California Code of Regulations
Title 23 - Waters
Division 3 - State Water Resources Control Board and Regional Water Quality Control Boards
Chapter 15 - Discharges of Hazardous Waste to Land
Article 5 - Water Quality Monitoring and Response Programs for Waste Management Units
Section 2550.2 - Water Quality Protection Standard

(a) For each Class I waste management unit, the regional board shall establish a water quality protection standard in the waste discharge requirements. This water quality protection standard shall consist of the list of constituents of concern under section 2550.3 of this article, the concentration limits under section 2550.4 of this article, and the point of compliance and all monitoring points under section 2550.5 of this article. This water quality protection standard shall apply during the active life of the waste management unit, the closure period, the post-closure maintenance period, and during any compliance period under section 2550.6 of this article.

(b) If a discharger is conducting a detection monitoring program in conjunction with an evaluation or corrective action program for a Class I waste management unit pursuant to section 2550.1(c) of this article, the regional board may establish separate water quality protection standards for each program.