San Joaquin Valley Unified Air Pollution Control District April 16, 2015

 Chapter 4: Classification and Attainment 

 2015 Plan for the 1997 PM2.5 Standard 

Chapter 4

Classification	and	Attainment	

2015 Plan for the 1997 PM2.5 Standard

SJVUAPCD	

 

 
San Joaquin Valley Unified Air Pollution Control District April 16, 2015

 Chapter 4: Classification and Attainment 

 2015 Plan for the 1997 PM2.5 Standard 

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San Joaquin Valley Unified Air Pollution Control District April 16, 2015

4-1 Chapter 4: Classification and Attainment 

2015 Plan for the 1997 PM2.5 Standard 

Chapter 4: Classification and Attainment 

Until the exceptional weather conditions experienced due to the recent drought, the San 

Joaquin Valley (Valley) was on track to attain the 1997 annual PM2.5 standard before 

the federally mandated deadline of December 2014. As discussed earlier in Chapter 1 

and Appendix F, the Valley was on the verge of attaining the 1997 federal PM2.5 

national ambient air quality standard (15 μg/m3 for annual, 65 μg/m3 for 24-hour) with an 

average annual concentration of 14.7 μg/m3 and average 24-hour concentration of 56.4 

μg/m3

 in 2012 at the Valley’s historic peak PM2.5 sites in Bakersfield. The San Joaquin 

Valley Air Pollution Control District’s (District’s) 2008 PM2.5 Plan satisfied all federal 

implementation requirements for the 1997 PM2.5 standard at the time of adoption and 

demonstrated attainment based on projected 2012-2014 PM2.5 levels. All emission 

reduction commitments under that plan have been fulfilled. Due to the extreme drought, 

stagnation, strong inversions, and historically dry conditions experienced over the winter 

of 2013-2014, analysis showed that the Valley could not reach attainment even if the 

Valley experienced zero PM2.5 pollution for the last three quarters of 2014. Since the 

U.S. Environmental Protection Agency’s (EPA) policy does not allow for drought and 

stagnation to qualify as “exceptional events” under the Clean Air Act, the District was 

left with no choice but to request a bump-up in classification from Moderate 

nonattainment to Serious nonattainment, which was finalized for approval by EPA on 

April 7, 2015. 

4.1 REQUEST FOR ATTAINMENT EXTENSION 

As a Serious nonattainment area, the Valley would have until December 31, 2015 to 

attain the 1997 PM2.5 national ambient air quality standards (NAAQS) as determined 

using air monitoring data collected in calendar years 2013 through 2015.1 Under 

federal Clean Air Act (CAA) Title 1, Part D, Subpart 4 (Subpart 4) Section (§) 188(e), 

upon application by any State, the EPA may grant one extension of the attainment date 

of up to five years for a Serious nonattainment area beyond the date specified under 

CAA §188(c)(2). To be granted an extension, an area must show that it cannot attain 

by December 2015, but will attain as expeditiously as possible and no later than 2020. 

In this plan, the District requests a one-time extension of the attainment deadline for the 

24-hour standard to 2018 and the annual standard to 2020, based on the following 

findings: 

4.1.1 Attainment by the December 31, 2015 Deadline is Impracticable 

Design values (DV) represent the official metric for assessing air quality improvements 

and attainment of the NAAQS per the federal CAA and EPA regulations. Design value 

calculations are three-year averages that follow EPA protocols for rounding, averaging 

conventions, data completeness, sampling frequency, data substitutions, and data 

validity. The results provide consistency and transparency to determine basin-wide 

 

1

 U.S. Environmental Protection Agency (2012, March 2). Memorandum from the Office of Air Quality Planning and 

Standards: Implementation Guidance for the 2006 24-Hour Fine Particle (PM2.5) National Ambient Air Quality 

Standards (NAAQS). Pages 14-15. Retrieved from 

http://www.epa.gov/ttn/naaqs/pm/pdfs/20120302_implement_guidance_24-hr_pm2.5_naaqs.pdf
San Joaquin Valley Unified Air Pollution Control District April 16, 2015

4-2 Chapter 4: Classification and Attainment 

2015 Plan for the 1997 PM2.5 Standard 

attainment for both components of the 1997 PM2.5 NAAQS, including the 24-hour 

PM2.5 standard of 65 μg/m3 and the annual PM2.5 standard of 15.0 μg/m3. If any 

monitoring site within the air basin has either a 24-hour or annual PM2.5 design value 

higher than the respective standard, then the entire air basin is designated 

nonattainment. EPA provides detailed guidelines and standards for the calculation2

 and 

data handling3

 methodologies. 

For the Valley to attain the 1997 NAAQS for the years 2013-2015, the monitoring data 

for this period would need to satisfy both the 24-hour average and annual average 

attainment tests, which are based on 98th percentile values and calendar year averages, 

respectively. Since the PM2.5 monitoring data during this period was heavily influenced 

by the extreme drought conditions, long periods of stagnation, and strong inversions 

experienced during the winter of 2013-2014, as described in more detail below, the 

Valley cannot demonstrate attainment of either component of the 1997 NAAQS by 

December 2015. 

Meteorology during the Winter Season of 2013-2014 

In 2013, California experienced record-low precipitation and snow pack levels at only 20 

percent of the normal amount of snow to provide water for the year. Specifically, in the 

Valley, 2013 represented the driest year since the start of record keeping in 1895. 

Extreme weather conditions over the winter of 2013-2014 overwhelmed emissions 

controls and led to abnormally high PM2.5 levels. Because of this, attainment of the 

1997 annual and 24-hour PM2.5 standards based on 2012-2014 data is impossible. 

Furthermore, reclassification to Serious will not initially provide an attainment deadline 

that the Valley can meet, since the Serious deadline is based on 2013-2015 data, which 

is also heavily affected by the high PM2.5 values recorded during the winter period of 

2013-2014. 

Stable meteorology during the winter season can increase PM2.5 concentrations to high 

levels by providing strong temperature inversions and low wind speeds (see Chapter 2). 

When this occurs, the PM2.5 concentrations during the winter months of November to 

February can climb to very high levels. The winter of 2013-2014 experienced the 

strongest average atmospheric stability over the last 15 years creating conducive 

conditions for the formation and retention of high PM2.5 concentrations. This was the 

result of a persistent strong high pressure over the eastern Pacific that effectively 

blocked weather disturbances from entering California, which inhibited dispersion during 

November, December, and January. 

In addition to the historically strong atmospheric stability, the winter of 2013-2014 also 

experienced record low precipitation totals, with some locations breaking records over 

100 years old. These unprecedented dry conditions exacerbated the air quality 

 

2

 Interpretation of the National Ambient Air Quality Standards for PM2.5, 40 C.F.R. Pt. 50 Appendix N (2012). 

Available at http://ecfr.gpoaccess.gov/cgi/t/text/textidx?c=ecfr&sid=9bdb7a34dcb75892aef9ee60b74da642&rgn=div9&view=text&node=40:2.0.1.1.1.0.1.18.15&idno=40 3

 Environmental Protection Agency [EPA]: Office of Air Quality Planning and Standards. (1999, April). Guideline on 

Data Handling Conventions for the PM NAAQS (EPA-454/R-99-008). Retrieved from 

http://www.epa.gov/ttn/oarpg/t1/memoranda/pmfinal.pdf
San Joaquin Valley Unified Air Pollution Control District April 16, 2015

4-3 Chapter 4: Classification and Attainment 

2015 Plan for the 1997 PM2.5 Standard 

challenge during the winter of 2013-2014. As a result of the extreme meteorology, the 

PM2.5 concentrations experienced in the Valley were the highest recorded in over a 

decade. 

1997 Annual PM2.5 NAAQS 

As background, the 1997 annual average PM2.5 standard was set at 15.0 μg/m3

. The 

design value (DV) for the annual PM2.5 standard, which is the official EPA metric used 

to determine whether an area is in attainment of a standard, is defined as the 3-year 

average of annual averages over three consecutive years. Each individual annual 

average is calculated as the average among the four quarterly averages throughout the 

year. For example, the 2015 design value would be calculated as the average among 

the annual averages for the years 2013, 2014, and 2015, where the average of each of 

these individual years is calculated as the average among their respective quarterly 

averages. If the final annual average DV for all of the regulatory PM2.5 monitoring sites 

for the 3-year period is less than or equal to 15.0 μg/m3

, then the area would be in 

attainment of the standard. 

Because both 2013 and 2014 PM2.5 concentrations were influenced by the extreme 

weather of the 2013-14 winter season, the 2015 annual averages would have to be 

improbably low in the southern portion of the Valley in order for the 2013-2015 period to 

satisfy the annual average attainment test. To show this improbability, the District 

determined the maximum annual PM2.5 average needed in 2015 to bring each air 

quality monitoring site into attainment during the 2013-2015 period. This determination 

was made by first estimating the 2014 values with the best available information. On 

January 16, 2015 the District pulled data from the EPA Air Quality System (AQS) to 

estimate the 2014 values. Most values in the “2014 Estimated” column of Table 4-1 

were determined using 2014 AQS data when available, and preliminary data was used 

for the remainder of the year. Sites marked with an asterisk were calculated using 4th

Quarter 2013 PM2.5 Data because 4th Quarter 2014 filter data was unavailable at the 

time of this 2015 PM2.5 Plan. The maximum annual PM2.5 average in 2015 needed to 

bring each site into attainment during the 2013-2015 period was then subsequently 

calculated. These results are displayed in Table 4-1. 

The sites in Hanford, Visalia-Church, and Bakersfield-California would all have to have 

a 2015 annual average under 10 μg/m3 (historical data demonstrates that the Valley is 

not likely to achieve these annual averages). With the 2013 and 2014 PM2.5 data from 

Bakersfield-Planz, the site is already out of attainment of the annual standard, without 

including the 2015 data. Based on this impossibility, the Valley cannot reach attainment 

of the annual average portion of the 1997 PM2.5 standard during the 2013-2015 period. 

This demonstrates the long reaching ramifications that one season of unusually high 

values due to the extreme weather can have on a region’s ability to reach attainment. 
San Joaquin Valley Unified Air Pollution Control District April 16, 2015

4-4 Chapter 4: Classification and Attainment 

2015 Plan for the 1997 PM2.5 Standard 

Table 4-1 Maximum Allowable PM2.5 Annual Averages Needed in 2015 to Reach 

Attainment of Annual Standard in 2013-2015 

Site 2013 

Measured Actuals 

2014 

Estimated 

2015 

Max Allowable for 

Attainment 

Stockton-Hazelton 17.7 12.3 15.0 

Manteca 11.6 9.9 23.5 

Modesto 14.3 11.6 19.1 

Turlock 15.0 12.6 17.4 

Merced-M* 13.5 13.6 17.9 

Merced-Coffee 13.3 10.9 20.8 

Madera-City 17.8 14.2 13.0 

Clovis 15.9 15.3 13.8 

Fresno-Garland 16.8 15.3 12.9 

Fresno-Winery* 15.9 16.8 12.3 

Tranquility 8.3 7.9 28.8 

Corcoran* 15.6 16.6 12.8 

Hanford 18.2 17.2 9.6 

Visalia-Church 18.9 16.7 9.4 

Bakersfield-California 20.0 17.9 7.1 

Bakersfield-Planz* 22.8 24.6 -2.4 

*Calculated using 4th Quarter 2013 PM2.5 Data, 2014 4th Quarter filter data unavailable at this time. 

All other sites, used 2014 AQS data when available, preliminary data was used for the remainder of the year. 

1997 24-Hour PM2.5 NAAQS 

The 1997 24-hour average PM2.5 standard was set at 65 μg/m3. The DV for the 24-

hour average PM2.5 standard, is defined as the 3-year average of annual 98th

percentile values over three consecutive years. Each individual annual 98th percentile 

value is calculated by ranking the 24-hour average values within a year and selecting 

the value corresponding with the 98th percentile. The 98th percentile values for each 

individual year over the 3-year period are averaged to produce the final DV. For 

example, the 2015 design value would be calculated as the average among the 98th

percentile values for the years 2013, 2014, and 2015. If the final annual average DV for 

all of the regulatory PM2.5 monitoring sites for the 3-year period is less than or equal to 

65 μg/m3, then the area would be in attainment of the standard. 

The maximum 98th percentile 24-hour average PM2.5 concentrations in 2015 needed to 

bring each air quality monitoring site into attainment during the 2013-2015 period were 

calculated using a methodology similar to that discussed above. First, the 2014 values 

were estimated using data pulled from the EPA AQS on January 16, 2015. Most values 

in the “2014 Estimated” column of Table 4-2 were determined using 2014 AQS data 

when available, and preliminary data was used for the remainder of the year. Sites 

marked with an asterisk were calculated using 4th Quarter 2013 PM2.5 Data because 4th

Quarter 2014 filter data was unavailable at the time of this 2015 PM2.5 Plan. The 

maximum 98th percentile 24-hour average PM2.5 concentrations in 2015 need to bring 

each site into attainment during the 2013-2015 period was then subsequently 

calculated. Refer to Table 4-2 for the results of this analysis. 
San Joaquin Valley Unified Air Pollution Control District April 16, 2015

4-5 Chapter 4: Classification and Attainment 

2015 Plan for the 1997 PM2.5 Standard 

As with the annual average data, because both 2013 and 2014 were influenced by the 

extreme weather of 2013-2014, the 2015 averages would have to be improbably low in 

the southern portion of the Valley. The Bakersfield-Planz air monitoring site would need 

to have a 98th percentile 24-hour PM2.5 concentration of 15.9 μg/m3

 for 2015 to show 

attainment for the three year average. Historical data demonstrates that the Valley is 

extremely unlikely to achieve these averages for 2015. Based on this impossibility, the 

Valley cannot reach attainment of the 24-hour average portion of the 1997 PM2.5 

standard during the 2013-2015 period. 

Table 4-2 Maximum Allowable 98th Percentile 24-Hour Average PM2.5 

Concentrations Needed in 2015 to Reach Attainment of 24-Hour 

Standard 

Site 2013 

Measured Actuals 

2014 

Estimated 

2015 

Max Allowable for 

Attainment 

Stockton-Hazelton 56.3 44.5 95.4 

Manteca 40.2 40.0 116.0 

Modesto 56.4 49.5 90.3 

Turlock 55.4 51.0 89.8 

Merced-M* 67.3 57.2 71.7 

Merced-Coffee 42.3 43.9 110.0 

Madera-City 54.6 56.1 85.5 

Clovis 56.2 59.0 81.0 

Fresno-Garland 63.8 65.5 66.9 

Fresno-Winery* 71.6 71.6 53.0 

Tranquility 35.7 31.2 129.3 

Corcoran* 66.0 71.0 59.2 

Hanford 67.6 82.0 46.6 

Visalia-Church 62.5 74.0 59.7 

Bakersfield-California 71.8 80.0 44.4 

Bakersfield-Planz* 96.7 83.6 15.9 

*Calculated using 4th Quarter 2013 PM2.5 Data, 2014 4th Quarter filter data unavailable at this time. 

All other sites used 2014 AQS data when available, preliminary data was used for the remainder of the year.

 
San Joaquin Valley Unified Air Pollution Control District April 16, 2015

4-6 Chapter 4: Classification and Attainment 

2015 Plan for the 1997 PM2.5 Standard 

4.1.2 All Requirements and Commitments in the Implementation Plan Have Been 

Met 

As detailed in Chapter 6, the District has met or exceeded all requirements contained in 

the 2008 PM2.5 Plan and the emissions reductions achieved exceed the emission 

reduction commitments in the plan. 

ARB has also met or exceeded all requirements and emission reduction commitments 

contained in the 2008 PM2.5 Plan, and a detailed description will be included in ARB’s 

supporting documentation for the plan’s adoption by ARB, scheduled in May. 

4.1.3 The 2015 PM2.5 Plan Contains Best Available Control Measures (BACM) 

Chapter 5 and Appendix C contain detailed analyses of all potential measures for all 

source categories consistent with federal guidance and past precedents. Going beyond 

applicable federal requirements, this analysis even examined the application of BACM 

to source categories that were found to be below federal de minimis thresholds. This 

analysis indicates that the District meets or exceeds BACM requirements for all source 

categories. 

4.1.4 The 2015 PM2.5 Plan Contains Most Stringent Measures (MSM) 

Chapter 5 and Appendix C contain detailed analyses of all potential measures for all 

source categories consistent with federal guidance and past precedents. Going beyond 

applicable federal requirements, this analysis even examined the application of MSM to 

source categories that were found to be below federal de minimis thresholds. This 

analysis indicates that the District meet or exceeds MSM requirements for all source 

categories. 

4.1.5 The 2015 PM2.5 Plan Includes a Demonstration of Attainment by the Most 

Expeditious Alternative Date Practicable 

Attaining federal health-based air quality standards is an important milestone for 

improving public health. As detailed in Appendix F, this 2015 PM2.5 Plan demonstrates 

that the Valley will attain the federal 1997 PM2.5 standard as expeditiously as possible, 

with all feasible measures and strategies being implemented to accomplish this goal. 

Through ongoing implementation of the control strategy contained in the 2015 PM2.5 

Plan, the Valley will come into attainment of the 24-hour standard by 2018, and the 

annual standard by 2020. 

The Role of NOx Reductions in Assisting Valley Reach Attainment

Given the significant contribution of ammonium nitrate to the Valley’s PM2.5 

concentrations, reductions in NOx emissions are particularly important. To achieve the 

NOx reductions critical for reaching attainment in the Valley, ARB has adopted 

regulations that will significantly reduce NOx emissions from various mobile sources. 

Achieving this level of emissions reductions requires adequate time and carries a 

tremendous cost. 
San Joaquin Valley Unified Air Pollution Control District April 16, 2015

4-7 Chapter 4: Classification and Attainment 

2015 Plan for the 1997 PM2.5 Standard 

The District’s “no stone unturned” evaluation of emissions sources and emissions 

controls demonstrate that the most stringent measures, which includes all reasonably 

available emission reduction opportunities and best available control measures, are in 

place in the Valley. 

The attainment demonstration for this 2015 PM2.5 Plan includes the benefits of ARB 

and District control programs that provide ongoing emission reductions. Continued 

implementation of these control programs provides new emission reductions each year, 

resulting in a forecasted 38 percent decrease in NOx emissions and a five percent 

decrease in PM2.5 emissions between 2012 and 2020. 

The NOx reductions result from ongoing implementation of both new vehicle standards 

for passenger and heavy-duty diesel vehicles and equipment, as well as rules 

accelerating the turnover of legacy diesel fleets. Implementation of stringent 

requirements for new off-road engines and in-use off road equipment lead to further 

NOx reductions, along with District rules addressing stationary source NOx emissions. 

PM2.5 emission reductions result from ongoing implementation of diesel on- and offroad equipment measures as well as the District’s recently strengthened rule for woodburning fireplaces and heaters. 

Attainment Demonstration Modeling 

The attainment demonstration approach for this 2015 PM2.5 Plan is based on modeling 

conducted for the 2008 PM2.5 Plan, which also addressed the 1997 annual and 24-hour 

PM2.5 standards. The atmospheric dynamics and associated response to emission 

reductions represented in this modeling, coupled with 2013 design values (DV) and 

chemical composition, was used to project future (2020 for the annual standard and 

2018 for the 24-hour standard) design values. 

To assess the representativeness of the 2008 SIP modeling for capturing the dynamics 

and response to emission reductions for the updated attainment demonstration, ARB 

evaluated both the meteorological characteristics, as well as the chemical composition 

used in the two modeling efforts and found that they are very similar. Therefore, the 

2008 PM2.5 SIP modeling response to emission reduction, applied to 2013 DVs, 

provides a suitable basis for the updated attainment demonstration. 

To ensure consistency with the approved 2008 PM2.5 SIP modeling, the current effort 

uses a single DV representing 2013 based on ambient measurements during 2011-

2013. The base emission year is the middle year of 2012, with future emission years of 

2020 for the annual standard attainment demonstration, and 2018 for the 24-hour 

standard demonstration. 

Due to the differences in base years (2005 for the 2008 PM2.5 Plan vs. 2012 for the 

2015 PM2.5 Plan) and future years (2014 vs. 2018 or 2020), the RRFs calculated for 

the 2008 modeling cannot be used directly in the current Plan. Thus, the updated 

modeling uses scaled RRFs presented in the following equation. 
San Joaquin Valley Unified Air Pollution Control District April 16, 2015

4-8 Chapter 4: Classification and Attainment 

2015 Plan for the 1997 PM2.5 Standard 

ܴܴܨଵଶିଶ଴ ൌ ൤1 െ ሺ1 െ ܴܴܨ଴ହିଵସሻ ൈ

%∆ܧଵଶିଶ଴

%∆ܧ଴ହିଵସ

൨

Here, 

%∆ܧଵଶିଶ଴ ൌ 	

ܧଵଶ െ ܧଶ଴

ଵଶܧ

ൈ 100%	ܽ݊݀	%∆ܧ଴ହିଵସ ൌ 	

ܧ଴ହ െ ܧଵସ

ହ଴ܧ

ൈ 100%,

where, Ej is the total emissions for a given emissions component for year j ( = 2005, 

2012, 2014, and 2020). That is, quantities in the above equation represent percent 

emissions changes for the current and 2008 Plans. Similarly, RRFi-k represents RRF 

values for the current (2012-2020) and 2008 Plans (2005-2014). 

Modeling Results 

Eight of the fifteen sites in the Valley recorded 2013 DVs over the annual PM2.5 standard 

of 15 μg/m3. The higher DVs occurred in the Valley’s southern region (including the 

Bakersfield and Visalia as well as Hanford) and the central region (around the Fresno 

urban area and Madera). Only one site in the northern region (Turlock) measured a 

2013 DV over the standard. All sites in the SJV recorded 2013 DVs at or below the 24-

hour standard of 65 μg/m3. In 2020, all sites in the Valley are projected to attain the

annual standard. For those sites that exceeded the standard, the projected 2020 DVs 

range from 12.5 μg/m3

 to 15.0 μg/m3. 

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San Joaquin Valley Unified Air Pollution Control District 

4-9 Chapter 4: Class

2015 Plan for 

Table 4-3 Projected 2020 Annual and 2018 24-hour Design Values

Monitoring Site AQS Site ID Type Speciation 2013 Ann. DV1 2020 Ann. DV with Rules1 2

Bakersfield - California Street 060290014 FRM Bakersfield- California 16.4 13.7 Bakersfield - 410 E Planz 060290016 FRM Bakersfield- California 17.03 14.3 Clovis - N Villa Avenue 060195001 FRM Fresno-1st 16.44 13.3 Fresno - 1st Street/Garland5 FRM Fresno-1st 15.45 12.5 Fresno - Hamilton and Winery 060195025 FRM Fresno-1st 14.7 12.0 Hanford-S Irwin Street 060311004 FEM-BAM Visalia - N Church 17.0 13.9 Madera 060392010 FEM-BAM Fresno-1st 18.1 15.0 Manteca-530 Fishback Rd 060772010 FEM-BAM Modesto 14th 10.2 8.7 Merced - 2334 M Street 060472510 FRM Modesto 14th 11.1 9.2 Merced – S Coffee Ave 060470003 FEM Modesto 14th 13.3 11.0 Modesto - 14th Street 060990005 FRM Modesto 14th 13.6 11.5 Stockton - Hazelton Street 060771002 FRM Modesto 14th 13.8 12.0 Tranquility 060192009 FEM-BAM Fresno-1st 7.9 6.6 Turlock-S Minaret Street 060990006 FEM-BAM Modesto 14th 15.7 13.2 Visalia - N Church Street 061072002 FRM Visalia - N Church 16.6 13.5 

1. Design values equal to or less than 15.0 μg/m3 attain the annual PM2.5 standard 

2. Design values equal to or less than 65.4 μg/m3 attain the 24-hour PM2.5 standard 

3. Does not include 167.3 μg/m3 measured on May 05, 2013 (supporting documentation provided in Attachment B) 

4. Clovis 2013 DV is based on combined FRM/FEM BAM data 5. 2013 DV is based on 2011 data for Fresno-1st (060190011) and 2012/2013 data for Fresno-Garland (060190008)
San Joaquin Valley Unified Air Pollution Control District April 16, 2015

4-10 Chapter 4: Classification and Attainment 

2015 Plan for the 1997 PM2.5 Standard 

4.2 COMMITMENT TO ACHIEVE EXTRA REDUCTIONS IN EMISSIONS 

As discussed earlier, the 2015 PM2.5 Plan contains Most Stringent Measures, Best 

Available Control Measures, and ensures expeditious attainment. However, the District 

and the California Air Resources Board are committed to leaving no stone unturned to 

ensure attainment of this important health-based standard as rapidly as possible. 

Towards that end, this plan contains commitments for the following additional reductions 

in emissions: 

1. Replace Heavy Duty Trucks – Using motor vehicle surcharge funds generated 

by the District under AB 2522, the District commits to allocating $10,000,000, for 

the period of 2016 through 2020. These funds will be used towards the 

replacement of heavy duty trucks in the San Joaquin Valley through the District’s 

truck replacement incentive program, achieving emissions reductions surplus to 

the State Truck and Bus Regulation. 

a. Amount of Funding: $10,000,000; for period of 2016 through 2020 

b. Number of Trucks Replaced: 152 - 200 

c. Surplus Emissions Reductions Achieved: 0.25 – 0.33 tons NOx/day

2. Replace Residential Wood burning Devices – Through the use of locallygenerated funding, the District commits to allocating $7,500,000, for the period of 

2016 through 2020. These funds will be used towards the replacement of old 

high polluting residential wood burning devices in the San Joaquin Valley through 

the District’s Burn Cleaner Incentive Program, achieving emissions reductions 

surplus to District Rule 4901. 

a. Amount of Funding: $7,500,000; for period of 2016 through 2020 

b. Number of Devices Replaced: 4,000 – 7,500 

c. Surplus Emissions Reductions Achieved: 0.1 – 0.4 tons of PM2.5 per 

day 

3. ARB Commitments for Additional Reductions – In addition to the above 

commitments by the District for additional reductions in emissions, ARB has also 

committed to do their part by committing to provide additional reductions in 

emissions for sources under their control. ARB staff will propose a commitment 

on actions for key truck sectors in the Valley to: 

a. Better ensure benefits from the Truck and Bus regulation, and 

b. Pursue opportunities for the replacement of trucks certified to the State’s 

optional low NOx standard.