Comprehensive Operations Plan and Monitoring Special Study
The Department of Water Resources (DWR) and U.S. Bureau of Reclamation (Reclamation) are working collaboratively with stakeholders to revise the draft Comprehensive Operations Plan (COP) and Monitoring Special Study (MSS).
Quarterly stakeholder meetings are being planned to coordinate continued development of the COP and MSS. For more information on stakeholder meetings, and to be added to the stakeholder contact list, please contact Erika Britney at Erika.Britney@icf.com
On December 12, 2018, the State Water Resources Control Board (Water Board) amended the Water Quality Control Plan (Resolution No. 2018-0059) for the San Francisco Bay/Sacramento-San Joaquin Delta Estuary (2018 Bay-Delta Plan). The amendments include revised salinity objectives for the southern Delta.
As directed under these amendments, DWR and Reclamation are developing the COP and MSS to address impacts of State Water Project and Central Valley Project operations and inform the implementation of the amended salinity objectives.
The MSS will advance the science and analytical tools in an open constructive way that address the revised salinity objectives outlined in the 2018 Bay-Delta Plan and identify long-term monitoring protocols.
DWR and Reclamation have proposed to conduct six technical studies in the MSS. Based on science, collectively, the MSS is intended to help further understand southern Delta water quality dynamics, identify sources of salinity in the southern Delta, and develop tools that will ultimately support long-term monitoring and compliance.
In order to improve modeling and our understanding of water quality in the south Delta, data will need to be assimilated from several sources including fixed point water quality monitoring stations, grab samples, point source discharges like wastewater treatment plants, and agricultural return flows.
This study utilizes hydrodynamic modeling to identify areas of low or null flows and integrates multiple sources of data (volume and EC) into the model to improve salinity forecasting. DWR has developed a prototype data assimilation model which identify gaps in the water quality monitoring network and proposes regions where obtaining samples could improve the model's forecasts. Improved results for this study will rely heavily on obtaining point source data from wastewater treatment plants in the south Delta region and agricultural return data from local stakeholders.
- Water Quality Control Plan for the San Francisco Bay/Sacramento-San Joaquin Estuary
- Draft Comprehensive Operations Plan and Monitoring Special Studies *(Available upon request)
- Comprehensive Operations Plan and Monitoring Special Studies Appendix B – Summary of Studies Informing South Delta Salinity *(Available upon request)
For program related inquiries, contact:
Division of Operations and Maintenance
South Delta Branch
Address: 1416 9th Street
Sacramento, CA 95814
Phone: (916) 653-9883