Crossing the streambed without permanent placement of materials or construction of structure

If fill material is placed, or would be discharged through grading, excavation, or dredging below the plane of the OHWM of the stream (even if it is temporary); or if dewatering and construction of a dam is required (even if it is temporary)

Section 404 permit
(USACE)

If the stream is a navigable water of the United States and a structure will be placed in it

Section 10 permit
(USACE) (may be required)

If a Section 404 Permit is required

Section 401 Water Quality Certification *
(RWQCB)

If alteration or modification of the bed, bank, or channel of a stream will occur, including excavation and grading work and removal of existing riparian vegetation

Section 1602 Streambed Alteration Agreement *
(DFG)

If work will be done between levees or within a designated floodway

Reclamation Board Encroachment Permit *

If work will result in discharge of fill or other waste material into surface waters

National Pollutant Discharge Elimination System (NPDES) permit
(RWQCB)

If work will affect federally-listed terrestrial plant or animal species

Consultation under the Endangered Species Act (ESA) with USFWS; may need a “biological opinion” or “take” permit from USFWS

If work will affect federally-listed fish species

Consultation under the Endangered Species Act (ESA) with USFWS/NMFS; may need a “biological opinion” or “take” permit from USFWS/NMFS

If work will affect state-listed animal species

Consultation under the California Endangered Species Act (CESA) with DFG; may need a state “take” permit from DFG