Cannabis Cultivation Policy - Principles and Guidelines (Requirements) for Cannabis Cultivation
The Cannabis Cultivation Policy establishes principles and guidelines (requirements) for the diversion and use of water, land disturbances, and the activities related to cannabis cultivation to protect water quantity and quality. The requirements help to minimize the effects of cannabis cultivation on fisheries, wildlife, and water quality, maintain healthy riparian corridors, and protect springs, wetlands, and aquatic habitat.
NEW! Updates to the Cannabis Policy effective as of April 16, 2019
On February 5, 2019, the State Water Resources Control Board adopted the proposed updates to the Cannabis Policy – Principles and Guidelines for Cannabis Cultivation under Resolution No. 2019-0007. The updates were focused on requirements related to tribal buffers, indoor cultivation sites, onstream reservoirs, and winterization requirements.
Fully Contained Springs
Fully contained springs do not flow off a person’s property in the absence of diversion, including wet years, or after periods of heavy rain. The Cannabis Cultivation Policy allows cultivators to request an exemption from certain flow requirements if the spring being used for cannabis cultivation meets a set of pre-determined conditions. The full text of the requirements is available. Detailed information on how to request a fully contained spring exemption is available at the Fully Contained Springs page.
Online Cannabis Compliance Gage Mapping Tool - The Online Mapping Tool provides cannabis cultivators that divert surface water with a tool to check whether they may divert for cannabis cultivation on a given day.
Cannabis Compliance Gages Website (Cannabis Policy, Attachment A, Section 4)- Provides an overview of the Cannabis Policy’s current list of active compliance gages and the associated Tessmann Instream Flow Requirements. Please use the online mapping tool above to determine whether water is available to divert at your point of diversion.
On June 27, 2016, Governor Edmund G. Brown Jr. signed Senate Bill No. 837 (SB 837), which required the State Water Resources Control Board (State Water Board), in consultation with the California Department of Fish and Wildlife (CDFW), to adopt interim and long-term principles and guidelines (requirements) for the diversion and use of water for cannabis cultivation in areas where cannabis cultivation may have the potential to substantially affect instream flows.
Per Water Code section 13149, the principles and guidelines:
- Shall include measures to protect springs, wetlands, and aquatic habitats from negative impacts of cannabis cultivation;
- May include instream flow objectives, limits on diversions, and requirements for screening of diversions and elimination of barriers to fish passage; and
May include requirements that apply to groundwater extractions.
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