Corrective Measures Study Former Technichem Facility


SCH Number
Public Agency
Department of Toxic Substances Control
Document Title
Corrective Measures Study Former Technichem Facility
Document Type
NOE - Notice of Exemption
Present Land Use
Document Description
The project involves approval of the Corrective Measures Study, Former Technichem Facility (Site), for installation of a subslab venting system and implementation of enhanced reductive dechlorination including installation of three new monitoring wells. A groundwater monitoring system, consisting of seven existing monitoring wells, currently operates at the Site. The ten wells would be used to confirm the stability of the existing groundwater plume and to monitor potential horizontal and vertical migration of contaminants of concern (COCs) present in the groundwater. In addition, the project would install approximately 0.35-acre of concrete at the Site in addition to using existing concrete and asphalt pavements to prevent exposure to COCs in soil and groundwater and to minimize storm water infiltration.

Contact Information

Yongsheng Sun
Agency Name
Department of Toxic Substances Control
Contact Types
Lead/Public Agency

Agency Name
Mario J. and Virginia E. Pellegrini Trust
Contact Types
Project Applicant


Cross Streets
4245 Halleck Street

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Reasons for Exemption
1. The project is a minor cleanup action to be taken to prevent, minimize, stabilize, mitigate, or eliminate the release or threat of release of a hazardous waste and substance. 2. The project is a removal action costing $1 million or less. 3. The project will not be located on a site which is included on any list compiled pursuant to Cal. Gov. Code § 65962.5 ( 4. The project will not have a significant effect on the environment due to unusual circumstances. 5. The project will not result in damage to scenic resources, including but not limited to, trees, historic buildings, rock outcroppings, or similar resources, within a highway officially designated as a state scenic highway. 6. The project will not cause a substantial adverse change in the significance of a historical resource. 7. The project will not require onsite use of a hazardous waste incinerator or thermal treatment unit. 8. The project will not require the relocation of residences or businesses. 9. The project will not involve the potential release into the air of volatile organic compounds as defined in Health and Safety Code section 25123.6 (Permit to operate the sub-slab venting system, which is permitted by the BAAQMD, will be obtained from BAAQMD). 10. The cumulative impact of successive projects of the same type on the same place, over time, if there are any, will not be significant. 11. The project will be consistent with applicable State and local environmental permitting requirements.


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