Empire Mine SHP Conveyance Corridor Remediation (Streambed Alteration Agreement EPIMS Notification No. NEV-44456-R2)
14 Documents in Project
Summary
SCH Number
2008082066
Lead Agency
California Department of Parks and Recreation
Document Title
Empire Mine SHP Conveyance Corridor Remediation (Streambed Alteration Agreement EPIMS Notification No. NEV-44456-R2)
Document Type
NOD - Notice of Determination
Received
Posted
5/31/2024
Document Description
The project is limited to the grading and recontouring of the remnant mining tailings and the construction of a new high flow, impermeable HDPE lined channel. The channel would be approximately 1208 linear feet in length and 17 feet in width (0.45 acres), with an approximately
44-foot elevation difference between the inlet culvert at 2756.6 feet to the outlet culvert at 2531.8 feet elevation. The new channel will create a barrier between the contaminated tailings and the soil cover material, to prevent mobilization of contaminants and improve surface flow water quality in the Project Area and further downstream.
Contact Information
Name
Caitlyn Oswalt
Agency Name
CALIFORNIA DEPARTMENT OF FISH &WILDLIFE
Job Title
Environmental Scientist
Contact Types
Responsible Agency
Phone
Location
Coordinates
Cities
Grass Valley
Counties
Nevada
Regions
Northern California
Zip
95945
Parcel #
009-620-018-000
Other Location Info
Located at the Conveyance Corridor to Little Wolf Creek; 10791 East Empire Street Grass Valley
Notice of Determination
Approving Agency
CALIFORNIA DEPARTMENT OF FISH AND WILDLIFE
Approving Agency Role
Responsible Agency
Approved On
County Clerk
Nevada
Final Environmental Document Available at
CDFW Region 2 Headquarters
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
No
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
No
(2c) An other document type 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 mitigation reporting or monitoring plan was adopted for this project
No
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
Yes
Attachments
Notice of Determination
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