Idaho Sporting Congress and the Ecology Center (collectively, “ISC”) appeal the district court’s denial of their motion for a preliminary injunction to prevent the United States Forest Service (“Forest Service”) from proceeding with certain timber sales in the Payette National Forest (“PNF”). ISC claims that the Environmental Assessments and Environmental Impact Statements prepared by the Forest Service in connection with these sales do not comply with the National Environmental Policy Act (“NEPA”), 42 U.S.C. § 4321 et seq., the National Forest Management Act (“NFMA”), 16 U.S.C. § 1600 et seq, and the Forest Service’s own Land Resource Management Plan (“LRMP”) for the PNF. We have jurisdiction pursuant to 28 U.S.C. § 1292(a)(1). Because we find that ISC has raised serious questions and there is a possibility of irreparable harm, we reverse and remand to the district court with instructions to grant a preliminary injunction pending a final determination of the merits of ISC’s claims.
FACTUAL AND PROCEDURAL HISTORY
The Payette National Forest encompasses approximately 2.3 million acres of land in central Idaho. This suit arises out of the Forest Service’s proposal to permit commercial logging in five areas of the forest: Filly Creek, Rubicon, West Pine
After the EAs and EISs for all of the sales except North Round Valley were completed and the sales were approved, we decided Neighbors of Cuddy Mountain v. United States Forest Service,
Following the decision in Neighbors of Cuddy Mountain, ISC filed a lawsuit [referred to hereinafter as “ISC I ”] to block nine additional timber sales in the PNF, including the West Pine Skyline, Filly Creek, Rubicon, Fourmile, and North Round Valley sales. ISC alleged that the Forest Service had failed to comply with the requirements of NFMA and NEPA in preparing the EAs and EISs for these sales, just as it had failed to do so with the Grade/Dukes sale at issue in Cuddy Mountain. The district court denied ISC’s motion for a preliminary injunction. ISC appealed, and we affirmed. See Idaho Sporting Congress v. Alexander,
ISC and the Forest Service subsequently agreed to a settlement. The settlement provided, inter alia, that ISC’s lawsuit would be dismissed without prejudice and that the Forest Service would “complete additional environmental documentation” of the timber sales “in the form of supplemental information reports (SIR’s) that will examine whether further environmental review and documentation is required.” The settlement further provided that the SIRs would be circulated in draft form for public review and comment. The settlement acknowledged the right of ISC to file a new lawsuit challenging the “additional environmental documentation,” but specified that any new suit must be filed within ten calendar days of the date the final SIRs were issued.
The Forest Service completed the SIRs for the five timber sales at issue in this case on May 28, 1999. For each sale, the SIRs found that the original EA or EIS “adequately displayed the effects of the Selected Alternative on the environment” and that “[njothing in the new information demonstrates that the project will affect the quality of the human environment in a significant manner or significant extent not already considered in the underlying documents.” The SIRs all conclude that there is “no need to correct, supplement, or revise the environmental document or the [Forest Service’s] decision.”
On June 7, 1999, ISC filed the present action under the Administrative Procedures Act (“APA”), 5 U.S.C. § 701 et seq., alleging substantive violations of NEPA
On July 12, 1999, the district court denied ISC’s motion for a temporary restraining order. The district court subsequently denied ISC’s motion for reconsideration and for a preliminary injunction. ISC timely filed a notice of appeal pursuant to Ninth Circuit Rule 3-8. On September 30, 1999, we granted ISC’s emergency motion for an injunction pending the resolution of this appeal and stayed any action toward implementing the challenged timber sales.
DISCUSSION
I.
To be entitled to preliminary in-junctive relief, ISC must demonstrate either a combination of probable success on the merits and the possibility of irreparable injury or that serious questions are raised and the balance of the hardships tips in its favor. See Roe v. Anderson,
We review the district court’s denial of ISC’s motion for abuse of discretion. See Bay Area Addiction Research and Treatment, Inc. v. City of Antioch,
II.
ISC argues that preliminary injunctive relief is warranted, because the Forest Service’s original EAs and EISs for the Filly Creek, Rubicon, West Pine Skyline, Fourmile, and North Round Valley timber sales are deficient as a matter of law under our decision in Cuddy Mountain, and because the Forest Service is not permitted under NEPA to use Supplemental Information Reports to correct the deficiencies. ISC contends that the Forest Service must reopen the administrative record and prepare supplemental EAs and EISs before the timber sales can proceed.
The district court agreed with ISC’s first argument, finding that standing alone the Forest Service’s original NEPA documents “clearly fail” to meet the requirements of Cuddy Mountain. However, the court disagreed with ISC as to the proper role of the Forest Service’s SIRs. The district court held that the Forest Service is permitted under NEPA to use a process such as an SIR, instead of a supplemental EA or EIS, to reevaluate an existing EA or EIS. Because ISC did not challenge the substance of the SIRs in its motion for a preliminary injunction, the court concluded that ISC had failed to raise a serious question on the merits.
ISC argues on appeal that the district court’s denial of its motion for a preliminary injunction was based on an erroneous interpretation of NEPA, and therefore an abuse of discretion. For the following reasons, we agree.
A.
Supplemental Information Reports are nowhere mentioned in NEPA or in the
In condoning the use of SIRs, however, we have repeatedly warned that once an agency determines that new information is significant, it must prepare a supplemental EA or EIS; SIRs cannot serve as a substitute. In Price Road, for example, we explained that “if the environmental impacts resulting from the design change are significant or uncertain, as compared with the original design’s impacts, a supplemental EA is required.”
Here, the Forest Service is not using the SIRs wholly for the purpose of evaluating the significance of new information or changed circumstances.
It is inconsistent with NEPA for an agency to use an SIR, rather than a supplemental EA or EIS, to correct this type of lapse. NEPA is a procedural statute, and we have held that “agency action taken without observance of the procedure required by law will be set aside.” Metcalf v. Daley,
non-NEPA procedure, the regulations governing the supplementation of NEPA documents promulgated by the CEQ, as well as the Forest Service’s own rules on the issue, would be superfluous. See, e.g., 40 C.F.R. 1502.9(c)(4) (stating that agencies “[s]hall prepare, circulate, and file a supplement to a[n environmental impact] statement in the same fashion ... as a draft or final statement” (emphasis added)); Forest Service Handbook 1909.15 Chs. 20, 40 (detailing procedures to be followed when preparing EAs and EISs); see also Oregon Envtl. Council v. Kunz-man,
Compliance with NEPA’s procedures is not an end unto itself. Rather, as the Supreme Court has explained, it is through NEPA’s “action forcing” procedures that “[t]he sweeping policy goals announced in § 101 of NEPA are ... realized.” Robertson v. Methoio Valley Citizens Council,
The SIRs at issue in this case do not satisfy these timing requirements. The Forest Service did not compile the information and analysis presented in the SIRs “at the earliest possible time.” The record indicates that the SIRs were prepared in response to litigation, years after the original decisions to approve the timber sales were made. Furthermore, although the public was given an opportunity to comment on the SIRs, the Forest Service’s decision making process was not formally reopened and no administrative appeal of the SIRs was permitted. The SIRs therefore do not remedy the fact that at the time the Forest Service originally approved the timber sales, it did not have available all the information and analysis our decision in Cuddy Mountain says it was required to consider. Cf. Metcalf,
Our decision in Half Moon Bay Fishermans’ Marketing Ass’n v. Carlucci,
The Forest Service asserts that our decision in Half Moon Bay demonstrates that an inadequate EIS may be supplemented by a procedure other than a supplemental EA or EIS. Unlike the SIRs in this case, however, the EPA report in Half Moon Bay was produced before the Corps of Engineers had issued its final decision, and we found that the Corps of Engineers had considered the EPA’s suggestions in making its decision. See id. Thus, in Half Moon Bay, the agency’s decision maker had all of the required information at the time a final decision on the challenged project was made. See id. Our decision in Half Moon Bay provides no support for the Forest Service’s post-hoc use of the SIRs in this case.
B.
The Forest Service argues that even if the use of SIRs to supplement EAs and EISs is generally not acceptable under NEPA, ISC should not be permitted to challenge the Forest Service’s use of the SIRs in this case because ISC stipulated to this use when it agreed to settle ISC I. In making this argument, the Forest Service relies on the language in the parties’ settlement agreement specifying that the Forest Service would complete additional environmental documentation of the timber sales “in the form of supplemental information reports (SIR’s).”
We agree with the Forest Service that the propriety of its use of the SIRs in this case may be affected by the settlement agreement in ISC I. However, the distinct court did not deny ISC’s motion for a preliminary injunction on the basis of the
III.
Finally, the government argues that the district court’s denial of preliminary injunctive relief should be upheld regardless of the merits of ISC’s claims because ISC has failed to demonstrate the possibility of irreparable harm or that the balance of hardships tips decidedly in its favor. We disagree.
The Supreme Court has rejected a presumption of irreparable injury when an agency fails to evaluate thoroughly the environmental impact of a proposed action. See Amoco Prod. Co. v. Village of Gambell,
Such is the case here. The Forest Service has admitted in its brief that at the time we granted ISC’s motion for an injunction pending appeal, logging activities were occurring at Filly Creek and could have begun soon at Rubicon and Fourmile. Additionally, the SIR for the West Pine Skyline timber sale reveals that logging at that site is already at least 75% complete. This evidence of environmental harm is sufficient to tip the balance in favor of injunctive relief. Although the record indicates that a preliminary injunction could present a financial hardship to the Forest Service, the appellee-intervenors, and the communities in and around the PNF, this possible financial hardship is outweighed by the fact “[t]he old growth forests plaintiffs seek to protect would, if cut, take hundreds of years to reproduce.” Cuddy Mountain,
CONCLUSION
Because ISC has raised serious questions regarding the Forest Service’s use of Supplemental Information Reports to comply with our decision in Cuddy Mountain, and there is a possibility of irreparable environmental harm, the district court should have granted ISC’s motion for a preliminary injunction. The denial of ISC’s motion was an abuse of discretion. Accordingly, we REVERSE and REMAND with instructions to grant a preliminary injunction pending a final determination of the merits of ISC’s claims. On remand, the district court may consider whether parties can stipulate to the use of SIRs to supplement NEPA documents, and whether ISC and the Forest Service did in fact do so in their agreement settling ISC I.
REVERSED and REMANDED.
Notes
. The final EIS and Record of Decision for the North Round Valley sale were issued in July 1998, four months after our decision in Cuddy Mountain.
. NEPA imposes on federal agencies a continuing duty to supplement existing EAs and EISs in response to “significant new circumstances or information relevant to environmental concerns and bearing on the proposed action or its impacts.” 40 C.F.R. § 1509(c)(l)(ii); see also Marsh v. Oregon Natural Resources Council,
. The Forest Service's SIRs are devoted in part to discussing information that is truly new. For example, the SIR for the Fourmile timber sale discusses the proposed listing of the northern Idaho ground squirrel and the Canadian lynx under the Endangered Species Act. The SIR also discusses the listing of the bull trout as threatened. An SIR is the appro
. The PNF’s LRMP divides the forest for environmental evaluation purposes into “theoretical pileated woodpecker home range[s],” each of which is approximately 10 miles in diameter. See Neighbors of Cuddy Mountain,
