Jeong Water Diversion, Water Impoundment, Stream Crossings and Stream Restoration Project (Lake or Streambed Alteration Agreement No. 1600-2019-0120-R1)

Jeong Water Diversion, Water Impoundment, Stream Crossings and Stream Restoration Project (Lake or Streambed Alteration Agreement No. 1600-2019-0120-R1)

The project is limited to 11 encroachment(s) (Table 1). One encroachment is for water diversion from an unnamed tributary to the Mad River. Water is diverted for domestic use and irrigation storage. Work for the water diversion will include use and maintenance of the water diversion infrastructure. One encroachment is to decommission a water diversion on an unnamed stream and cease all diversion. One encroachment is to install rock armor at the outlet of an onstream reservoir. Three encroachments are to upgrade failing and undersized stream crossings. Work for these encroachments will include excavation, removal of the failing crossings, replacement with new properly sized crossings, backfilling and compaction of fill, and rock armoring as necessary to minimize erosion. Five encroachments are to decommission stream crossings and restore the stream channels. Table 1. Project Encroachments Covered by this Agreement with Description ID Latitude/Longitude Description POD-1 40.6539, -123.8534 Water diversion from unnamed stream tributary to the Mad River. Permittee has agreed to remove the water diversion infrastructure and cease all water diversion for any purpose. POD-2 40.6489, -123.8517 Water diversion from an unnamed spring for domestic use and irrigation from storage. Cannabis Irrigation SWRCB application ID: H100246 Permittee shall follow SWRCB Cannabis Policy; diversion to storage for cannabis irrigation from November 1 – March 31 when sufficient flows exist, 3 gallons per minute, 80% bypass at all times. Domestic Use SWRCB application ID: S027562. Water diversion for domestic use year-round. Permittee shall implement Seasonal Diversion Minimization: 300 gallons per day from May 15 – October 31, 80% bypass at all times. Onstream Reservoir 40.6554, -123.8545 Enhance existing spillway by lowering the freeboard of the reservoir by approximately 1.5 feet and install rock armor at the outlet. Rock armor shall be installed below spillway to ID Latitude/Longitude Description prevent erosion. No water diversion is authorized. Permittee shall implement invasive aquatic species monitoring and management. Crossing-1 (SC-A) 40.6536, -123.8529 Replace existing culvert with a minimum 60-inch diameter culvert, set at grade. Crossing-2 (SC-B) 40.6537, -123.8535 Replace existing culvert with a minimum 72-inch diameter culvert, set at grade. Crossing-3 (SC-C) 40.6563, -123.8572 Decommission existing stream crossing and restore the stream channel. Crossing-4 (SC-D) 40.6575, -123.8572 Decommission existing stream crossing and restore the stream channel. Crossing-5 (SC-E) 40.6579, -123.8539 Decommission existing stream crossing and restore the stream channel. Crossing-6 (SC-F) 40.6576, -123.8527 Decommission existing stream crossing and restore the stream channel. Crossing-7 (SC-G) 40.6541, -123.8518 Install a 42-inch diameter culvert in line with the natural channel where stream diverts down the inboard ditch. Stream Restoration (SC-H) 40.6557, -123.8550 Decommission existing stream crossing and restore the stream channel. Permittee shall submit a Stream Restoration Plan by June 30, 2021 for CDFW review and approval.

Kneeland

Humboldt

Northern California

Humboldt