The city of American Canyon has filed a lawsuit asking a court to force the city of Vallejo to provide drinking water to certain areas of American Canyon under a 1996 service agreement that Vallejo has sought to limit because of severe drought. American Canyon filed its lawsuit last week in Napa County Superior Court, which alleges that Vallejo breached the water service agreement between the two cities by failing to provide water to the Canyon Estates development, a new water delivery location for Vallejo that American Canyon said was “designed and constructed with Vallejo’s oversight and approval.”