In Jancyn Mfg. Corp. v. Suffolk County (71 N.Y.2d 91 [1987]) the Court of Appeals found no preemption of a local ordinance that governed cesspool additives. The Court found no express preemption language, no intent for state uniformity or exclusivity and no conflict with, or inhibition of, the State's general law. The ordinance was limited to certain chemicals and their pollution of the Long Island water supply. The state Department of Environmental Conservation considered it compatible and not preempted.