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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.

Firth Wastewater Improvement 595/ Feb. 15- Mar. 16

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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) for the Firth Wastewater System Improvements Project.

The Corps proposes to assist the City of Firth, Idaho with upgrades to their Wastewater Treatment Facility to address reliability, capacity, operation, and maintenance concerns.  The Corps would fund project costs incurred by the Government, i.e., the Project Partnership Agreement package preparation, design process reimbursements, design review, the Corps National Environmental Policy Act (NEPA) compliance, and project management.  The Corps participation in this project is authorized under Section 595 of the Water Resources Development Act of 1999.

The 30-day comment period will be from Feb. 15, 2019, through March 16, 2019. 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 “Firth 595” in the subject line.

White Bird Wastewater 595

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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) for the White Bird Wastewater System Improvements project.
The Corps proposes to assist the City of White Bird, Idaho (City) with funding for the installation of mechanical and plumbing parts for the headworks, lagoons, and lift station; and purchase and installation of the concrete vaults, lift stations, and pond liners. The Corps participation in this project is authorized under Section 595 of the Water Resources Development Act of 1999.
The 15-day comment period will be from January 23, 2019 through February 7, 2019. 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 “White Bird 595” in the subject line.

You may also mail comments to:
U.S. Army Corps of Engineers, Walla Walla District,
CENWW-PPL-C – White Bird 595
201 North 3rd Avenue
Walla Walla, WA 99362-1876.

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

Firth and Basalt Wastewater Project

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****The 15-day comment period closed on January 28, 2019. All information and comments submitted was included in the permanent public record.

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 Basalt Wastewater System Improvements Project.

The Corps proposes to assist the city of Basalt, Idaho (City) with upgrades to their Wastewater Treatment Facility to address reliability, capacity, operation, and maintenance concerns. The Corps would fund project costs incurred by the Government, i.e., the Project Partnership Agreement package preparation, design process reimbursements, design review, the Corps National Environmental Policy Act compliance, and project management. The Corps would also provide funding for replacement of approximately 1,670 feet of pipeline, reconnecting service lines, and a video inspection of the new pipelines. The Corps participation in this project is authorized under Section 595 of the Water Resources Development Act of 1999.

The final FONSI and project Environmental Information Document are available below. 

Mill Creek Fish Passage

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The Walla Walla District of the U.S. Army Corps of Engineers (Corps) is soliciting comments from the public regarding the Corps’ proposal to grant permission pursuant to 33 United States Code (USC) Section 408 (Section 408) for alteration to a Corps-constructed harbor or river improvement (public work).  Section 408 authorizes the Secretary of the Army to grant permission for the alteration or occupation or use of a public work if the Secretary determines that the activity will not be injurious to the public interest and will not impair the usefulness of the project.

The Corps proposes to grant Section 408 permission for the alteration of a segment of the Mill Creek flood risk management channel.  The segment extends from the Park Street Bridge upstream to the Otis Street Bridge in Walla Walla, Washington. 

Figure 1.  Location of fish passage improvements within the Mill Creek flood risk management channel.Figure 1.  Location of fish passage improvements within the Mill Creek flood risk management channel.

 

 

 

 

Figure 2.  Location of fish passage improvement (area in red).  Park Street Bridge is on the left end, Otis Street Bridge is on the right end.

 

 

 

 

Figure 2.  Location of fish passage improvement (area in red).  Park Street Bridge is on the left end, Otis Street Bridge is on the right end.

The Corps proposes to grant permission to the Tri-State Steelheaders to modify about 880 linear feet of the Mill Creek flood risk management channel to improve passage conditions for native fish.  Portions of the flat concrete bottom of the channel would be removed and replaced with pre-cast concrete roughened panels and resting pools with boulders.  Existing concrete baffles that alternate from side to side across a low-flow trench down the center of the channel would be removed and replaced with new baffles spaced closer together along one side of the trench.  The modifications would not affect the structural integrity or the flow capacity of the channel.

The work is anticipated to be performed in summer 2019.

This project is the latest phase of the Mill Creek Work Group program to improve fish passage conditions in the Mill Creek flood risk management channel.  The Corps previously prepared a programmatic Environmental Assessment (EA) in 2016 that evaluated the effects of the Corps granting Section 408 permission for the fish passage improvement program.  The Corps determined granting Section 408 permission each time another phase of the program is proposed would have no significant impact to the human environment.

COMMENTS:  Interested parties are invited to provide their comments on the proposed Corps action.  The Corps is particularly interested in your opinion on issues and environmental effects that should be considered. 

COMMENT PERIOD:  Comments must be submitted or postmarked no later than Jan. 24, 2019.  You may submit comments electronically online at: http://www.nww.usace.army.mil/EnvironmentalComplianceComment/ or via e-mail to NEPANWW@usace.army.mil

You may also mail comments to:

U.S. Army Corps of Engineers, Walla Walla District
CENWW-PPL-C
Mill Creek Fish Passage 408
201 N. 3rd Avenue
Walla Walla, WA  99362-1876

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. 

 

 

 

Mill Creek GI Feasibility Study

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Mill Creek GI Feasibility information has moved to it's own page. Please visit https://www.nww.usace.army.mil/MillCreekGI/ for the latest information. 

Pierce Wastewater Improvements Project 595

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****Comment Period Closed Sept. 24, 2018****

The U.S. Army Corps of Engineers’ Walla Walla District invites public comments on its draft Finding of No Significant Impact (FONSI) for the City of Pierce, Idaho, Wastewater Improvements Project.

The Corps proposes to assist the city with upgrades to their wastewater system. The city’s proposed action includes improvements to the sewer collection system, upgrades to the Water Resource Recovery Facility (WRRF) and construction of a parallel treatment system to meet redundancy requirements. The existing sludge drying beds would be replaced with mechanical dewatering, and equalization storage and concrete sediment basin would be installed at the Water Treatment Plant.. The Corps is not assisting the city with the entire proposed project.

The Corps and the city have agreed the Corps would provide funding for separable elements that are part of their Phase II improvements at the WRRF for disinfection upgrades and construction of the headwork’s facility. The Corps' participation in this project is authorized under Section 595 of the Water Resources Development Act of 1999.

The city prepared an Environmental Review (ER) document to address potential effects associated with implementation of the wastewater collection and treatment system improvements project. After an independent review of the city’s ER, the Corps found it to provide both sufficient evidence and analysis to meet the Corps’ requirements pursuant to the National Environmental Policy Act (NEPA), and has accepted and incorporated it as part of the Corps’ NEPA documentation.

The Corps’ draft FONSI, which includes the City of Pierce's ER as one of several attachments, is located below for viewing or downloading. The Corps will accept public comments Aug. 23 through Sept. 24, 2018, 2018. All information and comments submitted will be included in the public record.

 

Waitsburg Flood Risk Management Study

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****Public Scoping Period Begins Aug. 29, 2018****

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

Duportail Trail Project

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****Comment Period Begins July 20, 2018****

The U.S. Army Corps of Engineers, Walla Walla District (Corps), invites public comments on proposed improvements for a section of the multi-use Duportail Trail. The trail section would follow the alignment of a gravel path that is located along the northeast shoreline of the lower Yakima River from the Chamna Natural Preserve to Duportail Street in Richland, Washington. This trail would be located entirely on Corps-managed lands.

The Corps proposes to enter into a partnership agreement with Tapteal Greenway Association (Tapteal), a non-profit organization, to allow improvements to the multiuse trail by grading, widening, placing gravel, and addressing eroded areas along the entire alignment. Tapteal would provide volunteer labor, materials, and equipment for the proposed improvements. The project description is available below under “Links.” 

The Corps is informing the public of Tapteal’s proposal in order to consider and evaluate the potential direct, indirect, and cumulative impacts of the proposed action or any reasonable alternatives that should be considered. Comments received would be used to, 1) identify potential and key issues to address and, 2) identify potential environmental and social effects associated with implementation of the proposed action. Comments received would be considered by the Corps in determining whether to prepare an Environmental Assessment pursuant to the National Environmental Policy Act.

The Corps will accept comments starting on July 20, 2018, through August 20, 2018. All information and comments submitted will be included in the public record. Electronic comments may be submitted directly to the Corps using the online comment form link in the right-hand column of this page. Public comments may also be e-mailed to NEPANWW@usace.army.mil or sent via U.S. Postal Service. Insert “D-Trail” in the email subject line. Written comments sent by USPS should be addressed to:

U.S. Army Corps of Engineers, Walla Walla District
ATTN: CENWW-PPL-C (D-Trail)
201 North 3rd Ave.
Walla Walla, WA 99362-1876

Please contact the Environmental Coordinator at 509-527-7294, if you have questions.

Fort Hall Wastewater Improvements Project

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****Comment Period July 13-26, 2018 is now closed*****


The U.S. Army Corps of Engineers’ Walla Walla District invites public comments on a draft Finding of No Significant Impact (FONSI) and Environmental Assessment (EA) for the Fort Hall, Idaho, Wastewater Improvements Project. Comments are due to the Corps no later than Thursday, July 26, 2018.

The Corps proposes to assist the Shoshone-Bannock Tribes to replace a wastewater pump station and 1,600 feet of associated sewer lines on the Fort Hall Reservation, Idaho, and evaluates the environmental effects of the proposed action. The pump station is reaching the end of its design life, with observed mechanical and structural deficiencies. Corps participation in this project is authorized under Section 595 of the Water Resources Development Act of 1999.

Corps’ draft FONSI and EA are located below for viewing or downloading.

Written comments will be accepted July 13-26, 2018. All information and comments submitted will be included in the public record. Electronic comments may be submitted directly to the Corps using the online comment form link in the right-hand column of this page. Public comments may also be e-mailed to NEPANWW@usace.army.mil or sent via U.S. Postal Service. Insert “Fort Hall 595” in the email subject line. Written comments sent by USPS should be addressed to:

U.S. Army Corps of Engineers, Walla Walla District
ATTN: CENWW-PPL-C (Fort Hall 595)
201 North 3rd Ave.
Walla Walla, WA 99362-1876

Please contact the Environmental Coordinator at 509-527-7239, if you have questions.

Weaver Bridge levee repair Section 408 Public Notice

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****Comment Period Begins Feb. 28, 2018****

Interested parties are hereby notified that the Walla Walla District of the U.S. Army Corps of Engineers (Corps) is soliciting comments from the public regarding the Corps’ proposal to grant permission pursuant to 33 United States Code (USC) Section 408 (Section 408) for alteration, occupation, or use of a Corps-constructed harbor or river improvement (public work). Section 408 authorizes the Secretary of the Army to grant permission for the alteration, occupation, or use of a public work if the Secretary determines that the activity will not be injurious to the public interest and will not impair the usefulness of the project.

The Corps proposes to grant Section 408 permission to Wallowa County (County) for repair of the upstream end of the right bank levee and for abandonment of a part of the right-of-way for the levee. The levee was constructed by the Corps in 1960 as part of a project to protect the bridge abutment and reduce overbank flooding and erosion. The right bank levee was originally 692 feet long. However, the river has eroded about 180 feet from the upstream portion of the levee (Figure 2), leaving an exposed vertical embankment at the end of the levee. Most of the erosion appears to have occurred during high flows in 1964, but is still slowly progressing downstream towards the bridge.

Wallowa County is proposing to add rip rap armoring to the upstream end of the levee as it currently exists to prevent further erosion (Figures 3 and 4). The County would excavate a trench at an angle across the levee to create a slope. The landward side of the trench would tie in to the adjacent high ground. The County would armor the slope with rip rap, then backfill the trench. All construction would take place in the dry as the County would set back the trench to leave a berm between the trench and the river. The County proposes to perform the levee repairs in the spring of 2018.

To comment on this and other projects you can use our online comment form. To see the full notice click the link below.

 

Lucky Peak Lake View Trail EA

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****UPDATE July 29, 2017****

Public Scoping was conducted June 30 through July 28, 2017. Scoping comments received will be used to 1) identify potential and key issues to address, 2) explore project alternatives, and 3) identify potential environmental effects associated with the proposed action.

****Comment Period Begins June 30, 2017****

The U.S. Army Corps of Engineers, Walla Walla District (Corps), invites public scoping comments for an Environmental Assessment (EA) addressing a proposed mountain bike trail at Lucky Peak Dam and Lake near Boise, Idaho. Written comments will be accepted until July 28, 2017.

The Corps proposes to construct a mountain bike trail from Lucky Peak Dam to the Chimney Rock park area. The project proponent is the Southwest Idaho Mountain Bike Association, a non-profit organization that would provide volunteer labor and equipment for construction of the proposed trail. The bike association’s trail proposal to the Corps is available below under “Links.”

The Corps’ EA will address the project background, the purpose and need, environmental issues relating to trail construction, potential impacts resulting from the alternatives considered (including the no action alternative), and public involvement and agency coordination.

The Corps seeks public scoping input on relevant issues and environmental effects that should be considered. Scoping comments will be used to 1) identify potential and key issues to address, 2) explore project alternatives, and 3) identify potential environmental effects associated with the proposed action.

Written comments will be accepted until July 28, 2017. All information and comments received will become part of the permanent public record. Electronic comments may be filed directly online using the NEPA Online Comment Form in the right-hand column of this webpage , or by emailing to NEPANWW@usace.army.mil, noting “LPLVT” in the subject line. Comments may also be mailed via U.S. Postal Service to:

U.S. Army Corps of Engineers
Walla Walla District
ATTN: PPL-C, LPLVT
201 North 3rd Avenue
Walla Walla, WA 99362-1876

Gooding Flood Control Project Rehabilitation Report and EA

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The Walla Walla District of the U.S. Army Corps of Engineers (Corps) invites public comments on the Draft Finding of No Significant Impact (FONSI) for the Corps' proposed Gooding Flood Control Project Rehabilitation Report and Environmental Assessment (Report/EA). The comment period is open Sept. 7-21, 2016.

The Report/EA describes actions the Corps could take to provide localized flood risk management and (if possible) ecosystem restoration through improvement of aquatic habitat and riparian vegetation.

Comments must be emailed or postmarked no later than Sept. 21, 2016, to be considered and included in the public record. You may submit comments via email to NEPANWW@usace.army.mil, noting "Gooding Flood Control" in the subject line. You may also mail comments to: 

U.S. Army Corps of Engineers
Walla Walla District 
ATTN: CENWW-PD-EC – Gooding Flood Control 
201 North 3rd Ave. 
Walla Walla, WA 99362-1876 

For additional information or questions, please contact the Walla Walla District's Environmental Compliance Section at 509-527-7288.

Dworshak Access Management Plan

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UPDATED (Aug. 26, 2016) -- The U.S. Army Corps of Engineers’ Walla Walla District issued a Finding of No Significant Impact (FONSI) for the Environmental Assessment (EA) for the Dworshak Programmatic Land-based Access Management Plan (Plan).  

The plan describes actions the Corps could take to manage land-based access on lands surrounding Dworshak Dam and Reservoir to reduce trespass, control unauthorized access, meet current and future public demand for motorized and non-motorized access and recreation, and facilitate natural resource stewardship actions by the Corps.


The Corps solicited public comments on its draft FONSI June 29 through July 29, 2016. The signed FONSI and EA, with the Plan and Appendices is available in electronic form via the hyperlink located below. 

For additional information or questions about access management at Dworshak, please contact natural resources staff at 208-476-1255.

Contact Us

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

NEPANWW@usace.army.mil