1

TO: Matt Reiss 

FROM: Gopal Sistla 

RE: Application of MATS 

DATE: February 19, 2009 

 As you know, the PM2.5 SIP analysis utilized EPA-MATS program that was 

made available to States for use in their modeling. Subsequently the EPA posted a 

version of MATS on their web site 

(http://www.epa.gov/scram001/modelingapps_mats.htm) which is available to public 

use. This issue of non-availability of the software was one of the questions posed by 

several commentators in response to the public hearing. 

 Another issue that has been asked by the commentators is the air quality levels 

in non-monitored areas of the annual PM2.5 nonattainment area. The EPA provided us 

with a beta version of MATS (2.01) in June 2008 which examines this issue. 

 We applied this version of MATS to the results obtained as part of the SIP 

modeling effort, and in Table 1 is a listing of the counties, the associated grid cell and 

the estimated design value for annual PM2.5. 

 The analysis indicates that there are no grid cells exceeding the annual PM2.5

NAAQS of 15.0μg/m3, which would be the response to the commentators. 

 I do not know what the protocol is but you may want to consider inclusion of the 

analysis in the SIP documentation or indicate that this information is available as an 

attachment. 

 Also, I think it is prudent to send the information to the other two states that are 

part of the NY CMSA. Please let me know, if you need any other information in this 

regard. 

cc: Diana Rivenburgh 
2

2009 Estimated annual PM2.5 DV at unmonitored grids based upon 

 MATS with gradient adjustment option 

StateID 

County 

ID 

County 

Name 

Model 

Column ModelRow

DVF_Annual_PM25_2009

BaseB4 

Percent 

Water 

in Grid 

Cell 

9 1 Fairfield 139 105 11.7 2.6 

9 1 Fairfield 140 106 11.69 0 

9 1 Fairfield 142 107 11.32 18.6 

9 1 Fairfield 140 105 11.31 42.4 

9 1 Fairfield 142 108 11.14 0 

9 1 Fairfield 140 108 11.12 0 

9 1 Fairfield 140 109 11.07 0 

9 1 Fairfield 140 107 10.87 0 

9 1 Fairfield 139 108 10.85 0 

9 1 Fairfield 141 109 10.72 0 

9 1 Fairfield 139 109 10.63 1 

9 1 Fairfield 141 108 10.45 0 

9 1 Fairfield 141 107 10.44 0 

9 1 Fairfield 141 106 10.21 32.9 

9 1 Fairfield 141 105 10.11 95.2 

9 1 Fairfield 142 106 9.64 87.6 

9 9 New Haven 143 108 11.03 25.5 

9 9 New Haven 142 110 10.95 0 

9 9 New Haven 142 109 10.8 0 

9 9 New Haven 144 110 10.8 0 

9 9 New Haven 142 111 10.61 0 

9 9 New Haven 143 110 10.44 0 

9 9 New Haven 144 109 10.41 4.1 

9 9 New Haven 144 108 10.2 65.3 

9 9 New Haven 143 109 10.12 0.2 

9 9 New Haven 145 109 9.61 8.6 

9 9 New Haven 143 107 9.29 49 

9 9 New Haven 145 108 8.36 94.3 

34 3 Bergen 137 102 12.73 4.9 

34 3 Bergen 137 103 11.24 1.2 

34 3 Bergen 137 104 9.85 0 

34 3 Bergen 136 104 9.57 0 

34 13 Essex 136 102 11.71 2 

34 13 Essex 136 101 11.35 0 

34 13 Essex 135 102 10.96 1 

34 13 Essex 135 101 9.58 0 

34 21 Mercer 134 96 11.28 0 

34 21 Mercer 134 97 10.64 0 

34 21 Mercer 133 96 10.38 0 

34 21 Mercer 135 96 10.13 0 

34 21 Mercer 133 97 9.98 0 

34 23 Middlesex 135 99 10.44 0 

34 23 Middlesex 135 97 10.03 0 
3

34 23 Middlesex 136 99 9.86 4.2 

34 23 Middlesex 135 98 9.83 0.3 

34 23 Middlesex 136 98 9.33 2.6 

34 25 Monmouth 135 95 9.99 0 

34 25 Monmouth 136 96 9.3 0 

34 25 Monmouth 137 96 9.17 1.9 

34 25 Monmouth 136 97 9.16 0 

34 25 Monmouth 138 96 9.15 7.7 

34 25 Monmouth 137 99 8.92 51.3 

34 25 Monmouth 137 97 8.52 0.3 

34 25 Monmouth 137 98 8.38 6.4 

34 25 Monmouth 138 97 8.27 4.9 

34 25 Monmouth 138 99 8.26 91.2 

34 25 Monmouth 138 98 7.77 8.9 

34 25 Monmouth 139 97 7.65 95.5 

34 25 Monmouth 139 96 7.42 49 

34 25 Monmouth 139 98 7.17 92.9 

34 27 Morris 134 102 10.35 2 

34 27 Morris 133 102 9.72 1.6 

34 27 Morris 134 101 9.72 0 

34 27 Morris 133 103 9.45 0.3 

34 27 Morris 132 101 9.4 0 

34 27 Morris 135 103 9.34 0 

34 27 Morris 134 103 9.06 0 

34 27 Morris 133 101 8.7 0 

34 31 Passaic 136 103 11.21 0 

34 31 Passaic 135 104 9.73 0 

34 31 Passaic 134 104 9.3 0 

34 35 Somerset 133 99 11.1 0 

34 35 Somerset 134 99 10.83 0 

34 35 Somerset 134 98 10.47 0 

34 35 Somerset 134 100 9.92 0 

34 35 Somerset 133 98 9.88 0 

34 35 Somerset 133 100 9.38 0 

34 39 Union 136 100 11.33 0.1 

34 39 Union 135 100 9.8 0 

36 5 Bronx 138 103 12.37 9.5 

36 47 Kings 138 101 13.1 1.8 

36 47 Kings 138 100 11.4 58.5 

36 59 Nassau 140 102 11.02 0.8 

36 59 Nassau 139 103 10.74 49 

36 59 Nassau 140 103 10.6 17.8 

36 59 Nassau 141 103 10.56 2.4 

36 59 Nassau 140 104 9.94 49 

36 59 Nassau 141 102 9.94 10.5 

36 59 Nassau 140 101 8.09 35.4 

36 59 Nassau 141 101 7.53 76.6 

36 59 Nassau 142 101 6.68 96.6 

36 71 Orange 135 108 9.96 0.2 

36 71 Orange 134 107 9.67 0 
4

36 71 Orange 135 107 9.52 0 

36 71 Orange 136 107 9.5 0.5 

36 71 Orange 133 107 9.43 0 

36 71 Orange 134 108 9.32 0 

36 71 Orange 134 105 9.26 0.7 

36 71 Orange 135 109 9.23 0 

36 71 Orange 134 106 9.15 0 

36 71 Orange 133 106 9.13 0 

36 71 Orange 135 105 9.01 0 

36 71 Orange 135 106 8.92 0 

36 71 Orange 133 108 8.69 0 

36 71 Orange 132 106 8.64 0 

36 71 Orange 132 107 7.91 0 

36 81 Queens 138 102 14.72 12.9 

36 81 Queens 139 102 12.21 14.3 

36 81 Queens 139 101 10.01 15.6 

36 81 Queens 139 100 8.12 87.3 

36 85 Richmond 137 100 10.4 28.8 

36 87 Rockland 137 105 9.75 16.4 

36 87 Rockland 136 106 9.64 2.2 

36 87 Rockland 136 105 9.09 0 

36 103 Suffolk 143 105 10.42 62.3 

36 103 Suffolk 143 104 10.26 2.4 

36 103 Suffolk 142 103 10.15 4.3 

36 103 Suffolk 144 104 10.15 0.4 

36 103 Suffolk 142 104 10.13 9.6 

36 103 Suffolk 142 102 9.94 51 

36 103 Suffolk 141 104 9.56 42.7 

36 103 Suffolk 142 105 9.43 100 

36 103 Suffolk 144 105 9.35 28.3 

36 103 Suffolk 145 105 8.69 14.1 

36 103 Suffolk 143 103 8.68 28.8 

36 103 Suffolk 145 104 8.46 14.1 

36 103 Suffolk 146 105 8.19 8.2 

36 103 Suffolk 144 103 8.1 66.9 

36 103 Suffolk 145 106 8 76.2 

36 103 Suffolk 144 106 7.98 93.3 

36 103 Suffolk 146 106 7.85 49 

36 103 Suffolk 143 102 7.59 88.3 

36 103 Suffolk 147 106 7.59 64.7 

36 103 Suffolk 148 108 7.58 85.3 

36 103 Suffolk 147 107 7.43 49 

36 103 Suffolk 148 107 7.28 60.9 

36 103 Suffolk 146 107 7.21 96.9 

36 103 Suffolk 147 108 7.14 95 

36 103 Suffolk 147 105 6.97 49 

36 103 Suffolk 148 106 6.83 43.4 

36 103 Suffolk 146 104 6.74 74 

36 103 Suffolk 150 110 6.67 97 

36 103 Suffolk 149 108 6.62 91.7 
5

36 103 Suffolk 145 103 6.53 89 

36 103 Suffolk 149 107 6.52 49.2 

36 103 Suffolk 144 102 6.49 99.3 

36 103 Suffolk 150 108 6.13 90.5 

36 103 Suffolk 149 106 5.96 87.4 

36 103 Suffolk 147 104 5.86 95.2 

36 103 Suffolk 148 105 5.84 88.6 

36 103 Suffolk 151 108 5.83 85.4 

36 103 Suffolk 150 107 5.72 93.5 

36 119 Westchester 138 104 11.63 7.2 

36 119 Westchester 138 106 11.42 0 

36 119 Westchester 138 105 11.35 0.4 

36 119 Westchester 139 106 10.97 0 

36 119 Westchester 139 104 10.91 39.8 

36 119 Westchester 138 107 10.88 0 

36 119 Westchester 137 107 10.52 0 

36 119 Westchester 139 107 10.31 0 

36 119 Westchester 137 106 9.62 13.3