Explanation of Significant Differences, Alameda County Flood Control and Water Conversation District Zone 5 Line D Creek Restoration Project


SCH Number
Public Agency
Department of Toxic Substances Control
Document Title
Explanation of Significant Differences, Alameda County Flood Control and Water Conversation District Zone 5 Line D Creek Restoration Project
Document Type
NOE - Notice of Exemption
Document Description
Excavation and removal of approximately 3,900 cubic yards of mitigated material (organochlorine pesticide impacted soil). In coordination with Ohlone College, the Alameda County Flood Control and Water Conservation District (“District”) is proposing to improve the existing channel along the eastern boundary of Ohlone College, and a portion of the improvement project (soil excavation) will disturb a portion of the previously completed mitigation soil area. Mitigated soil encountered during channel improvement activities will be disposed of off-site at a Class II Landfill Facility. The excavation and soil removal will be completed under DTSC’s oversight.

Contact Information

Dennis Palacios
Agency Name
Department of Toxic Substances Control
Job Title
Project Manager
Contact Types
Lead/Public Agency


Citywide, Countywide, Northern California
Cross Streets
39399 Cherry Street, Addition Road
Parcel #
901-0185-13-8, 901-185-13-9

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
CCR Title 14, Sec. 15330
Reasons for Exemption
1. The project is a minor action designed to prevent, minimize, stabilize, mitigate or eliminate the release or threat of release of hazardous waste or hazardous substances. 2. The project is a removal action that will not exceed $1 million in cost. 3. The project does not involve the on-site use of a hazardous waste incinerator or thermal treatment unit or the relocation of residences or businesses and does not involve the potential release into the air of volatile organic compounds (VOCs) as defined in Health and Safety Code Section 25123. 4. The project will be consistent with applicable state and local environmental permitting requirements. No County permits are anticipated for the remediation. 5. The exceptions pursuant to Cal. Code Regs., tit. 14, § 15300.2 have been addressed as follows: ? Cumulative Impact. The project will not result in cumulative impacts because it is designed to be a short-term, final remedy that would not lead to a succession of projects of the same type in the same place over time. ? Significant Effect. The environmental safeguards and monitoring procedures that are enforceable and made a condition of project approval will prevent unusual circumstances from State of California – California Environmental Protection Agency Department of Toxic Substances Control occurring so that there is no possibility that the project will have a significant effect on the environment. ? Scenic Highways. The project will not damage scenic resources, including but not limited to, trees, historic buildings, rock outcroppings, or similar resources, because it is not located within view of a highway officially designated as a state scenic highway. ? Hazardous Waste Sites. The project is not located on a site which is included on any list compiled pursuant to Section 65962.5 of the Government Code. ? Historical Resources. The project is not expected to cause a substantial adverse change in the significance of a historical resource because none are anticipated.
County Clerk


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