Biomethane.

Existing law requires the Public Utilities Commission, by rule or order, to adopt standards for biomethane that is to be injected into a common carrier pipeline that specify, for constituents that may be found in that biomethane, concentrations that are reasonably necessary to ensure the protection of human health, and pipeline and pipeline facility integrity and safety. Pursuant to this requirement, the commission has adopted standards to ensure the protection of human health, and pipeline and pipeline facility integrity and safety, in part by establishing a biomethane minimum heating value, which is a measure of the energy content, a biomethane siloxane trigger level, which gives rise to a monitoring requirement, and a biomethane siloxane lower action level, which is used in screening gas supplies. This bill would require the commission to modify the minimum heating value and the siloxane trigger and lower action levels, as specified.