| Team Dead Weight |
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| Collection Site |
Cookson Home Room #1 |
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| Collection Town |
West Branch, Iowa |
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| Collection Date/Time |
12/15/2008 4:00 p.m. |
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analyzed |
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| Sample Description |
Control and sample solutions to be
rotated or shaken |
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02/01/29 to |
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2/2/2006 |
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Date |
Time |
Date |
Time |
Date |
Time |
Date |
Time |
Total time rotated |
Total time in solution |
Weight before rotation
(g) |
Weight ater rotation (g) |
Weight |
Total Lead Concentration |
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Bottle # |
Description |
Weight Added |
Rotation Started |
Rotation Stopped |
Weight Removed |
Loss/Gain |
µg/Liter |
Note |
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1-4 |
Distilled H20
Control |
01/02/09 |
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01/02/09 |
14:10 |
01/03/09 |
8:10 |
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18:00 |
N/A |
N/A |
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< 1.0 |
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1-5 |
Rainwater Control |
01/02/09 |
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01/02/09 |
14:10 |
01/03/09 |
8:10 |
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18:00 |
N/A |
N/A |
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2 |
1 |
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1-6 |
Dilute Vinegar Solution Control* |
12/31/08 |
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12/31/08 |
16:00 |
01/01/09 |
10:00 |
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18:00 |
N/A |
N/A |
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22 |
1 |
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1-7 |
Salt/sand control with Rain H20 |
12/31/08 |
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12/31/08 |
16:00 |
01/01/09 |
10:00 |
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18:00 |
N/A |
N/A |
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6 |
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1-8 |
Rainwater with Lead wheel weight (w.w.) |
01/02/09 |
14:07 |
01/02/09 |
14:10 |
01/03/09 |
8:10 |
01/03/09 |
8:23 |
18:00 |
18:16 |
14.3051 |
14.3019 |
-0.0032 |
189 |
1 |
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1-9 |
Distilled H20
with Lead w.w. |
01/02/09 |
14:07 |
01/02/09 |
14:10 |
01/03/09 |
8:10 |
01/03/09 |
8:24 |
18:00 |
18:17 |
14.3688 |
14.3668 |
-0.002 |
856 |
1 |
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1-10 |
Dilute Vinegar Solution with Lead w.w. |
01/02/09 |
14:07 |
01/02/09 |
14:10 |
01/03/09 |
8:10 |
01/03/09 |
8:25 |
18:00 |
18:18 |
14.3231 |
14.0159 |
-0.3072 |
385,000[1] |
1 |
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1-11 |
Distilled H20
with Steel w.w. |
12/31/08 |
15:57 |
12/31/08 |
16:00 |
01/01/09 |
10:00 |
01/01/09 |
10:33 |
18:00 |
18:36 |
6.9484 |
6.9469 |
-0.0015 |
50 |
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1-13 |
Dilute Vinegar Solution with Steel w.w. |
12/31/08 |
15:57 |
12/31/08 |
16:00 |
01/01/09 |
10:00 |
01/01/09 |
10:35 |
18:00 |
18:38 |
6.8802 |
6.8578 |
-0.0224 |
37 |
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1-14 |
Rainwater with Steel w.w. |
12/31/08 |
15:57 |
12/31/08 |
16:00 |
01/01/09 |
10:00 |
01/01/09 |
10:35 |
18:00 |
18:38 |
7.0089 |
7.0077 |
-0.0012 |
4 |
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1-18 |
Salt/sand /Rain H20 with Lead w.w. |
01/02/09 |
14:07 |
01/02/09 |
14:10 |
01/03/09 |
8:10 |
01/03/09 |
8:27 |
18:00 |
18:20 |
14.3617 |
14.149 |
-0.2127 |
2190 |
1, 3 |
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1-982 |
Salt/sand /Rain H20 with Steel w.w.[2] |
12/31/08 |
15:57 |
12/31/08 |
16:00 |
01/01/09 |
10:00 |
01/01/09 |
10:40 |
18:00 |
18:43 |
7.0428 |
7.0177 |
-0.0251 |
3 |
2 |
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*Dilute
vinegar solution made with 56.3 mL white table vinegar and 443.3 ml distilled
H20 - pH = 2.9-3 |
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Note 1 |
Slight leakage from bottle during rotation |
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Note 2 |
Due
to turbity, solution decanted into another clean bottle in order to locate
and remove weight |
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Note 3 |
Due to turbity, weight located and
removed with steel forceps |
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