Page 31 - Section4.1.1-SWPPPCutSheet-FiltrexxSedimentControl

356 | Filtrexx ® Low Impact Design Manual | Version 8.0

5. Slope protection shall cover 100% of the bare or disturbed soil area, whereas, no native soil shall be visible in or through the Slope protection.

6. Slope protection shall be applied at a minimum depth of 1.5-2 in (35-50mm) or 200-270 cubic yards/ac (385-513 cubic m/ha), as specifed by the engineer.

7. Seed shall be thoroughly mixed with the GrowingMedia tm prior to application or surface applied to GrowingMedia tm at time of appliction.

8. Slope protection shall not be installed in areas of concentrated runoff fow.

9. Slope protection shall be installed at least 10 ft (3m) over/beyond slope shoulder and/or into existing vegetation to ensure runoff does not undercut the blanket.

10. Slope protection installed on slopes: greater than or equal to 4:1 shall be tracked; greater than or equal to 2:1 shall be tracked and use LockDown tm Netting; greater than 1:1 shall use erosion control blankets or turf reinforcement mats.

11. When required, LockDown tm Netting shall be installed prior to the application of the Slope protection.

12. LockDown tm Netting shall be anchored to the soil using 6-8 in (150-200mm) sod staples to be driven along the entire perimeter of the net and netting area.

13. Staples for LockDown tm Netting shall be spaced no more than 24 in (600mm)) apart on all sides.

14. Where more than 1 roll of LockDown tm Netting is required for slope width/slope length, netting edges shall overlap by a minimum of 6 in (150mm).

15. LockDown tm Netting shall be installed from top to bottom (never across) on the slope.

16. LockDown tm Netting shall be installed under the entire area of the Slope protection, including 10 ft (3m) over the shoulder of the slope.

17. LockDown tm Netting may be installed on top of the Slope protection where wind velocities and wind erosion are above normal. All other installation procedures and specifcations are the same as described above.

18. Where required, Tackifying agent shall be surface applied or broadcast over the entire area of the Slope protection.

19. Tackifying agent shall be applied at a rate of 2.5 lbs per 1000 sq. ft. (12 g per sq. m).

20. Tackifying agent shall not be applied within 25ft (7.5m) of receiving stream, river, lake, or wetland.

INSPECTION and MAINTENANCE

Routine inspection should be conducted within 24 hrs of a runoff event or as designated by the regulating authority. If rilling occurs or vegetation does not establish, the area of application should be reapplied. The use of runoff diversion devices, erosion control support practices, soil stabilizers, turf reinforcement mats, or hard armoring practices should be considered. Slope protection should be inspected until permanent vegetation is established and land disturbing/ construction activities have ceased. Temporary and permanent vegetation practices should be inspected for noxious/invasive weeds. Any area not covered by vegetation should be reseeded. LockDown tm Netting should be repaired if moved by wind/storm runoff and/or part or whole is not in contact w/ soil surface.

1. The Contractor shall maintain the Slope protection in a functional condition at all times and it shall be routinely inspected.

2. Slope protection shall be maintained until a minimum of 70% uniform cover of the applied area has been vegetated or as required by the jurisdictional agency, and land disturbing/ construction activities have ceased.

3. Slope protection may need to be irrigated during hot and dry weather, or arid and semi-arid climates to ensure vegetation establishment.

4. Where a Slope protection fails, rilling occurs, or vegetation does not establish the Contractor will repair or provide an approved and functioning alternative.

5. If gullies form in Slope protection, the area shall be re-graded prior to reinstallation of Slope protection or alternative.

6. If Slope protection is damaged by storm water runoff, runoff diversion devices installed above the Slope protection may be required.

7. If LockDown tm Netting has been moved by wind or runoff it shall be repaired by restoring contact between soil and Slope protection interface; additional staples and Slope protection application may be required.

8. Once vegetation is established in temporary applications, fnal seeding and/or permanent vegetation may not be required.

9. No additional fertilizer or lime is required for vegetation establishment and maintenance; No disposal is required for this product/practice.