OKLAHOMA CARBON MONOXIDE
Highest 8 Hour Averages Through 12/31/2008
PPM
Site	2004	2005	2006	2007	2008
	1st          2nd	1st          2nd	1st          2nd	1st          2nd	1st          2nd
Tulsa	2.0     1.8	1.5     1.5	1.7     1.7	1.8     1.6	1.4      1.4
Site 191	1/23     1/22	1/25    1/26	12/6    12/7	2/22   12/5	12/6      12/7
Tulsa				2.18  1.80	1.42       1.26
Site 1127				1/26   1/3	1/27       1/12
OKC	2.4     2.1	2.4     2.0	2.1     1.9	2.3     2.1	Monitor Removed
Site 047	6/26   11/20	6/25    1/20	1/3     1/2	2/22     11/18
OKC					1.1      1.0
Site 033					12/7        3/1
Lawton	1.0      1.0	1.0     0.9	Monitor Removed	Site Closed	Site Closed
Site 647	1/22     4/8	2/4    2/10