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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.

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.

Wilson Bridge Boat Ramp Improvement / July 11-Aug 13, 2018

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****Open Comment Period begins July 11, 2018*****

The Walla Walla District Corps of Engineers (Corps) invites your comments on its Draft Finding of No Significant Impact (FONSI) for the Wilson Bridge Boat Ramp Improvements, Section 408 Permission, in Teton County, Wyoming (project number PM-EC-2018-0049).

The Corps proposes to grant permission under 33 United States Code Section 408 (Section 408) to Teton County for alterations to a portion of Boat Ramp Levee, a Corps-constructed levee on property managed by the U.S. Bureau of Land Management (BLM) on the right bank of the Snake River near Wilson, Wyoming.  The alterations are part of Teton County’s plan to improve the function, management, and safety for boater activity at the boat ramp.  The Corps proposes to grant Section 408 permission only for those elements of the plan that would affect the levee.

To satisfy the National Environmental Policy Act (NEPA) analysis requirements, the Corps plans to adopt the Environmental Assessment (EA), Recreational Improvements on Parcel 13, DOI-BLM-WY-100-2014-0058-EA, prepared by the BLM in 2014 for issuing a right-of-way to the County for the overall improvement project.  The BLM previously posted notification of the EA on their public NEPA website.  The Corps also plans to accept the Environmental Analysis, Wilson Boat Ramp, prepared by Intermountain Aquatics, Inc., in 2016 for Teton County.  The Corps independently reviewed these documents and determined the information contained within them is accurate and satisfies the requirements of the NEPA regulations.

Public comments may be submitted July 11, 2018 through Aug. 13, 2018. Comments must be emailed or postmarked no later than Aug. 13, 2018, to be considered.  All comments submitted will become part of 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.  

 

Comments may also be emailed to NEPANWW@usace.army.mil, inserting “Wilson Bridge Boat Ramp 408” in the subject line.  To submit written comments via the U.S. Postal Service, mail them to:

U.S. Army Corps of Engineers
ATTN: CENWW-PPL-C – Wilson Bridge Boat Ramp 408
201 North 3rd Ave.
Walla Walla, WA 99362-1876

The Corps draft FONSI and Teton County’s Environmental Analysis are available via the hyperlinks located below. For additional information or questions about this Section 408 permission action, please contact the Corps’ environmental coordinator at 509-527-7265.  For more information about Teton County’s proposed Wilson Bridge Boat Ramp improvement project, please contact the county’s Public Works Department at 307-733-3317.


Duportail Trail Project / July 20 - Aug. 20, 2018

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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.

Weippe Wastewater Project

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****UPDATE -- FONSI signed July 11, 2018*****

****UPDATE -- Comment Period Closed June 27, 2018****

****Comment Period Begins June 13, 2018****


The U.S. Army Corps of Engineers’ Walla Walla District issued a Finding of No Significant Impact (FONSI) on July 11, 2018, for the City of Weippe, Idaho, Wastewater Collection and Treatment System Improvements Project.

The Corps plans to assist the city with upgrades to their municipal water system. The city’s proposed action is to rehabilitate aged pipes and address lagoon leaks to minimize infiltration and inflow entering the system and exfiltration of sewer from the system. The proposed project also includes upgrades to the city’s treatment facilities to improve operations. The Corps is not assisting the city with the entire proposed project.

The Corps and the city have agreed the Corps would fund project engineering, any non-reimbursable costs incurred by the Corps, the Corps’ archaeological monitoring, the Corps’ environmental review, and sewer collection system materials. The Corps’ funding would be used to repair/replace existing sewer system pipes and appurtenances, install wastewater flow measurement devices, modify wastewater control systems, replace the chlorine disinfection system, and install a system failure alarm. The Corps participation in this project is authorized under Section 595 of the Water Resources Development Act of 1999.

The city prepared an Environmental Report (ER) 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 been accepted and incorporated it as part of the Corps’ NEPA documentation.

Corps’ FONSI, which includes the City of Weippe’s ER as an attachment, is located below for viewing or downloading. A public review and comment period was conducted June 13-27, 2018. All information and comments submitted are included in the public record.

Please contact the Environmental Coordinator at 509-527-7256, if you have questions.

Driggs Water Improvement Project

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****UPDATE -- FONSI signed July 11, 2018*****

****UPDATE -- Comment Period Closed June 27, 2018****

****Comment Period Begins June 14, 2018****


The U.S. Army Corps of Engineers’ Walla Walla District issued a Finding of No Significant Impact (FONSI) for the City of Driggs, Idaho, Water Improvements Project.

The Corps plans to assist the city with upgrades to their water system. The city’s full proposed action includes waterline replacement (for both deepening and increasing capacity), constructing new waterlines to interconnect existing water tanks, replacing solenoid control valves, installing security fences, constructing a tank well pump house, chlorine treatment for ground water sources, booster pumps, generator transfer switches, upgrading Supervisory Control and Data Acquisition (SCADA) systems, telemetry upgrades, acquiring two trailer mounted generators, pressure transmitters, and installing radio transceivers on existing water meters. 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 contract administration, design, construction management, inspection, the purchase of telemetry equipment and programming, as-built water system maps along with survey and GIS equipment, and improvements to the city’s existing Valley Center and Teton Creek Wells. The Corps participation in this project is authorized under Section 595 of the Water Resources Development Act of 1999.

The city submitted an Environmental Review Record (ERR), prepared by The Development Company, to address potential effects associated with implementation of the water improvement project. After an independent review of the city’s ERR, the Corps determined the information contained therein is accurate and satisfies the requirements of the National Environmental Policy Act (NEPA) regulations, except as supplemented or explained in Section V. The ERR, therefore, has been accepted and incorporated as part of the Corps’ NEPA documentation.

A public review and comment period of the Corps' FONSI was conducted June 14-28, 2018. All information and comments submitted are included in the public record. The Corps’ FONSI, the City of Driggs’ ERR and other associated attachments are located below for viewing or downloading.

If you have questions, call the Corps’ Environmental Coordinator at 509-527-7256.

Ashton Wastewater Improvements Project

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****FONSI signed July 6, 2018*****

****UPDATE -- Comment Period Closed June 21, 2018****

****Comment Period Begins June 7, 2018****

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 Ashton, Idaho, Wastewater Improvements Project. Comments are due to the Corps no later than Thursday, June 21, 2018.

The Corps proposes to assist the City of Ashton to replace 8,100 feet of failing sewer lines in Fremont County, Idaho and evaluates the environmental effects of the proposed action. The sewer lines are of concrete and clay construction and were installed prior to 1960. Corps participation in this project is authorized under Section 595 of the Water Resources Development Act of 1999.

The Corps’ draft FONSI, EA and related documents are available in the below "Links" section.

Written comments will be accepted from June 7 through June 21, 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. Mail. Insert “Ashton 595” in the email subject line. Mail written comments to:

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

If you have questions, write or e-mail the Corps at the addresses above, or call the Corps’ Environmental Coordinator at 509-527-7239.

Lower Granite Master Plan

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Lower Granite Master Plan information has moved to it's own page. Please visit http://www.nww.usace.army.mil/Locations/District-Locks-and-Dams/Lower-Granite-Master-Plan/ for the latest information. 

Waitsburg Levee Rehabilitation

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****FONSI Signed July 9, 2018****

The U.S. Army Corps of Engineers’ Walla Walla District issued a Finding of No Significant Impact (FONSI) on July 9, 2018, to repair the Waitsburg Levee System along the Touchet River in Walla Walla County, Washington.  The levee was damaged by sustained high flows during the 2017 flood season. 

The Corps is authorized under Public Law (PL) 84-99 to supplement local efforts in the repair of flood-risk-management projects damaged by flooding events.

The Corps prepared an Environmental Assessment for this rehabilitation project to restore the levee to its pre-flood-damage condition.

The Corps’ signed FONSI, EA and other associated attachments are located below for viewing or downloading.

Please contact the Environmental Coordinator at 509-527-7245, if you have questions about this rehabilitation project. For more information about the Corps’ PL 84-99 programs, visit our Flood Assistance webpage http://www.nww.usace.army.mil/Missions/Flood-Assistance/.


Heise-Roberts Levee Rehabilitation

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 ****FONSI Signed June 29, 2018****

The U.S. Army Corps of Engineers’ Walla Walla District issued a final Finding of No Significant Impact (FONSI) on June 29, 2018 to repair several sections of the Heise-Roberts Levee System along the Snake River in Jefferson and Madison counties, Idaho. The levees were damaged by sustained high flows during the 2017 and 2018 flood seasons.

The Corps is authorized under Public Law (PL) 84-99 to supplement local efforts in the repair of flood-risk-management projects damaged by flooding events.

The Corps prepared an Environmental Assessment for this rehabilitation project to restore the levee to its pre-flood-damage condition.

The Corps’ signed FONSI, EA and other associated attachments are located below for viewing or downloading.

Please contact the Environmental Coordinator at 509-527-7245, if you have questions about this rehabilitation project. For more information about the Corps’ PL 84-99 programs, visit our Flood Assistance webpage http://www.nww.usace.army.mil/Missions/Flood-Assistance/.

Notus Wastewater Improvements Project

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****UPDATE -- Comment Period Closed April 25, 2018****

****Comment Period Begins April 10, 2018****

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 Notus Wastewater Improvements Project.

The Corps proposes to assist the city of Notus, Idaho (City) with upgrades to their wastewater collection system.  The City’s proposed action includes collection system repairs, lagoon dredging, seepage testing after dredging, influent screen installation, construction of disinfection system, aeration upgrades, and influent/effluent flow measurement.  The Corps is not asisting the City with the entire proposed project.  The Corps and the City have agreed the Corps would provide funding to replace part of the collection system from the north side of Highway 26 to the influent pipe of the first lagoon.  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 April 10, 2018 through April 25, 2018.  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/Environmental ComplianceComment/ or via email to NEPANWW@usace.army.mil, inserting “Notus Section 595” in the subject line. 

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

Jackson Hole Flood Protection Project

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****Comment Period Begins March 9, 2018****

The U.S. Army Corps of Engineers, Walla Walla District (Corps) invites your comments on the Draft Finding of No Significant Impact (FONSI) and Supplemental Environmental Assessment (SEA) for the Jackson Hole Flood Protection Project Operation and Maintenance (O&M) Program.

The Corps is supplementing National Environmental Policy Act (NEPA) documentation for the O&M program for the Federal and non-Federal levees that make up the Jackson Hole Flood Protection Project (JHFPP) along the Snake and Gros Ventre Rivers near Jackson, Wyoming.  The SEA evaluates current and proposed O&M actions and associated potential environmental effects that may not have been adequately addressed in the April 1990 Jackson Hole, Wyoming Flood Protection Project O&M Decision Document and Environmental Impact Statement (1990 O&M Decision Document/EIS) (Corps, 1990).  The SEA is tiered to and incorporates by reference the 1990 O&M Decision Document/EIS.  The Corps is proposing to continue to operate and maintain the JHFPP consistent with its authorized purposes, while minimizing adverse effects to the environment.

The 30-day comment period will be from March 9, 2018 through April 9, 2018.  All information and comments submitted will be included in the permanent public record.

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.

 

St. Hilaire Pump Station Expansion

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****Comment Period Begins Feb. 23, 2018****

The U.S. Army Corps of Engineers, Walla Walla District (Corps) released the Final Signed Finding of No Significant Impact (FONSI) for the St. Hilaire Columbia River Pump Station Expansion and East Improvement District (EID) New Pump Station Project.

The Corps is proposing to amend St. Hilaire's existing irrigation pump station Real Estate easement to allow for the expansion of their existing pump station.  The Corps is also proposing to issue a new easement to the EID for the construction of a new pump station within St. Hilaire's existing easement area/footprint.  The new, adjacent pump station would be owned and operated by EID, which is comprised of nine farms that own more than 28,000 acres of farmland.  The action is necessary due to an ongoing and critical groundwater shortage issue in the Lower Umatilla Basin.

The 15-day review and comment period was from February 23 through March 9, 2018.  One comment was received which has been addressed and incorporated into the Final FONSI.

 

All documents can be found below.

Stites Wastewater System Improvement Project

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The U.S. Army Corps of Engineers’ Walla Walla District issued a final Finding of No Significant Impact (FONSI) for the City of Stites Wastewater System Improvement Project on Feb. 6, 2018.

The Corps plans to assist the city of Stites, Idaho (City) with upgrades to their wastewater system. The City’s project will include replacement of the collection system to reduce infiltration and inflow of water and chemical injection at the City’s lift station to mitigate the formation of hydrogen sulfide. The Corps is not assisting the City with the entire proposed action. The Corps and the City have agreed the Corps will provide funding for engineering design, preparation of plans and specifications, and camera inspection of existing sewer lines. Remaining funds will be used for replacement of manholes. The Corps participation in this project is authorized under Section 595 of the Water Resources Development Act of 1999.

The City submitted an Environmental Information Document (EID) for this project, prepared by TD&H Engineering. The Corps had no role in the preparation of the EID, but did undertake an independent review of the EID and determined the information contained therein is accurate and satisfies the requirements of the National Environmental Policy Act (NEPA) regulations, except as supplemented or explained in Section V of the FONSI.

A public review and comment period of the Corps' draft FONSI was conducted December 29, 2017 through January 12, 2018. All information and comments submitted are included in the permanent public record. The City’s EID and the Corps’ signed FONSI are available for viewing 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

Contact Us

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

NEPANWW@usace.army.mil