Soil disturbance during the rainy season (October 15 to April 15) is allowed only if:
Perimeter controls sufficient to prevent eroded materials in storm water from entering the waterway are in place.
Appropriate examples of perimeter control may include, but are not limited to:
- Silt fencing
- Straw wattles/ fiber rolls
- Vegetated berms
- Straw bale sediment barriers
OR,
- Sufficient materials are available onsite to apply straw mulch at a rate of 2 tons per acre, wood chips at 5 to 6 tons per acre, or some other non-leaching material (use of pomace not permitted) at a rate protective of water quality over all disturbed soils within the setback. Mulch must be in place prior to any rain event forecast by NOAA/NWS: http://www.spc.noaa.gov/ that is likely to produce runoff.
See Appendix C for examples of sufficient and correctly installed cover crop, straw mulch/wood chip application, and perimeter controls.