Environmental Assessment EA2017-0011 Addendum 2 (Hallwood Side Channel and Floodplain Restoration Project)

11 Documents in Project


SCH Number
Lead Agency
Yuba County
Document Title
Environmental Assessment EA2017-0011 Addendum 2 (Hallwood Side Channel and Floodplain Restoration Project)
Document Type
NOD - Notice of Determination
Document Description
This is an addendum to the previously adopted CEQA/NEPA document to plant additional riparian acreage within the project grading footprint to support Yuba Water Agency’s FERC mitigation and Voluntary Agreement requirements. USFWS are supportive of this proposal and the benefits that this additional riparian vegetation will provide to rearing juvenile salmonids in the form of shade, cover, and food inputs. There would be no change to the work activities described in the Project CEQA/NEPA document. The only change to the project footprint would be an approximately 1.3-acre area adjacent to the North Training Wall (NTW) where additional planting would occur. All mitigation measures currently in place to protect special status species and water quality would continue to be implemented, including preconstruction surveys, buffers, construction monitoring for sensitive species and water quality impacts, and fish impact avoidance measures. Air quality impacts would increase slightly compared to the original CEQA analysis, as heavy equipment would be required to implement the planting. Two mini-excavators and two small excavators would be utilized over approximately 8 hours per day for 6 weeks in 2021, 2 weeks in 2022, and 1 week in 2023. The additional riparian planting would only result in small increases in emissions of criteria pollutants. Phase 2 additional riparian planting is the most extensive and results in the largest increase in emissions from heavy equipment to accomplish the planting. However, the small yearly increases in emissions still results in none of the phases exceeding the significance threshold for each criteria pollutant. Therefore, the additional planting would not change the significance level of any environmental impacts. Additional riparian planting will have beneficial impacts to fish and wildlife species by improving habitat in the form of increased structural complexity and shading. This benefit will increase with time as the planted trees mature.

Contact Information

Ciara Fisher
Agency Name
County of Yuba
Contact Types
Lead/Public Agency

Kirsten Sellheim
Agency Name
Cramer Fish Sciences
Contact Types
Parties Undertaking Project


Countywide, Northern California, Statewide
Cross Streets
Walnut Ave off State Highway 20
Yuba River
15 16
4 5
Other Location Info
APNs 006-150-007; 006-150-011; 006-150-009; 006-150-004; 006-100-075; 006-100-074; 006-160-027; 006-160-043; 006-160-042; 006-160-041; 006-100-034; 006-100-106; 006-100-108; 006-100-107; 018-150-006; 018-150-007
Other Information
The proposed project is located along a 2.5-mile stretch of the lower Yuba River near the Tiechert Hallwood Plant in the community of Hallwood) in unincorporated Yuba County.

Notice of Determination

Approving Agency
County of Yuba
Approving Agency Role
Lead Agency
Approved On
County Clerk
Final Environmental Document Available at
The office of County of Yuba Planning Department


(1) The project will have a significant impact on the environment
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
(3) Mitigated measures were made a condition of the approval of the project
(4) A mitigation reporting or monitoring plan was adopted for this project
(5) A Statement of Overriding Considerations was adopted for this project
(6) Findings were made pursuant to the provisions of CEQA


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