Construction requirements: Compost blanket application
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| Annual Rainfall/Flow Rate | Total Precipitation & Rainfall Erosivity Index | Application Rate For Vegetated* Compost Surface Mulch | Application Rate For Unvegetated Compost Surface Mulch |
|---|---|---|---|
| Low | 1-25”, 20-90 | ½ - ¾ ” (12.5 mm – 19 mm) | 1” – 1 ½” (25 mm – 37.5mm) |
| Average | 26-50”, 91-200 | ¾ - 1” (19 mm – 25 mm) | 1 ½” – 2” (37 mm – 50 mm) |
| High | 51” and above, 201 and above | 1-2” (25 mm – 50 mm) | 2-4” (50mm – 100mm) |
| *These lower application rates should only be used in conjunction with seeding, and for compost blankets applied during the prescribed planting season for the particular region. | |||