Amato Water Diversion, Stream Crossings, and Ponds Project (Lake or Streambed Alteration Agreement No. 1600-2018-0634-R1)
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Summary
- SCH Number
- 2016112028
- Lead Agency
- Mendocino County
- Document Title
- Amato Water Diversion, Stream Crossings, and Ponds Project (Lake or Streambed Alteration Agreement No. 1600-2018-0634-R1)
- Document Type
- NOD - Notice of Determination
- Received
- Posted
- 6/12/2020
- Document Description
- This Agreement relies on the Notification materials and a CDFW site inspection by Environmental Scientist John Herrera on January 9, 2019. The project is limited to five (5) encroachments (Table 1). One encroachment is for water diversion from an unnamed tributary to Feliz Creek. Water is diverted for irrigation only. Work for the water diversion will include use and maintenance of the water diversion infrastructure. Diverted water is stored in Reservoir-1 (Table 1) and additional storage tanks. The second proposed encroachment is to enhance a spillway of an existing reservoir (Reservoir-1), with an 18” diameter outlet connected to waters of the State, that serves as storage for the POD. Work for the spillway enhancement will involve removal of large rocks and material from existing outlet ditch, excavation of ditch banks to 2:1 slope, lining ditch with appropriately sized and embedded rock, and application of erosion control measures to minimize surface erosion. The third proposed encroachment (STX-A) is to install a rock armored low water crossing on an existing road without a crossing facility. Work for this encroachment will involve excavation, construction of the armored crossing following construction details in the Notification, backfilling and compaction of fill where necessary, and rock armoring as necessary to minimize erosion. The fourth proposed encroachment (STX-2) is to repair and enhance an existing stream crossing that lacks armoring, is misaligned, not set to grade, and includes a secondary undersized parallel culvert that is obstructing stream flow. Work for this encroachment will include excavation, removal of the smaller parallel culvert, properly re-aligning and setting the larger 18” culvert to grade, backfilling and compaction of fill, and rock armoring as necessary to minimize erosion. The fifth proposed encroachment (STX-5) is to upgrade a failing and undersized stream crossing functioning as an outlet for an on-stream pond. Work for this encroachment will include excavation, removal of the failing crossing, replacement with new properly sized crossing, backfilling and compaction of fill, and rock armoring as necessary to minimize erosion. (See NOD for full details)
- Contact Information
-
Mary Lynn Hunt
County of Mendocino
860 N. Bush Street
Ukiah, CA 95482
Phone : (707) 234-6650
Location
- Coordinates
- 38°58'37.6"N 123°11'43.4"W
- Cities
- Hopland
- Counties
- Mendocino
- Parcel #
- 047-070-46
- Township
- 13N
- Range
- 12W
- Section
- 20&21
- Base
- MDB&M
- Other Location Info
- Yorkville U.S. Geological Survey 7.5-minute quadrangle
Notice of Determination
- Approving Agency
- CDFW
- Approving Agency Role
- Responsible Agency
- Approved On
- Final Environmental Document Available at
- County of Mendocino 860 N. Bush Street Ukiah, CA 95482
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
- No
- (5) A Statement of Overriding Considerations was adopted for this project
- No
- (6) Findings were made pursuant to the provisions of CEQA
- No
Attachments
- Notice of Determination
- 2016112028_1600-2018-0634-R1 PDF 158 K
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