_________________________________________________________________ ____________

_ Supporting Statement Am bient Oxides of Nitrogen Monitoring Regulations: Revisions to Network Design Requirements

EPA ICR # 2358. 02
PART A 1. Identification of the Informatio n Collection (a) Title of the Information Collection Am bient Oxides of Nitrogen Monitoring Regulations: Revisions to Network Design Requirements , EPA ICR Number 2358.0 2 , OMB Control Number 2060
- NEW (b) Short Characterization/Abstract T his Information Collection Request (ICR) includes ambient air monitoring data reporting and recordkeeping activities associated with the 40 CFR part 58 Ambient Air Quality Surveillance regulations. These data and information are collected b y State, local, and Tribal air quality management agencies and reported to the U.S. Environmental Protection Agency (EPA). The EPA is revis ing the network design requirements for the oxides of nitrogen (NO X ) , specificall y nitrogen dioxide (NO 2 ) , to support the propos ed changes to the primary National Ambient Air Quality

Standards (NAAQS) for NO 2 . Presently , States (including the District of Columbia, Puerto Rico, and the Virgin Islands) and local agencies when delegated b y the State are required to operate minimum numbers of EPA

- approved NO 2 monitors based on the population of each of their Core Based Statistical Areas (CB SA) and the traffic related metric s including Annual Average Dail y Traffic (AADT) of all the road segments in their CBSAs. EPA is proposing a two

- tiered monitoring network design. The two tiers are designed to : 1) monitor in areas of expected maximum 1

- hour concentrations ; and 2) monitor to characterize area s with the highest expected NO 2 concentrations at the neighborhood and larger spatial scales , or “area

- wide” scales . The proposed network design corresponds to the revised NAAQS based on peak 1

- hour daily

maximum concentrations, or 1

- hour NAAQS, with a level of 100 parts per billion (ppb) , and the retention of the current annual averaged NAAQS which has a level of 53 ppb. The introduction of the 1

- hour NAAQS is i ntend ed to protect against peak, shorter term exposure risks . These exposure risks have been found to be of particular interest in the on

- road and near

- road environments due to on

- road mo bile source emissions, which led to the proposed minimum monitoring requirements to include near - road monitors to be included in the first tier of the network design.
In the first tier of the NO 2 network design, EPA is finalizing minimum NO 2 monitoring requirements which call for monitors near major roads, “near

- road NO 2 monitors,” in certain CBSAs to address on

- road mobile source emission derived exposures. Specifically , the minimum monitoring requirements are for one near - road NO 2 monitor to be placed in CBSA s of2

populations greater than or equal to 5 0 0,000 persons . A second near

- road NO 2 monitor is required in CBSAs of populations greater than or equal to 2,500,000 persons, or any CBSA with one or more roadway

segments that have 250,000 or greater AAD T volumes The first tier of the proposed NO 2 network design is anticipated to require 1 26 near road monitoring sites, which largel y do not exist in the current monitoring network. Therefore, we recognize that there will likely be a need for capital fundin g to allow most, if not all, of the required near

- road monitoring sites to be established. The establishment costs of monitoring sites can include property access or leasing fees, power and telecom services, site security, a climate controlled monitoring s helter, pollutant anal yz ers, supporting quality assurance hardware and consumables, and data collection and dissemination hardware and software. In the second tier of the monitoring network design, we are requiring a minimum number of monitors to characte rize an area or areas within CBSAs with highest expected NO 2 concentrations at the neighborhood and larger (area

- wide) spatial scales. Specificall y, we are proposing to require one area

- wide monitoring site in each CBSA with a population greater than or equal to 1,000,000, which shall be sited to represent an area of maximum concentration at the neighborhood or larger spatial scales. This minimum monitoring requirement is expected to trigger 52 monitoring sites in as many CBSAs. Many

of these monitors are l ikely already in place as part of the approximately 400 NO 2 monitoring sites that are currently operating across the country that serve multiple monitoring objective aside from NAAQS comparisons, including ambient photochemical pollutant assessment, aiding in ozone forecasting, aiding in PM precursor anal ys is and PM forecasting, and to characterize point and area sources that may be impacting certain communities . Further, the EPA is allow ing any current photochemical assessment monitoring station (PAMS) sit es that are situated to address the highest NO 2 concentrations in an urban area at neighborhood or urban scales to satisfy this proposed area

- wide monitoring requirement . Therefore, this tier of the proposed network design is not anticipated to increase th e number of monitoring sites above what is already operating in the current network. In addition, EPA has also recognized that susceptible and vulnerable populations, which include asthmatics and disproportionately exposed groups (as discussed in sections II.B.4 and II.F.4.d of the preamble to the final rule ) are at particular risk of NO 2 - related health effects . The Administrator is therefore requiring the Regional Administrators, working in collaboration with states, to site 40 monitors in appropriate lo cations, focusing primaril y on protecting susceptible and vulnerable communities. Further, Regional Administrators may also use the ir discretion ary authority to require monitoring above the minimum requirements as necessary to address situations inside or outside of CBSAs in which (1) the required near

- road monitors do not represent all locations of expected maximum hourly NO 2 concentrations in an area and NO 2 concentrations may

be approaching or exceeding the NAAQS in that area ; (2) areas that are not required to have a monitor in accordance with the monitoring requirements and NO 2 concentrations may

be approaching or exceeding the NAAQS; or (3) the minimum monitoring requirements for area

- wide monitors are not sufficient to meet monitoring objectives

. The total number of monitors being minimally required in this rulemaking is estimated to be 218. EPA and others (e.g., State, local, and Tribal air quality management agencies, environmental groups, academic institutions, and industrial groups) use th e data from the3

monitoring network for many purposes. Some of the more prominent uses include informing the public and other interested parties of an area ’ s air quality , judging an area ’ s (e.g., county, city, neighborhood) air quality in comparison with the e stablished health or welfare standards (including both nation al and local standards), evaluating an air quality management agency ’ s progress in achieving or maintaining air pollutant levels below the national and local standards, developing and revis ing State Implementation Plans (SIPs) in accordance with 40 CFR part 51, evaluating air pollutant control strategies, developing or revising national control policies, providing data for air quality model development and validation, supporting enforcement actions, documenting episodes and initiating episode controls, air quality trends assessment, and air pollution research. The State, local, and T ribal air quality management agencies with responsibility for reporting ambient air quality data and informati on as requested in this ICR submit these data electronically

to the EPA ' s Air Quality S ys tem (AQS) and AIRNow databases. Quality assurance/quality

control records and monitoring network documentation are also maintained by each State, local, and Tribal ag ency , in AQS electronic format where possible. Although the State, local, and Tribal air quality management agencies are responsible for the operation of the air monitoring networks, the EPA funds a portion of the total costs through federal grants. Som e of these grants require an appropriate level of contribution, or “ match , ” from the State/local air quality management agencies. The costs shown in this I CR are the total costs incurred for the monitoring program regardless of the source of the funding. For the purpose of this ICR, we have estimated the maximum potential burden for the options being considered. The I CR estimates for the final rule will present the burden estimate based on the requirements contained in the final rule. The burden estimates are for the 3

- ye ar period of 201 1 through 201 3

. This Information Collection is estimated to involve 14 2 respondents for a total approximate cost of $ 3,261,007 (total capital, and labor and operation and maintenance) and a total burden of 49,474 hours. The labor costs associated with the se hours is $ 2, 737 , 485

. The operations and maintenance costs are $ 661,960 and e quipment and contract costs are $ 289,002 . In addition to the costs at the State, local, and Tribal air quality management agencies, there is a burden to EPA of total of 5,431 hours and $ 390,054

. 2. Need for and Use of the Collection (a) Need/Authority for the Collection The information requirements included within this I CR are necessary to provide the EPA with ambient air quality

surveillance data to determine the United States ‘ air quality status, to make attainment decisions with respect to the NAAQS, to assist in developing necessary control strategies to ensure attainment of the NAAQS, to assess national trends in air pollution, to inform the public of air quality, and to determine the population ’ s exposure to various ambient air pollutant s. The EPA ’ s goal of attaining the NAAQS in all areas of the United States is directly dependent upon the availability of ambient air quality

data requested in this information4

collection. Additionally , the EPA, State, local, and Tribal air quality manag ement agencies, environmental groups, industrial groups, and academic organizations use these data to study atmospheric chemistry , e.g., the formation and fate of NO 2 , to determine the most appropriate and effective control strategies necessary to reduce air pollution. The principal legal authority for this information collection is the Clean Air Act 42 U.S.C.A. Sections 7403, 7410, and 7511a, from which the 40 CFR part 58 regulations were promulgated. Under Section 7403 (c), the Administrator is required to conduct a program of research, testing, and development of methods for sampling, measurement, monitoring, anal ys is, and modeling of air pollutants, specificall y including a requirement to establish a national network to monitor, collect, and compile data with quantification of certainty in the status and trends of air emissions and air quality . This program will also include the development of improved methods and technologies to increase understanding of the sources of nitrogen oxides , its formation, transport, regional influences and trends, and interactions with other pollutants. Section 7410 (a) contains the SIP requirements, which include a requirement that each State submit a SIP that provides for the establishment and operation of appropriate devices, methods, sy stems, and procedures necessary to monitor, compile, anal yz e, and make available to the Administrator data on ambient air quality

. Section 7511a (c)(1) states that the Administrator will promulgate rules requiring that State, local, and Tribal air quality management agencies conduct enhanced monitoring of ozone and its precursors (oxides of nitrogen and volatile organic compounds) in serious, severe, or extreme ozone nonattainment areas.
2(b ) Practical Utility/Users of the Data Th e EPA Office of Air Quality Planning and Standards (OAQPS) uses the ambient air quality data included within this collection to make attainment decisions with respect to each air pollutant subject to NAAQS. For those areas that do not attain the NAAQS for one or more pollutants, the OAQPS, the affected EPA Regional Office, and the affected State or local air quality management agency

will work to develop an appropriate SIP to address how the area = s air quality

can be improved to meet the applicable NAAQS. To identify

how the nation is progressing in improving air quality , the OAQPS prepares annually the National Air Quality and Emissions Trends report (http://www.epa.gov/airtrends) using the ambient air quality data collected through this I CR. The State, local, and Tribal air quality management agencies use these data for multiple purposes including tracking their progress toward achieving and maintaining air quality within the established NAAQS and an y statewide standards they

have established. For examp le, the State of California has established a separate statewide ozone air quality standard that is more stringent than the NAAQS for ozone; therefore, they

use ambient air data to determine compliance with both standards.5

3. NON
- DUPLICATION, CONSULTAT IONS, AND OTHER COLLECTION CRITERIA 3(a ) Non
- duplication This collection is not unnecessarily duplicative of information otherwise reasonably accessible to the agency . The AQS and AIRN o w sy stems, which contain information based solely on this collection , are the onl y national air quality data repositories available to the EPA. The ambient air quality

surveillance data and related information collected through this information collection are not otherwise reasonably accessible to the EPA. A few State an d local air quality management agencies have their own data storage sy stems (e.g., the California Air Resources Board); however, most State, local, and Tribal air quality management agencies use the AQS and AIRNow as their primary repositories for all air quality data. 3(b ) Public Notice Required Prior to ICR Submission to OMB The 1995 Paperwork Reduction Act requires that any agency developing a non

- rule related ICR must solicit public comments for a 60

- day period prior to submitting the I CR to OMB. This section is not applicable to this I CR because this is a rule

- related I CR. 3(c ) Consultations Through the course of planning, monitoring, and improving upon this collection and its associated regulation, the EPA regularl y consults with affected State, local, and Tribal air quality management agencies through various methods including the regulatory process, regular meetings, and training courses. The EPA conducts annual work shops and training on the AQS reporting s ys tem, e.g., th e annual AQS Conferenc e. The EPA Regional Offices conduct annual ambient air monitoring meetings with their affected State, local, and Tribal air quality management agencies to assist these affected agencies with this collection and its a ssociated regulat ion. The EPA’s OAQPS also meets regularly with leading State and local air monitoring managers to discuss the N ation’s ambient air monitoring program and this collection, via large monthly phone calls and smaller in person meeting two or three times per year. Starting in 1999, the Clean Air Scientific Advisory Committee (CASAC) established the subcommittee on fine particle monitoring to provide advice to EPA on various implementation aspects of the PM monitoring networks. In addition, CASAC also has esta blished a monitoring strategy subcommittee to extend consultation to the entire network

. 3(d ) Effects of Less Frequent Collection State, local, and Tribal air quality management agencies would collect and report ambient air quality

data without the 40 C FR 58 regulations associated with this collection. Sanctions do not automatically

accrue to State or local air quality management agencies that fail to meet these requirements. The 40 CFR part 58 regulations and this associated collection do provide for a consistent sy stem for reporting and record keeping that would not exist without these requirements. The effects of less frequent collection include:6

• A national database that is not consistently updated and available for public consumption;

• Less timel y attainment designations with respect to the NAAQS;

• More difficultl y in identifying and repairing problems with an ambient air monitor

-- i.e., data are used as to check a monitor’s operating condition, and reporting data less frequentl y would delay a State or local agency’s ability to recognize a problem with a monitor or a laboratory

procedure; and

• The EPA would not be able to consistently answer questions from the public in a timely fashion regarding air quality in various areas of the country. 3(e ) General Guidelines All of the OMB ’ s general guidelines for information collections in 5 CFR 1320.6 are met by this ICR. None of the guidelines are exceeded.

• Data reporting on a quarterly basis is the requirement. Nearl y all respondents voluntarily

report on a monthly

basis.

• Record retention is for no more than 3 years (most records are kept by the EPA data repository , not the affected State, local, and Tribal air quality management agencies)

• In formation is maintai ned and reported in the standardized electronic AQS format. 3(f ) Confidentiality In formation that is considered personal, private, proprietary , or confidential is not required for this collection. One purpose of collecting ambient air data through AQS a nd AIRNow is to inform the public of general air quality in ambient air (air considered generall y accessible to the public), and as such, does not present a need for maintaining a confidential nature. Security

measures are taken to prevent tampering with the AQS electronic database b y limiting the access to the AQS mainframe onl y to authorized users 3(g ) Sensitive Questions This section is not applicable to this I CR because no information involving matters of a sensitive nature is collected. 4. THE RESPONDENTS AND THE INFORMATION REQUESTED 4(a ) Respondents /SIC Codes7

This I CR affects State, local, and Tribal governments (SI C code 951, Administration of Environmental Quality

Program) that are currently operating and maintaining es tablished ambient air quality

networks. The 40 CFR part 58 regulations associated with this request require that State, local, and Tribal air quality management agencies conduct the ambient air quality surveillance and report the data to the EPA ’ s AQS. A lthough industrial, environmental, and research organizations may use the data available through the AQS, they are not required to report an y information for this information collection. Data submittal to AIRNow is voluntary for all organizations, but mos t State and local agencies reporting to AQS also report to AIRNow. 4(b ) Information Requested (i ) Data items, including record keeping requirements These data items are submitted electronicall y to EPA ’ s AQS as required b y 40 CFR part 58. Th e se data are stored electronically within the EPA ’ s AQS, and separate records kept b y the State or local air quality management agency are not required

.

• Hourly

ambient air pollutant concentrations of NO, NO 2 , and total NO X collected at SLAMS /PAMS and tribal site s.

• Precision and accuracy data for all SLAMS sites, PAMS, and Special Purpose Monitors (SPM).

• SLAMS monitoring network description information, including the site AQS identification number, site location, sampling and anal ys is method, operating sched ule, monitoring objective, site ’ s scale of representation, identity of the urban area represented, and quality assurance plan.

• Results of the annual ambient air monitoring network and quality assurance plan review.

• Annual SLAMS summary report which i ncludes the location, date, pollution source, and duration of each incident of air pollution during which ambient levels of a pollutant reached or exceeded the significant harm levels as defined in 40 CFR 51.151, the certification of the report ’ s accuracy by a designated State air pollution control officer, and various other summary statistics as provided b y the AQS system.
( ii) Respondent Activities A model respondent would engage in the following activities to comply with this information request:

• Read the 40 CFR part 58 regulatory provisions and other EPA guidance (for example, please reference our Internet site at www.epa.gov/ttn/amtic.)8

• Plan ambient air monitoring activities, such as developing a quality assurance plan for the network operati on and maintenance, developing and reviewing the ambient air quality surveillance network design, planning where to locate sites, plan how to maintain and operate each site, develop a data reporting and validation plan.

• Write the quality

assurance plan for network operation and maintenance, the ambient air quality

surveillance network plan, and the data reporting and validation plan. Submit these plans to the EPA Regional or Headquarters office for review, and approval if appropriate.

• Obtain on

- site leases or agreements to locate ambient air quality surveillance equipment.

• Investigate vendors, and procure equipment necessary to meet the ambient air quality network plan.

• Receive training for site operation and maintenance, quality assurance proce dures, and data processing and reporting.

• Make arrangements for appropriate utility hookups for each ambient air quality surveillance site, i.e., electricity , telephones, data lines for electronic submission of concentrations from automated anal yz ers.

• Install ambient air quality surveillance equipment and equipment shelter. Ensure security of the site.

• Conduct ambient air quality monitoring, incorporating all appropriate quality assurance procedures such as calibrations, precision and accuracy che cks, and, if necessary , concurrent monitoring.

• Validate the ambient air data for quality assurance considerations.

• Electronicall y submit the complete and validated ambient air data to the AQS and/or AIRNow data repositories.

• Prepare and submit to EPA annuall y the SLAMS sites summary report. Each of these activities are conducted using existing reporting and recordkeeping practices, including electronic submittal to the AQS and to AIRNow . If the 40 CFR part 58 regulations did not exist, and pre sumabl y the related AQS and AIRNow, the quality assurance procedures, and the siting guidance did not exist, the State, local, and Tribal air quality management agencies would in a majority of cases conduct monitoring; however, methods used by each agency would vary

and data would not be readil y available to EPA and the public. The influence of the 40 CFR part 58 regulations has been to provide a nationally consistent mechanism for collecting ambient air quality data including uniform quality assurance9

pro cedures, data collection and storage mediums (AQS), and uniform methodology . Without this regulations and associated ICR, managing and maintaining a national air quality program would be extremely

difficult, if possible.

5. THE INFORMATION COLLECTED
- - AGENCY ACTIVITIES, COLLECTION METHODOLOGY, AND INFORMATION MANAGEMENT 5(a ) Agency Activities The EPA conducts the following activities to implement this I CR and associated regulation:

• Periodically

review the 40 CFR part 58 regulations to update the i nformation collection and monitoring requirements in light of new technological developments or new air pollutant standards. Develop revisions to the regulations in response to legislative action and program changes.

• Establish, maintain, and support th e AQS and AIRNow as the national repositories for all State, local, and Tribal air quality management agency ambient air quality data and monitoring information. Periodically evaluate and improve upon this sy stem as new technologies, and new regulatory re quirements would dictate.

• Answer respondent (generally State, local, and Tribal air quality management agencies, but also industrial organizations, environmental groups, and others) questions about ambient air monitoring, the 40 CFR part 58 regulatory r equirements, and the AQS and AIRNow. This includes the establishment of the Ambient Monitoring Technology

I nformation Center bulletin board, the AQS toll

- free hotline, and other written or verbal communication.

• Support the quality

assurance program b y working within the EPA and with the respondents to evaluate precision and accuracy data, oversee the National Performance Audit Program, participate in s ys tems audits, and conduct data validation checks on the AQS data submittal.

• Provide within the AQS mechanisms for statistical calculations, such as the number of times a particular ambient air quality monitoring site exceeds the NAAQS. Distribute the AQS data in various way s including upon written request, by Freedom of Information Act request, by pres s release, and in the annual National Air Quality and Emissions Trends Report.

• Provide adequate electronic storage space within the AQS for all ambient air quality surveillance data and information.

• Provide various reports and graphics for users of AIRNow.10

5(b ) Collection Methodology and Management All State, local, and Tribal ambient air monitoring networks have access to and use well

established quality

assurance procedures as defined in the Quality Assurance Handbook for Air Pollution Measureme nt Sy stems, Volumes I and II, EPA/600/R

- 94/038a & b. These documents ensure that all ambient air quality data are accurate and reliable. The EPA has provided and will continue to provide resources for the maintenance and operation of the AQS and AIRNow national data repositories. All data required by this collection are submitted electronically to reduce the burden of the collection and to improve data quality , agency

efficiency , and responsiveness to the public. Various statistical and graphical summ aries are also provided by the AQS and AIRNow sy stems which enhance the utility of the information for consumption by the public and all affected State, local, and Tribal air quality management agencies. In submitting ambient air data into the AQS and AIR Now national repositories, we ensure that the data are publicl y available, electronicall y stored, and electronically

retrievable. State, local, and Tribal air quality management agencies and the EPA have been submitting data to the AQS since its inception in 1987. 5(c ) Small Entity Flexibility This collection contains a minimum amount of information in order to manage the air quality program for the United States. The smallest entities affected b y this collection are local air quality

management agenci es, t ypicall y consisting of the governing agencies for a county or group of counties, or a smaller metropolitan area (e.g., cities with a population of 350,000 ). This collection reduces to the extent practicable and appropriate the burden on entities that provide ambient air quality

data and information to or for the EPA, including with respect to small entities, as defined in the Regulatory Flexibility

Act (5 U.S.C. 601(6)), the use of such techniques as:

• Establishing differing compliance or reporting requirements or timetables that account for the resources available to those who are to respond (e.g., the monitoring and reporting requirements decrease as the population of an area decreases, and various timetables for deploying ambient air monitoring st ations are negotiated between the affected State or local air quality management agency

and the EPA with consideration of the respondent ’ s resources);

• Clarification, consolidation, or simplification of compliance and reporting requirements (e.g., b y e stablishing, maintaining, and improving as needed the AQS and AIRNow national repositories for ambient air quality data and information);

• Exemption from coverage of the collection of information, or any part thereof (e.g., the EPA negotiates with State, local, and Tribal air quality management agencies to determine the most effective and most efficient ambient air quality networks with respect to the monitoring needs, technical abilities, and resources available to each affected agency).11

5(d ) Collection Schedule Ambient air quality

surveillance data and precision and accuracy data for criteria air pollutants are submitted according to the schedule defined in 40 CFR 58.16. These current regulations require that State and local air quality management age ncies report their data within 90 day s after the end of the quarter during which the data were collected. The annual SLAMS report is submitted by July 1 of each ye ar for data collected from January 1 through December 31 of the previous year in accordanc e with 40 CFR 58.15. This certification applies to all SLAMS and all SPM monitoring data that have been submitted by July 1. The annual air quality surveillance network reviews are conducted and reports are submitted to the EPA on a schedule that is de termined by the affected State or local air quality management agency

and the EPA Regional Office. Ambient air quality

data and information are made available to the public at any time in various way s, including:

• Upon request to the appropriate EPA R egional office, or to the OAQPS;

• By Freedom of Information Act Request to the appropriate EPA Regional Office or the OAQPS;

• From the State or local air quality management agency

responsible for collecting the ambient air quality

data and information;

• By obtaining access, through appropriate EPA channels, to the AQS and AIRNow to obtain the data electronically ;

• Through EPA public reports, such as the annual “National Air Quality and Emissions Trends Report ” ; or

• Through the AIRNow data base and the AQI reporting mechanisms which include newspaper, television, Internet and other publicly available notices (see www.epa.gov/airnow).

6. ESTIMATING THE BURDEN AND COST OF THE COLLECTION 6(a ) Estimating Respondent Burden All activities listed w ith section 4 (b) (ii) of this ICR Supporting Statement are presented in Worksheet 1. The detailed burden and cost estimates for the different types of monitors are12

based on information provided in the updated version of Guidance for Estimating Ambient A ir Monitoring Costs for Criteria Pollutants and Selected Air Toxic Pollutants (prepared b y Desert Research Institute for the EPA Office of Air Quality Planning and Standards, Air Quality Assessment Division, Ambient Air Monitoring Group, January 2005). Th e cost estimates presented in this guidance document are based on existing literature and direct monitoring experience. The costs for equipment and supplies were verified with vendors. The monitoring costs are based on vendor quotes for the monitor ty pe that EPA expects respondents to use to comply with the requirements

. Costs for level of effort estimates are verified with selected State and local agencies. All cost values presented in the guidance document are adjusted to 2004 dollars, based on the av erage of the first two quarters. For use in preparing the burden estimates for this ICR, costs for the monitoring requirements were inflated to 20 1 1 , 2012 , and 2013

. The cost escalation factors were estimated based on the appropriate Gross Do mestic Product (GDP) price indices as reported in the report available at http://www.jsc. nasa.gov/bu2/inflateGDP.html . Tables showing the detailed burden estimate calculations are presented below . A summary of the averag e annual respondent burden costs follows. Worksheet 1: Annual Average Respondent Burden Estimates

Collection Activities Total Labor Hours Per Respondent Per Year (1 4 2 respondents) 1. Network design 4 2. Site installation 3 3. Sampling & anal ys is 9 4 4. Maintenance & repairs 67 5. Data management 38 6. Quality

assurance 108 7. Supervision 33

TOTAL 347

6(b ) Estimating Respondent Costs All activities listed with section 4 (b) (ii) of this ICR Supporting Statement are included in the Worksheet 2 . A summary of the average annual re spondent burden costs follows.13 Worksheet 2: Annual Average Respondent Cost Estimates

Collection Activities Total Labor Cost Per Respondent Per Year (1 4 2 respondents) 1. Network design $ 278 2. Site installation $ 2180 3. Sampling & anal ys is $ 4874 4. Maintenance & repairs $ 4662 5. Data management $ 2223 6. Quality

assurance $ 6776 7. Supervision $ 1961

TOTAL $ 22,954

6(c ) Estimating Agency Burden and Cost We estimated the Agency burden and cost by using current burden and cost of the ambie nt air monitoring program related to this collection. We included burden and cost for the OAQPS, the ten Regional Offices, and associated contract activities. The in

- house activities for this collection are completed b y a variety of individuals with a variety of salaries; therefore, we used the actual salary

as an average for computing the program costs. Actual contractor expenses were used for those activities completed using extramural resources. We estimated a total of 5, 431 hours and $ 390,054 total agency burden. 6(d) Estimating the Respondent Universe and Total Burden and Costs Worksheet 3 shows the total respondent hourl y burdens and costs which was taken from section 6(b) above for the estimated 14 2 respondents. The total labor burden for the respondents was estimated to be 49,474 hours at a total cost of $ 2,737,485.

Worksheet 3: Annual Total Respondent Labor Burden/Cost Estimates
Collection Activities Total Labor Hours Per Year Total Labor Cost Per Year 1. Network design 642 $ 40,932 2. Site installation 477 $ 20,540 3. Sampling & anal ys is 13,340 $ 587,87614

4. Maintenance & repairs 9,560 $ 531,671 5. Data management 5, 447 $ 315,730 6. Quality

assurance 15,339 $ 962 , 205 7. Supervision 4 , 669 $ 278 , 532

TOTAL 49,474 $ 2,737,485

6(e ) Bo ttom Line Burden Hours and Cost Tables (i ) Respondent Tally Respondent Total Annual Burden = 49 , 474 hours Respondent Total Annual L abor Cost = $ 2 , 737 , 485 Respondent Total Annual Cost for O & M = $ 234 , 520 Respondent Total Equipment/Contract Dollars = $ 289,002 Total Respondent Tally

= $ 3, 261 , 007 (ii) The Agency Tally Agency Total Annual Burden = 5,431 hours Agency Total Annual Cost = $ 390 , 054 (iii) Variations In The Annual Bottom Line

. We do not expect any

significant variations in the annual b ottom line for the ambient air monitoring networks for the clearance period requested.
6(f ) Reasons for Change in Burden EPA is proposing to revise the network design requirements for NO 2 to support changes to the primary

national ambient air quality standards (NAAQS) for NO 2 that are being proposed. For the purpose of this, ICR we have estimated the maximum potential burden for the options being considered in the proposed rule. The ICR burden estimates are associated with the current NO 2 monitoring portion of the approved ICR 2060

- 0084

– “Ambient Air Quality Surveillance.” 6(g ) Burden Statement The annual public reporting and recordkeeping burden for this collection of information is estimated to average 22 hours per response . Burden means the to tal time, effort, or financial15

resources expended b y persons to generate, maintain, retain, or disclose or provide information to or for a Federal agency. This includes the time needed to review instructions; develop, acquire, install, and utilize technol ogy and s ys tems for the purposes of collecting, validating, and verifying information, processing and maintaining information, and disclosing and providing information; adjust the existing way s to compl y with any previously

applicable instructions and requ irements; train personnel to be able to respond to a collection of information; search data sources; complete and review the collection of information; and transmit or otherwise disclose the information. An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currentl y valid OMB control number. The OMB control numbers for EPA's regulations are listed in 40 CFR part 9 and 48 CFR chapter 15. To allow comment on the Agency's need f or this information, the accuracy of the provided burden estimates, and an y suggested methods for minimizing respondent burden, including the use of automated collection techniques, EPA established a public docket for this ICR under Docket ID No. OAR

- 2008

- 0338 which has been available for public viewing at the Air and Radiation Docket and Information Center Docket in the EPA Docket Center (EPA/DC), EPA West, Room 3334 , 1301 Constitution Ave., NW, Washington, DC. The EPA Docket Center Public Reading Room is open from 8:30 a.m. to 4:30 p.m., Monday through Friday , excluding legal holiday s. The telephone number for the Reading Room is (202) 566

- 1744, and the telephone number for the Air and Radiation Docket and In formation Center Docket is (202) 566

- 1742. An electronic version of the public docket is available at www.regulations.gov. This site can be used to submit or view public comments, access the index listing of the contents of the public docket, and to access those documents in the public docket that are available electronically . When in the sy stem, select “search,” then key in the Docket ID Number identified above. The public was also advised to send comments to the Office of Information and Regulatory

Affairs, Office of Management and Budget, 725 17 th Street, NW, Washington, DC 20503, Attention: Desk Office for EPA.

PART B OF SUPPORTING STATEMENT
This section is not applicable to this I CR because statistical methods are not used in the data collection associated with the rule amendments

.