Remedial Action Plan Amendment Area T - East Shore Areas Marina Bay Project

Summary

SCH Number
2008078396
Lead Agency
Toxic Substances Control, Department of (Department of Toxic Substances Control)
Document Title
Remedial Action Plan Amendment Area T - East Shore Areas Marina Bay Project
Document Type
NOE - Notice of Exemption
Received
Posted
7/29/2008

Document Description
The purpose of the project is to remove a liquid phase hydrocarbon residue floating on top of groundwater in at least one well at the site (less than ¾ of a foot thick). The estimated volume of impacted ground water appears to be very limited and remediation is estimated to result in the removal of not more than 55 gallons of the hydrocarbon liquid. The Draft RAP Amendment proposes to remove the liquid hydrocarbon product and dispose of it, or recycle it at a licensed hazardous waste or recycling facility. The removal will consist of hand bailing, absorption, the use of a passive collection device or water truck pumping of the contaminant. The method used will depend on the amount of the contaminant found floating over the water every time monitoring wells are examined prior to contaminant removal for up to two years. Once removed, the contaminant and any other contaminated material (including rags, adsorbent, etc.) generated during removal will be stored in two 55-gllon drums until a sufficient quantity is accumulated to be sent offsite for disposal. Containers will be stored onsite inside a secured cabinet for not longer than 90 days.

Contact Information
Tony Natera
Department of Toxic Substances Control
700 Heinz Avenue
Berkeley, CA 94710

Phone : (510) 540-3757

Location

Cities
Richmond
Counties
Contra Costa

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Tit.14,CCR Sec.15330
Reasons for Exemption
-The project is a cleanup action to be taken to prevent, minimize, stabilize, mitigate, or eliminate the release or threat of release of a hazardous waste or substance. -The project's cost is under one million dollars. -The RAP Amendment is recommended because it protects human health and the environment by removing contaminant and preventing its reaching the bay. After the cleanup is completed, quarterly ground water monitoring will continue to ensure that no more liquid phase hydrocarbons are present and that the groundwater cleanup goals have been reached. -There is no immediate health risk because the contamination is below ground, the groundwater is not being used in any manner and the contaminant, a degraded and weathered liquid petroleum derivative, has not been released to surface soil or surface water. There will be no earth-disturbing activities under the project; consequently, no impacts to historical or cultural resources will occur. -The project will occur in disturbed areas; consequently, no impacts to potential or existing habitat will occur. -A project Health and Safety Plan will be implemented for the project duration. -A potential contaminant source will be removed; consequently, impacts to water quality will not occur. -The project will occur in disturbed areas; consequently, no impacts to potential or existing habitat will occur. -A project Health and Safety Plan will be implemented for the project duration. -A potential contaminant source will be removed; consequently, impacts to water quality will not occur. -The project is not located on a site which is included on any list complied pursuant to California Government Code section 65962.5. -The project will not have a significant effect on the environment due to unusual circumstances. -The project will not require the use of a hazardous waste incinerator or thermal treatment unit.

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.

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