Closure Plan Amendment for Gallade Chemical Incorporated's Hazardous Waste Drum Storage Area
Summary
SCH Number
2007068253
Public Agency
Department of Toxic Substances Control
Document Title
Closure Plan Amendment for Gallade Chemical Incorporated's Hazardous Waste Drum Storage Area
Document Type
NOE - Notice of Exemption
Received
Posted
6/22/2007
Document Description
DTSC is amending the Gallade Chemical, Incorporated's Closure Plan (CP) that DTSC approved on October 1995 to close the hazardous waste drum storage area (HWDSA) with on-going remediation and to require post-closure care, including deed notification and Land-use Convenant. Post-closure care shall include continuation of the groundwater pump-and-treat and dual phase soil vapor extraction (SVE) to clean up the affected environmental media until the closure performance standard can be met.
Contact Information
Name
Jess Villamayor
Agency Name
Department of Toxic Substances Control
Contact Types
Lead/Public Agency
Phone
Location
Cities
Santa Ana
Counties
Orange
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Section 15061(b)(3)
Reasons for Exemption
The proposed project will have no significant effect on the environment because:
1) No significant disturbance will occur since the cleanup technologies are already in place;
2) Soil excavation and removal will not be performed. Demolition and removal of concrete that was approved in the original closure plan will be completed with no modification;
3) Currently the SARWQCB, as the lead agency, has undertaken clean-up of site-wide soil and ground water for the Solid Waste Management units (SWMUs) at the Facility. As a result of diminishing concentrations in ground water adjacent to the HWDSA, DTSC believes that the cleanup is significantly reducing the threat to human health and environment. The nature of the technologies being employed means that the HWDSA unit is subject to clean-up as well as the SWMUs;
4) The Facility is located in an industrialized area. The proposed industrial land use covenant will not affect future planned land uses; and will assure that the on-going cleanup under the SARWQCB authority will not be impaired;
5) The Facility is secured with fencing and locks, and restricted to public access;
6) Once closure is completed, a post-closure care plan will be required. This plan must include a health risk evaluation and the soil vapor and ground water clean-up goals that must be achieved prior to terminating soil vapor and groundwater treatment. CEQA requirements will be met for the future DTSC approval of a post-closure care plan.
7) There are no known historical features or cultural resources located at the Facility;
8) The Facility location is not in an area of biological significance and does not contain critical habitat for sensitive, threatened, or endangered species;
9) Although the site is on the Hazardous Waste and Substances Sites List, pursuant to Government Code section 65962.5, the project includes measures to remediate the source of the listed contamination and will restrict future uses of the property that are not consistent with the current contamination and such remediation.
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