California Code, Water Code - WAT § 13261

(b)(1) Civil liability may be administratively imposed by a regional board or the state board in accordance with Article 2.5 (commencing with Section 13323) of Chapter 5 for a violation of subdivision (a) in an amount not exceeding one thousand dollars ($1,000) for each day in which the violation occurs.Civil liability shall not be imposed by the regional board pursuant to this section if the state board has imposed liability against the same person for the same violation.

(2) Civil liability may be imposed by the superior court in accordance with Article 5 (commencing with Section 13350) and Article 6 (commencing with Section 13360) of Chapter 5 for a violation of subdivision (a) in an amount not exceeding five thousand dollars ($5,000) for each day the violation occurs.

(d)(1) Civil liability may be administratively imposed by a regional board in accordance with Article 2.5 (commencing with Section 13323) of Chapter 5 for a violation of subdivision (c) in an amount not exceeding five thousand dollars ($5,000) for each day the violation occurs.

(2) Civil liability may be imposed by the superior court in accordance with Article 5 (commencing with Section 13350) and Article 6 (commencing with Section 13360) of Chapter 5 for a violation of subdivision (c) in an amount not exceeding twenty-five thousand dollars ($25,000).