Mingo Logan Coal Co. v. U.S. Environmental Protection Agency (70 F. Supp. 3d 151, 2014)

United States District Court for the District of Columbia 2014-09-30

Mineral Lands and Mining Navigation and Navigable Waters

Citations

Full opinion text

MEMORANDUM OPINION

AMY BERMAN JACKSON, United States District Judge

In 2010, plaintiff Mingo Logan Coal Company, Inc. filed this lawsuit, challenging the Environmental Protection Agency’s (“EPA”) decision to withdraw its specification of two locations designated in Mingo Logan’s Clean Water Act permit as disposal sites for the fill material generated by the operation of the Spruce No. 1 Mine in West Virginia. See Am. Compl. [Dkt. # 16]. Mingo Logan claimed that EPA exceeded its statutory authority under section 404(c) s of the Clean Water Act (“CWA”), 33 U.S.C. § 1344(c) (2012), because it rescinded the specification of the disposal sites after the section 404 permit had already been issued by the Army Corps of Engineers (“the Corps”) (Count I). It also alleged that EPA’s decision to veto the specifications was arbitrary and capricious and therefore in violation of the Administrative Procedure Act (“APA”), 5 U.S.C. § 702 et seq. (2012) (Counts II-XIV). Am. Compl. ¶¶ 225-343.

On March 23, 2013, the Court granted summary judgment in favor of Mingo Logan, finding that EPA did not have the authority under section 404(c) to act after a permit had been issued, and that under the CWA, only the Corps had the power to revoke or modify a valid permit. Mingo Logan Coal Co. v. EPA, 850 F.Supp.2d 133 (D.D.C.2012). EPA appealed, and the D.C. Circuit held that EPA did have the authority to rescind a specification even after the permit to discharge was in hand. Mingo Logan Coal Co. v. EPA, 714 F.3d 608 (D.C.Cir.2013), cert. denied, — U.S. —, 134 S.Ct. 1540, 188 L.Ed.2d 557 (2014). The Court of Appeals then remanded the case for consideration of Min-go Logan’s remaining APA counts, id. at 616, and the parties’ cross-motions for summary judgment on those issues are now ripe for determination. Pl.’s Mot. for Summ. J. [Dkt. #26]; PL’s Statement of P. & A. in Supp. of PL’s Mot. for Summ. J. (“PL’s Mot.”) [Dkt. # 26]; Def.’s Mot. for Summ. J. [Dkt. #46]; Def.’s Mem. in Supp. of Def.’s Mot. for Summ. J. & in Opp. to PL’s Mot. for Summ. J. (“Def.’s Mot.”) [Dkt. # 46],

Because the Court finds that the decision set forth and explained in the Final Determination of the U.S. Environmental Protection Agency Pursuant to § JpOJ¡.(c) of the Clean Water Act Concerning the Spruce No. 1 Mine, Logan County, West Virginia (“Final Determination”), AR010103-201, was reasonable, supported by the record, and based on considerations within the agency’s purview, it will grant EPA’s motion for summary judgment and deny Mingo Logan’s motion for summary judgment.

BACKGROUND

I. Statutory Background

The Clean Water Act (“CWA”), is the primary federal statute that seeks to regulate water pollution. 33 U.S.C. § 1251 et seq. It provides for the creation and enforcement of water quality standards and establishes an extensive permit and licensing scheme to regulate the discharge of pollutants into the nation’s waterways. Id. § 1251(a)-(b). Most pertinent to this case are sections 401, 402, and 404, which together govern the issuance of permits for the discharge of pollutants.

A. Section 401.

Under section 401 of the CWA, a permit applicant that seeks to “conduct any activity including, but not limited to, the construction or operation of facilities, which may result in any discharge into the navigable waters,” must “provide the ... permitting agency a certification from the [sjtate in which the discharge originates or will originate” that certifies that the discharge under the applied-for permit is consistent with the state’s water quality standards. Id. § 1341(a). States may either issue the certification, or they may waive the requirement by failing or refusing to act within a reasonable period of time after receipt of a request. Id. Section 303 of the CWA gives the states the authority to establish the water quality standards on which they base the section 401 certifications. Id. § 1313(c).

B. Section 402.

Section 402 authorizes the Administrator of EPA (“Administrator”) to issue a permit for the discharge of any pollutant, except for the dredged and fill material covered by section 404. Coeur Alaska, Inc. v. Se. Alaska Conservation Council, 557 U.S. 261, 266, 129 S.Ct. 2458, 174 L.Ed.2d 193 (2009), quoting 33 U.S.C. § 1342(a). It also provides that if a state seeks to' “administer its own permit program for discharges into navigable waters within its jurisdiction,” the state “may submit to the Administrator a full and complete description of the program it proposes to establish and administer under [sjtate law.” 33 U.S.C. § 1342(b). If the Administrator approves the proposed program, the state assumes the responsibility for issuing section 402 permits that comply with the CWA. Id. § 1342(c)(1). West Virginia applied for and was approved.to administer the section 402 permit regime within its territory. See 47 Fed.Reg. 22,363 (May 24,1982).

A state administering its own section 402 permit program must send the Administrator “a copy of each permit application received ... and provide notice to the Administrator of every action related to the consideration of such permit application, including each permit proposed to be issued by such [sjtate.” 33 U.S.C. § 1342(d)(1). The Administrator then has ninety days to object to permits that do not meet CWA standards, and if that occurs, the state must submit a revised permit within thirty days. Id. § 1342(d)(2), (d)(4). If EPA’s objections are not resolved, the Administrator assumes responsibility of the permitting process. Id. § 1342(d)(4). Once a section 402 permit has been issued, it may only be modified by the entity that issued the permit. 40 C.F.R. §§ 122.2, 122.62, 124.5(c). West Virginia issued Mingo Logan’s section 402 permit in this case.

C. Section 404.

Section 404 of the CWA deals specifically with the discharge of dredged or fill material, and under that section, it is the Army Corps of Engineers (“Corps”) that is authorized to issue permits for the discharge of that material. 33 U.S.C. § 1344(a) (“The Secretary [of the Army] may issue permits, after notice and opportunity for public hearings for the discharge of dredged or fill material into the navigable waters at specified disposal sites.”).

But Congress assigned EPA a significant role to play in the section 404 permitting process as well. First, while a “disposal site shall be specified for each such permit” by the Corps, id. § 1344(b), that decision must be made after assessing the environmental consequences by applying the guidelines developed by EPA in conjunction with the Corps pursuant to section 404(b)(1) (“section 404(b)(1) Guidelines”). Id.; see also Coeur Alaska, 557 U.S. at 269, 129 S.Ct. 2458. Those guidelines are published at 40 C.F.R. § 230.1 et seq., and they are based upon the criteria for determining the degradation of waters set forth in section 403(c) of the CWA. See 33 U.S.C. § 1343(c).

After the Corps conducts its analysis under the section 404(b)(1) Guidelines, it publishes its written determination of the anticipated “effects of a proposed discharge of dredged or fill material on the physical, chemical, and biological components of the aquatic environment.” 40 C.F.R. § 230.11. Depending on the comments received and whether additional study is deemed to be necessary, the Corps may publish a series of these determinations. Ultimately, the decision to issue or deny a section 404 permit rests with the Corps, see 33 U.S.C. § 1344(a); it is only the Corps that exercises the authority to modify or revoke a permit, see id. § 1344(e)(2); and compliance with a section 404 permit is deemed to be compliance with the CWA. Id. § 1344(p).

But the statute also assigns EPA a second role that gives rise to this case. Section 404(c) grants EPA the authority to “veto” a decision made by the Corps to specify a particular disposal site in a permit. Id. § 1344(c); see also 40 C.F.R. § 1504.1(b). Specifically, section 404(c) provides that:

The Administrator is authorized to prohibit the specification (including the withdrawal of specification) of any defined area as a disposal site, and ... deny or restrict the use of any defined area for specification (including the withdrawal of specification) as a disposal site, whenever'he determines ... that the discharge of such materials into such area will have an unacceptable adverse effect on municipal water supplies, shellfish beds and fishery areas (including spawning and breeding areas), wildlife, or recreational areas.

33 U.S.C. § 1344(c). Accordingly, “whenever [the Administrator] determines that the discharge of [dredged and/or fill] materials ... will have an unacceptable adverse effect,” the Administrator must take the following steps to exercise its veto authority:

(1) The Regional Administrator publishes a “proposed determination!] to prohibit or withdraw the specification of a defined area as a disposal site, or to deny, restrict or withdraw the use of any defined area for the discharge of any particular dredged or fill material;”

(2) The Regional Administrator issues “recommendation to the Administrator for determination as the specification of a defined area as a disposal site;” and

(3) The Administrator publishes its “final determination to affirm, modify or rescind the recommended determination after consultation with the Chief of Engineers or with the [s]tate.”

40 C.F.R. § 231.1(a)-(b).

This veto authority may be exercised before or after the Corps issues a permit. Mingo Logan, 714 F.3d at 616. EPA’s regulations outline the procedures to be followed for the publication of a proposed determination, a comment period, and an opportunity for public hearings. See 40 C.F.R. §§ 231.3-231.6. The Administrator then makes the final decision regarding the specification, and the decision is published in the Federal Register. Id. § 231.6. The Final Determination constitutes final agency action for purposes of judicial review. Id.

II. Factual Background

Plaintiff Mingo Logan “operates a coal mine in West Virginia known as the Spruce No. 1 Mine.” Am. Compl. ¶ 1. The Spruce No. 1 Mine is “among the largest individual surface mines ever authorized in West Virginia,” and if “fully constructed, the project [would] disturb approximately 2,278 acres (about 3.5 square miles) and bury approximately 7.48 miles of streams beneath 110 million cubic yards of excess spoil.” AR010108.

In order to operate the Spruce No. 1 Mine, Mingo Logan was required to obtain several permits. Mingo Logan’s predecessor initiated the application process in 1998. Ultimately, the company obtained a CWA section 402 permit from West Virginia, which allowed the discharge of water from several sediment ponds through outfalls into streams around the mining project. AR008062, 043101. EPA initially opposed West Virginia’s decision to issue the section 402 permit, but it withdrew its objections after Mingo Logan agreed to certain conditions, including mitigation compensation for any effects caused by the sediment pond discharges. AR008414-17.

Mingo Logan also submitted an application to the Corps to obtain a CWA. section 404 permit to discharge dredged or fill material into the Right Fork of Seng Camp Creek as well as the Pigeonroost Branch, Oldhouse Branch, and White Oak Branch streams. AR003052-70. The application was subject to review by the appropriate agencies for approximately ten years, and the following events took place during that period:

• In 2002, the Corps issued a draft Environmental Impact Statement (“EIS”), evaluating the Spruce No. 1 Mine project and the requested section 404 permit. AR010120.

• In 2002, EPA sent a letter to the Corps in response to the draft EIS. Id,.-, see also AR019485-90. EPA noted that its review of the EIS “found gaps in the analyses of the mine and related adverse environmental impacts,” and it “recommended additional evaluation to support the analysis of less environmentally damaging alternatives.” AR010120; see also AR019489. More specifically, EPA noted that it “was particularly concerned by the lack of information regarding the nature and extent of impacts to the high quality streams that would be buried under valley fills.” AR010120; see also AR019489.

• In 2005, Mingo Logan took over operations of the Spruce No. 1 Mine, and it applied for and obtained a section 401 certification from West Virginia. AR020924-28. West Virginia granted the certification' — subject to Mingo Logan’s compliance with a mitigation agreement — after it concluded that Mingo Logan’s proposed discharge of dredged or fill material complied with its water quality standards. Id.

• In 2006, the Corps issued a revised draft EIS for public comment, and EPA once again expressed its concerns about the impacts of the project in a comment letter. AR012991-013388; see also AR008312-29. Specifically, EPA expressed the following concerns: (1) the “potential adverse impacts to water quality (specifically, the potential to discharge selenium and the known association of similar mining operations with degradation of downstream aquatic communities);” (2) “uncertainties regarding the proposed mitigation;” (3) “the need for additional analysis of potential environmental justice issues;” and (4) “the lack of a study related to the cumulative effects of multiple mining operations within the Little Coal River watershed.” AR010120-21; see also AR008B12-29.

• On September 22, 2006, the Corps issued a final EIS, and EPA again submitted a comment letter that expressed concerns about the adverse impacts and gaps in Mingo Logan’s mitigation plan, noting that many of EPA’s concerns had not been adequately addressed. AR010121; see also AR034962-035342, 083330-34.

• In December 2006, representatives from the Corps and EPA continued to communicate and work together concerning the Spruce No. 1 Mine project. AR023084-109, 023657-62, 024424, 024619-25, 024637-43.

• On January 22, 2007 — after over ten years of study — the Corps issued Mingo Logan a section 404 permit, despite EPA’s lingering concerns. AR025763-77.

Almost immediately after the section 404 permit issued, “a number of environmental groups, represented by Ohio Valley Environmental Coalition, filed a complaint against the Corps ... challenging its decision to issue the permit.” AR010121. Mingo Logan reached an agreement with the environmental groups who were the plaintiffs in that litigation, and in early 2007, it commenced limited operations at Spruce No. 1 Mine despite the ongoing litigation. Id.

Then, on September 3, 2009, approximately two and half years after the Corps issued Mingo Logan a section 404 permit, EPA asked the Corps to use its discretion under 33 C.F.R. § 325.7 to suspend, revoke, or modify Mingo Logan’s section 404 permit. AR010123; see also AR012754-58. In its letter, EPA asserted that recent data and analyses had revealed downstream water quality impacts that were not adequately addressed by the permit. AR012754-58; see also AR010123.

The Corps rejected EPA’s request. AR012781-88.

In response, the Regional Administrator of EPA Region III proposed to invoke the agency’s authority under section 404(c), and on April 2, 2010, EPA published a Proposed Determination to withdraw the specification of Oldhouse Branch and Pi-geonroost Branch as disposal sites in Min-go Logan’s section 404 permit. AR010111; see also AR000004-8. EPA held a public hearing, and it received more than 100 oral comments and more than 50,000 written comments, both in support of and in opposition to the Proposed Determination. AR010111; see also AR000004-8. On September 24, 2010, EPA Region III published a Recommended Determination to with.draw the specification of Pigeonroost Branch and Oldhouse Branch. AR010111; see also AR009888-970.

Pursuant to its regulations and after receipt of the Proposed Determination, EPA Headquarters gave all interested parties — including Mingo Logan and the owners of the mineral rights linked to the Spruce No. 1 Mine — an opportunity to present any corrective actions that might be taken to avoid the need for revocation of the specification of the disposal sites. AR010124-25. After reviewing the responses, 'see AR010125-27, EPA determined that it was necessary to exercise its veto authority under - CWA section 404(c), and on January 13, 2011, it issued its Final Determination purporting to “withdraw the specification of Pigeonroost Branch, Oldhouse Branch and their tributaries ... as a disposal site for dredged or fill material in connection with construction of the Spruce No. 1 Surface Mine.” AR010103-201.

In the Final Determination, EPA provided two alternative bases on which it rested its decision to revoke the specified disposal sites: (1) the direct impacts that the fill would have on wildlife within the footprint of the fill, as discussed in section V.C.; and (2) the impacts on wildlife downstream from the footprint of the fill and sediment ponds, as described in section V.D. AR010148-75.

III. Procedural Background

Mingo Logan filed this case in response to EPA’s Final Determination. See Am. Compl. In the fourteen-count amended complaint, Mingo Logan alleged: (1) that EPA lacked statutory authority under section 404(c) to withdraw a site specification after the Corps issued a permit (Count I); and (2) that the Final Determination was arbitrary, capricious, or otherwise not in accordance with the law in violation of the APA (Counts II-XIV). Id. ¶¶ 220-343.

On March 23, 2012, this Court granted Mingo Logan’s motion for summary judgment on Count I and denied EPA’s cross-motion for summary judgment, holding that EPA did not have statutory authority to withdraw a site specification once the Corps issued a permit. See Mingo Logan, 850 F.Supp.2d at 134. On appeal, the D.C. Circuit held that EPA may exercise its section 404(c) veto authority after a permit has issued, and it remanded the case for consideration of Mingo Logan’s remaining counts. See Mingo Logan, 714 F.3d at 616.

STANDARD OF REVIEW

Summary judgment is appropriate when the pleadings and evidence show that “there is no genuine dispute as to any material fact and [that] the movant is entitled to judgment as a matter of law.” Fed. R. Civ. P. 56(a). However, in cases involving review of agency action under the APA, Rule 56 does not apply due to the limited role of a court in reviewing the administrative record. Select Specialty Hosp.-Akron, LLC v. Sebelius,. 820 F.Supp.2d 13, 21 (D.D.C.2011). Under the APA, the agency’s role is to resolve factual issues and arrive at a decision that is supported by the administrative record, and the court’s role is to “determine •whether or not as a matter of law the evidence in the administrative record permitted the agency to make the decision it did.” Occidental Eng’g Co. v. INS, 753 F.2d 766, 769-70 (9th Cir.1985), citing Citizens to Preserve Overton Park v. Volpe, 401 U.S. 402, 415, 91 S.Ct. 814, 28 L.Ed.2d 136 (1971); see also Richards v. INS, 554 F.2d 1173, 1177 & n. 28 (D.C.Cir.1977).

Under the APA, a court must “hold unlawful and set aside agency action, findings, and conclusions” that are “arbitrary, capricious, an abuse of discretion, or otherwise not in accordance with law.” 5 U.S.C. § 706(2)(A), in excess of statutory authority, id. § 706(2)(C), or “without observance of procedures required by law.” Id. § 706(2)(D). However, the scope of review is narrow. See Motor Vehicle Mfrs. Ass’n of U.S., Inc. v. State Farm Mut. Auto. Ins. Co., 463 U.S. 29, 43, 103 S.Ct. 2856, 77 L.Ed.2d 443 (1983). The agency’s decision is presumed to be valid, see Citizens to Preserve Overton Park, Inc., 401 U.S. at 415, 91 S.Ct. 814, and the court must not “substitute its judgment for that of the agency.” State Farm, 463 U.S. at 43, 103 S.Ct. 2856. A court must be satisfied, though, that the agency has examined the relevant data and articulated a satisfactory explanation for its action, “including a rational connection between the facts found and the choice made.” Alp- harma, Inc. v. Leavitt, 460 F.3d 1, 6 (D.C.Cir.2006) (citations omitted) (internal quotation marks omitted).

ANALYSIS

At this juncture, the Court must determine whether EPA’s determination that the discharges authorized by Mingo Logan’s section 404 permit would cause unacceptable adverse effects was “arbitrary, capricious, an abuse of discretion, or otherwise not in accordance with the law.” 5 U.S.C. § 706(2)(A); see also James City Cnty., Va. v. EPA 12 F.3d 1330, 1337 n.4 (4th Cir.1993) (noting that the standard of review for section 404 is whether EPA’s decision was “arbitrary and capricious”). Mingo Logan’s arguments that the revocation decision violates the standard set forth in section 706 of the APA fall into two categories: (I) those that attack the sufficiency of the conclusion in section V.C. of the Final Determination that the discharges into Pigeonroost Branch and Old-house Branch would have unacceptable adverse effects on the wildlife within the footprint of the fill; and (II) those that attack the conclusion in section V.D. of the Final Determination that the proposed discharges will have an unacceptable adverse effect on wildlife downstream from the fill.

To resolve Mingo Logan’s APA challenge to the Final Determination, the Court “must ‘consider whether the decision was based on a consideration of the relevant factors and whether there has been a clear error of judgment.’ ” State Farm, 463 U.S. at 43, 103 S.Ct. 2856, quoting Bowman Transp., Inc. v. Ark-Best Freight Sys., Inc., 419 U.S. 281, 285, 95 S.Ct. 438, 42 L.Ed.2d 447 (1974).

Normally, an agency [action] would be arbitrary and capricious if the agency has relied on factors which Congress has not intended it to consider, entirely failed to consider any important aspect of the problem, offered an explanation for its decision that runs counter to the evidence before the agency, or is so implausible that it could not be ascribed to a difference in view or the product of agency .expertise.

Id. In conducting its review, the Court should not “rubber-stamp the agency decision;” it must instead “engage in a ‘substantial inquiry’ into the facts, one that is ‘searching and careful.’ ” Ethyl Corp. v. EPA 541 F.2d 1, 34-35 (D.C.Cir.1976), quoting Citizens to Preserve Overton Park, 401 U.S. at 415, 91 S.Ct. 814. At the same time, “[a]lthough this inquiry into the facts is to be searching and careful, the ultimate standard of review is a narrow one. The court is not empowered to substitute its judgment for that of the agency.” Bowman Transp., 419 U.S. at 285, 95 S.Ct. 438, quoting Citizens to Preserve Overton Park, 401 U.S. at 416, 91 S.Ct. 814 (internal quotation marks omitted). Applying that standard here, the Court finds that EPA provided a reasonable explanation for its decision to withdraw the specification of Pigeonroost Branch and Oldhouse Branch as disposal sites, and therefore, the Court must defer to the agency’s expertise and find that EPA is entitled to judgment as a matter of law.

I. EPA’s decision to revoke the specification of Pigeonroost Branch and Oldhouse Branch as disposal sites was reasonable and supported by section V.C. of the Final Determination.

In section V.C. of the Final Determination, EPA explained that the discharge of fill material into Pigeonroost Branch and Oldhouse Branch would cause “unacceptable adverse impacts to wildlife and wildlife habitat, including the naturally occurring macroinvertebrate community, salamander and other herpetofauna, fish, and water-dependent birds.” Def.’s Statement of Facts ¶ 23 [Dkt. # 46-1], citing AR010109, 010147-75. It noted that the discharge of the fill would “bury” Pigeonroost Branch and Oldhouse Branch; eradicate the wildlife living in those streams; eliminate habitat for wildlife depending on these streams; and adversely impact wildlife within the watershed. Id. ¶¶ 24-25; see also AR010149. The ultimate result would be “[t]he destruction of 6.6 miles of high quality stream habitat.” Id. ¶25 (alteration in original), quoting AR010149 (internal quotation marks omitted). EPA therefore concluded that the direct effects of the discharges within the footprint of the valley fills would have unacceptable adverse consequences that necessitated a veto of the specifications of Pigeonroost Branch and Oldhouse Branch as disposal sites.

Mingo Logan challenges that conclusion, arguing that section V.C. cannot support the Final Determination for three reasons. First, Mingo Logan contends that EPA must demonstrate that there is substantial new information showing that the fill sites would have unacceptable adverse effects in order to act after a permit has been issued, and that EPA has not met its burden to come forward with substantial new information in this case. Pl.’s Mot. at 40-53; PL’s Reply Statement of P. & A. in Supp. of Pl.’s Mot. (“PL’s Reply”) at 22 [Dkt. # 64]; PL’s Supplemental Br. in Supp. of PL’s Mot. (“PL’s Supp.”) at 3, 8-10 [Dkt. # 99]. Second, Mingo Logan claims that even if EPA did rely on substantial new information, section V.C. cannot support the Final Determination because EPA failed to demonstrate that Mingo Logan’s section 404 discharges would actually result in unacceptable adverse effects to wildlife within the footprint of the fill Site. PL’s Mot. at 49-53; PL’s Reply at 23-25; PL’s Supp. at 10. And third, Mingo Logan contends that section V.C. cannot support the Final Determination because EPA was required to consider the anticipated results of the mitigation requirements set out in the permit, but it failed to do so here. Pl.’s Mot. at 53-58; PL’s Reply at 26-29; PL’s Supp. at 3,10.

A. EPA does not need substantial new information to exercise its veto authority in this case.

Mingo Logan’s central argument is that if EPA is permitted, to withdraw a specification after the Corps has issued a section 404 permit, it can only do so based upon substantial new information. PL’s Mot. at 43-44; PL’s Supp. at 3, 8-9. Min-go Logan maintains that since none of the information that EPA set forth in the Final Determination is new — let alone “substantial” — the Court should invalidate the Final Determination and enter judgment in favor of Mingo Logan as a matter of law. The Court disagrees and it finds that, substantial new information was not needed in this case.

The text of section 404(c) is silent on the issue of whether EPA must have substantial new information when exercising its veto authority after a permit issues. Cf. Newport Galleria Grp. v. Deland, 618 F.Supp. 1179, 1182 (D.D.C.1985) (noting that “the statute sets out no threshold requirements for the initiation of section 404(c) proceedings whatsoever”). That section provides:

The Administrator is authorized to prohibit the specification (including the withdrawal of a specification) of any defined area as a disposal site, ... whenever he determines, after notice and opportunity for public hearings, that the discharge of such materials into such area will have an unacceptable adverse effect on municipal water supplies, shellfish beds and fishery areas (including spawning and breeding areas), wildlife, or recreational areas. Before making such determination, the Administrator shall consult with the Secretary [of the Army Corps of Engineers]. The Administrator shall set forth in writing and make public his findings and reasons for making any determination under this subsection.

33 U.S.C. § 1344(c). And in its opinion in this case, the D.C. Circuit highlighted the legislature’s use of the word “whenever,” concluding that “Congress granted EPA a broad environmental ‘backstop’ authority” over the Corps’ designation of a discharge site that could be exercised “at any time.” 714 F.3d at 612-13 (emphasis in original). Although the Court of Appeals decided only that there is no temporal limit on the exercise of EPA’s veto authority, and it left it to this Court to decide if there is some substantive limit, see id. the emphasis the court placed on “Congress’s intent to confer on EPA a broad veto power,” id. at 613, sends a strong message here. See also James City Cnty., 12 F.3d at 1336 (explaining that EPA’s section 404(c) “authority to veto to protect the environment is practically unadorned”).

Mingo Logan recognizes that there is no language expressly limiting EPA’s post-permit authority to be found in section 404(c). But it points to the preamble with which EPA introduced its 1979 section 404(c) regulations as well as the APA’s prohibition on arbitrary and capricious conduct as support for its claims that EPA must have substantial new information if it seeks to exercise its veto power after the Corps has issued the permit. Pl.’s Mot. at 43 — 44; PL’s Reply at 22; PL’s Supp. at 3, 8-9. But these sources do not restrict the agency’s authority under the statute.

When EPA issued its own regulations for the implementation of the CWA, it offered the public the following assurances in the preamble to the rules:

EPA agrees with the suggestion that it would be inappropriate to use 404(c) after issuance of a permit where the matters at issue were reviewed by EPA without objections during the permit proceeding, or where the matters at issue were resolved to EPA’s satisfaction during the permit proceeding, unless substantial new information is brought to the Agency’s attention after’ issuance.

44 Fed.Reg. 58,076, 58,077 (Oct. 9, 1979). Arid EPA specifically pointed to this statement of policy, in the earlier proceedings in this case when it argued that the Court should defer to EPA’s interpretation of section 404(c) to authorize post-permit revocation of the specification of a disposal site. See Def.’s Mot. at 37; see also Mot. Hr’g Tr. at 67 (November 30, 2011) (counsel for EPA discussing the substantial new information- requirement in the preamble: “I think the statute and the regulations do not provide that limitation. However, EPA’s policy adopts that limitation and EPA has, in fact, complied with that policy in the past and in this case.”). As a result, one could conclude that there are equitable grounds to find that the policy statement should be enforced in this case.

But in the preamble, EPA stated that it would be constrained by the requirement of substantial new information in the future if it sought to act after a permit had been issued but it had raised no objections during the permit application process, or its objections had been resolved to its satisfaction during that process. And neither of those situations are present here. The record is replete with EPA’s expressions of concern regarding Mingo Logan’s application for a section 404 permit to operate the Spruce No. 1 Mine. See, e.g., AR008321-29, 010120-21, 012991-013388, 019485-90, 023084-109, 023657-62, 024424, 024619-25, 024637-43, 034962-035342, 008330-34; see also Def.’s Mot. at 38; Def.’s Supplemental Mem. in Supp. of Def.’s Mot. (“Def.’s Supp.”) at 9 n.6 [Dkt. # 101]. These objections persisted throughout the application process, and even after the Corps devoted more than fifty pages of its final EIS to responding to concerns raised by EPA, EPA sent yet another letter to the Corps that reiterated its continuing misgivings about Mingo Logan’s plans to discharge fill material. AR010121, 034962-035342, 008330-34; see also Def.’s Mot. at 38; Def.’s Supp. at 9 n.6. Thus, the Court cannot conclude that Mingo Logan’s permit passed through the process “without objections” from EPA.

The Court also cannot conclude — as Mingo Logan urges — that EPA’s concerns were resolved to its satisfaction prior to the issuance of the section 404 permit by the Corps. As counsel for Mingo Logan continuously argued at the motions hearing, EPA “raised every concern that they now raise” in the Final Determination during the permit review process. Mot. Hr’g Tr. (“July 30 Hr’g Tr.”) at 14-15 (July 30, 2014); see also AR010103-201, 012754-58, 022792-809, 023068-71 (documents raising EPA’s concerns). But Mingo Logan does not point to anything in the record that reflects that EPA — as opposed to the Corps — was satisfied that those concerns had been addressed. Thus, EPA’s policy statement in the 1979 preamble is not implicated in this case, and it cannot serve as the basis for requiring EPA to have substantial new information in its Final Determination.

Moreover, the APA and general principles of administrative law do not justify requiring EPA to demonstrate that the Final Determination is based on substantial new information. Although the Court agrees that in some cases it might be arbitrary and capricious for an agency to look at the same information it looked at four years before and come to a completely different conclusion, see, e.g., State Farm, 463 U.S. at 42, 103 S.Ct. 2856 (“[A]n agency changing its course ... is obligated to supply a reasoned analysis for the change .... ”), this is not one of those cases.

Although Mingo Logan characterizes the events here as an about-face, EPA did not drastically change its position when it issued the Final Determination in 2011. As demonstrated above, EPA was concerned about Mingo Logan’s proposed section 404 discharges from day one, and those same concerns supply the grounds for the Final Determination. See AR010103-201, 012754-758, 022792-809, 023068-071; see also July 30 Hr’g Tr. at 20 (counsel for Mingo Logan: “They have the same concerns. They recognized that the issues are out there,”); id. at 30 (“[T]here’s nothing new with respect to mitigation at all.”). EPA has therefore maintained a consistent position over the last twelve years.

Mingo Logan points to an email that an EPA official sent to the Corps near the end of the permit application process. In it, William J. Hoffman, Director of the EPA Office of Environmental Programs Environmental Assessment and Innovation Division, said that EPA had “no intention of taking our Spruce Mine concerns any further from a' Section 404 standpoint.” Email from Hoffman, AR023085. Although the agency’s decision to exercise its veto authority in 2011 after it declined to do so in 2007 can be viewed as a change in position that fairly requires some explanation, it is not so drastic a change as to require a heightened standard of scrutiny, such as the “substantial new information” test that Mingo Logan proposes here. See FCC v. Fox Television Stations, Inc., 556 U.S. 502, 514, 129 S.Ct. 1800, 173 L.Ed.2d 738 (2009) (“[0]ur opinion in State Farm neither held nor implied that every agency action representing a policy change must be justified by reasons more substantial than those required to adopt a policy in the first instance.”); see also id. at 519, 129 S.Ct. 1800 (“[T]he fact that an agency had a prior stance does not alone prevent it from changing its view or create a higher hurdle for doing so.”); Nat’l Ass’n of Home Builders v. EPA, 682 F.3d 1032, 1037 (D.C.Cir.2012) (explaining that FCC v. Fox Television Stations, Inc. “dispenses with the petitioners’ complaint that the Amended Renovation Rule merely revisits old evidence and arguments, rather than adduces ‘new data’ or experience”).

First, nothing in section 404(c) requires EPA to issue a formal declaration that it will or will not exercise its veto authority prior to the issuance of a permit, and the Corps is not required to wait for EPA to announce a decision to decline to exercise its section 404(c) authority before it may issue a permit under section 404(a). See 33 U.S.C. § 1344; see also July 30 Hr’g Tr. at 92 (counsel for environmental amici: “[Tjhere are points for communication, but there is no point at which ... EPA has to say whether it is or is not going to exercise its [section 404(c) ] authority. And the Corps doesn’t have to wait for that”). Instead, section 404(c) contains permissive, discretionary language — “[t]he Administrator is authorized ... whenever,” 33 U.S.C. § 1344(c) (emphasis added) — that when viewed in connection with the D.C. Circuit’s characterization of the veto authority as “broad,” Mingo Logan, 714 F.3d at 612-13, demonstrates that EPA’s failure to block Mingo Logan’s permit application before January 2007 cannot be characterized as a prior agreement or finding by EPA that the permitted discharges would not have unacceptable adverse effects. Declining to take a position when nothing requires the agency, to take a position cannot serve as the foundation for an argument that the agency changed course when it took an official position for the first time. See Fox, 556 U.S. at 514-15, 129 S.Ct. 1800 (“Treating failures to act and rescissions of prior action differently for purposes of the standard of review makes good sense, and has basis in the text of the statute, which likewise treats the two separately.”).

Moreover, EPA’s “decision” not to act in 2007 is distinguishable from the sorts of reversals that have prompted closer scrutiny in other eases. The 2007 communication cited by Mingo Logan was merely an informal email, as opposed to a formal rulemaking or decision based on formal process, and it simply informed the Corps of agency inaction at that time, as opposed to a plan for affirmative steps. See Fox, 556 U.S. at 514, 129 S.Ct. 1800, quoting State Farm, 463 U.S. at 42, 103 S.Ct. 2856 (explaining that in State Farm, the agency had revoked a prior regulation and that the Court in that case noted that only those types of actions require “ ‘a reasoned analysis for the change beyond that which may be required when an agency does not act in the first instance’ ”); State Farm, 463 U.S. at 41, 103 S.Ct. 2856 (“[Rjevoeation of an extant regulation is substantially different than a failure to act.”). As a result, the principles of administrative law do not justify the imposition of heightened scrutiny, and EPA’s explanation in section V.C. for its revocation decision is all that is required.

The Supreme Court’s dicta in Coeur Alaska, Inc. v. Southeast Alaska Conservation Council — that “[b]y declining to exercise its veto, the EPA in effect deferred to the judgment of the Corps,” 557 U.S. at 269, 129 S.Ct. 2458 — does not change that conclusion. Neither the facts of Coeur Alaska nor the question before the Court implicated EPA’s section 404(c) authority. See id. at 261, 129 S.Ct. 2458. Moreover, the Court’s use of the word “defer” supports the conclusion that EPA’s failure to exercise its veto prior to the issuance of the permit was not a definitive statement approving the permit or a substantive finding about its environmental effects. One can defer to another, while still not entirely agreeing with their judgment. This reading of the Supreme Court’s Coeur Alaska statement is more consistent with the overall structure of section 404 — which gives EPA authority to overrule the Corps, see 33 U.S.C. § 1344(c) — and the D.C. Circuit’s conclusion that the veto authority can be lawfully exercised after the permit has issued. See Mingo Logan, 714 F.3d at 609.

Mingo Logan’s reliance on Alliance to Save the Mattaponi v. U.S. Army Corps of Eng’rs (“Alliance I”), 515 F.Supp.2d 1 (D.D.C.2007), as support for its argument that EPA changed positions in 2011 and that its decision should be subject to heightened scrutiny is also misplaced. See Pl.’s Mot. at 44 n.32. Although that court found under the facts of that case that EPA’s decision to forego the exercise of its veto authority was a final decision for purposes of the APA and was therefore subject to judicial review, Alliance I, 515 F.Supp.2d at 8-9, that decision predated the opinion of the Court of Appeals in this case, and in any event, it does not automatically follow that a later veto will reflect a change in position in every case.

In sum, EPA’s decision in 2011 to veto the Corps’ specification of Pigeonroost Branch and Oldhouse Branch as disposal sites was not an abrupt or unexplained “about-face” from an earlier decision. The record demonstrates that EPA harbored consistent misgivings throughout the permit application process, and those concerns ultimately led it to exercise its authority. See generally AR010103-201 (Final Determination, explaining that the concerns that underlie the decision to revoke the specification were raised during the permit application process). Thus, the principles of administrative law laid out in “change in policy” cases are not implicated here, and the Court finds that EPA need not justify its revocation decision with on substantial new information in this case.

B. EPA is entitled to deference with respect to its conclusion that the section 404 discharges would have unacceptable adverse effects on the wildlife within the fill site.

Mingo Logan next argues that section V.C. of the Final Determination cannot support EPA’s decision to revoke the specification of Pigeonroost Branch and Oldhouse Branch as disposal sites in its section 404 permit because EPA did not demonstrate that the discharge of dredged or fill material into those streams would cause “unacceptable” adverse effects to wildlife. Pl.’s Mot. at 49. According to Mingo Logan, the effects identified are either “utterly routine” because they occur any time fill is placed in a stream or “entirely speculative.” Id. at 50; see also PL’s Reply at 25; PL’s Supp. at 10.

EPA’s authority to veto the specification of a disposal site under section 404(c) is triggered “whenever [the Administrator] determines ... that the [proposed] discharge^] of such materials into such area will have an unacceptable adverse effect on municipal water supplies, shellfish beds and fishery areas (including spawning and breeding areas), wildlife, or recreational areas.” 33 U.S.C. § 1344(c). The statute does not define what would constitute an “unacceptable adverse effect,” see id. but EPA’s section 404(c) implementing regulations explain that the phrase “means impact on an aquatic or wetland ecosystem which is likely to result in significant degradation of municipal water supplies (including surface or ground water) or significant loss of or damage to fisheries, shellfishing, or wildlife habitat or recreation areas.” 40 C.F.R. § 231.2(e). The 1979 preamble to those regulations adds that “[t]he term ‘unacceptable’ in EPA’s view refers to the significance of the adverse effect — e.g. is it a large impact and is it one that the aquatic and wetland ecosystem cannot afford.” 44 Fed.Reg. at 58,078.

Here, EPA explained in section V.C. of the Final Determination that the proposed discharges of dredged and fill material into Pigeonroost Branch and Oldhouse Branch would have unacceptable adverse effects on the wildlife itself within the footprint of the proposed fill site — specifically salamanders, macroinvertebrates, fish, and the Louisiana Waterthrush — as well as on the habitat that ■ wildlife needs to survive. AR010149-52; see also Def.’s Mot. at 33 (arguing that Mingo Logan ignores that the Final Determination also addressed how discharges would cause a “loss of habitat, which is a critical factor under EPA’s regulations”). It explained that the proposed discharges would destroy “ ‘6.6 miles of high quality stream habitat,’ which represents 5.6 percent of the total stream length' in the Headwaters Spruce Fork sub-watershed ‘where there is little remaining high quality stream habitat,’ ” and that destruction of this habitat would cause “ ‘a loss of regional biodiversity and the broader ecosystem functions’ ” that the otherwise,diverse wildlife would have provided if their habitat was not destroyed. Def.’s Mot. at 32, quoting AR010149. EPA explained that even if the burial of wildlife may be deemed to be acceptable in some other location, the eradication of wildlife within the 6.6 miles of affected streams here was unacceptable because Pigeonroost Branch and Oldhouse Branch are occupied by such a large number and wide variety of species, AR010151-52 (“Within the streams and riparian areas of the project area, over 84 taxa of macroin-vertebrates are documented to exist, as well as up to 46 species of reptiles and amphibians, 4 species of crayfish, 5 species of fish and at least one water-dependent bird species.”), and the “streams are some of the last, rare and important high quality streams in the watershed.” AR010152. The agency also pointed to the sheer size of the proposed fills, AR010149, and to the fact that in its judgment, the mitigation measures called for in the section 404 permit would not effectively offset the adverse effects of the discharges. AR010180-92. When viewed in combination, these considerations prompted EPA to conclude that the eradication of the wildlife and habitat within the footprint of the proposed disposal sites was unacceptable because “the overall impact of the [proposed section 404] discharges ‘is one the aquatic ecosystem cannot afford.’ ” Def.’s Mot. at 32, quoting AR0101052.

At the outset, the Court must recognize that EPA’s analysis of the effects of the section 404 discharges and its conclusion that those effects are unacceptable are entitled to deference. Fox, 556 U.S. at 513-14, 129 S.Ct. 1800 (citations omitted) (“We have made clear ... that ‘a court is not to substitute its judgment for that of the agency,’ and should ‘uphold a decision of less than ideal clarity if the agency’s path may reasonably be discerned.’ ”); Bowman Transp., Inc., 419 U.S. at 285, 95 S.Ct. 438; Alliance to Save the Mattaponi v. U.S. Army Corps of Eng’rs (“Alliance II ”), 606 F.Supp.2d 121, 127 (D.D.C.2009) (“[W]hen an agency’s action relies on scientific and technical information touching upon the agency’s area of expertise, a court is particularly deferential.”). Congress entrusted EPA with the task of protecting the environment, and the Court should not substitute its judgment for EPA’s. As long as EPA’s conclusion that discharge of dredged and fill material would have an unacceptable adverse effect on wildlife within the fill site is reasonable and supported by the record, the Court must defer and the Final Determination is valid. State Farm, 463 U.S. at 43, 103 S.Ct. 2856; Alliance II, 606 F.Supp.2d at 127, quoting Citizens to Preserve Overton Park, 401 U.S. at 416, 91 S.Ct. 814 (“The court must ... conduct a ‘searching and careful’ review of the record to establish that the agency’s decision is rational and based on consideration of all relevant factors.”).

Applying those principles here, the Court finds that EPA’s discussion in section V.C. demonstrates that it “examine[d] the relevant data,” and it “articulate[d] a satisfactory explanation for its action including a ‘rational connection between the facts found and the choice made.’ ” State Farm, 463 U.S. at 43, 103 S.Ct. 2856, quoting Burlington Truck Lines v. United States, 371 U.S. 156, 168, 83 S.Ct. 239, 9 L.Ed.2d 207 (1962). As a result, EPA’s conclusion in section V.C. that the proposed section 404 discharges would have unacceptable adverse effects on the wildlife is reasonable and supported by the record, see AR010149-52, and section V.C. therefore supports the Final Determination.

Mingo Logan’s arguments do not warrant a contrary conclusion. First, its contention that the eradication of wildlife within in a fill site is “routine” because it occurs whenever fill material is discharged into the water and is an effect that Congress approved when it found that the discharge of fill was permissible under the CWA and SCMRA, July 30 Hr’g Tr. at 26, does not demonstrate that EPA’s decision here was unreasonable. First, that argument ignores the fact that Congress built the environmental effect veto right into the same statute. And second, section V.C. lists several grounds — such as the fact that Pigeonroost Branch and Oldhouse Branch are some of the last, least-disturbed high-quality streams in the subwatershed and the sheer magnitude of the project — that adequately explain why EPA is adopting a difference stance here than it might take in another case. See AR010114 (noting that EPA did not revoke the specification of the third disposal site because some of the discharges had already occurred, and because the stream resources there had a higher historic and ongoing human disturbance than Pigeonroost and Oldhouse Branches); AR010115 (noting that construction of the mine will bury almost all of Oldhouse Branch and most of Pigeonroost Branch).

Mingo Logan’s second ground for why the Court should find EPA’s conclusion in section V.C. to be unreasonable— that it is entirely speculative — fares no better. See Pl.’s Mot. at 51-53; PL’s Reply at 23-24. The parties dispute whether certain fish live within the fill site, and they both point to different studies to support their positions. See PL’s Mot. at 51-52; PL’s Reply at 24; Def.’s Mot. at 35-36; Def.’s Reply Mem. in Supp. of Def.’s Mot. (“Def.’s Reply”) at 11-12 [Dkt # 72], But this is precisely the type of dispute that courts are supposed to avoid under the principles of administrative law; where there are questions of science, such as which study deserves more credence than another, the agency is entitled to deference. State Farm, 463 U.S. at 43, 103 S.Ct. 2856 (explaining that the Court “is not to substitute its judgment for that of the agency”); Alliance II, 606 F.Supp.2d at 127-28, quoting Occidental Eng’g Co., 753 F.2d at 769-70 (“[I]t is the role of the agency to resolve factual issues to arrive at a decision that is supported by the administrative record, whereas ‘the function of the district court is to determine whether or not as a matter of law the evidence in the administrative record permitted the agency to make the decision it did.’ ”). As a result, the Court cannot find that EPA’s conclusions in section V.C. are unreasonable even though Mingo Logan advances some studies that support a contrary position. See Ohio Valley Envtl. Coal. v. Aracoma Coal Co., 556 F.3d 177, 201 (4th Cir.2009), quoting Marsh v. Or. Natural Res. Council, 490 U.S. 360, 378, 109 S.Ct. 1851, 104 L.Ed.2d 377 (1989) (“When presented with conflicting evidence, courts must generally defer to the agency evaluation because ‘an agency must have discretion to rely on the reasonable opinions of its own qualified experts even if, as an original matter, a court might find contrary views more persuasive.”); Alameda Water & Sanitation Dist. v. Reilly, 930 F.Supp. 486, 493 (D.Colo.1996) (“It is important in this regard to recognize the limitations on this court’s authority in an APA review. The plaintiffs have made a strong case that their substitutions are adequate but they have not presented a sufficient showing to require a finding that the contrary analysis made by the EPA was arbitrary and capricious.”). Moreover, EPA relies on other studies concerning salamanders and other species beyond the disputed fish. See, e.g., Notice of Substantial New Information [Dkt. # 104].

Finally, there is no support for the argument that EPA cannot rest the Final Determination on a loss of habitat. Pl.’s Reply at 26. EPA’s regulations define “unacceptable adverse effects” to require the agency to consider the overall impact on the aquatic ecosystem, not just the particular species of wildlife that will be destroyed by the placement of the fill. And the regulations specifically state that EPA should consider effects on habitat. See 40 C.F.R. § 231.2(e) (defining unacceptable adverse effects to include “impact[s] on an aquatic or wetland ecosystem which is likely to result in ... significant loss of or damage to ... wildlife habitat”). Section 404(c) does not define “unacceptable adverse effects,” and as the implementing agency, it was within the purview of EPA to define that phrase. See 33 U.S.C. § 1344(c); Chevron U.SA. Inc. v. Natural Res. Def. Council, Inc., 467 U.S. 837, 844, 104 S.Ct. 2778, 81 L.Ed.2d 694 (1984) (citation and footnote omitted) (“We have long recognized that considerable weight should be accorded to an executive department’s Construction of a statutory scheme it is entrusted to administer, and the principle of deference to administrative interpretations has been consistently followed by this Court....”). Mingo Logan does not challenge the definition as unreasonable or contrary to the statute, and the Court finds it to be a reasonable construction of the statute. As a result, the Court must defer to EPA’s decision that an analysis of whether a discharge will have unacceptable adverse effects on the environment requires not only a focused assessment of how individual species will be affected, but also a consideration of the larger picture: the relationship between the destruction of habitat and the wildlife that depends on that habitat. Natural Res. Def. Council v. EPA, 706 F.3d 428, 431 (D.C.Cir.2013), quoting Chevron, 467 U.S. at 843, 104 S.Ct. 2778 (“If the ‘statute is silent or ambiguous with respect to the specific issue,’ ... we move to the second step and defer to the agency’s interpretation as long as it is ‘based on a permissible construction of the statute.” ’). And EPA cited several studies to support its contention that the destruction of habitat in conjunction with the loss of wildlife within the footprint of the fill was something that the ecosystem could not afford. See AR010149-52. The Court therefore finds that EPA has met its burden to show its determination that the proposed section 404 discharges would have unacceptable adverse effects on wildlife within the footprint of the fill sites was reasonable.

C. EPA considered the mitigation re-. quirements in Mingo Logan’s section 404 permit and its conclusion that they were insufficient is entitled to deference.

Mingo Logan’s final challenge to section V.C. is that EPA is required to consider the mitigation requirements imposed by the permit when conducting its section 404(c) adverse effects analysis, and that EPA was judicially estopped from challenging the sufficiency of the mitigation measures in place here. Pl.’s Mot. at 53-68; Pl.’s Reply at 26-29; PL’s Supp. at 3, • 10. Mingo Logan also argues that, to the extent that EPA is not judicially estopped from questioning the adequacy of the mitigation requirements in the permit, EPA’s evaluation of those measures was flawed. PL’s Mot. at 57-58; PL’s Reply at 27-29.

The Court agrees that EPA was bound to consider the mitigation requirements in Mingo Logan’s section 404 permit' in this case. In State Farm, the Supreme Court explained that an agency’s action is arbitrary and capricious if it fails to take into account “an important aspect of the problem.” 463 U.S. at 43, 103 S.Ct. 2856. And EPA’s own regulation instructs that, “[i]n evaluating the unacceptability of such impacts, consideration should be given to the relevant portions of the section 404(b)(1) guidelines,” 40 C.F.R. § 231.2(e), which specifically includes consideration of potential mitigation. See, e.g., 40 C.F.R. § 230.1 et seq. Where EPA acts after a permit issues and the permit itself includes mitigation measures, then mitigation becomes an important aspect of the discharge issue, and the provisions in the permit dealing with mitigation are plainly relevant to EPA’s analysis of the impact of the discharges. Accordingly, EPA was required to consider the mitigation requirements in Mingo Logan’s section 404 permit when deciding whether the proposed discharges would have unacceptable adverse effects.

But the record reveals that EPA did in fact consider the permit’s mitigation requirements in the Final Determination, and it found them insufficient to overcome the unacceptable adverse effects denoted in section V.C (and section V.D.). See AR010185-92. EPA provided a detailed explanation for why it believed the mitigation to be insufficient, which shows that it considered relevant data and linked its conclusions to the facts in the record. See AR010188-91; see also infra. EPA’s conclusion regarding Mingo Logan’s mitigation measures, which turns on scientific predictions within EPA’s expertise, is therefore entitled to deference. See Amoco Oil Co. v. EPA, 501 F.2d 722, 741 (D.C.Cir.1974) (“Where [EPA’s] regulations turn ... on predictions dealing with matters on the frontiers of scientific knowledge, we will demand adequate reasons and explanations but not ‘findings’ of the sort familiar from the world of adjudication.”).

Mingo Logan’s remaining arguments do not alter that conclusion. First, Mingo Logan contends that because the United States defended similar mitigation requirements in Ohio Valley Environmental Coalition v. Aracoma Coal Co., 556 F.3d at 177, EPA is judicially estopped from challenging the adequacy of those requirements here. Although “[c]ourts may invoke judicial estoppel ‘[w]here a party assumes a certain position in a legal proceeding, ... succeeds in maintaining that position, ... [and then,] simply because his interests have changed, assume[s] a contrary position,” Comcast Corp. v. FCC, 600 F.3d 642, 647 (D.C.Cir.2010) (first alteration added), quoting New Hampshire v. Maine, 532 U.S. 742, 749, 121 S.Ct. 1808, 149 L.Ed.2d 968 (2001), that principle is inapplicable in this case. Judicial estoppel is a fact-intensive inquiry and any difference between the stance the United States took in Ohio Valley and the one EPA now takes in this case may be explained by reference to the distinct facts of each case.

First of all, in Ohio Valley, it was the Corps — not EPA — that concluded that the mitigation requirements in the permit met the section 404(b)(1) Guidelines and defended those requirements in court. 556 F.3d at 204. But here, it is EPA that is challenging the notion that those mitigation measures are satisfactory, which is precisely what EPA is authorized to do under section 404(c). As a result, while the Fourth Circuit was bound to defer to the Corp in Ohio Valley, the Court in this case must defer to EPA’s position that they are not sufficient in the context of Spruce No. 1 Mine. Moreover, while both cases involve some overlap with certain mitigation requirements, EPA’s position in this case challenges additional issues, such as stream misclassification, not discussed in Ohio Valley. And the challenged permits in Ohio Valley involved discharges unrelated to the Spruce No. 1 Mine that Mingo Logan seeks to operate. See id. at 187.

Second, to the extent that the difference cannot be explained in terms of distinct facts, judicial estoppel is still inappropriate in this cáse. “[I]t is well settled that the Government may not be estopped on the same terms as any other litigant.” Heckler v. Cmty. Health Servs. of Crawford Cnty., 467 U.S. 51, 60, 104 S.Ct. 2218, 81 L.Ed.2d 42 (1984). And the Supreme Court has explained that-judicial estoppel may not apply when “broad interests of public policy may make it important to allow a change of positions that might seem inappropriate as a matter of merely private interests.” Maine, 532 U.S. at 755, 121 S.Ct. 1808 (citation and internal quotation marks omitted). EPA must evaluate changes in scientific knowledge in order to carry out its assigned task of protecting the environment, and its updated decisions may vary from earlier positions. As the agency explained in its motion for summary judgment, “a change in facts and regulatory policy ... occurred subsequent to issuance of the permits at issue in [Ohio Valley].” Def.’s Mot. at 57. This change in policy and facts is memorialized in the Corps — EPA 2008 Mitigation Rule, which rescinded the Regulatory Guidance Letter that the Ohio Valley court relied upon in determining that the mitigation requirements were adequate in that case. 73 Fed.Reg. 19,594 (Apr. 10, 2008); Def.’s Mot. at 57. Although EPA cannot apply the 2008 Mitigation Rule retroactively to Mingo Logan’s 2007 permit, it may rely on “the scientific information ... considered in adopting the Mitigation Rule” to inform its “views concerning the Spruce permit, particularly with regard to the difficulty of creating new streams that replace lost values and functions.” Def.’s Mot. at 57. The Court therefore finds that it would be inappropriate to judicially es-top EPA from challenging the adequacy of the mitigation measures contained in Min-go Logan’s permit.

And third, Mi