Mammoth Pacific I (MP-1) Replacement Project

8 Documents in Project

Summary

SCH Number
2011022020
Lead Agency
Mono County
Document Title
Mammoth Pacific I (MP-1) Replacement Project
Document Type
NOD - Notice of Determination
Received

Document Description
The proposed project would replace the aging MP-1 geothermal power plant with a new, more modern and efficient binary power plant (referred to as "M-1") while maintaining the existing geothermal wellfield, pipeline system and ancillary facilities. No new offices or other structures are proposed, with the exception of a small substation to be placed on the north side of the project site. The M-1 plant would be located approximately 500 feet east of the existing MP-1 plant. The M-1 replacement power plant is anticipated to increase the net electricity generation by 34% while utilizing the same geothermal resources for the existing MP-1 facility. During M-1 plant startup operations, the existing MP-1 plant would continue to operate until the new M-1 plant becomes commercial, after which time the applicant would close and dismantle the old MP-1 plant becomes commercial, after which time the applicant would close and dismantle the old MP-1 plant and would utilize the former plant location for equipment storage. The transition period during which both the MP-1 and M-1 operations would overlap would be a maximum of two years from the date the M-1 plant begins startup operations.

Contact Information
Courtney Weiche
County of Mono
P.O. Box 347
Mammoth Lakes, CA 93546

760 924 1803
dlyster@mono.ca.gov

Location

Coordinates
37°38'43"N 118°54'37"W
Cities
Mammoth Lakes
Counties
Mono
Cross Streets
US 395/ SR203
Zip
93546
Total Acres
5.65
Parcel #
037-050-002
State Highways
Hwy 395, SR 203
Airports
Mammoth-Yosemite
Schools
Mammoth Lakes
Waterways
No
Township
3S
Range
28E
Section
32
Base
MDB&M

Notice of Determination

Approving Agency
Mono County Planning Commission
Approving Agency Role
Lead Agency
Approved On
Final EIR Available Location
437 Old Mammoth Road, Suite P, Mammoth Lakes, CA 93546

Determinations

(1) The project will have a significant impact on the environment
No
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
Yes
(2b) A Negative Declaration was prepared for this project pursuant to the provisions of CEQA
No
(3) Mitigated measures were made a condition of the approval of the project
Yes
(4) A Statement of Overriding Considerations was adopted for this project
No
(5) Findings were made pursuant to the provisions of CEQA
Yes
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