§ 3908. Total Maximum Daily Loads for Dissolved Oxygen and Water Temperature in the Shasta River Watershed.

The North Coast Regional Water Quality Control Board (North Coast Water Board) adopted an amendment to the Water Quality Control Plan for the North Coast Region to establish Total Maximum Daily Loads (TMDLs) for the Shasta River Watershed. The TMDLs allocate loads for dissolved oxygen and water temperature in the Shasta River Watershed. For temperature, landowners and operators in the main stem of the Shasta River below Dwinnell Dam are allocated loads equal to potential percent solar radiation transmittance, and landowners and operators on the Shasta River above Dwinnell Dam, and on its tributaries, are allocated loads equal to adjusted potential effective shade. For dissolved oxygen, load allocations are assigned to different reaches of the Shasta River. These allocations account for the total net daily oxygen demand for each reach.

The implementation actions are designed to encourage and build upon on-going, proactive restoration and enhancement efforts, and to comply with the state's Policy for the Implementation and Enforcement of the Nonpoint Source Pollution Control Program. Should any of the implementation actions not be implemented by the responsible party or should the implementation actions prove to be inadequate, the North Coast Water Board shall take appropriate permitting and/or enforcement actions.

Monitoring (e.g. implementation monitoring, upslope effectiveness monitoring, instream effectiveness monitoring, and compliance and trend monitoring) may be required in conjunction with existing and/or proposed human activities that will likely result in increased oxygen demand or elevated water temperatures. The North Coast Water Board will review, reassess, and possibly revise the Shasta TMDL Action Plan every three years as part of the Basin Planning Triennial Review process. North Coast Water Board staff will report to the North Coast Water Board at least yearly on the status and progress of implementation activities. Staff will conduct an assessment of effectiveness of collaborative efforts in the on-going programs within five years from the date of U.S. Environmental Protection Agency approval and a more extensive reassessment of the Action Plan within 10 years, or sooner.

HISTORY

1. New section summarizing amendments to basin plan filed 1-9-2007; amendments approved by State Water Resources Control Board Resolution No. 2006-0093 on 11-15-2006; amendments approved by OAL pursuant to Government Code section 11353 on 1-9-2007 (Register 2007, No. 2).