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treasure valley road dust study: final report - ResearchGate

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Table A-16. Laboratory Silt Analysis of Summer 2001 Garrity Blvd Sample<br />

Date: 8/28/01<br />

Technician:<br />

KAS<br />

Project:BOISE<br />

Sample<br />

ID:RS628<br />

BOISL067,068,069<br />

Gross weight of sample ___692.3g_________<br />

Sieving:<br />

pan sample diff % diff<br />

Tare 698.5<br />

20 min 773.8 75.3<br />

30 min 775.9 77.4 2.1 2.7<br />

40 min 0 -698.5 -775.9 111.1<br />

Mass Determination<br />

.<br />

Screen<br />

Tare weight (g) Final Weight(g) Sample weight(g)<br />

Lid 216 216 0<br />

1/4 inch 488.9 493.4 4.5<br />

4 mesh 445.9 450.4 4.5<br />

18 mesh 367.8 478.1 110.3<br />

30 mesh 443 549.6 106.6<br />

50 mesh 408.4 520.7 112.3<br />

100 mesh 383.5 443 59.5<br />

200 mesh 379 416.3 37.3<br />

Pan (+400*) 698.5 775.9 77.4<br />

Total Stack 3830.8 4343.4 512.6<br />

Total Stack+sample 4334.4<br />

Silt Calculation<br />

Total stack 4343.4<br />

Tare stack 3830.8<br />

Total sample 512.6<br />

Silt (

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