Cal. Health & Safety Code § 25422 — Landfill Gas

(a)  Any person violating, or threatening to violate, Section 25421 may be enjoined in any court of competent jurisdiction.

(b)  Any person who has violated Section 25421 shall be liable for a penalty not to exceed two thousand five hundred dollars ($2,500) per day for each violation. The civil penalty may be assessed and recovered in a civil action brought in any court of competent jurisdiction. The actions may be brought by the Attorney General in the name of the people of the State of California or by any district attorney or by any city attorney of a city having a population in excess of 750,000 or with the consent of the district attorney by a city prosecutor. The penalties may also be assessed administratively pursuant to Section 25187.