-- MARICOPA 

SSOClATlON of 

GOVERNMENTS 302 North 1st Avenue Su~te 300 A Phoen~x Ar~zona 85003 

Phone (6021 254-6300 A FAX I6021 254-6490 

E-mail: mag@mag. maricopa. gov A Web slte: w 

March 9, 20 I0 

Mr. Jared Blumenfeld 

Regional Administrator 

U.S. Environmental Protection Agency, Region IX 

75 Hawthorne Street 

San Francisco, California 94 105-390 1 

Dear Mr. Blumenfeld: 

On February 24, 20 10, the MAG Regional Council took action to forward the 2008 lmplem 

Status of Committed Measures in the MAG 2007 Five Percent Plan for PM- I0 for the Maricopa County 

Nonattainment Area to the Governor's Office, Arizona Legislature, Arizona Department of Environmental 

Quality, and the Environmental Protection Agency. In general, the implementation results for 2008 meet 

or exceed the commitments made to implement the measures in the Five Percent Plan for PM- 10. 

As required by the Clean Air Act, the MAG 2007 Five Percent Plan for PM- I0 was submitted to the 

Environmental Protection Agency by December 3 1 , 2007. The plan includes fifty-three committed 

measures that began implementation in 2008. Commitments to implement measures were received 

from the State, Maricopa County, and the twenty-three local governments in the PM- I0 nonattainment 

area. A report has been prepared on the implementation status of the committed measures in the plan 

for calendar year 2008 (see attachment). 

As the designated Regional Air Quality Planning Agency, the Maricopa Association of Governments will 

continue to track the implementation of the measures in the Five Percent Plan for PM- I0 as the region 

strives to attain the PM- I0 standard. If you have any questions, please do not hesitate to contact me at 

(602) 254-6300. 

Sincerely, 

3~~~~y ncLindy Bauer 

Environmental Director 

cc. Deborah Jordan, EPA Region IX 

Colleen McKaughan, EPA Region IX 

Ben Grumbles, Director, Arizona Department of Environmental Quality 

A Voluntary Association of Local Governments in Maricopa County 

C~ty of Apache Junctlon A C~ty of Avondale A Town of Buckeye A Town of Carefree A Town of Cave Creek A C~ty of Chandler A Clty of El M~rage A Fort McDowell Yavapai Nation A Town of Founta~n H~lls A Town of G~la Bend 

G~la River Indian Cornrnun~ty A Town of Gilbert A City of Glendale A C~ty of Goodyear A Town of Guadalupe A City of Litchf~eld Park A Mar~copa County A C~ty of Mesa A Town of Parad~se Valley A City of Peor~a A City of Phoen~x 

Town of Queen Creek A Salt Rlver P~ma-Mar~copa lnd~an Commun~ty A C~ty of Scottsdale A C~ty of Surpr~se A C~ty of Tempe A C~ty of Tolleson A Town of W~ckenburg A Town of Youngtown A Ar~zona Department of Transportat~on 
2008 IMPLEMENTATION STATUS OF COMMITTED MEASURES 

IN THE MAG 2007 FIVE PERCENT PLAN FOR PM-10 FOR THE 

MARICOPA COUNTY NONATTAINMENT AREA 

FEBRUARY 2010 

MARICOPA A ASSOCIATION of 

GOVERNMENTS 
2008 IMPLEMENTATION STATUS OF COMMITTED MEASURES 

IN 'THE MAG 2007 FIVE PERCENT PLAN FOR PM-10 FOR THE 

MARICOPA COUNTY NONATTAINMENT AREA 

The MAG 2007 Five Percent Plan for PM-10 for the Maricopa County Nonattainment Area 

was submitted to the Environmental Protection Agency (EPA) in December 2007. In order 

to reduce PM-10, a broad range of commitments to implement measures were received 

from the State, Maricopa County, and the twenty-three local governments in the PM-10 

nonattainment area. The plan includesfiftythree committed control measures which began 

implementation in 2008. The Maricopa Association of Governments is tracking the 

implementation of the measures in the plan. 

A tracking form was prepared to assist the implementing entities in reporting the progress 

made to implement measures for calendar year 2008. This tracking form was sent to MAG 

member agencies on March 12,2009. All completed tracking forms were received by July 

22, 2009. MAG has summarized the status of the implementation of the committed 

measures for calendar year 2008 in Table 1. Table 2 provides additional policies and 

actions initiated by the Maricopa County Air Quality Department in 2009. In general, the 

implementation results for 2008 meet or exceed the commitments made to implement a 

majority of the measures in the MAG Five Percent Plan for PM-10. 

Figure 1 illustrates the PM-10 emission reductions in 2010 for the committed control 

measures that were quantified for numeric credit to meet the five percent per year target 

and demonstrate attainment. Figure 2 provides the PM-10 emission reductions in 2010 

for the committed contingency measures that were quantified for numeric credit. In some 

cases, the emission reductions represent the impact of multiple, reinforcing measures. 

BACKGROUND INFORMATION 

In accordance with the Clean Air Act, the MAG 2007 Five Percent Plan for PM-10 was 

submitted to the Environmental Protection Agency by December 31,2007. The plan was 

required to reduce PM-10 emissions by five percent per year until the standard is met. In 

order to attain the standard, the region needs three years of clean data at the monitors 

(2008, 2009,2010). It is important to attain the PM-10 standard as quickly as possible or 

additional years of five percent reductions may need to be added to the plan. The 

Executive Summary for the MAG 2007 Five Percent Plan for PM-10 is attached. 

On May 23,2007, the MAG Regional Council approved additional items for the Suggested 

List of Measures to Reduce PM-10. One of the items was that each year, MAG would 

issue a report on the status of the implementation of the committed measures for this 

region by the cities, towns, Maricopa County and the State. The report would be made 

available to the Governor's Office, Legislature, Arizona Department of Environmental 

Quality and the Environmental Protection Agency. This report provides the implementation 

status of committed measures for calendar year 2008. 
The forms for tracking the implementation of committed measures were developed with 

input from the implementing entities. MAG conducted three workshops to discuss the 

tracking of the measures on December 18, 2007; September 23, 2008; and March 31, 

2009. The draft forms were also transmitted in October 2008 to give advance notice of the 

types of information that would be needed by MAG. 

Monitored exceedances of the 24-hour PM-10 standard have declined since 2006, as 

shown in Figure 3. There can be no more than three daily exceedances at any PM-10 

monitor over a three year period in order for the standard to be met. The measures 

described in this tracking report will be important in reducing PM-10 emissions, to enable 

the region to meet the standard by 201 0. MAG will continue to monitor the implementation 

status of the measures, as well as monitor PM-10 concentrations. 

IMPLEMENTING 

ENTITY 

County 

County 

State, 

County 

County 

COMMITTED MEASURE 

IN THE MAG 2007 FNE PERCENT PLAN FOR PM-I0 

3. Dust Managers required at construction sites of 50 

acres and greater. 

Quantified for numeric credit to meet the five percent 

per year target and demonstrate attainment. 

4. Dedicated enforcement coordinator for unpaved 

roads, unpaved parking, and vacant lots. 

5. Establish a certification program for Dust Free 

Developments to serve as an industry standard. 

Quantified for numeric credit as a contingency measure. 

6. Better defined tarping requirements in Rule 310 to 

include enclosure of the bed. 

? 1 

2008 IMPLEMENTATION STATUS 

Dust managers required by SB 1552. (A.R.S. 3 49-474.05 A. & E.) 

In March 2008, Maricopa County adopted Rule 310 and Rule 316 revisions in 

regard to dust managers. 

Maricopa County assigned a supervisor to oversee the vacant lot program. 

SB 1552 required ADEQ to establish a certification program. 

(A.R.S. 3 49-457.02 A.) 

This measure was not implemented because ADEQ delayed the certification 

program indefinitely due to budgetary constraints. 

Maricopa County will support ADEQ's efforts (when ADEQ's budgetary 

constraints are lifted) to develop a program to certify and publicize companies 

that routinely demonstrate exceptional efforts to reduce airborne dust. 

As the regulatory authority, Maricopa County will provide verifications of 

eligible companies as necessary to implement this program and as requested 

by ADEQ. 

In March 2008, Maricopa County adopted Rule 310 and Rule 310.01 revisions 

in regard to tarping. 

Maricopa County changed the requirements regarding loading haul trucks 

(i.e., load all haul trucks such that at no time shall the highest point of the bulk 

material be higher than the sides, front, and back of the cargo container area). 
IMPLEMENTING 

ENTITY 

County 

County 

COMMITTED MEASURE 

IN THE MAG 2007 FIVE PERCENT PLAN FOR PM-10 

7. Conduct mobile monitoring to measure PM-10 and 

issue NOVs. 

8. Conduct nighttime and weekend consistent 

inspections. 

Q~~~~~~~~~ fornumeric credit to meet the five percent 

per year target and demonstrate attainment. 

20d8 IMPLEMENTATION STATUS 

In December 2008, Maricopa County filled 1 chemical engineering position for the 

mobile monitoring program. 

In February 2009, the mobile monitoring van was delivered to Maricopa County. 

Although Maricopa County conducted nighttime and weekend inspections during 

2008, the program was not fully implemented, as the department was focused on 

hiring and training additional staff. 

Nighttime and weekend inspections conducted in 2008 included complaint 

inspections and targeted inspections of specific industries that operate at night 

and on weekends. 

In 2009, Maricopa County initiated a pilot nighttime and weekend inspection 

program. Following the pilot program, the County initiated a cross-training 

program for all inspectors to better utilize their abilities to deal with all 

circumstances and source types they may encounter. 

9. Increase consistent inspection frequency for 

permitted sources. 

Quantified for numeric credit to meet the five percent 

per year target and demonstrate attainment. 

In March 2008, Maricopa County adopted Rule 280 revisions in regard to 

inspection frequency. 

Maricopa County hired 32 inspectors, 13 administrative and permit technicians, 6 

inspector supervisors, and 4 administrative supervisors for the Dust Control 

Compliance Program. 

Maricopa County issued 4,355 permits for dust control sources (Rule 310). 

Maricopa County conducted 12,303 inspections of dust control permitted sources 

(Rule 31 0). 

Maricopa County hired 5 inspectors for nonmetallic mineral processing facilities 

(Rule 316). These 5 inspector positions are included in the 32 inspector positions 

mentioned above. 

Maricopa County issued 11 7 permits for nonmetallic processing facilities (Rule 

316). 

Maricopa County conducted 443 inspections of nonmetallic mineral processing 

facilities (Rule 316). 

County 
IMPLEMENTING 

ENTITY 

County 

County 

County 

COMMITTED MEASURE 

IN THE MAG 2007 FIVE PERCENT PLAN FOR PM-10 

10. Increase number of proactive consistent inspections 

in areas of highest PM-10 emissions densities. 

Quantified for numeric credit to meet the five percent 

per year target and demonstrate attainment. 

11. Notify violators more rapidly to 

promote immediate compliance. 

12. Provide timely notification regarding 

high pollution days. 

2008 IMPLEMENTATION STATUS 

Maricopa County conducted monitor surveillance on six days. 

Maricopa County Air Quality Department (MCAQD) continued the standard 

practice of dust compliance inspectors who observe potential violations 

making reasonable efforts to inform a person on-site or call the permit holder 

so that measures can be taken to prevent, reduce, or mitigate dust generation 

before a violation occurs. 

Maricopa County sent 1 ,I 54,570 text alerts and messages to subscribers for 

high pollution advisories (HPAs) and health watches. 

Since August 2008, Maricopa County sent 25 emails and 77 text messages to 

4,870 subscribers. 

Maricopa County posted news articles, related to particulate matter HPAs and 

health watches, on its website. 

Maricopa County website visits: 20,727 unique visitors; 

average pages visited = 3.24; average time spent = 2.22 minutes. 
IMPLEMENTING 

ENTITY 

County 

County 

City of Apache 

Junction 

County 

COMMITTED MEASURE 

IN THE MAG 2007 FIVE PERCENT PLAN FOR PM-10 

13. Develop a program for subcontractors. 

14. Reduce dragout and trackout emissions from 

nonpermitted sources. 

Quantified for numeric credit as a contingency measure. 

15. Cover loadslhaul trucks in Apache Junction. 

Quantified for numeric credit as a contingency measure. 

16. Require dust coordinators at earthmoving sites of 

5-50 acres. 

Quantified for numeric credit to meet the five percent 

per year target and demonstrate attainment. 

2008 IMPLEMENTATION STATUS 

Subcontractor program required by SB 1552. 

(A.R.S. 5 49-474.06 A.) 

In March 2008, Maricopa County adopted Rule 200 and Rule 280 revisions in 

regard to the subcontractor registration program. 

Maricopa County hired 4 permit technicians to administer the subcontractor 

registration program. These positions are included in the 55 positions noted in 

Committed Measure #9. 

Maricopa County registered 4,882 subcontractors. 

In March 2008, Maricopa County adopted Rule 310.01 revisions in regard to 

dragout and trackout. 

Maricopa County added the requirement to install a trackout control device to 

sections covering unpaved parking lots and off-site hauling of bulk materials 

by livestock operations. Also, in Rule 310.01, Maricopa County added the 

definitions of "trackoutlcarryout" and "trackout control device". 

In early 2008, the City of Apache Junction adopted an ordinance to cover 

loadslhaul trucks. 

Dust coordinator required by SB 1552. 

(A.R.S. 5 49-474.05 A. & E.) 

In March 2008, Maricopa County adopted Rule 310 and Rule 316 revisions in 

regard to dust coordinators. 
IMPLEMENTING 

ENTITY 

County 

County 

County, 

local governments 

State 

COMMITTED MEASURE 

IN THE MAG 2007 FIVE PERCENT PLAN FOR PM-10 

36. Require barriers in addition to Rule 310 stabilization 

requirements for construction where all activity has 

ceased, except for sites in compliance with storm 

water permits. 

Quantified for numeric credit to meet the five percent 

per year target and demonstrate attainment. 

37. Reduce the tolerance of trackout to 25 feet before 

immediate cleanup is required for construction sites 

be placed in Maricopa County Rule 310. 

Quantified for numeric credit to meet the five percent 

per year target and demonstrate attainment. 

38. No visible emissions across the property line be 

placed in Maricopa County Rule 310 and 310.01, and 

in local ordinances for nonpermitted sources 

appropriate. 

Quantified for numeric credit to meet the five percent 

per year target and demonstrate attainment. 

49. Allow Peace Officer enforcement of load covering. 

2008 IMPLEMENTATION STATUS 

In March 2008, Maricopa County adopted Rule 310 revisions in regard to 

barriers. 

Maricopa County revised long-term stabilization control measures to reduce 

the period of inactivity to 30 days and added the requirement for barriers, if 

water is chosen as the control option. 

In March 2008, Maricopa County adopted Rule 31 0 revisions in regard to the 

trackout requirements by reducing the toleration of trackout to 25 feet before 

cleanup is required. 

In March 2008, Maricopa County adopted Rule 31 0 and Rule 31 0.01 revisions 

in regard to visible emissions. 

One local government adopted an ordinance that restricts visible emissions 

from crossing property lines. 

SB 1552 amended existing state law to require that for the purpose of 

highway safety or air pollution prevention, a person shall not drive or 

move a vehicle on a highway unless the vehicle is constructed or loaded in a 

manner to prevent any of its load from dropping, sifting, leaking or otherwise 

escaping from the vehicle. 

(A.R.S. 5 28-1098 A. - C.) 
IMPLEMENTING 

ENTITY 

County 

State, 

County 

County, 

local governments 

COMMITTED MEASURE 

IN THE MAG 2007 FIVE PERCENT PLAN FOR PM-10 

Industry 

17. Fully implement Rule 316. 

Quantified for numeric credit as a contingency measure. 

39. Modeling cumulative impacts - The measure would 

need further definition by Maricopa County and the 

Arizona Department of Environmental Quality and 

be subject to input to ensure that unintended 

consequences for temporary uses are not created. 

Nonroad Activities 

18. Ban or discourage use of leaf blowers on high 

pollution advisory days. 

-- 

2008 IMPLEMENTATION STATUS 

The Rule 316 litigation was settled on June 20, 2007. As a result, the June 8, 

2005, version of Rule 316 was in place as of the settlement date. Maricopa 

County is enforcing the provision of Rule 316 for nonmetallic mineral 

processing sources of PM-10. 

Maricopa County and the Arizona Department of Environmental Quality have 

prepared a draft cumulative air quality modeling policy and guidance. The 

draft is undergoing internal and management review at the Maricopa County 

Air Quality Department. 

It is important to note that no emission reduction credit was quantified for this 

measure in the Five Percent Plan. 

Program to ban or discourage leaf blowers required by SB 1552. 

(A.R.S. 5 9-50OS04A.5.(a). andA.R.S. 5 11-877A.1.) 

Maricopa County and 22 local governments have implemented programs that 

restrict or prohibit the use of leaf blowers on high pollution advisory days. 
IMPLEMENTING 

ENTITY 

County, 

State, 

local governments, 

private sector 

COMMITTED MEASURE 

IN THE MAG 2007 FIVE PERCENT PLAN FOR PM-10 

19. Reduce off-road vehicle use In areas with high 

off-road vehicle activity impoundment or 

confiscation of vehicles for repeat violations. 

Quantified for numeric credit as a contingency measure. 

2008 JMPLEMENTATION STATUS 

Ordinance to prohibit off-road vehicle use required by SB 1552. 

(A.R.S. 5 9-500.27 A.- E. and A.R.S. § 49-457.03) 

In February 2008, Maricopa County adopted the P-28 Off-Road Vehicle Use 

in Unincorporated Areas of Maricopa County Ordinance. This ordinance was 

developed to address dust concerns raised by vehicle use and trespass on 

private and public property. It is intended to complement Maricopa County 

Rule 310.01, which focuses on property owners' responsibility to maintain soil 

stabilization. 

Currently, the Maricopa County Ordinance P-28 is undergoing revisions to its 

penalty structure, which is intended to provide more flexibility in adjudicating 

cases. Until these revisions are approved, the County is developing 

information on frequent complaint areas and access points, enforcement 

history, ongoing outreach efforts by police departments, Justice Court 

procedures, and database needs. In addition to responding to complainants' 

concerns, MCAQD has organized a group of inspectors to gather this type of 

information and begin making direct contacts in the field. In 2009, MCAQD 

initiated efforts to develop a partnership with law enforcement agencies, not 

only to address the inspectors' limited authority on these contacts, but also to 

provide a consistent enforcement message to the public. 

23 local governments have new or existing ordinances to prevent or 

discourage off-road vehicle use and restrict access to areas with high off-road 

vehicle use. 

ADEQ distributed 3,700 hard copies of "Nature Rules" map to off-road 

highway vehicle (OHV) dealers and posted materials on the Arizona State 

Parks website (website received I 1,660 visits), ADEQ's website (website 

received 2,741 visits), and the Arizona Game and Fish Department website. 
IMPLEMENTING 

ENTITY 

County, 

State, 

local governments, 

private sector 

COMMITTED MEASURE 

IN THE MAG 2007 FIVE PERCENT PLAN FOR PM-10 

19. Reduce off-road vehicle use in areas with high 

off-road vehicle activity impoundment or 

confiscation of vehicles for repeat violations 

- CONTINUED. 

2008 IMPLEMENTATION STATUS 

Maricopa County, 17 local governments, and ADEQ, have conducted public 

education and outreach to discourage off-road vehicle use in the PM-10 

nonattainment area. 

The Tonto National Forest included a segment on dust control education in its 

off-highway vehicle (OHV) training program. 

8 jurisdictions with high off-road activity have restricted vehicle use by 

installing signs andlor physical barriers. 

One local government stabilized 57 acres with hydroseed and posted "No 

Trespassing" signs on 4.1 miles of vacant areas in two washes. 

Arizona State Trust Land spent $1 59,203 to implement the following control 

measures: installation of 1,037 linear feet of concrete barriers; installation of 

7,352 linear feet of chain link fence; purchase of 300 "No Trespassing" signs; 

purchase and installation of two 10-foot gates; posting of 38 "Area Closed 

by Commissioners Orders" signs; posting of 2 'Closed for Soil Stabilization" 

signs; posting of 14 "No Trespassing" signs; and increasing the presence of 

law enforcement. 

Arizona State Parks installed one kiosk and two access gates; replaced 1 mile 

of fencing; provided outreach at 77 official events; and provided 3,100 public 

information contacts. 

Arizona Game and Fish Department issued 27 citations for violations of the 

OHV law. 
IMPLEMENTING 

ENTITY 

State 

COMMITTED MEASURE 

IN THE MAG 2007 FIVE PERCENT PLAN FOR PM-I0 

20. Provide incentives to retrofit nonroad diesel engines 

and encourage early re~lacementswith advanced 

technologies. 

2008 IMPLEMENTATION STATUS 

In 2007, the Arizona Legislature adopted Senate Bill 1552 which included a 

voluntary diesel equipment retrofit program. (A.R.S. § 49-474.07 A. - D.) 

According to A.R.S. § 49-474.07 A., a County with a population of more than 

four hundred thousand persons shall operate and administer a voluntary 

diesel emissions retrofit program in the county for the purpose of reducing 

particulate emissions from diesel equipment. The program shall provide for 

real and quantifiable emissions reductions based on actual emissions 

reductions by an amount greater than that already required by applicable law, 

rule, permit or order and computed based on the percentage emissions 

reductions from the testing of the diesel retrofit equipment prescribed in 

Subsection C as applied to the rated emissions of the engine and using the 

standard operating hours of the equipment. 

Maricopa County Air Quality Department (MCAQD) has indicated that A.R.S. 

§ 49-474.07 did not establish a fund to provide incentives to retrofit nonroad 

engines, but rather established provisions applicable to permitted stationary 

source diesel powered equipment. Under the provisions of ARS 49-474.07, 

the permittee may retain one-half of the particulate emissions reductions from 

retrofit of diesel equipment operated at the permitted site for purposes of 

receiving a permit modification or a new permit provision that allows for 

extended hours of operation for the permitted equipment. The provisions of 

ARS § 49-747.07 are undergoing legal review and analysis during the current 

statewide new source review rulemaking, and if implemented, will require 

revision of MCAQD's stationary source permitting program and applicable 

rules. However, this review and analysis has no bearing on the Five Percent 

Plan or on Committed Measure #20. 

It is important to note that no emission reduction credit was quantified for this 

measure in the Five Percent Plan. 
IMPLEMENTING 

ENTITY 

County, 

local governments 

State, 

private sector 

COMMITTED MEASURE 

IN THE MAG 2007 FIVE PERCENT PLAN FOR PM-10 

21. Ban leaf blowers from blowing debris into streets. 

Quantified for numeric credit to meet the five percent 

per year target and demonstrate attainment. 

22. Implement a leaf blower outreach program. 

Quantified for numeric credit to meet the five percent 

per year target and demonstrate attainment. 

2008 IMPLEMENTATION STATUS 

Ordinance required by SB 1552. 

(A.R.S. § 9-500.04 A.5.(b)., A.R.S. § 11 -877 A.2., and A.R.S. 49-457.01 B.) 

Maricopa County adopted the P-25 Leaf Blower Restriction Ordinance to ban 

leaf blowers from blowing debris into streets in Maricopa County. In addition, 

23 local governments have new or existing ordinances to ban leaf blowers 

from blowing debris into streets. 

Leaf blower outreach program required by SB 1552. 

(A.R.S. 5j 49-457.01 D., E. and F.) 

ADEQ produced and distributed 8,000 hard copies of leaf blower fact sheets 

to six retail leaf blower outlets. 

ADEQ distributed warning signs for posting on HPA days to leaf blower rental 

outlets. 

ADEQ authored an article about the unsafe use of leaf blowers that was 

published in the Arizona Landscape Contractors Association's (ALCA) 

Influence magazine. A public-awareness advertisement was published in the 

ALCA lnfluence and Southwest Horticulture. 

ADEQ's leaf blower outreach materials, which were posted on the agency's 

website, received a total of 11,491 visits. ADEQ adapted and posted a leaf 

blower training manual, provided by the Outdoor Power Equipment Institute, 

on ADEQ's website. Those materials received 1,659 unique visits. 

A number of cities and towns also conduct leaf blower outreach as part of the 

efforts reported in Committed Measure #I. 
IMPLEMENTING 

ENTITY 

State 

County 

State 

COMMITTED MEASURE 

IN THE MAG 2007 FIVE PERCENT PLAN FOR PM-10 

23. Ban ATV use on high pollution days. 

Quantified for numeric credit to meet the five percent 

per year target and demonstrate attainment. 

45. Prohibit use of leaf blowers on unstabilized surfaces. 

Quantified for numeric credit to meet the five percent 

per year target and demonstrate attainment. 

46. Outreach to off-road vehicle purchasers. 

2008 IMPLEMENTATION STATUS 

All terrain vehicle (ATV) ban required by SB 1552. (A.R.S. 9 49-457.03) 

ADEQ distributed HPA forecasts to subscribers and to the U.S. Forest 

Service, U.S. Bureau of Land Management, Arizona State Land Department, 

Arizona Game and Fish Department, Arizona State Parks Department, and 

the Maricopa County Air Quality Department. ADEQ also posted HPA 

forecasts and warnings on the agency's website and works with television 

broadcast stations to communicate HPA notices to the public. 

On February 27, 2009, Fox Motorsports filmed a half-hour program focused 

on off-highway vehicle (OHV) use and the 5% Plan requirements on High 

Pollution Advisory Days. Representatives of ADEQ, MCAQD, Arizona Game 

and Fish, Arizona State Lands, U.S. Bureau of Land Management and the 

Arizona Rock Products Association were filmed near the Hassayampa River 

for this program. Broadcast date has not yet been scheduled. 

ADEQ: "Law enforcement officers who are authorized under Title 28 will 

enforce this requirement. On Federal Lands, the Federal agency with 

jurisdiction enforces it". 

Ordinance required by SB 1552. 

(A.R.S. 9 11-877A.3. and A.R.S. 9 49-457.01 C.) 

Maricopa County adopted an ordinance to prohibit use of leaf blowers on 

unstabilized surfaces. In addition, a local government, although not required, 

adopted this ordinance. 

The Arizona State Parks Department has convened a Dealer Pilot Program 

Committee to develop printed dust abatement educational materials for offroad vehicle renterslpurchasers. ADEQ participates in these committee 

meetings. 
IMPLEMENTING 

ENTITY 

State, 

County, 

local governments 

State 

State 

COMMITTED MEASURE 

IN THE MAG 2007 FIVE PERCENT PLAN FOR PM-10 

Paved Roads 

24. Sweep street with PM-10 certified street sweepers. 

Quantified for numeric credit as a contingency measure. 

52. Coordinate public transit services with Pinal County. 

53. Repave or overlay paved roads with rubberized 

asphalt. 

Quantified for numeric credit to meet the five percent 

per year target and demonstrate attainment. 

2008 IMPLEMENTATION STATUS 

SB 1552 requires that new or renewed contracts for street sweeping on city 

streets must be conducted with PM-10 certified street sweepers. 

g-500,04 A.9. and 49-474.01 A.8.) 

The 3 local governments that issue street sweeping contracts require that 

their contractors use PM-10 certified street sweepers. 

Local governments purchased 8 PM-10 certified street sweepers with CMAQ 

funds and 3 PM-10 certified street sweepers with other funds. 

ADOT's current contract for sweeping State Highways does not require use of 

PM-10 certified street sweepers (one street sweeper is not PM-10 certified). 

However, when the ADOT street sweeping contract is renewed, the contract 

will be revised to require that only PM-10 certified street sweepers are to be 

used. 

ADOT has coordinated public transit services with Pinal County. See the 

following websites for information regarding this coordination: 

(1) Arizona Rural Transit Needs Study Final Report - May 2008 

(http://mpd.azdot.gov/transiffdocumentslRural~Transit~Needs~Study~Final~Repo~~ 

May-2008.pdf) 

(2) Maricopa 531 1 information 

(http:llmpd.azdot.govltransiVMaricopa.asp). 

ADOT repaved 12.5 miles of State Highways with rubberized asphalt 

pavement (7.29 miles more than the commitment). 
IMPLEMENTING 

ENTITY 

County, 

local governments 

COMMITTED MEASURE 

IN THE MAG 2007 FIVE PERCENT PLAN FOR PM-10 

Unpaved Parking Lots 

25. Pave or stabilize existing unpaved parking lots. 

Quantified for numeric credit to meet the five percent 

per year target and demonstrate attainment. 

2008 IMPLEMENTATION STATUS 

Ordinance required by SB 1552. 

(A.R.S. 5 9-500.04 A.6. & A.7. and A.R.S. 5 49-474.01 A.5. & A.6.) 

Maricopa County revised parking lot provisions in Rule 310.01 (Fugitive Dust 

from Non-traditional Sources of Fugitive Dust) to synchronize with SB 1552 

requirements. These rule revisions were adopted in March 2008. 

23 local governments have new or existing ordinances to require paving or 

stabilizing existing unpaved parking lots. 

212 Maricopa County and local government staff are enforcing the 

ordinances. 

Maricopa County performed 186 inspections of unpaved parking lots. 

One local government: Paved 39,446 square yards of unpaved parking lots with AC pavement; 

Stabilized 45,496 square yards of unpaved parking lots with turf; and 

Stabilized 51,524 square yards of unpaved parking lots with a polymer 

stabilizer. 

One local government pavedlstabilized eight existing town-owned unpaved 

parking lots with a total surface area of 340,365 square feet. 
IMPLEMENTING 

ENTITY 

Count local gover);ments 

CounX, local gover ments 

COMMllTED MEASURE 

IN THE MAG 2007 FIVE PERCENT PLAN FOR PM-10 

Unpaved Roads, Alleys, and Shoulders 

26. Pave or stabilize existing public dirt roads and alleys. 

Quantified for numeric credit as a contingency measure. 

27. Limit speeds to 15 miles per hour 

on high traffic dirt roads. 

Quantified numeric credit as a contingency nleasure. 

2008 IMPLEMENTATION STATUS 

Plan requirements for paving or stabilizing public dirt roads and alleys were 

amended by SB 1552. (A.R.S. 39-500.04 A.3. and A.R.S. 549-474.01 A.4.) 

In March 2008, Maricopa County adopted Rule 310.01 revisions in regard to 

unpaved roads and alleys. 

Maricopa County and 19 local governments have developed or updated plans to 

pave or stabilize targeted public dirt roads and alleys. 

Maricopa County and local governments have implemented this measure for: 

Public Dirt Roads 

By paving 25.02 miles of public dirt roads (1 5.07 miles more than the 

commitments) and stabilizing 36.76 miles of public dirt roads (3.09 miles less 

than the commitments), with a total of 61.78 miles of public dirt roads paved or 

stabilized (1 1.98 miles more than the commitments). 

Dirt Alleys 

By paving 65.89 miles of dirt alleys (20.74 miles more than the commitments) and 

stabilizlng 175.71 miles of dirt alleys (69.36 miles more than the commitments) 

with a total of 241.60 miles of dirt alleys paved or stabilized (90.10 miles more 

than the commitments). 

One local government improved 7 intersections by paving turn lanes andlor 

shoulders. 

5 local governments have posted 26.30 miles of dirt roads and alleys with 15 mph 

(or less) speed limit signs (42.30 miles less than the commitments). 

Note: For Committed Measure #26, jurisdictions paved or stabilized 11.98 more 

miles of dirt roads and 90.10 more miles of dirt alleys than commitments in the 

MAG Five Percent Plan for PM-10. The PM-10 emission reductions attributable to 

paving and stabilizing 102 extra miles of dirt roads and alleys far exceed the 

benefit of posting lower speed limits on 42 miles of dirt roads and alleys. 

Several jurisdictions report that all high traffic dirt roads have been paved. 
IMPLEMENTING 

ENTITY 

County, 

State, local governments 

MAG, 

local governments 

local government 

COMMITTED MEASURE 

IN THE MAG 2007 FIVE PERCENT PLAN FOR PM-I0 

28. Pave or stabilize unpaved shoulders. 

Quantified for numeric credit to meet the five percent 

per year target and demonstrate attainment. 

43. MAG allocate $5 mlllion in FY 2007 MAG federal 

funds matched on a 50150 basis by MAG member 

agencies for paving dirt roads and shoulder projects 

and that these projects be immediately submitted to 

MAG for consideration at the July meetings of the 

MAG Management Committee and Regional Council 

for an amendment to the Transportatlon 

lmprovement Program. These funds would be on a 

nonsupplanting basis for new projects. 

Quantified for numeric credit as a contingency measure. 

51. Conduct an inventory of dirt roads, alleys and 

estimated traffic counts. 

2008 IMPLEMENTATION STATUS 

Plan requirements to pave or stabilize unpaved shoulders were amended by 

SB 1552. (A.R.S. 3 9-500.04 A.3. and A.R.S. 3 49-474.01 A.4.) 

Maricopa County and 19 local governments have developed or updated plans 

to pave or stabilize unpaved shoulders on targeted arterials. 

ADOT, Maricopa County, and local governments implemented this measure 

by paving 139.1 3 curb miles of dirt shoulders (107.63 curb miles more than 

the commitments) and stabilizing 272.81 curb miles of dirt shoulders (59.56 

curb miles more than the commitments), with a total of 41 1.94 curb miles of 

dirt shoulders paved or stabilized (167.19 curb miles more than the 

commitments). 

ADOT added 19.26 curb miles of curb and gutter. 

One local government improved 7 intersections by paving turn lanes andlor 

shoulders. 

$5 million is programmed in the FY 2007-201 1 MAG Transportation 

Improvement Program to fund 9 projects that pave dirt roads and shoulders 

in the PM-~ 0 nonattainment area. 

The City of El Mirage developed a preliminary inventory of unpaved roads in 

its jurisdiction. In addition, other local governments, although not required, 

developed preliminary inventories of their unpaved roads. 
IMPLEMENTING 

ENTITY 

County 

MAG member 

agencies 

County 

County, 

local governments 

COMMITTED MEASURE 

IN THE MAG 2007 FIVE PERCENT PLAN FOR PM-10 

Unpaved Surfaces 

29. Create a fund for paving and stabilizing in high 

pollution areas. 

40. MAG member agencies reexamine existing 

ordinances to ensure that nonpermitted sources, 

such as unpaved parking, unpaved staging areas, 

unpaved roads, unpaved shoulders, vacant lots and 

open areas, receive priority attention. 

Vacant Lots 

30. Strengthen and increase enforcement of 310.01 for 

vacant lots. 

Quantified for numeric credit to meet the five percent 

per year target and demonstrate attainment. 

31. Restrict vehicular use and parking on vacant lots. 

Quantified for numeric credit to meet the five percent 

per year target and demonstrate attainment. 

2008 IMPLEMENTATION STATUS 

Four of Maricopa County's settlement agreements for air quality violations 

included supplemental environmental projects. 

One local government re-examined existing ordinances to ensure 

non-permitted sources received priority attention. 

Maricopa County hired a supervisor to oversee the vacant lot program. This 

staff position was also included in the data provided for Committed Measures 

#4 and #9. 

Maricopa County conducted 5,005 vacant lot inspections. 

Ordinance required by SB 1552. 

(A.R.S. fj 9-500.04 A.8. and A.R.S. fj 49-474.01 A.7.) 

In February 2008, Maricopa County adopted the P-27 Vehicle Parking and 

Use on Unstabilized Vacant Lots Ordinance. 

In addition, 23 local governments have new or existing ordinances to prohibit 

vehicle trespass on vacant land. 
IMPLEMENTING 

ENTITY 

County, 

local governments 

County 

State, 

County 

COMMITTED MEASURE 

IN THE MAG 2007 FIVE PERCENT PLAN FOR PM-10 

32. Enhanced enforcement of trespass ordinances and 

codes. 

Quantified for numeric credit to meet the five percent 

per year target and demonstrate attainment. 

33. Ability to assess liens on parcels to cover the costs 

of stabilizing them (Recover costs of stabilizing 

vacant lots). 

Quantified for numeric credit to meet the five percent 

per year target and demonstrate attainment. 

Open Burning I Woodburning 

34. Increase fines for open burning. 

Quantified for numeric credit to meet the five percent 

per year target and demonstrate attainment. 

2008 IMPLEMENTATION STATUS 

In February 2008, Maricopa County adopted the P-28 Off-Road Vehicle Use 

in Unincorporated Areas of Maricopa County and P-27 Vehicle Parking and 

Use on Unstabilized Vacant Lots ordinances. 

In addition, 18 local governments report increased enforcement of vehicle 

trespass ordinances and codes for vacant lots. 

SB 1552 requires rule revisions for stabilization of disturbed surfaces of 

vacantlots. (A.R.S. §49-474.01 A.ll.) 

Maricopa County adopted Rule 31 0.01 revisions in March 2008 to incorporate 

A.R.S. § 49-474.01 A.ll. to allow the County to recover stabilization costs 

through the penalty process. 

SB 1552 requires increasing the fines for unlawful open burning. 

(A.R.S. § 11-871 D.4. and A.R.S. § 49-501 G.) 

In March 2008, Maricopa County revised the Residential Woodburning 

Restriction Ordinance to increase the civil penalty to $250 for the fourth or any 

subsequent violation of the ordinance in accordance with Senate Bill 1552. 

Maricopa County responded to 158 illegal open burning complaints and 30 

wrongful fireplace use complaints which resulted in 11 documented violations 

of Rule 31 4 (Open Outdoor Fires and Indoor Fireplaces at Commercial and 

Institutional Establishments) and 20 warnings for violations of Ordinance 

P- 26 (Residential Woodburning Restriction Ordinance). 
IMPLEMENTING 

ENTITY 

State, 

County 

County 

County 

COMMllTED MEASURE 

IN THE MAG 2007 FIVE PERCENT PLAN FOR PM-10 

35. Restrict use of outdoor fireplaces and pits and 

ambience fireplaces in the hospitality industry. 

Quantified for numeric credit to meet the five percent 

per year target and demonstrate attainment. 

47. Ban open burning during the ozone season. 

Quantified for numeric credit to meet the five percent 

per year target and demonstrate attainment. 

48. Require residential woodburning ordinances to 

include no burn restrictions on high pollution 

advisory days. 

Quantified for numeric credit to meet the five percent 

per year target and demonstrate attainment. 

2008 IMPLEMENTATION STATUS 

SB 1552 requires Maricopa County to prohibit use of wood-burning 

chimineas, outdoor fire pits, and similar outdoor fires on County No-Burn 

Days. (A.R.S. 3 49-501 F.) 

In March 2008, Maricopa County adopted revisions to P-26 (Residential 

Woodburning Restriction Ordinance) and Rule 314 (Open Outdoor Fires and 

Indoor Fireplaces at Commercial and Institutional Establishments) to restrict 

use of outdoor fireplaces and pits and ambience fireplaces in the hospitality 

industry. 

Open burning ban from May 1 through September 30 each year required by 

SB 1552. (A.R.S. 3 49-501 A.2.) 

Maricopa County implemented an open burning ban during the ozone season 

by adding these requirements to Rule 314 (Open Outdoor Fires and Indoor 

Fireplaces at Commercial and Institutional Establishments) and to P-26 

(Residential Woodburning Restriction Ordinance). 

Revision of County ordinance required by SB 1552. (A.R.S. 3 11-871 B.) 

The "no burn restrictions on HPA days" was already a requirement in 

Maricopa County's Residential Woodburning Restriction ordinance. 

Note: Maricopa County revisions to the Residential Woodburning Ordinance, 

adopted in March 2008, pertained to Committed Measure #35. 

See Committed Measure #34 for data on complaints received by the County 

in regard to open burning and wrongful fireplace use. 
IMPLEMENTING 

ENTITY 

State 

State 

State 

COMMITTED MEASURE 

IN THE MAG 2007 FIVE PERCENT PLAN FOR PM-10 

Agriculture 

41. Forward to the Governor's Agricultural Best 

Management Practices Committee that cessation of 

tilling be required on high wind days and that 

agricultural best management practices be required 

in existing Area A. 

42. The Arizona State Legislature provide funding to the 

Arizona Department of Environmental Quality for 

four agriculture dust compliance officers for a total 

of five inspectors. 

50. Require two agricultural best management practices. 

Quantified for numeric credit as a contingency measure. 

2008 IMPLEMENTATION STATUS 

Agricultural Best Management Practices required in Area A by SB 1552. 

(A.R.S. 5 49-457 H. & N.6. and A.R.S. 5 49-542 Sec. 20.) 

On September 25, 2007, the Governor's Agricultural Best Management 

Practices (BMP) Committee revised its rule to double the number of BMPs 

that farmers must implement, added 5 BMP choices (including cessation of 

tilling on High Pollution Advisory Days), and expanded the area for BMPs. 

Arizona State Rules 18-2-610 and 61 1 were revised, effective November 14, 

2007, to comply with Senate Bill (SB) 1552. The Legislature adopted a 

requirement in SB 1552 that expanded the regulated area for Agricultural 

BMPs to include the portion of Area A in Maricopa County and increased the 

number of required Agricultural BMPs from one to two from each category by 

December 31, 2007. 

According to ADEQ information provided to MAG for the Five Percent Plan, 

the Legislature provided funding for two additional agriculture dust compliance 

officers. 

Required by SB 1552. 

(A. R.S. 5 49-457 H. & N.6. and A.R.S. 5 49-542 Sec. 20.) 

Arizona State Rules 18-2-61 0 and 61 1 were revised, effective November 14, 

2007, to comply with Senate Bill (SB) 1552. 

The Legislature adopted a requirement in SB 1552 that expanded the 

regulated area for Agricultural BMPs to include the portion of Area A in 

Maricopa County and increased the number of required Ag BMPs from one to 

two from each category by December 31,2007. 
Table 2, on the following page, lists additional policies and actions that the Maricopa County Air Quality Department (MCAQD) initiated during 

2009 (as described in a September 22, 2009 letter) to further reduce particulate emissions. 

IMPLEMENTING 

ENTITY 

County 

COMMITTED MEASURE 

IN THE MAG 2007 FIVE PERCENT PLAN FOR PM-10 

All Sources 

44. Maricopa County should increase consistent 

enforcement in areas where PM-10 violations 

continue to occur, along with efforts throughout the 

region. When an area continually experiences higher 

PM-10 concentrations than other areas, increased 

enforcement in areas experiencing high monitor 

readings is needed to protect public health. 

Quantified for numeric credit to meet the five percent 

per year target and demonstrate attainment. 

2008 IMPLEMENTATION STATUS 

Maricopa County has increased consistent enforcement in areas where 

PM-10 violations continue to occur. 

In March 2008, Maricopa County revised Rule 280 (Fees) to cover increased 

staffing levels for the MCAQD as a result of Maricopa County's Five Percent 

Plan commitments. 
TABLE 2 

ADDITIONAL POLICIES AND ACTIONS INITIATED BY MCAQD IN 2009 

In a September 22,2009 letter, the Maricopa County Air Quality Department indicated that, 

in addition to other measures, the following new policies are being initiated during 2009 to 

further reduce particulate emissions: 

1 1. 

12. 

13. 

14. 

Review and development of an improved PM emission inventory on HPA and NAAQS days; 

looking to move the inventory from a paper inventory to a field inventory. 

Proposed focused regulation development of sources impacting air monitors exceeding PM 

NAAQS; e.g. auto crushing and reclamation rule for the West 43rd Avenue monitor. 

Proposed area stabilization programs with localized focus in and around air monitors. 

Regular area source inspections program localized around air monitoring stations exceeding 

NAAQS. 
8 

0- 

8 

d 

8 lJ 

=b * >r 

- 3 g! C, 5 

Qb 

8' 8 sfi cur 

3 

% 

s ! 7 

0 L, 

CVa 

.I CS 

V) C 

.I 

5 'I 

I3 . . . . . . . . . . . 

$ w 

z 

H 

I 

I 
Figure 2 

Reductions in 2010 for Contingency Measures 

in the Five Percent Plan for PM-I 0' 

Measure 26 - Pave or stabilize plblic dirt roads and alleys 

Measwe 24 - Sweep streets with PM-10 certified sweepers 

Measures 14,15,17 - Reduce track& onto paved roads * 

Measure 43 - Miid $5M to pave d~rt rcedslshalders 

Measure50 - Pgricultural Best Management Ractices 

Measure 27 - 15 mph speed limits on dirt roads 

Measures 19 - Reduce offroad vehide use 

Measure 1 - Public education and outreach program 

Measure 5 -Certification fa dust free developments 

1 I I I I I I I I 

0 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 

'committed measures quantified for numeric credit as contingency measures. 

 or "Reduce trackout onto paved roads." the emission reduction represents the combined impact of Measures 14,15 and 17. 

26 
Figure 3 

PM-I0 Monitoring Data 

Days Exceeding the 24-Hour PM-10 Standard in 

Maricopa County 

1988 1989 1990 1991 1992 1993 1994 1995 1998 1997 1998 1999 2000 2001 2002 2003 2004 2005 2008 2007 2008 

Notes: 

1. The hatched area represents 11 exceedance days in 2008 that ADEQ has documented as exceptlonal/natural events, but have not been approved by EPA. 

2. Most of the exceedances before 2004 were recorded by filter-based monitors that measured PM-10 concentrations on every sixth day. Since 2004, 

the fllter-based monitors that exceeded the PM-10 standard have been replaced with monitors that measure PM-10 concentrations every day. 

3. The 2007 exceedance occurred at the Buckeye monitor, which is outside of the PM-10 nonattainment area. 

4. The 2008 exceedance occurred at the Durango Complex monitor. 

2 7 
AlTACHMENT 

MAG 2007 FIVE PERCENT PLAN FOR PM-10 FOR THE 

MARICOPA COUNTY NONATTAINMENT AREA 

EXECUTIVE SUMMARY 
MAG 2007 FIVE PERCENT PLAN FOR PM-10 FOR THE 

MARICOPA COUNTY NONATTAINMENT AREA 

EXECUTIVE SUMMARY 

MARICOPA 

ASSOCIATION of M OOVERNMENTS 
MAG 2007 FIVE PERCENT PLAN FOR PM-10 

EXECUTIVE SUMMARY 

Within the Maricopa County nonattainment area, the National Ambient AirQuality Standard 

has not yet been attained for PM-10 particulate pollution. The Maricopa Association of 

Governments was designated by the Governor of Arizona in 1978 and recertified by the 

Arizona Legislature in 1992 to serve as the Regional Air Quality Planning Agency to 

develop plans to address air pollution problems. 

Based upon the 1990 Clean Air Act Amendments, the Maricopa County nonattainment 

area was initially classified as Moderate for PM-10 particulate pollution. However, on May 

10, 1996, the nonattainment area was reclassified to Serious due to failure to attain the 

particulate standard by December 31, 1 994. The Serious Area reclassification was 

effective on June 10,1996. 

The Revised MAG 1999 Serious Area Particulate Plan for PM-10 for the Maricopa County 

Nonattainment Area was submitted to the Environmental Protection Agency (EPA) in 

February 2000. On July 25, 2002, EPA published a notice of final approval for the plan. 

Collectively, the plan contained approximately seventy-seven committed control measures 

from the State and local governments. The plan demonstrated attainment of the PM-10 

standard by December 31,2006. 

In order to be in attainment, the region needed three years of clean data at the monitors 

for 2004,2005, and 2006. However, there were numerous exceedances of the 24-hour 

standard in 2005 and 2006. On June 6,2007, EPA published a final notice with its findings 

that the Maricopa County nonattainment area had failed to attain the PM-10 standard by 

the federal deadline of December 31,2006. 

In accordance with Section 189 (d) of the Clean Air Act, the Five Percent Plan for PM-10 

is due to the Environmental Protection Agency by December 31, 2007. The plan is 

required to reduce PM-10 emissions by at least five percent per year until the standard is 

attained as measured by the monitors. The Clean Air Act specifies that the plan must be 

based upon the most recent emissions inventory for the area and also include a modeling 

demonstration of attainment. 

Particulate air pollution can occur throughout the year. The formation of PM-10 particulate 

pollution is dependent upon several factors. Among these factors are stagnant masses, 

severe temperature inversions in the winter, high winds in the summer, and fine, silty soils 

characteristic of desert locations. In the Maricopa County nonattainment area, particulate 

matter (PM-10) concentrations are elevated during various seasons of the year and under 

different weather conditions. The variability is due to the diverse composition of PM-10 and 

the sources contributing to this diversity. 

The trend in PM-10 levels for the Maricopa County nonattainment area is presented in 

Figure ES-1. The 24-hour PM-10 standard is 150 micrograms per cubic meter. In 2004, 
NUMBER OF 24-HOUR PM-10 EXCEEDANCE DAYS 

Year 

W: The Ariwna Degartment of Environmental Quafity began fbgging rratawal and exwptbml events in 2004. that have been 

appmued a are pedng approval by EPA as naW or exceptionai events haw beern removed from this chart 
there was one exceedance day of the 24-hour standard. However, in 2005 there were 19 

exceedance days and in 2006 there were 21 exceedance days of the 24-hour standard. 

Figure ES-2 indicates the monitors where exceedances occurred, The violations of the 

standard at the Bethune Elementary School, Durango Complex, and West 43d Avenue 

monitors caused the region to fail to attain the PM-10 standard by the December 31, 2006 

attainment date. 

A rigorous planning effort was conducted to prepare the MAG 2007 Five Percent Plan for 

PM-10. An extensive Preliminary Draft Comprehensive List of Measures was compiled for 

evaluation. The MAG Analysis of Particulate Control Measure Cost Effectiveness report 

provided an evaluation of forty-six control measures. For each measure, the following 

information was prepared: narrative description; suggested implementing entity; estimate 

of the cost of implementation; estimate of the PM-10 emission reduction potential; estimate 

of the cost effectiveness ($/ton of PM-10 reduced); and discussion of implementation 

issues and comments. In preparing the information for the analysis, measures from other 

PM-10 Serious Areas were reviewed and contacts were established. Relevant dust control 

literature reviews were performed to obtain data on measured emission reductions. 

Contacts were established with local agencies and businesses in Maricopa County to 

determine the cost of labor, equipment, materials, etc. 

The MAG PM-10 Source Attribution and Deposition Study was another major study which 

provided information for the evaluation of control measures. The study was designed to 

identify the sources of emissions contributing to violations of the PM-10 standard at 

monitors in the nonattainment area during stagnant conditions and characterize the 

deposition of PM-10 particles emitted by these sources. The MAG consultants for the 

study were T&B Systems and Sierra Research. The key questions addressed in the study 

were: 

1. Where are the specific source areas and/or sources in the Salt River region 

that contribute to the particulate matter (PM) loading at the Durango 

Complex and West 43rd monitoring sites? 

2. To obtain useful results from models such as AERMOD, can the regional 

particle size distribution be characterized on an area basis (i.e., is there an 

area of uniformity that can be generalized?) 

3. What are the causes of heavy PM loading during the morning hours at the 

Durango and West 43* monitors? Are the diurnal variations of PM-10 and 

peaks due to reentrainment of paved road dust, or due to other activities in 

the surrounding areas that are coincident with traffic peaks? 

The approach used for the study involved assessing existing meteorological and PM data; 

selecting monitoring tools; establishing a sampling plan; defining routes for mobile 

sampling; determining locations of meteorological data collection; selecting locations to 

investigate dispersion of roadway sources; conducting sampling in two phases; 
flGURE ES-2 

EXCEEDANCES OF THE 24-HOUR PM-10 STANDARD AT MONITORS IN MARICOPA COUNTY 

W. 43rd Ave Durango Buckeye Higk~ Bethune Greenwood W. Phoenix 

Nates: 1. t3medam are based on data from the €PA Air Wi System (AQS). Exce&mm due to natural events have been 

removed from the AQS by EPA. 

2. 9716 exceedam at the Bethune, Greenwood, and W. Phoenix monitors occurred on 12/12/05. 
coordinating with local agencies for related data; and performing daily review of collected 

data to identify insights, opportunities and problems. The monitoring tools for the study 

included: a particle lidar; mobile monitoring; DustTrak optical PM-10 monitors; DustTrak 

optical PM-2.5 monitors; an aerodynamic particle size analyzer; MiniVol filter based 

samplers; a sodar; and a SCAMPER vehicle. The SCAMPER (System for Continuous 

Aerosol Monitoring of Particulate Emissions from Roadways) vehicle was used to measure 

PM-10 from paved roads. From November 15, 2006 through December 14, 2006, 

extensive measurements were taken in the Salt River area using state-of-the-art 

technologies. 

In general, the study identified a number of sources of PM-10 in the Salt River area. They 

included: trackout; dragout from unpaved or poorly maintained paved roads or parking 

lots; unpaved shoulders; unpaved roads; open burning; agriculture; and vehicle activity on 

unpaved parking areas and vacant lots. Preliminary results from the study were used in 

the evaluation of control measures and the final results were used in the modeling 

attainment demonstration. 

Based upon the Maricopa County Air Quality Department 2005 Periodic Emissions 

Inventory for PM-10 for the Maricopa County Nonattainment Area, the primary sources of 

PM-10 are: Paved Roads (including trackout) 16 percent; Construction (residential) 14 

percent; Construction (commercial) 13 percent; Unpaved Roads 10 percent; Construction 

(road) 9 percent; Fuel Combustion and Fires (industrial natural gas and fuel oil, 

commericial/institutional natural gas and fuel oil, and residential natural gas, wood and fuel 

oil) 7 percent; and Windblown Vacant (vacant lots) 7 percent. The sources are depicted 

in Figure ES-3. 

The emissions in the 2005 Periodic Emissions Inventory for PM-10 were projected to 2007, 

2008,2009, and 201 0. The total controlled emissions of 97,436 tons in the 2007 projected 

inventory were used to calculate the five percent reduction target in emissions (see Figure 

ES-4). This number was multiplied by five percent to determine the PM-10 emissions 

reduction target of 4,872 tons per year. To meet this annual target, the 2008 emissions 

with committed control measures must be at least 4,872 tons less than the base case 2008 

emissions; the controlled 2009 emissions must be at least 9,744 tons less than the 2009 

base case emissions; and the controlled 201 0 emissions must be at least 14,616 tons less 

than the 201 0 base case emissions. 

In order to reduce PM-10, a broad range of commitments to implement measures were 

received from the State, Maricopa County, and the twenty-three local governments in the 

PM-10 nonattainment area. Collectively, the MAG 2007 Five Percent Plan for PM-10 

includes fifty-three committed measures. 

The key committed measures that were quantified as control measures include: Dust 

Managers/Coordinators at Earthmoving Sites; Increase Rule 310 and 316 Inspections; 

Extensive Dust Control Training; Conduct Nighttime and Weekend Inspections; Strengthen 

Rule 310 to Promote Continuous Compliance; Pave or Stabilize Dirt Shoulders; Pave or 
FIGURE ES-3 

2005 PM-10 Emissions 

in the PM-10 Nonattainment Area 

Total = 84,753 tonslyear Fnaiy 

/ W Industrial processes 

point sources 1 11 

( W Fuel combustion & fires il 

W Agriculture 

W Construction (residential) 

W Construction (commercial) 

Construction (road) 

Rl Other land clearing 

CI Travel on unpaved parking lots 

Cl Offroad rec vehicles 

Leaf blowers fugitive dust 

Windblown vacant 

1 El Windblown other 

I Nonroad equipment 

W Paved roads (induding tradwt) 

R Unpaved roads 

Source: 2005 Periodic Emissions Inventory for the Maricopa County, Ar'nona Nonattainment Area. hAaricopa County Air Qualii Department 2007. 

ES-6 
Figure ES-4 

2007 PM-10 Emissions 

with Corn mitted Control Measures 

Total = 97,436 tonslyear Stationary point sources 

Mustrial processes 

. Fuei combustion & fires 

H Agriiulture 

. Construction (residential) 

. Construction (commercial) 

I Construction (road) 

H Other land clearing 

Travel on unpaved parking lots 

Off road rec vehicles 

Leaf blowers fugitive dust 

Windblown vacant 

O Windblown other 

. Nonroad equipment 1 . Exhausthire wear~brake wear / / I . Paved mads (including trackout) I / 

Unpaved roads 

-- 

Source: Maricopa Association of Governments, 2007 ES-7 
Stabilize Unpaved Parking Lots; Restrict Vehicle Use on Vacant Lots; Strengthen Rule 

31 0.01 for Vacant Lots; and Recover the Cost of Stabilizing Vacant Lots. 

-The committed control measures were quantified in order to model attainment and meet 

the five percent reduction targets. -The PM-10 emissions reductions for the committed 

control measures are shown in Figure ES-5. 

With the implementation of the committed control measures, the total PM-10 emissions in 

201 0 are 82,829 tons (See Figure ES-6), which represents a 19.3 percent reduction in the 

201 0 base case emissions. These reductions are necessary to model attainment of the 

PM-10 standard at all monitors as expeditiously as practicable, which is 201 0. -The total 

reductions due to the committed control measures also exceed the annual five percent 

reduction targets in 2008, 2009 and 2010, as indicated in Table ES-1. 

In accordance with the Clean Air Act, the MAG 2007 Five Percent Plan for PM-10 also 

contains contingency measures. The contingency measures are committed measures in 

the adopted plan which achieve emissions reductions beyond those measures relied upon 

to model attainment of the standard and demonstrate progress toward attainment (i.e., five 

percent reductions, reasonable further progress, and milestones). 

-The key committed measures in the Five Percent Plan that were quantified as contingency 

measures are: Pave or Stabilize Dirt Roads and Alleys; Sweep with PM-10 Certified Street 

Sweepers; Reduce Trackout Onto Paved Roads; Additional Five Million Dollars in FY 2007 

MAG Federal Funds for Paving Dirt Roads and Shoulders; Agricl~ltural Best Management 

Practices; 15 Mile Per Hour Speed Limits on Dirt Roads; Reduce Offroad Vehicle Use; 

Certification for Dust Free Developments; and Public Education and Outreach Program. 

EPA guidance indicates that contingency measures should provide emissions reductions 

equivalent to one year of reasonable further progress. The reasonable further progress 

requirements for Serious PM-10 nonattainment areas are included in Section 189(c) of the 

Clean Air Act. For the Five Percent Plan, one year of reasonable further progress is 

equivalent to a reduction in PM-10 err~issions of 4,869 tons. 

Figure ES-7 shows the impacts of the individual contingency measures in 2010. 

Collectively, the contingency measures reduce PM-10 ernissions by 5,223 tons in 2008, 

7,213 tons in 2009, and 9,159 tons in 2010 versus the contingency target of 4,869 tons per 

year, as shown in Table ES-1. 

The total 2010 PM-10 emissions with committed control measures and committed 

contingency measures are 73,670 tons (see Figure ES-8). Together, these measures 

reduce base case PM-10 emissions by 28.2 percent in 2010. 

For conformity analyses, the onroad mobile source emissions budget includes reentrained 

dust from travel on paved roads; vehicular exhaust, tire wear, and brake wear; travel on 

unpaved roads; and road construction. In 2010, the PM-10 emissions from these four 

source categories total 103.3 metric tons per day. This represents the onroad mobile 

source emissions budget for conformity. 

Figure ES-6 

201 0 PM-10 Emissions 

with Committed Control Measures 

Total = 82,829 tonslyear 

(1 9.3% reduction) 

Stationary point sources I Industrial processes I I I Fuel combustion & fires I I 

I Agriculture 

Construction (residential) 

I Construction (commercial) 

I Construction (road) 

I Other land clearing 

Travel on unpaved parking lots 

Offroad rec vehicles 

U Leaf blowers fugitive dust 

Windblown vacant 

El W indblown other 

Nonroad equipment I Exhausthire weartbrake wear /I / I Paved roads (including trackout) (1 

13 Unpaved roads 

Source: Maricopa Association of Governments, 2007 ES-10 
TABLE ES-l 

EMISSIONS REDUCTIONS FOR COMMITTED CON'TROL MEASURES QUANTIFIED 

TO MODEL ATTAINMENT AND MEET 'THE FIVE PERCENT REDUCTION 

REQUIREMENT 

6,605 tons vs. five percent reduction target of 4,872 tons in 2008 

a 15,423 tons vs. five percent reduction target of 9,744 tons in 2009 

a 19,840 tons vs. five percent reduction target of 14,616 tons in 201 0 

EMISSIONS REDUCTIONS FOR COMMITTED CON'TINGENCY MEASURES 

QUANTIFIED TO MEET 'THE CONTINGENCY MEASURE REQUIREMENT 

a 5,223 tons vs. contingency reduction target of 4,869 tons in 2008 

a 7,213 tons vs. contingency reduction target of 4,869 tons in 2009 

. 9,159 tons vs. contingency reduction target of 4,869 tons in 2010 

ES-I I 

Figure ES-8 

201 0 PM-10 Emissions 

with Committed Control and Contingency Measures 

Total = 73,670 tonsfyear 

(28.2% reduction) Stationary point sources 

I Industrial processes 

3% 5% I rn Fuel combustion & fires I I 

I Agriculture 

I Construction (residential) 

I Construction (commercial) 

I Construction (road) 

I Other land clearing 

Travel on unpaved parking lots 

Offroad recreational vehicles 

Leaf blowers fugitive dust 

I WindMown vacant 

Windblown other 

I Ncmroad equipment 

I Exbustitire wearlbrake wear 

I Paved roads (including trackout) 

Unpaved roads 

Source: Maricopa Association of Governments, 2007 ES-13