Erosion and Sediment Pollution Control Program Manual.pdf

MATERIAL
Compost material should be as described in Table 4.2.
COMPOST FOR EROSION CONTROL
When used as a mulch replacement, the application rate (thickness) of the compost should be ½” to ¾”.
Compost is not recommended for slopes steeper than 2H:1V unless a netting or confinement system is
used in conjunction with the compost.
Compost should be placed evenly and should provide 100% soil coverage. No soil should be visible.
On highly unstable soils, use compost in conjunction with appropriate structural measures. Spread the
compost uniformly, and then track, or compact, the compost layer using a bulldozer or other
appropriate equipment. Alternatively, apply compost using a pneumatic, or blower, unit. Project
compost directly at soil, thereby preventing water from moving between the soil-compost interface.
Apply compost layer approximately 3 feet beyond the top of the slope or overlap it into existing
vegetation. Follow by seeding or ornamental planting.
Where planning immediate grass, wildflower, or legume seeding or ornamental planting, use only a
well-composted product that contains no substances toxic to plants. Very coarse composts should be
avoided if the slope is to be landscaped or seeded, as it will make planting and crop establishment
more difficult. Composts containing fibrous particles that range in size produce a more stable mat.
Note: Compost should not be used instead of erosion control blanketing.
363-2134-008 / March 31, 2012 / Page 272