Occidental Road Short Term Emergency Mitigation Plan

Occidental Road Short Term Emergency Mitigation Plan

The Applicant proposes to implement an immediate remediation plan as required by North Coast Regional Water Quality Control Board Cleanup and Abatement Order No: R1-2008-0096. This Cleanup and Abatement Order (CAO) is in response to illegal dredging activity in the unnamed tributary sometime between June 16 to June 20, 2008. This activity resulted in substantial disturbance (i.e. dredging, and removal of riparian vegetation on the right bank) to approximately 600 linear feet of the unnamed tributary. The activity carved a new, approximately 400-foot, channel through seasonal wetlands, which currently diverts the natural flow of the unnamed tributary from its undisturbed channel. To remediate the disturbance caused by the activity the applicant proposes a project to install a series of check dams at 25-foot intervals along the dredged draining course of the un-name tributary, such that the flow-line elevation of the check dams will be at grade with the undisturbed portions of the unnamed tributary. As part of this short-term remediation plan the applicant will install erosion control fabric along the disturbed reach of the unnamed tributary. To further aid in reducing the potential for erosion the Applicant will also install fiber rolls along the upper bank of the disturbed reach of the unnamed tributary back to its natural channel using sandbags or the native fill material in conjunction biotechnical bank stabilization methods. Issuance of a Streambed Alteration Agreement Number 1600-2008-0498-3 is pursuant to Fish and Game Code Section 1602.

Sebastopol

Sonoma