Upper Mormon Slough Erosion Repair Project

3 Documents in Project

Summary

SCH Number
2020120459
Lead Agency
San Joaquin County
Document Title
Upper Mormon Slough Erosion Repair Project
Document Type
NOD - Notice of Determination
Received
Posted
5/10/2021

Document Description
The proposed project would consist of repairs to the north and south banks of the upper segment of Mormon Slough near the Escalon-Bellota Bridge in San Joaquin County, California. Mormon Slough accepts flow from the Calaveras River at Bellota and carries it to the Stockton Diverting Canal, which returns the flow to the Calaveras River. Project activities include the removal of compromised material in the channel and repairing the channel slope with a variety of materials including soil-filled rock slope protection (RSP), a coarse filter bed, earthfill, and launch rock. The repairs would consist primarily of installing RSP, which generally consists of rip-rap of varying size, soil, gravel and a textile fabric above the ordinary high water mark to prevent downward migration of the soil. To promote growth of vegetation, the RSP voids would be filled with agricultural soil and seeded with grasses (i.e., soil filled RSP). Excavation prior to placement of RSP would generally be limited to removal of loose surface debris from past slope failures, minor grading to produce relatively smooth surfaces to prepare for RSP, or to key the repairs into the existing slopes. After grading, workers would install a coarse sand or gravel filter bed that will seal cracks or openings in the base soil. A base of launch rock would be installed at the lower edge of the filter, and RSP would be laid over the filter bed.

Contact Information
Matt Zidar
San Joaquin County Flood Control and Water Conservation District
Lead/Public Agency / Project Applicant
1810 East Hazelton Ave.
Stockton, CA 95205

Phone : (209) 953-7460
mzidar@sjgov.org

Location

Counties
San Joaquin
Cross Streets
State Route 26 and Escalon-Bellota Road
Zip
95236
Total Acres
20.20
Parcel #
093-080-08; 093-180-01; 093-180-02; 091-350-080-000; 091-350-090-000; 091-350-100-000
State Highways
State Route 26
Waterways
Upper Mormon Slough
Township
2N
Range
9E
Section
5, 6,7

Notice of Determination

Approving Agency
San Joaquin County Public Works
Approving Agency Role
Lead Agency
Approved On
County Clerk
San Joaquin
Final Environmental Document Available at
https://ceqanet.opr.ca.gov/2020120459/3

Determinations

(1) The project will have a significant impact on the environment
No
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
No
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
Yes
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
No
(3) Mitigated measures were made a condition of the approval of the project
Yes
(4) A mitigation reporting or monitoring plan was adopted for this project
Yes
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
Yes

Attachments

Notice of Determination
Adopted_NOD_CEQAnet_OCR   PDF 97 K

Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, 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. For more information, please visit OPR’s Accessibility Site.

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