The Central Coast Regional Water Quality Control Board's (Central Coast Water Board's) Resolution No. R3-2020-0034 amends the Water Quality Control Plan for the Central Coastal Basin to incorporate a total maximum daily load (TMDL) for total phosphorus and an associated implementation strategy for reducing phosphorus loading to Pinto Lake, Santa Cruz County. The State Water Resources Control Board approved the amendment under Resolution No. 2021-0014 on April 20, 2021.

Responsibility for achieving phosphorus load reductions falls upon several point source and nonpoint source implementing parties as described in Attachment A to Resolution No. R3-2020-0034. The Central Coast Water Board will rely on existing regulatory measures, voluntary actions, and grant funding to ensure implementation actions are carried out and maintained by implementing parties to reduce phosphorus loading to the lake.

TMDL attainment dates are established for achieving water quality objectives. The Central Coast Water Board will track progress towards achieving the TMDL. If existing efforts are not expected to achieve the TMDL as scheduled, the Executive Officer or the Central Coast Water Board may require changes to existing monitoring, reporting, and/or implementation efforts pursuant to California Water Code sections 13263, 13267, or 13383.