Ll N DA Ll NGLE GOVERNOR EXECUTIVE CHAMBERS HONOLULU November 15,2010

Mr. Jared Blumenfeld Regional Administrator U.S. EPA, Region iX 75 Hawthorne Street

SUBJECT: ~ecom~ded Designation for the Newly Promulgated 1-HourFederal Nitrogen Dioxide (NO?)National Ambient Air Quality Standard (NAAQS) Pursuant to Section 107(d)(l)of the Clean Air Act, I am recommending that tlie City and County of Ho~iolulu (island of Oahu) be designated in attainment of thel-hourNO2NAAQS, and all other counties in tlie state be designated asunclassifiable. The Department of Health (DOH), which manages the ambient air monitoring network, has determined that the quality-assured NO2data for the calendar years 2007 through 2009 is in attainment with the new federal NO2standard. The state has two air monitoring stations located in the City and County of Honolulu using Federal Reference Method saliiplers for the collection of NO2data. Attachment I contains data summaries from these stations for the 3-year 1-hour standard design value. The Kapolei station was shut down in April 2008 for needed station repairs and therefore has an incomplete 1 -hour NO2design value for the year 2008. However, Kapolei was determined to be in attainment of the 1-hour NO2NAAQS when the 3-year design value was calculated using the data substitution method in accordancewith 40 CFR Part 50, Appendix S. Additionally, tlie DOH will comply with the requirements of 40 CFR Part 58, Appendix D, and establish one near-road NO2monitoring station by January 1, 2013. Based on contilluous compliance with all criteria pollutant NAAQS and ongoing monitoring of air pollution sources, the DOH has determined that there are no anticipated changes or activities that would cause a significant variation from the currently measured NO2values. We therefore ask for EPA's consideration of our recommendation for attainment of the NO2standards for the City and County of Honolulu. We look forward to working with EPA Region IX on the final NO2designation. If you have any questions, please contact Mr. Wilfred Nagamine at tlie DOH, Clean Air Branch, at (808) 586-4200.

Attachment 

# U Sincerely, 

# &-

LINDA LING E 

# LJ

c: Deborah Jordan, Director, Air Division (AIR-I), U.S. EPA, Region IX Gwen M. Yoshimura, Air Quality Analysis Office (AIR-7), U.S. EPA, Region IXState of Hawaii Appendix I:Attainment of the NO2NAAQS

### ATTACHMENT 

### I State of Hawaii Attainment Recommendation of the I-Hour Nitrogen Dioxide (NO2) National Ambient Air Quality Standard (NAAQS) I. 

### Introduction The EPA s~~pplemented the existing primary health-based annual standard with a new ?-hourNO2standard effectiveJanuary 22, 2010. Pursuant to the Clean Air Act 

### 107jd) (I 

### j, states are required to make attainment, nonattainmentor unclassifiable recommendations one year after promulgationof a new standard. The state's two NO2mor~itors are located in the City and County of Honolulu,which encorrlpassesthe island of Oahu. Currently, there is no NO2monitoring in the counties of Kauai (islands of Kauai and Niihau), Maui (islands of Maui, Molokai, and Lanai), Kalawao (Kalaupapa settlement) or Hawaii (island of Hawaii). This document provides NO2data collected at the Kapolei and West Beach air monitoring stations supportingattainment of the new I-hour NO2standard for the City and County of Honolulu. II. 

### Attainment of the I-Hour NO:, NAAQS A. NO2Air MonitoringSta,tionsand Sarrlpling Method

B. Data Computation Table 1. Summary of NO2Sampling in the State of Hawaii

All data handling conventions and corrlputationswere accordingto 40 CFR 50 Appendix S: Interpretationofthe Primary National AmbientAir Quality Standards for Oxidesof Nitrogen (Nitrogen Dioxide). Station Kapolei West Beach



### Quality assured and certified NO2data collected in the most recent three years (2007 to 2009) were used to determine attainment of the NO2standards. In April 2008, the Kapoleistationwas shut-down for necessary repairs and maintenance. As a result, the second quarter of 2008 did not meet the 75% 

### completeness requirement. However, after using the data substitution test for incompletedata year (Appendix S 3.2(c)(ii)(B)), the I-hour primary standard design value for 2008 was determined to be valid. AIRS 

### ID 15003001 0 15003001 1



### Page 1 of 2 Location Kapolei, Oahu KO Olina, Oahu 

### MSA Honolulu Honolulu. 

### NO2Method FRM ChemiluminescentAnalyzer FRM ChemiluminescentAnalyzerState of Hawaii Appendix I: Attainment of the NO2 NAAQS 

### 1. 

### I -Hour NO2 Design Values and Completeness Attainment of the I-hour NO2NAAQS is calculated per 40 CFR 

### part 50 Appendix S, as follows: The I-hour primary standard design value is the 3-year average of the annual 9athpercentile daily maximum 

### I -hour values for a 

### monitoring site; The I-hour primary NO2NAAQS is met at a site when the valid I-hour primary standard design value is less than or equal to 100 ppb (Table 1); and, An NO2 I-hour primary standard design value is valid if it encompasses three consecutive calendar years sf compiete data (Table 2); A year is complete when all 4 quarters have at least 75% data capture;

If any of the years do not meet completeness requirements, the standard design value will be considered valid if the "test design value" as calculated in 3.2(c)(ii)(B) is below the level of the NAAQS (Table 3).

The data substitution test was applied to the second quarter of 2008 for the Kapolei station. Since the I-hour primary standard design value was below the level of the NAAQS, itwas validated using method 3.2(c)(ii)(B) and resulted in a test design value below the level of the NAAQS. Therefore, the actual design value is valid. Table 3 summarizes the results of the data substitution test. Table 1. I-Hour DesignValue: 2007 to 2009

Table 3. Calculation of Test Design Value for Second Quarter 2008 at the Kapolei Air ~onit&in~ Station (1

### 50030010) 

## I Max I-hourvalue: 

### 1 Max I-hour value: 

### I Value used in 

### I Recalculated981n 

### 1 Test desian value 

### 1 Kapolei West Beach 

### 2007 26 PPb 24 PPb



### The City and County of Honolulu (island of Oahu) is in attainment of the I-hour NO2 NAAQS. Kauai, Maui, Kalawao, and Hawaii counties are unclassifiable. 3-year average 26 ppb 23 ppb 

### 2008 26 PP~ 18 PPb

Q2 2008

17 PPb



### Page 2 of 2 2009 26 PP~ 26 PPb

Q2 2007-2009 30 PPb substitution 30 PPb percentile value 30 PPb 400ipb? Yes, therefore actual design value is valid