California water board tackles nitrate pollution and tribal fishing rights at Mono Lake

In a recent meeting of the Water Quality Coordinating Committee (WQCC) held by the State Water Resources Control Board in California, pressing water quality issues took center stage, particularly concerning the Central Valley's groundwater. As discussions unfolded, officials highlighted the urgent need for comprehensive strategies to tackle a range of contaminants, including nitrates, PFAS, and arsenic, which threaten the drinking water supply for many communities.

The meeting revealed a stark reality: much of the Central Valley floor is affected by a nitrate plume, primarily stemming from agricultural practices and wastewater discharges. Officials acknowledged that nearly all of the 500 wastewater facilities in the region are currently out of compliance with nitrate load limits. This situation has prompted the board to develop a nitrate control program aimed at reducing these harmful discharges. The program will include long compliance schedules for various contributors, such as dairies and septic systems, as well as strategies for load reduction in specific management zones.

As the meeting progressed, the board emphasized the importance of not just providing bottled water or fill stations for affected communities but implementing long-term solutions that ensure safe drinking water. This two-pronged approach aims to address both immediate needs and the underlying causes of nitrate contamination.

In addition to the nitrate control program, the meeting also touched on a significant project concerning the designation of beneficial uses for Mono Lake and its tributaries. This initiative, which began in 2021, seeks to recognize tribal traditions and subsistence fishing rights. The board has engaged with tribal representatives and stakeholders to ensure that the designation process is thorough and respectful of cultural practices.

As the meeting concluded, officials expressed gratitude for the collaborative efforts among board members and staff, acknowledging the challenges ahead in addressing California's complex water quality issues. With a commitment to enhancing groundwater protection and ensuring safe drinking water, the WQCC is poised to take significant steps in the coming year, reflecting the urgency and importance of these discussions for the communities they serve.