BADLANDS ENVIRONMENTAL CONSULTANTS, INC E. Central Ave. Bismarck, ND (701) AIR MONITORING & SAMPLE ANALYSIS REPORT

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1 BADLANDS ENVIRONMENTAL CONSULTANTS, INC E. Central Ave. Bismarck, ND (701) AIR MONITORING & SAMPLE ANALYSIS REPORT CLIENT: LOCATION: ND DOT ND DOT Admin Building Bismarck, ND BEC #: P Number Date Type Location Flow Rate (L/min.) Sampling Time (Minutes) Volume (Liters) Results (F/cc) 1 10/10/08 Blank Laboratory Fibers/ 2 10/10/08 Blank Field Fibers/ 3 10/10/08 Background 4 th Floor North West End /10/08 Background 4 th Floor West Side /10/08 Background 4 th Floor South West End /10/08 Background 4 th Floor South East End /10/08 Background 4 th Floor East Side /10/08 Background 4 th Floor North East End /13/08 Background 5 th Floor Near Stairwell /13/08 Background 5 th Floor Middle of Penthouse /13/08 Blank Laboratory Fibers/ 12 10/13/08 Background 3 rd Floor South East Corner, in Stairwell 13 10/13/08 Background 3 rd Floor Lobby, North Wall /13/08 Background 3 rd Floor North East Corner, in stairwell 15 10/13/08 Ambient 4 th Floor South West End /13/08 Ambient 4 th Floor North East End /14/08 Ambient 4 th Floor South West End /14/08 Ambient 4 th Floor North East End /14/08 Ambient 4 th Floor Middle of Break Area /14/08 side 4 th Floor Middle of Break Area /14/08 Blank Field Fibers/

2 22 10/14/08 side 4 th Floor North Stairs, by /14/08 side 4 th Floor South Stairs, by *24 10/14/08 Inside Work 4 th Floor South West End Area 25 10/15/08 side 4 th Floor Middle of Break Area /15/08 side 4 th Floor North Stairs, by /15/08 side 4 th Floor South Stairs, by /15/08 Inside Work 4 th Floor North End of Area Containment, Near Workers 29 10/15/08 side 4 th Floor Middle of Break Area /15/08 side 4 th Floor North Stairs, by < /15/08 Blank Laboratory Fibers/ 32 10/15/08 side 4 th Floor South Stairs, by /15/08 Ambient 3 rd Floor South West End of Room /15/08 Ambient 3 rd Floor North End of Lobby /15/08 Ambient 3 rd Floor Across from Room < /15/08 Inside Work 4 th Floor South West End, Near /15/08 Dirty Room 4 th Floor Dirty Room in the < /16/08 Clean Room 4 th Floor Clean Room in the /16/08 side 4 th Floor North Stairs, by < /16/08 side 4 th Floor South Stairs, by < /16/08 Blank Field Fibers/ 42 10/16/08 Ambient 3 rd Floor South West End of Room < /16/08 Ambient 3 rd Floor North End of Lobby /16/08 Ambient 3 rd Floor Across from Room /16/08 Ambient 4 th Floor North East End /16/08 side 47 10/16/08 side 4 th Floor North Stairs, by critical barrier 4 th Floor South Stairs, by critical barrier

3 48 10/16/08 Ambient 3 rd Floor Across from Room /16/08 Ambient 3 rd Floor North End of Lobby < /16/08 Ambient 3 rd Floor Across from Room < /16/08 Blank Laboratory Fibers/ 52 10/16/08 Negative Air 4 th Floor North West End, 7 th /16/08 Inside Work 4 th Floor North East End, Near /20/08 side 4 th Floor North Stairs, by /20/08 side 4 th Floor South Stairs, by /20/08 Ambient 3 rd Floor Across from Room /20/08 Ambient 3 rd Floor North End of Lobby /20/08 Ambient 3 rd Floor Across from Room < /20/08 Negative Air 4 th Floor North West End, 4 th < /20/08 Inside Work 4 th Floor East Side, Near /20/08 Blank Field Fibers/ 62 10/20/08 side 4 th Floor Middle of Break Area /20/08 side 4 th Floor North Stairs, by /20/08 side 4 th Floor South Stairs, by /20/08 Load 4 th Floor 2 nd Stage of the Load < /20/08 Inside Work 4 th Floor East Side, Near /20/08 Ambient 1 st Floor Lobby Area, Near <0.003 Elevators 68 10/21/08 side 4 th Floor North Stairs, by /21/08 side 4 th Floor South Stairs, by /21/08 Ambient 3 rd Floor Across from Room /21/08 Blank Laboratory Fibers/ 72 10/21/08 Ambient 3 rd Floor North End of Lobby /21/08 Ambient 3 rd Floor Across from Room /21/08 Inside Work 4 th Floor North West End, Near

4 75 10/21/08 Dirty Room 4 th Floor Dirty Room in the /21/08 side 4 th Floor Middle of Break Area /21/08 side 4 th Floor North Stairs, by /21/08 side 4 th Floor South Stairs, by /21/08 Ambient 1 st Floor Lobby Area, Main /21/08 Inside Work 4 th Floor East Side, near Load Area 81 10/21/08 Blank Field Fibers/ 82 10/21/08 Load 4 th Floor 1st Stage of the Load /22/08 side 4 th Floor North Stairs, by /22/08 side 4 th Floor South Stairs, by /22/08 Ambient 3 rd Floor Across from Room /22/08 Ambient 3 rd Floor North End of Lobby /22/08 Ambient 3 rd Floor Across from Room /22/08 Inside Work 4 th Floor North West End, Near /22/08 Negative Air 4 th Floor North West End, 4 th < /22/08 side 4 th Floor North Stairs, by /22/08 Blank Laboratory Fibers/ 92 10/22/08 side 4 th Floor South Stairs, by < /22/08 Ambient 1 st Floor Lobby Area, Main /22/08 Inside Work 4 th Floor East Side, near Area workers 95 10/22/08 Load 4 th Floor 1st Stage of the Load < /23/08 side 4 th Floor North Stairs, by /23/08 side 4 th Floor South Stairs, by /23/08 Ambient 3 rd Floor Across from Room < /23/08 Ambient 3 rd Floor North End of Lobby /23/08 Ambient 3 rd Floor Across from Room

5 101 10/23/08 Blank Field Fibers/ /23/08 Inside Work 4 th Floor West Side, Near /23/08 Dirty Room 4 th Floor Dirty Room in the < /23/08 side 4 th Floor Middle of Break Area /23/08 side 4 th Floor North Stairs, by /23/08 side 4 th Floor South Stairs, by /23/08 Ambient 3 rd Floor North End of Lobby *108 10/23/08 Inside Work Area 4 th Floor East Side, near Load 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.

Prepared for: Prepared by: 4005 Port Chicago Highway Concord, California

Prepared for: Prepared by: 4005 Port Chicago Highway Concord, California AIR MONITORING SUMMARY REPORT Time-Critical Removal Action for the Experimental Ship Shielding Range, Parcel E-2 Hunters Point Naval Shipyard San Francisco, California Contract Number N62473-10-D-0807