US Army Corps of Engineers
Walla Walla District Website


 

About Us

Environmental Compliance provides extremely broad support to all of the district’s civil works federal actions and programs in three functional areas: environmental sciences as well as compliance with federal biological compliance laws (Biological Resources Team) and general environmental compliance (Environmental Resources Team) laws. Our two functional teams conduct roughly 400 environmental effect analysis determinations and appropriate documentation annually under the National Environmental Policy Act and the Endangered Species Act, amongst numerous other environmental laws and Executive Orders.

We consult with the state, federal and tribal environmental regulatory and natural resources management agencies on federal actions where there are interests external to the Corps and ensure the Corps meets requirements for consultation.

Geographic Expansion of Watercraft Inspection Stations FONSI and EA

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The U.S. Army Corps of Engineers, Walla Walla District, (Corps) invites public comments on the draft Finding of No Significant Impact (FONSI) and Supplemental Environmental Assessment (SEA) for geographic expansion to include Nevada and Wyoming in Federal Participation in Watercraft Inspection Stations and Rapid Response Actions to Protect the Columbia River Basin.  In the current program, the Corps cost-shares with Oregon, Washington, Idaho, and Montana.

The Corps is now considering sharing costs with the states of Nevada and Wyoming for watercraft inspection stations, invasive species monitoring, and rapid response planning.  These actions are needed to delay zebra and quagga mussel infestations in the Columbia River Basin (CRB), as well as across Nevada and Wyoming.  The proposed action is needed because the risk of water bodies in the CRB being infected is high and the introduction of zebra or quagga mussels has the potential to cause billions of dollars in economic damage and substantial damage to the ecosystem and the species dependent upon it.

The 30-day comment period is open from June 5, 2020 until July 6, 2020.  All information and comments submitted will be included in the permanent public record.

Electronic comments may be filed directly online at http://www.nww.usace.army.mil/EnvironmentalComplianceComment/ or via email to NEPANWW@usace.army.mil, inserting “Geographic Expansion SEA” in the subject line.

You may also mail comments to:

U.S. Army Corps of Engineers, Walla Walla District
CENWW-PPL-C – Geographic Expansion SEA
201 North 3rd Avenue
Walla Walla, WA  99362-1876

If you have any questions or need additional information, please contact Mr. John Hook, Environmental Resource Specialist, at 509-527-7239.

Lucky Peak Lake View Trail FONSI and EA

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The U.S. Army Corps of Engineers, Walla Walla District (Corps) invites your comments on the draft Finding of No Significant Impact (FONSI) and Environmental Assessment (EA) for the Lake View Recreation Trail at Lucky Peak Dam and Lake, Boise, Idaho.

The Corps is proposing to construct a 15 mile multiple use trail for bike and pedestrian traffic along Lucky Peak Lake’s southern shoreline from Lucky Peak Dam to the Chimney Rock park area. The trail would allow increased access to recreational opportunities that include hiking, hunting, biking, wildlife viewing and access to the waterside campgrounds. Southwest Idaho Mountain Bike Association, a non-profit organization, would provide volunteer labor and equipment for construction of the proposed trail. The trail would be managed by the Corps.

The draft FONSI and EA are available in electronic form through the Corps website at: www.nww.usace.army.mil/Missions/Environmental-Compliance/. Comments will be accepted from May 22through June 21. All information and comments submitted will be included in the permanent public record.

Electronic comments may be filed directly online at: http://www.nww.usace.army.mil/EnvironmentalComplianceComment/ or via email to NEPANWW@usace.army.mil, inserting “LP Trail EA” in the subject line.

You may also mail comments to:
U.S. Army Corps of Engineers, Walla Walla District,
ATTN: CENWW-PPL-C - LP Trail EA,
201 North 3rd Avenue,
Walla Walla, WA 99362-1876.

If you have any questions or need additional information, please contact Mr. Ben Morris, Environmental Resource Specialist, at 509-527-7294.

Juliaetta 595 Draft FONSI

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The U.S. Army Corps of Engineers, Walla Walla District (Corps), proposes to assist the City of Juliaetta, Idaho (City) with funding to design and replace a broken water main under the Potlatch River, using directional drilling and cast in-place methodology.  The Corps and the City have agreed the Corps would provide $250,000 in funding for design, replacement and construction inspection of the water main.  The Corps participation in this project is authorized under Section 595 of the Water Resources Development Act of 1999.

Ice Harbor Master Plan Revision and Environmental Assessment

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The U.S. Army Corps of Engineers, Walla Walla District (Corps), plans to revise the 1977 Ice Harbor Master Plan and prepare an accompanying Environmental Assessment.  The Master Plan guides how the Corps manages Ice Harbor project lands surrounding Lake Sacajawea behind Ice Harbor Dam.  It is a conceptual document that focuses on management and development of the natural, cultural, and recreational resources on the Corps lands for the next 20 years.  It does not address dam operations (e.g., spill, fish passage, or dam breaching), flood risk management (e.g., levees), or navigation.  The Corps is revising the existing 43-year-old Master Plan because Corps land management regulations have changed, and because the existing plan may not meet current or future needs of the public or the project resources. 

As part of the Master Plan process, the Corps is also preparing an Environmental Assessment (EA).  The EA will identify and evaluate the environmental effects of a range of alternatives for future management of Ice Harbor lands, including the No Action Alternative (No Change in Current Management).

The Master Plan revision and EA preparation are now in the scoping phase.  This is the public’s opportunity to tell the Corps how they use the public lands surrounding Lake Sacajawea and how they would like to see the lands managed in the future.  The public can also tell the Corps what alternatives should be considered and what environmental issues or concerns should be addressed in the EA.

The Corps will be accepting scoping comments for the Master Plan revision and EA from May 1 through June 15, 2020.  Information on how to submit comments is provided on the Ice Harbor Master Plan web page.  Comments can be submitted through several means, including a link on the Master Plan web page.  Additional information about Ice Harbor project and the Master Plan update can be found on the Master Plan webpage

Mill Creek Flood Risk Management General Investigation Study

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*** Public Comment Period extended to Feb. 28 ***

WALLA WALLA, Wash. – The U.S. Army Corps of Engineers, Walla Walla District, invites public comments on the draft Finding of No Significant Impact (FONSI) and Integrated Feasibility Study and Environmental Assessment Report (FR/EA) for the Mill Creek Flood Risk Management General Investigation Study, Walla Walla, Washington. 

The Corps and the non-Federal Sponsor, Mill Creek Flood Control Zone District (Walla Walla County), are conducting the study to address the flood risks Mill Creek presents to the community of Walla Walla, Washington, and other communities within the Mill Creek watershed (adjacent lands).  This draft FR/EA documents the results of the feasibility study and environmental compliance processes.  It presents the process, analysis, results, and preliminary conclusions of the investigations and analysis performed to evaluate potential improvements to the existing Mill Creek Flood Control Project (MCFCP or Project).

The public comment period will begin on January 15, 2020 and conclude thirty days later on February 14, 2020.  Public comments may be submitted electronically to the Corps using the online comment form on the Environmental Compliance webpage, or via email NEPANWW@usace.army.mil -- type “Mill Creek GI” in the subject line. Comments must be postmarked or e-mailed no later than February 14, 2020 to be considered as part of the public record.  Comments should be mailed to:

U.S. Army Corps of Engineers, Walla Walla District
ATTN: CENWW_PPL-C, Mill Creek Study 
201 North 3rd Ave.
Walla Walla, WA 99362-1876

 

A public meeting is planned for Wednesday, February 12, 2020 at 5:30 p.m. at the Courtyard by Marriott, 550 West Rose Street in Walla Walla, Washington.  At this meeting, the Corps will give a presentation, conduct a question and answer session, and accept written comments from interested parties.

The draft FONSI and FR/EA are available in electronic form through the Corps’ website at https://www.nww.usace.army.mil/Missions/Environmental-Compliance/

If you have questions, please write or e-mail the Corps at the addresses above, or call the project Environmental Compliance Specialist at 509-527-7256.

Ice Harbor navigation lock upstream floating guidewall cables repair

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Ice Harbor Floating Guidewall Cable Repair Update April 20, 2020

The U.S. Army Corps of Engineers’ Walla Walla District (Corps) has temporarily halted its repair of the cable anchoring system used for the Ice Harbor Dam navigation lock upstream gate floating guidewall.  The steel cables have deteriorated and need to be replaced.  The Corps was able to replace the set of cables attached to the shoreline anchor block during the in-water work window that ended in early 2020.  However, because of COVID-19 concerns, the Corps was unable to complete the dredging needed to access the anchor block on the river bottom.  The Corps proposes to complete the dredging within the winter in-water work window of December 15, 2020 through February 28, 2021 and attach the remaining cables.

The Corps issued a Public Notice for this project on December 12, 2019 and the public comment period closed January 13, 2020.  The Corps prepared a Statement of Findings documenting the results of its environmental analysis and its decision to implement the project.  The Statement of Findings was signed February 12, 2020.

For additional information, contact Ms. Sandra Shelin, Environmental Resource Specialist, at 509-527-7265.

 

Heise-Roberts Levee System Repair

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The U.S. Army Corps of Engineers, Walla Walla District (Corps) proposes to repair three sections of the Heise-Roberts Levee System along the Snake River in Jefferson County, Idaho.  The levees were damaged by sustained high flows during the 2019 flood season.

In compliance with the National Environmental Policy Act, the Corps prepared an Environmental Assessment (EA) to evaluate what the potential effects on environmental resources would be when repairing the levees.  The EA evaluated two alternatives, the No Action Alternative and the Proposed Action Alternative (repair the levees to the as-was condition).  The analysis concluded that there would be no significant adverse effects to any of the resources from implementation of the Proposed Action Alternative.   Therefore, a Finding of No Significant Impact was signed by the Corps Commander on October 31, 2019.  Repair of the damaged sites is scheduled to begin in mid-November 2019 and take about six weeks to complete.

Boyer Park Marina Dock Replacement Project

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*****Update: This comment period is now closed*****

The U.S. Army Corps of Engineers’ Walla Walla District (Corps) is seeking input on the Draft Finding of No Significant Impact (FONSI) and Environmental Assessment (EA) for the Boyer Park Dock Replacement Project.

The project proposes to approve a request from the Port of Whitman County to complete a series of improvements on lands leased from the Corps in Boyer Park and Marina, including the repair, realignment, and replacement of docking facilities in the marina, as well as associated upland improvements.

The purpose of the proposed action is to repair and upgrade the existing moorage and facilities in the marina to ensure continued safe recreational boating support services. The proposed action is needed because existing facilities in the marina are deteriorating and pose a risk to marina users as well as the environment. Additionally, marina facilities, including those for potable water and electricity, are approaching the end of their planned lifespan and no longer provide an acceptable level of service.

The comment period was open from Oct. 11 to Nov. 11.   All comments submitted were included in the permanent public record

For additional information, contact Mr. John Hook, Environmental Resource Specialist, at 509-527-7239.

The Draft FONSI and EA are available in electronic form below.

Aquatic Invasive Rapid Response Plan

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*****Comment Period ended August 19. Final FONSI available below************

The U.S. Army Corps of Engineers, Walla Walla District (Corps) is proposing to assist the states with establishing and executing rapid response measures if discovery of dreissenid mussels within the four-state area occurs.  Rapid response actions could also be conducted by the Corps or by other federal land managing agencies at federally owned or managed water resources projects and related facilities (e.g., dams, boat ramps, etc.) within the CRB.  The proposed action is needed because the risk of water bodies in the CRB being infected is high and the introduction and establishment of zebra or quagga mussels has the potential to cause billions of dollars in economic damage and untold damage to the ecosystem and the species dependent upon it.

The Corps solicited comments on a Draft Finding of No Significant Impact (FONSI) and Environmental Assessment (EA) for a Rapid Response Action Plan (Plan) for the eradication of potential zebra (Dresissena polymorhpa) and quagga mussel (D. bugensis), infestations in the Columbia River Basin (CRB), as well as across infested waterbodies in the states of Washington, Oregon, Idaho, and Montana.

 

The 30-day comment period was be from July 19, 2019 to August 19, 2019.  All information and comments submitted were included in the permanent public record and addressed in the final FONSI.

 The Final FONSI and EA are available in electronic form below.

Columbia Park Land Conveyance

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The Walla Walla District of the U.S. Army Corps of Engineers (Corps) is considering a request from the City of Kennewick, Washington, to dispose of approximately 72 acres of land in Columbia Park. The requested land disposal includes soccer fields, the Playground of Dreams, and Columbia Park Pond. The land disposal in Columbia Park is being considered under the Water Resources Development Act of 1996, Section 501(i). 

Public input/comments were gathered from July 8 through August 8, 2019 and the comment period has since closed.

For more information please contact the Corps’ environmental coordinator at 509-527-7256.

Flowering Rush Control Project

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The U.S. Army Corps of Engineers, Walla Walla District (Corps) released the Draft Finding of No Significant Impact (FONSI) and Environmental Assessment (EA) for flowering rush control in the States of Washington, Idaho, Oregon, and Montana.  Flowering rush is an aquatic invasive plant species, non-native to the Pacific Northwest.

The Corps proposes to share flowering rush control treatment costs with the Pacific States Marine Fish Commission to treat infestations on non-Federal lands.  The goal of treatment is to prevent and/or minimize the impacts of flowering rush invasion on habitat, irrigation, and recreation.  The aim is to eradicate known and future flowering rush populations and provide continued subsequent control at a much-reduced effort.

The Corps’ participation in this project is authorized under Section 1039(d) of the Water Resources Reform and Development Act of 2014 (Public Law 113-121) and Section 1178 of the Water Infrastructure Improvements for the Nation Act of 2016 (Public Law 114-322).

The 30-day comment period was from June 24, 2019 to July 24, 2019 and has since closed.  All information and comments submitted will be included in the permanent public record.

 

The Draft FONSI and EA are available in electronic form below.

Weston Water System Improvements Project 595

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*****Update: This comment period is now closed************

The U.S. Army Corps of Engineers, Walla Walla District (Corps) invites your comments on the Draft Finding of No Significant Impact (FONSI) for the City of Weston Water System Improvements Project.

Under the authority of Section 595 of the Water Resources Development Act of 1999, the Corps proposes to assist the City of Weston, Idaho with construction funding for the drilling of two test wells and a production well and well house. 

The 30-day comment period was from June 17, 2019 through July 17, 2019.  All information and comments submitted was included in the permanent public record.

The draft FONSI and associated appendices are available in electronic form through the Corps’ website at:  www.nww.usace.army.mil/Missions/Environmental-Compliance/.

City of Council Wastewater Improvement Project 595

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*****Update: This comment period is now closed************

The U.S. Army Corps of Engineers, Walla Walla District (Corps) invites your comments on the Draft Finding of No Significant Impact (FONSI) for the City of Council Wastewater Improvement Project.

The Corps proposes to assist the City of Council, Idaho (City) with funding for the preliminary engineering design for the entire wastewater improvements project and final engineering design of the wastewater collection system improvements.  The Corps would also perform an engineering review on the final 90% submittal of the wastewater collection system prior to project closeout.  The Corps participation in this project is authorized under Section 595 of the Water Resources Development Act of 1999.

The 30-day comment period was from May 20, 2019 through June 20, 2019. All information and comments submitted was included in the permanent public record.
The draft FONSI and project Environmental Review Document are available below.

Sweetwater & Lapwai Creeks Aquatic Ecosystem Restoration Study

Garden City Flood Risk Management Study

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Garden City Flood Risk Management Feasibility Study information has moved to it's own page. Please visit the http://www.nww.usace.army.mil/GardenCity_FRM_FeasibilityStudy/ for latest information. 

Waitsburg Flood Risk Management Study

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****Update: This comment period is now closed****

 

The U.S. Army Corps of Engineers, Walla Walla District (Corps), invites public comments regarding the scope of the Corps’ proposed feasibility study and environmental assessment (study) to evaluate alternatives and recommend a plan to reduce the City of Waitsburg’s flood risks along the Touchet River.

The Corps is particularly interested in public input about alternatives and environmental effects that should be considered. Written comments will be accepted Aug. 29 through Sept. 29, 2018.

The Continuing Authorities Program, Section 205 of the Flood Control Act of 1948 (Public Law 80 858) 33 USC 701s, as amended in the Water Resource Development Act of 1986, and Water Resource Reform and Development Act of 2014 authorizes Corps to enter into a cost-share partnership with a non-federal sponsor to plan and construct small flood risk reduction projects that have not been specifically authorized by Congress and are not part of a larger project.

The Corps is soliciting public opinion on relevant issues and environmental effects that should be considered in the study. Scoping comments will be used in: 1) identifying potential and key issues to address; 2) exploring potential flood-risk-management alternatives, in addition to no action; and 3) identifying potential environmental effects associated with potential flood-risk-management activities.

A public notice about the proposed study is available for viewing or downloading in the "Links" section of this web module.

Written comments will be accepted Aug. 29 through Sept. 29, 2018. Information and comments submitted will be included in the public record. Electronic comments may be filed directly online using the NEPA Online Comment Form on the webpage, or by emailing to NEPANWW@usace.army.mil, noting “Waitsburg FRM” in the subject line.

Comments may also be mailed to:
U.S. Army Corps of Engineers
Walla Walla District
ATTN: PPL-C (Waitsburg FRM)
201 North 3rd Avenue
Walla Walla, WA 99362-1876

Contact Us

Environmental Compliance
201 N. 3rd Ave.
Walla Walla, WA 99362

NEPANWW@usace.army.mil