TRI/Environmental:
ASTM D7351
Standard Test Method
For determination of sediment retention device effectiveness in sheet flow applications.
Greensville, SC – October 2007
Test set up
The test involved a simulated 10-year storm event.
• 5000 lbs of water
• 240 lbs of sandy loam soil
• 100 ft 3-1 slope
Mixture pumped down to an installed section of DuraWattle.
| DuraWattle Test Results | Reduction Levels |
|---|---|
| Gravel | 100% |
| Sand | 99.8% |
| Silt | 93.2% |
| Clay | 88.3% |
FINAL VERDICT: 96.6% SEDIMENT RETENTION
ASTM D7351 Testing, Tri Environmental, Oct 2007
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