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APPENDIX D

NETWORK WAIVER REQUESTS

Burbank

The Palm Avenue Burbank air monitoring site was decommissioned During June, 2014 at the 

request of the property owner. Currently SCAQMD is working with LADWP to relocate to a 

site within one mile of the former site. EPA was informed of this closure via email in prior to its

closure.

At the time of closure, the Burbank was the DV location for the Los Angeles CBSA with a 24 

hour value of 30.8 ug/m3 and Mira Loma the basin DV at 36.6 ug/m3. This year the DV site for 

the Los Angeles is the Los Angeles Main site at 32.0 ug/m3 and basin DV Mira Loma at 36.6 

ug/m3. SCAQMD is working in consultation with EPA to establish a new site to represent 

Burbank in FY 2015-2016. It is requested a waiver be granted for suspension of monitoring 

until a suitable replacement site can be located. Even with the site closure, SCAQMD exceeds

the minimum monitoring requirements for all criteria pollutants and monitoring programs.

Long Beach

The North Long Beach air monitoring site was decommissioned during September, 2013 at the 

request of the property owner. Currently SCAQMD is working with Long Beach Public Health 

to relocate to a site within one mile of the former site. EPA was informed of this closure via 

email in prior to closure. A separate smaller site at the rear of the facility remains open 

measuring PM2.5 FRM particulate. 

Even with the site closure, SCAQMD exceeds the minimum monitoring requirements for all 

criteria pollutants and monitoring programs. SCAQMD is working in consultation with EPA to 

establish a new site to represent Burbank in FY 2015-2016. It is requested a waiver be granted 

for suspension of monitoring until a suitable replacement site can be located.

Ontario

The Ontario (Fire Station) air monitoring site was decommissioned during June, 2014 at the 

request of the property owner. Currently SCAQMD is working with San Bernardino County 

Public Health to consolidate measurements with nearby sites. EPA was informed of this closure 

via email prior to its closure. At the time of closure, Ontario was a collocated site for PM10. In 

order to meet the minimum collocation requirements a PM10 was relocated to the Mira Loma 

(Van Buren) site.

Even with the site closure, SCAQMD exceeds the minimum monitoring requirements for all 

criteria pollutants and monitoring programs. It is requested a waiver be granted to discontinue 

monitoring at Ontario.

Riverside Magnolia

The Riverside Magnolia air monitoring site was decommissioned during March 2015 at the end 

of the lease due to safety issues. Currently SCAQMD is assessing relocation of the site and 

considering underrepresented areas identified in the 5 year network assessment. EPA was 
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informed of this closure via email prior to its closure. Even with the site closure, SCAQMD 

exceeds the minimum monitoring requirements for all criteria pollutants and monitoring 

programs. It is requested a waiver be granted to discontinue monitoring until a suitable 

replacement site is identified, and located based upon the 5 year network assessment.

Crestline

The Crestline air monitoring site is located on the grounds of the Lake Gregory, San Bernardino 

County Regional Park within the San Bernardino National Forest. The site began operation in 

October, 1973 and has at times been a design value site for ozone. Since the time of its 

inception, trees adjacent to the facility have grown to a height greater than the inlet probe. 

Because these trees are parallel to the site a majority of the time they are not considered an 

obstruction per 40 CFR 58 Appendix E. Readings remain unaffected since the nearest tree is at 

10 meters from the inlet probe and the predominant wind direction is from the west. A wind rose 

showing direction for 2014 is shown below. It is requested a waiver be granted for siting at 

Crestline based on predominant wind direction and continuity of data.

Crestline Wind Data 2014
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Crestline Satellite View 

Crestline Site
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Rubidoux

The Rubidoux air monitoring site is located on property owned by Southern California Edison. 

The site began operation in September, 1972. Since that time trees north east of the particulate 

samplers have grown to a height exceeding siting criteria; however measurements remain 

unaffected since the predominant wind direction is parallel to trees. Contract revisions are 

currently being negotiated with Southern California Edison to allow for extra space to move the 

particulate samplers further from trees to better meet EPA siting criteria. The changes to the 

contract and particulate sampler move are expected to take place during 2015. A waiver is 

requested to continue monitoring while monitors can be moved to better meet EPA siting 

criteria.

Rubidoux Wind Data 2014
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Rubidoux Satellite View
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Pasadena

The Pasadena air monitoring site is located on property owned by Caltech Pasadena. The site 

began operation in April, 1982. Since that time trees east and west of the particulate samplers 

have grown to a height exceeding siting criteria and while they can be considered an obstruction, 

it is requested a waiver be granted to continue morning based on population exposure. Longer 

term the site is being examined in the 5 year network assessment for consolidation with nearby 

sites. Decisions regarding site consolidation will be made in consultation with EPA Region IX 

representatives. It is requested a waiver be granted for siting at Pasadena until the site can be 

moved to a more representative location. 

Pasadena Wind Data 2014
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Pasadena Satellite View
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Pomona

The Pomona air monitoring site has been in operation since June, 1965. The site was originally a 

microscale site for carbon monoxide. Since the time of inception it was noted trees south of the 

site grew to be an obstruction, however they were trimmed during December, 2014 to a height

below the inlet. It is requested a waiver be granted for Pomona based on site maintenance and 

data continuity until the 5 year network assessment is complete and recommendations for the site 

can be discussed and implemented. 

Pomona Wind Data 2014
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Pomona Satellite View
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Anaheim

The Anaheim air monitoring site is located on Anaheim City School District property. The site 

began operation in August, 2001. The site was originally anticipated as a temporary location 

however since then it has become permanent. Because of this there are siting issues including 

palm trees and proximity to the nearest traffic lane of the residential street (at 8m north from the 

inlet probes). Measurements remain unaffected predominant majority of the time the wind 

direction is from the south, the palm trees are minimal obstruction, and traffic is residential. It is 

requested a waiver be granted for siting at Anaheim based on the preceding data. Longer term 

the site is scheduled to be renovated placing the inlet probes at greater than 10m from the traffic 

lanes and trees.

Anaheim Wind Data 2014
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Anaheim Satellite View
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Hudson

The Hudson air monitoring site is located on Long Beach Unified School District property. The 

site began operation as part of the MATES IV project. The site was originally anticipated as a 

temporary location however since then it has become permanent, monitoring potential emissions 

from the nearby the ports of Los Angeles, Long Beach and Terminal Island Freeway. Because of 

this there are siting issues including proximity to the nearest traffic lane. Measurements remain 

unaffected since the predominant wind direction is from the south west and the roadway is to the 

east. It is requested a waiver be granted for siting at Hudson based on predominant wind 

direction. Longer term the site is being examined closely in the 5 year network assessment for 

consolidation with nearby sites.

Hudson Wind Data 2014
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Hudson Satellite View
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South Long Beach

The South Long Beach air monitoring site is located on the Long Beach City College campus. 

The site was established to focus on particulate emissions from the Ports of Long Beach and Los 

Angeles. Since the inception of the site, the college has expanded, storing temporary containers 

nearby, constructing new buildings and expanding parking. Because of this there are potential 

siting issues. It is requested a waiver be granted for siting at South Long Beach based on 

predominant wind direction and continuity of data collection focused on population exposure. 

Longer term the site is being examined closely in the 5 year network assessment for 

consolidation with nearby sites.

South Long Beach Wind Data 2014
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South Long Beach Satellite View
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Fontana

The Fontana air monitoring site has been in operation since August, 1981. Since the time of 

inception it was noted a wall downwind of the site exceeded the height of the inlet probes as did 

a nearby building. The adjacent wall and building are greater than the 2m minimum distance 

requirement and meet the, “twice the height that the obstacle protrudes above the probe, inlet, or 

monitoring path” requirement in 40 CFR 58 Appendix E. Measurements also remain unaffected 

since the predominant wind direction is from the south west. It is requested a waiver be granted 

for siting at Fontana. 

Fontana Wind Data 2014
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Fontana Satellite View
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Perris

The Perris air monitoring site has been in operation since August, 1981. Since the time of 

inception it was noted the nearby building and new fences have become an obstruction. While 

the nearby fences and building are an obstruction, it is requested a waiver be granted to continue 

morning based on population exposure. A new site is currently being sought to represent the 

Perris community and will be selected in consultation with EPA Region IX representatives. 

Perris Wind Data 2014
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Perris Satellite View