Remedial Design for the El Capitan Former Waste Disposal Area
5 Documents in Project
Summary
SCH Number
2022050242
Lead Agency
California Department of Toxic Substances Control
(DTSC)
Document Title
Remedial Design for the El Capitan Former Waste Disposal Area
Document Type
NOD - Notice of Determination
Received
Posted
9/23/2022
Document Description
The project activities involve the removal of contaminated soils and debris that pose a threat to human health and the environment. Removal of contaminated soils and debris will also facilitate remediation of groundwater contamination. The removal action provides protection of human health and the environment through excavation and disposal of contaminated soil exceeding recommended removal goals (RGs). In addition, the removal action provides protection of human health and the environment by directly injecting an amendment or amendments to actively treat contaminated groundwater in the target groundwater treatment zone. The excavation addresses the Remedial Action Objectives (RAOs) by removing and disposing of contaminated soils at existing licensed disposal facilities outside the boundaries of the Site, whereas the groundwater action addresses RAOs through a combination of in situ treatment and monitored natural attenuation (MNA) of contaminated groundwater and sediment porewater through physical mechanisms.
Contact Information
Name
Lynne Baumgras
Agency Name
Department of Toxic Substances Control
Job Title
Senior Engineering Geologist
Contact Types
Lead/Public Agency
Phone
Location
Counties
Mariposa
Regions
Countywide
Other Location Info
Yosemite National Park
Notice of Determination
Approving Agency
Department of Toxic Substances Control
Approving Agency Role
Lead Agency
Approved On
County Clerk
Mariposa
Final Environmental Document Available at
https://www.envirostor.dtsc.ca.gov/public/profile_report.asp?global_id=80001261
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
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
Yes
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
Yes