MEMORANDUM OPINION AND ORDER
HART, District Judge.
In 1992, the parties to this case entered into a consent decree regarding Clean Water Act (“CWA”) violations involving wetlands in an area being developed by defendants.
Following consideration by the court, the proposed decree, as modified, was entered on October 29, 1992 (the “Decree”). The United States subsequently contended that defendants had violated certain provisions of the Decree concerning the Royce Renaissance Property (the “Royce Property”).
The issue was presented on stipulated and asserted facts and briefed by the parties. • It was held that none of the facts claimed to be in dispute were material and a ruling was issued on the basis of the documents that had been presented. Defendants were held to have violated deadlines for a mitigation plan that were contained in the Decree and therefore were subject to a substantial penalty under the terms of the Decree.
See United States v. Krilich,
948 F.Supp. 719 (N.D.Ill.1996)
(“Krilich
/”). . In an opinion dated October 15, 1997, this holding was upheld on appeal, except that the government conceded that there had been a miscalculation of the penalty.
See United States v. Krilich,
126 F.3d 1035 (7th Cir.1997)
(“Krilich II”).
On December 15, 1997, a modified judgment in the amount of $1,257,500 was entered on the docket.
In November 1998, defendants moved to bar enforcement of the penalty. That motion was construed as being pursuant to Fed.R.Civ.P. 60(b).
See United States v. Krilich,
1999 WL 182333 *1 (N.D.Ill.
March 25, 1999)
(“Krilich III
”). The primary argument raised by defendants was that this court lacked jurisdiction to enforce the mitigation plan deadlines. Defendants contended that subject matter jurisdiction was lacking because the Royce Property wetlands that allegedly were improperly filled were not “navigable waters”
covered by the CWA nor did they have a sufficient connection with interstate commerce to invoke federal jurisdiction. It was assumed that these issues went to the court’s subject matter jurisdiction, but Rule 60(b)(4) relief was denied on the ground that the judgment was not void for lack of subject matter jurisdiction because, even if jurisdictional, a colorable basis existed for finding the wetlands to be navigable waters and within the federal government’s interstate commerce powers.
Id.
at *2. Defendants also contended that the penalty should not be enforced because the Decree should be modified in light of a more recent precedent from another circuit supporting that the filled lands did not fall within the purview of the CWA. The merits of this Rule 60(b)(5) contention were not addressed because defendants only sought retrospective relief (vacating the prior monetary judgment), whereas modifying the Decree in 1999 could only affect possible prospective relief.
Id.
at *3.
Defendants appealed
Krilich III,
raising only the Rule 60(b)(4) contentions discussed above. The Seventh Circuit held that the questions of whether the wetlands at issue were navigable waters or had a sufficient nexus to interstate commerce did not go to the court’s subject matter jurisdiction.
United States v. Krilich,
209 F.3d 968, 971-72 (7th Cir.2000)
(“Krilich IV”).
The court further stated: “Moreover, just as a guilty plea (in which the criminal defendant admits — at least implicitly — the connection between his conduct and interstate commerce) forecloses an appellate attack on subject matter jurisdiction, [defendants] cannot now assail the district court’s subject matter jurisdiction because [they] entered into a consent decree in which [they] agreed that the waters involved were ‘waters of the United States.’ ”
Id.
at 972. The Seventh Circuit concluded: “In sum, the district court had subject matter jurisdiction over the EPA’s case against [defendants] because the suit civilly charged a violation of a federal statute which is within the federal courts’ federal question jurisdiction. And [defendants’] attempt to now assail the court’s subject matter jurisdiction fails because [they] entered into a consent decree stipulating that the waters involved were ‘waters of the United States,’ and that is merely an element of the offense and not the basis for federal subject matter jurisdiction.”
Id.
at 973. On November 13, 2000, the Supreme Court denied
certiorari. Krilich v. United States,
531 U.S. 992, 121 S.Ct. 482, 148 L.Ed.2d 455 (2000).
On January 9, 2001, the Supreme Court issued
Solid Waste Agency of Northern Cook County v. United States Army Corps of Engineers,
531 U.S. 159, 121 S.Ct. 675, 148 L.Ed.2d 576 (2001)
(“SWANCC”).
In that case, the Supreme Court held that the Army Corps’ “Migratory Bird Rule” was unenforceable because it exceeded the authority granted to the Corps under the CWA.
Id.
at 684.
Under the Migratory
Bird Rule, waters of the United States were defined as including isolated wetlands which are or could be used by migratory birds or endangered species.
See id.
at 678.
SWANCC
holds that the CWA definition of navigable waters/waters of the United States does not extend to the full limits of Congress’s powers under the Commerce Clause.
Id.
at 683-84.
SWANCC
does not reach the question of whether, on a basis other than being visited by migratory birds, isolated wetlands may fall under the definition of navigable waters/waters of the United States.
United States v. Interstate General Co.,
152 F.Supp.2d 843 (D.Md.2001). It makes clear that it is still the rule that a nonnavi-gable (in the traditional sense) wetland directly adjacent to a navigable body of water falls within the purview of the CWA,
SWANCC,
121 S.Ct. at 682-83 (citing
United States v. Riverside Bayview Homes, Inc.,
474 U.S. 121, 106 S.Ct. 455, 88 L.Ed.2d 419 (1985)), and that an isolated wetland being visited by migratory birds is not enough to bring the wetland within the purview of the CWA. SWANCC does not clarify at what points between those two extremes a nonnavigable body of water falls within the CWA definition of navigable waters. SWANCC does indicate, though, that wetlands likely need to have a substantial connection to interstate commerce or a connection to navigable waters (in the traditional sense) in order to be waters of the United States that fall within the CWA term navigable waters. See id. at 682-83.
In February 2001, defendants brought their present motion arguing that the Decree, at least as regards the Royce Property, should be vacated in light of
SWANCC,
which defendants contend makes clear that none of the waters on the Royce Property were navigable waters subject to regulation under the CWA. They contend that, because the waters do not fall within the purview of the CWA, the United States had no authority to regulate the waters and thus no authority to enter into a consent decree, making the Decree an
ultra vires
act. According to defendants, under this theory, the Decree is void
ab initio
and should be rescinded, which would include refunding the penalties already paid and compensating defendants for the expense of the required Royce Property mitigation work. Defendants contend the Decree may be vacated or modified either under the express reservation-of-jurisdiction clause of the Decree or pursuant to the court’s inherent powers to modify its judgments. Alternatively, defendants contend that, pursuant to Rule 60(b)(5), the Decree should be modified in light of the change of law. Defendants contend that such a modification would have a prospective effect because its use of the property continues to be affected by the Decree and because the payment for the penalties is presently being held by the court and has not yet been turned over to the government.
At the time defendants presented their motion, the court advised the parties that
there were certain issues they should make sure to address. The government was advised that it would not be required to provide evidentiary proof along with its answer to the motion, but it was expected that the government would at least outline its factual basis for contending the waters on the property still fall within the purview of the CWA, even in light of
SWANCC.
The government apparently misunderstood. The government contends that, even in light of SWANCC, the pertinent Royce Property waters still fall within the purview of SWANCC. The government’s apparent position is that the wetlands at issue are not isolated. In any event, for present purposes, it will be assumed that the waters at issue actually are nonnaviga-ble, isolated wetlands that have no surface connection to the nearest stream or nearest navigable body of water.
If it is held that, under that factual assumption, defendants would be entitled to modification of the Decree or other relief, further proceedings would be necessary to resolve any genuine and material factual disputes regarding the nature of the wetlands.
The Decree contains the following provisions that are particularly pertinent to the present dispute:
2. The Court shall retain jurisdiction in order to enable any party to apply to the Court at any time for such further relief as may be necessary to interpret, enforce, or modify this Decree.
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10. Except as specifically modified herein, the terms “waters of the United States”; ... shall have the meanings assigned them at 40 C.F.R. § 230.3 or 33 C.F.R. § 323.2....
V.
WATERS OF THE UNITED STATES
17. For purposes of this Consent Decree, the parties shall treat wetland and open water areas depicted on Exhibit 1, together with the new wetland and open water area created pursuant to Part VII (injunctive relief) and depicted on Exhibit 2, as waters of the United States located on the Royce Renaissance Property.
# ‡ #
19. The Defendants hereby elect delineation for the Royce Renaissance Property pursuant to the Federal Manual for Identifying and Delineating Jurisdictional Wetlands (1989). Further, the Parties agree that the boundaries of the alleged waters of the United States ref-erencéd in Paragraph 17 and depicted on Exhibit 1 would not differ if the delineation had been conducted pursuant to the Corps of Engineers Wetland Delineation Manual (1987).
20. The boundaries depicted in Exhibits 1 and 3
shall bind the parties for the life of this Consent Decree unless and until a new Corps or EPA delineation is made pursuant to the final ver
sion of a revised wetland delineation manual. The Defendants shall not request a new jurisdictional determination from either the Corps or EPA for the Royce Renaissance Property or the Sullivan Lake Property during the life of this Consent Decree unless and until the government issues the final version of a revised wetland delineation manual.
20A. The Defendants shall continue to treat wetland and open water areas depicted on Exhibit 1 as waters of the United States until the mandate issues in
Hoffman Homes, Inc. v. EPA,
961 F.2d 1310 (7th Cir.1992) and until proceedings related to any appeal, petition for certiorari, or remand are completed. Following completion of these proceedings, unless pertinent portions of the Seventh Circuit’s April 20, 1992 decision are reversed, Exhibit 1 areas W2A, W2B, W3, W5B, and W9 shall be excluded from the obligations imposed in Paragraph 17.
Courts have always had the inherent power to reconsider or modify their judgments within a reasonable period of time.
See In re Met-L-Wood Corp.,
861 F.2d 1012, 1018 (7th Cir.1988),
cert. denied,
490 U.S. 1006, 109 S.Ct. 1642, 104 L.Ed.2d 157 (1989). That power, however, has been merged into Rule 60 of the Federal Rules of Civil procedure. There are no separate inherent powers that are more expansive than those provided for in Rule 60(b).
See id.; In re Wyciskalla,
156 B.R. 579, 580 (Bankr.S.D.Ill.1993);
Blair v. Delta Air Lines, Inc.,
344 F.Supp. 367, 368 (S.D.Fla.1972),
affd, m
F.2d 564 (5th Cir. 1973) (adopting district court opinion); 11 Charles Alan Wright, Arthur R. Miller & Mary Kay Kane,
Federal Practice & Procedure
§§ 2851-52 (2d ed.1995).
See also Glass, Molders, Pottery, Plastics & Allied Workers International Union, AFL-CIO, CLC, Local 182B v. Excelsior Foundry Co.,
56 F.3d 844, 847 (7th Cir.1995). Additionally, pursuant to Rule 60(b), this court would have the power to modify the Decree even without the express provision contained in ¶ 2 of the Decree.
See Picon v. Moms,
933 F.2d 660, 662 (8th Cir.1991). The language of ¶ 2 does not provide any additional or greater powers of modification that this court did not already have under Rule 60(b).
Defendants’ present motion must be considered as a Rule 60(b) motion. The arguments as to the judgment being void as an
ultra vires
agreement will be considered under various subsections of Rule 60(b) and the argument as to modification in light of a change of law will be considered as a Rule 60(b)(5) motion.
Defendants contend the Decree is a contract and that it should be treated as such in ruling on the pending motion. It is true that, “[f|rom the standpoint of interpretation, a consent decree is a contract.”
Cook v. City of Chicago,
192 F.3d 693, 695 (7th Cir.1999). A consent decree, however, is contractual in nature in only “some respects.”
Rufo v. Inmates of Suffolk County Jail,
502 U.S. 367, 378, 112 S.Ct. 748, 116 L.Ed.2d 867 (1992). “[I]t is an agreement that the parties desire and expect will be reflected in, and be enforceable as, a judicial decree that is subject to the rules generally applicable to other judgments and decrees.”
Id.
“[F]rom the standpoint of remedy it is an equitable
decree,” subject to equitable remedies.
Cook,
192 F.3d at 695.
The government does not dispute defendants’ contention that, where the requisite consent is lacking, a contract is void
ab initio.
However, it is not a mere contract that is before this court, it is a consent decree that has been entered as a judgment. If the judgment is void, Rule 60(b)(4) provides that the judgment is to be vacated. The parties’ contract being void is not the same as the judgment itself being void. A judgment is void if it is without subject matter jurisdiction, there was no personal jurisdiction over a party, or the judgment was entered without due process of law.
Federal Election Commission v. Al Salvi for Senate Committee,
205 F.3d 1015, 1019 (7th Cir.2000); 11 Charles Alan Wright, Arthur R. Miller & Mary Kay Kane § 2862 at 326-69;
United States v. Beebe,
180 U.S. 343, 350-51, 21 S.Ct. 371, 45 L.Ed. 563 (1901). The fact that a party to a consent judgment lacked authority to consent (as defendants contend is true of the United States in light of
SWANCC)
does not void the judgment itself.
Beebe,
180 U.S. at 350-51, 21 S.Ct. 371 (judgment not void where district attorney lacked authority to compromise absent express approval of Solicitor of the Treasury);
Phelan v. Bradbury Building Corp.,
7 F.R.D. 429, 432 (S.D.N.Y.1947) (judgment not void even if parties lacked authority to settle because, subsequent to entry of judgment based on settlement of FLSA overtime claim, Supreme Court held that statute prohibited settlement of such claims for less than full damages).
Contra National Revenue Corp. v. Violet,
807 F.2d 285, 288 (1st Cir.1986) (consent decree void under Rule 60(b)(4) because Rhode Island Attorney General did not have authority to stipulate state statute violated the federal Constitution).
As was previously held in this litigation, defendants’ contentions as to the wetlands not being United States waters and there being an insufficient interstate commerce nexus do not go to the court’s subject matter jurisdiction and therefore do not state a basis for voiding the judgment pursuant to Rule 60(b)(4).
Krilich IV,
209 F.3d at 971-72;
Interstate General,
152 F.Supp.2d at 848. Even assuming that, in light of
SWANCC,
none of the wetlands that are a subject of the Decree are actually waters of the United States subject to regulation under the CWA, no basis is stated for vacating the Decree as void pursuant to Rule 60(b)(4).
Interstate General,
152 F.Supp.2d at 848;
cf. Phelan,
7 F.R.D. at 432.
Though not stating a basis for relief pursuant to Rule 60(b)(4), the government’s alleged lack of authority to enter into the Decree may state a basis for relief under another subsection of Rule 60(b). Before the existence of Rule 60(b), the Supreme Court held in
Beebe
that an attorney’s lack of authority could state a basis for vacating a judgment even if that basis was not that the judgment itself was void.
See Beebe,
180 U.S. at 351-53, 21 S.Ct. 371. Such grounds, though, must be timely raised and are subject to the possibility that the principal ratified the attorney’s action either expressly or through conduct.
See id.
Modern cases denominate a motion to vacate based on an attor
ney lacking authority to enter into a settlement agreement as a Rule 60(b)(1) motion based on mistake or inadvertence.
See Bradford Exchange v. Trein’s Exchange,
600 F.2d 99, 102 (7th Cir.1979). A Rule 60(b)(1) motion must be brought within one year of the entry of judgment. Of course, defendants are not contending that the government’s attorneys lacked authority from their principal as in
Beebe
and
Bradford Exchange,
but they are contending that the parties were mistaken as to the government’s authority to regulate the wetlands at issue. Defendants’
ultra vires
contentions, therefore, may properly be classified as being a claim of mistake of law under Rule 60(b)(1).
Cf Webb v. James,
147 F.3d 617, 622 (7th Cir.1998). Since it is more than a year since the entry of judgment, the motion is untimely when classified as a Rule 60(b)(1) motion.
But even assuming the
ultra vires
contention instead falls within the catch-all provision of Rule 60(b)(6)
and was brought within a reasonable period of time, it would fail on its merits. In the Decree, the parties agreed that the pertinent Royce Property wetlands currently at issue were waters of the United States. Defendants are bound by that stipulation.
See Krilich IV,
209 F.3d at 972.
Compare also Hugi v. United States,
164 F.3d 378, 380-81 (7th Cir.1999). That these facts go to the federal government’s authority to regulate the wetlands does not prevent defendants from being bound by the stipulations.
See, e.g., Krilich IV, supra; Hugi, supra; Interstate General,
152 F.Supp.2d at 848. Moreover, this is a post-judgment attack on the government’s authority that comes more than eight years after entry into the Decree. Just as a colorable basis for subject matter jurisdiction is enough to defeat an attack on a judgment being void for subject-matter jurisdiction,
see Krilich III,
1999 WL 182333 at *1-2, a colorable basis for the wetlands being subject to CWA regulation should be enough to defeat the present
ultra vires
contention. At the time the parties entered into the Decree, a colorable basis existed for finding the wetlands subject to CWA regulation.
See id.
at *2.
But even if defendants are not bound by the stipulation, another ground
still exists for denying relief on the
ultra vires
contention. There is no contention that the Sullivan Lake property does not contain wetlands subject to CWA regulation, even in light of
SWANCC.
Therefore, the government was not without authority to enter into the Decree. It would not matter that the Decree also has provisions imposing obligations as to wetlands that are not subject to CWA regulation. Under a consent decree, a party can agree to greater obligations than could be achieved if the suit were to go to trial.
Rufo,
502 U.S. at 389, 112 S.Ct. 748;
Komyatti v. Bayh,
96 F.3d 955, 959 (7th Cir.1996);
Kasper v. Board of Election Commissioners of Chicago,
814 F.2d 332, 342-43 (7th Cir.1987). A consent decree, however, cannot oblige a party to perform illegal conduct.
Rufo, supra; Kasper, supra.
It is not illegal to preserve isolated, nonregulated wetlands or to create new wetlands to replace ones that have been destroyed. The provisions of the Decree were lawful and based on a substantive, colorable claim even if Sullivan Lake was the only property that had wetlands subject to CWA regulation. Even applying
SWANCC
retrospectively and assuming the Royce Property wetlands are not waters of the United States, the government was not without authority to enter into the Decree.
In sum, the
ultra vires
argument fails for four different reasons, each of which is sufficient by itself to deny the presently requested relief. First, even if the government went beyond its authority, that does not void the judgment even if it would void a contract. Second, defendants are bound by the stipulation that the wetlands are waters of the United States. Third, it is too late to now contend that the parties were mistaken as to the wetlands being waters of the United States. Fourth, the government’s agreement to enter into the Decree was not
ultra vires
because the Sullivan Lake property contains wetlands subject to CWA regulation.
Still to be considered is whether the Decree should be modified in light of the change of law represented by
SWANCC.
While the parties were negotiating, the Seventh Circuit decided
Hoffman Homes, Inc. v. Administrator, United States EPA,
961 F.2d 1310 (7th Cir.1992)
(“Hoffman I ”). Hoffman I
holds that “isolated wetlands” are not subject to CWA regulation. The government provides correspondence
showing that the parties were aware of
Hoffman I
and that, as a result, the decree in negotiation was modified to exclude specified wetlands that defendants contended were isolated. The parties also took into account the possibility that
Hoffman I
would be reversed. These provisions are incorporated in ¶ 20A of the Decree. After the case was filed, but before the Decree was approved and entered as a judgment,
Hoffman I
was vacated for rehearing. Almost nine months after the Decree was entered, the Seventh Circuit decided
Hoffman Homes, Inc. v. Administrator, United States EPA,
999 F.2d 256 (7th Cir.1993)
(“Hoffman II”). Hoffman II
holds that the wetlands at issue did not meet the regulatory definitions of waters of the United States and therefore found it unnecessary to consider whether an isolated wetland could qualify as a water of the United States.
Later in 1993, the Sev
enth Circuit issued an opinion supporting that isolated wetlands were properly subject to regulation under the CWA.
See Rueth v. United States EPA,
13 F.3d 227, 231 (7th Cir.1993).
In November 1998, defendants moved to vacate the penalties that had been imposed for violation of the Decree.
See Krilich I; Krilich II.
For the first time, defendants raised the contention that the Royce Property wetlands that were the subject of the Decree were not subject to CWA regulation because they were isolated wetlands. This court held that “[tjhere was and continues to be a colorable basis for exercising jurisdiction over the Decree’s subject matter and it cannot be held that jurisdiction in this case was totally wanting.”
Krilich III,
1999 WL 182333 at *2. Since defendants sought only retrospective relief (vacating a money judgment), the merits of modifying the Decree in light of a claimed change of law was not considered.
See id.
at *3.
The Seventh Circuit affirmed, holding that the issue did not go to this court’s subject matter jurisdiction and therefore could not be a basis for vacating the judgment as void.
See Krilich IV.
Between
Krilich III
and
Krilich IV,
the Seventh Circuit issued its opinion in
SWANCC,
which upheld the Migratory Bird Rule as constitutional and within the agencies’ authority under the CWA. 191 F.3d 845 (7th Cir.1999). That decision was reversed by the Supreme Court’s decision in
SWANCC
holding that the Migratory Bird Rule exceeded the agencies’ authority under the statute. Defendants contend the Decree should be modified in light of the Supreme Court’s decision in
SWANCC.
Rule 60(b)(5) provides in part that a judgment may be modified or vacated if “a prior judgment upon which it is based has been reversed or otherwise vacated, or it is no longer equitable that the judgment should have prospective application.” Although defendants contend the prior clause is satisfied, that provision is clearly inapplicable to this case. That provision is limited to judgments that were the basis of issue or claim preclusion; it does not apply to reversals of cases that were relied upon as precedent. 11 Charles Alan Wright, Arthur R. Miller & Mary Kay Kane § 2863 at 335. Therefore, defendants only possible relief is prospective relief under the last clause.
Agostini v. Felton,
521 U.S. 203, 239, 117 S.Ct. 1997, 138 L.Ed.2d 391 (1997);
Krilich III,
1999 WL 182333 at *3.
Under the last clause of Rule 60(b)(5), modification of a consent decree can only be appropriate if the parties based their agreement on a misunderstanding of the law.
Rufo,
502 U.S. at 390, 112 S.Ct. 748. At the time defendants originally agreed to the relevant portions of the Decree, Seventh Circuit case law
(.Hoffman I)
held that isolated wetlands were not subject to CWA regulation.
SWANCC
did not narrow the application of the CWA any more than did
Hoffman I.
Paragraph 20A of the Decree was drafted in light of
Hoffman I.
When
Hoffman I
was vacated for rehearing prior to actual entry of the Decree, the Decree was not modified to take that into account. Therefore, the Decree, as it now stands, was drafted in light of controlling precedent that was no less favorable to defendants than
SWANCC.
It was not drafted in light of subsequent Seventh Circuit precedent that, unlike
Hoffman I,
was overruled
by the Supreme Court’s decision in
SWANNC.
Also, the Decree does not oblige defendants to perform any act that is now unlawful in light of current law. Equity does not require that the Decree be reopened so that defendants may now litigate whether the wetlands on the property are actually isolated. Defendants chose not to do so more than eight years ago and the legal framework has not changed in a manner that would justify doing it today.
Cf. Interstate General,
152 F.Supp.2d at 847-48.
For the foregoing reasons, defendants’ motion to vacate the consent decree will be denied.
IT IS THEREFORE ORDERED that defendants’ motion to vacate the consent decree [141-1] is denied.