAVEL. 25SQ
Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 207271
Status: Issued
Valuation: $6,000.00
Contractor Company:

Contractor Name:
606 S B ST
Date: 7/23/2007
Permit Type: BD
Description: Remove existing tar & cap roof down it wood deck. Also install Certainteed #MN-B4 built up roof assembly w/ a cod star energy cap ( title 24 compliant) and using "48"SQ w/ a class "A" roofing.

Permit Description: BUILDING
Work Class: Repair
Proposed Use: Apartments
Permit Number: BD2007229148
Status: Finalled
Valuation: $32,000.00
Contractor Company:

Contractor Name:
6112727- 8 Page 253
DRAFT
5257 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
629 S B ST
Date: 7/11/2019
Permit Type: MEP
Description: Install (N) rooftop A/C unit. Install (N) equipment platform.

Permit Description: COMBO
Work Class: Mechanical
Proposed Use:

Permit Number: MEP-2019-272225
Status: Issued
Valuation: $15,818.00
Contractor Company:

Contractor Name: IZMIRIAN ROOFING AND SHEET METAL
Date: 6/22/2000
Permit Type:

Description: TEAR OFF AND RE-ROOF W/ BUILT- UP AND TILE ROOF.

Permit Description:

Work Class: Repair
Proposed Use: Offices
Permit Number: 202327
Status: Finalled
Valuation: $5,000.00
Contractor Company:

Contractor Name:

Date: 6/21/2000
Permit Type:

Description: STOREFRONT FACADE(INCLUDES AWNINGS & RE-TILE/RE-STUCCO) Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 201005
Status: Finalled
Valuation: $70,000.00
Contractor Company:

Contractor Name:
6112727- 8 Page 254
DRAFT
5258 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
631 S B ST
Date: 11/6/2014
Permit Type: PL
Description: Replace Sewerline under building. Install 2 (N) cleanouts Permit Description: PLUMBING
Work Class: Repair
Proposed Use: Commercial
Permit Number: pl2014251696
Status: Issued
Valuation: $4,000.00
Contractor Company:

Contractor Name:

Date: 1/2/2001
Permit Type:

Description: INSTALLATION OF 3X3 BLADE SIGN FOR "KATHY'S KREATIVE KAKES" Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 204146
Status: Finalled
Valuation: $1,000.00
Contractor Company:

Contractor Name:
6112727- 8 Page 255
DRAFT
5259 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
633 S B ST
Date: 10/25/2001
Permit Type:

Description: INTERIOR TI- HANDICAP BATHROOM AND SHEETROCK Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 207152
Status: Finalled
Valuation: $20,000.00
Contractor Company:

Contractor Name:

Date: 1/2/2001
Permit Type:

Description: INSTALLATION OF 3X3 BLADE SIGN FOR "SAN MATEO TV" Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 204147
Status: Issued
Valuation: $1,000.00
Contractor Company:

Contractor Name:
6112727- 8 Page 256
DRAFT
5260 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
635 S B ST
Date: 3/2/2017
Permit Type: BD
Description: PUT INSULATION IN 150 SQ FT ATTIC SPACE ABOVE UNIT #3.

Permit Description: BUILDING
Work Class: Repair
Proposed Use: Multi-Family (Alter/Repair)
Permit Number: BD-2017-261615
Status: Finaled
Valuation: $500.00
Contractor Company:

Contractor Name:

Date: 2/2/2015
Permit Type: BD
Description: T.I. - Add (N) partition walls to construction 4 (N) rooms. (N) electrical & lighting, (N) mechanical. 952 SF
Permit Description: BUILDING
Work Class: Converted
Proposed Use: Commercial (Alter)
Permit Number: BD2015252207
Status: Finaled
Valuation: $49,189.80
Contractor Company:

Contractor Name:
6112727- 8 Page 257
DRAFT
5261 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 12/1/2014
Permit Type: BD
Description: Tenant Improvement work. 1.062 SF, Upgrade accessible restroom, new HVAC and electrical, new water heater.

Permit Description: BUILDING
Work Class: Alteration
Proposed Use: Commercial
Permit Number: BD2014251884
Status: Finaled
Valuation: $35,000.00
Contractor Company:

Contractor Name:

Date: 8/25/2014
Permit Type: BD
Description: Return shell space to core and shell space. Vacant space.

Permit Description: BUILDING
Work Class: Alteration
Proposed Use: Commercial
Permit Number: BD2014250930
Status: Issued
Valuation: $4,000.00
Contractor Company:

Contractor Name:

Date: 11/26/2012
Permit Type: PL
Description: Remove and replace sewer line (4") cast, approx. 18 ft and install a clean-out valve for the Everyday Beijing Restaurant.

Permit Description: PLUMBING
Work Class: Repair
Proposed Use: Single Family Dwelling
Permit Number: pl2012244742
Status: Issued
Valuation: $2,300.00
Contractor Company:

Contractor Name:
6112727- 8 Page 258
DRAFT
5262 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 3/26/2010
Permit Type: BD
Description: Commercial T.I. (916 SF) for new nail salon. " Relaxing Nails and Spa" Permit Description: BUILDING
Work Class: Alteration, Remodel
Proposed Use: Retail sales, basement and ground floor
Permit Number: BD2010236202
Status: Finalled
Valuation: $35,000.00
Contractor Company:

Contractor Name:

Date: 12/18/2009
Permit Type: PL
Description: Replace/Repair existing sewer lateral line and clean-out on private and public property with encroachment permit. Emergency repair due to rupture in pipe.

Permit Description: PLUMBING
Work Class: Repair
Proposed Use: Restaurant
Permit Number: PL2009236018
Status: Issued
Valuation: $2,000.00
Contractor Company:

Contractor Name:
6112727- 8 Page 259
DRAFT
5263 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
637 S B ST
Date: 5/13/2020
Permit Type: MEP
Description: Replace sewer line from bathroom to main and install cleanout (32' of pipe) for "Everyday Beijing Chinese Restaurant". NO Work on public right-of-way.

Permit Description: COMBO
Work Class: Plumbing
Proposed Use:

Permit Number: MEP-2020-275537
Status: Issued
Valuation: $4,000.00
Contractor Company:

Contractor Name:

Date: 10/13/2004
Permit Type:

Description: TEMPORARY BANNER/VALID FOR 30 DAYS/"GRAND OPENING"/3'X12'/ Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Retail sales, basement and ground floor
Permit Number: 219564
Status: Finalled
Valuation: $50.00
Contractor Company:

Contractor Name:
6112727- 8 Page 260
DRAFT
5264 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 1/2/2001
Permit Type:

Description: INSTALLATION OF 3X3 BLADE SIGN FOR "B PADILLA'S BBQ" Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 204148
Status: Finalled
Valuation: $1,000.00
Contractor Company:

Contractor Name:
639 S B ST
Date: 8/1/2001
Permit Type:

Description: TEMP BANNER FOR TIBET RUGS. 2'X9'
Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 206644
Status: Issued
Valuation: $160.00
Contractor Company:

Contractor Name:

Date: 1/2/2001
Permit Type:

Description: INSTALLATION OF 3X3 BLADE SIGN FOR "HUE AND CRY SECURITY" Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 204149
Status: Finalled
Valuation: $1,000.00
Contractor Company:

Contractor Name:
6112727- 8 Page 261
DRAFT
5265 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS

S CLAREMONT ST
308 S CLAREMONT ST
Date: 9/17/2014
Permit Type: BD
Description: Re-roof: Remove existing tar and gravel roof down to wood deck. Install CertainTeed GNB4 built-up roof assembly.

Permit Description: BUILDING
Work Class: Repair
Proposed Use: Commercial
Permit Number: BD2014251169
Status: Finaled
Valuation: $18,900.00
Contractor Company:

Contractor Name:
330 S CLAREMONT ST
Date: 10/22/2014
Permit Type: BD
Description: Modification to (E) Cell site in (E) radome at rooftop. R/R (3) panel antennas. Add 3 (N) equipment boxes at rooftop in (E) lease area.

Permit Description: BUILDING
Work Class: Alteration
Proposed Use: Commercial
Permit Number: bd2014249798
Status: Finaled
Valuation: $30,000.00
Contractor Company:

Contractor Name:
6112727- 8 Page 262
DRAFT
5266 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 1/14/2014
Permit Type: BD
Description: Modification to existing wireless telecom facility. Includes the remodel of 3 existing panel antennas and the installation of 3 new panel antennas with radome. "Sprint" All roof-mounted installation.

Permit Description: BUILDING
Work Class: Alteration
Proposed Use: Commercial
Permit Number: BD2012243379
Status: Finaled
Valuation: $45,000.00
Contractor Company:

Contractor Name:

Date: 2/15/2001
Permit Type:

Description: TELECOMMUNICATION CELL SITE. EQUIPMENT @ GROUND LEVEL AND ANTENNAE @ ROOF LEVEL.

Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 204570
Status: Finalled
Valuation: $50,000.00
Contractor Company:

Contractor Name:
6112727- 8 Page 263
DRAFT
5267 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
397 S CLAREMONT ST
Date: 1/6/2009
Permit Type: FP
Description: F6-New Kitchen Hood & Duct Fire Suppression System for "La Chapina " restaurant.

Permit Description: FIRE
Work Class: Alteration, Remodel
Proposed Use: Restaurant
Permit Number: FP2008233438
Status: Finalled
Valuation: $989.00
Contractor Company:

Contractor Name:

Date: 10/9/2008
Permit Type: BD
Description: CHANGE OF USE FROM RETAIL TO RESTAURANT: "LA CHAPINA" INTERIOR IMPROVEMENTS (1,470-SF)
Permit Description: BUILDING
Work Class: Alteration, Remodel
Proposed Use: Restaurant
Permit Number: BD2008232033
Status: Finalled
Valuation: $75,558.00
Contractor Company:

Contractor Name:
6112727- 8 Page 264
DRAFT
5268 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
415 S CLAREMONT ST
Date: 7/28/2008
Permit Type: MH
Description: Replace furnace(50 BTUs) to San Mateo Japanese Community Center.

Permit Description: MECHANICAL
Work Class: Repair
Proposed Use: Offices
Permit Number: MH2008232183
Status: Issued
Valuation: $6,500.00
Contractor Company:

Contractor Name:

Date: 6/4/2008
Permit Type: BD
Description: T/O; Re-roof with Class"A" 30-yr. composition elk shingle to pitched roof to commercial building. Install conglas #ND-34-G built-up roofing assembly to flat roof. 13 squares.

Permit Description: BUILDING
Work Class: Repair
Proposed Use: Offices
Permit Number: BD2008231724
Status: Finalled
Valuation: $8,400.00
Contractor Company:

Contractor Name:
6112727- 8 Page 265
DRAFT
5269 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS

S ELLSWORTH AVE
323 S ELLSWORTH AVE
Date: 6/19/2015
Permit Type: EL
Description: Install 2 dual charging stations on ground floor in "Central Parking" garage.

Permit Description: ELECTRICAL
Work Class: Alter/Repair Per Fixture
Proposed Use: Electrical
Permit Number: EL-2015-253980
Status: Expired
Valuation: $7,600.00
Contractor Company:

Contractor Name:
325 S ELLSWORTH AVE
Date: 3/7/2012
Permit Type: sp
Description: Temporary banner "Store Closing, Everything must be sold". 3/8/12 - 5/7/12.

Permit Description: SIGN
Work Class: Repair
Proposed Use: Other
Permit Number: sp2012242322
Status: Issued
Valuation: $60.00
Contractor Company:

Contractor Name:
6112727- 8 Page 266
DRAFT
5270 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
329 S ELLSWORTH AVE
Date: 12/16/2014
Permit Type: BD
Description: (N) Awning at front elevation.

Permit Description: BUILDING
Work Class: Alteration
Proposed Use: Commercial
Permit Number: BD2014249416
Status: Issued
Valuation: $1,800.00
Contractor Company:

Contractor Name:

Date: 3/13/2014
Permit Type: SP
Description: Install temporary banner(3'x10') to structure. "Grand Opening" sign. Valid from March 3, 2014 to April 2, 2014.

Permit Description: SIGN
Work Class: Alteration
Proposed Use: Commercial
Permit Number: SP2014249178
Status: Issued
Valuation: $50.00
Contractor Company:

Contractor Name:
6112727- 8 Page 267
DRAFT
5271 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 12/13/2013
Permit Type: BD
Description: Change of use from retail to restaurant "Gyu-Kaku Restaurant". Facade modifications 3,205 sf F1; Fire sprinkler system; 116 heads. "Gyu-Kaku Restaurant". F2; Fire alarm system; 5 devices. "Gyu-Kaku Restaurant". F3; Fire suppression system; hood & duct ansul "Gyu-Kaku Restaurant". S1; Install (1) illuminated channel letter sign. "Gyu-Kaku".

Permit Description: BUILDING
Work Class: Alteration
Proposed Use: Commercial
Permit Number: bd2013245205
Status: Finaled
Valuation: $400,700.00
Contractor Company:

Contractor Name:

Date: 1/27/2012
Permit Type: SP
Description: Temporary banner "Store Closing, Everything must be sold". 1/30/12 - 2/29/12.

Permit Description: SIGN
Work Class: Alteration, Remodel
Proposed Use: Apartments
Permit Number: SP2012241951
Status: Issued
Valuation: $60.00
Contractor Company:

Contractor Name:
6112727- 8 Page 268
DRAFT
5272 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 2/16/2010
Permit Type: SP
Description: Install temporary banner to structure. 4'X12'(48 SQ.FT AREA). "Rug Auction".

Valid from 2-16-2010 to 3-15-2010. Heritage Rugs
Permit Description: SIGN
Work Class: Repair
Proposed Use: Retail sales, basement and ground floor
Permit Number: SP2010236377
Status: Issued
Valuation: $50.00
Contractor Company:

Contractor Name:

Date: 6/10/2004
Permit Type:

Description: NON-ILLUMINATED WALL SIGN/50SF =4'X12.5'/"HERITAGE FINE ORIENTAL RUG..." Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 218174
Status: Issued
Valuation: $3,926.00
Contractor Company:

Contractor Name:

Date: 3/27/2003
Permit Type:

Description: T/O & INSTALL CONGLAS SPEC ND-24A CAP, 1 BASA-2PLY AND 1 MINERAL

SURFACED CAPSHEET
Permit Description:

Work Class: Repair
Proposed Use: Offices
Permit Number: 213231
Status: Finalled
Valuation: $16,845.00
Contractor Company:

Contractor Name:
6112727- 8 Page 269
DRAFT
5273 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
414 S ELLSWORTH AVE
Date: 4/1/2002
Permit Type:

Description: CONVERT (E) BATHROOM TO STORAG E. REMOVE (E) TOILET & LEGALIZ E ELECTRIC WATER HEATER.

Permit Description:

Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: 209101
Status: Finalled
Valuation: $200.00
Contractor Company:

Contractor Name:
420 S ELLSWORTH AVE
Date: 7/9/2004
Permit Type:

Description: T/O;RE-ROOF W/ TORCH-DOWN;PLY BASE;AND GRANULATED MODIFIED BITUMEN TO COM.BLDG/45 SQ.

Permit Description:

Work Class: Repair
Proposed Use: Offices
Permit Number: 218534
Status: Finalled
Valuation: $18,000.00
Contractor Company:

Contractor Name:
6112727- 8 Page 270
DRAFT
5274 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
440 S ELLSWORTH AVE
Date: 4/20/2017
Permit Type: BD
Description: CHANGE FROM (E) FOOT MASSAGE SPA TO (N) PERMANENT MAKEUP AND SKINCARE SERVICE: (4) (N) ROOMS WITH DOORS; RELOCATE OR REMOVE (E)

LIGHTS PER NEW WALL CONFIGURATION, ROOMS WILL BE FOR SKINCARE AND EYELASH SERVICE ONLY, NO MECHANICAL WORK, 2 (N) LAVATORIES REQUIRED IN ROOM #1 AND ROOM #2 PER SMC HEALTH DEPT
Permit Description: BUILDING
Work Class: TI (Retail)
Proposed Use: Commercial (Alter)
Permit Number: BD-2017-261969
Status: Finaled
Valuation: $18,401.20
Contractor Company:

Contractor Name: LING WEI CONSTRUCTION INC
Date: 7/16/2014
Permit Type: BD
Description: Interior TI and change of use from office to foot massage for "Foot Massage Spa".

Remodel of 400sf to include (2) new walls one in front for reception area and another in back, upgrade electrical and lighting and relocate (e) bathroom door and replace bathrooms sink.

Permit Description: BUILDING
Work Class: Alteration
Proposed Use: Commercial
Permit Number: BD2014249777
Status: Finaled
Valuation: $4,000.00
Contractor Company:

Contractor Name:
6112727- 8 Page 271
DRAFT
5275 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 4/13/2011
Permit Type: BD
Description: Interiorn remodel to spilt (e) office into 2-spaces (close off wall) and remodel and enlarge existing bathroom.

Permit Description: BUILDING
Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: BD2011239559
Status: Finalled
Valuation: $12,800.00
Contractor Company:

Contractor Name:
480 S ELLSWORTH AVE
Date: 9/7/2011
Permit Type: SP
Description: Relocate Existing "Manpower" sign due to tenant relocating a couple of suites down
Permit Description: SIGN
Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: SP2011240805
Status: Finalled
Valuation: $500.00
Contractor Company:

Contractor Name:
6112727- 8 Page 272
DRAFT
5276 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 10/16/2006
Permit Type: SP
Description: Reface Existing Sign (Brand Identity Change) and remove to wall signs -- apprx 47 sq ft
Permit Description: SIGN
Work Class: Alteration, Remodel
Proposed Use: Offices
Permit Number: SP2006226666
Status: Finalled
Valuation: $5,000.00
Contractor Company:

Contractor Name:

S RAILROAD AVE
360 S RAILROAD AVE
Date: 11/1/2017
Permit Type: FS
Description: F3: Underground fire service.

T.I. Shell Remodel and T.I. 3,883 SF: Permit # 260979
Permit Description: FIRE SPRINKLER
Work Class: Underground Service
Proposed Use: Fire Sprinkler
Permit Number: FS-2017-264832
Status: Expired
Valuation: $3,500.00
Contractor Company:

Contractor Name: CALIFORNIA FIRE SYSTEMS INC
6112727- 8 Page 273
DRAFT
5277 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 9/22/2017
Permit Type: FA
Description: F1: INSTALL FIRE ALARM SYSTEM (18 DEVICES).

T.I. Shell Remodel and T.I. 3,883 SF (BD-2016-260979).

Demo permit # 260980
F1: Fire Sprinkler. Install 95 (N) heads. (FS-2017-263826).

DEFERRED SUBMITTALS: GLAZING CALCS, UNDERGROUND FIRE SERVICE, FIRE ALARM, EXTERIOR CANOPY.

Permit Description: FIRE ALARM
Work Class: System (New)
Proposed Use: Fire Alarm
Permit Number: FA-2017-264339
Status: Finaled
Valuation: $7,489.00
Contractor Company:

Contractor Name: Deacon Construction
Date: 8/22/2017
Permit Type: FS
Description: F1: Fire Sprinkler. Install 95 (N) heads.

R1: UNDERGROUND LOCATION HAS CHANGE TO OPPOSITE SIDE OF THE BUILDING (ISSUED 8/22/17).

R2: Relocate main fire lines. Revise # of heads to 68.

T.I. Shell Remodel and T.I. 3,883 SF: Permit # 260979
Permit Description: FIRE SPRINKLER
Work Class: New, Non Residential
Proposed Use: Fire Sprinkler
Permit Number: FS-2017-263826
Status: Finaled
Valuation: $23,500.00
Contractor Company:

Contractor Name: CALIFORNIA FIRE SYSTEMS INC
6112727- 8 Page 274
DRAFT
5278 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 7/27/2017
Permit Type: BD
Description: T.I. Shell Remodel and T.I. 3,883 SF: (N) STOREFRONT, (N) BARNDOOR, (N) SKYLIGHTS, 2 (N) RESTOOMS, (N) KITCHENETTE, (N) STAIRS, (N) INTERIOR PARTITIONS, MEP INCLUDED Revision #1: extended 491SF on 2nd floor. Revise stairs (#1), revise ceiling, revise ramp and stairs (#2) at entry, revise entry door to store front entrance. F1: Fire Sprinkler. Install 95 (N) heads. DEFERRED SUBMITTALS: GLAZING CALCS, Demo permit # 260980 F1: INSTALL FIRE ALARM SYSTEM (18 DEVICES). ISSUED 9/22/17 REVISION #2: REVISED SLAB ON GRADE DETAIL - ROCK AND VAPOR NOT REQUIRED (ISSUED ON 9/27/17) REVISION #3:

DEFERRED SUBMITTAL FOR CANOPY ISSUED 3/28/18 Revision 4: Deferred NFRC ratings for glazing (ISSUED 5/7/18) F3: Underground fire service. OTC 11/1/17 Permit Description: BUILDING
Work Class: TI (Office)
Proposed Use: Commercial (Alter)
Permit Number: BD-2016-260979
Status: Finaled
Valuation: $224,823.60
Contractor Company:

Contractor Name:

Date: 7/12/2017
Permit Type: BD
Description: Soft Demo to interior partitions. T.I permit # 260979 Permit Description: BUILDING
Work Class: TI (Office)
Proposed Use: Commercial (Alter)
Permit Number: BD-2016-260980
Status: Finaled
Valuation: $8,000.00
Contractor Company:

Contractor Name:
6112727- 8 Page 275
DRAFT
5279 of 11211
Year Uses Source

ADJOINING PROPERTY FINDINGS
Date: 11/13/2014
Permit Type: BD
Description: T/O; Re-roof with tar and gravel(1-base, 2-ply) and 1-layer modified capsheet to commercial building. 30 squares.

Permit Description: BUILDING
Work Class: Repair
Proposed Use: Commercial
Permit Number: BD2014251755
Status: Finaled
Valuation: $23,900.00
Contractor Company:

Contractor Name:
616 S RAILROAD AVE
Date: 11/8/2012
Permit Type: BD
Description: T/O; Re-roof with tar and gravel to commercial building. 12 squares. No structural work or torch-down.

Permit Description: BUILDING
Work Class: Repair
Proposed Use: Warehouses
Permit Number: BD2012244614
Status: Finalled
Valuation: $5,000.00
Contractor Company:

Contractor Name:
6112727- 8 Page 276
DRAFT
5280 of 11211

GLOSSARY
General Building Department concepts
. ICC: The International Code Council. The governing body for the building/development codes used by all jurisdictions who’ve adopted the ICC guidelines. MOST of the US has done this. Canada, Mexico, and other countries use ICC codes books and guides as well. There are a few states who have added guidelines to the ICC codes to better fit their needs. For example, California has added seismic retrofit requirements for most commercial structures.
. Building Department (Permitting Authority, Building Codes, Inspections Department, Building and Inspections): This is the department in a jurisdiction where an owner or contractor goes to obtain permits and inspections for building, tearing down, remodeling, adding to, re-roofing, moving or otherwise making changes to any structure, Residential or Commercial.
. Jurisdiction: This is the geographic area representing the properties over which a Permitting Authority has responsibility.
. GC: General Contractor. Usually the primary contractor hired for any Residential or Commercial construction work.
. Sub: Subordinate contracting companies or subcontractors. Usually a “trades” contractor working for the GC.

These contractors generally have an area of expertise in which they are licensed like Plumbing, Electrical, Heating and Air systems, Gas Systems, Pools etc. (called “trades”). . Journeymen: Sub contractors who have their own personal licenses in one or more trades and work for different contracting companies, wherever they are needed or there is work. .
.

HVAC (Mechanical, Heating & Air companies): HVAC = Heating, Ventilation, and Air Conditioning.

ELEC (Electrical, TempPole, TPole, TPower, Temporary Power, Panel, AMP Change, Power Release):

Electrical permits can be pulled for many reasons. The most common reason is to increase the AMPs of power in an electrical power panel. This requires a permit in almost every jurisdiction. Other commons reason for Electrical permits is to insert a temporary power pole at a new construction site. Construction requires electricity, and in a new development, power has yet to be run to the lot. The temporary power pole is usually the very first permit pulled for new development. The power is released to the home owner when construction is complete and this sometimes takes the form of a Power Release permit or inspection. .
.
“Pull” a permit: To obtain and pay for a building permit. .

CBO: Chief Building Official
Planning Department: The department in the development process where the building /structural plans are reviewed for their completeness and compliance with building codes . Zoning Department: The department in the development process where the site plans are reviewed for their compliance with the regulations associated with the zoning district in which they are situated. . Zoning District: A pre-determined geographic boundary within a jurisdiction where certain types of structures are permitted / prohibited. Examples are Residential structure, Commercial/Retail structures, Industrial/Manufacturing structures etc. Each zoning district has regulations associated with it like the sizes of the lots, the density of the structures on the lots, the number of parking spaces required for certain types of structures on the lots etc.
.
.

PIN (TMS, GIS ID, Parcel#): Property Identification Number and Tax Map System number. .

State Card (Business license): A license card issued to a contractor to conduct business.

Building Inspector (Inspector): The inspector is a building department employee that inspects building construction for compliance to codes.
. C.O.: Certificate of Occupancy. This is the end of the construction process and designates that the owners now have permission to occupy a structure after its building is complete. Sometimes also referred to as a Certificate of Compliance.

DRAFT
5281 of 11211

GLOSSARY
Permit Content Definitions
. Permit Number: The alphanumerical designation assigned to a permit for tracking within the building department system. Sometimes the permit number gives clues to its role, e.g. a "PL" prefix may designate a plumbing permit.
. Description: A field on the permit form that allows the building department to give a brief description of the work being done. More often than not, this is the most important field for EP’s to find clues to the prior use(s) of the property.
. Permit Type: Generally a brief designation of the type of job being done. For example BLDG-RES, BLDGCOM, ELEC, MECH etc.

Sample Building Permit Data
Date: Nov 09, 2000
Permit Type: Bldg -
New Permit Number: 101000000405
Status: Valuation: $1,000,000.00
Contractor Company: OWNER-BUILDER
Contractor Name:

Description: New one store retail (SAV-ON) with drive-thru pharmacy. Certificate of Occupancy.

DRAFT
5282 of 11211

APPENDIX J

REGULATORY AGENCY FILES
DRAFT
5283 of 11211

CITY OF SAN MATEO
Application for Building Alteration Permit
1937
Application is hereby made to the City of San Mateo for permission to-site or.qicqszeiree demolish, a S0-1/4",gt cee,ani 94 Sited; on Lot No fr Block No.,,ed Subdivision ria"? zgee- c...Cepterretz. situated on --4-9t," --5Xj -44-47 ant-- in accordance with the plans and specifications submitted herewith. itcq , - -2 s street,
The building law shall be complied with in the alteration of the building, whether otherwise specified or not. op
Estimated cost of work, $. •4/N Building to be used as by families.

Write plainly Full Description of Work to be Done if Specifications are Not Submitted a%avlet nerA Se;7cre "
277 fra 14447Plea re .4 6 0.0ci
egateert/e zio cal41.-7as 4--eil a* /- 0~Oen ete9 7e C?-5. 9 Awn c'e Zet,:e7
There shall be no encroachments upon the street or sidewalk I hereby agree to save, indemnify and keep harmless the City of San Mateo against all liabilities, judgments, costs and expenses which may in any wise accrue against said city in consequence of the granting of this permit, or from the use or occupancy of any sidewalk, street or sub-sidewalk placed by virtue thereof\ and will in all things strictly comply with the conditions of this permit, and the Building Law.

Architect
Address
Builder 74:".10-- gin arecnig -
Ay Alf v re-v4vemr-jr4C
Owner 6'7 / rat la AI
Address ..-'7240z eine
By.
(NOTE—The owner's name must be signed by himself or by his Architect or authorized agent.) Applicant must indicate in ink correctly and distinctly on the back of this sheet, a diagram of the lot with street, alleys, location of existing building on the lot, if any, and location and dimensions of proposed buildings. Plans and specifications must be fastened together.

DRAFT
5284 of 11211
de„
_
ll R ' Pi Approved Th.:133
7 19
<2127
7- cc
—a:Ca—, -
Building Inspector.-a"
IHMLIS

CITY OF SAN MATEO

APPLICATION OF
rciter-A--
Ay-c-•••-•
°Lae "
building
Locationz5" P- 4,
Referred to BA914.1117Serr
19 (12
)-3
DRAFT
5285 of 11211
:a-ASSE•
•
BLDG.

PERMIT No
Building Inspector's Field Record

CITY OF SAN MATEO

DATE ISSUE
BUILDING 4 FEE
PERMIT
No
FLOOR
AREA VALUATIONS ar Z-4,20
LOCATION 0 OF STRUCTURE 'eS20. 3 St. AVE
NUMBER

OUTLETS FEE S
LOT —EFLOCK
No 1'-
C)
Iii No CoprrRAcTo 10 MAIL
ADDRESS III SUBDIVISION Ia
City TEL

OCCUPANCY

CLAS PERMIT
NO
0 SETBACK:
to
FRONT FT.. REAR FT NUMBER
NO, OF FIXTURE4 FEE $
STORM.%
HEIGHT
S. AREA FRONT. CONTRACTOR

OF LOT AGE ZONE MAIL

ADORES C)

30. FT ta IN FEET
NIAL4 p
1%1;411v:inn;
r. syn .' 1 CITY TEL
MAIL
1321 Rth An. to PLUMBING

PERMIT NO
NO.

ADDRESS Fix FEE 5_

GAS APPLIANCE

PERMIT NO
NO. 0
CITY Bei 7_". nut TEL
..

Fix FEE S—
re

SEWER CONNECTION YES NO I
Iii NAME Llittinuroc, IT. Smith
a
Pd
DRESS
AtL
AD 1321 6th Ave.

CONTRACTO
MML 7 ADORES.; 7
fa
Cm, Belmont TEL B. CITY TEL

80. 11 5m.2.47
DRAFT
5286 of 11211
BUILDING DEPARTMENT, CITY OF SAN MATEO BUILDING DEPT: COPY csAti APPLICATION FOR BUILDIN Ce
( ti
0 HAM
drA _ , A___,,L.,. ) •.4.1 a..

ADDRESS 13 9 1 _. .tk.k, snAjj2_,
-
' CLASS OF WORK ' , VALUATION
S. .
,C00
BUILDING FEE 45 ' -
REC. By
DATEA6 ..). z
NO./

BUILDING PERM
374 7
• NEW ' • ADDITION REPAIR ' PLAN CHECKING
CITY , r p Till* • ,a R 73 1.1/ ALTERATION , DEMOLISH MOVING DATE ei, h." - .

Issue:sir
'
. 1. /.10 ' . CC 0
113
•
NAME AP/ ' V r-i_44 h _e LI )

ADDRESS
I 5 P. ' i - 6 ci.Ad-C.
, - - SPECIFICATIONS
TOTAL
NOTICE: This permit 'dohs NOT INC UDE any cons action within the public right of way FOUNDATION ., ' EXTERIOR PIERS Attention is particu arly called to the cutting ,dup of s eets t driveways an curbs, making-maw , < sewer, gas or electric connections. Permits must baobtained for all accessory buildings. Certificat I.

Z CI" 6ilL4AM-14,1b MATERIAL of occupancy must . be applied for befo o find-inspection. The building, law'shali be complied„.witi in the erection of the building whether otherwise'specified or not STATE LICEIME NO.
. ,- , TE" •, , 273 Ili WIDTH OF TOP 0
U
Applicant must indicate, below correctly.' and distinctly a diagram Of the lot with street, alleys location of existing building„on -the lot, if any, and locations and dimensionsof proposed build . . • NAME ; WIDTH! OF EOTTOM
ings. Plans and specifications mist be fastened together. ,
-1
. w ADDRESS 1. DEPTH IN OROUN'D j
' .
• I I
i • CITY SIZE - SPACING SPAN - 1. • ' i STREET
< STATE !LICENSE NO ' TEL.

ND
'

GIRDERS
. , .

JOISTS 13T: FL.
.*
,
T. 4. '.

I.
i , sUDDIVISION M
' Terw-t-'all „S`. /14' , 4
P
. . , M
i.,
11/4
'4U
LOT BLOCK / /) .

JOISTS - END rL. ,
SIZE . REAR DEPTH-
. FRONT JOISTS. 3RD FL. I.2a
. ,
STREET (,• Fet s T.. . JOISTS - CEILING . .
../
<
' 0 ...• EXTERIOR-STUDS
-k soy\
4C-s INTERIOR STUDS
INFORMATION' FOR PLANNING COMMISSION- t
, ROOF RAFTERS 'TYPE OF OCCUPANCY, ',
BEARING WALLS SIZE or
BUILDING .. TFCTOIR AivNk. BEARING WALL'S MATERIAL NUMBER OF STORIES , -TOTAL 'HEIGHT . .

OOVER'ING
NO OF ROOMS NO OF FAMILIES ..
,.. , .
.EXTERIOR WALLS
FRONT YARD SETBACK FROM PROPERTY LINE ..

INTERIOR WALLS
.
,
,
FLOORS
REAR TARO . ' :. ..
•- i ' ''NO.
,
' TOILET nob s' ' . NEW CONSTRUCTION ALTERATION I.;
CHANGE OF OCCUPANCY PROM 4 ,.

BATH FLOOR & WAINSCOT ' - TO

RATH FLOOR
,I
BUILDING ZONE ;'
.
., . ... , . . . .

TOILET' Room FL. Be WAINS. .....
'I/STREET —

DESCRIBE WORK PLAINLY IF NO PLANS SUBMITTED
. TOILET ROOM FLOOR
,
7 : .

I
, .arn . g' 0 I 111 P 1.I
r.----....,
IC. 1
, rr
La. e 14 ili s_ , 2,111, r
I ..,
4_.
, - ST SHOWER FLOOR IS WALLS
further
. .. .
.
.

I ..-
- '
l 'hereby acknow edge that I have read this application and state that the above is correct; and I agree to save, indemnifrand keep-harmless he City of Son Mateo against all Itaktildies, ET. SHOWER. F . . LOOR '
i
. judgments, costs and expenses which may in any wise accrue against said city in constquence of the granting of this permit; or fromthe use or ccupency of any sidewalk, street or sub- • '
, .
,
*.
' TOTAL PLUMBING FIXTURES .
. sidewalk placed by virtue thereof, and will m al things strictly comply with the conditions.of this * permit, the Building Low, and zoning ordinances of City of San Mateo. • .

FLUES- r
0 i
FIREPLACE , ' _FL. FURNACE 0 ER ,,,,,,,,,,i- . -

KITCHEN ' WATER HEATER
.

ADDRESS n
I 1 /
ADDRESS .
_ FURNACE , I GAS'. I OIL TS f - IA-.a .....4.1.4 ) a 11614ab:C - APPROVED: c . , .
. .'CITY OF
- SAN MATEO PLANNING COMMISSION . . Appkovecii- . . . City of San Mateo Building Inspector. . ARCHITECT ,
1 P ,
.
. n ' , ')-2)0.44...,a e
ADDRESS , BY y -
'
.By . (-RI -
,
Owner's 'by
authorizedname must be si gra himself
person.

L.. LL.
' •.,
DRAFT
5287 of 11211
BeE)G. PERMIT NO 1P64-8 DATE ISSUED ,n-
•
Building Inspector's Field Record

CITY OF SAN MATEO

BUILDING
tio
VALUATION $ ( WW1 1-4.---FEE $ / E.,0^
LOCATION / n 27: ST.

OF STRUCTURF 'r-"E"'- B Rinciercti AVE.

LOT Ve 4 BLOCK
No 7 No .7
'
Town of San Fate° .
n
_
ILITMLBEER FEES 14-65
CONTRACT0a-Bruna Blocs__ •
MAIL Oan Bruno w ADDRESS SUBDIVISION
PERMIT
r No 67/36-
B.

CLAs^ r usr otores___M:. OCCUP. t., ,
FRONT FT . SIDE- FT REAR- 10 FT SETBACK:

NO. OF
STORIE" 1 HEIGHT 17
OF LOT ' FAVEX5.0.0a-ZONF C-1 AREA
NAM 1. fl- A1
MAIL ADDRESS 2462 Breadwav
CITYRedwood. City - X.al 6.2846 T .
_A
NAM
MAIL
ADORES I. 9
Redwood Cita,
tic_BB 6-1093
CITY.

CD-a 5M 5-49
Misc
No rafif-t
FEE s_24-.A5 •
Z(7:1,T:s 52 . p0Rc- ICC
CONTRACT R Zen Bruno- Elect. -
MAIL San Bruno - - - - ADDRESS
mM 1E4.1 -92t7 1:6: :FE;$
GAS APPLIANCE 0267 Ni0x.

PERMIT NO F •••• FEES 2.00
. - -
SEWER CONNECTION—Y ES ( 1 ) NO (
lit CONTRACTOR— Hardison
--
ADORES
Misc
- sq. FT.
0 DRAFT
5288 of 11211
FINAL INSPECTION . : I
BLDG. INSPECTOR
DAT
BY.

D PECT1ON RECORD
t DATE INSPECTOR REMARKS
.5115.—
yr _
.
&,3
'frna-,-&9
FOUNDATION Y _lot, 6?
\ a FR MING k 4 ' 7- 16. I; '' ./!!eIr" 49 ". il-CROOF Wan a 4 • .22-.St Coxisegt /A-4.9- reatt?

PLUMBING ROUGH

FLUES & FIREPLAC

ELECTRIC WIRING
STUCCO & PLASTESEWER
/2- 0 j — _ .
. -
/ Walmr
fr/ ...• \ 1,5;9::: NI'
,
a
Pirnir,
...1-.11-- .S. at T,..Q Mocvnt t?./ 7
,
.0-1

GAS LINE TEST
....

ELECTRIC FIXTRE U

PLUMBING FIXTURE
FURNAC

WATER HEATER
.:3AS RANG ---
• 4110.4 - - - -
M IM affartatli n/
IMRE
IIIIMMatiall
Pligiaj lit
-..

DRAFT
5289 of 11211
w
Z
" "E PencTitle & Guaranty Co..

App""2462 Broadwa '

CLASS OF WORK VALUATION
$S
SIRLOINS FEE REC. BY
/- X V

BUILDING FERMI
,
.fi 1 9e? ADDITION REPAIR PLAN CHECKING
FEE
DATE
ALTERATION , DEM,OLISH r , MOVING • DATE
cr" Redwood City issuED dot...../ _
TNEc. ... ..., 2 1 000 i
TOTAL
.94g e.

NAME Albert E. Magnuson SPECIFICATIONS 0
I- NOTICE: This permit does NOT INC UDE any construction within the public right of way.

Attention is particularly called to the cutting up of s roots '
' FOUNDATION EXTERIOR , PIERS ' driveways and curbs, making main 12( ADPRE.-1129 Hopkins Ram/ Ave. sewer, gas or elect, c connections. Permits must be obtained for all accessory buildings. Certificate MATERIAL CCI- " Redwood City of occupancy must be applied for befo a final inspection. The building law shall bo complied with in the erection of the building whether otherwise specified or not.

F:I U WIDTH OF TOP - * Applicant muit Ind cate below correct y and distinctly a diagram of the lot with street, alleys, location of existing building on the lo if any, and locations and dimensions of propose d build- STATE Liceresel No. . T n93 r LL: 1 4, i i ‘,./ WIDTH or BOTTOM'
ings. Plans andispecifications must be fastened together. d "m8 Milliam B. MorrYmian

DEPTH IN GROUND
2 A ----614 San Mateo Ave. -1 . I I ' L
I
U

SIZE SPACING SPAN , STREET
CITY -San Bruno .

M STATE LICENSE NO.

T.Ect* -8074
.24 GIRDERS
2 2
""7" . Town of San Mateo JOIsTs • IsT FL. B. ..

IL 11/11 LOT 7 ' BLOCK . 10 JOIsTs - 2NO FL
It.
o
FRONT so REAR 50 DEPTH 110 JOISTS . 9RD FL. Illerfall
JOISTS • CEILING Sit II1 •I I
REET if Bili Street (between 4th
and 5th Ayes. 1ep , I .. EXT OBSTuDs 111111.111111.1
1•241;44t7i*' litat./....,71 1.4 • OR STUDS TUD MI,Ar 1 III a s • II IMMO INFORMATION FOR PLANNING COMMISSION ROOF RAFTERS IL21111 -TYPE OF OCCUPANCY Retail stores (21, BEARING WALLS li
SIZE OF int ., TA
INFe
50 160 FLOOR
TOTAL
P AREA 5 ,000 sq ft, •
•
BEARING WALLS ATER/AL limunus ri • NI III •
NUMBER OF STORIES' 1 TOTALd-lE12MT17 I
•
i
1,,COVERING
NO i II.. OF ROOMS None NO. OF FAMILIES " None EXTERIOR WALLS ELIno
FRONT YARD SET BACK FROM PROPERTY LINE Nnone .

IZ
INTERIOR WALLS • gni. nimaini EMI 11• 111 • 111/1
. .. SIDE .
. None , ROOF FLOORS
j
•i ..

REAR YARD 101 No. BATH ROOMS 1 NO. TOILET ROOMS 1 ...I NEW CONSTRUCTION yeS ALTERATION TILING •
BATH
No
• EMU
in
CHANGE OF OCCUPANCY FROM Nil
FLOOR a WAINSCOT
TO Nil ,

BATH FLOOR
BUILDING ZONE ommeroilflf:7--- _ 0
TOILET ROOM FL. & WAINS. ' STREET
DESCRIBE WORK PLAINLY IF No PLANS SUBMITTED
TOILET ROOM FLOOR .
'
- • ST. SHOWER . FLoOR & WALLS 7 - I I
I hereby acknowledge that I have read this application and state that the above is correct, an ST. SHOWER . FLOOR further I agree to save, indemnify and keep harmless the City of Son Mateo against all liabilities expenses which arinuanywioseapcacrnucey aagainst said city In consequence from use or. ccu Lfudc.mngs of this andexreit o
f any sidewalk, street or sub s'd walk placed by virtue thereof, and will in all things strictly comply with the conditions of this ToTAL- PLUMBING FIXTURES permit, the Building Law, and zoning ordinances of City of San Mateo.

FLUES '
• ILD OWNER FIREPLACE • FL. FURNACE , ,
"...." __/' .../...y. ...• ...4...

KITCHEN WATER HEATER
_

ADDRESS AIDDRESS
4/ •
FURNACE GAS OIL Nog 'IS A.aleicn-1.' , ,...,...-
APPROVED: Approved: city OF SAN MATEO PLANNING COMMISSION . City of San Mateo Building Inspector. - 2; / il
I
By .01.-'er(001
Owner's
authorized
, Lr-"... e
name must e Signe/ Elf
person.
4y hims Atalmess ra
BUILDING DEPARTMENT CITY OF SAN MATEO BUILDING DEPT. COPY APPLICATION FOR BUILDING PERMIT DRAFT
5290 of 11211
PE MIT No 21291 •
Building Inspector's Field Record . •
_srizast.alitittO DATE ISSUED 3-13-52
. 4 VALUATION $ i- B ILNING 50,000 FEE $ 67 ,00
a LOCATION MI h21- h25 - So. B St.AT;
LOT 1 & 8 BLOCK io. No Nct
SusounsioN Town of San mateo
store BLDG. TYRE

FRONT- FT SIDE- FT REAR- FT
NO. OF
STORM.' ' - HEIGHT
AREA
OF Lot FAIRIADR 1CMIZONF Cl & C2 SO. FT. so FT
ift/ NALAF
-

Z MAIL ADORES
' 4
iMF
Burlingame -.. ITT TEL
ix7ie A ,
Oblund & Co
2 a.
•
no-a 5M 7-51
PERMIT Z542
No
NUMBER OUTLET.' FjE S
L3/4U4SC: 4loce. CONTRACTOR • MAIL liur/ingsme ADDRESS
MISC
PLUMBING 11959 No. 9 sari PERMIT No Fix FEE S
GAS APPLIANCE 4,1-b1 No.r , 200
PERMIT NO Fix FEE -.."-- S
SEWER CONNECTraterVIDit:Mr ) NO L._ --/—
CoNTRAcToRarairca=
MAIL ' _ ... _
ADORES
Mtsc
e
La
CC
Ia-1La
MAIL 108 Nzirtle Road !"- ADDRES- S Burlingame Cm/ TEL
a.
odcue. CLAs,
SETBACK:

A. Sorensen & B. Ohlund
La
I-X
Z7.

La
In
'SS 22,10
-Mu seer ía. CoNTRAcTo
Miawe e,
ADS
Mrsc P-4&NnE3
PERMIT 2542 " 2240 - No FEES
NUMBER
• 02 - - FIXTURES
GehaL.:
taseet Metal
DRAFT
5291 of 11211
MAIL Dr"
Misc Er.

Sane
TEL
Building Inspector's Field Record CITY OF SAN MATEO new Store 411/ 3-11=53 DATE ISSUED
23155

PERMIT NO
• E
SI:BUILDING 'ALUATION 20,000. FEES 37.00
LOCATION OF ST Lors P. ifcUilit • 72.—r.t 0.

BLOCK
No NO
Town of San Mateo , -

SUBDIVISION
OCCUR. F now atom?. O CLAsA Us
Z_ SETE/Ask 30
Z No. OF
1 ri. Z FRONT- FT.. SIDE- FT . DI r
< STORIES ...I HEIGHT
IL AREA FLOOR 3200
OF LOT

SO, FT,

AREA ZONF
PERMIT * 4465 — a-- NO
54 11. Fms 10.85 NUMBER OUTLET<
CONTRACTOR Hausser /04c.41‘to,a?•7
lilt65 PERMIT
145 *II
r.

NUMBER
FIXTURE- PoRc
CONTRACTOR Naussor haOw. -
Buaingame
106 So. ItS" St.sr.

MAIL ADDREsq
It

NAME III
MAIL 108 rjrtle Rd.

CITY
ADDREs
Dra
TEL
Ohlund Ccirvany
PLUMBING No.

PERMIT No FIX
GAS APPLIANCE NO.

PERMIT NO FIX
Misc
co:

FEE
• **4 ae‘FEE
•
re
• NAtil
▪ MAIL
ADDREs
Cm"
SEWER CONNEcTicrigumnD NO
CONTRACTOR._. liak..

MAE_ AmoisocEEsiti sicarrate
a D - 5 'yr 7.11
DRAFT
5292 of 11211
TRANS PACIFIC GEOTECHNICAL CONSULTANTS, INC.
• 22 BATTERY STREET. SUITE 888 SAN FRANCISCO, CA 94111-5522 (415) 788-8627 o 1511 RISHELL DRIVE CONCORD, CA 94521 (415) 674-0123
ty.(4641-istis t*
Ctibm-n4-14)
REPORT

GEOTECHNICAL INVESTIGATION

PROPOSED BUILDING ADDITIONS
445 SOUTH B STREET

SAN MATEO, CALIFORNIA
FOR

TALBOT'S
c0o0
mo°10-
tet ° ?'" o
11 1
DRAFT
5293 of 11211
TRANS PACIFIC GEOTECHNICAL CONSULTANTS, INC.
• 22 BATTERY STREET, SUITE 888 SAN FRANCISCO, CA 94111-5522 (415) 788-8627 o 1511 RISHELL DRIVE CONCORD, CA 94521 (415) 674-0123
February 12, 1987
Our Job No. 1208-001
Talbot's
445 South B Street
San Mateo, California 94401
Attention: Mr. Gordon Moore
Gentlemen:

Report
Geotechnical Investigation
Proposed Building Additions
445 South B Street
San Mateo, California
For Talbot's
This report presents the results of our geotechnical investigation for the proposed building additions to the Talbot's store, known as 445 South B Street in San Mateo, California. The Talbot's store complex is located on the northeast corner of the intersection of South B Street and 5th Avenue and bounded in the east by Railroad Avenue.

PROPOSED CONSTRUCTION
We understand that present plan calls for construction of a second floor addition, measuring approximately 70 feet by 80 feet, over the eastern portion of the existing building, and a two-story building addition, measuring approximately 40 feet by 80 feet, covering the existing parking lot which is located to the east of and abutting the existing building. The second floor of the additions will be used for storage space while the first floor of the two-story addition will remain as parking area. The concrete floor slab for the existing building along with the asphaltic concrete pavement for the existing parking lot will not be removed or replaced.

It is our understanding that the existing building is founded on shallow foundation of spread footings which are bottomed at a depth of about 3 feet below the existing floor slab. Footing loads (dead plus live loads) for the existing structure are on the order of 2,000 pounds per square foot.

For the proposed additions, loadings on the footings would be on the order of 3,000 pounds per square foot.

DRAFT
5294 of 11211
Talbot's February 12, 1987

PURPOSE AND SCOPE OF SERVICES
The purpose of the investigation was to evaluate the subsurface soil conditions and to provide recommendations for foundation support of the proposed additions. The scope of our services included a field exploration program of drilling three borings, along with laboratory testing and engineering analyses.

FIELD EXPLORATION AND LABORATORY TESTING
The subsurface conditions were explored by drilling three borings to depths between 4-1/2 feet and 21-1/2 feet with trailer-mounted auger equipment at the locations shown on the Site Plan, Plate 1. Boring I was drilled inside the existing building while Borings 2 and 3 were drilled in the parking lot. The field exploration was performed under the technical direction of one of our engineers who examined and visually classified the soils encountered, maintained a continuous log of borings, and obtained both relatively undisturbed and disturbed soil samples for laboratory examination and testing. Graphical presentation of the soils encountered is presented on the Log of Boring, Plates 2-A and 2-B. An explanation of the nomenclature and symbols used on the Log of Boring is shown on Plate 3, Soil Classification Chart & Key To Test Data. The log of borings show subsurface conditions on the date and at the locations indicated, and it is not warranted that they are representative of subsurface conditions at other times or locations.

Laboratory tests were performed on selected soil samples to correlate the soil properties and to evaluate the engineering characteristics.

Moisture content, dry density, and strength tests, including consolidatedundrained direct shear tests at artificially increased moisture contents to simulate saturation, were performed on selected relatively undisturbed samples. The results of these laboratory tests are presented on the Log of Boring at the appropriate sample locations. A summary of the direct shear test results is presented on Plate 4, Direct Shear Test Data. Sieve analyses were performed to determine the grain size distribution of a sample of sandy soil. The results are shown on Plate 5, Grain-Size Distribution.

SITE AND SUBSURFACE CONDITIONS

SITE CONDITIONS
The site of the proposed construction includes the eastern (rear) portion of the store complex and a paved parking lot, which is located to the east of the store complex and borders Railroad Avenue in the east. The parking lot is relatively level.

TRANS PACIFIC GEOTECHNICAL CONSULTANTS, INC.

DRAFT
5295 of 11211
Talbot's February 12, 1987

SUBSURFACE CONDITIONS
The subsurface soil conditions as indicated by the borings appear to be relatively uniform. Beneath the 4-inch concrete slab in the existing structure and the asphaltic concrete and aggregate base in the parking lot, fill consisting of medium stiff clayey silt was encountered to a depth of about 3 feet below the existing ground surface. Underlying the fill, very stiff natural sandy clay was encountered to depths of 6 and 8 feet in Borings 1 and 2, respectively, and to the depth explored of 4-1/2 feet in Boring 3. Underlying the natural sandy clay, dense gravelly sand was encountered to the depth explored of 21-1/2 feet in Boring 1 and to 15 feet in Boring 2. Underlying the gravelly sand, very stiff sandy clay was encountered to the depth explored of 20-1/2 feet in Boring 2.

Groundwater was not encountered in any of the borings during our field exploration.

TRANS PACIFIC GEOTECHNICAL CONSULTANTS, INC.

DRAFT
5296 of 11211
Talbot's February 12, 1987

DISCUSSION AND RECOMMENDATIONS

GENERAL
Based on the field exploration program, laboratory testing and engineering analyses, it is our opinion that the proposed addition may be developed as planned from a geotechnical engineering standpoint.

Based on the subsurface information from the three borings, it appears that the existing fill was nominally compacted during placement. It is our opinion that the existing near-surface fill, in its present condition, would not provide satisfactory support for the proposed additions. We recommend that the proposed additions be supported on shallow foundation of spread footings bearing in the natural very stiff sandy clay encountered in the borings below the existing fill, at a depth of at least three feet below the existing ground surface. Alternatively, the proposed additions may be supported on shallow foundation bearing in compacted fill, provided that the existing fill is removed and replaced with compacted fill. However, in consideration of the requirements for site preparation to remove and replace the existing fill, it appears more economical to extend the footings below the existing fill, and to derive support in the underlying very stiff natural clayey soil.

FOUNDATION SUPPORT
We recommend that the proposed additions be supported on shallow foundation of spread footings bearing in the very stiff natural sandy clay which was encountered in the borings below the fill at a depth of 3 feet below the existing ground surface.

We recommend that the proposed footing foundation be designed using an allowable bearing value of 3,000 pounds per square foot for dead plus live loads. The allowable bearing pressures may be increased by one-third for wind and seismic loads. Continuous footings should be at least 15 inches wide and isolated spread footings should be at least 24 inches wide. The weight of the foundation concrete below grade may be neglected in computing bearing pressures. For the recommended foundations and bearing values, we estimate that settlement would be about one-half of an inch.

The structures should be designed with seismic factors in mind. We suggest that the footings be tied together to resist seismic effects.

Lateral load resistance for the structure can be developed in friction between the foundation bottom and the supporting subgrade. A frictional coefficient of 0.3 may be used. A passive resistance equal to an equivalent fluid weighing 250 pounds per cubic foot acting against the foundation may be used. Unless the surface is paved, the upper foot of soil should be neglected in computing the passive resistance.

TRANS PACIFIC GEOTECHNICAL CONSULTANTS, INC.

DRAFT
5297 of 11211
Talbot's February 12, 1987
Where additional loading is imposed on the footing foundation of the existing building, we recommend that the foundation be designed in a similar manner as recommended above, provided that the footing foundation is founded on the very stiff natural clayey soil below the fill. In addition, we recommend that the supporting soil for the existing footings be field verified during construction of the additions, and that the existing footings should be extended to bottom in the very stiff natural clayey soil, as necessary.

FLOOR SLAB AND ASPHALTIC CONCRETE PAVEMENT
The existing slab-on-grade floor and the asphaltic concrete pavement are supported on the fill, which in our opinion, was nominally placed without adequate compaction. Based on current practice, removal of the existing fill and replacement with compacted fill would be required; however, in consideration that your current plans do not include the replacement of the existing floor slab and pavement section and that the performance to-date of the existing floor slab and the asphaltic concrete pavement have been satisfactory, we concur with the approach. It should be recognized that the floor slab along with the asphaltic concrete pavement may experience total and differential settlements resulting from the compression of the underlying fill and/or pavement failure resulting from poor subgrade. Consequently, continuous maintenance and/or replacement may be required and should be anticipated.

REPORT LIMITATIONS
Our services have been performed with the usual thoroughness and competence of the engineering profession. No other warranty or representation, either expressed or implied, is included or intended.

The conclusions and recommendations presented in this report are professional opinions based on project criteria and data described in this report, and are intended only for the purpose, site location and project indicated. if there will be a significant change in the project, or if different soils are encountered from those indicated, this office should be notified for evaluation and supplemental recommendations as necessary or appropriate.

Trans Pacific Geotechnical Consultants, Inc. cannot be responsible for the interpretations made by others with regard to foundation support or recommendations presented in this report.

TRANS PACIFIC GEOTECHNICAL CONSULTANTS, INC.
11,
DRAFT
5298 of 11211
Plate 1
Plates 2-A and 2-8
Plate 3
Plate 4
Plate 5
Talbot's February 12, 1987

CLOSURE
It is suggested that our office be consulted during design to answer any questions and provide clarification regarding our report. We request an opportunity to review appropriate portions of the final plans and specifications. Adequate engineering observation and testing should be provided during construction to provide reasonable assurance that pertinent provisions of the plans and specifications are properly carried out.

If you have any questions regarding this report, please contact us.

The following plates are attached and complete this report.

Site Plan
Log of Boring
Soil Classification Chart & Key To Test Data
Direct Shear Test Data
Grain-Size Distribution
Yours very truly,
Trans Pacific Geotechnical Consultants, Inc.

Eddy T. Lau, P.E.

C 019897, Expiration 9/30/89
Robert Y.C. Chew, P.E.

C 034460, Expiration 6/30/87
Project Engineer
(Two copies submitted)
cc: GM Associates (6)
Attention: Mr. George Mock
Shapiro, Okino, Horn and Associates (2)
Attention: Mr. John H. Horn

TRANS PACIFIC GEOTECHNICAL CONSULTANTS, INC.

DRAFT
5299 of 11211
ic, Ht/
'44'47"
1491404.'
r I

PROPOSED

ADDITION

EXISTING PARKING
•
N
\
5th AVENUE
0510 20 30

SCALE FEET SITE PLAN
1(t) ASs41u
4 Warl CdOwyper 4,4‘..o•
yr-o"
0 FFI
a
,
• at 77 . • s.. 1 1 '0 f, " t i 4,"
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r -
e. 40... - =, , .;" — . r . i t ri r -t7
- r®Jr---n STAIR ',WI- D '
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3 ,
- q EH--,. i &.-2 . , , izz
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t- etr,v,tht no," --t,
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F .-: ,16413 Law •ia62; t,
;.;•-•. -rip i PM t3/419t.....t/ re i pa
\ .-ah-ti 1 J
E
II cicr-
- -ay
t . IA& -/alL415

EXISTING SALES
_Fr
-tea //..rt.rat - rrott:
touveyox. - NAG- RECEIVING
(6n4404.4-
p
-
"
9 jAr4 . EWItt“" t*Ottrifo,..e„,,,,LA0=
(IX*
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4- -4444-4 t4A05 ,W-t6 ® —980..art PA.
soLe
Pig* C444 WI' ourtg e
ri
CO
fiesa• AS hien
ALTERATIONS TO:
•IL,VIP•10`
445 S.' ..13 4 ' St., San Mateo, CA.' e
GM ASSOCIATES • AIA • ARCHITECTS
1863 Powell St.. an Fr•nogpoo. CA, S4130
George Mock 781. 2 017
BORING LOCATION TRANS PACIFIC GEOTECHNICAL CONSULTANTS, INC.

DI •C
DRAFT
5300 of 11211

LABORATORY TEST DATA SAMPLING

STRENGTH TEST
DATA
e
b:

MI0,-0
a.

En..,
,
00=
-tht
['I 'S-- U.
„
‘€)
1J
VI
,
ts, I-2. 0 2 w tsi ;A Cn W
C. 1-g
__, .- CC
a t7I
I--
CC ‘2'
CC
le
=
Pj
,
W
2 "11
tit. tCYj 7; 't IlYi IL) T. ‘" T. I- I- in 0 0 2
2 C, a2 I-•
(4 (4 0 2
o
T.
sn.0 tn
15 102 U 11
6 100 U 39
13 118 U 53
10 124 U
50 10 126 U
24 ion
25 BORING 1
DATE DRILLED 1-19-87

SURFACE ELEVATION -
NOTE: Sampling resistance for U sampler
are measured in number of blows
required to drive sampler 12 inches.

Blow counts are for the last 12 inches
(or portion thereof) of a total of the
18 inches penetration of the sampler.

LOG OF BORING
TRANS PACIFIC GEOTECHNICAL CONSULTANTS. INC.
20 in
n SYMBOLS DESCRIPTION
4- nch thick concrete
Dark brown clayey silt with traces
of sand and gravel (medium
stiff) (Fill)
Reddish brown sandy clay with
some gravel and silt ( very
stiff
Brown gravelly sand with some
clay (dense)
(grading to very dense)
Plate 2-A
IT I
DRAFT
5301 of 11211
20 LABORATORY TEST DATA SAMPLING BORING 2
DATE DRILLED 1-19-87
STRENGTH TEST L-Ls LA-I 0 SURFACE ELEVATION -
DMA 1--,
nc
= a.
oc ••:c
in
1-"
1".--1
in-•
t."

1..-
a-
=
L._ Cn
0 C.
cn = is,
.... __. CC
CC 00 0
=
C-n
a
isi OC
='
Vi
LC
in
a
L.,
1 L..
0-. =
w w
z .-“C. 1.- te, °C 00
.. La ,-N
I=1 IL a- ZE
CLCC ,• I-. DC = Ijj 0 0 OC L" C4 = •-n..
•-• in C4 CL. >n n.0 t14 SYMBOLS DESCRIPTION
I.-- in ,C a o- cn in NE a •-• in
— 21/2-inch thick asphaltic concrete
4-inch thick aggregate base
DSCU 500 750
16 16
117
115
U 5 ML Dark brown clayey silt with
traces of sand and gravel
DSCU 1500 1490 17 116
U 23 (medium stiff) (Fill)
XCL Reddish brown to brown sandy cla
16 118 U 47 .-
with some gravel and silt (vet
... . .
\ s stiff)
-'".% Brown gravelly sand with some
•.,
SP
-...clay (dense)
,..'
iii.....

4..
10 122 U 51 Il

4..' 4::
....::
12 113 l t"
U 55
16 114 2'
/ CL Brown sandy clay with traces of
gravel (very stiff)
22 97 U 49 mize,
0 5
0 17 106 7
DSCU 3000 3340 14 118 27
5 BORING 3
DATE DRILLED 1-19-87

SURFACE ELEVATION -
Dark brown clayey silt with
traces of gravel and sand
(medium stiff) (Fill)
Brown sandy clay with some gravel
(very stiff)
\ 2-inch thick asphaltic concrete
4-inch thick aggregate base
NOTE: See Plate 2-A

LOG OF BORING
TFIANS PACIFIC GEOTECHNICAL CONSULTANTS, INC.
co
0 0
cc
0 g—t
Plate 2-B
DRAFT
5302 of 11211
/3
.1.:
4, DESCRIPTION MAJOR DIVISIONS
GYI

WELL-GRADED GRAVELS OR GRAVEL-SAND

MIXTURES, LITTLE OR NO FINES

CLEAN GRAVELS
(LITTLE OR NO FINES)
ta
. w
t. ;7: 1= 1,7. VI .4.-es-" -.1 lg - :4> tu ..., -, -td
. ti i Z2 i; . ‘.
0 tg rA . --.w a ma., . 42
2 0-2 w
i'. • —0
5_ -'41
0 - • 7.
c-t
a ,t1:11
LIJ 1 "
F.. ...2 4 0-.
cc tt o, hs
0 4 r m .
1 V) 1 1- 0 a
m ' .- ec ' ti
< 22 t
i
i
q 2 .".0.l
y - F.
...
o
...
,. ....
..
,-;g

GP POORLY-GRADED GRAVELS OR GRAVEL-SAND

MIXTURES, LITTLE' OR NO FINES ,
GM SILTY GRAVELS. GRAVEL-SAND-SILT

MIXTURES GRAVELS WITH
FINES !APPRECIABLE AMOUNT
OF rums) Go CLAYEY GRAVELS. GRAVEL-SAND-CLAYMIXTURES
S WELL-GRADED SAND OR GRAVELLY SANDS.

LITTLE OR NO FINES CLEAN SANDS
(LITTLE OR NO FINES)
. .
4 .14 2
tgg'4: = id
; 4
CO --''" 4 —
o / g te dg
z tt• •••
< 2 5-n" -1,4 CO .w = ..4 to
. 4 • > '0
2 g = g u

0...

SP POORLY-GRADED SANDS OR GRAVELLY SANDS.

LITTLE OR NO FINES
SM SILTY SANDS. SAND SILT MIXTURES SANDS WITH
FINES
(APPRECIABLE AMOUNT P
S OF FINES) CLAYEY SANDS. SAND-CLAY MIXTURES .

FOIL
INORGANIC SILTS AND VERY FINE SANDS.

ROCK FLOUR. SILTY OR CLAYEY FINE

SANDS OR CLAIEY SILTS WITH SLIGHT

PLASTICITY

SILTS & CLAYS

LIQUID LIMIT LESS THAN SO
. w
. zs•
5 — cd
-
o
4" .

W ,te.; ..
. — > .-
CI 1".
g to'
LU a 7:Da
Z 0 n• V 1
•"' ..
g :I. I'
in m'z
T 5 '"

11.1 X eg
Z ' ti
rs: iicii
2 "
CL

INORGANIC CLAYS OF LOW TO MEDIUM
PLASTICITY. GRAVELLY CLAYS. SANDY
CLAYS. SILTY CLAYS. LEAN CLAYS
M. ORGANIC SILTS AND ORGANIC SILT - CLAYS

OF LOW PLASTICITY
PM
INORGANIC SILTS. MICACEOUS OR

DIATOMACEOUS FINE SANOY OR SILTY

SOILS, ELASTIC SILTS

SILTS & CLAYS

CH LIQUID LIMIT GREATER THAN SO

INORGANIC CLAYS OF HIGH PLASTICITY,

FAT CLAYS

OH ORGANIC CLAYS OF MEDIUM TO HIGH
PLASTICITY. ORGANIC siirs

PT PEAT AND OTHER HIGHLY ORGANIC SOILS HIGHLY ORGANIC SOILS

SOIL CLASSIFICATION CHART
w
z
M ‘
‘t ]
M
C...
c),/:;470:/// 1" 0'4 '
I ,
0 0 20 30 40 , 00 110 70 SO 113 100

LIQUID LIMIT

IN INDICATES DEPTH OF UNDISTURBED SAMPLE
60 INDICATES DEPTH OF DISTURBED SAMPLE
IJ INDICATES DEPTH or SAMPLING ATTEMPT

WITH NO RECOVERY

GI INDICATES DEPTH OF STANDARD PENETRATION TEST
SO
50 tl 40
z
it 50
rt 20
10 PLASTICITY CHART KEY TO SAMPLES
U - Underwater Sampler DSCU - Consolidated Undrained
Sampler driven with 140-pound hammer Direct Shear Test
with 30-inch drop

TYPES OF SOIL SAMPLERS KEY TO TEST DATA

SOIL CLASSIFICATION CHART & KEY TO TEST DATA
TWANSPACIFICGEOTEcHNICALCONSULTANTS,INC.

PLATE 3
DRAFT
5303 of 11211

DIRECT SHEAR TEST DATA
(CONSOLIDATED-UNDRAINED)
BORING
NO.

NORMAL SHEAR

DEPTH PRESSURE STRENGTH
(FEET) (PSF) (PSF)

MOISTURE
CONTENT (%)

NATURAL FINAL

DRY DENSITY
(PCF)

NATURAL FINAL
2 3.5 500 750 16 17 115 117
2 3.5 1500 1490 17 17 116 118
3 3.5 3000 3340 14 16 118 120
NOTE: PSF - POUNDS PER SQUARE FOOT

PCF - POUNDS PER CUBIC FOOT
% - PERCENT
TRANS PACIFIC GFOTECHNICAL CONSULTANTS, INC.

PLATE 4
DRAFT
5304 of 11211
U.S. STANDARD SIEVE SIZE 3
3 IN. 4 IN. NO.4 NO.10 NO20 40 60 100 200 0
10 90
100
4 ft
1 4
1 1
1 1
4 20
30 0
Lu
40 >.

Lu
co
cc
50 Le)
cc
0 60
Lu
70 rc
u.1
cs.
80 I BORING ELEV. SAMPLE LIQUID
LIMIT

PLASTIC

LIMIT CEPTH SYMBOL SOIL CLASSIFICATION KEY
1 151/2 4 SP Gravelly sand with traces of clay
I
I I
1 0 0
90 80
70 60 >-
co
rc 50
LA.

J.-. 40
u.s
30 tai 0.
-71 20
10 0
a
F
z
1000 100

COBBLES
10 1.0 01

GRA N SIZE IN MILLIMETERS

GRAIN-SIZE DISTRIBUTION
(UNIFIED SOIL CLASSIFICATION SYSTEM)

GRAVEL SAND
I COARSE I FINE 1COARSEI MEDIUM FINE

0.01 0.001

SILT OR CLAY
c
DRAFT
5305 of 11211
TRANS PACIFIC GEOTECHNICAL CONSULTANTS, INC.
• 22 BATTERY STREET. SUITE 888 SAN FRANCISCO, CA 94111-5522 (415) 788-8627 o 1511 RISHELL DRIVE CONCORD, CA 94521 (415) 674-0123
ty.(4641-istis t*
Ctibm-n4-14)
REPORT

GEOTECHNICAL INVESTIGATION

PROPOSED BUILDING ADDITIONS
445 SOUTH B STREET

SAN MATEO, CALIFORNIA
FOR

TALBOT'S
c0o0
mo°10-
tet ° ?'" o
11 1
DRAFT
5306 of 11211
TRANS PACIFIC GEOTECHNICAL CONSULTANTS, INC.
• 22 BATTERY STREET, SUITE 888 SAN FRANCISCO, CA 94111-5522 (415) 788-8627 o 1511 RISHELL DRIVE CONCORD, CA 94521 (415) 674-0123
February 12, 1987
Our Job No. 1208-001
Talbot's
445 South B Street
San Mateo, California 94401
Attention: Mr. Gordon Moore
Gentlemen:

Report
Geotechnical Investigation
Proposed Building Additions
445 South B Street
San Mateo, California
For Talbot's
This report presents the results of our geotechnical investigation for the proposed building additions to the Talbot's store, known as 445 South B Street in San Mateo, California. The Talbot's store complex is located on the northeast corner of the intersection of South B Street and 5th Avenue and bounded in the east by Railroad Avenue.

PROPOSED CONSTRUCTION
We understand that present plan calls for construction of a second floor addition, measuring approximately 70 feet by 80 feet, over the eastern portion of the existing building, and a two-story building addition, measuring approximately 40 feet by 80 feet, covering the existing parking lot which is located to the east of and abutting the existing building. The second floor of the additions will be used for storage space while the first floor of the two-story addition will remain as parking area. The concrete floor slab for the existing building along with the asphaltic concrete pavement for the existing parking lot will not be removed or replaced.

It is our understanding that the existing building is founded on shallow foundation of spread footings which are bottomed at a depth of about 3 feet below the existing floor slab. Footing loads (dead plus live loads) for the existing structure are on the order of 2,000 pounds per square foot.

For the proposed additions, loadings on the footings would be on the order of 3,000 pounds per square foot.

DRAFT
5307 of 11211
Talbot's February 12, 1987

PURPOSE AND SCOPE OF SERVICES
The purpose of the investigation was to evaluate the subsurface soil conditions and to provide recommendations for foundation support of the proposed additions. The scope of our services included a field exploration program of drilling three borings, along with laboratory testing and engineering analyses.

FIELD EXPLORATION AND LABORATORY TESTING
The subsurface conditions were explored by drilling three borings to depths between 4-1/2 feet and 21-1/2 feet with trailer-mounted auger equipment at the locations shown on the Site Plan, Plate 1. Boring I was drilled inside the existing building while Borings 2 and 3 were drilled in the parking lot. The field exploration was performed under the technical direction of one of our engineers who examined and visually classified the soils encountered, maintained a continuous log of borings, and obtained both relatively undisturbed and disturbed soil samples for laboratory examination and testing. Graphical presentation of the soils encountered is presented on the Log of Boring, Plates 2-A and 2-B. An explanation of the nomenclature and symbols used on the Log of Boring is shown on Plate 3, Soil Classification Chart & Key To Test Data. The log of borings show subsurface conditions on the date and at the locations indicated, and it is not warranted that they are representative of subsurface conditions at other times or locations.

Laboratory tests were performed on selected soil samples to correlate the soil properties and to evaluate the engineering characteristics.

Moisture content, dry density, and strength tests, including consolidatedundrained direct shear tests at artificially increased moisture contents to simulate saturation, were performed on selected relatively undisturbed samples. The results of these laboratory tests are presented on the Log of Boring at the appropriate sample locations. A summary of the direct shear test results is presented on Plate 4, Direct Shear Test Data. Sieve analyses were performed to determine the grain size distribution of a sample of sandy soil. The results are shown on Plate 5, Grain-Size Distribution.

SITE AND SUBSURFACE CONDITIONS

SITE CONDITIONS
The site of the proposed construction includes the eastern (rear) portion of the store complex and a paved parking lot, which is located to the east of the store complex and borders Railroad Avenue in the east. The parking lot is relatively level.

TRANS PACIFIC GEOTECHNICAL CONSULTANTS, INC.

DRAFT
5308 of 11211
Talbot's February 12, 1987

SUBSURFACE CONDITIONS
The subsurface soil conditions as indicated by the borings appear to be relatively uniform. Beneath the 4-inch concrete slab in the existing structure and the asphaltic concrete and aggregate base in the parking lot, fill consisting of medium stiff clayey silt was encountered to a depth of about 3 feet below the existing ground surface. Underlying the fill, very stiff natural sandy clay was encountered to depths of 6 and 8 feet in Borings 1 and 2, respectively, and to the depth explored of 4-1/2 feet in Boring 3. Underlying the natural sandy clay, dense gravelly sand was encountered to the depth explored of 21-1/2 feet in Boring 1 and to 15 feet in Boring 2. Underlying the gravelly sand, very stiff sandy clay was encountered to the depth explored of 20-1/2 feet in Boring 2.

Groundwater was not encountered in any of the borings during our field exploration.

TRANS PACIFIC GEOTECHNICAL CONSULTANTS, INC.

DRAFT
5309 of 11211
Talbot's February 12, 1987

DISCUSSION AND RECOMMENDATIONS

GENERAL
Based on the field exploration program, laboratory testing and engineering analyses, it is our opinion that the proposed addition may be developed as planned from a geotechnical engineering standpoint.

Based on the subsurface information from the three borings, it appears that the existing fill was nominally compacted during placement. It is our opinion that the existing near-surface fill, in its present condition, would not provide satisfactory support for the proposed additions. We recommend that the proposed additions be supported on shallow foundation of spread footings bearing in the natural very stiff sandy clay encountered in the borings below the existing fill, at a depth of at least three feet below the existing ground surface. Alternatively, the proposed additions may be supported on shallow foundation bearing in compacted fill, provided that the existing fill is removed and replaced with compacted fill. However, in consideration of the requirements for site preparation to remove and replace the existing fill, it appears more economical to extend the footings below the existing fill, and to derive support in the underlying very stiff natural clayey soil.

FOUNDATION SUPPORT
We recommend that the proposed additions be supported on shallow foundation of spread footings bearing in the very stiff natural sandy clay which was encountered in the borings below the fill at a depth of 3 feet below the existing ground surface.

We recommend that the proposed footing foundation be designed using an allowable bearing value of 3,000 pounds per square foot for dead plus live loads. The allowable bearing pressures may be increased by one-third for wind and seismic loads. Continuous footings should be at least 15 inches wide and isolated spread footings should be at least 24 inches wide. The weight of the foundation concrete below grade may be neglected in computing bearing pressures. For the recommended foundations and bearing values, we estimate that settlement would be about one-half of an inch.

The structures should be designed with seismic factors in mind. We suggest that the footings be tied together to resist seismic effects.

Lateral load resistance for the structure can be developed in friction between the foundation bottom and the supporting subgrade. A frictional coefficient of 0.3 may be used. A passive resistance equal to an equivalent fluid weighing 250 pounds per cubic foot acting against the foundation may be used. Unless the surface is paved, the upper foot of soil should be neglected in computing the passive resistance.

TRANS PACIFIC GEOTECHNICAL CONSULTANTS, INC.

DRAFT
5310 of 11211
Talbot's February 12, 1987
Where additional loading is imposed on the footing foundation of the existing building, we recommend that the foundation be designed in a similar manner as recommended above, provided that the footing foundation is founded on the very stiff natural clayey soil below the fill. In addition, we recommend that the supporting soil for the existing footings be field verified during construction of the additions, and that the existing footings should be extended to bottom in the very stiff natural clayey soil, as necessary.

FLOOR SLAB AND ASPHALTIC CONCRETE PAVEMENT
The existing slab-on-grade floor and the asphaltic concrete pavement are supported on the fill, which in our opinion, was nominally placed without adequate compaction. Based on current practice, removal of the existing fill and replacement with compacted fill would be required; however, in consideration that your current plans do not include the replacement of the existing floor slab and pavement section and that the performance to-date of the existing floor slab and the asphaltic concrete pavement have been satisfactory, we concur with the approach. It should be recognized that the floor slab along with the asphaltic concrete pavement may experience total and differential settlements resulting from the compression of the underlying fill and/or pavement failure resulting from poor subgrade. Consequently, continuous maintenance and/or replacement may be required and should be anticipated.

REPORT LIMITATIONS
Our services have been performed with the usual thoroughness and competence of the engineering profession. No other warranty or representation, either expressed or implied, is included or intended.

The conclusions and recommendations presented in this report are professional opinions based on project criteria and data described in this report, and are intended only for the purpose, site location and project indicated. if there will be a significant change in the project, or if different soils are encountered from those indicated, this office should be notified for evaluation and supplemental recommendations as necessary or appropriate.

Trans Pacific Geotechnical Consultants, Inc. cannot be responsible for the interpretations made by others with regard to foundation support or recommendations presented in this report.

TRANS PACIFIC GEOTECHNICAL CONSULTANTS, INC.
11,
DRAFT
5311 of 11211
Plate 1
Plates 2-A and 2-8
Plate 3
Plate 4
Plate 5
Talbot's February 12, 1987

CLOSURE
It is suggested that our office be consulted during design to answer any questions and provide clarification regarding our report. We request an opportunity to review appropriate portions of the final plans and specifications. Adequate engineering observation and testing should be provided during construction to provide reasonable assurance that pertinent provisions of the plans and specifications are properly carried out.

If you have any questions regarding this report, please contact us.

The following plates are attached and complete this report.

Site Plan
Log of Boring
Soil Classification Chart & Key To Test Data
Direct Shear Test Data
Grain-Size Distribution
Yours very truly,
Trans Pacific Geotechnical Consultants, Inc.

Eddy T. Lau, P.E.

C 019897, Expiration 9/30/89
Robert Y.C. Chew, P.E.

C 034460, Expiration 6/30/87
Project Engineer
(Two copies submitted)
cc: GM Associates (6)
Attention: Mr. George Mock
Shapiro, Okino, Horn and Associates (2)
Attention: Mr. John H. Horn

TRANS PACIFIC GEOTECHNICAL CONSULTANTS, INC.

DRAFT
5312 of 11211
ic, Ht/
'44'47"
1491404.'
r I

PROPOSED

ADDITION

EXISTING PARKING
•
N
\
5th AVENUE
0510 20 30

SCALE FEET SITE PLAN
1(t) ASs41u
4 Warl CdOwyper 4,4‘..o•
yr-o"
0 FFI
a
,
• at 77 . • s.. 1 1 '0 f, " t i 4,"
F.
:.:•.)i
r -
e. 40... - =, , .;" — . r . i t ri r -t7
- r®Jr---n STAIR ',WI- D '
.._., ,
__
I-F•err.7 b enr-
3 ,
- q EH--,. i &.-2 . , , izz
,.,..... l• •
:•••••
OtPrItwo
to, • Du.
t- etr,v,tht no," --t,
ItrathA'r
-a
-
I VI./ - rel.tf,Itx‘e ' i ' '::, W , ,,__,
F .-: ,16413 Law •ia62; t,
;.;•-•. -rip i PM t3/419t.....t/ re i pa
\ .-ah-ti 1 J
E
II cicr-
- -ay
t . IA& -/alL415

EXISTING SALES
_Fr
-tea //..rt.rat - rrott:
touveyox. - NAG- RECEIVING
(6n4404.4-
p
-
"
9 jAr4 . EWItt“" t*Ottrifo,..e„,,,,LA0=
(IX*
LT' A • •
co, caps
WIN&
•
teervg, i)
_ _
4- -4444-4 t4A05 ,W-t6 ® —980..art PA.
soLe
Pig* C444 WI' ourtg e
ri
CO
fiesa• AS hien
ALTERATIONS TO:
•IL,VIP•10`
445 S.' ..13 4 ' St., San Mateo, CA.' e
GM ASSOCIATES • AIA • ARCHITECTS
1863 Powell St.. an Fr•nogpoo. CA, S4130
George Mock 781. 2 017
BORING LOCATION TRANS PACIFIC GEOTECHNICAL CONSULTANTS, INC.

DI •C
DRAFT
5313 of 11211

LABORATORY TEST DATA SAMPLING

STRENGTH TEST
DATA
e
b:

MI0,-0
a.

En..,
,
00=
-tht
['I 'S-- U.
„
‘€)
1J
VI
,
ts, I-2. 0 2 w tsi ;A Cn W
C. 1-g
__, .- CC
a t7I
I--
CC ‘2'
CC
le
=
Pj
,
W
2 "11
tit. tCYj 7; 't IlYi IL) T. ‘" T. I- I- in 0 0 2
2 C, a2 I-•
(4 (4 0 2
o
T.
sn.0 tn
15 102 U 11
6 100 U 39
13 118 U 53
10 124 U
50 10 126 U
24 ion
25 BORING 1
DATE DRILLED 1-19-87

SURFACE ELEVATION -
NOTE: Sampling resistance for U sampler
are measured in number of blows
required to drive sampler 12 inches.

Blow counts are for the last 12 inches
(or portion thereof) of a total of the
18 inches penetration of the sampler.

LOG OF BORING
TRANS PACIFIC GEOTECHNICAL CONSULTANTS. INC.
20 in
n SYMBOLS DESCRIPTION
4- nch thick concrete
Dark brown clayey silt with traces
of sand and gravel (medium
stiff) (Fill)
Reddish brown sandy clay with
some gravel and silt ( very
stiff
Brown gravelly sand with some
clay (dense)
(grading to very dense)
Plate 2-A
IT I
DRAFT
5314 of 11211
20 LABORATORY TEST DATA SAMPLING BORING 2
DATE DRILLED 1-19-87
STRENGTH TEST L-Ls LA-I 0 SURFACE ELEVATION -
DMA 1--,
nc
= a.
oc ••:c
in
1-"
1".--1
in-•
t."

1..-
a-
=
L._ Cn
0 C.
cn = is,
.... __. CC
CC 00 0
=
C-n
a
isi OC
='
Vi
LC
in
a
L.,
1 L..
0-. =
w w
z .-“C. 1.- te, °C 00
.. La ,-N
I=1 IL a- ZE
CLCC ,• I-. DC = Ijj 0 0 OC L" C4 = •-n..
•-• in C4 CL. >n n.0 t14 SYMBOLS DESCRIPTION
I.-- in ,C a o- cn in NE a •-• in
— 21/2-inch thick asphaltic concrete
4-inch thick aggregate base
DSCU 500 750
16 16
117
115
U 5 ML Dark brown clayey silt with
traces of sand and gravel
DSCU 1500 1490 17 116
U 23 (medium stiff) (Fill)
XCL Reddish brown to brown sandy cla
16 118 U 47 .-
with some gravel and silt (vet
... . .
\ s stiff)
-'".% Brown gravelly sand with some
•.,
SP
-...clay (dense)
,..'
iii.....

4..
10 122 U 51 Il

4..' 4::
....::
12 113 l t"
U 55
16 114 2'
/ CL Brown sandy clay with traces of
gravel (very stiff)
22 97 U 49 mize,
0 5
0 17 106 7
DSCU 3000 3340 14 118 27
5 BORING 3
DATE DRILLED 1-19-87

SURFACE ELEVATION -
Dark brown clayey silt with
traces of gravel and sand
(medium stiff) (Fill)
Brown sandy clay with some gravel
(very stiff)
\ 2-inch thick asphaltic concrete
4-inch thick aggregate base
NOTE: See Plate 2-A

LOG OF BORING
TFIANS PACIFIC GEOTECHNICAL CONSULTANTS, INC.
co
0 0
cc
0 g—t
Plate 2-B
DRAFT
5315 of 11211
/3
.1.:
4, DESCRIPTION MAJOR DIVISIONS
GYI

WELL-GRADED GRAVELS OR GRAVEL-SAND

MIXTURES, LITTLE OR NO FINES

CLEAN GRAVELS
(LITTLE OR NO FINES)
ta
. w
t. ;7: 1= 1,7. VI .4.-es-" -.1 lg - :4> tu ..., -, -td
. ti i Z2 i; . ‘.
0 tg rA . --.w a ma., . 42
2 0-2 w
i'. • —0
5_ -'41
0 - • 7.
c-t
a ,t1:11
LIJ 1 "
F.. ...2 4 0-.
cc tt o, hs
0 4 r m .
1 V) 1 1- 0 a
m ' .- ec ' ti
< 22 t
i
i
q 2 .".0.l
y - F.
...
o
...
,. ....
..
,-;g

GP POORLY-GRADED GRAVELS OR GRAVEL-SAND

MIXTURES, LITTLE' OR NO FINES ,
GM SILTY GRAVELS. GRAVEL-SAND-SILT

MIXTURES GRAVELS WITH
FINES !APPRECIABLE AMOUNT
OF rums) Go CLAYEY GRAVELS. GRAVEL-SAND-CLAYMIXTURES
S WELL-GRADED SAND OR GRAVELLY SANDS.

LITTLE OR NO FINES CLEAN SANDS
(LITTLE OR NO FINES)
. .
4 .14 2
tgg'4: = id
; 4
CO --''" 4 —
o / g te dg
z tt• •••
< 2 5-n" -1,4 CO .w = ..4 to
. 4 • > '0
2 g = g u

0...

SP POORLY-GRADED SANDS OR GRAVELLY SANDS.

LITTLE OR NO FINES
SM SILTY SANDS. SAND SILT MIXTURES SANDS WITH
FINES
(APPRECIABLE AMOUNT P
S OF FINES) CLAYEY SANDS. SAND-CLAY MIXTURES .

FOIL
INORGANIC SILTS AND VERY FINE SANDS.

ROCK FLOUR. SILTY OR CLAYEY FINE

SANDS OR CLAIEY SILTS WITH SLIGHT

PLASTICITY

SILTS & CLAYS

LIQUID LIMIT LESS THAN SO
. w
. zs•
5 — cd
-
o
4" .

W ,te.; ..
. — > .-
CI 1".
g to'
LU a 7:Da
Z 0 n• V 1
•"' ..
g :I. I'
in m'z
T 5 '"

11.1 X eg
Z ' ti
rs: iicii
2 "
CL

INORGANIC CLAYS OF LOW TO MEDIUM
PLASTICITY. GRAVELLY CLAYS. SANDY
CLAYS. SILTY CLAYS. LEAN CLAYS
M. ORGANIC SILTS AND ORGANIC SILT - CLAYS

OF LOW PLASTICITY
PM
INORGANIC SILTS. MICACEOUS OR

DIATOMACEOUS FINE SANOY OR SILTY

SOILS, ELASTIC SILTS

SILTS & CLAYS

CH LIQUID LIMIT GREATER THAN SO

INORGANIC CLAYS OF HIGH PLASTICITY,

FAT CLAYS

OH ORGANIC CLAYS OF MEDIUM TO HIGH
PLASTICITY. ORGANIC siirs

PT PEAT AND OTHER HIGHLY ORGANIC SOILS HIGHLY ORGANIC SOILS

SOIL CLASSIFICATION CHART
w
z
M ‘
‘t ]
M
C...
c),/:;470:/// 1" 0'4 '
I ,
0 0 20 30 40 , 00 110 70 SO 113 100

LIQUID LIMIT

IN INDICATES DEPTH OF UNDISTURBED SAMPLE
60 INDICATES DEPTH OF DISTURBED SAMPLE
IJ INDICATES DEPTH or SAMPLING ATTEMPT

WITH NO RECOVERY

GI INDICATES DEPTH OF STANDARD PENETRATION TEST
SO
50 tl 40
z
it 50
rt 20
10 PLASTICITY CHART KEY TO SAMPLES
U - Underwater Sampler DSCU - Consolidated Undrained
Sampler driven with 140-pound hammer Direct Shear Test
with 30-inch drop

TYPES OF SOIL SAMPLERS KEY TO TEST DATA

SOIL CLASSIFICATION CHART & KEY TO TEST DATA
TWANSPACIFICGEOTEcHNICALCONSULTANTS,INC.

PLATE 3
DRAFT
5316 of 11211

DIRECT SHEAR TEST DATA
(CONSOLIDATED-UNDRAINED)
BORING
NO.

NORMAL SHEAR

DEPTH PRESSURE STRENGTH
(FEET) (PSF) (PSF)

MOISTURE
CONTENT (%)

NATURAL FINAL

DRY DENSITY
(PCF)

NATURAL FINAL
2 3.5 500 750 16 17 115 117
2 3.5 1500 1490 17 17 116 118
3 3.5 3000 3340 14 16 118 120
NOTE: PSF - POUNDS PER SQUARE FOOT

PCF - POUNDS PER CUBIC FOOT
% - PERCENT
TRANS PACIFIC GFOTECHNICAL CONSULTANTS, INC.

PLATE 4
DRAFT
5317 of 11211
U.S. STANDARD SIEVE SIZE 3
3 IN. 4 IN. NO.4 NO.10 NO20 40 60 100 200 0
10 90
100
4 ft
1 4
1 1
1 1
4 20
30 0
Lu
40 >.

Lu
co
cc
50 Le)
cc
0 60
Lu
70 rc
u.1
cs.
80 I BORING ELEV. SAMPLE LIQUID
LIMIT

PLASTIC

LIMIT CEPTH SYMBOL SOIL CLASSIFICATION KEY
1 151/2 4 SP Gravelly sand with traces of clay
I
I I
1 0 0
90 80
70 60 >-
co
rc 50
LA.

J.-. 40
u.s
30 tai 0.
-71 20
10 0
a
F
z
1000 100

COBBLES
10 1.0 01

GRA N SIZE IN MILLIMETERS

GRAIN-SIZE DISTRIBUTION
(UNIFIED SOIL CLASSIFICATION SYSTEM)

GRAVEL SAND
I COARSE I FINE 1COARSEI MEDIUM FINE

0.01 0.001

SILT OR CLAY
c
DRAFT
5318 of 11211
ic, Ht/
'44'47"
1491404.'
r I

PROPOSED

ADDITION

EXISTING PARKING
•
N
\
5th AVENUE
0510 20 30

SCALE FEET SITE PLAN
1(t) ASs41u
4 Warl CdOwyper 4,4‘..o•
yr-o"
0 FFI
a
,
• at 77 . • s.. 1 1 '0 f, " t i 4,"
F.
:.:•.)i
r -
e. 40... - =, , .;" — . r . i t ri r -t7
- r®Jr---n STAIR ',WI- D '
.._., ,
__
I-F•err.7 b enr-
3 ,
- q EH--,. i &.-2 . , , izz
,.,..... l• •
:•••••
OtPrItwo
to, • Du.
t- etr,v,tht no," --t,
ItrathA'r
-a
-
I VI./ - rel.tf,Itx‘e ' i ' '::, W , ,,__,
F .-: ,16413 Law •ia62; t,
;.;•-•. -rip i PM t3/419t.....t/ re i pa
\ .-ah-ti 1 J
E
II cicr-
- -ay
t . IA& -/alL415

EXISTING SALES
_Fr
-tea //..rt.rat - rrott:
touveyox. - NAG- RECEIVING
(6n4404.4-
p
-
"
9 jAr4 . EWItt“" t*Ottrifo,..e„,,,,LA0=
(IX*
LT' A • •
co, caps
WIN&
•
teervg, i)
_ _
4- -4444-4 t4A05 ,W-t6 ® —980..art PA.
soLe
Pig* C444 WI' ourtg e
ri
CO
fiesa• AS hien
ALTERATIONS TO:
•IL,VIP•10`
445 S.' ..13 4 ' St., San Mateo, CA.' e
GM ASSOCIATES • AIA • ARCHITECTS
1863 Powell St.. an Fr•nogpoo. CA, S4130
George Mock 781. 2 017
BORING LOCATION TRANS PACIFIC GEOTECHNICAL CONSULTANTS, INC.

DI •C
DRAFT
5319 of 11211

LABORATORY TEST DATA SAMPLING

STRENGTH TEST
DATA
e
b:

MI0,-0
a.

En..,
,
00=
-tht
['I 'S-- U.
„
‘€)
1J
VI
,
ts, I-2. 0 2 w tsi ;A Cn W
C. 1-g
__, .- CC
a t7I
I--
CC ‘2'
CC
le
=
Pj
,
W
2 "11
tit. tCYj 7; 't IlYi IL) T. ‘" T. I- I- in 0 0 2
2 C, a2 I-•
(4 (4 0 2
o
T.
sn.0 tn
15 102 U 11
6 100 U 39
13 118 U 53
10 124 U
50 10 126 U
24 ion
25 BORING 1
DATE DRILLED 1-19-87

SURFACE ELEVATION -
NOTE: Sampling resistance for U sampler
are measured in number of blows
required to drive sampler 12 inches.

Blow counts are for the last 12 inches
(or portion thereof) of a total of the
18 inches penetration of the sampler.

LOG OF BORING
TRANS PACIFIC GEOTECHNICAL CONSULTANTS. INC.
20 in
n SYMBOLS DESCRIPTION
4- nch thick concrete
Dark brown clayey silt with traces
of sand and gravel (medium
stiff) (Fill)
Reddish brown sandy clay with
some gravel and silt ( very
stiff
Brown gravelly sand with some
clay (dense)
(grading to very dense)
Plate 2-A
IT I
DRAFT
5320 of 11211
20 LABORATORY TEST DATA SAMPLING BORING 2
DATE DRILLED 1-19-87
STRENGTH TEST L-Ls LA-I 0 SURFACE ELEVATION -
DMA 1--,
nc
= a.
oc ••:c
in
1-"
1".--1
in-•
t."

1..-
a-
=
L._ Cn
0 C.
cn = is,
.... __. CC
CC 00 0
=
C-n
a
isi OC
='
Vi
LC
in
a
L.,
1 L..
0-. =
w w
z .-“C. 1.- te, °C 00
.. La ,-N
I=1 IL a- ZE
CLCC ,• I-. DC = Ijj 0 0 OC L" C4 = •-n..
•-• in C4 CL. >n n.0 t14 SYMBOLS DESCRIPTION
I.-- in ,C a o- cn in NE a •-• in
— 21/2-inch thick asphaltic concrete
4-inch thick aggregate base
DSCU 500 750
16 16
117
115
U 5 ML Dark brown clayey silt with
traces of sand and gravel
DSCU 1500 1490 17 116
U 23 (medium stiff) (Fill)
XCL Reddish brown to brown sandy cla
16 118 U 47 .-
with some gravel and silt (vet
... . .
\ s stiff)
-'".% Brown gravelly sand with some
•.,
SP
-...clay (dense)
,..'
iii.....

4..
10 122 U 51 Il

4..' 4::
....::
12 113 l t"
U 55
16 114 2'
/ CL Brown sandy clay with traces of
gravel (very stiff)
22 97 U 49 mize,
0 5
0 17 106 7
DSCU 3000 3340 14 118 27
5 BORING 3
DATE DRILLED 1-19-87

SURFACE ELEVATION -
Dark brown clayey silt with
traces of gravel and sand
(medium stiff) (Fill)
Brown sandy clay with some gravel
(very stiff)
\ 2-inch thick asphaltic concrete
4-inch thick aggregate base
NOTE: See Plate 2-A

LOG OF BORING
TFIANS PACIFIC GEOTECHNICAL CONSULTANTS, INC.
co
0 0
cc
0 g—t
Plate 2-B
DRAFT
5321 of 11211
/3
.1.:
4, DESCRIPTION MAJOR DIVISIONS
GYI

WELL-GRADED GRAVELS OR GRAVEL-SAND

MIXTURES, LITTLE OR NO FINES

CLEAN GRAVELS
(LITTLE OR NO FINES)
ta
. w
t. ;7: 1= 1,7. VI .4.-es-" -.1 lg - :4> tu ..., -, -td
. ti i Z2 i; . ‘.
0 tg rA . --.w a ma., . 42
2 0-2 w
i'. • —0
5_ -'41
0 - • 7.
c-t
a ,t1:11
LIJ 1 "
F.. ...2 4 0-.
cc tt o, hs
0 4 r m .
1 V) 1 1- 0 a
m ' .- ec ' ti
< 22 t
i
i
q 2 .".0.l
y - F.
...
o
...
,. ....
..
,-;g

GP POORLY-GRADED GRAVELS OR GRAVEL-SAND

MIXTURES, LITTLE' OR NO FINES ,
GM SILTY GRAVELS. GRAVEL-SAND-SILT

MIXTURES GRAVELS WITH
FINES !APPRECIABLE AMOUNT
OF rums) Go CLAYEY GRAVELS. GRAVEL-SAND-CLAYMIXTURES
S WELL-GRADED SAND OR GRAVELLY SANDS.

LITTLE OR NO FINES CLEAN SANDS
(LITTLE OR NO FINES)
. .
4 .14 2
tgg'4: = id
; 4
CO --''" 4 —
o / g te dg
z tt• •••
< 2 5-n" -1,4 CO .w = ..4 to
. 4 • > '0
2 g = g u

0...

SP POORLY-GRADED SANDS OR GRAVELLY SANDS.

LITTLE OR NO FINES
SM SILTY SANDS. SAND SILT MIXTURES SANDS WITH
FINES
(APPRECIABLE AMOUNT P
S OF FINES) CLAYEY SANDS. SAND-CLAY MIXTURES .

FOIL
INORGANIC SILTS AND VERY FINE SANDS.

ROCK FLOUR. SILTY OR CLAYEY FINE

SANDS OR CLAIEY SILTS WITH SLIGHT

PLASTICITY

SILTS & CLAYS

LIQUID LIMIT LESS THAN SO
. w
. zs•
5 — cd
-
o
4" .

W ,te.; ..
. — > .-
CI 1".
g to'
LU a 7:Da
Z 0 n• V 1
•"' ..
g :I. I'
in m'z
T 5 '"

11.1 X eg
Z ' ti
rs: iicii
2 "
CL

INORGANIC CLAYS OF LOW TO MEDIUM
PLASTICITY. GRAVELLY CLAYS. SANDY
CLAYS. SILTY CLAYS. LEAN CLAYS
M. ORGANIC SILTS AND ORGANIC SILT - CLAYS

OF LOW PLASTICITY
PM
INORGANIC SILTS. MICACEOUS OR

DIATOMACEOUS FINE SANOY OR SILTY

SOILS, ELASTIC SILTS

SILTS & CLAYS

CH LIQUID LIMIT GREATER THAN SO

INORGANIC CLAYS OF HIGH PLASTICITY,

FAT CLAYS

OH ORGANIC CLAYS OF MEDIUM TO HIGH
PLASTICITY. ORGANIC siirs

PT PEAT AND OTHER HIGHLY ORGANIC SOILS HIGHLY ORGANIC SOILS

SOIL CLASSIFICATION CHART
w
z
M ‘
‘t ]
M
C...
c),/:;470:/// 1" 0'4 '
I ,
0 0 20 30 40 , 00 110 70 SO 113 100

LIQUID LIMIT

IN INDICATES DEPTH OF UNDISTURBED SAMPLE
60 INDICATES DEPTH OF DISTURBED SAMPLE
IJ INDICATES DEPTH or SAMPLING ATTEMPT

WITH NO RECOVERY

GI INDICATES DEPTH OF STANDARD PENETRATION TEST
SO
50 tl 40
z
it 50
rt 20
10 PLASTICITY CHART KEY TO SAMPLES
U - Underwater Sampler DSCU - Consolidated Undrained
Sampler driven with 140-pound hammer Direct Shear Test
with 30-inch drop

TYPES OF SOIL SAMPLERS KEY TO TEST DATA

SOIL CLASSIFICATION CHART & KEY TO TEST DATA
TWANSPACIFICGEOTEcHNICALCONSULTANTS,INC.

PLATE 3
DRAFT
5322 of 11211

DIRECT SHEAR TEST DATA
(CONSOLIDATED-UNDRAINED)
BORING
NO.

NORMAL SHEAR

DEPTH PRESSURE STRENGTH
(FEET) (PSF) (PSF)

MOISTURE
CONTENT (%)

NATURAL FINAL

DRY DENSITY
(PCF)

NATURAL FINAL
2 3.5 500 750 16 17 115 117
2 3.5 1500 1490 17 17 116 118
3 3.5 3000 3340 14 16 118 120
NOTE: PSF - POUNDS PER SQUARE FOOT

PCF - POUNDS PER CUBIC FOOT
% - PERCENT
TRANS PACIFIC GFOTECHNICAL CONSULTANTS, INC.

PLATE 4
DRAFT
5323 of 11211
U.S. STANDARD SIEVE SIZE 3
3 IN. 4 IN. NO.4 NO.10 NO20 40 60 100 200 0
10 90
100
4 ft
1 4
1 1
1 1
4 20
30 0
Lu
40 >.

Lu
co
cc
50 Le)
cc
0 60
Lu
70 rc
u.1
cs.
80 I BORING ELEV. SAMPLE LIQUID
LIMIT

PLASTIC

LIMIT CEPTH SYMBOL SOIL CLASSIFICATION KEY
1 151/2 4 SP Gravelly sand with traces of clay
I
I I
1 0 0
90 80
70 60 >-
co
rc 50
LA.

J.-. 40
u.s
30 tai 0.
-71 20
10 0
a
F
z
1000 100

COBBLES
10 1.0 01

GRA N SIZE IN MILLIMETERS

GRAIN-SIZE DISTRIBUTION
(UNIFIED SOIL CLASSIFICATION SYSTEM)

GRAVEL SAND
I COARSE I FINE 1COARSEI MEDIUM FINE

0.01 0.001

SILT OR CLAY
c
DRAFT
5324 of 11211
Fr.:r,rkJih St
Bay Tree
Park
t:entra11-'ark
Search Date: 7/15/2020 https://maps.conservation.ca.gov/doggr/wellfinder DRAFT
5325 of 11211
Legend
Gas Transmission PipelinesHazardous Liquid Pipelines
Pipelines depicted on this map represent gastransmission and hazardous liquid lines only. Gasgathering and gas distribution systems are notrepresented.This map should never be used as a substitute forcontacting a one-call center prior to excavationactivities. Please call 811 before any diggingoccurs.Questions regarding this map or its contents can bedirected to [email protected]: GeographicDatum: NAD83Map produced by the Public Viewer application atwww.npms.phmsa.dot.govDate Printed: Jul 20, 2020 DRAFT
5326 of 11211
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Owner DBA
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Owner ID
Home Phone
Work/Business Phone
Mailing Address
Care of
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Make changes/corrections in RED ink or pencil.

INFORMATION CHANGE (date)
OWNERSHIP CHANGE (date)
: __________________
: __________________
: OW0045447
:
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:

TALBOTS CYCLERY

TALBOTS CYCLERY
445 B ST
SAN MATEO, CA 94401
650-931-8120
Not Specified
445 B ST

TALBOTS CYCLERY
SAN MATEO, CA 94401
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FACILITY FILE INFORMATION
Facility ID
Facility Name
Location
Phone
Mailing Address
Care of
FA0052226 :
:
:
:
:
:

TALBOTS CYCLERY
445 B ST
SAN MATEO, CA 94401
650-931-8120
445 B ST

TALBOTS CYCLERY
SAN MATEO, CA 94401
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EPA ID CAL000091257
:

CERS ID:

ACCOUNTS RECEIVABLE FILE INFORMATION
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Permit and Invoice Mail to
Invoice c/o Name
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Mail Invoices to Owner / Facility / Account
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AR0065433
UST(s)
Linked
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TALBOTS CYCLERY
445 B ST
SAN MATEO CA 94401
Anniversary Date: 10/1/2012 Permit Expiration: No Permit Issued 2225 - GENERATES <27 GAL/YEAR PR0072450 EE0003280 - DIRK JENSEN 01 Active Emergency Notification MOORE, GARY
650-931-8120 Ext. Email:
3095 - STORMWATER ANNUAL FEE - INSP FREQ E PR0072451 EE0003280 - DIRK JENSEN 01 Active Emergency Notification MOORE, GARY
650-931-8120 Ext. Email:
6000 - CUPA OVERSIGHT/STATE SURCHARGE PR0072452 EE0003280 - DIRK JENSEN 01 Active Emergency Notification MOORE, GARY
650-931-8120 Ext. Email:

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ENVIRONMENTAL HEALTH

SAN MATEO COUNTY
~ Protecting Our Health and Environment

CERTIFIED UNIFIED PROGRAM AGENCY
PERMIT 15- 1 0 4 8
THIS PERMIT IS ISSUED FOR THE FOLLOWING:
2225 PR0072450 GENERATES <27 GALIYE" R
FACILITY:

TALBOTS CYCLERY
445 B ST
SAN MATEO, CA 94401
DATE ISSUED:

EXPIRATION DATE:
611 /2015
6/112020
OWNER:

TALBOTS TOYLAND OF SAN MATEO, Il'
445 B ST
SAN MATEO CA 9440 I
FA0052226
~ trJ
Q
Heather Forshey, MS, REHS

DIRECTOR, ENVIRONMENTAL HEALTH SERVICES

THIS PERMIT IS NONTRANSFERABLE AND MUST BE POSTED ON-SITE IN A CONSPICUOUS PLACE DRAFT
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ENVIRONMENTAL HEALTH PERMIT CONDITIONS
AI\ MAif.O COUNTY 2000 Alameda de las Pulgas, Ste. 100, San Mateo, CA 94403 Facility Identification Number: FA0052226
In order to maintain the Permit to Operate, the permit holder must comply with the following provisions of related laws concerning management of hazardous materials. Any violation of the conditions may be cause for revocation of the Permit to operate.
a. Hazardous Materials Business Plan Program: California Health and Safety Code, Division 20, Chapter 6.95, Article I and Title 19 Calfornia Code of Regulations.
b. California Accidental Release Prevention Program (Cai-ARP): California Health and Safety Code, Division 20, Chapter

6.95, Article 2 and Title 19, California Code of Regulations. c. Hazardous Waste Generator Program: California Health and Safety Code, Division 20, Chapter 6.5, Articles 1-13, Section 25 100 et seq., and Title 22, California Code of Regulations, Chapter 20 d. Aboveground Petroleum ACT SPCC Plans: California Health and Safety Code, Division 20, Chapter 6.67 and 40 CFR 112.
e. Tiered Permit On-Site Hazardous Waste Treatment: California Health and Safety Code, Division 20, Chapter 6.5 Article 9, and Title 22 California Code of Regulations, Chapter 20 The Permit to Operate is to be maintained on-site and is valid for a period of five (5) years.

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SAN MATEO COUNTY

ENVIRONMENTAL HEALTH DIVISION
Hazardous Materials Program

FACILITY NAME
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To change the current information for a HazMat facility, complete this form and submit by e-mail to the designated Fiscal Representative to update the file. Attach any supporting documentation. Do not print.

RECEIVED AND COMPLETED BY: DATE:

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NAME: TITLE: TELEPHONE:

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CITY: STATE: ZIP:

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Specific Tank or Treatment unit to delete
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UNINCORPORATED
Talbot's Cyclery FA0052226 Oct 17, 2016
415 S B St.

San Mateo
Talbot's Cyclery of San Mateo Inc. / Gary Moore
415 S B St.

Apollonia Helm Digitally signed by Apollonia Helm
DN: cn=Apollonia Helm, o=San Mateo County, ou=Environmental Health, [email protected], c=US Date: 2016.10.17 10:49:59 -07'00'
Talbot's Cyclery
+1 (650) 931-8120
+1 (650) 931-8120
[email protected]
CA 94401 San Mateo CA 94401
Formerly Talbot's Toyland of San Mateo Inc. This business has separated into two entities. One of these is Talbot's Cyclery.

Gary Moore Owner +1 (650) 400-5262
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SAN MATEO COUNTY

ENVIRONMENTAL HEALTH DIVISION
Hazardous Materials Program

FACILITY NAME
FACILITY ADDRESS/PHONE #
CHANGE/REQUEST:

New/Change of Information Form
FACILITY NAME: FACILITY ID: DATE:

INACTIVATE P/E:

ENTER CHANGES IN THE APPROPRIATE FIELDS:

ADDRESS:

CITY:

OWNER NAME:

OWNER ADDRESS:

Inspector's E-SIGNATURE:

FACILITY NAME:

To change the current information for a HazMat facility, complete this form and submit by e-mail to the designated Fiscal Representative to update the file. Attach any supporting documentation. Do not print.

RECEIVED AND COMPLETED BY: DATE:

NOTES:

FOR FISCAL USE ONLY:

VERIFICATION:

TELEPHONE:

TELEPHONE: FAX:

FAX:

EMAIL:

STATE: ZIP: CITY: STATE: ZIP:

ADD PROGRAM ELEMENT:

FACILITY INFORMATION OWNER INFORMATION
CERS ID:

OTHER/NOTES:

ISSUE PERMIT

1. 2.

3. 4.

1. 2.

3. 4.

All Programs

EMERGENCY CONTACT INFORMATION
NAME: TITLE: TELEPHONE:

KNOWN DATE OF CLOSURE:

NEW FACILITY EXISTING FACILITY
CITY: STATE: ZIP:

Facility Address Owner address:

MAILING/BILLING ADDRESS
Other
Other Address

DATA SHEET
See Attached Portal Request
EPA ID:

Specific Tank or Treatment unit to delete
Indicated in other/notes field

UNINCORPORATED
Talbots Cyclery FA0052226 Aug 8, 2019
●
Digitally signed by Apollonia Helm
Date: 2019.08.08 10:25:15 -07'00'
Facility hazardous waste generator closure is complete.

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Monday, July 6, 2020 at 12:29:08 Pacific Daylight Time

Subject: Public Records Request No. 2020-07-0041
Date: Monday, July 6, 2020 at 12:27:32 PM Pacific Daylight Time From: Public Records
To: Julie Krachey
Dear Julie Krachey,
Thank you for your request. We have searched our records and have no records that respond to your below request for:
415 & 445 South B Street
San Mateo
If you have any quesSons or concerns, please call or e-mail me.

Sincerely,
Rochele Henderson
Public Records SecSon
BAAQMD
415-516-1916
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APPENDIX K

PHASE II ENVIRONMENTAL SITE INVESTIGATION
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1371 OAKLAND BOULEVARD, SUITE 200 – WALNUT CREEK, CA

FINAL DRAFT
October 27, 2020
Mr. Massimo Kaz
Prometheus Real Estate Group
1900 South Norfolk Street, Suite 150
San Mateo, California 94403

Subject: Phase II Environmental Site Investigation Report 415 and 445 South B Street, San Mateo, California 94401 Dear Mr. Kaz:

RMD Environmental Solutions, Inc., (RMD) has prepared a Phase II Environmental Site Investigation Report (Phase II Report) describing recent investigation activities for 415 and 445 South B Street in San Mateo, California (the Site; Figure 1). The RMD Proposal for Phase I and Phase II Environmental Site Assessment1 described a scope of work to assess whether contamination is present which may trigger an obligation to perform further investigation and/or mitigation measures or which otherwise could result in environmental liability should Prometheus Real Estate Group (Prometheus) purchase the Site for redevelopment. An additional Phase II investigation scope of work was proposed and implemented based on the findings of the initial Phase II investigation. The Site background, investigation objectives, scope of work, and results are provided in the Report sections below.

SITE BACKGROUND
The Site consists of two parcels totaling approximately 23,100 square feet north of East Fifth Avenue and east of South B Street and is identified as San Mateo County Assessor’s parcel numbers (APN) 034-179-030 and 034-179-040. The Site is currently developed with vacant retail units. Details regarding the Site operations, ownership, and improvements are included in the Phase I Environmental Site Assessment (ESA) report, prepared concurrently. The Site is shown on a Site Plan that is provided as Figure 2.

Prometheus intends to remove the existing building and construct commercial space over the entire building footprint. One design option includes an underground parking structure with a 1 RMD, 2020. Proposal for Phase I and Phase II Environmental Site Assessment, 415 and 445 South B Street, San Mateo, California. June 30.
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October 27, 2020

RMD ENVIRONMENTAL SOLUTIONS, INC.
waterproofing membrane system. However, it has not yet been determined whether this design will ultimately be implemented.

SCOPE OF WORK
During the initial Phase II investigation in July 2020, the scope of work consisted of a combination of on-Site soil borings and soil vapor sampling, and-off Site grab groundwater collection, summarized as follows:
• Soil borings were advanced at three off-Site locations (SB-01, SB-02, and SB-03; Figure 2) for grab groundwater sample collection. Boring SB-03 produced insufficient water to collect a sample, a deep soil sample was collected instead. The soil borings were tremie grouted to the surface following the completion of sampling. On July 31, 2020, the boring locations were repaired at the surface with hot asphalt, pursuant to City of San Mateo encroachment permit requirements.
• Dual-nested soil vapor sample probes were installed at three on-Site locations (SVP-01, SVP-02, and SVP-03; Figure 2) at 3.5 feet below ground surface (bgs; SVP-02 and SVP03) or 4.5 feet bgs (SVP-01) and at 6.5 feet bgs (SVP-02 and SVP-03) or 7.5 feet bgs (SVP01) depth. The original target depth for the deeper probes was 9.5 feet bgs, however refusal was encountered at all on-Site borings before the target depth was reached, as further discussed in the sections that follow. Soil samples were collected at each location during installation. Each of the dual-nested soil vapor probes were sampled more than 48 hours after installation.

Based on findings of the initial Phase II investigation, an additional step-out investigation was conducted in September 2020. The additional investigation scope of work consisted of on-Site soil borings, grab groundwater sampling, and soil vapor sampling, summarized as follows:
• A soil boring was advanced at one location (SB-04; Figure 2) for grab groundwater sample collection. The soil boring was tremie grouted to the surface following the completion of sampling.
• Soil vapor sample probes were installed at four locations (SVP-04, SVP-05, SVP-06, and SVP-07; Figure 2) at 4.5 feet below ground surface (bgs) depth. The four probes were located approximately 30-40 feet away, roughly in each cardinal direction where access allowed, from previously installed probe SVP-02 in an attempt to delineate the lateral extent of tetrachloroethene (PCE) in soil vapor. Similar to the initial soil vapor probes, the step-out probes were planned to be installed as dual-nested probes, however refusal 5341 of 11211
Mr. Kaz
October 27, 2020

RMD ENVIRONMENTAL SOLUTIONS, INC.
was encountered at each of the borings before the target depth was reached and singlecompletion probes were installed instead. Soil samples were collected at each location during installation. Each of the soil vapor probes were sampled more than 48 hours after installation.

Drilling activities were conducted by Cascade Drilling (Cascade), a C-57 licensed contractor under the oversight of RMD personnel. All work was performed under direction of a California licensed geologist.

Further details are provided as follows.

PRE-FIELD ACTIVITIES
Prior to initiating field work, RMD performed the following pre-field activities:
• Marked the proposed sampling locations for Underground Service Alert (USA); • Prepared a Site-specific Health and Safety Plan;
• Obtained drilling permits from the San Mateo County Environmental Health Services Groundwater Protection Program (Attachment A);
• Obtained an encroachment permit from the City of San Mateo Public Works Department (Appendix A); and
• Conducted an underground utility survey to clear the proposed drilling locations of underground utilities and other possible subsurface obstructions.

SOIL LOGGING
During hand augering of each borehole, soil was visually characterized and described using the Unified Soil Classification System (USCS). Soil samples were field screened for total volatile organic compounds (VOCs) using a handheld photoionization detector (PID). At on-Site locations, shallow soil was comprised of well graded sand with gravel or sand with clay until approximately 7 to 8 feet bgs, when large rocks and bricks were encountered. The borings were terminated at these depths due to refusal with the hand auger. At off-Site locations, between approximately 1 foot bgs and 30 feet bgs, the soil was comprised of primarily clayey sand and sandy clay with intermittent relatively thin lenses of more permeable and gravelly soil.

Groundwater was encountered between approximately 28 and 31.5 feet bgs. No odors or elevated PID readings were observed during drilling activities. PID readings were either not detected or measured at very low concentrations that are not considered significant (the 5342 of 11211
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October 27, 2020

RMD ENVIRONMENTAL SOLUTIONS, INC.
maximum PID detection was 6.1 parts per million by volume [ppmv} measured in boring SVP-7).

The soil types and PID readings were recorded on boring logs (Attachment B).

SOIL SAMPLING
Soil samples were collected at each soil vapor probe boring location during hand augering and at boring SB-03 during direct-push drilling activities. At borings SVP-01, SVP-02, and SVP-03, soil samples were collected at approximately 1 foot within native soil, at approximately 5 feet bgs, and near the bottom of each boring. At borings SVP-04, SVP-05, SVP-06, and SVP-07, soil samples were collected at approximately 1 foot within native soil, at approximately 3 feet bgs, 5 feet bgs, and near the bottom of each boring. At boring SB-03, a soil sample was collected at 30 feet bgs in lieu of groundwater since the boring did not produce water sufficient for grab groundwater sample collection. At boring SB-04, soil samples were collected at approximately 5 feet bgs, 10 feet bgs, 15 feet bgs, and 20 feet bgs. Soil samples were collected in laboratorysupplied sample containers, labeled, placed in a chilled cooler, and transported under standard chain-of-custody (COC) protocol to Pace Analytical (Pace), a State-certified laboratory, for analysis. At each soil vapor probe location and boring SB-04, a composite of the discrete soil samples was analyzed for the following:
• Total petroleum hydrocarbons (TPH) as gasoline (TPHg), TPH as diesel (TPHd), and TPH as motor oil (TPHmo) using United States Environmental Protection Agency (USEPA) Method 8015;
• VOCs using USEPA Method 8260B; and
• California Administrative Manual (CAM)-17 Metals using USEPA Method 6020.

The discrete samples that made up the composite samples were placed on hold at the laboratory pending analysis of the composite samples. After reviewing the initial results of the composite samples, each of the discrete samples collected from soil vapor probe borings SVP-01 through SVP-05 were analyzed for lead using USEPA Method 6020.

The deep soil sample collected at boring SB-03 was analyzed for TPHg using USEPA Method 8015 and VOCs using USEPA Method 8260B.

GRAB GROUNDWATER SAMPLING
Four soil borings (SB-01 through SB-04) were advanced to approximately 32-34 feet bgs using a direct-push rig with a Macrocore sampler. Boring SB-03 was further advanced to approximately 40 feet bgs after no water initially entered the boring. Each boring was cleared to 5 feet bgs using a hand auger to confirm the absence of shallow obstructions. Once each boring reached 5343 of 11211
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RMD ENVIRONMENTAL SOLUTIONS, INC.
the target depth, temporary PVC casing with 10 feet of 0.010-inch machined-slot screen was installed to facilitate grab groundwater sample collection. Following sample collection, each boring was tremie-grouted with neat cement and capped with concrete to match surrounding grade.

Grab groundwater samples were collected at borings SB-01, SB-02, and SB-04 using a new disposable bailer and were transferred directly into laboratory-supplied sample containers.

Samples were labeled, placed in a chilled cooler, and transported under standard COC protocol to Pace for analysis. Grab groundwater samples were analyzed for TPHg and VOCs using USEPA Method 8260B. At boring SB-03, after a period of approximately 20 hours, there was insufficient groundwater to collect a sample.

SOIL VAPOR PROBE INSTALLATION
Seven soil borings (SVP-01 through SVP-07) were advanced to approximately 5-8 feet bgs using a hand auger. In borings SVP-01 through SVP-03 dual-nested soil vapor probes were installed in each boring. In borings SVP-04 through SVP-07 single completion soil vapor probes were installed in each boring. At each location an unknown obstruction, potentially a large rock, bricks, or buried concrete slab, was encountered above the target depth of 10 feet bgs and the borings were terminated. At boring SVP-01, soil vapor probes were installed at 4.5 feet bgs and

7.5 feet bgs. At borings SVP-02 and SVP-03, soil vapor probes were installed at 3.5 feet bgs and

6.5 feet bgs. At borings SVP-04 through SVP-07, soil vapor probes were installed at 4.5 feet bgs. Soil vapor probes were installed in accordance with the methods and procedures outlined in the Advisory – Active Soil Gas Investigations (Advisory)2. The soil vapor probes were constructed using 1/4-inch diameter Teflon™ tubing, fitted with a vapor probe implant installed at the target depth with a three-way valve at the surface. The annulus surrounding the implant was filled with #2/12 Monterey sand to six inches above and below the implant, followed by a one foot layer of dry granulated bentonite, and hydrated bentonite chips to the bottom of the shallow soil vapor probe for the deep probe or near ground surface for the shallow probe/single completion probe. A traffic-rated flush-mount vault box was installed at the surface of each location for protection. Soil vapor probe construction details were recorded in Table 1 and on the boring logs (Attachment B).
2 Department of Toxic Substances Control, Los Angeles Regional Water Quality Control Board, and San Francisco Regional Water Quality Control Board (CalEPA). 2015. Advisory – Active Soil Gas Investigations. July. 5344 of 11211
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RMD ENVIRONMENTAL SOLUTIONS, INC.

SOIL VAPOR PROBE SAMPLING
On July 29, 2020, the three dual-nested soil vapor probes (SVP-01, SVP-02, and SVP-03; six probes total) were sampled. On September 10, 2020, the four single completion soil vapor probes (SVP-04 through SVP-07) and the shallow probe at SVP-02 were sampled. Each soil vapor probe was sampled in accordance with the Advisory. At each probe a shut-in test was conducted and a total of three system volumes were removed prior to sampling. A helium shroud was used to conduct a leak test at each sampling point. An average of 21 to 36 percent (%) helium was monitored and maintained under the helium shroud during sample collection. Soil vapor samples were collected from each location in 1-liter SUMMATM canisters, labeled, handled under standard COC protocols, and transported to Pace for analysis. Replicate samples were collected from SVP-02 at 3.5 feet bgs during each sampling event. The samples were analyzed for TPHg and VOCs using USEPA Method TO-15, and fixed gases, helium and oxygen, using modified American Society for Testing and Materials (ASTM) Method D-1946.

INVESTIGATION RESULTS
SOIL
Soil analytical results were compared to the San Francisco Bay Regional Water Quality Control Board (SFBRWQCB) Tier 1 Environmental Screening Levels (ESLs)3 and Direct Exposure Human Health Risk Levels for Commercial/Industrial Shallow Soil Exposure (Commercial ESL). TPHg, TPHd, TPHmo, and VOC concentrations are presented on Table 2. None of the samples analyzed reported TPH or VOC detections above applicable screening levels. Metal concentrations are presented in Table 3. Metals with reported concentrations above Tier 1 ESLs, Commercial ESLs, and/or Bay Area Background Levels (Background Levels)4 are summarized as follows:
• Arsenic was detected above the Tier 1 ESL of 0.067 milligrams per kilogram (mg/kg) in each of the eight composite samples analyzed. However, all eight samples were below the Background Level of 11 mg/kg.
• Lead was detected above the Tier 1 ESL of 32 mg/kg and the Background Level of 24 mg/kg in five of the eight composite samples analyzed from borings SVP-01 through 3 San Francisco Bay Regional Water Quality Control Board. 2009. Tier 1 Environmental Screening Levels. 2019 Interim Final Rev. 2.
4 Lawrence Berkeley National Laboratory. 2009. Analysis of Background Distributions of Metals in Soil at Lawrence Berkeley National Laboratory, Table 5. Revised April. For arsenic, the background concentration was based on Establishing Background Arsenic in Soil of the Urbanized San Francisco Bay Region (Duvergé, 2011). 5345 of 11211
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SVP-05. Based on these results, the 17 discrete soil samples from the five borings were analyzed for lead. Lead was detected above the Tier 1 ESL and the Background Level in eight of the 17 discrete samples analyzed. Lead concentrations ranged from 3.84 mg/kg in the sample collected from boring SVP-01 at 5 feet bgs to 607 mg/kg in boring SVP-05 at 3 feet bgs. Lead was detected above the Commercial ESL of 320 mg/kg in three discrete samples at concentrations of 444 mg/kg in boring SVP-02 at 1 foot bgs, 466 mg/kg in boring SVP-03 at 1 foot bgs, and 607 mg/kg in boring SVP-05 at 3 feet bgs. • Vanadium was detected above the Tier 1 ESL of 18 mg/kg in each of the eight composite samples analyzed. However, all eight samples were below the Background Level of 90 mg/kg. Vanadium was not detected above the Commercial ESL of 5,800 mg/kg in any of the analyzed samples.
• No additional metals were detected above the Tier 1 ESLs, Commercial ESLs, or Background Levels in the analyzed soil samples.

Based on the results, several samples were additionally analyzed using the waste extraction test (WET) for waste characterization. The soluble threshold limit concentration (STLC) extraction test and toxicity characteristic leaching procedure (TCLP) for lead and/or chromium was conducted on the samples, as identified on Table 3. All STLC and TCLP extraction results for chromium and lead in the composite samples were below the respective non-hazardous waste classification limits.

Laboratory analytical reports are included in Attachment C.

GROUNDWATER
Table 4 and Figure 3 summarize the grab groundwater analytical results. TPHg and VOC concentrations were compared to SFBRWQCB Tier 1 ESLs and Vapor Intrusion ESLs for Commercial/Industrial Land Use (Commercial VI ESL). A summary of the detections is as follows:
• TPHg was reported above the Tier 1 ESL of 100 micrograms per liter (µg/L) in two of three samples analyzed. TPHg concentrations were 122 µg/L at boring SB-01 and 180 µg/L at boring SB-02. Both samples were flagged as estimated values (J-flag) and the same analyte was found in the associated blank (B-flag). There is no established Commercial VI ESL for TPHg.
• Fuel-related VOCs including benzene, toluene, ethylbenzene, xylenes (BTEX), and methyl tert-butyl ether (MTBE) were not detected above RLs in two samples (SB-01 and SB-02) 5346 of 11211
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RMD ENVIRONMENTAL SOLUTIONS, INC.
and were detected near the RL at boring SB-04. The detections at SB-04 were J-flagged as estimated values and were below both the Tier 1 ESL and the Commercial VI ESL. • Tetrachloroethene (PCE) was detected above the Tier 1 ESL of 0.64 µg/L and the Commercial VI ESL of 2.8 µg/L in one of the three samples analyzed. PCE was detected in boring SB-04 at concentrations of 2.39 µg/L (primary sample) and 3.16 µg/L (duplicate sample).
• Trichloroethene (TCE) was detected above the RL in one of three samples analyzed, but was below the Tier 1 ESL of 1.2 µg/L and the Commercial VI ESL of 7.5 µg/L. TCE was detected in boring SB-04 at concentrations of 0.469 µg/L (primary sample; J-flag) and

0.696 µg/L (duplicate sample).
• cis-1,2-dichloroethene (DCE) was detected above the RL in one of three samples analyzed, but was below the Tier 1 ESL of 6.0 µg/L and the Commercial VI ESL of 210 µg/L. cis-1,2-DCE was detected in boring SB-04 at concentrations of 0.134 µg/L (primary sample) and 0.198 µg/L (duplicate sample). Both the primary and duplicate samples were J-flagged as estimated values.
• Vinyl chloride was not detected above RLs in the three samples collected. • Other VOCs, including chloroform and carbon disulfide, were reported at relatively low concentrations. These constituents either do not have an established ESL or are not considered chemicals of concern that would trigger additional investigation or mitigation.

The laboratory analytical report is included in Attachment C.

SOIL VAPOR
Tables 5, 6, and 7 and Figure 4 summarize the soil vapor analytical results. TPHg and VOC constituents were compared to SFBRWQCB Tier 1 ESLs and Subslab/Soil Gas Human Health Risk Screening Levels for Commercial Exposure (Commercial Soil Gas ESLs). All reported soil vapor concentrations were below the Tier 1 ESLs with the following exceptions:
• TPHg was detected above the Tier 1 ESL of 3,300 micrograms per cubic meter (µg/m3) in one of 11 samples and was not detected above the Commercial Soil Gas ESL of 83,000 µg/m3. TPHg was detected at a concentration of 6,900 µg/m3 at probe SVP-07. • Benzene was detected above the Tier 1 ESL of 3.2 µg/m3 in three of 11 samples and was detected above the Commercial Soil Gas ESL of 14 µg/m3 in one of 11 samples. Benzene was detected at concentrations of 10.6 µg/m3 at probe SVP-07, 10.9 µg/m3 at probe SVP05, and 24.2 µg/m3 at probe SVP-06. 5347 of 11211
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RMD ENVIRONMENTAL SOLUTIONS, INC.
• PCE was reported above the Tier 1 ESL of 15 µg/m3 in six of 11 samples and above the Commercial Soil Gas ESL of 67 µg/m3 in five of 11 samples. PCE concentrations ranged from 31.3 µg/m3 at probe SVP-02 at 6.5 feet bgs to 2,620 µg/m3 at probe SVP-05. • Methylene chloride was detected above the Tier 1 ESL of 34 µg/m3 in two samples. The maximum concentration was 139 µg/m3, which is below the Commercial Soil Gas ESL of 410 µg/m3. Methylene chloride is a common laboratory contaminant. • Other VOCs were detected above laboratory reporting limits, but were either below the Tier 1 ESL, Commercial Soil Gas ESL, and/or there is no established ESL and are not considered primary chemicals of concern.

Fixed gases including oxygen were analyzed at each soil vapor probe location. Oxygen concentrations ranged from 18.1% at probe SVP-02 at 6.5 feet bgs to 20.7% at probe SVP-07.

An oxygen concentration above 4% is an indication of a bioattenuation zone present in the subsurface5.

Laboratory analytical reports are included in Attachment C.

Quality Assurance/Quality Control Sampling
Helium was used as a leak check compound for collection of the soil vapor samples for analysis of TPHg and VOCs by USEPA Method TO-15. Helium was not detected above the laboratory reporting limit in the soil vapor samples collected, except for a detection of 0.136% in the sample collected at probe SVP-05. To evaluate the potential leak at probe SVP-05, a ratio of the concentration of helium measured in the sample to the average concentration of helium under the shroud during the sample collected was estimated. The helium leak ratio calculated for probe SVP-05 was 0.6%. A leak threshold of 5% is considered acceptable when a quantitative leak check compound is used under the sampling shroud (CalEPA, 2015). The estimated helium leak ratio is below the threshold; therefore, the TO-15 data were considered valid and representative. A summary of helium data is shown on Table 7.

A replicate sample was collected at probe SVP-02 at 3.5 feet bgs during each sampling event and analyzed for TPHg and VOCs using USEPA Method TO-15. The replicate samples were collected to evaluate data precision expressed in terms of percent difference. The relative percent difference (RPD) is calculated as follows:
5 State Water Resources Control Board. 2012. Low-Threat Underground Storage Tank Case Closure Policy.

November 6.
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October 27, 2020

RMD ENVIRONMENTAL SOLUTIONS, INC.

RPD= ±(D1-D2)
(D1+D2)/2×100
During the July 29, 2020 sampling event, the RPD for soil vapor ranged from 0.3% (total xylenes) to 5.8% (benzene) with an average RPD of 2.5%, which is well below the 50% RPD target for soil vapor samples. During the September 10, 2020 sampling event, the RPD for soil vapor ranged from 10.4% (PCE) to 25.5% (toluene) with an average RPD of 18.6%, which is well below the 50% RPD target for soil vapor samples.

Laboratory analytical reports are included in Appendix C.

INVESTIGATION DERIVED WASTE MANAGEMENT
Investigation derived waste (IDW) consisted of soil cuttings. IDW was stored on-Site in properly labeled 55-gallon drums. Following waste characterization profiling, IDW will be disposed of in accordance with applicable laws and regulations.

DISCUSSION OF KEY RESULTS AND CONCLUSIONS
Soil samples collected from the Site indicate that lead is present in soil at concentrations that would require management and/or mitigation during site redevelopment. Mitigation measures could consist of offsite disposal or consolidation and capping under future buildings or hardscape areas. Administrative controls, including a deed restriction and/or Site Management Plan, would be required if and to the extent that the lead-impacted soil is not removed from the property. STLC and TCLP soil analytical results demonstrate the chromium and lead detected in the composite samples does not fall under hazardous waste classification.

TPHg was detected above the Tier 1 ESL for groundwater at off-Site borings SB-01 and SB-02 however was not detected above the reporting limit (RL) at on-Site boring SB-04. Petroleumrelated chemicals, including TPHg and benzene were reported in soil vapor beneath the property. Based on the distribution of petroleum constituents, the presence of upgradient and cross-gradient historic service stations (Figure 5), and the expected groundwater flow direction, petroleum impacts are likely attributed to an off-Site source. RMD notes that oxygen concentrations reported in each of the soil vapor samples indicated a bioattenuation zone is present in the subsurface.

PCE was detected above the Tier 1 ESL for groundwater in the sample collected on the downgradient property line (SB-04) at a concentration of 3.16 µg/L. This concentration above the commerical vapor intrusion ESL of 2.8 µg/L. PCE was detected above the Tier 1 ESL and the Commercial Soil Gas at soil vapor probes SVP-02, SVP-04, SVP-05, and SVP-06; 5349 of 11211
Mr. Kaz
October 27, 2020

RMD ENVIRONMENTAL SOLUTIONS, INC.
concentrations decreased with depth at the SVP-02 location. Although there is no documented use of chlorinated solvents at the Subject Site, the distribution of PCE in the subsurface suggests the possibility of an on-Site PCE source. An indoor air assessment should be conducted in the current building, if occupied, to evaluate potential vapor intrusion risk.

In summary, petroleum constituents have migrated onto the property from upgradient source(s) and PCE is present beneath the property at concentrations above regulatory screening levels for mitigation. In addition, lead is present in shallow soil at concentrations above applicable screening levels. Should Prometheus purchase the property, regulatory oversight and mitigation and/or administrative controls will be required during property redevelopment related to 1) shallow soil impacted with lead and 2) soil and groundwater management related to petroleum and chlorinated solvent impacts to soil vapor and groundwater. If the development plan remains to excavate for subterranean parking, then such excavation activities should resolve the presence of lead in soil and any source of PCE in shallow soil (if present). A vapor barrier may be required beneath future building footprints unless post-excavation sampling confirm that volatile organic compounds are no longer present at concentrations that pose a vapor intrusion risk. RMD notes that additional investigation may be required by the regulatory agencies to further delineate PCE in soil vapor offsite and/or post-excavation.

CLOSING
If you have any questions or comments, please do not hesitate to contact Ms. Kirsten Duey at (925) 683-8177 or [email protected].

Sincerely,
RMD ENVIRONMENTAL SOLUTIONS, INC.

Doug Whichard Paola Gomez-Birenbaum, P.G.

Project Scientist Senior Geologist
Kirsten Duey
Principal Engineer
ATTACHMENTS:
5350 of 11211
Mr. Kaz
October 27, 2020

RMD ENVIRONMENTAL SOLUTIONS, INC.

Figure 1 – Site Location Map
Figure 2 – Site Plan
Figure 3 – TPHg and PCE in Groundwater
Figure 4 – TPHg, Benzene and PCE in Soil Vapor
Figure 5 – Site Vicinity
Table 1 – Soil Vapor Probe Construction Details
Table 2 – Summary of Soil Analytical Results – TPH and VOCs Table 3 – Summary of Soil Analytical Results – Metals
Table 4 – Summary of Groundwater Analytical Results – TPHg and VOCs Table 5 – Summary of Soil Vapor Analytical Results – TPHg and VOCs Table 6 – Summary of Maximum Soil Vapor Concentrations – Other VOCs Table 7 – Summary of Soil Vapor Analytical Results – Fixed Gases Attachment A – Drilling and Encroachment Permits
Attachment B – Boring Logs and Field Data Sheets
Attachment C – Laboratory Analytical Reports
5351 of 11211
Mr. Kaz
October 27, 2020

RMD ENVIRONMENTAL SOLUTIONS, INC.

LIMITATIONS
This document was prepared for the exclusive use of the Client for the express purpose of complying with a regulatory directive for environmental investigation or restoration. RMD has used professional judgment to present the findings and opinions of a scientific and technical nature. The opinions expressed are based on the conditions of the Site existing at the time of the field investigation, current regulatory requirements, and any specified assumptions. The presented findings and recommendations in this document are intended to be taken in their entirety to assist the Client in applying their own professional judgment in making decisions related to the property. No warranty or guarantee, whether expressed or implied, is made with respect to the data or the reported findings, observations, conclusions, and recommendations. 5352 of 11211

FIGURES
5353 of 11211

SITE LOCATION MAP
668 EAST 3RD AVENUE

SAN MATEO, CALIFORNIA
Project:

Date:

Drawn:

Approved:
01-352-003

-.

KD
FIGURE
N 1
6RXUFHV

TP, San Mateo, 2012, 7.5-minute
DRAFT
SITE
5354 of 11211
SVP-01 SB-01 SB-02 SOUTH RAILROAD AVENUE SB-03 SVP-03EAST 5TH AVENUE SOUTH B STREET EAST 4TH AVENUE 445 SOUTH B ST 415 SOUTH B ST SVP-07 SVP-04 SB-04 SVP-02 SVP-06 SVP-05 SS SS SS SS SS SS SS HORIZONTAL SCALE IN FEET 60 SITE PLANLEGEND 415 & 445 SOUTH B STREET SAN MATEO, CALIFORNIA PROJECT NO. DATE DR. BY: APP. BY: 01-PRO-003 09/2020 DCB KD FIGURE 2 Site Boundary N Soil Vapor Probe Location 0 120Grab Groundwater Sampling Location SVP-01 SB-01 SOURCE: GOOGLE EARTH, 2020 SS Sanitary Sewer 5355 of 11211
SVP-01 SB-01 SB-02 SOUTH RAILROAD AVENUE SB-03 SVP-03EAST 5TH AVENUE SOUTH B STREET EAST 4TH AVENUE 445 SOUTH B ST 415 SOUTH B ST SVP-07 SVP-04 SB-04 SVP-02 SVP-06 SVP-05 SS SS SS SS SS SS SS HORIZONTAL SCALE IN FEET 60 TPHg AND PCE IN GROUNDWATER LEGEND 668 EAST THIRD AVENUE SAN MATEO, CALIFORNIA 94401 PROJECT NO. DATE DR. BY: APP. BY: 01-PRO-003 09/2020 DCB PGB FIGURE 3 Site Boundary Soil Vapor Probe Location 0 120Grab Groundwater Sampling Location SVP-01 SB-01 SOURCE: GOOGLE EARTH, 2020 Total Petroleum Hydrocarbons as Gasoline The Same Analyte Is Found in the Associated Blank Micrograms per Liter Concentration in µg/L TPHg Bµg/L 122 7/28/20 TPHg 122 J,B PCE <1.00 Inferred Groundwater Gradient Direction (DRY) J Estimated Value N Notes: 1) Yellow shaded values exceed the Tier 1 Environmental Screening Level (ESL). 2) Where primary and duplicate samples collected, the highest value is shown. SS Sanitary Sewer 9/8/20 TPHg <100 PCE 3.16 7/28/20 TPHg 180 J,B PCE <1.00 PCE Tetrachloroethene 5356 of 11211 SVP-01 SB-01 SB-02 SOUTH RAILROAD AVENUE SB-03 SVP-03EAST 5TH AVENUE SOUTH B STREET EAST 4TH AVENUE 445 SOUTH B ST 415 SOUTH B ST SVP-07 SVP-04 SB-04 SVP-02 SVP-06 SVP-05 SS SS SS SS SS SS SS HORIZONTAL SCALE IN FEET 60 TPHg, BENZENE, AND PCE IN SOIL VAPORLEGEND 668 EAST THIRD AVENUE SAN MATEO, CALIFORNIA 94401 PROJECT NO. DATE DR. BY: APP. BY: 01-PRO-003 09/2020 DCB PGB FIGURE 4 Site Boundary Soil Vapor Probe Location 0 120Grab Groundwater Sampling Location SVP-01 SB-01 SOURCE: GOOGLE EARTH, 2020 Total Petroleum Hydrocarbons as Gasoline Tetrachloroethene Micrograms per Cubic Meter Concentration in µg/m³ TPHg PCE µg/m³ 2.30 Depth TPHg Benzene PCE 3.5 (9/10/20) <826 <0.639 172 6.5 (7/29/20) <826 J4 <0.805 31.3 7/29/20 Depth TPHg Benzene PCE 4.5 <826 J4 1.60 2.68 7.5 <826 J4 1.04 2.30 7/29/20 Depth TPHg Benzene PCE 3.5 1,030 2.24 1.41 6.5 <826 2.66 <1.36 N Inferred Groundwater Gradient Direction The Associated Batch QC Was Outside the Established Quality Control Range for Accuracy J4 Notes: 1) Yellow shaded values exceed the Tier 1 Environmental Screening Level (ESL). 2) Where primary and duplicate samples collected, the highest value is shown. 3) Sample depth is shown in feet below ground surface (Ft bgs). SS Sanitary Sewer 9/10/20 Depth TPHg Benzene PCE 4.5 1,850 3.04 747 9/10/20 Depth TPHg Benzene PCE 4.5 3,110 10.9 2,620 9/10/20 Depth TPHg Benzene PCE 4.5 2,360 24.2 801 9/10/20 Depth TPHg Benzene PCE 4.5 6,900 10.6 6.25 5357 of 11211 EAST 5TH AVENUE

SOUTH B STREET
EAST 4TH AVENUE SOUTH RAILROAD AVENUE 335 EAST 4TH ST (CURRENT DRY CLEANER) 306 EAST 5TH AVE (HISTORIC DRY CLEANER) 446 SOUTH B ST (HISTORIC SERVICE STATION) 401 SOUTH B ST (HISTORIC SERVICE STATION) 411 SOUTH B ST (HISTORIC DRY CLEANER) 503 SOUTH B ST (HISTORIC SERVICE STATION) 507 SOUTH B ST (CURRENT DRY CLEANER) 415 SOUTH B ST 445 SOUTH B ST HORIZONTAL SCALE IN FEET 80 HISTORICAL SURROUNDING AREAS LEGEND 415 & 445 SOUTH B STREET SAN MATEO, CALIFORNIA PROJECT NO. DATE DR. BY: APP. BY: 01-PRO-003 08/2020 DCB KD FIGURE 5 Site Boundary N 0 160 SOURCE: GOOGLE EARTH, 2020 5358 of 11211
TABLES
DRAFT
5359 of 11211
Table 1
Soil Vapor Probe Construction Details
415 and 445 South B Street
San Mateo, California

Probe ID Date
Installed
Total Boring
Depth
(feet bgs)
Tubing
Diameter
(inches)
Probe Depth
(feet bgs)
Seal Interval
(feet bgs)
Sand Pack
Interval
(feet bgs)

4.5 1 - 4 4 - 5

7.5 5 - 7 7 - 8

3.5 1 - 3 3 - 4

6.5 4 - 6 6 - 7

3.5 1 - 3 3 - 4

6.5 4 - 6 6 - 7
SVP-4 9/8/2020 8.0 0.25 4.5 1 - 4 4 - 5
SVP-5 9/8/2020 7.0 0.25 4.5 1 - 4 4 - 5
SVP-6 9/8/2020 6.5 0.25 4.5 1 - 4 4 - 5
SVP-7 9/8/2020 5.0 0.25 4.5 1 - 4 4 - 5
Notes:
bgs = below ground surface.

SVP-3 7/27/2020 7.0 0.25
SVP-1 7/27/2020 8.0 0.25
SVP-2 7/27/2020
DRAFT

7.0 0.25
5360 of 11211
Table 2
Summary of Soil Analytical Results - VOCs
415 and 445 South B Street
San Mateo, California

Sample
Depth TPHg TPHd TPHmo Benzene Toluene Ethylbenzene Total Xylenes Naphthalene PCE TCE cis-1,2-DCE Vinyl Chloride 2-Butanone
(MEK) Styrene
(feet bgs) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) 2,000 1,200 180,000 1.4 5,300 26 2,500 17 2.7 6.1 85 3.4 200,000 33,000 100 260 1,600 0.025 3.2 0.43 2.1 0.040 0.08 0.085 0.19 0.0015 6.1 0.92 30 7/27/2020 <0.135 -- -- <0.00145 <0.00724 <0.00362 <0.00941 <0.0181 <0.00362 <0.00145 <0.00362 <0.00362 <0.145 <0.0181 SB-04 COMP 9/8/2020 <0.113 <4.53 1.60 J <0.00127 <0.00634 0.00532 0.00482 J 0.0218 0.00190 J <0.00127 <0.00317 <0.00317 <0.127 <0.0158 COMP 7/27/2020 <0.125 2.49 J 16.1 <0.00150 0.00269 J <0.00375 0.00315 J <0.0188 <0.00375 <0.00150 <0.00375 <0.00375 0.258 B 0.00297 J COMP 7/27/2020 <0.121 3.62 J 55.9 <0.00141 <0.00705 <0.00353 0.00151 J <0.0176 0.00180 J <0.00141 <0.00353 <0.00353 0.127 J 0.00134 J SVP-03 COMP 7/27/2020 <0.111 5.29 81.5 <0.00111 0.00154 J <0.00276 0.00310 J <0.0138 <0.00276 <0.00111 <0.00276 <0.00276 0.180 B 0.00138 J SVP-04 COMP 9/8/2020 <0.121 4.67 J 27.3 <0.00143 <0.00714 <0.00357 <0.00929 <0.0179 <0.00357 <0.00143 <0.00357 <0.00357 <0.143 <0.0179 SVP-05 COMP 9/8/2020 <0.113 3.49 J 21.8 0.000628 J 0.00327 J 0.00389 0.00534 J 0.0202 0.00142 J <0.00126 <0.00314 <0.00314 <0.126 <0.0157 SVP-06 COMP 9/8/2020 <0.112 <4.50 5.00 J <0.00125 <0.00625 <0.00312 <0.00812 <0.0156 <0.00312 <0.00125 <0.00312 <0.00312 <0.125 <0.0156 SVP-07 COMP 9/8/2020 <0.114 1.00 J 7.83 J <0.00128 <0.00642 <0.00321 <0.00834 <0.0160 <0.00321 <0.00128 <0.00321 <0.00321 <0.128 <0.0160 Notes:

Samples analyzed using USEPA Method 8260B. J = Estimated value.

SVP-01 (COMP) = Composite of soil samples collected at 1.5, 5 and 8 feet bgs. B = The same analyte is found in the associated blank.

SVP-02 (COMP) = Composite of soil samples collected at 1, 5 and 7 feet bgs. <0.010 = Not detected above the noted laboratory reporting limit.

SVP-03 (COMP) = Composite of soil samples collected at 1, 5 and 7 feet bgs. -- = Not analyzed.

SVP-04 (COMP) = Composite of soil samples collected at 1, 3, 5 and 7 feet bgs. bgs = Below ground surface.

SVP-05 (COMP) = Composite of soil samples collected at 1, 3, 5 and 7 feet bgs. mg/Kg = Milligrams per kilogram.

SVP-06 (COMP) = Composite of soil samples collected at 1, 3, 5 and 7 feet bgs. TPHg = Total Petroleum Hydrocarbons Gasoline range (C5-C12) SVP-07 (COMP) = Composite of soil samples collected at 1, 3 and 5 feet bgs. TPHd = Total Petroleum Hydrocarbons Diesel range (C12-C22) SB-04 (COMP) = Composite of soil samples collected at 5, 10, 15 and 20 feet bgs. TPHmo = Total Petroleum Hydrocarbons Motor Oil range (C22-C40) Note 1 SFBRWQCB, Direct Exposure Human Health Risk Levels for Commercial/Industrial Shallow Soil Exposure, 2019 (Rev. 2). VOCs = Volatile Organic Compounds.

Note 2 Tier 1 SFBRWQCB Environmental Screening Levels. 2019 Interim Final (Rev. 2). PCE = Tetrachloroethene.

SFBRWQCB = San Francisco Bay Regional Water Quality Control Board. TCE = Trichloroethene.

ESL = Environmental Screening Level. DCE = Dichloroethene.

SVP-02
SFBRWQCB Commercial ESLsNote 1
SB-03
Boring ID Date
Tier 1 ESLsNote 2
SVP-01
DRAFT
5361 of 11211
Table 3
Summary of Soil Analytical Results - Metals
415 and 445 South B Street
San Mateo, California

Sample
Depth Antimony Arsenic Note 4 Barium Beryllium Cadmium Chromium Note 3 Chromium -
STLC
Extraction
Chromium -
TCLP
Extraction
Cobalt Copper Lead
Lead -
STLC
Extraction
Lead -
TCLP
Extraction
Mercury Molybdenum Nickel Selenium Silver Thallium VanadiumNote 4 Zinc (feet bgs) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (µg/L) (µg/L) (mg/Kg) (mg/Kg) (mg/Kg) (µg/L) (µg/L) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) 160 0.31 220,000 230 1,100 NV -- -- 350 47,000 320 -- -- 190 5,800 11,000 5,800 5,800 12 5,800 350,000 11 0.067 390 5.0 1.9 160 -- -- 23 180 32 -- -- 13 6.9 86 2.4 25 0.78 18 340 <6.0 11 410 1.0 5.6 120 -- -- 25 63 24 -- -- 0.42 4.8 272 4.9 2.9 10 90 140 150 50 1,000 8.0 10 50 -- -- 800 250 50 -- -- 2.0 3,500 200 10 50 70 240 2,500 NV 100 2,000 NV 20 100 -- -- NV NV 100 -- -- 4.0 NV NV 20 100 NV NV NV -- -- -- -- -- -- 5,000 5,000 -- -- -- 5,000 5,000 -- -- -- -- -- -- -- --

1.5 7/27/2020 -- -- -- -- -- -- -- -- -- -- 80.9 -- -- -- -- -- -- -- -- -- -- 5 7/27/2020 -- -- -- -- -- -- -- -- -- -- 3.84 -- -- -- -- -- -- -- -- -- -- 8 7/27/2020 -- -- -- -- -- -- -- -- -- -- 184 -- -- -- -- -- -- -- -- -- -- COMP 7/27/2020 1.08 J 2.31 J 140 0.420 0.185 J 74.5 353 -- 16.8 28.9 37.5 -- -- 0.128 <0.625 72.0 <2.50 <1.25 <2.50 76.5 65 1 7/27/2020 -- -- -- -- -- -- -- -- -- -- 444 -- -- -- -- -- -- -- -- -- -- 5 7/27/2020 -- -- -- -- -- -- -- -- -- -- 13.7 -- -- -- -- -- -- -- -- -- -- 7 7/27/2020 -- -- -- -- -- -- -- -- -- -- 11.1 -- -- -- -- -- -- -- -- -- -- COMP 7/27/2020 1.25 J 2.94 199 0.545 0.377 J 81.1 291 -- 21.9 41.9 162 2,300 187 0.0715 <0.603 77.7 <2.41 <1.21 <2.41 86.1 109 1 7/27/2020 -- -- -- -- -- -- -- -- -- -- 466 -- -- -- -- -- -- -- -- -- -- 5 7/27/2020 -- -- -- -- -- -- -- -- -- -- 12.5 -- -- -- -- -- -- -- -- -- -- 7 7/27/2020 -- -- -- -- -- -- -- -- -- -- 33.8 -- -- -- -- -- -- -- -- -- -- COMP 7/27/2020 1.14 J 2.12 J 190 0.554 0.346 J 86.7 377 -- 20.8 34.9 100 2,490 <100 0.331 J6 <0.553 85.6 <2.21 <1.11 <2.21 81.2 124 1 9/8/2020 -- -- -- -- -- -- -- -- -- -- 4.67 -- -- -- -- -- -- -- -- -- -- 3 9/8/2020 -- -- -- -- -- -- -- -- -- -- 145 -- -- -- -- -- -- -- -- -- -- 5 9/8/2020 -- -- -- -- -- -- -- -- -- -- 19.6 -- -- -- -- -- -- -- -- -- -- 7 9/8/2020 -- -- -- -- -- -- -- -- -- -- 42.7 -- -- -- -- -- -- -- -- -- -- COMP 9/8/2020 <2.43 2.41 J 168 0.364 0.178 J 69.9 596 -- 19.9 36.2 62.2 628 -- 0.242 0.484 J 77.4 <2.43 <1.21 <2.43 88.1 70.7 1 9/8/2020 -- -- -- -- -- -- -- -- -- -- 20.8 O1 -- -- -- -- -- -- -- -- -- -- 3 9/8/2020 -- -- -- -- -- -- -- -- -- -- 607 -- -- -- -- -- -- -- -- -- -- 5 9/8/2020 -- -- -- -- -- -- -- -- -- -- 17.9 -- -- -- -- -- -- -- -- -- -- 7 9/8/2020 -- -- -- -- -- -- -- -- -- -- 19.7 -- -- -- -- -- -- -- -- -- -- COMP 9/8/2020 <2.26 1.91 J 149 0.419 0.252 J 80.2 958 -- 20.6 32.4 86.5 3,450 -- 0.0784 0.397 J 73.5 <2.26 <1.13 <2.26 71.6 83.5 1 9/8/2020 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 3 9/8/2020 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 5 9/8/2020 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 7 9/8/2020 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- COMP 9/8/2020 <2.25 1.05 J 115 0.467 0.149 J 119 281 <100 20.6 22.1 5.51 -- -- 0.0640 0.280 J 88.7 <2.25 <1.12 <2.25 74.6 73.7 1 9/8/2020 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 3 9/8/2020 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 5 9/8/2020 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- COMP 9/8/2020 <2.28 1.39 J 139 0.433 0.155 J 65.5 170 -- 15.4 21.3 15.1 -- -- 0.0556 0.390 67.9 <2.28 <1.14 <2.28 72.1 57.4 5 9/8/2020 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10 9/8/2020 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 15 9/8/2020 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20 9/8/2020 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- COMP 9/8/2020 <2.27 2.38 104 0.397 0.127 J 76.4 186 -- 19.4 29.8 6.08 -- -- 0.0424 J 3.80 118 <2.27 <1.13 <2.27 68.8 48.1 Boring ID Date
Tier 1 ESLs Note 2
Bay Area Background Metals in Soil Note 3
Threshold to Require STLC Analysis
SFBRWQCB Commercial ESL Note 1
SVP-01
SVP-02
SB-04
Threshold to Require TCLP Analysis
STLC/TCLP Non-Hazardous Classification Limit
SVP-03
SVP-04
SVP-05
SVP-06
SVP-07
5362 of 11211
Table 3
Summary of Soil Analytical Results - Metals
415 and 445 South B Street
San Mateo, California

Notes:

Samples analyzed using USEPA Method 6010.

SVP-01 (COMP) = Composite of soil samples collected at 1.5, 5 and 8 feet bgs.

SVP-02 (COMP) = Composite of soil samples collected at 1, 5 and 7 feet bgs.

SVP-03 (COMP) = Composite of soil samples collected at 1, 5 and 7 feet bgs.

SVP-04 (COMP) = Composite of soil samples collected at 1, 3, 5 and 7 feet bgs.

SVP-05 (COMP) = Composite of soil samples collected at 1, 3, 5 and 7 feet bgs.

SVP-06 (COMP) = Composite of soil samples collected at 1, 3, 5 and 7 feet bgs.

SVP-07 (COMP) = Composite of soil samples collected at 1, 3 and 5 feet bgs.

SB-04 (COMP) = Composite of soil samples collected at 5, 10, 15 and 20 feet bgs.

Italicized and emboldened values exceed the Commercial ESL.

Green shaded values exceed the Tier 1 ESL however are less than the Bay Area Background Level.

Yellow shaded values exceed the Tier 1 ESL and the Bay Area Background Level.

Values shown in red font exceed the threshold which triggers STLC analysis for waste characterization.

Values shown in blue font exceed the threshold which triggers TCLP analysis for waste characterization.

Note 1 SFBRWQCB, Direct Exposure Human Health Risk Levels for Commercial/Industrial Shallow Soil Exposure, 2019 (Rev. 2).

Note 2 SFRWQCB Tier 1 Environmental Screening Levels. 2019 Interim Final Rev. 2.

Note 4 ESL value shown is for total chromium.

Note 5 Vanadium and Arsenic concentrations were compared to the published background values for soil in the Bay Area, instead of ESLs bgs = Below ground surface.

SFBRWQCB = San Francisco Bay Regional Water Quality Control Board.

ESL = Environmental Screening Level.

NV = No established value.
<0.50 = Not detected above the noted laboratory reporting limit. mg/Kg = Milligrams per kilogram.

J = The identification of the analyte is acceptable; the reported value is an estimate.

J6 = The sample matrix interfered with the ability to make any accurate determination; spike value is low.

O1 = The analyte failed the method required serial dilution test and/or subsequent post-spike criteria. These failures indicate matrix interference.

STLC = Soluble Threshold Limit Concentration.

TCLP = Toxicity Characteristic Leaching Procedure.

Note 3 Lawrence Berkeley National Laboratory, Analysis of Background Distributions of Metals in Soil at Lawrence Berkeley National Laboratory, Table 5. Revised April 2009.

For arsenic, the background concentration was based on the document titled Establishing Background Arsenic in Soil of the Urbanized San Francisco Bay Area (Duverge, 2011) 5363 of 11211
Table 4
Summary of Grab Groundwater Analytical Results - VOCs
415 and 445 South B Street
San Mateo, California

Sample
Depth TPHg Benzene Toluene Ethylbenzene Total Xylenes MTBE Chloroform Carbon Disulfide PCE TCE cis-1,2-DCE Vinyl Chloride Other VOCs (feet bgs) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) 760 1.0 40 30 20 5.0 80 NV 5.0 5.0 6.0 0.5
NV 1.8 4,900 15 1,600 2,000 3.6 NV 2.8 7.5 210 0.14
100
(O/N)

0.42 (VI)
40 (O/N)

3.5 (VI)
20 (O/N)

5.0 (O/N)

0.81 (VI) NV 0.64(VI)

1.2 (VI)

6.0 (MCL)

0.0086
(VI)
SB-01 22 - 32 7/28/2020 122 J,B <1.00 <1.00 <1.00 <3.00 <1.00 0.736 J 0.354 J,B <1.00 <1.00 <1.00 <1.00 SB-02 22 - 32 7/28/2020 180 J,B <1.00 <1.00 <1.00 <3.00 <1.00 0.578 J 0.319 J,B <1.00 <1.00 <1.00 <1.00 24-34 9/8/2020 <100 0.178 J 0.339 J <0.500 0.309 J <0.500 0.347 J <0.500 2.39 0.469 J 0.134 J <0.500 24-34 9/8/2020 Duplicate <100 0.126 J <0.500 <0.500 0.178 J <0.500 0.402 J <0.500 3.16 0.696 0.198 J <0.500 Notes:

Yellow shaded values exceed the Tier 1 ESL.

Blue shaded values exceed the Tier 1 ESL and the Commercial/Industrial Vapor Intrusion ESL.

MCLs = Maximum Contaminant Levels for drinking water.

SFRWQCB ESL = San Francisco Bay Regional Water Quality Control Board Environmental Screening Level. 2019 (Rev. 2).

Note 1 MCL Priority lists all allowable MCLs. If no MCLs are available, the lower of the cancer, non-cancer, or tap water direct exposure level is listed. Note 2 SFRWQCB ESL for groundwater vapor intrusion. Note 3 Tier 1 SFBRWQCB Environmental Screening Levels. 2019 Interim Final (Rev. 2).

VI = Vapor Intrusion.

AH = Aquatic Habitat.

O/N = Odor/Nuisance.

VOCs = Volatile Organic Compounds.

TPHg = Total Petroleum Hydrocarbons as gasoline.

MTBE = Methyl tert butyl ether.

PCE = Tetrachloroethene.
µg/L = Micrograms per liter.
<0.500 = Not detected above noted laboratory reporting limit.

ND = Not detected above laboratory reporting limit.

NV = No Value Established.

J = Estimated value.

B = The same analyte is found in the associated blank.

ND
Varies
MCL Priority Note 1
SFBRWQCB Vapor Intrusion ESLs Commercial/Industrial Land UseNote 2 Tier 1 ESL Note 3
(Basis)
Boring ID Date
Sampled Notes
SB-04
5364 of 11211
Table 5
Summary of Soil Vapor Analytical Results - VOCs
415-455 South B Street
San Mateo, California

TPHg Benzene Toluene Ethylbenzene Total Xylenes MTBE PCE TCE cis-1,2-DCE Vinyl Chloride Methylene Chloride
(µg/m3) (µg/m3) (µg/m3) (µg/m3) (µg/m3) (µg/m3) (µg/m3) (µg/m3) (µg/m3) (µg/m3) (µg/m3) 83,000 14 44,000 160 15,000 1,600 67 100 1,200 5.2 410
3,300 3.2 10,000 37 3,500 360 15 16 280 0.32 34

4.5 7/29/2020 <826 J4 1.60 68.9 2.17 10.2 <0.721 2.68 <1.07 <0.793 <0.511 4.79

7.5 7/29/2020 <826 J4 1.04 20.7 0.867 6.04 <0.721 2.30 3.33 <0.793 <0.511 9.86

3.5 7/29/2020 1,450 1.59 63.7 1.92 7.92 <0.721 142 <1.07 <0.793 <0.511 4.03

3.5 7/29/2020 Replicate <826 1.51 62.2 1.86 7.94 <0.721 139 <1.07 <0.793 <0.511 9.76

3.5 9/10/2020 <826 <0.639 5.35 1.59 9.58 <0.721 155 <1.07 <0.793 <0.511 <0.694

3.5 9/10/2020 Replicate <826 <0.639 4.14 1.33 7.79 <0.721 172 <1.07 <0.793 <0.511 <0.694

6.5 7/29/2020 <826 J4 0.805 24.1 <0.867 2.23 <0.721 31.3 <1.07 <0.793 <0.511 85.8

3.5 7/29/2020 1,030 2.24 149 3.65 16.0 <0.721 1.41 <1.07 <0.793 <0.511 <0.694

6.5 7/29/2020 <826 2.66 111 2.33 9.49 <0.721 <1.36 <1.07 <0.793 <0.511 139 SVP-04 4.5 9/10/2020 1,850 3.04 134 4.99 25.3 <0.721 747 11.7 <0.793 <0.511 1.02 SVP-05 4.5 9/10/2020 3,110 10.9 27.3 2.43 12.6 <0.721 2,620 3.46 <0.793 <0.511 <0.694 SVP-06 4.5 9/10/2020 2,360 24.2 148 9.10 40.0 <0.721 801 <1.07 <0.793 <0.511 <0.694 SVP-07 4.5 9/10/2020 6,900 10.6 131 10.0 46.2 <0.721 6.25 5.35 <0.793 <0.511 <0.694 Notes:

Italicized and emboldened values exceed the Commercial ESL.

Highlighted values exceed the Tier 1 ESL.

Note 1 SFBRWQCB, Subslab/Soil Gas Human Health Risk Screening Levels for Commercial Exposure, 2019 (Rev. 2).

Note 2 Tier 1 SFBRWQCB Environmental Screening Levels. 2019 Interim Final (Rev. 2). µg/m3 = Micrograms per cubic meter.

SFBRWQCB = San Francisco Bay Regional Water Quality Control Board.

ESL = Environmental Screening Level.

J4 = The associated batch QC was outside the established quality control range for accuracy. <1.27 = Not detected above the noted laboratory reporting limit.

TPHg = Total Petroleum Hydrocarbons as Gasoline.

VOCs = Volatile organic compounds.

PCE = Tetrachloroethene.

TCE = Trichloroethene.

DCE = Dichloroethene.

MTBE = Methyl tert-butyl ether.

SFBRWQCB Commercial ESLsNote 1
Tier 1 ESLsNote 2
SVP-01
SVP-03
SVP-02
Sample ID Date
Sampled
Sample Depth
(feet bgs) Notes
5365 of 11211
Table 6
Summary of Maximum Soil Vapor Concentrations - Other VOCs 415 and 445 South B Street
San Mateo, California

RMD ENVIRONMENTAL SOLUTIONS, INC.
(µg/m 3 ) (µg/m 3 )
114 1,000,000

11.8 170,000

8.06 --
Carbon tetrachloride 1.28 16

1.59 3,100

21.1 --

3.70 8.5

95.2 --

6.04 --

7.59 --

9.99 --

35.9 --

78.6 --

6.59 --
327 --

6.04 --

1.93 --

2.01 --

0.902 --

11.4 35,000

44.2 --
Notes:

Note 1 SFBRWQCB Tier 1 Environmental Screening Levels. 2019 Interim Final (Rev. 2). -- = No published value.

VOCs = Volatile Organic Compounds.
µg/m3 = Micrograms per cubic meter.

SFBRWQCB = San Francisco Bay Regional Water Quality Control Board.

ESL = Environmental Screening Level.

Tier 1 ESLs Note 1
Trichlorofluoromethane (Freon 11)
Dichlorodifluoromethane (Freon 12)
Heptane
n-Hexane
Maximum Detected
Analyte Concentration
Carbon disulfide
Cyclohexane
Chloromethane
1,4-Dichlorobenzene
2-Butanone (MEK)
2,2,4-Trimethylpentane
1,1,1-Trichloroethane
Isopropyl alcohol/2-Propanol
Ethanol
Tetrahydrofuran
1,2,4-Trimethylbenzene
1,3,5-Trimethylbenzene
Methyl methacrylate
Propene
Acetone
4-Ethyltoluene
5366 of 11211
Table 7
Summary of Soil Vapor Analytical Results - Fixed Gases
415 and 445 South B Street
San Mateo, California

Sample ID Depth
(feet bgs) Sample Date Notes Helium in Sample (%)
Average Helium
Under Shroud
(%)
Leak Ratio Note
1 (%)
Oxygen
(%)

4.5 7/29/2020 <0.100 34.2 -- 20.4

7.5 7/29/2020 <0.100 30.7 -- 19.5

3.5 7/29/2020 <0.100 36.2 -- 19.0

3.5 7/29/2020 Replicate <0.100 25.1 -- 19.4

3.5 9/10/2020 <0.100 21.8 -- 20.9

3.5 9/10/2020 Replicate <0.100 21.6 -- 20.6

6.5 7/29/2020 <0.100 28.1 -- 18.1

3.5 7/29/2020 <0.100 34.6 -- 19.1

6.5 7/29/2020 <0.100 29.8 -- 18.4
SVP-04 4.5 9/10/2020 <0.100 22.3 -- 20.2
SVP-05 4.5 9/10/2020 0.136 23.2 0.6 19.2
SVP-06 4.5 9/10/2020 <0.100 24.9 -- 20.4
SVP-07 4.5 9/10/2020 <0.100 20.8 -- 20.7
Notes:

Fixed gases analyzed by ASTM Method D-1946.

Bold values were reported above laboratory detection limits.

Note 1Estimated leak ratio (%) = [Concentration of Helium in Sample (%)] / [Concentration of Helium in Shroud (%)] X100. bgs = Below ground surface.
% = Percent.
<0.100 = Not detected above the noted laboratory reporting limit. -- = Not calculated, helium not detected in sample.

SVP-01
SVP-02
SVP-03
DRAFT
5367 of 11211

ATTACHMENT A
Drilling and Encroachment Permits
DRAFT
5368 of 11211
ORDINANCE: 04023

SAN MATEO COUNTY HEALTH

ENVIRONMENTAL
... HEALTH SERVICES
PERMIT 20-0987
PIE: 2010 MQmI_{)JllNG-WELLS - INSTALLATION/DESTRUCTION FACILITY:
4TH & RAILROAD PARKING LOT,
CONTRACTOR: CASCADE DRILLING
TERMS & CONDITIONS:
;::y
0 u

CONSTRUCT SOIL BORINGS
' "' CONSULTANT: RMD ENVIRONME
PROJECT MGR: KIRSTEN DUEY
DATE ISSUED: 7 /13/2020

AL ESTATE GROUP
ST STE 150

0.00 KIAN ATKINSON

ENVIRONMENTAL HEALTH SPECIALIST
EXPIRATION DATE: 11/13/2020
THIS CERTIFICATE IS NONTRANSFERABLE AND MUST BE POSTED ON-SITE IN A CONSPICUOUS PLACE. 747
747
DRAFT
5369 of 11211
DRAFT
5370 of 11211

SUBSURFACE DRILLING PERMIT APPLICATION
REQUIREMENTS:

An accurate and correct map must be submitted with the application and include the following: north arrow, existing and historic site features, existing and proposed well/boring locations with ID's to scale, property lines and any other pertinent information. A work plan describing the drilling and construction/destruction methodology must be submitted to County staff.

A complete application with appropriate fees must be submitted 3 working days in advance of drilling and notification of start date and time must be provided at least 2 working days prior to drilling. The permit is subject to both General and Special Conditions stated below. A copy of the approved Subsurface Drilling Permit must be available on site while work related to the permit is being performed. Drilling may begin at the notified date and time whether County staff is present or not.

GENERAL CONDITIONS:

A. Field notification must be provided to GPP drilling inspection staff at least 2 full working days prior to the start of drilling.

GPP Caseworker also must be notified if site is associated with a remedial action case.

B. Well and boring construction and destruction under this permit are subject to the Standards for the Construction of Wells in San Mateo County, County Groundwater Protection Program (GPP) Guidelines, Policies & Procedures, the State Water Well Standards, and any instructions by a Health Department representative.

C. Well/Boring Owner, Driller, and Responsible Professional assume responsibility for all activities and uses under the permit, including compliance with Workmen's Compensation Laws, and indemnify, defend and save the County of San Mateo, its officers, agents and employees, free and harmless from any and all expense, cost, or liability in connection with or resulting from work or stopped-work associated with the permit, including, but not limited to, property damage, personal injury, wrongful death, and loss of income.

D. All borings must be properly destroyed (grouted/sealed) within 24 hours of drilling, unless special conditions are approved beforehand in writing as part of this permit, and must be continuously protected and stabilized.

E. Analytical results of all soil, vapor, and groundwater samples collected during the execution of drilling under this permit must be submitted to County GPP staff by the Responsible Professional within 60 days of sample collection. If contamination is discovered during drilling, verbal notification to County GPP by the Responsible Professional is required within 72 hours of discovery. Proper storage, labeling & disposal of investigation-derived residual wastes are the responsibility of the consultant unless stated otherwise contractually.

F. Boring logs, well construction details, and finalized as-built location map for all borings/ wells (except geotechnical borings) signed by a Responsible Professional, must be submitted to County GPP by the Responsible Professional within 60 days of drilling/construction/destruction. DWR Form 188 must be filed with the State per water code 13752.

G. Permit is valid only for the purpose specified herein. No change in purpose or required procedures, as described on this permit application, in the associated workplan, or in the special conditions below, will be allowed except upon written permission from the County. Construction aspects can be changed based on conditions encountered in the field.

H. Permit is valid for one mobilization associated with originally permitted boring/well locations only, including contingency locations, and is automatically canceled if not exercised, or if an extension is not applied for and granted within 120 days of the original permit issuance date. Failure to notify staff of cancellation or delay in start time will result in the Consultant being billed an Inspection Cancellation fee if GPP staff attempted to perform an inspection. Fees are listed at smchealth.org/ehfees
I. Wells installed under this permit may not be used for domestic, municipal, agricultural, or irrigation water supply.

J. All work performed must conform to Business and Profession Codes and State Water Well Standards.

K. Top-of-casing elevation of all wells must be surveyed to the nearest 0.01-foot relative to Mean Sea Level or NAVD88 and submitted to County GPP within 60 days of drilling, and to State Geo Tracker as appropriate. Geotechnical wells are exempt from this requirement if a written variance from GPP is obtained prior to drilling.

L. Latitude and longitude of all wells must be surveyed with sub-meter accuracy relative to NAD83 and submitted to County GPP within 60 days of drilling, and to State Geo Tracker as appropriate.

M. Violation of any requirement or general or special permit condition may result in an order by GPP staff to cease work under this permit, correct the violation, potentially re-permit the work as a new mobilization, and potential actions may be taken against the Well Owner, Property Owner, or Responsible Professional by GPP.

SPECIAL CONDITIONS:------------------------------
(agency use only)
For Agency Use Only:

County Approval: FA# Date: 71712020 Rev. 11212020 SMC Ordinance Title 4, Ch 4.68.080 Page 2 of 4 DRAFT
5371 of 11211
SAN MATEO COUNTY HEALTH n iron ntal
u t rot ct101 r
2000 Alameda de las Pulgas, Suile #100
San Mateo, CA 94403
Phone:(650) 372-E200 I Fa>t: (650) 627-8244
smchealth.org/gpp

SUBSURFACE DRILLING PERMIT APPLICATION
Allow three (3) full working days ror processing a complete permit application which includes payment (one permit per parcel). Orllllng start date & time must be sched led with County staff at (650) 4~ 7 or dnllln m r at lent 2 full working days (I.a. .U hours} In advance.

Visit smchealth org/ebfees for Groundwater Protection Program Fees f;,;l)~ OGroundwater MonitoringNapor Well Installation~ Construct Soil Boringsl(vanance request if to "be left open >24 hrs) D Groundwater MonitoringNapor Well Destruction Extension of Permit # -+-----------~ No. of Wells No. of Borings 1 Well/Boring Names _S_B_.1 _____ _ D Environmental O County GPP (permit approval is not to tJ considered work plan approval) DRILLING D Geotechnical D RWQCBIDTSC/USEPA (Provide approv~l letter) [81 None (i.e. voluntary) ••
Agency Case# Assessor's Parcel# (required) 034179050 (one per permit) Drilling Location Address: 4th and Railroad Parking Lot (415 South B Street} City: San Mateo Zip: 94401 ------ To Be Constructed In: 18J Public Property D Private Property D Refuse I Maximum Proposed Depth (wellS/borings) 30 (feet) Drilling Method: _D_ire_c_t..._p_u_sh ____ _ Boring Diameter. 4 inches Casing Diameter.NIA Filter Pack lnterval:N/A I Screen Interval: NIA ----- Destruction Method: D Pressure Grouting (provide well bonstruction logs and grout calcs) (6 gallons water max/94 lb cement, up to 5% bentonite) O Overdrilling (guide rods for total epth prior to starting required) Name: Prometheus Real Estate Group Contact Person: Massimo Kaz ~----+------------~ Address:1900 South Norfolk Street, Suite 150 City, State, Zip:San Mateo, ~A. 94403 ~-----r------------ T e I e phone: 650-931-3538 Email: _m_k_a_z@;:oc..:..p_ro_m_e_th_e_u_s_re-'9..,.._co_m________ _ It is my responsibility to notify the County of any known changes in the purpose of this well/boring from that which Is indicated on this application. lo submit i dication of annual usage of wells to the County, and to maintai the well in good condition. (Left9r signed by well/boring owner/contact person. containing above language and attesting lo knowledge of all permit requirements and cooditi9ns, may be substituted for signature.) Well/Boring Owner'siContact Person's Signature: I Date:

Name: City of San Mateo Contact Person:_K_a_re_n_M_a,;:;g_a ... la_n_e_s _________ _ Address:330 W 20th Avenue City, State, Zip: San Mateo, CfA, 94403 ----'-+-------------- Te I e phone: 650-522-7300 Email: [email protected] I understand that a wellfboring is being installed on my property. I agree to notify the County and Well Owner of any known damage or future access issues to the well (Letter signed by properly owner, containing above language. or encroachment pef!Tlit may be sVbstJtuted for signature) Property Owner's Signature: S TI H€1 N - AC 1 i2. t' I Date:

Drilling Company: _c_a_sc_a_d_e_D_n_ll_in_g~-------- Contact Person: Matthew Toi rt Address:3451 Collins Avenue City, State, Zip: Richmond, Cf\, 94806 Telephone: 510-478-0858 Email: [email protected] C57 Drillek License # 1058336 I certify that the well/boring will be constructed in compliance with the conditions of this pennit (see reverse), e San Mateo -~------ County Well Ordinance, and the State Water Well Standards. and that lhe license listed above is considered current and active by the, Contractors Stale License Board.

Driller's Signature: Date:

Consultant Company: RMD Environmental Solutions, Inc.

Address:1371 Oakland Boulevard, Suite 200
Telephone: 925-683-8177
Field Contact & Cell# (if known): Bianca Angulo (951-3104726) Project Manager. _K_ir_st_e_n_D_u_µy ___________ _
City, State, Zip:Walnut Cree~. CA, 94596
Email: [email protected] I
I certify thal this application is correct to the best of my knowledge and the well/boring will be constructed/de!jlroyed in compliance wilh t~e conditions of this permit (see revers.e). the San Mateo County Well Ordinance, and the State Water W~ll Standards. I urjderstand that I am responsible for General Conditions E, F, K, and L of this pennit and if I indicated the purpose of drilling is geotechnical, then Jlo one Will use the boring to collect any samples for environmental analyses. If there is a change in Responsible Professional. I will notify San Mateo County GPP staff.

Responsible Professional's Name (Please print legibly):.:..P-=a-=o-=la..;..G-=o-=m-'-e_z-_B-'-ir..;..e_n_b_au_m ________ ___ _____ _ Responsible Professional's Signature Date: :
-------------------.,---- Ca Ii f om i a Professional Geologist (PG) No. or Civil Engineer (PE No. R.,..,. 11212020 ---------- ----------- DRAFT
5372 of 11211

SAN MATEO COUNTY HEALTH
ENViRONMENTAL

HEALTH SERVICES
£ n-"ironmenr.1• nco\ lth S P.tV!C •!S
Groundwlltcr Protect.!0 11 Piog rr.
2000 Alameda de las Pulgas, Suite #100
San Mateo, CA 94403
Phone:(650} 372-6200 I Fax: (650) 627-8244
smchealth.org/gpp

SUBSURFACE DRILLING PERMIT APPLICATION
Allow three (3) full working days for processing a complete permit appllcation which includes payment (one permit per parcel}. Drilling start date & time must be scheduled with County staff at (650) 464-0047 or [email protected] at least 2 full working days (i.e. 48 hours) in advance.

Visit smchealth.orq!ehfees for Groundwater Protection Program Fees D.JRJ•"'JSE OF
A='F~. c:.:.ro~.J
0 Groundwater MonitoringNapor Well Installation !g) Construct Soil Borings (variance request if to be left open >24 hrs) D Groundwater MonitoringNapor Well Destruction Extension of Permit# ~~~~~~~~~~~~~ No. of Wells No. of Borings 1 Well/Boring Names SB-1

PURPOSE OF

DRILLING
0 Environmental
D Geotechnical
D County GPP (permit approval is not to be considered work plan approval) D RWQCB/DTSC/USEPA (Provide approval letter) ~ None (i.e. voluntary)

SITE I DRILLING INFORMATION
Agency Case# Assessor's Parcel# (required} 034179050 (one per permit) ~~~~~~~~~~- -~~~~~~~~~~~~ Drilling Location Address: 4th and Railroad Parking Lot (415 South B Street) To Be Constructed In: ~Public Property D Private Property D Refuse City: San Mateo Zip: 94401
Maximum Proposed Depth (wells/borings) 30 (feet) Drilling Method: Direct push --~~~~~~-~~~~- -~~~~~~~-- Boring Diameter. 4 inches Casing Diameter: NIA Filter Pack lnterval:N/A Screen Interval: NIA ----- Destruction Method:
(6 gallons water max/94 lb cement, up to 5% bentonite)
D Pressure Grouting (provide well construction logs and grout calcs) D Overdrilling (guide rods for total depth prior to starting required) WELUBORING OWNER (Well/boring owner name or contact person should match signature) Name: Prometheus Real Estate Group
Address:1900 South Norfolk Street, Suite 150
Telephone: 650-931-3538
Contact Person: Massimo Kaz ~~~~-~~~~~--~-~~--
City, State, Zip:San Mateo, CA, 94403
Email: [email protected]
It is my responsibility to notify the County of any known changes in the purpose of this well/boring from that which is indicated on this application, to submit indication of annual usage of wells to the County, and to maintain the well in good condition. (Letter signed by well/boring owner/contact person, containing above language and attesting to knowledge of all permit requirements and ccnditions, may be substituted for signature.) Well/Boring Owner's/Contact Person's Signature: Date:

PROPERTY OWNER (Name as appears on assessor's rotes should match signature) Name: City of San Mateo
Address:330 W 20th Avenue
Telephone: 650-522-7300
Contact Person: Karen Magallanes
City, State, Zip:San Mateo, CA, 94403
Email: [email protected]
I understand that a well/boring is being installed on my property. I agree to notify the County and Well Owner of any known damage or future access issues to the well (Letter signed by property owner, containing above language, or encroachment permit may be substituted for signature) Property Owner's Signature: Date:

DRILLING COMPANY
Drilling Company: Cascade Drilling Contact Person: Matthew Tolbert -~~~~~~~~-~~~~~~~- Address: 3451 Collins Avenue City, State, Zip: Richmond, CA, 94806 -~~~~~--~~-~~~~--~ Telephone: 510-478-0858 Email: [email protected] C57 Drillers License# 1058336 -------- 1 certify that the welVboring will be constructed in compliance with the conditions of this permit (see reverse), the San Mateo County Well Ordinance, and the State Water Well Standards, and that the license listed above is considered current and active by the Contractors State License Board.

Driller's Signature: . ~~ ;· ,:;,-:- :="::.;".i.'::';.:;' Date:

CONSULTANT COMPANY
Consultant Company: RMD Environmental Solutions, Inc.

Address:1371 Oakland Boulevard. Suite 200
Telephone: 925-683-8177
Field Contact & Cell# (If known): Bianca Angulo (951-310-4726) ProjectManager._K_irs~te_n_D~u_ey.__~-~~~---~~~­
City, State, Zip: Walnut Creek, CA, 94596
Email: [email protected]
I certify that this application is correct to the best of my knowledge and the welVboring will be constructed/destroyed in compliance with the conditions of this permit (see reverse}, the San Mateo County Well Ordinance, and the State Water Well Standards. I understand that I am responsible for General Conditions E, F, K, and L of this permit and if I indicated the purpose of drilling is geotechnical, then no one will use the boring to collect any samples for environmental analyses. If there is a change in Responsible ProfessiOnal, I will notify San Mateo County GPP staff.

Responsible Professional's Name (Please print legibly):.:...P..;;a..;;o....:la:.....:.G..;;o.:....m....:e.:....z_-B_.:....ire.:....n_b_a_u_m ________________ _ Responsible Professional's Signature: Date: ~-~~~~~~~~-~~~~~~---~~~ California Professional Geologist (PG) No. Rev. 1/212020 ---------- or Civil Engineer (PE) No. ~~-~--~~~~~ DRAFT
5373 of 11211

SAN MATEO COUNTY HEALTH

ENVIRONMENTAL

HEALTH SERVICES
Environmental Hnalth Services
G row1dwote r P ro te ct ion P ro g ram
2000 Alameda de las Pulgas, Suite #100
San Mateo, CA 94403
Phone:(650) 372-6200 I Fax: (650) 627-8244
smchealth.org/gpp
SUBSURFACE DRILLING. PERMIT APPLICATION
Allow three (3) full working days for processing a complete permit application which includes payment (one permit per parcel). Drilling start date & time must be scheduled with County staff at (650) 464-0047 or [email protected] at least 2 full working days (I.e. 48 hours) in advance.

Visit smchealth.org/ehfees for Groundwater Protection Program Fees

PURPOSE OF

APPLICATION
D Groundwater MonitoringNapor Well Installation f8l Construct Soil Borings (variance request if to be left open >24 hrs) D Groundwater MonitoringNapor Well Destruction Extension of Permit t1 ~~~~ ~~~~~~~~ No. of Wells No. of Borings 1 Well/Boring Names SB-1

PURPOSE OF

DRILLING
0 Environmental .. D County GPP (permit approval is not to be considered work plan approval) 0 Geotechnical _ __ _ 0 RWQCBIDTSCIUSEPA (Provide approval letter) [gJ None (i.e. voluntary)

SITE I DRJLLING INFORMATION
Agency Case# Assessor's Parcel# (required) 034179050 (one per pennit) ~~~~~~~~~~~~- D ri Iii n g Location Address: 4th and Railroad Parking Lot (415 South B Street) City: San Mateo Zip: 94401 To Be Constructed In: 18) Public Property O Private Property O Refuse Maximum Proposed Depth (wells/borings) 30 (feet) Drilling Method: Direct push ~~~~~~~~~~~~~- ~___::...:..;;...!,;.,.;;;..;;.._~~~~- Boring Diameter: 4 inches Casing Diameter:N/A Filter Pack lnterval:N/A Screen Interval: NIA ~~--~ ~----- -~~~- Destruction Method: O Pressure Grouting (provide well construction logs and grout calcs) (6 gallons water max/94 lb cement, up to 5% bentonite) O Overdrilling (guide rods for total depth prior to starting required) WELL/BORING OWNER (Well/boring owner name or contact person should match signature) Name: Prometheus Real Estate Group Contact Person: Massimo Kaz ~~~~~~~~~~~~~~~~~ Address: 1900 South Norfolk Street, Suite 150 City, State, Zip:San Mateo, CA, 94403 ~~~~_:___:__:_~~~~~~~~~~- Te I e phone: 650-931-3538 Email: _m_k_a_z_,,@...,p_r_o_m_e_th_e_u_s_re_,g._._co_m________ _ _ It is my responsibility to notify the County of any known changes in the purpose of this well/boring from that which Is Indicated on this application, to submit indication of annual usage of wells to the County, and to maintain the well in goOd condition . (Letter signed by well/boring owner/contact person, containing above language and attesting to knowledge of all permit requirements and conditions, may be substituted for signature.) Well/Boring Owner's/Contact Person's Signature: Date:

PROPERTY OWNER (Name as appears on assessor's roles should match signature) Name: City of San Mateo
Address:330 W 20th Avenue
Telephone: 650-522-7300
Contact Person: Karen Magallanes
City, State, Zip:San Mateo, CA, 94403
___ Email: [email protected]
I understand that a well/boring is being installed on my property. I agree to notify the County and Well Owner of any known damage or Mure access issues to the well (Letter signed by property owner, containing above language, or encroachment pennit may be substituted for signature) Property Owner's Signature: Date:

DRILLING COMPANY
Drilling Company: Cascade Drilling Contact Person:_M_a_tt_h_ew_T_o_lb_e_rt __________ _ Address:3451 Collins Avenue City, State, Zip: Richmond, CA, 94806 ~~~--'~-'-~~~~~~ ~~~- Te 1 e phone: 510-478-0858 Email: [email protected] C57 Drillers License# _10_5_8_3_3_6 ____ _ I certify that the well/boring will be constructed in compliance with the conditions of this permit (see reverse), the San Mateo County Well Ordinance, and the State Water Well Standards, and that the license listed above is considered current and active by the Contractors State License Board.

Driller's Signature: Date:

CONSULTANT COMPANY
Consultant Company: RMD Environmental Solutions, Inc.

Address:1371 Oakland Boulevard, Suite 200
Telephone: 925-683-8177
Field Contact & Cell# (if known): Bianca Angulo (951-310-4726) Project Manager: _K.ccir...::.s.ccte...::.n...::.D::....::..u...::.ey,__ ______ _____ _ City, State, Zip:Walnut Creek, CA, 94596
Email: [email protected]
I certify that this application is correct to the best of my knowledge and the well/boring will be constructed/destroyed in compliance with the conditions of this permit (see reverse), the San Mateo County Well Ordinance, and the State Water Well Standards. I understand that I am responsible for General Conditions E, F, K, and L of this permit and if I indicated the purpose of drilling is geotechnical, then no one will use the boring to collect any samples for environmental analyses. If there Is a change In Responsible Professional, I will notify San Mateo County GPP staff.

Responsible Professional's Name (Please print legibly)::_P:.::a:.:: o::.:la:.....::G:.::o.:.:. m::.:e::z:_-B::.:.:_ire=n:..::b:.:a:.:u:.m:..:._ ____ ___________ _ Responsible Professional's Signature: ... g~i,~;",!Yo';,~~~~nb m Date: ..:..7.:...: /6:..;./2::.0.:..;2=-0'----- California Professional Geologist (PG) No. _9_09_5 _______ _ Rev. 1/2J2020 0r Civil Engineer (PE) No. ~~~~~~~~~~~ DRAFT
5374 of 11211
RM D 415 & 445 SOUTH B STREET SAN MATEO, CALIFORNIA

ENVIRONMENTAL
SOL IONS '"0 "°"0 · 0"' OR'"' " UT PROPOSAL 0712020 ow
LEGEND
Proposed Grab Groundwater
.:I Sample

PROPOSED SAMPLE LOCATIONS
•
FIGURE
1 DRAFT
5375 of 11211
July 10, 2020
Karen Magallanes
City of San Mateo Public Works Engineering
330 W. 201
h Avenue
San Mateo, California 94403
Subject: Letter of Intent for Encroachment Permit
415 and 445 South B Street
San Mateo, California
Ms. Magallanes:

RMD Environmental Solutions, Inc. (RMD) is conducting a due diligence investigation for the property located at 415 and 445 South B Street in San Mateo, California (Subject Property) to evaluate subsurface conditions which may trigger mitigation measures or possible environmental liability should our client purchase the property.

SCOPE OF WORK
RMD is planning to advance three soil borings in the City of San Mateo right-of-way for collection of grab groundwater samples as part of a due diligence investigation for our client. The three soil borings will be installed at the approximate locations shown on the attached figure. The borings will be advanced using a direct-push drill rig to the target depth of 30 feet below ground surface. A grab groundwater sample will be collected from each soil boring and the borings will be backfilled with neat cement grout and capped with concrete to match the surrounding grade. The drilling activities will be conducted by a California-licensed driller with the oversight of RMD.

KEY ASSUMPTIONS
Hot asphalt patching in the city right-of-way is not required for boring locations.

PROPOSED SCHEDULE
The proposed drilling is tentatively scheduled for July 27, 2020 pending approval of this encroachment permit application.

Sincerely,
RMD ENVIRONMENTAL SOLUTIONS, INC.

Doug Whichard
Project Scientist
1371 Oakland Boulevard, Suite 200, Walnut Creek, CA 94596 • www.rmdes.net DRAFT
5376 of 11211
ClTY OF SAN MATEO - DEPARTMENT OF PUBLIC WORKS

ENCROACHMENT PERMIT APPLICATION
Re uired for all activities in the ublic rieht·of-wa ROW) or ublic casement S.M.M.C. l7.08 COMPANY: Rt..f\) €AIV/R<JNt-\C.NT1\l, £w.11~, ll'JC. CONTRACTOR'S LICENSE NO: \O lo?..I ADDRESS: ! SAN MA TEO BUSINESS LICENSE NO:

CITY: lJJAL.Nl.A.1" Cfl.t."E\'- ZIP: 9'159 TELEPHONE: 92:;- I/ We hereby apply f or an encroachment permit to perform the following work in accordance with the City of San Mateo Municipal Code Chapter J 7.08: 'Pt:\Jl.\l-ING l..oTS rJ€11fL I. Project Address: Y\S + LiL.\S S · 13 SI 2. Propetty Owner: C 11"1 Of ~AtJ MATEO

3. Describe work requested in the right-of-way: V&f.Z.TICAt.. SOIL Bo2.1iJ6i Po/L Cg,.L€Cn°""' Qf $e•L- + b/2'>oNOlAJ47€12.. S°AMP~S

4. On site contact name and cell phone number: _, />:;.;:ou=-iC..__...::tV=-:...rl_t..;;.. C ....... rl'"'""' IHlJ) ;..;..;...:.i"----'c..::=-=::....-.L...:::.-'- 'l _::;_'{..;..:f _ _ _ __ _

5. Proposed Start Date: ,TUt..'( 21, 2oZ.O

6. Project related to current building permit?

7. List any other work at site:

8. Project related to dock installation?

9. Project related to planning application?
I 0. Drawing of proposed \i ork attached?
Estimated Completion Date: J1>1.}j Z9, 2oZo
No S. Yes 0 lfyes, building permit number: ------
o 12!1 Yes 0
No ti Yes D
o 0 Yes t'iil
If yes, DOCK#:

If yes, PA#: ----------
*I/We agree to defend and indemnify the City, its officers, employees, and agents against, and will hold and save them and each of them harmless from any and all actions, claims, damages to persons or properties, penalties. obligations, and liabilities that may be asserted by any person arising out of the negligent or intentionally tortious acts, negligent errors, or omissions of mine/ours, my/our officers, agents, employees, contractors, subcontractors, or invitees related to the work described in this p, lie I/We a/lest that the above information is true lo the best of my knowledge. 09- zoz.o
Certificate of Insurance on File? Yes 0 o 0 Is Insurance Site or Project Specific? Yes 0 1 o 0
Insurance Expiration Date: -------- Insurance reviewed by: ----------------- Permit Fee: $ ___________ _
(Anach fee calculation sheet, if applicable)
Permit Security Deposit: S. _______________ _
Check 0
Cash 0
Letter of Credit 0
Performance Bond 0
Credit Card D
C.D. 0
Photocopy of payment/City receipt attached to this form? Yes 0 No 0 Refund of security deposit will be mailed to "Applicant" above, unless otherwise noted:-------- - -------- Miscellaneous notes: - - - - - ------- ------------------------- Reviewed and approved by Public Works staff: Reviewed and approved by Building/Planning staff, if applicable:

Name: I Date: Name: , -Date:
0 lp,.YWE:<GIA. FORMSIE:<CRHAPP DOC Rev 07/09
DRAFT
5377 of 11211
RM D j 415 & 445 SOUTH B STREET SAN MATEO, CALIFORNIA ENVIRONMENTAL SOLUTIONS '"0 ""'0 M" 0 ' ·" ' "'" PROPOSAL 0712020 OW LEGEND
Proposed Grab Groundwater
.:I Sample

PROPOSED SAMPLE LOCATIONS
•
FIGURE
1 DRAFT
5378 of 11211
California MUTCD 2014 Edition
(FHWA's MUTCD 2009 Edition, including Revisions I & 2, as amended for use in California) Figure 6H-3. Work on the Shoulders (TA-3)
G20-1
W21-5
T
Shoulder taper
(see Note 7)
G20-2
(optional)
Note: See Tables 6H-2 and 6H-3
for the meaning of the
symbols and/or letter
codes used in this figure.

Chapter 6H - Typical Applications
Part 6 - Temporary Traffic Control
Typical Application 3
(optional)
Shoulder taper
(see Note 7)
_,
1/3 L

November 7, 2014
DRAFT
5379 of 11211
California MUTCD 2014 Edition
(FHWA's MUTCD 2009 Edition, including Revisions I & 2, as amended for use in California)

Figure 6H-6. Shoulder Work with Minor Encroachment (TA-6) G20-2
W20-1
G20-2
(optional)
Chapter 6H - Typical Applications
Part 6 - Temporary Traffic Control
A
"
Typical Application 6
(optional)
Note: See Tables 6H-2 and
6H-3 for the meaning
of the symbols and/or
letter codes used in
this figure.

Truck-mounted
attenuator
(optional)
l
Buffer space
{optional)
1/3 L
1 A
W20-1
November 7, 2014
DRAFT
5380 of 11211
ORDINANCE: 04023
FACILITY:

SAN MATEO COUNTY HEALTH
.. ENVIRONMENTAL
• .._ .. !ii HEALTH SERVICES
PERMIT 20-0988
PIE: 2010 - INSTALLATION/DESTRUCTION
E 5TH AVE BLK SB ST/S RAILROA'D AVE, SAN MATEe> AL ESTATE GROUP ST STE 150
CONTRACTOR: CASCADE DRILLING
DATE ISSUED: 7/13/2020
v
0 u 0.00

KIAN ATKINSON
ENVIRONMENTAL HEALTH SPECIALIST EXPIRATION DATE: 11/13/2020 THIS CERTIFICATE IS NONTRANSFERABLE AND MUST BE POSTED ON-SITE IN A CONSPICUOUS PLACE.

DRAFT
5381 of 11211
DocuSign Envelope ID: 58A04F72-80DE-4ABF-87BB-9923988CDECO , . .. ~ SAN MATEO COUNTY HEALTH
1; ENVIRONMENTAL
.. !#) HEALTH SERVICES
Environmental Health Services
Groundwater Protection Program
2000 Alameda de las Pulgas, Suite #100
San Mateo, CA 94403
Phone:(650) 372-6200 I Fax: (650) 627-8244
smchealth.org/gpp

SUBSURFACE DRILLING PERMIT APPLICATION
Allow three (3) full working days for processing a complete permit application which includes payment (one permit per parcel). Drilling start date & time must be scheduled with County staff at (650) 464-0047 or drjlling@smcgov org at least 2 full working days (i.e. 48 hours) in a~ru;e TY Visit smchealth.org/ehfees for Groundwater Protection Program Fees t;;; • ,, , , \\\t!FNTAL HEALTH

PURPOSE OF

APPLICATION
OGroundwater MonitoringNapor Well Installation lg] Construct Soil Borings (variance request if to be left open >24 hrs) D Groundwater MonitoringNapor Well Destruction Extension of Permit# I! :I 1 0 2020 No. of Wells No. of Borings :.! Well/Boring Names ~~-:.!. ~~-J

DRILLING

SITE I DRILLING INFORMATION
Agency Case# Assessor's Parcel# (required) ROW (one per permit) ---------- -'-'-"--'--'-----------~ Drilling Location Address: E 5th Ave Block between SB St and S Railroad Ave City: ~an Mateo To Be Constructed In: lg] Public ProP,erty D Private Property D Refuse Zip: ~44U1
Maximum Proposed Depth (wells/borings) 30 (feet) Drilling Method: uirect push ------------~ --------- Boring Diameter: 4 inches Casing Diameter: NIA Filter Pack Interval: NIA Screen Interval: NIA ----- Destruction Method:
(6 gallons water max/94 lb cement, up to 5% bentonite)
D Pressure Grouting (provide well construction logs and grout calcs) D Overdrilling (guide rods for total depth prior to starting required) WELL/BORING OWNER (Well/boring owner name or contact person should match signature) Name: Prometheus Real Estate Group
Address: 1900 South Norfolk Street, Suite 150
Telephone: 650-931-3538
Contact Person: Massimo Kaz -""'-'-~="-'""--'--'='--------------~ City, State, Zip: San Mateo CA 94403
Email: [email protected]
It is my responsibility to notify the County of any known changes in the purpose of this well/boring from that which is indicated on this application, to submit indication of annual usage of well ~~l'.l!.I~ . and to maintain the well in good condition. (Letter signed by well/boring owner/contact person, containing above language and attesti g ft!l1.Tlet.9J. q: c:}!,, permit requirements and conditions, may be substituted for signature.) Well/Boring Owner's/Contact Person's Signature: Date: 7 /6/2020 Name: City of San Mateo
Address: 330 W 20th Avenue
Telephone: 650-522-7300
Contact Person: Karen Magallanes
City, State, Zip: San Mateo, CA, 94403
Email: [email protected]
I understand that a well/boring is being installed on my property. I agree to notify the County and Well Owner of any known damage or future access issues to the well (Letter signed by property owner, containing above language, or encroachment permit may be substituted for signature) Property Owner's Signature: Date:

DRILLING COMPANY
Drilling Company: Cascade Drilling Contact Person:_M_a_tt_h_e_w_T_o_l_be_rt __________ _ Address: 3451 Collins Avenue City, State, Zip _R_ic_h_m_o_n_d~C_A~9_4_8_0_6 ________ _ Telephone: 510-478-0858 Email: [email protected] C57 Drillers License #-'1"""'0-"-58=--'3"-'3"""6 ____ _ I certify that the well/boring will be constructed in compliance with the conditions of this permit (see reverse), the San Mateo County Well Ordinance, and the State Water Well Standards, and that the license listed above is considered current and active by the Contractors State License Board.

Driller's Signature: Date:

CONSULTANT COMPANY
Consultant Company: RMD Environmental Solutions. Inc.

Address: 1371 Oakland Boulevard, Suite 200
Project Manager: -'-K-"-i""'rs"""te=n-'--=D"""u""'"e .... v ___________ _ City, State, Zip: Walnut Creek. CA. 94596 Telephone: 925-683-8177 Email: [email protected]
Field Contact & Cell# (if known): Bianca Angulo (951-310-4726) I certify that this application is correct to the best of my knowledge and the well/boring will be constructed/destroyed in compliance with the conditions of this permit (see reverse), the San Mateo County Well Ordinance, and the State Water Well Standards. I understand that I am responsible for General Conditions E, F, K, and L of this permit and if I indicated the purpose of drilling is geotechnical, then no one will use the boring to collect any samples for environmental analyses. If there is a change in Responsible Professional, I will notify San Mateo County GPP staff.

Responsible Professional's Name (Please print legibly):....:.P-=a:..:o:..:.;la=-=G:..::oc:..:mc.:..:e==z=--B=-ire=.cn:..:..:b=a=u::..:.m'-'----------------- Responsible Professional's Signature: Date: ----------------------- Ca Ii fo rn i a Professional Geologist (PG) No. Rev. 11212020 ---------- or Civil Engineer (PE) No. ________ ..,__ __ ~Ac1q1~
DRAFT
5382 of 11211

SUBSURFACE DRILLING PERMIT APPLICATION
REQUIREMENTS:

An accurate and correct map must be submitted with the application and include the following: north arrow, existing and historic site features, existing and proposed well/boring locations with ID's to scale, property lines and any other pertinent information. A work plan describing the drilling and construction/destruction methodology must be submitted to County staff.

A complete application with appropriate fees must be submitted 3 working days in advance of drilling and notification of start date and time must be provided at least 2 working days prior to drilling. The permit is subject to both General and Special Conditions stated below. A copy of the approved Subsurface Drilling Permit must be available on site while work related to the permit is being performed. Drilling may begin at the notified date and time whether County staff is present or not.

GENERAL CONDITIONS:

A. Field notification must be provided to GPP drilling inspection staff at least 2 full working days prior to the start of drilling.

GPP Caseworker also must be notified if site is associated with a remedial action case.

B. Well and boring construction and destruction under this permit are subject to the Standards for the Construction of Wells in San Mateo County, County Groundwater Protection Program (GPP) Guidelines, Policies & Procedures, the State Water Well Standards, and any instructions by a Health Department representative.

C. Well/Boring Owner, Driller, and Responsible Professional assume responsibility for all activities and uses under the permit, including compliance with Workmen's Compensation Laws, and indemnify, defend and save the County of San Mateo, its officers, agents and employees, free and harmless from any and all expense, cost, or liability in connection with or resulting from work or stopped-work associated with the permit, including, but not limited to, property damage, personal injury, wrongful death, and loss of income.

D. All borings must be properly destroyed (grouted/sealed) within 24 hours of drilling, unless special conditions are approved beforehand in writing as part of this permit, and must be continuously protected and stabilized.

E. Analytical results of all soil, vapor, and groundwater samples collected during the execution of drilling under this permit must be submitted to County GPP staff by the Responsible Professional within 60 days of sample collection. If contamination is discovered during drilling, verbal notification to County GPP by the Responsible Professional is required within 72 hours of discovery. Proper storage, labeling & disposal of investigation-derived residual wastes are the responsibility of the consultant unless stated otherwise contractually.

F. Boring logs, well construction details, and finalized as-built location map for all borings/ wells (except geotechnical borings) signed by a Responsible Professional, must be submitted to County GPP by the Responsible Professional within 60 days of drilling/construction/destruction. DWR Form 188 must be filed with the State per water code 13752.

G. Permit is valid only for the purpose specified herein. No change in purpose or required procedures, as described on this permit application, in the associated workplan, or in the special conditions below, will be allowed except upon written permission from the County. Construction aspects can be changed based on conditions encountered in the field.

H. Permit is valid for one mobilization associated with originally permitted boring/well locations only, including contingency locations, and is automatically canceled if not exercised, or if an extension is not applied for and granted within 120 days of the original permit issuance date. Failure to notify staff of cancellation or delay in start time will result in the Consultant being billed an Inspection Cancellation fee if GPP staff attempted to perform an inspection. Fees are listed at smchealth,org/ehfees
I. Wells installed under this permit may not be used for domestic, municipal, agricultural, or irrigation water supply.

J. All work performed must conform to Business and Profession Codes and State Water Well Standards.

K. Top-of-casing elevation of all wells must be surveyed to the nearest 0.01-foot relative to Mean Sea Level or NAVD88 and submitted to County GPP within 60 days of drilling, and to State Geo Tracker as appropriate. Geotechnical wells are exempt from this requirement if a written variance from GPP is obtained prior to drilling.

L. Latitude and longitude of all wells must be surveyed with sub-meter accuracy relative to NAD83 and submitted to County GPP within 60 days of drilling, and to State Geo Tracker as appropriate.

M. Violation of any requirement or general or special permit condition may result in an order by GPP staff to cease work under this permit, correct the violation, potentially re-permit the work as a new mobilization, and potential actions may be taken against the Well Owner, Property Owner, or Responsible Professional by GPP.

SPECIAL CONDITIONS:-------------------------------
(agency use only)
For Agency Use Only:

County Approval: FA# Date: 71712020 Rev. 11212020 SMC Ordinance Title 4, Ch 4.68.080 Page 2 of4 DRAFT
5383 of 11211
SAN MATEO COUNTY HEALTH n iro" M rv1c
o nd t on Pro
000 Alameda de las Pulgas. Suite #100 l I San Mateo, CA 94403 hone (650) 372-6200 I Fax: (650) 627-8244
SUBSURFACE DRILLING PERMIT APPuclr~~~org/gpp Allow three (3) full working days for processing a complete permit application which includes payment (one permit per parcel). Drilling &tart ct.te & time must be scheduled with County staff at (650) 464-0047 or dnlli sm .or at least 2 full working days (I.e. 48 hours) In advance.

Visit smchealth orglehfees for Groundwater Protection Program Fees 0 Groundwater MonitoringNapor Well Installation 18] Construct Soil Borings 1(variance request if to be left open >24 hrs) D Groundwater MonitoringNapor Well Destruction Extension of PenTiit # ' --.....~~~~~~~~--.-~~~ No. of Wells No. of Borings 2 Well/Boring Names SB-g. SB-3

PURPOSE OF

DRILLING
D Environmental · • O County GPP (permit approval is not to t>$ considered work plan approval) D Geotechnical D RWQCB/DTSC/USEPA (Provide approvl.1 letter) [8] one (i.e. voluntary) •• •
Agency Case # Assessor's Parcel # (required) ROW (one per permit) --~~~~--.-~~~ ~~ Drilling Location Address: E 5th Ave Block between S B St and S Railroad Ave City: San Mateo Zip: 94401 To Be Constructed In: ~Public Property D Private Property D Refuse Maximum Proposed Depth (wells/borings) 30 (feet) Drillin Method: _D_irec_t..._p_u_sh ____ _ Boring Diameter: 4 inches Casing Diameter: NIA Filter Pack lnterval:N/A ) Screen Interval: N/A ---- Destruction Method: D Pressure Grouting (provide well rnstruction logs and grout calcs) (6 gallons water max/94 lb cement, up to 5% bentonite) O Overdrilling (guide rods for total depth prior to starting required) VtELUBORJNG OWNER (Well/boring owner name or contact per•on sh~ul4_ ma~~h signature) Name: Prometheus Real Estate Group
Address: 1900 South Norfolk Street, Suite 150
Telephone: 650·931-3538
Contact Person: Massimo Ka ~~~~--.-~~~~~~~~~~ ~
City, State, Zip:San Mateo, A, 94403
Email: mkaz
,;;;.;.;.;.;:;;;;;.:s.;a;~.;.;.;;..;;..;.;;~:....::..:i'-'..=..:::..:..:..:..~~~~~ ~~~ It is my responsibility to notify the County of any known changes in the purpose of this well/boring from hat which is indicated on this application, lo submit indication of annual usage of wells to the County. and to maintain the well in goCJ4 condition. (letter signed by well/boring owner/contact person, C011taining above language and attesting to knowledge of all permit requirements and condifi6ns. may be substil.uted for signature.) Well/Boring Owner's/Contact Person's Signature: Dale:

Name: City of san Mateo Contact Person:_K_a_re_n_M_a_ga_,.....la_ne_s __________ _ ~ Address:330 W 20th Avenue City, State. Zip:_s_a_n_M_a_te_o_, -;q_A_. _944_ 0_3 _______ _ Telephone: 650-522-7300 Email: [email protected] I understand that a well/boring is being installed on my property. I agree to notify the County and Well Owner of any known damage or Mure access issues to the well (Letter signed by property owner, containing above language. or encroachment permit may be subst11uled for signature) Property Owner's Signature: (' M rl . Date:
. . .

Drilling Company: Cascade Drilling Contact Person: Matthew Toi ~~~~~-=-~~~~--=-~~~~ -~~~~--~~~~~~~~~~~ Address:3451 Collins Avenue City, State, Zip: Richmond, CA, 94806 Telephone: 510-478-0858 Email: [email protected] C57 Driller;s License# _10_5_8_3_36 ____ _ I certify that the well/boring will be constructed in compliance with the conditions of this permit (see reverse), fie San Mateo County Well Ordinance, and the State Waler Well Standards, and !hat the license listed above is considered current and active by thelContractors Stale License Board.

Driller's Signature: .. . Date:

Consultant Company: RMD Environmental Solutions, Inc. Project Manager: irs_te_n_D _u'---~- --- Address: 1371 Oakland Boulevard, Suite 200 City, State, Zip:Walnut Creek, CA, 94596 Telephone: 925-683-8177 Email: [email protected] I ~--"-=~~~~-1~~~~~~~~~~ F i e Id Contact & Cell # (if known): Bianca Angulo (951-310-4 726) I I certify thal this application is correct to the best of my knowledge and the well/boring will be constructed/destroyed in compliance with the condlUoos of this permit (see reverse), lhe San Mateo County Well O'dinance, and the State Water Well Standards. I understand lhat I am responsible for General Conditions E, F, K, and L of this permit and if I indicated the purpose or drilling is geotechnfcal, then ~o one will use the boring to collect any samples for env1ronmen1a1 analyses. 1r inere Is a change in Responsible ProfessiOnal. I will notify San Mateo County GPP staff.

Responsible Professional's Name (Please print legibly): Paola Gomez-Birenbaum I Responsible Professional's Signature:-------------- ------+---- Date:

California Professional Geologist (PG) No. Rel/1/2/2020 ---------- or Civil Engineer (PE No. _ _ _ ______ _ _
DRAFT
5384 of 11211

SAN MATEO COUNTY HEALTH

ENVIRONMENTAL

HEALTH SERVICES
Environmental Health Services
Grou nriwator Prote c tion P rograrn
2000 Alameda de las Pulgas, Su~e #100
Sen Mateo, CA 94403
Phone:(650) 372-6200 I Fex: (650) 627-8244
smcheallh.org/gpp

SUBSURFACE DRILLING PERMIT APPLICATION
Allow three (3) full working days for processing a complete permit application which includes payment (one permit per parcel). Drilling start date & time must be scheduled with County staff at (650) 464-0047 or [email protected] at least 2 full working days (I.e. 48 hours) in advance.

Visit smchealth.org/ehfees for Groundwater Protection Program Fees

PURPOSE OF

APPLICATION
D Groundwater MonitoringNapor Well Installation [8] Construct Soil Borings (variance request if to be left open >24 hrs) O Groundwater MonitoringNapor Well Destruction Extension of Permit# ~~~~~~~~~~~~~ No. of Wells No. of Borings 2 Well/Boring Names SB-2, SB-3

PURPOSE OF

DRILLING
0 Environmental l!li!mll D County GPP (permit approval is not to be considered work plan approval) D Geotechnical - D RWQCB/DTSC/USEPA (Provide approval letter) ~ None (i.e. voluntary)

SITE I DRILLING INFORMATION
Agency Case# Assessor's Parcel# (required) ROW (one per permit) ~~~~~~~~~~~~- D ri Iii n g Location Address: E 5th Ave Block between S B St and S Railroad Ave City: San Mateo Zip: 94401 To Be Constructed In: ~Public Property O Private Property O Refuse Maximum Proposed Depth (wells/borings) 30 (feet) Drilling Method: Direct push ~~~~~~~~~~~~~- -~--'----~~~~~- Boring Diameter: 4 inches Casing Diameter: N/A Filter Pack lnterval:N/A Screen Interval: N/A ~~--~ ~~~~~- --~~~ Destruction Method: D Pressure Grouting (provide well construction logs and grout calcs) (6 gallons water max/94 lb cement, up to 5% bentonite) O Overdrilling (guide rods for total depth prior to starting required) WELUBORING OWNER (Well/boring owner name or contact person should match signature) Name: Prometheus Real Estate Group
Address: 1900 South Norfolk Street, Suite 150
Telephone: 650-931-3538
Contact Person: Massimo Kaz ~~~~~~~~~~~~~~~~~-
City, State, Zip:San Mateo, CA, 94403
Email: [email protected]
II is my responsibility to notify the County of any known changes in the purpose of this well/boring from that which is indicated on this application, to submit indication of annual usage of wells to the County, and to maintain the well in good condition. (Letter signed by well/boring owner/contact person, containing above language and attesting to knowledge of all permit requirements and conditions, may be substituted for signature.) Well/Boring Owner's/Contact Person's Signature: Date:

PROPERTY OWNER (Name as appears on assessor's roles should match signature) Name: City of San Mateo
Address:330 W 20th Avenue
Telephone: 650-522-7300
Contact Person: Karen Magallanes
City, State, Zip: San Mateo, CA, 94403
Email: [email protected]
I understand that a well/boring is being installed on my property. I agree to notify the County and Well Owner of any known damage or future access issues to the well (Letter signed by property owner, containing above language, or encroachment permit may be substituted for signature) Property Owner's Signature: Date:

DRILLING COMPANY
Drilling Company: Cascade Drilling Contact Person:_M_a_tth_e_w_T_o_lb_e_rt __________ _ Address:3451 Collins Avenue City, State, Zip: Richmond, CA, 94806 ~~~----'~-'-~~~~~~~~~~~- Te I e phone: 510478-0858 Email: [email protected] C57 Drillers License #_1_05_8_3_3_6 ____ _ I certify that the well/boring will be constructed in compliance with the conditions of this permit (see reverse), the San Mateo County Well Ordinance. and the State Water Well Standards, and that the license listed above is considered current and active by the Contractors State License Board.

Driller's Signature: ,- ... ;t ~~:~= Date:

CONSUL TANT COMPANY
Consultant Company: RMD Environmental Solutions, Inc.

Address:1371 Oakland Boulevard, Suite 200
Telephone: 925-683-8177
Field Contact & Cell# (if known): Bianca Angulo (951-310-4726) Pr~ectManager:_K_ir_st_e_n_D~ue~y~~~~~~~~~~~­
City, State, Zip:Walnut Creek. CA, 94596
Email: [email protected]
J certify that this application is correct to the best of my knowledge and the well/boring will be constructed/destroyed in compliance with the conditions or this permit (see reverse), the San Mateo County Well Ordinance, and the State Water Well Standards. I understand that I am responsible for General Conditions E, F, K, and L of this permit and if I indicated the purpose of drilling is geotechnical, then no one will use the boring to collect any samples for environmental analyses. If there is a change in Responsible ProfesSional, I will notify San Mateo County GPP staff.

Responsible Professional's Name (Please print legibly)::_P.=a-=-ol:..=a:_G=-o=-m.:..:..:.ez=---=B:..:.:ir-=e.:...:n=-ba=-u'-'m-'-'------------------ Responsible Professional's Signature: Date: ~~~~~~~~~~~~~~~~~~~~~~~ California Professional Geologist (PG) No. Rev. 1/2J2020 ---------- or Civil Engineer (PE) No. __________ _ DRAFT
5385 of 11211

SAN MATEO COUNTY HEALTH

ENVIRONMENTAL

HEALTH SERVICES
E1wirorw1cntal Her.Ith Servi ces
Gro\lndwator Pr otection Pro9n:un
2000 Alameda de las Pulgas, Suite #100
San Mateo, CA 94403
Phone:(650) 372-6200 I Fax: (650) 627-8244
smchealth.org/gpp

SUBSURFACE DRILLING PERMIT APPLICATION
Allow three (3) full working days for processing a complete permit application which includes payment (one permit per parcel). Drilling start date & time must be scheduled with County staff at (650) 464--0047 or [email protected] at least 2 full working days (i.e. 48 hours) in advance.

Visit smchealth org/ehfees for Grour:idwater Protection Program Fees

PURPOSE OF

APPLICATION
D Groundwater MonitoringNapor Well Installation IZ] Construct Soil Borings (variance request if to be 1en open >24 hrs) O Groundwater MonitoringNapor Well Destruction Extension of Permit# ------------- No. of Wells No. of Borings 2 Well/Boring Names SB-2, SB-3

PURPOSE OF

DRILLING
O Environmental-· O County GPP (permit approval is not to be considered work plan approval) D Geotechnical _ O RWQCB/DTSC/USEPA (Provide approval letter) ~ None (i.e. voluntary)

SITE I DRILLING INFORMATION
Agency Case# Assessor's Parcel# (required) _R_O:....:W~---------- (one per permit) Drilling Location Address: E 5th Ave Block between S B St and S Railroad Ave City: San Mateo Zip: 94401 To Be Constructed In: [8J Public Property O Private Property D Refuse Maximum Proposed Depth (wells/borings) 30 (feet) Drilling Method: Direct push -----------'------ ___ ,___ _____ _
Boring Diameter: 4 inches Casing Diameter:_N_/A ____ Filter Pack lnterval:_N_IA ____ Screen lnterval:_N_IA __ _ Destruction Method: D Pressure Grouting (provide well construction logs and grout calcs) (6 gallons water max/94 lb cement, up to 5% bentonite) O Overdrilling (guide rods for total depth prior to starting required) WELL/BORING OWNER (Well/boring owner name or contact person should match signature) Name: Prometheus Real Estate Group Contact Person: Massimo Kaz Address: 1900 South Norfolk Street, Suite 150
Telephone: 650-931-3538
----------------- City, State, Zip:San Mateo, CA, 94403 Email: [email protected]
It is my responsibility to notify the County of any known changes in the purpose of this well/boring from that which is indicated on this application, to submit indication of annual usage of wells to the County, and to maintain the well in good condition . (Letter signed by well/boring owner/contact person, containing above language and attesting to knowledge of all permit requirements and conditions, may be substituted tor signature.) Well/Boring Owner's/Contact Person's Signature: Date:

PROPERTY OWNER (Name as appears on assessor's roles should match signature) Name: City of San Mateo Contact Person:_Kc.;:..a_re_n_M_a""ga_l_la_n_e_s _________ _ Address:330 W 20th Avenue City, State, Zip: San Mateo, CA, 94403 ----""-----'------------~ Telephone: 650-522-7300 Email: [email protected] I understand that a well/boring is being installed on my property. I agree' to notify the County and Well Owner of any known damage or future access issues to the well (Letter signed by property owner, containing above language, or encroachment permit may be substituted for signature) Property Owner's Signature: Date:

DRILLING COMPANY
Drilling Company: Cascade Drilling ~~~~~-----~~~===~~~
Contact Person: Matthew Tolbert
Address:3451 Collins Avenue City, State, Zip: Richmond, CA, 94806 Telephone: 510-478-0858 Email: [email protected] C57 Drillers License # 1058336 ~------- I certify that the welVboring will be constructed in compliance with the conditions of this permit (see reverse). the San Mateo County Well Ordinance, and the State Water Well Standards, and that the license listed above is considered current and active by the Contractors State License Board.

Driller's Signature: Date:
=======

CONSUL TANT COMPANY
Consultant Company: RMD Environmental Solutions, Inc. Project Manager: _K""ir..:;s..;_te:....n_..::...D_u_eyL..-______ ____ _ Address:1371 Oakland Boulevard, Suite 200 City, State, Zip:Walnut Creek, CA, 94596 Telephone: 925-683-8177 Email: [email protected]
Field Contact & Cell# (if known): Bianca Angulo (951-310-4726) I certify that this application is correct to the best of my knowledge and the well/boring will be constructed/destroyed in compliance with the conditions of this permit (see reverse), the San Mateo County Well Ordinance, and the State Water Well Standards. I understand that I am respcnsible for General Conditions E, F, K, and L of this permit and if I indicated the purpose of drilling is geotechnical, then no one will use the boring to collect any samples for environmental analyses. If there is a change in Responsible Professional. I will notify San Mateo County GPP staff.

Responsible Professional's Name (Please print legibly):.;..P.:..:a.:..:o.:..:la::...G..::...=o_m_e.:..:z_-B_i_re_n_b_a_u_m_______________ _ Responsible Professional's Signature: . .... · g::.~~":.C:i::~=':'" baum Date: 71612020 California Professional Geologist (PG) No. 9095 or Civil Engineer (PE) No. R ... 1/2/2020 ----------- DRAFT
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RM D j 415 & 445 SOUTH B STREET SAN MATEO, CALIFORNIA ENVIRONMENTAL SOLUTIONS "ru"rno. M" OR'" "'·" PROPOSAL 07/2020 OW
LEGEND
Proposed Grab Groundwater
Sample

PROPOSED SAMPLE LOCATIONS
•
FIGURE
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July 10, 2020
Karen Magallanes
City of San Mateo Public Works Engineering
330 W. 20th Avenue
San Mateo, California 94403
Subject: Letter of Intent for Encroachment Permit
415 and 445 South B Street
San Mateo, California
Ms. Magallanes:

RMD Environmental Solutions, Inc. (RMD) is conducting a due diligence investigation for the property located at 415 and 445 South B Street in San Mateo, California (Subject Property) to evaluate subsurface conditions which may trigger mitigation measures or possible environmental liability should our client purchase the property.

SCOPE OF WORK
RMD is planning to advance three soil borings in the City of San Mateo right-of-way for collection of grab groundwater samples as part of a due diligence investigation for our client. The three soil borings will be installed at the approximate locations shown on the attached figure. The borings will be advanced using a direct-push drill rig to the target depth of 30 feet below ground surface. A grab groundwater sample will be collected from each soil boring and the borings will be backfilled with neat cement grout and capped with concrete to match the surrounding grade. The drilling activities will be conducted by a California-licensed driller with the oversight of RMD.

KEY ASSUMPTIONS
Hot asphalt patching in the city right-of-way is not required for boring locations.

PROPOSED SCHEDULE
The proposed drilling is tentatively scheduled for July 27, 2020 pending approval of this encroachment permit application.

Sincerely,
RMD ENVIRONMENTAL SOLUTIONS, INC.

Doug Whichard
Project Scientist
1371 Oakland Boulevard , Suite 200, Walnut Creek, CA 94596 • www.rmdes.net DRAFT
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CITY OF SAN MATEO - DEPARTMENT OF PUBLIC WORKS

ENCROACHMENT PERMIT APPLICATION
Re uired for all activities in the ublic rieht-of-wa ROW or ublic casement .M.M.C. 17.08 COMPANY: RHb €AJV11?..oNMcNT1lL. £w.11 ~ 11'-l(.. . CONTRACTOR'S LICENSE NO:

ADDRESS: I SAN MA TEO BUSINESS LICENSE NO:

CITY: WAt...Nl.1--f Cf?t.'"f\t- ZIP: q'-151 TELEPHONE: 925"- I/We hereby apply f or an encroachment permit to perform the following work in accordance with the City of San Mateo Municipal Code Chapter 17.08: P~il-\llN cii t.ors rJ£rtfL I. Project Address: l-flS +~L\S S. l3 gr 2. Property Owner: C!TI Of «j&J M!lTEO

3. Describe work requested in the right-of-way: '----f1.r__.1 C..._A-=t.----=S"""o-'-1 L=-""'B""'o"'"2._1""-rJ-'6 _____ /L_""'Lq.t_--- "--"""----- Q f Se•t- + <'.J12DuNOl-v4-TEl2.. 5AMP~S

4. On site contact name and cell phone number: ou ~~tJrt tf4@~---- -'- '1 'lI ___ _ __ _ S. Proposed Start Date: :fUL.'{ 23, Zoz.o Estimated Completion Date: J!>t...lf 29. 2p2o

6. Project related to current building permit? No S Yes 0 lf yes, bui lding permit number: _____ _

7. Ll~anyoilierwork~si~ : -~~~--------------------------

8. Project related to dock installation?

9. Project related to planning application?

10. Drawing of proposed \l ork attached?
o 18 Yes D
No {)iJ Yes 0
No 0 Yes~
lfyes DOCK# :

If yes, PA#: ---------
*I/We agree to defend and indemnify the City, ils officers, employees, and agenls against, and will hold and save them and each of them harmless from any and all actions, claims, damages to persons or properties. penalties. oblig01ions. and liabilities that may be asserted by any person arising out of the negligent or intentionally tortious acts, negligent errors, or omissions of mine/ours, my/our officers, agents. employees, contracrors, s11bcontractors, or in11itees re/med to the work described in this 'E. lie l/We alfest that the above information is true to the best of my knowledge. o-::t zoz.o
Certificate oflnsurance on File? Yes 0 'o 0 Is Insurance Site or Project Specific? VesO o 0 Insurance Expiration Date: -------- Insurance reviewed by: ---------------- Pem1it Fee: $ ___________ _
(Anach fee calculation sheet, if_ applicable)
Permit Security Deposit: $ ____________ __ _
Check D
Cash D
Letter of Credit D Credit Card D
Performance Bond D C.D. D
Photocopy of payment/City receipt attached LO this form? Yes D No D Refund of security deposit will be mailed lo "Applicant" above, unless otherwise noted:---------------- Miscellaneous not es:-- -- ---------~------------------- Reviewed and approved by Public Works staff: Reviewed and approved by Building/Planning staff, if applicable:
ame: I Date: Name: I Date:
0 lpwP\YE, <M FOR SIE~CRHAPP DOC Rn 07ir1'1
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RM D j 415 & 445 SOUTH B STREET SAN MATEO, CALIFORNIA ENVIRONMENTAL SOLUTIONS "°'"' ' 0 · 0 'rr 0R"' "' " PROPOSAL 07/2020 OW
LEGEND
Proposed Grab Groundwater
.:I Sample

PROPOSED SAMPLE LOCATIONS
•
FIGURE
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California MUTCD 2014 Edition
(FHWA's MUTCD 2009 Edition, including Revisions I & 2, as amended for use in California) Figure 6H-3. Work on the Shoulders (TA-3)
G20-1
W21 -5
-t
Shoulder taper
(see Note 7)
G20-2
(optional)
Note: See Tables 6H-2 and 6H-3
for the meaning of the
symbols and/or letter
codes used in this figure.

Chapter 6H - Typical Applications
Part 6 - Temporary Traffic Control
Typical Application 3
(optional)
Shoulder taper
(see Note 7)
_l
1/3 L

November 7, 2014
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California MUTCD 2014 Edition
(FHWA's MUTCD 2009 Edition, including Revisions I & 2, as amended for use in California)

Figure 6H-6. Shoulder Work with Minor Encroachment (TA-6) G20-2
W20-1
G20-2
(optional)
Chapter 6H - Typical Applications
Part 6 - Temporary Traffic Control
A
Typical Application 6
(optional)
Note: See Tables 6H-2 and
6H-3 for the meaning
of the symbols and/or
letter codes used in
this figure.

Truck-mounted
attenuator
(optional)
l
Buffer space
(optional)
1/3 L
1 A
W20-1
November 7, 2014
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ATTACHMENT B
Boring Logs and Field Data Sheets
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ATTACHMENT C
Laboratory Analytical Reports
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ANALYTICAL REPORT
August 04, 2020
RMD Environmental - Walnut Creek, CA
Sample Delivery Group: L1244222
Samples Received: 07/28/2020
Project Number: 01-PRO-003
Description: TALBOTS
Report To: Doug Whichard
1371 Oakland Blvd.

Suite 200
Walnut Creek, CA 94596
Entire Report Reviewed By:

August 04, 2020
[Preliminary Report]
Jared Starkey
Project Manager
Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received.
12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com 1 Cp
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ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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Jared Starkey
Project Manager
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TABLE OF CONTENTS ONE LAB. NATIONWIDE.

Cp: Cover Page 1
Tc: Table of Contents 2
Ss: Sample Summary 3
Cn: Case Narrative 4
Ds: Detection Summary 5
Sr: Sample Results 7
SVP-01-COMP L1244222-01 7
SVP-03-COMP L1244222-02 10
SVP-02-COMP L1244222-03 13
Qc: Quality Control Summary 16
Total Solids by Method 2540 G-2011 16
Mercury by Method 7471A 17
Metals (ICP) by Method 6010B 18
Volatile Organic Compounds (GC) by Method 8015 20
Volatile Organic Compounds (GC/MS) by Method 8260B 21
Semi-Volatile Organic Compounds (GC) by Method 8015 31
Gl: Glossary of Terms 32
Al: Accreditations & Locations 33
Sc: Sample Chain of Custody 34
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SAMPLE SUMMARY ONE LAB. NATIONWIDE.

Collected by Collected date/time Received date/time
SVP-01-COMP L1244222-01 Solid B Angulo 07/27/20 00:00 07/28/20 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Total Solids by Method 2540 G-2011 WG1518732 1 08/01/20 22:52 08/01/20 23:07 KBC Mt. Juliet, TN Mercury by Method 7471A WG1516822 1 07/29/20 07:20 07/29/20 13:09 TCT Mt. Juliet, TN Metals (ICP) by Method 6010B WG1516857 1 07/29/20 09:19 07/30/20 06:31 TRB Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015 WG1518456 1 07/29/20 23:13 08/01/20 00:33 BMB Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1517839 1 07/29/20 23:13 07/30/20 20:44 ADM Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG1517142 1 07/29/20 16:37 07/31/20 18:24 JDG Mt. Juliet, TN Collected by Collected date/time Received date/time
SVP-03-COMP L1244222-02 Solid B Angulo 07/27/20 00:00 07/28/20 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Total Solids by Method 2540 G-2011 WG1518732 1 08/01/20 22:52 08/01/20 23:07 KBC Mt. Juliet, TN Mercury by Method 7471A WG1516822 1 07/29/20 07:20 07/29/20 12:36 TCT Mt. Juliet, TN Metals (ICP) by Method 6010B WG1516857 1 07/29/20 09:19 07/30/20 06:33 TRB Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015 WG1518456 1 07/29/20 23:13 08/01/20 00:54 BMB Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1517839 1 07/29/20 23:13 07/30/20 21:05 ADM Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG1517142 1 07/29/20 16:37 08/02/20 15:17 AEG Mt. Juliet, TN Collected by Collected date/time Received date/time
SVP-02-COMP L1244222-03 Solid B Angulo 07/27/20 00:00 07/28/20 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Total Solids by Method 2540 G-2011 WG1518732 1 08/01/20 22:52 08/01/20 23:07 KBC Mt. Juliet, TN Mercury by Method 7471A WG1516822 1 07/29/20 07:20 07/29/20 13:12 TCT Mt. Juliet, TN Metals (ICP) by Method 6010B WG1516857 1 07/29/20 09:19 07/30/20 06:36 TRB Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015 WG1518456 1 07/29/20 23:13 08/01/20 05:18 BMB Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1518028 1 07/29/20 23:13 07/31/20 05:26 ADM Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG1517142 1 07/29/20 16:37 07/31/20 18:39 JDG Mt. Juliet, TN 1 Cp
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CASE NARRATIVE ONE LAB. NATIONWIDE.

All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report]
Jared Starkey
Project Manager
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ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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Project Manager
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DETECTION SUMMARY ONE LAB. NATIONWIDE.

Mercury by Method 7471A
Result (dry) Qualifier MDL (dry) RDL (dry) Dilutio
n
Analysis Batch
Client ID Lab Sample ID Analyte mg/kg mg/kg mg/kg date / time SVP-01-COMP L1244222-01 Mercury 0.128 0.0225 0.0500 1 07/29/2020 13:09 WG1516822 SVP-03-COMP L1244222-02 Mercury 0.331 J6 0.0199 0.0442 1 07/29/2020 12:36 WG1516822 SVP-02-COMP L1244222-03 Mercury 0.0715 0.0217 0.0482 1 07/29/2020 13:12 WG1516822 Metals (ICP) by Method 6010B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilutio
n
Analysis Batch
Client ID Lab Sample ID Analyte mg/kg mg/kg mg/kg date / time SVP-01-COMP L1244222-01 Antimony 1.08 J 0.625 2.50 1 07/30/2020 06:31 WG1516857 SVP-01-COMP L1244222-01 Arsenic 2.31 J 0.575 2.50 1 07/30/2020 06:31 WG1516857 SVP-01-COMP L1244222-01 Barium 140 0.300 0.625 1 07/30/2020 06:31 WG1516857 SVP-01-COMP L1244222-01 Beryllium 0.420 0.100 0.250 1 07/30/2020 06:31 WG1516857 SVP-01-COMP L1244222-01 Cadmium 0.185 J 0.101 0.625 1 07/30/2020 06:31 WG1516857 SVP-01-COMP L1244222-01 Chromium 74.5 0.313 1.25 1 07/30/2020 06:31 WG1516857 SVP-01-COMP L1244222-01 Cobalt 16.8 0.288 1.25 1 07/30/2020 06:31 WG1516857 SVP-01-COMP L1244222-01 Copper 28.9 0.633 2.50 1 07/30/2020 06:31 WG1516857 SVP-01-COMP L1244222-01 Lead 37.5 0.260 0.625 1 07/30/2020 06:31 WG1516857 SVP-01-COMP L1244222-01 Nickel 72.0 0.613 2.50 1 07/30/2020 06:31 WG1516857 SVP-01-COMP L1244222-01 Vanadium 76.5 0.859 2.50 1 07/30/2020 06:31 WG1516857 SVP-01-COMP L1244222-01 Zinc 65.0 1.17 6.25 1 07/30/2020 06:31 WG1516857 SVP-03-COMP L1244222-02 Antimony 1.14 J 0.553 2.21 1 07/30/2020 06:33 WG1516857 SVP-03-COMP L1244222-02 Arsenic 2.12 J 0.509 2.21 1 07/30/2020 06:33 WG1516857 SVP-03-COMP L1244222-02 Barium 190 0.265 0.553 1 07/30/2020 06:33 WG1516857 SVP-03-COMP L1244222-02 Beryllium 0.554 0.0885 0.221 1 07/30/2020 06:33 WG1516857 SVP-03-COMP L1244222-02 Cadmium 0.346 J 0.0896 0.553 1 07/30/2020 06:33 WG1516857 SVP-03-COMP L1244222-02 Chromium 86.7 0.276 1.11 1 07/30/2020 06:33 WG1516857 SVP-03-COMP L1244222-02 Cobalt 20.8 0.254 1.11 1 07/30/2020 06:33 WG1516857 SVP-03-COMP L1244222-02 Copper 34.9 0.560 2.21 1 07/30/2020 06:33 WG1516857 SVP-03-COMP L1244222-02 Lead 100 0.230 0.553 1 07/30/2020 06:33 WG1516857 SVP-03-COMP L1244222-02 Nickel 85.6 0.542 2.21 1 07/30/2020 06:33 WG1516857 SVP-03-COMP L1244222-02 Vanadium 81.2 0.760 2.21 1 07/30/2020 06:33 WG1516857 SVP-03-COMP L1244222-02 Zinc 124 1.04 5.53 1 07/30/2020 06:33 WG1516857 SVP-02-COMP L1244222-03 Antimony 1.25 J 0.603 2.41 1 07/30/2020 06:36 WG1516857 SVP-02-COMP L1244222-03 Arsenic 2.94 0.554 2.41 1 07/30/2020 06:36 WG1516857 SVP-02-COMP L1244222-03 Barium 199 0.289 0.603 1 07/30/2020 06:36 WG1516857 SVP-02-COMP L1244222-03 Beryllium 0.545 0.0964 0.241 1 07/30/2020 06:36 WG1516857 SVP-02-COMP L1244222-03 Cadmium 0.377 J 0.0976 0.603 1 07/30/2020 06:36 WG1516857 SVP-02-COMP L1244222-03 Chromium 81.1 0.301 1.21 1 07/30/2020 06:36 WG1516857 SVP-02-COMP L1244222-03 Cobalt 21.9 0.277 1.21 1 07/30/2020 06:36 WG1516857 SVP-02-COMP L1244222-03 Copper 41.9 0.610 2.41 1 07/30/2020 06:36 WG1516857 SVP-02-COMP L1244222-03 Lead 162 0.251 0.603 1 07/30/2020 06:36 WG1516857 SVP-02-COMP L1244222-03 Nickel 77.7 0.590 2.41 1 07/30/2020 06:36 WG1516857 SVP-02-COMP L1244222-03 Vanadium 86.1 0.828 2.41 1 07/30/2020 06:36 WG1516857 SVP-02-COMP L1244222-03 Zinc 109 1.13 6.03 1 07/30/2020 06:36 WG1516857 Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilutio
n
Analysis Batch
Client ID Lab Sample ID Analyte mg/kg mg/kg mg/kg date / time SVP-01-COMP L1244222-01 2-Butanone (MEK) 0.258 B 0.0953 0.150 1 07/30/2020 20:44 WG1517839 SVP-01-COMP L1244222-01 Styrene 0.00297 J 0.000344 0.0188 1 07/30/2020 20:44 WG1517839 SVP-01-COMP L1244222-01 Toluene 0.00269 J 0.00195 0.00751 1 07/30/2020 20:44 WG1517839 SVP-01-COMP L1244222-01 Xylenes, Total 0.00315 J 0.00132 0.00976 1 07/30/2020 20:44 WG1517839 1 Cp
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DETECTION SUMMARY ONE LAB. NATIONWIDE.

Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilutio
n
Analysis Batch
Client ID Lab Sample ID Analyte mg/kg mg/kg mg/kg date / time SVP-03-COMP L1244222-02 2-Butanone (MEK) 0.180 B 0.0702 0.111 1 07/30/2020 21:05 WG1517839 SVP-03-COMP L1244222-02 Styrene 0.00138 J 0.000253 0.0138 1 07/30/2020 21:05 WG1517839 SVP-03-COMP L1244222-02 Toluene 0.00154 J 0.00144 0.00553 1 07/30/2020 21:05 WG1517839 SVP-03-COMP L1244222-02 Xylenes, Total 0.00310 J 0.000973 0.00719 1 07/30/2020 21:05 WG1517839 SVP-02-COMP L1244222-03 2-Butanone (MEK) 0.127 J 0.0895 0.141 1 07/31/2020 05:26 WG1518028 SVP-02-COMP L1244222-03 Styrene 0.00134 J 0.000323 0.0176 1 07/31/2020 05:26 WG1518028 SVP-02-COMP L1244222-03 Tetrachloroethene 0.00180 J 0.00126 0.00353 1 07/31/2020 05:26 WG1518028 SVP-02-COMP L1244222-03 Xylenes, Total 0.00151 J 0.00124 0.00917 1 07/31/2020 05:26 WG1518028 Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilutio
n
Analysis Batch
Client ID Lab Sample ID Analyte mg/kg mg/kg mg/kg date / time SVP-01-COMP L1244222-01 C12-C22 Hydrocarbons 2.49 J 0.917 5.00 1 07/31/2020 18:24 WG1517142 SVP-01-COMP L1244222-01 C22-C32 Hydrocarbons 9.61 1.66 5.00 1 07/31/2020 18:24 WG1517142 SVP-01-COMP L1244222-01 C32-C40 Hydrocarbons 6.45 1.66 5.00 1 07/31/2020 18:24 WG1517142 SVP-03-COMP L1244222-02 C12-C22 Hydrocarbons 5.29 0.811 4.42 1 08/02/2020 15:17 WG1517142 SVP-03-COMP L1244222-02 C22-C32 Hydrocarbons 54.1 1.47 4.42 1 08/02/2020 15:17 WG1517142 SVP-03-COMP L1244222-02 C32-C40 Hydrocarbons 27.4 1.47 4.42 1 08/02/2020 15:17 WG1517142 SVP-02-COMP L1244222-03 C12-C22 Hydrocarbons 3.62 J 0.883 4.82 1 07/31/2020 18:39 WG1517142 SVP-02-COMP L1244222-03 C22-C32 Hydrocarbons 36.0 1.60 4.82 1 07/31/2020 18:39 WG1517142 SVP-02-COMP L1244222-03 C32-C40 Hydrocarbons 19.9 1.60 4.82 1 07/31/2020 18:39 WG1517142 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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5434 of 11211
SAMPLE RESULTS - 01 ONE LAB. NATIONWIDE.

L1244222
SVP-01-COMP
Collected date/time: 07/27/20 00:00
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte % date / time
Total Solids 80.0 1 08/01/2020 23:07 WG1518732
Mercury by Method 7471A
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Mercury 0.128 0.0225 0.0500 1 07/29/2020 13:09 WG1516822 Metals (ICP) by Method 6010B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Antimony 1.08 J 0.625 2.50 1 07/30/2020 06:31 WG1516857 Arsenic 2.31 J 0.575 2.50 1 07/30/2020 06:31 WG1516857
Barium 140 0.300 0.625 1 07/30/2020 06:31 WG1516857
Beryllium 0.420 0.100 0.250 1 07/30/2020 06:31 WG1516857 Cadmium 0.185 J 0.101 0.625 1 07/30/2020 06:31 WG1516857 Chromium 74.5 0.313 1.25 1 07/30/2020 06:31 WG1516857
Cobalt 16.8 0.288 1.25 1 07/30/2020 06:31 WG1516857
Copper 28.9 0.633 2.50 1 07/30/2020 06:31 WG1516857
Lead 37.5 0.260 0.625 1 07/30/2020 06:31 WG1516857
Molybdenum U 0.250 0.625 1 07/30/2020 06:31 WG1516857
Nickel 72.0 0.613 2.50 1 07/30/2020 06:31 WG1516857
Selenium U 0.772 2.50 1 07/30/2020 06:31 WG1516857
Silver U 0.285 1.25 1 07/30/2020 06:31 WG1516857
Thallium U 0.443 2.50 1 07/30/2020 06:31 WG1516857
Vanadium 76.5 0.859 2.50 1 07/30/2020 06:31 WG1516857
Zinc 65.0 1.17 6.25 1 07/30/2020 06:31 WG1516857
Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
TPHG C5 - C12 U 0.0415 0.125 1 08/01/2020 00:33 WG1518456 (S) a,a,a-Trifluorotoluene(FID) 89.0 77.0-120 08/01/2020 00:33 WG1518456 Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Acetone U 0.0548 0.0751 1 07/30/2020 20:44 WG1517839
Acrylonitrile U 0.00542 0.0188 1 07/30/2020 20:44 WG1517839 Benzene U 0.000701 0.00150 1 07/30/2020 20:44 WG1517839 Bromobenzene U 0.00135 0.0188 1 07/30/2020 20:44 WG1517839 Bromodichloromethane U 0.00109 0.00375 1 07/30/2020 20:44 WG1517839 Bromoform U 0.00176 0.0375 1 07/30/2020 20:44 WG1517839 Bromomethane U 0.00296 0.0188 1 07/30/2020 20:44 WG1517839 n-Butylbenzene U 0.00788 0.0188 1 07/30/2020 20:44 WG1517839 sec-Butylbenzene U 0.00432 0.0188 1 07/30/2020 20:44 WG1517839 tert-Butylbenzene U 0.00293 0.00751 1 07/30/2020 20:44 WG1517839 Carbon tetrachloride U 0.00135 0.00751 1 07/30/2020 20:44 WG1517839 Chlorobenzene U 0.000315 0.00375 1 07/30/2020 20:44 WG1517839 Chlorodibromomethane U 0.000919 0.00375 1 07/30/2020 20:44 WG1517839 Chloroethane U 0.00255 0.00751 1 07/30/2020 20:44 WG1517839 Chloroform U 0.00155 0.00375 1 07/30/2020 20:44 WG1517839 Chloromethane U 0.00653 0.0188 1 07/30/2020 20:44 WG1517839 2-Chlorotoluene U 0.00130 0.00375 1 07/30/2020 20:44 WG1517839 4-Chlorotoluene U 0.000676 0.00751 1 07/30/2020 20:44 WG1517839 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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5435 of 11211
SAMPLE RESULTS - 01 ONE LAB. NATIONWIDE.

L1244222
SVP-01-COMP
Collected date/time: 07/27/20 00:00
Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
1,2-Dibromo-3-Chloropropane U 0.00586 0.0375 1 07/30/2020 20:44 WG1517839 1,2-Dibromoethane U 0.000973 0.00375 1 07/30/2020 20:44 WG1517839 Dibromomethane U 0.00113 0.00751 1 07/30/2020 20:44 WG1517839 1,2-Dichlorobenzene U 0.000638 0.00751 1 07/30/2020 20:44 WG1517839 1,3-Dichlorobenzene U 0.000901 0.00751 1 07/30/2020 20:44 WG1517839 1,4-Dichlorobenzene U 0.00105 0.00751 1 07/30/2020 20:44 WG1517839 Dichlorodifluoromethane U 0.00242 0.00375 1 07/30/2020 20:44 WG1517839 1,1-Dichloroethane U 0.000737 0.00375 1 07/30/2020 20:44 WG1517839 1,2-Dichloroethane U 0.000974 0.00375 1 07/30/2020 20:44 WG1517839 1,1-Dichloroethene U 0.000910 0.00375 1 07/30/2020 20:44 WG1517839 cis-1,2-Dichloroethene U 0.00110 0.00375 1 07/30/2020 20:44 WG1517839 trans-1,2-Dichloroethene U 0.00156 0.00751 1 07/30/2020 20:44 WG1517839 1,2-Dichloropropane U 0.00213 0.00751 1 07/30/2020 20:44 WG1517839 1,1-Dichloropropene U 0.00121 0.00375 1 07/30/2020 20:44 WG1517839 1,3-Dichloropropane U 0.000752 0.00751 1 07/30/2020 20:44 WG1517839 cis-1,3-Dichloropropene U 0.00114 0.00375 1 07/30/2020 20:44 WG1517839 trans-1,3-Dichloropropene U 0.00171 0.00751 1 07/30/2020 20:44 WG1517839 2,2-Dichloropropane U 0.00207 0.00375 1 07/30/2020 20:44 WG1517839 Di-isopropyl ether U 0.000616 0.00150 1 07/30/2020 20:44 WG1517839 Ethylbenzene U 0.00111 0.00375 1 07/30/2020 20:44 WG1517839 Hexachloro-1,3-butadiene U 0.00901 0.0375 1 07/30/2020 20:44 WG1517839 Isopropylbenzene U 0.000638 0.00375 1 07/30/2020 20:44 WG1517839 p-Isopropyltoluene U 0.00383 0.00751 1 07/30/2020 20:44 WG1517839 2-Butanone (MEK) 0.258 B 0.0953 0.150 1 07/30/2020 20:44 WG1517839 Methylene Chloride U 0.00997 0.0375 1 07/30/2020 20:44 WG1517839 4-Methyl-2-pentanone (MIBK) U 0.00342 0.0375 1 07/30/2020 20:44 WG1517839 Methyl tert-butyl ether U 0.000525 0.00150 1 07/30/2020 20:44 WG1517839 Naphthalene U 0.00733 0.0188 1 07/30/2020 20:44 WG1517839 n-Propylbenzene U 0.00143 0.00751 1 07/30/2020 20:44 WG1517839 Styrene 0.00297 J 0.000344 0.0188 1 07/30/2020 20:44 WG1517839 1,1,1,2-Tetrachloroethane U 0.00142 0.00375 1 07/30/2020 20:44 WG1517839 1,1,2,2-Tetrachloroethane U 0.00104 0.00375 1 07/30/2020 20:44 WG1517839 1,1,2-Trichlorotrifluoroethane U 0.00113 0.00375 1 07/30/2020 20:44 WG1517839 Tetrachloroethene U 0.00135 0.00375 1 07/30/2020 20:44 WG1517839 Toluene 0.00269 J 0.00195 0.00751 1 07/30/2020 20:44 WG1517839 1,2,3-Trichlorobenzene U 0.0110 0.0188 1 07/30/2020 20:44 WG1517839 1,2,4-Trichlorobenzene U 0.00661 0.0188 1 07/30/2020 20:44 WG1517839 1,1,1-Trichloroethane U 0.00139 0.00375 1 07/30/2020 20:44 WG1517839 1,1,2-Trichloroethane U 0.000896 0.00375 1 07/30/2020 20:44 WG1517839 Trichloroethene U 0.000877 0.00150 1 07/30/2020 20:44 WG1517839 Trichlorofluoromethane U 0.00124 0.00375 1 07/30/2020 20:44 WG1517839 1,2,3-Trichloropropane U 0.00243 0.0188 1 07/30/2020 20:44 WG1517839 1,2,4-Trimethylbenzene U 0.00237 0.00751 1 07/30/2020 20:44 WG1517839 1,2,3-Trimethylbenzene U 0.00237 0.00751 1 07/30/2020 20:44 WG1517839 1,3,5-Trimethylbenzene U 0.00300 0.00751 1 07/30/2020 20:44 WG1517839 Vinyl chloride U 0.00174 0.00375 1 07/30/2020 20:44 WG1517839 Xylenes, Total 0.00315 J 0.00132 0.00976 1 07/30/2020 20:44 WG1517839 (S) Toluene-d8 96.6 75.0-131 07/30/2020 20:44 WG1517839 (S) 4-Bromofluorobenzene 109 67.0-138 07/30/2020 20:44 WG1517839 (S) 1,2-Dichloroethane-d4 94.8 70.0-130 07/30/2020 20:44 WG1517839 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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5436 of 11211
SAMPLE RESULTS - 01 ONE LAB. NATIONWIDE.

L1244222
SVP-01-COMP
Collected date/time: 07/27/20 00:00
Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
C12-C22 Hydrocarbons 2.49 J 0.917 5.00 1 07/31/2020 18:24 WG1517142 C22-C32 Hydrocarbons 9.61 1.66 5.00 1 07/31/2020 18:24 WG1517142 C32-C40 Hydrocarbons 6.45 1.66 5.00 1 07/31/2020 18:24 WG1517142 (S) o-Terphenyl 93.4 18.0-148 07/31/2020 18:24 WG1517142 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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5437 of 11211
SAMPLE RESULTS - 02 ONE LAB. NATIONWIDE.

L1244222
SVP-03-COMP
Collected date/time: 07/27/20 00:00
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte % date / time
Total Solids 90.4 1 08/01/2020 23:07 WG1518732
Mercury by Method 7471A
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Mercury 0.331 J6 0.0199 0.0442 1 07/29/2020 12:36 WG1516822 Metals (ICP) by Method 6010B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Antimony 1.14 J 0.553 2.21 1 07/30/2020 06:33 WG1516857 Arsenic 2.12 J 0.509 2.21 1 07/30/2020 06:33 WG1516857
Barium 190 0.265 0.553 1 07/30/2020 06:33 WG1516857
Beryllium 0.554 0.0885 0.221 1 07/30/2020 06:33 WG1516857 Cadmium 0.346 J 0.0896 0.553 1 07/30/2020 06:33 WG1516857 Chromium 86.7 0.276 1.11 1 07/30/2020 06:33 WG1516857
Cobalt 20.8 0.254 1.11 1 07/30/2020 06:33 WG1516857
Copper 34.9 0.560 2.21 1 07/30/2020 06:33 WG1516857
Lead 100 0.230 0.553 1 07/30/2020 06:33 WG1516857
Molybdenum U 0.221 0.553 1 07/30/2020 06:33 WG1516857
Nickel 85.6 0.542 2.21 1 07/30/2020 06:33 WG1516857
Selenium U 0.682 2.21 1 07/30/2020 06:33 WG1516857
Silver U 0.252 1.11 1 07/30/2020 06:33 WG1516857
Thallium U 0.392 2.21 1 07/30/2020 06:33 WG1516857
Vanadium 81.2 0.760 2.21 1 07/30/2020 06:33 WG1516857
Zinc 124 1.04 5.53 1 07/30/2020 06:33 WG1516857
Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
TPHG C5 - C12 U 0.0367 0.111 1 08/01/2020 00:54 WG1518456 (S) a,a,a-Trifluorotoluene(FID) 89.2 77.0-120 08/01/2020 00:54 WG1518456 Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Acetone U 0.0404 0.0553 1 07/30/2020 21:05 WG1517839
Acrylonitrile U 0.00399 0.0138 1 07/30/2020 21:05 WG1517839 Benzene U 0.000516 0.00111 1 07/30/2020 21:05 WG1517839 Bromobenzene U 0.000995 0.0138 1 07/30/2020 21:05 WG1517839 Bromodichloromethane U 0.000802 0.00276 1 07/30/2020 21:05 WG1517839 Bromoform U 0.00129 0.0276 1 07/30/2020 21:05 WG1517839 Bromomethane U 0.00218 0.0138 1 07/30/2020 21:05 WG1517839 n-Butylbenzene U 0.00581 0.0138 1 07/30/2020 21:05 WG1517839 sec-Butylbenzene U 0.00319 0.0138 1 07/30/2020 21:05 WG1517839 tert-Butylbenzene U 0.00216 0.00553 1 07/30/2020 21:05 WG1517839 Carbon tetrachloride U 0.000993 0.00553 1 07/30/2020 21:05 WG1517839 Chlorobenzene U 0.000232 0.00276 1 07/30/2020 21:05 WG1517839 Chlorodibromomethane U 0.000677 0.00276 1 07/30/2020 21:05 WG1517839 Chloroethane U 0.00188 0.00553 1 07/30/2020 21:05 WG1517839 Chloroform U 0.00114 0.00276 1 07/30/2020 21:05 WG1517839 Chloromethane U 0.00481 0.0138 1 07/30/2020 21:05 WG1517839 2-Chlorotoluene U 0.000957 0.00276 1 07/30/2020 21:05 WG1517839 4-Chlorotoluene U 0.000498 0.00553 1 07/30/2020 21:05 WG1517839 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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5438 of 11211
SAMPLE RESULTS - 02 ONE LAB. NATIONWIDE.

L1244222
SVP-03-COMP
Collected date/time: 07/27/20 00:00
Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
1,2-Dibromo-3-Chloropropane U 0.00431 0.0276 1 07/30/2020 21:05 WG1517839 1,2-Dibromoethane U 0.000717 0.00276 1 07/30/2020 21:05 WG1517839 Dibromomethane U 0.000829 0.00553 1 07/30/2020 21:05 WG1517839 1,2-Dichlorobenzene U 0.000470 0.00553 1 07/30/2020 21:05 WG1517839 1,3-Dichlorobenzene U 0.000664 0.00553 1 07/30/2020 21:05 WG1517839 1,4-Dichlorobenzene U 0.000774 0.00553 1 07/30/2020 21:05 WG1517839 Dichlorodifluoromethane U 0.00178 0.00276 1 07/30/2020 21:05 WG1517839 1,1-Dichloroethane U 0.000543 0.00276 1 07/30/2020 21:05 WG1517839 1,2-Dichloroethane U 0.000718 0.00276 1 07/30/2020 21:05 WG1517839 1,1-Dichloroethene U 0.000670 0.00276 1 07/30/2020 21:05 WG1517839 cis-1,2-Dichloroethene U 0.000812 0.00276 1 07/30/2020 21:05 WG1517839 trans-1,2-Dichloroethene U 0.00115 0.00553 1 07/30/2020 21:05 WG1517839 1,2-Dichloropropane U 0.00157 0.00553 1 07/30/2020 21:05 WG1517839 1,1-Dichloropropene U 0.000895 0.00276 1 07/30/2020 21:05 WG1517839 1,3-Dichloropropane U 0.000554 0.00553 1 07/30/2020 21:05 WG1517839 cis-1,3-Dichloropropene U 0.000837 0.00276 1 07/30/2020 21:05 WG1517839 trans-1,3-Dichloropropene U 0.00126 0.00553 1 07/30/2020 21:05 WG1517839 2,2-Dichloropropane U 0.00153 0.00276 1 07/30/2020 21:05 WG1517839 Di-isopropyl ether U 0.000453 0.00111 1 07/30/2020 21:05 WG1517839 Ethylbenzene U 0.000815 0.00276 1 07/30/2020 21:05 WG1517839 Hexachloro-1,3-butadiene U 0.00664 0.0276 1 07/30/2020 21:05 WG1517839 Isopropylbenzene U 0.000470 0.00276 1 07/30/2020 21:05 WG1517839 p-Isopropyltoluene U 0.00282 0.00553 1 07/30/2020 21:05 WG1517839 2-Butanone (MEK) 0.180 B 0.0702 0.111 1 07/30/2020 21:05 WG1517839 Methylene Chloride U 0.00734 0.0276 1 07/30/2020 21:05 WG1517839 4-Methyl-2-pentanone (MIBK) U 0.00252 0.0276 1 07/30/2020 21:05 WG1517839 Methyl tert-butyl ether U 0.000387 0.00111 1 07/30/2020 21:05 WG1517839 Naphthalene U 0.00540 0.0138 1 07/30/2020 21:05 WG1517839 n-Propylbenzene U 0.00105 0.00553 1 07/30/2020 21:05 WG1517839 Styrene 0.00138 J 0.000253 0.0138 1 07/30/2020 21:05 WG1517839 1,1,1,2-Tetrachloroethane U 0.00105 0.00276 1 07/30/2020 21:05 WG1517839 1,1,2,2-Tetrachloroethane U 0.000769 0.00276 1 07/30/2020 21:05 WG1517839 1,1,2-Trichlorotrifluoroethane U 0.000834 0.00276 1 07/30/2020 21:05 WG1517839 Tetrachloroethene U 0.000991 0.00276 1 07/30/2020 21:05 WG1517839 Toluene 0.00154 J 0.00144 0.00553 1 07/30/2020 21:05 WG1517839 1,2,3-Trichlorobenzene U 0.00811 0.0138 1 07/30/2020 21:05 WG1517839 1,2,4-Trichlorobenzene U 0.00487 0.0138 1 07/30/2020 21:05 WG1517839 1,1,1-Trichloroethane U 0.00102 0.00276 1 07/30/2020 21:05 WG1517839 1,1,2-Trichloroethane U 0.000660 0.00276 1 07/30/2020 21:05 WG1517839 Trichloroethene U 0.000646 0.00111 1 07/30/2020 21:05 WG1517839 Trichlorofluoromethane U 0.000915 0.00276 1 07/30/2020 21:05 WG1517839 1,2,3-Trichloropropane U 0.00179 0.0138 1 07/30/2020 21:05 WG1517839 1,2,4-Trimethylbenzene U 0.00175 0.00553 1 07/30/2020 21:05 WG1517839 1,2,3-Trimethylbenzene U 0.00175 0.00553 1 07/30/2020 21:05 WG1517839 1,3,5-Trimethylbenzene U 0.00221 0.00553 1 07/30/2020 21:05 WG1517839 Vinyl chloride U 0.00128 0.00276 1 07/30/2020 21:05 WG1517839 Xylenes, Total 0.00310 J 0.000973 0.00719 1 07/30/2020 21:05 WG1517839 (S) Toluene-d8 87.8 75.0-131 07/30/2020 21:05 WG1517839 (S) 4-Bromofluorobenzene 101 67.0-138 07/30/2020 21:05 WG1517839 (S) 1,2-Dichloroethane-d4 95.0 70.0-130 07/30/2020 21:05 WG1517839 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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5439 of 11211
SAMPLE RESULTS - 02 ONE LAB. NATIONWIDE.

L1244222
SVP-03-COMP
Collected date/time: 07/27/20 00:00
Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
C12-C22 Hydrocarbons 5.29 0.811 4.42 1 08/02/2020 15:17 WG1517142 C22-C32 Hydrocarbons 54.1 1.47 4.42 1 08/02/2020 15:17 WG1517142 C32-C40 Hydrocarbons 27.4 1.47 4.42 1 08/02/2020 15:17 WG1517142 (S) o-Terphenyl 93.7 18.0-148 08/02/2020 15:17 WG1517142 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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5440 of 11211
SAMPLE RESULTS - 03 ONE LAB. NATIONWIDE.

L1244222
SVP-02-COMP
Collected date/time: 07/27/20 00:00
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte % date / time
Total Solids 83.0 1 08/01/2020 23:07 WG1518732
Mercury by Method 7471A
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Mercury 0.0715 0.0217 0.0482 1 07/29/2020 13:12 WG1516822 Metals (ICP) by Method 6010B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Antimony 1.25 J 0.603 2.41 1 07/30/2020 06:36 WG1516857 Arsenic 2.94 0.554 2.41 1 07/30/2020 06:36 WG1516857
Barium 199 0.289 0.603 1 07/30/2020 06:36 WG1516857
Beryllium 0.545 0.0964 0.241 1 07/30/2020 06:36 WG1516857 Cadmium 0.377 J 0.0976 0.603 1 07/30/2020 06:36 WG1516857 Chromium 81.1 0.301 1.21 1 07/30/2020 06:36 WG1516857
Cobalt 21.9 0.277 1.21 1 07/30/2020 06:36 WG1516857
Copper 41.9 0.610 2.41 1 07/30/2020 06:36 WG1516857
Lead 162 0.251 0.603 1 07/30/2020 06:36 WG1516857
Molybdenum U 0.241 0.603 1 07/30/2020 06:36 WG1516857
Nickel 77.7 0.590 2.41 1 07/30/2020 06:36 WG1516857
Selenium U 0.744 2.41 1 07/30/2020 06:36 WG1516857
Silver U 0.275 1.21 1 07/30/2020 06:36 WG1516857
Thallium U 0.427 2.41 1 07/30/2020 06:36 WG1516857
Vanadium 86.1 0.828 2.41 1 07/30/2020 06:36 WG1516857
Zinc 109 1.13 6.03 1 07/30/2020 06:36 WG1516857
Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
TPHG C5 - C12 U 0.0400 0.121 1 08/01/2020 05:18 WG1518456 (S) a,a,a-Trifluorotoluene(FID) 89.3 77.0-120 08/01/2020 05:18 WG1518456 Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Acetone U 0.0515 0.0705 1 07/31/2020 05:26 WG1518028
Acrylonitrile U 0.00509 0.0176 1 07/31/2020 05:26 WG1518028 Benzene U 0.000659 0.00141 1 07/31/2020 05:26 WG1518028 Bromobenzene U 0.00127 0.0176 1 07/31/2020 05:26 WG1518028 Bromodichloromethane U 0.00102 0.00353 1 07/31/2020 05:26 WG1518028 Bromoform U 0.00165 0.0353 1 07/31/2020 05:26 WG1518028 Bromomethane U 0.00278 0.0176 1 07/31/2020 05:26 WG1518028 n-Butylbenzene U 0.00740 0.0176 1 07/31/2020 05:26 WG1518028 sec-Butylbenzene U 0.00406 0.0176 1 07/31/2020 05:26 WG1518028 tert-Butylbenzene U 0.00275 0.00705 1 07/31/2020 05:26 WG1518028 Carbon tetrachloride U 0.00127 0.00705 1 07/31/2020 05:26 WG1518028 Chlorobenzene U 0.000296 0.00353 1 07/31/2020 05:26 WG1518028 Chlorodibromomethane U 0.000863 0.00353 1 07/31/2020 05:26 WG1518028 Chloroethane U 0.00240 0.00705 1 07/31/2020 05:26 WG1518028 Chloroform U 0.00145 0.00353 1 07/31/2020 05:26 WG1518028 Chloromethane U 0.00613 0.0176 1 07/31/2020 05:26 WG1518028 2-Chlorotoluene U 0.00122 0.00353 1 07/31/2020 05:26 WG1518028 4-Chlorotoluene U 0.000635 0.00705 1 07/31/2020 05:26 WG1518028 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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L1244222
SVP-02-COMP
Collected date/time: 07/27/20 00:00
Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
1,2-Dibromo-3-Chloropropane U 0.00550 0.0353 1 07/31/2020 05:26 WG1518028 1,2-Dibromoethane U 0.000914 0.00353 1 07/31/2020 05:26 WG1518028 Dibromomethane U 0.00106 0.00705 1 07/31/2020 05:26 WG1518028 1,2-Dichlorobenzene U J4 0.000599 0.00705 1 07/31/2020 05:26 WG1518028 1,3-Dichlorobenzene U 0.000846 0.00705 1 07/31/2020 05:26 WG1518028 1,4-Dichlorobenzene U J4 0.000987 0.00705 1 07/31/2020 05:26 WG1518028 Dichlorodifluoromethane U 0.00227 0.00353 1 07/31/2020 05:26 WG1518028 1,1-Dichloroethane U 0.000692 0.00353 1 07/31/2020 05:26 WG1518028 1,2-Dichloroethane U 0.000915 0.00353 1 07/31/2020 05:26 WG1518028 1,1-Dichloroethene U 0.000855 0.00353 1 07/31/2020 05:26 WG1518028 cis-1,2-Dichloroethene U 0.00104 0.00353 1 07/31/2020 05:26 WG1518028 trans-1,2-Dichloroethene U 0.00147 0.00705 1 07/31/2020 05:26 WG1518028 1,2-Dichloropropane U 0.00200 0.00705 1 07/31/2020 05:26 WG1518028 1,1-Dichloropropene U 0.00114 0.00353 1 07/31/2020 05:26 WG1518028 1,3-Dichloropropane U 0.000706 0.00705 1 07/31/2020 05:26 WG1518028 cis-1,3-Dichloropropene U 0.00107 0.00353 1 07/31/2020 05:26 WG1518028 trans-1,3-Dichloropropene U 0.00161 0.00705 1 07/31/2020 05:26 WG1518028 2,2-Dichloropropane U 0.00195 0.00353 1 07/31/2020 05:26 WG1518028 Di-isopropyl ether U 0.000578 0.00141 1 07/31/2020 05:26 WG1518028 Ethylbenzene U 0.00104 0.00353 1 07/31/2020 05:26 WG1518028 Hexachloro-1,3-butadiene U 0.00846 0.0353 1 07/31/2020 05:26 WG1518028 Isopropylbenzene U 0.000599 0.00353 1 07/31/2020 05:26 WG1518028 p-Isopropyltoluene U 0.00360 0.00705 1 07/31/2020 05:26 WG1518028 2-Butanone (MEK) 0.127 J 0.0895 0.141 1 07/31/2020 05:26 WG1518028 Methylene Chloride U 0.00936 0.0353 1 07/31/2020 05:26 WG1518028 4-Methyl-2-pentanone (MIBK) U 0.00322 0.0353 1 07/31/2020 05:26 WG1518028 Methyl tert-butyl ether U 0.000494 0.00141 1 07/31/2020 05:26 WG1518028 Naphthalene U 0.00688 0.0176 1 07/31/2020 05:26 WG1518028 n-Propylbenzene U J4 0.00134 0.00705 1 07/31/2020 05:26 WG1518028 Styrene 0.00134 J 0.000323 0.0176 1 07/31/2020 05:26 WG1518028 1,1,1,2-Tetrachloroethane U 0.00134 0.00353 1 07/31/2020 05:26 WG1518028 1,1,2,2-Tetrachloroethane U 0.000980 0.00353 1 07/31/2020 05:26 WG1518028 1,1,2-Trichlorotrifluoroethane U 0.00106 0.00353 1 07/31/2020 05:26 WG1518028 Tetrachloroethene 0.00180 J 0.00126 0.00353 1 07/31/2020 05:26 WG1518028 Toluene U 0.00183 0.00705 1 07/31/2020 05:26 WG1518028
1,2,3-Trichlorobenzene U 0.0103 0.0176 1 07/31/2020 05:26 WG1518028 1,2,4-Trichlorobenzene U 0.00620 0.0176 1 07/31/2020 05:26 WG1518028 1,1,1-Trichloroethane U 0.00130 0.00353 1 07/31/2020 05:26 WG1518028 1,1,2-Trichloroethane U 0.000842 0.00353 1 07/31/2020 05:26 WG1518028 Trichloroethene U 0.000823 0.00141 1 07/31/2020 05:26 WG1518028 Trichlorofluoromethane U 0.00117 0.00353 1 07/31/2020 05:26 WG1518028 1,2,3-Trichloropropane U 0.00228 0.0176 1 07/31/2020 05:26 WG1518028 1,2,4-Trimethylbenzene U J4 0.00223 0.00705 1 07/31/2020 05:26 WG1518028 1,2,3-Trimethylbenzene U 0.00223 0.00705 1 07/31/2020 05:26 WG1518028 1,3,5-Trimethylbenzene U 0.00282 0.00705 1 07/31/2020 05:26 WG1518028 Vinyl chloride U 0.00164 0.00353 1 07/31/2020 05:26 WG1518028 Xylenes, Total 0.00151 J 0.00124 0.00917 1 07/31/2020 05:26 WG1518028 (S) Toluene-d8 105 75.0-131 07/31/2020 05:26 WG1518028
(S) 4-Bromofluorobenzene 99.2 67.0-138 07/31/2020 05:26 WG1518028 (S) 1,2-Dichloroethane-d4 83.1 70.0-130 07/31/2020 05:26 WG1518028 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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L1244222
SVP-02-COMP
Collected date/time: 07/27/20 00:00
Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
C12-C22 Hydrocarbons 3.62 J 0.883 4.82 1 07/31/2020 18:39 WG1517142 C22-C32 Hydrocarbons 36.0 1.60 4.82 1 07/31/2020 18:39 WG1517142 C32-C40 Hydrocarbons 19.9 1.60 4.82 1 07/31/2020 18:39 WG1517142 (S) o-Terphenyl 78.8 18.0-148 07/31/2020 18:39 WG1517142 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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WG1518732 QUALITY CONTROL SUMMARY ONE LAB. NATIONWIDE.

Total Solids by Method 2540 G-2011 L1244222-01,02,03
Method Blank (MB)
(MB) R3556011-1 08/01/20 23:07
MB Result MB Qualifier MB MDL MB RDL
Analyte % % %
Total Solids 0.00200
Laboratory Control Sample (LCS)
(LCS) R3556011-2 08/01/20 23:07
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte % % % %
Total Solids 50.0 50.0 100 85.0-115
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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WG1516822 QUALITY CONTROL SUMMARY ONE LAB. NATIONWIDE.

Mercury by Method 7471A L1244222-01,02,03
Method Blank (MB)
(MB) R3554463-1 07/29/20 12:26
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
Mercury U 0.0180 0.0400
Laboratory Control Sample (LCS)
(LCS) R3554463-2 07/29/20 12:33
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
Mercury 0.500 0.474 94.8 80.0-120
L1244222-02 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1244222-02 07/29/20 12:36 • (MS) R3554463-3 07/29/20 12:39 • (MSD) R3554463-4 07/29/20 12:41 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
Mercury 0.553 0.331 0.686 0.702 64.2 67.1 1 75.0-125 J6 J6 2.33 20 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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WG1516857 QUALITY CONTROL SUMMARY ONE LAB. NATIONWIDE.

Metals (ICP) by Method 6010B L1244222-01,02,03
Method Blank (MB)
(MB) R3554769-1 07/30/20 05:51
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
Antimony U 0.500 2.00
Arsenic U 0.460 2.00
Barium U 0.240 0.500
Beryllium U 0.0800 0.200
Cadmium U 0.0810 0.500
Chromium U 0.250 1.00
Cobalt U 0.230 1.00
Copper U 0.506 2.00
Lead U 0.208 0.500
Molybdenum U 0.200 0.500
Nickel U 0.490 2.00
Selenium 0.623 J 0.617 2.00
Silver U 0.228 1.00
Thallium U 0.354 2.00
Vanadium U 0.687 2.00
Zinc U 0.939 5.00
Laboratory Control Sample (LCS)
(LCS) R3554769-2 07/30/20 05:54
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
Antimony 100 104 104 80.0-120
Arsenic 100 100 100 80.0-120
Barium 100 106 106 80.0-120
Beryllium 100 104 104 80.0-120
Cadmium 100 102 102 80.0-120
Chromium 100 106 106 80.0-120
Cobalt 100 105 105 80.0-120
Copper 100 103 103 80.0-120
Lead 100 104 104 80.0-120
Molybdenum 100 107 107 80.0-120
Nickel 100 104 104 80.0-120
Selenium 100 102 102 80.0-120
Silver 20.0 19.8 98.8 80.0-120
Thallium 100 100 100 80.0-120
Vanadium 100 101 101 80.0-120
Zinc 100 103 103 80.0-120
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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WG1516857 QUALITY CONTROL SUMMARY ONE LAB. NATIONWIDE.

Metals (ICP) by Method 6010B L1244222-01,02,03
L1244186-04 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1244186-04 07/30/20 05:57 • (MS) R3554769-5 07/30/20 06:04 • (MSD) R3554769-6 07/30/20 06:07 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
Antimony 109 1.14 61.3 59.2 55.3 53.4 1 75.0-125 J6 J6 3.46 20 Arsenic 109 7.67 112 114 95.7 98.0 1 75.0-125 2.21 20
Barium 109 158 262 282 96.0 114 1 75.0-125 7.19 20
Beryllium 109 0.358 113 115 104 105 1 75.0-125 1.11 20
Cadmium 109 0.198 113 114 103 105 1 75.0-125 1.24 20
Chromium 109 35.0 147 144 103 101 1 75.0-125 1.98 20
Cobalt 109 12.7 136 137 113 115 1 75.0-125 1.39 20
Copper 109 721 461 461 0.000 0.000 1 75.0-125 V V 0.0615 20 Lead 109 18.9 135 134 107 106 1 75.0-125 0.707 20
Molybdenum 109 18.4 117 118 90.4 91.5 1 75.0-125 0.972 20 Nickel 109 35.1 159 157 114 112 1 75.0-125 1.55 20
Selenium 109 U 109 110 100 102 1 75.0-125 1.45 20
Silver 21.7 U 21.6 21.8 99.5 100 1 75.0-125 0.595 20
Thallium 109 U 112 111 103 102 1 75.0-125 0.839 20
Vanadium 109 58.8 168 164 100 97.0 1 75.0-125 2.13 20
Zinc 109 65.4 169 170 95.5 96.7 1 75.0-125 0.751 20
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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WG1518456 QUALITY CONTROL SUMMARY ONE LAB. NATIONWIDE.

Volatile Organic Compounds (GC) by Method 8015 L1244222-01,02,03 Method Blank (MB)
(MB) R3555457-2 07/31/20 21:36
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
TPHG C5 - C12 U 0.0332 0.100
(S)
a,a,a-Trifluorotoluene(FID) 93.5 77.0-120
Laboratory Control Sample (LCS)
(LCS) R3555457-1 07/31/20 20:55
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
TPHG C5 - C12 5.50 5.45 99.1 72.0-125
(S)
a,a,a-Trifluorotoluene(FID) 108 77.0-120
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Volatile Organic Compounds (GC/MS) by Method 8260B L1244222-01,02 Method Blank (MB)
(MB) R3555022-2 07/30/20 15:20
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
Acetone U 0.0365 0.0500
Acrylonitrile U 0.00361 0.0125
Benzene U 0.000467 0.00100
Bromobenzene U 0.000900 0.0125
Bromodichloromethane U 0.000725 0.00250
Bromoform U 0.00117 0.0250
Bromomethane U 0.00197 0.0125
n-Butylbenzene U 0.00525 0.0125
sec-Butylbenzene U 0.00288 0.0125
tert-Butylbenzene U 0.00195 0.00500
Carbon tetrachloride U 0.000898 0.00500
Chlorobenzene U 0.000210 0.00250
Chlorodibromomethane U 0.000612 0.00250
Chloroethane U 0.00170 0.00500
Chloroform U 0.00103 0.00250
Chloromethane U 0.00435 0.0125
2-Chlorotoluene U 0.000865 0.00250
4-Chlorotoluene U 0.000450 0.00500
1,2-Dibromo-3-Chloropropane U 0.00390 0.0250
1,2-Dibromoethane U 0.000648 0.00250
Dibromomethane U 0.000750 0.00500
1,2-Dichlorobenzene U 0.000425 0.00500
1,3-Dichlorobenzene U 0.000600 0.00500
1,4-Dichlorobenzene U 0.000700 0.00500
Dichlorodifluoromethane U 0.00161 0.00250
1,1-Dichloroethane U 0.000491 0.00250
1,2-Dichloroethane U 0.000649 0.00250
1,1-Dichloroethene U 0.000606 0.00250
cis-1,2-Dichloroethene U 0.000734 0.00250
trans-1,2-Dichloroethene U 0.00104 0.00500
1,2-Dichloropropane U 0.00142 0.00500
1,1-Dichloropropene U 0.000809 0.00250
1,3-Dichloropropane U 0.000501 0.00500
cis-1,3-Dichloropropene U 0.000757 0.00250
trans-1,3-Dichloropropene U 0.00114 0.00500
2,2-Dichloropropane U 0.00138 0.00250
Di-isopropyl ether U 0.000410 0.00100
Ethylbenzene U 0.000737 0.00250
Hexachloro-1,3-butadiene U 0.00600 0.0250
Isopropylbenzene U 0.000425 0.00250
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Volatile Organic Compounds (GC/MS) by Method 8260B L1244222-01,02 Method Blank (MB)
(MB) R3555022-2 07/30/20 15:20
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
p-Isopropyltoluene U 0.00255 0.00500
2-Butanone (MEK) 0.110 0.0635 0.100
Methylene Chloride U 0.00664 0.0250
4-Methyl-2-pentanone (MIBK) U 0.00228 0.0250
Methyl tert-butyl ether U 0.000350 0.00100
Naphthalene U 0.00488 0.0125
n-Propylbenzene U 0.000950 0.00500
Styrene U 0.000229 0.0125
1,1,1,2-Tetrachloroethane U 0.000948 0.00250
1,1,2,2-Tetrachloroethane U 0.000695 0.00250
Tetrachloroethene U 0.000896 0.00250
Toluene U 0.00130 0.00500
1,1,2-Trichlorotrifluoroethane U 0.000754 0.00250
1,2,3-Trichlorobenzene U 0.00733 0.0125
1,2,4-Trichlorobenzene U 0.00440 0.0125
1,1,1-Trichloroethane U 0.000923 0.00250
1,1,2-Trichloroethane U 0.000597 0.00250
Trichloroethene U 0.000584 0.00100
Trichlorofluoromethane U 0.000827 0.00250
1,2,3-Trichloropropane U 0.00162 0.0125
1,2,3-Trimethylbenzene U 0.00158 0.00500
1,2,4-Trimethylbenzene 0.00215 J 0.00158 0.00500
1,3,5-Trimethylbenzene U 0.00200 0.00500
Vinyl chloride U 0.00116 0.00250
Xylenes, Total U 0.000880 0.00650
(S) Toluene-d8 99.8 75.0-131
(S) 4-Bromofluorobenzene 105 67.0-138
(S) 1,2-Dichloroethane-d4 102 70.0-130
Laboratory Control Sample (LCS)
(LCS) R3555022-1 07/30/20 14:18
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
Acetone 0.625 0.936 150 10.0-160
Acrylonitrile 0.625 0.660 106 45.0-153
Benzene 0.125 0.117 93.6 70.0-123
Bromobenzene 0.125 0.122 97.6 73.0-121
Bromodichloromethane 0.125 0.123 98.4 73.0-121
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Volatile Organic Compounds (GC/MS) by Method 8260B L1244222-01,02 Laboratory Control Sample (LCS)
(LCS) R3555022-1 07/30/20 14:18
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
Bromoform 0.125 0.118 94.4 64.0-132
Bromomethane 0.125 0.0982 78.6 56.0-147
n-Butylbenzene 0.125 0.110 88.0 68.0-135
sec-Butylbenzene 0.125 0.106 84.8 74.0-130
tert-Butylbenzene 0.125 0.102 81.6 75.0-127
Carbon tetrachloride 0.125 0.114 91.2 66.0-128
Chlorobenzene 0.125 0.116 92.8 76.0-128
Chlorodibromomethane 0.125 0.122 97.6 74.0-127
Chloroethane 0.125 0.104 83.2 61.0-134
Chloroform 0.125 0.108 86.4 72.0-123
Chloromethane 0.125 0.0977 78.2 51.0-138
2-Chlorotoluene 0.125 0.117 93.6 75.0-124
4-Chlorotoluene 0.125 0.120 96.0 75.0-124
1,2-Dibromo-3-Chloropropane 0.125 0.127 102 59.0-130
1,2-Dibromoethane 0.125 0.114 91.2 74.0-128
Dibromomethane 0.125 0.124 99.2 75.0-122
1,2-Dichlorobenzene 0.125 0.127 102 76.0-124
1,3-Dichlorobenzene 0.125 0.109 87.2 76.0-125
1,4-Dichlorobenzene 0.125 0.107 85.6 77.0-121
Dichlorodifluoromethane 0.125 0.117 93.6 43.0-156
1,1-Dichloroethane 0.125 0.115 92.0 70.0-127
1,2-Dichloroethane 0.125 0.130 104 65.0-131
1,1-Dichloroethene 0.125 0.0852 68.2 65.0-131
cis-1,2-Dichloroethene 0.125 0.119 95.2 73.0-125
trans-1,2-Dichloroethene 0.125 0.0995 79.6 71.0-125
1,2-Dichloropropane 0.125 0.130 104 74.0-125
1,1-Dichloropropene 0.125 0.120 96.0 73.0-125
1,3-Dichloropropane 0.125 0.123 98.4 80.0-125
cis-1,3-Dichloropropene 0.125 0.127 102 76.0-127
trans-1,3-Dichloropropene 0.125 0.115 92.0 73.0-127
2,2-Dichloropropane 0.125 0.124 99.2 59.0-135
Di-isopropyl ether 0.125 0.115 92.0 60.0-136
Ethylbenzene 0.125 0.111 88.8 74.0-126
Hexachloro-1,3-butadiene 0.125 0.133 106 57.0-150
Isopropylbenzene 0.125 0.113 90.4 72.0-127
p-Isopropyltoluene 0.125 0.116 92.8 72.0-133
2-Butanone (MEK) 0.625 0.763 122 30.0-160
Methylene Chloride 0.125 0.107 85.6 68.0-123
4-Methyl-2-pentanone (MIBK) 0.625 0.617 98.7 56.0-143
Methyl tert-butyl ether 0.125 0.112 89.6 66.0-132
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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WG1517839 QUALITY CONTROL SUMMARY ONE LAB. NATIONWIDE.

Volatile Organic Compounds (GC/MS) by Method 8260B L1244222-01,02 Laboratory Control Sample (LCS)
(LCS) R3555022-1 07/30/20 14:18
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
Naphthalene 0.125 0.128 102 59.0-130
n-Propylbenzene 0.125 0.120 96.0 74.0-126
Styrene 0.125 0.116 92.8 72.0-127
1,1,1,2-Tetrachloroethane 0.125 0.110 88.0 74.0-129
1,1,2,2-Tetrachloroethane 0.125 0.127 102 68.0-128
Tetrachloroethene 0.125 0.112 89.6 70.0-136
Toluene 0.125 0.0981 78.5 75.0-121
1,1,2-Trichlorotrifluoroethane 0.125 0.0946 75.7 61.0-139 1,2,3-Trichlorobenzene 0.125 0.142 114 59.0-139
1,2,4-Trichlorobenzene 0.125 0.136 109 62.0-137
1,1,1-Trichloroethane 0.125 0.118 94.4 69.0-126
1,1,2-Trichloroethane 0.125 0.120 96.0 78.0-123
Trichloroethene 0.125 0.118 94.4 76.0-126
Trichlorofluoromethane 0.125 0.0968 77.4 61.0-142
1,2,3-Trichloropropane 0.125 0.121 96.8 67.0-129
1,2,3-Trimethylbenzene 0.125 0.113 90.4 74.0-124
1,2,4-Trimethylbenzene 0.125 0.107 85.6 70.0-126
1,3,5-Trimethylbenzene 0.125 0.119 95.2 73.0-127
Vinyl chloride 0.125 0.0958 76.6 63.0-134
Xylenes, Total 0.375 0.332 88.5 72.0-127
(S) Toluene-d8 87.9 75.0-131
(S) 4-Bromofluorobenzene 107 67.0-138
(S) 1,2-Dichloroethane-d4 107 70.0-130
L1244186-02 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1244186-02 07/30/20 21:25 • (MS) R3555022-3 07/30/20 22:46 • (MSD) R3555022-4 07/30/20 23:06 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
Acetone 5.41 0.395 10.6 9.15 188 162 8 10.0-160 J5 J5 14.5 40 Acrylonitrile 5.41 U 9.10 5.91 168 109 8 10.0-160 J5 J3 42.5 40 Benzene 1.08 U 1.31 1.29 121 119 8 10.0-149 1.67 37
Bromobenzene 1.08 U 1.08 1.42 100 131 8 10.0-156 26.8 38 Bromodichloromethane 1.08 U 1.61 1.30 149 120 8 10.0-143 J5 21.6 37 Bromoform 1.08 U 1.27 1.22 117 113 8 10.0-146 3.48 36
Bromomethane 1.08 U 1.27 0.980 117 90.5 8 10.0-149 25.5 38 n-Butylbenzene 1.08 0.963 3.40 3.29 225 215 8 10.0-160 J5 J5 3.24 40 sec-Butylbenzene 1.08 0.491 2.23 2.64 161 199 8 10.0-159 J5 J5 16.9 39 tert-Butylbenzene 1.08 U 1.31 1.53 121 141 8 10.0-156 15.3 39 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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WG1517839 QUALITY CONTROL SUMMARY ONE LAB. NATIONWIDE.

Volatile Organic Compounds (GC/MS) by Method 8260B L1244222-01,02 L1244186-02 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1244186-02 07/30/20 21:25 • (MS) R3555022-3 07/30/20 22:46 • (MSD) R3555022-4 07/30/20 23:06 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
Carbon tetrachloride 1.08 U 1.34 1.14 124 105 8 10.0-145 16.6 37 Chlorobenzene 1.08 U 1.23 1.23 114 114 8 10.0-152 0.000 39 Chlorodibromomethane 1.08 U 1.36 1.12 126 103 8 10.0-146 20.1 37 Chloroethane 1.08 U 1.60 1.22 148 113 8 10.0-146 J5 26.8 40 Chloroform 1.08 U 1.32 1.08 122 99.5 8 10.0-146 20.3 37 Chloromethane 1.08 U 1.24 1.09 115 101 8 10.0-159 13.0 37 2-Chlorotoluene 1.08 U 1.23 1.44 114 133 8 10.0-159 15.4 38 4-Chlorotoluene 1.08 U 1.19 1.41 110 130 8 10.0-155 16.7 39 1,2-Dibromo-3-Chloropropane 1.08 U 0.941 1.34 86.9 124 8 10.0-151 35.2 39 1,2-Dibromoethane 1.08 U 1.31 1.26 121 116 8 10.0-148 4.22 34 Dibromomethane 1.08 U 1.65 1.24 152 115 8 10.0-147 J5 27.7 35 1,2-Dichlorobenzene 1.08 U 1.24 1.19 115 110 8 10.0-155 4.44 37 1,3-Dichlorobenzene 1.08 U 1.22 1.18 113 109 8 10.0-153 3.60 38 1,4-Dichlorobenzene 1.08 U 1.14 1.12 105 103 8 10.0-151 1.92 38 Dichlorodifluoromethane 1.08 U 1.96 1.61 181 149 8 10.0-160 J5 19.4 35 1,1-Dichloroethane 1.08 U 1.63 1.13 151 104 8 10.0-147 J5 36.9 37 1,2-Dichloroethane 1.08 U 1.37 1.26 127 116 8 10.0-148 9.05 35 1,1-Dichloroethene 1.08 U 1.09 0.933 101 86.2 8 10.0-155 15.8 37 cis-1,2-Dichloroethene 1.08 U 1.47 1.02 136 94.2 8 10.0-149 36.3 37 trans-1,2-Dichloroethene 1.08 U 1.22 0.976 113 90.2 8 10.0-150 22.4 37 1,2-Dichloropropane 1.08 U 1.78 1.42 164 131 8 10.0-148 J5 22.4 37 1,1-Dichloropropene 1.08 U 1.36 1.36 126 126 8 10.0-153 0.000 35 1,3-Dichloropropane 1.08 U 1.36 1.29 126 119 8 10.0-154 5.71 35 cis-1,3-Dichloropropene 1.08 U 1.74 1.14 161 105 8 10.0-151 J5 J3 42.1 37 trans-1,3-Dichloropropene 1.08 U 1.46 1.01 135 93.0 8 10.0-148 36.8 37 2,2-Dichloropropane 1.08 U 1.26 1.04 116 96.2 8 10.0-138 18.7 36 Di-isopropyl ether 1.08 U 1.68 1.19 155 110 8 10.0-147 J5 34.0 36 Ethylbenzene 1.08 0.189 1.66 1.63 136 134 8 10.0-160 1.32 38 Hexachloro-1,3-butadiene 1.08 U 1.65 2.27 152 210 8 10.0-160 J5 32.0 40 Isopropylbenzene 1.08 0.0893 1.44 1.44 125 125 8 10.0-155 0.000 38 p-Isopropyltoluene 1.08 0.198 2.52 2.53 215 216 8 10.0-160 J5 J5 0.428 40 2-Butanone (MEK) 5.41 U 7.85 7.57 145 140 8 10.0-160 3.65 40 Methylene Chloride 1.08 U 1.21 1.02 112 94.1 8 10.0-141 17.4 37 4-Methyl-2-pentanone (MIBK) 5.41 U 8.27 5.41 153 100 8 10.0-160 J3 41.8 35 Methyl tert-butyl ether 1.08 U 1.41 1.03 130 95.6 8 11.0-147 30.5 35 Naphthalene 1.08 U 2.61 3.58 241 331 8 10.0-160 J5 J5 31.5 36 n-Propylbenzene 1.08 0.376 1.74 2.35 126 182 8 10.0-158 J5 29.6 38 Styrene 1.08 U 1.36 1.32 126 122 8 10.0-160 3.23 40
1,1,1,2-Tetrachloroethane 1.08 U 1.23 1.20 114 111 8 10.0-149 2.67 39 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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WG1517839 QUALITY CONTROL SUMMARY ONE LAB. NATIONWIDE.

Volatile Organic Compounds (GC/MS) by Method 8260B L1244222-01,02 L1244186-02 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1244186-02 07/30/20 21:25 • (MS) R3555022-3 07/30/20 22:46 • (MSD) R3555022-4 07/30/20 23:06 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
1,1,2,2-Tetrachloroethane 1.08 U 1.56 1.92 144 177 8 10.0-160 J5 20.6 35 Tetrachloroethene 1.08 U 1.43 0.976 132 90.2 8 10.0-156 37.6 39 Toluene 1.08 0.0619 1.72 1.16 153 101 8 10.0-156 J3 39.1 38 1,1,2-Trichlorotrifluoroethane 1.08 U 1.30 1.07 120 98.7 8 10.0-160 19.5 36 1,2,3-Trichlorobenzene 1.08 U 2.08 2.61 192 241 8 10.0-160 J5 J5 22.6 40 1,2,4-Trichlorobenzene 1.08 U 1.27 1.62 117 150 8 10.0-160 24.7 40 1,1,1-Trichloroethane 1.08 U 1.39 1.18 128 109 8 10.0-144 16.0 35 1,1,2-Trichloroethane 1.08 U 1.58 1.12 146 103 8 10.0-160 34.5 35 Trichloroethene 1.08 U 1.49 1.48 138 137 8 10.0-156 0.727 38 Trichlorofluoromethane 1.08 U 1.56 1.21 144 112 8 10.0-160 25.0 40 1,2,3-Trichloropropane 1.08 U 1.42 1.74 131 161 8 10.0-156 J5 20.5 35 1,2,3-Trimethylbenzene 1.08 1.35 3.65 3.60 212 208 8 10.0-160 J5 J5 1.19 36 1,2,4-Trimethylbenzene 1.08 2.79 6.34 7.64 328 448 8 10.0-160 J5 J5 18.6 36 1,3,5-Trimethylbenzene 1.08 0.563 2.22 2.58 153 186 8 10.0-160 J5 14.9 38 Vinyl chloride 1.08 U 1.22 0.969 113 89.5 8 10.0-160 23.2 37 Xylenes, Total 3.25 0.877 5.69 5.60 148 145 8 10.0-160 1.73 38 (S) Toluene-d8 109 79.2 75.0-131
(S) 4-Bromofluorobenzene 118 122 67.0-138
(S) 1,2-Dichloroethane-d4 109 101 70.0-130
Sample Narrative:

OS: Lowest possible dilution due to sample matrix.
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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WG1518028 QUALITY CONTROL SUMMARY ONE LAB. NATIONWIDE.

Volatile Organic Compounds (GC/MS) by Method 8260B L1244222-03 Method Blank (MB)
(MB) R3555046-2 07/31/20 00:43
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
Acetone U 0.0365 0.0500
Acrylonitrile U 0.00361 0.0125
Benzene U 0.000467 0.00100
Bromobenzene U 0.000900 0.0125
Bromodichloromethane U 0.000725 0.00250
Bromoform U 0.00117 0.0250
Bromomethane U 0.00197 0.0125
n-Butylbenzene U 0.00525 0.0125
sec-Butylbenzene U 0.00288 0.0125
tert-Butylbenzene U 0.00195 0.00500
Carbon tetrachloride U 0.000898 0.00500
Chlorobenzene U 0.000210 0.00250
Chlorodibromomethane U 0.000612 0.00250
Chloroethane U 0.00170 0.00500
Chloroform U 0.00103 0.00250
Chloromethane U 0.00435 0.0125
2-Chlorotoluene U 0.000865 0.00250
4-Chlorotoluene U 0.000450 0.00500
1,2-Dibromo-3-Chloropropane U 0.00390 0.0250
1,2-Dibromoethane U 0.000648 0.00250
Dibromomethane U 0.000750 0.00500
1,2-Dichlorobenzene U 0.000425 0.00500
1,3-Dichlorobenzene U 0.000600 0.00500
1,4-Dichlorobenzene U 0.000700 0.00500
Dichlorodifluoromethane U 0.00161 0.00250
1,1-Dichloroethane U 0.000491 0.00250
1,2-Dichloroethane U 0.000649 0.00250
1,1-Dichloroethene U 0.000606 0.00250
cis-1,2-Dichloroethene U 0.000734 0.00250
trans-1,2-Dichloroethene U 0.00104 0.00500
1,2-Dichloropropane U 0.00142 0.00500
1,1-Dichloropropene U 0.000809 0.00250
1,3-Dichloropropane U 0.000501 0.00500
cis-1,3-Dichloropropene U 0.000757 0.00250
trans-1,3-Dichloropropene U 0.00114 0.00500
2,2-Dichloropropane U 0.00138 0.00250
Di-isopropyl ether U 0.000410 0.00100
Ethylbenzene U 0.000737 0.00250
Hexachloro-1,3-butadiene U 0.00600 0.0250
Isopropylbenzene U 0.000425 0.00250
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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WG1518028 QUALITY CONTROL SUMMARY ONE LAB. NATIONWIDE.

Volatile Organic Compounds (GC/MS) by Method 8260B L1244222-03 Method Blank (MB)
(MB) R3555046-2 07/31/20 00:43
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
p-Isopropyltoluene U 0.00255 0.00500
2-Butanone (MEK) U 0.0635 0.100
Methylene Chloride U 0.00664 0.0250
4-Methyl-2-pentanone (MIBK) U 0.00228 0.0250
Methyl tert-butyl ether U 0.000350 0.00100
Naphthalene U 0.00488 0.0125
n-Propylbenzene U 0.000950 0.00500
Styrene U 0.000229 0.0125
1,1,1,2-Tetrachloroethane U 0.000948 0.00250
1,1,2,2-Tetrachloroethane U 0.000695 0.00250
Tetrachloroethene U 0.000896 0.00250
Toluene U 0.00130 0.00500
1,1,2-Trichlorotrifluoroethane U 0.000754 0.00250
1,2,3-Trichlorobenzene U 0.00733 0.0125
1,2,4-Trichlorobenzene U 0.00440 0.0125
1,1,1-Trichloroethane U 0.000923 0.00250
1,1,2-Trichloroethane U 0.000597 0.00250
Trichloroethene U 0.000584 0.00100
Trichlorofluoromethane U 0.000827 0.00250
1,2,3-Trichloropropane U 0.00162 0.0125
1,2,3-Trimethylbenzene U 0.00158 0.00500
1,2,4-Trimethylbenzene U 0.00158 0.00500
1,3,5-Trimethylbenzene U 0.00200 0.00500
Vinyl chloride U 0.00116 0.00250
Xylenes, Total U 0.000880 0.00650
(S) Toluene-d8 106 75.0-131
(S) 4-Bromofluorobenzene 98.7 67.0-138
(S) 1,2-Dichloroethane-d4 79.5 70.0-130
Laboratory Control Sample (LCS)
(LCS) R3555046-1 07/30/20 23:08
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
Acetone 0.625 0.546 87.4 10.0-160
Acrylonitrile 0.625 0.597 95.5 45.0-153
Benzene 0.125 0.107 85.6 70.0-123
Bromobenzene 0.125 0.102 81.6 73.0-121
Bromodichloromethane 0.125 0.126 101 73.0-121
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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WG1518028 QUALITY CONTROL SUMMARY ONE LAB. NATIONWIDE.

Volatile Organic Compounds (GC/MS) by Method 8260B L1244222-03 Laboratory Control Sample (LCS)
(LCS) R3555046-1 07/30/20 23:08
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
Bromoform 0.125 0.102 81.6 64.0-132
Bromomethane 0.125 0.0776 62.1 56.0-147
n-Butylbenzene 0.125 0.102 81.6 68.0-135
sec-Butylbenzene 0.125 0.0953 76.2 74.0-130
tert-Butylbenzene 0.125 0.126 101 75.0-127
Carbon tetrachloride 0.125 0.111 88.8 66.0-128
Chlorobenzene 0.125 0.117 93.6 76.0-128
Chlorodibromomethane 0.125 0.104 83.2 74.0-127
Chloroethane 0.125 0.118 94.4 61.0-134
Chloroform 0.125 0.123 98.4 72.0-123
Chloromethane 0.125 0.148 118 51.0-138
2-Chlorotoluene 0.125 0.111 88.8 75.0-124
4-Chlorotoluene 0.125 0.0985 78.8 75.0-124
1,2-Dibromo-3-Chloropropane 0.125 0.0994 79.5 59.0-130
1,2-Dibromoethane 0.125 0.123 98.4 74.0-128
Dibromomethane 0.125 0.107 85.6 75.0-122
1,2-Dichlorobenzene 0.125 0.0939 75.1 76.0-124 J4
1,3-Dichlorobenzene 0.125 0.104 83.2 76.0-125
1,4-Dichlorobenzene 0.125 0.0961 76.9 77.0-121 J4
Dichlorodifluoromethane 0.125 0.0791 63.3 43.0-156
1,1-Dichloroethane 0.125 0.126 101 70.0-127
1,2-Dichloroethane 0.125 0.0923 73.8 65.0-131
1,1-Dichloroethene 0.125 0.120 96.0 65.0-131
cis-1,2-Dichloroethene 0.125 0.0995 79.6 73.0-125
trans-1,2-Dichloroethene 0.125 0.154 123 71.0-125
1,2-Dichloropropane 0.125 0.129 103 74.0-125
1,1-Dichloropropene 0.125 0.111 88.8 73.0-125
1,3-Dichloropropane 0.125 0.107 85.6 80.0-125
cis-1,3-Dichloropropene 0.125 0.114 91.2 76.0-127
trans-1,3-Dichloropropene 0.125 0.104 83.2 73.0-127
2,2-Dichloropropane 0.125 0.103 82.4 59.0-135
Di-isopropyl ether 0.125 0.113 90.4 60.0-136
Ethylbenzene 0.125 0.123 98.4 74.0-126
Hexachloro-1,3-butadiene 0.125 0.103 82.4 57.0-150
Isopropylbenzene 0.125 0.118 94.4 72.0-127
p-Isopropyltoluene 0.125 0.0973 77.8 72.0-133
2-Butanone (MEK) 0.625 0.599 95.8 30.0-160
Methylene Chloride 0.125 0.0972 77.8 68.0-123
4-Methyl-2-pentanone (MIBK) 0.625 0.541 86.6 56.0-143
Methyl tert-butyl ether 0.125 0.127 102 66.0-132
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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WG1518028 QUALITY CONTROL SUMMARY ONE LAB. NATIONWIDE.

Volatile Organic Compounds (GC/MS) by Method 8260B L1244222-03 Laboratory Control Sample (LCS)
(LCS) R3555046-1 07/30/20 23:08
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
Naphthalene 0.125 0.0969 77.5 59.0-130
n-Propylbenzene 0.125 0.0920 73.6 74.0-126 J4
Styrene 0.125 0.122 97.6 72.0-127
1,1,1,2-Tetrachloroethane 0.125 0.126 101 74.0-129
1,1,2,2-Tetrachloroethane 0.125 0.0935 74.8 68.0-128
Tetrachloroethene 0.125 0.124 99.2 70.0-136
Toluene 0.125 0.113 90.4 75.0-121
1,1,2-Trichlorotrifluoroethane 0.125 0.121 96.8 61.0-139 1,2,3-Trichlorobenzene 0.125 0.107 85.6 59.0-139
1,2,4-Trichlorobenzene 0.125 0.102 81.6 62.0-137
1,1,1-Trichloroethane 0.125 0.115 92.0 69.0-126
1,1,2-Trichloroethane 0.125 0.148 118 78.0-123
Trichloroethene 0.125 0.128 102 76.0-126
Trichlorofluoromethane 0.125 0.108 86.4 61.0-142
1,2,3-Trichloropropane 0.125 0.118 94.4 67.0-129
1,2,3-Trimethylbenzene 0.125 0.109 87.2 74.0-124
1,2,4-Trimethylbenzene 0.125 0.0837 67.0 70.0-126 J4
1,3,5-Trimethylbenzene 0.125 0.0962 77.0 73.0-127
Vinyl chloride 0.125 0.113 90.4 63.0-134
Xylenes, Total 0.375 0.329 87.7 72.0-127
(S) Toluene-d8 101 75.0-131
(S) 4-Bromofluorobenzene 100 67.0-138
(S) 1,2-Dichloroethane-d4 84.4 70.0-130
1 Cp
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WG1517142 QUALITY CONTROL SUMMARY ONE LAB. NATIONWIDE.

Semi-Volatile Organic Compounds (GC) by Method 8015 L1244222-01,02,03 Method Blank (MB)
(MB) R3554872-1 07/30/20 12:41
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
C12-C22 Hydrocarbons U 0.733 4.00
C22-C32 Hydrocarbons U 1.33 4.00
C32-C40 Hydrocarbons U 1.33 4.00
(S) o-Terphenyl 102 18.0-148
Laboratory Control Sample (LCS)
(LCS) R3554872-2 07/30/20 12:56
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
C22-C32 Hydrocarbons 25.0 23.1 92.4 50.0-150
C12-C22 Hydrocarbons 25.0 25.0 100 50.0-150
(S) o-Terphenyl 77.0 18.0-148
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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GLOSSARY OF TERMS ONE LAB. NATIONWIDE.

Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative.

Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received.

Abbreviations and Definitions
(dry) Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils].

MDL Method Detection Limit.

MDL (dry) Method Detection Limit.

RDL Reported Detection Limit.

RDL (dry) Reported Detection Limit.

Rec. Recovery.

RPD Relative Percent Difference.

SDG Sample Delivery Group.
(S)
Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be detected in all environmental media.

U Not detected at the Reporting Limit (or MDL where applicable).

Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported.

Dilution
If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor.

Limits
These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges.

Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG.

Qualifier
This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable.

Result
The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte.

Uncertainty
(Radiochemistry) Confidence level of 2 sigma.

Case Narrative (Cn)
A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report.

Quality Control
Summary (Qc)
This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material.

Sample Chain of
Custody (Sc)
This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis.

Sample Results (Sr)
This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported.

Sample Summary (Ss) This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis.

Qualifier Description
B The same analyte is found in the associated blank.

J The identification of the analyte is acceptable; the reported value is an estimate.

J3 The associated batch QC was outside the established quality control range for precision.

J4 The associated batch QC was outside the established quality control range for accuracy.

J5 The sample matrix interfered with the ability to make any accurate determination; spike value is high.

J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low.

V The sample concentration is too high to evaluate accurate spike recoveries. 1 Cp
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ONE LAB. NATIONWIDE.

Pace National is the only environmental laboratory accredited/certified to support your work nationwide from one location. One phone call, one point of contact, one laboratory. No other lab is as accessible or prepared to handle your needs throughout the country. Our capacity and capability from our single location laboratory is comparable to the collective totals of the network laboratories in our industry. The most significant benefit to our one location design is the design of our laboratory campus. The model is conducive to accelerated productivity, decreasing turn-around time, and preventing cross contamination, thus protecting sample integrity. Our focus on premium quality and prompt service allows us to be YOUR LAB OF CHOICE. * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace National.

State Accreditations
Alabama 40660 Nebraska NE-OS-15-05
Alaska 17-026 Nevada TN-03-2002-34
Arizona AZ0612 New Hampshire 2975
Arkansas 88-0469 New Jersey–NELAP TN002
California 2932 New Mexico ¹ n/a
Colorado TN00003 New York 11742
Connecticut PH-0197 North Carolina Env375
Florida E87487 North Carolina ¹ DW21704
Georgia NELAP North Carolina ³ 41
Georgia ¹ 923 North Dakota R-140
Idaho TN00003 Ohio–VAP CL0069
Illinois 200008 Oklahoma 9915
Indiana C-TN-01 Oregon TN200002
Iowa 364 Pennsylvania 68-02979
Kansas E-10277 Rhode Island LAO00356
Kentucky ¹ ⁶ 90010 South Carolina 84004
Kentucky ² 16 South Dakota n/a
Louisiana AI30792 Tennessee ¹ ⁴ 2006
Louisiana ¹ LA180010 Texas T104704245-18-15
Maine TN0002 Texas ⁵ LAB0152
Maryland 324 Utah TN00003
Massachusetts M-TN003 Vermont VT2006
Michigan 9958 Virginia 460132
Minnesota 047-999-395 Washington C847
Mississippi TN00003 West Virginia 233
Missouri 340 Wisconsin 9980939910
Montana CERT0086 Wyoming A2LA
Third Party Federal Accreditations
A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789
A2LA – ISO 17025 ⁵ 1461.02 DOD 1461.01
Canada 1461.01 USDA P330-15-00234
EPA–Crypto TN00003

ACCREDITATIONS & LOCATIONS
¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable Our Locations
Pace National has sixty-four client support centers that provide sample pickup and/or the delivery of sampling supplies. If you would like assistance from one of our support offices, please contact our main office. Pace National performs all testing at our central laboratory. 1 Cp
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ANALYTICAL REPORT
August 05, 2020
RMD Environmental - Walnut Creek, CA
Sample Delivery Group: L1244623
Samples Received: 07/29/2020
Project Number: 01-PRO-003
Description: TALBOTS
Report To: Doug Whichard
1371 Oakland Blvd.

Suite 200
Walnut Creek, CA 94596
Entire Report Reviewed By:

August 05, 2020
[Preliminary Report]
Jared Starkey
Project Manager
Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received.
12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com 1 Cp
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Jared Starkey
Project Manager
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TABLE OF CONTENTS ONE LAB. NATIONWIDE.

Cp: Cover Page 1
Tc: Table of Contents 2
Ss: Sample Summary 3
Cn: Case Narrative 4
Ds: Detection Summary 5
Sr: Sample Results 6
SB-03-30' L1244623-01 6
SB-01-22-32' L1244623-02 8
SB02-22-32' L1244623-03 10
Qc: Quality Control Summary 12
Total Solids by Method 2540 G-2011 12
Volatile Organic Compounds (GC) by Method 8015 13
Volatile Organic Compounds (GC/MS) by Method 8260B 15
Gl: Glossary of Terms 27
Al: Accreditations & Locations 28
Sc: Sample Chain of Custody 29
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
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SAMPLE SUMMARY ONE LAB. NATIONWIDE.

Collected by Collected date/time Received date/time
SB-03-30' L1244623-01 Solid B. Angulo 07/27/20 16:50 07/29/20 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Total Solids by Method 2540 G-2011 WG1519757 1 08/04/20 07:08 08/04/20 07:20 KBC Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015 WG1518853 1.14 07/27/20 16:50 08/01/20 21:45 ACG Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1518486 1 07/27/20 16:50 07/31/20 16:27 DWR Mt. Juliet, TN Collected by Collected date/time Received date/time
SB-01-22-32' L1244623-02 GW B. Angulo 07/28/20 07:55 07/29/20 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Volatile Organic Compounds (GC) by Method 8015 WG1518809 2 08/01/20 12:30 08/01/20 12:30 BMB Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1518968 2 08/01/20 22:42 08/01/20 22:42 DWR Mt. Juliet, TN Collected by Collected date/time Received date/time
SB02-22-32' L1244623-03 GW B. Angulo 07/28/20 09:40 07/29/20 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Volatile Organic Compounds (GC) by Method 8015 WG1518809 2 08/01/20 12:53 08/01/20 12:53 BMB Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1518968 2 08/01/20 23:01 08/01/20 23:01 DWR Mt. Juliet, TN 1 Cp
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5 Ds
6 Sr
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CASE NARRATIVE ONE LAB. NATIONWIDE.

All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report]
Jared Starkey
Project Manager
1 Cp
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5 Ds
6 Sr
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DETECTION SUMMARY ONE LAB. NATIONWIDE.

Volatile Organic Compounds (GC) by Method 8015
Result Qualifier MDL RDL Dilution Analysis Batch
Client ID Lab Sample ID Analyte ug/l ug/l ug/l date / time SB-01-22-32' L1244623-02 TPHG C5 - C12 122 B J 60.8 200 2 08/01/2020 12:30 WG1518809 SB02-22-32' L1244623-03 TPHG C5 - C12 180 B J 60.8 200 2 08/01/2020 12:53 WG1518809 Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Client ID Lab Sample ID Analyte ug/l ug/l ug/l date / time SB-01-22-32' L1244623-02 Carbon disulfide 0.354 B J 0.192 1.00 2 08/01/2020 22:42 WG1518968 SB-01-22-32' L1244623-02 Chloroform 0.736 J 0.222 1.00 2 08/01/2020 22:42 WG1518968 SB02-22-32' L1244623-03 Carbon disulfide 0.319 B J 0.192 1.00 2 08/01/2020 23:01 WG1518968 SB02-22-32' L1244623-03 Chloroform 0.578 J 0.222 1.00 2 08/01/2020 23:01 WG1518968 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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SAMPLE RESULTS - 01 ONE LAB. NATIONWIDE.

L1244623
SB-03-30'
Collected date/time: 07/27/20 16:50
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte % date / time
Total Solids 84.6 1 08/04/2020 07:20 WG1519757
Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
TPHG C5 - C12 U 0.0447 0.135 1.14 08/01/2020 21:45 WG1518853 (S) a,a,a-Trifluorotoluene(FID) 100 77.0-120 08/01/2020 21:45 WG1518853 Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Acetone U J4 0.0528 0.0724 1 07/31/2020 16:27 WG1518486 Acrylonitrile U 0.00522 0.0181 1 07/31/2020 16:27 WG1518486 Benzene U 0.000676 0.00145 1 07/31/2020 16:27 WG1518486 Bromobenzene U 0.00130 0.0181 1 07/31/2020 16:27 WG1518486 Bromodichloromethane U 0.00105 0.00362 1 07/31/2020 16:27 WG1518486 Bromoform U 0.00169 0.0362 1 07/31/2020 16:27 WG1518486 Bromomethane U 0.00285 0.0181 1 07/31/2020 16:27 WG1518486 n-Butylbenzene U 0.00760 0.0181 1 07/31/2020 16:27 WG1518486 sec-Butylbenzene U 0.00417 0.0181 1 07/31/2020 16:27 WG1518486 tert-Butylbenzene U 0.00282 0.00724 1 07/31/2020 16:27 WG1518486 Carbon tetrachloride U 0.00130 0.00724 1 07/31/2020 16:27 WG1518486 Chlorobenzene U 0.000304 0.00362 1 07/31/2020 16:27 WG1518486 Chlorodibromomethane U 0.000886 0.00362 1 07/31/2020 16:27 WG1518486 Chloroethane U 0.00246 0.00724 1 07/31/2020 16:27 WG1518486 Chloroform U 0.00149 0.00362 1 07/31/2020 16:27 WG1518486 Chloromethane U 0.00630 0.0181 1 07/31/2020 16:27 WG1518486 2-Chlorotoluene U 0.00125 0.00362 1 07/31/2020 16:27 WG1518486 4-Chlorotoluene U 0.000651 0.00724 1 07/31/2020 16:27 WG1518486 1,2-Dibromo-3-Chloropropane U 0.00564 0.0362 1 07/31/2020 16:27 WG1518486 1,2-Dibromoethane U 0.000938 0.00362 1 07/31/2020 16:27 WG1518486 Dibromomethane U 0.00109 0.00724 1 07/31/2020 16:27 WG1518486 1,2-Dichlorobenzene U 0.000615 0.00724 1 07/31/2020 16:27 WG1518486 1,3-Dichlorobenzene U 0.000868 0.00724 1 07/31/2020 16:27 WG1518486 1,4-Dichlorobenzene U 0.00101 0.00724 1 07/31/2020 16:27 WG1518486 Dichlorodifluoromethane U 0.00233 0.00362 1 07/31/2020 16:27 WG1518486 1,1-Dichloroethane U 0.000711 0.00362 1 07/31/2020 16:27 WG1518486 1,2-Dichloroethane U 0.000939 0.00362 1 07/31/2020 16:27 WG1518486 1,1-Dichloroethene U 0.000877 0.00362 1 07/31/2020 16:27 WG1518486 cis-1,2-Dichloroethene U 0.00106 0.00362 1 07/31/2020 16:27 WG1518486 trans-1,2-Dichloroethene U 0.00151 0.00724 1 07/31/2020 16:27 WG1518486 1,2-Dichloropropane U 0.00206 0.00724 1 07/31/2020 16:27 WG1518486 1,1-Dichloropropene U 0.00117 0.00362 1 07/31/2020 16:27 WG1518486 1,3-Dichloropropane U 0.000725 0.00724 1 07/31/2020 16:27 WG1518486 cis-1,3-Dichloropropene U 0.00110 0.00362 1 07/31/2020 16:27 WG1518486 trans-1,3-Dichloropropene U 0.00165 0.00724 1 07/31/2020 16:27 WG1518486 2,2-Dichloropropane U 0.00200 0.00362 1 07/31/2020 16:27 WG1518486 Di-isopropyl ether U 0.000593 0.00145 1 07/31/2020 16:27 WG1518486 Ethylbenzene U 0.00107 0.00362 1 07/31/2020 16:27 WG1518486 Hexachloro-1,3-butadiene U 0.00868 0.0362 1 07/31/2020 16:27 WG1518486 Isopropylbenzene U 0.000615 0.00362 1 07/31/2020 16:27 WG1518486 p-Isopropyltoluene U 0.00369 0.00724 1 07/31/2020 16:27 WG1518486 2-Butanone (MEK) U 0.0919 0.145 1 07/31/2020 16:27 WG1518486 Methylene Chloride U 0.00961 0.0362 1 07/31/2020 16:27 WG1518486 4-Methyl-2-pentanone (MIBK) U 0.00330 0.0362 1 07/31/2020 16:27 WG1518486 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
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SAMPLE RESULTS - 01 ONE LAB. NATIONWIDE.

L1244623
SB-03-30'
Collected date/time: 07/27/20 16:50
Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Methyl tert-butyl ether U 0.000507 0.00145 1 07/31/2020 16:27 WG1518486 Naphthalene U 0.00706 0.0181 1 07/31/2020 16:27 WG1518486 n-Propylbenzene U 0.00137 0.00724 1 07/31/2020 16:27 WG1518486 Styrene U 0.000331 0.0181 1 07/31/2020 16:27 WG1518486
1,1,1,2-Tetrachloroethane U 0.00137 0.00362 1 07/31/2020 16:27 WG1518486 1,1,2,2-Tetrachloroethane U 0.00101 0.00362 1 07/31/2020 16:27 WG1518486 1,1,2-Trichlorotrifluoroethane U 0.00109 0.00362 1 07/31/2020 16:27 WG1518486 Tetrachloroethene U 0.00130 0.00362 1 07/31/2020 16:27 WG1518486 Toluene U 0.00188 0.00724 1 07/31/2020 16:27 WG1518486
1,2,3-Trichlorobenzene U 0.0106 0.0181 1 07/31/2020 16:27 WG1518486 1,2,4-Trichlorobenzene U 0.00637 0.0181 1 07/31/2020 16:27 WG1518486 1,1,1-Trichloroethane U 0.00134 0.00362 1 07/31/2020 16:27 WG1518486 1,1,2-Trichloroethane U 0.000864 0.00362 1 07/31/2020 16:27 WG1518486 Trichloroethene U 0.000845 0.00145 1 07/31/2020 16:27 WG1518486 Trichlorofluoromethane U 0.00120 0.00362 1 07/31/2020 16:27 WG1518486 1,2,3-Trichloropropane U 0.00234 0.0181 1 07/31/2020 16:27 WG1518486 1,2,4-Trimethylbenzene U 0.00229 0.00724 1 07/31/2020 16:27 WG1518486 1,2,3-Trimethylbenzene U 0.00229 0.00724 1 07/31/2020 16:27 WG1518486 1,3,5-Trimethylbenzene U 0.00289 0.00724 1 07/31/2020 16:27 WG1518486 Vinyl chloride U 0.00168 0.00362 1 07/31/2020 16:27 WG1518486 Xylenes, Total U 0.00127 0.00941 1 07/31/2020 16:27 WG1518486 (S) Toluene-d8 106 75.0-131 07/31/2020 16:27 WG1518486
(S) 4-Bromofluorobenzene 95.3 67.0-138 07/31/2020 16:27 WG1518486 (S) 1,2-Dichloroethane-d4 102 70.0-130 07/31/2020 16:27 WG1518486 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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5470 of 11211
SAMPLE RESULTS - 02 ONE LAB. NATIONWIDE.

L1244623
SB-01-22-32'
Collected date/time: 07/28/20 07:55
Volatile Organic Compounds (GC) by Method 8015
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPHG C5 - C12 122 B J 60.8 200 2 08/01/2020 12:30 WG1518809 (S)
a,a,a-Trifluorotoluene(FID) 109 78.0-120 08/01/2020 12:30 WG1518809 Sample Narrative:

L1244623-02 WG1518809: Lowest possible dilution due to sediment in sample vial.

Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Acetone U 22.6 50.0 2 08/01/2020 22:42 WG1518968
Acrylonitrile U 1.34 10.0 2 08/01/2020 22:42 WG1518968
Benzene U 0.188 1.00 2 08/01/2020 22:42 WG1518968
Bromobenzene U 0.236 1.00 2 08/01/2020 22:42 WG1518968
Bromodichloromethane U 0.272 1.00 2 08/01/2020 22:42 WG1518968 Bromochloromethane U 0.256 1.00 2 08/01/2020 22:42 WG1518968 Bromoform U 0.258 1.00 2 08/01/2020 22:42 WG1518968
Bromomethane U 1.21 5.00 2 08/01/2020 22:42 WG1518968
n-Butylbenzene U 0.314 1.00 2 08/01/2020 22:42 WG1518968 sec-Butylbenzene U 0.250 1.00 2 08/01/2020 22:42 WG1518968 tert-Butylbenzene U 0.254 1.00 2 08/01/2020 22:42 WG1518968 Carbon disulfide 0.354 B J 0.192 1.00 2 08/01/2020 22:42 WG1518968 Carbon tetrachloride U 0.256 1.00 2 08/01/2020 22:42 WG1518968 Chlorobenzene U 0.234 1.00 2 08/01/2020 22:42 WG1518968 Chlorodibromomethane U 0.280 1.00 2 08/01/2020 22:42 WG1518968 Chloroethane U 0.384 5.00 2 08/01/2020 22:42 WG1518968
Chloroform 0.736 J 0.222 1.00 2 08/01/2020 22:42 WG1518968 Chloromethane U 1.92 2.50 2 08/01/2020 22:42 WG1518968
2-Chlorotoluene U 0.212 1.00 2 08/01/2020 22:42 WG1518968 4-Chlorotoluene U 0.228 1.00 2 08/01/2020 22:42 WG1518968 1,2-Dibromo-3-Chloropropane U 0.552 5.00 2 08/01/2020 22:42 WG1518968 1,2-Dibromoethane U 0.252 1.00 2 08/01/2020 22:42 WG1518968 Dibromomethane U 0.244 1.00 2 08/01/2020 22:42 WG1518968 1,2-Dichlorobenzene U 0.214 1.00 2 08/01/2020 22:42 WG1518968 1,3-Dichlorobenzene U 0.598 1.00 2 08/01/2020 22:42 WG1518968 1,4-Dichlorobenzene U 0.240 1.00 2 08/01/2020 22:42 WG1518968 Dichlorodifluoromethane U 0.748 5.00 2 08/01/2020 22:42 WG1518968 1,1-Dichloroethane U 0.200 1.00 2 08/01/2020 22:42 WG1518968 1,2-Dichloroethane U 0.164 1.00 2 08/01/2020 22:42 WG1518968 1,1-Dichloroethene U 0.376 1.00 2 08/01/2020 22:42 WG1518968 cis-1,2-Dichloroethene U 0.252 1.00 2 08/01/2020 22:42 WG1518968 trans-1,2-Dichloroethene U 0.298 1.00 2 08/01/2020 22:42 WG1518968 1,2-Dichloropropane U 0.298 1.00 2 08/01/2020 22:42 WG1518968 1,1-Dichloropropene U 0.284 1.00 2 08/01/2020 22:42 WG1518968 1,3-Dichloropropane U 0.218 2.00 2 08/01/2020 22:42 WG1518968 cis-1,3-Dichloropropene U 0.222 1.00 2 08/01/2020 22:42 WG1518968 trans-1,3-Dichloropropene U 0.236 1.00 2 08/01/2020 22:42 WG1518968 trans-1,4-Dichloro-2-butene U 0.934 10.0 2 08/01/2020 22:42 WG1518968 2,2-Dichloropropane U 0.322 1.00 2 08/01/2020 22:42 WG1518968 Di-isopropyl ether U 0.210 1.00 2 08/01/2020 22:42 WG1518968 Ethylbenzene U 0.274 1.00 2 08/01/2020 22:42 WG1518968
Hexachloro-1,3-butadiene U 0.674 2.00 2 08/01/2020 22:42 WG1518968 2-Hexanone U 1.57 10.0 2 08/01/2020 22:42 WG1518968
n-Hexane U 1.50 10.0 2 08/01/2020 22:42 WG1518968
Iodomethane U 1.11 10.0 2 08/01/2020 22:42 WG1518968
Isopropylbenzene U 0.210 1.00 2 08/01/2020 22:42 WG1518968 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-PRO-003 L1244623 08/05/20 12:48 8 of 29 DRAFT
5471 of 11211
SAMPLE RESULTS - 02 ONE LAB. NATIONWIDE.

L1244623
SB-01-22-32'
Collected date/time: 07/28/20 07:55
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
p-Isopropyltoluene U 0.240 1.00 2 08/01/2020 22:42 WG1518968 2-Butanone (MEK) U 2.38 10.0 2 08/01/2020 22:42 WG1518968 Methylene Chloride U 0.860 5.00 2 08/01/2020 22:42 WG1518968 4-Methyl-2-pentanone (MIBK) U 0.956 10.0 2 08/01/2020 22:42 WG1518968 Methyl tert-butyl ether U 0.202 1.00 2 08/01/2020 22:42 WG1518968 Naphthalene U 0.348 5.00 2 08/01/2020 22:42 WG1518968
n-Propylbenzene U 0.199 1.00 2 08/01/2020 22:42 WG1518968 Styrene U 0.236 1.00 2 08/01/2020 22:42 WG1518968
1,1,1,2-Tetrachloroethane U 0.294 1.00 2 08/01/2020 22:42 WG1518968 1,1,2,2-Tetrachloroethane U 0.266 1.00 2 08/01/2020 22:42 WG1518968 1,1,2-Trichlorotrifluoroethane U 0.360 1.00 2 08/01/2020 22:42 WG1518968 Tetrachloroethene U 0.600 1.00 2 08/01/2020 22:42 WG1518968 Toluene U 0.556 1.00 2 08/01/2020 22:42 WG1518968
1,2,3-Trichlorobenzene U 0.328 1.00 2 08/01/2020 22:42 WG1518968 1,2,4-Trichlorobenzene U 0.962 2.00 2 08/01/2020 22:42 WG1518968 1,1,1-Trichloroethane U 0.298 1.00 2 08/01/2020 22:42 WG1518968 1,1,2-Trichloroethane U 0.316 1.00 2 08/01/2020 22:42 WG1518968 Trichloroethene U 0.380 1.00 2 08/01/2020 22:42 WG1518968 Trichlorofluoromethane U 0.320 5.00 2 08/01/2020 22:42 WG1518968 1,2,3-Trichloropropane U J4 0.474 5.00 2 08/01/2020 22:42 WG1518968 1,2,4-Trimethylbenzene U 0.644 1.00 2 08/01/2020 22:42 WG1518968 1,2,3-Trimethylbenzene U 0.208 1.00 2 08/01/2020 22:42 WG1518968 1,3,5-Trimethylbenzene U 0.208 1.00 2 08/01/2020 22:42 WG1518968 Vinyl acetate U 1.38 10.0 2 08/01/2020 22:42 WG1518968
Vinyl chloride U 0.468 1.00 2 08/01/2020 22:42 WG1518968 Xylenes, Total U 0.348 3.00 2 08/01/2020 22:42 WG1518968 (S) Toluene-d8 98.3 80.0-120 08/01/2020 22:42 WG1518968 (S) 4-Bromofluorobenzene 90.1 77.0-126 08/01/2020 22:42 WG1518968 (S) 1,2-Dichloroethane-d4 99.0 70.0-130 08/01/2020 22:42 WG1518968 Sample Narrative:

L1244623-02 WG1518968: Lowest possible dilution due to sediment in sample vial. 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

RMD Environmental - Walnut Creek, CA 01-PRO-003 L1244623 08/05/20 11:55 9 of 29 ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

RMD Environmental - Walnut Creek, CA 01-PRO-003 L1244623 08/05/20 12:48 9 of 29 DRAFT
5472 of 11211
SAMPLE RESULTS - 03 ONE LAB. NATIONWIDE.

L1244623
SB02-22-32'
Collected date/time: 07/28/20 09:40
Volatile Organic Compounds (GC) by Method 8015
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPHG C5 - C12 180 B J 60.8 200 2 08/01/2020 12:53 WG1518809 (S)
a,a,a-Trifluorotoluene(FID) 109 78.0-120 08/01/2020 12:53 WG1518809 Sample Narrative:

L1244623-03 WG1518809: Lowest possible dilution due to sediment in sample vial.

Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Acetone U 22.6 50.0 2 08/01/2020 23:01 WG1518968
Acrylonitrile U 1.34 10.0 2 08/01/2020 23:01 WG1518968
Benzene U 0.188 1.00 2 08/01/2020 23:01 WG1518968
Bromobenzene U 0.236 1.00 2 08/01/2020 23:01 WG1518968
Bromodichloromethane U 0.272 1.00 2 08/01/2020 23:01 WG1518968 Bromochloromethane U 0.256 1.00 2 08/01/2020 23:01 WG1518968 Bromoform U 0.258 1.00 2 08/01/2020 23:01 WG1518968
Bromomethane U 1.21 5.00 2 08/01/2020 23:01 WG1518968
n-Butylbenzene U 0.314 1.00 2 08/01/2020 23:01 WG1518968 sec-Butylbenzene U 0.250 1.00 2 08/01/2020 23:01 WG1518968 tert-Butylbenzene U 0.254 1.00 2 08/01/2020 23:01 WG1518968 Carbon disulfide 0.319 B J 0.192 1.00 2 08/01/2020 23:01 WG1518968 Carbon tetrachloride U 0.256 1.00 2 08/01/2020 23:01 WG1518968 Chlorobenzene U 0.234 1.00 2 08/01/2020 23:01 WG1518968 Chlorodibromomethane U 0.280 1.00 2 08/01/2020 23:01 WG1518968 Chloroethane U 0.384 5.00 2 08/01/2020 23:01 WG1518968
Chloroform 0.578 J 0.222 1.00 2 08/01/2020 23:01 WG1518968 Chloromethane U 1.92 2.50 2 08/01/2020 23:01 WG1518968
2-Chlorotoluene U 0.212 1.00 2 08/01/2020 23:01 WG1518968 4-Chlorotoluene U 0.228 1.00 2 08/01/2020 23:01 WG1518968 1,2-Dibromo-3-Chloropropane U 0.552 5.00 2 08/01/2020 23:01 WG1518968 1,2-Dibromoethane U 0.252 1.00 2 08/01/2020 23:01 WG1518968 Dibromomethane U 0.244 1.00 2 08/01/2020 23:01 WG1518968 1,2-Dichlorobenzene U 0.214 1.00 2 08/01/2020 23:01 WG1518968 1,3-Dichlorobenzene U 0.598 1.00 2 08/01/2020 23:01 WG1518968 1,4-Dichlorobenzene U 0.240 1.00 2 08/01/2020 23:01 WG1518968 Dichlorodifluoromethane U 0.748 5.00 2 08/01/2020 23:01 WG1518968 1,1-Dichloroethane U 0.200 1.00 2 08/01/2020 23:01 WG1518968 1,2-Dichloroethane U 0.164 1.00 2 08/01/2020 23:01 WG1518968 1,1-Dichloroethene U 0.376 1.00 2 08/01/2020 23:01 WG1518968 cis-1,2-Dichloroethene U 0.252 1.00 2 08/01/2020 23:01 WG1518968 trans-1,2-Dichloroethene U 0.298 1.00 2 08/01/2020 23:01 WG1518968 1,2-Dichloropropane U 0.298 1.00 2 08/01/2020 23:01 WG1518968 1,1-Dichloropropene U 0.284 1.00 2 08/01/2020 23:01 WG1518968 1,3-Dichloropropane U 0.218 2.00 2 08/01/2020 23:01 WG1518968 cis-1,3-Dichloropropene U 0.222 1.00 2 08/01/2020 23:01 WG1518968 trans-1,3-Dichloropropene U 0.236 1.00 2 08/01/2020 23:01 WG1518968 trans-1,4-Dichloro-2-butene U 0.934 10.0 2 08/01/2020 23:01 WG1518968 2,2-Dichloropropane U 0.322 1.00 2 08/01/2020 23:01 WG1518968 Di-isopropyl ether U 0.210 1.00 2 08/01/2020 23:01 WG1518968 Ethylbenzene U 0.274 1.00 2 08/01/2020 23:01 WG1518968
Hexachloro-1,3-butadiene U 0.674 2.00 2 08/01/2020 23:01 WG1518968 2-Hexanone U 1.57 10.0 2 08/01/2020 23:01 WG1518968
n-Hexane U 1.50 10.0 2 08/01/2020 23:01 WG1518968
Iodomethane U 1.11 10.0 2 08/01/2020 23:01 WG1518968
Isopropylbenzene U 0.210 1.00 2 08/01/2020 23:01 WG1518968 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

RMD Environmental - Walnut Creek, CA 01-PRO-003 L1244623 08/05/20 11:55 10 of 29 ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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5473 of 11211
SAMPLE RESULTS - 03 ONE LAB. NATIONWIDE.

L1244623
SB02-22-32'
Collected date/time: 07/28/20 09:40
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
p-Isopropyltoluene U 0.240 1.00 2 08/01/2020 23:01 WG1518968 2-Butanone (MEK) U 2.38 10.0 2 08/01/2020 23:01 WG1518968 Methylene Chloride U 0.860 5.00 2 08/01/2020 23:01 WG1518968 4-Methyl-2-pentanone (MIBK) U 0.956 10.0 2 08/01/2020 23:01 WG1518968 Methyl tert-butyl ether U 0.202 1.00 2 08/01/2020 23:01 WG1518968 Naphthalene U 0.348 5.00 2 08/01/2020 23:01 WG1518968
n-Propylbenzene U 0.199 1.00 2 08/01/2020 23:01 WG1518968 Styrene U 0.236 1.00 2 08/01/2020 23:01 WG1518968
1,1,1,2-Tetrachloroethane U 0.294 1.00 2 08/01/2020 23:01 WG1518968 1,1,2,2-Tetrachloroethane U 0.266 1.00 2 08/01/2020 23:01 WG1518968 1,1,2-Trichlorotrifluoroethane U 0.360 1.00 2 08/01/2020 23:01 WG1518968 Tetrachloroethene U 0.600 1.00 2 08/01/2020 23:01 WG1518968 Toluene U 0.556 1.00 2 08/01/2020 23:01 WG1518968
1,2,3-Trichlorobenzene U 0.328 1.00 2 08/01/2020 23:01 WG1518968 1,2,4-Trichlorobenzene U 0.962 2.00 2 08/01/2020 23:01 WG1518968 1,1,1-Trichloroethane U 0.298 1.00 2 08/01/2020 23:01 WG1518968 1,1,2-Trichloroethane U 0.316 1.00 2 08/01/2020 23:01 WG1518968 Trichloroethene U 0.380 1.00 2 08/01/2020 23:01 WG1518968 Trichlorofluoromethane U 0.320 5.00 2 08/01/2020 23:01 WG1518968 1,2,3-Trichloropropane U J4 0.474 5.00 2 08/01/2020 23:01 WG1518968 1,2,4-Trimethylbenzene U 0.644 1.00 2 08/01/2020 23:01 WG1518968 1,2,3-Trimethylbenzene U 0.208 1.00 2 08/01/2020 23:01 WG1518968 1,3,5-Trimethylbenzene U 0.208 1.00 2 08/01/2020 23:01 WG1518968 Vinyl acetate U 1.38 10.0 2 08/01/2020 23:01 WG1518968
Vinyl chloride U 0.468 1.00 2 08/01/2020 23:01 WG1518968 Xylenes, Total U 0.348 3.00 2 08/01/2020 23:01 WG1518968 (S) Toluene-d8 96.6 80.0-120 08/01/2020 23:01 WG1518968 (S) 4-Bromofluorobenzene 93.6 77.0-126 08/01/2020 23:01 WG1518968 (S) 1,2-Dichloroethane-d4 97.7 70.0-130 08/01/2020 23:01 WG1518968 Sample Narrative:

L1244623-03 WG1518968: Lowest possible dilution due to sediment in sample vial. 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

RMD Environmental - Walnut Creek, CA 01-PRO-003 L1244623 08/05/20 11:55 11 of 29 ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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5474 of 11211
WG1519757 QUALITY CONTROL SUMMARY ONE LAB. NATIONWIDE.

Total Solids by Method 2540 G-2011 L1244623-01
Method Blank (MB)
(MB) R3556360-1 08/04/20 07:20
MB Result MB Qualifier MB MDL MB RDL
Analyte % % %
Total Solids 0.00100
L1244610-01 Original Sample (OS) • Duplicate (DUP)
(OS) L1244610-01 08/04/20 07:20 • (DUP) R3556360-3 08/04/20 07:20 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits
Analyte % % % %
Total Solids 70.1 70.4 1 0.520 10
Laboratory Control Sample (LCS)
(LCS) R3556360-2 08/04/20 07:20
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte % % % %
Total Solids 50.0 50.0 100 85.0-115
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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5475 of 11211
WG1518809 QUALITY CONTROL SUMMARY ONE LAB. NATIONWIDE.

Volatile Organic Compounds (GC) by Method 8015 L1244623-02,03 Method Blank (MB)
(MB) R3555892-2 08/01/20 11:14
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
TPHG C5 - C12 60.2 J 30.4 100
(S)
a,a,a-Trifluorotoluene(FID) 108 78.0-120
Laboratory Control Sample (LCS)
(LCS) R3555892-1 08/01/20 09:59
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte ug/l ug/l % %
TPHG C5 - C12 5500 4950 90.0 71.0-127
(S)
a,a,a-Trifluorotoluene(FID) 96.5 78.0-120
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

RMD Environmental - Walnut Creek, CA 01-PRO-003 L1244623 08/05/20 11:55 13 of 29 ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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5476 of 11211
WG1518853 QUALITY CONTROL SUMMARY ONE LAB. NATIONWIDE.

Volatile Organic Compounds (GC) by Method 8015 L1244623-01 Method Blank (MB)
(MB) R3555494-3 08/01/20 13:51
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
TPHG C5 - C12 U 0.0332 0.100
(S)
a,a,a-Trifluorotoluene(FID) 105 77.0-120
Laboratory Control Sample (LCS)
(LCS) R3555494-2 08/01/20 13:10
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
TPHG C5 - C12 5.50 5.78 105 72.0-125
(S)
a,a,a-Trifluorotoluene(FID) 95.0 77.0-120
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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5477 of 11211
WG1518486 QUALITY CONTROL SUMMARY ONE LAB. NATIONWIDE.

Volatile Organic Compounds (GC/MS) by Method 8260B L1244623-01 Method Blank (MB)
(MB) R3555474-2 07/31/20 14:29
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
Acetone U 0.0365 0.0500
Acrylonitrile U 0.00361 0.0125
Benzene U 0.000467 0.00100
Bromobenzene U 0.000900 0.0125
Bromodichloromethane U 0.000725 0.00250
Bromoform U 0.00117 0.0250
Bromomethane U 0.00197 0.0125
n-Butylbenzene U 0.00525 0.0125
sec-Butylbenzene U 0.00288 0.0125
tert-Butylbenzene U 0.00195 0.00500
Carbon tetrachloride U 0.000898 0.00500
Chlorobenzene U 0.000210 0.00250
Chlorodibromomethane U 0.000612 0.00250
Chloroethane U 0.00170 0.00500
Chloroform U 0.00103 0.00250
Chloromethane U 0.00435 0.0125
2-Chlorotoluene U 0.000865 0.00250
4-Chlorotoluene U 0.000450 0.00500
1,2-Dibromo-3-Chloropropane U 0.00390 0.0250
1,2-Dibromoethane U 0.000648 0.00250
Dibromomethane U 0.000750 0.00500
1,2-Dichlorobenzene U 0.000425 0.00500
1,3-Dichlorobenzene U 0.000600 0.00500
1,4-Dichlorobenzene U 0.000700 0.00500
Dichlorodifluoromethane U 0.00161 0.00250
1,1-Dichloroethane U 0.000491 0.00250
1,2-Dichloroethane U 0.000649 0.00250
1,1-Dichloroethene U 0.000606 0.00250
cis-1,2-Dichloroethene U 0.000734 0.00250
trans-1,2-Dichloroethene U 0.00104 0.00500
1,2-Dichloropropane U 0.00142 0.00500
1,1-Dichloropropene U 0.000809 0.00250
1,3-Dichloropropane U 0.000501 0.00500
cis-1,3-Dichloropropene U 0.000757 0.00250
trans-1,3-Dichloropropene U 0.00114 0.00500
2,2-Dichloropropane U 0.00138 0.00250
Di-isopropyl ether U 0.000410 0.00100
Ethylbenzene U 0.000737 0.00250
Hexachloro-1,3-butadiene U 0.00600 0.0250
Isopropylbenzene U 0.000425 0.00250
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Volatile Organic Compounds (GC/MS) by Method 8260B L1244623-01 Method Blank (MB)
(MB) R3555474-2 07/31/20 14:29
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
p-Isopropyltoluene U 0.00255 0.00500
2-Butanone (MEK) U 0.0635 0.100
Methylene Chloride U 0.00664 0.0250
4-Methyl-2-pentanone (MIBK) U 0.00228 0.0250
Methyl tert-butyl ether U 0.000350 0.00100
Naphthalene U 0.00488 0.0125
n-Propylbenzene U 0.000950 0.00500
Styrene U 0.000229 0.0125
1,1,1,2-Tetrachloroethane U 0.000948 0.00250
1,1,2,2-Tetrachloroethane U 0.000695 0.00250
Tetrachloroethene U 0.000896 0.00250
Toluene U 0.00130 0.00500
1,1,2-Trichlorotrifluoroethane U 0.000754 0.00250
1,2,3-Trichlorobenzene U 0.00733 0.0125
1,2,4-Trichlorobenzene U 0.00440 0.0125
1,1,1-Trichloroethane U 0.000923 0.00250
1,1,2-Trichloroethane U 0.000597 0.00250
Trichloroethene U 0.000584 0.00100
Trichlorofluoromethane U 0.000827 0.00250
1,2,3-Trichloropropane U 0.00162 0.0125
1,2,3-Trimethylbenzene U 0.00158 0.00500
1,2,4-Trimethylbenzene U 0.00158 0.00500
1,3,5-Trimethylbenzene U 0.00200 0.00500
Vinyl chloride U 0.00116 0.00250
Xylenes, Total U 0.000880 0.00650
(S) Toluene-d8 104 75.0-131
(S) 4-Bromofluorobenzene 95.1 67.0-138
(S) 1,2-Dichloroethane-d4 103 70.0-130
Laboratory Control Sample (LCS)
(LCS) R3555474-1 07/31/20 12:59
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
Acetone 0.625 1.21 194 10.0-160 J4
Acrylonitrile 0.625 0.861 138 45.0-153
Benzene 0.125 0.114 91.2 70.0-123
Bromobenzene 0.125 0.125 100 73.0-121
Bromodichloromethane 0.125 0.119 95.2 73.0-121
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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WG1518486 QUALITY CONTROL SUMMARY ONE LAB. NATIONWIDE.

Volatile Organic Compounds (GC/MS) by Method 8260B L1244623-01 Laboratory Control Sample (LCS)
(LCS) R3555474-1 07/31/20 12:59
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
Bromoform 0.125 0.142 114 64.0-132
Bromomethane 0.125 0.110 88.0 56.0-147
n-Butylbenzene 0.125 0.111 88.8 68.0-135
sec-Butylbenzene 0.125 0.110 88.0 74.0-130
tert-Butylbenzene 0.125 0.107 85.6 75.0-127
Carbon tetrachloride 0.125 0.130 104 66.0-128
Chlorobenzene 0.125 0.117 93.6 76.0-128
Chlorodibromomethane 0.125 0.126 101 74.0-127
Chloroethane 0.125 0.119 95.2 61.0-134
Chloroform 0.125 0.131 105 72.0-123
Chloromethane 0.125 0.0979 78.3 51.0-138
2-Chlorotoluene 0.125 0.124 99.2 75.0-124
4-Chlorotoluene 0.125 0.114 91.2 75.0-124
1,2-Dibromo-3-Chloropropane 0.125 0.117 93.6 59.0-130
1,2-Dibromoethane 0.125 0.132 106 74.0-128
Dibromomethane 0.125 0.134 107 75.0-122
1,2-Dichlorobenzene 0.125 0.121 96.8 76.0-124
1,3-Dichlorobenzene 0.125 0.119 95.2 76.0-125
1,4-Dichlorobenzene 0.125 0.126 101 77.0-121
Dichlorodifluoromethane 0.125 0.123 98.4 43.0-156
1,1-Dichloroethane 0.125 0.122 97.6 70.0-127
1,2-Dichloroethane 0.125 0.154 123 65.0-131
1,1-Dichloroethene 0.125 0.102 81.6 65.0-131
cis-1,2-Dichloroethene 0.125 0.116 92.8 73.0-125
trans-1,2-Dichloroethene 0.125 0.112 89.6 71.0-125
1,2-Dichloropropane 0.125 0.118 94.4 74.0-125
1,1-Dichloropropene 0.125 0.125 100 73.0-125
1,3-Dichloropropane 0.125 0.124 99.2 80.0-125
cis-1,3-Dichloropropene 0.125 0.127 102 76.0-127
trans-1,3-Dichloropropene 0.125 0.127 102 73.0-127
2,2-Dichloropropane 0.125 0.136 109 59.0-135
Di-isopropyl ether 0.125 0.121 96.8 60.0-136
Ethylbenzene 0.125 0.117 93.6 74.0-126
Hexachloro-1,3-butadiene 0.125 0.142 114 57.0-150
Isopropylbenzene 0.125 0.122 97.6 72.0-127
p-Isopropyltoluene 0.125 0.102 81.6 72.0-133
2-Butanone (MEK) 0.625 0.996 159 30.0-160
Methylene Chloride 0.125 0.115 92.0 68.0-123
4-Methyl-2-pentanone (MIBK) 0.625 0.733 117 56.0-143
Methyl tert-butyl ether 0.125 0.128 102 66.0-132
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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WG1518486 QUALITY CONTROL SUMMARY ONE LAB. NATIONWIDE.

Volatile Organic Compounds (GC/MS) by Method 8260B L1244623-01 Laboratory Control Sample (LCS)
(LCS) R3555474-1 07/31/20 12:59
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
Naphthalene 0.125 0.101 80.8 59.0-130
n-Propylbenzene 0.125 0.104 83.2 74.0-126
Styrene 0.125 0.115 92.0 72.0-127
1,1,1,2-Tetrachloroethane 0.125 0.128 102 74.0-129
1,1,2,2-Tetrachloroethane 0.125 0.113 90.4 68.0-128
Tetrachloroethene 0.125 0.136 109 70.0-136
Toluene 0.125 0.113 90.4 75.0-121
1,1,2-Trichlorotrifluoroethane 0.125 0.0976 78.1 61.0-139 1,2,3-Trichlorobenzene 0.125 0.0978 78.2 59.0-139
1,2,4-Trichlorobenzene 0.125 0.116 92.8 62.0-137
1,1,1-Trichloroethane 0.125 0.126 101 69.0-126
1,1,2-Trichloroethane 0.125 0.120 96.0 78.0-123
Trichloroethene 0.125 0.133 106 76.0-126
Trichlorofluoromethane 0.125 0.134 107 61.0-142
1,2,3-Trichloropropane 0.125 0.122 97.6 67.0-129
1,2,3-Trimethylbenzene 0.125 0.107 85.6 74.0-124
1,2,4-Trimethylbenzene 0.125 0.106 84.8 70.0-126
1,3,5-Trimethylbenzene 0.125 0.112 89.6 73.0-127
Vinyl chloride 0.125 0.103 82.4 63.0-134
Xylenes, Total 0.375 0.344 91.7 72.0-127
(S) Toluene-d8 100 75.0-131
(S) 4-Bromofluorobenzene 102 67.0-138
(S) 1,2-Dichloroethane-d4 120 70.0-130
L1244565-14 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1244565-14 07/31/20 20:54 • (MS) R3555474-3 07/31/20 21:32 • (MSD) R3555474-4 07/31/20 21:51 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg % % % % %
Acetone 3.65 U 6.53 9.02 124 171 8 10.0-160 J5 31.9 40
Acrylonitrile 3.65 U 5.47 6.46 104 123 8 10.0-160 16.7 40 Benzene 0.730 U 0.855 0.940 81.2 89.3 8 10.0-149 9.48 37 Bromobenzene 0.730 U 0.886 1.23 84.1 117 8 10.0-156 32.4 38 Bromodichloromethane 0.730 U 0.925 1.07 87.8 102 8 10.0-143 14.5 37 Bromoform 0.730 U 1.33 1.35 127 128 8 10.0-146 1.40 36
Bromomethane 0.730 U 0.521 0.544 49.5 51.6 8 10.0-149 4.34 38 n-Butylbenzene 0.730 1.49 2.39 2.76 86.3 121 8 10.0-160 14.0 40 sec-Butylbenzene 0.730 1.17 1.90 2.21 69.5 98.2 8 10.0-159 14.7 39 tert-Butylbenzene 0.730 0.0903 0.873 1.11 74.3 96.5 8 10.0-156 23.6 39 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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WG1518486 QUALITY CONTROL SUMMARY ONE LAB. NATIONWIDE.

Volatile Organic Compounds (GC/MS) by Method 8260B L1244623-01 L1244565-14 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1244565-14 07/31/20 20:54 • (MS) R3555474-3 07/31/20 21:32 • (MSD) R3555474-4 07/31/20 21:51 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg % % % % %
Carbon tetrachloride 0.730 U 1.02 1.18 97.3 112 8 10.0-145 14.1 37 Chlorobenzene 0.730 U 1.15 1.19 110 113 8 10.0-152 2.71 39 Chlorodibromomethane 0.730 U 1.15 1.23 109 117 8 10.0-146 7.02 37 Chloroethane 0.730 U 0.475 0.555 45.1 52.7 8 10.0-146 15.7 40 Chloroform 0.730 U 1.01 1.20 95.5 114 8 10.0-146 18.0 37 Chloromethane 0.730 U 0.620 0.590 58.9 56.0 8 10.0-159 5.01 37 2-Chlorotoluene 0.730 U 0.825 1.17 78.4 111 8 10.0-159 34.2 38 4-Chlorotoluene 0.730 U 0.838 1.06 79.6 100 8 10.0-155 23.0 39 1,2-Dibromo-3-Chloropropane 0.730 U 1.15 1.27 109 121 8 10.0-151 10.4 39 1,2-Dibromoethane 0.730 U 1.24 1.23 118 117 8 10.0-148 0.935 34 Dibromomethane 0.730 U 1.07 1.15 102 109 8 10.0-147 6.91 35 1,2-Dichlorobenzene 0.730 U 1.02 1.29 97.0 122 8 10.0-155 23.1 37 1,3-Dichlorobenzene 0.730 U 0.894 1.19 84.9 113 8 10.0-153 28.4 38 1,4-Dichlorobenzene 0.730 U 0.972 1.22 92.3 116 8 10.0-151 22.6 38 Dichlorodifluoromethane 0.730 U 0.860 0.783 81.6 74.4 8 10.0-160 9.31 35 1,1-Dichloroethane 0.730 U 0.935 0.998 88.8 94.8 8 10.0-147 6.57 37 1,2-Dichloroethane 0.730 U 1.19 1.32 113 125 8 10.0-148 9.78 35 1,1-Dichloroethene 0.730 U 0.718 0.803 68.2 76.3 8 10.0-155 11.2 37 cis-1,2-Dichloroethene 0.730 U 0.961 1.01 91.2 96.3 8 10.0-149 5.41 37 trans-1,2-Dichloroethene 0.730 U 0.809 0.927 76.8 88.1 8 10.0-150 13.6 37 1,2-Dichloropropane 0.730 U 0.896 1.02 85.1 96.8 8 10.0-148 13.0 37 1,1-Dichloropropene 0.730 U 0.873 1.02 82.9 97.0 8 10.0-153 15.7 35 1,3-Dichloropropane 0.730 U 1.13 1.08 107 103 8 10.0-154 4.17 35 cis-1,3-Dichloropropene 0.730 U 1.01 1.13 95.5 107 8 10.0-151 11.4 37 trans-1,3-Dichloropropene 0.730 U 1.11 1.13 105 107 8 10.0-148 2.06 37 2,2-Dichloropropane 0.730 U 1.01 1.16 95.8 110 8 10.0-138 13.7 36 Di-isopropyl ether 0.730 U 0.949 1.03 90.1 97.9 8 10.0-147 8.30 36 Ethylbenzene 0.730 U 1.09 1.10 103 105 8 10.0-160 1.19 38 Hexachloro-1,3-butadiene 0.730 U 1.33 1.80 126 171 8 10.0-160 J5 30.3 40 Isopropylbenzene 0.730 0.586 1.75 1.67 110 103 8 10.0-155 4.22 38 p-Isopropyltoluene 0.730 U 0.877 1.05 83.3 100 8 10.0-160 18.4 40 2-Butanone (MEK) 3.65 U 6.42 7.63 122 145 8 10.0-160 17.2 40 Methylene Chloride 0.730 U 0.972 1.01 92.3 95.5 8 10.0-141 3.36 37 4-Methyl-2-pentanone (MIBK) 3.65 U 6.27 6.55 119 124 8 10.0-160 4.27 35 Methyl tert-butyl ether 0.730 U 1.08 1.20 103 114 8 11.0-147 9.87 35 Naphthalene 0.730 3.39 3.16 4.05 0.000 63.0 8 10.0-160 J6 24.8 36 n-Propylbenzene 0.730 0.447 1.12 1.28 63.4 79.2 8 10.0-158 13.8 38 Styrene 0.730 U 1.07 1.08 102 103 8 10.0-160 0.802 40
1,1,1,2-Tetrachloroethane 0.730 U 1.18 1.20 112 114 8 10.0-149 1.33 39 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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WG1518486 QUALITY CONTROL SUMMARY ONE LAB. NATIONWIDE.

Volatile Organic Compounds (GC/MS) by Method 8260B L1244623-01 L1244565-14 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1244565-14 07/31/20 20:54 • (MS) R3555474-3 07/31/20 21:32 • (MSD) R3555474-4 07/31/20 21:51 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg % % % % %
1,1,2,2-Tetrachloroethane 0.730 U 2.70 2.83 256 268 8 10.0-160 J5 J5 4.70 35 Tetrachloroethene 0.730 U 1.13 1.31 107 125 8 10.0-156 15.4 39 Toluene 0.730 U 0.978 1.02 92.9 97.1 8 10.0-156 4.47 38 1,1,2-Trichlorotrifluoroethane 0.730 U 0.827 0.913 78.5 86.7 8 10.0-160 9.95 36 1,2,3-Trichlorobenzene 0.730 U 0.707 0.638 67.1 60.5 8 10.0-160 10.3 40 1,2,4-Trichlorobenzene 0.730 U 0.916 1.07 87.0 102 8 10.0-160 15.5 40 1,1,1-Trichloroethane 0.730 U 0.998 1.12 94.8 107 8 10.0-144 11.8 35 1,1,2-Trichloroethane 0.730 U 1.38 1.33 131 126 8 10.0-160 3.52 35 Trichloroethene 0.730 U 1.07 1.25 102 119 8 10.0-156 15.4 38 Trichlorofluoromethane 0.730 U 0.769 0.922 73.0 87.5 8 10.0-160 18.1 40 1,2,3-Trichloropropane 0.730 U 0.972 1.25 92.3 119 8 10.0-156 25.4 35 1,2,3-Trimethylbenzene 0.730 U 0.855 1.07 81.2 101 8 10.0-160 21.9 36 1,2,4-Trimethylbenzene 0.730 U 0.842 1.03 80.0 97.4 8 10.0-160 19.6 36 1,3,5-Trimethylbenzene 0.730 U 0.803 1.01 76.3 95.8 8 10.0-160 22.6 38 Vinyl chloride 0.730 U 0.681 0.700 64.7 66.4 8 10.0-160 2.72 37 Xylenes, Total 2.19 0.0384 3.23 3.32 101 104 8 10.0-160 2.64 38 (S) Toluene-d8 111 106 75.0-131
(S) 4-Bromofluorobenzene 173 154 67.0-138 J1 J1
(S) 1,2-Dichloroethane-d4 112 119 70.0-130
Sample Narrative:

OS: Non-target compounds too high to run at a lower dilution. 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Volatile Organic Compounds (GC/MS) by Method 8260B L1244623-02,03 Method Blank (MB)
(MB) R3555814-3 08/01/20 19:28
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
Acetone U 11.3 25.0
Acrylonitrile U 0.671 5.00
Benzene U 0.0941 0.500
Bromobenzene U 0.118 0.500
Bromodichloromethane U 0.136 0.500
Bromochloromethane U 0.128 0.500
Bromoform U 0.129 0.500
Bromomethane U 0.605 2.50
n-Butylbenzene U 0.157 0.500
sec-Butylbenzene U 0.125 0.500
tert-Butylbenzene U 0.127 0.500
Carbon disulfide 0.0997 J 0.0962 0.500
Carbon tetrachloride U 0.128 0.500
Chlorobenzene U 0.117 0.500
Chlorodibromomethane U 0.140 0.500
Chloroethane U 0.192 2.50
Chloroform U 0.111 0.500
Chloromethane U 0.960 1.25
2-Chlorotoluene U 0.106 0.500
4-Chlorotoluene U 0.114 0.500
1,2-Dibromo-3-Chloropropane U 0.276 2.50
1,2-Dibromoethane U 0.126 0.500
Dibromomethane U 0.122 0.500
1,2-Dichlorobenzene U 0.107 0.500
1,3-Dichlorobenzene U 0.299 0.500
1,4-Dichlorobenzene U 0.120 0.500
trans-1,4-Dichloro-2-butene U 0.467 5.00
Dichlorodifluoromethane U 0.374 2.50
1,1-Dichloroethane U 0.100 0.500
1,2-Dichloroethane U 0.0819 0.500
1,1-Dichloroethene U 0.188 0.500
cis-1,2-Dichloroethene U 0.126 0.500
trans-1,2-Dichloroethene U 0.149 0.500
1,2-Dichloropropane U 0.149 0.500
1,1-Dichloropropene U 0.142 0.500
1,3-Dichloropropane U 0.109 1.00
cis-1,3-Dichloropropene U 0.111 0.500
trans-1,3-Dichloropropene U 0.118 0.500
2,2-Dichloropropane U 0.161 0.500
Di-isopropyl ether U 0.105 0.500
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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WG1518968 QUALITY CONTROL SUMMARY ONE LAB. NATIONWIDE.

Volatile Organic Compounds (GC/MS) by Method 8260B L1244623-02,03 Method Blank (MB)
(MB) R3555814-3 08/01/20 19:28
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
Ethylbenzene U 0.137 0.500
Hexachloro-1,3-butadiene U 0.337 1.00
2-Hexanone U 0.787 5.00
n-Hexane U 0.749 5.00
Iodomethane U 0.554 5.00
Isopropylbenzene U 0.105 0.500
p-Isopropyltoluene U 0.120 0.500
2-Butanone (MEK) U 1.19 5.00
Methylene Chloride U 0.430 2.50
4-Methyl-2-pentanone (MIBK) U 0.478 5.00
Methyl tert-butyl ether U 0.101 0.500
Naphthalene U 0.174 2.50
n-Propylbenzene U 0.0993 0.500
Styrene U 0.118 0.500
1,1,1,2-Tetrachloroethane U 0.147 0.500
1,1,2,2-Tetrachloroethane U 0.133 0.500
Tetrachloroethene U 0.300 0.500
Toluene U 0.278 0.500
1,1,2-Trichlorotrifluoroethane U 0.180 0.500
1,2,3-Trichlorobenzene U 0.164 0.500
1,2,4-Trichlorobenzene U 0.481 1.00
1,1,1-Trichloroethane U 0.149 0.500
1,1,2-Trichloroethane U 0.158 0.500
Trichloroethene U 0.190 0.500
Trichlorofluoromethane U 0.160 2.50
1,2,3-Trichloropropane U 0.237 2.50
1,2,3-Trimethylbenzene U 0.104 0.500
1,2,4-Trimethylbenzene U 0.322 0.500
1,3,5-Trimethylbenzene U 0.104 0.500
Vinyl acetate U 0.692 5.00
Vinyl chloride U 0.234 0.500
Xylenes, Total U 0.174 1.50
(S) Toluene-d8 99.0 80.0-120
(S) 4-Bromofluorobenzene 94.6 77.0-126
(S) 1,2-Dichloroethane-d4 95.6 70.0-130
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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WG1518968 QUALITY CONTROL SUMMARY ONE LAB. NATIONWIDE.

Volatile Organic Compounds (GC/MS) by Method 8260B L1244623-02,03 Laboratory Control Sample (LCS)
(LCS) R3555814-1 08/01/20 18:25
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte ug/l ug/l % %
Acetone 25.0 27.6 110 19.0-160
Acrylonitrile 25.0 26.8 107 55.0-149
Benzene 5.00 5.34 107 70.0-123
Bromobenzene 5.00 5.89 118 73.0-121
Bromodichloromethane 5.00 5.03 101 75.0-120
Bromochloromethane 5.00 5.78 116 76.0-122
Bromoform 5.00 4.18 83.6 68.0-132
Bromomethane 5.00 1.64 32.8 10.0-160
n-Butylbenzene 5.00 3.85 77.0 73.0-125
sec-Butylbenzene 5.00 4.59 91.8 75.0-125
tert-Butylbenzene 5.00 4.68 93.6 76.0-124
Carbon disulfide 5.00 3.60 72.0 61.0-128
Carbon tetrachloride 5.00 4.23 84.6 68.0-126
Chlorobenzene 5.00 5.02 100 80.0-121
Chlorodibromomethane 5.00 4.58 91.6 77.0-125
Chloroethane 5.00 5.20 104 47.0-150
Chloroform 5.00 4.82 96.4 73.0-120
Chloromethane 5.00 5.44 109 41.0-142
2-Chlorotoluene 5.00 5.64 113 76.0-123
4-Chlorotoluene 5.00 4.95 99.0 75.0-122
1,2-Dibromo-3-Chloropropane 5.00 5.10 102 58.0-134
1,2-Dibromoethane 5.00 5.12 102 80.0-122
Dibromomethane 5.00 5.26 105 80.0-120
1,2-Dichlorobenzene 5.00 4.84 96.8 79.0-121
1,3-Dichlorobenzene 5.00 5.13 103 79.0-120
1,4-Dichlorobenzene 5.00 4.43 88.6 79.0-120
trans-1,4-Dichloro-2-butene 5.00 4.70 94.0 33.0-144
Dichlorodifluoromethane 5.00 4.91 98.2 51.0-149
1,1-Dichloroethane 5.00 5.27 105 70.0-126
1,2-Dichloroethane 5.00 5.37 107 70.0-128
1,1-Dichloroethene 5.00 4.13 82.6 71.0-124
cis-1,2-Dichloroethene 5.00 5.51 110 73.0-120
trans-1,2-Dichloroethene 5.00 4.98 99.6 73.0-120
1,2-Dichloropropane 5.00 5.73 115 77.0-125
1,1-Dichloropropene 5.00 5.36 107 74.0-126
1,3-Dichloropropane 5.00 5.56 111 80.0-120
cis-1,3-Dichloropropene 5.00 4.91 98.2 80.0-123
trans-1,3-Dichloropropene 5.00 4.55 91.0 78.0-124
2,2-Dichloropropane 5.00 4.27 85.4 58.0-130
Di-isopropyl ether 5.00 5.70 114 58.0-138
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-PRO-003 L1244623 08/05/20 11:55 23 of 29 ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

RMD Environmental - Walnut Creek, CA 01-PRO-003 L1244623 08/05/20 12:48 23 of 29 DRAFT
5486 of 11211
WG1518968 QUALITY CONTROL SUMMARY ONE LAB. NATIONWIDE.

Volatile Organic Compounds (GC/MS) by Method 8260B L1244623-02,03 Laboratory Control Sample (LCS)
(LCS) R3555814-1 08/01/20 18:25
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte ug/l ug/l % %
Ethylbenzene 5.00 4.49 89.8 79.0-123
Hexachloro-1,3-butadiene 5.00 4.08 81.6 54.0-138
2-Hexanone 25.0 25.8 103 67.0-149
n-Hexane 5.00 4.88 97.6 57.0-133
Iodomethane 25.0 11.0 44.0 33.0-147
Isopropylbenzene 5.00 4.19 83.8 76.0-127
p-Isopropyltoluene 5.00 4.40 88.0 76.0-125
2-Butanone (MEK) 25.0 30.4 122 44.0-160
Methylene Chloride 5.00 5.29 106 67.0-120
4-Methyl-2-pentanone (MIBK) 25.0 26.5 106 68.0-142
Methyl tert-butyl ether 5.00 5.47 109 68.0-125
Naphthalene 5.00 4.66 93.2 54.0-135
n-Propylbenzene 5.00 5.43 109 77.0-124
Styrene 5.00 4.02 80.4 73.0-130
1,1,1,2-Tetrachloroethane 5.00 4.83 96.6 75.0-125
1,1,2,2-Tetrachloroethane 5.00 6.29 126 65.0-130
Tetrachloroethene 5.00 4.67 93.4 72.0-132
Toluene 5.00 4.61 92.2 79.0-120
1,1,2-Trichlorotrifluoroethane 5.00 4.36 87.2 69.0-132
1,2,3-Trichlorobenzene 5.00 4.75 95.0 50.0-138
1,2,4-Trichlorobenzene 5.00 4.51 90.2 57.0-137
1,1,1-Trichloroethane 5.00 4.77 95.4 73.0-124
1,1,2-Trichloroethane 5.00 5.23 105 80.0-120
Trichloroethene 5.00 5.37 107 78.0-124
Trichlorofluoromethane 5.00 4.71 94.2 59.0-147
1,2,3-Trichloropropane 5.00 6.88 138 73.0-130 J4
1,2,3-Trimethylbenzene 5.00 4.49 89.8 77.0-120
1,2,4-Trimethylbenzene 5.00 4.53 90.6 76.0-121
1,3,5-Trimethylbenzene 5.00 5.47 109 76.0-122
Vinyl acetate 25.0 8.15 32.6 11.0-160
Vinyl chloride 5.00 4.89 97.8 67.0-131
Xylenes, Total 15.0 13.0 86.7 79.0-123
(S) Toluene-d8 89.4 80.0-120
(S) 4-Bromofluorobenzene 86.9 77.0-126
(S) 1,2-Dichloroethane-d4 96.1 70.0-130
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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