California water regulators will re-examine the way they determine water rights violations in the wake of the State Water Resources Control Board’s dismissal of a proposed $1.5 million fine to a water district east of the San Francisco Bay area.

Officials issued the fine to the Byron Bethany Irritation District at the height of the drought last summer, but the water board on June 7ww affirmed two hearing officers’ earlier ruling that there wasn’t enough evidence to prove the district took water it wasn’t entitled to under its century-old water right.