Salt and Nutrient Management Planning (SNMP)
To ensure a sustainable water future protective of beneficial uses for all areas of California, the State Water Resources Control Board (State Water Board) adopted Resolution No. 2009-0011. The Policy for Water Quality Control for Recycled Water (Recycled Water Policy). The Recycled Water Policy streamlined permitting for recycled water projects and also recognized that salt and nutrients from all sources should be managed on a basin-wide or watershed-wide basis through the development of Salt and Nutrient Management Plans (SNMP).
The Recycled Water Policy was amended in 2013 (Resolution No. 2013-0003) to specify monitoring requirements for constituents of emerging concern (CECs) and again in 2018 (Resolution No. 2018-0057). Through each revision the Recycled Water Policy continues to recognize that due to the varied sources of salts and nutrients the appropriate way to manage groundwater basins containing salts and nutrients in concentrations that exceed or threaten to exceed water quality objectives established in basin plans is through the development of regional or sub-regional SNMPs.
The Recycled Water Policy includes guidance on developing groundwater basin-wide or subbasin-wide SNMPs to ensure that water quality objectives are met and beneficial uses are protected. An important part of regional salt and nutrient management is the participation and collaboration of stakeholders to develop and implement SNMPs for their area, with guidance from State and Regional Water Boards.
Regional SNMP Information
There are three SNMPs in development in the Colorado River Basin Region. They are the Mojave SNMP, Twentynine Palms SNMP and the Coachella Valley SNMP. Additional information on each of the SNMPs is provided below.
Workplan to Develop the Coachella Valley SNMP
Information and Resources
Regional Water Board Contact Information