Concerns over water quality dominated discussions at the recent California Water Quality Monitoring Council meeting, with officials highlighting fluctuating toxin levels across several lakes and beaches. Anza Lake remains under a swimming ban due to ongoing danger levels, despite a brief period of low toxins in September. Officials noted that two weeks of low toxin results are needed to downgrade the lake's status, but recent samples have returned high toxin levels, keeping it in the danger zone.

Lake Chabot and Temescal also face challenges, with both currently classified as dangerous due to toxin levels. Shadow Cliffs experienced a shift from caution to a green light earlier this year but has since returned to caution due to benthic concerns. Meanwhile, Del Val and East Beach have shown improvements, with East Beach maintaining good water quality.

The meeting underscored the importance of continuous monitoring, as weather conditions significantly impact toxin levels. Officials are expected to make recommendations regarding Anza Lake's status in the coming week, depending on the results of ongoing tests. The situation remains fluid, with the council emphasizing the need for public awareness and adherence to safety advisories.