A Middlesex County judge has approved a class-action settlement, valued by the plaintiffs at $20 million, of a 10-year suit over chemicals at the Ciba-Geigy plant in Toms River that allegedly reduced home values.

Superior Court Judge Jamie Happas on June 7 found the agreement in Janes v. Ciba-Geigy, MID-L-1669-01, was fair, reasonable and adequate. No class members objected.