12.08.220 Permit conditions.
A. No permit shall be granted unless the project conforms to the Sierra County General Plan, any community or specific plans adopted thereto and applicable Sierra County ordinances including the applicable zoning code.
B. Where a proposed grading project requires the filing of a tentative map or the intended use requires approval of a discretionary zoning permit, no grading permit shall be granted prior to approval by the applicable planning authority.
C. The permit shall be limited to work shown on the grading plans as approved by the Planning Department. In granting a permit, the Planning Department may impose any condition deemed necessary to protect the health, safety and welfare of the public, to prevent the creation of a hazard to public or private property, prevent erosion and to assure proper completion of the grading, including but not limited to:
1. Mitigation of adverse environmental impacts as disclosed by any environmental document findings. This includes the proper disposal of any hazardous material identified in the initial planning phase. The Director of Health and Human Services will approve hazardous materials management;
2. Improvement of any existing grading to comply with the standards of this chapter;
3. Requirements for fencing or other protecting of grading which would otherwise be hazardous;
4. Requirements for dust, erosion, sediment and noise control, and hours of operation and season of work, weather conditions, sequence of work, access roads and haul routes;
5. Requirements for safeguarding watercourses, whether natural or manmade, from excessive deposition of sediment or debris in quantities exceeding natural levels;
6. Requirements for safeguarding areas reserved for on-site or off-site sewage disposal;
7. Assurance by a qualified professional that the land area in which grading is proposed and for which habitable structures are proposed is not subject to hazards of land slippage or significant settlement or erosion and that the hazards of flooding can be eliminated or adequately reduced;
8. Requirements for safeguarding existing water wells and surface water supplies.
D. All disturbed areas shall be stabilized by appropriate erosion and/or sediment control measures by October 15th of each year.
E. All grading activities within the Lahontan Regional Water Quality Control Board’s “Little Truckee Hydrologic Area” between October 15th and May 1st of each year shall be conducted in such a manner that the project can be winterized within 48 hours. “Winterized” means implementing erosion and/or sediment controls that will prevent the discharge of earthen materials from the site and the controls will remain effective throughout the rainy/snow season without requiring maintenance. In general, this requires stabilizing bare, disturbed soils with mulch, erosion protection blankets, or other suitable materials, and installing perimeter sediment controls such as fiber logs or other similar materials that will remain effective during significant rain and snow events.