Mount St. Helens Long-Term Sediment Management Plan

Transcription

1 Mount St. Helens Long-Term Sediment Management Plan Revised Draft Supplemental Environmental Impact Statement September 2017 Sediment retention structure and upstream sediment plain on the North Fork Toutle River U.S. Army Corps of Engineers photo

2 Appendix C: Scoping Summary

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4 Scoping Summary Scoping is the initial stage of the EIS process used to identify issues, alternatives, and impacts to be addressed in the NEPA analysis. Public comments were accepted from the date of publication of the Notice of Intent on December 21, 2012 (Attachment 1) until April 6, Two public meetings were held in Kelso and Toutle, Washington on March 6 and 13, 2013, respectively. The announcement for the public scoping meetings is included in Attachment 2. Forty-four people attended the public scoping meetings. USACE staff provided a brief presentation to give participants an understanding of the proposed alternatives and how the SEIS process will be used by the USACE to select an alternative, with specific attention to how and when the public may provide input. Participants were engaged in a question/answer-session with USACE staff and were asked to submit written comments either at the meeting or at a later date through the mail or . Comments received indicated that the public were generally concerned with fish and fish habitat, visual impacts, cultural resources, endangered species, wildlife and habitat (including elk and the MSH Wildlife Area managed by WDFW), flood-risk management, hydrology and water quality, placement of dredged sediments, effects analysis, alternatives, presentation of analysis results, and finances. In general, all alternatives received a similar level of public support. The comments received are included in Attachment 3. The USACE reviewed and considered all these comments as part of determining the scope of the analysis presented in this SEIS. An increased focus was placed on inventory and analysis to resources identified during the scoping process.

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6 Notice of Intent

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8 [Federal Register Volume 77, Number 246 (Friday, December 21, 2012)] [Notices] [Page 75622] From the Federal Register Online via the Government Printing Office [ [FR Doc No: ] DEPARTMENT OF DEFENSE Department of the Army; Corps of Engineers Intent To Prepare a Draft Supplemental Environmental Impact Statement for Development of a Long- Term Sediment Management Plan of the Mount St. Helens Sediment Retention Structure in the North Fork Toutle River AGENCY: Department of the Army, U.S. Army Corps of Engineers, DOD. ACTION: Notice of intent SUMMARY The U.S. Army Corps of Engineers, Portland District, intends to prepare a Draft Supplemental Environmental Impact Statement (DSEIS) to assess impacts associated with alternatives for the longterm management of the existing Mount St. Helens (MSH) Sediment Retention Structure (SRS) located at river mile 13.2 of the North Fork Toutle River. The MSH SRS is a single-purpose structure constructed in to trap and control downstream movement of volcanic sediments eroding from the debris avalanche of Mount St. Helens. The purpose of the long-term management of the existing MSH SRS is to continue to provide flood damage reduction benefits to downstream communities along the Cowlitz River including Longview, Kelso, Castle Rock, and Lexington, Washington. DATES A Draft Supplemental Environmental Impact Statement is expected to be available for public review and comment in FOR FURTHER INFORMATION CONTACT Mr. Tim Kuhn, at the U.S. Army Corps of Engineers, Portland District, P.O. Box 2946, Portland, OR 97204, by phone at or Timothy.s.kuhn@usace.army.mil. SUPPLEMENTARY INFORMATION Announcement is made by the U.S. Army Corps of Engineers, Portland District (Corps), that a DSEIS will be developed to address environmental changes that have occurred since the original EIS was published in December The Water Resources Development Act of 2000, Section 339, authorized the Corps to maintain the flood damage reduction benefits through the end of the Mount St. Helens project planning period, which is The originally authorized work is described in the October 1985 report of the Chief of Engineers titled, Mount St. Helens, Washington, Decision Document (Toutle, Cowlitz, and Columbia Rivers), published as House Document No. 135, 99th Congress. Continued work

9 on the Mount St. Helens project will be accomplished under the existing open construction project that was authorized in August The State of Washington is the non-federal sponsor of the project, and cost-sharing requirements are outlined in a 1986 Local Cooperation Agreement between the Department of the Army and State of Washington and Cowlitz County diking districts. Scoping Process a. The Corps of Engineers invites affected Federal, State, and local agencies, Native American tribes, and other interested organizations and individuals to participate in the development of the DSEIS. The Corps of Engineers anticipates conducting a public scoping meeting for this DSEIS in early The exact date, time, and location of this meeting have not yet been determined. This information will be publicized once the meeting arrangements have been made. The Corps will provide notice to the public of additional opportunities for public input on the SEIS during review periods for the draft and final SEIS. b. Significant issues to be analyzed in depth in the DSEIS include alternatives for managing estimated volumes of sediment (sediment decay rate), potential impacts to fish and wildlife, and potential impacts to tributaries of the North Fork Toutle River, associated wetlands, and potential impacts to downstream waterways including the Cowlitz River. c. The Corps will serve as the lead Federal agency in preparation of the DSEIS. The Corps intends to coordinate and/or consult with Federal and State agencies, as well as interested Native American Tribes during the scoping and preparation of the DSEIS. A decision will be made during the scoping process whether other agencies and/or Tribes will serve in an official role as Cooperating Agencies. Dated: December 7, John W. Eisenhauer, Colonel, Corps of Engineers, District Commander. [FR Doc Filed ; 8:45 am] BILLING CODE P

10 Scoping Meeting Announcement

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12 Corps Seeks comments for Mount St. Helens Environmental Impact Statement, Hosts Public Meetings Posted 2/26/2013 Release no Contact: Diana Fredlund PORTLAND, Ore. - The U.S. Army Corps of Engineers is beginning the scoping process for a supplemental Environmental Impact Statement on its Mount St. Helens long-term sediment management program. The public is invited to comment on the scope of the Supplemental Environmental Impact until April 6, The Portland District is planning its long-term management of the Mount St. Helens Sediment Retention Structure through the year The purpose and need for the SRS is to maintain flood-risk protection at specified levels for the cities of Castle Rock, Lexington, Kelso and Longview, Wash. Scoping is the initial stage of the SEIS process, which is used to identify issues, alternatives and impacts to be addressed in the National Environmental Policy Act analysis. The four proposed alternative plans will be presented at the scoping meetings and the public will be asked to provide written comments. The Corps is hosting two public meetings, March 6 in Kelso, Wash., and March 13 in Toutle, Wash. Wednesday, March 6, :30 p.m. Cowlitz Regional Conference Center th Ave. Longview, Wash. Wed., March 13, :30 p.m Toutle High School 5050 Spirit Lake Memorial Hwy. Toutle, Wash. Each meeting will include a brief presentation, display materials and an opportunity to ask questions of members of the SEIS team. Mount St. Helens erupted May 18, 1980, blasting more than 3 billion cubic yards of volcanic ash and debris 14 miles into the sky and thundering down the mountain in an immense landslide of mud and rock. Congress assigned the Portland District the responsibility and authority to find long-term solutions to manage the continuing flow of sediment and reduce flooding.

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14 Attachment 3: Scoping Comments

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