## No.2 Nitric Acid Unit - Cherokee Nitrogen Company, Cherokee AL (Subsidiary of LSB Industries, Inc.)

**Date NOX ppm**  **RATA conv lbs NOX/ton acid**  **Acid Production, tpd lbs NOX/day**  **Down Time hrs. 30 Day Rolling Avg**  **lb NOx per Ton Nitric Acid** 1/1/2011176.9290461 0.0152 2.69 561.69 1513 0

- 1/2/2011170.4314526 0.0152 2.60 569.83 1479 0

- 1/3/2011176.9749548 0.0152 2.70 566.73 1527 0

- 1/4/2011182.136166 0.0152 2.77 565.75 1569 0

- 1/5/2011179.2063576 0.0152 2.73 576.60 1574 0

- 1/6/2011174.8127576 0.0152 2.66 566.53 1508 0

- 1/7/2011182.5423486 0.0152 2.78 564.65 1570 0

- 1/8/2011179.0719786 0.0152 2.73 579.79 1581 0

- 1/9/2011170.0014581 0.0152 2.59 585.13 1515 0

- 1/10/2011174.4415865 0.0152 2.66 584.90 1554 0

- 1/11/2011149.4622903 0.0152 2.28 544.95 1240 0

- 1/12/2011132.360813 0.0152 2.02 528.71 1066 0

- 1/13/2011134.8512854 0.0152 2.05 501.72 1030 0

- 1/14/2011134.3065436 0.0152 2.05 500.08 1023 0

- 1/15/2011140.184865 0.0152 2.13 529.75 1131 0

- 1/16/2011140.3684513 0.0152 2.14 499.07 1067 2

- 1/17/201115.54038147 0.0152 0.24 -0.12 0 24

- 1/18/20114.56503816 0.0152 0.07 -0.15 0 24

- 1/19/201193.43962754 0.0152 1.42 287.29 409 10

- 1/20/2011142.3930823 0.0152 2.17 561.00 1216 0

- 1/21/2011137.1700979 0.0152 2.09 569.19 1189 0

- 1/22/2011140.1729563 0.0152 2.13 569.34 1215 0

- 1/23/2011140.3738666 0.0152 2.14 572.72 1224 0

- 1/24/2011144.66728 0.0152 2.20 570.18 1256 0

- 1/25/201163.48430405 0.0152 0.97 107.84 104 20

- 1/26/2011138.9857302 0.0152 2.12 583.04 1234 0

- 1/27/2011143.4909915 0.0152 2.19 571.05 1248 0

- 1/28/2011145.7402872 0.0152 2.22 584.81 1298 0

- 1/29/2011151.212997 0.0152 2.30 578.68 1333 0

- 1/30/2011153.4980602 0.0152 2.34 576.85 1348 0 2.341 1/31/2011157.1933702 0.0152 2.39 573.75 1373 0 2.330 2/1/2011 154.47 0.0152 2.35 571.04 1343 0 2.321 2/2/2011 129.71 0.0152 1.98 580.87 1147 0 2.293 2/3/2011 142.25 0.0152 2.17 592.24 1283 0 2.270 2/4/2011 157.61 0.0152 2.40 592.45 1422 0 2.258 2/5/2011 149.69 0.0152 2.28 583.26 1330 0 2.243 2/6/2011 164.45 0.0152 2.50 580.64 1454 0 2.233 2/7/2011 170.46 0.0152 2.60 582.36 1512 0 2.228 2/8/2011 158.52 0.0152 2.41 590.96 1427 0 2.222 2/9/2011 166.48 0.0152 2.54 586.58 1487 0 2.217 2/10/2011 167.36 0.0152 2.55 575.93 1468 0 2.227 2/11/2011 160.27 0.0152 2.44 571.97 1396 0 2.243 2/12/2011 161.35 0.0152 2.46 588.63 1446 0 2.257 2/13/2011 169.39 0.0152 2.58 585.26 1510 0 2.277 2/14/2011 173.77 0.0152 2.65 581.07 1538 0 2.296 2/15/2011 175.03 0.0152 2.67 588.74 1569 0 2.315 2/16/2011 184.67 0.0152 2.81 573.62 1613 0 2.333 2/17/2011 182.15 0.0149 2.72 571.57 1554 0 2.346 2/18/2011 182.65 0.0149 2.73 565.70 1542 0 2.374 2/19/2011 175.74 0.0149 2.62 576.88 1513 0 2.390 2/20/2011 178.67 0.0149 2.67 562.87 1501 0 2.409 2/21/2011 189.59 0.0149 2.83 557.24 1577 0 2.432 2/22/2011 178.16 0.0149 2.66 582.94 1550 0 2.450 2/23/2011 179.18 0.0149 2.67 587.79 1572 0 2.466 2/24/2011 189.98 0.0149 2.84 557.03 1579 0 2.487 2/25/2011 174.87 0.0149 2.61 577.72 1508 0 2.504 2/26/2011 178.65 0.0149 2.67 579.28 1545 0 2.520 2/27/2011 189.26 0.0149 2.82 548.32 1549 0 2.539 2/28/2011 186.39 0.0149 2.78 555.76 1546 0 2.555 3/1/2011 174.65 0.0149 2.61 584.68 1524 0 2.564 3/2/2011 179.98 0.0149 2.69 574.72 1544 0 2.574 3/3/2011 185.15 0.0149 2.76 573.44 1585 0 2.587 3/4/2011 189.06 0.0149 2.82 572.67 1616 0 2.616 3/5/2011 180.34 0.0149 2.69 572.66 1541 0 2.634 3/6/2011 166.44 0.0149 2.48 587.22 1459 0 2.637 3/7/2011 172.33 0.0149 2.57 585.61 1506 0 2.646 3/8/2011 184.08 0.0149 2.75 581.69 1598 0 2.655 3/9/2011 183.71 0.0149 2.74 572.34 1569 0 2.659 3/10/2011 173.34 0.0149 2.59 577.82 1495 0 2.665 3/11/2011 175.49 0.0149 2.62 584.79 1532 0 2.668

## No.2 Nitric Acid Unit - Cherokee Nitrogen Company, Cherokee AL (Subsidiary of LSB Industries, Inc.)

**Date NOX ppm**  **RATA conv lbs NOX/ton acid**  **Acid Production, tpd lbs NOX/day**  **Down Time hrs. 30 Day Rolling Avg**  **lb NOx per Ton Nitric Acid** 3/12/2011 178.59 0.0149 2.67 570.36 1520 0 2.672 3/13/2011 181.31 0.0149 2.71 566.26 1532 0 2.681 3/14/2011 181.06 0.0149 2.70 571.32 1544 0 2.689 3/15/2011 171.19 0.0149 2.56 575.98 1472 0 2.689 3/16/2011 170.40 0.0149 2.54 579.96 1475 0 2.685 3/17/2011 178.90 0.0149 2.67 568.27 1517 0 2.685 3/18/2011 183.05 0.0149 2.73 568.33 1553 0 2.683 3/19/2011 184.58 0.0149 2.75 582.22 1604 0 2.684 3/20/2011 181.29 0.0149 2.71 580.41 1570 0 2.683 3/21/2011 184.50 0.0149 2.75 578.49 1593 0 2.688 3/22/2011 189.91 0.0149 2.83 575.51 1631 0 2.693 3/23/2011 189.44 0.0149 2.83 571.30 1615 0 2.693 3/24/2011 175.98 0.0149 2.63 578.38 1519 0 2.692 3/25/2011 181.44 0.0149 2.71 576.88 1562 0 2.693 3/26/2011 189.69 0.0149 2.83 567.75 1607 0 2.693 3/27/2011 176.63 0.0149 2.64 570.76 1505 0 2.694 3/28/2011 177.55 0.0149 2.65 564.36 1496 0 2.694 3/29/2011 177.84 0.0149 2.65 568.46 1509 0 2.688 3/30/2011 175.19 0.0149 2.61 575.11 1504 0 2.683 3/31/2011 170.88 0.0149 2.55 577.75 1473 0 2.681 4/1/2011 184.99 0.0149 2.76 557.64 1540 0 2.683 4/2/2011 174.91 0.0149 2.61 558.15 1457 0 2.678 4/3/2011 182.71 0.0149 2.73 562.29 1533 0 2.675 4/4/2011 187.89 0.0149 2.80 538.74 1511 0 2.679 4/5/2011 171.72 0.0149 2.56 575.49 1475 0 2.681 4/6/2011 181.82 0.0149 2.71 567.51 1540 0 2.686 4/7/2011 184.24 0.0149 2.75 557.51 1533 0 2.686 4/8/2011 186.62 0.0149 2.79 556.67 1551 0 2.688 4/9/2011 187.77 0.0149 2.80 555.51 1557 0 2.695 4/10/2011 186.94 0.0149 2.79 554.78 1548 0 2.700 4/11/2011 189.91 0.0149 2.83 542.74 1538 0 2.706 4/12/2011 184.30 0.0149 2.75 544.87 1499 0 2.707 4/13/2011 176.33 0.0149 2.63 541.96 1426 0 2.705 4/14/2011 177.03 0.0149 2.64 545.82 1442 0 2.708 4/15/2011 184.80 0.0149 2.76 555.87 1533 0 2.715 4/16/2011 174.62 0.0149 2.61 567.51 1479 0 2.713 4/17/2011 167.79 0.0149 2.50 567.19 1420 0 2.706 4/18/2011 178.38 0.0149 2.66 556.24 1481 0 2.702 4/19/2011 184.86 0.0149 2.76 540.65 1492 0 2.704 4/20/2011 184.97 0.0149 2.76 545.80 1507 0 2.704 4/21/2011 177.35 0.0149 2.65 567.92 1503 0 2.698 4/22/2011 187.40 0.0149 2.80 554.98 1552 0 2.697 4/23/2011 185.73 0.0149 2.77 551.24 1528 0 2.702 4/24/2011 172.18 0.0149 2.57 466.49 1199 4 2.698 4/25/2011 136.54 0.0149 2.04 322.18 657 9 2.680 4/26/2011 188.22 0.0149 2.81 532.34 1495 0 2.686 4/27/2011 201.92 0.0149 3.01 515.21 1553 0 2.697 4/28/2011 180.11 0.0149 2.69 546.02 1468 0 2.699 4/29/2011 183.83 0.0149 2.74 550.82 1511 0 2.703 4/30/2011 186.05 0.0149 2.78 548.86 1524 0 2.711 5/1/2011 188.17 0.0149 2.81 545.92 1533 0 2.713 5/2/2011 189.03 0.0149 2.82 540.85 1526 0 2.720 5/3/2011 169.45 0.0149 2.53 475.53 1203 3 2.714 5/4/2011 98.66 0.0149 1.47 151.48 223 17 2.699 5/5/2011 191.95 0.0149 2.86 574.34 1645 0 2.710 5/6/2011 189.19 0.0149 2.82 571.55 1614 0 2.714 5/7/2011 193.90 0.0149 2.89 559.23 1618 0 2.719 5/8/2011 195.32 0.0149 2.92 549.24 1601 0 2.724 5/9/2011 195.87 0.0149 2.92 542.89 1587 0 2.728 5/10/2011 227.32 0.0149 3.39 534.65 1814 0 2.748 5/11/2011 194.31 0.0149 2.90 541.47 1570 0 2.750 5/12/2011 194.46 0.0149 2.90 537.99 1561 0 2.756 5/13/2011 256.65 0.0149 3.83 546.47 2093 0 2.797 5/14/2011 243.44 0.0149 3.63 414.72 1507 7 2.825 5/15/2011 176.79 0.0149 2.64 425.70 1123 5 2.822 5/16/2011 187.25 0.0149 2.79 565.70 1581 0 2.829 5/17/2011 190.30 0.0149 2.84 570.93 1622 0 2.841 5/18/2011 192.11 0.0149 2.87 569.38 1633 0 2.849 5/19/2011 193.50 0.0149 2.89 563.43 1627 0 2.853 5/20/2011 194.83 0.0149 2.91 552.66 1607 0 2.859

## No.2 Nitric Acid Unit - Cherokee Nitrogen Company, Cherokee AL (Subsidiary of LSB Industries, Inc.)

**Date NOX ppm**  **RATA conv lbs NOX/ton acid**  **Acid Production, tpd lbs NOX/day**  **Down Time hrs. 30 Day Rolling Avg**  **lb NOx per Ton Nitric Acid** 5/21/2011 195.03 0.0149 2.91 541.63 1577 0 2.868 5/22/2011 195.86 0.0149 2.92 543.04 1587 0 2.873 5/23/2011 192.91 0.0149 2.88 536.46 1545 0 2.877 5/24/2011 191.19 0.0149 2.85 524.68 1497 0 2.885 5/25/2011 195.03 0.0149 2.91 527.69 1536 0 2.903 5/26/2011 184.46 0.0149 2.75 539.34 1485 0 2.901 5/27/2011 185.61 0.0149 2.77 550.28 1524 0 2.893 5/28/2011 193.88 0.0149 2.89 545.79 1579 0 2.900 5/29/2011 193.44 0.0149 2.89 539.25 1557 0 2.905 5/30/2011 195.28 0.0149 2.91 542.11 1580 0 2.910 5/31/2011 196.86 0.0149 2.94 577.06 1695 0 2.915 6/1/2011 196.32 0.0149 2.93 523.72 1535 0 2.918 6/2/2011 192.68 0.0149 2.88 524.46 1508 0 2.929 6/3/2011 194.80 0.0149 2.91 521.71 1517 0 2.942 6/4/2011 194.12 0.0149 2.90 523.55 1517 0 2.943 6/5/2011 192.21 0.0149 2.87 521.98 1497 0 2.945 6/6/2011 195.09 0.0149 2.91 527.73 1537 0 2.945 6/7/2011 191.96 0.0149 2.87 523.07 1499 0 2.944 6/8/2011 195.54 0.0149 2.92 528.50 1542 0 2.944 6/9/2011 193.01 0.0149 2.88 527.68 1520 0 2.926 6/10/2011 193.79 0.0149 2.89 526.24 1522 0 2.926 6/11/2011 192.26 0.0149 2.87 521.20 1496 0 2.925 6/12/2011 192.12 0.0149 2.87 528.39 1515 0 2.892 6/13/2011 192.86 0.0149 2.88 527.54 1518 0 2.873 6/14/2011 194.98 0.0149 2.91 523.31 1523 0 2.880 6/15/2011 193.99 0.0149 2.90 521.02 1509 0 2.883 6/16/2011 194.96 0.0149 2.91 523.26 1523 0 2.886 6/17/2011 195.76 0.0149 2.92 527.86 1542 0 2.888 6/18/2011 191.40 0.0149 2.86 528.48 1510 0 2.887 6/19/2011 196.34 0.0149 2.93 519.27 1522 0 2.887 6/20/2011 191.41 0.0149 2.86 515.92 1474 0 2.886 6/21/2011 194.47 0.0149 2.90 526.94 1529 0 2.885 6/22/2011 194.46 0.0149 2.90 533.07 1547 0 2.886 6/23/2011 197.34 0.0149 2.95 529.19 1559 0 2.889 6/24/2011 193.09 0.0149 2.88 522.51 1506 0 2.888 6/25/2011 194.23 0.0149 2.90 524.33 1520 0 2.893 6/26/2011 191.83 0.0149 2.86 524.62 1502 0 2.896 6/27/2011 195.02 0.0149 2.91 518.18 1508 0 2.896 6/28/2011 193.88 0.0149 2.89 532.46 1541 0 2.897 6/29/2011 190.78 0.0149 2.85 533.60 1519 0 2.894 6/30/2011 195.66 0.0149 2.92 535.06 1562 0 2.894 7/1/2011 193.02 0.0149 2.88 525.79 1515 0 2.892 7/2/2011 194.49 0.0149 2.90 519.85 1509 0 2.893 7/3/2011 194.73 0.0149 2.91 512.69 1490 0 2.893 7/4/2011 195.37 0.0149 2.92 515.97 1505 0 2.894 7/5/2011 194.85 0.0149 2.91 517.52 1505 0 2.895 7/6/2011 194.52 0.0149 2.90 517.51 1502 0 2.895 7/7/2011 194.55 0.0149 2.90 513.38 1491 0 2.896 7/8/2011 194.01 0.0149 2.90 506.58 1467 0 2.895 7/9/2011 193.63 0.0149 2.89 507.10 1466 0 2.895 7/10/2011 200.55 0.0149 2.99 497.32 1489 0 2.899 7/11/2011 197.84 0.0149 2.95 506.27 1495 0 2.901 7/12/2011 195.74 0.0149 2.92 505.00 1475 0 2.903 7/13/2011 195.73 0.0149 2.92 511.75 1495 0 2.905 7/14/2011 197.18 0.0149 2.94 520.94 1533 0 2.906 7/15/2011 192.48 0.0149 2.87 517.65 1487 0 2.905 7/16/2011 187.58 0.0149 2.80 522.15 1462 0 2.901 7/17/2011 191.58 0.0149 2.86 529.62 1514 0 2.899 7/18/2011 194.20 0.0149 2.90 527.45 1529 0 2.901 7/19/2011 197.01 0.0149 2.94 518.31 1524 0 2.901 7/20/2011 222.28 0.0149 3.32 513.28 1703 0 2.916 7/21/2011 203.64 0.0149 3.04 511.83 1556 0 2.921 7/22/2011 196.79 0.0149 2.94 513.49 1508 0 2.922 7/23/2011 197.58 0.0149 2.95 516.24 1522 0 2.922 7/24/2011 196.02 0.0149 2.93 511.63 1497 0 2.923 7/25/2011 197.70 0.0149 2.95 507.90 1499 0 2.925 7/26/2011 196.88 0.0149 2.94 504.00 1481 0 2.928 7/27/2011 196.77 0.0149 2.94 513.14 1507 0 2.928 7/28/2011 196.83 0.0149 2.94 514.28 1511 0 2.930 7/29/2011 197.38 0.0149 2.95 518.31 1527 0 2.933

## No.2 Nitric Acid Unit - Cherokee Nitrogen Company, Cherokee AL (Subsidiary of LSB Industries, Inc.)

**Date NOX ppm**  **RATA conv lbs NOX/ton acid**  **Acid Production, tpd lbs NOX/day**  **Down Time hrs. 30 Day Rolling Avg**  **lb NOx per Ton Nitric Acid** 7/30/2011 197.01 0.0149 2.94 515.70 1516 0 2.934 7/31/2011 197.19 0.0149 2.94 516.89 1521 0 2.936 8/1/2011 195.64 0.0149 2.92 545.15 1592 0 2.937 8/2/2011 195.86 0.0149 2.92 557.30 1629 0 2.937 8/3/2011 194.64 0.0149 2.91 537.87 1563 0 2.937 8/4/2011 151.09 0.0149 2.26 147.16 332 17 2.931 8/5/2011 196.52 0.0149 2.93 519.06 1523 0 2.932 8/6/2011 106.48 0.0149 1.59 153.89 245 18 2.919 8/7/2011 5.37 0.0149 0.08 24 2.920 8/8/2011 9.55 0.0149 0.14 24 2.921 8/9/2011 5.45 0.0149 0.08 24 2.918 8/10/2011 2.94 0.0149 0.04 24 2.917 8/11/2011 3.91 0.0149 0.06 24 2.917 8/12/2011 3.66 0.0149 0.05 24 2.917 8/13/2011 12.50 0.0149 0.19 24 2.915 8/14/2011 4.26 0.0149 0.06 24 2.917 8/15/2011 31.96 0.0149 0.48 24 2.924 8/16/2011 105.80 0.0149 1.58 121.37 192 10 2.910 8/17/2011 171.82 0.0149 2.56 451.70 1158 0 2.895 8/18/2011 182.08 0.0149 2.72 467.46 1270 0 2.884 8/19/2011 192.17 0.0149 2.87 471.90 1353 0 2.860 8/20/2011 190.03 0.0149 2.84 476.99 1353 0 2.849 8/21/2011 192.07 0.0149 2.87 469.58 1346 0 2.845 8/22/2011 192.71 0.0149 2.88 466.82 1343 0 2.841 8/23/2011 188.98 0.0149 2.82 474.90 1340 0 2.836 8/24/2011 193.50 0.0149 2.89 508.37 1468 0 2.832 8/25/2011 193.58 0.0149 2.89 508.85 1470 0 2.830 8/26/2011 191.01 0.0149 2.85 518.94 1479 0 2.825 8/27/2011 194.85 0.0149 2.91 534.42 1554 0 2.824 8/28/2011 195.93 0.0149 2.92 535.46 1566 0 2.823 8/29/2011 191.62 0.0149 2.86 540.41 1546 0 2.818 8/30/2011 190.40 0.0149 2.84 541.57 1539 0 2.813 8/31/2011 187.47 0.0149 2.80 530.81 1485 0 2.806 9/1/2011 189.35 0.0149 2.83 533.98 1509 0 2.800 9/2/2011 213.44 0.0149 3.19 352.86 1124 3 2.809 9/3/2011 196.22 0.0149 2.93 518.35 1518 0 2.823 9/4/2011 196.13 0.0149 2.93 537.10 1572 0 2.823 9/5/2011 188.75 0.0149 2.82 547.67 1543 0 2.842 9/6/2011 192.42 0.0149 2.87 564.09 1620 0 2.843 9/7/2011 191.67 0.0149 2.86 563.01 1611 0 2.844 9/8/2011 191.27 0.0149 2.85 563.72 1609 0 2.845 9/9/2011 185.47 0.0149 2.77 563.29 1559 0 2.841 9/10/2011 185.94 0.0149 2.78 559.98 1554 0 2.838 9/11/2011 151.05 0.0149 2.25 97.71 220 8 2.834 9/12/2011 185.52 0.0149 2.77 539.43 1494 0 2.831 9/13/2011 177.76 0.0149 2.65 551.14 1462 0 2.824 9/14/2011 185.46 0.0149 2.77 548.88 1519 0 2.822 9/15/2011 180.60 0.0149 2.70 563.72 1519 0 2.828 9/16/2011 172.81 0.0149 2.58 571.87 1475 0 2.826 9/17/2011 184.78 0.0149 2.76 561.31 1548 0 2.827 9/18/2011 184.02 0.0149 2.75 557.44 1531 0 2.823 9/19/2011 189.05 0.0149 2.82 555.38 1567 0 2.822 9/20/2011 195.39 0.0149 2.92 551.30 1608 0 2.824 9/21/2011 192.31 0.0149 2.87 543.80 1561 0 2.824 9/22/2011 187.74 0.0149 2.80 553.03 1550 0 2.824 9/23/2011 166.79 0.0149 2.49 562.00 1399 0 2.810 9/24/2011 159.20 0.0149 2.38 558.45 1327 0 2.792 9/25/2011 170.58 0.0149 2.55 538.86 1372 0 2.782 9/26/2011 160.85 0.0149 2.40 539.75 1296 0 2.764 9/27/2011 178.82 0.0149 2.67 542.24 1447 0 2.756 9/28/2011 177.03 0.0149 2.64 546.78 1445 0 2.748 9/29/2011 177.54 0.0149 2.65 545.82 1446 0 2.742 9/30/2011 153.53 0.0149 2.29 554.14 1270 0 2.724 10/1/2011 160.22 0.0149 2.39 560.72 1341 0 2.709 10/2/2011 159.28 0.0149 2.38 566.85 1348 0 2.687 10/3/2011 170.61 0.0149 2.55 569.23 1450 0 2.674 10/4/2011 169.22 0.0149 2.53 564.01 1424 0 2.660 10/5/2011 162.69 0.0149 2.43 552.55 1342 0 2.647 10/6/2011 163.71 0.0149 2.44 556.43 1360 0 2.632 10/7/2011 165.20 0.0149 2.47 549.52 1355 0 2.619

## No.2 Nitric Acid Unit - Cherokee Nitrogen Company, Cherokee AL (Subsidiary of LSB Industries, Inc.)

**Date NOX ppm**  **RATA conv lbs NOX/ton acid**  **Acid Production, tpd lbs NOX/day**  **Down Time hrs. 30 Day Rolling Avg**  **lb NOx per Ton Nitric Acid** 10/8/2011 172.21 0.0149 2.57 555.35 1427 0 2.609 10/9/2011 174.05 0.0149 2.60 553.81 1439 0 2.603 10/10/2011 177.46 0.0149 2.65 549.92 1457 0 2.599 10/11/2011 170.00 0.0149 2.54 523.49 1328 0 2.599 10/12/2011 172.78 0.0149 2.58 531.03 1369 0 2.593 10/13/2011 175.57 0.0149 2.62 540.52 1416 0 2.591 10/14/2011 159.69 0.0149 2.38 548.53 1307 0 2.579 10/15/2011 153.24 0.0149 2.29 554.41 1268 0 2.565 10/16/2011 161.83 0.0149 2.42 554.71 1340 0 2.559 10/17/2011 165.82 0.0149 2.47 541.70 1341 0 2.550 10/18/2011 162.12 0.0149 2.42 541.15 1309 0 2.539 10/19/2011 156.24 0.0149 2.33 546.74 1275 0 2.523 10/20/2011 160.76 0.0149 2.40 546.57 1311 0 2.505 10/21/2011 162.50 0.0149 2.43 556.83 1350 0 2.491 10/22/2011 153.96 0.0149 2.30 558.37 1283 0 2.474 10/23/2011 158.86 0.0149 2.37 554.73 1315 0 2.470 10/24/2011 159.47 0.0149 2.38 554.46 1320 0 2.470 10/25/2011 160.09 0.0149 2.39 555.46 1327 0 2.465 10/26/2011 97.08 0.0149 1.45 9.09 13 24 2.466 10/27/2011 177.32 0.0149 2.65 534.04 1413 0 2.465 10/28/2011 159.28 0.0149 2.38 569.52 1354 0 2.456 10/29/2011 169.26 0.0149 2.53 584.42 1476 0 2.452 10/30/2011 173.97 0.0149 2.60 576.03 1496 0 2.463 10/31/2011 174.12 0.0149 2.60 569.22 1479 0 2.470 11/1/2011 171.85 0.0149 2.56 569.95 1462 0 2.477 11/2/2011 172.07 0.0149 2.57 559.59 1437 0 2.478 11/3/2011 181.61 0.0149 2.71 554.85 1504 0 2.484 11/4/2011 168.12 0.0149 2.51 564.54 1417 0 2.487 11/5/2011 173.71 0.0149 2.59 560.78 1454 0 2.492 11/6/2011 173.35 0.0149 2.59 564.82 1461 0 2.496 11/7/2011 174.55 0.0149 2.61 551.62 1437 0 2.497 11/8/2011 182.97 0.0149 2.73 540.57 1476 0 2.502 11/9/2011 174.05 0.0149 2.60 554.43 1440 0 2.500 11/10/2011 167.12 0.0149 2.49 582.10 1452 0 2.499 11/11/2011 161.99 0.0149 2.42 580.30 1403 0 2.493 11/12/2011 164.70 0.0149 2.46 566.27 1392 0 2.488 11/13/2011 180.16 0.0149 2.69 544.59 1464 0 2.498 11/14/2011 187.11 0.0149 2.79 532.09 1486 0 2.515 11/15/2011 192.76 0.0149 2.88 524.72 1510 0 2.530 11/16/2011 169.26 0.0149 2.53 546.25 1380 0 2.532 11/17/2011 149.12 0.0149 2.23 581.71 1295 0 2.525 11/18/2011 160.23 0.0149 2.39 577.77 1382 0 2.526 11/19/2011 178.40 0.0149 2.66 560.04 1491 0 2.535 11/20/2011 188.79 0.0149 2.82 544.11 1533 0 2.549 11/21/2011 184.09 0.0149 2.75 537.86 1478 0 2.564 11/22/2011 180.29 0.0149 2.69 538.57 1449 0 2.575 11/23/2011 147.37 0.0149 2.20 571.07 1256 0 2.568 11/24/2011 147.11 0.0149 2.20 575.00 1262 0 2.561 11/25/2011 162.19 0.0149 2.42 569.06 1378 0 2.557 11/26/2011 182.81 0.0149 2.73 549.17 1498 0 2.560 11/27/2011 173.54 0.0149 2.59 559.74 1450 0 2.567 11/28/2011 163.87 0.0149 2.45 583.41 1427 0 2.564 11/29/2011 161.83 0.0149 2.42 585.02 1413 0 2.558 11/30/2011 154.55 0.0149 2.31 590.31 1362 0 2.547 12/1/2011 167.76 0.0149 2.50 580.00 1452 0 2.545 12/2/2011 169.25 0.0149 2.53 575.28 1453 0 2.544 12/3/2011 177.73 0.0149 2.65 558.26 1481 0 2.542 12/4/2011 180.52 0.0149 2.69 546.11 1471 0 2.548 12/5/2011 156.04 0.0149 2.33 559.46 1303 0 2.539 12/6/2011 150.31 0.0149 2.24 575.92 1292 0 2.528 12/7/2011 162.90 0.0149 2.43 588.82 1432 0 2.522 12/8/2011 147.88 0.0149 2.21 600.73 1326 0 2.504 12/9/2011 155.79 0.0149 2.33 584.58 1359 0 2.495 12/10/2011 150.92 0.0149 2.25 580.60 1308 0 2.486 12/11/2011 155.47 0.0149 2.32 583.42 1354 0 2.483 12/12/2011 164.21 0.0149 2.45 572.95 1404 0 2.483 12/13/2011 168.17 0.0149 2.51 564.21 1416 0 2.477 12/14/2011 167.05 0.0149 2.49 560.64 1398 0 2.468 12/15/2011 183.32 0.0149 2.74 544.35 1489 0 2.464 12/16/2011 142.71 0.0149 2.13 581.73 1239 0 2.450

## No.2 Nitric Acid Unit - Cherokee Nitrogen Company, Cherokee AL (Subsidiary of LSB Industries, Inc.)

**Date NOX ppm**  **RATA conv lbs NOX/ton acid**  **Acid Production, tpd lbs NOX/day**  **Down Time hrs. 30 Day Rolling Avg**  **lb NOx per Ton Nitric Acid** 12/17/2011 151.84 0.0149 2.27 596.00 1351 0 2.452 12/18/2011 155.69 0.0149 2.32 593.15 1378 0 2.449 12/19/2011 159.75 0.0149 2.38 575.64 1373 0 2.440 12/20/2011 172.15 0.0149 2.57 556.27 1429 0 2.432 12/21/2011 163.04 0.0149 2.43 559.43 1361 0 2.422 12/22/2011 149.21 0.0149 2.23 572.63 1275 0 2.407 12/23/2011 139.65 0.0149 2.08 584.33 1218 0 2.403 12/24/2011 148.12 0.0149 2.21 583.83 1291 0 2.404 12/25/2011 145.62 0.0149 2.17 578.34 1257 0 2.395 12/26/2011 144.22 0.0149 2.15 577.43 1243 0 2.377 12/27/2011 161.94 0.0149 2.42 570.61 1379 0 2.371 12/28/2011 148.89 0.0149 2.22 582.98 1296 0 2.364 12/29/2011 155.14 0.0149 2.32 576.91 1336 0 2.360 12/30/2011 171.14 0.0149 2.55 557.56 1424 0 2.368 12/31/2011 153.01 0.0149 2.28 561.06 1281 0 2.361

Notes: Unit is D.M. Weatherly mono-pressure design with extended absorption tower and no tertiary NOx emissions control device.

Contact: Larry Fitzwater - St. Louis, MO 314-991-2853 ext 245, LFitzwater@LSB-OKC.com

# Date**NOX ppm RATA conv** **lbs NOX/ton acid Acid Production, tpd** **lbs NOX/day D/T hrs.** 

1/1/2011176.9290.0152 2.69 561.69 1513 0 1/2/2011170.43150.0152 2.60 569.83 1479 0 1/3/2011176.9750.0152 2.70 566.73 1527 0 1/4/2011182.13620.0152 2.77 565.75 1569 0 1/5/2011179.20640.0152 2.73 576.60 1574 0 1/6/2011174.81280.0152 2.66 566.53 1508 0 1/7/2011182.54230.0152 2.78 564.65 1570 0 1/8/2011179.0720.0152 2.73 579.79 1581 0 1/9/2011170.00150.0152 2.59 585.13 1515 0 1/10/2011174.44160.0152 2.66 584.90 1554 0 1/11/2011149.46230.0152 2.28 544.95 1240 0 1/12/2011132.36080.0152 2.02 528.71 1066 0 1/13/2011134.85130.0152 2.05 501.72 1030 0 1/14/2011134.30650.0152 2.05 500.08 1023 0 1/15/2011140.18490.0152 2.13 529.75 1131 0 1/16/2011140.36850.0152 2.14 499.07 1067 2 1/17/201115.540380.0152 0.24 -0.12 0 24 1/18/20114.5650380.0152 0.07 -0.15 0 24 1/19/201193.439630.0152 1.42 287.29 409 10 1/20/2011142.39310.0152 2.17 561.00 1216 0 1/21/2011137.17010.0152 2.09 569.19 1189 0 1/22/2011140.1730.0152 2.13 569.34 1215 0 1/23/2011140.37390.0152 2.14 572.72 1224 0 1/24/2011144.66730.0152 2.20 570.18 1256 0 1/25/201163.48430.0152 0.97 107.84 104 20 1/26/2011138.98570.0152 2.12 583.04 1234 0 1/27/2011143.4910.0152 2.19 571.05 1248 0 1/28/2011145.74030.0152 2.22 584.81 1298 0 1/29/2011151.2130.0152 2.30 578.68 1333 0 1/30/2011153.49810.0152 2.34 576.85 1348 0 1/31/2011157.19340.0152 2.39 573.75 1373 0 **January NOX Emission**

# Date**NOX ppm RATA conv** **lbs NOX/ton acid Acid Production, tpd** **lbs NOX/day D/T hrs.** 

2/1/2011154.47 0.0152 2.35 571.04 1343 0 2/2/2011129.71 0.0152 1.98 580.87 1147 0 2/3/2011142.25 0.0152 2.17 592.24 1283 0 2/4/2011157.61 0.0152 2.40 592.45 1422 0 2/5/2011149.69 0.0152 2.28 583.26 1330 0 2/6/2011164.45 0.0152 2.50 580.64 1454 0 2/7/2011170.46 0.0152 2.60 582.36 1512 0 2/8/2011158.52 0.0152 2.41 590.96 1427 0 2/9/2011166.48 0.0152 2.54 586.58 1487 0 2/10/2011167.36 0.0152 2.55 575.93 1468 0 2/11/2011160.27 0.0152 2.44 571.97 1396 0 2/12/2011161.35 0.0152 2.46 588.63 1446 0 2/13/2011169.39 0.0152 2.58 585.26 1510 0 2/14/2011173.77 0.0152 2.65 581.07 1538 0 2/15/2011175.03 0.0152 2.67 588.74 1569 0 2/16/2011184.67 0.0152 2.81 573.62 1613 0 2/17/2011182.15 0.0149 2.72 571.57 1554 0 2/18/2011182.65 0.0149 2.73 565.70 1542 0 2/19/2011175.74 0.0149 2.62 576.88 1513 0 2/20/2011178.67 0.0149 2.67 562.87 1501 0 2/21/2011189.59 0.0149 2.83 557.24 1577 0 2/22/2011178.16 0.0149 2.66 582.94 1550 0 2/23/2011179.18 0.0149 2.67 587.79 1572 0 2/24/2011189.98 0.0149 2.84 557.03 1579 0 2/25/2011174.87 0.0149 2.61 577.72 1508 0 2/26/2011178.65 0.0149 2.67 579.28 1545 0 2/27/2011189.26 0.0149 2.82 548.32 1549 0 2/28/2011186.39 0.0149 2.78 555.76 1546 0 **February NOX Emission**

# Date**NOX ppm RATA conv** **lbs NOX/ton acid Acid Production, tpd** **lbs NOX/day D/T hrs.** 

3/1/2011174.65 0.0149 2.61 584.68 1524 0 3/2/2011179.98 0.0149 2.69 574.72 1544 0 3/3/2011185.15 0.0149 2.76 573.44 1585 0 3/4/2011189.06 0.0149 2.82 572.67 1616 0 3/5/2011180.34 0.0149 2.69 572.66 1541 0 3/6/2011166.44 0.0149 2.48 587.22 1459 0 3/7/2011172.33 0.0149 2.57 585.61 1506 0 3/8/2011184.08 0.0149 2.75 581.69 1598 0 3/9/2011183.71 0.0149 2.74 572.34 1569 0 3/10/2011173.34 0.0149 2.59 577.82 1495 0 3/11/2011175.49 0.0149 2.62 584.79 1532 0 3/12/2011178.59 0.0149 2.67 570.36 1520 0 3/13/2011181.31 0.0149 2.71 566.26 1532 0 3/14/2011181.06 0.0149 2.70 571.32 1544 0 3/15/2011171.19 0.0149 2.56 575.98 1472 0 3/16/2011170.40 0.0149 2.54 579.96 1475 0 3/17/2011178.90 0.0149 2.67 568.27 1517 0 3/18/2011183.05 0.0149 2.73 568.33 1553 0 3/19/2011184.58 0.0149 2.75 582.22 1604 0 3/20/2011181.29 0.0149 2.71 580.41 1570 0 3/21/2011184.50 0.0149 2.75 578.49 1593 0 3/22/2011189.91 0.0149 2.83 575.51 1631 0 3/23/2011189.44 0.0149 2.83 571.30 1615 0 3/24/2011175.98 0.0149 2.63 578.38 1519 0 3/25/2011181.44 0.0149 2.71 576.88 1562 0 3/26/2011189.69 0.0149 2.83 567.75 1607 0 3/27/2011176.63 0.0149 2.64 570.76 1505 0 3/28/2011177.55 0.0149 2.65 564.36 1496 0 3/29/2011177.84 0.0149 2.65 568.46 1509 0 3/30/2011175.19 0.0149 2.61 575.11 1504 0 3/31/2011170.88 0.0149 2.55 577.75 1473 0 **March NOX Emission**

# Date**NOX ppm RATA conv** **lbs NOX/ton acid Acid Production, tpd** **lbs NOX/day D/T hrs.** 

4/1/2011184.99 0.0149 2.76 557.64 1540 0 4/2/2011174.91 0.0149 2.61 558.15 1457 0 4/3/2011182.71 0.0149 2.73 562.29 1533 0 4/4/2011187.89 0.0149 2.80 538.74 1511 0 4/5/2011171.72 0.0149 2.56 575.49 1475 0 4/6/2011181.82 0.0149 2.71 567.51 1540 0 4/7/2011184.24 0.0149 2.75 557.51 1533 0 4/8/2011186.62 0.0149 2.79 556.67 1551 0 4/9/2011187.77 0.0149 2.80 555.51 1557 0 4/10/2011186.94 0.0149 2.79 554.78 1548 0 4/11/2011189.91 0.0149 2.83 542.74 1538 0 4/12/2011184.30 0.0149 2.75 544.87 1499 0 4/13/2011176.33 0.0149 2.63 541.96 1426 0 4/14/2011177.03 0.0149 2.64 545.82 1442 0 4/15/2011184.80 0.0149 2.76 555.87 1533 0 4/16/2011174.62 0.0149 2.61 567.51 1479 0 4/17/2011167.79 0.0149 2.50 567.19 1420 0 4/18/2011178.38 0.0149 2.66 556.24 1481 0 4/19/2011184.86 0.0149 2.76 540.65 1492 0 4/20/2011184.97 0.0149 2.76 545.80 1507 0 4/21/2011177.35 0.0149 2.65 567.92 1503 0 4/22/2011187.40 0.0149 2.80 554.98 1552 0 4/23/2011185.73 0.0149 2.77 551.24 1528 0 4/24/2011172.18 0.0149 2.57 466.49 1199 4 4/25/2011136.54 0.0149 2.04 322.18 657 9 4/26/2011188.22 0.0149 2.81 532.34 1495 0 4/27/2011201.92 0.0149 3.01 515.21 1553 0 4/28/2011180.11 0.0149 2.69 546.02 1468 0 4/29/2011183.83 0.0149 2.74 550.82 1511 0 4/30/2011186.05 0.0149 2.78 548.86 1524 0 **April NOX Emission**

# Date**NOX ppm RATA conv** **lbs NOX/ton acid Acid Production, tpd** **lbs NOX/day D/T hrs.** 

5/1/2011188.17 0.0149 2.81 545.92 1533 0 5/2/2011189.03 0.0149 2.82 540.85 1526 0 5/3/2011169.45 0.0149 2.53 475.53 1203 3 5/4/201198.66 0.0149 1.47 151.48 223 17 5/5/2011191.95 0.0149 2.86 574.34 1645 0 5/6/2011189.19 0.0149 2.82 571.55 1614 0 5/7/2011193.90 0.0149 2.89 559.23 1618 0 5/8/2011195.32 0.0149 2.92 549.24 1601 0 5/9/2011195.87 0.0149 2.92 542.89 1587 0 5/10/2011227.32 0.0149 3.39 534.65 1814 0 5/11/2011194.31 0.0149 2.90 541.47 1570 0 5/12/2011194.46 0.0149 2.90 537.99 1561 0 5/13/2011256.65 0.0149 3.83 546.47 2093 0 5/14/2011243.44 0.0149 3.63 414.72 1507 7 5/15/2011176.79 0.0149 2.64 425.70 1123 5 5/16/2011187.25 0.0149 2.79 565.70 1581 0 5/17/2011190.30 0.0149 2.84 570.93 1622 0 5/18/2011192.11 0.0149 2.87 569.38 1633 0 5/19/2011193.50 0.0149 2.89 563.43 1627 0 5/20/2011194.83 0.0149 2.91 552.66 1607 0 5/21/2011195.03 0.0149 2.91 541.63 1577 0 5/22/2011195.86 0.0149 2.92 543.04 1587 0 5/23/2011192.91 0.0149 2.88 536.46 1545 0 5/24/2011191.19 0.0149 2.85 524.68 1497 0 **May NOX Emission**

5/24/2011191.19 0.0149 2.85 524.68 1497 0 5/25/2011195.03 0.0149 2.91 527.69 1536 0 5/26/2011184.46 0.0149 2.75 539.34 1485 0 5/27/2011185.61 0.0149 2.77 550.28 1524 0 5/28/2011193.88 0.0149 2.89 545.79 1579 0 5/29/2011193.44 0.0149 2.89 539.25 1557 0 5/30/2011195.28 0.0149 2.91 542.11 1580 0 5/31/2011196.86 0.0149 2.94 577.06 1695 0

# Date**NOX ppm RATA conv** **lbs NOX/ton acid Acid Production, tpd** **lbs NOX/day D/T hrs.** 

6/1/2011196.32 0.0149 2.93 523.72 1535 0 6/2/2011192.68 0.0149 2.88 524.46 1508 0 6/3/2011194.80 0.0149 2.91 521.71 1517 0 6/4/2011194.12 0.0149 2.90 523.55 1517 0 6/5/2011192.21 0.0149 2.87 521.98 1497 0 6/6/2011195.09 0.0149 2.91 527.73 1537 0 6/7/2011191.96 0.0149 2.87 523.07 1499 0 6/8/2011195.54 0.0149 2.92 528.50 1542 0 6/9/2011193.01 0.0149 2.88 527.68 1520 0 6/10/2011193.79 0.0149 2.89 526.24 1522 0 6/11/2011192.26 0.0149 2.87 521.20 1496 0 6/12/2011192.12 0.0149 2.87 528.39 1515 0 6/13/2011192.86 0.0149 2.88 527.54 1518 0 6/14/2011194.98 0.0149 2.91 523.31 1523 0 6/15/2011193.99 0.0149 2.90 521.02 1509 0 6/16/2011194.96 0.0149 2.91 523.26 1523 0 6/17/2011195.76 0.0149 2.92 527.86 1542 0 6/18/2011191.40 0.0149 2.86 528.48 1510 0 6/19/2011196.34 0.0149 2.93 519.27 1522 0 6/20/2011191.41 0.0149 2.86 515.92 1474 0 6/21/2011194.47 0.0149 2.90 526.94 1529 0 6/22/2011194.46 0.0149 2.90 533.07 1547 0 6/23/2011197.34 0.0149 2.95 529.19 1559 0 6/24/2011193.09 0.0149 2.88 522.51 1506 0 6/25/2011194.23 0.0149 2.90 524.33 1520 0 6/26/2011191.83 0.0149 2.86 524.62 1502 0 6/27/2011195.02 0.0149 2.91 518.18 1508 0 6/28/2011193.88 0.0149 2.89 532.46 1541 0 6/29/2011190.78 0.0149 2.85 533.60 1519 0 6/30/2011195.66 0.0149 2.92 535.06 1562 0 **June NOX Emission**

# Date **NOX ppm RATA conv** **lbs NOX/ton acid Acid Production, tpd** **lbs NOX/day D/T hrs.** 

7/1/2011193.02 0.0149 2.88 525.79 1515 0 7/2/2011194.49 0.0149 2.90 519.85 1509 0 7/3/2011194.73 0.0149 2.91 512.69 1490 0 7/4/2011195.37 0.0149 2.92 515.97 1505 0 7/5/2011194.85 0.0149 2.91 517.52 1505 0 7/6/2011194.52 0.0149 2.90 517.51 1502 0 7/7/2011194.55 0.0149 2.90 513.38 1491 0 7/8/2011194.01 0.0149 2.90 506.58 1467 0 7/9/2011193.63 0.0149 2.89 507.10 1466 0 7/10/2011200.55 0.0149 2.99 497.32 1489 0 7/11/2011197.84 0.0149 2.95 506.27 1495 0 7/12/2011195.74 0.0149 2.92 505.00 1475 0 7/13/2011195.73 0.0149 2.92 511.75 1495 0 7/14/2011197.18 0.0149 2.94 520.94 1533 0 7/15/2011192.48 0.0149 2.87 517.65 1487 0 7/16/2011187.58 0.0149 2.80 522.15 1462 0 7/17/2011191.58 0.0149 2.86 529.62 1514 0 7/18/2011194.20 0.0149 2.90 527.45 1529 0 7/19/2011197.01 0.0149 2.94 518.31 1524 0 7/20/2011222.28 0.0149 3.32 513.28 1703 0 7/21/2011203.64 0.0149 3.04 511.83 1556 0 7/22/2011196.79 0.0149 2.94 513.49 1508 0 7/23/2011197.58 0.0149 2.95 516.24 1522 0 7/24/2011196.02 0.0149 2.93 511.63 1497 0 7/25/2011197.70 0.0149 2.95 507.90 1499 0 7/26/2011196.88 0.0149 2.94 504.00 1481 0 7/27/2011196.77 0.0149 2.94 513.14 1507 0 7/28/2011196.83 0.0149 2.94 514.28 1511 0 7/29/2011197.38 0.0149 2.95 518.31 1527 0 7/30/2011197.01 0.0149 2.94 515.70 1516 0 7/31/2011197.19 0.0149 2.94 516.89 1521 0 **July NOX Emission**

# Date **NOX ppm RATA conv** **lbs NOX/ton acid Acid Production, tpd** **lbs NOX/day D/T hrs.** 

8/1/2011195.64 0.0149 2.92 545.15 1592 0 8/2/2011195.86 0.0149 2.92 557.30 1629 0 8/3/2011194.64 0.0149 2.91 537.87 1563 0 8/4/2011151.09 0.0149 2.26 147.16 332 17 8/5/2011196.52 0.0149 2.93 519.06 1523 0 8/6/2011106.48 0.0149 1.59 153.89 245 18 8/7/2011 5.37 0.0149 0.08 24 8/8/2011 9.55 0.0149 0.14 24 8/9/2011 5.45 0.0149 0.08 24 8/10/2011 2.94 0.0149 0.04 24 8/11/2011 3.91 0.0149 0.06 24 8/12/2011 3.66 0.0149 0.05 24 8/13/2011 12.50 0.0149 0.19 24 8/14/2011 4.26 0.0149 0.06 24 8/15/2011 31.96 0.0149 0.48 24 8/16/2011105.80 0.0149 1.58 121.37 192 10 8/17/2011171.82 0.0149 2.56 451.70 1158 0 8/18/2011182.08 0.0149 2.72 467.46 1270 0 8/19/2011192.17 0.0149 2.87 471.90 1353 0 8/20/2011190.03 0.0149 2.84 476.99 1353 0 8/21/2011192.07 0.0149 2.87 469.58 1346 0 8/22/2011192.71 0.0149 2.88 466.82 1343 0 8/23/2011188.98 0.0149 2.82 474.90 1340 0 8/24/2011193.50 0.0149 2.89 508.37 1468 0 8/25/2011193.58 0.0149 2.89 508.85 1470 0 8/26/2011191.01 0.0149 2.85 518.94 1479 0 8/27/2011194.85 0.0149 2.91 534.42 1554 0 8/28/2011195.93 0.0149 2.92 535.46 1566 0 8/29/2011191.62 0.0149 2.86 540.41 1546 0 8/30/2011190.40 0.0149 2.84 541.57 1539 0 8/31/2011187.47 0.0149 2.80 530.81 1485 0 **August NOX Emission**

# Date **NOX ppm RATA conv** **lbs NOX/ton acid Acid Production, tpd** **lbs NOX/day D/T hrs.** 

9/1/2011189.35 0.0149 2.83 533.98 1509 0 9/2/2011213.44 0.0149 3.19 352.86 1124 3 9/3/2011196.22 0.0149 2.93 518.35 1518 0 9/4/2011196.13 0.0149 2.93 537.10 1572 0 9/5/2011188.75 0.0149 2.82 547.67 1543 0 9/6/2011192.42 0.0149 2.87 564.09 1620 0 9/7/2011191.67 0.0149 2.86 563.01 1611 0 9/8/2011191.27 0.0149 2.85 563.72 1609 0 9/9/2011185.47 0.0149 2.77 563.29 1559 0 9/10/2011185.94 0.0149 2.78 559.98 1554 0 9/11/2011151.05 0.0149 2.25 97.71 220 8 9/12/2011185.52 0.0149 2.77 539.43 1494 0 9/13/2011177.76 0.0149 2.65 551.14 1462 0 9/14/2011185.46 0.0149 2.77 548.88 1519 0 9/15/2011180.60 0.0149 2.70 563.72 1519 0 9/16/2011172.81 0.0149 2.58 571.87 1475 0 9/17/2011184.78 0.0149 2.76 561.31 1548 0 9/18/2011184.02 0.0149 2.75 557.44 1531 0 9/19/2011189.05 0.0149 2.82 555.38 1567 0 9/20/2011195.39 0.0149 2.92 551.30 1608 0 9/21/2011192.31 0.0149 2.87 543.80 1561 0 9/22/2011187.74 0.0149 2.80 553.03 1550 0 9/23/2011166.79 0.0149 2.49 562.00 1399 0 9/24/2011159.20 0.0149 2.38 558.45 1327 0 9/25/2011170.58 0.0149 2.55 538.86 1372 0 9/26/2011160.85 0.0149 2.40 539.75 1296 0 9/27/2011178.82 0.0149 2.67 542.24 1447 0 9/28/2011177.03 0.0149 2.64 546.78 1445 0 9/29/2011177.54 0.0149 2.65 545.82 1446 0 9/30/2011153.53 0.0149 2.29 554.14 1270 0 **September NOX Emission**

# Date **NOX ppm RATA conv** **lbs NOX/ton acid Acid Production, tpd** **lbs NOX/day D/T hrs.** 

10/1/2011160.22 0.0149 2.39 560.72 1341 0 10/2/2011159.28 0.0149 2.38 566.85 1348 0 10/3/2011170.61 0.0149 2.55 569.23 1450 0 10/4/2011169.22 0.0149 2.53 564.01 1424 0 10/5/2011162.69 0.0149 2.43 552.55 1342 0 10/6/2011163.71 0.0149 2.44 556.43 1360 0 10/7/2011165.20 0.0149 2.47 549.52 1355 0 10/8/2011172.21 0.0149 2.57 555.35 1427 0 10/9/2011174.05 0.0149 2.60 553.81 1439 0 10/10/2011177.46 0.0149 2.65 549.92 1457 0 10/11/2011170.00 0.0149 2.54 523.49 1328 0 10/12/2011172.78 0.0149 2.58 531.03 1369 0 10/13/2011175.57 0.0149 2.62 540.52 1416 0 10/14/2011159.69 0.0149 2.38 548.53 1307 0 10/15/2011153.24 0.0149 2.29 554.41 1268 0 10/16/2011161.83 0.0149 2.42 554.71 1340 0 10/17/2011165.82 0.0149 2.47 541.70 1341 0 10/18/2011162.12 0.0149 2.42 541.15 1309 0 10/19/2011156.24 0.0149 2.33 546.74 1275 0 10/20/2011160.76 0.0149 2.40 546.57 1311 0 10/21/2011162.50 0.0149 2.43 556.83 1350 0 10/22/2011153.96 0.0149 2.30 558.37 1283 0 10/23/2011158.86 0.0149 2.37 554.73 1315 0 10/24/2011159.47 0.0149 2.38 554.46 1320 0 10/25/2011160.09 0.0149 2.39 555.46 1327 0 10/26/2011 97.08 0.0149 1.45 9.09 13 24 10/27/2011177.32 0.0149 2.65 534.04 1413 0 10/28/2011159.28 0.0149 2.38 569.52 1354 0 10/29/2011169.26 0.0149 2.53 584.42 1476 0 10/30/2011173.97 0.0149 2.60 576.03 1496 0 10/31/2011174.12 0.0149 2.60 569.22 1479 0 **October NOX Emission**

# Date **NOX ppm RATA conv** **lbs NOX/ton acid Acid Production, tpd** **lbs NOX/day D/T hrs.** 

11/1/2011171.85 0.0149 2.56 569.95 1462 0 11/2/2011172.07 0.0149 2.57 559.59 1437 0 11/3/2011181.61 0.0149 2.71 554.85 1504 0 11/4/2011168.12 0.0149 2.51 564.54 1417 0 11/5/2011173.71 0.0149 2.59 560.78 1454 0 11/6/2011173.35 0.0149 2.59 564.82 1461 0 11/7/2011174.55 0.0149 2.61 551.62 1437 0 11/8/2011182.97 0.0149 2.73 540.57 1476 0 11/9/2011174.05 0.0149 2.60 554.43 1440 0 11/10/2011167.12 0.0149 2.49 582.10 1452 0 11/11/2011161.99 0.0149 2.42 580.30 1403 0 11/12/2011164.70 0.0149 2.46 566.27 1392 0 11/13/2011180.16 0.0149 2.69 544.59 1464 0 11/14/2011187.11 0.0149 2.79 532.09 1486 0 11/15/2011192.76 0.0149 2.88 524.72 1510 0 11/16/2011169.26 0.0149 2.53 546.25 1380 0 11/17/2011149.12 0.0149 2.23 581.71 1295 0 11/18/2011160.23 0.0149 2.39 577.77 1382 0 11/19/2011178.40 0.0149 2.66 560.04 1491 0 11/20/2011188.79 0.0149 2.82 544.11 1533 0 11/21/2011184.09 0.0149 2.75 537.86 1478 0 11/22/2011180.29 0.0149 2.69 538.57 1449 0 11/23/2011147.37 0.0149 2.20 571.07 1256 0 11/24/2011147.11 0.0149 2.20 575.00 1262 0 11/25/2011162.19 0.0149 2.42 569.06 1378 0 11/26/2011182.81 0.0149 2.73 549.17 1498 0 11/27/2011173.54 0.0149 2.59 559.74 1450 0 11/28/2011163.87 0.0149 2.45 583.41 1427 0 11/29/2011161.83 0.0149 2.42 585.02 1413 0 11/30/2011154.55 0.0149 2.31 590.31 1362 0 **November NOX Emission**

# Date **NOX ppm RATA conv** **lbs NOX/ton acid Acid Production, tpd** **lbs NOX/day D/T hrs.** 

12/1/2011167.76 0.0149 2.50 580.00 1452 0 12/2/2011169.25 0.0149 2.53 575.28 1453 0 12/3/2011177.73 0.0149 2.65 558.26 1481 0 12/4/2011180.52 0.0149 2.69 546.11 1471 0 12/5/2011156.04 0.0149 2.33 559.46 1303 0 12/6/2011150.31 0.0149 2.24 575.92 1292 0 12/7/2011162.90 0.0149 2.43 588.82 1432 0 12/8/2011147.88 0.0149 2.21 600.73 1326 0 12/9/2011155.79 0.0149 2.33 584.58 1359 0 12/10/2011150.92 0.0149 2.25 580.60 1308 0 12/11/2011155.47 0.0149 2.32 583.42 1354 0 12/12/2011164.21 0.0149 2.45 572.95 1404 0 12/13/2011168.17 0.0149 2.51 564.21 1416 0 12/14/2011167.05 0.0149 2.49 560.64 1398 0 12/15/2011183.32 0.0149 2.74 544.35 1489 0 12/16/2011142.71 0.0149 2.13 581.73 1239 0 12/17/2011151.84 0.0149 2.27 596.00 1351 0 12/18/2011155.69 0.0149 2.32 593.15 1378 0 12/19/2011159.75 0.0149 2.38 575.64 1373 0 12/20/2011172.15 0.0149 2.57 556.27 1429 0 12/21/2011163.04 0.0149 2.43 559.43 1361 0 12/22/2011149.21 0.0149 2.23 572.63 1275 0 12/23/2011139.65 0.0149 2.08 584.33 1218 0 12/24/2011148.12 0.0149 2.21 583.83 1291 0 12/25/2011145.62 0.0149 2.17 578.34 1257 0 12/26/2011144.22 0.0149 2.15 577.43 1243 0 12/27/2011161.94 0.0149 2.42 570.61 1379 0 12/28/2011148.89 0.0149 2.22 582.98 1296 0 12/29/2011155.14 0.0149 2.32 576.91 1336 0 12/30/2011171.14 0.0149 2.55 557.56 1424 0 12/31/2011153.01 0.0149 2.28 561.06 1281 0 **December NOX Emission**