PG&E Topock Compressor Station Site: Work Plan for Additional Groundwater Characterization Underneath the Colorado River
Summary
SCH Number
2006128108
Public Agency
Department of Toxic Substances Control
Document Title
PG&E Topock Compressor Station Site: Work Plan for Additional Groundwater Characterization Underneath the Colorado River
Document Type
NOE - Notice of Exemption
Received
Posted
12/13/2006
Document Description
DTSC approved a Corrective Action Work Plan that authorizes the drilling of up to four slant boreholes from the California shoreline of the Colorado River. Following the drilling and testing of the boreholes, up to six groundwater monitoring wells will be completed in the borings and surface well monuments will be constructed. The purpose of this project is to provide measurable data with respect to the location of the southern boundary of an existing hexavalent chromium groundwater plume at the project site, and to confirm the effectiveness of an Interim Measure currently being implemented by PG&E to control the hydraulic gradient of the groundwater plume away from the Colorado River.
Contact Information
Name
Aaron Yue
Agency Name
Department of Toxic Substances Control
Contact Types
Lead/Public Agency
Phone
Location
Counties
San Bernardino
Regions
Unincorporated
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Section 15306
Reasons for Exemption
DTSC has determined this project to be exempt under Cal. Regs., tit. 14, § 15306 because it involves basic data collection, research, and resource evaluation activities. Data collected from the monitoring wells will be used to help formulate a final remedy to remediate groundwater contamination that currently exists at the project site that will be subject to DTSC approval action pursuant to Chapter 6.5 of the Health & Safety Code. The Work Plan includes control measures required by the federal Fish & Wildlife Service and the federal Bureau of Land Management to ensure that disturbances to environmental resources are minimized or avoided.
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.