As stated in section 4.9 of the Rules and Regulations

Section 4.9. Silt Fence

1. A temporary silt fence must be installed within twenty-four (24) hours whenever any portion of the ground in excess of one hundred (100) square feet (excluding gardens) is disturbed, and remain in place until the project is completed and the ground is permanently covered (e.g., structure, gravel, pavement, vegetative cover).
2. A ‘Soil & Erosion Permit’ must be obtained from the POA office.
3. Riparian Buffer Rules apply.
4. The following Installation Rules apply:
   1. A 3’ high silt fence shall be properly installed on all contours leading down hill toward all property lines.
   2. On slopes with grades greater than 5%, steel-reinforced silt fencing with wire mesh no less than 10/12 gauge (minimum of 10 gauge along the top and bottom, and a minimum of 12 gauge along the middle of the fence), and 5’ steel stakes with a minimum weight of 0.95 lbs/ft or equivalent shall be used. On slopes with grades of 5% or less, no steel reinforcement of the fabric (appropriate geotextile) is required.
      Although wood posts with a minimum diameter of 1.25” are allowed for slopes with grades of 5% or less, steel stakes with a minimum weight of .95-lbs/ft are strongly recommended.
   3. Stakes supporting steel-reinforced silt fencing shall be placed at maximum intervals of 10’ on center and the stakes shall be embedded into the ground at a minimum depth of 18” below final grade. Stakes supporting silt fencing without steel reinforcement shall be placed at maximum intervals of 7.5’ on center, and be embedded a minimum of 6” below final grade.
   4. Where silt fencing is required, both ends of the silt fence shall be extended an additional panel length (10’) and turned upslope.
   5. On slopes with grades greater than 7%, the steel-reinforced silt fence shall be located 7 feet beyond the base of the slope, to the extent possible.
   6. A minimum of a 6” trench shall be cut along the entire length of the disturbance area. The silt fence shall be installed in the trench, and the trench shall be backfilled and compacted on both sides of the silt fence to prevent blow out during storm events. All splice joints in the filter fabric shall have a minimum overlap of 18”. A stake shall be installed at the overlap.
   7. The silt fence shall be properly maintained until the project is completed and the fence can be removed [see (1) above]. The filter fabric shall be replaced whenever it has deteriorated or clogged to such extent that it reduces the effectiveness of the silt fence, or channeling along the fence length occurs. If a blow out of the silt fencing occurs, or it is ineffective in preventing the migration of sediment outside of the disturbance area, stronger silt fencing and/or double fencing shall be required such that the migration of sediment is contained within the disturbance area for the duration of the project. Silt accumulations shall be removed and properly disposed when the height of the silt reaches one-third (1/3) of the height of the silt fence, or second silt fence shall be installed. Silt accumulations shall be removed and properly disposed when the silt fence is removed at the completion of the project.