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## South Coast AQMD Site Survey Report for Los Angeles-North Main Stree t Last updated March 2009

AIRS Number ARB Number Site Start Date Reporting Agency and Agency Code 060371103 70087 09/79 

### South Coast AQMD (061)
Site Address County Air Basin Latitude Longitude El evation 1630 North Main Street Los Angeles, CA 90012 

### Los Angeles South Coast 34° 03' 59" 118° 13' 36" 89

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# Site Survey Report

Siting Information

Site Name: Los Angeles- North Main Street Date: 03/10/09 State Code: 70087 AIRS Number: 060371103

Latitude: 34° 03' 59" Longitude: 118° 13' 36" Elevation (m): 89 Address: 1630 North Main St Los Angeles, CA 90012 Senior AQIS: Albert Dietrich Site Technician: Carl Thompson Site Phone: (323) 225-0178

Operating Agency: South Coast AQMD 

## General Siting Conditions

Station Temperature Traffic Topography Predominant Wind Direction: W

Controlled: Yes Description: Commercial Sit e: Level Arc Air Flow (Deg): 360 Degrees

Recorded: Yes Distance: 40 meters Region: Level Probe Last Cleaned: 05/12/09

Count (Veh/Day): 10000 QA Manual Manifold Clean: Yes

Meteorology Non-vehicular Local Sources Approved: Yes Cleaning Schedule: 6 Months

Located With Instruments: Yes Description: None Agency: South Coast AQMD Autocalibrator Type: Environics 9100

Distance: N/A Urbanization: Suburban Site Survey Complete: Yes

Direction: N/A Ground Cover: Asphalt Logbo ok Up To Date: Yes



## Action Items

Comments

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# Detailed Site Information

Site Name Los Angeles-North Main Street AQS ID (AIRS #) 060371103 GIS coordinates Latitude: 34° 03’ 59” Longitude: 11 8° 13’ 36” Location DWP General Warehouse Building Address 1630 North Main Street, Los Angeles, CA 900 12 County Los Angeles Dist. to road 40 meters Traffic count 10,000 veh/day Groundcover Asphalt PEP audit? 05/19/09 NPAP audit? 07/22/08 Flow audit? 07/22/08 Representative Area 31100-Los Angeles, Long Beach-S anta Ana, CA MSA Pollutant Carbon Monoxide Nitrogen Dioxide Ozone Su lfur Dioxide Monitor obj REPRESENTATIVE CONCENTRATION HIGHEST CONCENTRATION REPRESENTATIVE CONCENTRATION REPRESENTATIVE CONCENTRATION Spatial scale Neighborhood Scale Neighborhood Scale Neighborhood Scale Neighborhood Scale Sampling method Horiba APMA-360 42i API/Teledyne 40 0E TECO 43i-TLE Serial # 576876073 CM 08360037 520-S 0831832126 Property # 0016214 16730 N/A 16746 Last Calibration Date 03/10/09 03/03/09 12/12/08 02 /10/09 Analysis method N/A N/A N/A N/A Start date 03/79 03/79 03/79 03/79 Operation schedule 1:1 1:1 1:1 1:1 Sampling season All Year All Year All Year All Year Probe height 12.3 12.3 12.3 12.3 Distance from supporting structure 2.0 2.0 2.0 2.0

Distance from obstructions on roof N/A N/A N/A N/A

Distance from obstructions not on roof N/A N/A N/A N/A

Distance from trees N/A N/A N/A N/A Distance to furnace or incinerator flue N/A N/A N/A N/A

Distance between collocated monitors N/A N/A N/A N/A

Unrestricted airflow Yes Yes Yes Yes Probe material Teflon Teflon Teflon Teflon Residence time 7.2 7.6 8.1 9.5 Will there be changes within the next 18 months? No No No No

Is it suitable for comparison against the annual PM2.5? N/A N/A N/A N/A

Frequency of flow rate verification for manual PM samplers audit N/A N/A N/A N/A

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Frequency of flow rate verification for automated PM analyzers audit N/A N/A N/A N/A

Frequency of onepoint QC check (gaseous) Nightly Nightly Nightly Nightly

Last Annual Performance Evaluation (gaseous) 07/17/08 02/25/09 07/13/08 02/05/09

Last two semi-annual flow rate audits for PM monitors N/A N/A N/A N/A

Pollutant PM10-SSI – A PM10-SSI (Natts) – B TSP (Le ad) – B TSP (Lead) – A Monitor obj REPRESENTATIVE CONCENTRATION REPRESENTATIVE CONCENTRATION REPRESENTATIVE CONCENTRATION REPRESENTATIVE CONCENTRATION Spatial scale Neighborhood Scale Neighborhood Scale Neighborhood Scale Neighborhood Scale Sampling method T300-310 Tisch 300-310 Tisch 300-31 0 Tisch 300-310 Serial # 0516 0432 0568 0567 Property # 4935 50461 1573 4967 Last Calibration Date 03/27/09 06/04/08 03/27/09 03 /27/09 Analysis method Weighed by SCAQMD lab Weighed by SCAQMD lab Weighed by SCAQMD lab Weighed by SCAQMD lab Start date 03/79 01/07 03/79 03/79 Operation schedule 1:6 6 per Year 1:6 1:6 Sampling season All Year All Year All Year All Year Probe height 11.7 11.7 11.3 11.3 Distance from supporting structure 1.5 1.5 1.1 1.1

Distance from obstructions on roof N/A N/A N/A N/A

Distance from obstructions not on roof N/A N/A N/A N/A

Distance from trees N/A N/A N/A N/A Distance to furnace or incinerator flue N/A N/A N/A N/A

Distance between collocated monitors 2 2 2 2

Unrestricted airflow Yes Yes Yes Yes Probe material N/A N/A N/A N/A Residence time N/A N/A N/A N/A Will there be changes within the next 18 months? No No No No

Is it suitable for comparison against the annual PM2.5? N/A N/A N/A N/A

Frequency of flow rate verification for manual PM samplers audit Monthly Monthly N/A N/A

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Frequency of flow rate verification for automated PM analyzers audit N/A N/A N/A N/A

Frequency of onepoint QC check (gaseous) N/A N/A N/A N/A

Last Annual Performance Evaluation (gaseous) N/A N/A N/A N/A

Last two semi-annual flow rate audits for PM monitors 05/11/09 05/11/09 N/A N/A

Pollutant PM10 BAM BAM-PM2.5 SASS 2.5 SASS 2.5 Monitor obj REPRESNTATIVE CONCENTRATION HIGHEST CONCENTRATION HIGHEST CONCENTRATION HIGHEST CONCENTRATION Spatial scale Neighborhood Scale Neighborhood Scale Neighborhood Scale Neighborhood Scale Sampling method Andersen PM10 BAM MetOne BAM 1020 MetOne SASS MetOne SASS

Serial # 97 F8025 D8051 C4157 Property # 10590 164836 (USC) E000289 E000229 Last Calibration Date 04/18/08 12/04/08 01/06/09 07 /14/08 Analysis method N/A N/A Analyzed by SCAQMD lab Analyzed by SCAQMD lab Start date 05/01/03 12/04/08 12/10/08 02/07 Operation schedule 1:1 1:1 1:3 1:6 Sampling season All Year All Year All Year All Year Probe height 12.0 12.8 12.0 12.0 Distance from supporting structure 1.8 2.6 1.8 1.8

Distance from obstructions on roof N/A N/A N/A N/A

Distance from obstructions not on roof N/A N/A N/A N/A

Distance from trees N/A N/A N/A N/A Distance to furnace or incinerator flue N/A N/A N/A N/A

Distance between collocated monitors 2 2 2 2

Unrestricted airflow Yes Yes Yes Yes Probe material N/A N/A N/A N/A Residence time N/A N/A N/A N/A Will there be changes within the next 18 months? No No No No

Is it suitable for comparison against the annual PM2.5? N/A Yes N/A N/A

Frequency of flow rate verification for manual PM samplers audit N/A N/A Monthly Monthly

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Frequency of flow rate verification for automated PM analyzers audit Monthly Bi-Weekly N/A N/A

Frequency of onepoint QC check (gaseous) N/A N/A N/A N/A

Last Annual Performance Evaluation (gaseous) N/A N/A N/A N/A

Last two semi-annual flow rate audits for PM monitors 04/18/08 N/A 04/18/08 04/18/08

Pollutant SASS PM2.5 (EPA STN) PM2.5 PM2.5 Xontech 910A (Natts)

Monitor obj REPRESENTATIVE CONCENTRATION REPRESENTATIVE CONCENTRATION REPRESENTATIVE CONCENTRATION REPRESENTATIVE CONCENTRATION Spatial scale Neighborhood Scale Neighborhood Scale Neighborhood Scale Neighborhood Scale Sampling method MetOne SASS Andersen RAAS 2.5 Andersen RAAS 2.5 Xontech 910A

Serial # A6186 305 347 4687 Property # N/A E000005 E000006 E000173 Last Calibration Date 03/27/09 12/23/08 04/14/09 02 /11/09 Analysis method EPA STN Weighed by SCAQMD lab Weighed by SCAQMD lab Analyzed by SCAQMD lab Start date 03/07/07 01/99 01/99 01/07 Operation schedule 1:6 1:1 1:6 1:6 Sampling season All Year All Year All Year All Year Probe height 12.0 12.1 12.1 12.6 Distance from supporting structure 1.8 1.9 1.9 2.3

Distance from obstructions on roof N/A N/A N/A N/A

Distance from obstructions not on roof N/A N/A N/A N/A

Distance from trees N/A N/A N/A N/A Distance to furnace or incinerator flue N/A N/A N/A N/A

Distance between collocated monitors 2 2 2 2

Unrestricted airflow Yes Yes Yes Yes Probe material N/A N/A N/A SS Residence time N/A N/A N/A 5.7 / 2.7 Will there be changes within the next 18 months? No No No No

Is it suitable for comparison against the annual PM2.5? N/A Yes Yes N/A

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Frequency of flow rate verification for manual PM samplers audit Monthly Monthly Monthly N/A

Frequency of flow rate verification for automated PM analyzers audit N/A N/A N/A N/A

Frequency of onepoint QC check (gaseous) N/A N/A N/A N/A

Last Annual Performance Evaluation (gaseous) N/A 05/11/09 05/11/09 N/A

Last two semi-annual flow rate audits for PM monitors 04/18/08 12/08 12/08 N/A

Pollutant Xontech 910B (Natts) Xontech 920 (NATTS) Xontech 920 (NATTS) PUF (Natts)

Monitor obj REPRESENTATIVE CONCENTRATION REPRESENTATIVE CONCENTRATION REPRESENTATIVE CONCENTRATION REPRESENTATIVE CONCENTRATION Spatial scale Neighborhood Scale Neighborhood Scale Neighborhood Scale Neighborhood Scale Sampling method Xontech 910A Xontech 920 Xontech 92 0 Tisch Puf Serial # 3634 146 156 007 Property # 14392 15466 N/A 50493 Last Calibration Date 01/02/09 02/11/09 02/12/09 02 /11/09 Analysis method Analyzed by SCAQMD lab Analyzed by SCAQMD lab Analyzed by SCAQMD lab Weighed by SCAQMD lab Start date 01/07 01/07 01/07 11/19/04 Operation schedule 6 / Year 1:6 6 / Year 1:6 Sampling season All Year All Year All Year All Year Probe height 12.6 11.5 11.5 11.3 Distance from supporting structure 2.3 1.3 1.3 1.1

Distance from obstructions on roof N/A N/A N/A N/A

Distance from obstructions not on roof N/A N/A N/A N/A

Distance from trees N/A N/A N/A N/A Distance to furnace or incinerator flue N/A N/A N/A N/A

Distance between collocated monitors 2 2 2 2

Unrestricted airflow Yes Yes Yes Yes Probe material SS N/A N/A N/A Residence time 2.6 N/A N/A N/A Will there be changes within the next 18 months? No No No No

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Is it suitable for comparison against the annual PM2.5? N/A N/A N/A N/A

Frequency of flow rate verification for manual PM samplers audit N/A N/A N/A N/A

Frequency of flow rate verification for automated PM analyzers audit N/A N/A N/A N/A

Frequency of onepoint QC check (gaseous) N/A N/A N/A N/A

Last Annual Performance Evaluation (gaseous) N/A N/A N/A N/A

Last two semi-annual flow rate audits for PM monitors N/A N/A N/A N/A

Pollutant ARB Toxics ARB Toxics URG 2.5 (EPA STN) Monitor obj REPRESENTATIVE CONCENTRATION REPRESENTATIVE CONCENTRATION REPRESENTATIVE CONCENTRATION Spatial scale Neighborhood Scale Neighborhood Scale Neighborhood Scale Sampling method RM Environmental Systems Inc. 924 RM Environmental Systems Inc. 910PC URG 3000N

Serial # 9241002 6101 3N-B0143 Property # 20021009 (ARB) 20062214 (ARB) N/A Last Calibration Date 04/29/09 N/A 01/20/09 Analysis method Analyzed by CARB lab Analyzed by CARB lab Analyzed by SCAQMD lab Start date 08/07 08/07 03/07/07 Operation schedule 1:12 1:12 1:6 Sampling season All Year All Year All Year Probe height 12.18 12.6 12.3 Distance from supporting structure 1.9 2.3 2.0

Distance from obstructions on roof N/A N/A N/A

Distance from obstructions not on roof N/A N/A N/A

Distance from trees N/A N/A N/A Distance to furnace or incinerator flue N/A N/A N/A

Distance between collocated monitors N/A N/A 2

Unrestricted airflow Yes Yes Yes Probe material Teflon Teflon N/A Residence time N/A N/A N/A

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Will there be changes within the next 18 months? No No No

Is it suitable for comparison against the annual PM2.5? N/A N/A N/A

Frequency of flow rate verification for manual PM samplers audit N/A N/A Monthly

Frequency of flow rate verification for automated PM analyzers audit N/A N/A N/A

Frequency of onepoint QC check (gaseous) N/A N/A N/A

Last Annual Performance Evaluation (gaseous) N/A N/A N/A

Last two semi-annual flow rate audits for PM monitors N/A N/A N/A

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## Los Angeles-North Main Street

Site Photos

Looking North from the probe. Looking East from the probe.

Looking South from the probe. Looking West from the probe.

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## Los Angeles-North Main Street Site Photos (Cont.)

Looking at the probe from the North. Looking at the probe from the East.

Looking at the probe from the South. Looking at the probe from the West.