BADLANDS ENVIRONMENTAL CONSULTANTS, INC. 1006 E. Central Ave. Bismarck, ND 58501 (701) 223-7335 AIR MONITORING & SAMPLE ANALYSIS REPORT CLIENT: LOCATION: ND DOT ND DOT Admin Building Bismarck, ND BEC #: P08-0403 Number Date Type Location Flow Rate (L/min.) Sampling Time (Minutes) Volume (Liters) Results (F/cc) 1 10/10/08 Blank Laboratory --- --- --- 0 Fibers/ 2 10/10/08 Blank Field --- --- --- 0 Fibers/ 3 10/10/08 Background 4 th Floor North West End 10.0 149 1490.0 0.010 4 10/10/08 Background 4 th Floor West Side 10.0 149 1490.0 0.011 5 10/10/08 Background 4 th Floor South West End 10.0 149 1490.0 0.009 6 10/10/08 Background 4 th Floor South East End 10.0 149 1490.0 0.007 7 10/10/08 Background 4 th Floor East Side 10.0 149 1490.0 0.005 8 10/10/08 Background 4 th Floor North East End 10.0 149 1490.0 0.011 9 10/13/08 Background 5 th Floor Near Stairwell 10.0 149 1490.0 0.005 10 10/13/08 Background 5 th Floor Middle of Penthouse 10.0 147 1470.0 0.010 11 10/13/08 Blank Laboratory --- --- --- 0 Fibers/ 12 10/13/08 Background 3 rd Floor South East Corner, in 10.0 157 1570.0 0.004 Stairwell 13 10/13/08 Background 3 rd Floor Lobby, North Wall 10.0 155 1550.0 0.007 14 10/13/08 Background 3 rd Floor North East Corner, in 10.0 151 1510.0 0.006 stairwell 15 10/13/08 Ambient 4 th Floor South West End 6.0 245 1470.0 0.010 16 10/13/08 Ambient 4 th Floor North East End 6.0 244 1464.0 0.009 17 10/14/08 Ambient 4 th Floor South West End 6.0 250 1500.0 0.007 18 10/14/08 Ambient 4 th Floor North East End 6.0 250 1500.0 0.005 19 10/14/08 Ambient 4 th Floor Middle of Break Area 6.0 235 1410.0 0.009 20 10/14/08 side 4 th Floor Middle of Break Area 6.0 245 1470.0 0.005 21 10/14/08 Blank Field --- --- --- 0 Fibers/
22 10/14/08 side 4 th Floor North Stairs, by 6.0 227 1362.0 0.004 23 10/14/08 side 4 th Floor South Stairs, by 6.0 227 1362.0 0.007 *24 10/14/08 Inside Work 4 th Floor South West End 2.5 184 460.0 0.096 Area 25 10/15/08 side 4 th Floor Middle of Break Area 6.0 231 1386.0 0.003 26 10/15/08 side 4 th Floor North Stairs, by 6.0 221 1326.0 0.003 27 10/15/08 side 4 th Floor South Stairs, by 6.0 226 1356.0 0.003 28 10/15/08 Inside Work 4 th Floor North End of 2.5 228 570.0 0.023 Area Containment, Near Workers 29 10/15/08 side 4 th Floor Middle of Break Area 6.0 278 1668.0 0.003 30 10/15/08 side 4 th Floor North Stairs, by 6.0 248 1488.0 <0.002 31 10/15/08 Blank Laboratory --- --- --- 0 Fibers/ 32 10/15/08 side 4 th Floor South Stairs, by 6.0 251 1506.0 0.003 33 10/15/08 Ambient 3 rd Floor South West End of Room 6.0 222 1332.0 0.004 34 10/15/08 Ambient 3 rd Floor North End of Lobby 6.0 256 1536.0 0.003 35 10/15/08 Ambient 3 rd Floor Across from Room 6.0 256 1536.0 <0.002 36 10/15/08 Inside Work 4 th Floor South West End, Near 2.4 275 660.0 0.021 37 10/15/08 Dirty Room 4 th Floor Dirty Room in the 2.5 173 432.5 <0.007 38 10/16/08 Clean Room 4 th Floor Clean Room in the 2.5 236 590.0 0.006 39 10/16/08 side 4 th Floor North Stairs, by 6.0 230 1380.0 <0.002 40 10/16/08 side 4 th Floor South Stairs, by 6.0 227 1362.0 <0.002 41 10/16/08 Blank Field --- --- --- 1 Fibers/ 42 10/16/08 Ambient 3 rd Floor South West End of Room 6.0 225 1350.0 <0.002 43 10/16/08 Ambient 3 rd Floor North End of Lobby 6.0 228 1368.0 0.004 44 10/16/08 Ambient 3 rd Floor Across from Room 6.0 226 1356.0 0.003 45 10/16/08 Ambient 4 th Floor North East End 2.5 220 550.0 0.043 46 10/16/08 side 47 10/16/08 side 4 th Floor North Stairs, by critical barrier 4 th Floor South Stairs, by critical barrier 6.0 225 1350.0 0.004 6.0 228 1368.0 0.003
48 10/16/08 Ambient 3 rd Floor Across from Room 6.0 256 1536.0 0.002 49 10/16/08 Ambient 3 rd Floor North End of Lobby 6.0 261 1566.0 <0.002 50 10/16/08 Ambient 3 rd Floor Across from Room 6.0 262 1572.0 <0.002 51 10/16/08 Blank Laboratory --- --- --- 0 Fibers/ 52 10/16/08 Negative Air 4 th Floor North West End, 7 th 2.5 239 597.5 0.005 53 10/16/08 Inside Work 4 th Floor North East End, Near 2.5 269 672.5 0.018 54 10/20/08 side 4 th Floor North Stairs, by 6.0 250 1500.0 0.005 55 10/20/08 side 4 th Floor South Stairs, by 6.0 249 1494.0 0.006 56 10/20/08 Ambient 3 rd Floor Across from Room 6.0 249 1494.0 0.003 57 10/20/08 Ambient 3 rd Floor North End of Lobby 6.0 251 1506.0 0.004 58 10/20/08 Ambient 3 rd Floor Across from Room 6.0 249 1494.0 <0.002 59 10/20/08 Negative Air 4 th Floor North West End, 4 th 2.5 246 615.0 <0.005 60 10/20/08 Inside Work 4 th Floor East Side, Near 2.5 246 615.0 0.022 61 10/20/08 Blank Field --- --- --- 0 Fibers/ 62 10/20/08 side 4 th Floor Middle of Break Area 6.0 274 1644.0 0.004 63 10/20/08 side 4 th Floor North Stairs, by 6.0 279 1674.0 0.002 64 10/20/08 side 4 th Floor South Stairs, by 6.0 276 1656.0 0.003 65 10/20/08 Load 4 th Floor 2 nd Stage of the Load 2.5 197 492.5 <0.006 66 10/20/08 Inside Work 4 th Floor East Side, Near 2.5 278 528.2 0.006 67 10/20/08 Ambient 1 st Floor Lobby Area, Near 6.0 185 1110.0 <0.003 Elevators 68 10/21/08 side 4 th Floor North Stairs, by 6.0 221 1326.0 0.005 69 10/21/08 side 4 th Floor South Stairs, by 6.0 221 1326.0 0.003 70 10/21/08 Ambient 3 rd Floor Across from Room 6.0 224 1344.0 0.004 71 10/21/08 Blank Laboratory --- --- --- 0 Fibers/ 72 10/21/08 Ambient 3 rd Floor North End of Lobby 6.0 226 1356.0 0.003 73 10/21/08 Ambient 3 rd Floor Across from Room 6.0 224 1344.0 0.004 74 10/21/08 Inside Work 4 th Floor North West End, Near 2.5 234 585.0 0.009
75 10/21/08 Dirty Room 4 th Floor Dirty Room in the 2.5 230 575.0 0.006 76 10/21/08 side 4 th Floor Middle of Break Area 6.0 272 1632.0 0.003 77 10/21/08 side 4 th Floor North Stairs, by 6.0 266 1596.0 0.002 78 10/21/08 side 4 th Floor South Stairs, by 6.0 267 1602.0 0.005 79 10/21/08 Ambient 1 st Floor Lobby Area, Main 6.0 241 1446.0 0.003 80 10/21/08 Inside Work 4 th Floor East Side, near Load 2.5 282 705.0 0.025 Area 81 10/21/08 Blank Field --- --- --- 0 Fibers/ 82 10/21/08 Load 4 th Floor 1st Stage of the Load 2.5 250 625.0 0.007 83 10/22/08 side 4 th Floor North Stairs, by 6.0 239 1434.0 0.003 84 10/22/08 side 4 th Floor South Stairs, by 6.0 237 1422.0 0.004 85 10/22/08 Ambient 3 rd Floor Across from Room 6.0 239 1434.0 0.005 86 10/22/08 Ambient 3 rd Floor North End of Lobby 6.0 242 1452.0 0.004 87 10/22/08 Ambient 3 rd Floor Across from Room 6.0 239 1434.0 0.008 88 10/22/08 Inside Work 4 th Floor North West End, Near 2.5 249 622.5 0.083 89 10/22/08 Negative Air 4 th Floor North West End, 4 th 2.5 251 627.5 <0.005 90 10/22/08 side 4 th Floor North Stairs, by 6.0 270 1620.0 0.006 91 10/22/08 Blank Laboratory --- --- --- 0 Fibers/ 92 10/22/08 side 4 th Floor South Stairs, by 6.0 270 1620.0 <0.002 93 10/22/08 Ambient 1 st Floor Lobby Area, Main 6.0 204 1224.0 0.002 94 10/22/08 Inside Work 4 th Floor East Side, near 2.5 285 712.5 0.030 Area workers 95 10/22/08 Load 4 th Floor 1st Stage of the Load 2.5 215 537.5 <0.006 96 10/23/08 side 4 th Floor North Stairs, by 6.0 239 1434.0 0.004 97 10/23/08 side 4 th Floor South Stairs, by 6.0 239 1434.0 0.004 98 10/23/08 Ambient 3 rd Floor Across from Room 341 6.0 244 1464.0 <0.002 99 10/23/08 Ambient 3 rd Floor North End of Lobby 6.0 240 1440.0 0.005 100 10/23/08 Ambient 3 rd Floor Across from Room 332 6.0 244 1464.0 0.003
101 10/23/08 Blank Field --- --- --- 0 Fibers/ 102 10/23/08 Inside Work 4 th Floor West Side, Near 2.5 256 640.0 0.165 103 10/23/08 Dirty Room 4 th Floor Dirty Room in the 2.5 253 632.5 <0.005 104 10/23/08 side 4 th Floor Middle of Break Area 6.0 267 1602.0 0.003 105 10/23/08 side 4 th Floor North Stairs, by 6.0 280 1680.0 0.003 106 10/23/08 side 4 th Floor South Stairs, by 6.0 280 1680.0 0.002 107 10/23/08 Ambient 3 rd Floor North End of Lobby 6.0 280 1680.0 0.004 *108 10/23/08 Inside Work Area 4 th Floor East Side, near Load 2.5 240 600.0 Particulate Overload Comments: < = The fiber concentration is reported as less than its Limit of Detection (LOD) based on sample air volume. #24 had a lot of dust and particulates on the sample #108 had a lot of dust from the crew sweeping the work area, making it impossible to read.