Cal. Wat. Code § 13243 : CALIFORNIA WATER CODE — WATER QUALITY — REGIONAL WATER QUALITY CONTROL — REGIONAL WATER QUALITY CONTROL PLANS — Conditions or areas where discharge of waste not permitted TEXT PDF A regional board, in a water quality control plan or in waste discharge requirements, may specify certain conditions or areas where the discharge of waste, or certain types of waste, will not be permitted. Ca. Water Code § 13243 Added by Stats. 1969, Ch. 482.