monthly report 0501-0531 - Pacific Gas and Electric Company · 2017. 3. 24. · 334 19th Street •...

334 19th Street • Oakland, CA 94612 • (510) 267-2726 • FAX: (415) 962-0736 Oakland • San Francisco • Los Angeles

SCA Environmental, Inc.

June 30, 2010 Joe Morgan URS Corporation 1333 Broadway, Suite 800 Oakland, CA 94612 RE: Month End Summary of Perimeter Zone Monitoring Results (May 1 - 31, 2010)

PG&E Hunters Point Power Plant 1000 Evans Avenue San Francisco, California SCA Project No.: B9780

Dear Mr. Morgan: SCA Environmental, Inc. (SCA) performed air monitoring at perimeter fence line locations during site management work at the above-referenced site. Four (4) fixed air monitoring stations (AMS) have been established on the property. The testing equipment, analytical methods, and air monitoring goals are discussed in the Air Monitoring Plan presented in the Asbestos Dust Mitigation Plan (ADMP, RGA, 2009). Locations of the AMS are identified on Figure 1. Attached are the following Tables and Charts summarizing the data for April 1 – 30, 2010:

Table Chart Results For 1 1 Asbestos (TEM CARB-modified AHERA Method) 2 2a

2b 2c

Total Chromium (ICP/MS) Lead (ICP/MS) Nickel (ICP/MS)

3 3a 3b

Dust – Total (gravimetry) Dust Respirable (photometer/cyclone)

4 4 not plotted*

Semi-Volatile Organic Compounds (SVOC Gasoline & Diesel) - TO17 sorbent tubes Volatile Organic Compounds (VOC) - TO17 sorbent tubes

* not plotted due to the low levels (generally below the detection limits) of the VOC tested Note that VOC/SVOC sampling has now been included in the suite of analytes in anticipation of remediation activities starting this summer.

Month End Summary of Perimeter Zone Monitoring Results (May 1 - 31, 2010) PG&E Hunters Point Power Plant 1000 Evans Avenue, San Francisco, California SCA Project No.: B9780 page 2

Note also that:

1. All TEM results for airborne asbestos stayed below 0.016 s/cc, and the only result that exceeded one half of that level occurred on May 27, 2010, when the result was 0.013 s/cc at Air Monitoring Station 2 (AMS2). AMS2 is located within 20-ft to the intersection of Evans Avenue and Jennings Street. Based on observations of off-site construction activities in the vicinity on May 27 (trenching and installation of piping along Jennings Street), we have strong reasons to believe that this result was associated with such off-site activities, rather than from the low-level maintenance activities on-site.

2. Average daily photometer readings of respirable dust were always well below 0.1 mg/m3,

less than 20% of the Project Monitoring Goal of 0.5 mg/m3. On four days (5/17, 5/25, and at two stations on 5/27/2010), short time maximum readings exceeded 0.5 mg/m3, but the average levels for all sampling stations remained below 0.1 mg/m3, less than 20% of the Project Monitoring Goal. The causes of these spikes were not known, and might be attributed to random wind events.

The laboratory reports have been submitted electronically on an ongoing basis, and are not attached herein. Sincerely, SCA Environmental, Inc.

Chuck Siu, PE, CIH, CAC Project Manager c: 510-333-0572 [email protected] Attachments:

Table 1 Results for Asbestos (CARB-modified AHERA TEM) Table 2 Results for Metals (Chromium, Lead and Nickel) Table 3 Results for Dusts (Total and Respirable) Table 4 Results for VOCs/SVOCs Chart 1 Asbestos (CARB-modified AHERA TEM) Chart 2a Total Chromium (ICP/MS) Chart 2b Lead (ICP/MS) Chart 2c Nickel (ICP/MS) Chart 3a Dust – Total (gravimetry) Chart 3b Dust Respirable (photometer/cyclone) Chart 4 Semi-Volatile Organic Compounds (SVOC Gasoline & Diesel) Figure 1 Site Plan

Collection Date: Station # Sample ID Start-End TimeDuration

(Min)Volume (liter) Results Wind Direction (Compass) & Speed

5/03/10 Mon AMS1 AMS1-0503-T 07:00 – 15:00 480 4704 <0.0010 N, NW 10 MPH5/03/10 Mon AMS2 AMS2-0503-T 07:00 – 15:08 488 4782 <0.0010 NE, N 13 MPH5/03/10 Mon AMS3 AMS3-0503-T 07:00 – 15:16 496 4861 <0.0010 SW, S 17 MPH5/03/10 Mon AMS4 AMS4-0503-T 07:00 – 15:25 505 4949 <0.0010 NW, N 19 MPH

5/04/10 Tue AMS1 AMS1-0504-T 07:00 – 15:01 481 4714 <0.0009 W, NW 6 MPH5/04/10 Tue AMS2 AMS2-0504-T 07:00 – 15:09 489 4792 <0.0009 NE, N 9 MPH5/04/10 Tue AMS3 AMS3-0504-T 07:00 – 15:17 497 4871 <0.0010 S, SE 12 MPH5/04/10 Tue AMS4 AMS4-0504-T 07:00 – 15:24 504 4939 <0.0010 NW, N 14 MPH

5/05/10 Wed AMS1 AMS1-0505-T 07:00 – 15:04 484 4259 <0.0010 NW, N 6 MPH5/05/10 Wed AMS2 AMS2-0505-T 07:00 – 15:12 492 4330 <0.0010 N, NE 6 MPH5/05/10 Wed AMS3 AMS3-0505-T 07:00 – 15:20 500 4400 <0.0010 SW, S 8 MPH5/05/10 Wed AMS4 AMS4-0505-T 07:00 – 15:27 507 4462 <0.0010 N, NW 11 MPH

5/06/10 Thu AMS1 AMS1-0506-T 07:00 – 15:06 486 4277 <0.0009 NW, N 5 MPH5/06/10 Thu AMS2 AMS2-0506-T 07:00 – 15:12 492 4330 0.0036 NE, N 6 MPH5/06/10 Thu AMS3 AMS3-0506-T 07:00 – 15:20 500 4400 <0.0009 SW, S 10 MPH5/06/10 Thu AMS4 AMS4-0506-T 07:00 – 15:27 507 4462 <0.0009 N, NW 12 MPH

5/07/10 Fri AMS1 AMS1-0507-T 07:00 – 15:05 485 4268 <0.0009 N, NW 7 MPH5/07/10 Fri AMS2 AMS2-0507-T 07:00 – 15:11 491 4321 <0.0010 NE, N 9 MPH5/07/10 Fri AMS3 AMS3-0507-T 07:00 – 15:19 499 4391 <0.0010 SW, S 13 MPH5/07/10 Fri AMS4 AMS4-0507-T 07:00 – 15:25 505 4444 <0.0010 NW, N 16 MPH

5/10/10 Mon AMS1 AMS1-0510-T 07:00 – 15:04 484 4308 <0.0010 E, NE 7 MPH5/10/10 Mon AMS2 AMS2-0510-T 07:00 – 15:11 491 4370 <0.0010 NW, N 7 MPH5/10/10 Mon AMS3 AMS3-0510-T 07:00 – 15:25 505 4495 <0.0010 S, SW 10 MPH5/10/10 Mon AMS4 AMS4-0510-T 07:00 – 15:27 507 4512 0.0019 NW, N 11 MPH

5/11/10 Tue AMS1 AMS1-0511-T 07:00 – 15:04 484 4308 <0.0010 NW, N 5 MPH5/11/10 Tue AMS2 AMS2-0511-T 07:00 – 15:11 491 4370 <0.0010 N, NW 5 MPH5/11/10 Tue AMS3 AMS3-0511-T 07:00 – 15:19 499 4441 <0.0010 S, SW 7 MPH5/11/10 Tue AMS4 AMS4-0511-T 07:00 – 15:26 506 4503 <0.0010 NE, N 9 MPH

5/12/10 Wed AMS1 AMS1-0512-T 07:00 – 15:05 485 4317 <0.0010 W, NW 9 MPH5/12/10 Wed AMS2 AMS2-0512-T 07:00 – 15:11 491 4370 <0.0010 NW, N 9 MPH5/12/10 Wed AMS3 AMS3-0512-T 07:00 – 15:19 499 4441 <0.0010 SE, S 13 MPH5/12/10 Wed AMS4 AMS4-0512-T 07:00 – 15:25 505 4495 <0.0010 NW, N 15 MPH

5/13/10 Thu AMS1 AMS1-0513-T 07:00 – 15:11 491 4370 <0.0010 N, NW 8 MPH5/13/10 Thu AMS2 AMS2-0513-T 07:00 – 15:18 498 4432 <0.0010 NE, N 8 MPH5/13/10 Thu AMS3 AMS3-0513-T 07:00 – 15:25 505 4495 <0.0010 S, SW 14 MPH5/13/10 Thu AMS4 AMS4-0513-T 07:00 – 15:30 510 4539 <0.0010 N, NW 17 MPH

5/14/10 Fri AMS1 AMS1-0514-T 07:00 – 15:03 483 4299 0.001 N, NW 9 MPH5/14/10 Fri AMS2 AMS2-0514-T 07:00 – 15:09 489 4352 <0.0010 N, NE 7 MPH5/14/10 Fri AMS3 AMS3-0514-T 07:00 – 15:17 497 4423 <0.0010 SW, S 10 MPH5/14/10 Fri AMS4 AMS4-0514-T 07:00 – 15:24 504 4486 <0.0010 NW, N 14 MPH

5/17/10 Mon AMS1 AMS1-0517-T 07:00 – 15:04 484 4308 <0.0010 S, SW 3 MPH5/17/10 Mon AMS2 AMS2-0517-T 07:00 – 15:10 490 4361 0.004 W, SW 2 MPH5/17/10 Mon AMS3 AMS3-0517-T 07:00 – 15:19 499 4441 <0.0010 NE, E 4 MPH5/17/10 Mon AMS4 AMS4-0517-T 07:00 – 15:25 505 4495 <0.0010 S, SW 4 MPH

5/18/10 Tue AMS1 AMS1-0518-T 07:00 – 15:02 482 4290 <0.0010 W, NW 6 MPH5/18/10 Tue AMS2 AMS2-0518-T 07:00 – 15:09 489 4352 0.003 NE, E 6 MPH5/18/10 Tue AMS3 AMS3-0518-T 07:00 – 15:18 498 4432 <0.0010 SW, S 10 MPH5/18/10 Tue AMS4 AMS4-0518-T 07:00 – 15:24 504 4486 <0.0010 N, NW 11 MPH

5/19/10 Wed AMS1 AMS1-0519-T 07:00 – 15:07 487 4334 <0.0010 S, SE 3 MPH5/19/10 Wed AMS2 AMS2-0519-T 07:00 – 15:14 494 4397 <0.0010 W, NW 2 MPH5/19/10 Wed AMS3 AMS3-0519-T 07:00 – 15:22 502 4468 <0.0010 N, NE 5 MPH5/19/10 Wed AMS4 AMS4-0519-T 07:00 – 15:28 508 4521 <0.0010 S, SE 5 MPH

5/20/10 Thu AMS1 AMS1-0520-T 07:00 – 15:09 489 4352 <0.0010 W, NW 5 MPH5/20/10 Thu AMS2 AMS2-0520-T 07:00 – 15:15 495 4406 0.001 NW, N 8 MPH5/20/10 Thu AMS3 AMS3-0520-T 07:00 – 15:21 501 4459 <0.0010 S, SW 11 MPH5/20/10 Thu AMS4 AMS4-0520-T 07:00 – 15:30 510 4539 <0.0010 NW, N 13 MPH

5/21/10 Fri AMS1 AMS1-0521-T 07:00 – 15:02 482 4290 <0.0009 NW, N 6 MPH5/21/10 Fri AMS2 AMS2-0521-T 07:00 – 15:09 489 4352 <0.0010 NE, E 7 MPH5/21/10 Fri AMS3 AMS3-0521-T 07:00 – 15:15 495 4406 <0.0010 SW, S 9 MPH5/21/10 Fri AMS4 AMS4-0521-T 07:00 – 15:22 502 4468 <0.0010 N, NW 12 MPH

5/24/10 Mon AMS1 AMS1-0524-T 07:00 – 15:03 483 4299 <0.0010 S, SE 5 MPH5/24/10 Mon AMS2 AMS2-0524-T 07:00 – 15:09 489 4352 <0.0010 S, SE 3 MPH5/24/10 Mon AMS3 AMS3-0524-T 07:00 – 15:16 496 4414 <0.0010 NW, N 4 MPH5/24/10 Mon AMS4 AMS4-0524-T 07:00 – 15:21 501 4459 <0.0010 S, SE 6 MPH

5/25/10 Tue AMS1 AMS1-0525-T 07:00 – 15:00 480 4272 <0.0009 SW, W 5 MPH5/25/10 Tue AMS2 AMS2-0525-T 07:00 – 15:06 486 4325 <0.0009 SW, W 1 MPH5/25/10 Tue AMS3 AMS3-0525-T 07:00 – 15:14 494 4397 <0.0009 SE, E 4 MPH5/25/10 Tue AMS4 AMS4-0525-T 07:00 – 15:20 500 4450 <0.0009 NW, N 6 MPH

5/26/10 Wed AMS1 AMS1-0526-T 07:00 – 15:01 481 4281 <0.0010 NW, W 6 MPH5/26/10 Wed AMS2 AMS2-0526-T 07:00 – 15:11 491 4370 <0.0010 NE, E 5 MPH5/26/10 Wed AMS3 AMS3-0526-T 07:00 – 15:15 495 4406 <0.0010 S, SW 7 MPH5/26/10 Wed AMS4 AMS4-0526-T 07:00 – 15:21 501 4459 <0.0010 NE, N 9 MPH

5/27/10 Thu AMS1 AMS1-0527-T 07:00 – 15:00 480 4272 0.0036 NW, W 7 MPH5/27/10 Thu AMS2 AMS2-0527-T 07:00 – 15:06 486 4325 0.013 NE, N 4 MPH5/27/10 Thu AMS3 AMS3-0527-T 07:00 – 15:15 495 4406 <0.0010 E, SE 6 MPH5/27/10 Thu AMS4 AMS4-0527-T 07:00 – 15:22 502 4468 <0.0010 W, NW 9 MPH

5/28/10 Fri AMS1 AMS1-0528-T 07:00 – 15:02 482 4290 <0.0009 NW, N 4 MPH5/28/10 Fri AMS2 AMS2-0528-T 07:00 – 15:07 487 4334 <0.0009 NE, N 6 MPH5/28/10 Fri AMS3 AMS3-0528-T 07:00 – 15:15 495 4406 <0.0009 S, SW 7 MPH5/28/10 Fri AMS4 AMS4-0528-T 07:00 – 15:22 502 4468 <0.0009 N, NE 8 MPH

Notes: (1) Sampling flow rates are below 10 liters per minute, per sampling method.(2) Lab analysis performed by Asbestos TEM Laboratory, Berkeley, CA. (NVLAP Accreditation #: 101891-0)(3) Samples collected on 25-mm, 0.45-micrometer Mixed Cellulose Ester Filters in conductive cassettes.(4) “<” result = below detection limit for the sample.(5) s/cc = structures/cubic centimeter; Min = minutes; AMS = Air Monitoring Station

Table 1

Perimeter Zone Monitoring – Airborne Asbestos (s/cc) by TEM (CARB-modified AHERA)

PG&E Former Hunters Point Power Plant - Site Management Activities

Page 1 of 1 For: 5/1 - 5/31/2010


(Min) Chromium Lead Nickel Wind Direction (Compass) & Speed

5/03/10 Mon AMS1 AMS1-0503-M 7:00–15:00 480 <0.00013 <0.00013 <0.00013 N, NW 10 MPH5/03/10 Mon AMS2 AMS2-0503-M 7:00-15:08 488 <0.00012 <0.00012 <0.00012 NE, N 13 MPH5/03/10 Mon AMS3 AMS3-0503-M 7:00-15:16 496 <0.00012 <0.00012 <0.00012 SW, S 17 MPH5/03/10 Mon AMS4 AMS4-0503-M 7:00-15:25 505 <0.00012 <0.00012 <0.00012 NW, N 19 MPH

5/04/10 Tue AMS1 AMS1-0504-M 07:00 – 15:01 481 <0.00013 <0.00013 <0.00013 W, NW 6 MPH5/04/10 Tue AMS2 AMS2-0504-M 07:00 – 15:09 489 <0.00012 <0.00012 <0.00012 NE, N 9 MPH5/04/10 Tue AMS3 AMS3-0504-M 07:00 – 15:17 497 <0.00012 <0.00012 <0.00012 S, SE 12 MPH5/04/10 Tue AMS4 AMS4-0504-M 07:00 – 15:24 504 <0.00012 <0.00012 <0.00012 NW, N 14 MPH

5/05/10 Wed AMS1 AMS1-0505-M 07:00 – 15:04 484 <0.00012 <0.00012 <0.00012 NW, N 6 MPH5/05/10 Wed AMS2 AMS2-0505-M 07:00 – 15:12 492 <0.00012 <0.00012 <0.00012 N, NE 6 MPH5/05/10 Wed AMS3 AMS3-0505-M 07:00 – 15:20 500 <0.00012 <0.00012 <0.00012 SW, S 8 MPH5/05/10 Wed AMS4 AMS4-0505-M 07:00 – 15:27 507 <0.00012 <0.00012 <0.00012 N, NW 11 MPH

5/06/10 Thu AMS1 AMS1-0506-M 07:00 – 15:06 486 <0.00012 <0.00012 <0.00012 NW, N 5 MPH5/06/10 Thu AMS2 AMS2-0506-M 07:00 – 15:12 492 <0.00012 <0.00012 <0.00012 NE, N 6 MPH5/06/10 Thu AMS3 AMS3-0506-M 07:00 – 15:20 500 <0.00012 <0.00012 <0.00012 SW, S 10 MPH5/06/10 Thu AMS4 AMS4-0506-M 07:00 – 15:27 507 <0.00012 <0.00012 <0.00012 N, NW 12 MPH

5/07/10 Fri AMS1 AMS1-0507-M 07:00 – 15:05 485 <0.00012 <0.00012 <0.00012 N, NW 7 MPH5/07/10 Fri AMS2 AMS2-0507-M 07:00 – 15:11 491 <0.00012 <0.00012 <0.00012 NE, N 9 MPH5/07/10 Fri AMS3 AMS3-0507-M 07:00 – 15:19 499 <0.00012 <0.00012 <0.00012 SW, S 13 MPH5/07/10 Fri AMS4 AMS4-0507-M 07:00 – 15:25 505 <0.00012 <0.00012 <0.00012 NW, N 16 MPH

5/10/10 Mon AMS1 AMS1-0510-M 07:00 – 15:04 484 <0.00012 <0.00012 <0.00012 E, NE 7 MPH5/10/10 Mon AMS2 AMS2-0510-M 07:00 – 15:11 491 <0.00012 <0.00012 <0.00012 NW, N 7 MPH5/10/10 Mon AMS3 AMS3-0510-M 07:00 – 15:25 505 <0.00012 <0.00012 <0.00012 S, SW 10 MPH5/10/10 Mon AMS4 AMS4-0510-M 07:00 – 15:27 507 <0.00012 <0.00012 <0.00012 NW, N 11 MPH

5/11/10 Tue AMS1 AMS1-0511-M 07:00 – 15:04 484 <0.00012 <0.00012 <0.00012 NW, N 5 MPH5/11/10 Tue AMS2 AMS2-0511-M 07:00 – 15:11 491 <0.00012 <0.00012 <0.00012 N, NW 5 MPH5/11/10 Tue AMS3 AMS3-0511-M 07:00 – 15:19 499 <0.00012 <0.00012 <0.00012 S, SW 7 MPH5/11/10 Tue AMS4 AMS4-0511-M 07:00 – 15:26 506 <0.00012 <0.00012 <0.00012 NE, N 9 MPH

5/12/10 Wed AMS1 AMS1-0512-M 07:00 – 15:05 485 <0.00012 <0.00012 <0.00012 W, NW 9 MPH5/12/10 Wed AMS2 AMS2-0512-M 07:00 – 15:11 491 <0.00012 <0.00012 <0.00012 NW, N 9 MPH5/12/10 Wed AMS3 AMS3-0512-M 07:00 – 15:19 499 <0.00012 <0.00012 <0.00012 SE, S 13 MPH5/12/10 Wed AMS4 AMS4-0512-M 07:00 – 15:25 505 <0.00012 <0.00012 <0.00012 NW, N 15 MPH

5/13/10 Thu AMS1 AMS1-0513-M 07:00 – 15:11 491 <0.00012 <0.00012 <0.00012 N, NW 8 MPH5/13/10 Thu AMS2 AMS2-0513-M 07:00 – 15:18 498 <0.00012 <0.00012 <0.00012 NE, N 8 MPH5/13/10 Thu AMS3 AMS3-0513-M 07:00 – 15:25 505 <0.00012 <0.00012 <0.00012 S, SW 14 MPH5/13/10 Thu AMS4 AMS4-0513-M 07:00 – 15:30 510 <0.00012 <0.00012 <0.00012 N, NW 17 MPH

5/14/10 Fri AMS1 AMS1-0514-M 07:00 – 15:03 483 <0.00012 <0.00012 <0.00012 N, NW 9 MPH5/14/10 Fri AMS2 AMS2-0514-M 07:00 – 15:09 489 <0.00012 <0.00012 <0.00012 N, NE 7 MPH5/14/10 Fri AMS3 AMS3-0514-M 07:00 – 15:17 497 <0.00012 <0.00012 <0.00012 SW, S 10 MPH5/14/10 Fri AMS4 AMS4-0514-M 07:00 – 15:24 504 <0.00012 <0.00012 <0.00012 NW, N 14 MPH

5/17/10 Mon AMS1 AMS1-0517-M 07:00 – 15:04 484 <0.00012 <0.00012 <0.00012 S, SW 3 MPH5/17/10 Mon AMS2 AMS2-0517-M 07:00 – 15:10 490 <0.00012 <0.00012 <0.00012 W, SW 2 MPH5/17/10 Mon AMS3 AMS3-0517-M 07:00 – 15:19 499 <0.00012 <0.00012 <0.00012 NE, E 4 MPH5/17/10 Mon AMS4 AMS4-0517-M 07:00 – 15:25 505 <0.00012 <0.00012 <0.00012 S, SW 4 MPH

5/18/10 Tue AMS1 AMS1-0518-M 07:00 – 15:02 482 <0.00012 <0.00012 <0.00012 W, NW 6 MPH5/18/10 Tue AMS2 AMS2-0518-M 07:00 – 15:09 489 <0.00012 <0.00012 <0.00012 NE, E 6 MPH5/18/10 Tue AMS3 AMS3-0518-M 07:00 – 15:18 498 <0.00012 <0.00012 <0.00012 SW, S 10 MPH5/18/10 Tue AMS4 AMS4-0518-M 07:00 – 15:24 504 <0.00012 <0.00012 <0.00012 N, NW 11 MPH

5/19/10 Wed AMS1 AMS1-0519-M 07:00 – 15:07 487 <0.00012 <0.00012 <0.00012 S, SE 3 MPH5/19/10 Wed AMS2 AMS2-0519-M 07:00 – 15:14 494 <0.00012 <0.00012 <0.00012 W, NW 2 MPH5/19/10 Wed AMS3 AMS3-0519-M 07:00 – 15:22 502 <0.00012 <0.00012 <0.00012 N, NE 5 MPH5/19/10 Wed AMS4 AMS4-0519-M 07:00 – 15:28 508 <0.00012 <0.00012 <0.00012 S, SE 5 MPH

5/20/10 Thu AMS1 AMS1-0520-M 07:00 – 15:09 489 <0.00012 <0.00012 <0.00012 W, NW 5 MPH5/20/10 Thu AMS2 AMS2-0520-M 07:00 – 15:15 495 <0.00012 <0.00012 <0.00012 NW, N 8 MPH5/20/10 Thu AMS3 AMS3-0520-M 07:00 – 15:21 501 <0.00012 <0.00012 <0.00012 S, SW 11 MPH5/20/10 Thu AMS4 AMS4-0520-M 07:00 – 15:30 510 <0.00012 <0.00012 <0.00012 NW, N 13 MPH

5/21/10 Fri AMS1 AMS1-0521-M 07:00 – 15:02 482 <0.00012 <0.00012 <0.00012 NW, N 6 MPH5/21/10 Fri AMS2 AMS2-0521-M 07:00 – 15:09 489 <0.00012 <0.00012 <0.00012 NE, E 7 MPH5/21/10 Fri AMS3 AMS3-0521-M 07:00 – 15:15 495 <0.00012 <0.00012 <0.00012 SW, S 9 MPH5/21/10 Fri AMS4 AMS4-0521-M 07:00 – 15:22 502 <0.00012 <0.00012 <0.00012 N, NW 12 MPH

5/24/10 Mon AMS1 AMS1-0524-M 07:00 – 15:03 483 <0.00012 <0.00012 <0.00012 S, SE 5 MPH5/24/10 Mon AMS2 AMS2-0524-M 07:00 – 15:09 489 <0.00012 <0.00012 <0.00012 S, SE 3 MPH5/24/10 Mon AMS3 AMS3-0524-M 07:00 – 15:16 496 <0.00012 <0.00012 <0.00012 NW, N 4 MPH5/24/10 Mon AMS4 AMS4-0524-M 07:00 – 15:21 501 <0.00012 <0.00012 <0.00012 S, SE 6 MPH

5/25/10 Tue AMS1 AMS1-0525-M 07:00 – 15:00 480 <0.00012 <0.00012 <0.00012 SW, W 5 MPH5/25/10 Tue AMS2 AMS2-0525-M 07:00 – 15:06 486 <0.00012 <0.00012 <0.00012 SW, W 1 MPH5/25/10 Tue AMS3 AMS3-0525-M 07:00 – 15:14 494 <0.00012 <0.00012 <0.00012 SE, E 4 MPH5/25/10 Tue AMS4 AMS4-0525-M 07:00 – 15:20 500 <0.00012 <0.00012 <0.00012 NW, N 6 MPH

5/26/10 Wed AMS1 AMS1-0526-M 07:00 – 15:01 481 <0.00012 <0.00012 <0.00012 NW, W 6 MPH5/26/10 Wed AMS2 AMS2-0526-M 07:00 – 15:11 491 <0.00012 <0.00012 <0.00012 NE, E 5 MPH5/26/10 Wed AMS3 AMS3-0526-M 07:00 – 15:15 495 <0.00012 <0.00012 <0.00012 S, SW 7 MPH5/26/10 Wed AMS4 AMS4-0526-M 07:00 – 15:21 501 <0.00012 <0.00012 <0.00012 NE, N 9 MPH

5/27/10 Thu AMS1 AMS1-0527-M 07:00 – 15:00 480 <0.00012 <0.00012 <0.00012 NW, W 7 MPH5/27/10 Thu AMS2 AMS2-0527-M 07:00 – 15:06 486 <0.00012 <0.00012 <0.00012 NE, N 4 MPH5/27/10 Thu AMS3 AMS3-0527-M 07:00 – 15:15 495 <0.00012 <0.00012 <0.00012 E, SE 6 MPH5/27/10 Thu AMS4 AMS4-0527-M 07:00 – 15:22 502 <0.00012 <0.00012 <0.00012 W, NW 9 MPH

5/28/10 Fri AMS1 AMS1-0528-M 07:00 – 15:02 482 <0.00012 <0.00012 <0.00012 NW, N 4 MPH5/28/10 Fri AMS2 AMS2-0528-M 07:00 – 15:07 487 <0.00012 <0.00012 <0.00012 NE, N 6 MPH5/28/10 Fri AMS3 AMS3-0528-M 07:00 – 15:15 495 <0.00012 <0.00012 <0.00012 S, SW 7 MPH5/28/10 Fri AMS4 AMS4-0528-M 07:00 – 15:22 502 <0.00012 <0.00012 <0.00012 N, NE 8 MPH

Notes:

(5) “<” result = below detection limit for the sample.(6) mg/m3 = milligram/cubic meter; Min = minutes; AMS = Air Monitoring Station

(3) Samples collected on 37-mm 0.8-micrometer Mixed Cellulose Ester Filters(4) Samples analyzed in accordance with EPA SW3050B/6020A (ICP-MS).

(1) Sampling flow rates are below 10 liters per minute.

Table 2

Perimeter Zone Monitoring – Metals (Cr, Pb, Ni) (mg/m3)


(2) Lab analysis performed by McCampbell Analytical in Pittsburg, CA. (Calif DHS ELAP accreditation #:1644 )

Page 1 of 1 For: 5/1 - 5/31/2010

Collection Date: Station # Sample ID Start-End Time

Duration (Min) Results

Start- End Time

Duration (Min) Minimum Maximum Average Wind Direction (Compass) & Speed

5/03/10 Mon AMS1 AMS1-0503-M 7:00–15:00 480 <0.03 7:10-15:02 472 0.002 0.027 0.012 N, NW 10 MPH5/03/10 Mon AMS2 AMS2-0503-M 7:00-15:08 488 <0.02 7:16-15:09 473 <0.001 0.035 0.010 NE, N 13 MPH5/03/10 Mon AMS3 AMS3-0503-M 7:00-15:16 496 <0.02 7:21-15:18 477 0.001 0.017 0.009 SW, S 17 MPH5/03/10 Mon AMS4 AMS4-0503-M 7:00-15:25 505 <0.02 7:24-15:24 480 0.012 0.032 0.022 NW, N 19 MPH

5/04/10 Tue AMS1 AMS1-0504-M 07:00 – 15:01 481 0.03 7:09-15:01 472 0.002 0.519 0.015 W, NW 6 MPH5/04/10 Tue AMS2 AMS2-0504-M 07:00 – 15:09 489 <0.02 7:16-15:09 473 0.011 0.060 0.022 NE, N 9 MPH5/04/10 Tue AMS3 AMS3-0504-M 07:00 – 15:17 497 <0.02 7:22-15:17 475 0.009 0.056 0.016 S, SE 12 MPH5/04/10 Tue AMS4 AMS4-0504-M 07:00 – 15:24 504 <0.02 7:26-15:24 478 0.009 0.105 0.016 NW, N 14 MPH

5/05/10 Wed AMS1 AMS1-0505-M 07:00 – 15:04 484 <0.02 7:03-15:04 481 0.011 0.022 0.013 NW, N 6 MPH5/05/10 Wed AMS2 AMS2-0505-M 07:00 – 15:12 492 <0.02 7:11-15:12 481 0.012 0.054 0.025 N, NE 6 MPH5/05/10 Wed AMS3 AMS3-0505-M 07:00 – 15:20 500 <0.02 7:15-15:20 485 0.010 0.023 0.012 SW, S 8 MPH5/05/10 Wed AMS4 AMS4-0505-M 07:00 – 15:27 507 <0.02 7:20-15:27 487 0.006 0.018 0.010 N, NW 11 MPH

5/06/10 Thu AMS1 AMS1-0506-M 07:00 – 15:06 486 0.030 7:00-15:06 486 0.004 0.022 0.009 NW, N 5 MPH5/06/10 Thu AMS2 AMS2-0506-M 07:00 – 15:12 492 <0.02 7:06-15:12 486 0.007 0.031 0.017 NE, N 6 MPH5/06/10 Thu AMS3 AMS3-0506-M 07:00 – 15:20 500 <0.02 7:12-15:20 488 0.002 0.020 0.005 SW, S 10 MPH5/06/10 Thu AMS4 AMS4-0506-M 07:00 – 15:27 507 <0.02 7:16-15:27 491 <0.001 0.014 0.005 N, NW 12 MPH

5/07/10 Fri AMS1 AMS1-0507-M 07:00 – 15:05 485 <0.02 7:02-15:06 484 0.010 0.020 0.013 N, NW 7 MPH5/07/10 Fri AMS2 AMS2-0507-M 07:00 – 15:11 491 <0.02 7:10-15:12 482 0.011 0.027 0.017 NE, N 9 MPH5/07/10 Fri AMS3 AMS3-0507-M 07:00 – 15:19 499 <0.02 7:14-15:20 486 0.010 0.026 0.012 SW, S 13 MPH5/07/10 Fri AMS4 AMS4-0507-M 07:00 – 15:25 505 <0.02 7:18-15:27 489 0.007 0.013 0.010 NW, N 16 MPH

5/10/10 Mon AMS1 AMS1-0510-M 07:00 – 15:04 484 <0.02 7:05-15:04 479 0.001 0.008 0.004 E, NE 7 MPH5/10/10 Mon AMS2 AMS2-0510-M 07:00 – 15:11 491 <0.02 7:16-15:11 475 0.003 0.023 0.009 NW, N 7 MPH5/10/10 Mon AMS3 AMS3-0510-M 07:00 – 15:25 505 <0.02 7:22-15:25 483 <0.001 0.005 0.002 S, SW 10 MPH5/10/10 Mon AMS4 AMS4-0510-M 07:00 – 15:27 507 <0.02 7:26-15:27 481 <0.001 0.042 0.001 NW, N 11 MPH

5/11/10 Tue AMS1 AMS1-0511-M 07:00 – 15:04 484 <0.02 7:00-15:04 484 0.002 0.035 0.006 NW, N 5 MPH5/11/10 Tue AMS2 AMS2-0511-M 07:00 – 15:11 491 <0.02 7:00-15:11 491 0.004 0.028 0.013 N, NW 5 MPH5/11/10 Tue AMS3 AMS3-0511-M 07:00 – 15:19 499 <0.02 7:00-15:19 499 <0.001 0.011 0.001 S, SW 7 MPH5/11/10 Tue AMS4 AMS4-0511-M 07:00 – 15:26 506 <0.02 7:00-15:26 506 <0.001 0.006 0.002 NE, N 9 MPH

5/12/10 Wed AMS1 AMS1-0512-M 07:00 – 15:05 485 0.040 7:15-15:05 470 0.017 0.030 0.021 W, NW 9 MPH5/12/10 Wed AMS2 AMS2-0512-M 07:00 – 15:11 491 0.030 7:24-15:11 467 0.014 0.033 0.022 NW, N 9 MPH5/12/10 Wed AMS3 AMS3-0512-M 07:00 – 15:19 499 <0.02 7:24-15:19 465 0.017 0.052 0.020 SE, S 13 MPH5/12/10 Wed AMS4 AMS4-0512-M 07:00 – 15:25 505 <0.02 7:45-15:25 460 0.017 0.032 0.022 NW, N 15 MPH

5/13/10 Thu AMS1 AMS1-0513-M 07:00 – 15:11 491 0.024 7:07-15:11 484 0.020 0.030 0.024 N, NW 8 MPH5/13/10 Thu AMS2 AMS2-0513-M 07:00 – 15:18 498 0.050 7:13-15:18 485 0.015 0.035 0.021 NE, N 8 MPH5/13/10 Thu AMS3 AMS3-0513-M 07:00 – 15:25 505 <0.024 7:18-15:25 487 0.018 0.053 0.022 S, SW 14 MPH5/13/10 Thu AMS4 AMS4-0513-M 07:00 – 15:30 510 0.026 7:23-15:30 487 0.022 0.041 0.026 N, NW 17 MPH

5/14/10 Fri AMS1 AMS1-0514-M 07:00 – 15:03 483 <0.02 7:04-15:03 479 0.015 0.028 0.019 N, NW 9 MPH5/14/10 Fri AMS2 AMS2-0514-M 07:00 – 15:09 489 <0.02 7:10-15:09 479 0.009 0.027 0.014 N, NE 7 MPH5/14/10 Fri AMS3 AMS3-0514-M 07:00 – 15:17 497 <0.02 7:15-15:17 482 0.012 0.024 0.015 SW, S 10 MPH5/14/10 Fri AMS4 AMS4-0514-M 07:00 – 15:24 504 <0.02 7:20-15:24 484 0.013 0.034 0.018 NW, N 14 MPH

5/17/10 Mon AMS1 AMS1-0517-M 07:00 – 15:04 484 <0.02 7:03-15:04 481 0.003 0.009 0.006 S, SW 3 MPH5/17/10 Mon AMS2 AMS2-0517-M 07:00 – 15:10 490 <0.02 7:09-15:10 481 0.001 7.000 0.185 W, SW 2 MPH5/17/10 Mon AMS3 AMS3-0517-M 07:00 – 15:19 499 <0.02 7:15-15:19 484 <0.001 0.006 0.003 NE, E 4 MPH5/17/10 Mon AMS4 AMS4-0517-M 07:00 – 15:25 505 <0.02 7:20-15:25 485 0.003 0.017 0.005 S, SW 4 MPH

5/18/10 Tue AMS1 AMS1-0518-M 07:00 – 15:02 482 <0.02 7:06-15:02 476 0.001 0.026 0.006 W, NW 6 MPH5/18/10 Tue AMS2 AMS2-0518-M 07:00 – 15:09 489 <0.02 7:21-15:09 468 0.008 0.100 0.063 NE, E 6 MPH5/18/10 Tue AMS3 AMS3-0518-M 07:00 – 15:18 498 <0.02 7:26-15:18 472 <0.001 0.018 0.004 SW, S 10 MPH5/18/10 Tue AMS4 AMS4-0518-M 07:00 – 15:24 504 <0.02 7:32-15:24 472 0.001 0.022 0.007 N, NW 11 MPH

5/19/10 Wed AMS1 AMS1-0519-M 07:00 – 15:07 487 <0.02 7:05-15:07 482 0.008 0.019 0.010 S, SE 3 MPH5/19/10 Wed AMS2 AMS2-0519-M 07:00 – 15:14 494 0.020 7:12-15:14 482 0.068 0.122 0.081 W, NW 2 MPH5/19/10 Wed AMS3 AMS3-0519-M 07:00 – 15:22 502 <0.02 7:17-15:22 485 0.005 0.043 0.008 N, NE 5 MPH5/19/10 Wed AMS4 AMS4-0519-M 07:00 – 15:28 508 <0.02 7:21-15:28 487 0.009 0.014 0.011 S, SE 5 MPH

5/20/10 Thu AMS1 AMS1-0520-M 07:00 – 15:09 489 <0.02 7:05-15:07 482 0.007 0.019 0.010 W, NW 5 MPH5/20/10 Thu AMS2 AMS2-0520-M 07:00 – 15:15 495 <0.02 7:13-15:14 481 0.063 0.096 0.075 NW, N 8 MPH5/20/10 Thu AMS3 AMS3-0520-M 07:00 – 15:21 501 <0.02 7:17-15:22 485 0.004 0.026 0.006 S, SW 11 MPH5/20/10 Thu AMS4 AMS4-0520-M 07:00 – 15:30 510 <0.02 7:21-15:28 487 0.004 0.017 0.010 NW, N 13 MPH

5/21/10 Fri AMS1 AMS1-0521-M 07:00 – 15:02 482 <0.02 7:00-15:02 482 0.003 0.042 0.007 NW, N 6 MPH5/21/10 Fri AMS2 AMS2-0521-M 07:00 – 15:09 489 <0.02 7:09-15:09 480 0.061 0.084 0.070 NE, E 7 MPH5/21/10 Fri AMS3 AMS3-0521-M 07:00 – 15:15 495 <0.02 7:13-15:15 482 0.001 0.019 0.004 SW, S 9 MPH5/21/10 Fri AMS4 AMS4-0521-M 07:00 – 15:22 502 <0.02 7:19-15:22 483 0.001 0.009 0.004 N, NW 12 MPH

5/24/10 Mon AMS1 AMS1-0524-M 07:00 – 15:03 483 <0.02 7:06-15:03 477 0.004 0.012 0.006 S, SE 5 MPH5/24/10 Mon AMS2 AMS2-0524-M 07:00 – 15:09 489 <0.02 7:13-15:09 476 0.058 0.114 0.069 S, SE 3 MPH5/24/10 Mon AMS3 AMS3-0524-M 07:00 – 15:16 496 <0.02 7:18-15:16 478 0.001 0.011 0.002 NW, N 4 MPH5/24/10 Mon AMS4 AMS4-0524-M 07:00 – 15:21 501 <0.02 7:23-15:21 478 0.003 0.009 0.005 S, SE 6 MPH

5/25/10 Tue AMS1 AMS1-0525-M 07:00 – 15:00 480 <0.02 7:08-15:00 472 0.002 0.008 0.005 SW, W 5 MPH5/25/10 Tue AMS2 AMS2-0525-M 07:00 – 15:06 486 <0.02 7:17-15:06 469 0.002 2.540 0.027 SW, W 1 MPH5/25/10 Tue AMS3 AMS3-0525-M 07:00 – 15:14 494 <0.02 7:22-15:14 472 0.002 0.007 0.004 SE, E 4 MPH5/25/10 Tue AMS4 AMS4-0525-M 07:00 – 15:20 500 <0.02 7:27-15:20 473 0.002 0.009 0.005 NW, N 6 MPH

5/26/10 Wed AMS1 AMS1-0526-M 07:00 – 15:01 481 <0.02 7:07-15:01 474 0.003 0.022 0.010 NW, W 6 MPH5/26/10 Wed AMS2 AMS2-0526-M 07:00 – 15:11 491 <0.02 7:14-15:11 477 0.021 0.066 0.031 NE, E 5 MPH5/26/10 Wed AMS3 AMS3-0526-M 07:00 – 15:15 495 <0.02 7:18-15:15 477 0.003 0.023 0.008 S, SW 7 MPH5/26/10 Wed AMS4 AMS4-0526-M 07:00 – 15:21 501 <0.02 7:23-15:21 478 0.008 0.023 0.012 NE, N 9 MPH

5/27/10 Thu AMS1 AMS1-0527-M 07:00 – 15:00 480 <0.02 7:05-15:00 475 0.002 3.060 0.054 NW, W 7 MPH5/27/10 Thu AMS2 AMS2-0527-M 07:00 – 15:06 486 <0.02 7:12-15:06 474 0.012 4.710 0.053 NE, N 4 MPH5/27/10 Thu AMS3 AMS3-0527-M 07:00 – 15:15 495 <0.02 7:16-15:15 479 <0.001 0.009 0.004 E, SE 6 MPH5/27/10 Thu AMS4 AMS4-0527-M 07:00 – 15:22 502 <0.02 7:21-15:22 481 <0.001 0.018 0.005 W, NW 9 MPH

5/28/10 Fri AMS1 AMS1-0528-M 07:00 – 15:02 482 <0.02 7:04-15:02 478 0.007 0.017 0.010 NW, N 4 MPH5/28/10 Fri AMS2 AMS2-0528-M 07:00 – 15:07 487 <0.02 7:13-15:07 474 0.028 0.080 0.036 NE, N 6 MPH5/28/10 Fri AMS3 AMS3-0528-M 07:00 – 15:15 495 <0.02 7:17-15:15 478 0.001 0.016 0.003 S, SW 7 MPH5/28/10 Fri AMS4 AMS4-0528-M 07:00 – 15:22 502 <0.02 7:22-15:22 480 0.003 0.010 0.006 N, NE 8 MPH

Notes:

(5) “<” result = below detection limit for the sample.(6) mg/m3 = milligram/cubic meter; Min = minutes; AMS = Air Monitoring Station

(1) Sampling flow rates are below 10 liters per minute.(2) Lab analysis performed by McCampbell Analytical in Pittsburg, CA. (Calif DHS ELAP accreditation #:1644 )(3) Gravimetric dust samples collected on matched-weight 37-mm 0.8-micrometer Mixed Cellulose Ester Filters.(4) Gravimetric Dust samples analyzed in accordance with NIOSH 500 method; Real time respirable aerosol collected by a photometer (preceded with a Dorr-Oliver 1.7 LPM cyclone).

Gravimetric Dust Aerosol – Total Real Time Respirable Aerosol

Table 3

Perimeter Zone Monitoring – Total Dusts (mg/m3) and Real Time Respirable Dust (mg/m3)


Page 1 of 1 For : 5/1 - 5/31/2010


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5/03/10 Mon AMS1 AMS1-0503-V 7:00–15:00 480 <260 <520 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.65/03/10 Mon AMS2 AMS2-0503-V 7:00-15:08 488 <340 <680 <3.4 <3.4 <3.4 <3.4 <3.4 <3.4 <3.4 <3.4 <3.45/03/10 Mon AMS3 AMS3-0503-V 7:00-15:16 496 <450 <900 <4.5 <4.5 <4.5 <4.5 <4.5 <4.5 <4.5 <4.5 <4.55/03/10 Mon AMS4 AMS4-0503-V 7:00-15:25 505 420 <500 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5

5/04/10 Tue AMS1 AMS1-0504-V 07:00 – 15:01 481 460 <250 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.65/04/10 Tue AMS2 AMS2-0504-V 07:00 – 15:09 489 <260 <510 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.65/04/10 Tue AMS3 AMS3-0504-V 07:00 – 15:17 497 <250 <510 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.55/04/10 Tue AMS4 AMS4-0504-V 07:00 – 15:24 504 <330 <650 <3.3 <3.3 <3.3 <3.3 <3.3 <3.3 <3.3 <3.3 <3.3

5/05/10 Wed AMS1 AMS1-0505-V 07:00 – 15:04 484 <260 <520 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.65/05/10 Wed AMS2 AMS2-0505-V 07:00 – 15:12 492 <260 <510 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.65/05/10 Wed AMS3 AMS3-0505-V 07:00 – 15:20 500 <250 <500 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.55/05/10 Wed AMS4 AMS4-0505-V 07:00 – 15:27 507 <250 <500 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5

5/06/10 Thu AMS1 AMS1-0506-V 07:00 – 15:06 486 <260 <520 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.65/06/10 Thu AMS2 AMS2-0506-V 07:00 – 15:12 492 <260 <510 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.65/06/10 Thu AMS3 AMS3-0506-V 07:00 – 15:20 500 <250 <500 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.55/06/10 Thu AMS4 AMS4-0506-V 07:00 – 15:27 507 <250 <500 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5

5/07/10 Fri AMS1 AMS1-0507-V 07:00 – 15:05 485 <260 <520 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.65/07/10 Fri AMS2 AMS2-0507-V 07:00 – 15:11 491 <260 <510 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.65/07/10 Fri AMS3 AMS3-0507-V 07:00 – 15:19 499 <250 <500 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.55/07/10 Fri AMS4 AMS4-0507-V 07:00 – 15:25 505 <250 <500 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5

5/10/10 Mon AMS1 AMS1-0510-V 07:00 – 15:04 484 <260 <520 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.65/10/10 Mon AMS2 AMS2-0510-V 07:00 – 15:11 491 <2800 <5700 <28 <28 <28 <28 <28 <28 <28 <28 <285/10/10 Mon AMS3 AMS3-0510-V 07:00 – 15:25 505 <250 <500 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.55/10/10 Mon AMS4 AMS4-0510-V 07:00 – 15:27 507 <250 <500 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5

5/11/10 Tue AMS1 AMS1-0511-V 07:00 – 15:04 484 <260 <520 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.65/11/10 Tue AMS2 AMS2-0511-V 07:00 – 15:11 491 <260 <510 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.65/11/10 Tue AMS3 AMS3-0511-V 07:00 – 15:19 499 <250 <500 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.55/11/10 Tue AMS4 AMS4-0511-V 07:00 – 15:26 506 <250 <500 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5


5/13/10 Thu AMS1 AMS1-0513-V 07:00 – 15:11 491 <260 <510 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.65/13/10 Thu AMS2 AMS2-0513-V 07:00 – 15:18 498 <1700 <3300 <17 <17 <17 <17 <17 <17 <17 <17 <175/13/10 Thu AMS3 AMS3-0513-V 07:00 – 15:25 505 <250 <500 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.55/13/10 Thu AMS4 AMS4-0513-V 07:00 – 15:30 510 <250 <490 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5

5/14/10 Fri AMS1 AMS1-0514-V 07:00 – 15:03 483 <1300 <2600 <13 <13 <13 <13 <13 <13 <13 <13 <135/14/10 Fri AMS2 AMS2-0514-V 07:00 – 15:09 489 <260 <510 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.65/14/10 Fri AMS3 AMS3-0514-V 07:00 – 15:17 497 <250 <510 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.55/14/10 Fri AMS4 AMS4-0514-V 07:00 – 15:24 504 <250 <500 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5

5/17/10 Mon AMS1 AMS1-0517-V 07:00 – 15:04 484 <260 <520 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.65/17/10 Mon AMS2 AMS2-0517-V 07:00 – 15:10 490 <260 <510 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.65/17/10 Mon AMS3 AMS3-0517-V 07:00 – 15:19 499 <250 <500 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.55/17/10 Mon AMS4 AMS4-0517-V 07:00 – 15:25 505 <250 <500 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5



5/20/10 Thu AMS1 AMS1-0520-V 07:00 – 15:09 489 <250 <510 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.65/20/10 Thu AMS2 AMS2-0520-V 07:00 – 15:15 495 <1300 <2500 <13 <13 <13 <13 <13 <13 <13 <13 <135/20/10 Thu AMS3 AMS3-0520-V 07:00 – 15:21 501 <250 <500 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.55/20/10 Thu AMS4 AMS4-0520-V 07:00 – 15:30 510 <250 <490 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5

5/21/10 Fri AMS1 AMS1-0521-V 07:00 – 15:02 482 <260 <520 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.65/21/10 Fri AMS2 AMS2-0521-V 07:00 – 15:09 489 <1300 <2600 <13 <13 <13 <13 <13 <13 <13 <13 <135/21/10 Fri AMS3 AMS3-0521-V 07:00 – 15:15 495 <250 <510 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.55/21/10 Fri AMS4 AMS4-0521-V 07:00 – 15:22 502 <250 <500 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5

5/24/10 Mon AMS1 AMS1-0524-V 07:00 – 15:03 483 <1300 <2600 <13 <13 <13 <13 <13 <13 <13 <13 <135/24/10 Mon AMS2 AMS2-0524-V 07:00 – 15:09 489 <1300 <2600 <13 <13 <13 <13 <13 <13 <13 <13 <135/24/10 Mon AMS3 AMS3-0524-V 07:00 – 15:16 496 <420 <840 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.25/24/10 Mon AMS4 AMS4-0524-V 07:00 – 15:21 501 <1200 <2500 <12 <12 <12 <12 <12 <12 <12 <12 <12



5/27/10 Thu AMS1 AMS1-0527-V 07:00 – 15:00 480 <430 <860 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.35/27/10 Thu AMS2 AMS2-0527-V 07:00 – 15:06 486 <430 <860 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.35/27/10 Thu AMS3 AMS3-0527-V 07:00 – 15:15 495 <420 <840 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.25/27/10 Thu AMS4 AMS4-0527-V 07:00 – 15:22 502 <420 <830 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2

5/28/10 Fri AMS1 AMS1-0528-V 07:00 – 15:02 482 <430 <860 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.35/28/10 Fri AMS2 AMS2-0528-V 07:00 – 15:07 487 <430 <860 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.35/28/10 Fri AMS3 AMS3-0528-V 07:00 – 15:15 495 <420 <840 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.25/28/10 Fri AMS4 AMS4-0528-V 07:00 – 15:22 502 <420 <830 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2

Notes:(1) Sample flow rate set for 0.02 LPM (liters per minute), equivalent to 20 ml/min (milliliter per minute), with a maximum volume < 10 Liters.(2) Analyzed by McCampbell Analytical in Pittsburg, CA. (Calif ELAP acc #:1644 )(3) TO17 air samples collected in Sorbent Tubes (stainless steel). Method Reference = TO17 by Thermal Desorption/GC MS.(4) “<” result = below detection limit; indicates level above detection, bolded for readability(5) Min = minutes; AMS = Air Monitoring Station(6) µg/m3 = microgram/cubic meter, equivalent to nanogram per liter(7) VOC = Volatile Organic Compounds; SVOC = Semi-Volatile Organic Compounds

Table 4aPerimeter Zone Monitoring – VOC & SVOCs Levels (µg/m3)


value

Page 1 of 4 For: 5/1 - 5/31/2010


(Min)5/03/10 Mon AMS1 AMS1-0503-V 7:00–15:00 4805/03/10 Mon AMS2 AMS2-0503-V 7:00-15:08 4885/03/10 Mon AMS3 AMS3-0503-V 7:00-15:16 4965/03/10 Mon AMS4 AMS4-0503-V 7:00-15:25 505

5/04/10 Tue AMS1 AMS1-0504-V 07:00 – 15:01 4815/04/10 Tue AMS2 AMS2-0504-V 07:00 – 15:09 4895/04/10 Tue AMS3 AMS3-0504-V 07:00 – 15:17 4975/04/10 Tue AMS4 AMS4-0504-V 07:00 – 15:24 504

5/05/10 Wed AMS1 AMS1-0505-V 07:00 – 15:04 4845/05/10 Wed AMS2 AMS2-0505-V 07:00 – 15:12 4925/05/10 Wed AMS3 AMS3-0505-V 07:00 – 15:20 5005/05/10 Wed AMS4 AMS4-0505-V 07:00 – 15:27 507

5/06/10 Thu AMS1 AMS1-0506-V 07:00 – 15:06 4865/06/10 Thu AMS2 AMS2-0506-V 07:00 – 15:12 4925/06/10 Thu AMS3 AMS3-0506-V 07:00 – 15:20 5005/06/10 Thu AMS4 AMS4-0506-V 07:00 – 15:27 507

5/07/10 Fri AMS1 AMS1-0507-V 07:00 – 15:05 4855/07/10 Fri AMS2 AMS2-0507-V 07:00 – 15:11 4915/07/10 Fri AMS3 AMS3-0507-V 07:00 – 15:19 4995/07/10 Fri AMS4 AMS4-0507-V 07:00 – 15:25 505

5/10/10 Mon AMS1 AMS1-0510-V 07:00 – 15:04 4845/10/10 Mon AMS2 AMS2-0510-V 07:00 – 15:11 4915/10/10 Mon AMS3 AMS3-0510-V 07:00 – 15:25 5055/10/10 Mon AMS4 AMS4-0510-V 07:00 – 15:27 507















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<4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3<4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3<4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2<4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2

Notes:(1) Sample flow rate set for 0.02 LPM (liters per minute), equivalent to 20 ml/min (milliliter per minute), with a maximum volume < 10 Liters.(2) Analyzed by McCampbell Analytical in Pittsburg, CA. (Calif ELAP acc #:1644 )(3) TO17 air samples collected in Sorbent Tubes (stainless steel). Method Reference = TO17 by Thermal Desorption/GC MS.(4) “<” result = below detection limit; indicates level above detection, bolded for readability(5) Min = minutes; AMS = Air Monitoring Station(6) µg/m3 = microgram/cubic meter, equivalent to nanogram per liter(7) VOC = Volatile Organic Compounds; SVOC = Semi-Volatile Organic Compounds

Table 4bPerimeter Zone Monitoring – VOC & SVOCs Levels (µg/m3)


value

Page 2 of 4 For: 5/1 - 5/31/2010






















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<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6<13 <13 <13 <13 <13 <13 <13 <13 <13 <13<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5

<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6<13 <13 <13 <13 <13 <13 <13 <13 <13 <13<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5

<13 <13 <13 <13 <13 <13 <13 <13 <13 <13<13 <13 <13 <13 <13 <13 <13 <13 <13 <13<4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2<12 <12 <12 <12 <12 <12 <12 <12 <12 <12

<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5

<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5

<4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3<4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3<4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2<4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2

<4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3<4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3<4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2<4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2

Notes:(1) Sample flow rate set for 0.02 LPM (liters per minute), equivalent to 20 ml/min (milliliter per minute), with a max volume < 10 Liters.(2) Analyzed by McCampbell Analytical in Pittsburg, CA. (Calif ELAP acc #:1644 )(3) TO17 air samples collected in Sorbent Tubes (stainless steel). Method Reference = TO17 by Thermal Desorption/GC MS.(4) “<” result = below detection limit; indicates level above detection, bolded for readability(5) Min = minutes; AMS = Air Monitoring Station(6) µg/m3 = microgram/cubic meter, equivalent to nanogram per liter(7) VOC = Volatile Organic Compounds; SVOC = Semi-Volatile Organic Compounds

Table 4cPerimeter Zone Monitoring – VOC & SVOCs Levels (mg/m3)


value

Page 3 of 4 For: 5/1 - 5/31/2010






















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<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6<3.4 <3.4 <3.4 <3.4 <3.4 <3.4 <5.0 <3.4 <3.4<4.5 <4.5 <4.5 <4.5 <4.5 <4.5 <5.0 <4.5 <4.5<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5

<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5<3.3 <3.3 <3.3 <3.3 <3.3 <3.3 <3.3 <3.3 <3.3

<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 3.2 <2.6 <2.6<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5

<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5

<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5

<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6<28 <28 <28 <28 <28 <28 <28 <28 <28<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5

<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5

<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5

<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6<17 <17 <17 <17 <17 <17 <17 <17 <17<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5

<13 <13 <13 <13 <13 <13 <13 <13 <13<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5

<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5

<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 3.6 <2.6 <2.6<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 3.1 <2.5 <2.5<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5

<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 7.4 <2.5 <2.5<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5

<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6<13 <13 <13 <13 <13 <13 <13 <13 <13<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5

<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6<13 <13 <13 <13 <13 <13 <13 <13 <13<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5

<13 <13 <13 <13 <13 <13 <13 <13 <13<13 <13 <13 <13 <13 <13 <13 <13 <13<4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2<12 <12 <12 <12 <12 <12 <12 <12 <12

<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 3.5 <2.6 <2.6<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5

<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6<2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5

<4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3<4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3<4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2<4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2

<4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3<4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3 <4.3<4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2<4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2 <4.2

Notes:(1) Sample flow rate set for 0.02 LPM (liters per minute), equivalent to 20 ml/min (milliliter per minute), with a max volume < 10 Liters.(2) Analyzed by McCampbell Analytical in Pittsburg, CA. (Calif ELAP acc #:1644 )(3) TO17 air samples collected in Sorbent Tubes (stainless steel). Method Reference = TO17 by Thermal Desorption/GC MS.(4) “<” results = below detection limit; indicates level above detection, bolded for readability(5) Min = minutes; AMS = Air Monitoring Station(6) µg/m3 = microgram/cubic meter, equivalent to nanogram per liter(7) VOC = Volatile Organic Compounds; SVOC = Semi-Volatile Organic Compounds

Table 4dPerimeter Zone Monitoring – VOC & SVOCs Levels (mg/m3)


value

Page 4 of 4 For: 5/1 - 5/31/2010

0

0.002

0.004

0.006

0.008

0.01

0.012

0.014

0.0165/

03/1

0 M

on

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Date

s/cc

AMS1 AMS2

AMS3 AMS4

Chart 1. Airborne Asbestos (s/cc) PG&E Former Hunters Point Power Plant - 5/1 to 5/31/2010

Analyzed by CARB-Modified AHERA TEM Method

Notes: a. non-detectable values (typ. ~0.001 structures/cc [s/cc]), are plotted as zero valuesb. AMS = Air Monitoring Station

0

0.002

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Date

AMS1 AMS2

AMS3 AMS4

Chart 2a. Airborne Chromium (mg/m3) PG&E Former Hunters Point Power Plant - 5/1 - 5/31/2010

Analyzed by ICP/MS

Notes: a. non-detectable values (typ. ~0.0001 mg/m3), are plotted as zero valuesb. AMS = Air Monitoring Stationc. mg/m3 = milligrams/ cubic meter

mg/

m3

Project Monitoring Goal of 0.015 mg/m3

0

0.0002

0.0004

0.0006

0.0008

0.001

0.0012

0.0014

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AMS1 AMS2

AMS3 AMS4

Chart 2b. Airborne Lead (mg/m3) PG&E Former Hunters Point Power Plant - 5/1 - 5/31/2010

Analyzed by ICP/MS


mg/

m3


0

0.005

0.01

0.015

0.02

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0.03

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AMS1 AMS2

AMS3 AMS4

Chart 2c. Airborne Nickel (mg/m3) PG&E Former Hunters Point Power Plant - 5/1 - 5/31/2010

Analyzed by ICP/MS


mg/

m3


0

0.1

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1

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AMS1 AMS2

AMS3 AMS4


mg/

m3

Chart 3a. Airborne Total Dust (mg/m3) PG&E Former Hunters Point Power Plant - 5/1 to 5/31/2010

Analyzed by Gravimetry


00.5

11.5

22.5

33.5

44.5

55.5

66.5

77.5

88.5

99.510

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Date

Min AMS1 Min AMS2 Min AMS3 Min AMS4

Max AMS1 Max AMS2 Max AMS3 Max AMS4

Avg AMS1 Avg AMS2 Avg AMS3 Avg AMS4

mg/

m3

Chart 3b. Airborne Respirable Dust (mg/m3) PG&E Former Hunters Point Power Plant - 5/1 to 5/31/2010

Analyzed by Photometers Preceded with Cyclones

Notes: a. AMS = Air Monitoring Stationb. mg/m3 = milligrams/ cubic meter


0

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gasoline AMS1 gasoline AMS2 gasoline AMS3 gasoline AMS4

diesel AMS1 diesel AMS2 diesel AMS3 diesel AMS4

µg/m

3

Chart 4. Airborne Gasoline & Diesel Levels (µg/m3) PG&E Former Hunters Point Power Plant - 5/1 to 5/31/2010

Analyzed by TO17 Sorbent Tube Method

Notes: a. non-detectable values, are plotted as zero valuesb. AMS = Air Monitoring Stationc. µg/m3 - micrograms per cubic meter

monthly report 0501-0531 - Pacific Gas and Electric Company · 2017. 3. 24. · 334 19th Street •...

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Transcript of monthly report 0501-0531 - Pacific Gas and Electric Company · 2017. 3. 24. · 334 19th Street •...