Compost Socks

Applications:

A-1 compost socks can be used in a variety of applications on all types of construction sites including:

• Sediment control • Perimeter protection

• Check dams • Inlet protection • Sediment traps

• Permanent slope interrupts • Lot wraps

• Concrete washout  • Temporary slope interrupts

One major advantage to using A-1 filter socks in place of other sediment control BMPs is that trenching is often not required. Because the filter socks are heavier in weight, they will achieve greater contact with the underlying soil. This allows the filter socks to be used in areas where trenching is not possible due to soil conditions or on impervious surfaces such as concrete and asphalt. Compost socks are used to control soil erosion and to filter surface runoff leaving a construction site. The binding is photodegradable plastic netting allowing the whole structure to decompose over time. Compost socks are placed perpendicular to newly constructed or disturbed slopes. They are useful to break up slope length and thus reduce the potential for erosion on slopes susceptible to sheet and rill erosion.

Materials:

Compost used in socks needs to be stable and mature. It should consist of both small and larger particle sizes, which will affect the filtration performance and longevity. Coarser grade compost is better for filtration and is less likely to be disturbed by rainfall or runoff. Finer grade compost is better for vegetation establishment. For socks, the ratio of coarse to fine grades should be 1:1. No compost should have particle sizes larger than 3 inches.

Installation:

1. Install 2”x2”x24” wood stakes nte 4’ o.c.
2. Place compost socks no closer than 5 feet from the toe of slopes to allow runoff to pool.
3. Install parallel with the contours of the slope with the ends of the socks pointed toward the upslope.
4. Lace together and/or overlap for long run applications to form a continuous length.
5. Use wood stakes to secure compost socks in place if installed on slopes.
6. Soil stabilization materials including rolled erosion control products, mulch, or other temporary ground cover to stabilize until vegetation is established.

Inspection:

Inspect for damage, displacement, sediment depth, undermining, and/or overtopping.

Maintenance:

1. Repair or replace damaged or displaced compost socks.
2. Remove accumulated sediment before it reaches one-half of the sock height or one-third of the available storage if protecting a water body or storm drain inlet.