Mammoth Creek Fishery Bypass Flow Requirements, Watershed Operation Constraints, Point of Measurement, and Place of Use

7 Documents in Project


SCH Number
Lead Agency
Mammoth County Water District
Document Title
Mammoth Creek Fishery Bypass Flow Requirements, Watershed Operation Constraints, Point of Measurement, and Place of Use
Document Type
EIR - Draft EIR
Present Land Use
The Mammoth Creek Corridor is identified as a special study area. Waterbodies associated with the proposed project provide water storage and supply, and recreational opportunities.

Document Description
The District is proposing a project which has three primary components 1. Maintain on a long-term basis the fishery bypass flow requirements and compliance measurement point which have been in effect through a court order since 1997. The Old Mammoth Road (OMR) Gage would continue to be used for compliance measurement. The proposed project also proposes one new additional fishery bypass flow requirement of 4 cfs, measured at LADWP's Highway 395 (Old 395) Gage. The purpose of this component is to ensure the continued protection and maintenance of the fishery resources in Mammoth Creek, in compliance with State law. 2. Update the District's Place of Use (POU) for its surface water supplies. The purpose of this component is to allow continued long-term future water service to these entities. 3. Change certain Mammoth Lakes watershed operation constraints (WOCs) which are included in District water right Permit 17332. The purpose of these changes is to eliminate WOCs that are no longer applicable under current operating conditions, or are not consistent with regulatory and/or technical requirements.

Contact Information
Greg Norby
Mammoth Community Water District
P.O. Box 597
Mammoth Lakes, CA 93546

Phone : (760) 934-2596


Mammoth Lakes
State Highways
SR-203, I-395
Mammoth-June Lakes
Lakes Mary, Mamie & Twin; Mammoth & Hot Creeks

Notice of Completion

Review Period Start
Review Period End
Development Type
Local Action
Other Action Other Action: Water Right permit and Licenses Amendment
Project Issues
Aesthetic/Visual Biological Resources Economics/Jobs Flood Plain/Flooding Recreation/Parks Vegetation Water Quality Water Supply Wetland/Riparian Growth Inducing Cumulative Effects Other Other Issues: Climate Change
Reviewing Agencies
California Department of Parks and Recreation California Department of Public Health California Department of Transportation, District 9 California Highway Patrol California State Lands Commission Caltrans, Division of Aeronautics Department of Water Resources Resources Agency State Water Resources Control Board, Division of Water Rights California Native American Heritage Commission California Regional Water Quality Control Board, Lahontan Victorville Region 6 California Department of Fish and Wildlife, Inland Deserts Region 6

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613.

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