## 6RA. .......(.....68ar 6DRA.....11.....6wo
6MD..... j.......6SF'.

Bill Richardson Governor 

# State

of New Mexico offíce of {teÇwernor
Júy30,2007

Mayor RichardGreene RegionalAdministrator U.S. EnvironmentalProtectionAgency, Region6 1445Ross

Avenue,Suite1200 Dallas,Texas7 5202-27 33

DearMayor Greene,

Enclosedfor your review, please f,rnd a New Mexico StateImplementationPlan(SIP) revision submitted to satisfy

the iequirements

of the Clean

Air Act, Section110(a)(2)(D)(i), fortheNationalAmbientAir euality Standarås

(NAAQS) for 8-hourozoneandparticulatematter,2.5micronsor less(PMz.s) promulgated in July 1997.

When aNAAQS is promulgated,the CleanAir Act requiresa state to submita SIPrevisionto address
interstate

transportof emissions thatwould affect non-attainment andmaintenance

areas in neighboring
states.

Therearefour components of $I 10(a)(2)(D)(i)addressed by the enclosed

SIPrevision.The first fwo components

demonstrate

adequate

provisionsto prevent emissions from New Mexico from interfering
with attainmentor maint"nunò"of thefederalNAAQS in anyotherstate. In thethird component,New
Mexico showsemissions within the statedo not interferewith anotherstate's programto prevent significant deteriorationof its air quality. Thefinal componentof the SIPsubmittaldiscusses the influenceonvisibility from emissionsin New Mexico.

We look forward to the U.S. EnvironmentalProtectionAgency'sapprovalof this SIPrevision and continuing ourwork togetherto maintainNew Mexico's air quality. If you havequestionsaboutthe SIP revision,pl"ur" contaciAndy Bergerof the New Mexico EnvironmentDepartment's Air Quality Bureau 

### at(50s) 95s-8034.
Sincerely,

Bill Richardson Governor

ofNew Mexico



### BR/zw

cc: Ron Curry,Secretary, NewMexicoEnvironment Department Jim Norton, Director, EnvironmentalProtectionDivision Mary I-Ihl,Chief,Air QualitYBureau

StateCapitol

.Room400. SantaFe,NewMexicoST50l'505-476-2200' www.governor.state.nm.us

# New Mexico State Interstate Transport SIP Submitted to EPA July 30, 2007

Appendix D, Exhibit 9 Modeling Data and Report for New Mexico From EPA Regions 6 and 7 for Ozone

This page added by EPA Region 6

# 110(a)(2)(d)(i) Modeling
Technical Support Document

## INTRODUCTION
A Transport State Implementation Plan (SIP) is required by the Clean Air Act Amendments 110(a)(2)(d)(i). To assist the state of New Mexico in providing a technical analysis to base the determination of Transport impacts from ozone and ozone pre-cursors, EPA Regions 6 and 7 conducted some modeling with 2002 third quarter CENRAP modeling dataset.EPA’s CAIR modeling for PM-2.5 indicated that significant transport ofPM-2.5 and PM-2.5 precursors is not expected to occur in relation to the 110(a)(2)(d)(i) requirements.
While Transport SIPs should be based on 2010 emission levels, a 2010 dataset was not available for the CENRAP modeling data. An assumption that emissions and New Mexico’s potential transport impact would be equal or lower in 2010 compared to 2002 for emissions from New Mexico is part of the premise of this test. On August 15, 2006, EPA issued final guidance to states for preparation of SIPs that satisfy the 110(a)(2)(D)(i) requirements, and, on September 11, 2006, added a supplement to the guidance.
While impacts from other states on nonattainment areas and areasthat are nearnonattainment were included inthis report, a couple ofcaveats exist. First caveat, is that this analysis is based on a 2002 emissions and is likely a conservative estimate of potential transport impacts in2010 (i.e. the existence of significant transport levels in 2002 does not concludethat significant transport would occur in 2010 as many federal measures will result in lower emission levels in 2010). Second caveat is some of the areas identified in this analysis are not required to be considered for potential transport concerns in accordance with EPA’s 2006 guidance documents. Third caveat, analyses was only conducted for predicted exceedances of 85 ppb, and the modeling seems to be underpredicting peak ozone levels. For example, no ozone exceedances were predicted for the areas of El Paso and Phoenix, so no contribution analysis was conducted.

2

## 2002 Base Year Ozone Modeling

A. Photochemical Model Air quality modeling analyses for ozone wereconducted by USEPA Regions 6 and 7 with the Comprehensive Air Quality Model with Extensions (CAMx). CAMx is a non-proprietary computer modeling tool that can be used to evaluate the impacts of proposed emissions reductions on future air quality levels. CAMx has been extensively used in the development of State Implementation Plan (SIP) revisions for bot h ozone and fine particulate matter, and was relied upon by USEPA as part of NOx SIP call and Clean Air Interstate Transport Rule (CAIR). Version 4.31 of the CAMx model was employed for these analyses. For more information on the CAMx model, please see the model user’s guide (Environ, 2006) available at http://www.camx.com.
The modeling analyses were completed for a continental United States domain at 36 km resolution. CAMx was applied and evaluated over the summer of 2002 (July-September). The model outputs from the 2002 base year and current air quality data, were used to: 1) assess the potential for transport of ozone and ozone precursors, and 2) determine the contribution from transport to future 8-hour ozone nonattainment.


## B. Modeling Domain and Grid Configuration As with episode selection, there are also several considerations involved in selecting the domain and grid configuration to be used in the ozone modeling analysis. The modeling domain should encompass the area of intended analysis with an additional buffer of grid cells to minimize the effects of, sometimes uncertain, boundary condition inputs. When possible, grid resolution should be equivalent to the resolution of the primary model inputs (emissions, winds, etc.) and equivalent to the scale of the air quality issue being addressed. The CAMx modeling was performed on the 36 km national grid established by mutual agreement between the regional planning organizations in 2002 (Figure B-1).

3Figure B-1. Photochemical modeling domain for 110(a)(2)(D) modeling project.


### C. Meteorological Inputs In order to simulate the formation and transport of pollutants, CAMx requires meteorological inputs such as wind, temperature, pressure, as well as other derived meteorological parameters which describe the dispersive characteristics of the atmosphere.
The meteorological data for the summer of2002 was developed using the fifth generation Pennsylvania State University/National Center for Atmospheric Research (PSU/NCAR) Mesoscale Meteorological Model (MM5),version 3.63 (Grell, et al., 1994). MM5 is a numerical meteorological model that solves the full set of physical and thermodynamic equations which govern atmospheric motions. The output data from MM5, if found to be of suitable quality based upon statistical and graphical performance evaluation, is processed through the MM5CAMX program. MM5CAMX extracts the u and v wind vector components, temperature, water vapor mixingratios, air pressure, and precipitation. MM5CAMx also computes derived variables such as cloud cover and vertical diffusivity. All of the extracted and derived meteorological variables are mapped to the CAMx grid.

Table B -1 MM5 Physics Options for CENRAP 2002 Annual MM5 Simulation 

### Model Parameter Physics Option Selected Cumulus Kain-Fritsch II Planetary Boundary Layer Pleim-Xu/ACM LSM PBL Moisture Microphysics Reisner I Radiation RRTM FDDA Analysis Nudging (Default Coefficient Strength)

4

### MM5 was run with a single domain with a resolution of 36 km covering the continental United States for the 2002 calendar year. The CENRAP MM5 simulations carried 34 vertical layers from the surface to 100 mb.
CENRAP conducted a statistical model performance evaluation (Morris, et al., 2005) that was completed for a portion of 2002 meteorological modeling period. In general, it was found that the CENRAP 36 km MM5 results were within range of acceptable statistical performance measures and deemed acceptable for use in photochemical modeling. A regional negative temperature bias was observed over the northern United States during winter months, but this appears to be a common artifact observed across numerous MM5 simulations in the US. Please refer to Appendix A for more information regarding CENRAP 2002 MM5 performance.
Consistent with the technical analysis for the Clean Air Interstate Rule (CAIR), EPA Regions 6 and 7 used the source apportionment technique as part of the modeling analysis to evaluate the downwind contributions of emissions in upwind States. This is achieved by using multiple tracer species to track the fate of ozone precursor emission (VOC and NOx) and the ozone formation caused by these emissions within a CAMx simulation. The methodology is designed so that all ozone and precursor concentrations are attributed to the selected source areas/categories at all times. Thus, for allreceptor locations and times, the ozone, VOC, and NOx concentrations predicted by the CAMx are attributed to the source areas/categories selected for analysis. EPA used the ozone source apportionment tool (OSAT) option for the 110(a)(2)(D) source apportionment modeling. The key feature of OSAT is that it allocates the ozone production to the manmade precursor emissions, either through reactions among various manmade sources and/or through reactions between manmade emissions and biogenic emissions. Additional information on the source apportionment technique can be found in the CAMx User’s Guide (Environ, 2006).
In the CAIR modeling analysis, EPA found that the source apportionment modeling tends to show greater magnitude and frequency of contributions than the zero-out modeling for individual linkages (USEPA, 2004). There is no technical evidence showing that one technique is clearly superior tothe other for evaluating contributions to ozone from various emission sources; therefore, both approacheswere given equal consideration in the significance analysis for the CAIR modeling.
Given the time constraints for the development of technical analyses supporting the 110(a)(2)(D) SIP revision process, source apportionment modeling with CAMx was chosen as the preferred alternative. The OSAT source apportionment technique in CAMx was developed to provide modelers with a means of estimating the contributions of many different source areas/categories to ozone formation in one single model run. Given that no evidence is available to suggest that zero-out modeling is a technically superior apportionment technique, OSAT modeling was chosen as the basis for determining potential linkages between state emissions and downwind nonattainment.

5

### D. CAMx Model Evaluation and Selection for Transport Analysis

The goal of the 2002 Base Year modeling was to reproduce the atmospheric processes resulting in high ozone concentrations over the continental United States during the ozone season. The ozone model performance evaluationprocedures and results are provided in Appendix B of this document.

E. Ozone Contribution Factors and Metrics
In the CAIR modeling analyses, EPA selectedseveral metrics to quantify the projected downwind contributions from emissions in upwind States. The metrics were designed to provide information on three f undamental factors for evaluating whether emissions in an upwind State make large and/or frequent contributions to downwind nonattainment. These factors are: a) the magnitude of the contribution, b) the frequency of the contribution, and c) the relative amount of the contribution.
The magnitude of contribution f actorrefers to the actual amount of ozone contributed by emissions in the upwind State tononattainment in the downwind area. The frequency of the contribution refers to how often contributions above certain thresholdsoccur. The relative amount of the contribution is used to compare the total ozone contributed by the upwind State to the total amount ofnonattainment ozone in the downwind area. These factors are the basis for the four separate metrics that can be used to assess a particular impact. These metrics are described below for the source apportionment modeling. Table E-1 lists the four metrics used for the factors identified.

6Table E-1. Contribution Factors and Metrics 

### Factor Source Apportionment Metrics Screening Threshold Magnitude of Contribution 1. Maximum contribution; and 2. Highest daily average contribution (ppb and percent) < 2 ppb
< 2 ppb or < 1% contribution Frequency of Contribution 3. Number and percent of exceedanceswith contributions in various contribution ranges NA

Relative Amount of Contribution 4. Total average contribution to exceedance ozone in the downwind area NA

Explanation of Source Apportionment Metrics
Despite the fundamental differences between the zero out and source apportionment techniques, the definitions of the source apportionment metrics are generally similar to the zero out metrics. One exception is that all 8-hour periods with averages above or equal to85 ppb are considered in the source apportionment metrics, as opposedto just the peak 8-hour average per day. Similar analyses completed as part of the NOx SIP call concluded that the differences resulting from considering only daily maximum 8-hour averages (zero out) versus considering all 8-hour periods (source apportionment)was very small and did not influence the significance determinations. Therefore, the number of “exceedance periods” are the total number of 8- hourly predicted concentrations greater than or equal to 85 ppb withinthe downwind area on a cell-by cell basis. Using the Kansas City MSA receptor area as an example, the maximum possible number of exceedances for this area is 7,820 (5 cells * 92 days * 17 eight-hour averages per day). The actual number of exceedance periods for this area was 216. For a given upwind State to downwind nonattainment receptor linkage, the Maximum Contribution Metric (metric 1) is the highest contribution fromamong the contributions to all exceedances at the downwind receptor.
The Highest Daily Average Contribution Metric (metric 2) is determined for each day with predicted exceedances at the downwind receptor. The metric is calculated by first summing the contributions for that linkage over all exceedances on a particular day, then dividing by the number of exceedances on that day to produce a daily average contribution to nonattainment.
The daily average contribution values across all days with exceedances are examined to identify the highest value which is then selected for use in the determination of significance. We also express this metric as a percent by dividing the highest daily average contribution by the corresponding ozone exceedance concentration on the same day.

The Frequency of Contribution Metric (metric 3) for the source apportionment technique

7

### is also determined in a similar way to which thismetric is calculated for the zero-out modeling. Looking at the impact of New Mexico emissionson Chicago as an example, 8 of the 459 exceedance hours (1.74 percent) were reduced by at least 2 ppb.
The Total Average Contribution Metric is determined for all 92 days combined. There are three parts to the calculation of this metric. In step1, the ozone values for each of the exceedance periods in a particular downwind area are summed over the episode(s). In step 2, the total ozone from the previous step that is due to anthropogenic sources is calculated based on the source apportionment results. In step 3, the contributions from a given source region to this downwind area are summed over the exceedance periods. The total contribution calculated in step 3 is then divided by the total ozone resulting from manmade sources in step 2 to determine the fraction of ozone that is dueto emissions from the upwind source area. This fraction can be multiplied by 100 to express the result as a percentage. For example, for the 1173 exceedance periods in DFW there is a total of 90,940.89 ppb of ozone. Of the total base ozone, the source apportionment results indicate that 112,122.81 ppb is due to anthropogenic sources. The sources in New Mexico contribute a total of 71.9 ppb which is 0.07 percent of the base case total (i.e., 71.9 divided by 112,122.81).

8

### F. Basis for Identifying which Linkages are Significant
As delineated in the CAIR modeling technical support document, EPA compiled the 8-hour

metrics by downwind nonattainment receptor county (referred too below as “downwind area”) in order toevaluate the contributions to downwind nonattainment in 2010. As previously discussed, dueto the limitations inthe availability of emission inventory data for 2010, emissions from the 2002 base year were selected because they were readily available from CENRAP RPO. The source apportionment contribution metrics were reviewed to determine how large of a contribution a particular upwind State makes to nonattainment in each downwind area in terms of the magnitude of the contribution, the frequency ofthe contributions, and the relative amount of the total contribution. Determining whether a particular linkageindicated a significant amount of transport from an upwind source State to a downwind county is a three step process.
The first step in evaluating the contribution f actors was to screen out linkages for which the contributions were clearly small. This initial screening was based on: 1) a maximum contribution of less than 2 ppb from either of the two modeling techniquesand/or, 2) a percent of total nonattainment ofless than 1 percent. For this analysis only the source apportionment analysis was conducted (not the zero-out technique as done in the CAIR analysis). Any upwind State that contributed toa particular downwind area in amounts that were less than the screening criteria was considered not to make a significant contribution to that downwind area. As an example, Nebraska had a maximum contribution of 2.2 ppb on the Chicago MSA in the source apportionment, however, the percent of total nonattainment metric was less than 1 percent (0.36% contribution overall). Therefore, according to the CAIR screening metrics, Nebraska would be concluded notto have a significant impacton nonattainment in Chicago as a result of the initial screening. Nebraska also had a maximum contribution of 5 ppb on Denver in the source apportionment and the percent of total nonattainment metric for Denver was 1 percent. This linkage was carried on for further analysis.
Those linkages that had contributions which exceeded the screening criteria were evaluated further in steps 2 and 3. In step 2 we evaluated the contributions in each linkage based on the source apportionment modeling. In step3 we considered the results of both step 1 and step 2 to determine which of the linkages are significant. EPA determined whether the linkage is significant by evaluating the magnitude, frequency, and relative amount of the contributions. Each upwind State that made relatively large and/or frequent contributions to nonattainment in the downwind area, based on these factors, is considered as contributing significantly to nonattainment in the downwind area.

However, there had to be at least two different factors that indicate large and/or frequent contributions in order for the linkage to be f ound significant. In this regard, the finding of a significant contribution for an individual linkage was not based on any single factor. As indicated above, in step 3 we considered the results of evaluating the source apportionment contributions from step 2. For some of the linkages, however, not all of the factors are consistent. For upwind-downwind linkages in which some of the factors indicate high and/or frequent contributions while other factors do not, EPA considered the overall number and

9

### magnitude of those factors that indicate large and/or infrequent contributions compared to those factors that do not. As part of the process of evaluating these types of linkages, we required that two of the three factors had to indicate large and frequent contributions for one of the modeling techniques and large and/or frequent contributions for at least one factor in the other modeling technique in order to find that the linkage was significant. Thus, based on an assessment of all the factors in such cases, EPA determined that the upwind State contributes significantly to nonattainment in the downwind area if, on balance, the factors indicate large and frequent contributions from the upwind State to the downwind area.

G. Results of Interstate Ozone Contribution Analysis
Using the procedures described in Section F of this document, EPA determined that New Mexico did not contribute significantly to nonattainment in specific downwind nonattainment areas. These areas are examined in Tables G-1 through G-4. In each case, the application of the CAIR source apportionment modeling metrics developed by EPA yielded consistent results showing that New Mexico does not contribute significantly to downwind nonattainment to existing 8-hour ozone nonattainment and maintenance areas in the Central United States.

Table G-1. Evaluation of Contribution to Downwind Nonattainment in Dallas/Fort Worth, TX. 

### Receptor Steps Evaluation of Contribution DFW Step 1:Evaluation of Contributions Against Screening Criteria 

### • Highest daily average impact (0.4 ppb) and percentage contribution (0.4%) from New Mexico did not exceed screening criteria thresholds. These values are less than 2 ppb and 1% respectively, so did not proceed forward to step 2. Step 2: Evaluation of Contributions from Source Apportionment Modeling • Not Done.

Step 3: Final Determination of Significance • Insignificant contribution to DFW nonattainment based upon small and infrequent impacts.

10Table G-2. Evaluation of Contribution to Downwind Nonattainment in Houston (HGB). 

### Receptor Steps Evaluation of Contribution Houston Step 1:Evaluation of Contributions Against Screening Criteria 

### • Highest daily average impact (0.2 ppb) and percentage contribution (0.07%) from New Mexico did not exceed screening criteria thresholds. These values are less than 2 ppb and 1% respectively, so did not proceed forward to step 2. Step 2: Evaluation of Contributions from Source Apportionment Modeling • Not Done.

Step 3: Final Determination of Significance • Insignificant contribution to Houston (HGB) nonattainment based upon small and infrequent impacts.

Table G-3. Evaluation of Contributionto Downwind Nonattainment in St. Louis. 

### Receptor Steps Evaluation of Contribution St. Louis Step 1:Evaluation of Contributions Against Screening Criteria 

### • Highest daily average impact (0.4 ppb) and percentage contribution (0.05%) from New Mexico. These values are less than 2 ppb and 1% respectively, so did not proceed forward to step 2. Step 2: Evaluation of Contributions from Source Apportionment Modeling • Not Done

Step 3: Final Determination of Significance • Insignificant contribution to St. Louis nonattainment based upon small and infrequent impacts

11Table G-4. Evaluation of Contribution to Downwind potential Nonattainment in San Antonio 

### Receptor Steps Evaluation of Contribution San Antonio Step 1:Evaluation of Contributions Against Screening Criteria 

### • Highest daily average impact (0.1 ppb) and percentage contribution (0.1%) from New Mexico exceeded screening criteria thresholds and were carried forward to step 2. Step 2: Evaluation of Contributions from Source Apportionment Modeling • Not Done

Step 3: Final Determination of Significance • Insignificant contribution to San Antonio potential nonattainment based upon small and infrequent impacts

12

### Appendix A MM5 Performance Evaluation

13

### January Performance Statistics

14

### CENRAP / VISTAS / WRAPJanuary Humidity Performance Comparison Over CENRAP Domain

0 0.5

1 1.5

2 2.5

3

-1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 Humidity Bias (g/kg)Humidity Error (g/kg)

Benchmark CENRAP VISTAS WRAP i CENRAP N

CENRAP S



### CENRAP / VISTAS / WRAP January Wind Performance Comparison over CENRAP Domain

0 10 20 30 40 50 60 70 80

0 0.5 1 1.5 2 2.5 3 Wind Speed RMSE (m/s)Wind Direction Error (m/s)

Benchmark CENRAP VISTAS WRAP i CENRAP N

CENRAP S



### 15CENRAP / VISTAS / WRAP January Temperature Performance Comparison Over CENRAP Domain

0 0.5

1 1.5 2 2.5

3 3.5

-2 -1.5 -1 -0.5 0 0.5 1 Temperature Bias (K)Temperature Error (K)

Benchmark CENRAP VISTAS WRAP i CENRAP N

CENRAP S



### 16

### 17

### July Performance

18

### CENRAP / VISTAS / WRAP July Humidity Performance Comparison Over CENRAP Domain

0 0.5

1 1.5

2 2.5

3

-1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 Humidity Bias (g/kg)Humidity Error (g/kg)

Benchmark VISTAS WRAP CENRAP CENRAP N

CENRAP S

CENRAP / VISTAS / WRAP JulyWind Performance Comparison Over CENRAP Domain

0 10 20 30 40 50 60 70 80

0 0

.51 1

.52 2

.5 Wind Speed RMSE (m/s)Wind Dierction Error (m/s)

3

Benchmark VISTAS WRAP i CENRAP CENRAP N

CENRAP S



### 19CENRAP / VISTAS / WRAP July Temperature Performance Comparison Over CENRAP Domain

0 0.5

1 1.5

2 2.5

3 3.5

-2 -1.5 -1 -0.5 0 0.5 1 Temperature Bias (K)Temeprature Error (K)

Benchmark VISTAS WRAP i CENRAP CENRAP N

CENRAP S



### 20

### Appendix B Model Performance Evaluation CENRAP 2002 Base B Emissions

21

### An operational model performance evaluation for surface ozone for the third quarter of 2002 (July – September) was performed by regional modeling program at the University of California-Riverside under cont ract to CENRAP in order to estimate the ability of the modeling system to replicate base year ozone and fine particulate concentrations. This evaluation will focus upon the performance of the modeling system to replicate ozone formation. This evaluation is comprised principally of statistical assessments of model versus observed pairs. The robustness of an operational evaluation is directly proportional to the amount and quality of the ambient data available for comparison.

a. Statistical Definitions

Below are the definitions of those statistics used for the evaluation. The format of all the statistics is such that negative values indicate model ozone predictions that were less than their observed counterparts. Positively-valued statistics indicate model overestimation of surface ozone. Statistics were not generated for the first three days of an episode to avoid the initialization period. The statistics were calculated for the entire CENRAP domain. The statistics that were calculated are described below.
Domainwide unpaired peak prediction accuracy: This metric simply compares the peak concentration modeled anywhere in the selected area against the peak ambient concentration anywhere in the same area. The difference of the peaks (model - observed) is then normalized by the peak observed concentration.
Peak prediction accuracy: This metric averages the paired peak prediction accuracy calculated for each monitor in the region. It characterizes the capacity of the model to replicate peak (afternoon) ozone over a region. The daily peak model versus dailypeak observed residuals are paired in space but not in time.
Mean normalized bias: This performance statistic averages the normalized (by observation) difference (model - observed) over all pairs. A value of zero would indicate that the model over predictions and model under predictions exactly cancel each other out.
Mean normalized gross error: The last metric used to assess the performance of the CENRAP base cases is similar to the abovestatistic, except in this case it is the absolute value of the residual which is normalized by the observation, and then averaged over all sites. A zero gross error value would indicate that all model concentrations exactly matched the ambient values.

b. Domainwide Model Performance
The ability of the CAMx model predictions toreplicate observed concentrations varies by day and location over the CENRAP modeling domain. Observing model performance solely from a qualitative perspective, there appears to be considerable similarity on most days between the observed and simulated ozone patterns. As inthe case of the CAIR modeling, when it is possible to discern, the model appears to follow the day-to-day variations in synoptic-scale ozone fairly closely. Quantitative comparisons of the model predictions and ambient data are provided below.

22

### Hourly ozone is consistently underestimated domainwide, especially at the peak of the observed ozone distribution. The model does slightly better in replicating observed concentrations in the 40 ppb – 70 ppb range, with a consistent tendency towards underprediction at the higher concentrations (80 ppb and greater). Several possible factors contributing to model underprediction including:1) use of a 36 km model resolution, and 2) use of the CMAQ modeling system by UC-R for the performance analysis of the 2002 Base B inventory. Typically photochemical models underpredict peak observed values in an urban ozone network because at coarser resolutions they lack the definition in the local emissions gradient which often contributes to observed ozone peaks. The second factor, use of the CMAQ model, is more difficult to translate since statistics presented for the CENRAP 2002 Base B inventory are not from the CAMx modeling system. Traditionally, CMAQ has had better model performance for the simulation of fine particulate matter, but ozone performance has consistently lagged behind CAMx in direct model comparisons. Therefore, the use of the CMAQ statistical evaluation can be used to helpinform the performance of CAMx, but should not be used directly to determine the suitability of CAMx with the CENRAP Base B inventory.

23Table B – I. Hourly performance statistics for July CAMx simulation. Statistic O3 CO NO2 SO2
Fraction_Bias(%) 22.54261 - 84.55503 -2.70256 -19.52791 Fraction_GErr(%) 45.73763 89.98657 64.03193 81.05571 Ac_Paired_Peak -0.40362 -0.73255 -0.15338 -0.355
Norm_Mean_Bias(%) 17.55243 - 63.97655 0.60502 -1.05384 Norm_Mean_Err(%) 37.06093 67.59956 63.45919 88.36781
Mean_Norm_Bias(%) 92.92606 - 52.42324 52.67342 58.69197 Mean_Norm_GErr(%) 109.91456 60.41689 98.62555 123.55678 Mean_Bias 0.00532 -0.31353 0.00006 -0.00003 Mean_Abs_GErr 0.01124 0.33129 0.00611 0.00233 Geometric_Bias 0.2536 -0.98781 -0.03618 -0.24155 Geometric_Err 0.53201 1.04427 0.72853 0.96643 Root_Mean_SErr 0.01489 0.44488 0.00897 0.00361 Obs_Max 0.174 3.5 0.068 0.034 Pre_Max 0.10377 0.93607 0.05757 0.02193 Arith_Obs_Mean 0.03034 0.49007 0.00963 0.00263 Arith_Pre_Mean 0.03566 0.17654 0.00969 0.00261 Geome_Obs_Mean 0 0 0 0 Geome_Pre_Mean 0 0 0 0 Stand_Devi_Obs 0.02069 0.3062 0.00823 0.00255 Stand_Devi_Pre 0.01803 0.10669 0.00832 0.00299 Corr_Variance 0.00022 0.19792 0.00008 0.00001 Coeff_Determi 0.56274 0.0071 0.16967 0.02496 Bias_Factor 1.92925 0.47577 1.52674 1.58692 Num_Points 15956 4784 12187 3421



### 24Table B – II. Hourly performance statistics for August CAMx simulation. Statistic O3 CO NO2 SO2
Fraction_Bias(%) 7.52819 - 87.49685 - 12.73677 -10.51964 Fraction_GErr(%) 45.44545 92.5224 65.34878 73.48346 Ac_Paired_Peak -0.46192 -0.88287 -0.13701 -0.53212
Norm_Mean_Bias(%) 2.1539 - 66.66081 -8.36802 1.05795 Norm_Mean_Err(%) 33.92863 69.60217 59.96339 78.0471
Mean_Norm_Bias(%) 66.56069 - 53.75061 33.50217 49.80844 Mean_Norm_GErr(%) 93.62855 61.87815 86.79572 105.58033 Mean_Bias 0.00073 -0.36847 -0.00094 0.00003 Mean_Abs_GErr 0.01146 0.38473 0.00675 0.00209 Geometric_Bias 0.07862 -1.03384 -0.15515 -0.13716 Geometric_Err 0.53676 1.08685 0.74192 0.85358 Root_Mean_SErr 0.01532 0.56073 0.0099 0.00311 Obs_Max 0.172 8.6 0.067 0.033 Pre_Max 0.09255 1.00732 0.05782 0.01544 Arith_Obs_Mean 0.03378 0.55275 0.01126 0.00268 Arith_Pre_Mean 0.03451 0.18428 0.01032 0.0027 Geome_Obs_Mean 0 0 0 0 Geome_Pre_Mean 0 0 0 0 Stand_Devi_Obs 0.02107 0.41927 0.00967 0.00245 Stand_Devi_Pre 0.017 0.11479 0.00944 0.00241 Corr_Variance 0.00023 0.31441 0.0001 0.00001 Coeff_Determi 0.48468 0.01141 0.21994 0.03278 Bias_Factor 1.6656 0.46249 1.33502 1.49808 Num_Points 15827 4940 11824 3449



### 25Table B – III. Hourly performance statistics for September CAMx simulation. Statistic O3 CO NO2 SO2
Fraction_Bias(%) 21.94467 - 81.44273 - 13.18538 17.65673 Fraction_GErr(%) 43.61423 87.70278 61.28941 71.23005 Ac_Paired_Peak -0.305 -0.82125 -0.29549 -0.3471
Norm_Mean_Bias(%) 12.47914 - 64.97016 - 10.03813 28.03314 Norm_Mean_Err(%) 33.80435 68.2096 56.14925 88.46379
Mean_Norm_Bias(%) 122.73198 - 50.03151 19.72901 93.61565 Mean_Norm_GErr(%) 139.77042 58.81277 70.8172 130.49443 Mean_Bias 0.00427 -0.34706 -0.00118 0.00078 Mean_Abs_GErr 0.01158 0.36436 0.0066 0.00245 Geometric_Bias 0.27534 -0.96735 -0.166 0.20451 Geometric_Err 0.52148 1.03195 0.68681 0.8127 Root_Mean_SErr 0.01539 0.56225 0.00993 0.00375 Obs_Max 0.164 6.5 0.102 0.031 Pre_Max 0.11398 1.16186 0.07186 0.02024 Arith_Obs_Mean 0.03424 0.53418 0.01176 0.00277 Arith_Pre_Mean 0.03852 0.18712 0.01058 0.00355 Geome_Obs_Mean 0 0 0 0 Geome_Pre_Mean 0 0 0 0 Stand_Devi_Obs 0.02191 0.44111 0.01045 0.00292 Stand_Devi_Pre 0.01673 0.12101 0.01011 0.00287 Corr_Variance 0.00024 0.31612 0.0001 0.00001 Coeff_Determi 0.54503 0.01601 0.29151 0.03743 Bias_Factor 2.22732 0.49968 1.19729 1.93616 Num_Points 15562 4892 12936 3284



### 26Figure B – I. Scatterplot of hourly model-observed ozone predictions for July 2002.



### 27Figure B – II. Scatterplot of hourly model-observed ozone predictions for August 2002.



### 28Figure B – III. Scatterplot of hourly model-observed ozone predictions for September 2002.



### 29

### Appendix C CAMx Source Apportionment Results

30

### Table C-1
Region contribution to each area

31Source Region = AL Highest Average Contribution SecondHighest Average Contribution Receptor

Area % total ppb total ppb date # values % total ppb total ppb date # values BTR 17.7 19 105 8/29/2002 21 13.1 13 101 8/30/2002 30 MEM 15.3 14 91 8/23/2002 3 15.2 14 93 8/22/2002 11 BPA 8.2 8 100 8/31/2002 41 7.8 8 101 8/30/2002 29 HGB 7.2 7 97 8/31/2002 135 7.2 7 92 9/15/2002 16 SAN 6.5 6 94 8/31/2002 25 4.7 4 90 9/6/2002 9 DFW 6.5 6 91 9/1/2002 23 6.2 6 94 9/5/2002 31 OKC 5.8 5 86 9/1/2002 1 5.7 5 88 8/5/2002 5 DEN 0.4 0 88 8/8/2002 2 0.4 0 87 8/7/2002 1 PHX 0 0 0 none 0 0 0 0 none 0 ELP 0 0 0 none 0 0 0 0 none 0 WI 7.4 7 92 9/20/2002 23 2.8 3 93 8/14/2002 10 STL 6.4 6 90 9/8/2002 7 3.5 4 101 9/9/2002 29 KC 4.9 4 87 9/9/2002 4 4.3 4 87 9/10/2002 1 CHI 2.7 2 89 9/9/2002 10 2.6 2 85 8/13/2002 1

Source Region = ARHighest Average Contribution SecondHighest Average Contribution Receptor

Area % total ppb total ppb date # values % total ppb total ppb date # values MEM 43 38 90 7/17/2002 4 33.4 30 91 7/10/2002 5 OKC 14.3 13 87 9/7/2002 2 12.6 11 87 8/31/2002 2 DFW 13.5 14 100 8/7/2002 56 13.4 13 95 8/8/2002 31 BPA 7.2 6 90 8/29/2002 18 4.8 5 97 9/12/2002 24 HGB 7 6 93 8/29/2002 57 4.9 5 103 9/12/2002 89 SAN 6.6 6 91 9/12/2002 9 4.7 4 89 8/30/2002 11 BTR 5.3 5 94 8/27/2002 13 4.8 4 87 8/26/2002 5 DEN 0.5 0 88 8/10/2002 1 0.4 0 91 8/11/2002 3 PHX 0 0 0 none 0 0 0 0 none 0 ELP 0 0 0 none 0 0 0 0 none 0 STL 15.6 14 93 8/19/2002 2 10.2 9 89 7/18/2002 5 KC 10.9 9 87 9/1/2002 4 10.4 9 87 9/9/2002 4 CHI 6.2 5 87 8/16/2002 4 5.5 5 85 8/13/2002 1 WI 5.5 5 95 8/13/2002 41 5.4 5 90 9/3/2002 15



### 32Source Region = BCHighest Average Contribution SecondHighest Average Contribution Receptor

Area % total ppb total ppb date # values % total ppb total ppb date # values DEN 48.5 42 87 6/30/2002 5 41.2 37 91 7/1/2002 10 OKC 22.1 19 86 8/6/2002 2 18.9 17 88 8/5/2002 5 BTR 19.8 18 92 7/17/2002 2 18.4 17 91 9/11/2002 8 DFW 19.5 17 88 9/10/2002 4 18 16 90 9/11/2002 13 MEM 19.3 17 88 9/13/2002 2 19 17 88 9/14/2002 2 HGB 18.9 16 86 7/23/2002 2 17.7 15 87 7/24/2002 2 SAN 14.2 13 91 9/12/2002 9 13.7 12 90 9/6/2002 9 BPA 13.5 13 95 9/11/2002 6 13.2 12 90 7/7/2002 16 PHX 0 0 0 none 0 0 0 0 none 0 ELP 0 0 0 none 0 0 0 0 none 0 CHI 28.3 25 87 7/14/2002 1 20.8 19 92 8/3/2002 7 STL 20.1 18 92 9/6/2002 14 20.1 18 88 7/7/2002 7 KC 19.7 17 87 9/10/2002 1 19.6 17 87 9/9/2002 4 WI 18.8 17 92 7/14/2002 6 14.1 12 85 9/18/2002 1

Source Region = COHighest Average Contribution SecondHighest Average Contribution Receptor

Area % total ppb total ppb date # values % total ppb total ppb date # values DEN 66.6 62 93 9/7/2002 2 63.6 60 94 9/8/2002 3 MEM 0.5 0 91 8/26/2002 2 0.5 0 94 8/25/2002 3 DFW 0.4 0 88 9/10/2002 4 0.4 0 89 8/28/2002 10 BTR 0.3 0 94 8/27/2002 13 0.3 0 87 8/26/2002 5 HGB 0.3 0 92 8/28/2002 24 0.2 0 93 8/29/2002 57 OKC 0.3 0 86 9/3/2002 1 0.3 0 86 9/4/2002 1 BPA 0.2 0 92 8/28/2002 7 0.2 0 92 8/27/2002 4 SAN 0.2 0 91 9/12/2002 9 0.2 0 94 9/13/2002 23 PHX 0 0 0 none 0 0 0 0 none 0 ELP 0 0 0 none 0 0 0 0 none 0 STL 0.6 0 88 8/25/2002 5 0.5 0 92 8/24/2002 6 KC 0.5 0 87 8/24/2002 1 0.4 0 88 8/11/2002 1 CHI 0.4 0 93 8/11/2002 6 0.3 0 85 8/24/2002 1 WI 0.4 0 89 8/21/2002 1 0.3 0 89 8/22/2002 9



### 33Source Region = Canada Highest Average Contribution SecondHighest Average Contribution Receptor

Area % total ppb total ppb date # values % total ppb total ppb date # values MEM 4.2 4 95 8/29/2002 18 3.7 3 89 8/28/2002 14 DFW 2.9 3 90 8/30/2002 20 1.5 1 96 8/9/2002 33 BPA 2.3 2 90 8/29/2002 18 0.9 1 101 8/30/2002 29 OKC 2.1 2 87 8/31/2002 2 1.7 1 86 8/29/2002 1 SAN 1.8 2 89 8/30/2002 11 0.8 1 94 8/31/2002 25 HGB 1.5 1 93 8/29/2002 57 1.4 1 100 8/30/2002 97 BTR 1 1 90 8/4/2002 9 0.9 1 93 8/28/2002 8 DEN 0.3 0 89 7/18/2002 6 0.3 0 88 8/10/2002 1 PHX 0 0 0 none 0 0 0 0 none 0 ELP 0 0 0 none 0 0 0 0 none 0 CHI 12.1 11 88 8/31/2002 6 11.3 10 88 8/30/2002 7 STL 11.6 10 86 8/29/2002 2 9.7 8 87 8/28/2002 4 WI 5.3 5 89 8/10/2002 1 5 5 93 7/30/2002 8 KC 2.6 2 90 8/9/2002 6 2.5 2 88 8/31/2002 4

Source Region = East Highest Average Contribution SecondHighest Average Contribution Receptor

Area % total ppb total ppb date # values % total ppb total ppb date # values MEM 35.6 34 95 8/29/2002 18 31.1 29 93 8/30/2002 22 BTR 21.9 20 90 8/4/2002 9 18.5 19 101 8/30/2002 30 DFW 17.5 16 94 8/31/2002 56 14.9 14 91 9/1/2002 23 BPA 16.5 15 90 8/29/2002 18 15.3 15 101 8/30/2002 29 HGB 16.2 14 86 9/1/2002 2 14.8 15 100 8/30/2002 97 OKC 14.3 13 88 8/5/2002 5 14.3 12 86 9/1/2002 1 SAN 14 13 94 8/31/2002 25 11.4 10 89 8/30/2002 11 DEN 1.4 1 88 8/8/2002 2 1.4 1 87 8/7/2002 1 PHX 0 0 0 none 0 0 0 0 none 0 ELP 0 0 0 none 0 0 0 0 none 0 CHI 30.6 27 88 8/31/2002 6 29 26 88 8/30/2002 7 STL 30 27 88 8/30/2002 5 25.1 22 86 8/29/2002 2 WI 21.7 20 92 9/1/2002 6 17.5 16 91 9/2/2002 10 KC 17.2 15 88 8/31/2002 4 17 15 87 9/9/2002 4



### 34Source Region = Gulf Highest Average Contribution SecondHighest Average Contribution Receptor

Area % total ppb total ppb date # values % total ppb total ppb date # values BTR 10.4 9 91 8/7/2002 18 7.9 7 93 8/6/2002 8 BPA 9.7 9 92 8/8/2002 8 9.3 8 88 8/9/2002 2 HGB 8.2 7 87 8/9/2002 1 7.5 7 92 9/15/2002 16 SAN 3.7 3 89 8/9/2002 1 3 3 94 8/31/2002 25 MEM 1.6 1 93 7/27/2002 2 1.1 1 91 8/23/2002 3 DFW 1.1 1 88 7/11/2002 16 0.9 1 90 9/3/2002 16 OKC 0.9 1 87 8/11/2002 2 0.7 1 89 8/10/2002 3 DEN 0.1 0 88 8/8/2002 2 0.1 0 87 8/7/2002 1 PHX 0 0 0 none 0 0 0 0 none 0 ELP 0 0 0 none 0 0 0 0 none 0 WI 1.3 1 92 9/20/2002 23 0.4 0 98 7/2/2002 13 STL 0.7 1 93 8/19/2002 2 0.4 0 89 7/18/2002 5 KC 0.6 1 87 7/4/2002 3 0.6 0 87 7/18/2002 3 CHI 0.5 0 87 8/16/2002 4 0.3 0 85 8/13/2002 1

Source Region = IA Highest Average Contribution SecondHighest Average Contribution Receptor

Area % total ppb total ppb date # values % total ppb total ppb date # values MEM 5 5 94 8/25/2002 3 4.9 4 91 8/26/2002 2 OKC 1.4 1 87 7/23/2002 3 1.2 1 87 7/13/2002 2 DFW 1.2 1 93 7/14/2002 26 1.2 1 93 7/15/2002 23 BTR 1.1 1 94 8/27/2002 13 0.7 1 93 8/28/2002 8 HGB 0.5 0 92 8/28/2002 24 0.3 0 103 9/14/2002 122 BPA 0.4 0 99 9/13/2002 44 0.4 0 92 8/28/2002 7 SAN 0.2 0 87 7/8/2002 4 0.1 0 87 7/9/2002 3 DEN 0.1 0 89 7/18/2002 6 0.1 0 88 7/19/2002 14 PHX 0 0 0 none 0 0 0 0 none 0 ELP 0 0 0 none 0 0 0 0 none 0 STL 11.8 10 88 8/25/2002 5 10.7 10 92 8/24/2002 6 CHI 10.2 11 105 7/18/2002 27 7.9 8 103 7/19/2002 16 WI 8.3 8 95 8/11/2002 13 7.6 6 85 7/19/2002 1 KC 2.4 2 90 8/3/2002 6 2.1 2 85 8/7/2002 1



### 35Source Region = IC Highest Average Contribution SecondHighest Average Contribution Receptor

Area % total ppb total ppb date # values % total total ppb ppb date # values DEN 0.3 0 87 6/30/2002 5 0.2 0 91 7/1/2002 10 DFW 0 0 96 7/7/2002 45 0 0 88 7/11/2002 16 MEM 0 0 95 7/2/2002 25 0 0 97 7/3/2002 28 OKC 0 0 91 7/10/2002 17 0 0 88 7/11/2002 11 BPA 0 0 90 7/7/2002 16 0 0 90 7/8/2002 14 HGB 0 0 88 7/7/2002 19 0 0 90 7/8/2002 34 BTR 0 0 88 7/8/2002 10 0 0 94 7/7/2002 31 SAN 0 0 87 7/8/2002 4 0 0 87 7/9/2002 3 PHX 0 0 0 none 0 0 0 0 none 0 ELP 0 0 0 none 0 0 0 0 none 0 WI 0.1 0 107 7/1/2002 67 0.1 0 98 7/2/2002 13 CHI 0.1 0 106 6/30/2002 18 0 0 109 7/1/2002 7 STL 0 0 101 7/4/2002 49 0 0 104 7/3/2002 32 KC 0 0 87 7/5/2002 8 0 0 87 7/4/2002 3

Source Region = IL Highest Average Contribution SecondHighest Average Contribution Receptor

Area % total ppb total ppb date # values % total ppb total ppb date # values MEM 13.2 12 90 8/7/2002 3 11.6 11 92 9/11/2002 11 OKC 5 4 88 8/7/2002 6 4.1 3 86 8/29/2002 1 DFW 3.4 3 90 8/30/2002 20 3 3 89 8/29/2002 13 BTR 3 3 96 9/12/2002 26 3 3 94 8/27/2002 13 BPA 2.9 3 97 9/12/2002 24 2.6 3 99 9/13/2002 44 HGB 2.3 2 93 8/29/2002 57 2 2 106 9/13/2002 189 SAN 2 2 89 8/30/2002 11 1.4 1 93 9/14/2002 10 DEN 0.2 0 88 8/10/2002 1 0.2 0 91 8/11/2002 3 PHX 0 0 0 none 0 0 0 0 none 0 ELP 0 0 0 none 0 0 0 0 none 0 CHI 66.2 72 109 7/1/2002 7 61.7 66 106 6/30/2002 18 STL 44.5 41 93 8/21/2002 15 42.5 38 88 9/16/2002 1 WI 39.7 36 90 7/9/2002 34 36.8 32 87 7/4/2002 2 KC 13.1 11 85 8/7/2002 1 11.1 10 91 7/7/2002 20



### 36Source Region = IN Highest Average Contribution SecondHighest Average Contribution Receptor

Area % total ppb total ppb date # values % total ppb total ppb date # values MEM 11 10 90 8/27/2002 10 10.2 10 99 7/6/2002 29 OKC 3.7 3 91 8/9/2002 3 3.4 3 92 8/8/2002 10 DFW 3.5 3 90 8/30/2002 20 2.2 2 89 8/29/2002 13 BPA 3.5 3 90 8/29/2002 18 2.2 2 97 9/12/2002 24 BTR 2.6 2 96 9/12/2002 26 2 2 95 9/13/2002 29 HGB 2.6 2 93 8/29/2002 57 2 2 100 8/30/2002 97 SAN 2.2 2 89 8/30/2002 11 1.6 1 93 9/14/2002 10 DEN 0.2 0 88 8/10/2002 1 0.1 0 91 8/11/2002 3 PHX 0 0 0 none 0 0 0 0 none 0 ELP 0 0 0 none 0 0 0 0 none 0 WI 24.5 21 85 9/18/2002 1 24.3 22 89 9/19/2002 26 CHI 20.6 19 92 9/7/2002 12 17 16 92 9/8/2002 25 STL 14.8 14 92 8/9/2002 4 14.4 13 92 9/6/2002 14 KC 6.7 6 91 7/7/2002 20 6.2 5 88 8/31/2002 4

Source Region = KSHighest Average Contribution SecondHighest Average Contribution Receptor

Area % total ppb total ppb date # values % total ppb total ppb date # values OKC 11.6 10 87 7/23/2002 3 9.8 8 87 7/13/2002 2 DFW 6 6 93 7/14/2002 26 5.9 5 93 7/15/2002 23 DEN 2.8 2 88 8/10/2002 1 2.5 2 91 8/11/2002 3 MEM 2.6 2 91 7/11/2002 6 1.4 1 94 8/25/2002 3 SAN 0.9 1 91 9/12/2002 9 0.7 1 94 9/13/2002 23 BTR 0.8 1 96 9/12/2002 26 0.7 1 95 9/13/2002 29 BPA 0.7 1 99 9/13/2002 44 0.6 1 96 9/14/2002 56 HGB 0.6 1 106 9/13/2002 189 0.6 1 103 9/14/2002 122 PHX 0 0 0 none 0 0 0 0 none 0 ELP 0 0 0 none 0 0 0 0 none 0 KC 44.3 38 87 8/24/2002 1 42.9 39 90 8/3/2002 6 STL 5.3 5 97 7/30/2002 17 4.2 4 96 7/10/2002 40 CHI 4.2 4 93 8/11/2002 6 3.2 3 96 7/29/2002 4 WI 3.8 4 98 7/2/2002 13 3.7 4 104 7/21/2002 17



### 37Source Region = KYHighest Average Contribution SecondHighest Average Contribution Receptor

Area % total ppb total ppb date # values % total ppb total ppb date # values MEM 13.4 13 94 7/5/2002 23 13.1 12 90 8/27/2002 10 BPA 6.2 6 90 8/29/2002 18 3.3 3 97 9/12/2002 24 BTR 3.8 4 96 9/12/2002 26 3.2 3 105 8/29/2002 21 HGB 3.5 4 100 8/30/2002 97 3.2 3 93 8/29/2002 57 DFW 3.5 3 89 9/7/2002 9 3.2 3 96 8/9/2002 33 OKC 3.4 3 91 8/9/2002 3 3.4 3 87 8/31/2002 2 SAN 3.3 3 91 9/12/2002 9 3.1 3 89 8/30/2002 11 DEN 0.1 0 91 8/11/2002 3 0.1 0 88 8/10/2002 1 PHX 0 0 0 none 0 0 0 0 none 0 ELP 0 0 0 none 0 0 0 0 none 0 STL 12.2 12 95 9/1/2002 8 11.4 11 97 8/4/2002 25 WI 6.3 6 89 9/19/2002 26 5 4 85 9/18/2002 1 CHI 4.6 4 92 9/8/2002 25 3.9 4 105 8/4/2002 34 KC 4.3 4 91 7/6/2002 13 4.1 4 88 8/31/2002 4

Source Region = LA Highest Average Contribution SecondHighest Average Contribution Receptor

Area % total ppb total ppb date # values % total ppb total ppb date # values BTR 75.2 70 93 7/19/2002 12 74.4 73 98 7/18/2002 15 BPA 38.9 34 88 7/9/2002 9 33.2 30 90 7/8/2002 14 HGB 18.9 18 95 8/8/2002 36 17.6 17 94 8/5/2002 24 SAN 16 14 89 8/9/2002 1 14.1 13 94 8/31/2002 25 MEM 14.7 14 93 7/27/2002 2 9.6 9 94 7/31/2002 4 DFW 14.4 13 94 9/5/2002 31 12.5 12 96 7/7/2002 45 OKC 8.2 7 91 9/5/2002 11 5.3 5 86 9/3/2002 1 DEN 0.5 0 88 8/8/2002 2 0.5 0 87 8/7/2002 1 PHX 0 0 0 none 0 0 0 0 none 0 ELP 0 0 0 none 0 0 0 0 none 0 WI 5.6 5 92 9/20/2002 23 2.4 2 95 8/13/2002 41 KC 3.7 3 87 7/4/2002 3 2.9 3 87 7/5/2002 8 STL 2.8 3 93 8/19/2002 2 1.3 1 92 8/20/2002 9 CHI 1.7 1 87 8/16/2002 4 1.6 1 85 8/13/2002 1



### 38Source Region = MI Highest Average Contribution SecondHighest Average Contribution Receptor

Area % total ppb total ppb date # values % total ppb total ppb date # values MEM 4.4 4 90 8/27/2002 10 1.9 2 89 8/28/2002 14 OKC 1.5 1 91 8/9/2002 3 1.5 1 92 8/8/2002 10 BPA 1.3 1 90 8/29/2002 18 0.5 0 92 8/28/2002 7 HGB 1 1 93 8/29/2002 57 0.6 1 100 8/30/2002 97 DFW 0.9 1 90 8/30/2002 20 0.9 1 89 8/29/2002 13 BTR 0.8 1 93 8/28/2002 8 0.5 1 105 8/29/2002 21 SAN 0.8 1 89 8/30/2002 11 0.3 0 94 8/31/2002 25 DEN 0.1 0 88 8/10/2002 1 0.1 0 91 8/11/2002 3 PHX 0 0 0 none 0 0 0 0 none 0 ELP 0 0 0 none 0 0 0 0 none 0 CHI 20.8 18 88 8/30/2002 7 19.9 18 92 7/6/2002 7 WI 12.7 12 92 9/1/2002 6 8.3 8 100 7/7/2002 12 STL 10.3 9 87 8/7/2002 4 5.6 5 87 8/28/2002 4 KC 1.4 1 85 8/7/2002 1 1.2 1 90 8/9/2002 6

Source Region = MN Highest Average Contribution SecondHighest Average Contribution Receptor

Area % total ppb total ppb date # values % total ppb total ppb date # values OKC 1.3 1 87 7/13/2002 2 0.7 1 86 8/29/2002 1 MEM 1.1 1 91 8/26/2002 2 1.1 1 90 8/27/2002 10 BTR 0.7 1 94 8/27/2002 13 0.5 0 93 8/28/2002 8 DFW 0.7 1 89 8/28/2002 10 0.7 1 93 7/14/2002 26 HGB 0.4 0 92 8/28/2002 24 0.4 0 93 8/29/2002 57 BPA 0.4 0 92 8/28/2002 7 0.3 0 90 8/29/2002 18 DEN 0.2 0 90 7/11/2002 4 0.2 0 87 7/10/2002 3 SAN 0.2 0 89 8/30/2002 11 0.1 0 94 8/31/2002 25 PHX 0 0 0 none 0 0 0 0 none 0 ELP 0 0 0 none 0 0 0 0 none 0 WI 13.3 12 93 7/30/2002 8 7.4 8 106 7/15/2002 14 CHI 7.9 7 91 8/25/2002 10 7 7 99 7/15/2002 11 STL 7.3 6 87 7/23/2002 4 6.9 6 88 8/26/2002 9 KC 1.3 1 90 8/3/2002 6 1 1 89 7/25/2002 2



### 39Source Region = MO Highest Average Contribution SecondHighest Average Contribution Receptor

Area % total ppb total ppb date # values % total ppb total ppb date # values MEM 15 14 94 8/25/2002 3 13.9 13 91 8/26/2002 2 OKC 13.9 12 88 8/7/2002 6 5.9 5 86 8/29/2002 1 DFW 4 4 93 7/15/2002 23 3.8 4 93 9/12/2002 23 BPA 3 3 97 9/12/2002 24 2.6 3 99 9/13/2002 44 BTR 2.7 2 94 8/27/2002 13 1.9 2 96 9/12/2002 26 HGB 2.3 2 106 9/13/2002 189 2.1 2 103 9/12/2002 89 SAN 1.8 2 91 9/12/2002 9 1.8 2 94 9/13/2002 23 DEN 0.4 0 88 8/10/2002 1 0.3 0 91 8/11/2002 3 PHX 0 0 0 none 0 0 0 0 none 0 ELP 0 0 0 none 0 0 0 0 none 0 STL 63.1 66 104 8/1/2002 9 54.4 48 89 7/18/2002 5 KC 28.4 26 90 9/5/2002 7 26.2 24 91 7/6/2002 13 CHI 14 13 95 7/3/2002 3 13.6 12 90 8/1/2002 7 WI 11.5 11 93 8/1/2002 15 10.9 10 88 7/3/2002 2

Source Region = MSHighest Average Contribution SecondHighest Average Contribution Receptor

Area % total ppb total ppb date # values % total ppb total ppb date # values MEM 26.7 25 93 8/11/2002 2 20.5 19 93 8/22/2002 11 BTR 12 11 93 8/28/2002 8 11.7 11 94 8/27/2002 13 BPA 9.7 10 101 8/30/2002 29 8.4 8 100 8/31/2002 41 DFW 7.7 7 91 9/6/2002 38 7.3 7 94 9/5/2002 31 HGB 7.6 7 97 8/31/2002 135 6.8 7 100 8/30/2002 97 OKC 6.7 6 88 8/5/2002 5 6 5 91 9/5/2002 11 SAN 5.9 5 94 8/31/2002 25 5.1 5 90 9/6/2002 9 DEN 0.3 0 88 8/8/2002 2 0.3 0 87 8/7/2002 1 PHX 0 0 0 none 0 0 0 0 none 0 ELP 0 0 0 none 0 0 0 0 none 0 CHI 7.9 7 85 8/13/2002 1 1.7 2 90 8/12/2002 7 WI 6.5 6 92 9/20/2002 23 6.5 6 93 8/14/2002 10 KC 4.5 4 87 7/4/2002 3 2.8 2 87 9/9/2002 4 STL 1.9 2 89 9/3/2002 4 1.8 2 90 9/8/2002 7



### 40Source Region = Mexico Highest Average Contribution SecondHighest Average Contribution Receptor

Area % total ppb total ppb date # values % total ppb total ppb date # values DEN 1.7 2 94 9/8/2002 3 1.4 1 93 9/7/2002 2 DFW 1.1 1 91 7/26/2002 9 1 1 94 7/25/2002 11 OKC 0.7 1 87 7/23/2002 3 0.6 1 86 9/3/2002 1 BTR 0.4 0 87 8/26/2002 5 0.2 0 94 8/27/2002 13 SAN 0.3 0 89 8/7/2002 4 0.1 0 89 8/8/2002 7 BPA 0.3 0 89 7/13/2002 3 0.2 0 91 7/12/2002 7 MEM 0.3 0 87 8/20/2002 2 0.3 0 94 8/1/2002 3 HGB 0.2 0 92 8/28/2002 24 0.1 0 93 8/29/2002 57 PHX 0 0 0 none 0 0 0 0 none 0 ELP 0 0 0 none 0 0 0 0 none 0 KC 1 1 89 7/27/2002 3 0.9 1 89 7/26/2002 7 STL 0.6 1 97 7/30/2002 17 0.4 0 92 8/24/2002 6 WI 0.4 0 88 8/2/2002 3 0.3 0 103 7/22/2002 16 CHI 0.3 0 90 8/1/2002 7 0.3 0 96 7/22/2002 6

Source Region = NDHighest Average Contribution SecondHighest Average Contribution Receptor

Area % total ppb total ppb date # values % total ppb total ppb date # values OKC 0.7 1 87 7/23/2002 3 0.4 0 87 7/13/2002 2 MEM 0.5 0 90 8/27/2002 10 0.3 0 95 7/24/2002 5 DEN 0.4 0 90 7/11/2002 4 0.4 0 87 7/10/2002 3 DFW 0.3 0 89 8/28/2002 10 0.3 0 89 8/29/2002 13 HGB 0.2 0 93 8/29/2002 57 0.2 0 92 8/28/2002 24 BTR 0.2 0 93 8/28/2002 8 0.2 0 94 8/27/2002 13 BPA 0.2 0 90 8/29/2002 18 0.2 0 92 8/28/2002 7 SAN 0.1 0 89 8/30/2002 11 0.1 0 94 8/31/2002 25 PHX 0 0 0 none 0 0 0 0 none 0 ELP 0 0 0 none 0 0 0 0 none 0 WI 2.8 3 93 7/30/2002 8 1.1 1 95 8/25/2002 3 STL 1.8 2 88 8/26/2002 9 1.6 1 88 8/27/2002 9 CHI 1.2 1 91 8/25/2002 10 1 1 88 8/26/2002 4 KC 0.4 0 89 7/25/2002 2 0.2 0 90 9/5/2002 7



### 41Source Region = NEHighest Average Contribution SecondHighest Average Contribution Receptor

Area % total ppb total ppb date # values % total ppb total ppb date # values DEN 5.5 5 87 7/10/2002 3 5.2 5 90 7/11/2002 4 OKC 3.4 3 87 7/13/2002 2 1.7 1 87 7/23/2002 3 DFW 1.5 1 93 7/14/2002 26 1.4 1 93 7/15/2002 23 MEM 0.7 1 94 8/25/2002 3 0.7 1 91 8/26/2002 2 BTR 0.3 0 94 8/27/2002 13 0.2 0 96 9/12/2002 26 BPA 0.2 0 96 9/14/2002 56 0.2 0 99 9/13/2002 44 HGB 0.2 0 92 8/28/2002 24 0.1 0 93 8/29/2002 57 SAN 0.2 0 91 9/12/2002 9 0.2 0 94 9/13/2002 23 PHX 0 0 0 none 0 0 0 0 none 0 ELP 0 0 0 none 0 0 0 0 none 0 CHI 2.2 2 93 8/11/2002 6 1.6 2 96 7/29/2002 4 WI 1.9 2 95 8/11/2002 13 1.3 1 107 7/29/2002 27 KC 1.8 2 87 8/24/2002 1 1.3 1 90 8/23/2002 3 STL 1.7 2 97 7/30/2002 17 1.4 1 90 9/4/2002 2

Source Region = NM Highest Average Contribution SecondHighest Average Contribution Receptor

Area % total ppb total ppb date # values % total ppb total ppb date # values DEN 5.8 5 88 7/20/2002 5 5.8 5 88 7/19/2002 14 OKC 0.9 1 86 9/3/2002 1 0.7 1 86 9/4/2002 1 DFW 0.4 0 89 8/28/2002 10 0.4 0 88 8/27/2002 4 MEM 0.4 0 87 8/20/2002 2 0.2 0 92 8/21/2002 4 BTR 0.3 0 87 8/26/2002 5 0.2 0 94 8/27/2002 13 HGB 0.2 0 92 8/28/2002 24 0.1 0 93 8/29/2002 57 BPA 0.1 0 92 8/27/2002 4 0.1 0 92 8/28/2002 7 SAN 0.1 0 91 9/12/2002 9 0.1 0 89 8/30/2002 11 PHX 0 0 0 none 0 0 0 0 none 0 ELP 0 0 0 none 0 0 0 0 none 0 KC 0.5 0 87 8/24/2002 1 0.5 0 88 8/11/2002 1 STL 0.4 0 89 9/3/2002 4 0.4 0 90 9/4/2002 2 CHI 0.2 0 93 8/11/2002 6 0.2 0 85 8/24/2002 1 WI 0.2 0 90 9/3/2002 15 0.2 0 89 8/21/2002 1



### 42Source Region = OKHighest Average Contribution SecondHighest Average Contribution Receptor

Area % total ppb total ppb date # values % total ppb total ppb date # values OKC 64.2 55 86 7/25/2002 1 63.1 55 87 7/24/2002 6 DFW 18 17 93 7/14/2002 26 17.9 17 93 7/15/2002 23 MEM 2.9 3 91 7/11/2002 6 2.3 2 88 7/23/2002 5 SAN 2.7 2 91 9/12/2002 9 1.6 2 94 9/13/2002 23 DEN 2.3 2 88 8/10/2002 1 2.1 2 91 8/11/2002 3 BTR 1.5 1 87 8/26/2002 5 1 1 92 7/13/2002 9 HGB 0.5 0 92 8/28/2002 24 0.5 1 103 9/12/2002 89 BPA 0.5 0 92 8/27/2002 4 0.4 0 92 8/28/2002 7 PHX 0 0 0 none 0 0 0 0 none 0 ELP 0 0 0 none 0 0 0 0 none 0 KC 21.6 19 87 7/31/2002 2 19.6 18 90 8/23/2002 3 STL 7.3 7 97 7/19/2002 7 6.6 6 97 7/20/2002 11 CHI 4.5 4 96 7/22/2002 6 3.7 3 93 7/21/2002 20 WI 4.3 4 88 8/2/2002 3 4.3 4 103 7/22/2002 16

Source Region = SDHighest Average Contribution SecondHighest Average Contribution Receptor

Area % total ppb total ppb date # values % total ppb total ppb date # values DEN 2.9 3 87 7/10/2002 3 2.8 3 90 7/11/2002 4 OKC 0.9 1 87 7/13/2002 2 0.5 0 87 7/23/2002 3 MEM 0.5 0 91 8/26/2002 2 0.5 1 94 8/25/2002 3 DFW 0.4 0 93 7/14/2002 26 0.4 0 93 7/15/2002 23 BTR 0.2 0 94 8/27/2002 13 0.2 0 93 8/28/2002 8 HGB 0.2 0 92 8/28/2002 24 0.1 0 93 8/29/2002 57 BPA 0.1 0 92 8/28/2002 7 0.1 0 90 8/29/2002 18 SAN 0.1 0 89 8/30/2002 11 0.1 0 91 9/12/2002 9 PHX 0 0 0 none 0 0 0 0 none 0 ELP 0 0 0 none 0 0 0 0 none 0 WI 1 1 93 7/30/2002 8 0.9 1 100 7/31/2002 11 STL 0.9 1 97 7/30/2002 17 0.9 1 90 9/4/2002 2 CHI 0.7 1 87 8/16/2002 4 0.4 0 91 8/25/2002 10 KC 0.4 0 89 7/25/2002 2 0.2 0 89 8/5/2002 9



### 43Source Region = TNHighest Average Contribution SecondHighest Average Contribution Receptor

Area % total ppb total ppb date # values % total ppb total ppb date # values MEM 47.5 47 98 8/3/2002 27 46.9 47 101 8/2/2002 12 BPA 8.2 7 90 8/29/2002 18 4.7 5 101 8/30/2002 29 DFW 7.8 7 89 9/7/2002 9 5.5 5 96 8/9/2002 33 BTR 6.8 7 105 8/29/2002 21 6.3 6 96 9/12/2002 26 OKC 6.2 5 86 8/6/2002 2 4.9 4 87 9/7/2002 2 HGB 5.2 5 100 8/30/2002 97 3.2 3 106 9/13/2002 189 SAN 4.6 4 91 9/12/2002 9 3.9 3 90 9/6/2002 9 DEN 0.2 0 88 8/8/2002 2 0.2 0 87 8/7/2002 1 PHX 0 0 0 none 0 0 0 0 none 0 ELP 0 0 0 none 0 0 0 0 none 0 STL 10.6 10 90 9/8/2002 7 9.3 9 101 9/9/2002 29 WI 7.9 7 92 9/20/2002 23 5.3 5 90 9/3/2002 15 KC 6.9 6 87 9/1/2002 4 6.2 5 86 9/2/2002 2 CHI 5.6 5 85 8/13/2002 1 3.8 3 89 9/9/2002 10

Source Region = TX Highest Average Contribution SecondHighest Average Contribution Receptor

Area % total ppb total ppb date # values % total ppb total ppb date # values BPA 87.8 78 89 7/13/2002 3 87.2 79 91 7/12/2002 7 DFW 80.7 73 91 7/26/2002 9 80.3 76 94 7/25/2002 11 HGB 80.6 69 85 7/25/2002 1 76.7 67 87 7/24/2002 2 SAN 66.3 59 89 8/7/2002 4 61.8 55 89 8/8/2002 7 OKC 33.5 29 86 9/3/2002 1 29.2 26 91 7/10/2002 17 MEM 14.8 13 87 7/22/2002 2 12.1 11 94 8/1/2002 3 BTR 14.2 13 92 7/13/2002 9 13.4 12 87 8/26/2002 5 DEN 6.2 5 87 8/7/2002 1 6.2 5 88 8/8/2002 2 PHX 0 0 0 none 0 0 0 0 none 0 ELP 0 0 0 none 0 0 0 0 none 0 KC 18.6 16 87 7/18/2002 3 16.5 15 89 7/27/2002 3 STL 10.6 10 97 7/19/2002 7 10.2 9 93 8/19/2002 2 CHI 7 7 96 7/28/2002 10 5.4 5 96 7/29/2002 4 WI 5.1 5 96 7/28/2002 62 4.3 4 103 7/22/2002 16



### 44Source Region = WI Highest Average Contribution SecondHighest Average Contribution Receptor

Area % total ppb total ppb date # values % total ppb total ppb date # values MEM 1.8 2 95 7/24/2002 5 1.7 2 90 8/27/2002 10 BTR 0.9 1 94 8/27/2002 13 0.9 1 93 8/28/2002 8 DFW 0.9 1 89 8/28/2002 10 0.7 1 89 8/29/2002 13 OKC 0.8 1 86 8/29/2002 1 0.6 1 87 7/13/2002 2 BPA 0.6 1 92 8/28/2002 7 0.4 0 90 8/29/2002 18 HGB 0.5 0 92 8/28/2002 24 0.5 0 93 8/29/2002 57 SAN 0.2 0 89 8/30/2002 11 0.1 0 94 8/31/2002 25 DEN 0 0 89 7/18/2002 6 0 0 88 7/19/2002 14 PHX 0 0 0 none 0 0 0 0 none 0 ELP 0 0 0 none 0 0 0 0 none 0 WI 70.8 67 95 8/25/2002 3 70.6 63 89 8/26/2002 2 CHI 30.9 27 88 8/26/2002 4 30.2 27 91 8/25/2002 10 STL 9.4 8 87 7/23/2002 4 7.8 7 87 7/24/2002 10 KC 1.7 1 85 8/7/2002 1 0.7 1 89 7/25/2002 2

Source Region = WY Highest Average Contribution SecondHighest Average Contribution Receptor

Area % total ppb total ppb date # values % total ppb total ppb date # values DEN 8.6 7 87 7/26/2002 1 7 6 87 7/25/2002 4 MEM 0.7 1 91 8/26/2002 2 0.7 1 94 8/25/2002 3 BTR 0.4 0 94 8/27/2002 13 0.3 0 93 8/28/2002 8 DFW 0.4 0 89 8/28/2002 10 0.3 0 89 8/29/2002 13 HGB 0.3 0 92 8/28/2002 24 0.2 0 93 8/29/2002 57 OKC 0.3 0 86 8/6/2002 2 0.2 0 88 7/11/2002 11 BPA 0.2 0 92 8/28/2002 7 0.2 0 90 8/29/2002 18 SAN 0.2 0 89 8/30/2002 11 0.1 0 91 9/12/2002 9 PHX 0 0 0 none 0 0 0 0 none 0 ELP 0 0 0 none 0 0 0 0 none 0 CHI 1 1 93 8/11/2002 6 0.6 1 90 8/12/2002 7 STL 0.7 1 88 8/25/2002 5 0.5 1 92 8/24/2002 6 WI 0.6 1 95 8/11/2002 13 0.5 1 107 7/29/2002 27 KC 0.4 0 87 7/31/2002 2 0.3 0 87 8/24/2002 1



### 45Source Region = Western United States Highest Average Contribution SecondHighest Average Contribution Receptor

Area % total ppb total ppb date # values % total ppb total ppb date # values DEN 16.1 14 87 6/30/2002 5 15.2 14 90 7/2/2002 6 DFW 1.9 2 89 8/28/2002 10 1.7 1 89 8/29/2002 13 BTR 1.7 2 94 8/27/2002 13 1.5 1 93 8/28/2002 8 MEM 1.7 2 90 8/27/2002 10 1.5 1 91 8/26/2002 2 HGB 1.4 1 92 8/28/2002 24 1.1 1 93 8/29/2002 57 OKC 1.3 1 86 8/29/2002 1 1.1 1 86 8/6/2002 2 BPA 1 1 92 8/28/2002 7 0.8 1 90 8/29/2002 18 SAN 0.8 1 89 8/30/2002 11 0.5 0 91 9/12/2002 9 PHX 0 0 0 none 0 0 0 0 none 0 ELP 0 0 0 none 0 0 0 0 none 0 STL 3.7 3 88 8/26/2002 9 3.1 3 88 8/27/2002 9 WI 2.7 2 93 7/30/2002 8 1.9 2 100 7/31/2002 11 CHI 2 2 91 8/25/2002 10 1.7 1 88 8/26/2002 4 KC 1.5 1 89 7/25/2002 2 1.2 1 89 8/5/2002 9



### 46

### Table C-2
Each Receptor Area with Region contribution break-down

47Receptor Area = Beaumont/Port Arthur Highest Average Contribution Second Highest Average Contribution

Source Area % total ppb total ppb date # values % total ppb total ppb date # values TX 87.8 78 89 7/13/2002 3 87.2 79 91 7/12/2002 7 LA 38.9 34 88 7/9/2002 9 33.2 30 90 7/8/2002 14 East 16.5 15 90 8/29/2002 18 15.3 15 101 8/30/2002 29 BC 13.5 13 95 9/11/2002 6 13.2 12 90 7/7/2002 16 MS 9.7 10 101 8/30/2002 29 8.4 8 100 8/31/2002 41 Gulf 9.7 9 92 8/8/2002 8 9.3 8 88 8/9/2002 2 AL 8.2 8 100 8/31/2002 41 7.8 8 101 8/30/2002 29 TN 8.2 7 90 8/29/2002 18 4.7 5 101 8/30/2002 29 AR 7.2 6 90 8/29/2002 18 4.8 5 97 9/12/2002 24 KY 6.2 6 90 8/29/2002 18 3.3 3 97 9/12/2002 24 IN 3.5 3 90 8/29/2002 18 2.2 2 97 9/12/2002 24 MO 3 3 97 9/12/2002 24 2.6 3 99 9/13/2002 44 IL 2.9 3 97 9/12/2002 24 2.6 3 99 9/13/2002 44 Canada 2.3 2 90 8/29/2002 18 0.9 1 101 8/30/2002 29 MI 1.3 1 90 8/29/2002 18 0.5 0 92 8/28/2002 7 West 1 1 92 8/28/2002 7 0.8 1 90 8/29/2002 18 KS 0.7 1 99 9/13/2002 44 0.6 1 96 9/14/2002 56 WI 0.6 1 92 8/28/2002 7 0.4 0 90 8/29/2002 18 OK 0.5 0 92 8/27/2002 4 0.4 0 92 8/28/2002 7 IA 0.4 0 99 9/13/2002 44 0.4 0 92 8/28/2002 7 MN 0.4 0 92 8/28/2002 7 0.3 0 90 8/29/2002 18 Mexico 0.3 0 89 7/13/2002 3 0.2 0 91 7/12/2002 7 NE 0.2 0 96 9/14/2002 56 0.2 0 99 9/13/2002 44 WY 0.2 0 92 8/28/2002 7 0.2 0 90 8/29/2002 18 CO 0.2 0 92 8/28/2002 7 0.2 0 92 8/27/2002 4 ND 0.2 0 90 8/29/2002 18 0.2 0 92 8/28/2002 7 SD 0.1 0 92 8/28/2002 7 0.1 0 90 8/29/2002 18 NM 0.1 0 92 8/27/2002 4 0.1 0 92 8/28/2002 7 IC 0 0 90 7/7/2002 16 0 0 90 7/8/2002 14



### 48Receptor Area = Baton Rouge Highest Average Contribution Second Highest Average Contribution

Source Area % total ppb total ppb date # values % total ppb total ppb date # values LA 75.2 70 93 7/19/2002 12 74.4 73 98 7/18/2002 15 East 21.9 20 90 8/4/2002 9 18.5 19 101 8/30/2002 30 BC 19.8 18 92 7/17/2002 2 18.4 17 91 9/11/2002 8 AL 17.7 19 105 8/29/2002 21 13.1 13 101 8/30/2002 30 TX 14.2 13 92 7/13/2002 9 13.4 12 87 8/26/2002 5 MS 12 11 93 8/28/2002 8 11.7 11 94 8/27/2002 13 Gulf 10.4 9 91 8/7/2002 18 7.9 7 93 8/6/2002 8 TN 6.8 7 105 8/29/2002 21 6.3 6 96 9/12/2002 26 AR 5.3 5 94 8/27/2002 13 4.8 4 87 8/26/2002 5 KY 3.8 4 96 9/12/2002 26 3.2 3 105 8/29/2002 21 IL 3 3 96 9/12/2002 26 3 3 94 8/27/2002 13 MO 2.7 2 94 8/27/2002 13 1.9 2 96 9/12/2002 26 IN 2.6 2 96 9/12/2002 26 2 2 95 9/13/2002 29 West 1.7 2 94 8/27/2002 13 1.5 1 93 8/28/2002 8 OK 1.5 1 87 8/26/2002 5 1 1 92 7/13/2002 9 IA 1.1 1 94 8/27/2002 13 0.7 1 93 8/28/2002 8 Canada 1 1 90 8/4/2002 9 0.9 1 93 8/28/2002 8 WI 0.9 1 94 8/27/2002 13 0.9 1 93 8/28/2002 8 KS 0.8 1 96 9/12/2002 26 0.7 1 95 9/13/2002 29 MI 0.8 1 93 8/28/2002 8 0.5 1 105 8/29/2002 21 MN 0.7 1 94 8/27/2002 13 0.5 0 93 8/28/2002 8 WY 0.4 0 94 8/27/2002 13 0.3 0 93 8/28/2002 8 Mexico 0.4 0 87 8/26/2002 5 0.2 0 94 8/27/2002 13 NE 0.3 0 94 8/27/2002 13 0.2 0 96 9/12/2002 26 CO 0.3 0 94 8/27/2002 13 0.3 0 87 8/26/2002 5 NM 0.3 0 87 8/26/2002 5 0.2 0 94 8/27/2002 13 SD 0.2 0 94 8/27/2002 13 0.2 0 93 8/28/2002 8 ND 0.2 0 93 8/28/2002 8 0.2 0 94 8/27/2002 13 IC 0 0 88 7/8/2002 10 0 0 94 7/7/2002 31



### 49Receptor Area = Chicago Highest Average Contribution Second Highest Average Contribution

Source Area % total ppb total ppb date # values % total ppb total ppb date # values IL 66.2 72 109 7/1/2002 7 61.7 66 106 6/30/2002 18 WI 30.9 27 88 8/26/2002 4 30.2 27 91 8/25/2002 10 East 30.6 27 88 8/31/2002 6 29 26 88 8/30/2002 7 BC 28.3 25 87 7/14/2002 1 20.8 19 92 8/3/2002 7 MI 20.8 18 88 8/30/2002 7 19.9 18 92 7/6/2002 7 IN 20.6 19 92 9/7/2002 12 17 16 92 9/8/2002 25 MO 14 13 95 7/3/2002 3 13.6 12 90 8/1/2002 7 Canada 12.1 11 88 8/31/2002 6 11.3 10 88 8/30/2002 7 IA 10.2 11 105 7/18/2002 27 7.9 8 103 7/19/2002 16 MN 7.9 7 91 8/25/2002 10 7 7 99 7/15/2002 11 MS 7.9 7 85 8/13/2002 1 1.7 2 90 8/12/2002 7 TX 7 7 96 7/28/2002 10 5.4 5 96 7/29/2002 4 AR 6.2 5 87 8/16/2002 4 5.5 5 85 8/13/2002 1 TN 5.6 5 85 8/13/2002 1 3.8 3 89 9/9/2002 10 KY 4.6 4 92 9/8/2002 25 3.9 4 105 8/4/2002 34 OK 4.5 4 96 7/22/2002 6 3.7 3 93 7/21/2002 20 KS 4.2 4 93 8/11/2002 6 3.2 3 96 7/29/2002 4 AL 2.7 2 89 9/9/2002 10 2.6 2 85 8/13/2002 1 NE 2.2 2 93 8/11/2002 6 1.6 2 96 7/29/2002 4 West 2 2 91 8/25/2002 10 1.7 1 88 8/26/2002 4 LA 1.7 1 87 8/16/2002 4 1.6 1 85 8/13/2002 1 ND 1.2 1 91 8/25/2002 10 1 1 88 8/26/2002 4 WY 1 1 93 8/11/2002 6 0.6 1 90 8/12/2002 7 SD 0.7 1 87 8/16/2002 4 0.4 0 91 8/25/2002 10 Gulf 0.5 0 87 8/16/2002 4 0.3 0 85 8/13/2002 1 CO 0.4 0 93 8/11/2002 6 0.3 0 85 8/24/2002 1 Mexico 0.3 0 90 8/1/2002 7 0.3 0 96 7/22/2002 6 NM 0.2 0 93 8/11/2002 6 0.2 0 85 8/24/2002 1 IC 0.1 0 106 6/30/2002 18 0 0 109 7/1/2002 7



### 50Receptor Area = DenverHighest Average Contribution Second Highest Average Contribution

Source Area % total ppb total ppb date # values % total ppb total ppb date # values CO 66.6 62 93 9/7/2002 2 63.6 60 94 9/8/2002 3 BC 48.5 42 87 6/30/2002 5 41.2 37 91 7/1/2002 10 West 16.1 14 87 6/30/2002 5 15.2 14 90 7/2/2002 6 WY 8.6 7 87 7/26/2002 1 7 6 87 7/25/2002 4 TX 6.2 5 87 8/7/2002 1 6.2 5 88 8/8/2002 2 NM 5.8 5 88 7/20/2002 5 5.8 5 88 7/19/2002 14 NE 5.5 5 87 7/10/2002 3 5.2 5 90 7/11/2002 4 SD 2.9 3 87 7/10/2002 3 2.8 3 90 7/11/2002 4 KS 2.8 2 88 8/10/2002 1 2.5 2 91 8/11/2002 3 OK 2.3 2 88 8/10/2002 1 2.1 2 91 8/11/2002 3 Mexico 1.7 2 94 9/8/2002 3 1.4 1 93 9/7/2002 2 East 1.4 1 88 8/8/2002 2 1.4 1 87 8/7/2002 1 LA 0.5 0 88 8/8/2002 2 0.5 0 87 8/7/2002 1 AR 0.5 0 88 8/10/2002 1 0.4 0 91 8/11/2002 3 ND 0.4 0 90 7/11/2002 4 0.4 0 87 7/10/2002 3 MO 0.4 0 88 8/10/2002 1 0.3 0 91 8/11/2002 3 AL 0.4 0 88 8/8/2002 2 0.4 0 87 8/7/2002 1 Canada 0.3 0 89 7/18/2002 6 0.3 0 88 8/10/2002 1 MS 0.3 0 88 8/8/2002 2 0.3 0 87 8/7/2002 1 IC 0.3 0 87 6/30/2002 5 0.2 0 91 7/1/2002 10 MN 0.2 0 90 7/11/2002 4 0.2 0 87 7/10/2002 3 TN 0.2 0 88 8/8/2002 2 0.2 0 87 8/7/2002 1 IN 0.2 0 88 8/10/2002 1 0.1 0 91 8/11/2002 3 IL 0.2 0 88 8/10/2002 1 0.2 0 91 8/11/2002 3 KY 0.1 0 91 8/11/2002 3 0.1 0 88 8/10/2002 1 IA 0.1 0 89 7/18/2002 6 0.1 0 88 7/19/2002 14 MI 0.1 0 88 8/10/2002 1 0.1 0 91 8/11/2002 3 Gulf 0.1 0 88 8/8/2002 2 0.1 0 87 8/7/2002 1 WI 0 0 89 7/18/2002 6 0 0 88 7/19/2002 14



### 51Receptor Area = Dallas/Fort Worth Highest Average Contribution Second Highest Average Contribution

Source Area % total ppb total ppb date # values % total ppb total ppb date # values TX 80.7 73 91 7/26/2002 9 80.3 76 94 7/25/2002 11 BC 19.5 17 88 9/10/2002 4 18 16 90 9/11/2002 13 OK 18 17 93 7/14/2002 26 17.9 17 93 7/15/2002 23 East 17.5 16 94 8/31/2002 56 14.9 14 91 9/1/2002 23 LA 14.4 13 94 9/5/2002 31 12.5 12 96 7/7/2002 45 AR 13.5 14 100 8/7/2002 56 13.4 13 95 8/8/2002 31 TN 7.8 7 89 9/7/2002 9 5.5 5 96 8/9/2002 33 MS 7.7 7 91 9/6/2002 38 7.3 7 94 9/5/2002 31 AL 6.5 6 91 9/1/2002 23 6.2 6 94 9/5/2002 31 KS 6 6 93 7/14/2002 26 5.9 5 93 7/15/2002 23 MO 4 4 93 7/15/2002 23 3.8 4 93 9/12/2002 23 IN 3.5 3 90 8/30/2002 20 2.2 2 89 8/29/2002 13 KY 3.5 3 89 9/7/2002 9 3.2 3 96 8/9/2002 33 IL 3.4 3 90 8/30/2002 20 3 3 89 8/29/2002 13 Canada 2.9 3 90 8/30/2002 20 1.5 1 96 8/9/2002 33 West 1.9 2 89 8/28/2002 10 1.7 1 89 8/29/2002 13 NE 1.5 1 93 7/14/2002 26 1.4 1 93 7/15/2002 23 IA 1.2 1 93 7/14/2002 26 1.2 1 93 7/15/2002 23 Mexico 1.1 1 91 7/26/2002 9 1 1 94 7/25/2002 11 Gulf 1.1 1 88 7/11/2002 16 0.9 1 90 9/3/2002 16 MI 0.9 1 90 8/30/2002 20 0.9 1 89 8/29/2002 13 WI 0.9 1 89 8/28/2002 10 0.7 1 89 8/29/2002 13 MN 0.7 1 89 8/28/2002 10 0.7 1 93 7/14/2002 26 SD 0.4 0 93 7/14/2002 26 0.4 0 93 7/15/2002 23 WY 0.4 0 89 8/28/2002 10 0.3 0 89 8/29/2002 13 NM 0.4 0 89 8/28/2002 10 0.4 0 88 8/27/2002 4 CO 0.4 0 88 9/10/2002 4 0.4 0 89 8/28/2002 10 ND 0.3 0 89 8/28/2002 10 0.3 0 89 8/29/2002 13 IC 0 0 96 7/7/2002 45 0 0 88 7/11/2002 16



### 52Receptor Area = El Paso Highest Average Contribution Second Highest Average Contribution Source Area % total ppb total ppb date # values % total ppb total ppb date # values WY 0 0 0 none 0 0 0 0 none 0 WI 0 0 0 none 0 0 0 0 none 0 West 0 0 0 none 0 0 0 0 none 0 TX 0 0 0 none 0 0 0 0 none 0 TN 0 0 0 none 0 0 0 0 none 0 SD 0 0 0 none 0 0 0 0 none 0 OK 0 0 0 none 0 0 0 0 none 0 NM 0 0 0 none 0 0 0 0 none 0 NE 0 0 0 none 0 0 0 0 none 0 ND 0 0 0 none 0 0 0 0 none 0 MS 0 0 0 none 0 0 0 0 none 0 MO 0 0 0 none 0 0 0 0 none 0 MN 0 0 0 none 0 0 0 0 none 0 MI 0 0 0 none 0 0 0 0 none 0 Mexico 0 0 0 none 0 0 0 0 none 0 LA 0 0 0 none 0 0 0 0 none 0 KY 0 0 0 none 0 0 0 0 none 0 KS 0 0 0 none 0 0 0 0 none 0 IN 0 0 0 none 0 0 0 0 none 0 IL 0 0 0 none 0 0 0 0 none 0 IC 0 0 0 none 0 0 0 0 none 0 IA 0 0 0 none 0 0 0 0 none 0 Gulf 0 0 0 none 0 0 0 0 none 0 East 0 0 0 none 0 0 0 0 none 0 CO 0 0 0 none 0 0 0 0 none 0 Canada 0 0 0 none 0 0 0 0 none 0 BC 0 0 0 none 0 0 0 0 none 0 AR 0 0 0 none 0 0 0 0 none 0 AL 0 0 0 none 0 0 0 0 none 0



### 53Receptor Area = Houston/Galveston/Brazoria Highest Average Contribution Second Highest Average Contribution

Source Area % total ppb total ppb date # values % total ppb total ppb date # values TX 80.6 69 85 7/25/2002 1 76.7 67 87 7/24/2002 2 LA 18.9 18 95 8/8/2002 36 17.6 17 94 8/5/2002 24 BC 18.9 16 86 7/23/2002 2 17.7 15 87 7/24/2002 2 East 16.2 14 86 9/1/2002 2 14.8 15 100 8/30/2002 97 Gulf 8.2 7 87 8/9/2002 1 7.5 7 92 9/15/2002 16 MS 7.6 7 97 8/31/2002 135 6.8 7 100 8/30/2002 97 AL 7.2 7 97 8/31/2002 135 7.2 7 92 9/15/2002 16 AR 7 6 93 8/29/2002 57 4.9 5 103 9/12/2002 89 TN 5.2 5 100 8/30/2002 97 3.2 3 106 9/13/2002 189 KY 3.5 4 100 8/30/2002 97 3.2 3 93 8/29/2002 57 IN 2.6 2 93 8/29/2002 57 2 2 100 8/30/2002 97 MO 2.3 2 106 9/13/2002 189 2.1 2 103 9/12/2002 89 IL 2.3 2 93 8/29/2002 57 2 2 106 9/13/2002 189 Canada 1.5 1 93 8/29/2002 57 1.4 1 100 8/30/2002 97 West 1.4 1 92 8/28/2002 24 1.1 1 93 8/29/2002 57 MI 1 1 93 8/29/2002 57 0.6 1 100 8/30/2002 97 KS 0.6 1 106 9/13/2002 189 0.6 1 103 9/14/2002 122 WI 0.5 0 92 8/28/2002 24 0.5 0 93 8/29/2002 57 OK 0.5 0 92 8/28/2002 24 0.5 1 103 9/12/2002 89 IA 0.5 0 92 8/28/2002 24 0.3 0 103 9/14/2002 122 MN 0.4 0 92 8/28/2002 24 0.4 0 93 8/29/2002 57 WY 0.3 0 92 8/28/2002 24 0.2 0 93 8/29/2002 57 CO 0.3 0 92 8/28/2002 24 0.2 0 93 8/29/2002 57 ND 0.2 0 93 8/29/2002 57 0.2 0 92 8/28/2002 24 SD 0.2 0 92 8/28/2002 24 0.1 0 93 8/29/2002 57 NM 0.2 0 92 8/28/2002 24 0.1 0 93 8/29/2002 57 NE 0.2 0 92 8/28/2002 24 0.1 0 93 8/29/2002 57 Mexico 0.2 0 92 8/28/2002 24 0.1 0 93 8/29/2002 57 IC 0 0 88 7/7/2002 19 0 0 90 7/8/2002 34



### 54Receptor Area = Kansas City Highest Average Contribution Second Highest Average Contribution

Source Area % total ppb total ppb date # values % total ppb total ppb date # values KS 44.3 38 87 8/24/2002 1 42.9 39 90 8/3/2002 6 MO 28.4 26 90 9/5/2002 7 26.2 24 91 7/6/2002 13 OK 21.6 19 87 7/31/2002 2 19.6 18 90 8/23/2002 3 BC 19.7 17 87 9/10/2002 1 19.6 17 87 9/9/2002 4 TX 18.6 16 87 7/18/2002 3 16.5 15 89 7/27/2002 3 East 17.2 15 88 8/31/2002 4 17 15 87 9/9/2002 4 IL 13.1 11 85 8/7/2002 1 11.1 10 91 7/7/2002 20 AR 10.9 9 87 9/1/2002 4 10.4 9 87 9/9/2002 4 TN 6.9 6 87 9/1/2002 4 6.2 5 86 9/2/2002 2 IN 6.7 6 91 7/7/2002 20 6.2 5 88 8/31/2002 4 AL 4.9 4 87 9/9/2002 4 4.3 4 87 9/10/2002 1 MS 4.5 4 87 7/4/2002 3 2.8 2 87 9/9/2002 4 KY 4.3 4 91 7/6/2002 13 4.1 4 88 8/31/2002 4 LA 3.7 3 87 7/4/2002 3 2.9 3 87 7/5/2002 8 Canada 2.6 2 90 8/9/2002 6 2.5 2 88 8/31/2002 4 IA 2.4 2 90 8/3/2002 6 2.1 2 85 8/7/2002 1 NE 1.8 2 87 8/24/2002 1 1.3 1 90 8/23/2002 3 WI 1.7 1 85 8/7/2002 1 0.7 1 89 7/25/2002 2 West 1.5 1 89 7/25/2002 2 1.2 1 89 8/5/2002 9 MI 1.4 1 85 8/7/2002 1 1.2 1 90 8/9/2002 6 MN 1.3 1 90 8/3/2002 6 1 1 89 7/25/2002 2 Mexico 1 1 89 7/27/2002 3 0.9 1 89 7/26/2002 7 Gulf 0.6 1 87 7/4/2002 3 0.6 0 87 7/18/2002 3 NM 0.5 0 87 8/24/2002 1 0.5 0 88 8/11/2002 1 CO 0.5 0 87 8/24/2002 1 0.4 0 88 8/11/2002 1 SD 0.4 0 89 7/25/2002 2 0.2 0 89 8/5/2002 9 ND 0.4 0 89 7/25/2002 2 0.2 0 90 9/5/2002 7 WY 0.4 0 87 7/31/2002 2 0.3 0 87 8/24/2002 1 IC 0 0 87 7/5/2002 8 0 0 87 7/4/2002 3



### 55Receptor Area = Memphis Highest Average Contribution Second Highest Average Contribution

Source Area % total ppb total ppb date # values % total ppb total ppb date # values TN 47.5 47 98 8/3/2002 27 46.9 47 101 8/2/2002 12 AR 43 38 90 7/17/2002 4 33.4 30 91 7/10/2002 5 East 35.6 34 95 8/29/2002 18 31.1 29 93 8/30/2002 22 MS 26.7 25 93 8/11/2002 2 20.5 19 93 8/22/2002 11 BC 19.3 17 88 9/13/2002 2 19 17 88 9/14/2002 2 AL 15.3 14 91 8/23/2002 3 15.2 14 93 8/22/2002 11 MO 15 14 94 8/25/2002 3 13.9 13 91 8/26/2002 2 TX 14.8 13 87 7/22/2002 2 12.1 11 94 8/1/2002 3 LA 14.7 14 93 7/27/2002 2 9.6 9 94 7/31/2002 4 KY 13.4 13 94 7/5/2002 23 13.1 12 90 8/27/2002 10 IL 13.2 12 90 8/7/2002 3 11.6 11 92 9/11/2002 11 IN 11 10 90 8/27/2002 10 10.2 10 99 7/6/2002 29 IA 5 5 94 8/25/2002 3 4.9 4 91 8/26/2002 2 MI 4.4 4 90 8/27/2002 10 1.9 2 89 8/28/2002 14 Canada 4.2 4 95 8/29/2002 18 3.7 3 89 8/28/2002 14 OK 2.9 3 91 7/11/2002 6 2.3 2 88 7/23/2002 5 KS 2.6 2 91 7/11/2002 6 1.4 1 94 8/25/2002 3 WI 1.8 2 95 7/24/2002 5 1.7 2 90 8/27/2002 10 West 1.7 2 90 8/27/2002 10 1.5 1 91 8/26/2002 2 Gulf 1.6 1 93 7/27/2002 2 1.1 1 91 8/23/2002 3 MN 1.1 1 91 8/26/2002 2 1.1 1 90 8/27/2002 10 NE 0.7 1 94 8/25/2002 3 0.7 1 91 8/26/2002 2 WY 0.7 1 91 8/26/2002 2 0.7 1 94 8/25/2002 3 SD 0.5 0 91 8/26/2002 2 0.5 1 94 8/25/2002 3 CO 0.5 0 91 8/26/2002 2 0.5 0 94 8/25/2002 3 ND 0.5 0 90 8/27/2002 10 0.3 0 95 7/24/2002 5 NM 0.4 0 87 8/20/2002 2 0.2 0 92 8/21/2002 4 Mexico 0.3 0 87 8/20/2002 2 0.3 0 94 8/1/2002 3 IC 0 0 95 7/2/2002 25 0 0 97 7/3/2002 28



### 56Receptor Area = Oklahoma City Highest Average Contribution Second Highest Average Contribution % total ppb total ppb date # values % total ppb total ppb date # values Source Area OK 64.2 55 86 7/25/2002 1 63.1 55 87 7/24/2002 6 TX 33.5 29 86 9/3/2002 1 29.2 26 91 7/10/2002 17 BC 22.1 19 86 8/6/2002 2 18.9 17 88 8/5/2002 5 East 14.3 13 88 8/5/2002 5 14.3 12 86 9/1/2002 1 AR 14.3 13 87 9/7/2002 2 12.6 11 87 8/31/2002 2 MO 13.9 12 88 8/7/2002 6 5.9 5 86 8/29/2002 1 KS 11.6 10 87 7/23/2002 3 9.8 8 87 7/13/2002 2 LA 8.2 7 91 9/5/2002 11 5.3 5 86 9/3/2002 1 MS 6.7 6 88 8/5/2002 5 6 5 91 9/5/2002 11 TN 6.2 5 86 8/6/2002 2 4.9 4 87 9/7/2002 2 AL 5.8 5 86 9/1/2002 1 5.7 5 88 8/5/2002 5 IL 5 4 88 8/7/2002 6 4.1 3 86 8/29/2002 1 IN 3.7 3 91 8/9/2002 3 3.4 3 92 8/8/2002 10 KY 3.4 3 91 8/9/2002 3 3.4 3 87 8/31/2002 2 NE 3.4 3 87 7/13/2002 2 1.7 1 87 7/23/2002 3 Canada 2.1 2 87 8/31/2002 2 1.7 1 86 8/29/2002 1 MI 1.5 1 91 8/9/2002 3 1.5 1 92 8/8/2002 10 IA 1.4 1 87 7/23/2002 3 1.2 1 87 7/13/2002 2 MN 1.3 1 87 7/13/2002 2 0.7 1 86 8/29/2002 1 West 1.3 1 86 8/29/2002 1 1.1 1 86 8/6/2002 2 Gulf 0.9 1 87 8/11/2002 2 0.7 1 89 8/10/2002 3 SD 0.9 1 87 7/13/2002 2 0.5 0 87 7/23/2002 3 NM 0.9 1 86 9/3/2002 1 0.7 1 86 9/4/2002 1 WI 0.8 1 86 8/29/2002 1 0.6 1 87 7/13/2002 2 ND 0.7 1 87 7/23/2002 3 0.4 0 87 7/13/2002 2 Mexico 0.7 1 87 7/23/2002 3 0.6 1 86 9/3/2002 1 CO 0.3 0 86 9/3/2002 1 0.3 0 86 9/4/2002 1 WY 0.3 0 86 8/6/2002 2 0.2 0 88 7/11/2002 11 IC 0 0 91 7/10/2002 17 0 0 88 7/11/2002 11



### 57Receptor Area = PhoenixHighest Average Contribution Second Highest Average Contribution Source Area % total ppb total ppb date # values % total ppb total ppb date # values WY 0 0 0 none 0 0 0 0 none 0 WI 0 0 0 none 0 0 0 0 none 0 West 0 0 0 none 0 0 0 0 none 0 TX 0 0 0 none 0 0 0 0 none 0 TN 0 0 0 none 0 0 0 0 none 0 SD 0 0 0 none 0 0 0 0 none 0 OK 0 0 0 none 0 0 0 0 none 0 NM 0 0 0 none 0 0 0 0 none 0 NE 0 0 0 none 0 0 0 0 none 0 ND 0 0 0 none 0 0 0 0 none 0 MS 0 0 0 none 0 0 0 0 none 0 MO 0 0 0 none 0 0 0 0 none 0 MN 0 0 0 none 0 0 0 0 none 0 MI 0 0 0 none 0 0 0 0 none 0 Mexico 0 0 0 none 0 0 0 0 none 0 LA 0 0 0 none 0 0 0 0 none 0 KY 0 0 0 none 0 0 0 0 none 0 KS 0 0 0 none 0 0 0 0 none 0 IN 0 0 0 none 0 0 0 0 none 0 IL 0 0 0 none 0 0 0 0 none 0 IC 0 0 0 none 0 0 0 0 none 0 IA 0 0 0 none 0 0 0 0 none 0 Gulf 0 0 0 none 0 0 0 0 none 0 East 0 0 0 none 0 0 0 0 none 0 CO 0 0 0 none 0 0 0 0 none 0 Canada 0 0 0 none 0 0 0 0 none 0 BC 0 0 0 none 0 0 0 0 none 0 AR 0 0 0 none 0 0 0 0 none 0 AL 0 0 0 none 0 0 0 0 none 0



### 58Receptor Area = San Antonio Highest Average Contribution Second Highest Average Contribution

Source Area % total ppb total ppb date # values % total ppb total ppb date # values TX 66.3 59 89 8/7/2002 4 61.8 55 89 8/8/2002 7 LA 16 14 89 8/9/2002 1 14.1 13 94 8/31/2002 25 BC 14.2 13 91 9/12/2002 9 13.7 12 90 9/6/2002 9 East 14 13 94 8/31/2002 25 11.4 10 89 8/30/2002 11 AR 6.6 6 91 9/12/2002 9 4.7 4 89 8/30/2002 11 AL 6.5 6 94 8/31/2002 25 4.7 4 90 9/6/2002 9 MS 5.9 5 94 8/31/2002 25 5.1 5 90 9/6/2002 9 TN 4.6 4 91 9/12/2002 9 3.9 3 90 9/6/2002 9 Gulf 3.7 3 89 8/9/2002 1 3 3 94 8/31/2002 25 KY 3.3 3 91 9/12/2002 9 3.1 3 89 8/30/2002 11 OK 2.7 2 91 9/12/2002 9 1.6 2 94 9/13/2002 23 IN 2.2 2 89 8/30/2002 11 1.6 1 93 9/14/2002 10 IL 2 2 89 8/30/2002 11 1.4 1 93 9/14/2002 10 MO 1.8 2 91 9/12/2002 9 1.8 2 94 9/13/2002 23 Canada 1.8 2 89 8/30/2002 11 0.8 1 94 8/31/2002 25 KS 0.9 1 91 9/12/2002 9 0.7 1 94 9/13/2002 23 West 0.8 1 89 8/30/2002 11 0.5 0 91 9/12/2002 9 MI 0.8 1 89 8/30/2002 11 0.3 0 94 8/31/2002 25 Mexico 0.3 0 89 8/7/2002 4 0.1 0 89 8/8/2002 7 NE 0.2 0 91 9/12/2002 9 0.2 0 94 9/13/2002 23 CO 0.2 0 91 9/12/2002 9 0.2 0 94 9/13/2002 23 WY 0.2 0 89 8/30/2002 11 0.1 0 91 9/12/2002 9 WI 0.2 0 89 8/30/2002 11 0.1 0 94 8/31/2002 25 MN 0.2 0 89 8/30/2002 11 0.1 0 94 8/31/2002 25 IA 0.2 0 87 7/8/2002 4 0.1 0 87 7/9/2002 3 NM 0.1 0 91 9/12/2002 9 0.1 0 89 8/30/2002 11 SD 0.1 0 89 8/30/2002 11 0.1 0 91 9/12/2002 9 ND 0.1 0 89 8/30/2002 11 0.1 0 94 8/31/2002 25 IC 0 0 87 7/8/2002 4 0 0 87 7/9/2002 3



### 59Receptor Area = Saint Louis Highest Average Contribution Second Highest Average Contribution

Source Area % total ppb total ppb date # values % total ppb total ppb date # values MO 63.1 66 104 8/1/2002 9 54.4 48 89 7/18/2002 5 IL 44.5 41 93 8/21/2002 15 42.5 38 88 9/16/2002 1 East 30 27 88 8/30/2002 5 25.1 22 86 8/29/2002 2 BC 20.1 18 92 9/6/2002 14 20.1 18 88 7/7/2002 7 AR 15.6 14 93 8/19/2002 2 10.2 9 89 7/18/2002 5 IN 14.8 14 92 8/9/2002 4 14.4 13 92 9/6/2002 14 KY 12.2 12 95 9/1/2002 8 11.4 11 97 8/4/2002 25 IA 11.8 10 88 8/25/2002 5 10.7 10 92 8/24/2002 6 Canada 11.6 10 86 8/29/2002 2 9.7 8 87 8/28/2002 4 TX 10.6 10 97 7/19/2002 7 10.2 9 93 8/19/2002 2 TN 10.6 10 90 9/8/2002 7 9.3 9 101 9/9/2002 29 MI 10.3 9 87 8/7/2002 4 5.6 5 87 8/28/2002 4 WI 9.4 8 87 7/23/2002 4 7.8 7 87 7/24/2002 10 OK 7.3 7 97 7/19/2002 7 6.6 6 97 7/20/2002 11 MN 7.3 6 87 7/23/2002 4 6.9 6 88 8/26/2002 9 AL 6.4 6 90 9/8/2002 7 3.5 4 101 9/9/2002 29 KS 5.3 5 97 7/30/2002 17 4.2 4 96 7/10/2002 40 West 3.7 3 88 8/26/2002 9 3.1 3 88 8/27/2002 9 LA 2.8 3 93 8/19/2002 2 1.3 1 92 8/20/2002 9 MS 1.9 2 89 9/3/2002 4 1.8 2 90 9/8/2002 7 ND 1.8 2 88 8/26/2002 9 1.6 1 88 8/27/2002 9 NE 1.7 2 97 7/30/2002 17 1.4 1 90 9/4/2002 2 SD 0.9 1 97 7/30/2002 17 0.9 1 90 9/4/2002 2 Gulf 0.7 1 93 8/19/2002 2 0.4 0 89 7/18/2002 5 WY 0.7 1 88 8/25/2002 5 0.5 1 92 8/24/2002 6 Mexico 0.6 1 97 7/30/2002 17 0.4 0 92 8/24/2002 6 CO 0.6 0 88 8/25/2002 5 0.5 0 92 8/24/2002 6 NM 0.4 0 89 9/3/2002 4 0.4 0 90 9/4/2002 2 IC 0 0 101 7/4/2002 49 0 0 104 7/3/2002 32



### 60

### Receptor Area = Milwaukee Highest Average Contribution Second Highest Average Contribution Source Area % total ppb total ppb date # values % total ppb total ppb date # values WI 70.8 67 95 8/25/2002 3 70.6 63 89 8/26/2002 2 IL 39.7 36 90 7/9/2002 34 36.8 32 87 7/4/2002 2 IN 24.5 21 85 9/18/2002 1 24.3 22 89 9/19/2002 26 East 21.7 20 92 9/1/2002 6 17.5 16 91 9/2/2002 10 BC 18.8 17 92 7/14/2002 6 14.1 12 85 9/18/2002 1 MN 13.3 12 93 7/30/2002 8 7.4 8 106 7/15/2002 14 MI 12.7 12 92 9/1/2002 6 8.3 8 100 7/7/2002 12 MO 11.5 11 93 8/1/2002 15 10.9 10 88 7/3/2002 2 IA 8.3 8 95 8/11/2002 13 7.6 6 85 7/19/2002 1 TN 7.9 7 92 9/20/2002 23 5.3 5 90 9/3/2002 15 AL 7.4 7 92 9/20/2002 23 2.8 3 93 8/14/2002 10 MS 6.5 6 92 9/20/2002 23 6.5 6 93 8/14/2002 10 KY 6.3 6 89 9/19/2002 26 5 4 85 9/18/2002 1 LA 5.6 5 92 9/20/2002 23 2.4 2 95 8/13/2002 41 AR 5.5 5 95 8/13/2002 41 5.4 5 90 9/3/2002 15 Canada 5.3 5 89 8/10/2002 1 5 5 93 7/30/2002 8 TX 5.1 5 96 7/28/2002 62 4.3 4 103 7/22/2002 16 OK 4.3 4 88 8/2/2002 3 4.3 4 103 7/22/2002 16 KS 3.8 4 98 7/2/2002 13 3.7 4 104 7/21/2002 17 ND 2.8 3 93 7/30/2002 8 1.1 1 95 8/25/2002 3 West 2.7 2 93 7/30/2002 8 1.9 2 100 7/31/2002 11 NE 1.9 2 95 8/11/2002 13 1.3 1 107 7/29/2002 27 Gulf 1.3 1 92 9/20/2002 23 0.4 0 98 7/2/2002 13 SD 1 1 93 7/30/2002 8 0.9 1 100 7/31/2002 11 WY 0.6 1 95 8/11/2002 13 0.5 1 107 7/29/2002 27 CO 0.4 0 89 8/21/2002 1 0.3 0 89 8/22/2002 9 Mexico 0.4 0 88 8/2/2002 3 0.3 0 103 7/22/2002 16 NM 0.2 0 90 9/3/2002 15 0.2 0 89 8/21/2002 1 IC 0.1 0 107 7/1/2002 67 0.1 0 98 7/2/2002 13

61

### Table C-3
Receptor Area total ppb impact from each source Region

62Receptor Area = BPA Total ppb = 36575.58; Anthro ppb = 33348.62; # Values = 384

Source Area ppb % Anthro Cum % Anthro TX 13070.59 39.19 39.19 LA 7862.66 23.58 62.77 East 2991.15 8.97 71.74 MS 2160.52 6.48 78.22 AL 1589.91 4.77 82.99 Gulf 1234.22 3.7 86.69 TN 996.71 2.99 89.68 AR 805.47 2.42 92.09 KY 615.55 1.85 93.94 IL 416.54 1.25 95.19 IN 383.99 1.15 96.34 MO 366.34 1.1 97.44 Canada 185.65 0.56 97.99 West 127.87 0.38 98.38 KS 107.78 0.32 98.7 IA 73 0.22 98.92 MI 68.03 0.2 99.12 OK 58.38 0.18 99.3 WI 57.59 0.17 99.47 NE 37.5 0.11 99.58 CO 32.68 0.1 99.68 WY 30.84 0.09 99.77 ND 20.48 0.06 99.83 SD 18.94 0.06 99.89 NM 18.44 0.06 99.95 Mexico 17.8 0.05 100



### 63Receptor Area = BTR Total ppb = 44132.92; Anthro ppb = 39470.06; # Values = 465

Source Area ppb % Anthro Cum % Anthro LA 23617.61 59.84 59.84 East 4527.91 11.47 71.31 MS 3420.97 8.67 79.98 AL 2723.1 6.9 86.87 Gulf 1191.81 3.02 89.89 TN 890.24 2.26 92.15 TX 867.82 2.2 94.35 KY 442.25 1.12 95.47 AR 277.39 0.7 96.17 IL 268.26 0.68 96.85 IN 246.56 0.62 97.48 MO 186.87 0.47 97.95 West 142.59 0.36 98.31 Canada 139.81 0.35 98.67 KS 82.51 0.21 98.87 OK 79.41 0.2 99.08 IA 64.79 0.16 99.24 WI 59.16 0.15 99.39 MI 55.16 0.14 99.53 WY 36.3 0.09 99.62 CO 35.51 0.09 99.71 NE 34.4 0.09 99.8 SD 20.68 0.05 99.85 NM 20.23 0.05 99.9 ND 19.93 0.05 99.95 Mexico 18.77 0.05 100



### 64Receptor Area = CHI Total ppb = 44628.95; Anthro ppb = 38885.13; # Values = 459

Source Area ppb % Anthro Cum % Anthro IL 21749.81 55.93 55.93 IN 2914.03 7.49 63.43 WI 2821.7 7.26 70.68 MO 2697.14 6.94 77.62 MI 1632.16 4.2 81.82 East 1324.4 3.41 85.22 IA 1224.32 3.15 88.37 Canada 759.98 1.95 90.33 KY 624.65 1.61 91.93 KS 511.25 1.31 93.25 AR 472.96 1.22 94.46 TX 466.66 1.2 95.66 OK 448.15 1.15 96.82 TN 250.35 0.64 97.46 West 248.2 0.64 98.1 NE 138.83 0.36 98.46 AL 104.53 0.27 98.72 LA 97.76 0.25 98.98 MS 80.87 0.21 99.18 ND 67.41 0.17 99.36 SD 66.18 0.17 99.53 WY 63.74 0.16 99.69 CO 47.29 0.12 99.81 Mexico 30.81 0.08 99.89 Gulf 24.65 0.06 99.96 NM 17.3 0.04 100



### 65Receptor Area = DEN Total ppb = 6233.26; Anthro ppb = 4304.93; # Values = 70

Source Area ppb % Anthro Cum % Anthro CO 3071.13 71.34 71.34 West 458.67 10.65 81.99 WY 179.41 4.17 86.16 NM 175.88 4.09 90.25 TX 170.53 3.96 94.21 NE 58.24 1.35 95.56 Mexico 49.97 1.16 96.72 KS 30.99 0.72 97.44 SD 26.7 0.62 98.06 OK 23.03 0.53 98.6 East 12.44 0.29 98.89 Canada 9.82 0.23 99.11 MO 4.86 0.11 99.23 ND 4.48 0.1 99.33 LA 4.48 0.1 99.44 AR 3.55 0.08 99.52 IL 3.35 0.08 99.6 AL 3.09 0.07 99.67 MS 2.66 0.06 99.73 IA 2.32 0.05 99.78 TN 2.19 0.05 99.83 IN 2 0.05 99.88 KY 1.66 0.04 99.92 Gulf 1.45 0.03 99.95 WI 1.05 0.02 99.98 MI 0.98 0.02 100



### 66Receptor Area = DFW Total ppb = 112122.81; Anthro ppb = 99339.01; # Values = 1173

Source Area ppb % Anthro Cum % Anthro TX 57753.24 58.14 58.14 East 7574.47 7.62 65.76 LA 6707.36 6.75 72.51 AR 5979.21 6.02 78.53 MS 3928.71 3.95 82.49 AL 3271.39 3.29 85.78 OK 2965.01 2.98 88.77 TN 2806.15 2.82 91.59 KY 1412.48 1.42 93.01 MO 1284.75 1.29 94.31 IL 995.1 1 95.31 IN 867.84 0.87 96.18 KS 806.65 0.81 96.99 Canada 632.88 0.64 97.63 West 513.98 0.52 98.15 Gulf 354.55 0.36 98.5 IA 263.08 0.26 98.77 MI 222.5 0.22 98.99 NE 220.39 0.22 99.22 WI 148.67 0.15 99.37 Mexico 145.16 0.15 99.51 WY 124.03 0.12 99.64 CO 111.42 0.11 99.75 SD 95.53 0.1 99.84 ND 82.55 0.08 99.93 NM 71.9 0.07 100



### 67Receptor Area = ELP Total ppb = NA; Anthro ppb = NA; # Values = NA

Source Area ppb % Anthro Cum % Anthro WY NA NA NA WI NA NA NA West NA NA NA TX NA NA NA TN NA NA NA SD NA NA NA OK NA NA NA NM NA NA NA NE NA NA NA ND NA NA NA MS NA NA NA MO NA NA NA MI NA NA NA Mexico NA NA NA LA NA NA NA KY NA NA NA KS NA NA NA IN NA NA NA IL NA NA NA IA NA NA NA Gulf NA NA NA East NA NA NA CO NA NA NA Canada NA NA NA AR NA NA NA AL NA NA NA



### 68Receptor Area = HGB Total ppb = 103545.56; Anthro ppb = 94208.17; # Values = 1047

Source Area ppb % Anthro Cum % Anthro TX 47955.97 50.9 50.9 LA 13395.93 14.22 65.12 East 8010.07 8.5 73.63 MS 4736.11 5.03 78.65 AL 3343.35 3.55 82.2 AR 3103.48 3.29 85.5 Gulf 3022.44 3.21 88.7 TN 2676.29 2.84 91.55 KY 1864.89 1.98 93.53 IL 1208.33 1.28 94.81 IN 1168.51 1.24 96.05 MO 1148.38 1.22 97.27 Canada 582.7 0.62 97.89 West 401.16 0.43 98.31 KS 298.01 0.32 98.63 OK 240.3 0.26 98.88 MI 199.46 0.21 99.09 IA 180.89 0.19 99.29 WI 141.49 0.15 99.44 CO 108.99 0.12 99.55 NE 98.89 0.1 99.66 WY 96.45 0.1 99.76 NM 62.03 0.07 99.83 ND 61.15 0.06 99.89 SD 54.77 0.06 99.95 Mexico 48.11 0.05 100



### 69Receptor Area = KC Total ppb = 19468.27; Anthro ppb = 16607.99; # Values = 216

Source Area ppb % Anthro Cum % Anthro KS 6810.84 41.01 41.01 MO 3234.8 19.48 60.49 OK 1310.01 7.89 68.37 AR 942.35 5.67 74.05 IL 784.12 4.72 78.77 East 714.54 4.3 83.07 TX 623.8 3.76 86.83 IN 435.77 2.62 89.45 KY 327.67 1.97 91.43 TN 325.37 1.96 93.38 MS 178.38 1.07 94.46 AL 166.56 1 95.46 Canada 129.71 0.78 96.24 LA 119.44 0.72 96.96 West 117.06 0.7 97.67 IA 77.54 0.47 98.13 MI 69.02 0.42 98.55 WI 43.59 0.26 98.81 NE 39.39 0.24 99.05 Mexico 31.58 0.19 99.24 WY 27.88 0.17 99.41 CO 25.22 0.15 99.56 NM 20.21 0.12 99.68 SD 19.5 0.12 99.8 Gulf 18.28 0.11 99.91 ND 15.35 0.09 100



### 70Receptor Area = MEM Total ppb = 74754.76; Anthro ppb = 67083.18; # Values = 781

Source Area ppb % Anthro Cum % Anthro TN 24680.2 36.79 36.79 AR 10950.29 16.32 53.11 East 8166.72 12.17 65.29 KY 4703.49 7.01 72.3 MS 4296.21 6.4 78.7 AL 3092.16 4.61 83.31 MO 2228.12 3.32 86.63 IN 2170.36 3.24 89.87 IL 2136.9 3.19 93.06 LA 969.09 1.44 94.5 TX 890.06 1.33 95.83 Canada 727.21 1.08 96.91 MI 324.34 0.48 97.39 West 284.88 0.42 97.82 OK 265.73 0.4 98.22 KS 210.71 0.31 98.53 WI 197.73 0.29 98.82 IA 183.15 0.27 99.1 Gulf 167.16 0.25 99.35 NE 99.72 0.15 99.49 WY 74.46 0.11 99.61 CO 65.34 0.1 99.7 ND 63.98 0.1 99.8 SD 63.36 0.09 99.89 Mexico 39.34 0.06 99.95 NM 32.44 0.05 100



### 71Receptor Area = OKC Total ppb = 12751.49; Anthro ppb = 11095.86; # Values = 142

Source Area ppb % Anthro Cum % Anthro OK 5217.73 47.02 47.02 TX 1992.68 17.96 64.98 AR 716.97 6.46 71.44 East 707.27 6.37 77.82 LA 413.86 3.73 81.55 MS 339.24 3.06 84.61 AL 276.57 2.49 87.1 TN 264.75 2.39 89.48 MO 211.14 1.9 91.39 KS 151.44 1.36 92.75 KY 149.22 1.34 94.1 IL 136.66 1.23 95.33 IN 118.75 1.07 96.4 Canada 73.16 0.66 97.06 West 72.69 0.66 97.71 MI 45.01 0.41 98.12 NE 37.46 0.34 98.46 IA 34.91 0.31 98.77 Gulf 22.39 0.2 98.97 WI 21.78 0.2 99.17 WY 18.86 0.17 99.34 Mexico 18.08 0.16 99.5 SD 16.09 0.15 99.65 CO 13.71 0.12 99.77 NM 12.97 0.12 99.89 ND 12.5 0.11 100



### 72Receptor Area = PHX Total ppb = NA; Anthro ppb = NA; # Values = NA

Source Area ppb % Anthro Cum % Anthro WY NA NA NA WI NA NA NA West NA NA NA TX NA NA NA TN NA NA NA SD NA NA NA OK NA NA NA NM NA NA NA NE NA NA NA ND NA NA NA MS NA NA NA MO NA NA NA MI NA NA NA Mexico NA NA NA LA NA NA NA KY NA NA NA KS NA NA NA IN NA NA NA IL NA NA NA IA NA NA NA Gulf NA NA NA East NA NA NA CO NA NA NA Canada NA NA NA AR NA NA NA AL NA NA NA



### 73Receptor Area = San Antonio Total ppb = 10070.39; Anthro ppb = 8877.24; # Values = 110

Source Area ppb % Anthro Cum % Anthro TX 4734.79 53.34 53.34 East 914.96 10.31 63.64 LA 872.62 9.83 73.47 MS 387.03 4.36 77.83 AL 347.69 3.92 81.75 TN 322.8 3.64 85.39 AR 319.81 3.6 88.99 KY 213.13 2.4 91.39 Gulf 122.39 1.38 92.77 IN 111.34 1.25 94.02 MO 104.39 1.18 95.2 IL 103.27 1.16 96.36 OK 76.68 0.86 97.22 Canada 59.79 0.67 97.9 West 46.43 0.52 98.42 KS 36.13 0.41 98.83 MI 20.54 0.23 99.06 CO 14.45 0.16 99.22 WY 11.29 0.13 99.35 NE 10.29 0.12 99.47 IA 9.58 0.11 99.57 NM 9.14 0.1 99.68 Mexico 8.98 0.1 99.78 WI 8.74 0.1 99.88 SD 5.51 0.06 99.94 ND 5.48 0.06 100



### 74Receptor Area = Saint Louis Total ppb = 90940.89; Anthro ppb = 80081.38; # Values = 931

Source Area ppb % Anthro Cum % Anthro MO 28351.7 35.4 35.4 IL 25909.44 32.35 67.76 IN 5117.25 6.39 74.15 East 5078.97 6.34 80.49 KY 3633.86 4.54 85.03 TN 2022.09 2.53 87.55 AR 1492.24 1.86 89.42 TX 1159.93 1.45 90.86 Canada 1075.42 1.34 92.21 MI 1054.44 1.32 93.52 OK 957.94 1.2 94.72 IA 730.95 0.91 95.63 KS 674.98 0.84 96.48 WI 657.45 0.82 97.3 AL 508.47 0.63 97.93 West 418.8 0.52 98.45 LA 239.78 0.3 98.75 MS 234.55 0.29 99.05 NE 175.94 0.22 99.27 ND 122.41 0.15 99.42 SD 112.6 0.14 99.56 WY 95.55 0.12 99.68 CO 80.55 0.1 99.78 Mexico 70.06 0.09 99.87 Gulf 66.17 0.08 99.95 NM 39.82 0.05 100



### 75Receptor Area = Milwaukee, WI Total ppb = 78545.21; Anthro ppb = 70712.36; # Values = 794

Source Area ppb % Anthro Cum % Anthro WI 24770.05 35.03 35.03 IL 22554.49 31.9 66.93 IN 5035.52 7.12 74.05 MO 3751.72 5.31 79.35 IA 1932.66 2.73 82.09 East 1872.41 2.65 84.73 AR 1410.35 1.99 86.73 MI 1386.09 1.96 88.69 TX 1143.29 1.62 90.3 OK 981.63 1.39 91.69 KS 928.15 1.31 93.01 KY 754.35 1.07 94.07 TN 743.58 1.05 95.12 Canada 666.19 0.94 96.07 MS 563.26 0.8 96.86 AL 497.06 0.7 97.57 LA 482.83 0.68 98.25 West 382.37 0.54 98.79 NE 242.11 0.34 99.13 SD 133.8 0.19 99.32 ND 107.22 0.15 99.47 Gulf 101.53 0.14 99.62 WY 100.44 0.14 99.76 CO 68.77 0.1 99.86 Mexico 57.22 0.08 99.94 NM 45.28 0.06 100



### 76

### TABLE C-4
Receptor Area Stratification of impactlevel from each Region (ppb)

77Receptor Area = BPA # values = 384 Number of values in the ppb range

Source Area 2 to 5 5 to 10 10 to 15 15 to 20 20 to 25 >25 Mean ppb TX 0 0 12 38 42 292 34 LA 3 40 62 59 76 134 20 East 97 118 84 47 0 0 8 BC 45 244 95 0 0 0 8 MS 151 186 28 0 0 0 6 AL 147 135 9 0 0 0 4 TN 203 36 0 0 0 0 3 Gulf 155 66 11 2 0 0 3 KY 84 20 0 0 0 0 2 AR 131 35 0 0 0 0 2 MO 58 0 0 0 0 0 1 IN 60 0 0 0 0 0 1 IL 81 0 0 0 0 0 1 WY 0 0 0 0 0 0 0 WI 0 0 0 0 0 0 0 West 0 0 0 0 0 0 0 SD 0 0 0 0 0 0 0 OK 0 0 0 0 0 0 0 NM 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ND 0 0 0 0 0 0 0 MN 0 0 0 0 0 0 0 MI 0 0 0 0 0 0 0 Mexico 0 0 0 0 0 0 0 KS 0 0 0 0 0 0 0 IC 0 0 0 0 0 0 0 IA 0 0 0 0 0 0 0 CO 0 0 0 0 0 0 0 Canada 18 0 0 0 0 0 0



### 78Receptor Area = BTR # values = 465 Number of values in the ppb range

Source Area 2 to 5 5 to 10 10 to 15 15 to 20 20 to 25 >25 Mean ppb LA 0 0 0 1 5 459 51 East 40 163 73 101 25 0 10 BC 9 234 192 30 0 0 10 MS 116 236 92 8 0 0 7 AL 67 205 32 19 8 0 6 Gulf 204 44 5 0 0 0 3 TX 58 15 29 3 0 0 2 TN 64 67 0 0 0 0 2 KY 78 0 0 0 0 0 1 IN 36 0 0 0 0 0 1 IL 44 0 0 0 0 0 1 AR 34 7 0 0 0 0 1 WY 0 0 0 0 0 0 0 WI 0 0 0 0 0 0 0 West 0 0 0 0 0 0 0 SD 0 0 0 0 0 0 0 OK 0 0 0 0 0 0 0 NM 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ND 0 0 0 0 0 0 0 MO 43 0 0 0 0 0 0 MN 0 0 0 0 0 0 0 MI 0 0 0 0 0 0 0 Mexico 0 0 0 0 0 0 0 KS 0 0 0 0 0 0 0 IC 0 0 0 0 0 0 0 IA 0 0 0 0 0 0 0 CO 0 0 0 0 0 0 0 Canada 0 0 0 0 0 0 0



### 79Receptor Area = CHI # values = 459 Number of values in the ppb range

Source Area 2 to 5 5 to 10 10 to 15 15 to 20 20 to 25 >25 Mean ppb IL 0 2 5 10 7 435 47 BC 8 171 182 95 3 0 12 WI 111 71 27 26 17 22 6 MO 48 154 92 9 0 0 6 IN 129 118 60 19 7 12 6 MI 59 64 14 21 11 0 4 IA 95 63 21 0 0 0 3 East 79 42 15 2 3 10 3 Canada 77 20 9 0 0 0 2 West 2 0 0 0 0 0 1 TX 37 17 0 0 0 0 1 TN 26 1 0 0 0 0 1 OK 70 1 0 0 0 0 1 MN 17 30 0 0 0 0 1 KY 80 31 0 0 0 0 1 KS 83 0 0 0 0 0 1 AR 48 16 0 0 0 0 1 WY 0 0 0 0 0 0 0 SD 0 0 0 0 0 0 0 NM 0 0 0 0 0 0 0 NE 8 0 0 0 0 0 0 ND 0 0 0 0 0 0 0 MS 3 1 0 0 0 0 0 Mexico 0 0 0 0 0 0 0 LA 3 0 0 0 0 0 0 IC 0 0 0 0 0 0 0 Gulf 0 0 0 0 0 0 0 CO 0 0 0 0 0 0 0 AL 24 0 0 0 0 0 0



### 80Receptor Area = DEN # values = 70 Number of values in the ppb range

Source Area 2 to 5 5 to 10 10 to 15 15 to 20 20 to 25 >25 Mean ppb CO 0 0 0 0 4 66 44 BC 0 0 3 9 18 40 27 West 27 11 19 2 0 0 7 WY 27 7 1 0 0 0 3 NM 21 12 0 0 0 0 3 TX 30 6 0 0 0 0 2 NE 8 1 0 0 0 0 1 Mexico 0 0 0 0 0 0 1 WI 0 0 0 0 0 0 0 TN 0 0 0 0 0 0 0 SD 7 0 0 0 0 0 0 OK 1 0 0 0 0 0 0 ND 0 0 0 0 0 0 0 MS 0 0 0 0 0 0 0 MO 0 0 0 0 0 0 0 MN 0 0 0 0 0 0 0 MI 0 0 0 0 0 0 0 LA 0 0 0 0 0 0 0 KY 0 0 0 0 0 0 0 KS 4 0 0 0 0 0 0 IN 0 0 0 0 0 0 0 IL 0 0 0 0 0 0 0 IC 0 0 0 0 0 0 0 IA 0 0 0 0 0 0 0 Gulf 0 0 0 0 0 0 0 East 0 0 0 0 0 0 0 Canada 0 0 0 0 0 0 0 AR 0 0 0 0 0 0 0 AL 0 0 0 0 0 0 0



### 81Receptor Area = DFW # values = 1173 Number of values in the ppb range

Source Area 2 to 5 5 to 10 10 to 15 15 to 20 20 to 25 >25 Mean ppb TX 0 0 0 7 31 1135 49 BC 7 446 625 95 0 0 11 LA 230 398 217 9 0 0 6 East 385 427 181 49 0 0 6 AR 282 348 140 22 5 0 5 OK 143 42 48 46 12 2 3 MS 502 282 2 0 0 0 3 AL 464 243 0 0 0 0 3 TN 560 90 0 0 0 0 2 MO 234 14 0 0 0 0 1 KY 276 0 0 0 0 0 1 KS 90 37 0 0 0 0 1 IN 71 0 0 0 0 0 1 IL 154 0 0 0 0 0 1 Canada 28 0 0 0 0 0 1 WY 0 0 0 0 0 0 0 WI 0 0 0 0 0 0 0 West 0 0 0 0 0 0 0 SD 0 0 0 0 0 0 0 NM 0 0 0 0 0 0 0 NE 1 0 0 0 0 0 0 ND 0 0 0 0 0 0 0 MN 0 0 0 0 0 0 0 MI 0 0 0 0 0 0 0 Mexico 0 0 0 0 0 0 0 IC 0 0 0 0 0 0 0 IA 0 0 0 0 0 0 0 Gulf 0 0 0 0 0 0 0 CO 0 0 0 0 0 0 0



### 82Receptor Area = ELP # values = 0 Number of values in the ppb range

Source Area 2 to 5 5 to 10 10 to 15 15 to 20 20 to 25 >25 Mean ppb WY NA NA NA NA NA NA NA WI NA NA NA NA NA NA NA West NA NA NA NA NA NA NA TX NA NA NA NA NA NA NA TN NA NA NA NA NA NA NA SD NA NA NA NA NA NA NA OK NA NA NA NA NA NA NA NM NA NA NA NA NA NA NA NE NA NA NA NA NA NA NA ND NA NA NA NA NA NA NA MS NA NA NA NA NA NA NA MO NA NA NA NA NA NA NA MN NA NA NA NA NA NA NA MI NA NA NA NA NA NA NA Mexico NA NA NA NA NA NA NA LA NA NA NA NA NA NA NA KY NA NA NA NA NA NA NA KS NA NA NA NA NA NA NA IN NA NA NA NA NA NA NA IL NA NA NA NA NA NA NA IC NA NA NA NA NA NA NA IA NA NA NA NA NA NA NA Gulf NA NA NA NA NA NA NA East NA NA NA NA NA NA NA CO NA NA NA NA NA NA NA Canada NA NA NA NA NA NA NA BC NA NA NA NA NA NA NA AR NA NA NA NA NA NA NA AL NA NA NA NA NA NA NA



### 83Receptor Area = HGB # values = 1047 Number of values in the ppb range

Source Area 2 to 5 5 to 10 10 to 15 15 to 20 20 to 25 >25 Mean ppb TX 0 1 2 12 42 990 46 LA 40 258 400 278 57 9 13 BC 34 716 282 15 0 0 9 East 309 280 256 104 0 0 8 MS 626 327 17 0 0 0 5 TN 556 87 0 0 0 0 3 Gulf 315 129 30 15 3 0 3 AR 432 192 0 0 0 0 3 AL 387 241 0 0 0 0 3 KY 465 18 0 0 0 0 2 MO 237 0 0 0 0 0 1 IN 142 0 0 0 0 0 1 IL 235 0 0 0 0 0 1 Canada 43 0 0 0 0 0 1 WY 0 0 0 0 0 0 0 WI 0 0 0 0 0 0 0 West 0 0 0 0 0 0 0 SD 0 0 0 0 0 0 0 OK 1 0 0 0 0 0 0 NM 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ND 0 0 0 0 0 0 0 MN 0 0 0 0 0 0 0 MI 0 0 0 0 0 0 0 Mexico 0 0 0 0 0 0 0 KS 0 0 0 0 0 0 0 IC 0 0 0 0 0 0 0 IA 0 0 0 0 0 0 0 CO 0 0 0 0 0 0 0



### 84Receptor Area = KC # values = 216 Number of values in the ppb range

Source Area 2 to 5 5 to 10 10 to 15 15 to 20 20 to 25 >25 Mean ppb KS 0 0 0 2 23 191 32 MO 24 39 37 42 56 14 15 BC 0 20 132 64 0 0 13 OK 30 61 33 18 0 0 6 IL 61 36 21 0 0 0 4 AR 53 79 8 0 0 0 4 TX 33 3 24 6 0 0 3 East 115 14 9 4 0 0 3 TN 36 9 0 0 0 0 2 KY 81 0 0 0 0 0 2 IN 51 33 0 0 0 0 2 West 0 0 0 0 0 0 1 MS 36 0 0 0 0 0 1 LA 14 0 0 0 0 0 1 Canada 15 0 0 0 0 0 1 AL 22 0 0 0 0 0 1 WY 0 0 0 0 0 0 0 WI 0 0 0 0 0 0 0 SD 0 0 0 0 0 0 0 NM 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ND 0 0 0 0 0 0 0 MN 0 0 0 0 0 0 0 MI 0 0 0 0 0 0 0 Mexico 0 0 0 0 0 0 0 IC 0 0 0 0 0 0 0 IA 5 0 0 0 0 0 0 Gulf 0 0 0 0 0 0 0 CO 0 0 0 0 0 0 0



### 85Receptor Area = MEM # values = 781 Number of values in the ppb range

Source Area 2 to 5 5 to 10 10 to 15 15 to 20 20 to 25 >25 Mean ppb TN 8 37 41 85 80 530 32 AR 78 157 163 95 66 122 14 East 144 211 147 58 52 68 10 BC 8 467 259 43 4 0 10 MS 239 127 87 48 14 9 6 KY 145 238 165 15 0 0 6 AL 204 194 60 4 0 0 4 MO 262 123 14 2 0 0 3 IN 216 105 43 0 0 0 3 IL 228 72 46 3 0 0 3 TX 53 34 13 0 0 0 1 LA 103 45 7 0 0 0 1 Canada 69 0 0 0 0 0 1 WY 0 0 0 0 0 0 0 WI 6 0 0 0 0 0 0 West 0 0 0 0 0 0 0 SD 0 0 0 0 0 0 0 OK 12 0 0 0 0 0 0 NM 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ND 0 0 0 0 0 0 0 MN 0 0 0 0 0 0 0 MI 25 0 0 0 0 0 0 Mexico 0 0 0 0 0 0 0 KS 10 0 0 0 0 0 0 IC 0 0 0 0 0 0 0 IA 7 0 0 0 0 0 0 Gulf 0 0 0 0 0 0 0 CO 0 0 0 0 0 0 0



### 86Receptor Area = OKC # values = 142 Number of values in the ppb range

Source Area 2 to 5 5 to 10 10 to 15 15 to 20 20 to 25 >25 Mean ppb OK 0 0 0 2 11 129 37 TX 10 15 21 34 20 17 14 BC 0 55 75 12 0 0 12 East 54 63 8 0 0 0 5 AR 38 50 19 0 0 0 5 LA 78 17 0 0 0 0 3 TN 52 3 0 0 0 0 2 MS 65 18 0 0 0 0 2 AL 62 3 0 0 0 0 2 West 0 0 0 0 0 0 1 MO 19 1 5 2 0 0 1 KY 19 0 0 0 0 0 1 KS 13 10 1 0 0 0 1 IN 14 0 0 0 0 0 1 IL 18 3 0 0 0 0 1 Canada 0 0 0 0 0 0 1 WY 0 0 0 0 0 0 0 WI 0 0 0 0 0 0 0 SD 0 0 0 0 0 0 0 NM 0 0 0 0 0 0 0 NE 5 0 0 0 0 0 0 ND 0 0 0 0 0 0 0 MN 0 0 0 0 0 0 0 MI 0 0 0 0 0 0 0 Mexico 0 0 0 0 0 0 0 IC 0 0 0 0 0 0 0 IA 0 0 0 0 0 0 0 Gulf 0 0 0 0 0 0 0 CO 0 0 0 0 0 0 0



### 87Receptor Area = PHX # values = 0 Number of values in the ppb range

Source Area 2 to 5 5 to 10 10 to 15 15 to 20 20 to 25 >25 Mean ppb WY NA NA NA NA NA NA NA WI NA NA NA NA NA NA NA West NA NA NA NA NA NA NA TX NA NA NA NA NA NA NA TN NA NA NA NA NA NA NA SD NA NA NA NA NA NA NA OK NA NA NA NA NA NA NA NM NA NA NA NA NA NA NA NE NA NA NA NA NA NA NA ND NA NA NA NA NA NA NA MS NA NA NA NA NA NA NA MO NA NA NA NA NA NA NA MN NA NA NA NA NA NA NA MI NA NA NA NA NA NA NA Mexico NA NA NA NA NA NA NA LA NA NA NA NA NA NA NA KY NA NA NA NA NA NA NA KS NA NA NA NA NA NA NA IN NA NA NA NA NA NA NA IL NA NA NA NA NA NA NA IC NA NA NA NA NA NA NA IA NA NA NA NA NA NA NA Gulf NA NA NA NA NA NA NA East NA NA NA NA NA NA NA CO NA NA NA NA NA NA NA Canada NA NA NA NA NA NA NA BC NA NA NA NA NA NA NA AR NA NA NA NA NA NA NA AL NA NA NA NA NA NA NA



### 88Receptor Area = SAN # values = 110 Number of values in the ppb range

Source Area 2 to 5 5 to 10 10 to 15 15 to 20 20 to 25 >25 Mean ppb TX 0 0 0 0 0 110 43 BC 0 34 76 0 0 0 11 LA 27 58 12 13 0 0 8 East 12 67 31 0 0 0 8 MS 73 21 0 0 0 0 4 TN 91 0 0 0 0 0 3 AR 49 16 0 0 0 0 3 AL 45 20 0 0 0 0 3 KY 58 0 0 0 0 0 2 OK 14 0 0 0 0 0 1 MO 0 0 0 0 0 0 1 IN 2 0 0 0 0 0 1 IL 0 0 0 0 0 0 1 Gulf 24 0 0 0 0 0 1 Canada 0 0 0 0 0 0 1 WY 0 0 0 0 0 0 0 WI 0 0 0 0 0 0 0 West 0 0 0 0 0 0 0 SD 0 0 0 0 0 0 0 NM 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ND 0 0 0 0 0 0 0 MN 0 0 0 0 0 0 0 MI 0 0 0 0 0 0 0 Mexico 0 0 0 0 0 0 0 KS 0 0 0 0 0 0 0 IC 0 0 0 0 0 0 0 IA 0 0 0 0 0 0 0 CO 0 0 0 0 0 0 0



### 89Receptor Area = STL # values = 931 Number of values in the ppb range

Source Area 2 to 5 5 to 10 10 to 15 15 to 20 20 to 25 >25 Mean ppb MO 16 31 72 160 97 551 30 IL 32 44 63 144 153 494 28 BC 0 332 505 90 4 0 11 IN 153 276 195 2 0 0 5 East 136 141 132 57 22 8 5 KY 242 255 53 9 0 0 4 TN 103 141 20 0 0 0 2 AR 111 59 25 3 0 0 2 WI 79 14 0 0 0 0 1 TX 101 55 5 0 0 0 1 OK 101 52 5 0 0 0 1 MI 185 28 0 0 0 0 1 KS 88 16 0 0 0 0 1 IA 73 27 5 0 0 0 1 Canada 178 24 2 0 0 0 1 AL 64 13 0 0 0 0 1 WY 0 0 0 0 0 0 0 West 20 0 0 0 0 0 0 SD 0 0 0 0 0 0 0 NM 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ND 0 0 0 0 0 0 0 MS 1 0 0 0 0 0 0 MN 19 26 0 0 0 0 0 Mexico 0 0 0 0 0 0 0 LA 3 0 0 0 0 0 0 IC 0 0 0 0 0 0 0 Gulf 0 0 0 0 0 0 0 CO 0 0 0 0 0 0 0



### 90Receptor Area = WI # values = 794 Number of values in the ppb range

Source Area 2 to 5 5 to 10 10 to 15 15 to 20 20 to 25 >25 Mean ppb WI 31 71 62 96 90 442 31 IL 15 29 36 74 127 502 28 BC 20 495 265 14 0 0 9 IN 206 175 121 41 24 7 6 MO 182 363 33 0 0 0 5 MI 149 54 10 0 0 0 2 IA 218 101 15 0 0 0 2 East 57 146 16 3 8 0 2 AR 181 88 0 0 0 0 2 TX 230 36 0 0 0 0 1 TN 74 37 0 0 0 0 1 OK 225 0 0 0 0 0 1 MS 45 45 0 0 0 0 1 MN 50 27 9 1 0 0 1 LA 65 16 0 0 0 0 1 KY 101 28 0 0 0 0 1 KS 148 0 0 0 0 0 1 Canada 60 4 0 0 0 0 1 AL 50 27 0 0 0 0 1 WY 0 0 0 0 0 0 0 West 13 0 0 0 0 0 0 SD 0 0 0 0 0 0 0 NM 0 0 0 0 0 0 0 NE 20 0 0 0 0 0 0 ND 8 0 0 0 0 0 0 Mexico 0 0 0 0 0 0 0 IC 0 0 0 0 0 0 0 Gulf 0 0 0 0 0 0 0 CO 0 0 0 0 0 0 0



### 91

# Modeling Data for New Mexico

From EPA Regions 6 and 7 for Ozone--

-- Source Area

-~

----- Receptor Area =

### ME!

- ------ 0.4 Receptor Area = STL

Receptor Area = PHX I 0 0

### Source Region

### = NM

-- -. - - 

### Receptor Area % total

.- 

### DEN 14 OKC DFW

--pp.p

### MEM

..~ 

### BTR

- 

### HGB

-. - - 

### 57

-- 

### BPA

-- 

### 0.1 7 SAN 0.1 PHX ELP

- -- . -

- 

### KC

~ - - 

### 1 STL

p~ . -----

~ - 

### 2 CHI

~ - .- 

### 0.2

.- --- - - - - 

### 1 WI 0.2 01 0.2, 0

### NM 0
Receptor Area 

### = BTR

-- 

### #values 

### = 465

- 

### NM

. .

-. - 

### 3

## / 7

___/..-

-- 

## ,-_ ..~-

~ 

### NM

.- - ..- . -
. I

- -. - 

### Receptor

... 

### Area 

### = ELP # 

### values 

### = 0

..-

~ 

### NM

-- 

### Receptor Area 

### = 

### ~T#-llb47 

## NM

- - -. ..

. .

- 

### 0

NM

~-

. -- --
. - . . . -- ..- 

### Receptor Area 

### = OKC # values 

### = 142

. ..

- .- 

### NM

- 

### 1

- --PA --

-P-- 

### Receptor Area 

### = PHX # values

-- 

### = 0 NM

-- -.

. -- -
... -

~ . -- 

### Receptor Area 

### = SAN 

# I# values 

### = 1 10

. ~~ - 

### NM 0 0 0 0I

--- - ---

-- -

. - --. - 

### Source Area 10t~15to20

- .- 

### -20to25 >251Meanppb #

### values 

### = 384 0

~ 

### 0 0 

# o_-lp-- 0 Receptor Area 

### = BTR

- 

### 0 0

~ 

### 0 O/

-



## T--- 0

.-.. -- 

### Receptor Area 

### = DEN 2 1 

# 1 12 0 0 

# C-

- -~ 

### 0 

### +- - 

## RZ@EA~~~W--- 0

-

### 0

--. -

..- 

### Receptor Area 

### = E~P

- - - 

### Receptor Area 

### = HGB

- - 

### Receptor Area 

### = MEM ---+ 

### ReceptorArea 

### = OKC Receptor Area 

### = PHX #

### values 

### = 1173

-- -

~ ~- 

### 0

- -- 

### 0 0 

### (I 

## / 0 #

### values 

### = 0 # 

### values

### = 1047 - .- 

### NA

-- . - - - 

### 0

0 ReceptorArea 

### = SAN NA

.-

.- 

### 0

0

- 

### 0 NA 0

-- 

### 0 0 NA # 

### values=-781 

### 1 0

0 NA NA

.-

-. 

# .+.

.



### Oi 

### 0 01

- 

### 0 0: 0

# 

### values 

### = 110 . #

..

-. 

### values

-- 

### = 142 # 

### values 

### = 0 0 

## i 0 NA 0 NA

.

## 1 NA 01 0

0 NA NA 0

- -

. 

### NA

. --

..-. 

### 0 0

-



### 0 -



### NA

- -- 

### 0 NA

--~



### 0

### ReceptorArea 

### = BPA 

## [

-- 

### Total ppb

### = 36575.58; Anthro ppb = 

### 33348.62;#Values 

### = 384

-. .. 1 

### SourceArea NM

... 

### ReceptorArea 

### = BTR 

### PP~

-

### 18.44

Total ppb 

### =44132.92; Anthro ppb

### =39470.06; #Values 

### =465 SourceArea p--C---l%Anthro 

### PP~ Cum%Anthro NM -_ ' 

### 20.23

- 

### ~eceptor Area 

### = DEN Total ppb

### =623326; Anthro ppb 

### =4304.93;#Values 

### = 70 SourceArea

- -- 

### NM

-- .- 

### 90.25

-
. 

### ReceptorArea 

### = DFW-'--- %

### Anthro

- 

### 0.06

Total ppb

### = 112122.81; Anthro ppb 

### = 99339.01; #Values 

### = 1173 SourceArea

-- 

## 1 Cum

--- 

### %Anthro 99.95

NM 71.9 0.07' 100

- --

-. -- 

### Receptor Area 

### = ELP ~ppb~nthro

-- 

### ppb

### = NA; # 

### Values

- 

### = 

## NA SourceArea

-- -- 

### NM

-- .- -- .- 

### Receptor Area 

### = HGB

-- 

### Total ppb

### = 103545.56;Anthro ppb 

### = 94208.17; # 

### Values = 

### 1047 SourceArea NM

--. 

### 99.83
Receptor Area 

### = MEM

-- 

### Total ppb

### = 74754.76; Anthro ppb

### = 67083.18;#values 

### =781 SourceArea NM 100

- 

### ~ece~tor~rea 

### = OKC Total ppb =12751.49; Anthro ppb

### = SourceArea

--- 

### NM

-- 

### 99.89

-- 

### ReceptorArea = 

### PHX

-- 

### Total ppb

### = NA; Anthro ppb

### = NA;#Values 

### = NA SourceArea

-- 

### NM

--

-- 

### ~ece$or Area 

### = SAN

~ 

### Total

-- 

### ppb

### = 10070.%; Anthro ppb

### = 8877.24;#Values 

### = 110

-- 

### Source Area NM 99.68 - 

### PP~ %

--



### Anthro 1Cum46Anthro- - -- - Source Reg~on = NM

. ReceptorArea SAN - 0 0 0 0

- - PHX

-- 0 0 0 0 0 OKC 0 - -O 0 !!EM 0 0 0 0 HGB

--- 0 0 ELP 0

- 0 0 0 0 DFW - 

### o o 00 0 

### o

- 0 DEN _- -0

_ - - -- 0 0

-. 0

### 1 12 1714 

### 0-0 c! 0 0 0 BTR

._ 0 0 0 0'

--A__ 0

# Lpp 0 0 0- --- OOO-- 0.

-- 

### o~--- 0 BPA 0 0 0 O! 0; 0 0 0 0, 0 0 0 0, 0-. 

# 1

-.

-- -

-- -.- 

# t
--.-L
Receptor Area

- 

### DEN DFW 1173 

### OKC

.. - 

### HGB MEM

-- . . -. - - 

### BTR

-~. 

### 465

-. 

### BPA 384

-. - 

### SAN

-- -. . --. - --. 

### 110

~ 

### PHX

.~ 

### # 

### values 

### = 0

...~ 

### 0 0 0

- .~~

~ 

### ELP # 

### values 

### = 0 0 0 0 0 0.. .. . - -- . . - 

### El

~

~

.



# n

. - -. - 

### -7----
-~ 

### Canada-

- - +

..--- MI



## E _c~
-.

~ 

## ML

~ . . .

. -. - -- -

NM 0.1 0 92 8/27/2002 4 0.1 0 92 8/28/2002 7 IC I

~ --.- 

## ip~-

t



### EaS'.__..

. .

.- -. -



### !L

-.~ -_ L

p~~ 

### !!!L

-.___._- WestReceptorArea = MEM H~ghest Average Contnbution Second H~ghest Average Contnbut~on0 0 0 none 0 0 0 0 none

d-i-. 

# , L 

# 1Highest Average Contribution

- Source Area %total ppb

## 1total-~ . - ~-

~

~ ~

~ --

~~- - -~-J

- -- - - . ReceptorArea.

- .. 

### ME-

- - OKC

- . -. -

. -

.. ~~ HGB

- SAN

-- -- ---. . BPA

- . - PHX-~ ELP

-.

+-
-~

### ~-~,

- ReceptorArea DEN

- 

### MEM. DFW

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# TIC 147 8,467 

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MS

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### Receptor Area 

### = BPA Total ppb 

### = 36575.58; 

### Anthro ppb 

### = 33348.62; # 

### Values 

### = 384 

### Source Area TX 

### LA East MS AL Gulf TN AR KY IL IN MO Canada West KS 

### I A MI OK WI NE CO WY ND SD NM Mexico
Receptor Area 

### = BTR Total ppb 

### = 44132.92; 

### Anthro ppb 

### = 39470.06;

### #Values 

### =465 

### Source Area LA East MS AL 

### PP~ %

### Anthro Cum %

### Anthro 13070.59 39.19 39.19

7862.66 23.58 62.77 2991.15 8.97 71.74 2160.52 6.48 78.22 1589.91 4.77 82.99 1234.22 3.7 86.69

996.71 2.99 89.68 805.47 2.42 92.09 615.55 1.85 93.94 416.54 1.25 95.19 383.99 1.15 96.34 366.34 1.1 97.44 185.65 0.56 97.99 127.87 0.38 98.38 107.78 0.32 98.7 73 0.22 98.92 68.03 0.2 99.12 58.38 0.18 99.3 57.59 0.17 99.47

37.5 0.11 99.58 32.68 0.1 99.68 30.84 0.09 99.77 20.48 0.06 99.83 18.94 0.06 99.89 18.44 0.06 99.95

17.8 0.05 100



### PPb %

### Anthro Cum %

### Anthro 23617.61 59.84 59.84

4527.91 11.47 71.31 3420.97 8.67 79.98

2723.1 6.9 86.87

### Gulf 

### TN TX 

### KY AR IL IN MO West Canada KS OK I 

### A WI MI 

### WY CO NE SD NM ND Mexico
ReceptorArea 

### = DEN Total ppb 

### = 6233.26;

### Anthro ppb 

### = 4304.93; 

### #Values 

### = 70 

### SourceArea CO West 

### WY NM TX NE Mexico KS SD OK East 

### PP~ %Anthro Cum %Anthro 3071.13 71.34 71.34

458.67 10.65 81.99 179.41 4.17 86.16 175.88 4.09 90.25 170.53 3.96 94.21

58.24 1.35 95.56 49.97 1.16 96.72 30.99 0.72 97.44

26.7 0.62 98.06 23.03 0.53 98.6 12.44 0.29 98.89

### Canada MO ND LA AR 

### IL AL MS 

### I A TN IN KY Gulf WI MI

Receptor Area 

### = DFW Total ppb 

### = 112122.81;Anthro ppb 

### = 99339.01; # 

### Values 

### = 1173 SourceArea TX East LA AR MS AL OK TN 

### KY MO IL IN KS Canada West Gulf I A MI 

### PP~ '41Anthro Cum 

### %Anthro 57753.24 58.14 58.14

7574.47 7.62 65.76 6707.36 6.75 72.51 5979.21 6.02 78.53 3928.71 3.95 82.49 3271.39 3.29 85.78 2965.01 2.98 88.77 2806.15 2.82 91.59 1412.48 1.42 93.01 1284.75 1.29 94.31

995.1 1 95.31 867.84 0.87 96.18 806.65 0.81 96.99 632.88 0.64 97.63 513.98 0.52 98.15 354.55 0.36 98.5 263.08 0.26 98.77

222.5 0.22 98.99

### NE WI Mexico 

### WY CO SD ND NM
Receptor Area 

### = ELP Total ppb 

### = NA; Anthro ppb 

### = NA;#Values 

### = NA SourceArea 

### WY WI West TX TN SD OK NM NE ND MS MO MI Mexico LA KY KS IN 

### IL I A Gulf East CO Canada AR %

### Anthro Cum %

### Anthro NA N A NA NA N A N A NA N A NA NA N A NA NA N A NA N A NA N 

### A N A NA NA NA NA NA NA N A NA N A NA NA NA NA N A N A N A N A NA NA NA NA N A N A NA NA NA NA N A N A NA NA

### Receptor Area 

### = HGB Total ppb

### = 103545.56;

### Anthro ppb 

### = 94208.17; # 

### Values 

### = 1047 

### Source Area TX LA 

### East MS AL AR Gulf TN 

### KY IL IN MO Canada West KS OK MI I A WI CO NE WY 

### NM ND SD Mexico
Receptor Area 

### = MEM Total ppb

### = 74754.76; 

### Anthro ppb

### = 67083.18; 

### #Values 

### = 781 

### Source Area TN AR 

### PP~ %Anthro Cum %

### Anthro 47955.97 50.9 50.9 13395.93 14.22 65.12

8010.07 8.5 73.63 4736.11 5.03 78.65 3343.35 3.55 82.2 3103.48 3.29 85.5 3022.44 3.21 88.7 2676.29 2.84 91.55 1864.89 1.98 93.53 1208.33 1.28 94.81 1168.51 1.24 96.05 1148.38 1.22 97.27

582.7 0.62 97.89 401.16 0.43 98.31 298.01 0.32 98.63

240.3 0.26 98.88 199.46 0.21 99.09 180.89 0.19 99.29 141.49 0.15 99.44 108.99 0.12 99.55 98.89 0.1 99.66 96.45 0.1 99.76 62.03 0.07 99.83 61.15 0.06 99.89 54.77 0.06 99.95 48.1 1 0.05 100



### PP~ %

### Anthro Cum %Anthro

24680.2 36.79 36.79 10950.29 16.32 53.11

### East 

### KY MS AL MO IN 

### IL LA TX Canada MI West OK KS WI I A Gulf NE 

### WY CO ND SD Mexico NM

ReceptorArea 

### = OKC Total ppb 

### = 12751.49;Anthro ppb 

### = 11 095.86; # Values 

### = 142 SourceArea OK TX AR East LA MS AL TN MO 

### PP~ %

### Anthro Cum 

### %Anthro 5217.73 47.02 47.02 1992.68 17.96 64.98

716.97 6.46 71.44 707.27 6.37 77.82 413.86 3.73 81.55 339.24 3.06 84.61 276.57 2.49 87.1 264.75 2.39 89.48 211.14 1.9 91.39

### KS 

### KY IL IN Canada West MI NE I A Gulf WI 

### WY Mexico SD CO NM ND
ReceptorArea 

### = PHX Total ppb

### = NA;Anthro ppb 

### = NA; #Values 

### = NA SourceArea 

### WY WI West TX TN SD OK NM NE ND MS MO MI Mexico LA 

### KY %

### Anthro Cum 

### %Anthro NA NA NA NA N A NA NA NA NA NA N A NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA

### KS IN IL I A Gulf East CO Canada AR AL

Receptor Area 

### = SAN Total ppb 

### = 10070.39;Anthro ppb 

### = 8877.24; #Values 

### = 110 Source Area TX East LA MS AL TN AR 

### KY Gulf IN MO I L OK Canada West KS MI CO WY NE I A NM Mexico 

### PP~ %

### Anthro Cum %

### Anthro 4734.79 53.34 53.34

914.96 10.31 63.64 872.62 9.83 73.47 387.03 4.36 77.83 347.69 3.92 81.75

322.8 3.64 85.39 319.81 3.6 88.99 213.13 2.4 91.39 122.39 1.38 92.77 111.34 1.25 94.02 104.39 1.18 95.2 103.27 1.16 96.36

76.68 0.86 97.22 59.79 0.67 97.9 46.43 0.52 98.42 36.13 0.41 98.83 20.54 0.23 99.06 14.45 0.16 99.22 1 1.29 0.13 99.35 10.29 0.12 99.47

9.58 0.11 99.57 9.14 0.1 99.68 8.98 0.1 99.78

### Source Region

### =AL
Receptor Area BTR SAN PHX 

### 0KC MEM HGB ELP DFW DEN BPA
Source Region

### =AR
Receptor Area MEM DFW SAN PHX OKC HGB ELP DEN BTR BPA
Source Region 

### = BC
Receptor Area DEN MEM SAN PHX 

### 0KC Number of values in the ppb range 2 

### to 5 %

### total 5 

### to 10 %

### total 10

### to 15 % 

### total 15

### to 20 

### % total 20 

### to 25 

### % total >25 

### % total Mean ppb # 

### values 0 0 0 0 67 14.41 205 44.09 32 6.88 19 4.09 8 1 0 0 0 0 45 40.91 20 18.18 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 62 43.66 3 2.11 0 0 0 0 0 0 0 0 0 0 204 26.12 194 24.84 60 7.68 4 0.51 0 0 0 0 0 0 387 36.96 241 23.02 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 464 39.56 243 20.72 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 147 38.28 135 35.16 9 2.34 0 0 0 0



### Number ofvalues in the ppb range 2 

### to 5 

### % total 5 

### to 10 

### % total 10

### to 15 

### % total 15

### to 20 

### % total 20 

### to 25 

### % total >25 

### %total Mean ppb #values 0 0 0 0 78 9.99 157 20.1 163 20.87 95 12.16 66 8 0 0 0 0 282 24.04 348 29.67 140 11.94 22 1.88 5 0 0 0 0 0 49 44.55 16 14.55 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 38 26.76 50 35.21 19 13.38 0 0 0 0 0 0 0 0 432 41.26 192 18.34 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 34 7.31 7 1.51 0 0 0 0 0 0 0 0 0 0 131 34.11 35 9.1 1 0 0 0 0 0 0



### Number of values in the ppb range 2 

### to 5 %

### total 5 

### to 10 

### % total 10

### to 15 %

### total 15

### to 20 

### % total 20 

### to 25 % 

### total >25 % 

### total Mean ppb # 

### values 0 0 0 0 0 0 0 0 3 4.29 9 12.86 18 25 0 0 0 0 8 1.02 467 59.8 259 33.16 43 5.51 4 0 0 0 0 0 0 0 34 30.91 76 69.09 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 55 38.73 75 52.82 12 8.45 0 0

### HGB ELP DFW BTR BPA
Source Region

### = CO
ReceptorArea DEN SAN PHX OKC MEM HGB ELP DFW BTR B PA Number of values inthe ppb range 2 

### to 5 % 

### total 5 

### to 10 %

### total 10

### to 15 % 

### total 15

### to 20 %

### total 20 

### to 25 %

### total >25 % 

### total Mean ppb # 

### values 0 0 0 0 0 0 0 0 0 0 0 0 4 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0


### Source Region

### = Canada Number of values inthe ppb range ReceptorArea 2 

### to 5 

### % total 5 

### to 10 % 

### total 10

### to 15 % 

### total 15

### to 20 

### %total 20

### to 25 % 

### total >25 %

### total Mean ppb # 

### values SAN 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

### PHX 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

### OKC 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

### MEM 0 0 0 0 69 8.83 0 0 0 0 0 0 0 0 

### HGB 0 0 0 0 43 4.11 0 0 0 0 0 0 0 0 

### ELP 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

### DFW 0 0 0 0 28 2.39 0 0 0 0 0 0 0 0 

### DEN 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

### BTR 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

### BPA 0 0 0 0 18 4.69 0 0 0 0 0 0 0 0


### Source Region

### = East Number of values in the ppb range ReceptorArea 2 

### to 5 %

### total 5 

### to 10 

### Oh

### total 10

### to 15 % 

### total 15

### to 20 

### %total 20 

### to 25 % 

### total >25 

### % total Mean ppb #values

### MEM BTR SAN PHX OKC HGB ELP DFW DEN BPA
Source Region 

### = Gulf
Receptor Area HGB SAN PHX OKC MEM ELP DFW DEN BTR BPA
Source Region 

### = IA
Receptor Area SAN PHX OKC MEM HGB ELP DFW DEN BTR Number of values in the ppb range 2 

### to 5 

### % total 5 

### to 10 %

### total 10

### to 15 %

### total 15

### to 20 %

### total 20

### to 25 %

### total >25 %

### total Mean ppb #values 0 0 0 0 315 30.09 129 12.32 30 2.87 15 1.43 3 0 0 0 

### 0 0 24 21.82 0 0 0 0 0 0 0 0 0 0 0 0 

### 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

### 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

### 0 0 0 0 0 0 0 0 

### 0 0 0 0 0 0 0 0 0 

### 0 0 0 0 0 0 0 0 0 0 0 0 0 204 43.87 44 9.46 5 1.08 0 

### 0 0 0 0 0 

### 0 0 155 40.36 66 17.19 11 2.86 2 0.52 0 0



### Number of values in the ppb range 2 

### to 5 % 

### total 5 

### to 10 

### %total 10

### to 15 %

### total 15

### to 20 Oh

### total 20

### to 25 % 

### total >25 %

### total Mean ppb # 

### values 0 0 0 

### 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 0.9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

### 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

### 0 0 0 0 0 0 0 0 0 0 0 0 0 0

### Source Region

### = IC

ReceptorArea SAN PHX OKC MEM HGB ELP DFW DEN BTR BPA
Source Region

### = IL

ReceptorArea SAN PHX OKC MEM HGB ELP DFW DEN BTR B PA
Source Region

### = IN
ReceptorArea SAN PHX OKC MEM Number of values in the ppb range 2 to 5 

### % total 5 to 10 

### %total 10to 15 % 

### total 15to 20 

### %total 20 to 25 

### % total >25 %

### total Mean ppb #values 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Numberof values in the ppb range 2 to 5 % 

### total 5 to 10 %

### total 10to 15 

### % total 15to 20 

### %total 20 to 25 % 

### total >25 % 

### total Mean ppb # values 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 18 12.68 3 2.11 0 0 0 0 0 0 0 0 0 0 228 29.19 72 9.22 46 5.89 3 0.38 0 0 0 0 0 0 235 22.45 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 154 13.13 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 44 9.46 0 0 0 0 0 0 0 0 0 0 0 0 81 21.09 0 0 0 0 0 0 0 0

Numberof values in the ppb range 2 to 5 % 

### total 5 to 10 

### %total 10to 15 % 

### total 15 to 20 

### % total 20 to 25 %

### total >25 

### % total Mean ppb #values 0 0 0 0 2 1.82 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 14 9.86 0 0 0 0 0 0 0 0 0 0 0 0 21627.66 105 13.44 43 5.51 0 0 0 0

### HGB ELP DFW DEN BTR B PA

Source Region 

### = KS
Receptor Area SAN PHX 0KC MEM HGB ELP DFW DEN BTR BPA
Source Region 

### = KY
ReceptorArea SAN PHX OKC MEM HGB ELP DFW DEN BTR BPA Numberofvalues in the ppb range 2 

### to 5 % 

### total 5 

### to 10 % 

### total 10

### to 15 %

### total 15

### to 20 %

### total 20 

### to 25 % 

### total >25 %

### total Mean ppb #values 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 13 9.15 10 7.04 1 0.7 0 0 0 0 0 0 0 0 10 1.28 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 90 7.67 37 3.15 0 0 0 0 0 0 0 0 0 0 4 5.71 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0



### Numberofvalues inthe ppb range 2 

### to 5 %

### total 5 

### to 10 %

### total 10

### to 15 %

### total 15

### to 20 %

### total 20 

### to 25 % 

### total >25 % 

### total Mean ppb #values 0 0 0 0 58 52.73 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 19 13.38 0 0 0 0 0 0 0 0 0 0 0 0 145 18.57 238 30.47 165 21.13 15 1.92 0 0 0 0 0 0 465 44.41 18 1.72 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 276 23.53 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 78 16.77 0 0 0 0 0 0 0 0 0 0 0 0 84 21.88 20 5.21 0 0 0 0 0 0



### Source Region 

### = LA Numberofvalues in the ppb range

### Receptor Area BPA HGB BTR SAN PHX OKC MEM ELP DFW DEN
Source Region

### = MI
Receptor Area SAN PHX OKC MEM HGB ELP DFW DEN BTR BPA
Source Region

### = MN
Receptor Area SAN PHX OKC MEM HGB ELP DFW DEN 2 

### to 5 

### % total 5 

### to 10 

### %total 10

### to 15 %

### total 15

### to 20 

### %total 20 

### to 25 % 

### total >25 %

### total Mean ppb # 

### values 0 0 0 0 3 0.78 40 10.42 62 16.15 59 15.36 76 19 0 0 0 0 40 3.82 258 24.64 400 38.2 278 26.55 57 5 0 0 0 0 0 0 0 0 0 0 1 0.22 5 1 0 0 0 0 27 24.55 58 52.73 12 10.91 13 11.82 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 78 54.93 17 11.97 0 0 0 0 0 0 0 0 0 0 103 13.19 45 5.76 7 0.9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 230 19.61 398 33.93 217 18.5 9 0.77 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0



### Numberof values inthe ppb range 2

### to 5 

### %total 5 

### to 10 % 

### total 10

### to 15 %

### total 15

### to 20 %

### total 20 

### to 25 %

### total >25 % 

### total Mean ppb # 

### values 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 25 3.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0



### Number of values inthe ppb range 2 

### to 5 % 

### total 5 

### to 10 

### % total 10

### to 15 

### %total 15

### to 20 Oh

### total 20

### to 25 

### %total >25 Oh

### total Mean ppb #values 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

### BTR BPA
Source Region

### = MO

ReceptorArea SAN PHX OKC MEM HGB ELP DFW DEN BTR BPA
Source Region

### = MS
Receptor Area MEM SAN PHX OKC HGB ELP DFW DEN BTR B PA Number ofvalues inthe ppb range 2 

### to 5 

### %total 5 

### to 10 % 

### total 10

### to 15 

### % total 15

### to 20 

### % total 20 

### to 25 

### % total >25 % 

### total Mean ppb #values 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 19 13.38 1 0.7 5 3.52 2 1.41 0 0 0 0 0 0 262 33.55 123 15.75 14 1.79 2 0.26 0 0 0 0 0 0 237 22.64 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 234 19.95 14 1.19 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 43 9.25 0 0 0 0 0 0 0 0 0 0 0 0 58 15.1 0 0 0 0 0 0 0 0



### Number of values inthe ppb range 2 

### to 5 % 

### total 5 

### to 10 

### % total 10

### to 15 

### % total 15

### to 20 

### %total 20 

### to 25 

### % total >25 

### % total Mean ppb # 

### values 0 0 0 0 239 30.6 127 16.26 87 11.14 48 6.15 14 1 0 0 0 0 73 66.36 21 19.09 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 65 45.77 18 12.68 0 0 0 0 0 0 0 0 0 0 626 59.79 327 31.23 17 1.62 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 502 42.8 282 24.04 2 0.17 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 116 24.95 236 50.75 92 19.78 8 1.72 0 0 0 0 0 0 151 39.32 186 48.44 28 7.29 0 0 0 0


### Source Region 

### = Mexico Numberof values inthe ppb range Receptor Area 2 

### to 5 % 

### total 5 

### to 10 

### %total 10

### to 15 % 

### total 15

### to 20 

### %total 20 

### to 25 

### % total >25 

### % total Mean ppb #

### values SAN 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

### PHX 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

### OKC 0 0 0 0 0 0 0 0 0 0 0 0 0 0

### MEM HGB ELP DFW DEN BTR BPA
Source Region 

### = ND
Receptor Area SAN PHX OKC MEM HGB ELP DFW DEN BTR BPA
Source Region 

### = NE
Receptor Area SAN PHX OKC MEM HGB ELP DFW DEN BTR BPA Numberof values in the ppb range 2 to 5 % total 5 to 10 %

### total 10to 15 %

### total 15to 20 %

### total 20to 25 % total >25 %total Mean ppb #

### values 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Number of values in the ppb range 2 to 5 % 

### total 5to 10 %

### total 10to 15 %total 15to 20 % total 20to 25 % 

### total >25 %

### total Mean ppb #values 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 3.52 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

### 1 0.09 0 0 0 0 0 0 0 0 0 0 0 0 8 11.43 1 1.43 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Source Region

### = NM

### Receptor Area SAN PHX OKC MEM HGB ELP DFW DEN BTR BPA
Source Region 

### = OK
ReceptorArea DFW OKC SAN PHX MEM HGB ELP DEN BTR BPA
Source Region 

### = SD
ReceptorArea SAN PHX OKC MEM HGB ELP DFW Numberof values in the ppb range 2 

### to 5 %

### total 5 

### to 10 

### %total 10

### to 15 %

### total 15

### to 20 

### %total 20

### to 25 %

### total >25 

### %total Mean ppb # 

### values 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 30 12 17.14 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0



### Number of values inthe ppb range 2 

### to 5 

### %total 5 

### to 10 

### %total 10

### to 15 %

### total 15

### to 20 

### %total 20 

### to 25 

### % total >25 %

### total Mean ppb #values 0 0 0 0 143 12.19 42 3.58 48 4.09 46 3.92 12 1 0 0 0 0 0 0 0 0 0 0 2 1.41 11 7 0 0 0 0 14 12.73 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12 1.54 0 0 0 0 0 0 0 0 0 0 0 0 1 0.1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1.43 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0



### Number of values in the ppb range 2 

### to 5 %

### total 5 

### to 10 %

### total 10

### to 15 

### %total 15

### to 20 %

### total 20 

### to 25 

### %total >25 %

### total Mean ppb #values 0 0 0 0 0 0 0 0 0 0 0 0 0 

### 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

### DEN BTR BPA
Source Region 

### =TN
ReceptorArea MEM SAN PHX OKC HGB ELP DFW DEN BTR BPA
Source Region 

### =TX
Receptor Area BPA OKC HGB DFW SAN PHX MEM ELP DEN BTR
Source Region 

### = WI
Receptor Area SAN PHX Numberof values inthe ppb range 2 

### to 5 %

### total 5 

### to 10 %

### total 10

### to 15 

### %total 15

### to 20 %

### total 20 

### to 25 % 

### total >25 % 

### total Mean ppb #values 0 0 0 0 8 1.02 37 4.74 41 5.25 85 10.88 80 10 0 0 0 0 91 82.73 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 52 36.62 3 2.11 0 0 0 0 0 0 0 0 0 0 556 53.1 87 8.31 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 560 47.74 90 7.67 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 64 13.76 67 14.41 0 0 0 0 0 0 0 0 0 0 203 52.86 36 9.38 0 0 0 0 0 0



### Numberof values inthe ppb range 2 

### to 5 %

### total 5 

### to 10 %

### total 10

### to 15 %

### total 15

### to 20 %

### total 20 

### to 25 %

### total >25 %

### total Mean ppb #values 0 0 0 0 0 0 0 0 12 3.12 38 9.9 42 10 0 0 0 0 10 7.04 15 10.56 21 14.79 34 23.94 20 14 0 0 0 0 0 0 1 0.1 2 0.19 12 1.15 42 4 0 0 0 0 0 0 0 0 0 0 7 0.6 3 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 53 6.79 34 4.35 13 1.66 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 30 42.86 6 8.57 0 0 0 0 0 0 0 0 0 0 58 12.47 15 3.23 29 6.24 3 0.65 0 0



### Number of values in the ppb range 2 

### to 5 %

### total 5 

### to 10 

### %total 10

### to 15 %

### total 15

### to 20 %

### total 20

### to 25 

### %total >25 

### %total Mean ppb #

### values 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

### OKC MEM HGB ELP DFW DEN BTR BPA
Source Region 

### = WY


### Receptor Area SAN PHX 

### OKC MEM HGB ELP DFW DEN BTR BPA Number of values inthe ppb range 2 

### to 5 %

### total 5 

### to 10 %

### total 10

### to 15 %

### total 15

### to 20 

### %total 20

### to 25 %

### total >25 %

### total Mean ppb # 

### values 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 27 38.57 7 10 1 1.43 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0


### Source Region 

### = West Number of values in the ppb range Receptor Area 2 

### to 5 %

### total 5 

### to 10 %

### total 10

### to 15 %

### total 15

### to 20 %

### total 20

### to 25 

### % total >25 

### % total Mean ppb # 

### values SAN 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

### PHX 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

### OKC 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

### MEM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

### HGB 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

### ELP 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

### DFW 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

### DEN 0 0 0 0 27 38.57 11 15.71 19 27.14 2 2.86 0 0 

### BTR 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

### BPA 0 0 0 0 0 0 0 0 0 0 0 0 0 0

### Source Region

### =AL
Receptor Area HGB BTR BPA MEM DFW SAN OKC DEN PHX ELP
Source Region =

### AR
Receptor Area MEM DFW 

### 0KC HGB SAN BPA BTR DEN PHX ELP
Source Region

### = BC

Receptor Area DFW 

### 0KC SAN BTR DEN # 

### values 

### = 1047 # 

### values 

### =465 # 

### values 

### = 384 # 

### values 

### = 781 # 

### values 

### = 1 173 # 

### values 

### = 1 10 # 

### values 

### = 142 # 

### values 

### = 70 # 

### values 

### = 0 # 

### values 

### = 0

# 

### values 

### = 781 # 

### values 

### = 11 73 # 

### values 

### = 142 # 

### values 

### = 1047 # 

### values 

### = 1 10 # 

### values 

### = 384 # 

### values 

### =465 # 

### values 

### = 70 # 

### values 

### = 0 # 

### values 

### = 0 

### Minimum 10th 

### Pctl Median 0 1 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0



### Minimum 10th 

### Pctl Median 0 2 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0



### Minimum 10th 

### Pctl Median #values 

### = 1173 5 6 # 

### values 

### = 142 6 8 # 

### values 

### = 11 0 6 7 # 

### values 

### = 465 4 6 # 

### values 

### = 70 13 16 

### ppb Contribution Mean 90th 

### Pctl Maximum #values 2 3 7 10 1047 6 6 11 23 465 3 4 8 11 384 3 4 9 16 781 3 3 6 8 1173 2 3 7 8 110 2 2 4 5 142 0 0 0 0 70 0 0 0 0 0 0 0 0 0 0



### ppb Contribution Mean 90th 

### Pctl Maximum #values 12 14 31 51 781

4 5 11 22 1173 5 5 11 15 142 3 3 6 10 1047 3 3 6 6 110 1 2 

### 5 9 384 0 1 2 5 465 0 0 0 0 70 0 0 0 0 0 0 0 0 0 0



### ppb Contribution Mean 90th 

### Pctl Maximum # 

### values 11 11 15 18 1173 11 12 15 19 142 12 11 13 14 110 10 10 14 19 465 27 27 43 46 70

### MEM HGB BPA PHX ELP
Source Region

### = CO
Receptor Area DEN DFW HGB MEM BTR BPA OKC SAN PHX ELP
Source Region

### = Canada
Receptor Area DFW HGB MEM OKC SAN BPA BTR DEN PHX ELP
Source Region

### = East # 

### values 

### = 781 4 6 #

### values 

### = 1047 3 6 

### # 

### values 

### = 384 3 5 # 

### values 

### = 0 0 0 # 

### values 

### = 0 0 0

# 

### values 

### = 70 # 

### values 

### = 11 73 # 

### values 

### = 1047 # 

### values 

### = 781 # 

### values =

### 465 # 

### values 

### = 384 # 

### values 

### = 142 #values 

### = 110 # 

### values 

### = 0 # 

### values 

### = 0

# 

### values 

### = 11 73 # 

### values 

### = 1047 # 

### values 

### = 781 # 

### values 

### = 142 # 

### values 

### = 11 0 # 

### values 

### = 384 # 

### values 

### =465 # 

### values 

### = 70 # 

### values 

### = 0 # 

### values 

### = 0 Minimum 10th Pctl Median 22 27

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Minimum 10th Pctl Median 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Receptor Area Minimum 10th Pctl Median ppb Contribution Mean 90th Pctl Maximum # 

### values 45 44 55 65 70

0 0 0 0 1173 0 0 0 0 1047 0 0 0 0 781 0 0 0 0 465 0 0 0 0 384 0 0 0 0 142 0 0 0 0 110 0 0 0 0 0 0 0 0 0 0

ppb Contribution Mean 90th Pctl Maximum 0 1 1 0 1 1 

### 1 1 2 0 1 1 0 1 1 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 # 

### values 3 1173 3 1047 5 781 2 142 2 110 3 384 1 465 0 70 0 0 0 0

ppb Contribution Mean 90th Pctl Maximum # 

### values

### MEM HGB DFW BTR SAN BPA OKC DEN PHX ELP
Source Region

### = Gulf

Receptor Area HGB BPA BTR SAN DFW MEM OKC DEN PHX ELP
Source Region

### = IA
Receptor Area DFW MEM OKC BTR HGB B PA SAN DEN PHX # 

### values 

### = 781 # 

### values 

### = 1047 

### #values = 

### 1173 # 

### values 

### =465 # 

### values 

### = 1 10 # 

### values = 

### 384 # 

### values 

### = 142 # 

### values = 

### 70 # 

### values 

### = 0 # 

### values 

### = 0

# 

### values 

### = 1047 # 

### values 

### = 384 # 

### values 

### =465 # 

### values 

### = 110 # 

### values 

### = 1173 # 

### values 

### = 781 # 

### values 

### = 142 # 

### values 

### = 70 # 

### values 

### = 0 # 

### values 

### = 0



### #values 

### = 1173 # 

### values 

### = 781 # 

### values 

### = 142 # 

### values 

### =465 # 

### values 

### = 1047 # 

### values 

### = 384 # 

### values 

### = 110 # 

### values 

### = 70 # 

### values 

### = 0 

### Minimum 10th 

### Pctl Median 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0



### Minimum 10th 

### Pctl Median 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

### ppb Contribution Mean 90th 

### Pctl Maximum #values 2 3 7 22 1047 2 3 8 17 384 2 3 5 13 465 0 1 3 5 110 0 0 1 1 1173 0 0 1 2 781 0 0 0 1 142 0 0 0 0 70 0 0 0 0 0 0 0 0 0 0



### ppb Contribution Mean 90th 

### Pctl Maximum #values 0 0 1 2 1173 0 0 1 5 781 0 0 1 2 142 0 0 1 1 465 0 0 0 1 1047 0 0 0 1 384 0 0 0 0 110 0 0 

### 0 0 70 0 0 0 0 0

### # 

### values 

### = 0 0 0


### Source Region

### = IC

Receptor Area DFW HGB MEM BTR BPA OKC SAN DEN PHX ELP
Source Region

### = IL
Receptor Area MEM DFW HGB BPA SAN OKC BTR DEN PHX ELP
Source Region

### = IN
Receptor Area MEM HGB DFW BPA # 

### values 

### = 11 73 # 

### values 

### = 1047 # 

### values 

### = 781 # 

### values 

### =465 # 

### values 

### = 384 # 

### values 

### = 142 

### #values= 110 # 

### values 

### = 70 # 

### values 

### = 0 # 

### values 

### = 0

# 

### values 

### = 781 # 

### values 

### = 11 73 # 

### values 

### = 1047 # 

### values 

### = 384 # 

### values 

### = 110 # 

### values 

### = 142 # 

### values 

### =465 # 

### values = 

### 70 # 

### values = 

### 0 # 

### values 

### = 0 

### Minimum 10th 

### Pctl Median 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0



### Minimum 10th 

### Pctl Median 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0



### Minimum 10th 

### Pctl Median # 

### values 

### = 781 0 0 #

### values 

### = 1047 0 0 # 

### values 

### = 11 73 0 0 # 

### values 

### = 384 0 0 

### ppb Contribution Mean 90th 

### Pctl Maximum #values 0 0 0 0 1173 0 0 0 0 1047 0 0 0 0 781 0 0 0 0 465 0 0 0 0 384 0 0 0 0 142 0 0 0 0 110 0 0 0 0 70 0 0 0 0 0 0 0 0 0 0



### ppb Contribution Mean 90th 

### Pctl Maximum #values 2 3 6 16 781 1 1 2 4 1173 1 1 2 3 1047 1 1 3 4 384 1 1 2 2 110 0 1 3 6 142 0 1 2 5 465 0 0 0 0 70 0 0 0 0 0 0 0 0 0 0



### ppb Contribution Mean 90th 

### Pctl Maximum #values 2 3 7 15 781 1 1 2 4 1047 1 1 1 4 1173 1 1 3 4 384

### OKC SAN BTR DEN PHX ELP
Source Region 

### = KS

Receptor Area OKC DFW HGB MEM BPA SAN BTR DEN PHX ELP
Source Region 

### = KY
Receptor Area MEM HGB SAN DFW BPA OKC BTR DEN PHX ELP # 

### values 

### = 142 0 0 

### #values= 110 0 0 # 

### values 

### = 465 0 0 # 

### values 

### = 70 0 0 # 

### values 

### = 0 0 0 # 

### values 

### = 0 0 0

# 

### values 

### = 142 

### #values 

### = 1173 # 

### values 

### = 1047 # 

### values 

### = 781 # 

### values 

### = 384 

### #values 

### = 110 # 

### values 

### = 465 # 

### values 

### = 70 # 

### values 

### = 0 # 

### values 

### = 0 

### Minimum 10th 

### Pctl Median 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0



### Minimum 10th 

### Pctl Median # 

### values 

### = 781 0 1 # 

### values 

### = 1047 0 0 

### #values 

### = 110 0 1 # 

### values 

### = 11 73 0 0 # 

### values 

### = 384 0 0 # 

### values 

### = 142 0 0 # 

### values 

### =465 0 0 # 

### values 

### = 70 0 0 # 

### values 

### = 0 0 0 # 

### values 

### = 0 0 0 

### ppb Contribution Mean 90th Pctl Maximum # 

### values 0 1 3 12 142 0 1 2 8 1173 0 0 1 1 1047 0 0 1 3 781 0 0 

### 1 1 384 0 0 1 

### 1 110 0 0 0 1 465 0 0 1 2 7 0 0 0 0 0 0 0 0 0 0 0



### ppb Contribution Mean 90th Pctl Maximum # 

### values 6 6 12 18 781 2 2 4 6 1047 2 2 3 3 110 1 1 3 4 1173 1 2 4 6 384 1 1 2 4 142 0 1 3 5 465 0 0 0 0 70 0 0 0 0 0 0 0 0 0 0


### Source Region 

### = LA ppb Contribution

### ReceptorArea HGB BTR B

### PA DFW SAN 0

### KC MEM DEN PHX ELP
Source Region

### = MI
ReceptorArea HGB MEM 0

### KC DFW SAN BTR BPA DEN PHX ELP

Source Region 

### = MN
Receptor Area DFW HGB MEM BTR B

### PA OKC SAN DEN # 

### values 

### = 1047 # 

### values 

### =465 # 

### values 

### = 384 # 

### values 

### = 1 173 

### #values= 110 # 

### values 

### = 142 # 

### values 

### = 781 # 

### values 

### = 70 # 

### values 

### = 0 # 

### values 

### = 0

# 

### values 

### = 1047 # 

### values 

### = 781 # 

### values 

### = 142 # 

### values 

### = 1 173 

### #values 

### = 110 # 

### values 

### =465 # 

### values 

### = 384 # 

### values 

### = 70 # 

### values 

### = 0 # 

### values 

### = 0

# 

### values 

### = 11 73 # 

### values 

### = 1047 # 

### values 

### = 781 # 

### values 

### =465 # 

### values 

### = 384 # 

### values = 

### 142 # 

### values 

### = 110 # 

### values 

### = 70 

### Minimum 10th 

### Pctl Median 1 6 17 36

0 9 0 0 3 3 0 0 0 0 0 0 0 0 0 0



### Minimum 10th 

### Pctl Median 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0



### Minimum 10th 

### Pctl Median 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

### Mean 90th 

### Pctl Maximum #values 13 13 19 27 1047 50 51 68 8

### 5 465 21 20 32 40 384

5 6 12 17 1173 6 8 15 18 110 3 3 6 8 142 0 1 4 15 781 0 0 0 0 70 0 0 0 0 0 0 0 0 0 0



### ppb Contribution Mean 90th 

### Pctl Maximum # 

### values 0 0 0 2 1047 0 0 1 4 781 0 0 1 2 142 0 0 0 1 1173 0 0 1 1 110 0 0 0 1 465 0 0 0 1 384 0 0 0 0 70 0 0 0 0 0 0 0 0 0 0



### ppb Contribution Mean 90th 

### Pctl Maximum # 

### values 0 0 0 1 1173 0 0 0 1 1047 0 0 0 2 

### 781 0 0 0 1 465 0 0 0 1 384 0 0 0 1 142 0 0 0 0 110 0 0 0 0 70

### PHX ELP
Source Region 

### = MO

Receptor Area MEM HGB DFW OKC SAN BPA BTR DEN PHX ELP
Source Region 

### = MS

Receptor Area BTR HGB DFW MEM BPA SAN 

### 0KC DEN PHX ELP

Source Region 

### = Mexico
Receptor Area DEN DFW 

### 0KC # values 

### = 0 # values 

### = 0

# values 

### = 781 # values 

### = 1047 # values 

### = 1173 # values 

### = 142 #values 

### = 110 # values 

### = 384 # values 

### =465 # values 

### = 70 # values 

### = 0 # values 

### = 0

# values 

### =465 # values = 

### 1047 # values 

### = 1173 # values 

### = 781 # values = 

### 384 # values = 

### 110 # values 

### = 142 # values 

### = 70 # values = 

### 0 # values 

### = 0

# values 

### = 70 # values 

### = 1173 # values 

### = 142 Minimum 10th Pctl Median 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Minimum 10th Pctl Median 1 3 0 2 0 0 0 0 0 3 1 1 0 0 0 0 0 0 0 0

Minimum 10th Pctl Median 0 0 0 0 0 0 ppb Contribution Mean 90th Pctl Maximum # values 2 3 7 17 781 1 1 3 4 1047 0 1 3 6 1173 0 1 3 16 1 42 1 1 2 2 110 0 1 2 4 384 0 0 2 3 465 0 0 0 0 70 0 0 0 0 0 0 0 0 0 0

ppb Contribution Mean 90th Pctl Maximum # values 7 7 12 17 465 4 5 7 13 1047 4 3 6 10 1173 3 6 15 30 781 5 6 9 12 384 3 4 6 7 110 2 2 5 6 142 0 0 0 0 70 0 0 0 0 0 0 0 0 0 0

ppb Contribution Mean 90th Pctl Maximum #values 1 1 1 2 70 0 0 0 2 1173 0 0 0 1 142

### HGB MEM BTR BPA SAN PHX ELP
Source Region

### = ND

Receptor Area DFW 

### 0KC HGB MEM BTR BPA SAN DEN PHX ELP
Source Region

### = NE
Receptor Area DFW DEN OKC MEM HGB BTR BPA SAN PHX ELP # 

### values 

### = 1047 0 0 # 

### values 

### = 781 0 0 # 

### values 

### =465 0 0 

### #values 

### = 384 0 0 #values= 110 0 0 # 

### values 

### = 0 0 0 # 

### values 

### = 0 0 0

# 

### values 

### = 1 173 # 

### values 

### = 142 # 

### values 

### = 1047 # 

### values 

### = 781 # 

### values =

### 465 # 

### values 

### = 384 #values 

### = 110 # 

### values 

### = 70 # 

### values = 

### 0 # 

### values 

### = 0

#

### values 

### = 11 73 # 

### values 

### = 70 # 

### values 

### = 142 # 

### values 

### = 781 # 

### values 

### = 1047 # 

### values 

### =465 # 

### values 

### = 384 # 

### values 

### = 11 0 # 

### values 

### =0 # 

### values 

### = 0 Minimum 10th Pctl Median 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Minimum 10th Pctl Median 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ppb Contribution Mean 90th Pctl Maximum # 

### values 0 0 0 0 1173 0 0 0 1 142 0 0 0 0 1047 0 0 0 0 781 0 0 0 0 465 0 0 0 0 384 0 0 0 0 110 0 0 0 0 70 0 0 0 0 0 0 0 0 0 0

ppb Contribution Mean 90th Pctl Maximum # 

### values 0 0 0 2 1173 0 1 3 

### 5 70 0 0 0 3 142 0 0 0 1 781 0 0 0 0 1047 0 0 0 0 465 0 0 0 0 384 0 0 0 0 110 0 0 0 0 0 0 0 0 0 0
Source Region

### = NM

### Receptor Area DEN DFW OKC HGB MEM BTR BPA SAN PHX ELP
Source Region

### = OK

Receptor Area OKC DFW SAN HGB MEM BTR DEN BPA PHX ELP
Source Region

### = SD
Receptor Area DFW MEM DEN 

### 0KC HGB BTR BPA # values 

### = 70 

### #values 

### = 1173 

### # values 

### = 142 

### # values 

### = 1047 

### # values 

### = 781 

### # values 

### =465 

### # values 

### = 384 

### #values 

### = 110 

### # values 

### = 0 

### # values 

### = 0



### # values 

### = 142 

### # values 

### = 1 173 

### #values 

### = 110 

### # values 

### = 1047 

### #values 

### = 781 

### # values 

### =465 

### # values = 70 

### # values 

### = 384 

### # values 

### = 0 

### # values 

### = 0 

### Minimum 10th 

### Pctl Median 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0



### Minimum 10th 

### Pctl Median 19 25

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0



### Minimum 10th 

### Pctl Median # values 

### = 1 173 0 0 

### # values 

### = 781 0 0 

### # values 

### = 70 0 0 

### # values 

### = 142 0 0 

### # values 

### = 1047 0 0 

### # values 

### = 465 0 0 

### # values 

### = 384 0 0 

### ppb Contribution Mean 90th 

### Pctl Maximum # values 1 3 5 7 70 0 0 0 0 1173 0 0 0 1 142 0 0 0 0 1047 0 0 0 0 78 1 0 0 0 0 465 0 0 0 0 384 0 0 0 0 110 0 0 0 0 0 0 0 0 0 0



### ppb Contribution Mean 90th 

### Pctl Maximum #values 35 37 50 57 142

1 3 8 26 1173 0 1 2 3 110 0 0 1 2 1047 0 0 1 4 78 1 0 0 0 1 465 0 0 1 2 70 0 0 0 0 384 0 0 0 0 0 0 0 0 0 0



### ppb Contribution Mean 90th 

### Pctl Maximum # values 0 0 0 1 1173 0 0 0 1 781 0 0 1 3 70 0 0 0 1 142 0 0 0 0 1047 0 0 0 0 465 0 0 0 0 384

### SAN PHX ELP
Source Region 

### =TN
ReceptorArea MEM HGB DFW SAN B PA OKC BTR DEN PHX ELP
Source Region 

### =TX
Receptor Area DFW HGB SAN BPA OKC BTR MEM DEN PHX ELP
Source Region 

### = WI

ReceptorArea MEM DFW #values 

### = 110 0 0 # 

### values 

### = 0 0 0 # 

### values 

### = 0 0 0

# 

### values 

### = 781 # 

### values 

### = 1047 # 

### values 

### = 11 73 # 

### values 

### = 110 # 

### values 

### = 384 # 

### values 

### = 142 # 

### values 

### =465 # 

### values 

### = 70 # 

### values 

### = 0 # 

### values 

### = 0

# 

### values 

### = 11 73 # 

### values 

### = 1047 # 

### values 

### = 110 # 

### values 

### = 384 # 

### values 

### = 142 # 

### values 

### =465 # 

### values 

### = 781 # 

### values 

### = 70 # 

### values 

### = 0 # 

### values 

### = 0 

### Minimum 10th 

### Pctl Median 4 14 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0



### Minimum 10th 

### Pctl Median 17 32 10 2 8 26 33 11 18

0 1 0 0 0 0 0 0 0 0 0 0



### Minimum 10th 

### Pctl Median # 

### values 

### = 781 0 0 # 

### values 

### = 1173 0 0 

### ppb Contribution Mean 90th 

### Pctl Maximum # 

### values 31 32 49 76 781

3 3 5 6 1047 2 2 5 9 1173 3 3 4 4 110 2 3 5 9 384 2 2 4 6 142 1 2 6 9 

### 465 

### 0 0 0 0 70 0 0 0 0 0 0 0 0 0 0



### ppbContribution Mean 90th 

### Pctl Maximum # 

### values 47 49 70 105 1173 44 46 65 90 1047 44 43 5 1 63 110 33 34 50 86 384 15 14 27 34 142 0 

### 2 5 17 465 0 1 2 13 781 2 2 5 6 70 0 0 0 0 0 0 0 0 0 0



### ppb Contribution Mean 90th 

### Pctl Maximum # 

### values 0 0 1 2 781 0 0 0 1 1173

### HGB BTR BPA 

### 0KC SAN DEN PHX ELP
Source Region

### =WY
Receptor Area DEN MEM DFW HGB BTR BPA 

### 0KC SAN PHX ELP
Source Region

### = West
Receptor Area DEN 

### 0KC DFW HGB MEM BTR SAN BPA PHX ELP # 

### values 

### = 1047 # 

### values 

### = 465 # 

### values 

### = 384 # 

### values 

### = 142 # 

### values 

### = 1 10 # 

### values 

### = 70 # 

### values 

### = 0 # 

### values 

### = 0

# 

### values 

### = 70 # 

### values 

### = 781 # 

### values = 1173 # 

### values 

### = 1047 # 

### values 

### = 465 # 

### values 

### = 384 # 

### values 

### = 142 # 

### values 

### = 1 10 # 

### values 

### = 0 # 

### values 

### = 0

# 

### values 

### = 70 # 

### values 

### = 142 # 

### values 

### = 1173 # 

### values 

### = 1047 # 

### values 

### = 781 # 

### values 

### =465 

### #values= 110 # 

### values 

### = 384 # 

### values = 0 # 

### values 

### = 0 

### Minimum 10th 

### Pctl Median 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0



### Minimum 10th 

### Pctl Median 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

### ppb Contribution Mean 90th 

### Pctl Maximum # 

### values 2 3 5 11 70 0 0 0 1 781 0 0 0 0 1173 0 0 0 0 1047 0 0 0 0 465 0 0 0 0 384 0 0 0 0 142 0 0 0 0 110 0 0 0 0 0 0 0 0 0 0



### ppb Contribution Mean 90th 

### Pctl Maximum # 

### values 4 7 14 16 70 1 1 1 1 142 0 0 1 2 1173 0 0 1 2 1047 0 0 1 2 781 0 0 1 2 465 0 0 1 1 110 0 0 0 1 384 0 0 0 0 0 0 0 0 0 0

### ReceptorArea 

### = BPA

-. 

### Number

-- 

### of

~

### values in the ppb Zto 5 

### SourceArea

~

~p~ 

### TX

! 

### AL

~ ~ .~ 

### TN 203 3

-. .-

~ 

### IN

~. 

### IL

-

~ ~- - 

### 1 WY

-.

~ ~ 

### 0 WI



### OK

-. 

### NM

- ~.~ ~. 

### 0

- 

### NE 0

.- 

### 0

~ 

### KS i

-~

~ ---- ~- ~. 

### IC

- - .. -- . - . .- 

### 0 1

### A 0

.~ - ~- - 

### Canada

-- -~ 

### 0

~ ~

~ 

### SourceArea

### LA

-

... - 

### i

## I------

~- p~ -- 

### 51 

### East

-.-~ - 

# I BC 

## oi

### NM

. 

### TX

.~ -- 

### NE

-~ -~~ 

## 1

. . - - - -- 

### I

- 

### Mexico

. I

- -- - - ~-

~~~~~ 

### WI

- -. 

### C TN

- . 

### SD

~
-- -.

P- --- 

### OK

.

-~ 

### ND

~ ~ ~ . 

### MS

.~

~ ~-- 

### C 

### MO 

## I

- .-~~ - .~ 

### 0 MN

~ 

### MI

--. - 

### LA

~ ~ 

## Kv-- KS

~- 

### 0

-~ 

### IN

-- -

~~ ------ - 

### IL

~-~ .~ --.-,-. 

### 0 0

. -~ - . ~ --~

~ 

### Gulf I

~ - .-p-.

~ -L 

### East

~- 

### Canada I 0

-- ~- -- ?_.I~- 4

-- 

# I~eceptor&a:~~~L

-- - - -

~--.~-P~-. 

### Numberof values in the ppb range I 

# 4 2.jT--. ~~~-~ L 

### Source Area 

# .-+

~~ 

## ix- 49~~~..

~ 

### MO

~-- ~--~ 

### KY KS

.

-- 

### I 

### IN

~~ - - 

### 1

- -- - ---- -.

~..... P~ 

### 1541 

### 1 

### Canada

.. - - - . -- -. 

# wv

-. --
. -- - ----
. 

### WI

-. - -. .~.

~ .~ 

### West SD

~ ~ 

### NM

.. ~ ~ 

### C

- -- . . . . - - -~ -- 

### ND

- ..~ -- 

### MN

~ ~ -

~--

~~ ~ . 

### MI

~~~ .-

~ -.

~ ~ -- -

~ ~ - 

### Mexico

~-

~ 

### I C

- 

### C I 

### A

- ~~-
. - 

### C

. --

~. -

~ - .-

. 

### ReceptorArea 

### = 

### ELPI-.

... -

~ ~-. . - --

- -

~ -- -~- ~-

~ -.

-- .. - . 

### Source Area

~-~ .~ 

### WI

- . - .

- 

### West

. ..~ . 

### SD OK

~~

~.

-. 

### NE

-- ~.. ._ 

## IN!! ND

---- .. 

### MS

-- - - - 

### MO NA~ ~~ 

### IC

-- - . ~~-~ .~ 

### I 

### A

~~~~--~

~~ . -~ . 

### Gulf East CO Canada

p-- --- - 

### BC

- --

~~ .- -- 

### Receptor

~--

~ 

### Area

~ = 

### HSN 

# I

~-. . ~ ~ 

## umber of values in the DD~ 

### ranae

-- 

### Source Area 

### 2 to 

### 5

-- 

### TX I 8 n "

~ - +-.. 

# 5to-I 

## ~!TO 

## to 

# 15~ 20

- . 

# 2

~,-~. . p- 

### 20 to 

### 25 >25 Mean

--. 

### ppb 0

# ~ I 

### i 12 

### 42 290 

### 4€

--

~ . -- 

### East

~~ -
. ~- -- - -~ 

### MS

~~ -- ~-. .. 

### TN 

# 1

--

- . .-- - .. 

### Gulf

.L
~. -~ 

### AR-- 

# .

-- - .... - 

### ;

-- .. 

### 43 Canada

.. 

### L

.- -. ~- .--~-A~~~ 

### WY I

.. .- - 

### I
.- ... . ~ .. 

### WI C

### West 

# --~l o

# ~

~ .- 

## o SD

- -

~ i----

-- 

### NM

.. 0

- 

### NE

-. -- .. . 0 

### ND 0

- - -- 0 

### MI 0

. 

### KS

-- - 

### IC

-. -- .- 

### I A 0

### I 0 

## co

~ . . ~ 0

~-

~

.~ -- 

### Source Area

.. I~

~ 

### TN

- 

### AR

-- .- - - - -- 14 10

~.

- -~ ~-- - 

### MS

- 

### KY

.- 

### AL 4

- 

### MO 3

. -- -- --.. . - . . 

### 3

- 

### IL 

### 3

. - -~ 

### LA Canada

. ~. 1 

# wv

-

~ ~ .-- - 0

~-~ -. .- 

### NM

- .- 

### NE 0

### i 0

### ND i

. -- . - 4

-------- --
. - --.- 

### C 

## MN

. .- . .- 

### MI

~~

- 

# or Mexico 

### 0

### i C

-~

~ ~~ -- -

~ . L ~~-~ 

# + kalues

### = 142 

# t-.

- 

### Receptor Area 

### = OKC 

# C

-

. -. -- -. -- ----

~ ~ J------ 

### +Number of values 

### inthe oob ranae I I I



### East~~- -- . . -. . . 

### ReceptorArea 

### = SAN

--

~~ ~

~ ..~ . -- -- 

### Source Area

.

-- - 

### TX

-~ .~ .. - --



### East

.~. -- - .- --

~~ . 

### 31

### 1

TN 

### ! 91

- ~. . - . ~~ -- 

### Gulf 24

-- . ~ ~,. 

### Canada

--

~ 

### WI West1 i 1

.-

--

~- 

### AL Gulf TN

-..

-- ---. -- 

### AR

~~ 

### KY

~- . ----



### MO

. -- 

### Canada

- - - - 

### West

- 

### KS

- 

### I A

OK

- 

### 0

### i WI

---- p~ 

### MN

.

- -- .. 

### WY

-

~ ~ -- --- -- 

### ND

-- -- 

### SD NM

- -. - - -- --

~-

. ---- 

### Source Area

### East

~~ ~- 

### MS

--pPP ~ -~ .- 

### AL Gulf

Numberof 

### values in the ppb range

-. - . . 

### BC

-

~~~ ~- 

# --~

~ 

### West 

### 1~ ~ - -- 

### TX

.~

~ 

### NE

~ 

### Mexico

-- 

### KS

-- ~. -- ~. .- -. 

# I 4 SD

~- 

### OK

-~ -- 

### East

~ -- 

### Canada

. --1 

### MO

~ ~-. 

# I--- ND

.. -

~ 

# y---

-- - ~~.

~ 

### Gulf

~- -. - - -- -.--



### +.--
- --- L

-- . . . 

## I

- - -+---i-~~--l 

### ReceptorArea 

### = DFW I 

# 1 !#values=1173,

., - . . .. ii

~ +-.- 

### SourceArea 

## LLX-- oi BC.



### IN 0

Gulf

~-

~ 

### 0 0.30226

-.-L .--- -- 

### I A

~ - ~- -. -- -- 

### 0 0.22428 MI

~

~

~ ~p~~

-- 

### CO

- 

### NM

~ -- -- - .--- ---. - 

### IC

- -- 

# -,

- -- L--- 1- 

### Rece~tor Area 

### = ELP I 

# I--- I I

~~ - 

### Source

~~~~ 

### Area 

### WY

-~ ~- 

### WI

.-

~~p

### TX

-

- - -- . -- - 

### SD

--

~ . ---- - --. 

### OK

~

.- -

~~ -~ 

### ND

~ 

### MS

.~ 

### MO 

### I NA !NA INA

### IMN 

### I NA NA NA NA !NA INANA

~ 

### MI

~ 

## ,MA-- ~ ~-- 

# AM
Mexico

--

~~ 

### NA NA

, . . . --

.

### KS

.

-... -

. . , .-

~ L-~ -~

~ -- -~ . 

# &- ~NA

- - 

# .+-~ N



### A

--~ 

### NA.~A+. Gulf 

# 4:

NA NA

+

--.. 

## -

~<..- 

### Receptor Area 

### = HSN I I 

# LI~ 

# :LTl

..a--- 

## 1~

.-~,- 

### 1 Number of values 

### inthe ppb range

- - - - L~

.. - 

### Source

.-

~ .- 

### Area

~ 

# I=" TX

--~~.-Lp- --

~ - 

### LA

~ 

### BC

~ ~ -. -~ --

~ - p~~ 

### East

- 

### AL

--- --. 

### AR 

### 0'

--

~~ ~~ ~ ~~ ~- b. A-

- - --.i

~ .- 

### MO i 

### 237'

- -- .-. - -- 

# 01 O! 0: 0--1.09681

-. 

### Canada 

### 43; 

# 7 OP;~ 0.55651

.. . - .. 

### 1

~ 

### West I 

### 0

### 1 

# 0t 0 0 

# o',0.3831f+-

.

----

~ 

### 0i 

### MN

- - - 

### WY

. 

### NM

- 

### ND

~ -- 

### SD

~ 

### Mexico

-~

---- --- 

### SourceArea TN

~~ -.--~ -- ----- 

### Canada

L - 

### West

KS

### Receptor

. 

### Area 

### = OKC 

### 1

+.

~~~ ~ -. 

### Number of values 

### inthe

~ 

### ppb

'FTO 

### 5 

### SourceArea

-- - - -- -. - -. -. -. -. - --- 

## 1

-- 

### OK

p~ - -- 

### East

- ~. h - ~- - 

### Canada

~

. - - 

### west

-- - - MI

### SD

~ --

~ 

### NM

p.P~

. 

### Receptor Area

~- 

### = PHX 1 ~-

. .- ~.



### WY

-- 

### WI

-- - 

### West



### NE

~ 

### MS

-. 

### MN 

## NAP-

-- - 

### MI



### IL

~- - 

### IC

-- . - ---- -- 

### Gulf

. -

~ 

### Canada

.~ ~. 

### BC# 

### values 

### = 1

### 10

~

. -- 

### LA MS

.-

~



### Gulf IN

~

... ~ - -- -. 

### MO

- -- -

~

~ ~ ~ 

### KS

~ 

### MI

~ - 

### CO

.~ ---- .-



### Mexico

~ . 

### WI

~ --

~ -~. .- ~-~ 

### I 

### C