Which board is responsible for the enforcement of water rights laws in California?

The State Water Resources Control Board is the agency tasked with enforcing water rights laws in California. This board oversees the allocation and management of water resources, which includes the enforcement of water rights and ensuring that these rights are upheld in accordance with state laws.

The board's responsibilities include regulating the diversion and use of water, ensuring compliance with water rights licenses, and addressing conflicts among different water users. They play a critical role in maintaining sustainable water use and protecting water quality throughout the state.

Other boards mentioned, like the State Water Quality Board and the California Natural Resources Board, focus on specific aspects of water quality and broader natural resource management, but they do not have the same mandate to manage and enforce water rights as the State Water Resources Control Board does. The California Water Rights Board is not an existing entity; the appropriate title is the State Water Resources Control Board, making the correct answer all the more clear.