The Chino Basin Watermaster was established in 1978 under a Judgment entered in the Superior Court of the State of California for the County of San Bernardino. In September 2012, the Court ordered that the Restated Judgment, incorporating all amendments since 1978, shall serve as the official and legally operative copy of the 1978 Judgment. The Court has subsequently ordered additional amendments to the Judgment, though a further restatement has not been completed.
In July 2000, parties to the Judgment entered into the Peace Agreement. The Agreement outlined the parties’ intent to implement the Optimum Basin Management Program as well as other related responsibilities for Watermaster and the parties. In 2007, the Peace II Agreement was entered into by the parties to the Peace Agreement to maximize the beneficial use of the groundwater and the Basin to further benefit the Basin and the parties to the Judgment.
In 1998 the Court ordered Watermaster to develop the Optimum Basin Management Program (OBMP); Watermaster completed the OBMP in 2000 and IEUA completed a Programmatic Environmental Impact Report (PEIR) for the contemplated activities. The parties developed an Implementation Plan outlining the tasks and projects necessary for implementation and memorialized their agreement to implement the OBMP with the Peace Agreement. As mentioned above the parties entered into the Peace II Agreement to further enhance Basin management; again IEUA certified an environmental report, this time a Subsequent Environmental Impact Report (SEIR). In 2017 IEUA certified an Addendum to the 2000 PEIR certifying that a temporary increase in storage would have no undesirable results. Watermaster updated the OBMP in 2020.
The Watermaster Board, Advisory Committee, and the Pool Committees have each developed their own Rules and Regulations (R&R) for their respective administration.
Watermaster court filings from 2009 to present are provided for informational purposes.
Watermaster court hearing transcripts from 1977 to present are provided for informational purposes.
Watermaster Approved Resolutions from 1978 to present are provided for informational purposes.
Pool Committee Resolutions from each of the three Pools are provided for informational purposes.
Listing of original Parties to the Judgment and the history of water rights.