?

?

?

?

VP-7

VP-2

VP-8

VP-3

V

V

V

V

V

V

V

V

V

V

V

V

V

VP-13

VP-6

Vinyl Chloride

cis-1,2-Dichloroethene

Trichloroethene

Tetrachloroethene

trans-1,2-Dichloroethene

7/21/20168,700

1,400

2,200

310

390

VP-9

Vinyl Chloride

cis-1,2-Dichloroethene

Trichloroethene

Tetrachloroethene

trans-1,2-Dichloroethene

7/21/2016

4.7 U

7.2 U

2,100

400

7.2 U

PCC Structurals, Inc.Large Parts Campus

Portland, OregonSoil Vapor Sampling Results

Figure

2

LAN

DAU

ASS

OCI

ATES

, IN

C. |

G:\

Proj

ects

\883

\002

\040

\044

\Ind

oor A

ir Sa

mpl

ing

Wor

k Pl

an\F

02 S

oil V

apor

Sam

plin

g Re

sults

.dw

g (A

) "Fi

gure

2" 2

/13/

2017

0 100 200

Scale in Feet

Base map source: Aerial Photo Provided by Google 2012, Base Drawing from PCC 1989

LegendPermanent Vapor Sampling Locations.V

Radiello® Passive Indoor Air Sampling Location.Notes

RAI-1aRAI-1b

RAI-1cRAI-8a

RAI-8b

RAI-8c

RAI-11a

RAI-11b

RAI-11c

1. All values in µg/m³2. µg/m³ = micrograms per cubic meter3. Bold = Detected Concentration4. Bold = Detected concentration is greater

than the Risk-Based Concentration protective of Occupational Workers forvapor intrusion into buildings.

5. U= The analyte was analyzed for, was notdetected above the reported sample quantitation limit.

6. Black and white reproduction of this color original may reduce its effectiveness and lead to incorrect interpretation.

V

Permanent Vapor SamplingLocation not Sampled in 2016.

VP-12

7/21/2016

Tetrachloroethene 530

Trichloroethene

cis-1,2-Dichloroethene 1,900

trans-1,2-Dichloroethene 1,400

Vinyl Chloride 8,400

VP-6

7/21/2016

Tetrachloroethene

Trichloroethene

cis-1,2-Dichloroethene

trans-1,2-Dichloroethene

Vinyl Chloride

310

2,200

1,400

390

8,700

VP-11

7/21/2016

Tetrachloroethene

Trichloroethene

cis-1,2-Dichloroethene

trans-1,2-Dichloroethene

Vinyl Chloride

24,000

4,100

10,000

370

2,300

RAI-11bVP-5

7/21/2016

Tetrachloroethene

Trichloroethene

cis-1,2-Dichloroethene

trans-1,2-Dichloroethene

Vinyl Chloride

19,000

4,300

240

60 U

38 U

RAI-11bVP-4

7/21/2016

Tetrachloroethene

Trichloroethene

cis-1,2-Dichloroethene

trans-1,2-Dichloroethene

Vinyl Chloride

15

5.9 U

4.4 U

4.4 U

RAI-11bVP-10

7/21/2016

Tetrachloroethene

Trichloroethene

cis-1,2-Dichloroethene

trans-1,2-Dichloroethene

Vinyl Chloride

420

1,500

RAI-11bVP-8

7/21/2016

Tetrachloroethene

Trichloroethene

cis-1,2-Dichloroethene

trans-1,2-Dichloroethene

Vinyl Chloride

84,000

63,000

410

460

RAI-11bVP-9

7/21/2016

Tetrachloroethene

Trichloroethene

cis-1,2-Dichloroethene

trans-1,2-Dichloroethene

Vinyl Chloride

400

2,100

7.2 U

7.2 U

4.7 U

VP-1

7/21/2016

Tetrachloroethene

Trichloroethene

cis-1,2-Dichloroethene

trans-1,2-Dichloroethene

Vinyl Chloride

240,000

7,600,000

70,000

4,100

1,700 U

2.8 U

14

4.6 U

3.0 U

77,000

1/26/2017

26,000

14,000

460

4,500

1/26/2017

80

340

10,000

8,700

1/26/2017

470,000

11,000,000

72,000

4,600

2,700 U

2,600

2,900

6,500