Blue Boxes
These devices sampled the air at 15 locations around the Heber Wells building. At
each location, three Blue Boxes were deployed to sample air during the three tests
in turn. The air samples were saved in Tevlar bags and analyzed by a GC for SF6.

Sample Times
Each Blue Box included 10 bags. The first bag started sampling 5 minutes 15 seconds
after the start of the test. A small sample of air was taken every 30 seconds over
a 5-minute period. That is, the first bag sampled from 5:15 to 9:45, the second bag
sampled from 10:15 through 14:45, etc.

Locations
The following is a table of the locations of the Blue Boxes relative to the release
point.
Site	x_meters	y_meters
1	   33.0	 46.4
2	   27.7	 74.1
3	    0.5	 82.7
4	  -33.9	 77.0
5	  -73.2	 78.9
6	 -153.0	115.7
7	 -151.1	 17.2
8	 -106.1	 42.6
9	 -102.3	 16.7
10	  -19.6	-14.8
11	    0.5	-50.2
12	   33.0	-18.2
13	  -70.8	 18.6
14	  -52.6	 58.8
15	   26.8	 14.3

Data files
The data are presented in ASCII files with one row per Blue Box and columns for the
10 bags in the box. The first three columns identify the location number, release
number, and the identity of the box. 

Comments
Some of the Blue Boxes did not operate at all. These boxes are excluded from the
data. Some filled only a few of the 10 bags. The missing data are represented with
"#N/A".