CDFW Permitting Guidance - Corinne Gray - Sr. Environmental Scientist Supervisor Timothy Dodson - Sr. Environmental Scientist Specialist Watershed ...
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CDFW Permitting Guidance Corinne Gray - Sr. Environmental Scientist Supervisor Timothy Dodson - Sr. Environmental Scientist Specialist Watershed Enforcement Team California Department of Fish and Wildlife
CDFW’s Authority CDFW has jurisdiction over the conservation, protection, and management of fish, wildlife, native plants, and habitat necessary for biologically sustainable populations of those species (FGC § 1802)
Applicable Fish and Game Code Sections • 1602: Requires permit for alteration of bed, bank, and channel (includes water diversion) • 5650/5652: Prohibits delivery of pollution (including sediment) to waters of the state • 5937: Requires sufficient water for fish and amphibians below dam or point of diversion (POD) • 5901: Prohibits preventing or impeding fish passage
CDFW’s Authority – California Endangered Species Act (CESA: FGC § 2081) – Lake and Streambed Alteration Agreements (LSAA: FGC § 1600 et seq.)
When do you need a LSAA? Fish and Game Code section 1602 requires an entity to notify CDFW prior to commencing any activity that may do one or more of the following: • Substantially divert or obstruct the natural flow of any river, stream or lake; • Substantially change or use any material from the bed, channel or bank of any river, stream, or lake; or • Deposit debris, waste or other materials that could pass into any river, stream or lake.
When do you need a LSAA? "any river, stream or lake" includes those that are episodic (they are dry for periods of time) as well as those that are perennial (they flow year round). • This includes ephemeral streams, desert washes, and watercourses with a subsurface flow. • It may also apply to work undertaken within the flood plain of a body of water. • Includes lakes, ponds and wet areas
Lake and Streambed Alteration Agreement LSAA FGC § 1600 et seq Water Drafting/ Diversions Stream Crossings Photo: JoAnn Dunn Photo: JoAnn Dunn
Example: “Class III” Streams Photo: Dave Manthorne
More: “Class II” Streams
Examples: Small Streams
Examples: Culverts
What is a Substantial Diversion? • While actively diverting water from stream, there is no flow or very low flow in the stream below the point of diversion. • While actively diverting water from stream, the flow in the stream below the point of diversion is considerably reduced, as determined by, for example, measurable or visual decrease in the water surface elevation; visual reduction in the width of the stream surface flow; or stranded aquatic organisms in pools or in the streambed outside of the wetted channel.” From April 15, 2016 letter to the Siskiyou County Board of Supervisors requesting guidance from CDFW
A well may need a Water Right if it is diverting from a “subterranean stream”. A well may need a LSAA if it is diverting “natural flow”.
Water Diversion Permitting •If you are directly diverting from a stream or a spring, you may need a permit from CDFW •If you have a well that is near a stream than you may need a permit from CDFW •If you are diverting from a pond, wetland, or wet area, then you may need a permit from CDFW •If you are diverting from locations where fish or amphibians live, you will need to screen the intake
Why is Instream Flow Important? • Stream riffles must have flow to produce food in streams; and support invertebrate drift feeding for fish • Dewatered riffles reduce the dissolved oxygen available in pool habitats • Migration cannot occur without adequate water in riffles
Water Diversion Permitting What can it include? • Water diversions should have adequate bypass flows to protect downstream resources • Based on the location of the diversion, and the watersheds water use and availability, CDFW is likely to assign a forbearance period (no diversion) or require a site specific bypass flow study •To meet forbearance terms, water storage may be necessary and such as a tank or a reservoir •Rate of diversion - slower is better
Reservoir Design Tips • Reservoirs should be sized to meet your water needs for storage of up to 180 days • Reservoirs should be able to be drained to interrupt the life cycle if invasive bullfrogs are present • Reservoirs should be designed to prevent entrapment of wildlife • Reservoirs must be designed by a licensed engineer
Google Earth Documents Time of Construction
Water Diversion Photo: Dave Manthorne
Water Diversion: Spring Excavation Not OK Photo: Dave Manthorne
Good Location for a Pond? Photo: Dave Manthorne
Spillway Constructed as Designed? Photo: Dave Manthorne
Cracked Fill Face is a Bad Sign Photo: Dave Manthorne
Unpermitted On-stream Pond Photo: Dave Manthorne
No Spillway Photo: Dave Manthorne
Overflow Outlets can Cause Significant Erosion Photo: Dave Manthorne
Overflow Location and Sizing Photo: Dave Manthorne
Built on Wetland Photo: Dave Manthorne
Reservoir Fail = Expensive Liability Photo: Dave Manthorne
Stream Crossings
Stream Crossings Tips: Culverts - Culverts shall be sized to pass a 100-Year storm event and associated debris (ex. trees, branches) - Culverts shall be set to grade, aligned with the natural stream channel, and extended beyond the fill slope (one 20 foot section will not do in most cases) - Rock armoring required around the culvert to dissipate energy and reduce erosion - Consult with a professional!
Better Culvert Photo: Dave Manthorne
Poor Design now “shot-gunned” Photo: Dave Manthorne
Poor Design
Poorly Designed Culverts Can Destroy Your Property
Diversion pumps Store equipment and materials away from streams diesel fuel for generators
Fish and Game Code section 12025 Enhanced fines for Fish and Game Code 1602, 5650 and 5652 violations related to cannabis cultivation $8,000-$10,000 per violation, per day.
Contacts at CDFW • Corinne Gray - 707-944-5526 • Tim Dodson – 707-944-5513 • Napa Office – 707-944-5500 For Permits for your roads, culverts, bridges, crossings, diversion, water storage. https://www.wildlife.ca.gov/Conservation/LSA/Forms
• Properly designed roads, crossings and diversions should be thought of as a business expense • Keeping your property in good condition is a good investment • Talk to a professional, they can help you plan! Thank you!
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