¶1A Superior Court judge allowed the defendants’ motions for summary judgment and dismissed the plaintiffs’ actions. She did so on the ground that the actions had not been commenced within three years of the date in 1982 when the respective plaintiffs became aware of the pollution of their property by gasoline that had leaked from an underground tank on nearby property. The defendant Texaco once owned a gasoline station on that property but had sold it in 1980. The offending underground tank was removed in 1981. After 1984, there was no continuing release of gasoline from the gasoline station property, nor seepage of gasoline onto the plaintiffs’ property. The defendant George Koronios is a current operator of the station. The defendant trustee is the current owner of the land on which the station is located.
¶2The plaintiffs allege causes of action in negligence, nuisance, and trespass, and a claim under the Massachusetts Oil and Hazardous Material Release Prevention Act, G. L. c. 21E (1992 ed.). In response to the defendants’ contention that the statute of limitations had run on their claims, the plaintiffs agree that their claims are subject to a three-year statute of limitations (see G. L. c. 260, § 2A [1992 ed.]; Oliveira v. Pereira, 414 Mass. 66, 73 [1992]).
¶3The plaintiffs argue that the continuing presence of the gasoline on their property is analogous to cases in which re*583lief was granted because of the continued presence of an unauthorized structure erected on one’s land. The judge rightly rejected this argument because a continuing trespass or nuisance must be based on recurring tortious or unlawful conduct and is not established by the continuation of harm caused by previous but terminated tortious or unlawful conduct. See Sixty-Eight Devonshire, Inc. v. Shapiro, 348 Mass. 177, 183-184 (1964); Wishnewsky v. Saugus, 325 Mass. 191, 194 (1950). The cases on which the plaintiffs rely concern not a single encroachment resulting in permanent harm but rather repeated or recurrent wrongs involving new harm to property on each occasion.
¶4We decline to recognize for the first time a continuing trespass or continuing nuisance concept in the circumstances *584such as exist in this case, in part, because, in adopting a three-year statute of limitations in 1992 for private actions under G. L. c. 2IE, the Legislature stated a guiding public policy. See G. L. c. 21E, § 11 A, inserted by St. 1992, c. 133, § 309. There is no distinguishing reason to justify our granting relief under a label of continuing trespass or continuing nuisance in this case when the Legislature did not recognize a similar concept of a continuing wrong under G. L. c. 2IE in its 1992 enactment of a statute of limitations for G. L. c. 21E.
¶5There is no merit to the plaintiffs’ argument that they should be allowed to delay commencing their actions until all actions that the Commonwealth brought against the defendants had been resolved. The Commonwealth was not representing the plaintiffs’ interests in pursuing the defendants. The plaintiffs were obliged to protect their own interests by timely action.
¶6Judgments affirmed.
¶7See now G. L. c. 21E, § 11A (4), inserted by St. 1992, c. 133, § 309.
¶8Those cases involved continuing nuisances that were not barred by the statute of limitations because of the recurring nature of the harm. See, e.g., Sixty-Eight Devonshire, Inc. v. Shapiro, 348 Mass. 177, 184 (1964) (gutter repeatedly poured water onto plaintiff’s building); Asiala v. Fitchburg, 24 Mass. App. Ct. 13, 19 (1987) (continuing damage from continuing private nuisance [defective retaining wall], cause of action not time barred). In those cases rights were being invaded from time to time, and thus there were continuing trespasses or continuing nuisances. See also Wishnewsky v. Saugus, 325 Mass. 191, 194 (1950) (recurrent flooding of drainage system causing damage to plaintiffs land); Wells v. New Haven & Northampton Co., 151 Mass. 46, 47-49 (1890) (culvert repeatedly channeled water onto plaintiffs land); Prentiss v. Wood, 132 Mass. 486, 487 (1882) (dam repeatedly set water back on plaintiffs mill).
¶9The plaintiffs also rely on Worcester v. Gencarelli, 34 Mass. App. Ct. 907 (1993), which involved the filling of a wetland in violation of a statute (G. L. c. 131, § 40 [1992 ed.]). The facts recited in the opinion do not indicate whether there were recurring wrongs that would represent continuing trespasses or nuisances. It is unimportant to know the answer, however, because, even if there were no recurring events, G. L. c. 131, § 40, states that each day that a violation continues (such as leaving in place unauthorized fill) constitutes a separate offense.
¶10This case does not involve the seepage of gasoline onto the plaintiffs’ properties within three years of the commencement of these actions, a circumstance that would present a different case. The plaintiffs’ brief points to no record facts that support such a contention.