Retrofit of the Argonaut Mine Tailings Dam
2 Documents in Project
Download CSV
New Search
Print
Summary
- SCH Number
- 2017102068
- Lead Agency
- Toxic Substances Control, Department of (Department of Toxic Substances Control)
- Document Title
- Retrofit of the Argonaut Mine Tailings Dam
- Document Type
- NOD - Notice of Determination
- Received
- Posted
- 12/29/2017
- Present Land Use
- Open area
- Document Description
- Project consists of removing the tailings and soil from in front of the dam so that concrete can be used to fill in the concrete arches and an earthen berm will be placed in front of the dam. The DTSC is overseeing the retrofit of the dam pursuant to CA Health and Safety Code Section 25356.1. The purpose of the Remedial Action Plan is to retrofit the dam and remove the immediate potential risk to human health and the environment by reducing or eliminating a failure of the dam which would release arsenic-contaminated failings into the drainage of the City of Jackson, CA. Cleanup activities to be conducted pursuant to the Response Plan include the following: Excavate an estimated 63,000 cubic yards of impacted tailings from in front of the dam to Argonaut Dr. consolidate the excavated impacted tailings on-Site, beneath a clean soil "cap". Fill the concrete arches of the dam will foaming concrete and placed a clean fill berm in front fo the dam for stability.
- Contact Information
-
Tami Trearse
Department of Toxic Substances Control
8800 Cal Center Drive
Sacramento, CA 95826-3000
Phone : (916) 255-3747
Location
- Cities
- Jackson
- Counties
- Amador
- Cross Streets
- Argonaut Dr and Sutter St
- Zip
- 95642
- Total Acres
- 2
- Parcel #
- 044-010-074, 082, 083, 084, 100
- State Highways
- I-5
- Airports
- Amador County Airport
- Schools
- Argonaut HS /MS
Notice of Determination
- Approving Agency
- DTSC
- Approving Agency Role
- Lead Agency
- Approved On
- Final Environmental Document Available at
- 8800 California Center Dr., Sacramento, CA 95826
Determinations
- (1) The project will have a significant impact on the environment
- Yes
- (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
- Yes
- (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
- N/A
- (5) A Statement of Overriding Considerations was adopted for this project
- No
- (6) Findings were made pursuant to the provisions of CEQA
- Yes
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 state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613.