Rockville Hills Regional Park is owned by the City of Fairfield but lies within the jurisdiction of Solano County. The Sheriff Department responds to serious offenses within the Park. The Park Rangers handle less serious offenses in the Park by issuing Citations.
City Council revised Chapter 12B; Parks and Recreation section of the City Municipal Code in July 2004 to better preserve and protect the City's parks and open space properties and to compliment the Administrative Citation Program. Please make sure that you are familiar with the ordinances governing the Park before recreating there.