DISPOSAL SITE MAINTENANCE

Description: This action involves disposing excess materials from excavations, grading and
culvert basin cleaning at designated long-term disposal sites. Once the materials are properly
disposed of, the site should be maintained on a regular basis. Long-term site maintenance is the
emphasis here. See 5-B for short-term stockpile maintenance of materials intended for reuse.
Environmental Concerns: 
• Discharge of sediment and organic material into stream or storm water drainage system.
• Introduction of noxious weeds, invasive plants, or plant disease to the site from imported
materials.
Best Management Practices: 
1. Avoid placing excess spoils into stream courses and adjacent riparian zones where it could
potentially result in sediment delivery to streams.
2. Drain spoil piles to prevent the concentration of flow and to prevent rill and gully erosion.
3. Spread material not to be re-used in compacted layers and generally conforming to the local
topography.
4. Separate organic material (e.g., roots, stumps) from the dirt fill and store separately. Place
this material in long-term, upland storage sites, as it cannot be used for fill. Leave all organic
material that can safely remain in adjacent riparian zones. Make stored woody debris
available to others as large wood for placement in streams for habitat improvement.
5. Store “clean” material in a short-term disposal site (stockpile) if it will likely be re-used for
fill or shoulder widening projects. Verify if material can be used for shoulder widening. [See:
-1]
6. Where feasible, recycle asphalt material in embankments and shoulder backing. Place these
materials where they will not enter the stream system. Asphalt that is 5 years old is
considered “inert” (that is, all oils washed off).
7. Encourage stockpiling and reusing concrete materials when possible. [See;-1]
Permits Possibly Needed:
• Permits from State and Federal agencies are usually not required as long as wetlands and
ordinary high water areas are avoided.
• Compliance with County Noxious Weeds Ordinance.
• A conditional use permit is often required from the County Planning Department.
• An agreement must be executed with the landowner. USFS permits may be required if the site is on national forest land.

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